CN203098239U - Protective device of heating pump - Google Patents
Protective device of heating pump Download PDFInfo
- Publication number
- CN203098239U CN203098239U CN 201320084440 CN201320084440U CN203098239U CN 203098239 U CN203098239 U CN 203098239U CN 201320084440 CN201320084440 CN 201320084440 CN 201320084440 U CN201320084440 U CN 201320084440U CN 203098239 U CN203098239 U CN 203098239U
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- China
- Prior art keywords
- circuit
- normally
- closed contact
- relay
- control circuit
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- Expired - Fee Related
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- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a protective device of a heating pump. The protective device of the heating pump comprises a circulating pump control circuit and a water supply pump control circuit. The circulating pump control circuit comprises a star connection starting circuit, a start and delay circuit and an angle joint operating indicating circuit, the star connection starting circuit of the circulating pump control circuit comprises a stop switch, a start switch, a normally-closed contact of a thermal relay, a normally-closed contact of a time relay and a normally-closed contact of a relay, the stop switch is connected with one end of the normally-closed contact of the thermal relay, the other end of the normally-closed contact of the thermal relay is respectively connected with the start and delay circuit and a first end of the start switch, the second end of the start switch is connected with the normally-closed contact of the relay, the normally-closed contact of the time relay and the coil of the other relay in series in sequence, and the second end of the start switch is further connected with the start and delay circuit. When a circuit is overloaded, the motion of the normally-closed contact 1KH of the thermal relay is guaranteed to effectively disconnect a related control power supply, and the heating pump is made to operate safely.
Description
Technical field
The utility model relates to a kind of electric protective device of water pump, relates in particular to a kind of heating pump protector of heating system.
Background technique
At present, heating system has recycle pump, small pump, recycle pump is a star angle start-up control, after the pump startup process is finished, the protection thermorelay (normally-closed contact 1KH be in relay normally-closed contact 1KM3 the lower end and be between some several normally-closed contact 1KT that light) when pump motor transship, lost overload protective function, can not cut off the control power supply, be equivalent to the complete unprotect of equipment and move, there is the possibility that burns out thermorelay and burn out motor, also has electric disaster hidden-trouble; Small pump is by the control of pipeline pressure switch, when pipeline pressure is in critical value, because the fluctuation of pressure and temporary transient unstable; cause the disturbance of pressure switch; make small pump motor frequent starting and stopping at short notice, cause the motor protecting circuit tripping operation, normally moisturizing.
The model utility content
The purpose of this utility model provides a kind of heating pump protector, can protect the safe operation of heating pump.
The utility model adopts following technical proposals: a kind of heating pump protector; comprise recycle pump control circuit and small pump control circuit; described recycle pump control circuit includes star and connects starting circuit; start and delay circuit; corner connection operation indicating circuit; star in the described recycle pump control circuit connects starting circuit and comprises stop switch; enable switch; the normally-closed contact of thermorelay; the normally-closed contact of the time relay; the normally-closed contact of relay; described stop switch is connected with normally-closed contact one end of thermorelay; the normally-closed contact the other end of thermorelay connects startup and delay circuit respectively; first end of enable switch; second end of described enable switch and the normally-closed contact of relay; the normally-closed contact of the time relay; the coil of another relay is connected successively, and second end of described enable switch also connects startup and delay circuit.
Described small pump control circuit comprises that small pump is prepared circuit, pressure switch and delay circuit, small pump moves circuit and small pump failure indicating circuit, described pressure switch and delay circuit comprise the series circuit that the coil of the pressure switch and the time relay is formed, and the normally opened contact of the described time relay is connected in the small pump operation circuit.
The utility model connects the star of recycle pump the lower end that moves to control main line 1SB1 on the normally-closed contact 1KH of the thermorelay in the starting circuit, guarantees when circuit overloads, and relevant control power supply can be effectively cut off in the action of the normally-closed contact 1KH of thermorelay; Increase time control in the control circuit of small pump, making pressure switch is that the connection of 3-5 below second is invalid at width, thereby the pressure switch disturbance when avoiding the pipeline pressure unstable state, thereby operation the time avoided equipment at short notice frequent starting, stop, greatly reduce equipment failure rate, maintenance rate, improved equipment effective operation rate and working life.
Description of drawings
Fig. 1 is recycle pump control circuit figure of the present utility model;
Fig. 2 is small pump control circuit figure of the present utility model.
Embodiment
As shown in Figure 1; a kind of heating pump protector of the utility model; comprise recycle pump control circuit and small pump control circuit; described recycle pump control circuit includes star and connects starting circuit; start and delay circuit; corner connection operation indicating circuit; star in the described recycle pump control circuit connects starting circuit and comprises stop switch 1SB1; enable switch 1SB2; the normally-closed contact 1KH of thermorelay; the normally-closed contact 1KT of the time relay; the normally-closed contact 1KM3 of relay; described stop switch 1SB1 is connected with normally-closed contact 1KH one end of thermorelay; thermorelay the normally-closed contact 1KH the other end connect respectively and start and delay circuit; first end of enable switch 1SB2; second end of described enable switch 1SB2 and the normally-closed contact 1KM3 of relay; the normally-closed contact 1KT of the time relay; the coil 1KM1 of another relay connects successively; second end of described enable switch 1SB2 also connects startup and delay circuit; guarantee that when circuit overloads relevant control power supply can be effectively cut off in the action of the normally-closed contact 1KH of thermorelay.
As shown in Figure 2, the small pump control circuit comprises that small pump is prepared circuit, pressure switch and delay circuit, small pump moves circuit and small pump failure indicating circuit, described pressure switch and delay circuit comprise the series circuit that the coil 3KT1 of the pressure switch K and the time relay forms, and the normally opened contact 3KT11 of the described time relay is connected in the small pump operation circuit.Pressure switch K is that the connection of 3-5 below second is invalid at width, thus the pressure switch disturbance when avoiding the pipeline pressure unstable state.Avoided equipment at short notice frequent starting, stop, greatly reducing equipment failure rate, maintenance rate, improved equipment effective operation rate and working life.
Claims (2)
1. heating pump protector; comprise recycle pump control circuit and small pump control circuit; described recycle pump control circuit includes star and connects starting circuit; start and delay circuit; corner connection operation indicating circuit; it is characterized in that: the star in the described recycle pump control circuit connects starting circuit and comprises stop switch; enable switch; the normally-closed contact of thermorelay; the normally-closed contact of the time relay; the normally-closed contact of relay; described stop switch is connected with normally-closed contact one end of thermorelay; the normally-closed contact the other end of thermorelay connects startup and delay circuit respectively; first end of enable switch; second end of described enable switch and the normally-closed contact of relay; the normally-closed contact of the time relay; the coil of another relay is connected successively, and second end of described enable switch also connects startup and delay circuit.
2. heating pump protector according to claim 1; it is characterized in that: described small pump control circuit comprises that small pump is prepared circuit, pressure switch and delay circuit, small pump moves circuit and small pump failure indicating circuit; described pressure switch and delay circuit comprise the series circuit that the coil of the pressure switch and the time relay is formed, and the normally opened contact of the described time relay is connected in the small pump operation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084440 CN203098239U (en) | 2013-02-25 | 2013-02-25 | Protective device of heating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084440 CN203098239U (en) | 2013-02-25 | 2013-02-25 | Protective device of heating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098239U true CN203098239U (en) | 2013-07-31 |
Family
ID=48849646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320084440 Expired - Fee Related CN203098239U (en) | 2013-02-25 | 2013-02-25 | Protective device of heating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905989A (en) * | 2017-09-11 | 2018-04-13 | 广东核电合营有限公司 | A kind of method, female footballer and the main feed pump system of the reversion of solution APA stand-by pumps |
| CN109113975A (en) * | 2018-07-23 | 2019-01-01 | 江森自控空调冷冻设备(无锡)有限公司 | Starting protection circuit and starting cabinet for air-conditioner set |
-
2013
- 2013-02-25 CN CN 201320084440 patent/CN203098239U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905989A (en) * | 2017-09-11 | 2018-04-13 | 广东核电合营有限公司 | A kind of method, female footballer and the main feed pump system of the reversion of solution APA stand-by pumps |
| CN107905989B (en) * | 2017-09-11 | 2019-05-28 | 广东核电合营有限公司 | A kind of method, female footballer and main feed pump system solving the reversion of APA stand-by pump |
| CN109113975A (en) * | 2018-07-23 | 2019-01-01 | 江森自控空调冷冻设备(无锡)有限公司 | Starting protection circuit and starting cabinet for air-conditioner set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Wenling Inventor after: Zhao Yang Inventor after: Fan Huitao Inventor before: Zhao Yang Inventor before: Fan Huitao Inventor before: Wang Jingjing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHAO YANG FAN HUITAO WANG JINGJING TO: WANG WENLING ZHAO YANG FAN HUITAO |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20190225 |