CN214249791U - Multi-split air conditioner - Google Patents
Multi-split air conditioner Download PDFInfo
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- CN214249791U CN214249791U CN202023088983.9U CN202023088983U CN214249791U CN 214249791 U CN214249791 U CN 214249791U CN 202023088983 U CN202023088983 U CN 202023088983U CN 214249791 U CN214249791 U CN 214249791U
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Abstract
The present disclosure provides a multi-split air conditioner, including: the air conditioner comprises a compressor, an outdoor heat exchanger, a first air side pipe, a second air side pipe and a liquid side pipe, wherein the first air side pipe is communicated with an exhaust end of the compressor; the compressor further comprises a first three-way valve and a second three-way valve, wherein a first end of the first three-way valve and a fourth end of the second three-way valve are both communicated with the first gas side pipe, a second end of the first three-way valve is communicated with a sixth end of the second three-way valve and then communicated to a gas suction end of the compressor, a third end of the first three-way valve is communicated with the second gas side pipe, and a fifth end of the second three-way valve is communicated with the outdoor heat exchanger. According to the three-way valve, a larger space can be provided for the design of a unit pipeline system under the multiple modes of refrigeration, heating, refrigeration + hot water production, heating + hot water production, hot water production + floor heating and the like, the manufacturing cost of the three-way valve is lower than that of the four-way valve, and the purpose of lean design is achieved.
Description
Technical Field
The disclosure relates to the technical field of multi-split air conditioners, in particular to a multi-split air conditioner.
Background
The modularized full-function multi-split air conditioner is a new generation multi-split air conditioner integrating the functions of refrigeration, heating, floor heating, water heating and the like. The multifunctional electric heating cooker can realize multiple functions at the same time, has multiple functions, and has very few products in the current market, thereby having great development prospect. However, to realize multiple functions, it means that the system itself has a complex control system, such as serial-parallel combination control of compressors, three-way valves, two-way valve control, combination control of various valve bodies, and pipeline system control, which all make the structure and control system of the unit extremely complex, and bring great difficulty to design development and later maintenance of the unit. The dual three-way valve structure provides a necessary and important mode switching function for the modular multifunctional multi-split air conditioner, and is an essential loop in a control system. However, the double four-way structure has large volume, occupies more space of the unit, brings great inconvenience for pipeline design of the unit and the like, and is very easy to cause the problems of air leakage and air leakage of the system.
Because the modular full-function multi-split air conditioner in the prior art usually adopts a double-three-way valve structure to realize the mode switching function and control, but the double-four-way valve structure has large volume and occupies more unit space, and brings many technical problems of inconvenience and the like for the pipeline design of the unit, the multi-split air conditioner is researched and designed in the disclosure.
Disclosure of Invention
Therefore, the technical problem to be solved by the present disclosure is to overcome the defects that a modular full-function multi-split air conditioner in the prior art usually adopts a double-three-way valve structure to realize mode switching function and control, but the double-four-way valve structure is large in size and occupies a large amount of unit space, thereby providing a multi-split air conditioner.
In order to solve the above problems, the present disclosure provides a multi-split air conditioner, which includes:
the system comprises a compressor, an outdoor heat exchanger, a first gas side pipe, a second gas side pipe and a liquid side pipe, wherein the pressure of the first gas side pipe is greater than that of the second gas side pipe, and the first gas side pipe is communicated with the exhaust end of the compressor;
the compressor further comprises a first three-way valve and a second three-way valve, wherein a first end of the first three-way valve and a fourth end of the second three-way valve are both communicated with the first gas side pipe, a second end of the first three-way valve is communicated with a sixth end of the second three-way valve and then communicated to a gas suction end of the compressor, a third end of the first three-way valve is communicated with the second gas side pipe, and a fifth end of the second three-way valve is communicated with the outdoor heat exchanger.
In some embodiments, any two ends of the first end, the second end and the third end of the first three-way valve can be connected, and the other end is disconnected;
any two ends of the fourth end, the fifth end and the sixth end in the second three-way valve can be communicated, and the other end of the second three-way valve is disconnected.
In some embodiments, at least one indoor unit is further disposed between the second air side pipe and the liquid side pipe, the indoor unit includes an indoor heat exchanger and an indoor unit pipeline, and the indoor unit pipeline is provided with the indoor heat exchanger and a first throttling device.
In some embodiments, the constant-temperature dehumidification internal machine further comprises at least one constant-temperature dehumidification internal machine, the constant-temperature dehumidification internal machine comprises a first heat exchanger and a second heat exchanger, the first heat exchanger is arranged on the second pipeline, one end of the second pipeline is communicated to the second gas-side pipe, the other end of the second pipeline is communicated to the liquid-side pipe, a second throttling device is further arranged on the second pipeline, the second heat exchanger is arranged on the third pipeline, one end of the third pipeline is communicated to the first gas-side pipe, the other end of the third pipeline is communicated to the liquid-side pipe, and a third throttling device is further arranged on the third pipeline.
In some embodiments, the water heater further comprises at least one hot water module, the hot water module comprises a water tank and a fourth pipeline, the water tank is arranged on the fourth pipeline, a fourth throttling device is arranged on the fourth pipeline, one end of the fourth pipeline is communicated to the liquid side pipe, the other end of the fourth pipeline is communicated to the first gas side pipe through a fifth pipeline, and the other end of the fourth pipeline is further communicated to the second gas side pipe through a sixth pipeline.
In some embodiments, a first control valve is further disposed on the fifth pipeline, and a second control valve is further disposed on the sixth pipeline.
In some embodiments, the floor heating system further comprises at least one floor heating module, the floor heating module comprises a floor heating heat exchange assembly and a seventh pipeline, the floor heating heat exchange assembly is arranged on the seventh pipeline, a fifth throttling device is arranged on the seventh pipeline, and one end of the seventh pipeline is communicated to the liquid side pipe while the other end of the seventh pipeline is communicated to the first gas side pipe.
In some embodiments, one end of the outdoor heat exchanger is communicated with the second three-way valve, the other end of the outdoor heat exchanger is communicated with a subcooler, the other end of the subcooler is communicated to the liquid side pipe, and a sixth throttling device is further arranged between the outdoor heat exchanger and the subcooler.
In some embodiments, the air conditioner further comprises a ninth pipeline, one end of the ninth pipeline is communicated with the liquid side pipe between the subcooler and the indoor side, the other end of the ninth pipeline penetrates through the subcooler and is communicated to the air suction end of the compressor, and a seventh throttling device is further arranged on the ninth pipeline.
In some embodiments, the gas-liquid separator is arranged at the gas suction end of the compressor; and/or the compressor comprises a first compressor and a second compressor which are arranged in parallel.
The multi-split air conditioner provided by the disclosure has the following beneficial effects:
the mode that this is disclosed through utilizing two three-way valves to make up the control replaces two cross valves controls, can realize effectively that original multiple on-line's that adopts two cross valves scheme can realize equally, heat, refrigeration + system hot water, heat + system hot water, system hot water + ground warms up, heat + ground warm + system hot water and constant temperature dehumidification + ground warm + system hot water etc. a plurality of modes, the scheme of this disclosure not only can provide bigger space and more excellent scheme for unit pipe-line system's design, effectively solved two three-way valve systems occupation space big problem in the unit structure, can improve space utilization, the optimal design, and the manufacturing cost of three-way valve is less than the cross valve, reached the purpose of lean on design.
Drawings
Fig. 1 is a system configuration diagram of a multi-split air conditioner of the present disclosure;
fig. 2 is a system diagram of a multi-split air conditioner of the present disclosure in a cooling mode;
fig. 3 is a system diagram of a multi-split air conditioner of the present disclosure in a cooling + heating mode;
fig. 4 is a system diagram of a multi-split air conditioner of the present disclosure in a heating mode;
fig. 5 is a system diagram of a multi-split air conditioner in a heating + floor heating + hot water mode according to the present disclosure;
fig. 6 is a system diagram of the multi-split air conditioner in a constant temperature dehumidification + floor heating + heating water mode according to the present disclosure.
The reference numerals are represented as:
1. a compressor; 1a, a suction end; 1b, an exhaust end; 2. an outdoor heat exchanger; 31. a first gas-side tube; 32. a second gas-side tube; 33. a liquid side pipe; 41. a first three-way valve; d1, first end; c1, second end; s1, a third end; 42. a second three-way valve; d2, a fourth end; c2, fifth end; s2, a sixth end; 51. a first control valve; 52. a second control valve; 61. an indoor unit; 611. an indoor heat exchanger; 62. a constant-temperature dehumidification inner machine; 621. a first heat exchanger; 622. a second heat exchanger; 71. a first throttling device; 72. a second throttling device; 73. a third throttling means; 74. a fourth throttling device; 75. a fifth throttling device; 76. a sixth throttling means; 77. a seventh throttling means; 8. a hot water module; 81. a water tank; 9. a floor heating module; 91. a ground heating heat exchange assembly; 13. a subcooler; 14. a gas-liquid separator; 151. a first large valve; 152. a second large valve; 153. a small valve; 101. indoor unit pipelines; 102. a second pipeline; 103. a third pipeline; 104. a fourth pipeline; 105. a fifth pipeline; 106. a sixth pipeline; 107. a seventh pipeline; 108. an eighth pipeline; 109. a ninth pipeline.
Detailed Description
As shown in fig. 1 to 6, the present disclosure provides a multi-split air conditioner, which includes:
the heat exchanger comprises a compressor 1, an outdoor heat exchanger 2, a first gas side pipe 31, a second gas side pipe 32 and a liquid side pipe 33, wherein the pressure of the first gas side pipe 31 is greater than that of the second gas side pipe 32, and the first gas side pipe 31 is communicated with the exhaust end of the compressor 1;
a first three-way valve 41 and a second three-way valve 42 are further included, wherein a first end D1 of the first three-way valve 41 and a fourth end D2 of the second three-way valve 42 are both communicated with the first gas-side pipe 31, a second end C1 of the first three-way valve 41 is communicated with a sixth end S2 of the second three-way valve 42 and then communicated to a suction end of the compressor 1, a third end S1 of the first three-way valve 41 is communicated with the second gas-side pipe 32, and a fifth end C2 of the second three-way valve 42 is communicated with the outdoor heat exchanger 2.
The mode that this is disclosed through utilizing two three-way valves to make up the control replaces two cross valves controls, can realize effectively that original multiple on-line's that adopts two cross valves scheme can realize equally, heat, refrigeration + system hot water, heat + system hot water, system hot water + ground warms up, heat + ground warm + system hot water and constant temperature dehumidification + ground warm + system hot water etc. a plurality of modes, the scheme of this disclosure not only can provide bigger space and more excellent scheme for unit piping system's design, effectively solved two cross valve systems occupation space big problem in unit structure, can improve space utilization, the optimal design, and the manufacturing cost of three-way valve is less than the cross valve, reached the purpose of lean on design.
The outer machine part of the system mainly comprises: the system comprises compressors (1 or more), 1 three-way valve, two matched electromagnetic valves, 1 outdoor unit heat exchanger (namely an outdoor heat exchanger), 1 plate type heat exchanger (namely an subcooler), 2 electronic expansion valves (a heating electronic expansion valve (namely a sixth throttling device 76), a subcooler electronic expansion valve (namely a seventh throttling device 77)), a fan and the like;
the indoor machine of the system can be divided into 2 types, one type is a single heat exchanger indoor machine, and the single heat exchanger indoor machine comprises 1 heat exchanger, 1 electronic expansion valve, a fan and the like; the other type is an indoor unit with double heat exchangers (namely a constant-temperature dehumidification indoor unit), and comprises 2 heat exchangers (a subway heat exchanger and a second heat exchanger), 2 electronic expansion valves, a fan and the like.
The hot water module of the system comprises: 2 electromagnetic valves, a water tank and 1 electronic expansion valve;
the floor heating module of system contains: 1 set (or a plurality of sets) of heat exchange tail ends of the floor heating coil pipes and 1 (or a plurality of) electronic expansion valves.
The system is of a three-tube system, namely, a constant high-pressure air tube (a high-pressure section of an air side tube in a system diagram, namely a first air side tube 31) is arranged in addition to a common liquid side tube 33 and a second air side tube 32.
In some embodiments, any two ends of the first end D1, the second end C1, and the third end S1 in the first three-way valve 41 can be connected, and the other end is disconnected;
any two ends of the fourth end D2, the fifth end C2, and the sixth end S2 of the second three-way valve 42 can be connected, and the other end is disconnected. This is the preferred different communication form of two three-way valves of this disclosure, can realize forming different modes and the combination between the mode from the different on-state of two three-way valves.
In some embodiments, at least one indoor unit 61 is further disposed between the second air side pipe 32 and the liquid side pipe 33, the indoor unit 61 includes an indoor heat exchanger 611 and an indoor unit pipe 101, and the indoor unit pipe 101 is disposed with the indoor heat exchanger 611 and the first throttling device 71. This is disclosed through the indoor set that connects between second gas side pipe and the liquid side pipe and set up, and the indoor set includes indoor heat exchanger and indoor set pipeline and first throttling arrangement, can make many online systems with the refrigerant leading-in to the indoor heat exchanger of indoor set in, in order to refrigerate or heat to carry out effectual throttle step-down effect through first throttling arrangement.
In some embodiments, the indoor constant temperature dehumidification unit 62 is further included, the indoor constant temperature dehumidification unit 62 includes a first heat exchanger 621 and a second heat exchanger 622, the first heat exchanger 621 is disposed on the second pipeline 102, one end of the second pipeline 102 is communicated to the second air side pipe 32, the other end is communicated to the liquid side pipe 33, the second pipeline 102 is further provided with a second throttling device 72, the second heat exchanger 622 is disposed on the third pipeline 103, one end of the third pipeline 103 is communicated to the first air side pipe 31, the other end is communicated to the liquid side pipe 33, and the third pipeline 103 is further provided with a third throttling device 73. The utility model discloses still through setting up the constant temperature dehumidification indoor unit, it includes first and second heat exchanger, and first heat exchanger is connected between second gas side pipe and liquid side pipe, can carry out the effect of cooling evaporation through this first heat exchanger, in order to cool down the air, and set up between first gas side pipe and liquid side pipe through the second heat exchanger, can carry out the exothermic effect of condensation through the second heat exchanger, in order to heat the air, finally make the air earlier through first heat exchanger cooling, the dehumidification, the rethread second heat exchanger heats up the effect of heating, the completion carries out the effect of constant temperature dehumidification to the air.
In some embodiments, the at least one hot water module 8 is further included, the hot water module 8 includes a water tank 81 and a fourth pipeline 104, the water tank 81 is disposed on the fourth pipeline 104, the fourth pipeline 104 is disposed with a fourth throttling device 74, one end of the fourth pipeline 104 is connected to the liquid side pipe 33, the other end of the fourth pipeline 104 is connected to the first air side pipe 31 through a fifth pipeline 105, and the other end of the fourth pipeline 104 is further connected to the second air side pipe 32 through a sixth pipeline 106. This is openly through setting up the hot water module to make the water tank can communicate to between first gas side pipe and the liquid side pipe, can flow through the water tank through the refrigerant between first gas side pipe and the liquid side pipe and heat in order to prepare hot water to water, the rethread water tank communicates to between second gas side pipe and the liquid side pipe, can flow through the water tank through the refrigerant between second gas side pipe and the liquid side pipe in order to heat water and prepare hot water.
In some embodiments, the fifth pipeline 105 is further provided with a first control valve 51, and the sixth pipeline 106 is further provided with a second control valve 52. This is disclosed still can control whether the water tank switches on with first gas side pipe and liquid side pipe through the first control valve that sets up on the fifth pipeline, can control whether the water tank switches on with second gas side pipe and liquid side pipe through the second control valve that sets up on the sixth pipeline.
In some embodiments, the floor heating module 9 further comprises at least one floor heating module 9, the floor heating module 9 comprises a floor heating heat exchange assembly 91 and a seventh pipeline 107, the floor heating heat exchange assembly 91 is arranged on the seventh pipeline 107, a fifth throttling device 75 is arranged on the seventh pipeline 107, and one end of the seventh pipeline 107 is communicated to the liquid side pipe 33, and the other end of the seventh pipeline 107 is communicated to the first gas side pipe 31. This openly through warm up the module to through warm up heat transfer assembly and seventh pipeline's setting, make warm up heat transfer assembly and connect between first gas side pipe and liquid side pipe, in order to utilize the refrigerant to warm up heat transfer assembly and effectively heat, in order to accomplish the effect of warming up.
In some embodiments, one end of the outdoor heat exchanger 2 is communicated with the second three-way valve 42, the other end is communicated with the subcooler 13, the other end of the subcooler 13 is communicated to the liquid side pipe 33, and a sixth throttling device 76 is further arranged between the outdoor heat exchanger 2 and the subcooler 13. The outdoor heat exchanger can be heated or cooled through the arrangement of the subcooler, the outdoor heat exchanger and the sixth throttling device, and the subcooler can be used for subcooling the refrigerant.
In some embodiments, a ninth pipeline 109 is further included, one end of the ninth pipeline 109 is communicated with the liquid side pipe 33 between the subcooler 13 and the indoor side, and the other end passes through the subcooler 13 and is communicated to the suction end of the compressor 1, and a seventh throttling device 77 is further disposed on the ninth pipeline 109. The refrigerant enters the subcooler to absorb heat and raise temperature after being depressurized by the seventh throttling device of the ninth pipeline, finally returns to the compressor, and cools the other pipeline, so that the supercooling effect is achieved, and the evaporation heat absorption efficiency is improved.
In some embodiments, the gas-liquid separator 14 is further communicated with the gas suction end of the compressor 1; and/or, the compressor 1 comprises a first compressor and a second compressor which are arranged in parallel; and/or the first control valve 51 and/or the second control valve 52 are solenoid valves. The air-liquid separator can perform the function of gas-liquid separation, the two parallel compressors can perform the effect of improving the displacement and the refrigerant running capacity, the control valve is preferably an electromagnetic valve which can provide a larger space and a better scheme for the design of a unit pipeline system, and the air tightness of the electromagnetic valve is better than that of a three-way valve, so that the air tightness of the system can be improved to a certain extent.
The present disclosure also provides a control method of a multi-split air conditioner as set forth in any one of the above, which implements at least one of cooling, heating water, and floor heating in a room by controlling the first and second three- way valves 41 and 42. The mode that this is disclosed through utilizing two three-way valves to make up the control replaces two cross valves controls, can realize effectively that original multiple on-line's that adopts two cross valves scheme can realize equally, heat, refrigeration + system hot water, heat + system hot water, system hot water + ground warms up, heat + ground warm + system hot water and constant temperature dehumidification + ground warm + system hot water etc. a plurality of modes, the scheme of this disclosure not only can provide bigger space and more excellent scheme for unit pipe-line system's design, effectively solved two three-way valve systems occupation space big problem in the unit structure, can improve space utilization, the optimal design, and the manufacturing cost of three-way valve is less than the cross valve, reached the purpose of lean on design.
In some embodiments, when cooling is required, the first three-way valve 41 is controlled to make the second end C1 and the third end S1 communicate and the first end D1 is open, and the second three-way valve 42 is controlled to make the fourth end D2 and the fifth end C2 communicate and the sixth end S2 is open; when the first throttle device 71 is included, the first throttle device 71 is opened.
When the system is refrigerating, as shown in fig. 2. The exhaust gas of the compressor is sent to an outdoor heat exchanger through a second three-way valve 42 (a D2 pipe is communicated with a C2 pipe, and an S2 pipe is disconnected), condensation heat is carried out on a condenser of the outdoor heat exchanger, the exhaust gas flows through a heating electronic expansion valve and a subcooler which are in a fully-opened state, enters an indoor unit (an indoor unit 1/an indoor unit n and a constant temperature dehumidification indoor unit 1/a constant temperature dehumidification indoor unit n) unit, enters the indoor heat exchanger after being throttled by the electronic expansion valve, and returns to a gas-liquid separator through a first three-way valve 41 (an S1 pipe is communicated with a C1 pipe, and a D1 pipe is disconnected) after being evaporated and absorbed heat in the heat exchanger, and then returns to the compressor to complete a refrigeration cycle.
In some embodiments, when cooling and heating water are required, the first three-way valve 41 is controlled to make the second end C1 and the third end S1 communicate and the first end D1 is disconnected, and the second three-way valve 42 is controlled to make the fourth end D2 and the fifth end C2 communicate and the sixth end S2 is disconnected;
the first throttle device 71 is opened, and when the first control valve 51 and the second control valve 52 are included, the first control valve 51 is opened and the second control valve 52 is closed at the same time.
When the system is refrigerating and heating water, as shown in fig. 3. And a water tank flow path is added on the basis of a system refrigeration mode flow path. One path of exhaust of the compressor is used for refrigerating through a path shown in figure 3, the other path of refrigerant enters a water tank through a constant high-pressure pipe to produce hot water, then passes through an indoor unit heat exchanger, enters a first three-way valve 41 through a low-pressure side air pipe to reach a steam branch, and finally returns to the compressor to complete a cycle. (in this mode, S1 in the first three-way valve 41 communicates with the C1 end, and D2 in the second three-way valve 42 communicates with the C2 end).
In some embodiments, when heating is required, the first three-way valve 41 is controlled to make the first end D1 and the third end S1 communicate and the second end C1 is disconnected, and the second three-way valve 42 is controlled to make the fifth end C2 and the sixth end S2 communicate and the fourth end D2 is disconnected;
when the first throttle device 71 is included, the first throttle device 71 is opened; and/or, when a second flow restriction 72 is included, opening said second flow restriction 72; and/or, when a third throttling means 73 is included, said third throttling means 73 is opened.
When the system is heating, it is shown in fig. 4. The exhaust gas of the compressor enters the indoor space (a common indoor machine and a constant temperature dehumidification indoor machine) through a constant high pressure pipe for heating, then the refrigerant passes through a liquid side pipe, a subcooler electronic expansion valve, a subcooler and an outdoor machine heat exchanger, and after evaporation and heat absorption are carried out in the subcooler and the outdoor machine heat exchanger, the refrigerant enters a steam branch through a three-way valve and returns to the compressor again, so that a heating cycle is completed. (in this mode, D1 communicates with S1 in the first three-way valve 41, and S2 communicates with C2 in the second three-way valve 42).
In some embodiments, when heating + floor heating + heating water is required, the first three-way valve 41 is controlled to make the first end D1 and the third end S1 communicate and the second end C1 is disconnected, and the second three-way valve 42 is controlled to make the fifth end C2 and the sixth end S2 communicate and the fourth end D2 is disconnected;
when the first throttle device 71 is included, the first throttle device 71 is opened; and/or, when a second flow restriction 72 is included, opening said second flow restriction 72; and/or, when a third throttling means 73 is included, said third throttling means 73 is opened; when the first control valve 51 and the second control valve 52 are included, the first control valve 51 is opened and the second control valve 52 is closed, and when the fifth throttling means 75 is included, the fifth throttling means 75 is controlled to be opened.
When the system heats, warms up and heats water, as shown in fig. 5. And a water tank flow path and floor heating are added on the basis of a system heating mode flow path. The exhaust gas of the compressor enters an indoor unit (a common indoor unit, a constant-temperature dehumidification indoor unit, a floor heating unit and a water tank, and one or more indoor units can be combined) through a constant-pressure pipe (a first gas side pipe 31), a first three-way valve 41 and a constant-low pressure pipe (a second gas side pipe 32) to perform heating and water heating, then a refrigerant passes through a liquid side pipe, an electronic expansion valve of a subcooler, the subcooler and an outdoor unit heat exchanger, and after evaporation and heat absorption are performed in the subcooler and the outdoor unit heat exchanger, the refrigerant enters a steam branch through a second three-way valve 42 and returns to the compressor, and a heating cycle is completed. (in this mode, D1 communicates with S1 in the first three-way valve 41, and S2 communicates with C2 in the second three-way valve 42).
In some embodiments, when thermostatic dehumidification + floor heating + heating water heating is required, the first three-way valve 41 is controlled to make the second end C1 and the third end S1 communicate and the first end D1 is disconnected, and the second three-way valve 42 is controlled to make the fourth end D2 and the fifth end C2 communicate and the sixth end S2 is disconnected;
when a second throttling device 72 and a third throttling device 73 are included, the second throttling device 72 and the third throttling device 73 are opened simultaneously; when the first control valve 51 and the second control valve 52 are included, the first control valve 51 is opened and the second control valve 52 is closed, and when the fifth throttling means 75 is included, the fifth throttling means 75 is controlled to be opened.
When the system is used for floor heating, water heating and constant temperature dehumidification, as shown in fig. 6. The exhaust gas of the compressor enters the ground heating module and the hot water module through the constant high pressure pipe to respectively perform the ground heating mode and the hot water heating mode, then passes through the liquid side pipe, the subcooler electronic expansion valve, the subcooler and the outdoor unit heat exchanger, and enters the steam branch through the second three-way valve 42 to return to the compressor after being evaporated and absorbed in the subcooler and the outdoor unit heat exchanger, so that a cycle is completed. In the south-returning day, the room is damp and cool, and although the floor heating system heats, the constant-temperature dehumidification function can be used in the field. At the moment, electronic expansion valves of the constant-temperature dehumidification internal machine are all opened. High-pressure gas is condensed by the constant-temperature dehumidification inner machine heating heat exchanger and then passes through the throttle valve, then is converged with a gas-liquid mixture condensed by other modules, then enters the dehumidification heat exchanger for evaporation, then enters the low-pressure pipeline of the first three-way valve 41 through the small valve, and then is converged into steam and returned to the compressor. At the moment, air passing through the constant-temperature dehumidification internal machine is firstly refrigerated and dehumidified in the dehumidification heat exchanger to remove air moisture, and then is heated to the original temperature in the heating heat exchanger, so that dehumidification can be realized without cooling. (in this mode, S1 in the first three-way valve 41 communicates with the A1 end, and D2 in the second three-way valve 42 communicates with the C2 end).
The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present disclosure, and these modifications and variations should also be regarded as the protection scope of the present disclosure.
Claims (10)
1. The utility model provides a many online air conditioners which characterized in that: the method comprises the following steps:
the air conditioner comprises a compressor (1), an outdoor heat exchanger (2), a first air side pipe (31), a second air side pipe (32) and a liquid side pipe (33), wherein the pressure of the first air side pipe (31) is greater than that of the second air side pipe (32), and the first air side pipe (31) is communicated with the exhaust end of the compressor (1);
the compressor further comprises a first three-way valve (41) and a second three-way valve (42), wherein a first end (D1) of the first three-way valve (41) and a fourth end (D2) of the second three-way valve (42) are both communicated with the first air side pipe (31), a second end (C1) of the first three-way valve (41) is communicated with a sixth end (S2) of the second three-way valve (42) and then communicated to an air suction end of the compressor (1), a third end (S1) of the first three-way valve (41) is communicated with the second air side pipe (32), and a fifth end (C2) of the second three-way valve (42) is communicated with the outdoor heat exchanger (2).
2. A multi-split air conditioner as recited in claim 1, wherein:
any two ends of the first end (D1), the second end (C1) and the third end (S1) in the first three-way valve (41) can be communicated, and the other end is disconnected;
any two ends of the fourth end (D2), the fifth end (C2), and the sixth end (S2) of the second three-way valve (42) can be connected, and the other end is disconnected.
3. A multi-split air conditioner as recited in claim 1, wherein:
at least one indoor unit (61) is further arranged between the second air side pipe (32) and the liquid side pipe (33), the indoor unit (61) comprises an indoor heat exchanger (611) and an indoor unit pipeline (101), and the indoor heat exchanger (611) and a first throttling device (71) are arranged on the indoor unit pipeline (101).
4. A multi-split air conditioner as recited in claim 1, wherein:
the constant-temperature dehumidification indoor unit (62) comprises a first heat exchanger (621) and a second heat exchanger (622), the first heat exchanger (621) is arranged on a second pipeline (102), one end of the second pipeline (102) is communicated to a second air side pipe (32), the other end of the second pipeline (102) is communicated to a liquid side pipe (33), a second throttling device (72) is further arranged on the second pipeline (102), the second heat exchanger (622) is arranged on a third pipeline (103), one end of the third pipeline (103) is communicated to a first air side pipe (31), the other end of the third pipeline is communicated to the liquid side pipe (33), and a third throttling device (73) is further arranged on the third pipeline (103).
5. A multi-split air conditioner as recited in claim 1, wherein:
the hot water system is characterized by further comprising at least one hot water module (8), wherein the hot water module (8) comprises a water tank (81) and a fourth pipeline (104), the water tank (81) is arranged on the fourth pipeline (104), a fourth throttling device (74) is arranged on the fourth pipeline (104), one end of the fourth pipeline (104) is communicated to the liquid side pipe (33), the other end of the fourth pipeline (104) is communicated to the first air side pipe (31) through a fifth pipeline (105), and the other end of the fourth pipeline (104) is communicated to the second air side pipe (32) through a sixth pipeline (106).
6. A multi-split air conditioner as recited in claim 5, wherein:
the fifth pipeline (105) is also provided with a first control valve (51), and the sixth pipeline (106) is also provided with a second control valve (52).
7. A multi-split air conditioner as recited in claim 1, wherein:
the floor heating system is characterized by further comprising at least one floor heating module (9), wherein the floor heating module (9) comprises a floor heating heat exchange assembly (91) and a seventh pipeline (107), the floor heating heat exchange assembly (91) is arranged on the seventh pipeline (107), a fifth throttling device (75) is arranged on the seventh pipeline (107), and one end of the seventh pipeline (107) is communicated to the liquid side pipe (33) and the other end of the seventh pipeline is communicated to the first gas side pipe (31).
8. A multi-split air conditioner as recited in claim 1, wherein:
one end of the outdoor heat exchanger (2) is communicated with the second three-way valve (42), the other end of the outdoor heat exchanger is communicated with the subcooler (13), the other end of the subcooler (13) is communicated to the liquid side pipe (33), and a sixth throttling device (76) is further arranged between the outdoor heat exchanger (2) and the subcooler (13).
9. A multi-split air conditioner as recited in claim 8, wherein:
the compressor further comprises a ninth pipeline (109), one end of the ninth pipeline (109) is communicated with the liquid side pipe (33), the other end of the ninth pipeline (109) penetrates through the subcooler (13) and is communicated to the suction end of the compressor (1), and a seventh throttling device (77) is further arranged on the ninth pipeline (109).
10. A multi-split air conditioner as recited in claim 1, wherein:
the air suction end of the compressor (1) is also communicated with a gas-liquid separator (14); and/or the compressor (1) comprises a first compressor and a second compressor which are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023088983.9U CN214249791U (en) | 2020-12-18 | 2020-12-18 | Multi-split air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023088983.9U CN214249791U (en) | 2020-12-18 | 2020-12-18 | Multi-split air conditioner |
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| CN214249791U true CN214249791U (en) | 2021-09-21 |
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| CN202023088983.9U Active CN214249791U (en) | 2020-12-18 | 2020-12-18 | Multi-split air conditioner |
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| CN (1) | CN214249791U (en) |
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