CN203052982U - Heat-pump water heating system for recovering industrial residual heat - Google Patents
Heat-pump water heating system for recovering industrial residual heat Download PDFInfo
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- CN203052982U CN203052982U CN 201220640423 CN201220640423U CN203052982U CN 203052982 U CN203052982 U CN 203052982U CN 201220640423 CN201220640423 CN 201220640423 CN 201220640423 U CN201220640423 U CN 201220640423U CN 203052982 U CN203052982 U CN 203052982U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The utility model provides a heat-pump water heating system for recovering industrial residual heat. The heat-pump water heating system comprises an electric three-way regulating valve, a heat exchanger, an evaporator, a refrigerating compressor, a condenser, a hot water storage tank, a water pump, a heating circulating pump, a pressure sensor and a controller, wherein the pressure sensor is arranged in a coolant channel of the evaporator; the electric three-way regulating valve is communicated with industrial equipment, the heat exchanger and the evaporator, and the heat exchanger is also communicated with external industrial equipment, an external running water pipe and a hot water storage pool; the evaporator is also communicated with the condenser and the refrigerating compressor; the refrigerating compressor is also communicated with the condenser, the condenser is also communicated with the hot water storage tank, and the hot water storage pool is communicated with an external hot water user; and an output end of the pressure sensor is connected with an input end of the controller, and an output end of the controller is connected with an electric control end of the electric three-way regulating valve. The heat-pump water heating system can treat cooling circulating water of which the temperature is higher than 30 DEG C, reduce gas pollution and save energy, and can be widely used in the field of industrial residual heat recovery.
Description
Technical field
The utility model relates to heat supply process, particularly relates to a kind of industrial afterheat recovery heat pump hot-water system.
Background technology
At present, extensively there is the industrial equipment that produces a large amount of industrial exhaust heats in the industrial processes, such as, large-scale air compressor, tandem mill, conticaster and other kilns etc.The industrial exhaust heat that these industrial equipments produce enters behind the cooling circulating water by cooling tower discharged to atmosphere.In the practical application, the cooling circulating water that carries industrial exhaust heat is that flow is not less than 80m
3/ h, temperature are 30～50 ℃, contain the low-quality thermal source of impurity, so can not directly be utilized.At present, because water source heat pump technology belongs to the low boiling working fluid Vapor Compression Refrigeration Cycle technology that boiling point is lower than 30 ℃, and evaporating pressure there is strict requirement, temperature is higher than 30 ℃ the cool cycles water purification that carries industrial exhaust heat so water source heat pump technology can't directly apply to.
This shows, can't be higher than 30 ℃ the cooling circulating water that carries industrial exhaust heat to temperature in prior art and carry out purified treatment, the discharge of industrial exhaust heat is polluted atmospheric environment, and waste energy.
Summary of the invention
In view of this, main purpose of the present utility model is to provide a kind of temperature is higher than the industrial afterheat recovery heat pump hot-water system that atmosphere pollution and energy savings were handled, reduced to 30 ℃ the cooling circulating water that carries industrial exhaust heat.
In order to achieve the above object, the technical scheme that the utility model proposes is:
A kind of heat pump hot-water system of industrial afterheat recovery, comprise: be used under the effect of the flow-dividing control signal that comes self-controller, the cooling circulating water that carries industrial exhaust heat that outside industrial equipment is sent is divided into warm-up cycle water and heat cycles water in proportion, and warm-up cycle water is sent to heat exchanger, heat cycles water is sent to the electric three passes control valve of evaporimeter; Be used for the pre-hot tap-water that obtains being sent to the heat exchanger of hot water storage tank to after carrying out heat exchange from the warm-up cycle water of electric three passes control valve and outside running water; Be used for the gaseous refrigerant that obtains being sent to the evaporimeter of refrigeration compressor to after carrying out heat exchange from the heat cycles water of electric three passes control valve and liquid refrigerant from condenser; After the gaseous refrigerant that comes flash-pot is compressed, the compressed refrigerant that obtains is sent to the refrigeration compressor of condenser; Be used for carrying out heat exchange from the compressed refrigerant of refrigeration compressor and water from hot water storage tank, and the hot water that obtains be sent to the condenser of hot water storage tank; Be used for storage from the hot water of condenser, come the pre-hot tap-water of automatic heat-exchanger and water from outside hot water user, and provide the hot water storage tank that uses hot water for outside hot water user; The cooling circulating water that is used to outside industrial equipment will carry industrial exhaust heat is delivered to the water pump that the electric three passes control valve provides power; Be used to hot water storage tank that the water of self storing is delivered to the heat cycles pump that condenser provides power; The real-time evaporating pressure that is used for recording is sent to the pressure sensor of controller; Be used for the real-time evaporating pressure of pressure sensor transmission and the standard evaporating pressure of self storage are compared, and the flow-dividing control signal that obtains sent to the controller of electric three passes control valve; Wherein, pressure sensor is installed in the evaporator refrigerant passage;
Path between the import of electric three passes control valve and the outlet of outside industrial equipment is provided with water pump, first outlet of electric three passes control valve is communicated with the import of heat exchanger primary side, the outlet of heat exchanger primary side is communicated with outside industrial equipment import, the import of heat exchanger secondary side is communicated with outside running water pipe, and the outlet of heat exchanger secondary side is communicated with the thermal storage tank; Second outlet of electric three passes control valve is communicated with the import of evaporimeter primary side, the outlet of evaporimeter primary side is communicated with outside industrial equipment import, is communicated with by expansion valve between the outlet of the import of evaporimeter secondary side and condenser primary side, the evaporimeter secondary side exports and is communicated with the refrigeration compressor import; Refrigeration compressor outlet is communicated with the import of condenser primary side, the import of condenser secondary side be communicated with by the heat cycles pump between hot water storage tank first exports, the condenser secondary side exports and is communicated with thermal storage tank's first import; Thermal storage tank's second import is communicated with outside hot water subscriber's outlet, and thermal storage tank's second outlet is communicated with outside hot water user import; The pressure sensor output connects the controller input, and controller output end connects the automatically controlled end of electric three passes control valve.
In sum, in the heat pump hot-water system of industrial afterheat recovery described in the utility model, the electric three passes control valve is divided into warm-up cycle water and heat cycles water in proportion with the cooling circulating water that carries industrial exhaust heat that outside industrial equipment sends.Waste heat recirculated water and outside running water are realized heat exchange in heat exchanger after, the pre-hot tap-water that obtains enters hot water storage tank; Further, by the heat exchange between evaporimeter, refrigeration compressor, the condenser, realized heat exchange between heat cycles water and the water from hot water storage tank, the temperature that hot water storage tank is provided for outside hot water user be not less than 60 ℃, for bathroom, laundry, kitchen or heat supply in winter water.In the practical application, because the heat cycles water that enters evaporimeter can only be to carry in the part of cooling circulating water of industrial exhaust heat, and the heat cycles water water yield is dynamic change; Adopt heat exchanger that outside running water is carried out preheating, can reclaim the waste heat that industrial equipment produces to greatest extent, so the utility model can energy savings and reduced atmosphere pollution.In the practical application, the cooling circulating water that carries industrial exhaust heat is can't be as the low-quality water of domestic water, be passed to mode from the running water of outside by the heat that will this low-quality water carries, to obtain the use hot water of the running water of heat as outside hot water user, thereby low-quality thermal source is converted into high-quality use hot water.
Description of drawings
Fig. 1 is that the integral body of the heat pump hot-water system of industrial afterheat recovery described in the utility model is formed structural representation.
Fig. 2 is the composition structural representation of controller described in the utility model.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Fig. 1 is that the integral body of the heat pump hot-water system of industrial afterheat recovery described in the utility model is formed structural representation.As shown in Figure 1, the heat pump hot-water system of industrial afterheat recovery described in the utility model comprises: be used under the effect of the flow-dividing control signal that comes self-controller, the cooling circulating water that carries industrial exhaust heat that outside industrial equipment is sent is divided into warm-up cycle water and heat cycles water in proportion, and warm-up cycle water is sent to heat exchanger 2, heat cycles water is sent to the electric three passes control valve 1 of evaporimeter 3; Be used for the pre-hot tap-water that obtains being sent to the heat exchanger 2 of hot water storage tank 6 to after carrying out heat exchange from the warm-up cycle water of electric three passes control valve 1 and outside running water; Be used for the gaseous refrigerant that obtains being sent to the evaporimeter 3 of refrigeration compressor 4 to after carrying out heat exchange from the heat cycles water of electric three passes control valve 1 and liquid refrigerant from condenser 5; After the gaseous refrigerant that comes flash-pot 3 is compressed, the compressed refrigerant that obtains is sent to the refrigeration compressor 4 of condenser 5; Be used for carrying out heat exchange from the compressed refrigerant of refrigeration compressor 4 and water from hot water storage tank 6, and the hot water that obtains be sent to the condenser 5 of hot water storage tank 6; Be used for storage from the hot water of condenser 5, come the pre-hot tap-water of automatic heat-exchanger 2 and water from outside hot water user, and provide the hot water storage tank 6 that uses hot water for outside hot water user; The cooling circulating water that is used to outside industrial equipment will carry industrial exhaust heat is delivered to the water pump 7 that electric three passes control valve 1 provides power; Be used to hot water storage tank 6 that the water of self storing is delivered to the heat cycles pump 8 that condenser 5 provides power; The real-time evaporating pressure that is used for recording is sent to the pressure sensor 9 of controller 10; Be used for the real-time evaporating pressure of pressure sensor 9 transmissions and the standard evaporating pressure of self storage are compared, and the flow-dividing control signal that obtains sent to the controller 10 of electric three passes control valve 1; Wherein, pressure sensor 9 is installed in evaporimeter 3 coolant channels;
Path between 1 import of electric three passes control valve and the outlet of outside industrial equipment is provided with water pump 7,1 first outlet of electric three passes control valve is communicated with heat exchanger 2 primary side imports, the outlet of heat exchanger 2 primary sides is communicated with outside industrial equipment import, heat exchanger 2 secondary side imports are communicated with outside running water pipe, and the outlet of heat exchanger 2 secondary sides is communicated with hot water storage tank 6 running water inlets; 1 second outlet of electric three passes control valve is communicated with evaporimeter 3 primary side imports, the outlet of evaporimeter 3 primary sides is communicated with outside industrial equipment import, be communicated with by expansion valve 11 between the outlet of evaporimeter 3 secondary side imports and condenser 5 primary sides, evaporimeter 3 secondary sides export and are communicated with refrigeration compressor 4 imports; Refrigeration compressor 4 outlet is communicated with condenser 5 primary side imports, condenser 5 secondary side imports be communicated with by heat cycles pump 8 between hot water storage tank 6 first exports, condenser 5 secondary sides export and are communicated with hot water storage tank 6 first imports; Hot water storage tank 6 second imports are communicated with outside hot water subscriber's outlet, and hot water storage tank 6 second outlets are communicated with outside hot water user import; Pressure sensor 9 outputs connect controller 10 inputs, and controller 10 outputs connect electric three passes control valve 1 automatically controlled end.
In a word, the electric three passes control valve is divided into warm-up cycle water and heat cycles water in proportion with the cooling circulating water that carries industrial exhaust heat that outside industrial equipment sends.Waste heat recirculated water and outside running water are realized heat exchange in heat exchanger after, the pre-hot tap-water that obtains enters hot water storage tank; Further, by the heat exchange between evaporimeter, refrigeration compressor, the condenser, realized heat exchange between heat cycles water and the water from hot water storage tank, the temperature that hot water storage tank is provided for outside hot water user is not less than 60 ℃ use hot water.Here, use hot water to can be used as bathroom, laundry or kitchen water, also can be used as the heat medium water of heat supply in winter.In the practical application, because the heat cycles water that enters evaporimeter can only be to carry in the part of cooling circulating water of industrial exhaust heat, and the heat cycles water water yield is dynamic change; Adopt heat exchanger that outside running water is carried out preheating, can reclaim the waste heat that industrial equipment produces to greatest extent, so the utility model can energy savings and reduced atmosphere pollution.In the practical application, the cooling circulating water that carries industrial exhaust heat is can't be as the low-quality water of domestic water, be passed to mode from the running water of outside by the heat that will this low-quality water carries, to obtain the use hot water of the running water of heat as outside hot water user, thereby low-quality thermal source is converted into high-quality use hot water.
In the utility model, the described temperature that carries the cooling circulating water of industrial exhaust heat is 30 ℃～50 ℃.In evaporimeter, after liquid refrigerant and the heat cycles hydrothermal exchange, heat cycles water release heat, liquid refrigerant absorbs the heat gasification for equality of temperature, with the gaseous refrigerant of pressing; By the control heat cycles water water yield, make the gaseous refrigerant temperature always be lower than the heat cycles coolant-temperature gage after the release heat; Like this, the temperature that enters the heat cycles water of evaporimeter can surpass 30 ℃, even can reach 50 ℃.
In the utility model, the compressed refrigerant temperature of the gaseous state after the compression of process refrigeration compressor is about 90 ℃.In condenser, compressed refrigerant with carry out heat exchange from the water of hot water storage tank after, liquefaction is the liquid refrigerant of uniform pressure after the compressed refrigerant release heat.When liquid refrigerant entered the evaporimeter secondary side from the condenser primary side by expansion valve, the temperature of liquid refrigerant further was reduced to about 7 ℃.
Fig. 2 is the composition structural representation of controller described in the utility model.As shown in Figure 2, controller 10 described in the utility model comprises memory 101, comparator 102; Wherein,
Memory 101 is used for the standard evaporating pressure that storage sets in advance.
Comparator 102, be used for the real-time evaporating pressure that described pressure sensor 9 is sent, the standard evaporating pressure that reads from memory 101 compares: when real-time evaporating pressure overgauge evaporating pressure, send the flow-dividing control signal that reduces heat cycles water to described electric three passes control valve 1; When real-time evaporating pressure during less than the standard evaporating pressure, send the flow-dividing control signal that increases heat cycles water to described electric three passes control valve 1.
Described electric three passes control valve 1 is used for reducing the heat cycles water water yield when receiving the flow-dividing control signal of the minimizing heat cycles water that comparator 102 sends, and increases the warm-up cycle water water yield simultaneously; When receiving the flow-dividing control signal of the increase heat cycles water that comparator 102 sends, increase the heat cycles water water yield, reduce the warm-up cycle water water yield simultaneously.
For the stable operation of the heat pump hot-water system that guarantees industrial afterheat recovery described in the utility model, must control the real-time evaporating pressure of evaporimeter 3.By the control to the heat cycles water water yield that enters evaporimeter 3, realize the control to real-time evaporating pressure.In the practical application, in the distribution to the electric three passes control valve 1 pair of warm-up cycle water water yield and the heat cycles water water yield, the heat cycles water water yield that preferential assurance enters evaporimeter 3.
In sum, more than be preferred embodiment of the present utility model only, be not for limiting protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. the heat pump hot-water system of an industrial afterheat recovery, it is characterized in that, described heat pump hot-water system comprises: be used under the effect of the flow-dividing control signal that comes self-controller, the cooling circulating water that carries industrial exhaust heat that outside industrial equipment is sent is divided into warm-up cycle water and heat cycles water in proportion, and warm-up cycle water is sent to heat exchanger, heat cycles water is sent to the electric three passes control valve of evaporimeter; Be used for the pre-hot tap-water that obtains being sent to the heat exchanger of hot water storage tank to after carrying out heat exchange from the warm-up cycle water of electric three passes control valve and outside running water; Be used for the gaseous refrigerant that obtains being sent to the evaporimeter of refrigeration compressor to after carrying out heat exchange from the heat cycles water of electric three passes control valve and liquid refrigerant from condenser; After the gaseous refrigerant that comes flash-pot is compressed, the compressed refrigerant that obtains is sent to the refrigeration compressor of condenser; Be used for carrying out heat exchange from the compressed refrigerant of refrigeration compressor and water from hot water storage tank, and the hot water that obtains be sent to the condenser of hot water storage tank; Be used for storage from the hot water of condenser, come the pre-hot tap-water of automatic heat-exchanger and water from outside hot water user, and provide the hot water storage tank that uses hot water for outside hot water user; The cooling circulating water that is used to outside industrial equipment will carry industrial exhaust heat is delivered to the water pump that the electric three passes control valve provides power; Be used to hot water storage tank that the water of self storing is delivered to the heat cycles pump that condenser provides power; The real-time evaporating pressure that is used for recording is sent to the pressure sensor of controller; Be used for the real-time evaporating pressure of pressure sensor transmission and the standard evaporating pressure of self storage are compared, and the flow-dividing control signal that obtains sent to the controller of electric three passes control valve; Wherein, pressure sensor is installed in the evaporator refrigerant passage;
Path between the import of electric three passes control valve and the outlet of outside industrial equipment is provided with water pump, first outlet of electric three passes control valve is communicated with the import of heat exchanger primary side, the outlet of heat exchanger primary side is communicated with outside industrial equipment import, the import of heat exchanger secondary side is communicated with outside running water pipe, and the outlet of heat exchanger secondary side is communicated with the thermal storage tank; Second outlet of electric three passes control valve is communicated with the import of evaporimeter primary side, the outlet of evaporimeter primary side is communicated with outside industrial equipment import, is communicated with by expansion valve between the outlet of the import of evaporimeter secondary side and condenser primary side, the evaporimeter secondary side exports and is communicated with the refrigeration compressor import; Refrigeration compressor outlet is communicated with the import of condenser primary side, the import of condenser secondary side be communicated with by the heat cycles pump between hot water storage tank first exports, the condenser secondary side exports and is communicated with thermal storage tank's first import; Thermal storage tank's second import is communicated with outside hot water subscriber's outlet, and thermal storage tank's second outlet is communicated with outside hot water user import; The pressure sensor output connects the controller input, and controller output end connects the automatically controlled end of electric three passes control valve.
2. the heat pump hot-water system of a kind of industrial afterheat recovery according to claim 1 is characterized in that, described controller comprises memory, comparator; Wherein,
Memory is used for the standard evaporating pressure that storage sets in advance;
Comparator, be used for the real-time evaporating pressure that described pressure sensor is sent, the standard evaporating pressure that reads from memory compares: when real-time evaporating pressure overgauge evaporating pressure, send the flow-dividing control signal that reduces heat cycles water to described electric three passes control valve; When real-time evaporating pressure during less than the standard evaporating pressure, send the flow-dividing control signal that increases heat cycles water to described electric three passes control valve;
Described electric three passes control valve is used for when receiving the flow-dividing control signal of the minimizing heat cycles water that comparator sends, and reduces the heat cycles water water yield, increases the warm-up cycle water water yield simultaneously; When receiving the flow-dividing control signal of the increase heat cycles water that comparator sends, increase the heat cycles water water yield, reduce the warm-up cycle water water yield simultaneously.
3. the heat pump hot-water system of a kind of industrial afterheat recovery according to claim 1 is characterized in that, the described temperature that carries the cooling circulating water of industrial exhaust heat is 30 ℃～50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640423 CN203052982U (en) | 2012-11-28 | 2012-11-28 | Heat-pump water heating system for recovering industrial residual heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640423 CN203052982U (en) | 2012-11-28 | 2012-11-28 | Heat-pump water heating system for recovering industrial residual heat |
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| Publication Number | Publication Date |
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| CN203052982U true CN203052982U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220640423 Expired - Fee Related CN203052982U (en) | 2012-11-28 | 2012-11-28 | Heat-pump water heating system for recovering industrial residual heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335408A (en) * | 2013-07-16 | 2013-10-02 | 江苏天舒电器有限公司 | Method for controlling constant temperature of water discharged from waste heat comprehensive utilizing system and controlling device of waste heat comprehensive utilizing system |
-
2012
- 2012-11-28 CN CN 201220640423 patent/CN203052982U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335408A (en) * | 2013-07-16 | 2013-10-02 | 江苏天舒电器有限公司 | Method for controlling constant temperature of water discharged from waste heat comprehensive utilizing system and controlling device of waste heat comprehensive utilizing system |
| CN103335408B (en) * | 2013-07-16 | 2015-08-26 | 江苏天舒电器有限公司 | Used heat utilization system water outlet constant-temperature control method and control device thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20201128 |