CN108240916B - First-class absorption heat pump unit testing device - Google Patents
First-class absorption heat pump unit testing device Download PDFInfo
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- CN108240916B CN108240916B CN201711452985.1A CN201711452985A CN108240916B CN 108240916 B CN108240916 B CN 108240916B CN 201711452985 A CN201711452985 A CN 201711452985A CN 108240916 B CN108240916 B CN 108240916B
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- condenser
- heat exchanger
- generator
- circulation pipeline
- pipeline
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
Abstract
the invention belongs to the technical field of heat pump unit testing, and particularly relates to a first-class absorption heat pump unit testing device. The device comprises an evaporator side circulation pipeline connected with an evaporator and a condenser side circulation pipeline connected with a condenser, wherein the evaporator side circulation pipeline is communicated with the condenser side circulation pipeline through a water mixing circulation pipeline. The testing device can fully utilize the heat generated during testing, and avoid waste of heat energy, thereby reducing the resource investment and the operation cost of the testing device and achieving the purpose of energy conservation.
Description
Technical Field
the invention belongs to the technical field of heat pump unit testing, and particularly relates to a first-class absorption heat pump unit testing device.
Background
The absorption heat pump is a circulating system which utilizes a low-grade heat source to pump heat from a low-temperature heat source to a high-temperature heat source, is an effective device for recycling low-temperature heat energy, and has double functions of saving energy and protecting the environment. The absorption heat pump can refrigerate and supply heat, so that the dual-purpose of one machine is realized, and along with the wide attention and use of the absorption heat pump in the industry and the air conditioning industry in recent years, the absorption heat pump also has higher requirements on a testing device of the absorption heat pump unit. The existing absorption heat pump unit testing device has the defects of high energy consumption, high operation cost, long debugging time and the like, and is easy to cause repeated investment of resources, so improvement is urgently needed.
Disclosure of Invention
In order to avoid and overcome the problems in the prior art, the invention provides a first type of absorption heat pump unit testing device. The testing device can fully utilize the heat generated during testing, and avoid waste of heat energy, thereby reducing the resource investment and the operation cost of the testing device and achieving the purpose of energy conservation.
in order to realize the purpose of the invention, the invention adopts the following technical scheme:
The utility model provides a first kind of absorption heat pump unit testing arrangement, includes the evaporimeter side circulation pipeline that is connected with the evaporimeter and the condenser side circulation pipeline that is connected with the condenser, evaporimeter side circulation pipeline and condenser side circulation pipeline are through mixing water circulation pipeline intercommunication, and this device still includes the generator side circulation pipeline that is connected with the generator, be equipped with the heat exchanger in the generator side circulation pipeline, the heat exchanger is connected the heat source, through the heat exchanger will get into the circulating water intensification of generator, generator side circulation pipeline is the closed circulation.
Preferably, an auxiliary heat exchanger is further arranged on the generator side circulation pipeline, the auxiliary heat exchanger is located between the heat exchanger and an outlet of the generator, and the auxiliary heat exchanger is further connected to the condenser side circulation pipeline and is arranged at an inlet close to the condenser.
Preferably, a hot water pump and a hot water flowmeter are sequentially connected in series on the generator side circulation pipeline from the heat exchanger to the inlet of the generator; a cooling water pump and a cooling water flowmeter are sequentially connected in series on the condenser side circulation pipeline from the outlet of the condenser to the inlet of the condenser; a cold water pump and a cold water flowmeter are sequentially connected in series between the outlet of the evaporator and the inlet of the evaporator on the circulating pipeline at the evaporator side; and the inlets and outlets of the generator, the condenser and the evaporator are respectively provided with a pressure detection device and a temperature detection device.
Preferably, valves for opening and closing the pipelines are arranged on the generator side circulating pipeline, the condenser side circulating pipeline and the evaporator side circulating pipeline.
Preferably, the heat exchanger and the auxiliary heat exchanger both adopt plate heat exchangers.
Preferably, the auxiliary heat exchanger is arranged on the condenser side circulation pipeline at a position between the cooling water pump and the inlet of the condenser; the hot water pump, the cooling water pump and the cold water pump are all variable frequency water pumps.
The beneficial effects of the invention are mainly embodied in the following aspects:
(1) The device comprises a generator side circulation pipeline which is in closed circulation, so that the pressure can be controlled automatically, under the condition, the simulation test of an absorption heat pump can be met, the device can also be used for testing the condition that the temperature of an inlet of the generator exceeds 90 ℃ (the boiling point of water serving as energy is improved by increasing the pressure in the pipeline), so that the water vapor generated in the generator has higher saturation temperature, the heat energy released by condensation is improved, the temperature of cooling water after condensation is increased, and the temperature of the cooling water after condensation is utilized (the temperature of the cooling water after evaporation is balanced by transferring the water into an evaporator through a water mixing circulation pipeline), so that the latent heat energy generated in the test is recycled to the maximum extent; in addition, a heat exchanger is arranged on the generator side circulating pipeline and connected with a heat source, circulating water flowing out of the generator is heated through the heat exchanger and serves as a driving heat source of the generator, and low-temperature heat energy is fully recycled on the premise that closed circulation of the generator side circulating pipeline is guaranteed, so that the input amount of the heat source is reduced.
(2) The invention is also provided with an auxiliary heat exchanger which is connected between the outlet of the generator and the heat exchanger and is positioned on the condenser side circulating pipeline close to the inlet of the condenser. According to the relevant standards of absorption heat pump units, the temperature of the outlet end of a generator in a tested heat pump unit is about 20 ℃, the temperature of cooling water at the outlet end of a condenser in a condenser side circulation pipeline is about 35 ℃, heat exchange is carried out between low-temperature outlet water and medium-temperature cooling water of the generator through the arrangement of an auxiliary heat exchanger, the temperature of the cooling water entering the condenser is reduced while the temperature of the circulating water flowing out of the generator is increased, the circulating water flowing out of the generator enters the heat exchanger after being heated and is heated by an upstream external heat source, and therefore the input of cold and heat sources is further reduced on the premise that the normal work of the heat pump unit is not influenced.
According to the invention, the low-temperature heat energy generated in the operation of the heat pump unit is fully recycled, the self-balance adjustment is fully realized, the waste of the heat energy is avoided, the repeated investment of resources is effectively avoided through the organic combination of different waterway test systems, the investment of the resources is further reduced, the operation cost is saved, and the purpose of saving energy is achieved.
(3) The testing device has remarkable energy-saving effect, all the water pumps are controlled by frequency conversion, the flow rate of circulating water is adjusted through the detection data of the flow meter, the requirements of different heat dissipation loads when different units are tested are met, and the testing device is convenient and practical; in addition, the auxiliary heat exchanger is arranged between the condenser inlet and the cooling water pump on the condenser side circulating pipeline, so that the temperature of cooling water can be conveniently controlled, the effect of the auxiliary heat exchanger is fully exerted, and the resource waste of low-temperature heat energy is further avoided.
(4) The heat exchanger and the auxiliary heat exchanger both adopt plate heat exchangers, and have the characteristics of high efficiency, energy conservation, convenient disassembly and assembly, compact structure and strong adaptability.
Drawings
FIG. 1 is a schematic structural view of the present invention without an auxiliary heat exchanger;
fig. 2 is a schematic structural view of the present invention with an auxiliary heat exchanger.
The reference numerals have the following meanings:
1-generator 2-condenser side circulation line 3-evaporator side circulation line
4-generator side circulation pipeline 5-heat exchanger 6.1-hot water pump 6.2-cooling water pump
6.3-cold water pump 7.1-hot water flowmeter 7.2-cooling water flowmeter 7.3-cold water flowmeter
8-pressure detection device 9-temperature detection device 10-auxiliary heat exchanger 11-valve
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.
Example 1
The first type of absorption heat pump is also called heat-increasing type heat pump. As shown in fig. 1, a first-class absorption heat pump unit testing device comprises an evaporator side circulation pipeline 3 connected with an evaporator and a condenser side circulation pipeline 2 connected with a condenser, wherein the evaporator side circulation pipeline 3 is communicated with the condenser side circulation pipeline 2 through a water adding circulation pipeline, the water adding circulation pipeline is provided with a water adding pump controlled by frequency conversion and a valve for controlling the opening and closing of the pipeline, the device further comprises a generator side circulation pipeline 4 connected with a generator 1, a heat exchanger 5 is connected in the generator side circulation pipeline 4, the heat exchanger 5 is connected with a heat source, circulating water entering the generator 1 is heated through the heat exchanger 5, namely low-temperature circulating water flowing out of the generator 1 is heated through the heat exchanger 5 and an upstream heat source and is used as a driving heat source of the generator 1 to drive the heat pump unit to run circularly, the generator-side circulation line 4 is a closed circulation.
As shown in fig. 1, a hot water pump 6.1 and a hot water flowmeter 7.1 are connected in series in sequence from the heat exchanger 5 to the inlet of the generator 1 on the generator side circulation pipeline 4; a cooling water pump 6.2 and a cooling water flowmeter 7.2 are sequentially connected in series between the outlet of the condenser and the inlet of the condenser on the condenser side circulation pipeline 2; a cold water pump 6.3 and a cold water flowmeter 7.3 are sequentially connected in series between the outlet of the evaporator and the inlet of the evaporator on the circulating pipeline 3 at the evaporator side; the hot water pump 6.1, the cooling water pump 6.2 and the cold water pump 6.3 are all variable frequency water pumps. The condenser side circulation pipeline 2 is connected with a cold source, a water inlet end of the cold source is arranged between the water adding circulation pipeline and the cooling water pump 6.2, and a water outlet end of the cold source is arranged close to an outlet of the condenser; and the inlets and outlets of the generator 1, the condenser and the evaporator are respectively provided with a pressure detection device 8 and a temperature detection device 9. According to the invention, the output of the frequency converters attached to the hot water pump 6.1, the cooling water pump 6.2 and the cold water pump 6.3 is controlled to respectively adjust the circulating water volume of each pipeline, the circulating water volume is respectively measured by the hot water flowmeter 7.1, the cooling water flowmeter 7.2 and the cold water flowmeter 7.3, the water inlet temperature of the generator 1 and the water inlet temperature of the condenser are adjusted by controlling the supply volume of cold and heat sources, and similarly, the water inlet temperature of the evaporator is adjusted by controlling the output of the frequency converter attached to the water mixing pump, so that the requirements of different heat dissipation loads when different units are tested are met.
Example 2
As shown in fig. 2, in addition to embodiment 1, an auxiliary heat exchanger 10 is further connected to the generator-side circulation line 4, the auxiliary heat exchanger 10 is located between the heat exchanger 5 and the outlet of the generator 1, and the auxiliary heat exchanger 10 is further connected to the condenser-side circulation line 2 and is disposed between the cooling water pump 6.2 and the inlet of the condenser. Through the arrangement, the low-temperature circulating water flowing out of the generator 1 enters the heat exchanger 5 after exchanging heat with the medium-temperature cooling water in the condenser side circulating pipeline 2 through the auxiliary heat exchanger 10 and is further heated by an upstream external heat source, so that the investment of the heat source is reduced undoubtedly, and the temperature of the cooling water is reduced after heat exchange, so that the investment of a cold source playing a role in balancing the temperature is reduced.
In the invention, valves 11 for opening and closing the pipelines are arranged on the generator side circulating pipeline 4, the condenser side circulating pipeline 2 and the evaporator side circulating pipeline 3, and in the embodiment, the valves 11 on the pipelines are positioned between the water pump and the flow meter on the pipelines.
The heat exchanger 5 and the auxiliary heat exchanger 10 both adopt plate heat exchangers.
Claims (5)
1. The utility model provides a first kind of absorption heat pump unit testing arrangement, includes evaporimeter side circulation pipeline (3) and condenser side circulation pipeline (2) that are connected with the evaporimeter be connected, evaporimeter side circulation pipeline (3) and condenser side circulation pipeline (2) through convert water circulation pipeline intercommunication, its characterized in that: the device also comprises a generator side circulating pipeline (4) connected with the generator (1), wherein a heat exchanger (5) is arranged in the generator side circulating pipeline (4), the heat exchanger (5) is connected with a heat source, circulating water entering the generator (1) is heated through the heat exchanger (5), and the generator side circulating pipeline (4) is in closed circulation;
Still be provided with auxiliary heat exchanger (10) on generator side circulation pipeline (4), auxiliary heat exchanger (10) are in between the export of heat exchanger (5) and generator (1), auxiliary heat exchanger (10) still connect in condenser side circulation pipeline (2), and set up in the entrance that is close to the condenser.
2. The first-class absorption heat pump unit testing device according to claim 1, wherein: a hot water pump (6.1) and a hot water flowmeter (7.1) are sequentially connected in series between the heat exchanger (5) and the inlet of the generator (1) on the generator side circulation pipeline (4); a cooling water pump (6.2) and a cooling water flowmeter (7.2) are sequentially connected in series between the outlet of the condenser and the inlet of the condenser on the condenser side circulating pipeline (2); a cold water pump (6.3) and a cold water flowmeter (7.3) are sequentially connected in series between the outlet of the evaporator and the inlet of the evaporator on the evaporator side circulation pipeline (3); and the inlets and outlets of the generator (1), the condenser and the evaporator are respectively provided with a pressure detection device (8) and a temperature detection device (9).
3. The first-class absorption heat pump unit testing device according to claim 2, wherein: and valves (11) for opening and closing the pipelines are arranged on the generator side circulating pipeline (4), the condenser side circulating pipeline (2) and the evaporator side circulating pipeline (3).
4. The first-class absorption heat pump unit testing device according to claim 2, wherein: the heat exchanger (5) and the auxiliary heat exchanger (10) both adopt plate heat exchangers.
5. The first-class absorption heat pump unit testing device according to claim 2, wherein: the auxiliary heat exchanger (10) is arranged on the condenser side circulation pipeline (2) and is positioned between the cooling water pump (6.2) and the inlet of the condenser; the hot water pump (6.1), the cooling water pump (6.2) and the cold water pump (6.3) are all variable frequency water pumps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711452985.1A CN108240916B (en) | 2017-12-28 | 2017-12-28 | First-class absorption heat pump unit testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452985.1A CN108240916B (en) | 2017-12-28 | 2017-12-28 | First-class absorption heat pump unit testing device |
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| CN108240916A CN108240916A (en) | 2018-07-03 |
| CN108240916B true CN108240916B (en) | 2019-12-10 |
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| CN201711452985.1A Active CN108240916B (en) | 2017-12-28 | 2017-12-28 | First-class absorption heat pump unit testing device |
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| CN111595603B (en) * | 2018-09-27 | 2021-12-14 | 合肥通用机械研究院有限公司 | Improved testing device for testing water chilling unit with heat recovery function |
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| CN101165430A (en) * | 2006-10-17 | 2008-04-23 | 珠海慧生能源技术发展有限公司 | Residual-heat reclamation type cold-hot water energy-saving machine set |
| CN102288421A (en) * | 2011-05-03 | 2011-12-21 | 合肥通用机械研究院 | Variable-volume water chiller set test device |
| CN102287968A (en) * | 2011-06-16 | 2011-12-21 | 齐齐哈尔轨道交通装备有限责任公司 | Circulating water waste heat recovery and comprehensive utilization system |
| CN205279505U (en) * | 2015-12-23 | 2016-06-01 | 双良节能系统股份有限公司 | Duplex condition direct combustion economic benefits and social benefits type lithium bromide absorption heat pump unit |
| CN107121299A (en) * | 2017-04-10 | 2017-09-01 | 新奥泛能网络科技股份有限公司 | The method for assessing bromine absorption type heat pump system and electric compression heat pump system performance |
| CN206804309U (en) * | 2017-01-23 | 2017-12-26 | 赤峰和然节能设备有限责任公司 | Absorption heat exchange device analogue test platform |
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2017
- 2017-12-28 CN CN201711452985.1A patent/CN108240916B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165430A (en) * | 2006-10-17 | 2008-04-23 | 珠海慧生能源技术发展有限公司 | Residual-heat reclamation type cold-hot water energy-saving machine set |
| CN102288421A (en) * | 2011-05-03 | 2011-12-21 | 合肥通用机械研究院 | Variable-volume water chiller set test device |
| CN102287968A (en) * | 2011-06-16 | 2011-12-21 | 齐齐哈尔轨道交通装备有限责任公司 | Circulating water waste heat recovery and comprehensive utilization system |
| CN205279505U (en) * | 2015-12-23 | 2016-06-01 | 双良节能系统股份有限公司 | Duplex condition direct combustion economic benefits and social benefits type lithium bromide absorption heat pump unit |
| CN206804309U (en) * | 2017-01-23 | 2017-12-26 | 赤峰和然节能设备有限责任公司 | Absorption heat exchange device analogue test platform |
| CN107121299A (en) * | 2017-04-10 | 2017-09-01 | 新奥泛能网络科技股份有限公司 | The method for assessing bromine absorption type heat pump system and electric compression heat pump system performance |
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