CN205939465U - Multi -split air conditioning system - Google Patents

Multi -split air conditioning system Download PDF

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Publication number
CN205939465U
CN205939465U CN201620910181.6U CN201620910181U CN205939465U CN 205939465 U CN205939465 U CN 205939465U CN 201620910181 U CN201620910181 U CN 201620910181U CN 205939465 U CN205939465 U CN 205939465U
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CN
China
Prior art keywords
air
premises station
conditioning system
throttle part
coolant
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CN201620910181.6U
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Chinese (zh)
Inventor
卜其辉
许永锋
梁伯启
李宏伟
董世龙
吴晓鸿
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201620910181.6U priority Critical patent/CN205939465U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The utility model provides a multi -split air conditioning system, machine in an air condensing units and two at least parallelly connected air conditioning, air condensing units includes enhanced vapor injection compressor, cross valve, water source cooling unit, refrigerant and water heat transfer unit, off -premises station liquid side stop valve, off -premises station gas side stop valve and off -premises station electron heating element, utilize water source cooling unit and refrigerant and the cooling circuit that water heat transfer unit constitutes, provide the water source of higher temperature when low temperature environment heats, provide the water source of lower temperature when high temperature environment refrigerates, carry out the heat transfer with refrigerant among the air conditioning system, solved multi -split air conditioning system under low temperature or high temperature environment, technical problem that heat exchange efficiency hangs down. The utility model discloses a multi -split air conditioning system, simple structure had both improved system efficiency, can reach energy -concerving and environment -protective purpose again.

Description

Multi-online air-conditioning system
Technical field
This utility model is related to steam compression type refrigeration field of air conditioning, more particularly, to a kind of multi-online air-conditioning system.
Background technology
In order to lift multi-online air-conditioning system heating effect at low ambient temperatures, how to be carried by the way of two-stage compression High heating capacity, the air injection enthalpy-increasing compressor with air injection enthalpy-increasing is equivalent to a two-stage compression system, equally can reach raising The effect of heating effect.But, current air conditioning system carries out heat exchange using air cooling heat exchanger and external environment condition, mostly in low temperature Or under hot environment, heat exchange efficiency is relatively low.
Utility model content
Main purpose of the present utility model is to provide a kind of multi-online air-conditioning system it is intended to solve multi-online air-conditioning system Under low temperature or hot environment, the low technical problem of heat exchange efficiency.
For achieving the above object, the utility model proposes a kind of multi-online air-conditioning system, including an air-conditioner outdoor unit and The indoor apparatus of air conditioner of at least two parallel connections, described air-conditioner outdoor unit includes air injection enthalpy-increasing compressor, cross valve, water source cooling list Unit, coolant and water heat exchange unit, off-premises station liquid side stop valve, off-premises station gas side stop valve and off-premises station electronic heating element;
Described coolant and water heat exchange unit arrival end connect cross valve, and the port of export connects off-premises station liquid side stop valve, described Water source cooling unit constitutes a cooling circuit with coolant and water heat exchange unit, carries out heat exchange with coolant;
Described off-premises station electronic heating element is provided with increasing enthalpy pipeline, and the port of export of this increasing enthalpy pipeline connects air injection enthalpy-increasing pressure Contracting machine, arrival end is connected to the pipeline between coolant and water heat exchange unit and off-premises station liquid side stop valve;
Described off-premises station gas side stop valve one end connects cross valve, and the other end passes through described indoor apparatus of air conditioner in parallel respectively Connect off-premises station liquid side stop valve.
Further, this multi-online air-conditioning system also includes gas-liquid separator, and the arrival end of this gas-liquid separator connects four Port valve, the port of export connects air injection enthalpy-increasing compressor.
Further, this multi-online air-conditioning system includes the first indoor apparatus of air conditioner and second indoor apparatus of air conditioner of two parallel connections.
Further, described first indoor apparatus of air conditioner includes the first indoor heat exchanger and the first indoor set restriction connected Part, described second indoor apparatus of air conditioner includes the second indoor heat exchanger and the second indoor set throttle part connected;
Described first indoor heat exchanger and second indoor heat exchanger one end connect off-premises station gas side stop valve, the other end respectively Pass through the first indoor set throttle part respectively and the second indoor set throttle part connects off-premises station liquid side stop valve.
Further, it is provided with the first electronics between described coolant and the water heat exchange unit port of export and off-premises station liquid side stop valve Throttle part, is provided with the second electronic throttle part between the arrival end of described increasing enthalpy pipeline and off-premises station electronic heating element.
Further, described first electronic throttle part and the second electronic throttle part are respectively electric expansion valve or heating power Expansion valve.
Further, described air-conditioner outdoor unit also includes controller, module heat dissipating import temperature-sensitive bag and module heat dissipating outlet Temperature-sensitive bag;
Described module heat dissipating import temperature-sensitive bag is arranged between off-premises station electronic heating element and the second electronic throttle part;
Described module heat dissipating outlet temperature-sensitive bag is arranged between off-premises station electronic heating element and air injection enthalpy-increasing compressor;
The input of described controller connects described module heat dissipating import temperature-sensitive bag and module heat dissipating outlet temperature-sensitive bag, output End connects the second electronic throttle part.
Multi-online air-conditioning system of the present utility model, constitutes cooling using water source cooling unit with coolant and water heat exchange unit Loop, provides the water source of higher temperature when low temperature environment heats, and provides the water source of lower temperature in high temperature environment refrigerating, with Coolant in air conditioning system carries out heat exchange, solves multi-online air-conditioning system under low temperature or hot environment, heat exchange efficiency is low Technical problem.Multi-online air-conditioning system of the present utility model, structure is simple, had both improve system effectiveness, and can reach energy-saving ring again The purpose protected.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of this utility model multi-online air-conditioning system one embodiment.
Drawing reference numeral explanation:
Label Title Label Title
1 Air injection enthalpy-increasing compressor 6 Second electronic throttle part
1a Air vent 7 Gas-liquid separator
1b Gas returning port 8 Off-premises station liquid side stop valve
1c Puff prot 9 Off-premises station gas side stop valve
2 Cross valve 10 Off-premises station electronic heating element
2a First port 11 First indoor heat exchanger
2b Second port 12 First indoor set throttle part
2c 3rd port 13 Second indoor heat exchanger
2d 4th port 14 Second indoor set throttle part
3 Water source cooling unit 15 Module heat dissipating import temperature-sensitive bag
4 Coolant and water heat exchange unit 16 Module heat dissipating exports temperature-sensitive bag
5 First electronic throttle part 17 Increasing enthalpy pipeline
The realization of this utility model purpose, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not paying creative work premise Lower obtained every other embodiment, broadly falls into the scope of this utility model protection.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in this utility model embodiment It is only used for explaining the relative position relation between each part, motion conditions etc. under a certain particular pose (as shown in drawings), such as When really this particular pose changes, then directionality instruction also correspondingly changes therewith.
In addition, the description being related to " first ", " second " etc. in this utility model is only used for describing purpose, and it is not understood that For indicating or implying its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", The feature of " second " can be expressed or implicitly include at least one this feature.In addition, the technical side between each embodiment Case can be combined with each other, but must be capable of by those of ordinary skill in the art based on, when the combination of technical scheme Will be understood that the combination of this technical scheme does not exist when appearance is conflicting or cannot realize, also do not require in this utility model Protection domain within.
With reference to Fig. 1, in the present embodiment, this multi-online air-conditioning system, in parallel including an air-conditioner outdoor unit and at least two Indoor apparatus of air conditioner, described air-conditioner outdoor unit includes air injection enthalpy-increasing compressor 1, cross valve 2, water source cooling unit 3, coolant and water Heat exchange unit 4, off-premises station liquid side stop valve 8, off-premises station gas side stop valve 9 and off-premises station electronic heating element 10;
Described coolant and water heat exchange unit 4 arrival end connect cross valve 2, and the port of export connects off-premises station liquid side stop valve 8, institute State water source cooling unit 3 and constitute a cooling circuit with coolant and water heat exchange unit 4, carry out heat exchange with coolant;
Described off-premises station electronic heating element 10 is provided with increasing enthalpy pipeline 17, and the port of export of this increasing enthalpy pipeline 17 connects jet Enthalpy-increasing compressor 1, arrival end is connected to the pipeline between coolant and water heat exchange unit 4 and off-premises station liquid side stop valve 8;
Described off-premises station gas side stop valve 9 one end connects cross valve 2, and it is indoor that the other end passes through described air-conditioning in parallel respectively Machine connects off-premises station liquid side stop valve 8.
The multi-online air-conditioning system of the present embodiment, including an air-conditioner outdoor unit and two in parallel indoor apparatus of air conditioner, In other embodiment, more indoor apparatus of air conditioner can also be included, described air-conditioner outdoor unit include an air injection enthalpy-increasing compressor 1, Cross valve 2, water source cooling unit 3, coolant and water heat exchange unit 4, off-premises station liquid side stop valve 8, off-premises station gas side stop valve 9 and Off-premises station electronic heating element 10.
Described air injection enthalpy-increasing compressor 1 includes an air vent 1a, for the High Temperature High Pressure that will be produced by compressed action Gaseous coolant exports to heat exchanger;Including a gas returning port 1b, for reclaiming the low-temp low-pressure becoming in heat exchanger interior suction thermal evaporation Gaseous coolant;Also include a puff prot 1c, for reclaiming in off-premises station electronic heating element, economizer, heat exchanger or other heat The gaseous coolant of the middle pressure flashing to of absorbing heat under environment.
Described cross valve 2 includes first port 2a, second port 2b, the 3rd port 2c and the 4th port 2d, connects respectively Air injection enthalpy-increasing compressor 1, outdoor heat exchanger, indoor heat exchanger and gas-liquid separator 7, beat in different time points to open or close Close, complete to freeze or heat circulation.
Described coolant and water heat exchange unit 4 are the outdoor heat exchanger of air conditioning system, in this embodiment for a kind of water-cooled heat exchange Device, its arrival end connects second port 2b of cross valve 2, and the port of export connects off-premises station liquid side stop valve 8, and the cooling of described water source is single Unit 3 is the Cooling and Heat Source of coolant and water heat exchange unit 4, is typically come by the heat exchange coil being placed in subsoil water, surface water or soil etc. There is provided it is also possible to directly surface water is supplied to air conditioning system main frame using water pump;When air conditioning system is freezed, coolant and water change , as outdoor condenser, external environment heat release, water source cooling unit 3 is in cooling circuit to coolant and water heat exchange for hot cell 4 Unit 4 provides temperature to be less than the water source of ambient temperature, in order to gaseous coolant and coolant and the water heat exchange list of High Temperature High Pressure Unit 4 carries out heat exchange, is condensed into the liquid refrigerants of High Temperature High Pressure;When air conditioning system heats, coolant and water heat exchange unit 4 are as room Outer vaporizer, external environment absorbs heat, and water source cooling unit 3 provides to coolant and water heat exchange unit 4 in cooling circuit Temperature is higher than the water source of ambient temperature, and liquid refrigerants and coolant and water heat exchange unit 4 in order to low-temp low-pressure are changed Heat, flashes to the gaseous coolant of low-temp low-pressure;Adopting air cooling heat exchanger existing most of air conditioning system more, and air-cooled for improving The outdoor fan of heat exchanger heat exchange efficiency, but heat exchange efficiency under low temperature environment and hot environment for this kind of cooperation is relatively low, because This, the air conditioning system of the present embodiment, using the substantially coolant of water cooling heat exchanger and water heat exchange unit 4, is equipped with and is changed with coolant and water Hot cell 4 constitutes the water source cooling unit 3 of a cooling circuit, so as water-cooled heat exchange unit 3 pass through coolant and water heat exchange unit 4 with The coolant of air conditioning system carries out heat exchange, it is possible to increase whole Energy Efficiency Ratio under high temperature or low temperature environment for the air conditioning system.
Described off-premises station electronic heating element 10 is provided with increasing enthalpy pipeline 17, and off-premises station electronic heating element 10 can be electricity The high power devices such as control module, the arrival end of this increasing enthalpy pipeline 17 is arranged at coolant and water heat exchange unit 4 and off-premises station liquid side is cut Stop any one node of refrigerant pipeline between valve 8, the port of export connects air injection enthalpy-increasing compressor 1 by puff prot 1c, in air-conditioning System heats or during refrigerating operaton, and the coolant in refrigerant pipeline throttles into middle pressure liquid refrigerants through the second electronic throttle part 6, Then the heat being produced by absorbing outdoor dynamo-electric sub- heater element 10 becomes middle pressure gaseous coolant, enters air injection enthalpy-increasing compressor 1, reduce the compressed action of air injection enthalpy-increasing compressor 1, realize air injection enthalpy-increasing, improve capacity and the efficiency of air conditioning system.
One end of described off-premises station gas side stop valve 9 connects the 3rd port 2c of cross valve 2, and the other end is respectively in parallel Two indoor apparatus of air conditioner connect off-premises station liquid side stop valves 8, the air conditioning system of the present embodiment is passed through in the cut-off of off-premises station gas side The heat exchanger of the indoor apparatus of air conditioner between valve 9 and off-premises station liquid side stop valve 8 is realized heating and freezing.
Further, with reference to Fig. 1, this multi-online air-conditioning system also includes gas-liquid separator 7, the entering of this gas-liquid separator 7 Mouth end connects cross valve 2, and the port of export connects air injection enthalpy-increasing compressor 1.
The multi-online air-conditioning system of the present embodiment, also includes gas-liquid separator 7, and the arrival end of this gas-liquid separator 7 connects 4th port 2d of cross valve 2, the port of export connects the gas returning port 1b of air injection enthalpy-increasing compressor 1, carry out heating in air conditioning system and In refrigerative circle system, the coolant that will return to air injection enthalpy-increasing compressor 1 is carried out with the separation of gaseous coolant and liquid refrigerants, prevents Liquid refrigerants cooled via return air mouth 1b enters air injection enthalpy-increasing compressor 1, causes liquid refrigerants liquid to amass, and then damages compressor, improves The functional reliability of this outdoor unit of air-conditioning system.
Further, with reference to Fig. 1, this multi-online air-conditioning system includes the first indoor apparatus of air conditioner and second air-conditioning of two parallel connections Indoor set,
Described first indoor apparatus of air conditioner includes the first indoor heat exchange connected, and 11 and the first indoor set throttle part 12, institute State the second indoor heat exchanger 13 and the second indoor set throttle part 14 that the second indoor apparatus of air conditioner includes connecting;
Described first indoor heat exchanger 11 and the second indoor heat exchanger 13 one end connect off-premises station gas side stop valve 9 respectively, The other end passes through the first indoor set throttle part 12 respectively and the second indoor set throttle part 14 connects off-premises station liquid side stop valve 8.
The multi-online air-conditioning system of the present embodiment, indoor including two the first indoor apparatus of air conditioner in parallel and the second air-conditioning Machine, the first indoor apparatus of air conditioner includes the first indoor heat exchanger 11 and the first indoor set throttle part 12 connected, the second air conditioning chamber Interior machine includes the second indoor heat exchanger 13 and the second indoor set throttle part 14, the first indoor heat exchanger 11 and the second Room connected One end of interior heat exchanger 13 connects off-premises station gas side stop valve 9 respectively, and the other end passes through the first indoor set throttle part 12 respectively Connect off-premises station liquid side stop valve 8 with the second indoor set throttle part 14, to pass through the when air conditioning system heats or freezes One indoor heat exchanger 11 and the second indoor heat exchanger 13 are to indoor environment heat release or heat absorption.
Further, with reference to Fig. 1, between the port of export of described coolant and water heat exchange unit 4 and off-premises station liquid side stop valve 8 It is provided with the first electronic throttle part 5, between the arrival end of described increasing enthalpy pipeline 17 and off-premises station electronic heating element 10, be provided with Two electronic throttle parts 6.
The multi-online air-conditioning system of the present embodiment, in the port of export and the off-premises station liquid side of described coolant and water heat exchange unit 4 It is provided with the first electronic throttle part 5 between stop valve 8, adjust the pressure of the flow of coolant in refrigerant pipeline, in increasing enthalpy pipeline 17 Arrival end and off-premises station electronic heating element 10 between be provided with the second electronic throttle part 6, the arrival end of increasing enthalpy pipeline 17 sets Put the node near off-premises station liquid side stop valve 8 on refrigerant pipeline, adjust the pressure of the flow of coolant in increasing enthalpy pipeline 17, with Meet the fast-refrigerating of air conditioning system and heat.
Further, with reference to Fig. 1, described first electronic throttle part 5 and the second electronic throttle part 6 respectively electronics are swollen Swollen valve or heating power expansion valve.
In the present embodiment, described first electronic throttle part 5 and the second electronic throttle part 6 be respectively heating power expansion valve and Electric expansion valve, in other embodiments, the first electronic throttle part can also be electric expansion valve, the second electronic throttle part It can also be heating power expansion valve.Electric expansion valve or heating power expansion valve are respectively provided with good throttling action, wherein, electric expansion valve Can the degree of superheat as needed control with the aperture of heating power expansion valve.
Further, with reference to Fig. 1, described air-conditioner outdoor unit also includes controller (not shown), module heat dissipating import temperature-sensitive Bag 15 and module heat dissipating outlet temperature-sensitive bag 16;
Described module heat dissipating import temperature-sensitive bag 15 is arranged at off-premises station electronic heating element 10 and the second electronic throttle part 6 Between;
Described module heat dissipating outlet temperature-sensitive bag 16 be arranged at off-premises station electronic heating element 10 and air injection enthalpy-increasing compressor 1 it Between;
The input of described controller connects described module heat dissipating import temperature-sensitive bag 15 and module heat dissipating outlet temperature-sensitive bag 16, Outfan connects the second electronic throttle part 6.
The multi-online air-conditioning system of the present embodiment, described air-conditioner outdoor unit also includes controller, module heat dissipating import temperature-sensitive Bag 15 and module heat dissipating outlet temperature-sensitive bag 16, module heat dissipating import temperature-sensitive bag 15 and module heat dissipating outlet temperature-sensitive bag 16 are built-in respectively One temperature sensor;Described module heat dissipating import temperature-sensitive bag 15 is arranged at off-premises station electronic heating element 10 and the second electronic throttle Between part 6, for gathering the inlet temperature of increasing enthalpy pipeline 17 arrival end, and this inlet temperature is sent to described controller; Described module heat dissipating outlet temperature-sensitive bag 16 is arranged between off-premises station electronic heating element 10 and air injection enthalpy-increasing compressor 1, is used for The outlet temperature of collection increasing enthalpy pipeline 17 port of export, and this outlet temperature is sent to described controller;Described controller defeated Enter end and connect described module heat dissipating import temperature-sensitive bag 15 and module heat dissipating outlet temperature-sensitive bag 16, outfan connects the second electronic throttle Part 6, for calculating degree of superheat D, and controls the aperture of the second electronic throttle part 6 according to described degree of superheat D.
Described degree of superheat D=outlet temperature-inlet temperature, in 3 DEG C of 0 DEG C of < D <, the opening of the second electronic throttle part 6 Spend for -8;In 5 DEG C of 3 DEG C≤D <, the aperture of the second electronic throttle part 6 is -4;In 8 DEG C of 5 DEG C≤D <, the second electronics section The aperture of stream unit 6 keeps constant;In 10 DEG C of 8 DEG C≤D <, the aperture of the second electronic throttle part 6 is+4;In D >=10 DEG C When, the aperture of the second electronic throttle part 6 is+8.
The work process of the multi-online air-conditioning system of the present embodiment is as follows:
During air conditioning system refrigerating operaton, coolant is compressed to the gaseous coolant of High Temperature High Pressure in air injection enthalpy-increasing compressor 1, Through cross valve 2, enter coolant and water heat exchange unit 4 carries out heat exchange, external environment discharges heat, and gaseous coolant becomes liquid Coolant, a part of coolant enters increasing enthalpy pipeline 21, throttles into middle pressure liquid refrigerants through the second electronic throttle part 6, is passing through The heat of its generation is absorbed, evaporation becomes middle pressure gaseous coolant, from air injection enthalpy-increasing compressor 1 during off-premises station electronic heating element 10 Jet 1c enter middle pressure chamber;Another part coolant flow to the air-conditioner outdoor unit of parallel connection from off-premises station liquid side stop valve 8, through the The first indoor heat exchanger 11 He is respectively enterd after one indoor set throttle part 12 and the second indoor set throttle part 14 reducing pressure by regulating flow Second indoor heat exchanger 13, heat absorption flashes to the gaseous coolant of low-temp low-pressure, then returns to air-conditioning through off-premises station gas side stop valve 9 In off-premises station, enter gas-liquid separator 7 through cross valve 2 and carry out gas-liquid separation, the low-temp low-pressure gaseous coolant isolated is through jet The gas returning port 1b of enthalpy-increasing compressor 1 returns to air injection enthalpy-increasing compressor 1, completes a kind of refrigeration cycle.
During air conditioning system heating operation, coolant is compressed to the gaseous coolant of High Temperature High Pressure in air injection enthalpy-increasing compressor 1, The pipeline connecting off-premises station gas side stop valve 9 through cross valve 2 enters indoor apparatus of air conditioner in parallel, respectively through the first indoor heat exchange , to indoor environment heat release, condensed coolant is respectively through the first indoor set throttle part 12 He for device 11 and the second indoor heat exchanger 13 Second indoor set throttle part 14 carries out reducing pressure by regulating flow, then passes through off-premises station liquid side stop valve 8 and enters air-conditioner outdoor unit, so Afterwards, a part of coolant enters increasing enthalpy pipeline 17, throttles into middle pressure liquid refrigerants through the second electronic throttle part 6, through room The heat of its generation is absorbed, evaporation becomes middle pressure gaseous coolant, from air injection enthalpy-increasing compressor 1 during outer machine electronic heating element 10 Jet 1c enters middle pressure chamber;Another part coolant then becomes the liquid of low-temp low-pressure by the first electronic throttle part 5 reducing pressure by regulating flow State coolant, subsequently enters coolant and water heat exchange unit 4 absorbs the heat of external environment condition, and the gaseous state that evaporation becomes low-temp low-pressure is cold Matchmaker, flows into gas-liquid separator 7 again by cross valve 2, returns to air injection enthalpy-increasing compressor 1, complete once to heat circulation.
Multi-online air-conditioning system of the present utility model, is constituted using water source cooling unit 3 and coolant and water heat exchange unit 4 Cooling circuit, provides the water source of higher temperature when low temperature environment heats, and provides the water of lower temperature in high temperature environment refrigerating Coolant in source, with air conditioning system carries out heat exchange, solves multi-online air-conditioning system under low temperature or hot environment, heat exchange efficiency Low technical problem.Multi-online air-conditioning system of the present utility model, structure is simple, had both improve system effectiveness, and can reach section again The purpose of energy environmental protection.
The foregoing is only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, Every equivalent structure under utility model of the present utility model is conceived, made using this utility model description and accompanying drawing content Conversion, or directly/be indirectly used in other related technical fields and be included in scope of patent protection of the present utility model.

Claims (7)

1. a kind of multi-online air-conditioning system is it is characterised in that include the air conditioning chamber of an air-conditioner outdoor unit and at least two parallel connections Interior machine, described air-conditioner outdoor unit includes air injection enthalpy-increasing compressor, cross valve, water source cooling unit, coolant and water heat exchange unit, room Outer machine liquid side stop valve, off-premises station gas side stop valve and off-premises station electronic heating element;
Described coolant and water heat exchange unit arrival end connect cross valve, and the port of export connects off-premises station liquid side stop valve, described water source Cooling unit constitutes a cooling circuit with coolant and water heat exchange unit, carries out heat exchange with coolant;
Described off-premises station electronic heating element is provided with increasing enthalpy pipeline, and the port of export of this increasing enthalpy pipeline connects air injection enthalpy-increasing compression Machine, arrival end is connected to the pipeline between coolant and water heat exchange unit and off-premises station liquid side stop valve;
Described off-premises station gas side stop valve one end connects cross valve, and the other end passes through described indoor apparatus of air conditioner in parallel respectively and connects Off-premises station liquid side stop valve.
2. multi-online air-conditioning system according to claim 1 is it is characterised in that this multi-online air-conditioning system also includes gas-liquid Separator, the arrival end of this gas-liquid separator connects cross valve, and the port of export connects air injection enthalpy-increasing compressor.
3. multi-online air-conditioning system according to claim 1 is it is characterised in that this multi-online air-conditioning system includes two parallel connections The first indoor apparatus of air conditioner and the second indoor apparatus of air conditioner.
4. multi-online air-conditioning system according to claim 3 is it is characterised in that described first indoor apparatus of air conditioner includes connecting The first indoor heat exchanger and the first indoor set throttle part, described second indoor apparatus of air conditioner includes the second indoor heat exchange connected Device and the second indoor set throttle part;
Described first indoor heat exchanger and second indoor heat exchanger one end connect off-premises station gas side stop valve respectively, and the other end is respectively Off-premises station liquid side stop valve is connected by the first indoor set throttle part and the second indoor set throttle part.
5. multi-online air-conditioning system according to claim 1 is it is characterised in that described coolant and the water heat exchange unit port of export It is provided with the first electronic throttle part and the stop valve of off-premises station liquid side between, the arrival end of described increasing enthalpy pipeline and off-premises station electronics are sent out It is provided with the second electronic throttle part between thermal element.
6. multi-online air-conditioning system according to claim 5 is it is characterised in that described first electronic throttle part and second Electronic throttle part is respectively electric expansion valve or heating power expansion valve.
7. multi-online air-conditioning system according to claim 6 is it is characterised in that described air-conditioner outdoor unit also includes controlling Device, module heat dissipating import temperature-sensitive bag and module heat dissipating outlet temperature-sensitive bag;
Described module heat dissipating import temperature-sensitive bag is arranged between off-premises station electronic heating element and the second electronic throttle part;
Described module heat dissipating outlet temperature-sensitive bag is arranged between off-premises station electronic heating element and air injection enthalpy-increasing compressor;
The input of described controller connects described module heat dissipating import temperature-sensitive bag and module heat dissipating outlet temperature-sensitive bag, and outfan is even Connect the second electronic throttle part.
CN201620910181.6U 2016-08-19 2016-08-19 Multi -split air conditioning system Active CN205939465U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108195099A (en) * 2017-12-27 2018-06-22 青岛海信日立空调系统有限公司 A kind of connected machine and its control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108195099A (en) * 2017-12-27 2018-06-22 青岛海信日立空调系统有限公司 A kind of connected machine and its control method
CN108195099B (en) * 2017-12-27 2020-05-15 青岛海信日立空调系统有限公司 Variable frequency multi-split air conditioner and control method thereof

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