CN203797793U - Multi-split air conditioning unit - Google Patents
Multi-split air conditioning unit Download PDFInfo
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- CN203797793U CN203797793U CN201420138989.8U CN201420138989U CN203797793U CN 203797793 U CN203797793 U CN 203797793U CN 201420138989 U CN201420138989 U CN 201420138989U CN 203797793 U CN203797793 U CN 203797793U
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Abstract
The utility model provides a multi-split air conditioning unit comprising a compressor, an outdoor unit heat exchanger, a first coolant water heat exchanger, and a second coolant water heat exchanger. The compressor is provided with a coolant first inlet and a coolant first outlet. The outdoor unit heat exchanger is provided with a coolant first access port and a coolant second access port; the coolant first access port is connected with both the coolant first inlet and the coolant first outlet. The first coolant water heat exchanger is provided with a coolant third access port, a coolant fourth access port, a heat exchange liquid first inlet and a heat exchange liquid first outlet. The second coolant water heat exchanger is provided with a coolant fifth access port, a coolant sixth access port, a water inlet and a water outlet; the coolant fifth access port and the coolant first outlet can be communicated in a connected state and be isolated in a disconnected state, and/or the coolant sixth access port and the coolant second access port can be communicated in a connected state and be isolated in a disconnected state. The multi-split air conditioning unit is higher in utilization rate.
Description
Technical field
The utility model relates to air-conditioner technical field, in particular to a kind of VRF Air Conditioning System.
Background technology
At present, because multi-connected air conditioner (heat pump) unit has off-premises station, concentrate placement, the flexile feature of interior machine, be widely used in commercial and family expenses occasion.But when heating or lowering the temperature, VRF Air Conditioning System quits work, and causes this VRF Air Conditioning System on the shelf when indoor, therefore, the utilization ratio of this VRF Air Conditioning System is lower.
Utility model content
The utility model aims to provide the more much higher formula air-conditioning of a kind of utilization ratio unit.
To achieve these goals, the utility model provides a kind of VRF Air Conditioning System, comprising: compressor, has refrigerant the first import and refrigerant the first outlet; Outdoor unit heat exchanger, having refrigerant the first import and export and refrigerant second imports and exports, refrigerant first is imported and exported respectively and is exported and be connected with refrigerant first with refrigerant the first import, and refrigerant the first import is is all imported and exported and had the channel status being connected and the off state of blocking mutually with refrigerant first with refrigerant the first outlet; VRF Air Conditioning System also comprises: the first chilled water heat exchanger, there is refrigerant the 3rd import and export, refrigerant the 4th import and export, the first import of heat exchange liquid and the first outlet of heat exchange liquid, refrigerant the 3rd is imported and exported respectively and is exported and be connected with refrigerant first with refrigerant the first import, refrigerant the first import is is all imported and exported and is had the channel status being connected and the off state of blocking mutually with refrigerant the 3rd with refrigerant the first outlet, and refrigerant the 4th is imported and exported with refrigerant second and imported and exported and be connected; The second chilled water heat exchanger, there is refrigerant the 5th import and export, refrigerant the 6th import and export, water inlet and delivery port, refrigerant the 5th is imported and exported with refrigerant the first outlet and is connected, refrigerant the 6th import and export are imported and exported and are connected with refrigerant second, and refrigerant the 5th import and export have the channel status being connected and the off state of blocking mutually and/or refrigerant the 6th import and export with refrigerant the first outlet and import and export and have the channel status being connected and the off state of blocking mutually with refrigerant second.
Further, refrigerant the 6th is imported and exported with refrigerant the 4th and is imported and exported and be connected and have the channel status being connected and the off state of blocking mutually.
Further, refrigerant the 4th is imported and exported with refrigerant second and is imported and exported and have the channel status being connected and the off state of blocking mutually.
Further, refrigerant the 5th is imported and exported and is connected with refrigerant the first outlet and has the channel status being connected and the off state of blocking mutually.
Further, VRF Air Conditioning System of the present utility model also comprises: reversing arrangement, refrigerant first is imported and exported by this reversing arrangement and is exported and be connected with refrigerant first with refrigerant the first import respectively, and refrigerant the 3rd is imported and exported by this reversing arrangement and exported and be connected with refrigerant first with refrigerant the first import respectively.
Further, reversing arrangement comprises: cross valve, has four links; Four tube connectors, connect one to one with four links, and four links are imported and exported and connected one to one by corresponding tube connector and refrigerant the first import, refrigerant the first outlet, refrigerant the first import and export and refrigerant the 3rd respectively.
Further, refrigerant the 4th is imported and exported by refrigerant the 3rd conduit and is imported and exported and be connected with refrigerant second, is provided with the first switching device to realize refrigerant the 4th and import and export and refrigerant the second import and export are changed between channel status and off state on refrigerant the 3rd conduit.
Further, refrigerant the 5th is imported and exported by refrigerant the first conduit and is connected with refrigerant the first outlet; Refrigerant the 6th is imported and exported and by refrigerant the second conduit and the middle part of refrigerant the 3rd conduit, is connected to realize refrigerant the 6th and imports and exports and be connected with refrigerant the second import and export and refrigerant the 6th import and export are connected with refrigerant the 4th import and export; On refrigerant the first conduit, be provided with on second switch device and/or refrigerant the second conduit and be provided with the 3rd switching device.
Further, VRF Air Conditioning System of the present utility model also comprises: refrigerant the 4th conduit, respectively with the middle part of refrigerant the first conduit and refrigerant the 3rd import and export with cross valve between the middle part of tube connector be connected; The 5th switching device, is arranged on refrigerant the 4th conduit.
Further, the link position of refrigerant the second conduit and refrigerant the 3rd conduit is between the first switching device and refrigerant the second import and export.
Further, VRF Air Conditioning System of the present utility model also comprises: fan coil, have the second import of heat exchange liquid and the second outlet of heat exchange liquid, the second import of heat exchange liquid is connected with the first outlet of heat exchange liquid, and the second outlet of heat exchange liquid is connected with the first import of heat exchange liquid.
Further, VRF Air Conditioning System of the present utility model also comprises: ground warm device, have heat exchange liquid triple feed inlet and the 3rd outlet of heat exchange liquid, heat exchange liquid triple feed inlet is connected with the first outlet of heat exchange liquid, and the 3rd outlet of heat exchange liquid is connected with the first import of heat exchange liquid.
Application the technical solution of the utility model, annexation between compressor, outdoor unit heat exchanger and the first chilled water heat exchanger makes three form the integral body of circulation, by making the heat exchange liquid and the refrigerant that flow into the first chilled water heat exchanger carry out heat exchange, thermal source or the low-temperature receiver that heat exchange heat exchange liquid afterwards can be exchanged as Indoor Thermal, can realize existing air-conditioning to the indoor function that heats or lower the temperature, the heat exchange liquid that flows into the first chilled water heat exchanger is preferably water, certainly, can be also other liquid that can realize identical function.Owing to being also provided with the second chilled water heat exchanger, even indoor without heating or lowering the temperature, still can start compressor and outdoor unit heat exchanger, make compressed high temperature refrigerant flow into the second chilled water heat exchanger, like this, the high temperature refrigerant and the water that flow into the second chilled water heat exchanger carry out heat exchange, and the water in the second chilled water heat exchanger absorbs heat the higher water of formation temperature of refrigerant, the water that this temperature is higher is discharged through delivery port, and can be used as hot water for life.As the above analysis, the utilization ratio of VRF Air Conditioning System of the present utility model is higher.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows according to the structural representation of the embodiment of VRF Air Conditioning System of the present utility model.
Wherein, the Reference numeral in above-mentioned figure is as follows:
10, compressor; 11, refrigerant the first import; 12, refrigerant the first outlet; 20, outdoor unit heat exchanger; 21, refrigerant first is imported and exported; 22, refrigerant second is imported and exported; 30, the first chilled water heat exchanger; 31, refrigerant the 3rd is imported and exported; 32, refrigerant the 4th is imported and exported; 33, heat exchange liquid the first import; 34, heat exchange liquid the first outlet; 35, refrigerant the 3rd conduit; 36, the first switching device; 37, the 4th switching device; 38, reservoir; 40, the second chilled water heat exchanger; 41, refrigerant the 5th is imported and exported; 42, refrigerant the 6th is imported and exported; 43, water inlet; 44, delivery port; 45, refrigerant the first conduit; 46, refrigerant the second conduit; 47, second switch device; 48, the 3rd switching device; 51, cross valve; 52, tube connector; 53, gas-liquid separator; 60, fan coil; 61, heat exchange liquid the second import; 62, heat exchange liquid the second outlet; 63, water pump; 64, water flow switch; 65, expansion drum; 66, the first magnetic valve; 70, ground warm device; 71, heat exchange liquid triple feed inlet; 72, heat exchange liquid the 3rd outlet; 73, the second magnetic valve; 74, water knockout drum; 75, shunt valve; 76, water collector; 80, refrigerant the 4th conduit; 81, the 5th switching device; 82, two-port valve.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figure 1, the VRF Air Conditioning System of the present embodiment comprises compressor 10, outdoor unit heat exchanger 20, the first chilled water heat exchanger 30 and the second chilled water heat exchanger 40.Compressor 10 has refrigerant the first import 11 and refrigerant the first outlet 12.Outdoor unit heat exchanger 20 has refrigerant the first import and export 21 and refrigerant second imports and exports 22, refrigerant first imports and exports 21, and the first outlet 12 is connected with refrigerant with refrigerant the first import 11 respectively, and refrigerant the first import 11 is is all imported and exported 21 with refrigerant first with refrigerant the first outlet 12 and had the channel status being connected and the off state of blocking mutually.The first chilled water heat exchanger 30 has refrigerant the 3rd import and export 31, refrigerant the 4th import and export 32, the first import 33 of heat exchange liquid and the first outlet 34 of heat exchange liquid, refrigerant the 3rd imports and exports 31, and the first outlet 12 is connected with refrigerant with refrigerant the first import 11 respectively, refrigerant the first import 11 is is all imported and exported 31 with refrigerant the 3rd with refrigerant the first outlet 12 and is had the channel status being connected and the off state of blocking mutually, and refrigerant the 4th is imported and exported 32 and is connected with refrigerant the second import and export 22.The second chilled water heat exchanger 40 has refrigerant the 5th import and export 41, refrigerant the 6th import and export 42, water inlet 43 and delivery port 44, refrigerant the 5th is imported and exported 41 and is connected with refrigerant the first outlet 12, refrigerant the 6th is imported and exported 42 and is connected with refrigerant the second import and export 22, and refrigerant the 5th is imported and exported 41 and had the channel status being connected and the off state of blocking mutually with refrigerant the first outlet 12.
Certainly, as feasible embodiment, refrigerant the 6th import and export 42 are imported and exported 22 modes with the channel status being connected and the off state of blocking mutually with refrigerant second and are replaced refrigerant the 5th import and export 41 and refrigerant the first outlet 12 to have the mode of the channel status being connected and the off state of blocking mutually.In addition, can also refrigerant the 5th import and export 41 there is the off state of the channel status that is connected and blocking-up mutually with refrigerant the first outlet 12 in, refrigerant the 6th is imported and exported 42 and is had the channel status being connected and the off state of blocking mutually with refrigerant the second import and export 22.
The VRF Air Conditioning System of application the present embodiment, annexation between compressor 10, outdoor unit heat exchanger 20 and the first chilled water heat exchanger 30 makes three form the integral body of circulation, by making the heat exchange liquid and the refrigerant that flow into the first chilled water heat exchanger 30 carry out heat exchange, thermal source or the low-temperature receiver that heat exchange heat exchange liquid afterwards can be exchanged as Indoor Thermal, can realize existing air-conditioning to the indoor function that heats or lower the temperature, the heat exchange liquid that flows into the first chilled water heat exchanger 30 is preferably water, certainly, can be also other liquid that can realize identical function.Owing to being also provided with the second chilled water heat exchanger 40, even indoor without heating or lowering the temperature, still can start compressor 10 and outdoor unit heat exchanger 20, make compressed high temperature refrigerant flow into the second chilled water heat exchanger 40, like this, the high temperature refrigerant and the water that flow into the second chilled water heat exchanger 40 carry out heat exchange, and the water in the second chilled water heat exchanger 40 absorbs heat the higher water of formation temperature of refrigerant, the water that this temperature is higher is discharged through delivery port 44, and can be used as hot water for life.As the above analysis, the utilization ratio of the VRF Air Conditioning System of the present embodiment is higher.Why refrigerant the 5th to be imported and exported 41 and to be had with refrigerant the first outlet 12 channel status being connected and the off state of blocking is mutually in order preventing when not needing to use the second chilled water heat exchanger 40, refrigerant after compressed flows in outdoor unit heat exchanger 20 through the second chilled water heat exchanger 40, because the second chilled water heat exchanger 40 does not liquefy to refrigerant, for the refrigerant of liquefaction causes the damage of outdoor unit heat exchanger 20.
When if refrigerant the 5th import and export 41 have the channel status being connected and the off state of blocking mutually with refrigerant the first outlet 12, refrigerant the 6th is imported and exported 42 and is had the channel status being connected and the off state of blocking mutually with refrigerant the second import and export 22, like this, can prevent that refrigerant from flowing in the second chilled water heat exchanger 40 with any direction, part refrigerant is stored in the second chilled water heat exchanger 40, causes the waste of refrigerant.
In the time only need to heating (indoor intensification or ground warm device heat up), refrigerant the 5th is imported and exported to 41 and export 12 in off state with refrigerant first, refrigerant the 6th is imported and exported 42 and is imported and exported 22 in off state with refrigerant second, to prevent that refrigerant from flowing in the second chilled water heat exchanger 40, and refrigerant the first outlet 12 and refrigerant the 3rd are imported and exported to 31 in channel status, refrigerant the first import 11 imports and exports 21 in channel status with refrigerant first, like this, the high temperature refrigerants of discharging through refrigerant first outlet 12 are in the first chilled water heat exchanger 30 and transfer heat to the heat exchange liquid of this first chilled water heat exchanger 30 of flowing through, the heat exchange liquid of discharging from the first outlet 34 of heat exchange liquid is high-temp liquid, high-temp liquid is for heating up to indoor or ground warm device.From refrigerant the 4th import and export the 32 low temperature refrigerants of discharging in outdoor unit heat exchanger 20 is back to compressor 10 to form a circulation.
When only needing refrigeration (room temperature lowering), equally refrigerant the 5th is imported and exported to 41 and exported 12 in off state with refrigerant first, refrigerant the 6th is imported and exported 42 and is imported and exported 22 in off state with refrigerant second, to prevent that refrigerant from flowing in the second chilled water heat exchanger 40, and refrigerant the first outlet 12 and refrigerant first are imported and exported to 21 in channel status, refrigerant the first import 11 imports and exports 31 in channel status with refrigerant the 3rd, like this, the high temperature refrigerants of discharging through refrigerant first outlet 12 cooling of liquefying in outdoor unit heat exchanger 20, low temperature refrigerant is imported and exported 32 through refrigerant the 4th and is entered in the first chilled water heat exchanger 30, and absorb the heat of the heat exchange liquid of this first chilled water heat exchanger 30 of flowing through, the heat exchange liquid of discharging from the first outlet 34 of heat exchange liquid is cryogenic liquid, this cryogenic liquid is used for to room temperature lowering.From refrigerant the 3rd, importing and exporting 31 refrigerants of discharging is back in compressor 10 to form a circulation.When needs are when to outdoor unit heat exchanger, 20 defrosts are processed, adopt equally the process of above-mentioned refrigeration, in this process, the first chilled water heat exchanger 30 is as defrost thermal source.
When only need to domestic hot-water processed, by refrigerant the 3rd import and export 31 with refrigerant the first import 11 in off state, refrigerant the 3rd is imported and exported 31 and is exported 12 in off state with refrigerant first, to prevent the refrigerant first chilled water heat exchanger 30 of flowing through, and refrigerant the first outlet 12 and refrigerant the 5th are imported and exported to 41 in channel status, refrigerant the 6th is imported and exported 42 and is imported and exported 22 in channel status with refrigerant second, like this, the high temperature refrigerants of discharging through refrigerant first outlet 12 are in the second chilled water heat exchanger 40 and transfer heat to the water of this second chilled water heat exchanger 40 of flowing through, the high-temperature water of discharging through delivery port 44 can be used as domestic hot-water, through refrigerant the 6th, import and export the 42 low temperature refrigerants of discharging and through outdoor unit heat exchanger 20, be back to that compressor 10 is interior realizes a circulation.
As needs domestic hot-water processed and while heating (indoor intensification or ground warm device heat up), refrigerant the first outlet 12 and refrigerant the 5th are imported and exported to 41 in channel status, refrigerant the 6th is imported and exported 42 and is imported and exported 22 in channel status with refrigerant second, refrigerant the first outlet 12 imports and exports 31 in channel status with refrigerant the 3rd, refrigerant the first import 11 imports and exports 21 in channel status with refrigerant first, detailed process is the process stack that above-mentioned needs heat and only need to domestic hot-water processed, does not repeat them here.
As shown in Figure 1, in the present embodiment, refrigerant the 6th is imported and exported 42 and is connected with refrigerant the 4th import and export 32 and has the channel status being connected and the off state of blocking mutually.Refrigeration (room temperature lowering) when said structure can be realized domestic hot-water processed, particularly, refrigerant the first outlet 12 and refrigerant first are imported and exported to 21 in channel status, refrigerant the first import 11 imports and exports 31 in channel status with refrigerant the 3rd, refrigerant the first outlet 12 imports and exports 41 in channel status with refrigerant the 5th, refrigerant the 6th is imported and exported 42 and is imported and exported 32 in channel status with refrigerant the 4th, like this, through refrigerant second, import and export the 22 low temperature refrigerants of discharging and through refrigerant the 6th, import and export the 42 low temperature refrigerants of discharging and enter the heat that gasifies in the first chilled water heat exchanger 30 and absorb the heat exchange liquid of this first chilled water heat exchanger 30 of flowing through simultaneously, the heat exchange liquid of discharging from the first outlet 34 of heat exchange liquid is cryogenic liquid, this cryogenic liquid is used for to room temperature lowering.Domestic hot-water processed in this process with above-mentioned need to domestic hot-water processed process identical, for for purpose of brevity, do not repeat them here.
As shown in Figure 1, in the present embodiment, refrigerant the 4th is imported and exported 32 and is had the channel status being connected and the off state of blocking mutually with refrigerant the second import and export 22.Like this, when only need to domestic hot-water processed or using the second chilled water heat exchanger 40 during as defrost thermal source, refrigerant the 4th can be imported and exported to 32 and import and export 22 in off state with refrigerant second, prevent that refrigerant from flowing into and being stored in the first chilled water heat exchanger 30, reduced the utilization rate of refrigerant.
As shown in Figure 1, in the present embodiment, refrigerant the 5th is imported and exported 41 and is connected with refrigerant the first outlet 12 and has the channel status being connected and the off state of blocking mutually.When said structure can adopt the second chilled water heat exchanger 40 20 defrosts are processed to outdoor unit heat exchanger as defrost thermal source, by refrigerant the 3rd import and export 31 with refrigerant the first import 11 in off state, refrigerant the 3rd is imported and exported 31 and is exported 12 in off state with refrigerant first, to prevent the refrigerant first chilled water heat exchanger 30 of flowing through, refrigerant the first outlet 12 and refrigerant first are imported and exported to 21 in channel status, refrigerant the 6th is imported and exported 42 and is imported and exported 22 in channel status with refrigerant second, and refrigerant the 5th import and export 41 and refrigerant the first outlet 12 are in channel status.The high temperature refrigerants of discharging through refrigerant first outlet 12 flow into outdoor unit heat exchangers 20 carry out liquidation exothermic reaction with to outdoor unit heat exchanger 20 defrosts process, through refrigerant second, import and export the 22 low temperature refrigerants of discharging in flow through heat the gasification of water of this second chilled water heat exchanger 40 of the interior absorption of the second chilled water heat exchanger 40, the refrigerant after gasification is imported and exported 41 through refrigerant the 5th and is back to that compressor 10 is interior realizes a circulation.
As shown in Figure 1, the VRF Air Conditioning System of the present embodiment also comprises reversing arrangement, refrigerant first imports and exports 21, and by this reversing arrangement, the first outlet 12 is connected with refrigerant with refrigerant the first import 11 respectively, and refrigerant the 3rd imports and exports 31, and by this reversing arrangement, the first outlet 12 is connected with refrigerant with refrigerant the first import 11 respectively.Reversing arrangement is used for realizing that refrigerant the first import 11 and refrigerant first imports and exports 21, refrigerant the first outlet 12 and refrigerant first import and export 21, refrigerant the first import 11 and refrigerant the 3rd import and export 31 and refrigerant first export 12 and refrigerant the 3rd import and export 31 between channel status and off state, change.
As shown in Figure 1, in the present embodiment, reversing arrangement comprises cross valve 51 and four tube connectors 52, and cross valve 51 has four links.Four tube connectors 52 and four links connect one to one, and four links are imported and exported 31 by corresponding tube connector 52 with refrigerant the first import 11, refrigerant the first outlet 12, refrigerant the first import and export 21 and refrigerant the 3rd respectively and connected one to one.By cross valve 51, can realize very easily above-mentioned two corresponding import and export and change between channel status and off state, make the structure of VRF Air Conditioning System of the present embodiment simpler.On tube connector 52 between refrigerant the first import 11 and cross valve 51, be provided with gas-liquid separator 53.
As shown in Figure 1, in the present embodiment, refrigerant the 4th is imported and exported 32 and by refrigerant the 3rd conduit 35, is imported and exported 22 with refrigerant second and be connected, on refrigerant the 3rd conduit 35, be provided with the first switching device 36 with realize refrigerant the 4th import and export 32 and refrigerant the second import and export 22 between channel status and off state, change.The first switching device 36 is preferably electromagnetic expanding valve.
As shown in Figure 1, in the present embodiment, refrigerant the 5th is imported and exported 41 and is connected with refrigerant the first outlet 12 by refrigerant the first conduit 45.Refrigerant the 6th is imported and exported 42 and by refrigerant the second conduit 46 and the middle part of refrigerant the 3rd conduit 35, is connected to realize refrigerant the 6th and imports and exports 42 and import and export 22 with refrigerant second and be connected and refrigerant the 6th import and export 42 are connected with refrigerant the 4th import and export 32.On refrigerant the first conduit 45, be provided with second switch device 47, can control like this refrigerant second chilled water heat exchanger 40 of can flowing through.Certainly, also can be with being provided with the mode that the 3rd switching device 48 modes replace being provided with on refrigerant the first conduit 45 second switch device 47 on refrigerant the second conduit 46, in the present embodiment, when being provided with second switch device 47 on refrigerant the first conduit 45, on refrigerant the second conduit 46, be provided with the 3rd switching device 48.Second switch device 47 is preferably magnetic valve.As shown in Figure 1, VRF Air Conditioning System at the present embodiment also comprises refrigerant the 4th conduit 80 and the 5th switching device 81, refrigerant the 4th conduit 80 respectively with the middle part of refrigerant the first conduit 45 and refrigerant the 3rd import and export 31 with cross valve 51 between the middle part of tube connector 52 be connected, the 5th switching device 81 is arranged on refrigerant the 4th conduit 80.Like this, when 20 defrosts are processed to outdoor unit heat exchanger as defrost thermal source at employing the second chilled water heat exchanger 40, by opening the 5th switching device 81, can make refrigerant the 5th import and export 41 and refrigerant first export 12 in channel status.The 5th switching device 81 is preferably magnetic valve.Refrigerant the 3rd import and export 31 and cross valve 51 between tube connector 52 on be provided with two-port valve 82, two-port valve 82 is between cross valve 51 and corresponding tube connector 52 and the link position of refrigerant the 4th conduit 80.
Preferably, refrigerant the 5th is imported and exported 41 middle parts by the tube connector 52 between refrigerant the first conduit 45 and refrigerant the first outlet 12 and cross valve 51 and is connected to realize refrigerant the 5th and imports and exports 41 and export 12 with refrigerant first and be connected.
As shown in Figure 1, in the present embodiment, the link position of refrigerant the second conduit 46 and refrigerant the 3rd conduit 35 is imported and exported between 22 at the first switching device 36 and refrigerant second.Like this, the keying of the first switching device 36 can not affect refrigerant the 6th and imports and exports 42 and whether import and export 22 in channel status or off state with refrigerant second.
As shown in Figure 1, in the present embodiment, on refrigerant the 3rd conduit 35, be provided with the 4th switching device 37 and reservoir 38, the 4th switching device 37 is imported and exported between 22 at reservoir 38 and refrigerant second, and reservoir 38 is between the link position and the 4th switching device 37 of refrigerant the second conduit 46 and refrigerant the 3rd conduit 35.
As shown in Figure 1, the VRF Air Conditioning System of the present embodiment also comprises fan coil 60, fan coil 60 has the second import 61 of heat exchange liquid and the second outlet 62 of heat exchange liquid, the second import 61 of heat exchange liquid is connected with the first outlet 34 of heat exchange liquid, and the second outlet 62 of heat exchange liquid is connected with the first import 33 of heat exchange liquid.Fan coil 60 Stability Analysis of Structures, functional, can carry out good temperature control to indoor.As shown in Figure 1, between the second import 61 of heat exchange liquid and the first outlet 34 of heat exchange liquid and by first outlet 34 to heat exchange liquid the second import 61 of heat exchange liquid, be disposed with expansion drum 65, water pump 63, water flow switch 64 and the first magnetic valve 66.In addition, fan coil 60 is a plurality of, and a plurality of fan coils 60 are arranged in parallel.
As shown in Figure 1, the VRF Air Conditioning System of the present embodiment also comprises ground warm device 70, ground warm device 70 has heat exchange liquid triple feed inlet 71 and the 3rd outlet 72 of heat exchange liquid, heat exchange liquid triple feed inlet 71 is connected with the first outlet 34 of heat exchange liquid, and the 3rd outlet 72 of heat exchange liquid is connected with the first import 33 of heat exchange liquid.The high temperature heat exchange liquid that flow out from heat exchange liquid first outlet 34 provide thermal source for ground warm device 70.Preferably, heat exchange liquid triple feed inlet 71 is connected with the first outlet 34 of heat exchange liquid in the mode being connected in parallel to each other with the second import 61 of heat exchange liquid, and the 3rd outlet 72 of heat exchange liquid is connected with the first import 33 of heat exchange liquid in the mode being connected in parallel to each other with the second outlet 62 of heat exchange liquid.Between heat exchange liquid triple feed inlet 71 and the first outlet 34 of heat exchange liquid and by the first outlet 34 of heat exchange liquid, to heat exchange liquid triple feed inlet 71, be disposed with above-mentioned expansion drum 65, water pump 63 and water flow switch 64, and be provided with the second magnetic valve 73, the second magnetic valves 73 and the first magnetic valve 66 is arranged in parallel.Preferably, ground warm device 70 is a plurality of, and a plurality of ground warm devices 70 are arranged in parallel.Between a plurality of heat exchange liquid triple feed inlets 71 of a plurality of ground warm devices 70 and the second magnetic valve 73, be provided with water knockout drum 74, between each heat exchange liquid triple feed inlet 71 and water knockout drum 74, be provided with shunt valve 75.Between a plurality of heat exchange liquid the 3rd outlet 72 of a plurality of ground warm devices 70 and the first import 33 of heat exchange liquid, be provided with water collector 76.
Below in conjunction with concrete structure introduction, realize the detailed process of each function:
In the time only need to heating (indoor intensification or ground warm device heat up), the 4th switching device 37, the first switching device 36 and two-port valve 82 are opened, second switch device 47, the 3rd switching device 48 and the 5th switching device 81 are closed, refrigerant the first outlet 12 is imported and exported 31 by cross valve 51 with refrigerant the 3rd and is communicated, and refrigerant first is imported and exported 21 and communicated with refrigerant the first import 11 by cross valve 51.
When only needing refrigeration (room temperature lowering) or adopt the first chilled water heat exchanger 30 to carry out defrost as defrost thermal source, the 4th switching device 37, the first switching device 36 and two-port valve 82 are opened, second switch device 47, the 3rd switching device 48 and the 5th switching device 81 are closed, refrigerant the first outlet 12 is imported and exported 21 by cross valve 51 with refrigerant first and is communicated, and refrigerant the 3rd is imported and exported 31 and communicated with refrigerant the first import 11 by cross valve 51.
When only need to domestic hot-water processed, the 5th switching device 81, two-port valve 82 and the first switching device 36 are closed, second switch device 47, the 3rd switching device 48 and the 4th switching device 37 are opened, and refrigerant first is imported and exported 21 and communicated with refrigerant the first import 11 by cross valve 51.
As needs domestic hot-water processed and while heating (indoor intensification or ground warm device heat up), the 4th switching device 37, the first switching device 36, two-port valve 82, second switch device 47 and the 3rd switching device 48 are opened, refrigerant the first outlet 12 is imported and exported 31 by cross valve 51 and two-port valve 82 with refrigerant the 3rd and is communicated, and refrigerant first is imported and exported 21 and communicated with refrigerant the first import 11 by cross valve 51.
When adopting the second chilled water heat exchanger 40 20 defrosts processed to outdoor unit heat exchanger as defrost thermal source, second switch device 47, two-port valve 82 and the first switching device 36 are closed, the 3rd switching device 48 and the 4th switching device 37 are opened, and refrigerant the first outlet 12 is imported and exported 21 by cross valve 51 with refrigerant first and communicated.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (12)
1. a VRF Air Conditioning System, comprising:
Compressor (10), has refrigerant the first import (11) and refrigerant the first outlet (12);
Outdoor unit heat exchanger (20), there is refrigerant first and import and export (21) and refrigerant the second import and export (22), described refrigerant first is imported and exported (21) and is connected with described refrigerant the first outlet (12) with described refrigerant the first import (11) respectively, and described refrigerant the first import (11) is is all imported and exported (21) with described refrigerant first with described refrigerant the first outlet (12) and had the channel status being connected and the off state of blocking mutually;
It is characterized in that, described VRF Air Conditioning System also comprises:
The first chilled water heat exchanger (30), there is refrigerant the 3rd and import and export (31), refrigerant the 4th is imported and exported (32), heat exchange liquid the first import (33) and the first outlet (34) of heat exchange liquid, described refrigerant the 3rd is imported and exported (31) and is connected with described refrigerant the first outlet (12) with described refrigerant the first import (11) respectively, described refrigerant the first import (11) is is all imported and exported (31) with described refrigerant the 3rd with described refrigerant the first outlet (12) and is had the channel status being connected and the off state of blocking mutually, described refrigerant the 4th is imported and exported (32) and is connected with described refrigerant the second import and export (22),
The second chilled water heat exchanger (40), there is refrigerant the 5th and import and export (41), refrigerant the 6th is imported and exported (42), water inlet (43) and delivery port (44), described refrigerant the 5th is imported and exported (41) and is connected with described refrigerant the first outlet (12), described refrigerant the 6th is imported and exported (42) and is connected with described refrigerant the second import and export (22), the 5th import and export (41) of described refrigerant have the channel status being connected and the off state of blocking mutually and/or the 6th import and export (42) of described refrigerant with described refrigerant the first outlet (12) and have the channel status being connected and the off state of blocking mutually with described refrigerant the second import and export (22).
2. VRF Air Conditioning System according to claim 1, is characterized in that, described refrigerant the 6th is imported and exported (42) and is connected with the 4th import and export (32) of described refrigerant and has the channel status being connected and the off state of blocking mutually.
3. VRF Air Conditioning System according to claim 1, is characterized in that, described refrigerant the 4th is imported and exported (32) and had the channel status being connected and the off state of blocking mutually with described refrigerant the second import and export (22).
4. VRF Air Conditioning System according to claim 1, is characterized in that, described refrigerant the 5th is imported and exported (41) and is connected and has the channel status being connected and the off state of blocking mutually with described refrigerant the first outlet (12).
5. VRF Air Conditioning System according to claim 1, is characterized in that, also comprises:
Reversing arrangement, described refrigerant first is imported and exported (21) and is connected with described refrigerant the first outlet (12) with described refrigerant the first import (11) respectively by this reversing arrangement, and described refrigerant the 3rd is imported and exported (31) and is connected with described refrigerant the first outlet (12) with described refrigerant the first import (11) respectively by this reversing arrangement.
6. VRF Air Conditioning System according to claim 5, is characterized in that, described reversing arrangement comprises:
Cross valve (51), has four links;
Four tube connectors (52), connect one to one with described four links, described four links by corresponding described tube connector (52) and refrigerant the first import (11), refrigerant the first outlet (12), refrigerant first, import and export (21) respectively and refrigerant the 3rd import and export (31) connect one to one.
7. VRF Air Conditioning System according to claim 6, it is characterized in that, described refrigerant the 4th is imported and exported (32) and by refrigerant the 3rd conduit (35), is imported and exported (22) with described refrigerant second and be connected, and is provided with the first switching device (36) to realize the 4th import and export (32) of described refrigerant and the second import and export (22) of described refrigerant are changed between channel status and off state on described refrigerant the 3rd conduit (35).
8. VRF Air Conditioning System according to claim 7, is characterized in that,
Described refrigerant the 5th is imported and exported (41) and is connected with described refrigerant the first outlet (12) by refrigerant the first conduit (45);
Described refrigerant the 6th is imported and exported (42) and by refrigerant the second conduit (46) and the middle part of described refrigerant the 3rd conduit (35), is connected to realize described refrigerant the 6th and imports and exports (42) and be connected with described refrigerant the second import and export (22) and the 6th import and export (42) of described refrigerant are connected with the 4th import and export (32) of described refrigerant;
On described refrigerant the first conduit (45), be provided with and on second switch device (47) and/or described refrigerant the second conduit (46), be provided with the 3rd switching device (48).
9. VRF Air Conditioning System according to claim 8, is characterized in that, also comprises:
Refrigerant the 4th conduit (80), the middle part of importing and exporting the described tube connector (52) between (31) and described cross valve (51) with the middle part of described refrigerant the first conduit (45) and described refrigerant the 3rd is respectively connected;
The 5th switching device (81), is arranged on described refrigerant the 4th conduit (80).
10. VRF Air Conditioning System according to claim 8, it is characterized in that, the link position of described refrigerant the second conduit (46) and described refrigerant the 3rd conduit (35) is positioned at described the first switching device (36) and described refrigerant second is imported and exported between (22).
11. VRF Air Conditioning System according to claim 1, is characterized in that, also comprise:
Fan coil (60), there is heat exchange liquid the second import (61) and the second outlet (62) of heat exchange liquid, described heat exchange liquid the second import (61) is connected with described heat exchange liquid the first outlet (34), and described heat exchange liquid the second outlet (62) is connected with described heat exchange liquid the first import (33).
12. VRF Air Conditioning System according to claim 1, is characterized in that, also comprise:
Ground warm device (70), there is heat exchange liquid triple feed inlet (71) and the 3rd outlet (72) of heat exchange liquid, described heat exchange liquid triple feed inlet (71) is connected with described heat exchange liquid the first outlet (34), and described heat exchange liquid the 3rd outlet (72) is connected with described heat exchange liquid the first import (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138989.8U CN203797793U (en) | 2014-03-25 | 2014-03-25 | Multi-split air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138989.8U CN203797793U (en) | 2014-03-25 | 2014-03-25 | Multi-split air conditioning unit |
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| Publication Number | Publication Date |
|---|---|
| CN203797793U true CN203797793U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138989.8U Withdrawn - After Issue CN203797793U (en) | 2014-03-25 | 2014-03-25 | Multi-split air conditioning unit |
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| Country | Link |
|---|---|
| CN (1) | CN203797793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949195A (en) * | 2014-03-25 | 2015-09-30 | 珠海格力电器股份有限公司 | Multi-connected air conditioning unit |
-
2014
- 2014-03-25 CN CN201420138989.8U patent/CN203797793U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949195A (en) * | 2014-03-25 | 2015-09-30 | 珠海格力电器股份有限公司 | Multi-connected air conditioning unit |
| CN104949195B (en) * | 2014-03-25 | 2017-11-14 | 珠海格力电器股份有限公司 | VRF Air Conditioning System |
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