CN219388118U - Slurry pump control circuit - Google Patents
Slurry pump control circuit Download PDFInfo
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- CN219388118U CN219388118U CN202320256396.0U CN202320256396U CN219388118U CN 219388118 U CN219388118 U CN 219388118U CN 202320256396 U CN202320256396 U CN 202320256396U CN 219388118 U CN219388118 U CN 219388118U
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- intermediate relay
- normally open
- open contact
- relay
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a slurry pump control circuit, which comprises a time relay KT; the manual starting button SB2, the normally closed contact KT-1 of the time relay KT and the coil of the third intermediate relay KA3 are connected in series to form a main control loop; the normally open contact KA3-1 of the third intermediate relay KA3 and the manual starting button SB2 are connected in parallel to form self-locking, and the normally open contact KA3-1 of the third intermediate relay KA3 is connected in series with the coil of the time relay KT; the normally open contact KA3-2 of the third intermediate relay KA3 is connected in series with the coil of the contactor KM. The advantages are that: when high liquid level float switch K1 or low liquid level float switch K2 trouble, through setting for time relay KT's setting value, manual start button SB2 is pressed to manual, starts the sediment stuff pump after, when time relay KT reaches the setting value, can realize stopping the operation of sediment stuff pump, and then has reached the purpose of practicing thrift the human cost.
Description
Technical field:
the utility model relates to the technical field of slurry pump equipment, in particular to a slurry pump control circuit.
The background technology is as follows:
the slurry pump used in the current coal washery is used for pumping the sewage for cleaning the factory to a designated place through a pipeline by a pump pit; at present, the control of the slurry pump is realized by simply controlling the start and stop of the slurry pump through a button, or by automatically controlling the height and the liquid level of a floating ball, the control mode is single, if the floating ball fails, a worker does not find the slurry pump in time, the slurry pump cannot run, accumulated water in a factory building cannot be discharged in time, or the worker starts the slurry pump through the button, the water level condition of a pump pit still needs to be observed on site, and when the water in the pump pit is pumped out, the slurry pump is stopped manually by the worker, so that the labor cost is consumed.
The utility model comprises the following steps:
the utility model aims to provide a slurry pump control circuit which can effectively control the operation of a slurry pump so as to ensure the working efficiency and save the labor cost.
The utility model is implemented by the following technical scheme: a slurry pump control circuit, which comprises a contactor KM, a third intermediate relay KA3, a time relay KT, a stop button SB1 and a manual start button SB2; the manual starting button SB2, the normally closed contact KT-1 of the time relay KT and the coil of the third intermediate relay KA3 are connected in series to form a main control loop, and the stop button SB1 is connected in series to the main control loop; the normally open contact KA3-1 of the third intermediate relay KA3 and the manual starting button SB2 are connected in parallel to form self-locking, and the normally open contact KA3-1 of the third intermediate relay KA3 is connected in series with the coil of the time relay KT; and the normally open contact KA3-2 of the third intermediate relay KA3 is connected with the coil of the contactor KM in series and then connected with the main control loop in parallel.
Further, the device also comprises a first intermediate relay KA1, a second intermediate relay KA2, a high-liquid-level float switch K1 and a low-liquid-level float switch K2; the high liquid level float switch K1, the normally open contact KA2-1 of the second intermediate relay KA2 and the coil of the first intermediate relay KA1 are connected in series and then connected in parallel with the main control loop; the normally open contact KA1-1 of the first intermediate relay KA1 is connected with the high-liquid-level float switch K1 in parallel; the low liquid level float switch K2 is connected with the coil of the second intermediate relay KA2 in series and then connected with the main control loop in parallel; the normally open contact KA1-2 of the first intermediate relay KA1 is connected in parallel to the normally open contact KA3-2 of the third intermediate relay KA 3.
Further, the main control loop is connected with a normally closed contact of the thermal overload relay FR in series.
Further, the normally open contact KA3-3 of the third intermediate relay KA3 is connected in series with the manual operation indicator lamp HL1 and then connected in parallel with the main control loop.
Further, the normally open contacts KA1-3 of the first intermediate relay KA1 are connected in series with the automatic operation indicator lamp HL2 and then connected in parallel with the main control loop.
The utility model has the advantages that: when high liquid level float switch K1 or low liquid level float switch K2 trouble, through setting for time relay KT's setting value, manual start button SB2 is pressed to manual, starts the sediment stuff pump after, when time relay KT reaches the setting value, can realize stopping the operation of sediment stuff pump, and then has reached the purpose of practicing thrift the human cost. In addition, an automatic operation control process or a manual operation control process is adopted, so that a post worker is not required to observe the operation condition of the slurry pump at any time, the labor cost is saved, and the economic benefit is increased.
Description of the drawings:
fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic diagram of a main circuit structure according to the present utility model.
The components in the drawings are marked as follows: the automatic operation control device comprises a main loop 1, a driving motor 1.1, a main control loop 2, a circuit breaker QF1, a fuse FU, a contactor KM, a thermal overload relay FR, a third intermediate relay KA3, a time relay KT, a stop button SB1, a manual start button SB2, a first intermediate relay KA1, a second intermediate relay KA2, a high-liquid-level floating ball switch K1, a low-liquid-level floating ball switch K2, a manual operation indicator lamp HL1 and an automatic operation indicator lamp HL2.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 and 2, the present embodiment provides a slurry pump control circuit, which includes a contactor KM, a third intermediate relay KA3, a time relay KT, a stop button SB1, and a manual start button SB2; the main loop controlled by the control circuit of the embodiment is a driving motor 1.1 of a slurry pump connected with three-phase alternating current, and a breaker QF1, a fuse FU, a normally open contact of a contactor KM and a thermal overload relay FR are connected in series on the main loop 1, and before operation, the breaker QF1 is closed.
In the embodiment, a main control loop 2 is formed by serially connecting a manual starting button SB2, a normally closed contact KT-1 of a time relay KT and a coil of a third intermediate relay KA3, and the manual starting button SB2 is in a normally open state; the main control loop 2 is connected with a stop button SB1 in series, the stop button SB1 is in a normally closed state, and the stop button SB1 is connected with a power supply AC220V L; the normally open contact KA3-1 of the third intermediate relay KA3 and the manual starting button SB2 are connected in parallel to form self-locking, and the normally open contact KA3-1 of the third intermediate relay KA3 is connected in series with the coil of the time relay KT; the normally open contact KA3-2 of the third intermediate relay KA3 is connected in series with the coil of the contactor KM and then connected in parallel with the main control loop 2; the main control loop 2 is connected with a normally closed contact of a thermal overload relay FR in series, and the normally closed contact of the thermal overload relay FR is connected to a power supply N in series; the normally open contact KA3-3 of the third intermediate relay KA3 is connected in series with the manual operation indicator lamp HL1 and then connected in parallel with the main control loop 2.
The manual operation control process: (1) The set value of the time relay KT is set by testing the time of the slurry pump to finish pumping water in the pump pit.
(2) And when the manual starting button SB2 is pressed, the coil of the third intermediate relay KA3 is electrified, and meanwhile, the normally open contact KA3-1 of the third intermediate relay KA3 is closed to form self-locking, and the coil of the time relay KT is electrified.
(3) Meanwhile, the normally open contact KA3-2 of the third intermediate relay KA3 is closed, the coil of the contactor KM is electrified, the normally open contact of the contactor KM on the main loop 1 is closed, and the slurry pump starts to operate.
(4) Meanwhile, the normally open contact KA3-3 of the third intermediate relay KA3 is closed, and the manual operation indicator lamp HL1 is turned on.
(5) When the time relay KT reaches a set value, a normally closed contact KT-1 of the time relay KT is disconnected, a coil of a third intermediate relay KA3 is powered off, normally open contacts KA3-1, KA3-2 and KA3-3 of the third intermediate relay KA3 are all disconnected, a coil of a contactor KM is powered off, a slurry pump stops running, a manual running indicator lamp HL1 is turned off, and the operation condition of the slurry pump is conveniently clear at the moment of a station worker.
Therefore, through setting the set value of the time relay KT, the manual starting button SB2 is manually pressed, and after the slurry pump is started, when the time relay KT reaches the set value, the operation of the slurry pump can be stopped, so that the purpose of saving the labor cost is achieved.
The device also comprises a first intermediate relay KA1, a second intermediate relay KA2, a high-liquid-level float switch K1 and a low-liquid-level float switch K2; after the high liquid level floating ball switch K1, the normally open contact KA2-1 of the second intermediate relay KA2 and the coil of the first intermediate relay KA1 are connected in series, the high liquid level floating ball switch K1 is connected in parallel with the main control loop, and is in a normally open state; the normally open contact KA1-1 of the first intermediate relay KA1 is connected with the high-liquid-level float switch K1 in parallel; the low liquid level float switch K2 is connected with the coil of the second intermediate relay KA2 in series and then connected with the main control loop in parallel, and the low liquid level float switch K2 is in a normally open state; the normally open contact KA1-2 of the first intermediate relay KA1 is connected in parallel with the normally open contact KA3-2 of the third intermediate relay KA 3; the normally open contact KA1-3 of the first intermediate relay KA1 is connected in series with the automatic operation indicator lamp HL2 and then connected in parallel with the main control loop.
And (3) automatically running a control process: (1) When the water level in the pump pit triggers the low-liquid-level float switch K2, the normally open contact of the low-liquid-level float switch K2 is closed, the coil of the second intermediate relay KA2 is electrified, and the normally open contact KA2-1 of the second intermediate relay KA2 is closed.
(2) When the water level triggers the high liquid level float switch K1, the normally open contact of the high liquid level float switch K1 is closed, the coil of the intermediate relay KA1 is electrified, the normally open contact KA1-1 of the intermediate relay is closed to form self-locking, the normally open contact KA1-2 of the first intermediate relay KA1 is closed, the coil of the contactor KM is electrified, the slurry pump operates, and meanwhile, the normally open contact KA1-3 of the first intermediate relay KA1 is closed, and the automatic operation indicator lamp HL2 is lightened.
(3) When the water level drops to the low liquid level, the normally open contact of the low liquid level float switch K2 is disconnected, the second intermediate relay KA2 is powered off, the normally open contact KA2-1 of the second intermediate relay KA2 is disconnected, the coil of the first intermediate relay KA1 is powered off, the normally open contact KA1-2 of the first intermediate relay KA1 is disconnected, the coil of the contactor KM is powered off, the slurry pump stops running, the normally open contact KA1-3 of the first intermediate relay KA1 is disconnected, the automatic running indicator lamp HL2 is turned off, and the operation condition of the slurry pump is clear at the moment of a station worker.
When the manual starting button SB2 fails, through the automatic operation control process, the automatic control of starting and stopping of the slurry pump is realized according to the water level condition in the pump pit; in daily work, automatic control is adopted firstly, when the high-liquid-level floating ball switch K1 or the low-liquid-level floating ball switch K2 fails, manual starting of the slurry pump can still be realized through the manual operation control process, and the operation of the slurry pump is stopped through setting of the set value of the time relay KT, so that the aim of saving labor cost is fulfilled; in addition, an automatic operation control process or a manual operation control process is adopted, so that a post worker is not required to observe the operation condition of the slurry pump at any time, the labor cost is saved, and the economic benefit is increased.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. The slurry pump control circuit is characterized by comprising a contactor (KM), a third intermediate relay (KA 3), a time relay (KT), a stop button (SB 1) and a manual start button (SB 2);
the manual starting button (SB 2), the normally closed contact (KT-1) of the time relay (KT) and the coil of the third intermediate relay (KA 3) are connected in series to form a main control loop, and the stop button (SB 1) is connected in series to the main control loop; the normally open contact (KA 3-1) of the third intermediate relay (KA 3) and the manual starting button (SB 2) are connected in parallel to form self-locking, and the normally open contact (KA 3-1) of the third intermediate relay (KA 3) is connected in series with the coil of the time relay (KT); and a normally open contact (KA 3-2) of the third intermediate relay (KA 3) is connected in series with a coil of the contactor KM and then connected in parallel with the main control loop.
2. The slurry pump control circuit according to claim 1, further comprising a first intermediate relay (KA 1), a second intermediate relay (KA 2), a high-level float switch (K1) and a low-level float switch (K2);
the high liquid level float switch (K1), the normally open contact (KA 2-1) of the second intermediate relay (KA 2) and the coil of the first intermediate relay (KA 1) are connected in series and then connected in parallel with the main control loop; a normally open contact (KA 1-1) of the first intermediate relay (KA 1) is connected with the high-liquid-level float switch (K1) in parallel; the low-liquid-level floating ball switch (K2) is connected with the coil of the second intermediate relay (KA 2) in series and then connected with the main control loop in parallel; a normally open contact (KA 1-2) of the first intermediate relay (KA 1) is connected in parallel to a normally open contact (KA 3-2) of the third intermediate relay (KA 3).
3. A slurry pump control circuit according to claim 1, characterized in that the main control circuit is connected in series with a normally closed contact of a thermal overload relay (FR).
4. A slurry pump control circuit according to claim 1, characterized in that the normally open contact (KA 3-3) of the third intermediate relay (KA 3) is connected in series with the manual operation indicator lamp (HL 1) and then connected in parallel with the main control loop.
5. A slurry pump control circuit according to claim 2, characterized in that the normally open contact (KA 1-3) of the first intermediate relay (KA 1) is connected in series with the automatic operation indicator lamp (HL 2) and then connected in parallel with the main control loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320256396.0U CN219388118U (en) | 2023-02-16 | 2023-02-16 | Slurry pump control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320256396.0U CN219388118U (en) | 2023-02-16 | 2023-02-16 | Slurry pump control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219388118U true CN219388118U (en) | 2023-07-21 |
Family
ID=87167624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320256396.0U Active CN219388118U (en) | 2023-02-16 | 2023-02-16 | Slurry pump control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219388118U (en) |
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2023
- 2023-02-16 CN CN202320256396.0U patent/CN219388118U/en active Active
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