CN201954826U - Air-cooled cold water set - Google Patents
Air-cooled cold water set Download PDFInfo
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- CN201954826U CN201954826U CN2010206604040U CN201020660404U CN201954826U CN 201954826 U CN201954826 U CN 201954826U CN 2010206604040 U CN2010206604040 U CN 2010206604040U CN 201020660404 U CN201020660404 U CN 201020660404U CN 201954826 U CN201954826 U CN 201954826U
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- condenser
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- solenoid valve
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Abstract
The utility model relates to the technical field of refrigeration equipments, in particular to a air-cooled cold water set and a control method thereof. A condensation module is arranged between the compressor and the reservoir of the air-cooled cold water set. The condensation module comprises one or more first type condenser modules and one or more second type condenser modules. Each of the second condenser modules comprises a second type condenser and a condenser solenoid valve successively connected with each other. The second condenser module is also equipped with a condenser pressure controller for controlling the on-off of the condenser solenoid valve. One end of the condenser pressure controller is connected with the exhaust outlet of a compressor and the other end thereof is connected with the control end of the condenser solenoid valve so as to control the on-off of the condenser solenoid valve. During the operation of the air-cooled cold water set, the on-off of the air intake solenoid valve and the start-stop of the air blower are controlled by the pressure controller so as to realize the grading supply of the heat exchange area and the cooling air amount. Therefore, the system pressure is stabilized within a reasonable range so as to ensure the normal operation of the set.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, particularly a kind of wind-cooled cold-water unit.
Background technology
The wind-cooled cold-water unit is the cooling device that is widely used in industrial circle, and the refrigeration requirement of industrial nature often has the characteristics of the property whole year, but when the north of china in winter environment temperature is very low, refrigeration system can't form effective pressure reduction, even the pressure inversion phenomenon that evaporating temperature is higher than condensation temperature appears, unit can start-up loading move with normal, thereby has restricted the air-cooled unit scope of application.
The utility model content
Goal of the invention of the present utility model is to provide a kind of wind-cooled cold-water unit, can't form the technical problem that effective pressure reduction causes unit normally to move to solve the prior art handpiece Water Chilling Units under the temperature of cold.
In order to realize goal of the invention of the present utility model, the technical scheme of employing is as follows:
A kind of wind-cooled cold-water unit, described handpiece Water Chilling Units comprises the compressor that connects successively, condensation module, reservoir, expansion valve and evaporimeter, evaporimeter and compressor are connected to form closed circuit, be provided with condensation module between described compressor and the reservoir, condensation module comprises one or more first kind condensation submodules and one or more second class condensation submodule, each first kind condensation submodule comprises first kind condenser, first kind condenser one end is connected with reservoir, the other end be connected with evaporimeter, each second class condensation submodule comprises the second class condenser and the condenser magnetic valve that connects successively, the second class condenser, one end is connected with reservoir, the other end is connected with evaporimeter by the condenser magnetic valve, the second class condensation submodule also is provided with the condenser pressure controller that is used to control condenser magnetic valve break-make, condenser pressure controller one end is connected with exhaust outlet of compressor, the other end is connected with the control end of condenser magnetic valve, the break-make of control condenser magnetic valve.
As a kind of preferred version, described condensation submodule also comprises blower pressure controller and blower fan, and controller of fan one end is connected with exhaust outlet of compressor, and the other end is connected with blower fan, the startup of control blower fan.
As further preferred version, the oil inlet and outlet of described compressor is serially connected with oil pump, oil pump also is connected to the pressure fuel pump controller that is used to control pump start or stops, and the control output end of pressure fuel pump controller is connected with oil pump, and signal input part is connected with the compressor import and export.
As further preferred version again, the oil inlet and outlet of described compressor also is connected to check valve in the same way.
As a kind of preferred version, also be provided with bypass solenoid valve between evaporimeter and the exhaust outlet of compressor and be used to control the bypass pressure controller that bypass solenoid valve starts or stops, the input of bypass pressure controller is connected with the compressor low-pressure end, the break-make of output control bypass solenoid valve, bypass solenoid valve one end is connected with evaporimeter, and the other end is connected with first kind condensation submodule.
Second goal of the invention of the present utility model is to provide a kind of wind-cooled cold-water unit control method, to use the wind-cooled cold-water unit that first goal of the invention of the present utility model is provided.
The relative prior art of the utility model originally has following characteristics:
1, extended the scope of application of air-cooled unit.When environment temperature was very low, outdoor wind-cooled cold-water unit condensing pressure was very low, and unit can not normally move.This case guarantees the required loading oil pressure of compressor by external oil pump feed, makes unit normally to start and to load; Behind the unit operation, to control of air inlet electromagnetic valve switch and blower fan start and stop control, realize classification supply heat exchange area and cooling air quantity, thereby make system pressure be stable at zone of reasonableness, guarantee that unit normally moves by pressure controller.According to this case, the wind-cooled cold-water unit can use lack of water such as North China in the China north and the Northwest and winter cold area.
2, can realize the automation control of unit.The related parts such as oil pump, magnetic valve and pressure controller of this case can be completely achieved automatic control, and the system that need not manually to carry out is switched.
3, overcome water-cooling system freezing hidden danger in winter.The cooling system of water-cooled handpiece Water Chilling Units is under unified central planning to be installed in outdoorly, when using winter, will note the icing hidden danger of cooling system constantly, and air-cooled unit does not have this problem fully owing to adopt the control cooling.
Description of drawings
Fig. 1 is the wind-cooled cold-water machine set system figure of the utility model embodiment.
The specific embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, system is mainly by constituting with lower member: compressor 1, finned condensation module, reservoir 3, expansion valve 4, evaporimeter 5, blower fan 9, oil pump 7, magnetic valve 8, pressure controller 10,11,12.Compressor, finned condensation module, reservoir, expansion valve and evaporimeter are in turn connected to form refrigeration system; Oil inlet and outlet at compressor is provided with oil pump 7, and before and after the oil pump and connect an individual event valve in the same way, and compressor is provided with differential pressure controller 12 between importing and exporting, the start and stop of oil pump are controlled by differential pressure controller; And finned condensation module is divided into several groups of 2-1,2-2,2-3 as required, be provided with air inlet magnetic valve 8-1,8-2 at the air inlet place of every group of fin, every group of blower fan 9-1,9-2,9-3 and each air inlet magnetic valve are all established corresponding with it pressure controller 10-1,10-2,10-3 and 10-4,10-5, and blower fan and air inlet magnetic valve are by each self-corresponding pressure controller control; Be provided with bypass solenoid valve (8-3) between exhaust outlet of compressor and evaporator air inlet, be provided with pressure controller 11 on compressor suction duct, the switch of bypass solenoid valve is by pressure controller 11 controls.
Industrial wind-cooled cold-water unit also will provide cold to production line in the winter time, but because outdoor environment temperature very low (as: 20 ℃), and the situation that evaporating pressure is higher than condensing pressure this moment often appears in indoor cooling water higher relatively (as: 7 ℃).
Can start oil pump according to the signal of differential pressure controller when 1, the air cooling system of this case is started shooting, when height pressure reduction is lower than setting value (as: 4kg/c ㎡), system starts compressor and oil pump simultaneously, and the loading that can be used for compressor through the hydraulic oil after the oil pump pressurization reaches lubricated.
2, in the firm operation phase of system; the pressure of system also cannot be set up fast, makes low pressure may be lower than very much the low-voltage variation value of system (as: being lower than 2 kg/c ㎡), and system will trigger bypass solenoid valve; by-passing part pressure is to evaporimeter, thus elevator system low pressure.
3, behind the unit starting, because cooling effect is very good, condensing pressure can be very low; When condensing pressure is lower than pressure controller when setting value of control blower fan, system can be according to the difference of setting value and the condensation fan of stopping using one by one.And the minimizing of air quantity makes condensing pressure be risen, and is stabilized on the setting value up to condensing pressure.
4, in the blower fan of stopping using, lower condensing pressure also can trigger control air inlet magnetic valve, system can progressively close the air inlet magnetic valve according to the difference of setting value, thereby classification reduces the heat exchange area of system, and the minimizing of air quantity makes condensing pressure be risen, and is stabilized on the setting value up to condensing pressure.
Reduce systematic air flow and heat exchange area by classification, the pressure of system can slowly promote, and is constant under the pressure of a not permission up to system, thereby guarantee security of system stable operation.
Embodiment described above is illustrative and not restrictive, and under the situation that does not break away from spirit and scope of the present utility model, all variations and modification are all within scope of the present utility model.
Claims (5)
1. wind-cooled cold-water unit, it is characterized in that, described handpiece Water Chilling Units comprises the compressor (1) that connects successively, condensation module, reservoir (3), expansion valve (4) and evaporimeter (5), evaporimeter (5) is connected to form closed circuit with compressor (1), be provided with condensation module between described compressor (1) and the reservoir (3), condensation module comprises one or more first kind condensation submodules and one or more second class condensation submodule, each first kind condensation submodule comprises first kind condenser, first kind condenser one end is connected with reservoir (3), the other end be connected with evaporimeter (5), each second class condensation submodule comprises the second class condenser and the condenser magnetic valve that connects successively, the second class condenser, one end is connected with reservoir (3), the other end is connected with evaporimeter (5) by the condenser magnetic valve, the second class condensation submodule also is provided with the condenser pressure controller that is used to control condenser magnetic valve break-make, condenser pressure controller one end is connected with compressor (1) exhaust outlet, the other end is connected with the control end of condenser magnetic valve, the break-make of control condenser magnetic valve.
2. handpiece Water Chilling Units according to claim 1 is characterized in that, described condensation submodule also comprises blower pressure controller and blower fan, and controller of fan one end is connected with compressor (1) exhaust outlet, and the other end is connected with blower fan, the startup of control blower fan.
3. handpiece Water Chilling Units according to claim 1 and 2, it is characterized in that, the oil inlet and outlet of described compressor (1) is serially connected with oil pump (7), oil pump (7) also is connected to the pressure fuel pump controller (12) that is used to control pump start or stops, the control output end of pressure fuel pump controller is connected with oil pump, and signal input part is connected with compressor (1) import and export.
4. handpiece Water Chilling Units according to claim 3 is characterized in that, the oil inlet and outlet of described compressor (1) also is connected to check valve in the same way.
5. handpiece Water Chilling Units according to claim 1, it is characterized in that, also be provided with bypass solenoid valve and be used to control the bypass pressure controller that bypass solenoid valve starts or stops between evaporimeter (5) and compressor (1) exhaust outlet, the input of bypass pressure controller is connected with compressor (1) low-pressure end, the break-make of output control bypass solenoid valve, bypass solenoid valve one end is connected with evaporimeter, and the other end is connected with first kind condensation submodule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206604040U CN201954826U (en) | 2010-12-15 | 2010-12-15 | Air-cooled cold water set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206604040U CN201954826U (en) | 2010-12-15 | 2010-12-15 | Air-cooled cold water set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954826U true CN201954826U (en) | 2011-08-31 |
Family
ID=44498936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206604040U Expired - Lifetime CN201954826U (en) | 2010-12-15 | 2010-12-15 | Air-cooled cold water set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954826U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003822A (en) * | 2010-12-15 | 2011-04-06 | 广州恒星冷冻机械制造有限公司 | Air-cooling cold water unit and control method thereof |
| CN102889706A (en) * | 2012-10-22 | 2013-01-23 | 合肥天鹅制冷科技有限公司 | Compression refrigeration condensation system with low-temperature startup and low-temperature operation |
| CN103983062A (en) * | 2014-05-28 | 2014-08-13 | 广东申菱空调设备有限公司 | Wide temperature type air-cooled chiller unit and condensing pressure control method thereof |
| CN113959129A (en) * | 2021-10-08 | 2022-01-21 | 青岛海尔空调电子有限公司 | Control method and device for refrigeration equipment, refrigeration equipment and storage medium |
| EP3887733A4 (en) * | 2018-11-28 | 2022-08-24 | Evapco, INC. | Method and apparatus for staged startup of air-cooled low charged packaged ammonia refrigeration system |
-
2010
- 2010-12-15 CN CN2010206604040U patent/CN201954826U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003822A (en) * | 2010-12-15 | 2011-04-06 | 广州恒星冷冻机械制造有限公司 | Air-cooling cold water unit and control method thereof |
| CN102003822B (en) * | 2010-12-15 | 2013-07-17 | 广州恒星冷冻机械制造有限公司 | Air-cooling cold water unit and control method thereof |
| CN102889706A (en) * | 2012-10-22 | 2013-01-23 | 合肥天鹅制冷科技有限公司 | Compression refrigeration condensation system with low-temperature startup and low-temperature operation |
| CN102889706B (en) * | 2012-10-22 | 2015-01-28 | 合肥天鹅制冷科技有限公司 | Compression refrigeration condensation system with low-temperature startup and low-temperature operation |
| CN103983062A (en) * | 2014-05-28 | 2014-08-13 | 广东申菱空调设备有限公司 | Wide temperature type air-cooled chiller unit and condensing pressure control method thereof |
| CN103983062B (en) * | 2014-05-28 | 2016-04-06 | 广东申菱环境系统股份有限公司 | A kind of wide temperature range type cooling by wind and condensation pressure control method thereof |
| EP3887733A4 (en) * | 2018-11-28 | 2022-08-24 | Evapco, INC. | Method and apparatus for staged startup of air-cooled low charged packaged ammonia refrigeration system |
| CN113959129A (en) * | 2021-10-08 | 2022-01-21 | 青岛海尔空调电子有限公司 | Control method and device for refrigeration equipment, refrigeration equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110831 Effective date of abandoning: 20130717 |
|
| RGAV | Abandon patent right to avoid regrant |