CN102927054B - Core-cladding integral disassembling and assembling type radially-split type double-section pump - Google Patents
Core-cladding integral disassembling and assembling type radially-split type double-section pump Download PDFInfo
- Publication number
- CN102927054B CN102927054B CN201210463404.5A CN201210463404A CN102927054B CN 102927054 B CN102927054 B CN 102927054B CN 201210463404 A CN201210463404 A CN 201210463404A CN 102927054 B CN102927054 B CN 102927054B
- Authority
- CN
- China
- Prior art keywords
- pump
- suction chamber
- water
- pump cover
- mechanical seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a radially-split type double-section pump with a core-cladding integral disassembling and assembling structure. The radially-split type double-section pump comprises a pump body, a pump shaft, an impeller, a left mechanical seal, a right mechanical seal, a bearing, a left bearing body and a right bearing body; and a water inlet barrel and a water outlet barrel are arranged on the pump body. The radially-split type double-section pump is characterized by being provided with an internal pump cover, an external pump cover and a fixing plate, wherein the pump body is axially provided with a cylindrical mounting sleeve hole which is communicated with the water inlet barrel and the water outlet barrel respectively; an internal positioning bulge loop is arranged in the mounting sleeve hole at the left end of the pump body; the front end of an impeller on the pump shaft is connected with an internal pump cover, and the rear end of the impeller is connected with an external pump cover; the front end of an internal pump cover is fixedly connected with a left bearing body on the pump shaft by a positioning flange; the rear end of an external pump cover is fixedly connected with a right supporting body on the pump shaft, so that the pump shaft forms an integral core cladding; the core cladding is integrally inserted into the cylindrical mounting sleeve hole of the pump body; the front end of the pump body props against an internal positioning ring through a water sucking chamber on the internal pump cover and is fixedly connected with the internal positioning ring by the fixing plate; and the rear end of the pump body is fixedly connected with the fixing flange on the external pump cover. The radially-split type double-section pump has the advantages of being short in maintenance time, high in usage performance of equipment, convenient to lift and mount, and convenient for mounting and dismounting in maintaining and overhauling.
Description
Technical field
The present invention relates to double suction pump technical field, specifically a kind of radially split type double suction pump of core bag integral disassembly, assembly structure.
Background technique
As everyone knows, the radial subdivision double suction pump under high temperature and high pressure condition is by the pump housing, pump shaft, impeller, pump cover, bearing, left bearing body, right bearing body, left mechanical seal, right mechanical seal composition, the pump housing is provided with flooding tube and water output cylinder, pump housing side is fixedly connected with pump cover, make to form suction chamber between the pump housing and pump cover, suction chamber is connected with water output cylinder with flooding tube respectively, the pump housing and pump cover string are on pump shaft, in order to ensure the sealing of suction chamber, usually left Seal cage is provided with at the center of the pump housing, right Seal cage is provided with at the center of pump cover, left mechanical seal is provided with in left Seal cage, left mechanical seal is fixedly connected with the pump housing through left sealing cover, right mechanical seal is provided with in right Seal cage, right mechanical seal is fixedly connected with pump cover through right sealing cover, pump shaft left end is fixedly connected with left bearing body through bearing, right-hand member is fixedly connected with right bearing body through bearing, left bearing body is fixedly connected with the pump housing, right bearing body is fixedly connected with pump cover, its deficiency is: one is: because existing middle-opening pump is mainly applicable to waterworks, irrigate, drainage pumping plant, power station, industrial water supply system, air-conditioning system, fire-fighting system, shipping industry, also can be used for petroleum refining industry, the impact of Environmental Conditions causes pump structure complicated, and needs timing maintenance, causes removing and installing loaded down with trivial details, during maintenance special charges, during installation, be first arranged on pump shaft by impeller, stuffing box gland is installed again respectively in impeller two ends, pump shaft is penetrated in the pump housing, be inserted in pump cover at pump shaft right-hand member, pump cover be fixed on the pump housing, then distinguish the pump shaft left mechanical seal of upper installation successively on the left of the pump housing, bearing and bearing support, right mechanical seal installed successively by the pump shaft on the right side of pump cover, bearing and bearing support, otherwise, but when needing maintenance, then oppositely dismantle from pump housing two ends respectively, the dismounting process of such disassembly and assembly structure, greatly reduce the usability of equipment, greatly reduce installation simultaneously, safeguard, the working efficiency of maintenance, extends maintenance time, two is to lift by crane conveniently, hanger is fixed in two ends above pump cover respectively by some producers, normally cast pump cover time by hanger together casting, some producers use rope to have been pulled by the pump housing and lifted by crane, the former deficiency is: add casting cost, unsightly, the deficiency of the latter is profile: easily cause damage to the outward appearance of pump.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, a kind of modern design be provided, meet applying working condition, working efficiency is high, maintenance time is short, equipment use performance is high, lifting is convenient, install, safeguard, maintenance time easy accessibility the radially split type double suction pump of core bag integral disassembly, assembly structure.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of radially split type double suction pump of core bag integral disassembly, assembly structure, comprise the pump housing, pump shaft, impeller, left mechanical seal, right mechanical seal, bearing, left bearing body and right bearing body, the pump housing is provided with flooding tube and water output cylinder, it is characterized in that being provided with interior pump cover, outer pump cover and fixed tray, described interior pump cover center vertically front portion is provided with left mechanical seal mounting hole, rear portion is provided with pump shaft mounting hole, mechanical seal mounting hole is connected with pump shaft mounting hole, interior pump cover outer wall front end is provided with locating flange, rear end is provided with rear suction chamber, rear suction chamber is cylindric, and the diameter of rear suction chamber is greater than the diameter of locating flange, water-inlet cavity is provided with in rear suction chamber, rear suction chamber sidewall is provided with water inlet, rear suction chamber ear end face is circumferentially with osculum, rear suction chamber front-end face is stepped, be beneficial to location sealing, the water inlet of rear suction chamber is connected with water-inlet cavity respectively with osculum, current stabilization blade is provided with in the water-inlet cavity of rear suction chamber, the water inlet of rear suction chamber is corresponding with the flooding tube of the pump housing, osculum is corresponding with the water intake of impeller, described outer pump cover center front is provided with pump shaft mounting hole vertically, rear portion is provided with right mechanical seal mounting hole vertically, pump shaft mounting hole is connected with right mechanical seal mounting hole, outer pump cover rear end is provided with fastening flange, outer pump cover front portion is provided with front suction chamber, water-inlet cavity is provided with in front suction chamber, outer side wall is provided with water inlet, front-end face is provided with circular outlets, the water inlet of front suction chamber is connected with the flooding tube of the pump housing, the water outlet of front suction chamber is corresponding with impeller intake, current stabilization blade is provided with in the water-inlet cavity of front suction chamber, the described pump housing is provided with cylindrical installation trepanning vertically, trepanning is installed be connected with water output cylinder with flooding tube respectively, inner position bulge loop is provided with in the installation trepanning of pump housing left end, wheel nose on pump shaft is connected with interior pump cover, rear end is connected with outer pump cover, left mechanical seal is provided with in the left mechanical seal mounting hole of interior pump cover, interior pump cover front end is fixedly connected with the left bearing body on pump shaft through locating flange, right mechanical seal is provided with in the right mechanical seal mounting hole of outer pump cover, outer pump cover rear end is fixedly connected with the right bearing body on pump shaft, pump shaft is made to form a core bag overall, core bag entirety is inserted in the cylindrical installation trepanning of the pump housing, pump housing front end suction chamber after on interior pump cover is inconsistent with inner position bulge loop and be fixedly connected with through fixed tray, rear end is fixedly connected with the fastening flange on outer pump cover, when the present invention needs to overhaul, only the fixing bolt need pulled down on fixed tray and outer pump cover can extract core bag out in the pump housing, substantially increase the maintainalbility of pump group, save the repair time, working efficiency is increased dramatically.
In described in the present invention after pump cover before suction chamber and front pump cover suction chamber water-inlet cavity in current stabilization blade respectively by facing blade directly and arc shaped surface blade forms, face blade directly consistent with water (flow) direction, and be positioned at the opposite side of water intake and water intake, along water (flow) direction both sides, water-inlet cavity center between mirror image be provided with arc shaped surface blade, arc shaped surface blade ecto-entad correspondence is drawn close gradually, to reach the effect of water conservancy diversion and current stabilization.
Fixed tray of the present invention is made up of the positioning ring of two semi-circular shape, with easy disassembly.
The present invention can be respectively equipped with hoisting ring in the screw upper end at pump housing two ends, and hoisting ring side is preced with the spiral shell of screw and is fixedly connected with, and makes the fastening pump housing of function of the present invention and pump cover, can be used for lifting operation again, saved equipment cost.
The present invention is owing to adopting said structure, the assembling of multiple for former need component and pump case is reduced to the assembling of core bag and the pump housing, substantially increase the maintainalbility of pump group, there is modern design, meet applying working condition, working efficiency is high, maintenance time is short, equipment use performance is high, lifting is convenient, install, safeguard, maintenance time the advantage such as easy accessibility.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the structural representation of the interior pump cover plan view in the present invention.
Fig. 4 is the plan view of Fig. 3.
Fig. 5 is the left view of Fig. 3.
Fig. 6 is the right elevation of Fig. 3.
Fig. 7 is the sectional view of A-A in Fig. 3.
Fig. 8 is the structural representation of the plan view of the pump housing.
Fig. 9 is the left view of Fig. 8.
Figure 10 is the plan view of Fig. 8.
Figure 11 is the sectional view of B-B in Fig. 9.
Figure 12 is the structural representation of the plan view of the present invention China and foreign countries pump cover.
Figure 13 is the sectional view of C-C in Figure 12.
Figure 14 is the left view of Figure 12.
Figure 15 is the plan view of Figure 11.
Reference character: the pump housing 1, pump shaft 2, impeller 3, left mechanical seal 4, right mechanical seal 5, bearing 6, left bearing body 7, right bearing body 8, interior pump cover 9, outer pump cover 10, fixed tray 11, locating flange 12, rear suction chamber 13, water-inlet cavity 14, water inlet 15, current stabilization blade 16, osculum 17, flooding tube 18, water output cylinder 19, front suction chamber 20, water-inlet cavity 21, water inlet 22, water outlet 23, fastening flange 24, current stabilization blade 25, face blade 26 directly, arc shaped surface blade 27, screw 28, hoisting ring 29.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in drawings, a kind of radially split type double suction pump of core bag integral disassembly, assembly structure, comprise the pump housing 1, pump shaft 2, impeller 3, left mechanical seal 4, right mechanical seal 5, bearing 6, left bearing body 7 and right bearing body 8, the pump housing 1 is provided with flooding tube 18 and water output cylinder 19, it is characterized in that being provided with interior pump cover 9, outer pump cover 10 and fixed tray 11, described interior pump cover 9 center vertically front portion is provided with left mechanical seal mounting hole, rear portion is provided with pump shaft mounting hole, mechanical seal mounting hole is connected with pump shaft mounting hole, interior pump cover 9 is made up of multiple stepped shaft cylindrical body, interior pump cover 9 outer wall front end is provided with locating flange 12, rear end is provided with rear suction chamber 13, rear suction chamber 13 is in cylindric, and the diameter of rear suction chamber 13 is greater than the diameter of locating flange 12, water-inlet cavity 14 is provided with in rear suction chamber 13, rear suction chamber 13 sidewall is provided with water inlet 15, rear suction chamber 13 ear end face is circumferentially with osculum 17, rear suction chamber 13 front-end face is stepped, be beneficial to location sealing, the water inlet 15 of rear suction chamber 13 is connected with water-inlet cavity 14 respectively with osculum, current stabilization blade 16 is provided with in the water-inlet cavity 14 of rear suction chamber 13, the water inlet 15 of rear suction chamber 13 is corresponding with the flooding tube 18 of the pump housing 1, osculum 17 is corresponding with the water intake of impeller 3, described outer pump cover 10 center front is provided with pump shaft mounting hole vertically, rear portion is provided with right mechanical seal mounting hole vertically, pump shaft mounting hole is connected with right mechanical seal mounting hole, outer pump cover 10 rear end is provided with fastening flange 12, outer pump cover 10 front portion is provided with front suction chamber 20, water-inlet cavity 21 is provided with in front suction chamber 20, outer side wall is provided with water inlet 22, front-end face is provided with circular outlets 23, the water inlet 22 of front suction chamber 20 is connected with the flooding tube 18 of the pump housing 1, the water outlet 23 of front suction chamber 20 is corresponding with impeller 3 water intake, current stabilization blade 25 is provided with in the water-inlet cavity 21 of front suction chamber 13, the described pump housing 1 is provided with cylindrical installation trepanning vertically, trepanning is installed be connected with water output cylinder 19 with flooding tube 18 respectively, inner position bulge loop 12 is provided with in the installation trepanning of the pump housing 1 left end, impeller 3 front end on pump shaft 2 is connected with interior pump cover 9, rear end is connected with outer pump cover 10, left mechanical seal 4 is provided with in the left mechanical seal mounting hole of interior pump cover 9, interior pump cover 9 front end is fixedly connected with the left bearing body 7 on pump shaft 2 through locating flange 12, right mechanical seal 5 is provided with in the right mechanical seal mounting hole of outer pump cover 10, outer pump cover 10 rear end is fixedly connected with the right bearing body 8 on pump shaft 2, pump shaft 2 is made to form a core bag overall, core bag entirety is inserted in the cylindrical installation trepanning of the pump housing 1, the pump housing 1 front end suction chamber after on interior pump cover 9 is inconsistent with inner position bulge loop 12 and be fixedly connected with through fixed tray 11, rear end is fixedly connected with the fastening flange 24 on outer pump cover 10, when the present invention needs to overhaul, the fixing bolt only need pulled down on fixed tray 11 and outer pump cover 10 can extract core bag out in the pump housing 1, substantially increase the maintainalbility of pump group, save the repair time, working efficiency is increased dramatically.
After described interior pump cover 9 suction chamber 13 water-inlet cavity 14 in current stabilization blade and front pump cover 10 before suction chamber 20 water-inlet cavity 21 in current stabilization blade 25 respectively by facing blade 26 directly and arc shaped surface blade 27 forms, face blade 26 directly consistent with water (flow) direction, and be positioned at the opposite side of water inlet and water inlet, along water (flow) direction water-inlet cavity 14,21 both sides, center between mirror image be provided with arc shaped surface blade 27, arc shaped surface blade 27 ecto-entad correspondence is drawn close gradually, to reach the effect of water conservancy diversion and current stabilization.
Fixed tray 11 of the present invention is made up of the positioning ring of two semi-circular shape, with easy disassembly.
The present invention can be respectively equipped with hoisting ring 29 in screw 28 upper end at the pump housing 1 two ends, and hoisting ring 29 side is preced with the spiral shell of screw 28 and is fixedly connected with, and makes the present invention can the fastening pump housing 1, interior pump cover 9 and outer pump cover 10, can be used for lifting operation again, save equipment cost.
The present invention is when overhauling, only the tight fixed bolt on the fixed tray 11 of the pump housing 1 front end and the clamping bolt on outer pump cover 10 need be disassembled respectively, make interior pump cover 9, outer pump cover 10 is separated with the pump housing 1 respectively, core bag is extracted out from the pump housing 1 rear portion, substantially increase the maintainalbility of pump group like this, overhaul complete, again core bag entirety is inserted in the cylindrical installation trepanning of the pump housing 1, the pump housing 1 front end on interior pump cover 9 before suction chamber 13 inconsistent and fix through fixed tray 11 with inner position bulge loop 12, the fastening flange of rear end on tight fixed bolt and outer pump cover 10 is fixing.
When lifting by crane, by hook hoisting ring 29, lifting operation is made to reach the effect of smooth running.
The present invention is owing to adopting said structure, the assembling of multiple for former need component and pump case is reduced to the assembling of core bag and the pump housing, substantially increase the maintainalbility of pump group, there is modern design, meet applying working condition, working efficiency is high, maintenance time is short, equipment use performance is high, lifting is convenient, install, safeguard, maintenance time the advantage such as easy accessibility.
Claims (4)
1. the radially split type double suction pump of a core bag integral disassembly, assembly structure, comprise the pump housing, pump shaft, impeller, left mechanical seal, right mechanical seal, bearing, left bearing body and right bearing body, the pump housing is provided with flooding tube and water output cylinder, it is characterized in that being provided with interior pump cover, outer pump cover and fixed tray, described interior pump cover center vertically front portion is provided with left mechanical seal mounting hole, rear portion is provided with pump shaft mounting hole, mechanical seal mounting hole is connected with pump shaft mounting hole, interior pump cover outer wall front end is provided with locating flange, rear end is provided with rear suction chamber, rear suction chamber is cylindric, and the diameter of rear suction chamber is greater than the diameter of locating flange, water-inlet cavity is provided with in rear suction chamber, rear suction chamber sidewall is provided with water inlet, rear suction chamber ear end face is circumferentially with osculum, rear suction chamber front-end face is stepped, the water inlet of rear suction chamber is connected with water-inlet cavity respectively with osculum, current stabilization blade is provided with in the water-inlet cavity of rear suction chamber, the water inlet of rear suction chamber is corresponding with the flooding tube of the pump housing, osculum is corresponding with the water intake of impeller, described outer pump cover center front is provided with pump shaft mounting hole vertically, rear portion is provided with right mechanical seal mounting hole vertically, pump shaft mounting hole is connected with right mechanical seal mounting hole, outer pump cover rear end is provided with fastening flange, outer pump cover front portion is provided with front suction chamber, water-inlet cavity is provided with in front suction chamber, outer side wall is provided with water inlet, front-end face is provided with circular outlets, the water inlet of front suction chamber is connected with the flooding tube of the pump housing, the water outlet of front suction chamber is corresponding with impeller intake, current stabilization blade is provided with in the water-inlet cavity of front suction chamber, the described pump housing is provided with cylindrical installation trepanning vertically, trepanning is installed be connected with water output cylinder with flooding tube respectively, inner position bulge loop is provided with in the installation trepanning of pump housing left end, wheel nose on pump shaft is connected with interior pump cover, rear end is connected with outer pump cover, left mechanical seal is provided with in the left mechanical seal mounting hole of interior pump cover, interior pump cover front end is fixedly connected with the left bearing body on pump shaft through locating flange, right mechanical seal is provided with in the right mechanical seal mounting hole of outer pump cover, outer pump cover rear end is fixedly connected with the right bearing body on pump shaft, pump shaft is made to form a core bag overall, core bag entirety is inserted in the cylindrical installation trepanning of the pump housing, pump housing front end suction chamber after on interior pump cover is inconsistent with inner position bulge loop and be fixedly connected with through fixed tray, rear end is fixedly connected with the fastening flange on outer pump cover.
2. the radially split type double suction pump of a kind of core bag integral disassembly, assembly structure according to claim 1, after it is characterized in that described interior pump cover before suction chamber and front pump cover suction chamber water-inlet cavity in current stabilization blade respectively by facing blade directly and arc shaped surface blade forms, face blade directly consistent with water (flow) direction, and be positioned at the opposite side of water intake and water intake, along water (flow) direction both sides, water-inlet cavity center between mirror image be provided with arc shaped surface blade, arc shaped surface blade ecto-entad correspondence is drawn close gradually.
3. the radially split type double suction pump of a kind of core bag integral disassembly, assembly structure according to claim 1, is characterized in that described fixed tray is combined by the positioning ring of two semi-circular shape.
4. the radially split type double suction pump of a kind of core bag integral disassembly, assembly structure according to claim 1, it is characterized in that the screw upper end at pump housing two ends is respectively equipped with hoisting ring, hoisting ring side is preced with the spiral shell of screw and is fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210463404.5A CN102927054B (en) | 2012-11-17 | 2012-11-17 | Core-cladding integral disassembling and assembling type radially-split type double-section pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210463404.5A CN102927054B (en) | 2012-11-17 | 2012-11-17 | Core-cladding integral disassembling and assembling type radially-split type double-section pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102927054A CN102927054A (en) | 2013-02-13 |
| CN102927054B true CN102927054B (en) | 2015-04-08 |
Family
ID=47641949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210463404.5A Active CN102927054B (en) | 2012-11-17 | 2012-11-17 | Core-cladding integral disassembling and assembling type radially-split type double-section pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927054B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468657A (en) * | 2018-04-09 | 2018-08-31 | 捷达消防科技（苏州）股份有限公司 | The fire-fighting pump configuration of used in fire-fighting |
| CN114233686A (en) * | 2022-02-10 | 2022-03-25 | 浙江水泵总厂有限公司 | Water pump cooling structure and cooling system with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563124A (en) * | 1984-02-24 | 1986-01-07 | Figgie International Inc. | Double suction, single stage volute pump |
| CN201351612Y (en) * | 2009-02-10 | 2009-11-25 | 张宝华 | Single-stage double-sucking centrifugal liquid pump |
| CN201546968U (en) * | 2009-10-11 | 2010-08-11 | 浙江飞旋泵业有限公司 | Singe-stage double-suction centrifugal pump |
| CN202048026U (en) * | 2011-05-14 | 2011-11-23 | 锦州重型水泵有限公司 | Energy-saving self-absorption vertical double-suction pump |
| CN202326265U (en) * | 2011-11-13 | 2012-07-11 | 湖南天一奥星泵业有限公司 | Single-stage double-suction middle-opening centrifugal pump |
| CN202946452U (en) * | 2012-11-17 | 2013-05-22 | 山东双轮股份有限公司 | Radially split type double suction pump with core package overall dismounting structure |
-
2012
- 2012-11-17 CN CN201210463404.5A patent/CN102927054B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563124A (en) * | 1984-02-24 | 1986-01-07 | Figgie International Inc. | Double suction, single stage volute pump |
| CN201351612Y (en) * | 2009-02-10 | 2009-11-25 | 张宝华 | Single-stage double-sucking centrifugal liquid pump |
| CN201546968U (en) * | 2009-10-11 | 2010-08-11 | 浙江飞旋泵业有限公司 | Singe-stage double-suction centrifugal pump |
| CN202048026U (en) * | 2011-05-14 | 2011-11-23 | 锦州重型水泵有限公司 | Energy-saving self-absorption vertical double-suction pump |
| CN202326265U (en) * | 2011-11-13 | 2012-07-11 | 湖南天一奥星泵业有限公司 | Single-stage double-suction middle-opening centrifugal pump |
| CN202946452U (en) * | 2012-11-17 | 2013-05-22 | 山东双轮股份有限公司 | Radially split type double suction pump with core package overall dismounting structure |
Non-Patent Citations (1)
| Title |
|---|
| 双吸泵系列产品的开发;关醒凡 商明华 温学通 杨孝培;《水泵技术》;20040531;第28-32页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102927054A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104564707A (en) | Modular efficient maintenance-free bidirectional detachable universal centrifugal pump | |
| CN102927054B (en) | Core-cladding integral disassembling and assembling type radially-split type double-section pump | |
| CN202441611U (en) | Shielded pipe booster pump | |
| CN204851664U (en) | High -efficient non -maintaining two -way removable general purpose centrifugal pump of modularized design | |
| CN202946452U (en) | Radially split type double suction pump with core package overall dismounting structure | |
| CN206309636U (en) | Forced circulation axial-flow pump | |
| CN201627724U (en) | Vertical multi-stage centrifugal pump | |
| CN105422463A (en) | Condensate pump for large thermal power plant | |
| CN202040090U (en) | Water pump | |
| CN204082641U (en) | A kind of cartridge mechanical seal just tear pipeline mounted pump open | |
| CN203161553U (en) | Vertical long-shaft seawater pump with withdrawable core | |
| CN202914368U (en) | Pump body seal ring of axially split pump convenient for disassembling | |
| CN201836090U (en) | Lower support structure of long-shaft pump | |
| CN103062108B (en) | The packing ring of single stage single suction volute pump | |
| CN205446159U (en) | High -efficient double suction centrifugal pump structure | |
| CN219509880U (en) | Pump shell structure | |
| CN211900988U (en) | Cantilever type centrifugal pump | |
| CN205423181U (en) | Vertical oblique flow pump | |
| CN212717191U (en) | Coupling type horizontal installation submersible axial flow pump | |
| CN204532852U (en) | A kind of High Temperature High Pressure Vertical Heat water pump | |
| CN218509799U (en) | Water pump convenient to dismantle | |
| CN202048026U (en) | Energy-saving self-absorption vertical double-suction pump | |
| CN209743250U (en) | Long-shaft deep-well water pump water-raising pipe fixing device | |
| CN103062104A (en) | Sealing device of liquid pump | |
| CN204738976U (en) | High axiality tubing pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jiabin Inventor after: Wu Xinshan Inventor before: Wu Xinshan Inventor before: Wang Jiabin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WU XINSHAN WANG JIABIN TO: WANG JIABIN WU XINSHAN |
|
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jiabin Inventor after: Wu Xinshan Inventor after: Meng Fanyu Inventor before: Wang Jiabin Inventor before: Wu Xinshan |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG JIABIN WU XINSHAN TO: WANG JIABIN WU XINSHAN MENG FANYU |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |