CN107762818B - Dual-water pump switching control device capable of being controlled locally and remotely for electric power tunnel - Google Patents
Dual-water pump switching control device capable of being controlled locally and remotely for electric power tunnel Download PDFInfo
- Publication number
- CN107762818B CN107762818B CN201711080826.3A CN201711080826A CN107762818B CN 107762818 B CN107762818 B CN 107762818B CN 201711080826 A CN201711080826 A CN 201711080826A CN 107762818 B CN107762818 B CN 107762818B
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- alternating
- current contactor
- intermediate relay
- water pump
- control switch
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 230000009977 dual effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a double-water pump switching control device capable of controlling a power tunnel locally and remotely, which comprises a water pump and an alternating-current contactor, wherein a three-phase main node of the alternating-current contactor C1 and a three-phase main node of the alternating-current contactor C2 are arranged in a 380V circuit in a parallel connection mode, one ends of the three-phase main node of the alternating-current contactor C1 and the three-phase main node of the alternating-current contactor C2 are respectively connected with the water pump M1 and the water pump M2, the other ends of the three-phase main node of the alternating-current contactor C1 and the three-phase main node of the alternating-current contactor C2 are connected with a thermal relay RJ in parallel, the thermal relay RJ is connected with a main coil of the alternating-current contactor C1 in series, an indicator lamp L1 is arranged on a circuit connected with a main coil of the alternating-current contactor C1 in parallel, an indicator lamp L2 is arranged on a circuit connected with the main coil of the alternating-current contactor C2 in parallel, and normally closed contacts of an intermediate relay Z1 are respectively arranged on a circuit connected with the main coil of the indicator lamp L2 in series, and two ends of the intermediate relay Z1 are respectively connected with a computer control switch S1 and a manual control switch S2. The invention has various operation modes.
Description
Technical field:
the invention relates to a switching control device, in particular to a double-water pump switching control device capable of controlling a power tunnel locally and remotely.
The background technology is as follows:
in the construction process of the electric power tunnel, the water pump is sometimes used for completing work, if only one water pump works, on the one hand, the long-time work can lead the water pump to be seriously worn, so that the service life of the water pump is reduced, on the other hand, if the water pump is damaged in the use process and needs maintenance, the work is delayed, and the construction period is prolonged, so that the two water pumps are generally used for circularly completing the work, but when the two water pumps are controlled to be started and stopped, the work can be generally completed only manually or independently by a computer, the condition of a construction site is complex, and a single operation mode is suitable for the construction site which is not changed in a transient manner.
The invention comprises the following steps:
the technical problems to be solved by the invention are as follows: the double-water pump switching control device can overcome the defects of the prior art, and can be used for controlling the power tunnel in a local and remote mode by local manual field operation or remote computer operation.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a but local and remote control 'S of electric power tunnel double water pump switching control device, includes water pump and AC contactor, the water pump includes water pump M1 and water pump M2, AC contactor includes AC contactor C1 main coil, AC contactor C1 three-phase main node, AC contactor C2 main coil and AC contactor C2 three-phase main node, AC contactor C1 three-phase main node with AC contactor C2 three-phase main node sets up in 380V circuit with parallelly connected mode, AC contactor C1 three-phase main node and AC contactor C2 three-phase main node' S one end is connected water pump M1 and water pump M2 respectively, and the other end connects in parallel with thermal relay RJ, thermal relay RJ with AC contactor C1 main coil is established ties, AC contactor C1 main coil and AC contactor C2 main coil set up in 380V circuit with parallelly connected mode, an indicator lamp L1 is arranged on a circuit connected with the main coil of the alternating-current contactor C1 in parallel, normally open contacts of an intermediate relay Z1 are arranged on a circuit connected with the main coil of the alternating-current contactor C1 in series and a circuit connected with the indicator lamp L1 in series, an indicator lamp L2 is arranged on a circuit connected with the main coil of the alternating-current contactor C2 in parallel, normally closed contacts of the intermediate relay Z1 are arranged on a circuit connected with the main coil of the alternating-current contactor C2 in series and a circuit connected with the indicator lamp L2 in series, the closing and opening of the normally closed contacts of the intermediate relay Z1 are determined by potential differences at two ends of the intermediate relay Z1, and two ends of the intermediate relay Z1 are respectively connected with a computer control switch S1 and a manual control switch S2.
The computer control switch S1 is connected with the intermediate relay ZJ1, when the NO1 pin of the computer control intermediate relay ZJ1 is in a high level, the 5 pin of the intermediate relay ZJ1 is connected with the 9 pin of the computer control switch S1, and the 5 pin of the intermediate relay ZJ1 is grounded, so that the computer control switch end on the intermediate relay is in a low level; when the NO1 pin of the intermediate relay ZJ1 is controlled to be at a low level by a computer, the 1 pin of the intermediate relay ZJ1 is connected with the 9 pin of the computer control switch S1, and the 1 pin of the intermediate relay ZJ1 is connected with VCC, so that the computer control switch end on the intermediate relay is at a high level; the manual control switch S2 may be directly connected to the high level VCC, and the manual control switch end on the intermediate relay may be at a high level, or may be directly connected to the low level, and the manual control switch end on the intermediate relay may be at a low level.
When the electric levels of the end of the computer control switch S1 and the end of the manual control switch S2 are unequal, namely, potential difference is generated, a normally open contact of the intermediate relay Z1 is closed, a normally closed contact is opened, a main coil of the alternating current contactor C1 is electrified, an indicator light L1 connected with the main coil of the alternating current contactor C1 in parallel is on, the indicator light L1 is on to light a green light, meanwhile, a three-phase main node of the alternating current contactor C1 is closed, a water pump M1 rotates to drive the water pump to work, at the moment, the three-phase main node of the alternating current contactor C2 is opened, the indicator light L2 is not on, and the water pump M2 is not operated; when the electric levels of the end of the computer control switch S1 and the end of the manual control switch S2 are equal, namely, equal electric potential is generated, a normally open contact and a normally closed contact of the intermediate relay Z1 are kept unchanged and do not act, a main coil of the alternating current contactor C2 is electrified to act, an indicator lamp L2 connected with the main coil of the alternating current contactor C2 in parallel is lighted, the indicator lamp L2 is lighted to be red, meanwhile, a three-phase main node of the alternating current contactor C2 is closed, a water pump M2 rotates to drive the water pump to work, at the moment, the three-phase main node of the alternating current contactor C1 is opened, the indicator lamp L1 is not lighted, and the water pump M1 is also not operated.
The model of the intermediate relay Z1 is JCZ22/Z, the model of the intermediate relay ZJ1 is MY4N, the model of the alternating current contactor is CJX2-0910, and the model of the thermal relay is NR2-25/Z.
The invention has the positive beneficial effects that:
the invention can realize the operation of manually starting and stopping the double water pumps and switching the double water pumps on site, can also realize the operation of controlling the starting and stopping of the double water pumps and switching the double water pumps by a remote computer, can also realize the manual and computer alternate operation, and has flexible switching in various modes, so that the two water pumps can work normally in turn, or one of the two water pumps is damaged and needs to be maintained, and the other water pump can continue to operate, thereby not delaying the construction period due to the water pumps and avoiding the resource waste caused by long construction period in the earlier stage.
Description of the drawings:
fig. 1 is a schematic circuit diagram of a dual water pump switching control device capable of being controlled locally and remotely in a power tunnel according to the present invention.
The specific embodiment is as follows:
the invention is further illustrated and described below with reference to fig. 1 and the specific examples:
examples: the double-water pump switching control device capable of controlling the local and remote ends of an electric power tunnel comprises a water pump and an alternating-current contactor, wherein the water pump comprises a water pump M1 and a water pump M2, the alternating-current contactor comprises an alternating-current contactor C1 main coil, an alternating-current contactor C1 three-phase main node, an alternating-current contactor C2 main coil and an alternating-current contactor C2 three-phase main node, the alternating-current contactor C1 three-phase main node and the alternating-current contactor C2 three-phase main node are arranged in a 380V circuit in a parallel manner, one ends of the alternating-current contactor C1 three-phase main node and the alternating-current contactor C2 three-phase main node are respectively connected with the water pump M1 and the water pump M2, the other ends of the alternating-current contactor C1 three-phase main node and the alternating-current contactor C2 three-phase main node are connected with a thermal relay RJ in parallel, the thermal relay RJ is connected with the alternating-current contactor C1 main coil in series, the alternating-current contactor C1 main coil and the alternating-current contactor C2 are arranged in the 380V circuit in a parallel manner, an indicator lamp L1 is arranged on a circuit connected with the main coil of the alternating-current contactor C1 in parallel, a normally open contact of an intermediate relay Z1 is arranged on a circuit connected with the main coil of the alternating-current contactor C1 in series and a circuit connected with the indicator lamp L1 in series, an indicator lamp L2 is arranged on a circuit connected with the main coil of the alternating-current contactor C2 in parallel, a normally closed contact of the intermediate relay Z1 is arranged on a circuit connected with the main coil of the alternating-current contactor C2 in series and a circuit connected with the indicator lamp L2 in series, and the closing and opening of the normally open contact of the intermediate relay Z1 and the normally closed contact of the intermediate relay Z1 are determined by potential differences at two ends of the intermediate relay Z1, and the two ends of the intermediate relay Z1 are respectively connected with a computer control switch S1 and a manual control switch S2.
The computer control switch S1 is connected with the intermediate relay ZJ1, when the NO1 pin of the computer control intermediate relay ZJ1 is at a high level, the 5 pin of the intermediate relay ZJ1 is connected with the 9 pin of the computer control switch S1, and the 5 pin of the intermediate relay ZJ1 is grounded, so that the computer control switch end on the intermediate relay is at a low level; when the NO1 pin of the intermediate relay ZJ1 is controlled to be at a low level by the computer, the 1 pin of the intermediate relay ZJ1 is connected with the 9 pin of the computer control switch S1, and the 1 pin of the intermediate relay ZJ1 is connected with VCC, so that the computer control switch end on the intermediate relay is at a high level; the manual control switch S2 may be directly connected to the high level VCC, and the manual control switch terminal on the intermediate relay is at a high level, or may be directly connected to the low level, and the manual control switch terminal on the intermediate relay is at a low level.
When the electric levels of the end of the computer control switch S1 and the end of the manual control switch S2 are different, namely, potential difference is generated, a normally open contact of the intermediate relay Z1 is closed, a normally closed contact is opened, a main coil of the alternating current contactor C1 is electrified, an indicator lamp L1 connected with the main coil of the alternating current contactor C1 in parallel is on, the indicator lamp L1 is on to light a green light, meanwhile, a three-phase main node of the alternating current contactor C1 is closed, the water pump M1 rotates to drive the water pump to work, at the moment, the three-phase main node of the alternating current contactor C2 is opened, the indicator lamp L2 is not on, and the water pump M2 is also not operated; when the levels of the computer control switch S1 end and the manual control switch S2 end are equal, namely equal potential is generated, the normally open contact and the normally closed contact of the intermediate relay Z1 are kept unchanged and do not act, the main coil of the alternating current contactor C2 is electrified, the indicator lamp L2 connected with the main coil of the alternating current contactor C2 in parallel is on, the indicator lamp L2 is on to be red, meanwhile, the three-phase main node of the alternating current contactor C2 is closed, the water pump M2 rotates to drive the water pump to work, at the moment, the three-phase main node of the alternating current contactor C1 is disconnected, the indicator lamp L1 is not on, and the water pump M1 is also not working.
The model of the intermediate relay Z1 is JCZ22/Z, the model of the intermediate relay ZJ1 is MY4N, the model of the alternating current contactor is CJX2-0910, and the model of the thermal relay is NR2-25/Z.
When the water pump works, the power switch is turned on, the potential difference is generated by utilizing a computer or a site manual work to enable the level of the end of the computer control switch S1 and the level of the end of the manual control switch S2 to be different, at the moment, the normally open contact of the intermediate relay Z1 is closed, the normally closed contact is opened, the main coil of the alternating current contactor C1 is electrified, the indicator lamp L1 connected with the main coil of the alternating current contactor C1 in parallel is lighted, the indicator lamp L1 is lighted green, meanwhile, the three-phase main node of the alternating current contactor C1 is closed, the water pump M1 rotates to drive the water pump to work, at the moment, the three-phase main node of the alternating current contactor C2 is opened, the indicator lamp L2 is not lighted, and the water pump M2 is not operated; or the electric levels of the end of the computer control switch S1 and the end of the manual control switch S2 are equal by utilizing a computer or a site manual work, so that an equipotential is generated, at the moment, the normally open contact and the normally closed contact of the intermediate relay Z1 are kept unchanged and do not act, the main coil of the alternating current contactor C2 is electrified, the indicator lamp L2 connected with the main coil of the alternating current contactor C2 in parallel is lighted, the indicator lamp L2 is lighted in red, meanwhile, the three-phase main node of the alternating current contactor C2 is closed, the water pump M2 rotates to drive the water pump to work, at the moment, the three-phase main node of the alternating current contactor C1 is disconnected, the indicator lamp L1 is not lighted, the water pump M1 is not operated, and the alternate work of two water pumps is realized.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variation and variation of the above embodiment according to the technical matter of the present invention still fall within the scope of the technical solution of the present invention.
Claims (3)
1. The utility model provides a but electric power tunnel local and remote control's double water pump switching control device, includes water pump and ac contactor, characterized by: the water pump comprises a water pump M1 and a water pump M2, the alternating-current contactor comprises an alternating-current contactor C1 main coil, an alternating-current contactor C1 three-phase main node, an alternating-current contactor C2 main coil and an alternating-current contactor C2 three-phase main node, the alternating-current contactor C1 three-phase main node and the alternating-current contactor C2 three-phase main node are arranged in a 380V circuit in a parallel connection mode, one ends of the alternating-current contactor C1 three-phase main node and the alternating-current contactor C2 three-phase main node are respectively connected with the water pump M1 and the water pump M2, the other ends of the alternating-current contactor C1 three-phase main node and the alternating-current contactor C2 three-phase main node are connected with a thermal relay RJ in parallel connection, the thermal relay RJ is connected with the alternating-current contactor C1 main coil in series, the alternating-current contactor C1 main coil and the alternating-current contactor C2 main coil are arranged in the 380V circuit in a parallel connection mode, an indicator lamp L1 is arranged on a circuit connected with the main coil of the alternating-current contactor C1 in parallel, normally open contacts of an intermediate relay Z1 are arranged on a circuit connected with the main coil of the alternating-current contactor C1 in series and a circuit connected with the indicator lamp L1 in series, an indicator lamp L2 is arranged on a circuit connected with the main coil of the alternating-current contactor C2 in parallel, normally closed contacts of the intermediate relay Z1 are arranged on a circuit connected with the main coil of the alternating-current contactor C2 in series and a circuit connected with the indicator lamp L2 in series, the closing and opening of the normally closed contacts of the intermediate relay Z1 are determined by potential differences at two ends of the intermediate relay Z1, and two ends of the intermediate relay Z1 are respectively connected with a computer control switch S1 and a manual control switch S2.
2. The power tunnel locally and remotely controllable dual water pump switching control device of claim 1, wherein: the computer control switch S1 is connected with the intermediate relay ZJ1, when the NO1 pin of the computer control intermediate relay ZJ1 is in a high level, the 5 pin of the intermediate relay ZJ1 is connected with the 9 pin of the computer control switch S1, and the 5 pin of the intermediate relay ZJ1 is grounded, so that the computer control switch end on the intermediate relay is in a low level; when the NO1 pin of the intermediate relay ZJ1 is controlled to be at a low level by a computer, the 1 pin of the intermediate relay ZJ1 is connected with the 9 pin of the computer control switch S1, and the 1 pin of the intermediate relay ZJ1 is connected with VCC, so that the computer control switch end on the intermediate relay is at a high level; the manual control switch S2 may be directly connected to the high level VCC, and the manual control switch end on the intermediate relay may be at a high level, or may be directly connected to the low level, and the manual control switch end on the intermediate relay may be at a low level.
3. The power tunnel locally and remotely controllable dual water pump switching control device of claim 1, wherein: the model of the intermediate relay Z1 is JCZ22/Z, the model of the intermediate relay ZJ1 is MY4N, the model of the alternating current contactor is CJX2-0910, and the model of the thermal relay is NR2-25/Z.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080826.3A CN107762818B (en) | 2017-11-06 | 2017-11-06 | Dual-water pump switching control device capable of being controlled locally and remotely for electric power tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080826.3A CN107762818B (en) | 2017-11-06 | 2017-11-06 | Dual-water pump switching control device capable of being controlled locally and remotely for electric power tunnel |
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| Publication Number | Publication Date |
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| CN107762818A CN107762818A (en) | 2018-03-06 |
| CN107762818B true CN107762818B (en) | 2023-10-27 |
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| CN201711080826.3A Active CN107762818B (en) | 2017-11-06 | 2017-11-06 | Dual-water pump switching control device capable of being controlled locally and remotely for electric power tunnel |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109257857B (en) * | 2018-09-27 | 2024-04-09 | 郑州祥和集团有限公司 | Manual double-control lighting circuit of tunnel double-water pump and computer double-control lighting circuit |
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| CN207485651U (en) * | 2017-11-06 | 2018-06-12 | 郑州华力信息技术有限公司 | Electric power tunnel can locally and the double water pump switching control of remote control |
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2017
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| US4217482A (en) * | 1977-05-16 | 1980-08-12 | Mcgraw-Edison Company | Electric cooking apparatus with safety control |
| US5909352A (en) * | 1996-05-29 | 1999-06-01 | S.J. Electro Systems, Inc. | Alternator circuit for use in a liquid level control system |
| JPH1066250A (en) * | 1996-08-23 | 1998-03-06 | Daiwa Reiki Kogyo Kk | Open and negative phase protective circuit for three-phase ac power source |
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Effective date of registration: 20230918 Address after: 450000 9 Huaihe Road, Zhengzhou, Henan Applicant after: ZHENGZHOU XIANGHE GROUP Co.,Ltd. Applicant after: STATE GRID HENAN ELECTRIC POWER COMPANY ZHENGZHOU POWER SUPPLY Co. Applicant after: State Grid Corporation of China Address before: Room 62, 12th Floor, Building 9, East Zone, University Science and Technology Park, No. 289 West Third Ring Road, High tech Zone, Zhengzhou City, Henan Province, 450001 Applicant before: ZHENGZHOU HUALI INFORMATION TECHNOLOGY Co.,Ltd. Applicant before: STATE GRID HENAN ELECTRIC POWER COMPANY ZHENGZHOU POWER SUPPLY Co. Applicant before: State Grid Corporation of China |
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