CN103883505A - Air compressor waste heat recycling control system based on C8051 microprocessor - Google Patents
Air compressor waste heat recycling control system based on C8051 microprocessor Download PDFInfo
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- CN103883505A CN103883505A CN201410022340.4A CN201410022340A CN103883505A CN 103883505 A CN103883505 A CN 103883505A CN 201410022340 A CN201410022340 A CN 201410022340A CN 103883505 A CN103883505 A CN 103883505A
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Abstract
The invention discloses an air compressor waste heat recycling control system based on a C8051 microprocessor. The air compressor waste heat recycling control system comprises a circulating water tank, a heat exchanger, a three-way proportional valve and temperature sensors. The circulating water tank is provided with a water outlet, a water inlet, a hot water output opening and water adding opening. The heat exchanger is provided with an oil return pipe and an oil outlet pipe which are connected to an air compressor and used for recycling the heat generated by the air compressor. The heat exchanger is further provided with a water outlet pipe and a water inlet pipe which are connected to the water inlet and the water outlet of the circulating water tank and used for heating the water in the circulating water tank. The three-way proportional valve is provided with two outlets and one inlet, wherein the inlet is connected to the water outlet of the circulating water tank through a circulating pump, one outlet is connected with the water inlet pipe inlet of the heat exchanger, and the other outlet is connected to the circulating water tank. The temperature sensors are respectively disposed in the oil outlet pipe, the oil return pipe, the water outlet pipe, the water inlet pipe and the circulating water tank. The air compressor waste heat recycling control system has the advantages that the C8051 microprocessor is used as a core processor for waste heat recycling control, integral control is achieved, a control module is integrated with a liquid crystal display module and a keyboard module, and the system is compact in structure, low in cost and good in reliability.
Description
Technical field
The present invention relates to a kind of residual heat of air compressor recovery control system, more specifically, it relates to a kind of residual heat of air compressor recovery control system based on C8051 microprocessor.
Background technique
Pressurized air is most widely used dynamic origin in industrial field.Because it has the plurality of advantages such as safe, nuisanceless, adjusting function is good, conveying is convenient, it is applied in modern industry field more and more extensive.At present, pressurized air is generally produced by air compressor (abbreviation air compressor).But can produce a large amount of heat of compression when compressor operation, the energy of heat of compression consumption accounts for the more than 85% of unit operation power, this part energy is discharged in the middle of atmosphere by the air-cooled or constituent of unit conventionally, causes the waste of energy.It is under the prerequisite that does not change the original working state of air compressor, rationally to utilize residual heat of air compressor that residual heat of air compressor utilizes technology, the deep fat of air compressor is cooled down rapidly through cold and warm exchanger by pump handle cooling water, this part waste heat is converted into hot water through heat reclaim unit, for life and there is a use such as production technology needing, can be in optimizing the effect of compressor oil cooling without any need for operating cost thereby reach, realize the recovery to residual heat of air compressor, reach energy-conservation object.
At present, in the heat recovery of air compressor, all adopt PLC as core processor, obtain the analog values such as temperature transducer by PLC, and carry out the corresponding output of controlling.It is higher that this mode exists system price, the shortcoming that Economy is poor.In existing residual heat of air compressor reclaims, the parameter input of system and state show the structure of employing touch screen,, and the controlled quentity controlled variable of PLC are shown in real time to PLC write parameters by touch screen.Because touch screen and PLC adopt separate type, therefore which exists that cost is high, system exists risk in stability and reliability.During existing residual heat of air compressor reclaims, the injection of cyclic water tank water, mainly by the switch of control valve, is controlled the input of current and closed.Which belongs to extensive style control mode, can not utilize efficiently residual heat of air compressor.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of rational in infrastructure, cost is low, good reliability, the residual heat of air compressor recovery control system based on C8051 microprocessor that efficiency is high.
This residual heat of air compressor recovery control system based on C8051 microprocessor, comprising:
Cyclic water tank, is provided with water outlet, water intake, hot water output port and water supplement port;
Heat exchanger, is provided with return tube and oil outlet tube to the heat producing to reclaim air compressor used for air compressor; Also be provided with outlet pipe and intake pipe to the water intake of cyclic water tank and water outlet in order to the water in Heating Cyclic water tank;
Threeway Proportional valve, is provided with an entrance of two outlets; Entrance connects the water outlet of cyclic water tank by recycle pump; An outlet is connected with the intake pipe entrance of heat exchanger; Another outlet takes back cyclic water tank;
Temperature transducer, is located at respectively in oil outlet tube, return tube, outlet pipe, intake pipe and cyclic water tank;
Heat recovery controller, is connected with threeway Proportional valve, temperature transducer; It receives the temperature signal of temperature transducer, obtain the fuel-displaced and returning-oil temperature of air compressor, and the water inlet of heat exchanger and water-exit temperature, and according to gathered air compressor returning-oil temperature, based on pid control algorithm, output is for the analog voltage of proportional valve control, the aperture of controlling threeway Proportional valve, to control the water flow that enters heat exchanger, makes the water of certain flow and the High-temperature cooling oil of air compressor carry out exchange heat, make returning-oil temperature remain on setting value, water is heated simultaneously.
As preferably: described heat recovery controller, comprises C8051 one-chip computer module, power module, analog input module, analog output module, digital quantity input module, digital output module, LCD and Keysheet module.
As preferably: be also provided with liquid level sensor in described cyclic water tank, the liquid level signal of described heat recovery controller receiving liquid level sensor; In cyclic water tank liquid level, during lower than setting value, described heat recovery controller will be opened moisturizing solenoid valve, to automatic water supplement in cyclic water tank.
As preferably: described recycle pump is two, only enables one when work, in the time that heat recovery controller detects the recycle pump fault of enabling, is switched to another recycle pump and works on.
As preferably: the hot water output port of described cyclic water tank is connected with the external hot-water supply of water transport pump.
The invention has the beneficial effects as follows: in control system proposed by the invention, adopt threeway Proportional valve as water flow control valve door, adopt the mode of closed loop PID control to regulate by heat recovery controller, can carry out to the aperture of water flow control valve door from 0% to 100% step-less adjustment, reach the meticulous adjusting to water flow, thereby to the accurate control of air compressor returning-oil temperature, final control air compressor returning-oil temperature precision can reach ± 2%, improve the heat recovery rate of air compressor, and optimized the cooling effect of air compressor.Have from error correction, the state that controller can Real-time Obtaining circulation water transport pump, in the time that circulation water transport pump breaks down, system will be enabled another reserve pump, thereby ensure the reliable and stable operation of system.In the present invention, adopting heat recovery control based on C8051 microprocessor as core processor, is integral type control, and control module and LCD MODULE, Keysheet module are integrated, and has the advantages such as compact structure, cost are low, good reliability.
Brief description of the drawings
Fig. 1 is system architecture schematic diagram of the present invention;
Fig. 2 is heat recovery controller architecture block diagram;
Fig. 3～Figure 10 is circuit theory diagrams of the present invention.
embodiment
Below in conjunction with drawings and Examples, the present invention is described further.Although the present invention is described in connection with preferred embodiment, should know, do not represent to limit the invention in described embodiment.On the contrary, the present invention is by alternative, modified model and the equivalent contained in the scope of the present invention that can be included in attached claims restriction.
A kind of residual heat of air compressor recovery control system based on C8051 microprocessor is taking the heat recovery controller based on C8051 microprocessor as the system core, in conjunction with heat exchanger, threeway Proportional valve, recycle pump 1, recycle pump 2, cyclic water tank, moisturizing solenoid valve, temperature transducer, liquid level sensor etc., can realize the High-temperature cooling oil of air compressor and the water of cyclic water tank are carried out to exchange heat.Heat recovery controller based on C8051 microprocessor obtains the fuel-displaced and returning-oil temperature of air compressor by analog input interface, and the water inlet of heat exchanger and water-exit temperature, and according to gathered air compressor returning-oil temperature, based on pid control algorithm, output is for the analog voltage of threeway proportional valve control, control the aperture of threeway Proportional valve, with the water flow of control inputs heat exchanger, make the water of certain flow and the High-temperature cooling oil of air compressor carry out exchange heat, make returning-oil temperature remain on setting value, water is heated simultaneously.Reach in effectively reducing air compressor cold oil temperature, optimizing air compressor cooling effect, the water of cyclic water tank is heated, for bathing purposes, thereby realize the recovery to residual heat of air compressor, reach energy-conservation object.
The above-mentioned heat recovery controller based on C8051 microprocessor, it is characterized in that, described heat recovery controller is made up of C8051 one-chip computer module, power module, analog input module, analog output module, digital quantity input module, digital output module, LCD and Keysheet module etc.Wherein, C8051 one-chip computer module is the core processing module of system, can realize the collection to following analog amount: comprise air compressor oil outlet temperature, air compressor returning-oil temperature, heat exchanger entering water temp, heat exchanger water-exit temperature, cyclic water tank water temperature and cyclic water tank liquid level; Can realize the collection to following digital quantity: compressor operation signal, circulating water pump 1 run signal, circulating water pump 2 run signal, recycle pump 1 trouble signal, recycle pump 2 trouble signals, whether start for perception air compressor, whether whether recycle pump start and break down; Can realize the analog signal output of proportional valve control voltage, for controlling the aperture of threeway Proportional valve; Also can be achieved as follows the output of digital quantity signal: recycle pump 1 actuating signal, recycle pump 2 actuating signals, water-feeding valve actuating signal, warning light danger signal, warning light green, warning light yellow signal, be used for starting pump and valve, and the state signal of output system.
The LCD of above-mentioned a kind of heat recovery controller based on C8051 microprocessor and Keysheet module and controller weld together, and are integrally formed formula heat recovery controller.Compared with the framework that adds touch screen with PLC, this integral type heat recovery controller has that level of integrated system is high, compact structure, high reliability.
Parameter input and system mode that above-mentioned LCD and Keysheet module can be used for control system show.Parameter input can be inputted by button, and the running state of system can show in real time by liquid crystal screen.
Claims (5)
1. the residual heat of air compressor recovery control system based on C8051 microprocessor, is characterized in that: comprising:
Cyclic water tank, is provided with water outlet, water intake, hot water output port and water supplement port;
Heat exchanger, is provided with return tube and oil outlet tube to the heat producing to reclaim air compressor used for air compressor; Also be provided with outlet pipe and intake pipe to the water intake of cyclic water tank and water outlet in order to the water in Heating Cyclic water tank;
Threeway Proportional valve, is provided with an entrance of two outlets; Entrance connects the water outlet of cyclic water tank by recycle pump; An outlet is connected with the intake pipe entrance of heat exchanger; Another outlet takes back cyclic water tank;
Temperature transducer, is located at respectively in oil outlet tube, return tube, outlet pipe, intake pipe and cyclic water tank;
Heat recovery controller, is connected with threeway Proportional valve, temperature transducer; It receives the temperature signal of temperature transducer, obtain the fuel-displaced and returning-oil temperature of air compressor, and the water inlet of heat exchanger and water-exit temperature, and according to gathered air compressor returning-oil temperature, based on pid control algorithm, output is for the analog voltage of proportional valve control, the aperture of controlling threeway Proportional valve, to control the water flow that enters heat exchanger, makes the water of certain flow and the High-temperature cooling oil of air compressor carry out exchange heat, make returning-oil temperature remain on setting value, water is heated simultaneously.
2. the residual heat of air compressor recovery control system based on C8051 microprocessor according to claim 1, it is characterized in that: described heat recovery controller, comprises C8051 one-chip computer module, power module, analog input module, analog output module, digital quantity input module, digital output module, LCD and Keysheet module.
3. the residual heat of air compressor recovery control system based on C8051 microprocessor according to claim 1, is characterized in that: in described cyclic water tank, be also provided with liquid level sensor, the liquid level signal of heat recovery controller receiving liquid level sensor; In cyclic water tank liquid level, during lower than setting value, heat recovery controller will be opened moisturizing solenoid valve, to automatic water supplement in cyclic water tank.
4. the residual heat of air compressor recovery control system based on C8051 microprocessor according to claim 1, it is characterized in that: described recycle pump is two, when work, only enable one, in the time that heat recovery controller detects the recycle pump fault of enabling, be switched to another recycle pump and work on.
5. the residual heat of air compressor recovery control system based on C8051 microprocessor according to claim 1, is characterized in that: the hot water output port of described cyclic water tank is connected with the external hot-water supply of water transport pump.
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| CN201410022340.4A CN103883505A (en) | 2014-01-17 | 2014-01-17 | Air compressor waste heat recycling control system based on C8051 microprocessor |
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| CN201410022340.4A CN103883505A (en) | 2014-01-17 | 2014-01-17 | Air compressor waste heat recycling control system based on C8051 microprocessor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222213A (en) * | 2015-09-25 | 2016-01-06 | 中国联合工程公司 | Take residual heat of air compressor as closed scheme of hot-water supply and the operation method of thermal source |
| CN106958520A (en) * | 2017-04-12 | 2017-07-18 | 中机意园工程科技股份有限公司 | A kind of residual heat of air compressor reclaims long distance control system |
| CN107762806A (en) * | 2017-11-27 | 2018-03-06 | 安徽寅时压缩机制造有限公司 | A kind of air compressor thermal energy recovery device |
| CN109883059A (en) * | 2019-03-07 | 2019-06-14 | 北京华体体育场馆施工有限责任公司 | A kind of natural lawn heating control system |
| EP3514393A3 (en) * | 2018-01-23 | 2019-07-31 | Airflux | Device for recovering thermal energy |
| CN112443884A (en) * | 2020-11-27 | 2021-03-05 | 浙江先博节能科技有限公司 | Central heating intelligent management system based on cloud platform |
| CN113323841A (en) * | 2021-07-16 | 2021-08-31 | 广东鑫钻节能科技股份有限公司 | Air compressor waste heat recovery system and method based on sectional liquid level control |
| CN113464401A (en) * | 2021-07-05 | 2021-10-01 | 中国电建集团河北省电力勘测设计研究院有限公司 | Hot air circulation system of air-cooled air compressor and control method |
| CN114326870A (en) * | 2021-11-10 | 2022-04-12 | 江苏华洋新思路能源装备股份有限公司 | Adjustable hot water flow testing arrangement |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222213A (en) * | 2015-09-25 | 2016-01-06 | 中国联合工程公司 | Take residual heat of air compressor as closed scheme of hot-water supply and the operation method of thermal source |
| CN105222213B (en) * | 2015-09-25 | 2018-04-20 | 中国联合工程有限公司 | Closed scheme of hot-water supply and operation method using residual heat of air compressor as heat source |
| CN106958520A (en) * | 2017-04-12 | 2017-07-18 | 中机意园工程科技股份有限公司 | A kind of residual heat of air compressor reclaims long distance control system |
| CN107762806A (en) * | 2017-11-27 | 2018-03-06 | 安徽寅时压缩机制造有限公司 | A kind of air compressor thermal energy recovery device |
| EP3514393A3 (en) * | 2018-01-23 | 2019-07-31 | Airflux | Device for recovering thermal energy |
| CN109883059A (en) * | 2019-03-07 | 2019-06-14 | 北京华体体育场馆施工有限责任公司 | A kind of natural lawn heating control system |
| CN112443884A (en) * | 2020-11-27 | 2021-03-05 | 浙江先博节能科技有限公司 | Central heating intelligent management system based on cloud platform |
| CN113464401A (en) * | 2021-07-05 | 2021-10-01 | 中国电建集团河北省电力勘测设计研究院有限公司 | Hot air circulation system of air-cooled air compressor and control method |
| CN113464401B (en) * | 2021-07-05 | 2022-10-21 | 中国电建集团河北省电力勘测设计研究院有限公司 | Hot air circulation system of air-cooled air compressor and control method |
| CN113323841A (en) * | 2021-07-16 | 2021-08-31 | 广东鑫钻节能科技股份有限公司 | Air compressor waste heat recovery system and method based on sectional liquid level control |
| CN114326870A (en) * | 2021-11-10 | 2022-04-12 | 江苏华洋新思路能源装备股份有限公司 | Adjustable hot water flow testing arrangement |
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Application publication date: 20140625 |