CN105466275A - Controller of waste heat recovery system - Google Patents
Controller of waste heat recovery system Download PDFInfo
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- CN105466275A CN105466275A CN201511034435.9A CN201511034435A CN105466275A CN 105466275 A CN105466275 A CN 105466275A CN 201511034435 A CN201511034435 A CN 201511034435A CN 105466275 A CN105466275 A CN 105466275A
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- module
- processing unit
- central processing
- controller
- temperature signal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
Abstract
The invention provides a controller, which is simple and convenient to operate and capable of performing accurate control, of a waste heat recovery system. The controller comprises a central processing unit, a temperature signal amplifying module, a temperature signal analog input module, a control signal analog output module and a display driver module; the central processing unit is connected with a temperature module through the temperature signal analog input module, and further connected with the control signal analog output module and the display driver module; a temperature signal from a sensor is input into the central processor through the temperature signal amplifying module and the temperature signal analog input module; a control signal from the central processing unit is input into a temperature controller through the control signal analog output module, and a display signal from the central processing unit is input into a display through the display driver module.
Description
Technical field
The present invention relates to a kind of controller of residual neat recovering system.
Background technology
Waste heat belongs to secondary energy sources, and after the primary energy such as coal, oil, combustible gas are used for the technical process such as smelting, heating, big city produces various forms of waste heat.Usually, waste heat discharges with the form of flue gas, and on the one hand because flue gas air draft can cause direct pollution, the discharge of flue gas causes the waste of heat on the other hand.Thus heat recovery is the important means realizing industrial energy saving consumption reduction, in industry extensive uses such as generating, building materials, chemical industry, metallurgy, oil, food, reclaim used heat to greatest extent, free domestic hot-water can be provided, reduce the waste heat discharge amount to air, there is good economy.
In waste heat, boiler exhaust gas is the residual heat resources that potentiality are very large, and high fume temperature both wasted mass energy, causes again serious environmental thermal pollution.Vigorously advocate the overall situation of " energy-saving and emission-reduction " using energy source policy in country under, improve boiler efficiency, minimizing boiler blow-off amount just becomes extremely important.
Current, waste heat is reclaimed by heat exchanger usually, and cold water workflow is for enter heat exchanger from heat exchanger end, and enter economizer after utilizing fume afterheat to heat, in general after heat exchange, the efficiency of flue-gas temperature waste heat recovery is higher.But in actual use, owing to containing ash content, water, sulfide, hydride etc. in flue gas, so flue-gas temperature may be too low.If flue-gas temperature is too low, then heat exchanger heat exchange surface can be made lower than acid dew-point temperature, and make the heavy corrosion of heat exchange metal.And owing to there is ash content in flue gas, for ensureing that heat exchanger can not block up ash, therefore need to ensure the dew-point temperature of heat exchange temperature higher than flue gas steam, the dust stratification making heat exchanger surface is dry ash state, is beneficial to the removing of dust.Thus need to ensure that heat exchange temperature is higher than acid dew point and steam dew point.But also there is not such controller in prior art.
Summary of the invention
The present invention be directed to problems of the prior art to propose, its object is to provide a kind of easy and simple to handle and controller of the residual neat recovering system that can accurately control.
Following technical scheme is adopted for realizing object of the present invention.
The controller of the residual neat recovering system of technical scheme 1, comprise central processing unit, temperature signal amplification module, temperature signal analog input module, control signal analog output module, driver module, described central processing unit is connected with thermal module via temperature signal analog input module, and described central processing unit is connected with described control signal analog output module and described driver module, carry out the temperature signal of sensor via described temperature signal amplification module and described temperature signal analog input module input central processing unit, control signal from described central processing unit inputs to temperature controller via described control signal analog output module, and input to display from the display of described central processing unit via driver module.
The controller of the residual neat recovering system of technical scheme 2, in the controller of the residual neat recovering system of technical scheme 1, the controller of described residual neat recovering system also comprises the Acquisition Circuit State-output module and control circuit State-output module that are connected with described central processing unit, described Acquisition Circuit output module exports the acquisition state to the Acquisition Circuit that temperature gathers, and described control circuit State-output module o controller carries out the state of a control of the control short circuit controlled.
The controller of the residual neat recovering system of technical scheme 3, in the controller of the residual neat recovering system of technical scheme 1 or 2, the controller of described residual neat recovering system also comprises the processor monitoring module be connected with described central processing unit.
Compared with prior art, the present invention has following beneficial effect.
According to the controller of the residual neat recovering system of technical scheme 1, it comprises central processing unit, temperature signal amplification module, temperature signal analog input module, control signal analog output module, driver module, carry out the temperature signal of sensor via temperature signal amplification module and temperature signal analog input module input central processing unit, control signal from central processing unit inputs to temperature controller via control signal analog output module, and inputs to display from the display of central processing unit via driver module.
By the controller of such residual neat recovering system, as long as the temperature signal constantly inputting flue gas and heat exchanger via temperature signal amplification module and temperature signal analog input module to central processing unit just can be processed by central processing unit automatically, control the valve opening of heat exchanger, the temperature difference between guarantee oxygen and heat exchanger within the limits prescribed, and ensures that heat exchange temperature is higher than acid dew point and steam dew point.
And, as long as access the controller of residual neat recovering system of the present invention, and individual parameters is modified, just can stably control by heat exchanger, do not need technical staff's detail programming, decrease the workload of technical staff's field programming debugging, easy and simple to handle, and effectively can control organic efficiency, ensure the successful implementation of waste heat recovery project.
In addition, according to the controller of the residual neat recovering system of technical scheme 2, the controller of residual neat recovering system also comprises the Acquisition Circuit State-output module and control circuit State-output module that are connected with central processing unit, thus the state of output temperature Acquisition Circuit that can be real-time and the state of heat exchanger control circuit, report to the police when breaking down.
In addition, according to the controller of the residual neat recovering system of technical scheme 3, the controller of residual neat recovering system also comprises the processor monitoring module be connected with central processing unit, thus can when temperature acquisition and heat exchanger control endless loop occurs, autoboot central processing unit, ensures the trouble-free operation of central processing unit.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the controller representing residual neat recovering system of the present invention.
Detailed description of the invention
Below, the controller of the residual neat recovering system as an example of the present invention is described based on accompanying drawing.
Fig. 1 is the structured flowchart of the controller representing residual neat recovering system of the present invention.
As shown in Figure 1, the controller of residual neat recovering system of the present invention comprises central processing unit 10, temperature signal amplification module 20, temperature signal analog input module 30, control signal analog output module 40, driver module 50, central processing unit 10 is connected with thermal module 20 via temperature signal analog input module 30, and central processing unit 10 is connected with control signal analog output module 40 and driver module 50.
The temperature signal carrying out sensor inputs central processing unit 10 via temperature signal amplification module 20 and temperature signal analog input module 30, control signal from central processing unit 10 inputs to heat exchanger via control signal analog output module 40, and inputs to display from the display of central processing unit 10 via driver module 50.
Specifically, central processing unit is formed primarily of the clock chip of model to be the single-chip microcomputer of AT89C55WD and model be PCF8563, completes various controlling functions after write-in program.Temperature signal amplification module mainly contains multiple signal amplifier and forms, and for future, the temperature signal of sensor amplifies, so that central processing unit processes.The modulus conversion chip that temperature signal analog input module is TLC2543 primarily of model is formed, and is data signal by the analog-signal transitions from temperature signal amplification module.The analog-digital chip that control signal analog output module is TLV5616 primarily of model is formed, and it changes the digital control model from central processing unit into analog signal, controls heat exchanger.The driving chip that driver module is 74LS245 primarily of model is formed, for driving display.
According to the controller of above-mentioned residual neat recovering system, it comprises central processing unit, temperature signal amplification module, temperature signal analog input module, control signal analog output module, driver module, carry out the temperature signal of sensor via temperature signal amplification module and temperature signal analog input module input central processing unit, control signal from central processing unit inputs to temperature controller via control signal analog output module, and inputs to display from the display of central processing unit via driver module.
By the controller of such residual neat recovering system, as long as the temperature signal constantly inputting flue gas and heat exchanger via temperature signal amplification module and temperature signal analog input module to central processing unit just can be processed by central processing unit automatically, control the valve opening of heat exchanger, the temperature difference between guarantee oxygen and heat exchanger within the limits prescribed, and ensures that heat exchange temperature is higher than acid dew point and steam dew point.
And, as long as access the controller of residual neat recovering system of the present invention, and individual parameters is modified, just can stably control by heat exchanger, do not need technical staff's detail programming, decrease the workload of technical staff's field programming debugging, easy and simple to handle, and effectively can control organic efficiency, ensure the successful implementation of waste heat recovery project.
In addition, the controller of residual neat recovering system can also comprise the Acquisition Circuit State-output module 60 and control circuit State-output module 70 that are connected with central processing unit 10, Acquisition Circuit output module exports the acquisition state to the Acquisition Circuit that temperature gathers, and control circuit State-output module o controller carries out the state of a control of the control short circuit controlled.Thus the state of output temperature Acquisition Circuit that can be real-time and the state of heat exchanger control circuit, report to the police when breaking down.
In addition; the controller of residual neat recovering system can also comprise the processor monitoring module 80 be connected with central processing unit 10; such as; the SCM system monitoring chip that processor monitoring module is MAX691A primarily of model is formed; realize the functions such as reset, data storage write-protect, backup battery switching, power monitoring; thus can when temperature acquisition and heat exchanger control endless loop occurs, autoboot central processing unit, ensures the trouble-free operation of central processing unit.
In addition, the controller of residual neat recovering system of the present invention, can be formed by above-mentioned various textural associations, can play above-mentioned effect equally.
Above the controller of the residual neat recovering system of the preferred embodiment of the present invention is illustrated, but the present invention is not limited to above-mentioned concrete embodiment, only otherwise depart from the scope of claim, can various distortion or change be carried out.Present invention resides in the various distortion in the scope of claim and change.
Claims (3)
1. a controller for residual neat recovering system, is characterized in that,
Comprise central processing unit, temperature signal amplification module, temperature signal analog input module, control signal analog output module, driver module, described central processing unit is connected with thermal module via temperature signal analog input module, and described central processing unit is connected with described control signal analog output module and described driver module
Carry out the temperature signal of sensor via described temperature signal amplification module and described temperature signal analog input module input central processing unit, control signal from described central processing unit inputs to heat exchanger via described control signal analog output module, and inputs to display from the display of described central processing unit via driver module.
2. the controller of residual neat recovering system according to claim 1, it is characterized in that, the controller of described residual neat recovering system also comprises the Acquisition Circuit State-output module and control circuit State-output module that are connected with described central processing unit, described Acquisition Circuit output module exports the acquisition state to the Acquisition Circuit that temperature gathers, and described control circuit State-output module o controller carries out the state of a control of the control short circuit controlled.
3. the controller of residual neat recovering system according to claim 1 and 2, is characterized in that, the controller of described residual neat recovering system also comprises the processor monitoring module be connected with described central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511034435.9A CN105466275A (en) | 2015-12-31 | 2015-12-31 | Controller of waste heat recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034435.9A CN105466275A (en) | 2015-12-31 | 2015-12-31 | Controller of waste heat recovery system |
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| CN105466275A true CN105466275A (en) | 2016-04-06 |
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Citations (6)
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| WO2002090913A1 (en) * | 2001-05-03 | 2002-11-14 | Emerson Retail Services Inc. | System for remote refrigeration monitoring and diagnostics |
| CN201812194U (en) * | 2010-09-14 | 2011-04-27 | 新会双水发电(B厂)有限公司 | Automatic control system of refrigeration station for recovering residual heat of flue gas |
| CN202995365U (en) * | 2012-09-29 | 2013-06-12 | 扬州市兴源节能科技有限公司 | Intelligent controller of waste heat recovery device |
| US8851153B2 (en) * | 2011-07-27 | 2014-10-07 | Hyundai Motor Company | System and method for managing waste heat of electric vehicle |
| CN104315916A (en) * | 2014-10-23 | 2015-01-28 | 机械工业第六设计研究院有限公司 | Electronic control system of waste heat recovery |
| CN205373504U (en) * | 2015-12-31 | 2016-07-06 | 标能和信能源环保技术（天津）有限公司 | Controlling means of waste heat recovery system |
-
2015
- 2015-12-31 CN CN201511034435.9A patent/CN105466275A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090913A1 (en) * | 2001-05-03 | 2002-11-14 | Emerson Retail Services Inc. | System for remote refrigeration monitoring and diagnostics |
| CN201812194U (en) * | 2010-09-14 | 2011-04-27 | 新会双水发电(B厂)有限公司 | Automatic control system of refrigeration station for recovering residual heat of flue gas |
| US8851153B2 (en) * | 2011-07-27 | 2014-10-07 | Hyundai Motor Company | System and method for managing waste heat of electric vehicle |
| CN202995365U (en) * | 2012-09-29 | 2013-06-12 | 扬州市兴源节能科技有限公司 | Intelligent controller of waste heat recovery device |
| CN104315916A (en) * | 2014-10-23 | 2015-01-28 | 机械工业第六设计研究院有限公司 | Electronic control system of waste heat recovery |
| CN205373504U (en) * | 2015-12-31 | 2016-07-06 | 标能和信能源环保技术（天津）有限公司 | Controlling means of waste heat recovery system |
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Application publication date: 20160406 |
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