CN219266807U - Device for remotely switching and controlling pipeline electric valve - Google Patents
Device for remotely switching and controlling pipeline electric valve Download PDFInfo
- Publication number
- CN219266807U CN219266807U CN202320613981.1U CN202320613981U CN219266807U CN 219266807 U CN219266807 U CN 219266807U CN 202320613981 U CN202320613981 U CN 202320613981U CN 219266807 U CN219266807 U CN 219266807U
- Authority
- CN
- China
- Prior art keywords
- valve
- electric valve
- contactor
- control
- automatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a device for remotely switching and controlling pipeline valves, which comprises: the system comprises a valve control console, a control cabinet and an electric valve, wherein the valve control console is installed in a central control room, and the control cabinet is installed near the electric valve on site and connected with the electric valve. An automatic/manual change-over switch and an on/off selection change-over switch are arranged on the valve control console; the automatic/manual change-over switch is used for switching the manual control mode or the automatic control mode; in an automatic control mode, a PLC in a control cabinet controls the opening and closing of the electric valve according to a preset control program; in the manual control mode, the opening and closing of the electric valve is controlled by an on/off selection changeover switch on the valve console. The device for remotely switching and controlling the pipeline valve realizes the remote switching and controlling of the electric valve, and provides a solution for the fact that on-site workers cannot remotely switch and control the valve to be opened and closed.
Description
Technical Field
The utility model relates to the technical field of valve control, in particular to a device for remotely switching and controlling an electric valve of a pipeline.
Background
On the gas material pipeline, an electric valve is generally used for controlling the gas flow, and the general use mode is that a switch change-over switch is arranged nearby the valve, and the valve is switched on and off by observing the pressure instrument parameter of the on-site pipeline, so that the flow adjustment is realized. Thus, at least two personnel are required to cooperate on site, and if a plurality of valves are required to be adjusted, the operation takes a long time and the efficiency is low. At the same time, in some harmful environments, workers are exposed to the field for a long time to perform valve operation, and the valve is also unfavorable to the body.
Disclosure of Invention
The utility model aims at overcoming the technical defects in the prior art and provides a device for remotely switching and controlling an electric valve of a pipeline.
The technical scheme adopted for realizing the purpose of the utility model is as follows:
an apparatus for remotely switching and controlling a plumbing valve, the apparatus comprising: the control cabinet is arranged near the electric valve on site and is connected with the electric valve;
an automatic/manual change-over switch XF1 and an on/off selection change-over switch XF2 are arranged on the valve control console;
the control cabinet is internally provided with a PLC, a contactor KM1 and a contactor KM2, three-phase electricity L1, L2 and L3 are connected with the opening control end of the electric valve through three normally open contacts of the contactor KM1, and three-phase electricity L1, L2 and L3 are connected with the closing control end of the electric valve through three normally open contacts of the contactor KM 2;
the public end of the automatic/manual change-over switch XF1 is connected with one phase of L1, L2 and L3, the first contact of the automatic/manual change-over switch XF1 is connected with the input end of the PLC, the second contact of the automatic/manual change-over switch XF1 is connected with the public end of the on/off selection change-over switch XF2, and the first contact of the on/off selection change-over switch XF2 is connected with an electric valve opening control circuit formed by connecting a normally closed contact of a contactor KM2 and a coil of the contactor KM1 in series; the second contact of the on/off selection transfer switch XF2 is connected with an electric valve closing control circuit formed by connecting a normally closed contact of the contactor KM1 and a coil of the contactor KM2 in series; and the electric valve opening control circuit and the electric valve closing control circuit are both connected with one output end of the PLC.
In the above technical scheme, a breaker Q1 is disposed in the control cabinet, and three-phase electricity L1, L2, L3 is connected to the contactor KM1 and the contactor KM2 through the breaker Q1.
In the above technical scheme, a thermal relay FR1 is arranged in the control cabinet, and the contactor KM1 and the contactor KM2 are connected with the electric valve through the thermal relay FR 1.
In the above technical solution, the automatic/manual change-over switch adopts a knob type two-position change-over switch.
In the above technical solution, the on/off selection switch adopts a knob type two-position switch.
In the technical scheme, the electric valve adopts a three-phase electric valve.
Compared with the prior art, the utility model has the beneficial effects that:
1. the device for remotely switching and controlling the pipeline valve realizes the remote switching and controlling of the electric valve, and provides a solution for the fact that on-site workers cannot remotely switch and control the valve to be opened and closed.
2. The device for remotely switching and controlling the pipeline valve disclosed by the utility model is used for controlling the valve to be opened and closed closely, so that the problem of low efficiency is solved.
Drawings
Fig. 1 is a schematic diagram of a device for remotely switching and controlling a pipeline valve according to the present utility model.
Fig. 2 is a schematic diagram of the control principle of the device for remotely switching and controlling pipeline valves according to the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
An apparatus for remotely switching and controlling a plumbing valve, see fig. 1 and 2, the apparatus comprising: the valve control cabinet 1 is installed in a central control room, and the control cabinet 2 is installed near the electric valve 3 on site and connected with the electric valve 3.
An automatic/manual change-over switch XF1 and an on/off selection change-over switch XF2 are arranged on the valve console 1; the automatic/manual transfer switch XF1 is used for switching a manual control mode or an automatic control mode; in the automatic control mode, the PLC in the control cabinet 2 controls the opening and closing of the electric valve 3 according to a preset control program; in the manual control mode, the opening and closing of the electric valve 3 is controlled by an on/off selection changeover switch XF2 on the valve console 1.
A programmable logic controller PLC, a breaker Q1, a contactor KM2 and a thermal relay FR1 are arranged in the control cabinet 2, wherein the electric valve 3 adopts a three-phase electric valve 3, and three-phase electricity L1, L2 and L3 are adopted for power supply; three-phase electricity L1, L2, L3 are connected to the input ends of three normally open contacts of the contactor KM1 and the input ends of three normally open contacts of the contactor KM2 through the circuit breaker Q1, the output ends of three normally open contacts of the contactor KM1 are connected with the opening control end of the electric valve 3 through the thermal relay FR1 (namely, the motor for controlling the electric valve 3 operates in the forward direction), and the output ends of three normally open contacts of the contactor KM2 are connected with the closing control end of the electric valve 3 through the thermal relay FR1 (namely, the motor for controlling the electric valve 3 operates in the reverse direction).
The public end of the automatic/manual change-over switch XF1 is connected with one phase of L1, L2 and L3, the first contact of the automatic/manual change-over switch XF1 is connected with the input end of the programmable logic controller PLC, when the automatic/manual change-over switch XF1 is switched to the first contact, the automatic control mode is selected, at the moment, the input end of the PLC collects an electric input signal, and the PLC executes a preset control program for the electric valve 3; the second contact of the automatic/manual change-over switch XF1 is connected with the public end of the on/off selection change-over switch XF2, and the first contact of the on/off selection change-over switch XF2 is connected with an electric valve opening control circuit formed by connecting a normally closed contact of the contactor KM2 and a coil of the contactor KM1 in series; the second contact of the on/off selection transfer switch XF2 is connected with an electric valve closing control circuit formed by connecting a normally closed contact of the contactor KM1 and a coil of the contactor KM2 in series; in addition, the electric valve opening control circuit and the electric valve closing control circuit are both connected with one output end of the programmable logic controller PLC, so that in the automatic control mode, the output end of the PLC can be conducted by selecting the electric valve opening control circuit or the electric valve closing control circuit to control the electric valve to be opened or closed.
Specifically, the working principle of the device is as follows:
automatic control mode:
the automatic/manual change-over switch XF1 on the valve console 1 is switched to an automatic control mode, at the moment, the public end of the automatic/manual change-over switch XF1 is communicated with the first contact, the input end of the PLC collects an electric input signal, the PLC executes a preset automatic control program for the electric valve 3, and the output end of the PLC is enabled to be communicated through selecting the electric valve opening control circuit or the electric valve closing control circuit so as to control the electric valve to be opened or closed. Specifically, referring to fig. 2, when the output end of the PLC selects the electric valve opening control circuit to be turned on, the coil of the contactor KM1 is electrically attracted at this time, so that three normally open contacts KM1 on the power supply circuit of the electric valve 3 are electrically closed, the motor of the electric valve 3 is operated in the forward direction, and the electric valve 3 is opened; when the output end of the PLC selects the closing control circuit of the electric valve to be conducted, the coil of the contactor KM2 is electrified and attracted, and then three normally open contacts of the contactor KM2 on the power supply circuit of the electric valve 3 are closed, so that the motor of the electric valve 3 runs reversely, and the electric valve 3 is closed.
Manual control mode:
the automatic/manual transfer switch XF1 on the valve console 1 is set to the manual control mode, at which time the common terminal of the automatic/manual transfer switch XF1 is conducted to its second contact.
In the manual control mode, the opening and closing of the electric valve 3 is controlled by manually switching the on/off selection changeover switch XF 2. Specifically, referring to fig. 2, when the on/off selector switch XF2 is switched to the first contact, an electric valve opening control circuit formed by connecting a normally closed contact of the contactor KM2 and a coil of the contactor KM1 in series is conducted, at this time, the coil of the contactor KM1 is electrically attracted, and three normally open contacts of the contactor KM1 on a power supply circuit of the electric valve 3 are closed, so that a motor of the electric valve 3 is operated in a forward direction, and the electric valve 3 is opened; when the on/off selection transfer switch XF2 is switched to the second contact, an electric valve closing control circuit formed by connecting a normally closed contact of the contactor KM1 and a coil of the contactor KM2 in series is conducted, at the moment, the coil of the contactor KM2 is electrified and sucked, and then three normally open contacts of the contactor KM2 on a power supply circuit of the electric valve 3 are closed, so that a motor of the electric valve 3 reversely operates, and the electric valve 3 is closed.
In addition, when the electric valve opening control circuit and the electric valve closing control circuit are alternatively gated, the safety is ensured (namely, when the electric valve opening control circuit is conducted, the normally closed contact of the contactor KM1 on the electric valve closing control circuit is disconnected, and when the electric valve closing control circuit is conducted, the normally closed contact of the contactor KM2 on the electric valve opening control circuit is disconnected).
The foregoing has described exemplary embodiments of the utility model, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the utility model may be made by those skilled in the art without departing from the spirit of the utility model.
Claims (6)
1. A device for remotely switching and controlling a pipeline valve, characterized in that: the device comprises a valve control console, a control cabinet and an electric valve, wherein the valve control console is arranged in a central control room, and the control cabinet is arranged near the electric valve on site and connected with the electric valve;
an automatic/manual change-over switch XF1 and an on/off selection change-over switch XF2 are arranged on the valve control console;
the control cabinet is internally provided with a PLC, a contactor KM1 and a contactor KM2, three-phase electricity L1, L2 and L3 are connected with the opening control end of the electric valve through three normally open contacts of the contactor KM1, and three-phase electricity L1, L2 and L3 are connected with the closing control end of the electric valve through three normally open contacts of the contactor KM 2;
the public end of the automatic/manual change-over switch XF1 is connected with one phase of L1, L2 and L3, the first contact of the automatic/manual change-over switch XF1 is connected with the input end of the PLC, the second contact of the automatic/manual change-over switch XF1 is connected with the public end of the on/off selection change-over switch XF2, and the first contact of the on/off selection change-over switch XF2 is connected with an electric valve opening control circuit formed by connecting a normally closed contact of a contactor KM2 and a coil of the contactor KM1 in series; the second contact of the on/off selection transfer switch XF2 is connected with an electric valve closing control circuit formed by connecting a normally closed contact of the contactor KM1 and a coil of the contactor KM2 in series; and the electric valve opening control circuit and the electric valve closing control circuit are both connected with one output end of the PLC.
2. The device for remotely switching and controlling a pipeline valve according to claim 1, wherein a circuit breaker Q1 is arranged in the control cabinet, and three-phase electricity L1, L2 and L3 is connected with a contactor KM1 and a contactor KM2 through the circuit breaker Q1.
3. The device for remotely switching and controlling a pipeline valve according to claim 1, wherein a thermal relay FR1 is arranged in the control cabinet, and the contactor KM1 and the contactor KM2 are connected with the electric valve through the thermal relay FR 1.
4. The apparatus for remotely switching and controlling a plumbing valve of claim 1, wherein said automatic/manual switch is a rotary two-position switch.
5. The apparatus for remotely switching and controlling a plumbing valve of claim 1, wherein said on/off selector switch is a rotary knob type two-position switch.
6. The apparatus for remotely switching and controlling a pipeline valve according to claim 1, wherein the electrically operated valve is a three-phase electrically operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320613981.1U CN219266807U (en) | 2023-03-25 | 2023-03-25 | Device for remotely switching and controlling pipeline electric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320613981.1U CN219266807U (en) | 2023-03-25 | 2023-03-25 | Device for remotely switching and controlling pipeline electric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219266807U true CN219266807U (en) | 2023-06-27 |
Family
ID=86862246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320613981.1U Active CN219266807U (en) | 2023-03-25 | 2023-03-25 | Device for remotely switching and controlling pipeline electric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219266807U (en) |
-
2023
- 2023-03-25 CN CN202320613981.1U patent/CN219266807U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102506485B (en) | Self-holding four-way valve control circuit of air conditioner and control method thereof | |
| CN203297725U (en) | Pneumatic single-action control valve hand-operated and automatic control system | |
| CN219266807U (en) | Device for remotely switching and controlling pipeline electric valve | |
| CN202196301U (en) | Seepage draining intelligence control system of water power station | |
| CN201187617Y (en) | Valve electric device | |
| CN110159824A (en) | A kind of multifunctional motor-driven switch valve controller | |
| CN202196292U (en) | Hydropower station technical water supply intelligent control system | |
| CN208969492U (en) | The compatible local control circuit for switching and remotely controlling | |
| CN210373974U (en) | Linkage device for controlling fan and electric valve | |
| CN111312482B (en) | Transformer respirator system | |
| CN204141793U (en) | A kind of Central air-conditioning unit chilled water control circuit | |
| CN209016794U (en) | The conversion driving circuit and automatic change-over of automatic change-over | |
| CN204940427U (en) | Power station life fire fighting supply intelligence control system | |
| CN208268102U (en) | A kind of Double Speed Fan control cabinet | |
| CN208124562U (en) | A kind of autonomous suspend mode control circuit of air-conditioner outdoor unit | |
| CN216412900U (en) | Three-position switch operating mechanism | |
| CN213236254U (en) | Electric control system for lubricating oil electric ball valve of hydraulic generator | |
| CN104279697A (en) | Refrigerant water control circuit for central air-conditioning unit | |
| CN213656986U (en) | Hydraulic module structure capable of timing control | |
| CN206377323U (en) | The anti-lost electric control circuit of air-conditioning system four-way valve | |
| CN114023576B (en) | Three-position switch operating mechanism | |
| CN215494582U (en) | Electrical control system of hydraulic station | |
| CN210377126U (en) | Electric equipment control device for restaurant | |
| CN220601739U (en) | Wireless control system of cabinet air conditioner unit | |
| CN213486232U (en) | Intelligent control box for irrigation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |