CN201937520U - Soft starting system of cooling water pump - Google Patents
Soft starting system of cooling water pump Download PDFInfo
- Publication number
- CN201937520U CN201937520U CN2011200401511U CN201120040151U CN201937520U CN 201937520 U CN201937520 U CN 201937520U CN 2011200401511 U CN2011200401511 U CN 2011200401511U CN 201120040151 U CN201120040151 U CN 201120040151U CN 201937520 U CN201937520 U CN 201937520U
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- CN
- China
- Prior art keywords
- water pump
- cooling water
- soft
- starting system
- soft starting
- 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.)
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Abstract
The utility model belongs to the technical field of air-conditioning refrigerating systems, and particularly relates to a soft starting system of a cooling water pump, comprising a water pump motor and a main contactor which is connected in series between the water pump motor and the input end of a three-phase AC (alternating-current) supply, wherein two ends of the main contactor are connected in parallel with a soft starting circuit which comprises a soft starter and an auxiliary contactor which are connected in series. As the soft starting system of a cooling water pump is provided with the soft starter, when the starting system is started, the impact on the mechanical part of the water pump can be reduced by appropriately prolonging the rise time of slope, thereby prolonging the service life of equipment; and meanwhile, the starting current is relatively reduced, and the impact on a power grid is consequently reduced.
Description
Technical field
The utility model belongs to the air-conditioning refrigeration system technical field, is specifically related to a kind of cooling water pump Soft Starting System.
Background technology
Adopt star-triangle operation when present air-conditioning system starts water pump, electric current is bigger during startup, and electrical network is had certain influence.And its starting current rate of rise is big, start-up time short, and big to the impact of mechanical water pump part, shorten the useful life of equipment.
The utility model content
In order to address the above problem, the purpose of this utility model is to provide a kind of cooling water pump Soft Starting System of soft start.
For achieving the above object, technical scheme that the utility model adopts is as follows:
A kind of cooling water pump Soft Starting System comprises pump motor, and is connected on the main contactor between described pump motor and the three-phase alternating-current supply input; The soft start circuit also in parallel at described main contactor two ends; Described soft start circuit comprises soft initiator and the secondary contactor that is cascaded.
Described cooling water pump Soft Starting System also is in series with a thermal relay between described main contactor and described pump motor.
Described cooling water pump Soft Starting System also is in series with one first circuit breaker between described main contactor and described three-phase alternating-current supply input.
Described cooling water pump Soft Starting System also is in series with one second circuit breaker on described soft start circuit.
Described cooling water pump Soft Starting System, described three-phase alternating-current supply input is connected on the control loop by one the 3rd circuit breaker.
After the utility model adopted soft initiator, when starting, the proper extension slope rise time can reduce the impact to the mechanical water pump part, prolongs the useful life of equipment.Simultaneously starting current reduces relatively, and the impact of electrical network is also reduced.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:
Fig. 1 is a schematic block circuit diagram of the present utility model.
Among the figure:
U: the first live wire V: second live wire
W: the 3rd live wire N: the neutral line
PE: protection ground wire QF0: first circuit breaker
QF1: the second circuit breaker Q F2: the 3rd circuit breaker
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
Embodiment 1:
As shown in Figure 1, present embodiment discloses a kind of cooling water pump Soft Starting System, comprise pump motor, main contactor, soft start circuit, thermal relay, the first circuit breaker Q F0, the 3rd circuit breaker Q F2, described soft start circuit comprises the second circuit breaker Q F1, soft initiator, the secondary contactor that is cascaded; Wherein, three-phase alternating-current supply input (the first live wire U, the second live wire V, the 3rd live wire W), the first circuit breaker Q F0, main contactor, thermal relay and pump motor are cascaded, the soft start circuit is connected in parallel on described main contactor two ends, and three-phase alternating-current supply input (the 3rd live wire W) is connected on the control loop by the 3rd circuit breaker (QF2); Protection ground wire PE ground connection.
After the utility model adopted soft initiator, when starting, the proper extension slope rise time can reduce the impact to the mechanical water pump part, prolongs the useful life of equipment.Simultaneously starting current reduces relatively, and the impact of electrical network is also reduced.
Wherein, the effect that adds the first circuit breaker Q F0, the first circuit breaker Q F0, the 3rd circuit breaker Q F2 is to prevent that the too high situations of electric current such as short circuit from appearring in circuit, with protective circuit.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. a cooling water pump Soft Starting System comprises pump motor, and is connected on the main contactor between described pump motor and the three-phase alternating-current supply input, it is characterized in that:
The soft start circuit also in parallel at described main contactor two ends;
Described soft start circuit comprises soft initiator and the secondary contactor that is cascaded.
2. cooling water pump Soft Starting System according to claim 1 is characterized in that:
Between described main contactor and described pump motor, also be in series with a thermal relay.
3. cooling water pump Soft Starting System according to claim 1 is characterized in that:
Between described main contactor and described three-phase alternating-current supply input, also be in series with one first circuit breaker (QF0).
4. cooling water pump Soft Starting System according to claim 1 is characterized in that:
On described soft start circuit, also be in series with one second circuit breaker (QF1).
5. cooling water pump Soft Starting System according to claim 1 is characterized in that:
Described three-phase alternating-current supply input is connected on the control loop by one the 3rd circuit breaker (QF2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200401511U CN201937520U (en) | 2011-02-16 | 2011-02-16 | Soft starting system of cooling water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200401511U CN201937520U (en) | 2011-02-16 | 2011-02-16 | Soft starting system of cooling water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937520U true CN201937520U (en) | 2011-08-17 |
Family
ID=44449024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200401511U Expired - Lifetime CN201937520U (en) | 2011-02-16 | 2011-02-16 | Soft starting system of cooling water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201937520U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368671A (en) * | 2011-09-30 | 2012-03-07 | 广州高澜节能技术股份有限公司 | High voltage direct current transmission valve cooling system soft starting apparatus |
| CN102392815A (en) * | 2011-11-29 | 2012-03-28 | 江苏科工科技有限公司 | Device specially used for electric information-based automatic-control of pump station |
| CN109639186A (en) * | 2018-12-28 | 2019-04-16 | 西南铝业（集团）有限责任公司 | A kind of electric motor starting system and finishing mill system |
-
2011
- 2011-02-16 CN CN2011200401511U patent/CN201937520U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368671A (en) * | 2011-09-30 | 2012-03-07 | 广州高澜节能技术股份有限公司 | High voltage direct current transmission valve cooling system soft starting apparatus |
| CN102392815A (en) * | 2011-11-29 | 2012-03-28 | 江苏科工科技有限公司 | Device specially used for electric information-based automatic-control of pump station |
| CN109639186A (en) * | 2018-12-28 | 2019-04-16 | 西南铝业（集团）有限责任公司 | A kind of electric motor starting system and finishing mill system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN MJ ENERGY ENVIRONMENTAL TECHNOLOGY CO., L Free format text: FORMER NAME: SHENZHEN MJ ELECTRIC INSTALLATION ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong, Shenzhen, Xixiang, the streets of the streets of the labor community in the source of the source of the road business street F1-F21 Dong (F16-301) () Patentee after: Shenzhen Meizhao Energy & Environment Technology Co., Ltd. Address before: 518000 Guangdong, Shenzhen, Xixiang, the streets of the streets of the labor community in the source of the source of the road business street F1-F21 Dong (F16-301) () Patentee before: Shenzhen Meizhao Electric Installation Engineering Co., Ltd. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Meizhao Energy & Environment Technology Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Ziwen Document name: Notice of termination of patent right |