CN107238239A - Centrifugal refrigerating machines and its control method - Google Patents
Centrifugal refrigerating machines and its control method Download PDFInfo
- Publication number
- CN107238239A CN107238239A CN201710452761.4A CN201710452761A CN107238239A CN 107238239 A CN107238239 A CN 107238239A CN 201710452761 A CN201710452761 A CN 201710452761A CN 107238239 A CN107238239 A CN 107238239A
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- China
- Prior art keywords
- valve body
- cleaning tank
- refrigerating machines
- gas
- centrifugal refrigerating
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/04—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for withdrawing non-condensible gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention provides a kind of centrifugal refrigerating machines and its control method, including condenser, evaporator and compressor, the condenser, the evaporator and the compressor join end to end to form closed-loop path, circulation has refrigerant in the closed-loop path, also include being provided with gas access, gas vent and liquid refrigerant outlet on cleaning tank and cooling system, the cleaning tank.Centrifugal refrigerating machines and its control method that the present invention is provided, by setting cleaning tank, the mixed gas for being mixed with gaseous refrigerant and on-condensible gas is sent in cleaning tank and cooled down, after on-condensible gas is separated, pass through the cooperation of the first valve body, the second valve body, the 3rd valve body, the 4th valve body and the 5th valve body, by in the refrigerant feeding system after cooling, and the on-condensible gas after separation is emitted in handpiece Water Chilling Units, reach the purpose cleaned to on-condensible gas.
Description
Technical field
The present invention relates to art of refrigeration units, particularly a kind of centrifugal refrigerating machines and its control method.
Background technology
In the centrifugal refrigerating machines system of negative pressure working medium, due to the physical characteristic of negative pressure working medium, unit was being run
Cheng Zhong, evaporator is in negative pressure state, and outside air can leak into evaporator, cause to be mixed into air in refrigeration working medium, cause
The hydraulic performance decline of unit.
Enter air of system etc. and enter condenser by compressor compresses, within the condenser, gaseous refrigeration work
Matter and cooling water, which exchange heat, is condensed into the refrigeration working medium of liquid, and be mixed into air in system etc. can not be in the pressure residing for condenser
Condensed under power and the water temperature of cooling water, as on-condensible gas.With the longtime running of unit, on-condensible gas will progressively be accumulated
Condenser top, has a strong impact on unit performance.
The content of the invention
In order to solve the above-mentioned technical problem, a kind of centrifugation for the on-condensible gas that can be separated and be mixed into refrigerant is provided
Formula handpiece Water Chilling Units and its control method.
A kind of centrifugal refrigerating machines, including condenser, evaporator and compressor, in addition to cleaning tank and cooling system,
Gas access, gas vent and liquid refrigerant outlet, the gas access and the condenser are provided with the cleaning tank
Refrigerant gas outlet is connected, and the liquid refrigerant outlet is connected with the refrigerant inlet of the evaporator, the gas vent
It is in communication with the outside, the cooling system is arranged in the cleaning tank to being cooled down in the cleaning tank.
The cooling system is cooling coil, and the cooling coil is arranged at the inside of the cleaning tank, and two ends are passed through
The side wall for wearing the cleaning tank is connected with cooling working medium feedway.
One end of the cooling coil and the coolant liquid outlet of the condenser, the other end and the evaporator
Entrance connection.
One end that the cooling coil is connected with the condenser liquid outlet is provided with the first valve body, and the other end is provided with
3rd valve body.
One end of the cooling coil is connected with the cooling water inlet of the condenser, and the other end is cold with the condenser
But water out is connected.
The gas vent is in communication with the outside by the 4th valve body, and the cooling coil is connected with the cooling water inlet
One end is provided with the first valve body, and the other end is provided with the 3rd valve body.
The cooling system is air cooling system, and the side wall of the cleaning tank, and one are run through in the two ends of the air cooling system
End is connected with cold wind feedway.
The 5th valve body is provided with the gas access, the liquid refrigerant exit is provided with the second valve body.
Liquid level of the liquid refrigerant outlet less than the liquid refrigerant in the cleaning tank.
A kind of control method of above-mentioned centrifugal refrigerating machines,
S1, the refrigerant charge for reading centrifugal refrigerating machines, experiment detection slip；
S2, connection first valve body, the second valve body, the 3rd valve body and the 5th valve body, disconnect the 4th valve body, and hold
Continuous first time period, makes the centrifugal refrigerating machines carry out refrigeration mode, and send into gaseous refrigerant into the cleaning tank
With the mixed gas of on-condensible gas；
S3, disconnection second valve body, the 4th valve body and the 5th valve body, connect first valve body and the 3rd valve
Body, and continue second time period, the refrigerant is cooled down the mixed gas in the cleaning tank；
S4, disconnection first valve body and the 3rd valve body, connect the 4th valve body, and continue for the 3rd period,
Make the not cooled on-condensible gas discharge in the cleaning tank；
S5, repeat step S2-S4.
Centrifugal refrigerating machines and its control method that the present invention is provided, by setting cleaning tank, will be mixed with gaseous refrigerant
The mixed gas of agent and on-condensible gas is sent in cleaning tank and cooled down, after on-condensible gas is separated, and passes through the first valve body, the
Two valve bodies, the 3rd valve body, the cooperation of the 4th valve body and the 5th valve body, by the refrigerant feeding system after cooling, and will separation
On-condensible gas afterwards is emitted in handpiece Water Chilling Units, reaches the purpose cleaned to on-condensible gas.
Brief description of the drawings
Centrifugal refrigerating machines and its structural representation of control method that Fig. 1 provides for the present invention；
Centrifugal refrigerating machines and its another structural representation of control method that Fig. 2 provides for the present invention；
In figure：
1st, condenser；2nd, evaporator；3rd, tank is cleaned；4th, cooling system；51st, the first valve body；52nd, the second valve body；53rd, the 3rd
Valve body；54th, the 4th valve body；55th, the 5th valve body.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples pair
The frock of the assembled display component of the present invention is further elaborated.It should be appreciated that specific implementation described herein
Example is only used for explaining the present invention, is not intended to limit the present invention.
Centrifugal refrigerating machines as depicted in figs. 1 and 2, including condenser 1, evaporator 2 and compressor, in addition to cleaning
Gas access 31, gas vent 32 and liquid refrigerant outlet 33 are provided with tank 3 and cooling system 4, the cleaning tank 3, it is described
Gas access 31 is connected with the refrigerant gas outlet 32 of the condenser 1, the liquid refrigerant outlet 33 and the evaporator 2
Refrigerant inlet connection, the gas vent 32 is in communication with the outside, and the cooling system 4 is arranged at right in the cleaning tank 3
Cooled down in the cleaning tank 3, what is entered at the gas access 31 is the mixing for being mixed with gaseous refrigerant and on-condensible gas
Gas, from the liquid refrigerant export 33 outflow be cooling after liquid refrigerant, from gas vent 32 discharge be not solidifying
Gas.
It is preferred that, the condenser 1, the evaporator 2 and the compressor join end to end to form closed-loop path, described to close
Closing circulation in loop has refrigerant.
The cooling system 4 is cooling coil, and the cooling coil is arranged at the inside of the cleaning tank 3, and two ends are equal
Side wall through the cleaning tank 3 is connected with cooling working medium feedway, and cleaning tank 3 inside is mixed by cooling coil
Close gas to be cooled down, the refrigerant for being possible to condensation becomes liquid, reaches the effect for separating mixed gas.
One end of the cooling coil and the coolant liquid outlet of the condenser 1, the other end and the evaporation
The entrance connection of device 2, by the use of the refrigerant of the centrifugal refrigerating machines as low-temperature receiver, to being cooled down in cleaning tank 3.
One end that the cooling coil is connected with the liquid outlet of condenser 1 is provided with the first valve body 51, and the other end is set
The 3rd valve body 53 is equipped with, by setting the first valve body 51 and the 3rd valve body 53 to control whether the cooling coil is operated,
The operating efficiency of cooling coil can be controlled.
As another embodiment, one end of the cooling coil is connected with the cooling water inlet of the condenser 1, another
End is connected with the coolant outlet of the condenser 1, i.e., described cooling coil flows into the cooling of the condenser 1 using a part
Water is freezed as low-temperature receiver.
The cooling coil is provided with the first valve body 51 with one end that the cooling water inlet is connected, and the other end is provided with
Three valve bodies 53.
The cooling system 4 is air cooling system, and the side wall of the cleaning tank 3 is run through at the two ends of the air cooling system, and
One end is connected with cold wind feedway.
The gas vent 32 is in communication with the outside by the 4th valve body 54, and the 5th valve body is provided with the gas access 31
55, the liquid refrigerant exports and is provided with the second valve body 52 at 33, enters institute by the 5th valve body 55 and the control of the second valve body 52
State the amount of the gas inside cleaning tank 3 and flow out the amount of the liquid of the cleaning tank 3, it is ensured that the cleaning efficiency of cleaning tank 3.
The liquid refrigerant outlet 33 prevents gaseous mixture less than the liquid level of the liquid refrigerant in the cleaning tank 3
Body is flowed into the centrifugal refrigerating unit at liquid refrigerant outlet 33, causes cleaning efficiency to reduce.
A kind of control method of above-mentioned centrifugal refrigerating machines,
S1, the refrigerant charge for reading centrifugal refrigerating machines, experiment detection slip；
S2, connection first valve body 51, the second valve body 52, the 3rd valve body 53 and the 5th valve body 55, disconnect the described 4th
Valve body 54, and continue first time period, the centrifugal refrigerating machines is carried out refrigeration mode, and sent into the cleaning tank 3
Enter the mixed gas of gaseous refrigerant and on-condensible gas；
S3, disconnection second valve body 52, the 4th valve body 54 and the 5th valve body 55, connect first valve body 51 and described
3rd valve body 53, and continue second time period, the refrigerant is cooled down the mixed gas in the cleaning tank 3；
S4, disconnection first valve body 51 and the 3rd valve body 53, connect the 4th valve body 54, and when continuing the 3rd
Between section, make the not cooled on-condensible gas discharge in the cleaning tank 3；
S5, repeat step S2-S4.
In S1, according to the specification of centrifugal refrigerating machines, the capacity of handpiece Water Chilling Units inner refrigerant is directly read, is drawn
The amount of refrigerant in the unit, then detects the slip of actual handpiece Water Chilling Units, is operated by S2, makes mixed gas from described
Send into the cleaning tank 3, be full of the cleaning tank 3 in condenser 1 in lasting first time period, at the same time, institute
State cooling system 4 to be cooled down, the evaporator 2 can carry out normal work, after lasting first time period, operate by S3,
Stop to feeding mixed gas in the cleaning tank 3, the cooling system 4 is persistently cooled down to mixed gas, lasting
In second time period, the gaseous refrigerant in mixed gas is condensed into liquid buildup in the bottom of the cleaning tank 3, continued
After second time period, the low-temperature receiver of the cooling system 4 is disconnected, while the on-condensible gas cleaned in tank 3 is given off into cleaning tank 3
It is interior, reach the purpose cleaned to mixed gas.
Wherein, the first time period, second time period, the 3rd period and the slip, the body of the cleaning tank
The refrigerant charge of long-pending, described centrifugal refrigerating machines is related.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of centrifugal refrigerating machines, including condenser (1), evaporator (2) and compressor, it is characterised in that：Also include clear
Gas access (31), gas vent (32) and liquid refrigerant are provided with clean tank (3) and cooling system (4), the cleaning tank (3)
Export (33), the gas access (31) connects with the refrigerant gas outlet (32) of the condenser (1), the liquid refrigerant
Outlet (33) is connected with the refrigerant inlet of the evaporator (2), and the gas vent (32) is in communication with the outside, the cooling system
System (4) is arranged in the cleaning tank (3) to being cooled down in the cleaning tank (3).
2. centrifugal refrigerating machines according to claim 1, it is characterised in that：The cooling system (4) is cooling coil,
The cooling coil is arranged at the inside of the cleaning tank (3), and side wall and bosher of the two ends through the cleaning tank (3)
Matter feedway is connected.
3. centrifugal refrigerating machines according to claim 2, it is characterised in that：One end of the cooling coil with it is described cold
The coolant liquid outlet of condenser (1), the other end is connected with the entrance of the evaporator (2).
4. centrifugal refrigerating machines according to claim 3, it is characterised in that：The cooling coil and the condenser
(1) one end of liquid outlet connection is provided with the first valve body (51), and the other end is provided with the 3rd valve body (53).
5. centrifugal refrigerating machines according to claim 2, it is characterised in that：One end of the cooling coil with it is described cold
The cooling water inlet connection of condenser (1), the other end is connected with the coolant outlet of the condenser (1).
6. centrifugal refrigerating machines according to claim 5, it is characterised in that：The cooling coil enters with the cooling water
One end of mouth connection is provided with the first valve body (51), and the other end is provided with the 3rd valve body (53).
7. centrifugal refrigerating machines according to claim 1, it is characterised in that：The cooling system (4) is air cooling system,
The side wall of the cleaning tank (3) is run through at the two ends of the air cooling system, and one end is connected with cold wind feedway.
8. centrifugal refrigerating machines according to any one of claim 1 to 7, it is characterised in that：The gas vent
(32) it is in communication with the outside by the 4th valve body (54), gas access (31) place is provided with the 5th valve body (55), the liquid
Sender property outlet (33) place is provided with the second valve body (52).
9. centrifugal refrigerating machines according to claim 1, it is characterised in that：The liquid refrigerant outlet (33) is less than institute
State the liquid level of the liquid refrigerant in cleaning tank (3).
10. a kind of control method of the centrifugal refrigerating machines any one of claim 1-9, it is characterised in that：
S1, the refrigerant charge for reading centrifugal refrigerating machines, experiment detection slip；
S2, connection first valve body (51), the second valve body (52), the 3rd valve body (53) and the 5th valve body (55), disconnect described
4th valve body (54), and continue first time period, makes the centrifugal refrigerating machines carry out refrigeration mode, and to the cleaning tank
(3) mixed gas of feeding gaseous refrigerant and on-condensible gas in；
S3, disconnect second valve body (52), the 4th valve body (54) and the 5th valve body (55), connection first valve body (51) and
3rd valve body (53), and continue second time period, the refrigerant is carried out the mixed gas in the cleaning tank (3)
Cooling；
S4, disconnection first valve body (51) and the 3rd valve body (53), connect the 4th valve body (54), and continue the 3rd
Period, make the not cooled on-condensible gas discharge in the cleaning tank (3)；
S5, repeat step S2-S4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710452761.4A CN107238239A (en) | 2017-06-15 | 2017-06-15 | Centrifugal refrigerating machines and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710452761.4A CN107238239A (en) | 2017-06-15 | 2017-06-15 | Centrifugal refrigerating machines and its control method |
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| Publication Number | Publication Date |
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| CN107238239A true CN107238239A (en) | 2017-10-10 |
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ID=59986387
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710452761.4A Pending CN107238239A (en) | 2017-06-15 | 2017-06-15 | Centrifugal refrigerating machines and its control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955014A (en) * | 2018-09-18 | 2018-12-07 | 迪茗（上海）智能科技有限公司 | A kind of closed vacuum refrigeration and cold accumulation device and method |
| WO2021120689A1 (en) * | 2019-12-18 | 2021-06-24 | 珠海格力电器股份有限公司 | Air conditioning unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203810809U (en) * | 2014-04-22 | 2014-09-03 | 阿姆斯壮机械（中国）有限公司 | Refrigerating system and gas exhausting device for same |
| CN106322805A (en) * | 2015-07-10 | 2017-01-11 | 开利公司 | Refrigeration system and purification method thereof |
| CN207006649U (en) * | 2017-06-15 | 2018-02-13 | 珠海格力电器股份有限公司 | Centrifugal refrigerating machines |
-
2017
- 2017-06-15 CN CN201710452761.4A patent/CN107238239A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203810809U (en) * | 2014-04-22 | 2014-09-03 | 阿姆斯壮机械（中国）有限公司 | Refrigerating system and gas exhausting device for same |
| CN106322805A (en) * | 2015-07-10 | 2017-01-11 | 开利公司 | Refrigeration system and purification method thereof |
| CN207006649U (en) * | 2017-06-15 | 2018-02-13 | 珠海格力电器股份有限公司 | Centrifugal refrigerating machines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955014A (en) * | 2018-09-18 | 2018-12-07 | 迪茗（上海）智能科技有限公司 | A kind of closed vacuum refrigeration and cold accumulation device and method |
| CN108955014B (en) * | 2018-09-18 | 2023-12-01 | 江苏允微流体科技有限公司 | Closed vacuum refrigeration cold accumulation equipment and method |
| WO2021120689A1 (en) * | 2019-12-18 | 2021-06-24 | 珠海格力电器股份有限公司 | Air conditioning unit |
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