CN204610224U - For the switching control of two water pumps of building secondary water-supply - Google Patents
For the switching control of two water pumps of building secondary water-supply Download PDFInfo
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- CN204610224U CN204610224U CN201520332611.6U CN201520332611U CN204610224U CN 204610224 U CN204610224 U CN 204610224U CN 201520332611 U CN201520332611 U CN 201520332611U CN 204610224 U CN204610224 U CN 204610224U
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Abstract
For the switching control of two water pumps of building secondary water-supply, belong to Motor Control Field, the utility model, for solving in water source, community secondary pressurized process, adopts converter technique to control water pump and there is the high problem of cost.The utility model comprises circuit breaker Q S1 ~ QS3, thermorelay FR1, FR2, A.C. contactor KM1, KM2, auxiliary reclay KA1 ~ KA5 and JYB714 liquid level relay; When JYB714 liquid level relay detects that water level is low, start M1 and drive First pump operation, when water level is prescribed a time limit higher than upper, stop M1; When again detecting that water level is low, transferring startup M2 to and driving second pump operation, when water level is prescribed a time limit higher than upper, stopping M2, two water pump alternations.
Description
Technical field
The utility model relates to a kind of control gear of two water pump alternations, belongs to Motor Control Field.
Background technique
Behind the arrival community, water source of water supply company's conveying, carry out secondary pressurized by community, to realize, to the accurate water supply of community, reaching the object of constant pressure water supply.At present the device of large multiple cell is when second pressure water supply, employing be complicated converter technique to control water pump, but the control gear of this mode purchase cost in early stage is high, brings certain economic burden to the community of small scale; And need special messenger to safeguard, later maintenance cost is also high.
Summary of the invention
The utility model object is to solve in water source, community secondary pressurized process, adopts converter technique to control water pump and there is the high problem of cost, provide a kind of switching control of two water pumps for building secondary water-supply.
The switching control of two water pumps for building secondary water-supply described in the utility model, it comprises three-phase breaker QS1, three-phase breaker QS2, single-phase circuit breaker QS3, thermorelay FR1, thermorelay FR2, A.C. contactor KM1, A.C. contactor KM2, auxiliary reclay KA1, auxiliary reclay KA2, auxiliary reclay KA3, auxiliary reclay KA4, auxiliary reclay KA5 and JYB714 liquid level relay;
First water pump driving motor M1 often opens main contact KM1-1 by thermorelay FR1, A.C. contactor KM1 and is connected 380V ac power supply with three-phase breaker QS1;
Second water pump driving motor M2 often opens main contact KM2-1 by thermorelay FR2, A.C. contactor KM2 and is connected 380V ac power supply with three-phase breaker QS2;
Live wire L1 connects one end of auxiliary reclay KA5 normally-closed contact KA5-1, one end of auxiliary reclay KA4 normally opened contact, one end of auxiliary reclay KA2 normally-closed contact KA2-3, one end of auxiliary reclay KA5 normally-closed contact KA5-2 and 8 pin of JYB714 liquid level relay by a normal open switch of single-phase circuit breaker QS3 simultaneously;
The other end of auxiliary reclay KA5 normally-closed contact KA5-1 connects one end that one end of auxiliary reclay KA1 normally opened contact KA1-1 and A.C. contactor KM1 often leave auxiliary contact KM1-2 simultaneously; The other end that the other end and the A.C. contactor KM1 of auxiliary reclay KA1 normally opened contact KA1-1 often open auxiliary contact KM1-2 is connected one end of A.C. contactor KM1 coil simultaneously, and the other end of A.C. contactor KM1 coil connects one end that thermorelay FR1 assists normally-closed contact FR1-1;
The other end of auxiliary reclay KA4 normally opened contact connects one end of one end of auxiliary reclay KA3 normally-closed contact KA3-1, one end of auxiliary reclay KA1 normally opened contact KA1-2, one end of auxiliary reclay KA3 normally opened contact KA3-2 and auxiliary reclay KA2 normally opened contact KA2-2 simultaneously; The other end and the other end of auxiliary reclay KA1 normally opened contact KA1-2 of auxiliary reclay KA3 normally-closed contact KA3-1 are connected one end of auxiliary reclay KA2 normally-closed contact KA2-1 simultaneously, and the other end of auxiliary reclay KA2 normally-closed contact KA2-1 connects one end of auxiliary reclay KA1 coil; The other end and the other end of auxiliary reclay KA2 normally opened contact KA2-2 of auxiliary reclay KA3 normally opened contact KA3-2 are connected one end of auxiliary reclay KA1 normally-closed contact KA1-3 simultaneously, and the other end of auxiliary reclay KA1 normally-closed contact KA1-3 connects one end of auxiliary reclay KA2 coil;
The other end of auxiliary reclay KA2 normally-closed contact KA2-3 connects one end of auxiliary reclay KA1 normally opened contact KA1-4 and one end of auxiliary reclay KA3 normally opened contact KA3-3 simultaneously, and the other end and the other end of auxiliary reclay KA3 normally opened contact KA3-3 of auxiliary reclay KA1 normally opened contact KA1-4 are connected one end of auxiliary reclay KA3 coil simultaneously;
The other end of auxiliary reclay KA5 normally-closed contact KA5-2 connects one end that one end of auxiliary reclay KA2 normally opened contact KA2-4 and A.C. contactor KM2 often leave auxiliary contact KM2-2 simultaneously, the other end that the other end and the A.C. contactor KM2 of auxiliary reclay KA2 normally opened contact KA2-4 often open auxiliary contact KM2-2 is connected one end of A.C. contactor KM2 coil simultaneously, and the other end of A.C. contactor KM2 coil connects one end that thermorelay FR2 assists normally-closed contact FR2-1;
Live wire L3 connects thermorelay FR1 by another normal open switch of single-phase circuit breaker QS3 simultaneously and assists the other end of the other end of the other end of normally-closed contact FR1-1, auxiliary reclay KA1 coil, auxiliary reclay KA2 coil, the other end of auxiliary reclay KA3 coil, thermorelay FR2 to assist the other end of normally-closed contact FR2-1 and 1 pin of JYB714 liquid level relay;
To connect between 2 pin of JYB714 liquid level relay and 3 pin auxiliary reclay KA4 coil, auxiliary reclay KA5 coil of connecting between 3 pin of JYB714 liquid level relay and 4 pin; 5 pin of JYB714 liquid level relay connect the high water level electrode of building water tank, and 6 pin of JYB714 liquid level relay connect the middle water level electrode of building water tank, and 7 pin of JYB714 liquid level relay connect the low water level electrode of building water tank.
Advantage of the present utility model: the switching control structure of two water pumps for building secondary water-supply described in the utility model is simple, adopt simple discrete component, purchase cost is cheap, and there is no program controls portions, make the stability of this device extremely strong, the frequency of later maintenance can be very low, and maintenance cost has also fallen, and the community being applicable to small scale uses.
Accompanying drawing explanation
Fig. 1 is the control principle drawing of the switching control of two water pumps for building secondary water-supply described in the utility model.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, for the switching control of two of building secondary water-supply water pumps described in present embodiment, it comprises three-phase breaker QS1, three-phase breaker QS2, single-phase circuit breaker QS3, thermorelay FR1, thermorelay FR2, A.C. contactor KM1, A.C. contactor KM2, auxiliary reclay KA1, auxiliary reclay KA2, auxiliary reclay KA3, auxiliary reclay KA4, auxiliary reclay KA5 and JYB714 liquid level relay;
First water pump driving motor M1 often opens main contact KM1-1 by thermorelay FR1, A.C. contactor KM1 and is connected 380V ac power supply with three-phase breaker QS1;
Second water pump driving motor M2 often opens main contact KM2-1 by thermorelay FR2, A.C. contactor KM2 and is connected 380V ac power supply with three-phase breaker QS2;
Live wire L1 connects one end of auxiliary reclay KA5 normally-closed contact KA5-1, one end of auxiliary reclay KA4 normally opened contact, one end of auxiliary reclay KA2 normally-closed contact KA2-3, one end of auxiliary reclay KA5 normally-closed contact KA5-2 and 8 pin of JYB714 liquid level relay by a normal open switch of single-phase circuit breaker QS3 simultaneously;
The other end of auxiliary reclay KA5 normally-closed contact KA5-1 connects one end that one end of auxiliary reclay KA1 normally opened contact KA1-1 and A.C. contactor KM1 often leave auxiliary contact KM1-2 simultaneously; The other end that the other end and the A.C. contactor KM1 of auxiliary reclay KA1 normally opened contact KA1-1 often open auxiliary contact KM1-2 is connected one end of A.C. contactor KM1 coil simultaneously, and the other end of A.C. contactor KM1 coil connects one end that thermorelay FR1 assists normally-closed contact FR1-1;
The other end of auxiliary reclay KA4 normally opened contact connects one end of one end of auxiliary reclay KA3 normally-closed contact KA3-1, one end of auxiliary reclay KA1 normally opened contact KA1-2, one end of auxiliary reclay KA3 normally opened contact KA3-2 and auxiliary reclay KA2 normally opened contact KA2-2 simultaneously; The other end and the other end of auxiliary reclay KA1 normally opened contact KA1-2 of auxiliary reclay KA3 normally-closed contact KA3-1 are connected one end of auxiliary reclay KA2 normally-closed contact KA2-1 simultaneously, and the other end of auxiliary reclay KA2 normally-closed contact KA2-1 connects one end of auxiliary reclay KA1 coil; The other end and the other end of auxiliary reclay KA2 normally opened contact KA2-2 of auxiliary reclay KA3 normally opened contact KA3-2 are connected one end of auxiliary reclay KA1 normally-closed contact KA1-3 simultaneously, and the other end of auxiliary reclay KA1 normally-closed contact KA1-3 connects one end of auxiliary reclay KA2 coil;
The other end of auxiliary reclay KA2 normally-closed contact KA2-3 connects one end of auxiliary reclay KA1 normally opened contact KA1-4 and one end of auxiliary reclay KA3 normally opened contact KA3-3 simultaneously, and the other end and the other end of auxiliary reclay KA3 normally opened contact KA3-3 of auxiliary reclay KA1 normally opened contact KA1-4 are connected one end of auxiliary reclay KA3 coil simultaneously;
The other end of auxiliary reclay KA5 normally-closed contact KA5-2 connects one end that one end of auxiliary reclay KA2 normally opened contact KA2-4 and A.C. contactor KM2 often leave auxiliary contact KM2-2 simultaneously, the other end that the other end and the A.C. contactor KM2 of auxiliary reclay KA2 normally opened contact KA2-4 often open auxiliary contact KM2-2 is connected one end of A.C. contactor KM2 coil simultaneously, and the other end of A.C. contactor KM2 coil connects one end that thermorelay FR2 assists normally-closed contact FR2-1;
Live wire L3 connects thermorelay FR1 by another normal open switch of single-phase circuit breaker QS3 simultaneously and assists the other end of the other end of the other end of normally-closed contact FR1-1, auxiliary reclay KA1 coil, auxiliary reclay KA2 coil, the other end of auxiliary reclay KA3 coil, thermorelay FR2 to assist the other end of normally-closed contact FR2-1 and 1 pin of JYB714 liquid level relay;
To connect between 2 pin of JYB714 liquid level relay and 3 pin auxiliary reclay KA4 coil, auxiliary reclay KA5 coil of connecting between 3 pin of JYB714 liquid level relay and 4 pin; 5 pin of JYB714 liquid level relay connect the high water level electrode of building water tank, and 6 pin of JYB714 liquid level relay connect the middle water level electrode of building water tank, and 7 pin of JYB714 liquid level relay connect the low water level electrode of building water tank.
Working principle: for starting work, QS1, QS2 and QS3 are closed a floodgate, by the working state of JYB714 liquid level relay control circuit, when the water level of building water tank is down between low water level L and middle water level M, JYB714 liquid level relay internal relay coil adhesive action, the normally opened contact arranged between inner 2 pin of JYB714 liquid level relay and 3 pin closes, KA4 coil obtains electric, KA4 normally opened contact on Article 2 circuit closes, and connected this circuit, then KA1 coil obtains electric; Then its normally opened contact KA1-2 closes self-locking; Meanwhile, KA1-4 closes, and KA3 coil is obtained electric, KA3-3 closes self-locking, for KA2 work is next time prepared; KA3 coil obtains electric, and its normally-closed contact KA3-1 disconnects, and makes KA1 coil in upper once prohibited acts; KA3-2 closes, and for next KA2 coil obtains electric preparing, because KA2 action, KM2 coil can be made to obtain electric adhesive, and the main contact of KM2 closes, and allows M2 start running.
Meanwhile, because KA1 coil obtains electric, then KA1-1 closes, and KM1 coil obtains electric adhesive, and KM1-2 closes self-locking, and meanwhile, because KM1 coil obtains electric, its main contact KM1-1 closes, and motor M 1 works, and drives First pump working, for community pipeline supplies water.
When the water level of building water tank rises to high water level H, high water level electrode detects high water level signal, make JYB714 liquid level relay internal relay releasing winding, the normally-closed contact arranged between inner 3 pin of JYB714 liquid level relay and 4 pin returns to closed state, and KA5 coil is obtained electric, its contact KA5-1 disconnects, cut off KM1 coil power, KM1 coil blackout discharges, and its main contact KM1-1 disconnects, and motor M 1 shuts down.
When the water level of building water tank is down between low water level L and middle water level M again, KA4 coil is electric adhesive again, and its normally opened contact closes again, connected KA2 coil power, and KA2-2 closes self-locking; KA2-3 disconnects simultaneously, has cut off the power supply of KA3 coil, and KA3 coil blackout discharges, its all contact reinstatement state, for KA1 work is next time prepared, because KA1 coil obtains electric adhesive, KA1-1 closes, KM1 coil can be made to obtain electric adhesive, and KM1-1 closes, and M1 drives First pump working; Meanwhile, because KA2 coil obtains electric, KA2-4 closes, and KM2 coil obtains electric, and its main contact KM2-1 closes, and allows M2 work, drives second pump operation.
When the water level of building water tank rises to high water level H again, KA5 coil obtains electric, and its contact KA5-2 disconnects, and has cut off KM2 coil power, and KM2 coil blackout discharges, and its main contact KM2-1 disconnects, and motor M 2 shuts down.
Now, the whole power-off release of KA1, KA2, KA3 coil, recovers reset condition, prepares for connecting KM1 coil next time, namely prepares for starting M1 next time, thus achieves the working procedure of two water pump alternate runs.
Claims (1)
1. for the switching control of two water pumps of building secondary water-supply, it is characterized in that, it comprises three-phase breaker QS1, three-phase breaker QS2, single-phase circuit breaker QS3, thermorelay FR1, thermorelay FR2, A.C. contactor KM1, A.C. contactor KM2, auxiliary reclay KA1, auxiliary reclay KA2, auxiliary reclay KA3, auxiliary reclay KA4, auxiliary reclay KA5 and JYB714 liquid level relay;
First water pump driving motor M1 often opens main contact KM1-1 by thermorelay FR1, A.C. contactor KM1 and is connected 380V ac power supply with three-phase breaker QS1;
Second water pump driving motor M2 often opens main contact KM2-1 by thermorelay FR2, A.C. contactor KM2 and is connected 380V ac power supply with three-phase breaker QS2;
Live wire L1 connects one end of auxiliary reclay KA5 normally-closed contact KA5-1, one end of auxiliary reclay KA4 normally opened contact, one end of auxiliary reclay KA2 normally-closed contact KA2-3, one end of auxiliary reclay KA5 normally-closed contact KA5-2 and 8 pin of JYB714 liquid level relay by a normal open switch of single-phase circuit breaker QS3 simultaneously;
The other end of auxiliary reclay KA5 normally-closed contact KA5-1 connects one end that one end of auxiliary reclay KA1 normally opened contact KA1-1 and A.C. contactor KM1 often leave auxiliary contact KM1-2 simultaneously; The other end that the other end and the A.C. contactor KM1 of auxiliary reclay KA1 normally opened contact KA1-1 often open auxiliary contact KM1-2 is connected one end of A.C. contactor KM1 coil simultaneously, and the other end of A.C. contactor KM1 coil connects one end that thermorelay FR1 assists normally-closed contact FR1-1;
The other end of auxiliary reclay KA4 normally opened contact connects one end of one end of auxiliary reclay KA3 normally-closed contact KA3-1, one end of auxiliary reclay KA1 normally opened contact KA1-2, one end of auxiliary reclay KA3 normally opened contact KA3-2 and auxiliary reclay KA2 normally opened contact KA2-2 simultaneously; The other end and the other end of auxiliary reclay KA1 normally opened contact KA1-2 of auxiliary reclay KA3 normally-closed contact KA3-1 are connected one end of auxiliary reclay KA2 normally-closed contact KA2-1 simultaneously, and the other end of auxiliary reclay KA2 normally-closed contact KA2-1 connects one end of auxiliary reclay KA1 coil; The other end and the other end of auxiliary reclay KA2 normally opened contact KA2-2 of auxiliary reclay KA3 normally opened contact KA3-2 are connected one end of auxiliary reclay KA1 normally-closed contact KA1-3 simultaneously, and the other end of auxiliary reclay KA1 normally-closed contact KA1-3 connects one end of auxiliary reclay KA2 coil;
The other end of auxiliary reclay KA2 normally-closed contact KA2-3 connects one end of auxiliary reclay KA1 normally opened contact KA1-4 and one end of auxiliary reclay KA3 normally opened contact KA3-3 simultaneously, and the other end and the other end of auxiliary reclay KA3 normally opened contact KA3-3 of auxiliary reclay KA1 normally opened contact KA1-4 are connected one end of auxiliary reclay KA3 coil simultaneously;
The other end of auxiliary reclay KA5 normally-closed contact KA5-2 connects one end that one end of auxiliary reclay KA2 normally opened contact KA2-4 and A.C. contactor KM2 often leave auxiliary contact KM2-2 simultaneously, the other end that the other end and the A.C. contactor KM2 of auxiliary reclay KA2 normally opened contact KA2-4 often open auxiliary contact KM2-2 is connected one end of A.C. contactor KM2 coil simultaneously, and the other end of A.C. contactor KM2 coil connects one end that thermorelay FR2 assists normally-closed contact FR2-1;
Live wire L3 connects thermorelay FR1 by another normal open switch of single-phase circuit breaker QS3 simultaneously and assists the other end of the other end of the other end of normally-closed contact FR1-1, auxiliary reclay KA1 coil, auxiliary reclay KA2 coil, the other end of auxiliary reclay KA3 coil, thermorelay FR2 to assist the other end of normally-closed contact FR2-1 and 1 pin of JYB714 liquid level relay;
To connect between 2 pin of JYB714 liquid level relay and 3 pin auxiliary reclay KA4 coil, auxiliary reclay KA5 coil of connecting between 3 pin of JYB714 liquid level relay and 4 pin; 5 pin of JYB714 liquid level relay connect the high water level electrode of building water tank, and 6 pin of JYB714 liquid level relay connect the middle water level electrode of building water tank, and 7 pin of JYB714 liquid level relay connect the low water level electrode of building water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520332611.6U CN204610224U (en) | 2015-05-21 | 2015-05-21 | For the switching control of two water pumps of building secondary water-supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520332611.6U CN204610224U (en) | 2015-05-21 | 2015-05-21 | For the switching control of two water pumps of building secondary water-supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610224U true CN204610224U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520332611.6U Expired - Fee Related CN204610224U (en) | 2015-05-21 | 2015-05-21 | For the switching control of two water pumps of building secondary water-supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386969A (en) * | 2015-12-11 | 2016-03-09 | 天津市威匡电气设备有限公司 | Control circuit for two draining pumps |
| CN107940692A (en) * | 2017-11-10 | 2018-04-20 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
-
2015
- 2015-05-21 CN CN201520332611.6U patent/CN204610224U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386969A (en) * | 2015-12-11 | 2016-03-09 | 天津市威匡电气设备有限公司 | Control circuit for two draining pumps |
| CN107940692A (en) * | 2017-11-10 | 2018-04-20 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN107940692B (en) * | 2017-11-10 | 2020-01-07 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160521 |
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| CF01 | Termination of patent right due to non-payment of annual fee |