CN204963286U - Changes in temperature type air conditioning system and single cold mould air conditioning system - Google Patents

Changes in temperature type air conditioning system and single cold mould air conditioning system Download PDF

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Publication number
CN204963286U
CN204963286U CN201520667467.1U CN201520667467U CN204963286U CN 204963286 U CN204963286 U CN 204963286U CN 201520667467 U CN201520667467 U CN 201520667467U CN 204963286 U CN204963286 U CN 204963286U
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China
Prior art keywords
heat exchanger
interface
throttle
port
conditioning
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CN201520667467.1U
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Chinese (zh)
Inventor
刘燕飞
李金波
韩宇
郑雄
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广东美的制冷设备有限公司
美的集团股份有限公司
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Priority to CN201520667467.1U priority Critical patent/CN204963286U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The utility model discloses a changes in temperature type air conditioning system and single cold mould air conditioning system. The changes in temperature type air conditioning system include: enhanced vapor injection compressor, indoor outdoor heat exchanger, two throttling arrangement, flash vessel and automatically controlled heat exchangers. The flash vessel includes three interface, first interface and indoor heat exchanger intercommunication, and the second interface links to each other with the compressor air jet with outdoor heat exchanger intercommunication, third interface. A throttling arrangement establishes ties between outdoor heat exchanger and flash vessel, and the 2nd throttling arrangement establishes ties between indoor heat exchanger and flash vessel, and automatically controlled heat exchanger is established ties between two throttling arrangement. According to the utility model discloses an air conditioning system through setting up flash vessel and enhanced vapor injection compressor, has improved the complete machine performance. The electric control element radiating effect is good, normal work in the time of can guaranteeing electric control element high temperature. Establish automatically controlled heat exchanger between two throttling arrangement, guaranteed that the refrigerant temperature of the automatically controlled heat exchanger of flowing through is suitable, just also guaranteed electric control element's life and safe in utilization.

Description

Cold and warm type air-conditioning system and single cold type air-conditioning system
Technical field
The utility model relates to air-conditioning system field, especially relates to a kind of cold and warm type air-conditioning system and single cold type air-conditioning system.
Background technology
In material disclosed in correlation technique, the gas jet technique of air-conditioning is applied in and improves the more of system heating capacity aspect, and the research and apply combined for high-temperature refrigeration and low-temperature heating is relative little.But practical study finds, gas jet technique promotes also clearly refrigerating capacity, and the technology application of this respect needs to be put into practice.
Along with the increase of compressor air compensation, the corresponding power current of air-conditioning also becomes large.In the electric-control system of convertible frequency air-conditioner, automatically controlled part especially frequency-variable module caloric value when hot environment increases, and greatly constrains running frequency during compressor high-temperature refrigeration.Specifically, automatically controlled heat radiation usually uses heat dissipation metal and dispels the heat in conjunction with cross-ventilation.Because caloric value is large during high temperature, heat dissipation metal also can run into heat radiation bottleneck.For avoiding burning out, usual way reduces compressor operation frequency to reduce automatically controlled heating, and this just causes convertible frequency air-conditioner at high temperature refrigerating capacity reduction, affects user's comfort.
Also the scheme having some to utilize refrigerant in associated materials to dispel the heat to electric control element.But adopt liquid refrigerants heat radiation, cause because temperature in cold-producing medium evaporation process is too low automatically controlled on have condensed water to generate, there is potential safety hazard.Also have to adopt and dispelled the heat to electric control element by the isolated gaseous coolant of flash vessel, the impact of the quantity of steam also flashed off but can electric control element well lower the temperature, scheme haves much room for improvement.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of cold and warm type air-conditioning system, the integrity problem of electric control element when freezing under can effectively solving hot environment.
Another object of the present utility model is to provide a kind of single cold type air-conditioning system, the integrity problem of electric control element when freezing under also can effectively solving hot environment.
According to cold and warm type air-conditioning system of the present utility model, comprising: air injection enthalpy-increasing compressor, described air injection enthalpy-increasing compressor has exhaust outlet, gas returning port and puff prot; Commutation assembly, described commutation assembly has the first port to the 4th port, described first port is communicated with described 3rd port with one of them in described second port, and described first port is communicated with described 4th port with another in described second port, described first port is connected with described exhaust outlet, and described second port is connected with described gas returning port; Indoor heat exchanger and outdoor heat exchanger, the first end of described indoor heat exchanger is connected with described 3rd port, and the first end of described outdoor heat exchanger is connected with described 4th port; Flash vessel, described flash vessel comprises first interface to the 3rd interface, described first interface is communicated with the second end of described indoor heat exchanger, described second interface is communicated with the second end of described outdoor heat exchanger, described 3rd interface is connected with described puff prot, described flash vessel is configured to the gas-liquid mixture flowed into from one of them in described first interface and described second interface to carry out gas-liquid separation, and is discharged from described 3rd interface discharge, the rear remaining part of separation from another described first interface and described second interface by the gas fraction be separated; First throttle device and the second throttling arrangement, described first throttle device is connected in series between described outdoor heat exchanger and described second interface, and described second throttling arrangement is connected in series between described indoor heat exchanger and described first interface; For the automatically controlled heat exchanger dispelled the heat to the electric control element of cold and warm type air-conditioning system, described automatically controlled heat exchanger is connected in series between described first throttle element and described second interface, or described automatically controlled heat exchanger is connected in series between described second section fluid element and described first interface.
According to the cold and warm type air-conditioning system of the utility model embodiment, by arranging flash vessel and air injection enthalpy-increasing compressor in refrigeration systems, flash vessel is connected with the puff prot of air injection enthalpy-increasing compressor, flash vessel is utilized to carry out gas-liquid separation to refrigerant, isolated gaseous coolant directly sprays into compressor, thus improves overall performance.By automatically controlled heat exchanger of connecting in refrigeration systems, the whole thermophilic refrigerants flowed through in refrigeration system are utilized to dispel the heat to electric control element, good heat dissipation effect, effectively can ensure normal work during electric control element high temperature, automatically controlled heat exchanger is located between first throttle device and the second throttling arrangement simultaneously, ensure that the refrigerant temperature flowing through automatically controlled heat exchanger is suitable for, also just ensure that service life and the use safety of electric control element.
Alternatively, described first throttle device and the second throttling arrangement are respectively capillary.Thus, simply, cost is low, and reliable, long service life for first throttle device and the second throttling apparatus structure.
Alternatively, described first throttle device and the second throttling arrangement are respectively electric expansion valve.Thus, be convenient to control,
In certain embodiments, described first throttle device is the first one-way throttle valve of the direction one-way throttle from described outdoor heat exchanger to described flash vessel.
In certain embodiments, described second throttling arrangement is the second one-way throttle valve of the direction one-way throttle from described indoor heat exchanger to described flash vessel.
In certain embodiments, described first throttle device and described second throttling arrangement include the first capillary, the first coolant path be connected in parallel and the second coolant path, described first coolant path is in series with the second capillary, described second coolant path is in series with check valve, and described first capillary is connected with described first coolant path be connected in parallel and the second coolant path.
Preferably, described commutation assembly is cross valve.
In certain embodiments, described automatically controlled heat exchanger is connected in series between described first throttle element and described second interface.
According to single cold type air-conditioning system of the present utility model, comprising: air injection enthalpy-increasing compressor, described air injection enthalpy-increasing compressor has exhaust outlet, gas returning port and puff prot; Indoor heat exchanger and outdoor heat exchanger, the first end of described indoor heat exchanger is connected with described gas returning port, and the first end of described outdoor heat exchanger is connected with described exhaust outlet; Flash vessel, described flash vessel comprises first interface to the 3rd interface, and described first interface is communicated with the second end of described indoor heat exchanger, and described second interface is communicated with the second end of described outdoor heat exchanger, and described 3rd interface is connected with described puff prot; First throttle device and the second throttling arrangement, described first throttle device is connected in series between described outdoor heat exchanger and described second interface, and described second throttling arrangement is connected in series between described indoor heat exchanger and described first interface; For the automatically controlled heat exchanger dispelled the heat to the electric control element of single cold type air-conditioning system, described automatically controlled heat exchanger is connected in series between described first throttle element and described second interface, or described automatically controlled heat exchanger is connected in series between described second section fluid element and described first interface.
According to the cold and warm type air-conditioning system of the utility model embodiment, by arranging flash vessel and air injection enthalpy-increasing compressor in refrigeration systems, flash vessel is connected with the puff prot of air injection enthalpy-increasing compressor, flash vessel is utilized to carry out gas-liquid separation to refrigerant, isolated gaseous coolant directly sprays into compressor, thus improves overall performance.By automatically controlled heat exchanger of connecting in refrigeration systems, the whole thermophilic refrigerants flowed through in refrigeration system are utilized to dispel the heat to electric control element, good heat dissipation effect, effectively can ensure normal work during electric control element high temperature, ensure that service life and the use safety of electric control element.
Particularly, described automatically controlled heat exchanger is connected in series between described first throttle element and described second interface.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the cold and warm type air-conditioning system according to the utility model embodiment;
Fig. 2 is the structural representation of the cold and warm type air-conditioning system according to the utility model embodiment;
Fig. 3 is the structural representation of the cold and warm type air-conditioning system according to another embodiment of the utility model;
Fig. 4 is the structural representation of the throttling arrangement according to the utility model embodiment;
Fig. 5 is the structural representation of the cold and warm type air-conditioning system according to another embodiment of the utility model;
Fig. 6 is the structural representation of the single cold type air-conditioning system according to the utility model embodiment.
Reference numeral:
Cold and warm type air-conditioning system A, single cold type air-conditioning system B,
Air injection enthalpy-increasing compressor 1, exhaust outlet a, gas returning port b, puff prot c,
Commutation assembly 2, first port d, the second port e, the 3rd port f, the 4th port g,
Outdoor heat exchanger 3, indoor heat exchanger 4,
Flash vessel 5, first interface h, the second interface i, the 3rd interface j,
First throttle device 6, second throttling arrangement 7, automatically controlled heat exchanger 8,
First one-way throttle valve 61, second one-way throttle valve 71,
First capillary m1, the second capillary m2, check valve m3, the first coolant path l1, the second coolant path l2.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Describe the cold and warm type air-conditioning system A according to the utility model embodiment below with reference to Fig. 1-Fig. 5, wherein cold and warm type air-conditioning system A has refrigeration mode and heating mode.
As shown in Figure 1, according to the cold and warm type air-conditioning system A of the utility model embodiment, comprising: air injection enthalpy-increasing compressor 1, commutation assembly 2, indoor heat exchanger 4, outdoor heat exchanger 3, flash vessel 5, first throttle device 6, second throttling arrangement 7 and automatically controlled heat exchanger 8.
Wherein, air injection enthalpy-increasing compressor 1 has exhaust outlet a, gas returning port b and puff prot c, air injection enthalpy-increasing compressor 1 compresses for the refrigerant flowed into by gas returning port b, form HTHP cold media gas after refrigerant compression and discharge from exhaust outlet a, gaseous coolant can spray from puff prot c and pass into compressor to compress, reach and increase enthalpy object, promote household air-conditioner.It should be noted that, the structure of air injection enthalpy-increasing compressor and operation principle etc. are prior art, are just not described in detail here.
Commutation assembly 2 has the first port d, the second port e, the 3rd port f and the 4th port g, and the first port d is communicated with the 3rd port f with one of them in the second port e, and the first port d is communicated with the 4th port g with another in the second port e.That is, commutation assembly 2 has two kinds of conducting states, and a kind of conducting state is that the first port d is communicated with the 3rd port f, and the second port e is communicated with the 4th port g.Another kind of conducting state is that the first port d is communicated with the 4th port g, and the second port e is communicated with the 3rd port f.Wherein, the first port d is connected with exhaust outlet a, and the second port e is connected with gas returning port b.
Alternatively, because the application technology of cross valve in air-conditioning equipment is comparatively ripe, and cross valve volume is little, cost is lower, and cross valve commutation is stable, reliable, and therefore commutate assembly 2 preferably cross valve.Certainly, the utility model is not limited thereto, and such as, commutation assembly 2 also can be valve member in parallel, in series by multiple control valve disclosed in prior art, does not do concrete restriction here.
The first end of indoor heat exchanger 4 is connected with the 3rd port f, and the first end of outdoor heat exchanger 3 is connected with the 4th port g.
Flash vessel 5 comprises first interface h to the 3rd interface j, flash vessel 5 is configured to the gas-liquid mixture flowed into from one of them in first interface h and the second interface i to carry out gas-liquid separation, and the gas fraction be separated is discharged from the 3rd interface j, after being separated, remaining part is discharged from another first interface h and the second interface i.
Wherein first interface h is communicated with the second end of indoor heat exchanger 4, and the second throttling arrangement 7 is connected in series between indoor heat exchanger 4 and first interface h, and the second throttling arrangement 7 is for the reducing pressure by regulating flow of refrigerant.
Second interface i is communicated with the second end of outdoor heat exchanger 3, and first throttle device 6 is connected in series between outdoor heat exchanger 3 and the second interface i, and first throttle device 6 is also for the reducing pressure by regulating flow of refrigerant.
3rd interface j of flash vessel 5 is connected with the puff prot c of air injection enthalpy-increasing compressor 1, automatically controlled heat exchanger 8 is for dispelling the heat to the electric control element of cold and warm type air-conditioning system A, automatically controlled heat exchanger 8 is connected in series between first throttle device 6 and the second interface i of flash vessel 5, or automatically controlled heat exchanger 8 is connected in series between the first interface h of second section fluid element 7 and flash vessel 5.In some preferred exemplary, automatically controlled heat exchanger 8 is connected in series between the first interface h of second section fluid element 7 and flash vessel 5.
Be understandable that, electric control element is the control section of air-conditioner, as the duty that electric control element can be connected to control air injection enthalpy-increasing compressor 1 and the assembly 2 that commutates with the assembly 2 that commutates with air injection enthalpy-increasing compressor 1.
Particularly, air injection enthalpy-increasing compressor 1, indoor heat exchanger 4, outdoor heat exchanger 3, automatically controlled heat exchanger 8, first throttle device 6 and the second throttling arrangement 7 limit for the refrigerant that circulates kind of refrigeration cycle path and heat circulating path.Flash vessel 5 is connected on above-mentioned parts to limit the circulation path spraying refrigerant.
It should be noted that, the concrete structure of cross valve, indoor heat exchanger 4, outdoor heat exchanger 3, flash vessel 5 and throttling arrangement and operation principle etc. are prior art, automatically controlled heat exchanger 8 also can adopt automatically controlled heat exchanger structure disclosed in prior art, is just not described in detail here.
Carry out describing referring to two kinds of mode of operations of Fig. 1 to the cold and warm type air-conditioning system A according to the utility model embodiment.
Refrigeration mode: as shown in the single arrow in Fig. 1.High pressure gaseous refrigerant enters outdoor heat exchanger 3 heat exchange by the exhaust outlet a of air injection enthalpy-increasing compressor 1 through commutation assembly 2, and after heat exchange completes, most of gaseous coolant is condensed into liquid refrigerants.Gas-liquid mixed refrigerant realizes a reducing pressure by regulating flow through first throttle device 6 and produces thermophilic refrigerant, and thermophilic refrigerant flows into automatically controlled heat exchanger 8 and carries out heat exchange, thus dispels the heat to the electric control element of air-conditioning system.After heat exchange completes, refrigerant enters into flash vessel 5 by the second interface i again, and the refrigerant entering flash vessel 5 is separated into two-way:
The first via: liquid refrigerants flows out from first interface h, then refrigerant is crossed the second throttling arrangement 7 to carry out second throttle is low temperature, refrigerant after second throttle flows in indoor heat exchanger 4 again and absorbs heat, and flashes to the gaseous coolant of low-temp low-pressure, thus reduces indoor temperature.Gaseous coolant finally gets back to the gas returning port b of air injection enthalpy-increasing compressor 1 through commutation assembly 2, be compressed into high temperature and high pressure gas discharge afterwards and enter next round circulation.
Second tunnel: flowed out by the 3rd interface j by the gas fraction separated in flash vessel 5, gaseous coolant is sprayed in air injection enthalpy-increasing compressor 1 by puff prot c and compresses, and to improve entire system performance, discharges after compression, enters next circulation.For ease of describing, in the following description the refrigerant entering into puff prot c is called jet refrigerant.
Heating mode: as shown in the double-head arrow in Fig. 1.High pressure gaseous refrigerant enters indoor heat exchanger 4 heat exchange by the exhaust outlet a of air injection enthalpy-increasing compressor 1 through commutation assembly 2, thus improves indoor humidity.After heat exchange completes, most of gaseous coolant is condensed into liquid refrigerants.Gas-liquid mixed refrigerant realizes a reducing pressure by regulating flow through the second throttling arrangement 7 and produces thermophilic refrigerant, and refrigerant enters into flash vessel 5 by first interface h, and the refrigerant entering flash vessel 5 is separated into two-way:
The first via: liquid refrigerants flows out from first interface h, the liquid refrigerants of thermophilic flows into automatically controlled heat exchanger 8 and carries out heat exchange, thus dispels the heat to the electric control element of air-conditioning system.Then the refrigerant after heat exchange is crossed the second throttling arrangement 7 and is carried out second throttle and become low temperature, refrigerant after second throttle flows in outdoor heat exchanger 3 again and absorbs heat, flash to the gaseous coolant of low-temp low-pressure, gaseous coolant finally gets back to the gas returning port b of air injection enthalpy-increasing compressor 1 through commutation assembly 2, be compressed into high temperature and high pressure gas discharge afterwards and enter next round circulation.
Second tunnel: flowed out by the 3rd interface j by the gas fraction separated in flash vessel 5, gaseous coolant is sprayed in air injection enthalpy-increasing compressor 1 by puff prot c and compresses, to improve entire system performance.
It should be noted that, during electric control element work, caloric value is comparatively large, and when summer operation, heat is not easily evacuated, and affects safe operation and the service behaviour of electric control element.In the automatically controlled control system of transducer air conditioning, the electric-controlled box being positioned at off-premises station easily generates heat, and frequency-variable module heating especially is wherein large, constrains the operation of compressor frequency in high temperature environments greatly.
Therefore in the cold and warm type air-conditioning system A of the utility model embodiment, thermophilic refrigerants whole in refrigeration system is utilized to flow through automatically controlled heat exchanger 8, to carry out radiating and cooling to electric control element, rational in infrastructure, radiating efficiency is high, improve the reliability of automatically controlled heat radiation, ensure that service life and the use safety of electric control element, reach the object that electric-controlled box assembly in high temperature environments also can be reliable.
Wherein, thermophilic refrigerant flows into automatically controlled heat exchanger 8 and to absorb heat evaporation, especially in high temperature environments during refrigeration, refrigerant caloric receptivity is more, add gaseous state content in refrigerant, therefore, between the first interface h automatically controlled heat exchanger 8 being connected in series in second section fluid element 7 and flash vessel 5, the heat-absorbing action playing automatically controlled heat exchanger 8 when air conditioner refrigerating is just made, be beneficial to flash vessel 5 and isolate purer injection refrigerant, avoid producing liquid hammer to air injection enthalpy-increasing compressor 1.
Here, also it should be noted that, in air-conditioning refrigeration system, arrange throttling arrangement, throttling arrangement has the effect of reducing pressure by regulating flow and cooling usually.In traditional air-conditioning system, between indoor heat exchanger and outdoor heat exchanger, a throttling arrangement is only set usually, refrigerant generates liquid refrigerants after throttling arrangement throttling, temperature is also lower, if adopt this refrigerant to lower the temperature to automatically controlled heat exchanger 8, can cause that electric control element has condensed water to generate, there is potential safety hazard.Therefore in the utility model embodiment, cold and warm type air-conditioning system A comprises first throttle device 6 and the second throttling arrangement 7, no matter cooling system or heat, and refrigerant is all lowered the temperature through second throttle, make the proper temperature of the refrigerant flowing through automatically controlled heat exchanger 8, improve use safety.
According to the cold and warm type air-conditioning system A of the utility model embodiment, by arranging flash vessel 5 and air injection enthalpy-increasing compressor 1 in refrigeration systems, flash vessel 5 is connected with the puff prot c of air injection enthalpy-increasing compressor 1, flash vessel 5 pairs of refrigerants are utilized to carry out gas-liquid separation, isolated gaseous coolant directly sprays into compressor, thus improves overall performance.By automatically controlled heat exchanger 8 of connecting in refrigeration systems, the whole thermophilic refrigerants flowed through in refrigeration system are utilized to dispel the heat to electric control element, good heat dissipation effect, effectively can ensure normal work during electric control element high temperature, automatically controlled heat exchanger 8 is located between first throttle device 6 and the second throttling arrangement 7 simultaneously, ensure that the refrigerant temperature flowing through automatically controlled heat exchanger 8 is suitable for, also just ensure that service life and the use safety of electric control element.
In the utility model embodiment, the structure type of throttling arrangement can be multiple.First throttle device 6 and the second throttling arrangement 7 can be respectively capillary, and thus, simply, cost is low, and reliable, long service life for first throttle device 6 and the second throttling arrangement 7 structure.First throttle device 6 and the second throttling arrangement 7 also can be respectively choke valve, thus are convenient to control amount of restriction, and as shown in Figure 5, first throttle device 6 and the second throttling arrangement 7 can be respectively electric expansion valve.First throttle device 6 and the second throttling arrangement 7 can structure identical, first throttle device 6 and the second throttling arrangement 7 also can be the combination of different restricting element.
In addition, when the flow direction variation of refrigerant, the amount of restriction of first throttle device 6 and the second throttling arrangement 7 also can correspondingly change, to meet first throttle device 6 and the second throttling arrangement 7 in kind of refrigeration cycle and the different throttling demands that heat in circulation.Such as, as shown in Figure 2, first throttle device 6 and the second throttling arrangement 7 can be respectively one-way throttle valve.Again as shown in Figure 3, first throttle device 6 and the second throttling arrangement 7 also can be respectively the combiner that capillary and check valve are formed.
In a specific embodiment, as shown in Figure 2, first throttle device 6 is that heat exchanger 3 arrives the first one-way throttle valve 61 of the direction one-way throttle of flash vessel 5 outdoor.That is, when refrigerant outdoor direction from heat exchanger 3 to flash vessel 5 flowing time, first one-way throttle valve 61 carries out throttling to the refrigerant flowed through, and when refrigerant flows from flash vessel 5 to the direction of outdoor heat exchanger 3, the first one-way throttle valve 61 is to the refrigerant not throttling flowed through.
Second throttling arrangement 7 is that heat exchanger 4 arrives the second one-way throttle valve 71 of the direction one-way throttle of flash vessel 5 indoor.That is, when refrigerant indoor direction from heat exchanger 4 to flash vessel 5 flowing time, second one-way throttle valve 71 carries out throttling to the refrigerant flowed through, and when refrigerant flows from flash vessel 5 to the direction of indoor heat exchanger 4, the second one-way throttle valve 71 is to the refrigerant not throttling flowed through.
In this embodiment, commutation assembly 2 is cross valve, and automatically controlled heat exchanger 8 is connected in series between the first interface h of second section fluid element 7 and flash vessel 5, and its concrete circulation pattern is as follows:
Refrigeration mode: high temperature and high pressure gas is by the exhaust outlet a → be condensed into liquid after outdoor heat exchanger 3 heat exchange → heat exchange completes through cross valve 2 → enter first to flow through the first one-way throttle valve 61 and realize the automatically controlled heat exchanger 8 of throttling → enter and carry out heat exchange → enter flash vessel 5 and carry out gas-liquid separation and become two-way → first via of air injection enthalpy-increasing compressor 1: liquid carries out being evaporated to after heat exchange → heat exchange completes gas through the second one-way throttle valve 71 not throttling → enter indoor heat exchanger 4 and is compressed into high temperature and high pressure gas through the gas returning port b of cross valve 2 → get back to air injection enthalpy-increasing compressor 1 and discharges, enter next circulation, second tunnel: by the gas separated in flash vessel 5 suck air injection enthalpy-increasing compressor 1 puff prot c → entering by gas returning port b the gas and vapor permeation be compressed to a certain degree with the first via carries out compressing rear discharge again, enter next and circulate.
Heating mode: high temperature and high pressure gas is by the exhaust outlet a → carry out being condensed into after heat exchange → heat exchange completes liquid through cross valve 2 → enter indoor heat exchanger 4 first to flow through the second one-way throttle valve 71 and realize throttling → enter flash vessel 5 and carry out gas-liquid separation and become two-way → first via of air injection enthalpy-increasing compressor 1: liquid refrigerants enters automatically controlled heat exchanger 8 and carries out heat exchange → carry out being evaporated to after heat exchange → heat exchange completes gas through the first one-way throttle valve 61 not throttling → enter outdoor heat exchanger 3 to be compressed into high temperature and high pressure gas through the gas returning port b of cross valve 2 → get back to air injection enthalpy-increasing compressor 1 and to discharge, and enters next circulation; Second tunnel: by the gas separated in flash vessel 5 suck air injection enthalpy-increasing compressor 1 puff prot c → entering by gas returning port b the gas and vapor permeation be compressed to a certain degree with the first via carries out compressing rear discharge again, enter next and circulate.
In another specific embodiment, as shown in Figure 3, first throttle device 6 and the second throttling arrangement 7 are the combiner that capillary and check valve are formed.
Particularly, as shown in Figure 4, combiner comprises the first capillary m1, the first coolant path l1 be connected in parallel and the second coolant path l2, first coolant path l1 is in series with the second capillary m2, second coolant path l2 is in series with check valve m3, and the first capillary m1 connects with the first coolant path l1 be connected in parallel and the second coolant path l2.In the example of fig. 4, when refrigerant flows along r1 direction, check valve m3 conducting second coolant path l2, refrigerant flows out from the second coolant path l2 after flowing through the first capillary m1.When refrigerant flows along r2 direction, check valve m3 ends the second coolant path l2, and refrigerant flows through the second capillary m2 from the first coolant path l1, flows out after flowing through the first capillary m1 afterwards.That is, in this combiner, when refrigerant flows along r1 direction, refrigerant is through the first capillary m1 throttling, and when refrigerant flows along r2 direction, refrigerant, through the second capillary m2 throttling, realizes refrigerant flow direction not, the object that amount of restriction is different.
More specifically, in the second throttling arrangement 7, the check valve m3 of the second throttling arrangement 7 is configured to the direction one-way conduction from flash vessel 5 to indoor heat exchanger 4.Like this, when refrigerant indoor direction from heat exchanger 4 to flash vessel 5 flowing time, refrigerant flows through the first capillary m1, the second capillary m2 of the second throttling arrangement 7.When refrigerant flows from flash vessel 5 to the direction of indoor heat exchanger 4, refrigerant flows through the first capillary m1 of the second throttling arrangement 7.Same, in first throttle device 6, the check valve m3 of first throttle device 6 is configured to the direction one-way conduction from flash vessel 5 to outdoor heat exchanger 3.
Certainly, the structure of the combiner that capillary and check valve are formed is formed multiple, and the utility model is not limited thereto, and such as, check valve m3 also can be connected on the first coolant path l1.Or the first capillary m1 and the second capillary m2 also can be replaced by choke valve, does not do concrete restriction here.
Referring to Fig. 6, the single cold type air-conditioning system B according to the utility model embodiment is described.
According to the single cold type air-conditioning system B of the utility model embodiment, as shown in Figure 6, comprising: air injection enthalpy-increasing compressor 1, indoor heat exchanger 4, outdoor heat exchanger 3, flash vessel 5, first throttle device 6, second throttling arrangement 7 and automatically controlled heat exchanger 8.
Air injection enthalpy-increasing compressor 1 has exhaust outlet a, gas returning port b and puff prot c.The first end of indoor heat exchanger 4 is connected with gas returning port b, and the first end of outdoor heat exchanger 3 is connected with exhaust outlet a.
Flash vessel 5 comprises first interface h and is communicated with the second end of indoor heat exchanger 4 to the 3rd interface j, first interface h, and the second interface i is communicated with the second end of outdoor heat exchanger 3, and the 3rd interface j is connected with puff prot c.First throttle device 6 is connected in series between outdoor heat exchanger 3 and the second interface i, and the second throttling arrangement 7 is connected in series between indoor heat exchanger 4 and first interface h.
Automatically controlled heat exchanger 8 is for dispelling the heat to the electric control element of single cold type air-conditioning system B, and automatically controlled heat exchanger 8 is connected in series between gas vent q and puff prot c.Automatically controlled heat exchanger 8 is connected in series between first throttle device 6 and the second interface i of flash vessel 5, or automatically controlled heat exchanger 8 is connected in series between the first interface h of second section fluid element 7 and flash vessel 5.In some preferred exemplary, automatically controlled heat exchanger 8 is connected in series between the first interface h of second section fluid element 7 and flash vessel 5.
Particularly, air injection enthalpy-increasing compressor 1, indoor heat exchanger 4, outdoor heat exchanger 3 and first throttle device 6, second throttling arrangement 7, automatically controlled heat exchanger 8 limit the kind of refrigeration cycle path for the refrigerant that circulates.Flash vessel 5 is connected on above-mentioned parts to limit the circulation path spraying refrigerant.
The kind of refrigeration cycle of single cold type air-conditioning system B and to spray the circulation path of refrigerant identical with process of refrigerastion cardinal principle in cold and warm type air-conditioning system A, repeats no more here.
In single cold type air-conditioning system B, first throttle device 6, second throttling arrangement 7 can be electric expansion valve, capillary etc.
Equally, according to single waring and cooling air conditioning system B of the utility model embodiment, by arranging flash vessel 5 and air injection enthalpy-increasing compressor 1 in refrigeration systems, flash vessel 5 is connected with the puff prot c of air injection enthalpy-increasing compressor 1, flash vessel 5 pairs of refrigerants are utilized to carry out gas-liquid separation, isolated gaseous coolant directly sprays into compressor, thus improves overall performance.By automatically controlled heat exchanger 8 of connecting in refrigeration systems, the whole thermophilic refrigerants flowed through in refrigeration system are utilized to dispel the heat to electric control element, good heat dissipation effect, effectively can ensure normal work during electric control element high temperature, ensure that service life and the use safety of electric control element.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims (10)

1. a cold and warm type air-conditioning system, is characterized in that, comprising:
Air injection enthalpy-increasing compressor, described air injection enthalpy-increasing compressor has exhaust outlet, gas returning port and puff prot;
Commutation assembly, described commutation assembly has the first port to the 4th port, described first port is communicated with described 3rd port with one of them in described second port, and described first port is communicated with described 4th port with another in described second port, described first port is connected with described exhaust outlet, and described second port is connected with described gas returning port;
Indoor heat exchanger and outdoor heat exchanger, the first end of described indoor heat exchanger is connected with described 3rd port, and the first end of described outdoor heat exchanger is connected with described 4th port;
Flash vessel, described flash vessel comprises first interface to the 3rd interface, described first interface is communicated with the second end of described indoor heat exchanger, described second interface is communicated with the second end of described outdoor heat exchanger, described 3rd interface is connected with described puff prot, described flash vessel is configured to the gas-liquid mixture flowed into from one of them in described first interface and described second interface to carry out gas-liquid separation, and is discharged from described 3rd interface discharge, the rear remaining part of separation from another described first interface and described second interface by the gas fraction be separated;
First throttle device and the second throttling arrangement, described first throttle device is connected in series between described outdoor heat exchanger and described second interface, and described second throttling arrangement is connected in series between described indoor heat exchanger and described first interface;
For the automatically controlled heat exchanger dispelled the heat to the electric control element of cold and warm type air-conditioning system, described automatically controlled heat exchanger is connected in series between described first throttle element and described second interface, or described automatically controlled heat exchanger is connected in series between described second section fluid element and described first interface.
2. cold and warm type air-conditioning system according to claim 1, is characterized in that, described first throttle device and the second throttling arrangement are respectively capillary.
3. cold and warm type air-conditioning system according to claim 1, is characterized in that, described first throttle device and the second throttling arrangement are respectively electric expansion valve.
4. cold and warm type air-conditioning system according to claim 1, is characterized in that, described first throttle device is the first one-way throttle valve of the direction one-way throttle from described outdoor heat exchanger to described flash vessel.
5. cold and warm type air-conditioning system according to claim 1, is characterized in that, described second throttling arrangement is the second one-way throttle valve of the direction one-way throttle from described indoor heat exchanger to described flash vessel.
6. cold and warm type air-conditioning system according to claim 1, it is characterized in that, described first throttle device and described second throttling arrangement include the first capillary, the first coolant path be connected in parallel and the second coolant path, described first coolant path is in series with the second capillary, described second coolant path is in series with check valve, and described first capillary is connected with described first coolant path be connected in parallel and the second coolant path.
7. cold and warm type air-conditioning system according to claim 1, is characterized in that, described commutation assembly is cross valve.
8. cold and warm type air-conditioning system according to claim 1, is characterized in that, described automatically controlled heat exchanger is connected in series between described first throttle element and described second interface.
9. a single cold type air-conditioning system, is characterized in that, comprising:
Air injection enthalpy-increasing compressor, described air injection enthalpy-increasing compressor has exhaust outlet, gas returning port and puff prot;
Indoor heat exchanger and outdoor heat exchanger, the first end of described indoor heat exchanger is connected with described gas returning port, and the first end of described outdoor heat exchanger is connected with described exhaust outlet;
Flash vessel, described flash vessel comprises first interface to the 3rd interface, and described first interface is communicated with the second end of described indoor heat exchanger, and described second interface is communicated with the second end of described outdoor heat exchanger, and described 3rd interface is connected with described puff prot;
First throttle device and the second throttling arrangement, described first throttle device is connected in series between described outdoor heat exchanger and described second interface, and described second throttling arrangement is connected in series between described indoor heat exchanger and described first interface;
For the automatically controlled heat exchanger dispelled the heat to the electric control element of single cold type air-conditioning system, described automatically controlled heat exchanger is connected in series between described first throttle element and described second interface, or described automatically controlled heat exchanger is connected in series between described second section fluid element and described first interface.
10. single cold type air-conditioning system according to claim 9, is characterized in that, described automatically controlled heat exchanger is connected in series between described first throttle element and described second interface.
CN201520667467.1U 2015-08-31 2015-08-31 Changes in temperature type air conditioning system and single cold mould air conditioning system CN204963286U (en)

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Cited By (13)

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CN105091395A (en) * 2015-08-31 2015-11-25 广东美的制冷设备有限公司 Cooling and heating type air-conditioner system and single-cooling type air-conditioner system
CN105758038A (en) * 2016-04-29 2016-07-13 广东美的制冷设备有限公司 Single-refrigeration type air conditioner and control method thereof
CN105758039A (en) * 2016-04-29 2016-07-13 广东美的制冷设备有限公司 Single cold-type air conditioner and control method thereof
CN105758036A (en) * 2016-04-29 2016-07-13 广东美的制冷设备有限公司 Single-refrigeration type air conditioner and control method thereof
CN105783309A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Cold-warm type air conditioner and control method thereof
CN105783325A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Air conditioner with refrigeration and heating functions and control method thereof
CN105783308A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Single-cold type air conditioner and control method thereof
CN105783310A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Cooling-heating-type air conditioner and control method thereof
CN105783314A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Air conditioner only having refrigeration function and control method thereof
CN105783313A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Air conditioner only having refrigeration function and control method thereof
CN105783312A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Cooling-heating-type air conditioner and control method thereof
CN105783315A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Air conditioner only having refrigeration function and control method thereof
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105091395A (en) * 2015-08-31 2015-11-25 广东美的制冷设备有限公司 Cooling and heating type air-conditioner system and single-cooling type air-conditioner system
CN105783313A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Air conditioner only having refrigeration function and control method thereof
CN105758039A (en) * 2016-04-29 2016-07-13 广东美的制冷设备有限公司 Single cold-type air conditioner and control method thereof
CN105758036A (en) * 2016-04-29 2016-07-13 广东美的制冷设备有限公司 Single-refrigeration type air conditioner and control method thereof
CN105783309A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Cold-warm type air conditioner and control method thereof
CN105783325A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Air conditioner with refrigeration and heating functions and control method thereof
CN105783308A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Single-cold type air conditioner and control method thereof
CN105783310A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Cooling-heating-type air conditioner and control method thereof
CN105783314A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Air conditioner only having refrigeration function and control method thereof
CN105758038A (en) * 2016-04-29 2016-07-13 广东美的制冷设备有限公司 Single-refrigeration type air conditioner and control method thereof
CN105783312A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Cooling-heating-type air conditioner and control method thereof
CN105783315A (en) * 2016-04-29 2016-07-20 广东美的制冷设备有限公司 Air conditioner only having refrigeration function and control method thereof
CN105928146A (en) * 2016-04-29 2016-09-07 广东美的制冷设备有限公司 Control method of cold and warm air conditioner
CN105928146B (en) * 2016-04-29 2018-10-26 广东美的制冷设备有限公司 The control method of heating and air conditioner
CN105783312B (en) * 2016-04-29 2019-03-12 广东美的制冷设备有限公司 Heating and air conditioner and its control method
CN105783310B (en) * 2016-04-29 2019-07-30 广东美的制冷设备有限公司 Heating and air conditioner and its control method
CN105783314B (en) * 2016-04-29 2019-07-30 广东美的制冷设备有限公司 Single cold type air conditioner and its control method
CN105758039B (en) * 2016-04-29 2019-09-27 广东美的制冷设备有限公司 Single cold type air conditioner and its control method

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