CN106288483B - A kind of method of air conditioner and raising air conditioner heat-production effect - Google Patents
A kind of method of air conditioner and raising air conditioner heat-production effect Download PDFInfo
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- CN106288483B CN106288483B CN201610628910.3A CN201610628910A CN106288483B CN 106288483 B CN106288483 B CN 106288483B CN 201610628910 A CN201610628910 A CN 201610628910A CN 106288483 B CN106288483 B CN 106288483B
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- heat exchanger
- air conditioner
- temperature
- outdoor heat
- heating
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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
-
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/01—Heaters
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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
- F25B2500/00—Problems to be solved
- F25B2500/31—Low ambient temperatures
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to air-conditioning technical fields, disclose the method for a kind of air conditioner and raising air conditioner heat-production effect, the air conditioner includes being sequentially connected by pipeline to form the indoor heat exchanger of refrigerant circulation circuit (2), outdoor heat exchanger (4) and compressor (1), and the air conditioner further includes the heating device heated before it enters the compressor (1) for the refrigerant of the outlet output to the outdoor heat exchanger (4).The heating performance of air conditioner used under low temperature condition device can be improved in air conditioner provided by the invention and the method for improving air conditioner heat-production effect.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular, to a kind of side of air conditioner and raising air conditioner heat-production effect
Method.
Background technique
In heating operation, by outdoor heat exchanger and outdoor air heat exchange occurs air conditioner for refrigerant, from outdoor sky
Aspiration heat and evaporate, into compressor, through compressor compresses at the refrigerant vapor of high temperature and pressure, enter the room heat exchanger
Heat release；Heat is released come heating indoor air by indoor heat exchanger, and people is made to enjoy pleasant environment.
When outdoor environment temperature declines to a certain extent and humidity is suitable for, the meeting frosting of outdoor heat exchanger surface, with
Frost layer is more and more thicker, and the using effect of air-conditioning system further can influence its heating performance and air-conditioning uses worse and worse
Comfort.
In order to improve the heating performance of air conditioner, need to defrost to outdoor heat exchanger, air conditioner generally utilizes pressure
The delivery temperature of contracting machine carries out hot gas defrosting.This just needs to carry out compressor four-way valve and switches over and could defrost, and is starting to remove
When white, four-way reversing valve commutation makes outdoor heat exchanger heat release, and indoor heat exchanger heat absorption, this will cause indoor environment temperature
It reduces, in colder environment, air conditioner runs refrigeration cycle, will lead to that room temperature is sometimes hot and sometimes cold, to cause user's
Sense of discomfort；In addition, air humidity is bigger in some areas, frequent defrost operation will affect four-way valve and other electrical parts
Service life, moreover, because refrigerant from the lower part of outdoor heat exchanger flow into, top outflow, therefore, outdoor heat exchanger
The frosting of lower part is heavier, and when defrosting, the lower part frosting of outdoor heat exchanger is more difficult cleared, must when in upper part, defrosting is finished
Need wait until partially to defrost under outdoor heat exchanger can be completed at the same time defrosting completely and enter normal heating operation state,
Thus a part of heat is wasted, and extends defrosting process, reduces the overall heating effect of air conditioner.
In view of the drawbacks described above in the presence of the prior art, it is necessary to a kind of new technical solution is provided, to improve low temperature
The heating performance of air conditioner under environment.
Summary of the invention
The object of the present invention is to provide a kind of air conditioners, for improving the heating of the air conditioner under cryogenic
Energy.
To achieve the goals above, the invention provides the following technical scheme:
The first aspect of the present invention provides a kind of air conditioner, including is sequentially connected by pipeline to form refrigerant circulation circuit
Indoor heat exchanger, outdoor heat exchanger and compressor, the air conditioner further includes for the outdoor heat exchanger
Export the heating device that the refrigerant of output is heated before it enters the compressor.
Preferably, the heating device includes being heated for the pipeline section in the exit to the outdoor heat exchanger
Hollow heat dissipation element, outlet or institute of the one end of the hollow heat dissipation element by the first communicating pipe and the indoor heat exchanger
It states the pipe section connection between the outlet of indoor heat exchanger and the import of the outdoor heat exchanger and forms the first connection
Point, the outlet and the outdoor heat that the other end passes through the second communicating pipe and the outdoor heat exchanger or the indoor heat exchanger
Pipe section connection between the import of exchanger and form the second tie point, wherein first tie point is relative to described the
Two tie points are closer to the outlet of the indoor heat exchanger；And
It is equipped with first communicating pipe for the control valve of the first communicating pipe described in on-off and for heating described the
The heating element of the pipeline section part between the control valve and the hollow heat dissipation element of a connecting pipe.
Preferably, the hollow heat dissipation element is helix tube, and the helix tube is wrapped in the outdoor heat exchanger outlet
Pipe section periphery.
Preferably, the hollow heat dissipation element is set in the housing, the shell include inside heat-conducting layer and outside every
Thermosphere, the hollow heat dissipation element are set between the heat-conducting layer and the thermal insulation layer.
Preferably, the air conditioner further includes that the temperature of the refrigerant temperature for detecting the exit of outdoor heat exchanger passes
Sensor, the temperature sensor and the equal signal of the control valve are connected to control unit, so that described control unit being capable of root
Opening or closing for the control valve is controlled according to the detection signal of the temperature sensor.
Preferably, described control unit also signal connects heating element, so that described control unit can be according to the temperature
Spend the heating power of heating element described in the detection Signal Regulation of sensor.
Preferably, on the pipe section between the outlet and the import of the outdoor heat exchanger of the indoor heat exchanger
It is provided with first throttle element, and second communicating pipe is equipped with the second restricting element.
Preferably, the air conditioner further includes the output for detecting second communicating pipe at second tie point
First temperature detecting element of refrigerant temperature and for detecting the defeated of the indoor heat exchanger at second tie point
The second temperature detecting element of refrigerant temperature out, first temperature detecting element, the second temperature detecting element and institute
It states the equal signal of the second restricting element and is connected to described control unit, so that described control unit can be examined according to first temperature
It surveys the detection signal of element and the detection signal of the second temperature detecting element and controls the aperture of second restricting element.
Air conditioner provided by the invention has the following beneficial effects:
Air conditioner provided by the invention has heating device, and the heating device is described for lower in outdoor environment temperature
When air conditioner is in heating mode, to the outdoor heat exchanger outlet output refrigerant its enter the compressor advance
Row heating, by the heating device, technical solution provided by the invention can be in heating by lower, air conditioner in outdoor environment temperature
When mode and the frosting of outdoor heat exchanger surface, the temperature of the refrigerant from the outlet output of outdoor heat exchanger is improved, so as to
To improve the heating performance of air conditioner under low temperature environment.
The second aspect of the present invention provides a kind of method for improving air conditioner heat-production effect, which comprises
In outlet refrigerant temperature≤first anticipation temperature value of outdoor heat exchanger, the outdoor heat exchanger is heated
Export refrigerant；
In outlet refrigerant temperature >=second anticipation temperature value of the outdoor heat exchanger, stop the heating outdoor heat
The outlet refrigerant of exchanger；
Wherein, the first anticipation temperature value is lower than the second anticipation temperature value.
Preferably, the method also includes:
It is more than preset time value between when heated, and the variable quantity of the outlet refrigerant temperature of the outdoor heat exchanger is lower than
When preset temperature value, heating power is improved.
Preferably, the preset time value is 1 minute, and the preset temperature value is any one temperature between 2 DEG C -3 DEG C
Value.
Preferably, the first anticipation temperature value is any one temperature value between ± 1 DEG C, the second anticipation temperature value
For any one temperature value between 6 DEG C -8 DEG C.
Preferably, the method is realized with above-described air conditioner.
The method provided by the invention for improving air conditioner heat-production effect has the following beneficial effects:
The method provided by the invention for improving air conditioner heat-production effect can be when ambient temperature be lower, described in heating
The outlet refrigerant of outdoor heat exchanger；So as to improve the heating performance of air conditioner used under low temperature condition device.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of air conditioner provided in an embodiment of the present invention.
Description of symbols
1- compressor；2- indoor heat exchanger；
3- first throttle element；4- outdoor heat exchanger；
5- control valve；6- heating element；
The hollow heat dissipation element of 7-；The second restricting element of 8-；
First communicating pipe of 9-；Second communicating pipe of 10-.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Referring to Fig. 1, the first aspect of the embodiment of the present invention provides a kind of air conditioner, including by pipeline be sequentially connected with
Formed refrigerant circulation circuit indoor heat exchanger 2, outdoor heat exchanger 4 and compressor 1, the air conditioner further include for pair
The heating device that the refrigerant of the outlet output of the outdoor heat exchanger 4 is heated before it enters the compressor 1.It needs
Illustrate, the refrigerant circulation circuit refers to refrigerant circulation circuit when air conditioner is in heating mode.The outdoor heat
When the outlet of exchanger 4 refers to that air conditioner is in heating mode, refrigerant flows out to compressor 1 from the outdoor heat exchanger 4
Outlet.Specifically, the indoor heat exchanger 2, the outdoor heat exchanger 4 and the compressor 1 all have be respectively used to it is cold
The inlet and outlet of matchmaker's disengaging.It is lower in ambient temperature, when the air conditioner is in heating mode, the compressor 1
Outlet be connected with the import of indoor heat exchanger 2, the indoor heat exchanger 2 export and the outdoor heat exchanger 4 into
Mouth is connected, and the outlet of the outdoor heat exchanger 4 is connected with the import of the compressor 1, at this point, the outdoor heat exchanger 4
Heat exchange occurs for interior liquid refrigerants and outdoor air, absorbs heat from outdoor air and evaporates, into compressor 1, through compressing
Machine 1 is compressed into the refrigerant vapor of high temperature and pressure, enters the room 2 heat release of heat exchanger；By indoor heat exchanger 2 release heat come
Heating indoor air.
The heating device is for lower in outdoor environment temperature, when the air conditioner is in heating mode, to the room
The refrigerant of the outlet output of outer heat-exchanger 4 is heated before it enters the compressor 1, passes through the heating device, this hair
It is lower in outdoor environment temperature that the above-mentioned technical proposal that bright embodiment provides can be improved air conditioner, 4 surface of outdoor heat exchanger knot
Heating performance when white, in this case, 1 four-way valve of compressor is unnecessary to switch over defrosting, to improve user low
The comfort level that air conditioner is used under warm environment, also avoids four-way valve frequent switching and its own and other electrical parts is caused to use
The defect of the lost of life, and avoid caused by 4 surface frosting of outdoor heat exchanger is uneven defrosting process it is too long due to generate
Thermal loss.
In above-described embodiment, the structure of the heating device can be a variety of, for example, the heating device can be to be mounted on
Electrical heating elements on the pipeline section in the exit of the outdoor heat exchanger 4, such as resistance wire, electrothermal tube, electric hot plate etc. can be with
Electrical heating elements described in plant-grid connection in control circuit board in the air conditioner are made the electrical heating elements be powered to send out
Heat after the electrical heating elements fever, can heat the refrigerant from the outlet outflow of the outdoor heat exchanger 4, to improve institute
State the heating performance of air conditioner.
The inventor of present specification has found under study for action, and since the position of electrical heating elements is fixed, electrical heating elements are logical
When electric, quantity of heat production is larger, and in this case, the electrical heating elements heat after energization is more concentrated, and electrical heating elements often occurs
After power-off, refrigerant temperature continue rise the case where, therefore, it is difficult to realize accurately controlling for refrigerant temperature, cause heat loss and
Waste.
In order to control the refrigerant temperature from the outlet of outdoor heat exchanger 4 outflow more accurately, heat is more efficiently utilized
Amount, saves resource and cost, embodiment as one preferred, and the heating device includes being used for the outdoor heat exchanger 4
Exit the hollow heat dissipation element 7 that is heated of pipeline section, one end of the hollow heat dissipation element 7 passed through for the first communicating pipe 9
The outlet of outlet or the indoor heat exchanger 2 with the indoor heat exchanger 2 and the import of the outdoor heat exchanger 4 it
Between pipe section connection and form the first tie point, the other end by second communicating pipe 10 and the outdoor heat exchanger 4 or
Pipe section connection and formation second between the outlet of the indoor heat exchanger 2 and the import of the outdoor heat exchanger 4
Tie point, wherein first tie point connects relative to second tie point closer to the outlet of the indoor heat exchanger 2
It connects；And
It is equipped with first communicating pipe 9 for the control valve of the first communicating pipe 9 described in on-off and described for heating
The heating element 6 of the pipeline section part of first communicating pipe 9 between control valve and the hollow heat dissipation element 7.
The heating device is set as hollow heat dissipation element 7, and therefore, one end of the hollow heat dissipation element 7 can pass through
First communicating pipe 9 and the outlet of indoor heat exchanger 2 or outlet and the outdoor heat exchanger 4 of the indoor heat exchanger 2
Import between pipe section be connected to and in communication with, the other end can pass through second communicating pipe 10 and the outdoor heat exchanger 4
Or the indoor heat exchanger 2 outlet and the outdoor heat exchanger 4 import between pipe section be connected to and in communication with, by
This, the first communicating pipe 9, hollow heat dissipation element 7 and the second communicating pipe 10 can form coolant path.Also, due to described first
Tie point relative to second tie point closer to the outlet of the indoor heat exchanger 2, in this way, in air conditioner heat-production mode
Under, the pressure of the first tie point is higher than the pressure of the second tie point, will form pressure between the first tie point and the second tie point
Difference, this pressure difference can drive refrigerant constantly to enter from the first tie point, and via the first communicating pipe 9, hollow heat dissipation member
Part 7 and after the second communicating pipe 10 is flowed out from the second tie point, forms refrigerant circulation flow passage.
It is equipped with first communicating pipe 9 for the control valve of the first communicating pipe 9 described in on-off and described for heating
The heating element 6 of the pipeline section part of first communicating pipe 9 between control valve and the hollow heat dissipation element 7.In this way, when outer
Portion's environment temperature is lower, and need to the outdoor heat exchanger 4 export outflow refrigerant heated when, can control described
Control valve is opened, at this point, refrigerant flows into the first communicating pipe 9 through the first tie point, heats the control with the heating element 6
The pipeline section part of first communicating pipe 9 between valve and the hollow heat dissipation element 7, in this way, refrigerant is entering hollow heat dissipation
It is heated up before element 7, and in hollow heat dissipation element 7, is radiated by hollow heat dissipation element 7, and transfer heat to
The refrigerant of the outlet output of outdoor heat exchanger 4.
When ambient temperature is higher, does not need to heat the refrigerant of the outlet of outdoor heat exchanger 4 output, then turn off
The control valve, heating element 6 stop heating, and hollow heat dissipation element 7 does not play heat effect.
Above-mentioned heating device has the hollow heat dissipation element 7 for being heated refrigerant to outdoor heat exchanger 4 using internal flow
Output refrigerant is heated, due to the refrigerant circulation flowing in hollow heat dissipation element 7, it is thereby achieved that preferable heat returns
It receives and utilizes, save resource and cost.
In addition, the refrigerant steam exported using the refrigerant heating outdoor heat exchanger 4 of flowing, can also prevent heat excessively
Outdoor heat exchanger 4 exports the uncontrollable problem of refrigerant temperature caused by concentration.
In addition, the pipeline section in the exit using heating devices heat outdoor heat exchanger 4, can also improve outdoor heat exchange
Therefore environment temperature around device 4 can delay 4 outside frosting of outdoor heat exchanger, to further increase the system of air conditioner
Hot property.
In view of the refrigerant in the first communicating pipe 9 is after being heated element 6 and heating, need to flow within the first communicating pipe 9
Just it can enter hollow heat dissipation element 7 after a distance, in order to the heat that heating element 6 provides more is used for hollow heat dissipation member
Part 7 radiates, can the pipeline section portion of external of the first communicating pipe 9 between heating element 6 and hollow heat dissipation element 7 wrap up one layer
Insulating layer, for reducing thermal loss of the refrigerant after heating when the pipeline section part is flowed, to save resource and cost.
Wherein, the heating element 6 can be electric heater, power for convenience to electric heater, power supply can
To use the power supply on air conditioner inner control circuit plate, since the carrying load ability of the power supply in control circuit board has
Limit, therefore, electric heater can use small power electric heater, such as the electric heater of 500W-1000W.In addition, using small function
Rate electric heater can also save resource and cost.
The structure of the hollow heat dissipation element 7 can there are many, for example, the hollow heat dissipation element 7 can be heat-dissipating pipe,
Specifically, the material of the heat-dissipating pipe can there are many, for example, aluminium-alloy pipe, copper pipe etc., in order to improve the heat exchange of heat-dissipating pipe
Efficiency, it is preferred that the heat-dissipating pipe can be copper pipe.The shape of the heat-dissipating pipe can also there are many, such as it is straight pipe, U-shaped
Pipe, the pipeline of helix tube or other arbitrary shapes.In view of the pipe in actual conditions, between outdoor heat exchanger 4 and compressor 1
Facilitate the length of pipe section for installing hollow heat dissipation element 7 limited in section, under normal circumstances, only 10cm or so, in order to limited
On length of pipe section, refrigerant is preferably heated, it is preferred that the heat-dissipating pipe is helix tube, in this way, in identical pipeline section installation length
Under, helix tube has longer refrigerant flow path relative to the pipeline of other shapes, so as to improve hollow heat dissipation element 7
Heat dissipation capacity, with preferably heat outdoor heat exchanger 4 outlet output refrigerant.In addition, helix tube is wrapped in outdoor heat
The pipe section periphery that exchanger 4 exports, in this way, helix tube is closer at a distance from pipeline, contact area is bigger and more uniform,
Refrigerant effectively heat so as to more uniform.
In order to further increase the uniformity that the hollow heat dissipation element 7 heats refrigerant, the hollow heat dissipation element 7 is set
In in shell.The hollow heat dissipation element 7 is set in the housing, so that the hollow heat dissipation element 7 can give the room by shell
The pipeline section in the exit of outer heat-exchanger 4 is heated, and the shell is for hollow heat dissipation element 7, with the outdoor
The contact area of the pipeline section in 4 exit of heat exchanger is bigger, so as to improve the output refrigerant to the outdoor heat exchanger 4
The uniformity of heating.The structure of the shell can there are many, embodiment as one preferred, the shell include inside
The thermal insulation layer of heat-conducting layer and outside, the heat-conducting layer are located inside, that is, the heat-conducting layer is closer to relative to thermal insulation layer
The pipeline in 4 exit of outdoor heat exchanger, the heat so as to distribute the hollow heat dissipation element 7 quickly pass to
The pipeline in 4 exit of outdoor heat exchanger improves heat exchanger effectiveness, and improves the output to the outdoor heat exchanger 4
The heating uniformity of refrigerant, further, the heat-conducting layer can be pasted with the pipeline outer wall in 4 exit of outdoor heat exchanger
It closes, so as to further increase the heat exchanger effectiveness of heat-conducting layer.The thermal insulation layer is located at outside, so as to reduce in described
Empty heat dissipation element 7 is dispersed into the heat in outside air, i.e. reduction thermal loss, preferably saving resource and cost.
In order to further increase the radiating efficiency of hollow heat dissipation element 7, limited between the heat-conducting layer and the thermal insulation layer
Out for accommodating the accommodation space of hollow heat dissipation element 7, thus, it is possible to increase the heat-conducting layer and the hollow heat dissipation element 7
Heat exchange area, and then can be further improved the radiating efficiency of the hollow heat dissipation element 7, more efficiently to heat institute
State the refrigerant of the output of outdoor heat exchanger 4.Preferably, the shape of the accommodation space is identical as the shape of hollow heat dissipation element 7,
For example, then accommodation space can be spiral groove, thus, it is possible to further increase institute when hollow heat dissipation element 7 is helix tube
The contact area of hollow heat dissipation element 7 and heat-conducting layer is stated, to preferably heat the refrigerant that the outdoor heat exchanger 4 exports.
Specifically, when the hollow heat dissipation element 7 is helix tube, the heat-conducting layer and the thermal insulation layer all can be in
Hollow cylinder, the heat-conducting layer is same to be located in the thermal insulation layer, and can be set out on the outer circumference surface of the heat-conducting layer
The first groove of helical form of mouth outwardly, the inner peripheral surface of the thermal insulation layer are equipped with the second groove of helical form of opening inwardly, institute
It is opposite with the opening of second groove to state the first groove, so that the accommodation space for accommodating the helix tube is limited, by
This, the helix tube is installed in the shell in which can be convenient, while also increasing the helix tube and the heat-conducting layer
Contact area.Optionally, for the ease of processing, the cross section of the helix tube can be circle, first groove it is transversal
Face and the cross section of second groove can be processed as the semicircle that the outer diameter of size and the helix tube matches, thus
When the helix tube is mounted in the space that the first groove and the second groove are formed, the helix tube can be affixed with heat-conducting layer
It closes, the contact area of the helix tube and heat-conducting layer is further increased, to improve the heat transfer efficiency of helix tube.Certainly,
In order to increase the contact area of the helix tube Yu the heat-conducting layer, it is recessed that the depth of first groove can be greater than described second
The depth of slot.
In order to improve the heat transfer efficiency of the heat-conducting layer and/or the hollow heat dissipation element 7, to realize to the outdoor heat
The pipeline in 4 exit of exchanger carries out rapid and uniform heating, and the heat-conducting layer and/or the hollow heat dissipation element 7 use heat-conducting type
Continuous carbon fibre enhances polymer matrix composite (Carbon Fiber Reinforced Polymer/Plastic, abbreviation
CFRP it) is made, the heat-conducting type continuous carbon fibre enhancing polymer matrix composite is by enhanced thermal conduction material, particle filler and base
Body Material cladding is made.Wherein, the enhanced thermal conduction material can use continuous gas-phase growth of carbon fibre (Vapor-grown
Carbon fiber abbreviation VGCF), thermal conductivity has certain mechanical property up to 5 times of copper, and described matrix material can be with
Using the polypropylene (Polypropylene, abbreviation PP) of good mechanical performance, particle filler can be splendid using heating conduction
Graphene nanometer sheet (Graphene Nanoplatelets, guide number Ps), thermal conductivity is led up to 13 times of copper to improve
The radial heat conductivity of thermosphere；In order to greatly improve the heating conduction of composite material, and significantly reduce the mechanical property of composite material
It can, it is preferred that the mass content of basis material can be 65% in composite material, and the mass content of enhanced thermal conduction material can be
15%, the mass content of particle filler can be 20%；In order to further increase the radial heat conductivity of heat-conducting layer, continuous gas phase is raw
Long carbon fiber is while along axial arranged in parallel, radial using " needle pierces whole felt " structure braiding.
In order to improve the intelligent level of the heating device, embodiment as one preferred, the air conditioner is also wrapped
Include the temperature sensor (not shown) of the outlet refrigerant temperature for detecting outdoor heat exchanger 4, the temperature sensor
And the equal signal of control valve is connected to control unit (not shown), so that described control unit can be according to the temperature
The detection signal of degree sensor controls opening or closing for the control valve.When it is implemented, for the ease of temperature sensor
Installation, the temperature sensor can be patch type temperature sensor, which is mounted on the outdoor heat
On the outlet conduit of exchanger 4, described control unit passes through going out for the outdoor heat exchanger 4 for receiving temperature sensor detection
Mouthful pipe temperature judges the outlet refrigerant temperature of the outdoor heat exchanger 4, meanwhile, which also reacts to a certain extent
Ambient temperature.It should be pointed out that the outlet conduit of the outdoor heat exchanger 4 refers to that air-conditioning is in heating mode
When, it is connected to the pipeline of the outdoor heat exchanger 4 exported between the import of the compressor 1.The air conditioner passes through
The temperature sensor detects the outlet duct temperature of the outdoor heat exchanger 4 automatically, and automatic by described control unit
The temperature signal for acquiring and judging temperature sensor detection when the temperature of temperature sensor detection is lower, and is needed to institute
The refrigerant of the outlet of outdoor heat exchanger 4 output is stated when being heated, then described control unit controls the control valve and opens, and works as temperature
The temperature for spending sensor detection is higher, and when without heating, described control unit controls the control valve and closes.When it is implemented,
Solenoid valve, electric expansion valve etc. for example can be used in the control valve.Single-chip microcontroller for example can be used in described control unit, scene can compile
Journey gate array (Field-Programmable Gate Array, abbreviation FPGA) etc..
Further, the refrigerant temperature of the outlet of outdoor heat exchanger 4 output is efficiently controlled in order to be more accurate, it is described
Control unit also signal connects heating element 6, so that described control unit can be according to the detection signal of the temperature sensor
Adjust the heating power of the heating element 6.Specifically, when described control unit can control the heating of the heating element 6
Between and heating power, after the outlet conduit to the outdoor heat exchanger 4 heats a period of time, temperature sensor detection
Temperature signal still in compared with low state when, then described control unit control increases the heating power of the heating element 6, example
Such as, when the heating element 6 is adjustable resistance silk, described control unit can pass through effective access of the change resistance wire
Length and the heating power for changing the resistance wire.
Further, it is contemplated that the pressure that the outdoor heat exchanger 4 can bear is limited, and from the indoor heat exchanger
The pressure of the refrigerant of 2 outputs is larger, such as can achieve 1Mpa, and this powerful pressure is to the outdoor heat exchange in order to prevent
Device 4 damages, the pipe section between the outlet and the import of the outdoor heat exchanger 4 of the indoor heat exchanger 2
First throttle element 3 is provided on point, and second communicating pipe 10 is equipped with the second restricting element 8.In this way, working as refrigerant from institute
After the outlet output for stating indoor heat exchanger 2,3 reducing pressure by regulating flow of first throttle element is first passed through, then be input to the outdoor
Heat exchanger 4 first passes through the throttling of the second restricting element 8 drop after refrigerant is exported from the hollow heat dissipation element 7
Pressure, enters back into the outdoor heat exchanger 4, so that the first throttle element 3 and second restricting element 8 can reduce
The refrigerant pressure being input in the outdoor heat exchanger 4, avoids refrigerant pressure excessive and damages the outdoor heat exchanger 4.
When it is implemented, the first throttle element 3 and/or second restricting element 8 can for example use solenoid valve, electronic expansion
Valve etc..
Further, due to refrigerant from second communicating pipe 10 output after, need at the second tie point with the interior
The refrigerant of the outlet output of heat exchanger 2 converges, and enters back into the outdoor heat exchanger 4, on the one hand, described in order to prevent
The refrigerant temperature exported in second communicating pipe 10 is too low, and further speeds up the frosting of 4 outer surface of outdoor heat exchanger, separately
On the one hand, the refrigerant temperature in order to prevent in first communicating pipe 9 is excessively high and leads to the pressure in the outdoor heat exchanger 4
Excessive, embodiment as one preferred, the air conditioner further includes for detecting described second at second tie point
First temperature detecting element (not shown) of the output refrigerant temperature of communicating pipe 10 and for detect it is described second connection
The second temperature detecting element (not shown) of the output refrigerant temperature of the indoor heat exchanger 2 at point, described first
It is single that temperature detecting element, the second temperature detecting element and the equal signal of second restricting element 8 are connected to the control
Member, so that described control unit can detect member according to the detection signal of first temperature detecting element and the second temperature
The detection signal of part and the aperture for controlling second restricting element 8.When it is implemented, for the ease of installation, first temperature
Patch type temperature sensor can for example be used by spending detecting element and the second temperature detecting element, can be by first temperature
Degree detecting element is mounted on the outer wall of the second communicating pipe 10 at second tie point, to detect from second communicating pipe
The refrigerant temperature of second tie point is flowed out in 10, furthermore it is possible to the second temperature detecting element is mounted on described
The outlet conduit of the indoor heat exchanger 2 at second tie point (when i.e. air-conditioning is in heating mode, is connected to the interior
Pipe section between the outlet and the import of the outdoor heat exchanger 4 of heat exchanger 2) outer wall on, with detection from described
Indoor heat exchanger 2 flows out to the refrigerant temperature of second tie point.Described control unit receives first temperature detection
The detection signal of element and the second temperature detecting element, and the aperture by adjusting second restricting element 8, and make institute
It states in the refrigerant temperature and the indoor heat exchanger 2 flowed out in the second communicating pipe 10 at second tie point and flows out to institute
The refrigerant temperature stated at the second tie point is suitable.Specifically, when the aperture of second restricting element 8 is smaller, refrigerant is in
Residence time is more long in empty heat dissipation element 7, and heat dissipation capacity is bigger, so that temperature is got over when it flow at second tie point
It is low；Opposite, when the aperture of second restricting element 8 is bigger, it flow to described second out of described second communicating pipe 10 and connects
The refrigerant temperature of junction is higher, and therefore, described control unit can be controlled by adjusting the aperture of second restricting element 8
System flows out to the refrigerant temperature of second tie point out of described second communicating pipe 10,.
The another aspect of the embodiment of the present invention provides a kind of method for improving air conditioner heat-production effect, which comprises
In outlet refrigerant temperature≤first anticipation temperature value of outdoor heat exchanger 4, the outdoor heat exchanger 4 is heated
Outlet refrigerant；
In outlet refrigerant temperature >=second anticipation temperature value of the outdoor heat exchanger 4 (4), stop heating the room
The outlet refrigerant of outer heat-exchanger 4 (4)；
Wherein, the first anticipation temperature value is lower than the second anticipation temperature value.
It should be noted that when the outlet refrigerant of the outdoor heat exchanger 4 refers to that air conditioner is in heating mode, warp
The refrigerant of the outlet outflow of the outdoor heat exchanger 4；The temperature of the refrigerant can be detected in several ways, for example,
It mounting temperature sensor can detect on the outlet conduit of the outdoor heat exchanger 4.First anticipation temperature value and second
Anticipation temperature value can be preset in control unit, and be determined whether to by control unit according to actually detected temperature value
The outlet refrigerant of the outdoor heat exchanger 4 is heated, when needing to heat, by control unit control heating device to institute
The outlet refrigerant for stating outdoor heat exchanger 4 is heated, when it is implemented, the first anticipation temperature value for example can be set to
Any one temperature value between ± 1 DEG C, the second anticipation temperature value for example can be set to any one temperature between 6 DEG C -8 DEG C
Angle value only schematically illustrates here certainly, and the first anticipation temperature value and the second anticipation temperature value can also be at them
Value in his reasonable interval.
The method provided in an embodiment of the present invention for improving air conditioner heat-production effect can add when ambient temperature is lower
The outlet refrigerant of the heat outdoor heat exchanger 4；So as to improve under cryogenic conditions, the heating performance of air conditioner.
In order to more accurately and effectively heat the output refrigerant of the outdoor heat exchanger 4, implementation as one preferred
Example, the method also includes:
It is more than preset time value between when heated, and the variable quantity of the outlet refrigerant temperature of the outdoor heat exchanger 4 is low
When preset temperature value, heating power is improved.
Above-mentioned steps can accurately be sentenced by the change situation of the outlet refrigerant of outdoor heat exchanger 4 described in real-time detection
Whether the work of disconnected heating device is effective, and according to the situation of change of actual temperature, adjusts the heating power of heating device in real time,
So as to realize that the fast accurate of the outlet refrigerant of the outdoor heat exchanger 4 heats.When it is implemented, the preset time
Value for example can be set to 1 minute, and the preset temperature value for example can be set to any one temperature value between 2-3 DEG C.When
So, it can also be taken in other reasonable intervals according to the difference of actual state, the preset time value and the preset temperature value
Value.
Further, in order to preferably save resource and cost, embodiment as one preferred, in the initial rank of heating
Section, the output refrigerant of the outdoor heat exchanger 4 is heated with minimum power, for example, can control institute by described control unit
Heating device is stated to run under minimum power mode, specifically, when the heating device operation power 500W-1000W it
Between can timing, in the heating initial stage, described control unit can control heating device with the heating of 500W power, and acquire in real time
The temperature signal of temperature sensor detection, when the heating devices heat time for example more than 1min when, according to this 1min
The rising condition of the temperature of the interior temperature sensor acquisition, judges whether heating power setting is suitable, for example, if 1min
Interior, control unit judges that temperature is increased lower than 2 DEG C, then improves the heating power of the heating device, for example, control unit controls
The heating power with the heating of 600W power, continue to execute it is next loop to determine, until the setting of heating power meet it is preparatory
It until the standard of design, by this adaptive adjustment, may be implemented while saving resource, and accurate and effective heats institute
State the purpose of the outlet refrigerant temperature of outdoor heat exchanger 4.
In the method provided in an embodiment of the present invention for improving air conditioner heat-production effect, the outdoor heat exchanger 4 is heated
Export refrigerant mode can there are many, provide two ways below in conjunction with previously described heating device, certain heating
Method is not limited to both modes.
First way, such as electrical heating elements can be set on the outlet conduit of the outdoor heat exchanger 4, pass through
Control unit connects and controls electrical heating elements to be heated to the outlet refrigerant of the outdoor heat exchanger 4.
The second way, such as one is drawn for heating from the outlet of the indoor heat exchanger 2 or outlet conduit
The coolant path of the outlet refrigerant of the outdoor heat exchanger 4, the other end of the coolant path and the outdoor heat exchanger 4
The inlet pipeline of import or the outdoor heat exchanger 4 (when i.e. air-conditioning is in heating mode, is connected to the outdoor heat exchanger
Pipe section between 4 import and the outlet of the indoor heat exchanger 2) it is connected to, by heating the coolant path inside stream
The hollow heat dissipation element of dynamic refrigerant and the outlet conduit position for being mounted on the outdoor heat exchanger 4 comes for the outdoor
The outlet refrigerant of heat exchanger 4 heat.
Certainly, according to the comparison of hereinbefore two kinds of heating devices it is recognised that when the heating device uses second of side
When formula, heating effect is more uniform, and temperature control is more accurate, is also able to achieve preferably heat recovery, obtain save resource and
The beneficial effect of cost.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (12)
1. a kind of air conditioner, including being sequentially connected by pipeline to form the indoor heat exchanger of refrigerant circulation circuit (2), outdoor
Heat exchanger (4) and compressor (1), which is characterized in that the air conditioner further includes for the outdoor heat exchanger (4)
Export the heating device that the refrigerant of output is heated before it enters the compressor (1)；
The heating device includes the hollow heat dissipation heated for the pipeline section in the exit to the outdoor heat exchanger (4)
Element (7), one end of the hollow heat dissipation element (7) pass through the outlet of the first communicating pipe (9) and the indoor heat exchanger (2)
Or the indoor heat exchanger (2) outlet and the outdoor heat exchanger (4) import between pipe section connection and shape
At the first tie point, the other end passes through the second communicating pipe (10) and the outdoor heat exchanger (4) or the indoor heat exchanger
(2) pipe section between the import of outlet and the outdoor heat exchanger (4) connects and forms the second tie point, wherein institute
State outlet of first tie point relative to second tie point closer to the indoor heat exchanger (2)；And
First communicating pipe (9) is equipped with for the control valve (5) of the first communicating pipe (9) described in on-off and for heating
State the heating unit of the pipeline section part between the control valve (5) and the hollow heat dissipation element (7) of the first communicating pipe (9)
Part (6).
2. air conditioner according to claim 1, which is characterized in that the hollow heat dissipation element (7) is helix tube, the spiral shell
Coil is wrapped in the periphery of the pipe section of the outdoor heat exchanger (4) outlet.
3. air conditioner according to claim 1, which is characterized in that the hollow heat dissipation element (7) is set in the housing, described
Shell include inside heat-conducting layer and outside thermal insulation layer, the hollow heat dissipation element (7) be set to the heat-conducting layer and it is described every
Between thermosphere.
4. air conditioner according to any one of claim 1 to 3, which is characterized in that
The air conditioner further includes the temperature sensor for the refrigerant temperature for detecting the exit of outdoor heat exchanger (4), institute
It states temperature sensor and the control valve (5) signal is connected to control unit, so that described control unit can be according to institute
The detection signal for stating temperature sensor controls opening or closing for control valve (5).
5. air conditioner according to claim 4, which is characterized in that
Described control unit also signal connection heating element (6), so that described control unit can be according to the temperature sensor
Detection Signal Regulation described in heating element (6) heating power.
6. air conditioner according to claim 5, which is characterized in that the outlet and the room of the indoor heat exchanger (2)
It is provided on pipe section between the import of outer heat-exchanger (4) first throttle element (3), and second communicating pipe (10)
It is equipped with the second restricting element (8).
7. air conditioner according to claim 6, which is characterized in that
The air conditioner further includes the output refrigerant temperature for detecting second communicating pipe at second tie point
First temperature detecting element and output refrigerant temperature for detecting the indoor heat exchanger at second tie point
Second temperature detecting element, first temperature detecting element, the second temperature detecting element and it is described second throttling
Element (8) signal is connected to described control unit, so that described control unit can be according to first temperature detecting element
Detection signal and the second temperature detecting element detection signal and control the aperture of second restricting element (8).
8. a kind of method for improving air conditioner heat-production effect, which is characterized in that the described method includes:
In outlet refrigerant temperature≤first anticipation temperature value of outdoor heat exchanger (4), room described in heating devices heat is utilized
The outlet refrigerant of outer heat-exchanger (4)；
In outlet refrigerant temperature >=second anticipation temperature value of the outdoor heat exchanger (4), stop filling using the heating
Set the outlet refrigerant for heating the outdoor heat exchanger (4)；
Wherein, for the first anticipation temperature value lower than the second anticipation temperature value, the heating device includes for described
The hollow heat dissipation element (7) that the pipeline section in the exit of outdoor heat exchanger (4) is heated, the hollow heat dissipation element (7)
One end passes through the first communicating pipe (9) and the outlet of indoor heat exchanger (2) or the outlet of the indoor heat exchanger (2) and described
Pipe section between the import of outdoor heat exchanger (4) connects and forms the first tie point, and the other end passed through for the second communicating pipe
(10) with the outlet of the outdoor heat exchanger (4) or the indoor heat exchanger (2) and the outdoor heat exchanger (4) into
Mouthful between pipe section connection and formed the second tie point, wherein first tie point relative to second tie point more
Close to the outlet of the indoor heat exchanger (2)；And
First communicating pipe (9) is equipped with for the control valve (5) of the first communicating pipe (9) described in on-off and for heating
State the heating unit of the pipeline section part between the control valve (5) and the hollow heat dissipation element (7) of the first communicating pipe (9)
Part (6).
9. the method according to claim 8 for improving air conditioner heat-production effect, which is characterized in that the method also includes:
It is more than preset time value between when heated, and the variable quantity of the outlet refrigerant temperature of the outdoor heat exchanger (4) is lower than
When preset temperature value, heating power is improved.
10. the method according to claim 9 for improving air conditioner heat-production effect, which is characterized in that the preset time value
It is 1 minute, the preset temperature value is any one temperature value between 2 DEG C -3 DEG C.
11. the method according to claim 8 for improving air conditioner heat-production effect, which is characterized in that the first anticipation temperature
Angle value is any one temperature value between ± 1 DEG C, and the second anticipation temperature value is any one temperature value between 6 DEG C -8 DEG C.
12. improving the method for air conditioner heat-production effect according to any one of claim 8-11, which is characterized in that institute
State the realization of air conditioner described in any one of method claims 1 to 3 and 5 to 7.
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| CN201610628910.3A CN106288483B (en) | 2016-08-03 | 2016-08-03 | A kind of method of air conditioner and raising air conditioner heat-production effect |
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| JP4380077B2 (en) * | 2000-09-27 | 2009-12-09 | 株式会社デンソー | Air conditioner for vehicles |
| JP2006308156A (en) * | 2005-04-27 | 2006-11-09 | Matsushita Electric Ind Co Ltd | Air conditioner |
| KR101605901B1 (en) * | 2009-09-11 | 2016-03-23 | 엘지전자 주식회사 | Air conditioner and control method thereof |
| CN103851752B (en) * | 2012-12-04 | 2016-12-21 | 邯郸美的制冷设备有限公司 | A kind of air-conditioner and control method thereof |
| CN104807264B (en) * | 2014-01-23 | 2017-05-24 | 珠海格力电器股份有限公司 | Heat pump unit frosting restraining method and heat pump unit |
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