CN211345908U - Air-cooled water chilling unit with adjustable water outlet temperature - Google Patents
Air-cooled water chilling unit with adjustable water outlet temperature Download PDFInfo
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- CN211345908U CN211345908U CN201921198174.8U CN201921198174U CN211345908U CN 211345908 U CN211345908 U CN 211345908U CN 201921198174 U CN201921198174 U CN 201921198174U CN 211345908 U CN211345908 U CN 211345908U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses a go out water temperature adjustable air-cooled cooling water set, concretely relates to air-cooled cooling water set field, including plate evaporator, plate evaporator's output is equipped with vapour and liquid separator, and vapour and liquid separator's input and plate evaporator output pass through pipeline fixed connection, the middle part of pipeline is equipped with superheat degree controller and low pressure sensor respectively between plate evaporator and the vapour and liquid separator, vapour and liquid separator's output is equipped with half scroll compressor. The utility model discloses an electronic expansion valve cooperation low pressure sensor and superheat degree controller automatically regulated refrigerant get into electronic expansion valve's flow and half scroll compressor refrigerating capacity phase-match, and the evaporating temperature of automatically regulated unit is in certain within range, and water flow control valve realizes that unit leaving water temperature is from high temperature to low temperature automatically adjustable according to the size of leaving water temperature sensor automatically regulated refrigerated water outflow.
Description
Technical Field
The utility model relates to an air-cooled cooling water set field, more specifically says, the utility model relates to an air-cooled cooling water set of play water temperature adjustable.
Background
The water outlet temperature of a common water chilling unit is determined by an evaporator, a condenser and an evaporation temperature, the water outlet temperature is higher than the evaporation temperature by 5 ℃, and the water outlet temperature of chilled water is required to be automatically adjusted between high temperature and low temperature due to the requirement of a special process flow so as to meet the cooling requirement of the process.
At present, the temperature of the outlet water of the water chilling unit is automatically adjustable between high temperature and low temperature in China, and two water chilling units are mostly adopted, wherein one water chilling unit provides high-temperature chilled water, and the other water chilling unit provides low-temperature chilled water to meet the cooling requirement of the process.
However, in the prior art, the initial equipment investment is high during actual use, the accuracy of the outlet water temperature sometimes cannot meet the requirement of process cooling, and the temperature cannot be automatically adjusted.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides an go out water temperature adjustable air-cooled cooling water set, the number of stations and the size of the amount of wind that drop into variable speed axial fan automatically through high pressure sensor and fan speed regulator and fan control module, guarantee unit condensation pressure at certain setting range, electronic expansion valve passes through low pressure sensor and superheat degree controller automatically regulated refrigerant and gets into electronic expansion valve's flow and half scroll compressor refrigeration volume phase-match, the evaporating temperature of automatically regulated unit is in certain within range, water flow control valve is according to the size of a water temperature sensor automatically regulated refrigerated water outlet flow, it is automatically adjustable from high temperature to low temperature to realize unit leaving water temperature, with the problem of proposing in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an air-cooled water chilling unit with adjustable water outlet temperature comprises a plate-type evaporator, wherein a vapor-liquid separator is arranged at the output end of the plate-type evaporator, the input end of the vapor-liquid separator is fixedly connected with the output end of the plate-type evaporator through a pipeline, a superheat degree controller and a low-pressure sensor are respectively arranged in the middle of the pipeline between the plate-type evaporator and the vapor-liquid separator, a half-sealed scroll compressor is arranged at the output end of the vapor-liquid separator, the input end of the half-sealed scroll compressor is fixedly connected with the output end of the vapor-liquid separator through a pipeline, an economizer and an air-cooled condenser are respectively arranged at the output end of the half-sealed scroll compressor, the input end of the economizer and the air-cooled condenser is fixedly connected with the output end of the half-sealed scroll compressor through a pipeline, a liquid reservoir is fixedly connected with the output, the output end of the economizer is fixedly connected with the input end of the plate-type evaporator through a pipeline.
In a preferred embodiment, the liquid inlet of the plate-type evaporator is fixedly connected with a coolant inlet pipe, the liquid outlet of the plate-type evaporator is fixedly connected with a coolant outlet pipe, a water inlet temperature sensor is arranged in the middle of the coolant inlet pipe, and an anti-freezing switch, a water flow regulating valve and a water outlet temperature sensor are respectively arranged in the middle of the coolant outlet pipe.
In a preferred embodiment, an electronic expansion valve is arranged in the middle of a pipeline between the plate-type evaporator and the economizer, the electronic expansion valve is electrically connected with the connecting end of the superheat degree controller, a low-pressure gauge is arranged in the middle of a pipeline between the vapor-liquid separator and the semi-sealed scroll compressor, an economizer expansion valve is arranged at one end of the economizer through a pipeline, and the pipeline where the economizer expansion valve is located is communicated with the pipeline between the plate-type evaporator and the economizer.
In a preferred embodiment, a pressure controller, a high-pressure gauge and an oil separator are arranged in the middle of a pipeline between the semi-sealed scroll compressor and the air-cooled condenser, the pressure controller and the semi-sealed scroll compressor are connected in parallel in the middle of the pipeline, the output end of the oil separator is fixedly connected with a pipeline between the vapor-liquid separator and the semi-sealed scroll compressor through the pipeline, and the middle of the pipeline, which is communicated with the pipeline between the vapor-liquid separator and the semi-sealed scroll compressor, of the oil separator is respectively provided with an oil return ball valve and an oil return sight glass.
In a preferred embodiment, the pipeline where the oil return ball valve and the oil return sight glass are located is fixedly connected to the middle of the pipeline where the low-pressure meter and the pressure controller are located.
In a preferred embodiment, a high-pressure sensor is arranged in the middle of a pipeline between the oil separator and the air-cooled condenser, a variable-speed axial flow fan is arranged inside the air-cooled condenser, and the variable-speed axial flow fan is electrically connected with the connecting end of the high-pressure sensor.
In a preferred embodiment, the middle part of the pipeline between the liquid receiver and the economizer is respectively provided with a dry filter, a sight glass, a solenoid valve and a ball valve, and the economizer and the semi-closed scroll compressor are bidirectionally connected through the pipeline.
In a preferred embodiment, the pipeline between the plate evaporator and the vapor-liquid separator is a low-pressure pipe, and the pipeline between the oil separator and the air-cooled condenser is a high-pressure pipe.
In a preferred embodiment, the plate evaporator is provided with a glycol aqueous solution in a secondary refrigerant inlet pipe and a secondary refrigerant outlet pipe, and the air-cooled condenser comprises a fan governor and a fan control module.
The utility model discloses a technological effect and advantage:
through the automatic number of dropping into variable speed axial fan of high pressure sensor and fan speed regulator and fan control module and the size of the amount of wind, guarantee unit condensation pressure in certain setting range, electronic expansion valve passes through low pressure sensor and superheat degree controller automatically regulated refrigerant and gets into electronic expansion valve's flow and half scroll compressor refrigerating capacity phase-match, the evaporating temperature of automatically regulated unit is in certain within range, water flow control valve is according to the size of outlet water temperature sensor automatically regulated refrigerated water outlet flow, it is adjustable from high temperature to low temperature automatically to realize unit outlet water temperature, compare with prior art, the utility model discloses can automatically regulated temperature.
Drawings
Fig. 1 is a view of the overall structure of the present invention.
The reference signs are: 1. a plate evaporator; 2. an anti-freezing switch; 3. a water flow regulating valve; 4. an inlet water temperature sensor; 5. an effluent temperature sensor; 6. an electronic expansion valve; 7. a superheat controller; 8. a low pressure sensor; 9. a vapor-liquid separator; 10. a low pressure gauge; 11. a pressure controller; 12. a semi-hermetic scroll compressor; 13. an economizer; 14. an economizer expansion valve; 15. a ball valve; 16. an oil return ball valve; 17. an electromagnetic valve; 18. a liquid viewing mirror; 19. a dry filter; 20. a liquid reservoir; 21. an air-cooled condenser; 22. an oil separator; 23. a high pressure gauge; 24. an oil return sight glass; 25. a high pressure sensor; 26. variable speed axial flow fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides an air-cooled chiller with adjustable water outlet temperature, which comprises a plate-type evaporator 1, wherein the output end of the plate-type evaporator 1 is provided with a vapor-liquid separator 9, the input end of the vapor-liquid separator 9 is fixedly connected with the output end of the plate-type evaporator 1 through a pipeline, the middle part of the pipeline between the plate-type evaporator 1 and the vapor-liquid separator 9 is respectively provided with a superheat controller 7 and a low-pressure sensor 8, the output end of the vapor-liquid separator 9 is provided with a semi-sealed scroll compressor 12, the input end of the semi-sealed scroll compressor 12 is fixedly connected with the output end of the vapor-liquid separator 9 through a pipeline, the output end of the semi-sealed scroll compressor 12 is respectively provided with an economizer 13 and an air-cooled condenser 21, the input end of the economizer 13 and the air-cooled condenser 21 is fixedly, the output end of the air-cooled condenser 21 is fixedly connected with a liquid receiver 20 through a pipeline, the output end of the liquid receiver 20 is fixedly connected with the input end of an economizer 13 through a pipeline, and the output end of the economizer 13 is fixedly connected with the input end of a plate-type evaporator 1 through a pipeline;
a liquid inlet of the plate-type evaporator 1 is fixedly connected with a refrigerant inlet pipe, a liquid outlet of the plate-type evaporator 1 is fixedly connected with a refrigerant outlet pipe, a water inlet temperature sensor 4 is arranged in the middle of the refrigerant inlet pipe, and an anti-freezing switch 2, a water flow regulating valve 3 and a water outlet temperature sensor 5 are respectively arranged in the middle of the refrigerant outlet pipe;
an electronic expansion valve 6 is arranged in the middle of a pipeline between the plate-type evaporator 1 and the economizer 13, the electronic expansion valve 6 is electrically connected with a connecting end of a superheat degree controller 7, a low-pressure meter 10 is arranged in the middle of a pipeline between the vapor-liquid separator 9 and the semi-sealed scroll compressor 12, an economizer expansion valve 14 is arranged at one end of the economizer 13 through a pipeline, and the pipeline where the economizer expansion valve 14 is located is communicated with the pipeline between the plate-type evaporator 1 and the economizer 13;
the middle part of a pipeline between the semi-sealed scroll compressor 12 and the air-cooled condenser 21 is provided with a pressure controller 11, a high pressure gauge 23 and an oil separator 22, the pressure controller 11 and the semi-sealed scroll compressor 12 are connected in parallel at the middle part of the pipeline, the output end of the oil separator 22 is fixedly connected with the pipeline between the vapor-liquid separator 9 and the semi-sealed scroll compressor 12 through the pipeline, and the middle parts of the pipelines communicated with the pipeline between the oil separator 22 and the vapor-liquid separator 9 and the semi-sealed scroll compressor 12 are respectively provided with an oil return ball valve 16 and an oil return sight glass 24;
the pipeline where the oil return ball valve 16 and the oil return sight glass 24 are located is fixedly connected to the middle of the pipeline where the low-pressure meter 10 and the pressure controller 11 are located;
a high-pressure sensor 25 is arranged in the middle of a pipeline between the oil separator 22 and the air-cooled condenser 21, a variable-speed axial flow fan 26 is arranged in the air-cooled condenser 21, and the connecting end of the variable-speed axial flow fan 26 and the high-pressure sensor 25 is electrically connected;
the middle part of a pipeline between the liquid receiver 20 and the economizer 13 is respectively provided with a dry filter 19, a liquid sight glass 18, an electromagnetic valve 17 and a ball valve 15, and the economizer 13 is bidirectionally connected with the semi-sealed scroll compressor 12 through the pipeline;
the pipeline between the plate-type evaporator 1 and the vapor-liquid separator 9 is a low-pressure pipe, and the pipeline between the oil separator 22 and the air-cooled condenser 21 is a high-pressure pipe;
the plate-type evaporator 1 is characterized in that a secondary refrigerant inlet pipe and a secondary refrigerant outlet pipe are both provided with ethylene glycol aqueous solution, the air-cooled condenser 21 comprises a fan speed regulator and a fan control module, the plate-type evaporator 1 is QF175L-TWD, the high-pressure sensor 25 is PT5-30M, the low-pressure sensor 8 is PT5-07M, the variable-speed axial flow fan 26 is FB063-6EK.4I.V4P, the fan speed regulator is FSP-180, the fan control module is FSE-02S, the electronic expansion valve 6 is EX5-U21, the superheat controller 7 is EC3-X33, the water outlet temperature sensor 5 is PT100, and the water flow regulating valve 3 is LR24-SRR 229.
The implementation mode is specifically as follows: when in use, the glycol water solution flows into the plate evaporator 1 through the secondary refrigerant inlet pipe of the water flow regulating valve 3 and flows out through the pipeline between the plate evaporator 1 and the vapor-liquid separator 9, so that the glycol water solution sequentially flows through the semi-sealed scroll compressor 12, the oil separator 22, the air-cooled condenser 21, the liquid reservoir 20 and the economizer 13, finally returns to the inside of the plate evaporator 1 through the pipeline between the plate evaporator 1 and the economizer 13 through the economizer 13 and is discharged from the secondary refrigerant outlet pipe of the plate evaporator 1, when the variable-speed axial fan 26 is started, the unit is started after the refrigeration water pump is started, the semi-sealed scroll compressor 12 starts to operate, the unit starts to perform refrigeration operation, the high-pressure sensor 25 automatically inputs the number and the air volume of the variable-speed axial fan 26 through the fan speed regulator and fan control module according to the condensation pressure setting range of the pipeline in the unit, the condensation pressure of the unit is ensured to be within a certain setting range, meanwhile, the electronic expansion valve 6 automatically adjusts the flow of a refrigerant entering the electronic expansion valve 6 through the low-pressure sensor 8 and the superheat controller 7 to be matched with the refrigerating capacity of the semi-sealed scroll compressor 12, the evaporation temperature of the automatic adjustment unit is within a certain range, the purpose of automatically controlling the outlet water temperature is achieved, the water flow adjusting valve 3 automatically adjusts the outlet water flow of chilled water according to the outlet water temperature sensor 5, and the problem that the temperature cannot be automatically adjusted in the prior art is specifically solved by the implementation mode.
The utility model discloses the theory of operation:
referring to the attached figure 1 of the specification, the number of the variable speed axial flow fans 26 and the air volume are automatically input through the high pressure sensor 25, the fan speed regulator and the fan control module, the condensation pressure of the unit is ensured to be within a certain setting range, the electronic expansion valve 6 automatically adjusts the flow of the refrigerant entering the electronic expansion valve 6 through the low pressure sensor 8 and the superheat degree controller 7 to be matched with the refrigerating volume of the semi-sealed scroll compressor 12, the evaporation temperature of the automatic regulating unit is within a certain range, the water flow regulating valve 3 automatically adjusts the outlet water flow of the chilled water according to the outlet water temperature sensor 5, and the outlet water temperature of the unit is automatically adjustable from high temperature to low temperature.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an go out water temperature adjustable forced air cooling water set, includes plate evaporator (1), its characterized in that: the output end of the plate-type evaporator (1) is provided with a gas-liquid separator (9), the input end of the gas-liquid separator (9) is fixedly connected with the output end of the plate-type evaporator (1) through a pipeline, the middle part of the pipeline between the plate-type evaporator (1) and the gas-liquid separator (9) is respectively provided with a superheat degree controller (7) and a low-pressure sensor (8), the output end of the gas-liquid separator (9) is provided with a semi-sealed scroll compressor (12), the input end of the semi-sealed scroll compressor (12) is fixedly connected with the output end of the gas-liquid separator (9) through a pipeline, the output end of the semi-sealed scroll compressor (12) is respectively provided with an economizer (13) and an air-cooled condenser (21), the input end of the economizer (13) and the air-cooled condenser (21) is fixedly connected with the output end of the semi-sealed scroll compressor (12) through a pipeline, and the output, and the output end of the liquid reservoir (20) is fixedly connected with the input end of the economizer (13) through a pipeline, and the output end of the economizer (13) is fixedly connected with the input end of the plate-type evaporator (1) through a pipeline.
2. The air-cooled water chilling unit with adjustable outlet water temperature according to claim 1, characterized in that: the inlet fixed connection of plate-type evaporator (1) has the cryogen to advance the pipe, and the liquid outlet fixed connection of plate-type evaporator (1) has the cryogen exit tube, the middle part that the tube was advanced to the secondary refrigerant is equipped with into water temperature sensor (4), the middle part of secondary refrigerant exit tube is equipped with frostproofing switch (2), water flow control valve (3) and goes out water temperature sensor (5) respectively.
3. The air-cooled water chilling unit with adjustable outlet water temperature according to claim 1, characterized in that: the intermediate part of pipeline is provided with electronic expansion valve (6) between plate evaporator (1) and economic ware (13), electronic expansion valve (6) and the link electric connection of superheat degree controller (7), the middle part of pipeline is provided with low-pressure gauge (10) between vapour and liquid separator (9) and half sealed scroll compressor (12), the one end of economic ware (13) is provided with economic ware expansion valve (14) through the pipeline, and the pipeline that economic ware expansion valve (14) was located is linked together with the pipeline between plate evaporator (1) and economic ware (13).
4. The air-cooled water chilling unit with adjustable outlet water temperature according to claim 1, characterized in that: the middle part of pipeline between half a scroll compressor (12) and air cooled condenser (21) is provided with pressure controller (11), high-pressure gauge (23) and oil separator (22), pressure controller (11) and half a scroll compressor (12) are parallelly connected at the pipeline middle part, pipeline fixed connection between the output of oil separator (22) passes through pipeline and vapour and liquid separator (9) and half a scroll compressor (12), the pipeline middle part that pipeline is linked together between oil separator (22) and vapour and liquid separator (9) and half a scroll compressor (12) is provided with oil return ball valve (16) and oil return sight glass (24) respectively.
5. The air-cooled water chilling unit with adjustable outlet water temperature according to claim 4, characterized in that: and the pipeline where the oil return ball valve (16) and the oil return sight glass (24) are located is fixedly connected to the middle parts of the pipeline where the low-pressure meter (10) and the pressure controller (11) are located.
6. The air-cooled water chilling unit with adjustable outlet water temperature according to claim 4, characterized in that: the oil separator is characterized in that a high-pressure sensor (25) is arranged in the middle of a pipeline between the oil separator (22) and the air-cooled condenser (21), a variable-speed axial flow fan (26) is arranged inside the air-cooled condenser (21), and the connecting end of the variable-speed axial flow fan (26) and the high-pressure sensor (25) is electrically connected.
7. The air-cooled water chilling unit with adjustable outlet water temperature according to claim 1, characterized in that: the middle part of a pipeline between the liquid storage device (20) and the economizer (13) is respectively provided with a dry filter (19), a liquid viewing mirror (18), an electromagnetic valve (17) and a ball valve (15), and the economizer (13) is in bidirectional connection with the semi-sealed scroll compressor (12) through the pipeline.
8. The air-cooled water chilling unit with adjustable outlet water temperature according to claim 4, characterized in that: the pipeline between the plate-type evaporator (1) and the gas-liquid separator (9) is a low-pressure pipe, and the pipeline between the oil separator (22) and the air-cooled condenser (21) is a high-pressure pipe.
9. The air-cooled water chilling unit with adjustable outlet water temperature according to claim 1, characterized in that: the plate-type evaporator (1) is characterized in that the secondary refrigerant inlet pipe and the secondary refrigerant outlet pipe are both provided with ethylene glycol aqueous solution, and the air-cooled condenser (21) comprises a fan speed regulator and a fan control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921198174.8U CN211345908U (en) | 2019-07-29 | 2019-07-29 | Air-cooled water chilling unit with adjustable water outlet temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921198174.8U CN211345908U (en) | 2019-07-29 | 2019-07-29 | Air-cooled water chilling unit with adjustable water outlet temperature |
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| Publication Number | Publication Date |
|---|---|
| CN211345908U true CN211345908U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921198174.8U Expired - Fee Related CN211345908U (en) | 2019-07-29 | 2019-07-29 | Air-cooled water chilling unit with adjustable water outlet temperature |
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| CN (1) | CN211345908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303957A (en) * | 2020-10-15 | 2021-02-02 | 珠海格力电器股份有限公司 | Oil return control method for compressor |
| CN112414001A (en) * | 2021-01-25 | 2021-02-26 | 北京京仪自动化装备技术有限公司 | Temperature control system for semiconductor and control method thereof |
-
2019
- 2019-07-29 CN CN201921198174.8U patent/CN211345908U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303957A (en) * | 2020-10-15 | 2021-02-02 | 珠海格力电器股份有限公司 | Oil return control method for compressor |
| CN112303957B (en) * | 2020-10-15 | 2021-10-08 | 珠海格力电器股份有限公司 | Oil return control method for compressor |
| CN112414001A (en) * | 2021-01-25 | 2021-02-26 | 北京京仪自动化装备技术有限公司 | Temperature control system for semiconductor and control method thereof |
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Granted publication date: 20200825 Termination date: 20210729 |