CN213147017U - Improved efficient refrigerating heat recovery system with double-effect heat exchanger - Google Patents
Improved efficient refrigerating heat recovery system with double-effect heat exchanger Download PDFInfo
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- CN213147017U CN213147017U CN202021209800.1U CN202021209800U CN213147017U CN 213147017 U CN213147017 U CN 213147017U CN 202021209800 U CN202021209800 U CN 202021209800U CN 213147017 U CN213147017 U CN 213147017U
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Abstract
The utility model relates to a high-efficient refrigeration heat recovery system of modified area economic benefits and social benefits heat exchanger. The problems to be solved are that: poor heat recovery effect and low performance. The technical key points are as follows: the refrigeration compressor is connected with the double-effect heat exchanger, the liquid falling valve and the washing type intercooler, and is also connected with the flow regulating valve, the air inlet and the air outlet of the washing type intercooler, the heat recovery compressor, the high-temperature sensible heat recoverer, the high-temperature condenser, the throttle valve and the washing type intercooler, and the high-temperature condenser is connected to the refrigeration system through an opening F; the refrigeration compressor is connected with the double-effect heat exchanger, the switching valve and the port G to the condenser of the refrigeration system, the switching valve is connected with the air inlet and the air outlet of the washing type intercooler, the heat recovery compressor, the high-temperature sensible heat recoverer, the high-temperature condenser, the throttle valve and the washing type intercooler, and the high-temperature condenser is connected to the refrigeration system through the port F; the liquid outlet of the double-effect heat exchanger is higher than the liquid level of the washing type intercooler. The method is suitable for a refrigeration heat recovery system.
Description
The technical field is as follows: the utility model belongs to the refrigeration technology, specifically speaking are a high-efficient refrigeration heat recovery system of modified area economic benefits and social benefits heat exchanger.
Background art: in recent years, relatively short energy sources restrict sustainable development of economy in China, energy consumption reduction is urgent, and a heat recovery technology and application thereof in energy conservation and environmental protection and energy consumption reduction of a refrigeration system have very important significance. The invention patent publication No. CN 106969538B, "a device for recovering waste heat of a refrigeration system for realizing water supply in multiple temperature zones and a control method" is a typical application, and the system has the following design which influences the heat recovery performance: the latent heat recoverer is used for condensing the exhaust gas of the refrigerating system, the water yield of the latent heat recoverer is high in summer and autumn, the effect is good, but the water temperature of the latent heat recoverer is low due to low condensation temperature in winter and spring, and the heat recovery effect is poor; the suction gas of the heat recovery compressor is evaporated from a refrigerant of the heat exchanger, and a larger heat exchange temperature difference exists between the suction gas and the condensing temperature of the refrigerating system, so that the performance of the heat recovery compressor is lower; the valley electric heater is adopted for higher-temperature water, so that the energy consumption is increased.
The utility model has the following contents: the utility model aims at providing a high-efficient refrigeration heat recovery system of modified area economic benefits and social benefits heat exchanger to solve the background art existence: in winter and spring, the condensation temperature is low, the water outlet temperature of the latent heat recoverer is low, and the heat recovery effect is poor; the suction gas of the heat recovery compressor is evaporated from a refrigerant of the heat exchanger, and a larger heat exchange temperature difference exists between the suction gas and the condensing temperature of the refrigerating system, so that the performance of the heat recovery compressor is lower; the valley electric heater is adopted for higher-temperature water, so that the energy consumption is increased. The technical scheme for solving the technical problem is as follows: the first scheme is as follows: the utility model provides a high-efficient refrigeration heat recovery system of modified area economic benefits and social benefits heat exchanger which characterized in that: the refrigerant pipeline of the refrigerating system is as follows: the exhaust port of the refrigeration compressor is sequentially connected with a flow regulating valve and a port G through pipelines and is connected to a condenser of the refrigeration system; the heat recovery system refrigerant line is: when the double-effect heat exchanger is used as a latent heat recoverer, an exhaust port of a refrigeration compressor is sequentially connected with the double-effect heat exchanger, a liquid falling valve and a liquid falling port of a washing type intercooler through pipelines, the exhaust port of the refrigeration compressor is sequentially connected with a flow regulating valve, an air inlet of the washing type intercooler, an air outlet of the washing type intercooler, a heat recovery compressor, a high-temperature sensible heat recoverer, a high-temperature condenser, a throttle valve and a liquid inlet of the washing type intercooler through pipelines, and a liquid outlet of the high-temperature condenser is connected with an F port; when the double-effect heat exchanger is used as a sensible heat recoverer, an exhaust port of a refrigeration compressor is sequentially connected with the double-effect heat exchanger, a change-over valve and a port G through pipelines and is connected to a condenser of a refrigeration system, the change-over valve is sequentially connected with an air inlet of a washing intercooler, an air outlet of the washing intercooler, the heat recovery compressor, a high-temperature sensible heat recoverer, a high-temperature condenser, a throttle valve and a liquid inlet of the washing intercooler through pipelines, and a liquid outlet of the high-temperature condenser is connected; the water system is as follows: the port A of the water inlet is sequentially connected with the double-effect heat exchanger, an oil cooler of the heat recovery compressor, a high-temperature condenser, a high-temperature sensible heat recoverer and a port B of the water outlet through pipelines; the liquid outlet of the double-effect heat exchanger is higher than the liquid level of the washing type intercooler.
The second scheme is as follows: the utility model provides a high-efficient refrigeration heat recovery system of modified area economic benefits and social benefits heat exchanger which characterized in that: the refrigerant pipeline of the refrigerating system is as follows: the exhaust port of the refrigeration compressor is sequentially connected with a flow regulating valve and a port G through pipelines and is connected to a condenser of the refrigeration system; the heat recovery system refrigerant line is: when the double-effect heat exchanger is used as a latent heat recoverer, an exhaust port of a refrigeration compressor is sequentially connected with the double-effect heat exchanger, a liquid falling valve and a liquid falling port of a washing type intercooler through pipelines, the exhaust port of the refrigeration compressor is sequentially connected with a flow regulating valve, an air inlet of the washing type intercooler, an air outlet of the washing type intercooler, a heat recovery compressor, a high-temperature sensible heat recoverer, a high-temperature condenser, a throttle valve and a liquid inlet of the washing type intercooler through pipelines, and the liquid outlet of the washing type intercooler is connected to a refrigeration system from an H port; when the double-effect heat exchanger is used as a sensible heat recoverer, an exhaust port of a refrigeration compressor is sequentially connected with the double-effect heat exchanger, a change-over valve and a port G through pipelines and is connected to a condenser of a refrigeration system, the change-over valve is sequentially connected with an air inlet of a washing intercooler, an air outlet of the washing intercooler, the heat recovery compressor, a high-temperature sensible heat recoverer, a high-temperature condenser, a throttle valve and a liquid inlet of the washing intercooler through pipelines, and a liquid outlet of the washing intercooler is connected to the refrigeration system from; the water system is as follows: the port A of the water inlet is sequentially connected with the double-effect heat exchanger, an oil cooler of the heat recovery compressor, a high-temperature condenser, a high-temperature sensible heat recoverer and a port B of the water outlet through pipelines; the liquid outlet of the double-effect heat exchanger is higher than the liquid level of the washing type intercooler.
In the two schemes, the high-temperature condenser is provided with a water outlet port C, the oil cooler of the heat recovery compressor is provided with a water outlet port D, and the double-effect heat exchanger is provided with a water outlet port E. The number of the refrigeration compressors is one or more, and the number of the heat recovery compressors is one or more. A water flow regulating valve A is arranged between the water inlet and the water outlet of the high-temperature sensible heat recoverer, a water flow regulating valve B is arranged between the water inlet and the water outlet of the high-temperature condenser, a water flow regulating valve C is arranged between the water inlet and the water outlet of an oil cooler of the heat recovery compressor, and a water flow regulating valve D is arranged between the water inlet and the water outlet of the double-.
Compared with the prior art, the utility model has the beneficial effect that: by adopting the technical scheme, on one hand, when the condensation temperature of the refrigeration system is lower in winter and spring, the conversion valve is opened, the liquid falling valve is closed, part of exhaust gas of the refrigeration system enters the double-effect heat exchanger under the allocation of the flow regulating valve, the superheat degree of the gas of the double-effect heat exchanger is controlled, the double-effect heat exchanger is used as a sensible heat recoverer, so that the water temperature of an opening E can be higher, namely the heat exchange quantity of the sensible heat recoverer is larger, and the efficiency of the heat recovery system is higher; when the condensing temperature of the refrigerating system is higher in summer and autumn, the change-over valve is closed, the liquid falling valve is opened, the double-effect heat exchanger at the moment is used as a latent heat recoverer, the heat exchange quantity of the latent heat recoverer is large, the water flow of the latent heat recovery system is larger, and the efficiency is higher than that of the sensible heat recoverer. On the other hand, the washing type intercooler is arranged, the suction pressure of the heat recovery compressor is equal to the exhaust pressure of the refrigerating system, no intermediate heat exchange temperature difference exists, and the system efficiency is high. On the other hand, set up high temperature sensible heat recoverer, utilized the high-grade exhaust sensible heat of heat recovery compressor better, need not extra millet electrical heating just can acquire the still high temperature hot water that is high than heat recovery compressor condensation temperature like this, the system is more energy-conserving, and high temperature water is discharged from delivery port B mouth, and the temperature of E mouth, D mouth, C mouth, B mouth increases in proper order, and the system application is more nimble. On the other hand, the liquid outlet of the double-effect heat exchanger is higher than the liquid level of the washing type intercooler, when the double-effect heat exchanger is used as a sensible heat recoverer, liquid condensed under the condition change can be discharged into the washing type intercooler from the liquid outlet of the double-effect heat exchanger through a conversion valve by means of gravity, and the liquid can not influence the heat exchange in the double-effect heat exchanger; when the double-effect heat exchanger is used as a latent heat recoverer, condensed liquid is discharged into a washing type intercooler from a liquid outlet of the double-effect heat exchanger through a liquid dropping valve by means of gravity, and compared with a scheme connected to a refrigerating system, the system pipeline is shortened, a set of liquid level control assembly is saved, the control is simpler, and the economical efficiency is higher.
Description of the drawings:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention. Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
The specific implementation mode is as follows:
example 1: referring to fig. 1, an improved high-efficiency refrigeration heat recovery system with a double-effect heat exchanger is characterized in that: the refrigerant pipeline of the refrigerating system is as follows: an exhaust port of the refrigeration compressor 1 is sequentially connected with a flow regulating valve 2 and a port G through pipelines and is connected to a condenser of a refrigeration system; the heat recovery system refrigerant line is: when the double-effect heat exchanger 4 is used as a latent heat recoverer, an exhaust port of a refrigeration compressor 1 is sequentially connected with the double-effect heat exchanger 4, a liquid dropping valve 6 and a liquid dropping port of a washing type intercooler 7 through pipelines, the exhaust port of the refrigeration compressor 1 is sequentially connected with a flow regulating valve 2, an air inlet of the washing type intercooler 7, an air outlet of the washing type intercooler 7, a heat recovery compressor 14, a high-temperature sensible heat recoverer 8, a high-temperature condenser 10, a throttle valve 13 and a liquid inlet of the washing type intercooler 7 through pipelines, and a liquid outlet of the high-temperature condenser 10 is connected with an F port; when the double-effect heat exchanger 4 is used as a sensible heat recoverer, an exhaust port of the refrigeration compressor 1 is sequentially connected with the double-effect heat exchanger 4, a change-over valve 3 and a port G through pipelines and is connected to a condenser of the refrigeration system, the change-over valve 3 is sequentially connected with an air inlet of a washing type intercooler 7, an air outlet of the washing type intercooler 7, a heat recovery compressor 14, a high-temperature sensible heat recoverer 8, a high-temperature condenser 10, a throttle valve 13 and a liquid inlet of the washing type intercooler 7 through pipelines, and a liquid outlet of the high-temperature condenser; the water system is as follows: the port A of the water inlet is sequentially connected with the double-effect heat exchanger 4, an oil cooler of the heat recovery compressor 14, the high-temperature condenser 10, the high-temperature sensible heat recoverer 8 and the port B of the water outlet through pipelines; the liquid outlet of the double-effect heat exchanger 4 is higher than the liquid level of the washing type intercooler 7. The high-temperature condenser 10 is provided with a water outlet port C, the oil cooler of the heat recovery compressor 14 is provided with a water outlet port D, and the double-effect heat exchanger 4 is provided with a water outlet port E. The number of the refrigeration compressors 1 is one or more, and the number of the heat recovery compressors 14 is one or more. A water flow regulating valve A9 is arranged between the water inlet and the water outlet of the high-temperature sensible heat recoverer 8, a water flow regulating valve B11 is arranged between the water inlet and the water outlet of the high-temperature condenser 10, a water flow regulating valve C12 is arranged between the water inlet and the water outlet of an oil cooler of the heat recovery compressor 14, and a water flow regulating valve D5 is arranged between the water inlet and the water outlet of the double-effect.
Example 2: referring to fig. 2, an improved high-efficiency refrigeration heat recovery system with a double-effect heat exchanger is characterized in that: the refrigerant pipeline of the refrigerating system is as follows: an exhaust port of the refrigeration compressor 1 is sequentially connected with a flow regulating valve 2 and a port G through pipelines and is connected to a condenser of a refrigeration system; the heat recovery system refrigerant line is: when the double-effect heat exchanger 4 is used as a latent heat recoverer, an exhaust port of a refrigeration compressor 1 is sequentially connected with the double-effect heat exchanger 4, a liquid dropping valve 6 and a liquid dropping port of a washing type intercooler 7 through pipelines, the exhaust port of the refrigeration compressor 1 is sequentially connected with a flow regulating valve 2, an air inlet of the washing type intercooler 7, an air outlet of the washing type intercooler 7, a heat recovery compressor 14, a high-temperature sensible heat recoverer 8, a high-temperature condenser 10, a throttle valve 13 and a liquid inlet of the washing type intercooler 7 through pipelines, and a liquid outlet of the washing type intercooler 7 is connected to a refrigeration system from an H port; when the double-effect heat exchanger 4 is used as a sensible heat recoverer, an exhaust port of the refrigeration compressor 1 is sequentially connected with the double-effect heat exchanger 4, a change-over valve 3 and a port G through pipelines and is connected to a condenser of the refrigeration system, the change-over valve 3 is sequentially connected with an air inlet of a washing type intercooler 7, an air outlet of the washing type intercooler 7, a heat recovery compressor 14, a high-temperature sensible heat recoverer 8, a high-temperature condenser 10, a throttle valve 13 and a liquid inlet of the washing type intercooler 7 through pipelines, and a liquid outlet of the washing type intercooler 7 is connected to; the water system is as follows: the port A of the water inlet is sequentially connected with the double-effect heat exchanger 4, an oil cooler of the heat recovery compressor 14, the high-temperature condenser 10, the high-temperature sensible heat recoverer 8 and the port B of the water outlet through pipelines; the liquid outlet of the double-effect heat exchanger 4 is higher than the liquid level of the washing type intercooler 7. The high-temperature condenser 10 is provided with a water outlet port C, the oil cooler of the heat recovery compressor 14 is provided with a water outlet port D, and the double-effect heat exchanger 4 is provided with a water outlet port E. The number of the refrigeration compressors 1 is one or more, and the number of the heat recovery compressors 14 is one or more. A water flow regulating valve A9 is arranged between the water inlet and the water outlet of the high-temperature sensible heat recoverer 8, a water flow regulating valve B11 is arranged between the water inlet and the water outlet of the high-temperature condenser 10, a water flow regulating valve C12 is arranged between the water inlet and the water outlet of an oil cooler of the heat recovery compressor 14, and a water flow regulating valve D5 is arranged between the water inlet and the water outlet of the double-effect.
Claims (8)
1. The utility model provides a high-efficient refrigeration heat recovery system of modified area economic benefits and social benefits heat exchanger which characterized in that: the refrigerant pipeline of the refrigerating system is as follows: an exhaust port of the refrigeration compressor (1) is sequentially connected with the flow regulating valve (2) through a pipeline, and a port G is connected to a condenser of the refrigeration system; the heat recovery system refrigerant line is: when the double-effect heat exchanger (4) is used as a latent heat recoverer, an exhaust port of a refrigeration compressor (1) is sequentially connected with the double-effect heat exchanger (4), a liquid falling valve (6) and a liquid falling port of a washing type intercooler (7) through pipelines, the exhaust port of the refrigeration compressor (1) is sequentially connected with a flow regulating valve (2), an air inlet of the washing type intercooler (7), an air outlet of the washing type intercooler (7), a heat recovery compressor (14), a high-temperature sensible heat recoverer (8), a high-temperature condenser (10), a throttle valve (13) and a liquid inlet of the washing type intercooler (7) through pipelines, and a liquid outlet of the high-temperature condenser (10) is connected with an F port; when the double-effect heat exchanger (4) is used as a sensible heat recoverer, an exhaust port of a refrigeration compressor (1) is sequentially connected with the double-effect heat exchanger (4), a change-over valve (3) and a port G through pipelines and is connected to a condenser of a refrigeration system, the change-over valve (3) is sequentially connected with an air inlet of a washing type intercooler (7), an air outlet of the washing type intercooler (7), a heat recovery compressor (14), a high-temperature sensible heat recoverer (8), a high-temperature condenser (10), a throttle valve (13) and a liquid inlet of the washing type intercooler (7) through pipelines, and a liquid outlet of the high-temperature condenser (10; the water system is as follows: the port A of the water inlet is sequentially connected with the double-effect heat exchanger (4), an oil cooler of the heat recovery compressor (14), a high-temperature condenser (10), a high-temperature sensible heat recoverer (8) and a port B of the water outlet through pipelines; the liquid outlet of the double-effect heat exchanger (4) is higher than the liquid level of the washing type intercooler (7).
2. The utility model provides a high-efficient refrigeration heat recovery system of modified area economic benefits and social benefits heat exchanger which characterized in that: the refrigerant pipeline of the refrigerating system is as follows: an exhaust port of the refrigeration compressor (1) is sequentially connected with the flow regulating valve (2) through a pipeline, and a port G is connected to a condenser of the refrigeration system; the heat recovery system refrigerant line is: when the double-effect heat exchanger (4) is used as a latent heat recoverer, an exhaust port of a refrigeration compressor (1) is sequentially connected with the double-effect heat exchanger (4), a liquid falling valve (6) and a liquid falling port of a washing type intercooler (7) through pipelines, the exhaust port of the refrigeration compressor (1) is sequentially connected with a flow regulating valve (2), an air inlet of the washing type intercooler (7), an air outlet of the washing type intercooler (7), a heat recovery compressor (14), a high-temperature sensible heat recoverer (8), a high-temperature condenser (10), a throttle valve (13) and a liquid inlet of the washing type intercooler (7) through pipelines, and a liquid outlet of the washing type intercooler (7) is connected to a refrigeration system from an H port; when the double-effect heat exchanger (4) is used as a sensible heat recoverer, an exhaust port of a refrigeration compressor (1) is sequentially connected with the double-effect heat exchanger (4), a change-over valve (3) and a port G through pipelines and is connected to a condenser of a refrigeration system, the change-over valve (3) is sequentially connected with an air inlet of a washing type intercooler (7), an air outlet of the washing type intercooler (7), a heat recovery compressor (14), a high-temperature sensible heat recoverer (8), a high-temperature condenser (10), a throttle valve (13) and a liquid inlet of the washing type intercooler (7) through pipelines, and a liquid outlet of the washing type intercooler (7) is connected to; the water system is as follows: the port A of the water inlet is sequentially connected with the double-effect heat exchanger (4), an oil cooler of the heat recovery compressor (14), a high-temperature condenser (10), a high-temperature sensible heat recoverer (8) and a port B of the water outlet through pipelines; the liquid outlet of the double-effect heat exchanger (4) is higher than the liquid level of the washing type intercooler (7).
3. An improved high efficiency refrigeration heat recovery system with dual effect heat exchanger as claimed in claim 1 or 2 wherein: the high-temperature condenser (10) is provided with a water outlet port C, the oil cooler of the heat recovery compressor (14) is provided with a water outlet port D, and the double-effect heat exchanger (4) is provided with a water outlet port E.
4. An improved high efficiency refrigeration heat recovery system with dual effect heat exchanger as claimed in claim 1 or 2 wherein: the number of the refrigeration compressors (1) is one or more, and the number of the heat recovery compressors (14) is one or more.
5. An improved high efficiency refrigeration heat recovery system with dual effect heat exchanger as set forth in claim 3 wherein: the number of the refrigeration compressors (1) is one or more, and the number of the heat recovery compressors (14) is one or more.
6. An improved high efficiency refrigeration heat recovery system with dual effect heat exchanger as claimed in claim 1 or 2 wherein: a water flow regulating valve A (9) is arranged between the water inlet and the water outlet of the high-temperature sensible heat recoverer (8), a water flow regulating valve B (11) is arranged between the water inlet and the water outlet of the high-temperature condenser (10), a water flow regulating valve C (12) is arranged between the water inlet and the water outlet of an oil cooler of the heat recovery compressor (14), and a water flow regulating valve T (5) is arranged between the water inlet and the water outlet of the double-effect heat.
7. An improved high efficiency refrigeration heat recovery system with dual effect heat exchanger as set forth in claim 3 wherein: a water flow regulating valve A (9) is arranged between the water inlet and the water outlet of the high-temperature sensible heat recoverer (8), a water flow regulating valve B (11) is arranged between the water inlet and the water outlet of the high-temperature condenser (10), a water flow regulating valve C (12) is arranged between the water inlet and the water outlet of an oil cooler of the heat recovery compressor (14), and a water flow regulating valve T (5) is arranged between the water inlet and the water outlet of the double-effect heat.
8. An improved high efficiency refrigeration heat recovery system with dual effect heat exchanger as set forth in claim 4 wherein: a water flow regulating valve A (9) is arranged between the water inlet and the water outlet of the high-temperature sensible heat recoverer (8), a water flow regulating valve B (11) is arranged between the water inlet and the water outlet of the high-temperature condenser (10), a water flow regulating valve C (12) is arranged between the water inlet and the water outlet of an oil cooler of the heat recovery compressor (14), and a water flow regulating valve T (5) is arranged between the water inlet and the water outlet of the double-effect heat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021209800.1U CN213147017U (en) | 2020-06-28 | 2020-06-28 | Improved efficient refrigerating heat recovery system with double-effect heat exchanger |
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| CN202021209800.1U CN213147017U (en) | 2020-06-28 | 2020-06-28 | Improved efficient refrigerating heat recovery system with double-effect heat exchanger |
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| CN213147017U true CN213147017U (en) | 2021-05-07 |
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