CN111964308A - Air source defrosting device - Google Patents
Air source defrosting device Download PDFInfo
- Publication number
- CN111964308A CN111964308A CN202010890188.7A CN202010890188A CN111964308A CN 111964308 A CN111964308 A CN 111964308A CN 202010890188 A CN202010890188 A CN 202010890188A CN 111964308 A CN111964308 A CN 111964308A
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- CN
- China
- Prior art keywords
- valve
- pipeline
- air source
- heat exchanger
- defrosting device
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air source defrosting device, and relates to the technical field of air source heat pumps. The heat exchanger comprises a compressor, a reversing valve, a heat exchanger, a phase change heat accumulator, a three-way valve, a throttle valve, an electromagnetic valve, a pipeline I, a pipeline II, a branch pipe and a circulating pipe, wherein the output end of the compressor is connected with the reversing valve through a pipeline, the output end of the reversing valve is respectively connected with the pipeline I and the pipeline II, the input end of the heat exchanger is fixedly connected with one end of the pipeline I, which is far away from the reversing valve, the three-way valve is connected and arranged at one end of the pipeline I, which is far away from the heat exchanger, the circulating. This air source defrosting device that defrosts, simple structure, dependable performance improve air source heat pump defrosting speed greatly, reduce the system energy consumption, can prolong the life of compressor and cross valve, improve the stability of system's operation, reduce cost and guarantee normal heating under the extremely cold weather in northern severe cold district winter.
Description
Technical Field
The invention relates to the technical field of air source heat pumps, in particular to an air source defrosting device.
Background
An air source heat pump is an energy-saving device which utilizes high-level energy to enable heat to flow from low-level heat source air to a high-level heat source, is a form of the heat pump, is as the name suggests, is the heat pump, namely, like a pump, and can convert low-level heat energy (such as heat contained in air, soil and water) which cannot be directly utilized into high-level heat energy which can be utilized, thereby achieving the purpose of saving part of high-level energy (such as coal, gas, oil, electric energy and the like), the heat pump is an energy-saving device which utilizes the high-level energy to enable the heat to flow from the low-level heat source to the high-level heat source, air is used as the low-level heat source of the heat pump, is inexhaustible, can be obtained everywhere, is convenient to install and use, and the research, production and application of the air source heat pump (also called as an air-cooled heat pump) in China are relatively fast developed only after the 80 th 20 th century, the current products comprise a household heat pump air conditioner, a commercial unit type heat pump air conditioning unit, a heat pump cold and hot water unit and the like.
During the operation of heating season, the demand heat is great, and the old defrosting system of air source heat pump frequently defrosts under the big condition of northern area severe cold temperature and humidity, causes very big influence to heating work in winter, and when ambient temperature is lower, and the defrosting comdenstion water is frozen in the water collector and is influenced unit normal operating.
At present, air source heat pump set's defrosting adopts the refrigerant switching-over to change the frost more, and the heat pump set ability of heating descends when the evaporimeter frosts, and when the evaporimeter frosted to the certain degree, the four-way switching-over valve switched to the operation of refrigeration operating mode, heats the evaporimeter, reaches the purpose of changing the frost, and can't guarantee the heating effect in winter in the north, and then lead to the result of use general, for this reason, provides an air source defrosting device and solves above-mentioned problem.
Disclosure of Invention
The invention provides an air source defrosting device which has the advantages of simple structure and reliable performance, greatly improves the defrosting speed of an air source heat pump and reduces the energy consumption of a system, and solves the problem that air source defrosting in the current market is not easy to remove.
In order to realize the purposes of simple structure, reliable performance, greatly improving the defrosting speed of the air source heat pump and reducing the energy consumption of the system, the invention provides the following technical scheme: the utility model provides an air source defrosting device that defrosts, includes compressor, switching-over valve, heat exchanger, phase change heat accumulator, three-way valve, choke valve, solenoid valve, pipeline one, pipeline two, branch pipe and circulating pipe, there is the switching-over valve output of compressor through the pipe connection, the switching-over valve output is connected with pipeline one and pipeline two respectively, the input of the one end fixedly connected with heat exchanger of keeping away from the switching-over valve is said, the one end connection of keeping away from the heat exchanger of way is provided with the three-way valve, the fixed circulating pipe that is provided with on the pipeline two, from last choke valve, phase change heat accumulator and the three-way.
As a preferable technical scheme of the invention, one end of the second pipeline, which is far away from the reversing valve, is fixedly connected with a three-way valve.
As a preferred technical solution of the present invention, three ports of the three-way valve are respectively connected with a first pipeline, a second pipeline and a branch pipe.
As a preferred technical scheme of the invention, the reversing valve is a four-way reversing valve and is positioned at the outlet end valve of the compressor.
As a preferable technical scheme of the invention, the branch pipe is fixedly connected with a circulating pipe, and the circulating pipe is U-shaped.
As a preferable technical scheme of the invention, the circulating pipe is fixedly provided with an electromagnetic valve, and the electromagnetic valve and the throttle valve are arranged in parallel.
As a preferable technical scheme of the invention, the heat exchanger is internally provided with a baffle plate and a conduit and is positioned between the reversing valve and the three-way valve.
Compared with the prior art, the invention provides an air source defrosting device, which has the following beneficial effects:
1. the air source defrosting device is simple in structure and reliable in performance, the defrosting speed of the air source heat pump is greatly increased, and the energy consumption of the system is reduced.
2. This air source defrosting device that defrosts can prolong the life of compressor and cross valve, improves the stability of system operation, reduce cost and guarantee normal heating under the extremely cold weather in northern severe cold district winter.
3. According to the air source defrosting device, when the phase change heat accumulator supplies heat in a forward circulation mode, part of redundant heat can be absorbed and stored, and the air source defrosting device can be supplemented and defrosted reversely in extremely cold weather.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of a connection system of the present invention;
in the figure: 1. a compressor; 2. a diverter valve; 3. a heat exchanger; 4. a phase change heat accumulator; 5. a three-way valve; 6. a throttle valve; 7. an electromagnetic valve; 8. a first pipeline; 9. a second pipeline; 10. a branch pipe; 11. a circulation pipe.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Also, some terms may be used in other meanings than orientation or positional relationship, for example, the term "on" may be used in some cases to indicate some sort of dependency or connection. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example (b):
referring to fig. 1, the invention discloses an air source defrosting device, which comprises a compressor 1, a reversing valve 2, a heat exchanger 3, a phase change heat accumulator 4, a three-way valve 5, a throttle valve 6, an electromagnetic valve 7, a first pipeline 8, a second pipeline 9, a branch pipe 10 and a circulating pipe 11, wherein the output end of the compressor 1 is connected with the reversing valve 2 through a pipeline, the output end of the reversing valve 2 is respectively connected with the first pipeline 8 and the second pipeline 9, one end of the first pipeline 8, which is far away from the reversing valve 2, is fixedly connected with the input end of the heat exchanger 3, one end of the first pipeline 8, which is far away from the heat exchanger 3, is connected with the three-way valve 5, the circulating pipe 11 is fixedly arranged on the second pipeline 9, the throttle valve 6, the phase change heat accumulator 4 and the three-way valve 5 are sequentially arranged on the circulating pipe 11 from top to, the air source heat pump defrosting system has the advantages that the air source heat pump defrosting system enters the indoor heat exchanger 3 of the indoor unit to be condensed and released to supply heat to the indoor, defrosting is carried out through the three-way valve 5, the air source heat pump defrosting system enters the phase change heat accumulator 4 to absorb part of heat stored in the heat accumulator to be coupled, the electromagnetic valves 7 are all closed, then, the refrigerant is throttled through the throttling part 6 to be changed into high temperature and high pressure, and finally, the refrigerant returns to the compressor through the three-way valve, so that defrosting of the system is finished.
As a specific optimization scheme of this embodiment, one end of the second pipe 9, which is far away from the reversing valve 2, is fixedly connected with a three-way valve 5.
As a specific optimization scheme of this embodiment, three ports of the three-way valve 5 are respectively connected with a first pipeline 8, a second pipeline 9 and a branch pipe 10.
As a specific optimization scheme of this embodiment, the reversing valve 2 is a four-way reversing valve, and the reversing valve 2 is located at an outlet end valve of the compressor 1.
As a specific optimization scheme of the embodiment, a circulation pipe 11 is fixedly connected to the branch pipe 10, and the circulation pipe 11 is U-shaped.
As a specific optimization scheme of the embodiment, the circulating pipe 11 is fixedly provided with the electromagnetic valve 7, and the electromagnetic valve 7 and the throttle valve 6 are arranged in parallel.
As a specific optimization scheme of this embodiment, a baffle plate and a conduit are arranged inside the heat exchanger 3, and the heat exchanger 3 is located between the reversing valve 2 and the three-way valve 5.
The working principle and the using process of the invention are as follows: when the defrosting device is used, when an air source heat pump system receives a defrosting instruction, a high-temperature and high-pressure refrigerant coming out of a compressor 1 enters an indoor heat exchanger 3 of an indoor unit through a four-way reversing valve 2 to be condensed and released to realize heat supply to the indoor, then is defrosted and defrosted through a three-way valve 5, enters a phase change heat accumulator 4 to absorb part of heat stored in the heat accumulator and is coupled, all electromagnetic valves 7 are closed, then the refrigerant is throttled by a throttling part 6 to be changed into high-temperature and high-pressure, and finally returns to the compressor through the three-way valve, so that frosting and defrosting of the system are completed, the defrosting device is simple in structure and reliable in performance.
The invention has the beneficial effects that:
1. the air source defrosting device is simple in structure and reliable in performance, the defrosting speed of the air source heat pump is greatly increased, and the energy consumption of the system is reduced.
2. This air source defrosting device that defrosts can prolong the life of compressor and cross valve, improves the stability of system operation, reduce cost and guarantee normal heating under the extremely cold weather in northern severe cold district winter.
3. According to the air source defrosting device, when the phase change heat accumulator supplies heat in a forward circulation mode, part of redundant heat can be absorbed and stored, and the air source defrosting device can be supplemented and defrosted reversely in extremely cold weather.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an air source defrosting device that defrosts, includes compressor (1), switching-over valve (2), heat exchanger (3), phase change heat accumulator (4), three-way valve (5), choke valve (6), solenoid valve (7), pipeline one (8), pipeline two (9), branch pipe (10) and circulating pipe (11), its characterized in that: the output of compressor (1) has switching-over valve (2) through the pipe connection, switching-over valve (2) output is connected with pipeline (8) and pipeline two (9) respectively, the input of the one end fixedly connected with heat exchanger (3) of switching-over valve (2) is kept away from in way (8), the one end connection of keeping away from heat exchanger (3) in way (8) is provided with three-way valve (5), fixed circulating pipe (11) that is provided with on pipeline two (9), from last choke valve (6), phase change heat accumulator (4) and the three-way valve (5) down having set gradually on circulating pipe (11).
2. The air source defrosting device according to claim 1, characterized in that: and one end of the second pipeline (9) far away from the reversing valve (2) is fixedly connected with a three-way valve (5).
3. The air source defrosting device according to claim 1, characterized in that: and three ports of the three-way valve (5) are respectively connected with a first pipeline (8), a second pipeline (9) and a branch pipe (10).
4. The air source defrosting device according to claim 1, characterized in that: the reversing valve (2) is a four-way reversing valve, and the reversing valve (2) is positioned at an outlet end valve of the compressor (1).
5. The air source defrosting device according to claim 1, characterized in that: the branch pipe (10) is fixedly connected with a circulating pipe (11), and the circulating pipe (11) is U-shaped.
6. The air source defrosting device according to claim 5, wherein: an electromagnetic valve (7) is fixedly arranged on the circulating pipe (11), and the electromagnetic valve (7) and the throttle valve (6) are arranged in parallel.
7. The air source defrosting device according to claim 1, characterized in that: the heat exchanger (3) is internally provided with a baffle plate and a conduit, and the heat exchanger (3) is positioned between the reversing valve (2) and the three-way valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890188.7A CN111964308A (en) | 2020-08-28 | 2020-08-28 | Air source defrosting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890188.7A CN111964308A (en) | 2020-08-28 | 2020-08-28 | Air source defrosting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111964308A true CN111964308A (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010890188.7A Pending CN111964308A (en) | 2020-08-28 | 2020-08-28 | Air source defrosting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111964308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024077990A1 (en) * | 2022-10-13 | 2024-04-18 | 广东美的白色家电技术创新中心有限公司 | Phase-change heat pump system and terminal device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338960A (en) * | 2008-08-13 | 2009-01-07 | 哈尔滨工业大学 | Continuous heat supply phase-change energy storage defrosting system |
| CN102809255A (en) * | 2012-08-22 | 2012-12-05 | 海尔集团公司 | Air conditioner defrosting system and defrosting method |
| CN205027016U (en) * | 2015-09-22 | 2016-02-10 | 苏州工业园区瀚科机器制造有限公司 | Two return circuit heat accumulation defrosting type heat pumps |
| CN106288484A (en) * | 2016-08-16 | 2017-01-04 | 东北电力大学 | A kind of air source heat pump system and defrosting control method thereof |
| CN106288562A (en) * | 2016-08-16 | 2017-01-04 | 东北电力大学 | The defrosting of a kind of air source heat pump system controls devices and methods therefor |
| CN206540334U (en) * | 2017-02-20 | 2017-10-03 | 魏志民 | Solar heat-preservation type air source heat pump defrosting system |
| CN206600950U (en) * | 2017-03-02 | 2017-10-31 | 力诺瑞特（上海）新能源有限公司 | A kind of air source heat pump defrosting system |
-
2020
- 2020-08-28 CN CN202010890188.7A patent/CN111964308A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338960A (en) * | 2008-08-13 | 2009-01-07 | 哈尔滨工业大学 | Continuous heat supply phase-change energy storage defrosting system |
| CN102809255A (en) * | 2012-08-22 | 2012-12-05 | 海尔集团公司 | Air conditioner defrosting system and defrosting method |
| CN205027016U (en) * | 2015-09-22 | 2016-02-10 | 苏州工业园区瀚科机器制造有限公司 | Two return circuit heat accumulation defrosting type heat pumps |
| CN106288484A (en) * | 2016-08-16 | 2017-01-04 | 东北电力大学 | A kind of air source heat pump system and defrosting control method thereof |
| CN106288562A (en) * | 2016-08-16 | 2017-01-04 | 东北电力大学 | The defrosting of a kind of air source heat pump system controls devices and methods therefor |
| CN206540334U (en) * | 2017-02-20 | 2017-10-03 | 魏志民 | Solar heat-preservation type air source heat pump defrosting system |
| CN206600950U (en) * | 2017-03-02 | 2017-10-31 | 力诺瑞特（上海）新能源有限公司 | A kind of air source heat pump defrosting system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024077990A1 (en) * | 2022-10-13 | 2024-04-18 | 广东美的白色家电技术创新中心有限公司 | Phase-change heat pump system and terminal device |
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Application publication date: 20201120 |
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