CN101832622B - Method for realizing continuous regulation of primary pump variable flow system by using evaporative water cooling machine set - Google Patents
Method for realizing continuous regulation of primary pump variable flow system by using evaporative water cooling machine set Download PDFInfo
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- CN101832622B CN101832622B CN2010101817882A CN201010181788A CN101832622B CN 101832622 B CN101832622 B CN 101832622B CN 2010101817882 A CN2010101817882 A CN 2010101817882A CN 201010181788 A CN201010181788 A CN 201010181788A CN 101832622 B CN101832622 B CN 101832622B
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Abstract
The invention discloses a method for realizing the continuous regulation of a primary pump variable flow system by using an evaporative water cooling machine set, the evaporative water cooling machine set is adopted as a cold source at the cold source side of the primary pump variable flow system, and a pressure difference controller is connected in series between a water separator and a water collector at a load side, so that the pressure difference controller is respectively connected with a fan and a circulating pump of the evaporative water cooling machine set through signals and the circulating pump and the fan are continuously regulated under the action of the pressure difference controller. in addition, not only operation platform number control can be carried out on the circulating pump is not only subjected to operation platform number control, but also to variable frequency modulation, and the air volume of the exhaust fan of the evaporative water cooling machine set is correspondingly regulated along with the change of the load side, thereby saving transportation energy consumption.
Description
Technical field
The invention belongs to air-conditioning cold (heat) matchmaker transmission ﹠ distribution technology field, relate to the control method of primary pump variable flow system, be specifically related to a kind of method that realizes the continuous adjusting of primary pump variable flow system with the vaporation-type handpiece Water Chilling Units.
Background technology
Be called a pump (or claiming single entry pump) system what low-temperature receiver side and load side were share one group of circulating pump.If on the return branch of the load side air conditioner end equipment of a pumping system two-way electronic valve is installed, by the operation of unsteady flow amount, so, this system just is called as primary pump variable flow system.Traditional primary pump variable flow system in order to guarantee the operate as normal of mechanical refrigeration handpiece Water Chilling Units evaporimeter, requires the low-temperature receiver side water yield constant usually, can not regulate with the frequency of its corresponding circulating pump and cater to changes in flow rate in the water system.And the discharge that can only work as bypass line just can stop this handpiece Water Chilling Units and corresponding water circulating pump when reaching a handpiece Water Chilling Units flow substantially.So existing primary pump variable flow system can not carry out variable frequency adjustment to single circulating pump, and can only only can do discontinuity control, can not regulate the flow of water pump, be difficult to save conveying energy consumption the operation platform numerical control system of circulating pump to pump.
Along with the development of evaporation cooling technique, the succeeding in developing of vaporation-type handpiece Water Chilling Units, the vaporation-type handpiece Water Chilling Units has been applied in the middle of the actual engineering at present.If the low-temperature receiver side of primary pump variable flow system adopts the vaporation-type handpiece Water Chilling Units, just can there be of the harsh requirement of foregoing traditional mechanical refrigeration handpiece Water Chilling Units to flow.
Summary of the invention
The purpose of this invention is to provide a kind of method that realizes the continuous adjusting of primary pump variable flow system with the vaporation-type handpiece Water Chilling Units, make the blower fan interlock of circulating pump and vaporation-type handpiece Water Chilling Units regulate, can be along with corresponding variable frequency adjustment and operation platform numerical control system be made in the variation of discharge in the water system, and then reach the effect of saving conveying energy consumption.
The technical solution adopted in the present invention is, realize the method that primary pump variable flow system is regulated continuously with the vaporation-type handpiece Water Chilling Units, primary pump variable flow system is connected to combine by pipe network with load side by the low-temperature receiver side and forms, the low-temperature receiver side is made up of low-temperature receiver and Duo Tai circulating pump, load side comprises the water knockout drum that is connected successively by water (flow) direction, air conditioning terminal, two-way electronic valve and water collector, adopt the low-temperature receiver of vaporation-type handpiece Water Chilling Units as primary pump variable flow system, the differential pressure controller of between water knockout drum and water collector, connecting, this differential pressure controller is connected with the circulating pump signal with the blower fan of vaporation-type handpiece Water Chilling Units respectively
When the load of load side air conditioning terminal reduces gradually, climator is closed two-way electronic valve, reduce or close water supply to air conditioning terminal, pressure reduction between water knockout drum and the water collector changes, when this pressure reduction surpasses the predefined setting value of differential pressure controller, differential pressure controller outputs signal to circulating pump and blower fan respectively, make the frequency of circulating pump and blower fan make corresponding reduction, when the flow of water knockout drum and water collector had reduced the flow of a circulating pump, a circulating pump was out of service; When the air quantity of blower fan had reduced the air quantity of a typhoon machine, a typhoon machine was out of service; When load continues to reduce, by this principle, under the differential pressure controller effect, reduce the running frequency of circulating pump and blower fan earlier, and then continue to reduce its operation platform number; On the contrary, along with the increase of load side air conditioning terminal load, climator is opened two-way electronic valve successively, and circulating pump and blower fan are made opposite adjusting under the effect of differential pressure controller, make circulating pump and blower fan open operation successively, realized continuous adjusting circulating pump and blower fan.
The beneficial effect of the inventive method is:
What 1, the low-temperature receiver side adopted is the vaporation-type handpiece Water Chilling Units, does not exist traditional mechanical refrigeration handpiece Water Chilling Units to entering the harsh requirement of evaporator water flow, not only can be to the control of pump operating cycle platform number, and can carry out variable frequency adjustment to single circulating pump.
2, the interlock of circulating pump and blower fan is regulated, and along with closing successively of load side two-way electronic valve, makes between collection, the water knockout drum pressure reduction of (perhaps supply, return main between) surpass preset value.At this moment, the differential pressure controller output signal is controlled circulating pump and blower fan respectively, makes the frequency of circulating pump and blower fan make corresponding reduction.Along with constantly turning down of circulating pump frequency, when the water yield of water system has reduced the flow of a pump, just can stop the work of a circulating pump; Along with constantly turning down of blower fan frequency, when air quantity has reduced the air quantity of a typhoon machine, just can stop the work of a typhoon machine.When load continues to reduce, by this principle, under the differential pressure controller effect, reduce the running frequency of circulating pump and blower fan earlier, and then continue to reduce its operation platform number.On the contrary, along with the increase of load side load, opposite adjusting is made in the unlatching in succession of two-way electronic valve under the effect of differential pressure controller.
Description of drawings
Fig. 1 is the structural representation of primary pump variable flow system in the inventive method;
Fig. 2 is the principle schematic of the inventive method.
Among the figure, 1 circulating pump, 2 water knockout drums, 3 water collectors, 4 differential pressure controllers, 5 valve a, 6 valve b, 7 air conditioning terminals, 8 two-way electronic valves, 9 valve c, 10 blower fans, 11 vaporation-type handpiece Water Chilling Units.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Primary pump variable flow system is connected to combine by pipe network with load side by the low-temperature receiver side and forms, the low-temperature receiver side comprises low-temperature receiver and Duo Tai circulating pump 1, and load side comprises water knockout drum 2, valve a5, air conditioning terminal 7, two-way electronic valve 8, valve b6 and the water collector 3 that is connected successively by water (flow) direction.The characteristics of the inventive method are to adopt the low-temperature receiver of vaporation-type handpiece Water Chilling Units 11 as primary pump variable flow system, series connection differential pressure controller 4 between water knockout drum 2 and water collector 3, this differential pressure controller 4 is connected with circulating pump 1 signal with the blower fan 10 of vaporation-type handpiece Water Chilling Units respectively, make the blower fan 10 and the circulating pump 1 of the blower fan of vaporation-type handpiece Water Chilling Units under the effect of differential pressure controller 4, realize the interlock adjusting, promptly under the effect of differential pressure controller 4, it is not only moved platform numerical control system, and can also carry out frequency adjustment, what carry out is that continuity is regulated.
Fig. 1 is that the low-temperature receiver side is the embodiment of the primary pump variable flow system of vaporation-type handpiece Water Chilling Units, has showed the relative position of low-temperature receiver side and each equipment of load side.
Fig. 2 is the principle signal of the inventive method, the running that the inventive method is regulated continuously to primary pump variable flow system:
Reduction along with load side air conditioning terminal 7 loads, climator is closed two-way electronic valve 8, reduce or close to air conditioning terminal 7 and supply water, make confession, return main's flow reduce, and then have influence on the pressure reduction of (perhaps between water main and the return main) between water knockout drum 2 and the water collector 3, when this pressure reduction surpasses differential pressure controller 4 predefined setting values, differential pressure controller 4 will output signal to circulating pump 1 and blower fan 10, makes the frequency of circulating pump 1 and blower fan 10 make corresponding reduction.When confession, return main's flow has reduced the flow of a circulating pump, just can stop the operation of a circulating pump; When the air quantity of blower fan 10 has reduced the air quantity of a typhoon machine, just can stop the operation of a typhoon machine.When load continues to reduce, by this principle, under differential pressure controller 4 effects, reduce the running frequency of circulating pump 1 and blower fan 10 earlier, and then continue to reduce its operation platform number.On the contrary, along with the increase of load side air conditioning terminal 7 loads, climator is opened two-way electronic valve 8 successively, and circulating pump 1 and blower fan 10 are made opposite adjusting under the effect of differential pressure controller.
The inventive method can not only be accomplished the control to circular flow platform number, can also carry out variable frequency adjustment to single circulating pump, can also make the adjusting that links of the blower fan of vaporation-type handpiece Water Chilling Units and circulating pump in addition, pump and blower fan are done the continuity adjusting, thereby can regulate the flow of water pump and the air quantity of blower fan, save conveying energy consumption.
Claims (1)
1. realize the method that primary pump variable flow system is regulated continuously with the vaporation-type handpiece Water Chilling Units, primary pump variable flow system is connected to combine by pipe network with load side by the low-temperature receiver side and forms, the low-temperature receiver side is made up of low-temperature receiver and Duo Tai circulating pump (1), load side comprises the water knockout drum (2) that is connected successively by water (flow) direction, air conditioning terminal (7), two-way electronic valve (8) and water collector (3), it is characterized in that, adopt the low-temperature receiver of vaporation-type handpiece Water Chilling Units (11) as primary pump variable flow system, the differential pressure controller (4) of between water knockout drum (2) and water collector (3), connecting, this differential pressure controller (4) is connected with circulating pump (1) signal with the blower fan (10) of vaporation-type handpiece Water Chilling Units respectively
When the load of load side air conditioning terminal (7) reduces gradually, climator is closed two-way electronic valve (8), reduce or close water supply to air conditioning terminal (7), pressure reduction between water knockout drum (2) and the water collector (3) changes, when this pressure reduction surpasses the predefined setting value of differential pressure controller (4), differential pressure controller (4) outputs signal to circulating pump (1) and blower fan (10) respectively, make the frequency of circulating pump (1) and blower fan (10) make corresponding reduction, when the flow of water knockout drum (2) and water collector (3) had reduced the flow of a circulating pump, a circulating pump was out of service; When the air quantity of blower fan (10) had reduced the air quantity of a typhoon machine, a typhoon machine was out of service; When load continues to reduce, by this principle, under differential pressure controller (4) effect, reduce the running frequency of circulating pump (1) and blower fan (10) earlier, and then continue to reduce its operation platform number; On the contrary, increase along with load side air conditioning terminal (7) load, climator is opened two-way electronic valve (8) successively, circulating pump (1) and blower fan (10) are made opposite adjusting under the effect of differential pressure controller (4), make circulating pump (1) and blower fan (10) open operation successively, realized continuous adjusting circulating pump (1) and blower fan (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101817882A CN101832622B (en) | 2010-05-25 | 2010-05-25 | Method for realizing continuous regulation of primary pump variable flow system by using evaporative water cooling machine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101817882A CN101832622B (en) | 2010-05-25 | 2010-05-25 | Method for realizing continuous regulation of primary pump variable flow system by using evaporative water cooling machine set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832622A CN101832622A (en) | 2010-09-15 |
| CN101832622B true CN101832622B (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101817882A Expired - Fee Related CN101832622B (en) | 2010-05-25 | 2010-05-25 | Method for realizing continuous regulation of primary pump variable flow system by using evaporative water cooling machine set |
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| CN (1) | CN101832622B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697719A (en) * | 2013-12-30 | 2014-04-02 | 国核华清（北京）核电技术研发中心有限公司 | Parallel multi-branch cooling water distribution and adjustment system |
| JP6210219B2 (en) * | 2014-01-31 | 2017-10-11 | 三菱重工サーマルシステムズ株式会社 | Pump number control method, pump number control device, pump system, heat source system, and program |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205415A (en) * | 1997-12-21 | 1999-01-20 | 叶可 | Personal air conditioner |
| CN2472116Y (en) * | 2001-03-20 | 2002-01-16 | 广东省科学院自动化工程研制中心 | Fuzzy control energy saver for central air conditioner |
| CN1375665A (en) * | 2001-03-20 | 2002-10-23 | 广东省科学院自动化工程研制中心 | Intelligent power saving system for central air conditioner |
| CN1415915A (en) * | 2002-08-27 | 2003-05-07 | 贵州华城楼宇科技有限公司 | Self-adapting energy saving control device with variable flux for compression type central conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008076041A (en) * | 2006-08-25 | 2008-04-03 | Sanyo Electric Co Ltd | Air conditioner |
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2010
- 2010-05-25 CN CN2010101817882A patent/CN101832622B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205415A (en) * | 1997-12-21 | 1999-01-20 | 叶可 | Personal air conditioner |
| CN2472116Y (en) * | 2001-03-20 | 2002-01-16 | 广东省科学院自动化工程研制中心 | Fuzzy control energy saver for central air conditioner |
| CN1375665A (en) * | 2001-03-20 | 2002-10-23 | 广东省科学院自动化工程研制中心 | Intelligent power saving system for central air conditioner |
| CN1415915A (en) * | 2002-08-27 | 2003-05-07 | 贵州华城楼宇科技有限公司 | Self-adapting energy saving control device with variable flux for compression type central conditioner |
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| CN101832622A (en) | 2010-09-15 |
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Granted publication date: 20111207 Termination date: 20140525 |