CN201348320Y - Chilled water conveying system of central air conditioner - Google Patents
Chilled water conveying system of central air conditioner Download PDFInfo
- Publication number
- CN201348320Y CN201348320Y CNU2008202054383U CN200820205438U CN201348320Y CN 201348320 Y CN201348320 Y CN 201348320Y CN U2008202054383 U CNU2008202054383 U CN U2008202054383U CN 200820205438 U CN200820205438 U CN 200820205438U CN 201348320 Y CN201348320 Y CN 201348320Y
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- chilled water
- water
- main
- central air
- refrigeration unit
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Abstract
The utility model relates to a chilled water conveying system of a central air conditioner, which comprises a refrigerating unit. The chilled water conveying system of a central air conditioner is characterized in that a chilled water conveying loop is arranged between a chilled water outlet and a chilled water returning opening of the refrigerating unit, the chilled water conveying loop comprises a chilled water pump unit (1), a chilled water supplying main (2) and a chilled water returning main (3), a differential pressure by-pass controller (7) is arranged between the chilled water supplying main (2) and the chilled water returning main (3), the chilled water outlet of the refrigerating unit is connected with the chilled water supplying main (2) through the chilled water pump unit (1), the chilled water returning opening of the refrigerating unit is directly connected to the chilled water returning main (3), and a differential pressure by-pass device (8) is arranged between the chilled water returning opening of the refrigerating unit and the chilled water outlet of the refrigerating unit. The chilled water conveying system prevents a host machine from being damaged by over-flow running, simultaneously increases circulating flow of the system, improves unbalanced heat conveying conditions of the system, and further is simple and practical.
Description
Technical field
The utility model relates to a kind of central air-conditioning chilled water induction system, is applicable to central air-conditioning handpiece Water Chilling Units host computer side bypass.Belong to HVAC (HVAC) technical field.
Background technology
At present, in central air-conditioning chilled water induction system, when end-equipment (user) to the demand of chilled water hour, for the freezing water yield of the handpiece Water Chilling Units that guarantees to flow through constant substantially, make the handpiece Water Chilling Units efficient stable move, also can not to be higher than setting value in order guaranteeing for the pressure reduction between the return main simultaneously, to make terminal control system comparatively stably work, present way is to be provided with the pressure reduction by-pass collar for (end side) between the house steward of backwater.But, in present actual motion, because the central air-conditioning end system is comparatively huge, hydraulic regime is comparatively complicated and changeable, hydraulic misadjustment phenomenon ubiquity, therefore tend to occur and above (demand to chilled water the is less) operating condition that phenomenon is opposite, just terminal (user) side is bigger to the total demand of chilled water.When the specified water yield that this total amount allows to pass through greater than the handpiece Water Chilling Units side, present system configuration then can not meet the demands, and the terminal water shortage of system's least favorable often occurs, and air-conditioner temperature is too high, can not satisfy the needs of all air conditioner users.
The utility model content
The purpose of this utility model, be to exist system's heating power to carry shortcoming uneven, that can not meet consumers' demand in the existing central air-conditioning chilled water induction system in order to overcome, a kind of central air-conditioning chilled water induction system is provided, this system can avoid the super flow operation of main frame to damage, improve system's heating power simultaneously and carry unbalance condition, meet consumers' demand, the assurance system normally moves.
The purpose of this utility model can reach by following technical solution:
Central air-conditioning chilled water induction system, comprise refrigeration unit, its design feature is: chilled water is set between the chilled water delivery port of refrigeration unit and water return outlet carries loop, described chilled water carries loop to comprise chilled water pump group, chilled water water main and chilled water return main, is provided with pressure reduction by-pass governing device between chilled water water main and chilled water return main; The delivery port of refrigeration unit connects the chilled water water main by the chilled water pump group, and the water return outlet of refrigeration unit directly connects the chilled water return main; Between the delivery port of the water return outlet of refrigeration unit and refrigeration unit, be provided with pressure reduction bypass device.
The purpose of this utility model can also reach by following technical solution:
A kind of embodiment of the present utility model is: described pressure reduction by-pass governing device can be made of pressure sensor and water valve, and water valve is made of electromagnetism water valve or mechanical water valve.
A kind of embodiment of the present utility model is: described chilled water pump group can be made of the water pump of two parallel connections at least.
A kind of embodiment of the present utility model is: described refrigeration unit can be formed in parallel by at least two refrigeration machines.
A kind of embodiment of the present utility model is: described pressure reduction bypass device is made of self-operated type pressure reduction bypass device.
A kind of embodiment of the present utility model is: the opening pressure of described pressure reduction bypass device can be greater than the specified resistance of main frame inlet and outlet pipe.
The beneficial effects of the utility model are:
The utility model is a kind of central air-conditioning handpiece Water Chilling Units host computer side by-pass collar that is applicable to.The little temperature difference phenomenon of big flow that the utility model brings at chilled water system resistance imbalance, only break through traditionally the way that side endways is provided with by-pass collar, proposed to be provided with on the central air-conditioning handpiece Water Chilling Units Inlet and outlet water house steward method of self-operated type pressure reduction by-pass collar; Can avoid main frame because of super flow operation damages, have the beneficial effect that increases the systemic circulation flow simultaneously, improves system's heating power conveying unbalance condition, also have simple and practical advantage.
Description of drawings
Fig. 1 is with structural representation of the present utility model.
The specific embodiment
Specific embodiment:
With reference to Fig. 1, present embodiment comprises refrigeration unit, chilled water is set between the chilled water delivery port of refrigeration unit and water return outlet carries loop, described chilled water carries loop to comprise chilled water pump group 1, chilled water water main 2 and chilled water return main 3, is provided with pressure reduction by-pass governing device 7 between chilled water water main 2 and chilled water return main 3; The delivery port of refrigeration unit connects chilled water water main 2 by chilled water pump group 1, and the water return outlet of refrigeration unit directly connects chilled water return main 3; Between the delivery port of the water return outlet of refrigeration unit and refrigeration unit, be provided with pressure reduction bypass device 8.
In the present embodiment, pressure reduction by-pass governing device 7 is made of pressure sensor 71 and water valve 72, and water valve 72 is made of electromagnetism water valve or mechanical water valve.Chilled water pump group 1 is made of the water pump 11 of two parallel connections at least.Refrigeration unit is formed in parallel by at least two refrigeration machines 4.Described pressure reduction bypass device 8 is made of self-operated type pressure reduction bypass device.The opening pressure of described pressure reduction bypass device 8 is greater than the specified resistance of main frame inlet and outlet pipe.
Claims (6)
1, central air-conditioning chilled water induction system, comprise refrigeration unit, it is characterized in that: chilled water is set between the chilled water delivery port of refrigeration unit and water return outlet carries loop, described chilled water carries loop to comprise chilled water pump group (1), chilled water water main (2) and chilled water return main (3), is provided with pressure reduction by-pass governing device (7) between chilled water water main (2) and chilled water return main (3); The delivery port of refrigeration unit connects chilled water water main (2) by chilled water pump group (1), and the water return outlet of refrigeration unit directly connects chilled water return main (3); Between the delivery port of the water return outlet of refrigeration unit and refrigeration unit, be provided with pressure reduction bypass device (8).
2, central air-conditioning chilled water induction system according to claim 1 is characterized in that: pressure reduction by-pass governing device (7) is made of pressure sensor (71) and water valve (72), and water valve (72) is made of electromagnetism water valve or mechanical water valve.
3, central air-conditioning chilled water induction system according to claim 1 is characterized in that: chilled water pump group (1) is made of the water pump (11) of two parallel connections at least.
4, central air-conditioning chilled water induction system according to claim 1, it is characterized in that: refrigeration unit is formed in parallel by at least two refrigeration machines (4).
5, central air-conditioning chilled water induction system according to claim 1 is characterized in that: described pressure reduction bypass device (8) is made of self-operated type pressure reduction bypass device.
6, central air-conditioning chilled water induction system according to claim 1 and 2, it is characterized in that: the opening pressure of described pressure reduction bypass device (8) is greater than the specified resistance of main frame inlet and outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202054383U CN201348320Y (en) | 2008-12-17 | 2008-12-17 | Chilled water conveying system of central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202054383U CN201348320Y (en) | 2008-12-17 | 2008-12-17 | Chilled water conveying system of central air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348320Y true CN201348320Y (en) | 2009-11-18 |
Family
ID=41367787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202054383U Expired - Lifetime CN201348320Y (en) | 2008-12-17 | 2008-12-17 | Chilled water conveying system of central air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348320Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277863A (en) * | 2013-06-24 | 2013-09-04 | 机械工业第三设计研究院 | Air conditioner cold water variable-flow system and control method thereof |
| CN104457002A (en) * | 2014-12-31 | 2015-03-25 | 昆山台佳机电有限公司 | Integrated double-cooling water chilling unit |
| CN109458659A (en) * | 2017-09-06 | 2019-03-12 | 崔荣桓 | Boiler including type variable differential flow regulating valve |
-
2008
- 2008-12-17 CN CNU2008202054383U patent/CN201348320Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277863A (en) * | 2013-06-24 | 2013-09-04 | 机械工业第三设计研究院 | Air conditioner cold water variable-flow system and control method thereof |
| CN103277863B (en) * | 2013-06-24 | 2015-12-09 | 机械工业第三设计研究院 | Air conditioner cold water variable-flow system and control method thereof |
| CN104457002A (en) * | 2014-12-31 | 2015-03-25 | 昆山台佳机电有限公司 | Integrated double-cooling water chilling unit |
| CN104457002B (en) * | 2014-12-31 | 2017-01-25 | 昆山台佳机电有限公司 | Integrated double-cooling water chilling unit |
| CN109458659A (en) * | 2017-09-06 | 2019-03-12 | 崔荣桓 | Boiler including type variable differential flow regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |