CN109163417A - Air source heat pump system - Google Patents
Air source heat pump system Download PDFInfo
- Publication number
- CN109163417A CN109163417A CN201810936925.5A CN201810936925A CN109163417A CN 109163417 A CN109163417 A CN 109163417A CN 201810936925 A CN201810936925 A CN 201810936925A CN 109163417 A CN109163417 A CN 109163417A
- Authority
- CN
- China
- Prior art keywords
- air
- pump system
- heat pump
- air source
- source heat
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides a kind of air source heat pump system, comprising: outdoor heat exchanger and air quantity adjust component；When the air source heat pump system is in normal heating working condition, the air quantity adjusts the surface that component is in first state and air-flow is made to flow through the outdoor heat exchanger；When the air source heat pump system is in defrosting working condition, the air quantity adjusts the surface that component is in the second state and air-flow is hindered to flow through the heat exchanger.And when air-source is in defrosting state, the component that keeps out the wind is in the second working condition, and outdoor heat exchanger and ambient enviroment is avoided to carry out too fast convection current, heat exchange, then reduces the heat-energy losses of outdoor heat exchanger during defrosting, improves the utilization efficiency of thermal energy.
Description
Technical field
The present invention relates to cooling and warming technical fields, and in particular to a kind of air source heat pump system.
Background technique
Air source heat pump system is the energy saver for making heat flow to high-order heat source from low level heat energy air using high potential.
As a kind of efficient, clean new energy use technology, air source heat pump system has been used as Winter heat supply system to use, and
Start to be applied in high latitude area.
Air source heat pump system includes compressor, throttle valve, indoor heat exchanger, outdoor heat exchanger and connection above-mentioned parts
Pipeline.When air source heat pump system works, outdoor heat exchanger is as the evaporator for making refrigerant evaporation absorb heat.
When dew-point temperature and dew-point temperature of the outdoor heat exchanger temperature lower than air are at 0 DEG C or less, outdoor heat exchanger
It surface can frosting；The frosting meeting of outdoor heat exchanger surface reduces heat pump system under same power so that its heat transfer effect deteriorates rapidly
Heat capacity, or even influence heat pump system normal system.In order to avoid the decline of heat exchange efficiency caused by frosting, air-source heat
Pumping system carries out defrosting operation in the serious frosting of outdoor heat exchanger.And in defrosting operation process, the work of outdoor heat exchanger
Temperature quickly increases, heat is rapidly lost with environment wind convective exchange, so that defrosting efficiency is lower.
Summary of the invention
The application provides a kind of air source heat pump system, to solve the technical issues of background technique refers to.
The application provides a kind of air source heat pump system, comprising: outdoor heat exchanger and air quantity adjust component；
When the air source heat pump system is in normal heating working condition, the air quantity adjusts component and is in first state
And air-flow is made to flow through the surface of the outdoor heat exchanger；When the air source heat pump system is in defrosting working condition, the wind
Amount adjusts the surface that component is in the second state and air-flow is hindered to flow through the heat exchanger.
Optionally, the air quantity adjusts air inlet side and/or the air outlet side that component is located at the outdoor heat exchanger.
Optionally, it includes louver assembly that the air quantity, which adjusts component,.
Optionally, when the air source heat pump system is in defrosting working condition, adjacent blinds in the louver assembly
Overlapping edges.
Optionally, it includes the Power Component for adjusting the louver assembly folding angle that the air quantity, which adjusts component,.
Optionally, the air source heat pump system includes wind direction test device；
The Power Component adjusts the folding angle of the louver assembly according to the wind direction that the wind direction test device measures.
Optionally, it includes weatherstrip window that the air quantity, which adjusts component,；
The weatherstrip window is plug-type weatherstrip window or flat-open type weatherstrip window.
Optionally, the flat-open type weatherstrip window is projecting top-hung window.
Optionally, the outdoor heat exchanger surface and/or it is internally provided with electric heating element.
Optionally, it includes draft fan that the air quantity, which adjusts component,.
Worked as at air source heat pump system in normal work using the application, air quantity adjusts component and is in the first working condition
And guarantee that the air-flow of big flow flows through the surface of outdoor heat exchanger, enable outdoor heat exchanger to absorb the heat in large flow-rate gas stream
Amount, and vapor is reduced in outdoor heat exchanger surface sweating or frosting by the air blast effect of air-flow.And at air-source
In the state of defrosting, air quantity adjusts component and is in the second working condition, avoids outdoor heat exchanger and ambient enviroment from carrying out too fast
Convection current, heat exchange then reduce the heat-energy losses of outdoor heat exchanger during defrosting, improve the utilization efficiency of thermal energy.
Detailed description of the invention
Fig. 1 is the signal when air source heat pump system outdoor section that a specific embodiment provides is in first state
Figure；
Fig. 2 is the signal when air source heat pump system outdoor section that a specific embodiment provides is in first state
Figure.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
The application specific embodiment provides a kind of air source heat pump system, and air source heat pump system is used for outdoor low temperature
Thermal energy accumulation, heating indoor environment in air.Specifically, air source heat pump system includes indoor heat exchanger, outdoor heat exchanger,
The pipeline of indoor heat exchanger and outdoor heat exchanger, the throttle valve being mounted in pipeline are connected, and is mounted on two realization in pipeline
The compressor of refrigerant compression.In air source heat pump system work, compressor is supplied after compressing high temperature refrigerant to indoor heat exchange
Device, after heat exchanger cooling indoors, compression refrigerant is throttled valve control and flows into outdoor heat exchanger, and evaporates and inhale in outdoor heat exchanger
Heat and accumulate thermal energy.
Other than with above-mentioned parts, the air source heat pump system that the application specific embodiment provides further includes that ventilation is adjusted
Regulating device；Draft regulator is mounted on outdoor, is adjusted for the ventilation state to outdoor heat exchanger.
Specifically, draft regulator includes the component that keeps out the wind.Working condition is normally heated when air source heat pump system is in,
I.e. there is no when frosting or lower frosting degree, the component that keeps out the wind is in first state and flows through air-flow on outdoor heat exchanger surface
The surface of outdoor heat exchanger makes outdoor heat exchanger and draft carry out heat exchange；And when air source heat pump system is in defrosting
When working condition, i.e., when outdoor heat exchanger surface serious frosting occurs and influences the normal work of heat pump system, keep out the wind component
The surface for being in the second state and air-flow being hindered to flow through heat exchanger.The component that keeps out the wind i.e. in the application specific embodiment, which has, to be adjusted
The effect for saving outdoor heat exchanger ventilation levels is then played the role of changing outdoor heat exchanger and ambient enviroment heat exchange efficiency.
At air source heat pump system in normal work, the component that keeps out the wind is in the first working condition and guarantees big flow
Air-flow flows through the surface of outdoor heat exchanger, enables outdoor heat exchanger to absorb the heat in large flow-rate gas stream, and pass through air-flow
Air blast effect and reduce vapor in outdoor heat exchanger surface sweating or frosting.And when air-source is in defrosting state,
The component that keeps out the wind is in the second working condition, avoids outdoor heat exchanger and ambient enviroment from carrying out too fast convection current, heat exchange, then subtracts
The heat-energy losses of outdoor heat exchanger, improve the utilization efficiency of thermal energy during few defrosting.
In concrete application, in order to during defrosting, so that outdoor heat exchanger heat loss is small as far as possible, outdoor heat exchange
The inside duct flows air-flow of device is small as far as possible, therefore the component that keeps out the wind can preferably make the air inlet of outdoor heat exchanger
It is all closed with air outlet, that is, the air inlet side of outdoor heat exchanger had both been arranged in the component that keeps out the wind, and was also disposed at outdoor heat exchanger
Air outlet side.
Certainly, in practical applications, as long as one of the air inlet of outdoor heat exchanger or air outlet mouth are closed, it can
Air-flow is reduced in the flowing of outdoor heat exchanger；Therefore, in the other embodiment of the application, air inlet can also be located at into setting
The component that keeps out the wind of mouth side or air outlet.
Fig. 1 is the signal when air source heat pump system outdoor section that a specific embodiment provides is in first state
Figure；Fig. 2 is the schematic diagram when air source heat pump system outdoor section that a specific embodiment provides is in first state.
As depicted in figs. 1 and 2, in the specific embodiment of the application, the component that keeps out the wind includes louver assembly 12；When
When air source heat pump system is in normal heating working condition, louver assembly 12 is opened, and is formed centainly between adjacent blinds
Gap then makes air-flow flow through outdoor heat exchanger 11；And when air source heat pump system is in defrosting state, louver assembly 12
It closes, the gap between adjacent blinds is smaller or does not have gap and air-flow is stopped to be flowed into the air duct of outdoor heat exchanger 11.
In a specific embodiment, the blinds of louver assembly 12 can be sized to following two states: (1) when
When louver assembly 12 is in closed state, the edge of adjacent blinds just reclines or with certain gap；(2) work as blinds
When component 12 is in closed state, the overlapping edges of adjacent blinds, then make between gap it is as small as possible.
In a preferred embodiment, clamping portion or clamping engagement portion can also be set at the edge of blinds；Work as blinds
When component 12 is in closed state, the clamping portion of blinds and the clamping engagement portion cooperation of another adjacent blinds and make adjacent
Blinds be connected as one, further reduce gap between adjacent blinds.
Of course, it should be noted that the component that keeps out the wind should also include installing in the case where the component that keeps out the wind includes louver assembly 12
The rotating shaft of the bracket of blinds, blinds hingedly cooperates with bracket.
In some embodiments, the component that keeps out the wind further includes Power Component；Power Component is for adjusting louver assembly
The folding angle of blinds in 12.In view of blinds quantity is more in louver assembly 12, in the application specific embodiment, power packages
Part includes driving motor and the connecting rod that connect with driving motor output end, the revolution axis connection of connecting rod and each louver assembly 12,
Each rotating shaft can be driven to rotate.The specific structure of link mechanism may refer to the prior art document and ability of machinery field
The existing procucts in domain, details are not described herein again.
In actual application environment, wind direction changes with the difference of season and weather conditions in outdoor environment, and only hundred
When leaf is adjusted to specific angle, the air-flow in outdoor environment could enter outdoor to flow as big as possible in wind movement
In the air duct of heat exchanger 11.And in order to improve air source heat pump system in normal work, the air mass flow of outdoor heat exchanger 11,
And the angle of louver assembly 12 can be adjusted according to wind direction, air source heat pump system further includes can be with direction measuring apparatus；Wind
It include wind vane and the angle detection part being connect with wind vane to measuring device；When the rotation of wind vane, angle detection
The angle of part measurement is different, so that the angle of the measurement of wind vane is also just different.Power Component can be according to direction measuring apparatus
The wind direction of measurement adjusts the angle of louver assembly 12, and blinds is then made to be in corresponding angle state.
In the present embodiment, position is arranged according to the position of outdoor heat exchanger 11 air inlet and air outlet in louver assembly 12 above-mentioned
It sets different and different；For example, the side of outdoor heat exchanger 11 is arranged in louver assembly 12 when outdoor heat exchanger 11 is horizontally disposed
Side；When outdoor heat exchanger 11 is vertically arranged, the upside of outdoor heat exchanger 11 is arranged in louver assembly 12.Herein, outdoor is changed
Hot device 11 is that horizontally disposed be perhaps vertically arranged refers to that the gas flow of outdoor heat exchanger 11 is horizontally disposed or sets vertically
It sets.
In addition, the blinds in louver assembly 12 can be horizontally disposed in concrete application, can also be vertically arranged, Huo Zhegen
It is arranged to other angles according to regular wind direction in installation environment.In practical application, it is contemplated that the rain and snow weather being likely to occur
Situation, the blinds in louver assembly 12 preferably use horizontally disposed mode.
In the air source heat pump system that the application specific embodiment provides, the component that keeps out the wind is in addition to may include above-mentioned hundred
It can also include weatherstrip window outside leaf component 12；Weatherstrip window can be set in the air inlet side of outdoor heat exchanger 11 or air outlet
Side.At air source heat pump system in normal operating conditions, weatherstrip window is in the open state；And at air source heat pump system
In the state of defrosting, weatherstrip window is in closed state and reduces the air-flow for flowing through outdoor heat exchanger 11.
In concrete application, weatherstrip window can be plug-type weatherstrip window or flat-open type weatherstrip window.Because of plug-type weatherstrip window
The space occupied is larger, therefore flat-open type weatherstrip window is preferably used in practical application.Also, in practical application, flat-open type keeps out the wind
Window preferably uses projecting top-hung window, to block solar radiation or sleet using it.In addition, in order to enable weatherstrip window can normally be beaten
It opens, the driving part so that weatherstrip window opening and closing can also be set.
In practical application, for an outdoor heat exchanger 11, the quantity of weatherstrip window can be a fan, is also possible to fan more,
To this application and it is not specifically limited.
In outdoor environment in the lesser situation of wind speed, the smaller, nothing using the distinguished and admirable throughput for blowing over outdoor heat exchanger 11
Method meets the heating capacity demand of air source heat pump system.Group of keeping out the wind to solve foregoing problems, in the application specific embodiment
Part can also include draft fan；When air source heat pump system works normally, draft fan work, certain driving air-flow flows through outdoor
Heat exchanger 11；And when air source heat pump system is in defrosting working condition, draft fan stops working.Specific embodiment
In, draft fan can be set between louver assembly 12 and outdoor heat exchanger 11.
In practical application, heat when air source heat pump system defrosts can be obtained using following two method: (1) being changed
The flow direction of refrigerant, making refrigerant, heat exchanger absorbs heat indoors, and discharges heat in outdoor heat exchanger 11.(2) in outdoor heat exchange
Electric heating element is arranged in 11 side of device, heats outdoor heat exchanger 11 using electric heating element.The shadow in order to avoid room temperature reduction
User's impression is rung, the electric heating element of heating outdoor heat exchanger 11 is preferably provided in the application specific embodiment.Specific implementation
In mode, electric heating element be can be set on the surface of outdoor heat exchanger 11, also can be set in the inside of outdoor heat exchanger 11；
It is arranged in the case where 11 surface of outdoor heat exchanger in electric heating element, insulating element should be also set, electric heating element is avoided
It leaks electricity and damages.
In addition, outdoor heat exchanger 11 can use finned heat exchanger commonly used in the art in practical application, can also adopt
With tubular exchanger or other kinds of heat exchanger.
It should also be noted that, the air source heat pump system itself that the application specific embodiment provides is an air-conditioning system
System is also used as air-conditioning system other than being used as air source heat pump system to use at low ambient temperatures under high temperature environment
It uses.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of air source heat pump system characterized by comprising outdoor heat exchanger and air quantity adjust component；
When the air source heat pump system is in normal heating working condition, the air quantity adjusts component and is in first state and makes
Air-flow flows through the surface of the outdoor heat exchanger；When the air source heat pump system is in defrosting working condition, the air quantity tune
Save the surface that component is in the second state and air-flow is hindered to flow through the heat exchanger.
2. air source heat pump system according to claim 1, it is characterised in that:
The air quantity adjusts air inlet side and/or the air outlet side that component is located at the outdoor heat exchanger.
3. air source heat pump system according to claim 1 or 2, it is characterised in that:
It includes louver assembly that the air quantity, which adjusts component,.
4. air source heat pump system according to claim 3, it is characterised in that:
When the air source heat pump system is in defrosting working condition, adjacent blinds overlapping edges in the louver assembly.
5. air source heat pump system according to claim 3, it is characterised in that:
It includes the Power Component for adjusting the louver assembly folding angle that the air quantity, which adjusts component,.
6. air source heat pump system according to claim 5, it is characterised in that:
The air source heat pump system includes wind direction test device；
The Power Component adjusts the folding angle of the louver assembly according to the wind direction that the wind direction test device measures.
7. air source heat pump system according to claim 1 or 2, it is characterised in that:
It includes weatherstrip window that the air quantity, which adjusts component,；
The weatherstrip window is plug-type weatherstrip window or flat-open type weatherstrip window.
8. air source heat pump system according to claim 7, it is characterised in that:
The flat-open type weatherstrip window is projecting top-hung window.
9. air source heat pump system according to claim 1 or 2, it is characterised in that:
The outdoor heat exchanger surface and/or it is internally provided with electric heating element.
10. air source heat pump system according to claim 1 or 2, it is characterised in that:
It includes draft fan that the air quantity, which adjusts component,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936925.5A CN109163417A (en) | 2018-08-16 | 2018-08-16 | Air source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936925.5A CN109163417A (en) | 2018-08-16 | 2018-08-16 | Air source heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109163417A true CN109163417A (en) | 2019-01-08 |
Family
ID=64896153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810936925.5A Pending CN109163417A (en) | 2018-08-16 | 2018-08-16 | Air source heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109163417A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165954A (en) * | 2020-09-11 | 2022-03-11 | 盾安环境技术有限公司 | Defrosting assembly, heat pump unit and defrosting method |
| CN114279071A (en) * | 2021-12-24 | 2022-04-05 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| CN114471835A (en) * | 2022-01-25 | 2022-05-13 | 山东省农业机械科学研究院 | Extrusion roller heat dissipation air box, air cooling heat dissipation device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002333242A (en) * | 2001-05-08 | 2002-11-22 | Kubota Corp | Vapor compression heat pump |
| CN202243495U (en) * | 2011-09-22 | 2012-05-30 | 中国北车集团大连机车车辆有限公司 | Air inflow adjusting device of ventilation system of locomotive |
| CN103743003A (en) * | 2014-01-26 | 2014-04-23 | 山东创尔沃热泵技术股份有限公司 | Air-conditioner outdoor unit hood with defrosting structure |
| CN107024034A (en) * | 2017-03-23 | 2017-08-08 | 北京国科天创建筑设计院有限责任公司 | A kind of net for air-source heat pump units for cold district |
| CN206755411U (en) * | 2017-04-24 | 2017-12-15 | 珠海格力电器股份有限公司 | Outdoor machine of air conditioner |
-
2018
- 2018-08-16 CN CN201810936925.5A patent/CN109163417A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002333242A (en) * | 2001-05-08 | 2002-11-22 | Kubota Corp | Vapor compression heat pump |
| CN202243495U (en) * | 2011-09-22 | 2012-05-30 | 中国北车集团大连机车车辆有限公司 | Air inflow adjusting device of ventilation system of locomotive |
| CN103743003A (en) * | 2014-01-26 | 2014-04-23 | 山东创尔沃热泵技术股份有限公司 | Air-conditioner outdoor unit hood with defrosting structure |
| CN107024034A (en) * | 2017-03-23 | 2017-08-08 | 北京国科天创建筑设计院有限责任公司 | A kind of net for air-source heat pump units for cold district |
| CN206755411U (en) * | 2017-04-24 | 2017-12-15 | 珠海格力电器股份有限公司 | Outdoor machine of air conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165954A (en) * | 2020-09-11 | 2022-03-11 | 盾安环境技术有限公司 | Defrosting assembly, heat pump unit and defrosting method |
| CN114279071A (en) * | 2021-12-24 | 2022-04-05 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| CN114471835A (en) * | 2022-01-25 | 2022-05-13 | 山东省农业机械科学研究院 | Extrusion roller heat dissipation air box, air cooling heat dissipation device and method |
| CN114471835B (en) * | 2022-01-25 | 2023-08-11 | 山东省农业机械科学研究院 | Extrusion roller heat dissipation bellows, air cooling heat dissipation device and method |
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Application publication date: 20190108 |
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