CN104949402B - Refrigerant regulator, refrigerant regulating method and air conditioner - Google Patents
Refrigerant regulator, refrigerant regulating method and air conditioner Download PDFInfo
- Publication number
- CN104949402B CN104949402B CN201410123105.6A CN201410123105A CN104949402B CN 104949402 B CN104949402 B CN 104949402B CN 201410123105 A CN201410123105 A CN 201410123105A CN 104949402 B CN104949402 B CN 104949402B
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- Prior art keywords
- refrigerant
- pipe
- regulating
- valve
- liquid storage
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 165
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 title claims description 65
- 239000007788 liquid Substances 0.000 claims abstract description 112
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- 238000004378 air conditioning Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
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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
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention provides a refrigerant regulator, comprising: the liquid storage tank, be located the refrigerant feed liquor pipe on liquid storage tank upper portion and be located the refrigerant drain pipe of liquid storage tank bottom, be provided with the second control valve on the refrigerant drain pipe, be provided with first control valve and first control tube on the refrigerant feed liquor pipe, first control tube and system high pressure intercommunication, be provided with first governing valve on the first governing tube, adjust through the control the break-make of first governing tube the inside pressure of liquid storage tank. This refrigerant regulator is through setting up the control valve on refrigerant is advanced, the drain pipe, realizes the automatic adjustment control refrigerant business turn over reservoir, through setting up first control tube, has further improved the speed and the reliability that the refrigerant was adjusted. The invention also provides a refrigerant adjusting method and an air conditioner.
Description
Technical Field
The invention relates to the field of refrigeration, in particular to a refrigerant regulator and a refrigerant regulating method, and also relates to an air conditioner.
Background
When the refrigerating air conditioning unit operates in different modes, particularly a large-scale refrigerating system, the requirements on refrigerants are different; the former system, only a reservoir connects behind outdoor heat exchanger, and when the unit operation is different modes, when the unit needed the refrigerant different, the reservoir can only be passive the excessive refrigerant in the collection system, and the refrigerant just passive storage is in the reservoir, probably is taken away by the operating system at any time, and the refrigerant of taking away can form unnecessary load, causes unnecessary consumption can even can exert an influence to the reliability of whole system.
Disclosure of Invention
The invention aims to provide a refrigerant regulator which can automatically regulate the refrigerant quantity, realize the intelligent control of system operation refrigerants and ensure the reliability of system operation.
The invention provides a refrigerant regulator, comprising: the liquid storage tank, be located the refrigerant feed liquor pipe on liquid storage tank upper portion and be located the refrigerant drain pipe of liquid storage tank bottom, be provided with the second control valve on the refrigerant drain pipe, be provided with first control valve and first control tube on the refrigerant feed liquor pipe, first control tube and system high pressure intercommunication, be provided with first governing valve on the first governing tube, adjust through the control the break-make of first governing tube the inside pressure of liquid storage tank.
The liquid storage tank is characterized by further comprising a second adjusting pipe, one end of the second adjusting pipe is arranged on the upper portion of the liquid storage tank, the other end of the second adjusting pipe is communicated with the refrigerant liquid outlet pipe, a second adjusting valve is arranged on the second adjusting pipe, and the pressure inside the liquid storage tank is adjusted by controlling the on-off of the second adjusting pipe.
Furthermore, a throttling device is further arranged on the first adjusting pipe.
Furthermore, a throttling device is further arranged on the second adjusting pipe.
Further, the first regulating valve and the second regulating valve are electromagnetic valves, and the throttling device is a capillary tube or an electronic expansion valve.
Further, the first regulating valve and the second regulating valve are electronic expansion valves.
Further, the throttling device is located at the upstream of the flowing direction of the refrigerant, and the first regulating valve and the second regulating valve are located at the downstream of the flowing direction of the refrigerant.
Furthermore, a check valve is arranged on the refrigerant liquid inlet pipe in series with the first control valve and is arranged at one end, close to the liquid storage tank, of the refrigerant liquid inlet pipe.
Furthermore, an unloading valve is further arranged on the refrigerant liquid inlet pipe, and the unloading valve is connected with the first control valve and the one-way valve in parallel.
Furthermore, a check valve is arranged on one side of the refrigerant liquid outlet pipe, which is far away from the connection point of the second adjusting pipe and the refrigerant liquid outlet pipe along the flowing direction of the refrigerant.
The invention also provides a refrigerant adjusting method of the refrigerant adjuster, which comprises the following steps:
when the machine set carries out refrigerant regulation and the amount of system refrigerants needs to be reduced, the step S1 is carried out, wherein a first control valve on the refrigerant liquid inlet pipe is opened, a second control valve on the refrigerant liquid outlet pipe is closed, and medium-pressure refrigerants enter a liquid storage device through the refrigerant liquid inlet pipe;
and when the quantity of the system refrigerants needs to be increased, the step S2 is performed, wherein a first control valve on the refrigerant liquid inlet pipe is closed, a second control valve on the refrigerant liquid outlet pipe is opened, and the refrigerants in the liquid storage device enter the compressor through the refrigerant liquid outlet pipe.
Further, step S1 further includes: and opening a second regulating valve on the second regulating pipe to communicate the liquid reservoir and the low-pressure end, and reducing the pressure in the liquid reservoir.
Further, step S2 further includes: and opening a first regulating valve on the first regulating pipe to communicate the liquid reservoir and the high-pressure end and increase the pressure in the liquid reservoir.
The invention also provides an air conditioner which is provided with the refrigerant regulator, the refrigerant liquid inlet pipe is communicated with the medium-pressure pipeline behind the condenser of the system, the first regulating pipe is communicated with the high-pressure side of the system, and the liquid outlet pipe is communicated with the low-pressure side of the system.
According to the refrigerant regulator, the refrigerant regulating method and the air conditioner, the control valves are arranged on the refrigerant inlet pipe and the refrigerant outlet pipe, so that the refrigerant is automatically regulated and controlled to enter and exit the liquid storage device, the pressure inside the liquid storage device is regulated by arranging the first regulating pipe and the second regulating pipe, the refrigerant is automatically regulated, the speed and the reliability of refrigerant regulation are further improved, and the energy efficiency of an air conditioning system is improved.
Drawings
FIG. 1 is a schematic view of a refrigerant regulator according to the present invention;
wherein,
10 a reservoir; 20 refrigerant inlet pipe; 30 refrigerant outlet pipes; 40 a first regulating tube; 50 a second regulating tube; 21 a first control valve; 31 a second control valve; 41 a first regulating valve; 51 a second regulating valve; 42. 52 a capillary tube; 23. 33 a one-way valve; 24 unloading the valve.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1, the refrigerant regulator provided by the present invention includes: the liquid storage tank comprises a liquid storage tank 10, a refrigerant liquid inlet pipe 20 located on the upper portion of the liquid storage tank and a refrigerant liquid outlet pipe 30 located at the bottom of the liquid storage tank, wherein a second control valve 31 is arranged on the refrigerant liquid outlet pipe 30, a first control valve 21 and a first adjusting pipe 40 are arranged on the refrigerant liquid inlet pipe 20, the first adjusting pipe 40 is communicated with a system at a high pressure, a first adjusting valve 41 is arranged on the first adjusting pipe 40, and the pressure inside the liquid storage tank 10 is adjusted by controlling the on-off of the first adjusting pipe 40. This refrigerant regulator is through setting up the control valve on refrigerant is advanced, the drain pipe, realizes the business turn over reservoir of automatically regulated control refrigerant, through setting up first control tube, has further improved the speed and the reliability that the refrigerant was adjusted, improves automatically regulated's effect.
Further, the refrigerant regulator further comprises a second adjusting pipe 50, one end of the second adjusting pipe 50 is arranged at the upper part of the liquid storage tank 10, the other end of the second adjusting pipe 50 is communicated with the refrigerant liquid outlet pipe 30, a second adjusting valve 51 is arranged on the second adjusting pipe 50, and the opening and closing of the second adjusting valve 51 are controlled to control the on-off of the second adjusting pipe 50, so that the amount of refrigerant gas in the liquid storage tank 10 is adjusted, the pressure in the liquid storage tank 10 is adjusted, the speed and the reliability of refrigerant adjustment are further improved, and the automatic adjusting effect is improved.
The first regulating valve 41 and the second regulating valve 51 may be solenoid valves or electronic expansion valves. When the first and second regulating valves 41 and 51 are solenoid valves, the first and second regulating pipes 40 and 50 are further provided with throttling devices, which may be capillary tubes or electronic expansion valves. Preferably capillary tubes, as shown in fig. 1, the first and second conditioning tubes 40 and 50 have capillary tubes 42 and 52, respectively, disposed thereon. Set up like this, carry out the throttle decompression before high-pressure gas gets into reservoir 10 through first regulating pipe 40, carry out the throttle decompression before the gaseous refrigerant in reservoir 10 gets into the low pressure end of system through second regulating pipe 50, prevent the noise problem that pressure difference brought.
Preferably, the throttling devices of the first and second regulating pipes 40 and 50 are located upstream in the flow direction of the refrigerant, and the first and second regulating valves 41 and 51 are located downstream in the flow direction of the refrigerant. That is, before entering the reservoir 10, the high-pressure gas in the first regulating pipe 40 is throttled and depressurized by the throttling device, and then enters the reservoir through the first regulating valve 41; the gaseous refrigerant inside the accumulator 10 is throttled and depressurized by the throttling device, and then enters the low-pressure end through the second regulating valve 51.
Furthermore, a check valve 23 is arranged on the refrigerant liquid inlet pipe 20 in series with the first control valve 21, the check valve 23 is arranged at one end, close to the liquid storage tank, of the refrigerant liquid inlet pipe 20, and the check valve 23 only allows the refrigerant to flow from the refrigerant liquid inlet pipe to the liquid storage tank, so that the refrigerant is prevented from flowing back into the system from the refrigerant liquid inlet pipe when the amount of the refrigerant in the liquid storage tank is too large and the pressure of the refrigerant in the liquid storage tank is higher than the pressure of the refrigerant liquid inlet pipe.
An unloading valve 24 is further arranged on the refrigerant inlet pipe 20, the unloading valve 24 is connected with the first control valve 21 and the one-way valve 23 in parallel, one end of the unloading valve is connected between the one-way valve 23 and the liquid storage tank 10, and the other end of the unloading valve is connected with one end of the first control valve 21, which is far away from the one-way valve 23. By arranging the unloading valve, the pressure in the liquid storage tank is prevented from being overhigh, and the pressure in the liquid storage tank is unloaded.
Furthermore, a check valve 33 is arranged on one side of the refrigerant liquid outlet pipe 30, which is far away from the connection point of the second adjusting pipe 50 and the refrigerant liquid outlet pipe along the refrigerant flowing direction, and the refrigerant is only allowed to flow to the low-pressure side from the liquid storage tank by arranging the check valve 33, so that the refrigerant is prevented from flowing backwards into the liquid storage tank through a pipeline when the machine is stopped.
According to the refrigerant regulator provided by the invention, the control valves are arranged on the refrigerant inlet pipe and the refrigerant outlet pipe, so that the refrigerant can be automatically regulated and controlled to enter and exit the liquid accumulator, the pressure in the liquid accumulator is regulated by arranging the first regulating pipe and the second regulating pipe, the speed and the reliability of refrigerant regulation are further improved, and the automatic regulating effect is improved.
The invention also discloses a refrigerant adjusting method of the refrigerant adjuster, which comprises the following steps:
when the machine set carries out refrigerant regulation and the amount of system refrigerants needs to be reduced, the step S1 is carried out, wherein a first control valve on the refrigerant liquid inlet pipe is opened, a second control valve on the refrigerant liquid outlet pipe is closed, and medium-pressure refrigerants enter a liquid storage device through the refrigerant liquid inlet pipe;
further, the above control step S1 further includes: and opening a second regulating valve on the second regulating pipe to communicate the liquid storage device and the low-pressure end, reducing the pressure in the liquid storage device, increasing the pressure difference between the liquid storage device and the end of the refrigerant liquid inlet pipe, enabling the refrigerant to quickly and automatically enter the liquid storage device, and improving the speed and reliability of refrigerant regulation.
And when the quantity of the system refrigerants needs to be increased, the step S2 is performed, wherein a first control valve on the refrigerant liquid inlet pipe is closed, a second control valve on the refrigerant liquid outlet pipe is opened, and the refrigerants in the liquid storage device enter the compressor through the refrigerant liquid outlet pipe.
Further, the above control step S2 further includes: the first regulating valve on the first regulating pipe is opened to communicate the liquid storage device and the high-pressure end, so that the pressure in the liquid storage device is increased, the pressure difference between the liquid storage device and the refrigerant liquid outlet pipe end is increased, the refrigerant is quickly and automatically discharged out of the liquid storage device, and the speed and the reliability of refrigerant regulation are improved.
According to the refrigerant adjusting method provided by the invention, the automatic and reliable control of the refrigerant is realized by reasonably controlling the on-off of the refrigerant liquid inlet pipe, the refrigerant liquid outlet pipe, the first adjusting pipe and the second adjusting pipe according to different requirements of the system on the quantity of the circulating refrigerant.
The invention also discloses an air conditioner which is provided with the refrigerant regulator, the refrigerant liquid inlet pipe is communicated with a medium-pressure pipeline behind the condenser of the air conditioning system, the first regulating pipe is communicated with the high-pressure side of the system, and the liquid outlet pipe is communicated with the low-pressure side of the system. The air conditioner realizes automatic refrigerant regulation, and improves the reliability and the energy efficiency of the system.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A refrigerant conditioner, comprising: the pressure regulating device comprises a liquid storage tank, a refrigerant liquid inlet pipe positioned at the upper part of the liquid storage tank and a refrigerant liquid outlet pipe positioned at the bottom of the liquid storage tank, and is characterized in that a second control valve is arranged on the refrigerant liquid outlet pipe, a first control valve and a first regulating pipe are arranged on the refrigerant liquid inlet pipe, the first regulating pipe is communicated with a system at high pressure, a first regulating valve is arranged on the first regulating pipe, and the pressure in the liquid storage tank is regulated by controlling the on-off of the first regulating pipe; the liquid storage tank is characterized by further comprising a second adjusting pipe, one end of the second adjusting pipe is arranged on the upper portion of the liquid storage tank, the other end of the second adjusting pipe is communicated with the refrigerant liquid outlet pipe, a second adjusting valve is arranged on the second adjusting pipe, and the pressure inside the liquid storage tank is adjusted by controlling the on-off of the second adjusting pipe.
2. The refrigerant regulator as claimed in claim 1, wherein the first regulating tube is further provided with a throttling device.
3. The refrigerant regulator as claimed in claim 1, wherein the second regulating tube is further provided with a throttling device.
4. The refrigerant regulator according to claim 2 or 3, wherein the first regulating valve and the second regulating valve are solenoid valves, and the throttling device is a capillary tube or an electronic expansion valve.
5. The refrigerant regulator of claim 1, wherein the first and second regulator valves are electronic expansion valves.
6. The refrigerant regulator of claim 4, wherein the throttling device is located upstream in a refrigerant flow direction, and the first and second regulating valves are located downstream in the refrigerant flow direction.
7. The refrigerant regulator according to any one of claims 1 to 3, wherein a check valve is provided in the refrigerant inlet pipe in series with the first control valve, the check valve being provided at an end of the refrigerant inlet pipe adjacent to the liquid reservoir.
8. The refrigerant regulator as claimed in claim 6, wherein an unloading valve is further disposed on the refrigerant inlet pipe, and the unloading valve is disposed in parallel with the first control valve and the check valve.
9. The refrigerant regulator according to any one of claims 1, 3, 5, or 8, wherein a check valve is disposed on a side of the refrigerant outlet pipe away from a connection point of the second regulating pipe and the refrigerant outlet pipe in a refrigerant flowing direction.
10. A refrigerant adjusting method of a refrigerant adjuster according to any one of claims 1 to 9, comprising the steps of:
when the machine set carries out refrigerant regulation and the amount of system refrigerants needs to be reduced, the step S1 is carried out, wherein a first control valve on the refrigerant liquid inlet pipe is opened, a second control valve on the refrigerant liquid outlet pipe is closed, and medium-pressure refrigerants enter a liquid storage device through the refrigerant liquid inlet pipe;
when the quantity of the system refrigerants needs to be increased, the step S2 is carried out, wherein a first control valve on the refrigerant liquid inlet pipe is closed, a second control valve on the refrigerant liquid outlet pipe is opened, and the refrigerants in the liquid storage device enter the compressor through the refrigerant liquid outlet pipe;
wherein, step S1 further includes: and opening a second regulating valve on the second regulating pipe to communicate the liquid reservoir and the low-pressure end, and reducing the pressure in the liquid reservoir.
11. The refrigerant conditioning method according to claim 10, wherein step S2 further includes: and opening a first regulating valve on the first regulating pipe to communicate the liquid reservoir and the high-pressure end and increase the pressure in the liquid reservoir.
12. An air conditioner, characterized in that, the refrigerant regulator of any one of claims 1 to 9 is provided, the refrigerant inlet pipe is communicated with a medium-pressure pipeline behind a condenser of the system, the first regulating pipe is communicated with the high-pressure side of the system, and the outlet pipe is communicated with the low-pressure side of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123105.6A CN104949402B (en) | 2014-03-28 | 2014-03-28 | Refrigerant regulator, refrigerant regulating method and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123105.6A CN104949402B (en) | 2014-03-28 | 2014-03-28 | Refrigerant regulator, refrigerant regulating method and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104949402A CN104949402A (en) | 2015-09-30 |
| CN104949402B true CN104949402B (en) | 2019-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410123105.6A Active CN104949402B (en) | 2014-03-28 | 2014-03-28 | Refrigerant regulator, refrigerant regulating method and air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN104949402B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4151926A4 (en) * | 2020-05-11 | 2023-06-14 | Mitsubishi Electric Corporation | Refrigeration cycle device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482249B (en) * | 2015-08-31 | 2019-07-05 | 青岛海尔空调电子有限公司 | The adaptive multi-gang air-conditioner outdoor unit of refrigerant and its control method |
| CN105928268B (en) * | 2016-07-13 | 2018-05-29 | 上海海洋大学 | The control method and control system of dual-phase jet pump feed flow in a kind of refrigeration system |
| CN107178872A (en) * | 2017-05-18 | 2017-09-19 | 珠海格力电器股份有限公司 | Refrigerant adjusting method and device |
| CN108709345A (en) * | 2018-06-13 | 2018-10-26 | 苏州逸新和电子有限公司 | A kind of safety vertical liquid storage device |
| CN110529966A (en) * | 2019-09-09 | 2019-12-03 | 宁波奥克斯电气股份有限公司 | A kind of change coolant quantity air-conditioning system and its control method |
| CN110762647A (en) * | 2019-10-16 | 2020-02-07 | 珠海格力电器股份有限公司 | Central air-conditioning system and control method thereof |
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| CN102042724B (en) * | 2009-10-13 | 2012-07-04 | 珠海格力电器股份有限公司 | Refrigerant control component, air-conditioning refrigeration system and refrigerant circulation control method |
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| JP2000179957A (en) * | 1998-12-17 | 2000-06-30 | Hitachi Ltd | Air conditioner |
| CN1862152A (en) * | 2005-05-12 | 2006-11-15 | 乐金电子(天津)电器有限公司 | Cold medium flow regulator for high-capacity air conditioning system |
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| CN104949402A (en) | 2015-09-30 |
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