CN102865690B - Water cooling unit - Google Patents
Water cooling unit Download PDFInfo
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- CN102865690B CN102865690B CN201210360538.4A CN201210360538A CN102865690B CN 102865690 B CN102865690 B CN 102865690B CN 201210360538 A CN201210360538 A CN 201210360538A CN 102865690 B CN102865690 B CN 102865690B
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- evaporimeter
- import
- condenser
- oil separator
- refrigerant
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Abstract
The invention discloses a kind of water cooling unit, comprise and there is condenser water inlet, leaving condenser water mouth, the condenser of the import of condenser refrigerant and condenser refrigerant exit, there is evaporimeter water inlet, evaporimeter delivery port, the evaporimeter of the import of evaporimeter refrigerant and evaporimeter refrigerant exit, the gs-oil separator with gs-oil separator import and gs-oil separator outlet and the air compressor be arranged between described evaporimeter refrigerant exit and described gs-oil separator import, described gs-oil separator is provided with fluid outlet, described fluid outlet is communicated with the lubrication hydraulic fluid port of described air compressor, described evaporimeter is provided with temperature sensor, pressure sensor is provided with between the outlet of described air compressor and described gs-oil separator import, described condenser water inlet is connected with cooling water pump.Refrigeration unit of the present invention, the problem that the oil return occurred when which solving air compressor startup is not smooth, improves the operating efficiency of whole water chiller.
Description
Technical field
The present invention relates to technical field of refrigerating devices, relate to a kind of water chiller in particular.
Background technology
In industrial production and daily life, a lot of machinery, office, family all need to use refrigerating plant.
In existing refrigerating plant, much utilize water to carry out the unit cooled, patent publication No. is CN201875994U, publication date is that the Chinese utility model patent of on 06 22nd, 2011 discloses a kind of internal recycle box-type water-cooling group, it comprises a housing, water tank is provided with in described housing, heat exchanger, compression pump and evaporimeter, described water tank is connected with described heat exchanger, described heat exchanger is connected with described compression pump, described compression pump is connected with described evaporimeter, the delivery port of described evaporimeter is provided with a three-way control valve, first valve port of described three-way control valve is connected with described evaporimeter, second valve port of described three control valves is connected with described water tank, 3rd valve port of described three-way control valve is connected with outlet pipe, described 3rd valve port place is provided with a temperature sensor, described temperature sensor, three-way control valve is connected with a PLC.This water chiller can make chilled water flow be back in water tank to circulate, and such compression pump would not quit work, and therefore leaving water temperature does not have large change, thus can ensure the normal work of target device.Housing adopts PP anticorrosive, high temperature soda acid volatilization gas can be prevented the corrosion of housing, extend the service life of this internal recycle box-type water-cooling group.But, it also has weak point: in existing water chiller work, inefficiency, when air compressor (compression pump) starts, the phenomenon that the oil return of frequent generation air-compressor lubricating oil is not smooth, have a strong impact on the normal work of air compressor, also reduced the service life of air compressor, reduce the operating efficiency of whole water chiller.
Summary of the invention
The object of the invention is for the deficiencies in the prior art part, a kind of water cooling unit is provided, the problem that the oil return occurred when which solving air compressor startup is not smooth, improve the operating efficiency of whole water chiller.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: water cooling unit, comprise and there is condenser water inlet, leaving condenser water mouth, the condenser of the import of condenser refrigerant and condenser refrigerant exit, there is evaporimeter water inlet, evaporimeter delivery port, the evaporimeter of the import of evaporimeter refrigerant and evaporimeter refrigerant exit, the gs-oil separator with gs-oil separator import and gs-oil separator outlet and the air compressor be arranged between described evaporimeter refrigerant exit and described gs-oil separator import, described gs-oil separator is provided with fluid outlet, described fluid outlet is communicated with the lubrication hydraulic fluid port of described air compressor, described evaporimeter is provided with temperature sensor, pressure sensor is provided with between the outlet of described air compressor and described gs-oil separator import, described condenser water inlet is connected with cooling water pump.
The applicant finds, the problem that air compressor oil return is in the past not smooth, because time the pressure reduction between condenser and evaporimeter is too small, cooling water pump just starts, cause the not smooth of air compressor lubricating oil return, because the lubricating oil wanting to make gs-oil separator separate returns air compressor smoothly, just need to set up enough pressure, therefore, water chiller of the present invention, be provided with temperature sensor on an evaporator, simultaneously, pressure sensor is provided with between the outlet and gs-oil separator import of air compressor, the temperature value of temperature sensor is converted into force value by it, be that the force value of pressure sensor contrasts, only have when both pressure reduction reaches setting value time, cooling water pump just starts work, this addresses the problem the problem that air compressor oil return is in the past not smooth, improve the operating efficiency of water chiller.
As preferably, between described condenser refrigerant exit and the import of described evaporimeter refrigerant, be provided with electric expansion valve; Described evaporimeter water inlet and/or described evaporimeter delivery port are provided with the first temp probe.
Water chiller of the present invention, electric expansion valve is provided with between condenser refrigerant exit and the import of evaporimeter refrigerant, utilize electric expansion valve to control the amount of the refrigerant entering evaporimeter from condenser, pressure sensor and outlet temperature sensor is provided with between the outlet and described gs-oil separator import of air compressor, utilize pressure sensor to monitor the pressure from compressor outlet refrigerant steam out, and then convert this force value to temperature value, utilize outlet temperature sensor to monitor the temperature from compressor outlet refrigerant steam out, calculate both differences, when calculate difference (degree of superheat) large time, electric expansion valve opening becomes large, refrigerant quantitative change is many, it is large that air compressor sucks quantitative change, refrigerating capacity grow, otherwise, then electric expansion valve openings get smaller, refrigerating capacity reduces, so repeatedly, whole water cooling plant can either be satisfied the demands, do not waste energy again, we find, from the refrigerant steam that air compressor exports out, if the liquid refrigerants wherein contained is more, then the degree of superheat is less, otherwise, then larger.
As preferably, described condenser water inlet and/or described leaving condenser water mouth are provided with the second temp probe.
Second temp probe, can assist the first temp probe work, monitors, and then ensure the normal work of whole cooling unit to the temperature of the water of turnover condenser.
As preferably, the import of described air compressor is provided with air-breathing protector, and outlet is provided with air outlet temperature sensor.
Air-breathing protector, air outlet temperature sensor, can detect the air pressure of turnover air compressor, in time exceeding setting range, send warning, even shut down.
As preferably, between described refrigerant filter and described electric expansion valve, be provided with liquid-sighting glass.
The existence of liquid-sighting glass, can observe the situation of the refrigerant flowing into electric expansion valve from refrigerant filter, Timeliness coverage, discharge fault or hidden danger.
As preferably, between described evaporimeter refrigerant exit and described air compressor import, be provided with boost gauge and low pressure controller.
The observation gas pressure that boost gauge can make operator real-time, low pressure controller is then used for controlling admission pressure.
As preferably, between described gs-oil separator import and the outlet of described air compressor, be provided with outlet pressure table and dual pressure controller.
Outlet pressure table can the real-time monitored force value of giving vent to anger, and dual pressure controller is then used for controlling the size of outlet pressure.
As preferably, described evaporimeter is provided with low evaporating temperature protector, described evaporimeter is provided with low evaporating temperature protector.
The setting of this low evaporating temperature protector, can monitor the temperature of evaporimeter, prevents its temperature too low, causes damage, can give a warning when temperature is too low.
As preferably, between described condenser refrigerant exit and the import of described evaporimeter refrigerant, be provided with refrigerant filter.
Refrigerant filter can filter the refrigerant of process, prevents blocking evaporimeter and other operation elements, and then ensures that whole water chiller normally works, and reduces fault rate, improves the operating efficiency of whole water chiller.
Fluid exports the lubricating oil separated by gs-oil separator and is again drained in air compressor, recycles.
As preferably, be provided with control valve and look oily mirror between described fluid outlet and the lubrication hydraulic fluid port of described air compressor.
Governor valve control connects the opening and closing of oil circuit, is then used for observing the mobility status of the lubricating oil be separated depending on oily mirror.
Beneficial effect of the present invention is:
Water chiller of the present invention, by being provided with temperature sensor on an evaporator, arranging pressure sensor between the outlet and gs-oil separator import of air compressor, when pressure difference value between condenser and evaporimeter reaches a setting pressure reduction, just send instruction to connect and start cooling water pump and solve the problem that time air compressor starts, the oil return that occurs is not smooth, improve the operating efficiency of whole water chiller.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation of one embodiment of the invention.
In figure:
1-condenser, 101-condenser water inlet, 102-leaving condenser water mouth, the import of 103-condenser refrigerant, 104-condenser refrigerant exit;
2-evaporimeter, 201-evaporimeter water inlet, 202-evaporimeter delivery port, the import of 203-evaporimeter refrigerant, 204-evaporimeter refrigerant exit;
3-gs-oil separator; The import of 301-gs-oil separator, 302-gs-oil separator exports, and 303-fluid exports;
4-air compressor, 401-import, 402-exports, and 403-lubricates hydraulic fluid port;
5-electric expansion valve;
6-refrigerant filter;
7-first temp probe;
8-second temp probe;
9-liquid-sighting glass;
10-boost gauge;
11-low pressure controller;
12-outlet pressure table;
13-dual pressure controller;
The low evaporating temperature protector of 14-;
15-control valve;
16-looks oily mirror;
17-air-breathing protector;
18-air outlet temperature sensor;
19-pressure sensor;
20-cooling water pump;
21-temperature sensor.
Detailed description of the invention
The following stated is only preferred embodiment of the present invention, not limits scope of the present invention.
Embodiment, see accompanying drawing 1, water cooling unit, comprise and there is condenser water inlet 101, leaving condenser water mouth 102, the condenser 1 of condenser refrigerant import 103 and condenser refrigerant exit 104, there is evaporimeter water inlet 201, evaporimeter delivery port 202, the evaporimeter 2 of evaporimeter refrigerant import 203 and evaporimeter refrigerant exit 204, the gs-oil separator 3 with gs-oil separator import 301 and gs-oil separator outlet 302 and the air compressor 4 be arranged between evaporimeter refrigerant exit 204 and gs-oil separator import 301, air compressor 4 has import 401, outlet 402 and lubrication hydraulic fluid port 403, the import of air compressor is communicated with the evaporimeter refrigerant exit 204 of evaporimeter 2, outlet is communicated with the gs-oil separator import 301 of gs-oil separator 3, the gs-oil separator outlet 302 of gs-oil separator 3 is communicated with condenser refrigerant import 103, gs-oil separator 3 is provided with fluid outlet 303, fluid outlet 303 is communicated with the lubrication hydraulic fluid port of air compressor 4, be provided with control valve 15 between fluid outlet 303 and the lubrication hydraulic fluid port of air compressor 4 and look oily mirror 16, control valve 15 adopts common manual ball valve, evaporimeter 2 is provided with temperature sensor 21, pressure sensor 19 is provided with between the outlet of air compressor 4 and gs-oil separator import 301, described condenser water inlet 101 is connected with cooling water pump 20.
Meanwhile, between condenser refrigerant exit 104 and evaporimeter refrigerant import 203, electric expansion valve 5 is provided with; Be used for controlling the cold medium flux between condenser and evaporimeter, evaporimeter water inlet 201 and evaporimeter delivery port 202 are provided with the first temp probe 7, certainly, also in evaporimeter water inlet 201 and evaporimeter delivery port 202 one the first temp probe 7 can be installed, just effect is good not, and the first temp probe can adopt temperature sensor or temperature switch, simultaneously, between condenser refrigerant exit 104 and evaporimeter refrigerant import 203, be provided with refrigerant filter 6, the refrigerant of process is filtered.Condenser water inlet 101 and leaving condenser water mouth 102 are all provided with the second temp probe 8, and same, the second temp probe 8 can adopt temperature sensor or temperature switch etc.
The import of air compressor 4 is provided with air-breathing protector 17, and outlet is provided with air outlet temperature sensor 18, and air-breathing protector 17, air outlet temperature sensor 18 can adopt baroswitch or baroceptor.
Liquid-sighting glass 9 is provided with between refrigerant filter 6 and electric expansion valve 5, boost gauge 10 and low pressure controller 11 is provided with between evaporimeter refrigerant exit 204 and air compressor 4 import, outlet pressure table 12 and dual pressure controller 13 is provided with between gs-oil separator import 301 and air compressor 4 export, boost gauge 10 and outlet pressure table 12, select as required, because air inlet and the force value of giving vent to anger are different, when all selection pressure tables, note its range, low pressure controller 11 and dual pressure controller can selection pressure sensors.
Evaporimeter 2 is provided with low evaporating temperature protector 14, general, low evaporating temperature protector 14 adopts temperature sensor or temperature detect switch (TDS).
More than illustrate it is only explanation of the invention, those of ordinary skill in the art's can completely is made to implement this programme, but be not limitation of the present invention, those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this description, and these are all not creative amendments.As long as but be all subject to the protection of Patent Law in right of the present invention.
Claims (4)
1. a water chiller, comprise and there is condenser water inlet (101), leaving condenser water mouth (102), the condenser (1) of condenser refrigerant import (103) and condenser refrigerant exit (104), there is evaporimeter water inlet (201), evaporimeter delivery port (202), the evaporimeter (2) of evaporimeter refrigerant import (203) and evaporimeter refrigerant exit (204), the gs-oil separator (3) with gs-oil separator import (301) and gs-oil separator outlet (302) and the air compressor (4) be arranged between described evaporimeter refrigerant exit (204) and described gs-oil separator import (301), described gs-oil separator (3) is provided with fluid outlet (303), described fluid outlet (303) is communicated with the lubrication hydraulic fluid port of described air compressor (4), it is characterized in that: described evaporimeter (2) is provided with temperature sensor (21), pressure sensor (19) is provided with between the outlet of described air compressor (4) and described gs-oil separator import (301), described condenser water inlet (101) is connected with cooling water pump (20), the temperature value of described temperature sensor (21) is converted into force value, then contrasts with the force value of described pressure sensor (19), only have when both pressure reduction reaches setting value time, described cooling water pump (20) just starts work, electric expansion valve (5) is provided with between described condenser refrigerant exit (104) and described evaporimeter refrigerant import (203), described evaporimeter water inlet (201) and/or described evaporimeter delivery port (202) are provided with the first temp probe (7), described condenser water inlet (101) and/or described leaving condenser water mouth (102) are provided with the second temp probe (8), the import of described air compressor (4) is provided with air-breathing protector (17), and outlet is provided with air outlet temperature sensor (18), outlet pressure table (12) and dual pressure controller (13) is provided with between described gs-oil separator import (301) and described air compressor (4) outlet, described evaporimeter (2) is provided with low evaporating temperature protector (14), refrigerant filter (6) is provided with between described condenser refrigerant exit (104) and described evaporimeter refrigerant import (203).
2. a kind of water chiller according to claim 1, is characterized in that: be provided with liquid-sighting glass (9) between described refrigerant filter (6) and described electric expansion valve (5).
3. a kind of water chiller according to claim 2, is characterized in that: be provided with boost gauge (10) and low pressure controller (11) between described evaporimeter refrigerant exit (204) and described air compressor (4) import.
4. a kind of water chiller according to claim 3, is characterized in that: be provided with control valve (15) and look oily mirror (16) between described fluid outlet (303) and the lubrication hydraulic fluid port of described air compressor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360538.4A CN102865690B (en) | 2012-09-26 | 2012-09-26 | Water cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210360538.4A CN102865690B (en) | 2012-09-26 | 2012-09-26 | Water cooling unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102865690A CN102865690A (en) | 2013-01-09 |
| CN102865690B true CN102865690B (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210360538.4A Active CN102865690B (en) | 2012-09-26 | 2012-09-26 | Water cooling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865690B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225340A (en) * | 2016-07-25 | 2016-12-14 | 信易电热机械有限公司 | A kind of refrigeration system |
| CN109163479A (en) * | 2018-10-18 | 2019-01-08 | 中国科学院广州能源研究所 | A kind of automatic oil return gas engine heat pump system |
Citations (7)
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|---|---|---|---|---|
| US5347821A (en) * | 1993-07-23 | 1994-09-20 | American Standard Inc. | Apparatus and method of oil charge loss protection for compressors |
| JP2003322421A (en) * | 2002-05-02 | 2003-11-14 | Chubu Electric Power Co Inc | High pressure side pressure control method in supercritical vapor compression circuit and circuit device |
| CN1463352A (en) * | 2001-04-20 | 2003-12-24 | 约克国际公司 | Method and appts. for controlling removal of heat from condenser in refrigeration system |
| JP2006275440A (en) * | 2005-03-30 | 2006-10-12 | Mitsubishi Electric Corp | Refrigerating device |
| JP2010169286A (en) * | 2009-01-20 | 2010-08-05 | Hitachi Appliances Inc | Refrigerating device |
| CN201611190U (en) * | 2010-01-05 | 2010-10-20 | 浙江盾安人工环境设备股份有限公司 | Nuclear plant safety standard cooling-water machine set |
| CN202813860U (en) * | 2012-09-26 | 2013-03-20 | 美意(浙江)空调设备有限公司 | Novel water cooling unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0828971A (en) * | 1994-07-14 | 1996-02-02 | Hitachi Ltd | Controlling method of air conditioner |
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2012
- 2012-09-26 CN CN201210360538.4A patent/CN102865690B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5347821A (en) * | 1993-07-23 | 1994-09-20 | American Standard Inc. | Apparatus and method of oil charge loss protection for compressors |
| CN1463352A (en) * | 2001-04-20 | 2003-12-24 | 约克国际公司 | Method and appts. for controlling removal of heat from condenser in refrigeration system |
| JP2003322421A (en) * | 2002-05-02 | 2003-11-14 | Chubu Electric Power Co Inc | High pressure side pressure control method in supercritical vapor compression circuit and circuit device |
| JP2006275440A (en) * | 2005-03-30 | 2006-10-12 | Mitsubishi Electric Corp | Refrigerating device |
| JP2010169286A (en) * | 2009-01-20 | 2010-08-05 | Hitachi Appliances Inc | Refrigerating device |
| CN201611190U (en) * | 2010-01-05 | 2010-10-20 | 浙江盾安人工环境设备股份有限公司 | Nuclear plant safety standard cooling-water machine set |
| CN202813860U (en) * | 2012-09-26 | 2013-03-20 | 美意(浙江)空调设备有限公司 | Novel water cooling unit |
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| Publication number | Publication date |
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| CN102865690A (en) | 2013-01-09 |
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