CN204962968U - 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 PDFInfo
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- CN204962968U CN204962968U CN201520633308.XU CN201520633308U CN204962968U CN 204962968 U CN204962968 U CN 204962968U CN 201520633308 U CN201520633308 U CN 201520633308U CN 204962968 U CN204962968 U CN 204962968U
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- Y—GENERAL 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
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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 heat exchanger, outdoor heat exchanger, flash vessel, gas -liquid separation and automatically controlled heat exchanger. The flash vessel includes three interface, first interface and indoor heat exchanger intercommunication, second interface and outdoor heat exchanger intercommunication. Gas -liquid separation links to each other with the third interface including import, liquid outlet and gas outlet, import. Automatically controlled heat exchanger is used for dispelling the heat to air conditioning system's electric control element, and automatically controlled heat exchanger is established ties between the air jet of gas outlet and compressor. According to the utility model discloses a changes in temperature type air conditioning system has guaranteed electric control element's life and safe in utilization, and secondary gas -liquid separation can improve the gaseous state content of jet -propelled refrigerant moreover, avoids producing the liquid hammer to the compressor. Simultaneously automatically controlled heat exchanger sets up the jet -propelled mass dryness fraction that can improve the air jet, the operational reliability and the wholeness ability of improvement system.
Description
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
Major part adopts the air-conditioning system of air injection enthalpy-increasing compressor, and be all carry out gas-liquid separation by flash vessel to condensed cold-producing medium, isolated gaseous refrigerant gets back to compressor by puff prot, thus promotes household air-conditioner.According to the characteristic of air injection enthalpy-increasing compressor, if there is liquid refrigerant directly to get back to compressor, not only can reduce household air-conditioner, also can cause damage to compressor, how avoiding or reduce liquid refrigerants directly getting back to compressor as seen, is the key issue promoting household air-conditioner and reliability.
In the electric-control system of convertible frequency air-conditioner, especially frequency-variable module heating is large for the automatically controlled part of off-premises station, greatly constrains the frequency of compressor operating in high temperature environments.Specifically, automatically controlled heat radiation is usually used metal heat sink and is dispelled the heat by cross-ventilation.But when outdoor temperature is higher, because caloric value is large, heat dissipation metal also can run into heat radiation bottleneck.In this case burn out automatically controlled device for avoiding, the reduction compressor operation frequency of usual way to reduce automatically controlled heating, thus affects convertible frequency air-conditioner refrigeration at high temperature.
In associated materials, the scheme also having some to utilize refrigerant to dispel the heat to electric control element.But adopt liquid refrigerants heat radiation, refrigerating capacity and the efficiency of air-conditioner can be lost, and cause because temperature in cold-producing medium evaporation process is too low automatically controlled on have condensed water to generate, there is the hidden danger of automatically controlled use safety.Also have to adopt and dispelled the heat to electric control element by the isolated gaseous coolant of flash vessel, but easily produce liquid hammer, 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, effectively can solve the integrity problem of electric control element during high-temperature refrigeration, avoid producing liquid hit phenomenon simultaneously.
Another object of the present utility model is to provide a kind of single cold type air-conditioning system, also effectively can solve the integrity problem of electric control element during high-temperature refrigeration, avoids producing liquid hit phenomenon simultaneously.
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 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; Gas-liquid separation device, described gas-liquid separation device comprises import, liquid outlet and gas vent, described import is connected with described 3rd interface, described liquid outlet is connected between described second throttling arrangement and described flash vessel, or described liquid outlet is connected between described first throttle device and described flash vessel; 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 gas vent and described puff prot.
According to cold and warm type air-conditioning system of the present utility model, by automatically controlled heat exchanger of connecting between flash vessel and the puff prot of air injection enthalpy-increasing compressor, the isolated gaseous coolant of flash vessel can flow through automatically controlled heat exchanger to dispel the heat to electric control element, normal work during effective guarantee electric control element high temperature, ensure that service life and the use safety of electric control element.By being arranged in series gas-liquid separation device between flash vessel and automatically controlled heat exchanger, secondary gas-liquid separation can improve the gaseous state content of jet refrigerant, avoids producing liquid hammer to compressor.Simultaneously automatically controlled heat exchanger the jet mass dryness fraction that can improve puff prot is set, improve operational reliability and the overall performance of cold and warm type air-conditioning system.
Alternatively, described first throttle device and the second throttling arrangement are respectively capillary.
Alternatively, described first throttle device and the second throttling arrangement are respectively electric expansion valve.
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.
Alternatively, described gas-liquid separation device is fluid reservoir or gas-liquid separator.
Preferably, described liquid outlet is connected between described second throttling arrangement and described flash vessel.
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; 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; Gas-liquid separation device, described gas-liquid separation device comprises import, liquid outlet and gas vent, described import is connected with described 3rd interface, described liquid outlet is connected between described second throttling arrangement and described flash vessel, or described liquid outlet is connected between described indoor heat exchanger and described flash vessel; 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 gas vent and described puff prot.
According to single cold type air-conditioning system of the present utility model, by automatically controlled heat exchanger of connecting between flash vessel and the puff prot of air injection enthalpy-increasing compressor, the isolated gaseous coolant of flash vessel can flow through automatically controlled heat exchanger to dispel the heat to electric control element, normal work during effective guarantee electric control element high temperature, ensure that service life and the use safety of electric control element.By being arranged in series gas-liquid separation device between flash vessel and automatically controlled heat exchanger, secondary gas-liquid separation can improve the gaseous state content of jet refrigerant, avoids producing liquid hammer to compressor.Simultaneously automatically controlled heat exchanger the jet mass dryness fraction that can improve puff prot is set, improve operational reliability and the overall performance of single cold type air-conditioning system.
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,
Gas-liquid separation device 9, import k, liquid outlet p, gas vent q,
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 Figure 1-Figure 4, 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, gas-liquid separation device 9 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.
Indoor heat exchanger 4 first end is connected with the 3rd port f, and outdoor heat exchanger 3 first end 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 for the reducing pressure by regulating flow of refrigerant.
Gas-liquid separation device 9 comprises import k, liquid outlet p and gas vent q, and import k is connected with the 3rd interface j, and liquid outlet p is connected between the second throttling arrangement 7 and flash vessel 5, or liquid outlet p is connected between first throttle device 6 and flash vessel 5.Preferably, as shown in Figure 1, liquid outlet p is connected between the second throttling arrangement 7 and flash vessel 5.
Automatically controlled heat exchanger 8 is for dispelling the heat to the electric control element of cold and warm type air-conditioning system A, and automatically controlled heat exchanger 8 is connected in series between gas vent q and puff prot c.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, 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, gas-liquid separation device 9 and automatically controlled heat exchanger 8 are 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, gas-liquid separation device 9 and throttling arrangement and operation principle etc. are prior art, automatically controlled heat exchanger 8 also can adopt heat exchanger structure disclosed in prior art, is just not described in detail here.
Carry out describing to two kinds of mode of operations of the cold and warm type air-conditioning system A with reference to Fig. 1 below:
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 through first throttle device 6 refrigerant that a throttling becomes medium temperature and medium pressure state, and the refrigerant of medium temperature and medium pressure enters into flash vessel 5 through the second interface i and is separated into two-way:
The first via: liquid refrigerants is through first interface h, crossing the second throttling arrangement 7, to carry out second throttle be low temperature, then enter indoor heat exchanger 4 and carry out heat exchange, be evaporated to gas after heat exchange completes and pass through the gas returning port b that air injection enthalpy-increasing compressor 1 got back to by commutation assembly 2, being compressed into high temperature and high pressure gas discharge afterwards and entering next circulation.
Second tunnel: flow into gas-liquid separation device 9 by the gas fraction separated in flash vessel 5 by the 3rd interface j, the refrigerant being flow into gas-liquid separation device 9 by flash vessel 5 carries out secondary gas-liquid separation.The high-purity gaseous coolant that secondary separation goes out flows into automatically controlled heat exchanger 8 from gas vent q, refrigerant in automatically controlled heat exchanger 8 sprays in air injection enthalpy-increasing compressor 1 by puff prot c, enter the gas returning port b gas and vapor permeation be compressed to a certain degree with the first via to carry out again compressing rear discharge, enter next circulation.Then got back to the circulation of the first via by liquid outlet p from the isolated remainder of gas-liquid separation device 9.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 by the exhaust outlet a of air injection enthalpy-increasing compressor 1 through commutation assembly 2 and carries out heat exchange, and after heat exchange completes, most of gaseous coolant is condensed into liquid refrigerants.Gas-liquid mixed refrigerant flows into the second throttling arrangement 7 to carry out first time throttling and becomes medium temperature and medium pressure state, and the refrigerant of medium temperature and medium pressure state enters into flash vessel 5 through first interface h and is separated into two-way:
The first via: liquid refrigerants is through the second interface i, crossing first throttle device 6, to carry out second time throttling be low temperature, the refrigerant of low temperature enters into outdoor heat exchanger 3 and carries out heat exchange, gas is flashed to after heat exchange completes, this gas gets back to the gas returning port b of air injection enthalpy-increasing compressor 1 through commutation assembly 2, is compressed into high temperature and high pressure gas discharge afterwards and enters next circulation.
Second tunnel: flow into gas-liquid separation device 9 by the gas fraction separated in flash vessel 5 by the 3rd interface j, the refrigerant being flow into gas-liquid separation device 9 by flash vessel 5 carries out secondary gas-liquid separation.The high-purity gaseous coolant that secondary separation goes out flows into automatically controlled heat exchanger 8 from gas vent q, refrigerant in automatically controlled heat exchanger 8 sprays in air injection enthalpy-increasing compressor 1 by puff prot c, enter the gas returning port b gas and vapor permeation be compressed to a certain degree with the first via to carry out again compressing rear discharge, enter next circulation.Then got back to the circulation of the first via by liquid outlet p from the isolated remainder of gas-liquid separation device 9.
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 control element of its off-premises station easily generates heat, and the frequency-variable module heating especially in electric control element is 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, utilize jet refrigerant in automatically controlled heat exchanger 8, absorb the heat of electric control element, realize the heat exchange of jet refrigerant and electric control element, rational in infrastructure, radiating efficiency is high.
Because jet refrigerant obtains through flash vessel 5 and gas-liquid separation device 9 secondary separation, improve the gaseous coolant content flowing into puff prot c.And after the heat of jet refrigerant absorption electric control element, the micro-liquid refrigerants be mixed in jet refrigerant can partly evaporate or flash to gaseous state completely, further increases the gaseous coolant content flowing into puff prot c, avoids producing liquid hammer to compressor.After jet refrigerant improves temperature simultaneously, the puff prot c returning air injection enthalpy-increasing compressor 1 is compressed, ensure that jet mass dryness fraction, that avoids air injection enthalpy-increasing compressor 1 returns liquid, the heat of electric control element is taken away temperature reduction by jet refrigerant simultaneously, reaches the reliable object of hot operation of electric-controlled box assembly.
Here, the gaseous coolant gone out by flash vessel 5 and gas-liquid separation device 9 secondary separation flows into automatically controlled heat exchanger 8, instead of adopt liquid refrigerants to flow directly into automatically controlled heat exchanger 8, liquid refrigerants can be avoided to continue evaporation endothermic and cause causing easily producing due to excessive temperature differentials between automatically controlled heat exchanger 8 surface and electric control element the phenomenon of condensed water, ensure that service life and the use safety of electric control element.
According to the cold and warm type air-conditioning system A of the utility model embodiment, by automatically controlled heat exchanger 8 of connecting between flash vessel 5 and the puff prot c of air injection enthalpy-increasing compressor 1, the isolated gaseous coolant of flash vessel 5 can flow through automatically controlled heat exchanger 8 to dispel the heat to electric control element, effectively can ensure normal work during electric control element high temperature, ensure that service life and the use safety of electric control element.By being arranged in series gas-liquid separation device 9 between flash vessel 5 and automatically controlled heat exchanger 8, secondary gas-liquid separation can improve the gaseous state content of jet refrigerant, avoids producing liquid hammer to compressor.Simultaneously automatically controlled heat exchanger 8 the jet mass dryness fraction that can improve puff prot c is set, improve operational reliability and the overall performance of cold and warm type air-conditioning system A.
In the utility model embodiment, gas-liquid separation device 9 can be fluid reservoir, and gas-liquid separation device 9 also can be gas-liquid separator, does not do concrete restriction here.
The structure type of throttling arrangement also can be multiple, 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.
Particularly, first throttle device 6 and the second throttling arrangement 7 also can be respectively capillary, and as shown in Figure 5, first throttle device 6 and the second throttling arrangement 7 can be respectively electric expansion valve.
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 liquid outlet p is connected between the second throttling arrangement 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 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 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 and enter next circulation; Second tunnel: flow through automatically controlled heat exchanger 8 again through the gaseous coolant that gas-liquid separation device 9 secondary separations → secondary separation goes out by the gas separated in flash vessel 5, suck the puff prot c of air injection enthalpy-increasing compressor 1 → with the first via and to be entered after the gas and vapor permeation be compressed to a certain degree compresses by gas returning port b again and discharge in automatically controlled heat exchanger 8 with after electric control element heat exchange → complete, enter next circulation.
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 carries 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 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 and enter next circulation; Second tunnel: flow through automatically controlled heat exchanger 8 again through the gaseous coolant that gas-liquid separation device 9 secondary separations → secondary separation goes out by the gas separated in flash vessel 5, suck the puff prot c of air injection enthalpy-increasing compressor 1 → with the first via and to be entered after the gas and vapor permeation be compressed to a certain degree compresses by gas returning port b again and discharge in automatically controlled heat exchanger 8 with after electric control element heat exchange → complete, enter next circulation.
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, gas-liquid separation device 9 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.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.
Gas-liquid separation device 9 comprises import k, liquid outlet p and gas vent q, and import k is connected with the 3rd interface j, and liquid outlet p is connected between the second throttling arrangement 7 and flash vessel 5, or liquid outlet p is connected between indoor heat exchanger 4 and flash vessel 5.
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.
Particularly, air injection enthalpy-increasing compressor 1, indoor heat exchanger 4, outdoor heat exchanger 3 and first throttle device 6, second throttling arrangement 7 limit kind of refrigeration cycle path for the refrigerant that circulates.Flash vessel 5, gas-liquid separation device 9 and automatically controlled heat exchanger 8 are 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 cold and warm type air-conditioning system A cardinal principle, repeats no more here.
And in single cold type air-conditioning system B, liquid outlet p can be connected between indoor heat exchanger 4 and flash vessel 5.
In single cold type air-conditioning system B, gas-liquid separation device 9 can be fluid reservoir, and gas-liquid separation device 9 also can be gas-liquid separator.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 automatically controlled heat exchanger 8 of connecting between flash vessel 5 and the puff prot c of air injection enthalpy-increasing compressor 1, the isolated gaseous coolant of flash vessel 5 can flow through automatically controlled heat exchanger 8 to dispel the heat to electric control element, effectively can ensure normal work during electric control element high temperature, ensure that service life and the use safety of electric control element.By being arranged in series gas-liquid separation device 9 between flash vessel 5 and automatically controlled heat exchanger 8, secondary gas-liquid separation can improve the gaseous state content of jet refrigerant, avoids producing liquid hammer to compressor.Simultaneously automatically controlled heat exchanger 8 the jet mass dryness fraction that can improve puff prot c is set, improve operational reliability and the overall performance of single cold type air-conditioning system B.
In the description of this description, specific features, structure, material or feature that the description of reference term " some embodiments ", " 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.
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 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;
Gas-liquid separation device, described gas-liquid separation device comprises import, liquid outlet and gas vent, described import is connected with described 3rd interface, described liquid outlet is connected between described second throttling arrangement and described flash vessel, or described liquid outlet is connected between described first throttle device and described flash vessel;
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 gas vent and described puff prot.
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 gas-liquid separation device is fluid reservoir or gas-liquid separator.
9. cold and warm type air-conditioning system according to claim 1, is characterized in that, described liquid outlet is connected between described second throttling arrangement and described flash vessel.
10. 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;
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;
Gas-liquid separation device, described gas-liquid separation device comprises import, liquid outlet and gas vent, described import is connected with described 3rd interface, described liquid outlet is connected between described second throttling arrangement and described flash vessel, or described liquid outlet is connected between described indoor heat exchanger and described flash vessel;
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 gas vent and described puff prot.
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| CN201520633308.XU CN204962968U (en) | 2015-08-20 | 2015-08-20 | Changes in temperature type air conditioning system and single cold mould air conditioning system |
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| CN106016505A (en) * | 2016-06-12 | 2016-10-12 | 青岛海尔空调器有限总公司 | Cooling device for air conditioner circuit board |
| CN106766001A (en) * | 2017-02-04 | 2017-05-31 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioning, device and air-conditioning |
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| CN106016505A (en) * | 2016-06-12 | 2016-10-12 | 青岛海尔空调器有限总公司 | Cooling device for air conditioner circuit board |
| WO2017215281A1 (en) * | 2016-06-12 | 2017-12-21 | 青岛海尔空调器有限总公司 | Cooling device for air conditioner circuit board |
| CN106016505B (en) * | 2016-06-12 | 2019-05-31 | 青岛海尔空调器有限总公司 | Air conditioning circuit board cooling device |
| US10976062B2 (en) | 2016-06-12 | 2021-04-13 | Qingdao Haier Air Conditioner General Corp., Ltd. | Cooling device for air conditioner circuit board |
| CN106766001A (en) * | 2017-02-04 | 2017-05-31 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioning, device and air-conditioning |
| CN106871344A (en) * | 2017-02-04 | 2017-06-20 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioning, device and air-conditioning |
| WO2018141151A1 (en) * | 2017-02-04 | 2018-08-09 | 海尔集团公司 | Air conditioner control method, device and air conditioner |
| CN106871344B (en) * | 2017-02-04 | 2019-09-03 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioning, device and air-conditioning |
| CN106766001B (en) * | 2017-02-04 | 2019-09-03 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioning, device and air-conditioning |
| CN113587253A (en) * | 2021-07-05 | 2021-11-02 | 青岛海信日立空调系统有限公司 | Air conditioner |
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