CN209054718U - A kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting - Google Patents
A kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting Download PDFInfo
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- CN209054718U CN209054718U CN201821954304.1U CN201821954304U CN209054718U CN 209054718 U CN209054718 U CN 209054718U CN 201821954304 U CN201821954304 U CN 201821954304U CN 209054718 U CN209054718 U CN 209054718U
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- condenser
- electric expansion
- expansion valve
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Abstract
The utility model discloses a kind of magnetic suspension water coolers of multi-compressor structure capable of fast starting, it is characterized in that, including compressor, check valve, pressure release electric expansion valve, condenser, electric expansion valve, evaporator, multiple compressors share a heat exchanger coolant system, multiple compressors are identical as the connection type of heat exchanger coolant system, the condenser, electric expansion valve and evaporator are sequentially connected in series, the compressor outlet is connect with condenser, arrival end is connect with evaporator, check valve is provided between compressor outlet and condenser, the utility model has the beneficial effects that by increasing magnetic suspension compressor exhaust pressure relief structure, realize the release of magnetic suspension compressor outlet pressure when low frequency operates, and meets exported again by exhaust pipe when achieving the purpose that convenient pressure simultaneously, both the starting of compressor had been accelerated, It effectively prevent compressor low-frequency start that cannot export the problem of refrigerant causes itself to damage again.
Description
Technical field
The utility model belongs to -- a kind of technical field, and in particular to magnetic suspension of multi-compressor structure capable of fast starting
Water cooler.
Background technique
Industry mostly uses following two system structure using the water cooler of more than one magnetic suspension compressor at present:
One is as shown in Figure 1, compressor A and compressor B respectively cooperate a set of heat exchanger coolant system, each system phase
To independence, operation is non-interference, but coupling part increases cost between two independent heat-exchange systems, while also increasing one
A system tie point, there are the hidden danger of coolant leakage.
Another kind is that figure is as shown in Fig. 2, multiple compressors share a heat exchanger coolant system.But the work of compressor
It is not fully identical to make state, starting has successively.When compressor A running at full capacity, at this point, in low frequency when compressor B starts
The pressure value of open check valve B is not achieved in state operating, outlet pressure, and what is generated before compressor B reaches full load condition is cold
Matchmaker can not discharge, and cause the revolving speed of compressor B and loading velocity very slow.In addition, for a long time in pressure can not release conditions, it is right
The damage of compressor B is very big.
Utility model content
Start slow, easy damage compressor ask for the magnetic suspension water cooler of multi-compressor structure in the prior art
Topic provides a kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting.
A kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting, which is characterized in that including compressor, list
To valve, pressure release electric expansion valve, condenser, electric expansion valve, evaporator, multiple compressors share a heat exchanger refrigerant system
System, multiple compressors are identical as the connection type of heat exchanger coolant system,
The condenser, electric expansion valve and evaporator are sequentially connected in series,
The compressor outlet is connect with condenser, and arrival end is connect with evaporator, compressor outlet and condenser it
Between be provided with check valve,
The outlet of pressure release electric expansion valve one end and compressor connects, and the entrance of the other end and compressor connects, and lets out
It presses and is provided with shut-off valve on the both ends pipeline of electric expansion valve.
The utility model has the beneficial effects that
By increasing magnetic suspension compressor exhaust pressure relief structure, magnetic suspension compressor outlet pressure when low frequency operates is realized
The release of power, and meet exported again by exhaust pipe when achieving the purpose that convenient pressure simultaneously, the starting of compressor had both been accelerated,
It effectively prevent compressor low-frequency start that cannot export the problem of refrigerant causes itself to damage again.
Detailed description of the invention
Fig. 1 is the schematic diagram of prior art magnetic suspension water cooler；
Fig. 2 is the schematic diagram of prior art magnetic suspension water cooler；
Fig. 3 is an embodiment of the present invention structure principle chart.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical solution of the utility model is described further.
A kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting, including compressor, check valve, pressure release electricity
Sub- expansion valve, condenser, electric expansion valve, evaporator, multiple compressors share a heat exchanger coolant system, multiple compressors
It is identical as the connection type of heat exchanger coolant system,
The condenser, electric expansion valve and evaporator are sequentially connected in series,
The compressor outlet is connect with condenser, and arrival end is connect with evaporator, compressor outlet and condenser it
Between be provided with check valve,
The outlet of pressure release electric expansion valve one end and compressor connects, and the entrance of the other end and compressor connects, pressure release electricity
Shut-off valve is provided on the both ends pipeline of sub- expansion valve.
Preferably, the magnetic suspension water cooler of multi-compressor structure capable of fast starting, including A compressor, A check valve, A
Pressure release electric expansion valve, B compressor, B check valve, B pressure release electric expansion valve, condenser, electric expansion valve, evaporator,
The condenser, electric expansion valve and evaporator are sequentially connected in series,
The A compressor outlet is connect with condenser, and arrival end is connect with evaporator, A compressor outlet and condenser
Between be provided with A check valve,
The pressure release electric expansion valve one end A is connect with the outlet of A compressor, and the other end is connect with the entrance of A compressor, and A is let out
It presses and is provided with A shut-off valve on the both ends pipeline of electric expansion valve；
The B compressor outlet is connect with condenser, and arrival end is connect with evaporator, B compressor outlet and condenser
Between be provided with B check valve,
The pressure release electric expansion valve one end B is connect with the outlet of B compressor, and the other end is connect with the entrance of B compressor, and B is let out
It presses and is provided with B shut-off valve on the both ends pipeline of electric expansion valve.
This programme is to realize that magnetic suspension compressor is operated in low frequency by increasing magnetic suspension compressor exhaust pressure relief structure
When outlet pressure release, and meet when achieving the purpose that convenient pressure simultaneously and to be exported again by exhaust pipe.(this programme is with two-shipper
Illustrate for head)
Embodiment 1, as shown in figure 3, the magnetic suspension water cooler of multi-compressor structure capable of fast starting, including A compression
Machine 21, A check valve 23, A pressure release electric expansion valve 22, B compressor 31, B check valve 33, B pressure release electric expansion valve 32, condenser
13, electric expansion valve 12, evaporator 11,
The condenser 13, electric expansion valve 12 and evaporator 11 are sequentially connected in series,
21 outlet end of A compressor is connect with condenser 13, and arrival end is connect with evaporator 11, and A compressor 21 exports
A check valve 23 is provided between condenser 13,
22 one end of A pressure release electric expansion valve is connect with the outlet of A compressor 21, and the entrance of the other end and A compressor 21 connects
It connects, is provided with A shut-off valve 24 on the both ends pipeline of A pressure release electric expansion valve 22；
31 outlet end of B compressor is connect with condenser 13, and arrival end is connect with evaporator 11, and B compressor 31 exports
B check valve 33 is provided between condenser 13,
32 one end of B pressure release electric expansion valve is connect with the outlet of B compressor 31, and the entrance of the other end and B compressor 31 connects
It connects, is provided with B shut-off valve 34 on the both ends pipeline of B pressure release electric expansion valve 32.
This programme increases pressure relief between the outlet and entrance of compressor, is controlled by pressure release electronic expansion valve regulation
Outlet pressure.When system A compressor 21 starts, system A check valve 23 is opened, and refrigerant enters condenser 13, works as full load running
When condenser 13 in pressure about 0.7Mpa.System B compressor 31 starts to start at this time, because compressor is variable frequency starting, opens
Dynamic frequency only has 2Hz, at this time the outlet pressure about 0.1Mpa or so of B compressor 31, until compressor full-load run this period
The outlet pressure of interior (about 10 minutes) B compressor 31 is less than 13 internal pressure of condenser, so system B check valve 33 can not be beaten
It opens.At this moment to prevent 31 refrigerant pressure of B compressor from can not discharge, program control system B pressure release electric expansion valve 32 is opened, and will be gone out
Mouth refrigerant is discharged into 31 entrance of B compressor, accelerates system B pressure release when compressor loads to outlet pressure is greater than 13 pressure of condenser
Electric expansion valve 32 is closed, and 31 outlet pressure of system B compressor opens system B check valve 33, and two press run well.
When there is multiple compressors, the accumulated running time to ensure each compressor is identical, all multi-machine heads compressors
Each boot sequence is inconsistent, so each compressor will increase a set of pressure relief.
The increased cut-off valve action in pressure relief system pressure release electric expansion valve both ends be for convenience maintenance use, maintenance when
The shut-off valve for only needing to close both ends is waited, pressure release electric expansion valve can be repaired, close compressor is not necessarily to.Pass through the skill
The implementation of art, can fundamentally solving multi-machine heads magnetic suspension compressor group, in multiple compressors not start speed simultaneously slow, and
And because refrigerant, which can not discharge, influences compressor service life the problem of.
It will be appreciated that the embodiments of the present invention while there has been shown and described that, for the common skill of this field
For art personnel, it is possible to understand that can be carried out to these embodiments in the case where not departing from the principles of the present invention and spirit
A variety of change, modification, replacement and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (2)
1. a kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting, which is characterized in that including compressor, unidirectionally
Valve, pressure release electric expansion valve, condenser, electric expansion valve, evaporator, multiple compressors share a heat exchanger coolant system,
Multiple compressors are identical as the connection type of heat exchanger coolant system,
The condenser, electric expansion valve and evaporator are sequentially connected in series,
The compressor outlet is connect with condenser, and arrival end is connect with evaporator, is set between compressor outlet and condenser
Check valve is equipped with,
The outlet of pressure release electric expansion valve one end and compressor connects, and the entrance of the other end and compressor connects, and pressure release electronics is swollen
Shut-off valve is provided on the both ends pipeline of swollen valve.
2. the magnetic suspension water cooler of multi-compressor structure capable of fast starting as described in claim 1, which is characterized in that packet
Include A compressor (21), A check valve (23), A pressure release electric expansion valve (22), B compressor (31), B check valve (33), B pressure release electricity
Sub- expansion valve (32), condenser (13), electric expansion valve (12), evaporator (11),
The condenser (13), electric expansion valve (12) and evaporator (11) are sequentially connected in series,
A compressor (21) outlet end is connect with condenser (13), and arrival end is connect with evaporator (11), A compressor (21)
A check valve (23) are provided between outlet and condenser (13),
A pressure release electric expansion valve (22) one end is connect with the outlet of A compressor (21), the entrance of the other end and A compressor (21)
It connects, is provided with A shut-off valve (24) on the both ends pipeline of A pressure release electric expansion valve (22)；
B compressor (31) outlet end is connect with condenser (13), and arrival end is connect with evaporator (11), B compressor (31)
B check valve (33) are provided between outlet and condenser (13),
B pressure release electric expansion valve (32) one end is connect with the outlet of B compressor (31), the entrance of the other end and B compressor (31)
It connects, is provided with B shut-off valve (34) on the both ends pipeline of B pressure release electric expansion valve (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821954304.1U CN209054718U (en) | 2018-11-26 | 2018-11-26 | A kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821954304.1U CN209054718U (en) | 2018-11-26 | 2018-11-26 | A kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting |
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| Publication Number | Publication Date |
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| CN209054718U true CN209054718U (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821954304.1U Active CN209054718U (en) | 2018-11-26 | 2018-11-26 | A kind of magnetic suspension water cooler of multi-compressor structure capable of fast starting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928504A (en) * | 2020-08-24 | 2020-11-13 | 珠海格力电器股份有限公司 | Refrigerant circulation system and control method |
-
2018
- 2018-11-26 CN CN201821954304.1U patent/CN209054718U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928504A (en) * | 2020-08-24 | 2020-11-13 | 珠海格力电器股份有限公司 | Refrigerant circulation system and control method |
| CN111928504B (en) * | 2020-08-24 | 2021-08-20 | 珠海格力电器股份有限公司 | Refrigerant circulation system and control method |
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