CN109631424A - Coolant distributor, three-pipe heating and reclaiming air-conditioning system and its control method - Google Patents
Coolant distributor, three-pipe heating and reclaiming air-conditioning system and its control method Download PDFInfo
- Publication number
- CN109631424A CN109631424A CN201811489314.7A CN201811489314A CN109631424A CN 109631424 A CN109631424 A CN 109631424A CN 201811489314 A CN201811489314 A CN 201811489314A CN 109631424 A CN109631424 A CN 109631424A
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- China
- Prior art keywords
- pressure gas
- valve
- gas circuit
- heating
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
Abstract
The present invention provides a kind of coolant distributor, three-pipe heating and reclaiming air-conditioning system and its control method.The coolant distributor includes the first high temperature and pressure gas circuit, the first low-temp low-pressure gas circuit and the first fluid path, first high temperature and pressure gas circuit includes the first heating branch with main heating valve and the second heating branch with auxiliary heating valve, restricting element, auxiliary heating valve and restricting element are series in the second heating branch, and first heats branch and the second heating branch circuit parallel connection in the first high temperature and pressure gas circuit, the first low-temp low-pressure gas circuit includes having the first refrigeration branch of main refrigeration valve.A kind of coolant distributor, three-pipe heating and reclaiming air-conditioning system and its control method according to the present invention, it can be when air-conditioning system freezes and is switched to heating mode, the refrigerant pressure difference on solenoid valve is effectively reduced, switching noise and the vibration for reducing coolant distributor, improve the running stability and working performance of air-conditioning system.
Description
Technical field
The invention belongs to air-conditioning technique fields, and in particular to a kind of coolant distributor, three-pipe heating recycle air-conditioning system
System and its control method.
Background technique
Recuperation of heat unit generally uses dedicated recuperation of heat coolant distributor at present, is made of several solenoid valve blocks etc., leads to
Cross control solenoid valve on-off change refrigerant flow path, thus change refrigerant flow direction, reach realization same set of air-conditioning system not
The purpose that can freeze and heat simultaneously with interior machine.The usual outer machine system of such recuperation of heat uses the connection mode of three control, but
The low temperature valve and thermal valve of coolant distributor cause huge noise and vibration because of the reason of refrigerant pressure difference in handoff procedure, or even go out
Problem is now complained after sale.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that providing a kind of coolant distributor, three-pipe heating recycling air-conditioning system
The refrigerant pressure difference on solenoid valve can be effectively reduced when air-conditioning system freezes and is switched to heating mode in system and its control method,
Switching noise and the vibration for reducing coolant distributor, improve the running stability and working performance of air-conditioning system.
To solve the above-mentioned problems, the present invention provides a kind of coolant distributor, including the first high temperature and pressure gas circuit, first low
It is first that one end of warm low pressure gas circuit and the first fluid path, one end of the first high temperature and pressure gas circuit and the first low-temp low-pressure gas circuit, which is summarized,
Tracheae, the first fluid path include tool for connecting machine unit and the outer machine unit of recuperation of heat, the first high temperature and pressure gas circuit in perforation first
Have it is main heating valve first heating branch and with auxiliary heating valve, restricting element second heating branch, auxiliary heating valve with
Restricting element is series in the second heating branch, and the first heating branch and the second heating branch circuit parallel connection are in the first high temperature and pressure gas
Lu Zhong, the first low-temp low-pressure gas circuit include having the first refrigeration branch of main refrigeration valve.
Preferably, the first low-temp low-pressure gas circuit further includes having the second refrigeration branch of assisted refrigeration valve, restricting element, auxiliary
Refrigeration valve and restricting element is helped to be series in the second refrigeration branch, and the first refrigeration branch and the second refrigeration branch are parallel to first
In low-temp low-pressure gas circuit.
Preferably, coolant distributor further includes the second high temperature and pressure gas circuit, the second low-temp low-pressure gas circuit and the second fluid path, and
One end of one end of two high temperature and pressure gas circuits and the second low-temp low-pressure gas circuit is summarized for the second tracheae, and the second fluid path is passed through for connecting
Machine unit and the outer machine unit of recuperation of heat in logical second.
The present invention also provides a kind of three-pipe heating and reclaiming air-conditioning systems, including above-mentioned coolant distributor.
The present invention also provides a kind of control methods of three-pipe heating and reclaiming air-conditioning system, for controlling above-mentioned three-pipe heating
Air-conditioning system is recycled, to realize switching of the air-conditioning system between refrigeration mode and heating mode.
Preferably, the conducting of main heating valve, the truncation of auxiliary heating valve in the first high temperature and pressure gas circuit are controlled, control first is low
Main refrigeration valve, the truncation of assisted refrigeration valve in warm low pressure gas circuit, realize the heating mode of machine unit in first.
Preferably, after the heating mode of machine unit runs the first preset time in first, the first high temperature and pressure gas is controlled
Main heating valve, auxiliary heating valve in road are truncated, the main refrigeration valve truncation in the first low-temp low-pressure gas circuit of control, assisted refrigeration valve
The refrigeration mode of machine unit in first is realized in conducting.
Preferably, after the refrigeration mode of machine unit runs the second preset time in first, the first low-temp low-pressure gas is controlled
The conducting of main refrigeration valve, the truncation of assisted refrigeration valve in road.
Preferably, the main heating valve in the first high temperature and pressure gas circuit of control, the truncation of auxiliary heating valve, the first low temperature of control are low
The conducting of main refrigeration valve, the truncation of assisted refrigeration valve in pressure gas channel, realize the refrigeration mode of machine unit in first.
Preferably, after machine unit refrigeration mode runs the first preset time in first, the first low-temp low-pressure gas circuit is controlled
In main refrigeration valve, the truncation of assisted refrigeration valve, control that main heating valve truncation in the first high temperature and pressure gas circuit, auxiliary heating valve leads
It is logical, realize the heating mode of machine unit in first.
Preferably, after the heating mode of machine unit runs the second preset time in first, the first high temperature and pressure gas is controlled
The conducting of main heating valve, the truncation of auxiliary heating valve in road.
A kind of coolant distributor, three-pipe heating and reclaiming air-conditioning system and its control method provided by the invention, due to
It has been arranged in parallel the first heating branch and the second heating branch in one high temperature and pressure gas circuit, and has connected and sets in the second heating branch
Auxiliary heating valve and restricting element are set, it ensure that when coolant distributor is applied in three-pipe heating and reclaiming air-conditioning system,
When system is switched to heating condition by cooling condition, can first pass through the main heating valve truncation of control makes refrigerant first via the second heating
Branch is heated, namely so that auxiliary heating valve and restricting element is had an effect and heated, and at this point, due to restricting element
Reducing pressure by regulating flow effect, can reduce the pressure difference of refrigerant, be switched to heating mode mistake so as to effectively eliminate system in refrigeration
The noise and vibration that solenoid valve is generated due to refrigerant pressure difference in journey, improve the running stability and working performance of air-conditioning system.
Detailed description of the invention
Fig. 1 is the schematic illustration of the coolant distributor of the embodiment of the present invention；
The schematic illustration of the three-pipe heating and reclaiming air-conditioning system of Fig. 2 another embodiment of the present invention.
Appended drawing reference indicates are as follows:
11, main heating valve；12, auxiliary heating valve；13, restricting element；21, main refrigeration valve；22, assisted refrigeration valve；3, hot
Recycle outer machine unit；31, high temperature and pressure gas main；32, low-temp low-pressure gas main；33, main liquid tube；41, machine unit in first；
42, machine unit in second.
Specific embodiment
In conjunction with referring to shown in Fig. 1, Fig. 2, according to an embodiment of the invention, providing a kind of coolant distributor, it to be used for three control
In Air Conditioning System with Heat, including the first high temperature and pressure gas circuit, the first low-temp low-pressure gas circuit and the first fluid path, the first high temperature and pressure
One end of one end of gas circuit and the first low-temp low-pressure gas circuit is summarized for the first tracheae, the first tracheae be used for first in machine unit 41
First end connection, the other end of the first high temperature and pressure gas circuit is for the high temperature and pressure gas main 31 with machine unit 3 outside recuperation of heat
Connection, the other end of the first low-temp low-pressure gas circuit with the low-temp low-pressure gas main 32 of machine unit outside recuperation of heat for connecting, and first
Fluid path is connected in first between the second end of machine unit 41 and the main liquid tube 33 of the outer machine unit 3 of recuperation of heat namely the first fluid path
It include that there is main heating valve for connecting machine unit 41 and machine unit 3 outside recuperation of heat, the first high temperature and pressure gas circuit in perforation first
The first of 11 heats branch and the second heating branch with auxiliary heating valve 12, restricting element 13, auxiliary heating valve 12 and section
Fluid element 13 (such as capillary) is series in the second heating branch, and the first heating branch heats branch circuit parallel connection in the with second
In one high temperature and pressure gas circuit, the first low-temp low-pressure gas circuit includes having the first refrigeration branch of main refrigeration valve 21.The technical solution
In, due to being arranged in parallel the first heating branch and the second heating branch in the first high temperature and pressure gas circuit, and in the second heating
Auxiliary heating valve 11 and restricting element 13 are arranged in series in branch, it ensure that when coolant distributor is applied to three-pipe heating recycling
When in air-conditioning system, when system is switched to heating condition by cooling condition, can first pass through the main truncation of heating valve 11 of control makes
Refrigerant is first heated via the second heating branch, namely auxiliary heating valve 12 and restricting element 13 is first made to have an effect and be made
Heat, and at this point, due to restricting element 13 reducing pressure by regulating flow act on, can reduce the pressure difference of refrigerant, be so as to effectively eliminate
It unites and is switched to the noise and vibration that solenoid valve in heating mode processes is generated due to refrigerant pressure difference in refrigeration, improve air-conditioning system
Running stability and working performance.
Further, the first low-temp low-pressure gas circuit further includes having the second refrigeration of assisted refrigeration valve 22, restricting element 13
Branch, assisted refrigeration valve 22 and restricting element 13 are series in the second refrigeration branch, and the first refrigeration branch and the second refrigeration branch
Road is parallel in the first low-temp low-pressure gas circuit.The technical solution is switched in three-pipe heating and reclaiming air-conditioning system by heating mode
When refrigeration mode, can first pass through the main truncation of refrigeration valve 21 of control makes refrigerant first freeze via the second refrigeration branch, namely
So that assisted refrigeration valve 22 and restricting element 13 is had an effect and is freezed, and at this point, due to restricting element 13 reducing pressure by regulating flow
Effect, can reduce the pressure difference of refrigerant, so as to effectively eliminate system solenoid valve during heating is switched to refrigeration mode
The noise generated due to refrigerant pressure difference and vibration, improve the running stability and working performance of air-conditioning system.
Certainly, for there are multiple interior machine units the case where, in order to realize the independent control to each interior machine unit
It makes, may include multiple first high temperature and pressure gas circuits, the first low-temp low-pressure gas circuit and the first fluid path in coolant distributor, in order to just
Introduced in difference, under the difference of title is only carried out to corresponding gas circuit or fluid path, for example, coolant distributor further includes second
High temperature and pressure gas circuit, the second low-temp low-pressure gas circuit and the second fluid path, one end of the second high temperature and pressure gas circuit and the second low-temp low-pressure
One end of gas circuit is summarized for the second tracheae, and the second tracheae with the first end of machine unit 42 in second for connect, the second high temperature height
The other end of pressure gas channel with high temperature and pressure gas main 31 for connecting, and the other end of the second low-temp low-pressure gas circuit is used for and recuperation of heat
The low-temp low-pressure gas main 32 of outer machine unit connects, and the second fluid path is connected to the second end of machine unit 42 and main liquid tube 33 in second
Between namely the second fluid path for connecting the outer machine unit 3 of machine unit 42 and recuperation of heat in perforation second, it is to be understood that this
Second high temperature and pressure gas circuit, the second low-temp low-pressure gas circuit and second fluid path at place correspond respectively to the first high temperature and pressure gas above-mentioned
Road, the first low-temp low-pressure gas circuit and the first fluid path completely can be using same constructions, to realize in mould on pipeline composition
The noise of coolant distributor and the reduction of vibration when formula switches.
According to an embodiment of the invention, also providing a kind of three-pipe heating and reclaiming air-conditioning system, distributed including above-mentioned refrigerant
Device., a kind of control method of three-pipe heating and reclaiming air-conditioning system is also provided, recycles air-conditioning system for controlling above-mentioned three-pipe heating
System, to realize switching of the air-conditioning system between refrigeration mode and heating mode.
It is described accordingly for the control of machine unit 41 in first below.
Machine unit 41 in first is given in Fig. 2 is in heating mode, and under machine unit 42 is in refrigeration mode in second
Refrigerant flow direction.In terms of specific switching, specifically, main heating valve 11 conducting in the first high temperature and pressure gas circuit of control, auxiliary
It heats valve 12 to be truncated, controls the main refrigeration valve 21 in the first low-temp low-pressure gas circuit, assisted refrigeration valve 22 is truncated, machine in realization first
The heating mode of unit 41, the heating mode of machine unit 41 runs the first preset time (this basis of time in first later
Depending on the actual demand of user) after, control the main heating valve 11 in the first high temperature and pressure gas circuit, auxiliary heating valve 12 is truncated, control
Make the truncation of main refrigeration valve 21 in the first low-temp low-pressure gas circuit, assisted refrigeration valve 22 is connected, the system of machine unit 41 in realization first
Cold mode, the expenditure and pressure effect with the concatenated restricting element 13 of assisted refrigeration valve 22 at this time ensure that making an uproar for refrigerant distributing valve
Sound and vibration are effectively reduced, and followed by, the refrigeration mode of machine unit 41 runs the second preset time (according to reality in first
Demand is manually set) after, the conducting of main refrigeration valve 21, the truncation of assisted refrigeration valve 22 in the first low-temp low-pressure gas circuit are controlled,
Realize traditional refrigeration mode.
For another example, the main heating valve 11 in the first high temperature and pressure gas circuit is controlled, auxiliary heating valve 12 is truncated, the first low temperature of control
The conducting of main refrigeration valve 21 in low pressure gas circuit, assisted refrigeration valve 22 are truncated, and realize the refrigeration mode of machine unit 41 in first.Later
In first after 41 refrigeration mode of machine unit operation the first preset time (depending on the actual demand of this basis of time user), control
Make the main refrigeration valve 21 in the first low-temp low-pressure gas circuit, assisted refrigeration valve 22 is truncated, the master in the first high temperature and pressure gas circuit of control
Heat valve 11 truncation, auxiliary heating valve 12 be connected, realize first in machine unit 41 heating mode, at this time with auxiliary heating valve
The expenditure and pressure effect of 12 concatenated restricting elements 13 ensure that the noise of refrigerant distributing valve and being effectively reduced for vibration, in addition
Afterwards, after the heating mode of machine unit 41 runs the second preset time (being manually set according to actual needs) in first, control
The conducting of main heating valve 11, the truncation of auxiliary heating valve 12 in the first high temperature and pressure gas circuit are made, realizes traditional heating mould
Formula.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention
Protect range.
Claims (11)
1. a kind of coolant distributor, which is characterized in that including the first high temperature and pressure gas circuit, the first low-temp low-pressure gas circuit and the first liquid
Road, one end of one end of the first high temperature and pressure gas circuit and the first low-temp low-pressure gas circuit are summarized for the first tracheae, and the first fluid path is used for
Machine unit (41) and the outer machine unit (3) of recuperation of heat, the first high temperature and pressure gas circuit include having main heating valve in connection perforation first
(11) the first heating branch and the second heating branch with auxiliary heating valve (12), restricting element (13), auxiliary heating valve
(12) it is series in the second heating branch with restricting element (13), and the first heating branch and the second heating branch circuit parallel connection are in first
In high temperature and pressure gas circuit, the first low-temp low-pressure gas circuit includes the first refrigeration branch with main refrigeration valve (21).
2. coolant distributor according to claim 1, which is characterized in that the first low-temp low-pressure gas circuit further includes with assisted refrigeration
Second refrigeration branch of valve (22), restricting element (13), assisted refrigeration valve (22) and restricting element (13) are series at the second refrigeration
In branch, and the first refrigeration branch and the second refrigeration branch are parallel in the first low-temp low-pressure gas circuit.
3. coolant distributor according to claim 1, which is characterized in that further include that the second high temperature and pressure gas circuit, the second low temperature are low
Summarize for the second gas one end of pressure gas channel and the second fluid path, one end of the second high temperature and pressure gas circuit and the second low-temp low-pressure gas circuit
Pipe, the second fluid path is for connecting machine unit (42) and the outer machine unit (3) of recuperation of heat in perforation second.
4. a kind of three-pipe heating and reclaiming air-conditioning system, including coolant distributor, which is characterized in that coolant distributor is claim
Any one of 1 to 3 coolant distributor.
5. a kind of control method of three-pipe heating and reclaiming air-conditioning system, which is characterized in that for controlling three control of claim 4
Air Conditioning System with Heat, to realize switching of the air-conditioning system between refrigeration mode and heating mode.
6. control method according to claim 5, which is characterized in that the main heating valve (11) in the first high temperature and pressure gas circuit of control
Conducting, auxiliary heating valve (12) truncation control the main refrigeration valve (21) in the first low-temp low-pressure gas circuit, assisted refrigeration valve (22) is cut
It is disconnected, realize the heating mode of machine unit (41) in first.
7. control method according to claim 6, which is characterized in that the heating mode operation first of machine unit (41) in first
After preset time, it is low to control first for main heating valve (11), auxiliary heating valve (12) truncation in the first high temperature and pressure gas circuit of control
Main refrigeration valve (21) truncation, assisted refrigeration valve (22) conducting in warm low pressure gas circuit, realize the refrigeration of machine unit (41) in first
Mode.
8. control method according to claim 7, which is characterized in that the refrigeration mode operation second of machine unit (41) in first
After preset time, main refrigeration valve (21) conducting, assisted refrigeration valve (22) truncation in the first low-temp low-pressure gas circuit are controlled.
9. control method according to claim 5, which is characterized in that the main heating valve in the first high temperature and pressure gas circuit of control
(11), auxiliary heating valve (12) is truncated, main refrigeration valve (21) conducting in the first low-temp low-pressure gas circuit of control, assisted refrigeration valve
(22) it is truncated, realizes the refrigeration mode of machine unit (41) in first.
10. control method according to claim 9, which is characterized in that machine unit (41) the refrigeration mode operation first in first
After preset time, it is high to control first for main refrigeration valve (21), assisted refrigeration valve (22) truncation in the first low-temp low-pressure gas circuit of control
The truncation of main heating valve (11), auxiliary heating valve (12) conducting in warm high-pressure gas circuit, realize the heating of machine unit (41) in first
Mode.
11. control method according to claim 10, which is characterized in that the heating mode operation the of machine unit (41) in first
After two preset times, the conducting of main heating valve (11), auxiliary heating valve (12) truncation in the first high temperature and pressure gas circuit are controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811489314.7A CN109631424A (en) | 2018-12-06 | 2018-12-06 | Coolant distributor, three-pipe heating and reclaiming air-conditioning system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811489314.7A CN109631424A (en) | 2018-12-06 | 2018-12-06 | Coolant distributor, three-pipe heating and reclaiming air-conditioning system and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109631424A true CN109631424A (en) | 2019-04-16 |
Family
ID=66071748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811489314.7A Withdrawn CN109631424A (en) | 2018-12-06 | 2018-12-06 | Coolant distributor, three-pipe heating and reclaiming air-conditioning system and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109631424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178893A (en) * | 2020-09-22 | 2021-01-05 | 广东美的暖通设备有限公司 | Air conditioner, control method, and computer-readable storage medium |
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| JP2003083641A (en) * | 2001-09-07 | 2003-03-19 | Mitsubishi Electric Corp | Flow control device, restricting device and air conditioning equipment |
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| KR20110092117A (en) * | 2010-02-08 | 2011-08-17 | 엘지전자 주식회사 | A refrigerant system |
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| CN112178893A (en) * | 2020-09-22 | 2021-01-05 | 广东美的暖通设备有限公司 | Air conditioner, control method, and computer-readable storage medium |
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Application publication date: 20190416 |
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| WW01 | Invention patent application withdrawn after publication |