CN104930612A - Outdoor unit of heat recovery multi-connected air conditioner and heat recovery multi-connected air conditioner with outdoor unit - Google Patents
Outdoor unit of heat recovery multi-connected air conditioner and heat recovery multi-connected air conditioner with outdoor unit Download PDFInfo
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- CN104930612A CN104930612A CN201510151691.XA CN201510151691A CN104930612A CN 104930612 A CN104930612 A CN 104930612A CN 201510151691 A CN201510151691 A CN 201510151691A CN 104930612 A CN104930612 A CN 104930612A
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- check valve
- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a heat recovery multi-connected air conditioner and an outdoor unit thereof. The outdoor unit comprises multiple one-way valves. The connecting end of the first one-way valve is connected with a fourth valve port, and the stopping end of the first one-way valve is connected with an outdoor heat exchanger. The connecting end of the second one-way valve is connected with a first port, and the stopping end of the second one-way valve is connected with a third valve port. The connecting end of the third one-way valve is connected between the second one-way valve and the first port, and the stopping end of the third one-way valve is connected with the outdoor heat exchanger. The connecting end of the fourth one-way valve is connected with the outdoor heat exchanger, and the stopping end of the fourth one-way valve is connected with a second port. The connecting end of the fifth one-way valve is connected between the second one-way valve and the third valve port, and the stopping end of the fifth one-way valve is connected between the fourth one-way valve and the second port. The connecting end of the sixth one-way valve is connected between the fourth one-way valve and the outdoor heat exchanger, and the stopping end of the sixth one-way valve is connected between the first one-way valve and a fourth valve port. The outdoor unit is provided with a simple refrigerant flow path.
Description
Technical field
The present invention relates to refrigerating field, especially relate to a kind of off-premises station of heat-reclamation multi-compressors and there is its heat-reclamation multi-compressors.
Background technology
Along with the development of air-conditioning technical and the reinforcement of people's environmental protection concept, heat-reclamation multi-compressors is more and more subject to the welcome in market.Traditional flow path designs is generally by commutation switch between components, and the entirety realizing cooling system heat-production functions switches, and cannot meet the demand of cooling and warming while of heat-reclamation multi-compressors; And global design done by heat exchanger more, volume is single, cannot meet flexible, the accurate control mode of multi-connected machine.The existing stream that can meet at above 2 is often comparatively complicated.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.
For this reason, the present invention proposes a kind of off-premises station of heat-reclamation multi-compressors, and control simple, the refrigerant flow of off-premises station is simple.
The present invention also proposes a kind of heat-reclamation multi-compressors with above-mentioned off-premises station.
According to the off-premises station of the heat-reclamation multi-compressors of the embodiment of the present invention, described off-premises station has first interface and the second interface, and described off-premises station comprises: compressor, and described compressor has exhaust outlet and gas returning port; Commutation assembly, described commutation assembly has first to fourth valve port, and described first valve port is connected with described exhaust outlet, and described second valve port is connected with described gas returning port, and described 3rd valve port is connected with described first interface; Outdoor heat exchanger, the first end of described outdoor heat exchanger is connected with described 4th valve port, and the second end of described outdoor heat exchanger is connected with described second interface; multiple check valve, each described check valve has conduction terminal and cut-off end, each described check valve from described conduction terminal to described cut-off end direction on one-way conduction, described multiple check valve comprises the first to the 6th check valve, the conduction terminal of the first check valve is connected with described 4th valve port and the cut-off end of described first check valve is connected with the first end of described outdoor heat exchanger, the conduction terminal of the second check valve is connected with described first interface and the cut-off end of described second check valve is connected with described 3rd valve port, the conduction terminal of the 3rd check valve is connected between described second check valve and described first interface and the cut-off end of described 3rd check valve is connected with the first end of described outdoor heat exchanger, the conduction terminal of the 4th check valve is connected with the second end of described outdoor heat exchanger and the cut-off end of described 4th check valve is connected with described second interface, the conduction terminal of the 5th check valve is connected between described second check valve and described 3rd valve port and the cut-off end of described 5th check valve is connected between described 4th check valve and described second interface, the conduction terminal of the 6th check valve is connected between described 4th check valve and described outdoor heat exchanger and the cut-off end of described 6th check valve is connected between described first check valve and described 4th valve port.
According to the off-premises station of the heat-reclamation multi-compressors of the embodiment of the present invention, can ensure that the refrigerant in off-premises station all flows to part flow arrangement from the second interface, the refrigerant that machine flows out indoor all flows back to off-premises station from first interface, thus no matter which kind of pattern heat-reclamation multi-compressors runs, the refrigerant of off-premises station all exports from the same side, can not only meet the functional requirement that heat-reclamation multi-compressors heats simultaneously and freezes, and control simple, the refrigerant flow of off-premises station is simple.
In some embodiments of the invention, described outdoor heat exchanger comprises multiple the first heat exchanger channels be arranged in order under above-below direction, is in series with the first control valve circulating for controlling refrigerant or end between the first end of each described first heat exchanger channels and described first check valve.
Further, off-premises station also comprises multiple 7th check valve, described multiple 7th check valve and described multiple first heat exchanger channels one_to_one corresponding are arranged, and the conduction terminal of each described 7th check valve is connected with the second end of corresponding described first heat exchanger channels and the cut-off end of each described 7th check valve is connected with described 6th check valve.
According to a further embodiment of the invention, described outdoor heat exchanger also comprises the second heat exchanger channels being positioned at bottom, the two ends of described second heat exchanger channels are connected with described second interface with described exhaust outlet respectively, are in series with the second control valve circulating for controlling refrigerant or end between described second heat exchanger channels and described exhaust outlet.
In specific embodiments more of the present invention, off-premises station also comprises current divider, described current divider comprises main entrance and multiple diffluence pass, the cut-off end of described first check valve is connected with described main entrance respectively with the cut-off end of described 3rd check valve, and described multiple diffluence pass is connected correspondingly with described multiple first control valve respectively.
According to some embodiments of the present invention, off-premises station also comprises air supply passage, and the two ends of described air supply passage are connected with described second interface with described exhaust outlet respectively, described air supply passage is in series with the 3rd control valve for controlling refrigerant circulation or cut-off.
Alternatively, described 3rd control valve is magnetic valve.
In some embodiments of the invention, off-premises station also comprises oil eliminator, and described oil eliminator comprises the first entrance, refrigerant exit and oil export, and described first entrance is connected with described exhaust outlet, described refrigerant exit is connected with described first valve port, and described oil export is connected with described gas returning port.
In some embodiments of the invention, off-premises station also comprises gas-liquid separator, and described gas-liquid separator comprises the second entrance and gas vent, and described second entrance is connected with described second valve port, and described gas vent is connected with described gas returning port.
According to the heat-reclamation multi-compressors of the embodiment of the present invention, comprise the off-premises station of heat-reclamation multi-compressors according to the above embodiment of the present invention.
According to the heat-reclamation multi-compressors of the embodiment of the present invention, by being provided with above-mentioned off-premises station, can meet the demand that multiple indoor set freezes simultaneously and heats, structure is simple simultaneously, and stream is simple.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the off-premises station according to the embodiment of the present invention.
Reference numeral:
Off-premises station 1000,
First interface 130, second interface 140,
Compressor 10, exhaust outlet a, gas returning port b,
Commutation assembly 20, first valve port c, the second valve port d, the 3rd valve port e, the 4th valve port f,
Outdoor heat exchanger 30, first heat exchanger channels 301, second heat exchanger channels 302, first check valve 401, second check valve 402, the 3rd check valve 403, the 4th check valve 404, the 5th check valve 405, the 6th check valve 406,
First control valve 50, the 7th check valve 60, second control valve 70, current divider 80, main entrance g, diffluence pass h, air supply passage 90, the 3rd control valve 100, oil eliminator 110, first entrance i, refrigerant exit j, oil export k, gas-liquid separator 120, second entrance l, gas vent m.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
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 at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " 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 or each other can communication; 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, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Below with reference to Fig. 1, the off-premises station 1000 according to the heat-reclamation multi-compressors of the embodiment of the present invention is described, wherein, off-premises station 1000 has first interface 130 and the second interface 140, and off-premises station 1000 becomes heat-reclamation multi-compressors with part flow arrangement with the common assembly of multiple indoor set with the second interface 140 by first interface 130.
Heat-reclamation multi-compressors has pure refrigeration mode, main refrigeration mode, main heating mode and pure heating mode, and the indoor set that pure refrigeration mode refers to operation all carries out refrigeration mode; The indoor set that pure heating mode refers to operation all carries out heating mode; Main refrigeration mode refers to a part of indoor set to carry out freezing and a part of indoor set heats, and cooling load is greater than heating load, and outdoor heat exchanger makees condenser; Main heating mode refers to a part of indoor set and heats and a part of indoor set refrigeration, and heating load is greater than cooling load, and outdoor heat exchanger makees evaporimeter.
According to the off-premises station 1000 of the heat-reclamation multi-compressors of the embodiment of the present invention, comprise: compressor 10, commutation assembly 20, outdoor heat exchanger 30 and multiple check valve, wherein, compressor 10 has exhaust outlet a and gas returning port b, what needs were described is, the structure of compressor 10 and operation principle etc. are prior art, are just not described in detail here.
Commutation assembly 20 has first to fourth valve port c-f, wherein the first valve port c is communicated with one of them in the 4th valve port f with the 3rd valve port e, second valve port d and the 3rd valve port e are communicated with another in the 4th valve port f, that is, when the first valve port c is communicated with the 3rd valve port e, then the second valve port d is communicated with the 4th valve port f, and when the first valve port c is communicated with the 4th valve port f, then the second valve port d is communicated with the 3rd valve port e.Preferably, commutation assembly 20 is cross valve, but is understandable that, commutation assembly 20 can also be formed as other structures, as long as have first to fourth valve port c-f and have commutation function.
First valve port c is connected with exhaust outlet a, and the second valve port d is connected with gas returning port b, and the 3rd valve port e is connected with first interface 130, and the first end of outdoor heat exchanger 30 is connected with the 4th valve port f, and the second end of outdoor heat exchanger 30 is connected with the second interface 140.Be understandable that, off-premises station 1000 can also comprise for the blower fan by wind guide chamber external heat exchanger 30, to accelerate the heat exchange efficiency of outdoor heat exchanger 30.
Each check valve has conduction terminal and cut-off end, each check valve from conduction terminal to cut-off end direction on one-way conduction, that is, refrigerant can only enter in check valve from conduction terminal, and flow out from the cut-off end of check valve, refrigerant cannot enter in check valve from cut-off end, thus check valve can play the effect of one-way conduction.
Multiple check valve comprises the first to the 6th check valve 401-406, the conduction terminal of the first check valve 401 is connected with the 4th valve port f and the cut-off end of the first check valve 401 is connected with the first end of outdoor heat exchanger 30, thus by being provided with the first check valve 401, refrigerant can only flow to the first end of outdoor heat exchanger 30 from the 4th valve port f, and the first end of heat exchanger 30 outdoor can not flow to the 4th valve port f.
The conduction terminal of the second check valve 402 is connected with first interface 130 and the cut-off end of the second check valve 402 is connected with the 3rd valve port e, thus by being provided with the second check valve 402, refrigerant can only flow to the 3rd valve port e from first interface 130, and can not flow to first interface 130 from the 3rd valve port e.
The conduction terminal of the 3rd check valve 403 is connected between the second check valve 402 and first interface 130 and the cut-off end of the 3rd check valve 403 is connected with the first end of outdoor heat exchanger 30, thus by being provided with the 3rd check valve 403, refrigerant can only flow to the first end of outdoor heat exchanger 30 from first interface 130, and the first end of heat exchanger 30 outdoor can not flow to first interface 130.
The conduction terminal of the 4th check valve 404 is connected with the second end of outdoor heat exchanger 30 and the cut-off end of the 4th check valve 404 is connected with the second interface 140, thus by being provided with the 4th check valve 404, refrigerant the second end of heat exchanger 30 outdoor can only flow to the second interface 140, and can not flow to the second end of outdoor heat exchanger 30 from the second interface 140.
The conduction terminal of the 5th check valve 405 is connected between the second check valve 402 and the 3rd valve port e and the cut-off end of the 5th check valve 405 is connected between the 4th check valve 404 and the second interface 140, thus by being provided with the 5th check valve 405, refrigerant can only flow to the second interface 140 from the 3rd valve port e, and can not flow to the 3rd valve port e from the second interface 140.
The conduction terminal of the 6th check valve 406 is connected between the 4th check valve 404 and outdoor heat exchanger 30 and the cut-off end of the 6th check valve 406 is connected between the first check valve 401 and the 4th valve port f.Thus by being provided with the 6th check valve 406, refrigerant the second end of heat exchanger 30 outdoor can only flow to the 4th valve port f, and can not flow to the second end of outdoor heat exchanger 30 from the 4th valve port f.
Be described for the ease of flowing to the refrigerant of off-premises station 1000, below off-premises station 1000 is applied in heat-reclamation multi-compressors and is described, wherein off-premises station 1000 has two kinds of patterns: when heat-reclamation multi-compressors is in pure refrigeration mode, and off-premises station 1000 runs the first pattern.When heat-reclamation multi-compressors is in pure heating mode, off-premises station 1000 runs the second pattern.When multiple indoor set carries out refrigeration mode and heating mode simultaneously, off-premises station 1000 judges according to system, runs the first pattern or the second pattern.
The first pattern: the first valve port c of commutation assembly 20 is communicated with the 4th valve port f and the second valve port d is communicated with the 3rd valve port e, the refrigerant of heat-reclamation multi-compressors flows to and is: compressor 10---the first valve port c of the assembly 20 that commutates---the 4th valve port f of the assembly 20 that commutates---the first check valve 401---outdoor heat exchanger 30---the 4th check valve 404---the second interface 140---part flow arrangement---indoor set---first interface 130---the second check valve 402---the 3rd valve port e of the assembly 20 that commutates---second valve port d of the assembly 20 that commutates---compressor 10.
The second pattern: the first valve port c of commutation assembly 20 is communicated with the 3rd valve port e and the second valve port d is communicated with the 4th valve port f, when heat-reclamation multi-compressors is pure heating mode, the refrigerant of heat-reclamation multi-compressors flows to and is: compressor 10---the first valve port c of commutation assembly 20---the 3rd valve port e of commutation assembly 20---the 5th check valve 405---the second interface 140---part flow arrangement---indoor set---first interface 130---the 3rd check valve 403---outdoor heat exchanger 30---the 6th check valve 406---the 4th valve port f of commutation assembly 20---second valve port d of commutation assembly 20---compressor 10.
When heat-reclamation multi-compressors is main heating mode, the high pressure gaseous refrigerant that off-premises station 1000 is discharged first goes to through part flow arrangement and heats the liquid refrigerants that indoor set is condensed into HTHP, then two-way is divided, a part goes the evaporation of refrigeration indoor set, part throttling in part flow arrangement, then two-way converges and gets back to outdoor unit heat exchanger 30 and evaporate, and then gets back to compressor 10.
Simultaneously as above-mentioned known, when to there is the indoor set of refrigeration and heating mode demand simultaneously, no matter off-premises station 1000 is the first pattern or the second pattern, heat-reclamation multi-compressors is when main refrigeration mode, off-premises station all exports the refrigerant of gas-liquid mixed state in part flow arrangement, carry out gas-liquid separation by part flow arrangement, overheated gaseous coolant enters mechanism heat in heating chamber, and supercooled liquid refrigerant enters mechanism cold in cool room.Heat-reclamation multi-compressors is when pure heating mode or main heating mode, and the refrigerant that machine exports outdoor is the gaseous coolant of HTHP.Heat-reclamation multi-compressors is when pure refrigeration mode, and what off-premises station exported is liquid refrigerants.First to the 6th check valve 401-406 not only plays separated flow passages effect, can also guarantee that the refrigerant of off-premises station 1000 enters into part flow arrangement by the second interface 140.
According to the off-premises station 1000 of the heat-reclamation multi-compressors of the embodiment of the present invention, by being provided with the first check valve 401 to the 6th check valve 406, coordinate the commutation effect of commutation assembly 20 simultaneously, can ensure that the refrigerant in off-premises station 1000 all flows to part flow arrangement from the second interface 140, the refrigerant that machine flows out indoor all flows back to off-premises station 1000 from first interface 130, thus no matter which kind of pattern heat-reclamation multi-compressors runs, the refrigerant of off-premises station 1000 all exports from the same side, the functional requirement that heat-reclamation multi-compressors heats simultaneously and freezes can not only be met, and control simple, the refrigerant flow of off-premises station 1000 is simple.
In some embodiments of the invention, as shown in Figure 1, outdoor heat exchanger 30 comprises multiple the first heat exchanger channels 301 be arranged in order under above-below direction, is in series with the first control valve 50 circulating for controlling refrigerant or end between the first end of each first heat exchanger channels 301 and the first check valve 401.That is, the service condition of each first heat exchanger channels 301 is controlled by corresponding first control valve 50, the service condition of each first heat exchanger channels 301 is uncorrelated mutually with the service condition of remaining the first heat exchanger channels 301, can by controlling the unlatching situation of multiple first control valve 50, thus control the use number of multiple first heat exchanger channels 301, and then the volume of adjustment outdoor heat exchanger 30, coordinate compressor 10, blower fan and part flow arrangement regulate the refrigerant state of the second interface 140, multiple first heat exchanger channels 301 uses simultaneously can meet large ability need, only use first heat exchanger channels 301 can meet little ability need.In brief, outdoor heat exchanger 30 can control by piecemeal, can meet different ability needs, make control more accurate.Alternatively, each first control valve 50 can magnetic valve.
Further, off-premises station 1000 also comprises multiple 7th check valve 60, multiple 7th check valve 60 is arranged with multiple first heat exchanger channels 301 one_to_one corresponding, and the conduction terminal of each 7th check valve 60 is connected with the second end of the first corresponding heat exchanger channels 301 and the cut-off end of each 7th check valve 60 is connected with the 6th check valve 406.That is, corresponding 7th check valve 60 of first heat exchanger channels 301, refrigerant can only enter in the 7th check valve 60 from the conduction terminal of the 7th check valve 60 and flow out from the cut-off end of the 7th check valve 60, and can not from cut-off end inflow the 7th check valve 60 of the 7th check valve 60, by being provided with the 7th check valve 60, refrigerant can only flow to the 6th check valve 406 from the first heat exchanger channels 301, and the first heat exchanger channels 301 can not be flowed to from the 6th check valve 406, thus ensure off-premises station 1000 reliability of operation further.
As shown in Figure 1, in further embodiment of the present invention, outdoor heat exchanger 30 also comprises the second heat exchanger channels 302 being positioned at bottom, the two ends of the second heat exchanger channels 302 are connected with the second interface 140 with exhaust outlet a respectively, are in series with the second control valve 70 circulating for controlling refrigerant or end between the second heat exchanger channels 302 and exhaust outlet a.That is, when being controlled refrigerant by the second control valve 70 and being negotiable, refrigerant in compressor 10 directly can be drained into the second heat exchanger channels 302 from exhaust outlet a and carry out heat exchange, refrigerant after heat exchange is drained into part flow arrangement from the second interface 140, thus when outdoor heat exchanger 30 defrosts, by the refrigerant of HTHP being directly drained in the second heat exchanger channels 302, when the cold water after outdoor heat exchanger 30 defrost is dirty, heated by the refrigerant of HTHP in the bottom of outdoor heat exchanger 30, aqueous water after defrost can directly be spilt from the water hole on the chassis be positioned at below outdoor heat exchanger 30, and potential safety hazard can not be caused because of icing blocking water hole.
As shown in Figure 1, in further embodiment of the present invention, off-premises station 1000 also comprises current divider 80, current divider 80 comprises main entrance g and multiple diffluence pass h, the cut-off end of the first check valve 401 is connected with main entrance g respectively with the cut-off end of the 3rd check valve 403, and multiple diffluence pass h is connected correspondingly with multiple first control valve 50 respectively.Thus by being provided with current divider 80, being convenient to multiple first control valve 50 and being connected with the 3rd check valve 403 with the first check valve 401, the structure of off-premises station 1000 can be simplified, be convenient to the assembling of off-premises station 1000.
According to some embodiments of the present invention, as shown in Figure 1, off-premises station 1000 also comprises air supply passage 90, and the two ends of air supply passage 90 are connected with the second interface 140 with exhaust outlet a respectively, air supply passage 90 is in series with the 3rd control valve 100 for controlling refrigerant circulation or cut-off.Alternatively, the 3rd control valve 100 is magnetic valve.
Thus when opening the 3rd control valve 100, the refrigerant of discharging from the exhaust outlet a of compressor 10 directly can flow to the second interface 140 to discharge off-premises station 1000.Therefore when off-premises station 1000 runs the first pattern and the demand of heat-reclamation multi-compressors is less, can by closedown first control valve 50 and Close All outdoor heat exchanger 30, the refrigerant of now discharging from the exhaust outlet a of compressor 10 only flows to the second interface 140 by the 3rd control valve 100, meets less ability need by regulating the aperture of the 3rd control valve 100.
Simultaneously by being provided with air supply passage 90, when off-premises station 1000 runs the first pattern, suitable gaseous coolant can be supplemented to heating indoor set by the adjustment of the 3rd control valve 100.
As shown in Figure 1, in specific embodiments more of the present invention, off-premises station 1000 also comprises oil eliminator 110, oil eliminator 110 comprises the first entrance i, refrigerant exit j and oil export k, first entrance i is connected with exhaust outlet a, refrigerant exit j is connected with the first valve port c, and oil export k is connected with gas returning port b.Thus by being in series with oil eliminator 110 between compressor 10 and the first valve port c, enter into oil eliminator 110 from the refrigerant being mixed with lubricating oil of exhaust outlet a discharge to be separated, the lubricating oil separated is expelled back in compressor 10 by oil export k and gas returning port b, the refrigerant separated enters commutation assembly 20 from refrigerant exit j, and then the lubricating oil of discharging compressor 10 can be recycled, avoid compressor 10 to break down because oil starvation runs, improve the operational reliability of off-premises station 1000.
In some embodiments of the invention, as shown in Figure 1, off-premises station 1000 also comprises gas-liquid separator 120, and gas-liquid separator 120 comprises the second entrance l and gas vent m, and the second entrance l is connected with the second valve port d, and gas vent m is connected with gas returning port b.Thus by being provided with gas-liquid separator 120, enter into gas-liquid separator 120 from the refrigerant of the second valve port d discharge and carry out gas-liquid separation, the gaseous coolant separated is drained into compressor 10 from gas vent m, can avoid compressor 10 that liquid hit phenomenon occurs, improve the operational reliability of off-premises station 1000.
Below with reference to Fig. 1, the off-premises station 1000 according to the specific embodiment of the invention is described.
As shown in Figure 1, off-premises station 1000 comprises compressor 10, cross valve 20, first check valve 401 to the 7th check valve 60, outdoor heat exchanger 30, multiple first control valve 50, second control valve 70, air supply passage 90, the 3rd control valve 100, current divider 80, oil eliminator 110, gas-liquid separator 120, first interface 130 and the second interface 140.
Wherein cross valve 20 has the first valve port c to the 4th valve port f, the exhaust outlet a of compressor 10 is connected with the first entrance i of oil eliminator 110, the refrigerant exit j of oil eliminator 110 is connected with the first valve port c, the oil export k of oil eliminator 110 is connected with gas returning port b, second entrance l of gas-liquid separator 120 is connected with the second valve port d, and the gas vent m of gas-liquid separator 120 is connected with the gas returning port b of compressor 10.3rd valve port e is connected with first interface 130, and the main entrance g of current divider 80 is connected with the 4th valve port f, is in series with between the first check valve the 401, three valve port e and first interface 130 and is in series with the second check valve 402 between the main entrance g of current divider 80 and the 4th valve port f.
Outdoor heat exchanger 30 comprises multiple first heat exchanger channels 301 and second heat exchanger channels 302, second heat exchanger channels 302 is positioned at the below of multiple first heat exchanger channels 301, multiple diffluence pass h of current divider 80 are connected with the first end of multiple first heat exchanger channels 301 respectively, are in series with the first control valve 50 between each first heat exchanger channels 301 and a corresponding diffluence pass h.Second heat exchanger channels 302 is connected with the refrigerant exit j of oil eliminator 110 by the second control valve 70, and the second heat exchanger channels 302 is also connected with the second interface 140.
Second end of each first heat exchanger channels 301 is connected with the 7th check valve 60, and multiple 7th check valve 60 is connected with the 4th check valve 404 respectively, and the 4th check valve 404 is also connected with the second interface 140.
The cut-off end of the 3rd check valve 403 is connected with the main entrance g of current divider 80, the conduction terminal of the 3rd check valve 403 is connected between the second check valve 402 and first interface 130, the conduction terminal of the 5th check valve 405 is connected between the second check valve 402 and the 3rd valve port e, and the cut-off end of the 5th check valve 405 is connected between the 4th check valve 404 and the second interface 140.
The conduction terminal of the 6th check valve 406 is connected with multiple 7th check valve 60, and the cut-off end of the 6th check valve 406 is connected with the 4th valve port f.
The two ends of air supply passage 90 are connected with the second interface 140 with the refrigerant exit j of oil eliminator 110 respectively, and the 3rd control valve 100 is connected on air supply passage 90 for controlling opening or closing of air supply passage 90.
When off-premises station 1000 runs the first pattern, the first valve port c of cross valve 20 is communicated with the 4th valve port f and the second valve port d is communicated with the 3rd valve port e, and the second control valve 70 is closed, and multiple first control valve 50 is according to control and regulation.Refrigerant flows to: compressor 10---oil eliminator 110---cross valve 20---the first check valve 401---current divider 80---the first heat exchanger channels 301 of outdoor heat exchanger 30---the 7th check valve 60---the 4th check valve 404---the second interface 140---part flow arrangement---indoor set---first interface 130---the second check valve 402---cross valve 20---gas-liquid separator 120---compressor 10.
Wherein in the first pattern, when heat-reclamation multi-compressors is in pure refrigeration mode, the 3rd control valve 100 is in closed condition.When heat-reclamation multi-compressors is in main refrigeration mode, 3rd control valve 100 also can need to open according to control, what flow through from the 3rd control valve 100 is gaseous coolant, the mainly liquid refrigerants that flows through of heat exchanger 30 outdoor, both gas-liquid separations in part flow arrangement, gaseous coolant goes to heat indoor set, and liquid refrigerants removes the indoor set that freezes, also removing from heating indoor set liquid refrigerants out the indoor set that freezes, after evaporation, returning off-premises station.In brief, when the 3rd control valve 100 is opened, suitable gaseous coolant can be supplemented to heating in indoor set, to play the effect of tonifying Qi.
When off-premises station 1000 runs the second pattern, first valve port c of cross valve 20 is communicated with the 3rd valve port e and the second valve port d is communicated with the 4th valve port f, 3rd control valve 100 is opened, second control valve 70 is closed, multiple first control valve 50 is according to control and regulation, the refrigerant of discharging from compressor 10 enters into oil eliminator 110, and the high pressure gaseous refrigerant of discharging from the refrigerant exit j of oil eliminator 110 is drained into part flow arrangement by cross valve 20, the 5th check valve 405 and the second interface 140.When heat-reclamation multi-compressors is pure heating mode, refrigerant flows to and is: part flow arrangement---indoor set---first interface 130---the 3rd check valve 403---multiple first heat exchanger channels 301 of outdoor heat exchanger 30---the 7th check valve 60---the 6th check valve 406---cross valve 20---gas-liquid separator 120---compressor 10.
When heat-reclamation multi-compressors is main heating mode, the high pressure gaseous refrigerant that off-premises station 1000 is discharged first goes to through part flow arrangement and heats the liquid refrigerants that indoor set is condensed into HTHP, then two-way is divided, a part goes the evaporation of refrigeration indoor set, part throttling in part flow arrangement, then two-way converges and gets back to outdoor unit heat exchanger 30 and evaporate, and then gets back to compressor 10.
Wherein when outdoor heat exchanger 30 carries out in the process defrosted, second control valve 70 is opened, directly enter in the second heat exchanger channels 302 from the gaseous coolant of the HTHP of compressor 10 discharge and the cold water that defrost produces is heated, to avoid the water hole blocking chassis because of water freezing.
Wherein the first check valve 401 not only plays the effect of separated flow passages to the 7th check valve 60, can also guarantee that off-premises station 1000 refrigerant enters into part flow arrangement by the second interface 140.
Outdoor heat exchanger 30 can pass through multiple first control valve 50 of break-make, the volume of conditioning chamber external heat exchanger 30, coordinates compressor 10, blower fan and part flow arrangement to regulate the refrigerant state of the second interface 140.
The piecemeal of multiple first heat exchanger channels 301 of outdoor heat exchanger 30 controls to realize different ability need simultaneously, and multiple first heat exchanger channels 301 uses simultaneously and meets large ability need, only has first heat exchanger channels 301 to use and meets little ability need.When less ability need by closing multiple first control valve 50, the first whole heat exchanger channels 301 can being closed, by regulating the 3rd control valve 100 to meet less ability need, thus lower cryogenic refrigeration scope can be reached.
According to the heat-reclamation multi-compressors of the embodiment of the present invention, comprise the off-premises station 1000 of heat-reclamation multi-compressors according to the above embodiment of the present invention.
According to the heat-reclamation multi-compressors of the embodiment of the present invention, by being provided with above-mentioned off-premises station 1000, can meet the demand that multiple indoor set freezes simultaneously and heats, structure is simple simultaneously, and stream is simple.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
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 invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. an off-premises station for heat-reclamation multi-compressors, is characterized in that, described off-premises station has first interface and the second interface, and described off-premises station comprises:
Compressor, described compressor has exhaust outlet and gas returning port;
Commutation assembly, described commutation assembly has first to fourth valve port, and described first valve port is connected with described exhaust outlet, and described second valve port is connected with described gas returning port, and described 3rd valve port is connected with described first interface;
Outdoor heat exchanger, the first end of described outdoor heat exchanger is connected with described 4th valve port, and the second end of described outdoor heat exchanger is connected with described second interface;
Multiple check valve, each described check valve has conduction terminal and cut-off end, each described check valve from described conduction terminal to described cut-off end direction on one-way conduction, described multiple check valve comprises the first to the 6th check valve, the conduction terminal of the first check valve is connected with described 4th valve port and the cut-off end of described first check valve is connected with the first end of described outdoor heat exchanger, the conduction terminal of the second check valve is connected with described first interface and the cut-off end of described second check valve is connected with described 3rd valve port, the conduction terminal of the 3rd check valve is connected between described second check valve and described first interface and the cut-off end of described 3rd check valve is connected with the first end of described outdoor heat exchanger, the conduction terminal of the 4th check valve is connected with the second end of described outdoor heat exchanger and the cut-off end of described 4th check valve is connected with described second interface, the conduction terminal of the 5th check valve is connected between described second check valve and described 3rd valve port and the cut-off end of described 5th check valve is connected between described 4th check valve and described second interface, the conduction terminal of the 6th check valve is connected between described 4th check valve and described outdoor heat exchanger and the cut-off end of described 6th check valve is connected between described first check valve and described 4th valve port.
2. the off-premises station of heat-reclamation multi-compressors according to claim 1, it is characterized in that, described outdoor heat exchanger comprises multiple the first heat exchanger channels be arranged in order under above-below direction, is in series with the first control valve circulating for controlling refrigerant or end between the first end of each described first heat exchanger channels and described first check valve.
3. the off-premises station of heat-reclamation multi-compressors according to claim 2, it is characterized in that, also comprise multiple 7th check valve, described multiple 7th check valve and described multiple first heat exchanger channels one_to_one corresponding are arranged, and the conduction terminal of each described 7th check valve is connected with the second end of corresponding described first heat exchanger channels and the cut-off end of each described 7th check valve is connected with described 6th check valve.
4. the off-premises station of heat-reclamation multi-compressors according to claim 2, it is characterized in that, described outdoor heat exchanger also comprises the second heat exchanger channels being positioned at bottom, the two ends of described second heat exchanger channels are connected with described second interface with described exhaust outlet respectively, are in series with the second control valve circulating for controlling refrigerant or end between described second heat exchanger channels and described exhaust outlet.
5. the off-premises station of heat-reclamation multi-compressors according to claim 2, it is characterized in that, also comprise current divider, described current divider comprises main entrance and multiple diffluence pass, the cut-off end of described first check valve is connected with described main entrance respectively with the cut-off end of described 3rd check valve, and described multiple diffluence pass is connected correspondingly with described multiple first control valve respectively.
6. the off-premises station of the heat-reclamation multi-compressors according to any one of claim 1-5, it is characterized in that, also comprise air supply passage, the two ends of described air supply passage are connected with described second interface with described exhaust outlet respectively, described air supply passage are in series with the 3rd control valve for controlling refrigerant circulation or cut-off.
7. the off-premises station of heat-reclamation multi-compressors according to claim 6, is characterized in that, described 3rd control valve is magnetic valve.
8. the off-premises station of heat-reclamation multi-compressors according to claim 1, it is characterized in that, also comprise oil eliminator, described oil eliminator comprises the first entrance, refrigerant exit and oil export, described first entrance is connected with described exhaust outlet, described refrigerant exit is connected with described first valve port, and described oil export is connected with described gas returning port.
9. the off-premises station of heat-reclamation multi-compressors according to claim 1, it is characterized in that, also comprise gas-liquid separator, described gas-liquid separator comprises the second entrance and gas vent, described second entrance is connected with described second valve port, and described gas vent is connected with described gas returning port.
10. a heat-reclamation multi-compressors, is characterized in that, comprises the off-premises station of the heat-reclamation multi-compressors according to any one of claim 1-9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969524A (en) * | 2016-12-29 | 2017-07-21 | 广东美的暖通设备有限公司 | The balance method of air-conditioning pressure balance system and air-conditioning pressure difference |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007097674A1 (en) * | 2006-02-22 | 2007-08-30 | Nibe Ab | One-way valve and window with heat recovery means |
| CN200943972Y (en) * | 2006-08-22 | 2007-09-05 | 珠海格力电器股份有限公司 | Heat recovery type multi-compressors |
| CN202303691U (en) * | 2011-10-27 | 2012-07-04 | 广东美的电器股份有限公司 | Outdoor unit of multi-connected unit of air conditioner |
| CN103277935A (en) * | 2013-05-29 | 2013-09-04 | 郑新 | Air conditioning equipment with hot water and illumination |
| CN204534896U (en) * | 2015-03-31 | 2015-08-05 | 广东美的暖通设备有限公司 | The off-premises station of heat-reclamation multi-compressors and there is its heat-reclamation multi-compressors |
-
2015
- 2015-03-31 CN CN201510151691.XA patent/CN104930612B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007097674A1 (en) * | 2006-02-22 | 2007-08-30 | Nibe Ab | One-way valve and window with heat recovery means |
| CN200943972Y (en) * | 2006-08-22 | 2007-09-05 | 珠海格力电器股份有限公司 | Heat recovery type multi-compressors |
| CN202303691U (en) * | 2011-10-27 | 2012-07-04 | 广东美的电器股份有限公司 | Outdoor unit of multi-connected unit of air conditioner |
| CN103277935A (en) * | 2013-05-29 | 2013-09-04 | 郑新 | Air conditioning equipment with hot water and illumination |
| CN204534896U (en) * | 2015-03-31 | 2015-08-05 | 广东美的暖通设备有限公司 | The off-premises station of heat-reclamation multi-compressors and there is its heat-reclamation multi-compressors |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969524A (en) * | 2016-12-29 | 2017-07-21 | 广东美的暖通设备有限公司 | The balance method of air-conditioning pressure balance system and air-conditioning pressure difference |
| CN106969524B (en) * | 2016-12-29 | 2020-06-26 | 广东美的暖通设备有限公司 | Air conditioner differential pressure balancing system and air conditioner differential pressure balancing method |
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| CN104930612B (en) | 2018-03-16 |
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Application publication date: 20150923 Assignee: HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. Assignor: Guangdong Midea HVAC Equipment Co., Ltd.|Midea Group Co., Ltd. Contract record no.: 2019990000119 Denomination of invention: Outdoor unit of heat recovery multi-connected air conditioner and heat recovery multi-connected air conditioner with outdoor unit Granted publication date: 20180316 License type: Common License Record date: 20190415 |