CN218844555U - Control system for synchronously starting and stopping multiple pumps - Google Patents
Control system for synchronously starting and stopping multiple pumps Download PDFInfo
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- CN218844555U CN218844555U CN202223066556.XU CN202223066556U CN218844555U CN 218844555 U CN218844555 U CN 218844555U CN 202223066556 U CN202223066556 U CN 202223066556U CN 218844555 U CN218844555 U CN 218844555U
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 86
- 230000001012 protector Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of control, a control system that many pumps opened in step is disclosed to solve the problem that exists in two pumps synchronous start of prior art and the stop, this control system is through increasing control circuit, adopts auxiliary relay to carry out parallel control to the start of single equipment and stop button normal open point and normal close point, realizes two or many equipment synchronous start and the operation purpose that stops, prevents that two equipment from successively starting the mechanical damage that causes another equipment. Can open simultaneously and stop control circuit accessible cable with the synchronization and lead the signal to the other places of the on-the-spot operation of being convenient for of production to can realize the different control requirements of controlling, synchro control and difference control apart from many places, and can reach the various production control demands of on-the-spot production demand, avoid starting respectively and the impact negative effect of stopping the process to equipment, realize the multiple purpose effect that improves equipment steady operation, reduces the fault rate and improve production efficiency.
Description
Technical Field
The utility model relates to a control technical field, concretely relates to many pumps open control system who stops in step.
Background
According to the technical scheme, two hydraulic motors of the 3# Kaldo furnace in the copper smelting workshop operate simultaneously when normal, and the furnace body is driven to rotate to realize the uniform rotation of the furnace body. When the hydraulic pump is started, because the control loops of the two hydraulic pumps are designed independently, when the 1# pump and the 2# pump are started or stopped, reverse impact on the other pump body is easily caused, the structure of a mechanical element in the pump body is often damaged in the process, and mechanical faults of the pump body are frequent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a control system that many pumps open in step in order to solve the problem that exists in two pumps synchronous start of prior art and the stop.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a control system for synchronous start and stop of multiple pumps comprises a first oil pump control loop and a second oil pump control loop, wherein the first oil pump control loop and the second oil pump control loop respectively comprise a current transformer TA connected with an oil pump, the current transformer TA is connected with an alternating current contactor KM normally open contact, the alternating current contactor KM normally open contact is connected with a first breaker QF, a terminal of the first breaker QF is connected with 380V voltage, a terminal fuse FU is further connected between the alternating current contactor KM normally open contact and the first breaker QF, the terminal fuse FU is connected with an emergency stop switch TSS, the emergency stop switch TSS is connected with a change-over switch SA, the change-over switch SA is connected with a stop switch SS, the stop switch SS is connected with a start switch SF, the alternating current contactor KM normally open contact is connected between two terminals of the start switch SF in parallel, the start switch SF is further connected with an alternating current contactor KM, and the other terminal of the alternating current contactor KM is connected with an N line;
the conversion switch SA terminal is also connected with a synchronous breaker TBQF, a synchronous starting intermediate relay TBQKA and a synchronous stopping intermediate relay TBTKA are connected in parallel between the synchronous breaker TBQF and the N line terminal, a synchronous starting switch TBSF is connected between the synchronous starting intermediate relay TBQKA and the synchronous breaker TBQF, and a synchronous stopping switch TBSS is connected between the synchronous stopping intermediate relay TBTKA and the synchronous breaker TBQF;
a first synchronous starting intermediate relay normally-open contact TBQKA1 is connected in parallel between two ends of a starting switch SF of the first oil pump control loop, and a second synchronous starting intermediate relay normally-open contact TBQKA2 is connected in parallel between two ends of a starting switch SF of the second oil pump control loop;
a first synchronous stopping intermediate relay normally closed contact TBTKA1 is connected in parallel between a change-over switch SA and a stop switch SS of the first oil pump control loop, and a second synchronous stopping intermediate relay normally closed contact TBTKA2 is connected in parallel between a change-over switch SA and a stop switch SS of the second oil pump control loop.
Further, a motor protector KH is connected in parallel with the current transformer TA, and a normally closed contact of the motor protector KH is connected between the alternating current contactor KM and the starting switch SF.
Furthermore, a first pump signal lamp 1-HG3 is connected between the alternating current contactor KM and the starting switch SF of the first oil pump control loop, a second pump signal lamp 2-HG3 is connected between the alternating current contactor KM and the starting switch SF of the second oil pump control loop, and the other ends of the first pump signal lamp 1-HG3 and the second pump signal lamp 2-HG3 are connected with the N lines of the respective control loops.
Further, a first signal lamp HG1 and a second signal lamp HG2 are connected in parallel between the two ends of the ac contactor KM.
Further, terminal fuses FU of the first oil pump control circuit and the second oil pump control circuit are connected with normally closed contacts of an alternating current contactor KM, the normally closed contacts of the alternating current contactor KM are connected with a group of third signal lamps HW2 in parallel, and the third signal lamps HW2 are connected with an N line.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses an increase control circuit, adopt auxiliary relay to carry out parallel control to the start-up of single equipment and stop button normal open point and normal close point, realize two or many equipment synchronous start and the operation purpose that stops, prevent that two equipment from successively starting the mechanical damage that causes another equipment.
The utility model discloses can realize that two or many the same kind equipment can the independent control open and stop, also can open the control purpose of opening the operation in step.
The utility model discloses open simultaneously and stop other places that control circuit accessible cable causes the operation of being convenient for with the signal to the production site to can realize the different control requirements of controlling, synchro control and difference control many places of distance, and can reach the various production of on-the-spot production demand and control the demand, avoid starting respectively and the impact negative effect of stopping process to equipment, realize improve equipment steady operation, reduce the fault rate and improve production efficiency's multiple purpose effect.
Drawings
Fig. 1 shows a control circuit of the first oil pump and the second oil pump of the present invention.
Fig. 2 is a schematic diagram of the synchronous control of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1-2, a control system that many pumps open and shut down in step, including an oil pump control return circuit, no. two oil pump control return circuits, no. one oil pump control return circuit, no. two oil pump control return circuits all include the current transformer TA of being connected with the oil pump, current transformer TA connects in parallel has motor protector KH, current transformer TA is connected with AC contactor KM normally open contact, AC contactor KM normally open contact is connected with first circuit breaker QF, the terminal and the 380V voltage connection of first circuit breaker QF, still be connected with terminal fuse FU between AC contactor KM normally open contact and the first circuit breaker QF, terminal FU is connected with emergency stop switch TSS, emergency stop switch TSS is located control room operation panel + CT1, emergency stop switch TSS is connected with change-over switch SA, change-over switch SA is connected with stop switch SS, stop switch SS is connected with start switch SS, the change-over switch SA button, the start switch SF button all is located AC1 on-the-site control case, the AC contactor HG is connected with AC1 normally open contact of AC contactor HG2, the AC contactor HG is connected with the second terminal of AC contactor HG on-site control contactor HG, the AC contactor HG is connected with the second signal lamp normally open contact, the AC contactor HG on-site control contactor, the AC contactor HG, the AC contactor.
Terminal fuses FU of the first oil pump control circuit and the second oil pump control circuit are connected with normally closed contacts of an alternating current contactor KM, the normally closed contacts of the alternating current contactor KM are connected with a group of third signal lamps HW2 which are connected in parallel, the third signal lamps HW2 are connected with an N line, and the third signal lamps HW2 are located in an AC1 field control box.
The conversion switch SA terminal is further connected with a synchronous breaker TBQF, a synchronous breaker TBQF contact button is located in an AC1 field control box, a synchronous starting intermediate relay TBQKA and a synchronous stopping intermediate relay TBTKA are connected between the synchronous breaker TBQF and the N line terminal in parallel, the synchronous starting intermediate relay TBQKA and the synchronous stopping intermediate relay TBTKA are located in the AC1 field control box, a synchronous starting switch TBSF is connected between the synchronous starting intermediate relay TBQKA and the synchronous breaker TBQF, and a synchronous stopping switch TBSS is connected between the synchronous stopping intermediate relay TBTKA and the synchronous breaker TBQF. The synchronous start switch TBSF button and the synchronous stop switch TBSS button are positioned on the console + CT1 of the control room.
A first synchronous starting intermediate relay normally-open contact TBQKA1 is connected in parallel between two ends of a starting switch SF of the first oil pump control loop, and a second synchronous starting intermediate relay normally-open contact TBQKA2 is connected in parallel between two ends of a starting switch SF of the second oil pump control loop. A first synchronous stopping intermediate relay normally closed contact TBTKA1 is connected in parallel between a change-over switch SA and a stop switch SS of a first oil pump control loop, and a second synchronous stopping intermediate relay normally closed contact TBTKA2 is connected in parallel between a change-over switch SA and a stop switch SS of a second oil pump control loop. The buttons of the first synchronous starting intermediate relay normally-open contact TBQKA1, the second synchronous starting intermediate relay normally-open contact TBQKA2, the first synchronous stopping intermediate relay normally-closed contact TBTKA1 and the second synchronous stopping intermediate relay normally-closed contact TBTKA2 are located in the AC1 field control box.
A first pump signal lamp 1-HG3 is connected between an alternating current contactor KM and a starting switch SF of a first oil pump control loop, a second pump signal lamp 2-HG3 is connected between an alternating current contactor KM and a starting switch SF of a second oil pump control loop, and the other ends of the first pump signal lamp 1-HG3 and the second pump signal lamp 2-HG3 are connected with N lines of respective control loops. The first pump signal lamps 1-HG3 and the second pump signal lamps 2-HG3 are positioned on the control room operation table + CT1.
This oil pump and No. two oil pump master control return circuits distribution element install in the switch board, and control circuit installs in the on-the-spot control box. The synchronous start-stop control loop is installed in the remote control room, so that the control room can conveniently perform centralized remote control operation. This novel patent technique mainly embodies in long-range centralized control part, realizes the synchronous start and the stop operation of an oil pump and No. two oil pumps.
The synchronous control loop power supply is taken from a first pump control loop, and the power supply is switched to the synchronous start-stop loop through the remote end of the change-over switch SA.
The synchronous starting intermediate relay TBQKA and the synchronous stopping intermediate relay TBTKA are respectively supplied with a synchronous breaker TBQF1P6A for access, and the operation principle is respectively through a synchronous stopping switch TBSS button and a synchronous starting switch TBSF button.
The specific synchronous operation steps are as follows:
firstly, transfer switches SA on a first oil pump field control box and a second oil pump field control box are respectively driven to remote positions, a synchronous breaker TBQF1P6A is switched on, a synchronous start button TBSF is pressed down during synchronous start, an intermediate relay TBQKA is synchronously started to be electrified at the moment, a normally open contact TBQKA1 of a first synchronous start intermediate relay in a first oil pump control loop is sucked, a normally open contact TBQKA2 of a second synchronous start intermediate relay in a second oil pump control loop is sucked, electromagnetic actions of a contactor KM of the first oil pump and a contactor KM of the second oil pump are synchronously and respectively realized, the AC contactor KM of the first oil pump and the AC contactor KM main loop of the second oil pump are synchronously and respectively switched on, required AC 380V power supplies are respectively supplied to a first oil pump motor and a second oil pump motor, the motors run, and synchronous start operation of the two oil pumps is realized.
When the oil pump is stopped, the synchronous stop button TBSS is pressed, the synchronous stop intermediate relay TBTKA is powered on, the first synchronous stop intermediate relay normally-closed contact TBTKA1 in the first oil pump control loop is opened, the second synchronous stop intermediate relay normally-closed contact TBTKA2 in the second oil pump control loop is opened, the alternating current contactor KM of the first oil pump and the alternating current contactor KM of the second oil pump are disconnected, and the two oil pumps stop synchronously.
The synchronous start button TBSF, the synchronous stop button TBSS and the operation indicating lamps 1-HG3 and 2-HG3 are all arranged in the centralized control room. Two signal lamps are respectively connected with a first oil pump and a second oil pump control circuit, so that the running states of the first oil pump and the second oil pump are respectively realized, and the operating state of the two oil pumps can be conveniently confirmed by an operator.
When SA change over switches in the control loops of the two oil pumps are switched to the on-site position, on-site start-stop operation of the two oil pumps can be realized, and remote synchronous start-stop operation cannot be carried out. When SA in the two oil pump control loops is driven to a remote position, remote synchronous operation can be achieved through the synchronous start-stop control button of the control room operating platform. At the moment, the two oil pumps can be respectively stopped by a stop switch button SS on the site control box, and can be respectively started by a start switch SF button of the control box when necessary, so that the dual-function functions of remote synchronous start-stop and site respective start-stop operation are achieved. Achieving the necessary operation under the emergency condition of the production field.
Claims (5)
1. The utility model provides a control system that synchronous start-stop of many pumps which characterized in that: the system comprises a first oil pump control loop and a second oil pump control loop, wherein the first oil pump control loop and the second oil pump control loop both comprise a current transformer TA connected with an oil pump, the current transformer TA is connected with an alternating current contactor KM normally open contact, the alternating current contactor KM normally open contact is connected with a first breaker QF, a terminal of the first breaker QF is connected with 380V voltage, a terminal fuse FU is further connected between the alternating current contactor KM normally open contact and the first breaker QF, the terminal fuse FU is connected with an emergency stop switch TSS, the emergency stop switch TSS is connected with a change-over switch SA, the change-over switch SA is connected with a stop switch SS, the stop switch SS is connected with a start switch SF, the alternating current contactor KM normally open contact is connected between two terminals of the start switch SF in parallel, the start switch SF is also connected with an alternating current contactor KM, and the other terminal of the alternating current contactor KM is connected with an N line;
the conversion switch SA terminal is also connected with a synchronous breaker TBQF, a synchronous starting intermediate relay TBQKA and a synchronous stopping intermediate relay TBTKA are connected in parallel between the synchronous breaker TBQF and the N line terminal, a synchronous starting switch TBSF is connected between the synchronous starting intermediate relay TBQKA and the synchronous breaker TBQF, and a synchronous stopping switch TBSS is connected between the synchronous stopping intermediate relay TBTKA and the synchronous breaker TBQF;
a first synchronous starting intermediate relay normally-open contact TBQKA1 is connected in parallel between two ends of a starting switch SF of the first oil pump control loop, and a second synchronous starting intermediate relay normally-open contact TBQKA2 is connected in parallel between two ends of a starting switch SF of the second oil pump control loop;
a first synchronous stop intermediate relay normally closed contact TBTKA1 is connected in parallel between a change-over switch SA and a stop switch SS of the first oil pump control loop, and a second synchronous stop intermediate relay normally closed contact TBTKA2 is connected in parallel between a second oil pump control loop change-over switch SA and the stop switch SS.
2. The system as claimed in claim 1, wherein the control system comprises: the current transformer TA is connected with a motor protector KH in parallel, and a motor protector KH normally-closed contact is connected between the alternating current contactor KM and the starting switch SF.
3. The system for controlling the synchronous start and stop of the plurality of pumps as claimed in claim 2, wherein: a first pump signal lamp 1-HG3 is connected between an alternating current contactor KM and a starting switch SF of the first oil pump control loop, a second pump signal lamp 2-HG3 is connected between the alternating current contactor KM and the starting switch SF of the second oil pump control loop, and the other ends of the first pump signal lamp 1-HG3 and the second pump signal lamp 2-HG3 are connected with N lines of respective control loops.
4. The system for controlling the synchronous start and stop of a plurality of pumps as claimed in claim 3, wherein: and a first signal lamp HG1 and a second signal lamp HG2 are connected in parallel between the two ends of the alternating current contactor KM.
5. The system as claimed in claim 4, wherein the control system comprises: terminal fuses FU of the first oil pump control circuit and the second oil pump control circuit are connected with normally closed contacts of an alternating current contactor KM, the normally closed contacts of the alternating current contactor KM are connected with a group of third signal lamps HW2 connected in parallel, and the third signal lamps HW2 are connected with an N line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223066556.XU CN218844555U (en) | 2022-11-18 | 2022-11-18 | Control system for synchronously starting and stopping multiple pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223066556.XU CN218844555U (en) | 2022-11-18 | 2022-11-18 | Control system for synchronously starting and stopping multiple pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218844555U true CN218844555U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223066556.XU Active CN218844555U (en) | 2022-11-18 | 2022-11-18 | Control system for synchronously starting and stopping multiple pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218844555U (en) |
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2022
- 2022-11-18 CN CN202223066556.XU patent/CN218844555U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240412 Address after: 737199 No. 2 Jianshe Road, Jinchuan District, Jinchang City, Gansu Province (east of Beijing Road, west of Heya Road, south of Guiyang Road) Patentee after: Jinchuan Group Copper Gui Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |