CN210118932U - Balance energy-saving control device based on central air-conditioning secondary pump system - Google Patents
Balance energy-saving control device based on central air-conditioning secondary pump system Download PDFInfo
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- CN210118932U CN210118932U CN201920956434.7U CN201920956434U CN210118932U CN 210118932 U CN210118932 U CN 210118932U CN 201920956434 U CN201920956434 U CN 201920956434U CN 210118932 U CN210118932 U CN 210118932U
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Abstract
The utility model belongs to the technical field of air conditioning equipment, in particular to a balance energy-saving control device based on a central air conditioning secondary pump system, which comprises a main machine, a total water collector, a total water distributor and a bridge pipe; the input end of the main machine is connected with the main water collector, the output end of the main machine is connected with the main water distributor, and a primary pump is arranged between the main machine and the main water collector; the output end of the main water distributor is provided with a secondary pump, and a bridge pipe is connected between the output end of the main water collector and the input end of the main water distributor; the bridge pipe is provided with an energy-saving control unit, and two ends of the energy-saving control unit are provided with a bypass pipe; a bypass valve is additionally arranged on the bypass pipe; this scheme improves current air conditioning system, through installing secondary pump system energy-saving control unit additional, when guaranteeing to satisfy cold volume demand, reduces the time that the refrigeration host computer is in low efficiency operating mode, improves refrigeration host computer efficiency.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, concretely relates to balanced energy-saving control device based on central air conditioning secondary pump system.
Background
The efficiency of the air conditioner main unit is reduced when the load is too high and too low. However, in the conventional central air-conditioning control system, if one host is started, the load of the host is very high, and the efficiency is low; if two hosts are started, the loads of the two hosts are very low, and the efficiency of the hosts is still low. In the practical use of the air conditioning system containing the secondary pump system, the flow rate of the water pump of the secondary system is often larger than that of the water pump of the primary system, and the temperature mixing phenomenon that the freezing backwater flows through the bridge pipe to the freezing water supply is often formed. The temperature mixing phenomenon raises the temperature of the chilled water flowing to the user, and the use requirement of the user cannot be met. In order to solve the problem, the air conditioning system needs to switch on the main machine more often, or the temperature of the chilled water of the main machine is adjusted to be low, so that the temperature of the chilled water after temperature mixing still meets the requirements of users. Obviously, the above conditions all reduce the efficiency of the main machine, and the COP of the whole air conditioning system is not high.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is to provide an energy-saving control unit based on a central air-conditioning secondary pump system, which improves the existing air-conditioning system, and reduces the time of a refrigeration host in a low-efficiency working condition and improves the efficiency of the refrigeration host by additionally arranging the energy-saving control unit of the secondary pump system while ensuring the requirement of cold capacity; the overall efficiency of the air conditioning system is improved under the condition of meeting the existing requirements.
The utility model provides a technical problem adopt following technical scheme to realize: a balance energy-saving control device based on a central air-conditioning secondary pump system comprises a host, a main water collector, a main water distributor and a bridge pipe; the input end of the main machine is connected with the main water collector, the output end of the main machine is connected with the main water distributor, and a primary pump is arranged between the main machine and the main water collector; the output end of the main water distributor is provided with a secondary pump, and a bridge pipe is connected between the output end of the main water collector and the input end of the main water distributor; the bridge pipe is provided with an energy-saving control unit, and two ends of the energy-saving control unit are provided with a bypass pipe; and a bypass valve is additionally arranged on the bypass pipe.
Furthermore, the energy-saving control unit comprises a cooling regulating valve and a cold source which are sequentially connected in series on the bridge pipe.
Further, the cold source is any one of an ice tank and a refrigerator.
The principle of the utility model lies in:
and an ice groove or a refrigerator and other cold sources are additionally arranged on the bridge pipe, and the bridge pipe circulating water is cooled if necessary. A cooling regulating valve is additionally arranged in front of the cold source. And a bypass pipe is arranged on the bridge pipe, and a bypass valve is additionally arranged on the bypass pipe. The front end of the bypass pipe is connected in front of the cooling regulating valve, and the rear end of the bypass pipe is connected behind the cold source.
When the flow of the secondary pump is larger than that of the primary pump, the water flow direction in the bridge pipe is the direction from which the freezing backwater flows to the freezing water supply, and in order to avoid too high temperature of the freezing water after temperature mixing, cold sources such as an ice groove or a refrigerator are additionally arranged on the bridge pipe, so that the temperature of the bridge pipe is reduced, and the temperature of the freezing water supply after temperature mixing is still low enough. The process can ensure that the load of the main machine is unchanged, and the temperature of the outlet water of the main machine does not need to be reduced.
When the load on the user side is not high, the cooling regulating valve can be closed, and the bypass valve can be opened, so that the energy consumption on the bridge pipe is reduced.
When the host is in the low-efficiency working condition of too high load and the like, the load of the host can be adjusted by opening or closing the cooling regulating valve and the bridge pipe cold source, so that the overall efficiency of the system is improved. When the flow of the primary pump is larger than that of the secondary pump, the bypass valve is opened, the cooling regulating valve and the cold source are closed, and the working condition of the device is equal to that of the traditional bridge pipe.
The scheme has the beneficial effects as follows:
this scheme has guaranteed that the freezing water supply after mixing the temperature still satisfies user's user demand through install energy-conserving control unit additional on the bridge pipe, and need not to adjust the host computer. The device can also flexibly adjust the load on the host, thereby avoiding the host from being in a low-efficiency working condition as far as possible and greatly improving the overall energy-saving efficiency of the air-conditioning system. The scheme can be used for installing a new project and reforming an old system.
Drawings
Fig. 1 is the utility model relates to a balanced energy-saving control device schematic structure based on central air conditioning secondary pump system.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 efforts belong to the protection scope of the present invention.
Reference numerals in the drawings of the specification include: the system comprises a main machine 1, a main water collector 2, a main water distributor 3, a primary pump 4, a secondary pump 5, a bridge pipe 6, a bypass pipe 7, a cold source 8, a cooling regulating valve 9 and a bypass valve 10.
Examples
As shown in fig. 1, a balancing energy-saving control device based on a central air-conditioning secondary pump system comprises a main machine 1, a total water collector 2, a total water distributor 3 and a bridge pipe 6; the input end of the main machine 1 is connected with a main water collector 2, the output end of the main machine 1 is connected with a main water distributor 3, and a primary pump 4 is arranged between the main machine 1 and the main water collector 2; the output end of the main water distributor 3 is provided with a secondary pump 5, and a bridge pipe 6 is connected between the output end of the main water collector 2 and the input end of the main water distributor 3; the bridge pipe 6 is provided with an energy-saving control unit, and two ends of the energy-saving control unit are provided with a bypass pipe 7; and a bypass valve 10 is additionally arranged on the bypass pipe 7. The energy-saving control unit comprises a cooling regulating valve 9 and a cold source 8 which are sequentially connected in series on the bridge pipe 6. The cold source 8 is an ice tank.
When in use:
when the flow of the secondary pump 5 is larger than that of the primary pump 4, a part of the freezing backwater is merged into the freezing water supply through the bridge pipe 6, and the temperature mixing phenomenon is generated. In order to ensure that the temperature of the frozen water supply after temperature mixing still meets the use requirements of users, the temperature-reducing regulating valve 9 is opened to a proper opening degree, and the ice groove is opened to reduce the temperature of the water of the bridge pipe 6. Thereby reducing the water temperature of the bridge pipe 6 during water mixing, and meeting the requirement of freezing water supply temperature under the condition of not increasing the energy consumption of the host 1.
When the host 1 is in the low-efficiency working condition, the opening degree of the cooling regulating valve 9 can be adjusted, and the cold quantity supply of the ice tank is changed, so that the cold quantity load of the host 1 is adjusted, and the host 1 is recovered to the high-efficiency working condition.
When the cold load of a user is not high, the refrigeration backwater is directly mixed into the refrigeration water supply without being cooled so as to meet the requirement of the user, and at the moment, the bypass valve 10 is opened, and the cooling regulating valve 9 is closed. When the primary pump side flow is larger than the secondary pump side flow, the bypass valve 10 is opened, and the cooling regulating valve 9 is closed.
When the capacity of the host 1 is not enough to meet the demand of the load side, the cold source 8 on the pipeline can be started, so that the cold supply of the whole system is improved. In practical application, the opening degrees of the bypass valve 10 and the cooling regulating valve 9 are reasonably selected, so that the overall efficiency of the system can be improved to the greatest extent.
According to the scheme, the energy-saving control unit is additionally arranged on the bridge pipe 6, so that the refrigeration water supply after temperature mixing still meets the use requirements of users, and the host 1 does not need to be adjusted. The device can also flexibly adjust the load on the host 1, thereby avoiding the host 1 from being in low-efficiency working condition as far as possible and greatly improving the overall energy-saving efficiency of the air-conditioning system. The scheme can be used for installing a new project and reforming an old system.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, but only by the principle of the present invention, and the present invention can be modified without departing from the spirit and scope of the present invention, and all of the modifications and improvements fall within the scope of the present invention.
Claims (3)
1. A balance energy-saving control device based on a central air-conditioning secondary pump system is characterized by comprising a host, a main water collector, a main water distributor and a bridge pipe; the input end of the main machine is connected with the main water collector, the output end of the main machine is connected with the main water distributor, and a primary pump is arranged between the main machine and the main water collector; the output end of the main water distributor is provided with a secondary pump, and a bridge pipe is connected between the output end of the main water collector and the input end of the main water distributor; the bridge pipe is provided with an energy-saving control unit, and two ends of the energy-saving control unit are provided with a bypass pipe; and a bypass valve is additionally arranged on the bypass pipe.
2. The balance energy-saving control device based on the central air-conditioning secondary pump system as claimed in claim 1, characterized in that: the energy-saving control unit comprises a cooling regulating valve and a cold source which are sequentially connected in series on the bridge pipe.
3. The balance energy-saving control device based on the central air-conditioning secondary pump system as claimed in claim 2, characterized in that: the cold source is any one of an ice groove and a refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920956434.7U CN210118932U (en) | 2019-06-24 | 2019-06-24 | Balance energy-saving control device based on central air-conditioning secondary pump system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920956434.7U CN210118932U (en) | 2019-06-24 | 2019-06-24 | Balance energy-saving control device based on central air-conditioning secondary pump system |
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| CN210118932U true CN210118932U (en) | 2020-02-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160244A (en) * | 2019-06-24 | 2019-08-23 | 浙江大冲能源科技有限公司 | A kind of balanced energy conservation control device based on central air-conditioning secondary pumping system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160244A (en) * | 2019-06-24 | 2019-08-23 | 浙江大冲能源科技有限公司 | A kind of balanced energy conservation control device based on central air-conditioning secondary pumping system |
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Address after: 4 / F, building 1, No. 22, Kangzheng Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Dachong Energy Technology Co.,Ltd. Address before: 4 / F, building 1, No. 22, Kangzheng Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG DACHONG ENERGY SCIENCE & TECHNOLOGY CO.,LTD. |