CN110805952A - Rotatable stop valve, air conditioning system and control method of air conditioning system - Google Patents
Rotatable stop valve, air conditioning system and control method of air conditioning system Download PDFInfo
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- CN110805952A CN110805952A CN201911175215.6A CN201911175215A CN110805952A CN 110805952 A CN110805952 A CN 110805952A CN 201911175215 A CN201911175215 A CN 201911175215A CN 110805952 A CN110805952 A CN 110805952A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims abstract description 137
- 238000011084 recovery Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 abstract description 15
- 238000004891 communication Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Multiple-Way Valves (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a rotatable stop valve, an air conditioning system and a control method of the air conditioning system, wherein the stop valve comprises: the valve body is used for communicating the pipeline; the pipeline switching device is rotatably arranged on the valve body and is rotated to switch the stop valve to be switched on or switched off. The stop valve of the invention switches the on or off of the stop valve by rotating the pipeline switching device, and the two stop valves are arranged in the system, and the indoor unit is respectively arranged between the two stop valves, thereby eliminating a liquid storage tank, reducing the cost and realizing low refrigerant filling.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a rotatable stop valve, an air conditioning system and a control method of the air conditioning system.
Background
With the increasing influence of greenhouse effect on the environment and the increasing bad climate, the demand of mass consumers on refrigeration air conditioners is increasing, and the multi-connected air conditioner in the market occupies the half-wall river mountain of the air conditioner market at present. The existing multi-split air conditioner outdoor units are provided with liquid storage tanks for controlling the amount of refrigerants in the whole system, when the number of running indoor units is large, the liquid storage tanks obtain information to release the stored refrigerants, when the number of running indoor units is small, the liquid storage tanks obtain information to start storing the refrigerants in the system, but the addition of the liquid storage tanks in pipelines can increase the system cost.
Disclosure of Invention
The invention discloses a rotatable stop valve, an air conditioning system and a control method of the air conditioning system, and solves the problem that the system cost is increased by adding a liquid storage tank in the prior art.
According to one aspect of the invention, there is disclosed a shut-off valve comprising: the valve body is used for communicating the pipeline; the pipeline switching device is rotatably arranged on the valve body and is rotated to switch the stop valve to be switched on or switched off.
Further, the valve body is provided with a first port and a second port which are communicated with each other; the pipeline switching device is rotatably arranged at the second interface position of the valve body, a third interface is arranged on the pipeline switching device, and the pipeline switching device is provided with a first working position and a second working position; in a first working position, the third interface is communicated with the second interface, and the stop valve is communicated; and in a second working position, the third interface and the second interface are staggered and disconnected, and the stop valve is closed.
Furthermore, the number of the second interfaces is multiple, the number of the third interfaces is multiple, and in the first working position, part of the third interfaces are communicated with part of the second interfaces.
Furthermore, a fourth interface is further arranged on the pipeline switching device, and the pipeline switching device is further provided with a third working position; in the third working position, the fourth interface is communicated with the second interface, meanwhile, the third interface and the second interface are staggered and disconnected, and the stop valve is connected.
Further, in the second working position, the third interface and the fourth interface are simultaneously dislocated and disconnected with the second interface, and the stop valve is closed.
Further, the stop valve further comprises: and the stepping motor is in driving connection with the pipeline switching device.
Further, the pipeline switching device is manually controlled.
According to the second aspect of the invention, an air conditioning system is also disclosed, which comprises the stop valve.
Further, the refrigerant compression cycle is also included, and the refrigerant compression cycle includes: the outdoor unit, the indoor unit, the first stop valve and the second stop valve, the indoor unit is arranged between the first stop valve and the second stop valve.
Furthermore, the indoor unit set comprises a plurality of indoor units, and the indoor units are arranged in parallel.
Further, the refrigerant compression cycle is also included, and the refrigerant compression cycle includes: the indoor unit comprises an outdoor unit, a first indoor unit, a second indoor unit, a first stop valve and a second stop valve, wherein the first indoor unit is arranged between the first stop valve and the second stop valve, and the second indoor unit is positioned between the first stop valve and the second stop valve; the first shut-off valve includes: the first valve body is provided with a first refrigerant port and a second refrigerant port which are communicated with each other, and the first refrigerant port is communicated with a first end of the outdoor unit; the first pipeline switching device is rotatably arranged at the position of a second refrigerant port of the first valve body, a third refrigerant port and a fourth refrigerant port are arranged on the first pipeline switching device, the third refrigerant port is communicated with the first end of the first indoor unit, and the fourth refrigerant port is communicated with the first end of the second indoor unit; the second stop valve includes: the second valve body is provided with a fifth refrigerant port and a sixth refrigerant port which are communicated with each other, and the fifth refrigerant port is communicated with the second end of the outdoor unit; the second pipeline switching device is rotatably arranged at the position of a sixth refrigerant port of the second valve body, a seventh refrigerant port and an eighth refrigerant port are arranged on the second pipeline switching device, the seventh refrigerant port is communicated with the second end of the first indoor unit, and the eighth refrigerant port is communicated with the second end of the second indoor unit.
Furthermore, the air conditioning system is provided with a first indoor unit conduction state, a refrigerant recovery state and a second indoor unit conduction state; in the on state of the first indoor unit, the second refrigerant port is communicated with the third refrigerant port, and the second refrigerant port and the fourth refrigerant port are staggered and disconnected simultaneously; in the refrigerant recovery state, the second refrigerant port is simultaneously staggered and disconnected with the third refrigerant port and the fourth refrigerant port; in the on state of the second indoor unit, the sixth refrigerant port is communicated with the seventh refrigerant port, and the second refrigerant port and the eighth refrigerant port are staggered and disconnected.
According to a third aspect of the present invention, there is also disclosed a control method for controlling the above air conditioning system, comprising the steps of: step S10: switching the air conditioning system to a refrigerant recovery mode, starting a compressor, and closing a first stop valve; step S20: judging whether the refrigerant in the system is recycled into the outdoor unit or not; step S30: and when the judging structure is yes, closing the second stop valve and the compressor.
The stop valves are switched on or off by rotating the pipeline switching device, when the system is used, the stop valves are respectively arranged at two ends of the indoor unit, when the indoor unit receives a starting command, all the stop valves are in a conducting state, the unit normally performs refrigeration, when the unit is shut down, the unit enters a refrigerant recovery state, the stop valve at one end of the indoor unit is firstly closed to form a cut-off, a compressor of the unit continues to operate at the moment, refrigerants in the system are forcibly recovered into the outdoor unit, the stop valve at the other side of the indoor unit is closed after recovery is finished, all the refrigerants are stored in the outdoor unit, and therefore, by arranging the two stop valves, the indoor unit is respectively arranged between the two stop valves, a liquid storage tank can be omitted, the cost is reduced, and low refrigerant.
Drawings
FIG. 1 is a schematic block diagram of a shut-off valve according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an air conditioning system according to an embodiment of the present invention;
FIG. 3 is an assembly view of a stepper motor according to an embodiment of the present invention;
legend: 10. a valve body; 11. a first interface; 12. a second interface; 20. a pipeline switching device; 21. a third interface; 22. a fourth interface; 30. an outdoor unit; 40. a first indoor unit; 50. a second indoor unit; 60. a first shut-off valve; 61. a first valve body; 611. a first refrigerant port; 612. a second refrigerant port; 62. a first pipeline switching device; 621. a third refrigerant port; 622. a fourth refrigerant port; 70. a second stop valve; 71. a second valve body; 711. a fifth refrigerant port; 712. a sixth refrigerant port; 72. a second pipeline switching device; 721. a seventh refrigerant port; 722. an eighth refrigerant port; 80. a stepper motor.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the details of the description.
The existing multi-split air conditioner outdoor units are provided with liquid storage tanks for controlling the amount of refrigerants in the whole system, when the number of running indoor units is large, the liquid storage tanks obtain information to release the stored refrigerants, and when the number of running indoor units is small, the liquid storage tanks obtain information to start storing the refrigerants in the system. At present, small rooms, such as one-room-one-room type, become mainstream house types in large cities, single users generally cannot simultaneously start air conditioners in living rooms and bedrooms, and users can select to install two sets of air conditioners or use multi-split air conditioners, so that the cost is high.
According to a first aspect of the invention, as shown in fig. 1, the invention discloses a shut-off valve comprising: the valve comprises a valve body 10 and a pipeline switching device 20, wherein the valve body 10 is used for communicating pipelines; the pipeline switching device 20 is rotatably arranged on the valve body 10, and the pipeline switching device 20 is rotated to switch the on or off of the stop valve.
It should be noted that, the pipeline switching device 20 of the stop valve of the present invention switches the stop valve on or off by rotating the pipeline switching device 20, when in use, the stop valves are respectively installed at two ends of the indoor unit, when the indoor unit receives a power-on command, all the stop valves enter a conducting state, the unit normally performs refrigeration, when the unit is shut down, the stop valve at one end of the indoor unit is closed first to form an open circuit, at this time, the compressor of the unit continues to operate, the refrigerant in the system is forcibly recovered into the outdoor unit, after the recovery is finished, the stop valve at the other side of the indoor unit is closed, at this time, all the refrigerant is stored in the outdoor unit, thereby, by setting the two stop valves, and respectively setting the indoor unit between the two stop valves, the liquid storage tank can be cancelled, the.
In the above embodiment, the valve body 10 has the first port 11 and the second port 12 communicating with each other; the pipeline switching device 20 is rotatably arranged at the position of the second port 12 of the valve body 10, a third port 21 is arranged on the pipeline switching device 20, and the pipeline switching device 20 has a first working position and a second working position; in the first working position, the third interface 21 is communicated with the second interface 12, and the stop valve is communicated; in the second operating position, the third port 21 is offset from the second port 12 and disconnected, the shut-off valve is closed, and the line switching device 20 is switched between the first operating position and the second operating position by rotation.
The pipeline switching device 20 of the stop valve controls the on and off of the stop valve by switching between a first working position and a second working position through rotation, when in use, the stop valve is respectively arranged at two ends of an indoor unit, when the indoor unit receives a starting command, the stop valves are all in a conducting state, the unit normally performs refrigeration, when the unit is shut down, the unit enters a state of recovering the refrigerant, a stop valve at one end of the indoor unit is closed first to form an open circuit, a compressor of the unit continues to operate at the moment, the refrigerant in the system is forcibly recovered into the outdoor unit, after the recovery is finished, the stop valve at the other side of the indoor unit is closed, all the refrigerants are stored in the outdoor unit, therefore, by arranging the two stop valves and respectively arranging the indoor unit between the two stop valves, a liquid storage tank can be omitted, the cost is reduced, and low refrigerant filling is realized.
In the above embodiment, there are a plurality of second ports 12 and a plurality of third ports 21, and in the first operating position, a part of the third ports 21 communicates with a part of the second ports 12. The stop valve of the present invention can realize one driving more by arranging a plurality of second interfaces 12 and third interfaces 21, that is, one outdoor unit is matched with a plurality of indoor units for use, thereby saving installation cost, and the communication between the third interface 21 and the second interface 12 can be all communication, or 1/4 communication, 1/2 connection or 3/4 communication of the interface area, while the communication between part of the third interface 21 and part of the second interface 12 means that one or two of the plurality of third interfaces 21 are communicated with the second interface 12.
In the above embodiment, the pipeline switching device 20 is further provided with a fourth interface 22, and the pipeline switching device 20 further has a third working position; in the third working position, the fourth port 22 is communicated with the second port 12, and simultaneously, the third port 21 and the second port 12 are dislocated and disconnected, and the stop valve is communicated. According to the stop valve, the third interface 21 and the fourth interface 22 are arranged on the pipeline switching device 20, so that the stop valve can be respectively connected with the two inner machines through the third interface 21 and the fourth interface 22, and the two inner machines can be controlled to be respectively conducted through rotation of the pipeline switching device 20, so that the function of one-to-two is realized, a liquid storage tank is avoided, and the production cost of the air conditioner is reduced.
In the above embodiment, in the second working position, the third port 21 and the fourth port 22 are simultaneously misaligned and disconnected from the second port 12, and the shutoff valve is closed. The stop valve of the invention can simultaneously disconnect the third interface 21 and the fourth interface 22 from the second interface 12, thereby recycling the refrigerant into the outdoor unit, avoiding the arrangement of a liquid storage tank and reducing the production cost of the air conditioner.
As shown in fig. 3, in the above embodiment, the stop valve further includes: and the stepping motor 80 is in driving connection with the pipeline switching device 20, and the stepping motor 80 is in driving connection with the pipeline switching device 20. According to the stop valve, the stepping motor 80 is arranged, so that the stepping motor 80 drives the pipeline switching device 20 to rotate, the on-off of the stop valve is controlled, manual operation is replaced, and the adjusting efficiency and convenience can be improved.
In another embodiment, not shown, the line switching device 20 is manually controlled, which ensures reliability.
According to a second aspect of the invention, as shown in fig. 2, an air conditioning system is also disclosed, comprising the above-mentioned shut-off valve.
In the above embodiment, the refrigerant compression cycle further includes: the outdoor unit 30, the indoor unit, the first stop valve 60 and the second stop valve 70, the indoor unit is installed between the first stop valve 60 and the second stop valve 70.
In the above embodiment, the indoor unit group includes a plurality of indoor units, and the plurality of indoor units are arranged in parallel.
As shown in fig. 2, the air conditioning system further includes a refrigerant compression cycle, and the refrigerant compression cycle includes: the outdoor unit 30, the first indoor unit 40, the second indoor unit 50, the first stop valve 60 and the second stop valve 70, wherein the first indoor unit 40 is arranged between the first stop valve 60 and the second stop valve 70, and the second indoor unit 50 is arranged between the first stop valve 60 and the second stop valve 70; the first cut-off valve 60 includes: a first valve body 61 and a first pipeline switching device 62, wherein the first valve body 61 is provided with a first refrigerant port 611 and a second refrigerant port 612 which are communicated with each other, and the first refrigerant port 611 is communicated with a first end of the outdoor unit; the first pipeline switching device 62 is rotatably disposed at the second refrigerant port 612 of the first valve body 61, a third refrigerant port 621 and a fourth refrigerant port 622 are disposed on the first pipeline switching device 62, the third refrigerant port 621 is communicated with the first end of the first indoor unit 40, and the fourth refrigerant port 622 is communicated with the first end of the second indoor unit 50; the second stop valve 70 includes: a second valve body 71 and a second pipeline switching device 72, wherein the second valve body 71 is provided with a fifth refrigerant port 711 and a sixth refrigerant port 712 which are communicated with each other, and the fifth refrigerant port 711 is communicated with a second end of the outdoor unit; the second pipe switching device 72 is rotatably disposed at the sixth refrigerant port 712 of the second valve body 71, the second pipe switching device 72 is provided with a seventh refrigerant port 721 and an eighth refrigerant port 722, the seventh refrigerant port 721 communicates with the second end of the first indoor unit 40, and the eighth refrigerant port 722 communicates with the second end of the second indoor unit 50.
In the above embodiment, the air conditioning system has the first indoor unit 40 on state, the refrigerant recovery state, and the second indoor unit 50 on state; in the on state of the first indoor unit 40, the second refrigerant port 612 is communicated with the third refrigerant port 621, and the second refrigerant port 612 is simultaneously staggered and disconnected from the fourth refrigerant port 622; in the refrigerant recovery state, the second refrigerant port 612 and the third refrigerant port 621 are staggered and disconnected with the fourth refrigerant port 622 at the same time; in the on state of the second indoor unit 50, the sixth refrigerant port 712 communicates with the seventh refrigerant port 721, and the second refrigerant port 612 is offset from and disconnected from the eighth refrigerant port 722.
When the air conditioning system works, when a starting command is received by a first indoor unit 40, the stop valve enters a conducting state of the first indoor unit 40, the unit normally performs refrigeration, when the unit is shut down, the unit enters a refrigerant recovery state, refrigerant is recovered and shut down, the first stop valve 60 is closed to form a circuit break, the compressor of the unit continues to operate at the moment, refrigerant in the system is forcibly recovered into the outdoor unit, the second stop valve 70 is closed after recovery is finished, and all the refrigerant is stored in the outdoor unit at the moment. If the user requests to open the second indoor unit 50 while the first indoor unit 40 is running, the stop valve is commanded to enter the refrigerant recovery state to recover the refrigerant to the outdoor unit, and then enter the second indoor unit conduction state to normally cool the second indoor unit 50.
The air conditioning system is provided with the two stop valves, and the two indoor units are respectively arranged between the two stop valves, so that a liquid storage tank can be omitted, the cost is reduced, and low refrigerant filling is realized.
According to a third aspect of the present invention, there is also disclosed a control method for controlling an air conditioning system, comprising the steps of:
step S10: switching the air conditioning system to a refrigerant recovery mode, starting the compressor, and closing the first stop valve 60;
step S20: judging whether to recycle the refrigerant in the system to the outdoor unit 30;
step S30: when the determination result is yes, the second stop valve 70 and the compressor are closed.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
Claims (13)
1. A shut-off valve, comprising:
the valve body (10) is used for communicating the pipeline;
the pipeline switching device (20) is rotatably arranged on the valve body (10), and the pipeline switching device (20) is rotated to switch the on or off of the stop valve.
2. The shut-off valve of claim 1,
the valve body (10) is provided with a first interface (11) and a second interface (12) which are communicated with each other;
the pipeline switching device (20) is rotatably arranged at the position of the second port (12) of the valve body (10), a third port (21) is arranged on the pipeline switching device (20), and the pipeline switching device (20) has a first working position and a second working position;
in the first working position, the third interface (21) is communicated with the second interface (12), and the stop valve is communicated;
in the second working position, the third interface (21) is misaligned with the second interface (12) and disconnected, and the stop valve is closed.
3. The shut-off valve of claim 2,
the number of the second interfaces (12) is multiple, the number of the third interfaces (21) is multiple, and in the first working position, part of the third interfaces (21) are communicated with part of the second interfaces (12).
4. The shut-off valve of claim 2,
the pipeline switching device (20) is also provided with a fourth interface (22), and the pipeline switching device (20) is also provided with a third working position;
in the third working position, the fourth interface (22) is communicated with the second interface (12), meanwhile, the third interface (21) and the second interface (12) are dislocated and disconnected, and the stop valve is communicated.
5. The shut-off valve of claim 4,
in the second working position, the third interface (21) and the fourth interface (22) are simultaneously dislocated with the second interface (12) and disconnected, and the stop valve is closed.
6. The shut-off valve of claim 2, further comprising:
the stepping motor (80), the stepping motor (80) with pipeline auto-change over device (20) drive connection.
7. The shut-off valve of claim 2,
the pipeline switching device (20) is manually controlled.
8. An air conditioning system, characterized in that it comprises a shut-off valve according to any one of claims 1 to 7.
9. The air conditioning system of claim 8, further comprising a refrigerant compression cycle, the refrigerant compression cycle comprising: the air conditioner comprises an outdoor unit (30), an indoor unit, a first stop valve (60) and a second stop valve (70), wherein the indoor unit is arranged between the first stop valve (60) and the second stop valve (70).
10. The air conditioning system of claim 9,
the indoor unit set comprises a plurality of indoor units, and the indoor units are arranged in parallel.
11. The air conditioning system of claim 8, further comprising a refrigerant compression cycle, the refrigerant compression cycle comprising: the outdoor unit (30), a first indoor unit (40), a second indoor unit (50), a first stop valve (60) and a second stop valve (70), wherein the first indoor unit (40) is arranged between the first stop valve (60) and the second stop valve (70), and the second indoor unit (50) is arranged between the first stop valve (60) and the second stop valve (70);
the first shut-off valve (60) includes:
a first valve body (61), the first valve body (61) having a first refrigerant port (611) and a second refrigerant port (612) which are communicated with each other, the first refrigerant port (611) being communicated with a first end of the outdoor unit (30);
the first pipeline switching device (62) is rotatably arranged at the position of a second refrigerant port (612) of the first valve body (61), a third refrigerant port (621) and a fourth refrigerant port (622) are arranged on the first pipeline switching device (62), the third refrigerant port (621) is communicated with a first end of a first indoor unit (40), and the fourth refrigerant port (622) is communicated with a first end of a second indoor unit (50);
the second shut-off valve (70) comprises:
a second valve body (71), wherein the second valve body (71) is provided with a fifth refrigerant port (711) and a sixth refrigerant port (712) which are communicated with each other, and the fifth refrigerant port (711) is communicated with a second end of the outdoor unit (30);
the second pipeline switching device (72) is rotatably arranged at the position of a sixth refrigerant port (712) of the second valve body (71), a seventh refrigerant port (721) and an eighth refrigerant port (722) are arranged on the second pipeline switching device (72), the seventh refrigerant port (721) is communicated with the second end of the first indoor unit (40), and the eighth refrigerant port (722) is communicated with the second end of the second indoor unit (50).
12. The air conditioning system of claim 11,
the air conditioning system is provided with a first indoor unit (40) conduction state, a refrigerant recovery state and a second indoor unit (50) conduction state;
in the on state of the first indoor unit (40), the second refrigerant port (612) is communicated with the third refrigerant port (621), and the second refrigerant port (612) is staggered and disconnected with the fourth refrigerant port (622) at the same time;
in the refrigerant recovery state, the second refrigerant port (612) is simultaneously staggered and disconnected with the third refrigerant port (621) and the fourth refrigerant port (622);
in the on state of the second indoor unit (50), the sixth refrigerant port (712) and the seventh refrigerant port (721) are communicated with each other, and the second refrigerant port (612) and the eighth refrigerant port (722) are offset and disconnected from each other.
13. A control method for controlling the air conditioning system according to any one of claims 8 to 12, characterized by comprising the steps of:
step S10: switching the air conditioning system to a refrigerant recovery mode, starting a compressor, and closing a first stop valve (60);
step S20: judging whether to recycle the refrigerant in the system to the outdoor unit (30);
step S30: and when the judgment result is yes, closing a second stop valve (70) and the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175215.6A CN110805952B (en) | 2019-11-26 | 2019-11-26 | Rotatable stop valve, air conditioning system and control method of air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175215.6A CN110805952B (en) | 2019-11-26 | 2019-11-26 | Rotatable stop valve, air conditioning system and control method of air conditioning system |
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| CN110805952A true CN110805952A (en) | 2020-02-18 |
| CN110805952B CN110805952B (en) | 2023-11-07 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003314715A (en) * | 2002-04-19 | 2003-11-06 | Fuji Koki Corp | Four-way change-over valve |
| CN1971111A (en) * | 2005-11-25 | 2007-05-30 | 浙江三花制冷集团有限公司 | Electric switch valve and refrigerating cycle for freezing refrigerator |
| CN102147125A (en) * | 2010-02-04 | 2011-08-10 | 珠海格力电器股份有限公司 | Air conditioner and processing method of refrigerant thereof |
| CN104061659A (en) * | 2014-07-10 | 2014-09-24 | 深圳麦克维尔空调有限公司 | Air conditioning system and coolant recycling method thereof |
| JP2015001243A (en) * | 2013-06-13 | 2015-01-05 | 日立アプライアンス株式会社 | Refrigerant switching valve and equipment with the same |
| CN104748295A (en) * | 2014-01-01 | 2015-07-01 | 广东美的制冷设备有限公司 | Air conditioner and recycling method for air conditioner refrigerant |
| CN105180511A (en) * | 2015-09-02 | 2015-12-23 | 广东美的制冷设备有限公司 | Split floor type air conditioner, refrigerant recycling method and refrigerant recycling device |
| CN105352042A (en) * | 2015-11-27 | 2016-02-24 | 深圳创维空调科技有限公司 | Air conditioner indoor unit and air conditioner |
| JP2017150676A (en) * | 2016-02-22 | 2017-08-31 | 株式会社日立空調Ｓｅ | Dehumidifying dryer |
| CN108286846A (en) * | 2017-12-29 | 2018-07-17 | 海信（山东）空调有限公司 | A kind of air conditioner coolant method for filling and air-conditioning |
| CN211041141U (en) * | 2019-11-26 | 2020-07-17 | 珠海格力电器股份有限公司 | Rotatable stop valve and air conditioning system |
-
2019
- 2019-11-26 CN CN201911175215.6A patent/CN110805952B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003314715A (en) * | 2002-04-19 | 2003-11-06 | Fuji Koki Corp | Four-way change-over valve |
| CN1971111A (en) * | 2005-11-25 | 2007-05-30 | 浙江三花制冷集团有限公司 | Electric switch valve and refrigerating cycle for freezing refrigerator |
| CN102147125A (en) * | 2010-02-04 | 2011-08-10 | 珠海格力电器股份有限公司 | Air conditioner and processing method of refrigerant thereof |
| JP2015001243A (en) * | 2013-06-13 | 2015-01-05 | 日立アプライアンス株式会社 | Refrigerant switching valve and equipment with the same |
| CN104748295A (en) * | 2014-01-01 | 2015-07-01 | 广东美的制冷设备有限公司 | Air conditioner and recycling method for air conditioner refrigerant |
| CN104061659A (en) * | 2014-07-10 | 2014-09-24 | 深圳麦克维尔空调有限公司 | Air conditioning system and coolant recycling method thereof |
| CN105180511A (en) * | 2015-09-02 | 2015-12-23 | 广东美的制冷设备有限公司 | Split floor type air conditioner, refrigerant recycling method and refrigerant recycling device |
| CN105352042A (en) * | 2015-11-27 | 2016-02-24 | 深圳创维空调科技有限公司 | Air conditioner indoor unit and air conditioner |
| JP2017150676A (en) * | 2016-02-22 | 2017-08-31 | 株式会社日立空調Ｓｅ | Dehumidifying dryer |
| CN108286846A (en) * | 2017-12-29 | 2018-07-17 | 海信（山东）空调有限公司 | A kind of air conditioner coolant method for filling and air-conditioning |
| CN211041141U (en) * | 2019-11-26 | 2020-07-17 | 珠海格力电器股份有限公司 | Rotatable stop valve and air conditioning system |
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