CN106482249A - Coolant self adaptation multi-gang air-conditioner off-premises station and its control method - Google Patents
Coolant self adaptation multi-gang air-conditioner off-premises station and its control method Download PDFInfo
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- CN106482249A CN106482249A CN201510548495.6A CN201510548495A CN106482249A CN 106482249 A CN106482249 A CN 106482249A CN 201510548495 A CN201510548495 A CN 201510548495A CN 106482249 A CN106482249 A CN 106482249A
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- Prior art keywords
- pressure
- controlling value
- electromagnetic valve
- supercooling
- conditioner
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention provides a kind of coolant self adaptation multi-gang air-conditioner off-premises station, including compressor, oil eliminator, gas-liquid separator and high pressure receiver, pressure regulation tube is provided with described high pressure receiver, described pressure regulation tube is connected with the outlet of described oil eliminator and the entrance of described gas-liquid separator respectively.Coolant self adaptation multi-gang air-conditioner off-premises station and its control method that the present invention provides, by pressure regulation tube road and two electromagnetic valves being added on high pressure receiver come the pressure in control system, and then in control system coolant amount, improve comfortableness and the reliability of system.
Description
Technical field
The invention belongs to air-conditioning equipment field, more particularly, to a kind of coolant self adaptation multi-gang air-conditioner outdoor
Machine and its control method.
Background technology
Because multi-connected machine has easy for installation a, advantage such as cost advantage is big, multi-connected machine using increasingly
Extensively.And in the installation and maintenance process of multi-connected machine, very crucial place during coolant injection, just
Substantially the data such as pipe range can be found during secondary installation, when waiting maintenance again, often can not find the pipe of reality
The data such as long, needs after sale by virtue of experience to carry out refrigerant super-addition it may appear that coolant quantity is forbidden, lead to be
System effect is poor.Prior art mostly is quantitative and adds, or by system and the isoparametric judgement of temperature
Carry out coolant automatic filling, but coolant Self Adaptive Control cannot be realized.
Content of the invention
Therefore, the present invention provide a kind of can be full according to high-pressure storage tank inlet temperature and system coolant
Automatically to adapt to due to the different coolant that cause such as interior machine load variations or outdoor temperature change with temperature
The coolant self adaptation multi-gang air-conditioner off-premises station of demand and its control method.
A kind of coolant self adaptation multi-gang air-conditioner off-premises station, divides including compressor, oil eliminator, gas-liquid
It is provided with pressure regulation tube on device and high pressure receiver, described high pressure receiver, described pressure is adjusted
Pipe is connected with the outlet of described oil eliminator and the entrance of described gas-liquid separator respectively.
Described pressure regulation tube includes pressure inlet pipe and pressure outlet pipe, described pressure inlet pipe and described oil
From device outlet, described pressure outlet pipe is connected with described gas-liquid separator entrance.
It is provided with the first electromagnetic valve between the outlet of described pressure regulation tube and described oil eliminator.
It is provided with the second electromagnetic valve between described pressure regulation tube and described gas-liquid separator entrance.
A kind of control method using above-mentioned coolant self adaptation multi-gang air-conditioner off-premises station, including：
Initialization system supercooling controlling value；
The saturation temperature of coolant used by computing system；
Measure in real time the temperature of described high-pressure storage tank porch, and calculate described saturation temperature with described
The difference of temperature；
Relatively described difference and described supercooling controlling value；
If described difference approximates described supercooling controlling value, close described first electromagnetic valve and described
Second electromagnetic valve；
If described difference is more than described supercooling controlling value, open described second electromagnetic valve, close institute
State the first electromagnetic valve, until after described difference is equal to described supercooling controlling value, closing described second electricity
Magnet valve；
If described difference is less than described supercooling controlling value, open described first electromagnetic valve, close institute
State the second electromagnetic valve until described difference, equal to after described supercooling controlling value, closes described first electromagnetism
Valve.
In initialization system supercooling controlling value, also include：
Set the tolerance of described system supercooling controlling value.
Described difference and described supercooling controlling value are added and subtracted described tolerance and are compared.
After the tolerance setting described system supercooling controlling value, described difference and described supercooling
Controlling value is added and subtracted described tolerance and is compared.
A kind of control method using above-mentioned coolant self adaptation multi-gang air-conditioner off-premises station, its feature exists
In：Including：
Heating mode；
Initialization system pressure control values；
Initialization system electric expansion valve and indoor set number relation, and set the control of described electric expansion valve
Aperture processed；
Initialization system indoor set start accounting；
Measurement indoor set start quantity, is calculated actual start accounting in real time；
Measure the outlet pressure in described high pressure receiver exit, relatively described outlet pressure and institute in real time
State system pressure controlling value and actual electronic expansion valve opening and described control aperture；
If described outlet pressure is more than described system pressure controlling value, and the reality of described electric expansion valve
Aperture is more than described control aperture, then more described actual start accounting and system indoor set start accounting；
If described actual start accounting is more than system indoor set start accounting, open described second electromagnetism
Valve, cuts out described first electromagnetic valve；
If described actual start accounting is not more than described system indoor set and starts shooting accounting, keep described the
One electromagnetic valve and described second closed electromagnetic valve；
If described outlet pressure is not more than described system pressure controlling value, open described first electromagnetic valve,
Close described second electromagnetic valve, until described outlet pressure is more than described system pressure controlling value.
Coolant self adaptation multi-gang air-conditioner off-premises station and its control method that the present invention provides, by height
Add, on pressure liquid reservoir, the pressure that pressure regulation tube road and two electromagnetic valves come in control system, and then control
The amount of coolant in system processed, improves comfortableness and the reliability of system.
Brief description
Fig. 1 is the structural representation of the coolant self adaptation multi-gang air-conditioner off-premises station that the present invention provides；
Specific embodiment
Below by specific embodiment and combine accompanying drawing to describe the present invention in detail.
Coolant self adaptation multi-gang air-conditioner off-premises station as shown in Figure 1, including compressor 1, oil eliminator
2nd, gas-liquid separator 3 and high pressure receiver 4 it is characterised in that：Arrange on described high pressure receiver 4
There is pressure regulation tube 41, described pressure regulation tube 41 outlet and the institute with described oil eliminator 2 respectively
State the entrance connection of gas-liquid separator 3.
Described pressure regulation tube 41 includes pressure inlet pipe 411 and pressure outlet pipe 412, described pressure inlet pipe
411 with described oil eliminator 2 outlet, described pressure outlet pipe 412 and described gas-liquid separator 3
Entrance connects.
It is provided with the first electromagnetic valve between described pressure regulation tube 41 and the outlet of described oil eliminator 2.
It is provided with the second electromagnetic valve between described pressure regulation tube 41 and described gas-liquid separator 3 entrance.
A kind of control method using above-mentioned coolant self adaptation multi-gang air-conditioner off-premises station, including：
Initialization system supercooling controlling value；
The saturation temperature of coolant used by computing system；
Measure in real time the temperature of described high-pressure storage tank porch, and calculate described saturation temperature with described
The difference of temperature；
Relatively described difference and described supercooling controlling value；
If described difference approximates described supercooling controlling value, system refrigerant circulation is normal, need not enter
Row controls, then close described first electromagnetic valve and described second electromagnetic valve；
If described difference is more than described supercooling controlling value it is believed that system refrigerant circulation is more, beat
Drive described second electromagnetic valve, close described first electromagnetic valve, until described difference is equal to described supercooling
After controlling value, closing described second electromagnetic valve, reducing the pressure in receiver, thus realizing receiver
In many storage coolant, with the coolant in minimizing system；
If described difference is less than described supercooling controlling value it is believed that system refrigerant circulation is very few, beat
Drive described first electromagnetic valve, close described second electromagnetic valve, until described difference is equal to described supercooling
After controlling value, close the pressure that described first electromagnetic valve improves in receiver, thus realizing in receiver
Coolant is discharged, with the coolant in increase system.
In initialization system supercooling controlling value, also include：
Set the tolerance of described system supercooling controlling value.
Described difference and described supercooling controlling value are added and subtracted described tolerance and are compared.
After the tolerance setting described system supercooling controlling value, described difference and described supercooling
Controlling value is added and subtracted described tolerance and is compared.
Refrigeration is different with the inlet temperature of the described high pressure receiver heating, and control method is identical.
A kind of control method using above-mentioned coolant self adaptation multi-gang air-conditioner off-premises station, including：
Heating mode；
Initialization system pressure control values；
Initialization system electric expansion valve and indoor set number relation, and set the control of described electric expansion valve
Aperture processed；
Initialization system indoor set start accounting；
Measurement indoor set start quantity, is calculated actual start accounting in real time；
Measure in real time the outlet pressure in described high pressure receiver 4 exit, relatively described outlet pressure and
Described system pressure controlling value and actual electronic expansion valve opening and described control aperture；
If described outlet pressure is more than described system pressure controlling value, and the reality of described electric expansion valve
Aperture is more than described control aperture, then more described actual start accounting and system indoor set start accounting；
If described actual start accounting is more than system indoor set start accounting it is believed that system refrigerant circulation
Excessively, then open described second electromagnetic valve, close described first electromagnetic valve, reduce the pressure in receiver
Power, thus realize many storage coolant in receiver, with the coolant in minimizing system；
If described actual start accounting is not more than described system indoor set and starts shooting accounting, keep described the
One electromagnetic valve and described second closed electromagnetic valve, it is believed that system refrigerant circulation is normal, need not be controlled
System；
If described outlet pressure is not more than described system pressure controlling value it is believed that system refrigerant circulation mistake
Few, then open described first electromagnetic valve, close described second electromagnetic valve, improve the pressure in receiver,
Thus realize coolant in receiver being discharged, with the coolant in increase system, until described outlet pressure
More than described system pressure controlling value.
Coolant self adaptation multi-gang air-conditioner off-premises station and its control method that the present invention provides, by height
Add, on pressure liquid reservoir 4, the pressure that pressure regulation tube 41 road and two electromagnetic valves come in control system, enter
And in control system coolant amount, improve comfortableness and the reliability of system.
It is only the preferred embodiment of the present invention by the above it is noted that for the art
Those of ordinary skill for, under the premise without departing from the principles of the invention, some changing can also be made
Enter and retouch, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of coolant self adaptation multi-gang air-conditioner off-premises station, including compressor, oil eliminator, gas-liquid
Separator and high pressure receiver it is characterised in that：It is provided with pressure regulation tube on described high pressure receiver,
Described pressure regulation tube is connected with the outlet of described oil eliminator and the entrance of described gas-liquid separator respectively
Logical.
2. coolant self adaptation multi-gang air-conditioner off-premises station according to claim 1 it is characterised in that：
Described pressure regulation tube includes pressure inlet pipe and pressure outlet pipe, described pressure inlet pipe and described oil eliminator
Outlet, described pressure outlet pipe is connected with described gas-liquid separator entrance.
3. coolant self adaptation multi-gang air-conditioner off-premises station according to claim 1 it is characterised in that：
It is provided with the first electromagnetic valve between the outlet of described pressure regulation tube and described oil eliminator.
4. coolant self adaptation multi-gang air-conditioner off-premises station according to claim 1 it is characterised in that：
It is provided with the second electromagnetic valve between described pressure regulation tube and described gas-liquid separator entrance.
5. the control of the coolant self adaptation multi-gang air-conditioner off-premises station described in a kind of utilization claim 1 to 4
Method processed it is characterised in that：Including：
Initialization system supercooling controlling value；
The saturation temperature of coolant used by computing system；
Measure in real time the temperature of described high-pressure storage tank porch, and calculate described saturation temperature with described
The difference of temperature；
Relatively described difference and described supercooling controlling value；
If described difference approximates described supercooling controlling value, close described first electromagnetic valve and described
Second electromagnetic valve；
If described difference is more than described supercooling controlling value, open described second electromagnetic valve, close institute
State the first electromagnetic valve, until after described difference is equal to described supercooling controlling value, closing described second electricity
Magnet valve；
If described difference is less than described supercooling controlling value, open described first electromagnetic valve, close institute
State the second electromagnetic valve until described difference, equal to after described supercooling controlling value, closes described first electromagnetism
Valve.
6. control method according to claim 5 it is characterised in that：In initialization system supercooling
During controlling value, also include：
Set the tolerance of described system supercooling controlling value.
Described difference and described supercooling controlling value are added and subtracted described tolerance and are compared.
7. control method according to claim 6 it is characterised in that：Setting described system mistake
After the tolerance of cooling controlling value, described difference is described with described supercooling controlling value plus-minus to be allowed partially
Difference is compared.
8. the control of the coolant self adaptation multi-gang air-conditioner off-premises station described in a kind of utilization claim 1 to 4
Method processed it is characterised in that：Including：
Heating mode；
Initialization system pressure control values；
Initialization system electric expansion valve and indoor set number relation, and set the control of described electric expansion valve
Aperture processed；
Initialization system indoor set start accounting；
Measurement indoor set start quantity, is calculated actual start accounting in real time；
Measure the outlet pressure in described high pressure receiver exit, relatively described outlet pressure and institute in real time
State system pressure controlling value and actual electronic expansion valve opening and described control aperture；
If described outlet pressure is more than described system pressure controlling value, and the reality of described electric expansion valve
Aperture is more than described control aperture, then more described actual start accounting and system indoor set start accounting；
If described actual start accounting is more than system indoor set start accounting, open described second electromagnetism
Valve, cuts out described first electromagnetic valve；
If described actual start accounting is not more than described system indoor set and starts shooting accounting, keep described the
One electromagnetic valve and described second closed electromagnetic valve；
If described outlet pressure is not more than described system pressure controlling value, open described first electromagnetic valve,
Close described second electromagnetic valve it is known that described outlet pressure is more than described system pressure controlling value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548495.6A CN106482249B (en) | 2015-08-31 | 2015-08-31 | The adaptive multi-gang air-conditioner outdoor unit of refrigerant and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548495.6A CN106482249B (en) | 2015-08-31 | 2015-08-31 | The adaptive multi-gang air-conditioner outdoor unit of refrigerant and its control method |
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| Publication Number | Publication Date |
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| CN106482249A true CN106482249A (en) | 2017-03-08 |
| CN106482249B CN106482249B (en) | 2019-07-05 |
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| CN201510548495.6A Active CN106482249B (en) | 2015-08-31 | 2015-08-31 | The adaptive multi-gang air-conditioner outdoor unit of refrigerant and its control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111023271A (en) * | 2019-12-31 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Adjusting device and system of multi-split air conditioner refrigerant, control method of system and air conditioner |
| CN113551390A (en) * | 2020-04-14 | 2021-10-26 | 青岛海尔空调器有限总公司 | Oil return control method for compressor of air conditioner |
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| CN106482249B (en) | 2019-07-05 |
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