CN219162577U - Coal slime pump switching control circuit and control device - Google Patents
Coal slime pump switching control circuit and control device Download PDFInfo
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- CN219162577U CN219162577U CN202223576607.3U CN202223576607U CN219162577U CN 219162577 U CN219162577 U CN 219162577U CN 202223576607 U CN202223576607 U CN 202223576607U CN 219162577 U CN219162577 U CN 219162577U
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a slime pump switching control circuit, which is characterized in that a manual normally-open contact of a three-position two-contact knob switch, a main pump normally-open contact of a three-position four-contact knob switch, a main pump stop normally-closed button SB1, a main pump start normally-open button SB2 and coils of a main relay KM1 are connected in series; the standby pump manual control circuit and the main pump manual control circuit have the same structure; the automatic normally open contact of the three-position two-contact knob switch, the normally open contact of the float switch, the normally open contact of the other main pump of the three-position four-contact knob switch and the coil of the main relay KM1 are connected in series; the automatic control circuit of the standby pump is identical to the automatic control circuit of the main pump in structure; the advantages are that: the pump control circuit and the manual control circuit for the pump are added, so that the running stability and reliability of the coal slime pump system are improved; the switching between the two pumps and the switching of manual and automatic control are accurately realized through the knob switch, so that the production is not influenced, and the overhaul is not influenced.
Description
Technical field:
the utility model relates to the technical field of control of a coal slime pump, in particular to a coal slime pump switching control system.
The background technology is as follows:
the coal slime pump of the coal washery often has the problem of excessively frequent use in the use process, when the coal slime pump is excessively frequently used, the pump head is easy to damage or the motor is easy to burn out, so that the coal slime pump can not timely discharge the coal slime, and the pipeline for conveying the coal slime can be blocked when serious; in addition, the control system of the coal slime pump is automatically controlled through the on-off of the float switch, and when the float switch is damaged, the control of the coal slime pump cannot be realized.
When the coal slime pump or the liquid level switch fails, corresponding equipment needs to be replaced, and the operation of the coal slime pump system needs to be stopped when the system is overhauled in daily life, so that the coal slime water cannot be discharged in time, production is inevitably delayed, and the normal operation of the system is affected; when the slime pump system is put into operation again, the working quantity of the slime pump becomes large, and the stable operation of the slime pump system is affected.
The utility model comprises the following steps:
the utility model aims to provide a coal slime pump switching control circuit which is stable in operation and high in reliability.
Another object of the present utility model is to provide a coal slime pump switching control device that is easy to operate and convenient to switch.
The utility model relates to a coal slime pump switching control circuit, which is implemented by the following technical scheme: a coal slime pump switching control circuit comprises a three-position two-contact knob switch, a three-position four-contact knob switch, a main pump stop normally-closed button SB1, a main pump start normally-open button SB2, a main relay KM1, a standby pump stop normally-closed button SB3, a standby pump start normally-open button SB4, a standby relay KM2 and a floating ball switch; the manual normally open contact of the three-position two-contact knob switch, one main pump normally open contact of the three-position four-contact knob switch, the main pump stop normally closed button SB1, the main pump start normally open button SB2 and the coils of the main relay KM1 are connected in series; the manual normally open contact of the three-position two-contact knob switch, one standby pump normally open contact of the three-position four-contact knob switch, a standby pump stop normally closed button SB3, a standby pump start normally open button SB4 and coils of a standby relay KM2 are connected in series; the automatic normally open contact of the three-position two-contact knob switch, the normally open contact of the floating ball switch, the normally open contact of the other main pump of the three-position four-contact knob switch and the coil of the main relay KM1 are connected in series; the automatic normally open contact of the three-position two-contact knob switch, the normally open contact of the floating ball switch, the normally open contact of the other standby pump of the three-position four-contact knob switch and the coil of the standby relay KM2 are connected in series.
Preferably, a circuit breaker is connected in series between the positive electrode of the power supply and the input end of the three-position two-contact knob switch.
Preferably, an incoming call indicator lamp is connected in series between the circuit breaker and the negative electrode of the power supply.
Preferably, two ends of the coil of the main relay KM1 are connected with a main pump running indicator lamp in parallel, and two ends of the coil of the backup relay KM2 are connected with a backup pump running indicator lamp in parallel.
Preferably, a normally closed contact of a main pump thermal relay is connected in series between a coil of the main relay KM1 and a negative electrode of the power supply; and a normally closed contact of the backup pump thermal relay is connected in series between the coil of the backup relay KM2 and the negative electrode of the power supply.
The utility model relates to a coal slime pump switching control device, which is implemented by the following technical scheme.
Preferably, the panel of the shell is provided with the three-position two-contact knob switch, the three-position four-contact knob switch, a main pump operation indicator lamp, a standby pump operation indicator lamp, an incoming call indicator lamp, the main pump stop normally-closed button SB1, the main pump start normally-open button SB2, the standby pump stop normally-closed button SB3 and the standby pump start normally-open button SB4.
The utility model has the advantages that: the switching control circuit is added with a pump control circuit and a manual control circuit for the pump, and is put into standby pump operation after the main pump fails or needs to be overhauled, and is put into manual control after the float switch of the automatic control system fails, so that the running stability and reliability of the coal slime pump system are improved; the panel of the coal slime pump switching control device is provided with a three-position two-contact knob switch and a three-position four-contact knob switch, and the switching between the two pumps and the switching of manual and automatic control are accurately realized through the knob switch, so that the production is not influenced, and the overhaul is not influenced.
Description of the drawings:
in order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a control circuit diagram of embodiment 1 of the present utility model.
Fig. 2 is a circuit diagram of the main circuit of the slime pump of example 1.
Fig. 3 is a schematic view of a control device panel of embodiment 2.
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.
Example 1:
the coal slime pump switching control circuit shown in fig. 1 comprises a main pump manual control circuit, a standby pump manual control circuit, a main pump automatic control circuit, a standby pump automatic control circuit, a three-position two-contact knob switch and a three-position four-contact knob switch; the manual and automatic control switching of the coal slime pump is realized through the three-position two-contact knob switch, and the selection of the main pump and the standby pump is realized through the three-position four-contact knob switch.
Specifically, the main pump manual control circuit comprises a main pump stop normally closed button SB1, a main pump start normally open button SB2, a main relay KM1, a manual normally open contact 2-1 of a three-position two-contact knob switch, one main pump normally open contact 4-1 of a three-position four-contact knob switch, a main pump stop normally closed button SB1, a main pump start normally open button SB2 and coils of the main relay KM1 which are connected in series;
the manual control circuit of the standby pump has the same structure as the manual control circuit of the main pump, and the manual normally open contact 2-1 of the three-position two-contact knob switch, the normally open contact 4-2 of one standby pump of the three-position four-contact knob switch, the normally closed button SB3 of the standby pump, the normally open button SB4 of the standby pump start and the coil of the standby relay KM2 are connected in series;
the automatic control of the slime pump is realized through the on-off of the float switch 3, and the automatic control circuit structure of the main pump is as follows: the automatic normally open contact 2-2 of the three-position two-contact knob switch, the normally open contact of the floating ball switch 3, the normally open contact 4-3 of the other main pump of the three-position four-contact knob switch and the coil of the main relay KM1 are connected in series;
the automatic control circuit of the standby pump has the same structure as the automatic control circuit of the main pump, and the automatic normally-open contact 2-2 of the three-position two-contact knob switch, the normally-open contact of the floating ball switch 3, the normally-open contact 4-4 of the other standby pump of the three-position four-contact knob switch and the coil of the standby relay KM2 are connected in series.
In this embodiment, a control loop breaker QF1 is connected in series between the positive electrode of the power supply and the input end of the three-position two-contact knob switch. An incoming call indicator lamp 5 is connected in series between the control loop breaker QF1 and the negative electrode of the power supply, and the incoming call indicator lamp 5 monitors the incoming call condition of the control circuit; the main pump running indicator lamp 6 is connected in parallel with the two ends of the coil of the main relay KM1, and the standby pump running indicator lamp 7 is connected in parallel with the two ends of the coil of the standby relay KM 2.
Further, a normally closed contact FR1 of the main pump thermal relay is connected in series between a coil of the main relay KM1 and a negative electrode of the power supply; a normally closed contact FR2 of the backup pump thermal relay is connected in series between a coil of the backup relay KM2 and a negative electrode of the power supply.
As shown in fig. 2, the main control loop of the slime pump is the same in motor type, phase sequence and installation mode of the main pump M1 and the standby pump M2, and the main loop breaker QF, the normally open contact of the main relay KM1, the main pump thermal relay FR1 and the main pump M1 motor are sequentially connected in series; the main loop of the standby pump is identical to the main loop of the main pump in structure.
Example 2:
a coal slurry pump switching control device as shown in fig. 3 includes a housing 8, and a coal slurry pump switching control circuit in embodiment 1 is provided inside the housing 8.
The panel 9 of the shell 8 is provided with a three-position two-contact knob switch 2, a three-position four-contact knob switch 4, a main pump operation indicator lamp 5, a standby pump operation indicator lamp 6, an incoming call indicator lamp 7, a main pump stop normally-closed button SB1, a main pump start normally-open button SB2, a standby pump stop normally-closed button SB3 and a standby pump start normally-open button SB4.
Working principle: selecting a coal slime pump and a control mode thereof by using a coal slime pump switching control device, when a float switch 3 runs normally, rotating a three-position two-contact knob switch 2 on a panel to enable the coal slime pump to be in an automatic control state, then rotating a three-position four-contact knob switch 4 on the panel according to the running condition of the coal slime pump to select a main pump M1 and a standby pump M2, when the pumps are selected, operating indication lamps corresponding to the pumps are on, the float switch 3 controls the start and stop of the coal slime pump according to the liquid level change of a coal slime pond, the float switch 3 is closed when the liquid level is high, corresponding relay coils are electrified, and the corresponding coal slime pump is started; when the coal slime pool is at a low liquid level, the float switch 3 is disconnected, the coil relay is powered off, and the coal slime pump stops running.
When the float switch 3 is damaged, the automatic control cannot operate, the three-position two-contact knob switch 2 is turned to a manual control state, and a worker can start the main pump M1 or the standby pump M2 according to the operation condition of the on-site coal slime pump. The manual main pump control circuit and the manual standby pump control circuit have the same structure, taking starting of the main pump M1 as an example, after the three-position four-contact knob switch 4 is turned to the main pump position, the main pump starting normally-open button SB2 is pressed, the coil of the main relay KM1 is electrified, the normally-open contact of the main relay KM1 is closed, the main pump M1 is started to work, after a worker observes that the slime pond is at a low liquid level, the main pump stopping normally-closed button SB1 is pressed, and the main pump M1 stops running.
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 (7)
1. The coal slime pump switching control circuit is characterized by comprising a three-position two-contact knob switch, a three-position four-contact knob switch, a main pump stop normally-closed button SB1, a main pump start normally-open button SB2, a main relay KM1, a standby pump stop normally-closed button SB3, a standby pump start normally-open button SB4, a standby relay KM2 and a floating ball switch;
the manual normally open contact of the three-position two-contact knob switch, one main pump normally open contact of the three-position four-contact knob switch, the main pump stop normally closed button SB1, the main pump start normally open button SB2 and the coils of the main relay KM1 are connected in series;
the manual normally open contact of the three-position two-contact knob switch, the normally open contact of a standby pump of the three-position four-contact knob switch, the standby pump stop normally closed button SB3, the standby pump start normally open button SB4 and the coils of the standby relay KM2 are connected in series;
the automatic normally open contact of the three-position two-contact knob switch, the normally open contact of the floating ball switch, the normally open contact of the other main pump of the three-position four-contact knob switch and the coil of the main relay KM1 are connected in series;
the automatic normally open contact of the three-position two-contact knob switch, the normally open contact of the floating ball switch, the normally open contact of the other standby pump of the three-position four-contact knob switch and the coil of the standby relay KM2 are connected in series.
2. The coal slurry pump switching control circuit according to claim 1, wherein a circuit breaker is connected in series between a positive electrode of a power supply and an input end of the three-position two-contact rotary switch.
3. The coal slurry pump switching control circuit according to claim 2, wherein an incoming call indicator lamp is connected in series between the circuit breaker and the negative electrode of the power supply.
4. A coal slurry pump switching control circuit according to any one of claims 1 to 3, wherein main pump operation indicator lamps are connected in parallel to both ends of the coil of the main relay KM1, and standby pump operation indicator lamps are connected in parallel to both ends of the coil of the standby relay KM 2.
5. The coal slurry pump switching control circuit according to claim 2, wherein a normally closed contact of a main pump thermal relay is connected in series between a coil of the main relay KM1 and a negative electrode of the power supply; and a normally closed contact of the backup pump thermal relay is connected in series between the coil of the backup relay KM2 and the negative electrode of the power supply.
6. A coal slurry pump switching control device, which is characterized by comprising a shell, wherein the inside of the shell is provided with the coal slurry pump switching control circuit as claimed in any one of claims 1-5.
7. The device according to claim 6, wherein the three-position two-contact knob switch, the three-position four-contact knob switch, a main pump operation indicator lamp, a backup pump operation indicator lamp, an incoming call indicator lamp, the main pump stop normally-closed button SB1, the main pump start normally-open button SB2, the backup pump stop normally-closed button SB3, and the backup pump start normally-open button SB4 are provided on a panel of the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223576607.3U CN219162577U (en) | 2022-12-30 | 2022-12-30 | Coal slime pump switching control circuit and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223576607.3U CN219162577U (en) | 2022-12-30 | 2022-12-30 | Coal slime pump switching control circuit and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219162577U true CN219162577U (en) | 2023-06-09 |
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ID=86614802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223576607.3U Active CN219162577U (en) | 2022-12-30 | 2022-12-30 | Coal slime pump switching control circuit and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219162577U (en) |
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2022
- 2022-12-30 CN CN202223576607.3U patent/CN219162577U/en active Active
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