CN220453982U - Heat recovery system of refrigeration compressor - Google Patents
Heat recovery system of refrigeration compressor Download PDFInfo
- Publication number
- CN220453982U CN220453982U CN202220666665.6U CN202220666665U CN220453982U CN 220453982 U CN220453982 U CN 220453982U CN 202220666665 U CN202220666665 U CN 202220666665U CN 220453982 U CN220453982 U CN 220453982U
- Authority
- CN
- China
- Prior art keywords
- liquid
- gas
- outlet
- communicated
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 31
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000010992 reflux Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 239000003507 refrigerant Substances 0.000 claims description 18
- 239000007789 gas Substances 0.000 description 15
- 238000004134 energy conservation Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides a refrigeration compressor heat recovery system, which comprises a refrigeration system, a heat exchange mechanism and a gas-liquid reflux mechanism, wherein the heat exchange mechanism is arranged on the refrigeration system; the refrigerating mechanism comprises a compressor, a condenser, a throttle valve and an evaporator; the gas-liquid reflux mechanism comprises a gas-liquid separator, an outlet of the compressor is communicated with an inlet of the heat exchange mechanism, an outlet of the heat exchange mechanism is communicated with an inlet of the gas-liquid separator, a gas outlet of the gas-liquid separator is communicated with an inlet of the condenser, a liquid outlet of the gas-liquid separator is communicated with a liquid outlet of the condenser, a liquid outlet of the condenser is communicated with an inlet of the evaporator, and an outlet of the evaporator is communicated with an inlet of the compressor. The system can realize the efficient recovery of the exhaust heat of the compressor on the basis of ensuring the normal operation of the original refrigerating system, and can effectively reduce the condensing pressure and the power consumption of the refrigerating compressor.
Description
Technical Field
The utility model relates to the technical field of refrigeration compressor heat recovery, in particular to a refrigeration compressor heat recovery system.
Background
The energy conservation and emission reduction work of each energy-consuming enterprise is greatly promoted in all places.
The compressor is a driven fluid machine, and mainly serves to lift low-pressure gas into high-pressure gas, and is a heart of a refrigerating system. The refrigerating cycle is realized by sucking low-temperature low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through motor operation, and then discharging high-temperature high-pressure refrigerant gas to the air discharge pipe to provide power for the refrigerating cycle. The gas exhausted from the exhaust pipe contains higher heat, and if the heat is directly released in the condensation process, the energy waste is caused.
At present, there are a plurality of devices related to waste heat recovery on the market, but there is no system related to heat recovery of a compressor in the true sense on the market. In food enterprises, refrigeration enterprises, large hotels, commercial superenterprises and the like, large refrigeration houses or large air-conditioning systems are used, and the refrigeration systems of the large refrigeration houses or the large air-conditioning systems are required to discharge heat discharged by a compressor into the atmosphere through a condenser, so that how to effectively utilize heat energy of the compressor to prepare hot water necessary for production or life and ensure normal operation of the refrigeration systems is the most critical problem.
Disclosure of Invention
In view of the above, the present utility model provides a heat recovery system for a refrigeration compressor, by which the exhaust heat of the compressor can be efficiently recovered while ensuring the normal operation of the original refrigeration system, and the condensing pressure can be effectively reduced, thereby reducing the power consumption of the refrigeration compressor.
In order to solve the technical problems, the utility model provides a heat recovery system of a refrigeration compressor, which comprises a refrigeration system, a heat exchange mechanism and a gas-liquid reflux mechanism;
the refrigerating mechanism comprises a compressor, a condenser, a throttle valve and an evaporator, the gas-liquid reflux mechanism comprises a gas-liquid separator, the outlet of the compressor is communicated with the inlet of the heat exchange mechanism, the outlet of the heat exchange mechanism is communicated with the inlet of the gas-liquid separator, the gas outlet of the gas-liquid separator is communicated with the inlet of the condenser, the liquid outlet of the gas-liquid separator is communicated with the liquid outlet of the condenser, the liquid outlet of the condenser is communicated with the inlet of the evaporator, and the outlet of the evaporator is communicated with the inlet of the compressor.
Further, the heat exchange mechanism comprises a heat exchanger.
Further, the heat exchange mechanism further comprises a water pump and a water tank, wherein a hot water outlet of the heat exchanger is communicated with the water tank, a bottom outlet of the water tank is communicated with an inlet of the water pump, and an outlet of the water pump is communicated with a cold water inlet of the heat exchanger.
Further, a liquid level controller is arranged on the gas-liquid separator, a liquid outlet of the gas-liquid separator is communicated with a liquid outlet of the condenser through a first pipeline, an electromagnetic liquid discharge valve is arranged on the first pipeline, and the liquid level controller is electrically connected with the electromagnetic liquid discharge valve.
Further, the liquid outlet of the condenser is communicated with the inlet of the evaporator through a second pipeline, and a throttle valve is arranged on the second pipeline.
Further, the liquid outlet of the heat exchanger is higher than the liquid outlet of the condenser.
Further, the heat exchanger is a shell-and-tube heat exchanger.
The technical scheme of the utility model has the following beneficial effects:
1. the waste heat discharged by the refrigeration compressor can be efficiently utilized to generate a large amount of hot water which can be used for producing life and used for producing and living, so that the consumption of steam is saved;
2. the cost is low, and the current year investment and current year recovery cost are realized;
3. the automatic operation is stable and reliable;
4. the condensation pressure in the refrigeration system can be reduced, the refrigeration efficiency is improved, and the power consumption of the compressor is saved.
At present, the recovery equipment is installed and operated normally, and the generated hot water is used for production and life, so that the energy conservation and consumption reduction are realized, better economic benefits are obtained, the energy conservation and emission reduction proposed by the country are supported strongly, and the carbon reaching peak and the carbon neutralization target proposed by the country are accelerated.
Drawings
Fig. 1 is a schematic diagram of a refrigeration compressor heat recovery system of the present utility model.
1. A refrigeration system; 2. a compressor; 3. a condenser; 4. a second pipeline; 5. a throttle valve; 6. an evaporator; 7. an electromagnetic liquid discharge valve; 8. a first pipeline; 9. a liquid level controller; 10. a gas-liquid separator; 11. a heat exchanger; 12. a water pump; 13. a water tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.
Example 1
As shown in fig. 1: the embodiment provides a refrigeration compressor heat recovery system, which comprises a refrigeration system 1, a heat exchange mechanism and a gas-liquid reflux mechanism;
the refrigerating mechanism comprises a compressor 2, a condenser 3, a throttle valve 5 and an evaporator 6, the gas-liquid reflux mechanism comprises a gas-liquid separator 10, an outlet of the compressor 2 is communicated with an inlet of the heat exchange mechanism, an outlet of the heat exchange mechanism is communicated with an inlet of the gas-liquid separator 10, a gas outlet of the gas-liquid separator 10 is communicated with an inlet of the condenser 3, a liquid outlet of the gas-liquid separator 10 is communicated with a liquid outlet of the condenser 3, a liquid outlet of the condenser 3 is communicated with an inlet of the evaporator 6, and an outlet of the evaporator 6 is communicated with an inlet of the compressor 2; the heat exchange mechanism includes a heat exchanger 11.
Specifically, if no special requirement exists for the communication of all the components, the components are communicated through the pipeline, and in order to reduce the heat exchange with the outside, an insulation layer is added on the outer surface of the pipeline. The outlet of the compressor 2 discharges the gaseous refrigerant to the inside of the heat exchanger 11, so as to exchange heat with the heat exchange medium in the heat exchanger 11, where the medium may be water, or may be other substances such as air, for realizing the heating or heat storage function. In addition, the gas-liquid reflux mechanism adopts a gas-liquid separator 10 to separate the refrigerant liquid generated after passing through the heat exchanger 11 from the refrigerant gas, thereby avoiding damage to equipment such as liquid impact, vibration and the like.
According to one embodiment of the present utility model, as shown in figure 1,
the heat exchange mechanism further comprises a water pump 12 and a water tank 13, wherein a hot water outlet of the heat exchanger 11 is communicated with the water tank 13, a bottom outlet of the water tank 13 is communicated with an inlet of the water pump 12, and an outlet of the water pump 12 is communicated with a cold water inlet of the heat exchanger 11. The water pump 12 and the water tank 13 in this embodiment promote the circulation of hot water, which is used for production as well as for life, by taking away the heat of the refrigerant from the heat exchanger 11, thereby storing heat energy in the water. After the equipment is operated, hot water with the temperature of 50-70 ℃ can be obtained according to the power of the refrigerating system 1.
According to one embodiment of the present utility model, as shown in figure 1,
the liquid level controller 9 is arranged on the gas-liquid separator 10, a liquid outlet of the gas-liquid separator 10 is communicated with a liquid outlet of the condenser 3 through a first pipeline 8, the first pipeline 8 is provided with the electromagnetic liquid discharge valve 7, and the liquid level controller 9 is electrically connected with the electromagnetic liquid discharge valve 7. The liquid discharge port of the condenser 3 is communicated with the inlet of the evaporator 6 through a second pipeline 4, and a throttle valve 5 is arranged on the second pipeline 4. The electromagnetic liquid discharge valve 7 is connected with the liquid level controller 9 in a signal mode, meanwhile, the two parts are also connected with the master control in a communication mode, after the liquid level in the gas-liquid separator 10 reaches a threshold value, the electromagnetic liquid discharge valve 7 is opened to discharge refrigerant liquid, and the refrigerant liquid discharged by the condenser 3 are converged and then enter the evaporator 6. The threshold value setting of the liquid level controller 9 is set according to the model and the implementation of the gas-liquid separator 10, and the stable operation of the equipment is satisfied.
In one embodiment of the present utility model, as shown in figure 1,
the liquid outlet of the heat exchanger 11 is higher than the liquid outlet of the condenser 3, so that when in installation, the position of the heat exchanger 11 is positioned above the condenser 3, so that the liquid of the refrigerant can smoothly flow according to the process flow, and the normal operation of the refrigeration system 1 is ensured.
In one embodiment of the present utility model, as shown in figure 1,
the heat exchanger 11 is a shell-and-tube heat exchanger, and avoids influencing the COP of the unit and the refrigerating system 1. The inlet and outlet pressure drop of the shell-and-tube heat exchanger is more than 5 times smaller than that of a common heat exchanger and less than 0.1Bar; the smaller the refrigeration pressure drop, the less impact on the unit COP. Therefore, the heat exchanger 11 adopts a shell-and-tube heat exchanger and then is used for the whole the negative effect of the refrigeration system 1 on COP is negligible, on the other hand: due to the addition of the shell-and-tube heat exchanger, the condensing pressure of the unit is reduced by 10%, and the COP can be improved by more than 8%, so that the energy conservation and consumption reduction are realized.
The working method of the utility model comprises the following steps:
when the refrigerating system 1 normally operates, the water pump 12 is started, high-temperature gas discharged by the compressor 2 firstly enters the heat exchanger 11 through the refrigerating pipeline, the high-temperature gas of the refrigerant exchanges heat with water in the water tank 13 through the water pump 12, when liquid is condensed in the gas-liquid separator 10 and reaches a certain height, the liquid level controller 9 sends out a signal, the liquid discharge electromagnetic valve is opened, and the refrigerant liquid is discharged; when the liquid level in the gas-liquid separator 10 is lower than the set value of the liquid level controller 9, the liquid draining electromagnetic valve is closed. On the other hand, the gas entering the gas-liquid separator 10, the gas discharged by separation enters the gas inlet of the condenser 3 for further condensation, and the liquid discharged by separation enters the refrigeration system 1 together with the liquid discharge port of the condenser 3 through the electromagnetic liquid discharge valve 7. By this circulation operation, the heat of the high-temperature gas discharged from the refrigeration compressor 2 is continuously transferred to the cold water in the water tank 13, and the temperature of the cold water in the water tank 13 is continuously increased. Because the exhaust temperature of the compressor 2 is about 75 ℃, hot water at about 65 ℃ can be obtained after heat exchange and is used for producing and living water, thereby achieving the purpose of saving energy.
In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (7)
1. A refrigeration compressor heat recovery system, characterized by: comprises a refrigerating system (1), a heat exchange mechanism and a gas-liquid reflux mechanism;
the refrigeration mechanism comprises a compressor (2), a condenser (3), a throttle valve (5) and an evaporator (6); the gas-liquid reflux mechanism comprises a gas-liquid separator (10), an outlet of the compressor (2) is communicated with an inlet of the heat exchange mechanism, an outlet of the heat exchange mechanism is communicated with an inlet of the gas-liquid separator (10), a gas outlet of the gas-liquid separator (10) is communicated with an inlet of the condenser (3), a liquid outlet of the gas-liquid separator (10) is communicated with a liquid outlet of the condenser (3), a liquid outlet of the condenser (3) is communicated with an inlet of the evaporator (6), and an outlet of the evaporator (6) is communicated with an inlet of the compressor (2).
2. The refrigerant compressor heat recovery system as set forth in claim 1, wherein: the heat exchange mechanism comprises a heat exchanger (11).
3. The refrigerant compressor heat recovery system as set forth in claim 2, wherein: the heat exchange mechanism further comprises a water pump (12) and a water tank (13), wherein a hot water outlet of the heat exchanger (11) is communicated with the water tank (13), a bottom outlet of the water tank (13) is communicated with an inlet of the water pump (12), and an outlet of the water pump (12) is communicated with a cold water inlet of the heat exchanger (11).
4. The refrigerant compressor heat recovery system as set forth in claim 1, wherein: the liquid level controller (9) is arranged on the gas-liquid separator (10), a liquid outlet of the gas-liquid separator (10) is communicated with a liquid outlet of the condenser (3) through a first pipeline (8), an electromagnetic liquid discharge valve (7) is arranged on the first pipeline (8), and the liquid level controller (9) is electrically connected with the electromagnetic liquid discharge valve (7).
5. The refrigerant compressor heat recovery system according to claim 4, wherein: the liquid outlet of the condenser (3) is communicated with the inlet of the evaporator (6) through a second pipeline (4), and a throttle valve (5) is arranged on the second pipeline (4).
6. The refrigerant compressor heat recovery system as set forth in claim 2, wherein: the liquid outlet of the heat exchanger (11) is higher than the liquid outlet of the condenser (3).
7. The refrigerant compressor heat recovery system as set forth in claim 2, wherein: the heat exchanger (11) is a shell-and-tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220666665.6U CN220453982U (en) | 2022-03-25 | 2022-03-25 | Heat recovery system of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220666665.6U CN220453982U (en) | 2022-03-25 | 2022-03-25 | Heat recovery system of refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220453982U true CN220453982U (en) | 2024-02-06 |
Family
ID=89734696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220666665.6U Active CN220453982U (en) | 2022-03-25 | 2022-03-25 | Heat recovery system of refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220453982U (en) |
-
2022
- 2022-03-25 CN CN202220666665.6U patent/CN220453982U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101936616B (en) | Evaporative condensate pump circulating year-round refrigeration device | |
| CN202133043U (en) | Water-cooling household air-conditioner outdoor set | |
| CN111306787B (en) | Semi-open type high-temperature heat pump system and working method thereof | |
| CN111565546A (en) | Oil-free efficient refrigeration system for data center and control method thereof | |
| CN101936614B (en) | Liquid-supplying and cold and hot water-circulating machine set of evaporative condensate pump | |
| CN107084463B (en) | Composite cold source water chilling unit | |
| CN220453982U (en) | Heat recovery system of refrigeration compressor | |
| CN201014851Y (en) | Dual-segment dual-purpose condenser of refrigerating machine | |
| CN211931165U (en) | Oil-free efficient refrigerating system for data center | |
| CN213955675U (en) | Multi-temperature-zone refrigerating system is with connecting in parallel unit of breathing in more | |
| CN210718209U (en) | Heat pump system with defrosting function | |
| CN114877560A (en) | Heat recovery system of refrigeration compressor | |
| CN212720369U (en) | Heat pump system with double backheating | |
| CN212299165U (en) | Composite source split heat pump machine | |
| CN211739528U (en) | Multi-split VRV device for machine room | |
| CN210486163U (en) | High-efficient refrigeration waste heat utilization system | |
| CN105402959A (en) | Forced convective circulating flooded evaporator refrigerating system driven by recovered throttling loss | |
| CN201163118Y (en) | Novel refrigeration unit | |
| CN212902077U (en) | Environment-friendly refrigeration equipment | |
| CN216769836U (en) | Energy-saving and efficient refrigeration cascade system | |
| CN201093812Y (en) | Water chilling unit oil returning apparatus for commercial use | |
| CN210892223U (en) | Plate-exchange type brine unit | |
| CN217421520U (en) | Water ring vacuum pump cooling system applied to heat pump evaporation equipment | |
| CN212253215U (en) | High-efficient cold and warm type heat pump | |
| CN220793384U (en) | Combined type exhaust heat recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |