CN220169550U - Coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment - Google Patents
Coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment Download PDFInfo
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- CN220169550U CN220169550U CN202321505639.6U CN202321505639U CN220169550U CN 220169550 U CN220169550 U CN 220169550U CN 202321505639 U CN202321505639 U CN 202321505639U CN 220169550 U CN220169550 U CN 220169550U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 198
- 238000010438 heat treatment Methods 0.000 title claims abstract description 44
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 title claims abstract description 14
- 238000010168 coupling process Methods 0.000 title claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 14
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 16
- 238000004378 air conditioning Methods 0.000 abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002737 fuel gas Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The utility model provides a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment, which comprises a water-water heat pump, a heat exchanger, a mixed water preheating tank and a volumetric heat exchanger heating tank. The low-level heat in the air-conditioning chilled water system is absorbed by the water-water heat pump, the heat source is brought by indoor personnel, equipment and natural temperature, and the water-water heat pump unit is used for collecting the heat from the air-conditioning system and heating domestic hot water, so that the use of primary energy sources such as fuel gas and the like caused by heating the domestic hot water is effectively reduced, and the running cost and carbon emission of the system are obviously reduced. Because the water-water heat pump absorbs low-level heat in the air-conditioner chilled water system, the running water temperature of the air-conditioner chilled water is reduced, and therefore the running efficiency of the air-conditioner refrigerating host is improved, and the running cost and carbon emission of the air-conditioner refrigerating system can be reduced. The system has multiple functions of energy saving effect, obvious economic value and great popularization prospect.
Description
Technical Field
The utility model belongs to the technical field of refrigeration air conditioners and building water supply and drainage, and particularly relates to a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment.
Background
At present, in places such as hotels, coal-fired boilers, gas boilers or electric boilers are generally adopted to prepare domestic hot water, and the energy consumption is high. Therefore, how to save energy and reduce emission of a domestic hot water system, and obviously reduce the consumption of primary energy sources such as coal, petroleum, natural gas and the like, thereby obviously reducing carbon emission is an important problem to be solved at present.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment, which can effectively solve the problems.
The technical scheme adopted by the utility model is as follows:
the utility model provides a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment, which comprises a water-water heat pump (1), a heat exchanger (2), a mixed water preheating tank (3) and a volumetric heat exchanger heating tank (4);
the heat medium inlet of the water-water heat pump (1) is communicated with the return water side of chilled water of the air conditioner; the heat medium outlet of the water-water heat pump (1) is communicated with the chilled water supply side of the air conditioner; the cold medium inlet of the water-water heat pump (1) is communicated with the hot medium outlet of the heat exchanger (2); the cold medium outlet of the water-water heat pump (1) is communicated with the hot medium inlet of the heat exchanger (2); the cold medium inlet of the heat exchanger (2) is communicated with the first water outlet of the mixed water preheating tank (3); the cold medium outlet of the heat exchanger (2) is communicated with the first water inlet of the mixed water preheating tank (3); the second water inlet of the mixed water preheating tank (3) is communicated with cold water for supplementing water; the second water outlet of the mixed water preheating tank (3) is connected to the cold medium inlet of the heating tank (4) of the positive displacement heat exchanger; the cold medium outlet of the heating tank (4) of the positive displacement heat exchanger is communicated with a domestic hot water supply pipe; the heat medium inlet of the heating tank (4) of the positive displacement heat exchanger is communicated with the water outlet of the water heater; and a heat medium outlet of the heating tank (4) of the positive displacement heat exchanger is communicated with a water inlet of the water heater.
Preferably, a first water pump (5) is arranged on a pipeline between a heat medium inlet of the water-water heat pump (1) and the return water side of chilled water of the air conditioner.
Preferably, a second water pump (6) is arranged on a pipeline between the cold medium inlet of the water-water heat pump (1) and the hot medium outlet of the heat exchanger (2).
Preferably, a third water pump (7) is arranged on a pipeline between the cold medium inlet of the heat exchanger (2) and the first water outlet of the mixed water preheating tank (3).
The coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment provided by the utility model has the following advantages:
the utility model provides a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment, which absorbs low-level heat in an air conditioner chilled water system through a water-water heat pump, wherein the heat source is brought by indoor personnel, equipment and natural temperature, and the water-water heat pump unit is used for collecting the heat from the air conditioner system for heating domestic hot water, so that the use of primary energy sources such as gas and the like caused by heating the domestic hot water is effectively reduced, and the running cost and carbon emission of the system are obviously reduced. Because the water-water heat pump absorbs low-level heat in the air-conditioner chilled water system, the running water temperature of the air-conditioner chilled water is reduced, and therefore the running efficiency of the air-conditioner refrigerating host is improved, and the running cost and carbon emission of the air-conditioner refrigerating system can be reduced. The system has multiple functions of energy saving effect, obvious economic value and great popularization prospect.
Drawings
Fig. 1 is a schematic structural diagram of a coupled hot water system using chilled water heat recovery and gas heating apparatus according to the present utility model.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model provides a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment, which is characterized in that a water heat pump is used for absorbing low-level heat in an air conditioner chilled water system to provide a heat source for living hot water, and a gas water heater is arranged to provide a temperature rise of 5 ℃ for the living hot water, so that the water temperature meets the requirement of the living hot water system for supplying heat water. The mixed water preheating tank and the positive displacement heat exchanger heating tank are arranged in the system, the mixed water preheating tank stores heat drawn from chilled water of an air conditioner, the positive displacement heat exchanger heating tank heats the system and stores domestic hot water with a certain volume, and the water supply safety of the system is improved. Because the water-water heat pump absorbs low-level heat in the air-conditioner chilled water system, the running water temperature of the air-conditioner chilled water is reduced, and the running efficiency of the air-conditioner refrigerating host is improved.
The utility model provides a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment, referring to FIG. 1, the coupling hot water system comprises a water-water heat pump 1, a heat exchanger 2, a mixed water preheating tank 3 and a volumetric heat exchanger heating tank 4;
the heat medium inlet of the water-water heat pump 1 is communicated with the return water side of the chilled water of the air conditioner; the heat medium outlet of the water-water heat pump 1 is communicated with the chilled water supply side of the air conditioner; the cold medium inlet of the water-water heat pump 1 is communicated with the hot medium outlet of the heat exchanger 2; the cold medium outlet of the water-water heat pump 1 is communicated with the hot medium inlet of the heat exchanger 2; the cold medium inlet of the heat exchanger 2 is communicated with the first water outlet of the mixed water preheating tank 3; the cold medium outlet of the heat exchanger 2 is communicated with a first water inlet of the mixed water preheating tank 3; the second water inlet of the mixed water preheating tank 3 is communicated with cold water for supplementing water; the second water outlet of the mixed water preheating tank 3 is connected to the cold medium inlet of the heating tank 4 of the positive displacement heat exchanger; the cold medium outlet of the heating tank 4 of the positive displacement heat exchanger is communicated with a domestic hot water supply pipe; the heat medium inlet of the heating tank 4 of the positive displacement heat exchanger is communicated with the water outlet of the water heater; the heat medium outlet of the heating tank 4 of the positive displacement heat exchanger is communicated with the water inlet of the water heater.
A first water pump 5 is arranged on a pipeline between a heat medium inlet of the water-water heat pump 1 and the return water side of chilled water of the air conditioner. A second water pump 6 is installed in a pipeline between the cold medium inlet of the water-water heat pump 1 and the hot medium outlet of the heat exchanger 2. A third water pump 7 is arranged on a pipeline between the cold medium inlet of the heat exchanger 2 and the first water outlet of the mixed water preheating tank 3.
The utility model provides a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment, which has the working principle that:
the return water of the air-conditioning chilled water at the temperature of 12-21 ℃ is input into the water heat pump 1 as a heat medium, heat exchange occurs between the return water and the primary side water of the water heat pump 1, the return water of the air-conditioning chilled water at the temperature of 12-21 ℃ releases heat, the water supply of the air-conditioning chilled water at the temperature of 7-15 ℃ is obtained, and the return water is input into the water supply side of the air-conditioning chilled water, so that the water heat pump absorbs low-level heat in the air-conditioning chilled water system, the running water temperature of the air-conditioning chilled water is reduced, and the running efficiency of an air-conditioning refrigerating host is improved.
When the primary side water of the water-water heat pump 1 passes through the water-water heat pump 1, the primary side water exchanges heat with the chilled water of the air conditioner at the temperature of 12-21 ℃, the heat absorption temperature of the primary side water of the water-water heat pump 1 is increased, the temperature is increased from 45-50 ℃ to 51-55 ℃, then the heat is input into the heat medium inlet of the heat exchanger 2, heat exchange is carried out with the cold medium flowing through the heat exchanger 2, the primary side water of the water-water heat pump 1 releases heat, the temperature is reduced to 45-50 ℃, and the heat flows back to the water-water heat pump 1, so that the effect that the primary side water of the water-water heat pump 1 transfers the absorbed heat of the chilled water of the air conditioner to the cold medium of the heat exchanger 2 is realized, and the temperature of the cold medium of the heat exchanger 2 is increased.
The cold medium of the heat exchanger 2 is water output from the mixed water preheating tank 3, heat exchange is carried out on the cold medium and the water flowing through the heat exchanger 2 at the primary side of the water-water heat pump 1, the heat absorption temperature of the cold medium of the heat exchanger 2 is increased, the temperature is increased from 43-47 ℃ to 48-53 ℃, the cold medium is returned to the mixed water preheating tank 3, and the water is continuously circulated, so that the preheating effect of the water in the mixed water preheating tank 3 is realized, and the water temperature of the water in the mixed water preheating tank 3 is 48-53 ℃. Wherein, the water is supplemented by cold water with the temperature of 4-15 ℃ in the mixed water preheating tank 3.
The hot water of 48-53 ℃ output from the mixed water preheating tank 3 flows into the volumetric heat exchanger heating tank 4, is heated by auxiliary heat of a 70-95 ℃ heat pipe, and is heated to be domestic hot water of 60 ℃ so that the water temperature meets the requirement of the domestic hot water system for heating water temperature, thereby being conveyed to be the domestic hot water.
In addition, the backwater temperature of the domestic hot water is 55 ℃, and the domestic hot water also flows into the heating tank 4 of the positive displacement heat exchanger for heating and is output as the domestic hot water.
The utility model provides a coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment, which absorbs low-level heat in an air conditioner chilled water system through a water-water heat pump, wherein the heat source is brought by indoor personnel, equipment and natural temperature, and the water-water heat pump unit is used for collecting the heat from the air conditioner system for heating domestic hot water, so that the use of primary energy sources such as gas and the like caused by heating the domestic hot water is effectively reduced, and the running cost and carbon emission of the system are obviously reduced. Because the water-water heat pump absorbs low-level heat in the air-conditioner chilled water system, the running water temperature of the air-conditioner chilled water is reduced, and therefore the running efficiency of the air-conditioner refrigerating host is improved, and the running cost and carbon emission of the air-conditioner refrigerating system can be reduced. The system has multiple functions of energy saving effect, obvious economic value and great popularization prospect.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which is also intended to be covered by the present utility model.
Claims (4)
1. The coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment is characterized by comprising a water-water heat pump (1), a heat exchanger (2), a mixed water preheating tank (3) and a positive displacement heat exchanger heating tank (4);
the heat medium inlet of the water-water heat pump (1) is communicated with the return water side of chilled water of the air conditioner; the heat medium outlet of the water-water heat pump (1) is communicated with the chilled water supply side of the air conditioner; the cold medium inlet of the water-water heat pump (1) is communicated with the hot medium outlet of the heat exchanger (2); the cold medium outlet of the water-water heat pump (1) is communicated with the hot medium inlet of the heat exchanger (2); the cold medium inlet of the heat exchanger (2) is communicated with the first water outlet of the mixed water preheating tank (3); the cold medium outlet of the heat exchanger (2) is communicated with the first water inlet of the mixed water preheating tank (3); the second water inlet of the mixed water preheating tank (3) is communicated with cold water for supplementing water; the second water outlet of the mixed water preheating tank (3) is connected to the cold medium inlet of the heating tank (4) of the positive displacement heat exchanger; the cold medium outlet of the heating tank (4) of the positive displacement heat exchanger is communicated with a domestic hot water supply pipe; the heat medium inlet of the heating tank (4) of the positive displacement heat exchanger is communicated with the water outlet of the water heater; and a heat medium outlet of the heating tank (4) of the positive displacement heat exchanger is communicated with a water inlet of the water heater.
2. The coupled hot water system utilizing chilled water heat energy recovery and gas heating apparatus according to claim 1, wherein a first water pump (5) is installed in the pipeline between the heat medium inlet of the water heat pump (1) and the chilled water return side of the air conditioner.
3. The coupled hot water system with chilled water heat recovery and gas heating plant according to claim 1, characterized in that a second water pump (6) is installed in the pipeline between the cold medium inlet of the water heat pump (1) and the heat medium outlet of the heat exchanger (2).
4. The coupled hot water system using chilled water heat recovery and gas heating apparatus according to claim 1, wherein a third water pump (7) is installed in a pipeline between the cold medium inlet of the heat exchanger (2) and the first water outlet of the mixed water preheating tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321505639.6U CN220169550U (en) | 2023-06-13 | 2023-06-13 | Coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321505639.6U CN220169550U (en) | 2023-06-13 | 2023-06-13 | Coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220169550U true CN220169550U (en) | 2023-12-12 |
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ID=89054220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321505639.6U Active CN220169550U (en) | 2023-06-13 | 2023-06-13 | Coupling hot water system utilizing chilled water heat energy recovery and gas heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220169550U (en) |
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2023
- 2023-06-13 CN CN202321505639.6U patent/CN220169550U/en active Active
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