CN109764568A - Water cooler and control method - Google Patents
Water cooler and control method Download PDFInfo
- Publication number
- CN109764568A CN109764568A CN201811573863.2A CN201811573863A CN109764568A CN 109764568 A CN109764568 A CN 109764568A CN 201811573863 A CN201811573863 A CN 201811573863A CN 109764568 A CN109764568 A CN 109764568A
- Authority
- CN
- China
- Prior art keywords
- compressor
- water cooler
- bypass line
- throttle mechanism
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
Abstract
The present invention provides a kind of water cooler and control method.Water cooler includes compressor, and the compressor has exhaust outlet and air entry, is provided with bypass line between the air entry and the exhaust outlet.Water cooler and control method provided by the invention, bypass line is set between the exhaust outlet and air entry of compressor, the Load Regulation of unit (compressor) is realized by the control of throttle mechanism, high side gas is sent into low-pressure side by bypass line by throttle mechanism, to realize the Load Regulation of unit (compressor), water cooler load output area is set to reach 5%~100%, compressor is still constantly in working condition when load is too low simultaneously, when load changes, it can be avoided the start-up course of compressor, to realize quick response, meet the application requirement to special occasions such as nuclear powers.
Description
Technical field
The present invention relates to water cooler Load Regulation technical field, especially a kind of water cooler and control method.
Background technique
Conventional screw unit load adjustable range is 25~100% at present, and since its compressor limits, output load cannot
Drop to it is especially low (general minimum 25% or so), common Load Regulation mode be in unit running process, it is cold by controlling
Freeze leaving water temperature (can also pass through freezing inflow temperature) to adjust the output of load, when freezing leaving water temperature and being lower than setting value,
Unit (compressor) reduces the output of load by unloading, if water temperature persistently reduces, unit (compressor) is persistently unloaded
To minimum load, and close unit (compressor).When freezing leaving water temperature rises to set temperature or more, and shutdown intervals reach
When to certain value, unit can just restart, output load, therefore small there are load regulation range and load responding is slow asks
Topic.
Summary of the invention
In order to solve the technical problem that the adjustable load range of existing water cooler is too small and load responding is slow, and provide
A kind of water cooler and control method fast with bigger load regulation range and load responding.
A kind of water cooler, including compressor, the compressor have exhaust outlet and air entry, the air entry and described
Bypass line is provided between exhaust outlet.
Throttle mechanism is provided on the bypass line.
The throttle mechanism is electric expansion valve.
The water cooler further includes pressure sensor and temperature sensor, the bypass pipe of the throttle mechanism two sides
Road is provided with the pressure sensor and the temperature sensor.
The water cooler further includes evaporator, and the outlet of the evaporator is connected to the air entry of the compressor, and
The first end of the bypass line is set between the outlet of the evaporator and the air entry of the compressor.
Pressure sensor and temperature sensor are provided between the first end and the outlet of the evaporator.
A kind of control method of above-mentioned water cooler, comprising:
S1, the minimum load a1 for determining compressor, and the real-time load a2 of real-time detection compressor；
S2, compare a1 and a2, if a2 is less than a1, open the bypass line.
In step sl, further includes: the real time temperature t2 of real-time detection chilled water, and real-time load is calculated according to t2
a2。
It is provided with throttle mechanism on the bypass line, is provided on the bypass line of the throttle mechanism two sides
Pressure sensor and temperature sensor are passed according to the pressure sensor of the throttle mechanism two sides and/or temperature in step s 2
Sensor controls the aperture of the throttle mechanism.
Bypass pipe is arranged between the exhaust outlet and air entry of compressor in water cooler and control method provided by the invention
Road, the Load Regulation of unit (compressor) is realized by the control of throttle mechanism, and throttle mechanism passes through bypass line for high pressure
Side gas is sent into low-pressure side makes water cooler load output area reach 5% to realize the Load Regulation of unit (compressor)
~100%, while compressor is still constantly in working condition when load is too low, when load changes, can be avoided
The start-up course of compressor meets the application requirement to special occasions such as nuclear powers to realize quick response.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the water cooler of the embodiment of water cooler provided by the invention and control method；
In figure:
1, compressor；11, exhaust outlet；12, air entry；2, bypass line；3, throttle mechanism；4, evaporator.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, not
For limiting the present invention.
Water cooler as shown in Figure 1, including compressor 1, the compressor 1 have exhaust outlet 11 and air entry 12, institute
It states and is provided with bypass line 2 between air entry 12 and the exhaust outlet 11, by bypass line 2 by the high-pressure side gas of compressor 1
The low-pressure side that body is sent into compressor 1 makes water cooler load output area to realize the Load Regulation of unit (compressor 1)
Reach 5%~100%.
It is provided with throttle mechanism 3 on the bypass line 2, the circulation of bypass line 2 and cold is controlled by throttle mechanism 3
The state of matchmaker switches, and the high pressure refrigerant for enabling compressor 1 to be discharged is converted into compressor 1 by the throttling action of throttle mechanism 3
The gaseous coolant of direct air-breathing reduces the coolant quantity in the circulation line for entering unit, and then reduces the negative of unit (compressor)
Lotus, thus the Load Regulation to realize unit (compressor 1).
The throttle mechanism 3 is electric expansion valve.
The water cooler further includes pressure sensor and temperature sensor, the bypass of 3 two sides of throttle mechanism
The pressure sensor and the temperature sensor are provided on pipeline 2, by comparing the pressure sensing of 3 two sides of throttle mechanism
The measured value of device and/or the measured value of temperature sensor adjust the aperture of throttle mechanism 3 in real time, and then realize to bypass line 2
Circulation adjusting, finally realize unit (compressor 1) load adjusting.
The water cooler further includes evaporator 4, and chilled water carries out heat exchange, the evaporation with refrigerant in evaporator 4
The outlet of device 4 is connected to the air entry 12 of the compressor 1, and the first end of the bypass line 2 is set to the evaporator 4
Outlet and the compressor 1 air entry 12 between.
It is provided with pressure sensor and temperature sensor between the first end and the outlet of the evaporator 4, utilizes this
The state of circulating refrigerant in pressure sensor and temperature sensor detection water cooler, and then judge the work shape of water cooler
State.
A kind of control method of above-mentioned water cooler, comprising:
S1, the minimum load a1 for determining compressor 1, and the real-time load a2 of real-time detection compressor 1；
S2, compare a1 and a2, if a2 is less than a1, open the bypass line 2.
In step sl, further includes: the real time temperature t2 of real-time detection chilled water, and real-time load is calculated according to t2
a2。
It is provided with throttle mechanism 3 on the bypass line 2, is all provided on the bypass line 2 of 3 two sides of throttle mechanism
Be equipped with pressure sensor and temperature sensor, in step s 2, according to the pressure sensor of 3 two sides of throttle mechanism and/or
Temperature sensor controls the aperture of the throttle mechanism 3.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those 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 guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of water cooler, including compressor (1), the compressor (1) has exhaust outlet (11) and air entry (12), special
Sign is: bypass line (2) are provided between the air entry (12) and the exhaust outlet (11).
2. water cooler according to claim 1, it is characterised in that: be provided with throttle mechanism on the bypass line (2)
(3)。
3. water cooler according to claim 2, it is characterised in that: the throttle mechanism (3) is electric expansion valve.
4. water cooler according to claim 2, it is characterised in that: the water cooler further includes pressure sensor and temperature
Sensor is spent, is provided with the pressure sensor and the temperature on the bypass line (2) of throttle mechanism (3) two sides
Spend sensor.
5. water cooler according to claim 1, it is characterised in that: the water cooler further includes evaporator (4), described
The outlet of evaporator (4) is connected to the air entry (12) of the compressor (1), and the first end setting of the bypass line (2)
Between the outlet of the evaporator (4) and the air entry (12) of the compressor (1).
6. water cooler according to claim 5, it is characterised in that: the outlet of the first end and the evaporator (4)
Between be provided with pressure sensor and temperature sensor.
7. a kind of control method of water cooler described in any one of claims 1 to 6, it is characterised in that: include:
S1, the minimum load a1 for determining compressor (1), and the real-time load a2 of real-time detection compressor (1)；
S2, compare a1 and a2, if a2 is less than a1, open the bypass line (2).
8. control method according to claim 7, it is characterised in that: in step sl, further includes: real-time detection chilled water
Real time temperature t2, and real-time load a2 is calculated according to t2.
9. control method according to claim 7, it is characterised in that: be provided with throttle mechanism on the bypass line (2)
(3), it is provided with pressure sensor and temperature sensor on the bypass line (2) of throttle mechanism (3) two sides, in step
In rapid S2, the throttle mechanism (3) is controlled according to the pressure sensor of the throttle mechanism (3) two sides and/or temperature sensor
Aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573863.2A CN109764568A (en) | 2018-12-21 | 2018-12-21 | Water cooler and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573863.2A CN109764568A (en) | 2018-12-21 | 2018-12-21 | Water cooler and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109764568A true CN109764568A (en) | 2019-05-17 |
Family
ID=66450835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811573863.2A Pending CN109764568A (en) | 2018-12-21 | 2018-12-21 | Water cooler and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109764568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031489A1 (en) * | 2019-08-16 | 2021-02-25 | 珠海格力电器股份有限公司 | Compressor having early exhaust function and air conditioning system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002350004A (en) * | 2001-05-23 | 2002-12-04 | Daikin Ind Ltd | Refrigerant circuit of air conditioner |
| JP2010025483A (en) * | 2008-07-22 | 2010-02-04 | Fukushima Industries Corp | Cooling storage |
| CN102822609A (en) * | 2010-03-25 | 2012-12-12 | 三菱电机株式会社 | Refrigeration cycle apparatus and method for operating same |
| CN106766302A (en) * | 2017-02-20 | 2017-05-31 | 英得艾斯（上海）冷冻空调有限公司 | A kind of handpiece Water Chilling Units and its control method |
| CN107289559A (en) * | 2017-07-05 | 2017-10-24 | 珠海格力电器股份有限公司 | Handpiece Water Chilling Units energy conditioning structure, energy adjustment method and handpiece Water Chilling Units |
| CN107499492A (en) * | 2017-07-19 | 2017-12-22 | 珠海格力电器股份有限公司 | Handpiece Water Chilling Units and its control method |
| CN108019904A (en) * | 2016-11-01 | 2018-05-11 | 伟思环境技术有限公司 | Test cabinet |
-
2018
- 2018-12-21 CN CN201811573863.2A patent/CN109764568A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002350004A (en) * | 2001-05-23 | 2002-12-04 | Daikin Ind Ltd | Refrigerant circuit of air conditioner |
| JP2010025483A (en) * | 2008-07-22 | 2010-02-04 | Fukushima Industries Corp | Cooling storage |
| CN102822609A (en) * | 2010-03-25 | 2012-12-12 | 三菱电机株式会社 | Refrigeration cycle apparatus and method for operating same |
| CN108019904A (en) * | 2016-11-01 | 2018-05-11 | 伟思环境技术有限公司 | Test cabinet |
| CN106766302A (en) * | 2017-02-20 | 2017-05-31 | 英得艾斯（上海）冷冻空调有限公司 | A kind of handpiece Water Chilling Units and its control method |
| CN107289559A (en) * | 2017-07-05 | 2017-10-24 | 珠海格力电器股份有限公司 | Handpiece Water Chilling Units energy conditioning structure, energy adjustment method and handpiece Water Chilling Units |
| CN107499492A (en) * | 2017-07-19 | 2017-12-22 | 珠海格力电器股份有限公司 | Handpiece Water Chilling Units and its control method |
Non-Patent Citations (1)
| Title |
|---|
| 石文星等: "《小型空调热泵装置设计》", 31 October 2013, 中国建筑工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031489A1 (en) * | 2019-08-16 | 2021-02-25 | 珠海格力电器股份有限公司 | Compressor having early exhaust function and air conditioning system |
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Application publication date: 20190517 |