CN-116677810-B - Multifunctional electric valve opening and closing device and method

CN116677810BCN 116677810 BCN116677810 BCN 116677810BCN-116677810-B

Abstract

The application provides a multifunctional electric valve opening and closing device and method, wherein the device comprises a mode conversion module, an inversion module and a voltage stabilizing module, wherein the inversion module and the voltage stabilizing module are connected with the mode conversion module, the mode conversion module is used for converting the working mode of an electric valve to be controlled, the voltage stabilizing module is used for controlling the opening and closing of the electric valve to be controlled in a direct current 24V working mode, the inversion module is used for controlling the opening and closing of the electric valve to be controlled in an alternating current 220V working mode, and the voltage stabilizing module and the inversion module both comprise an electric valve selection unit, an electrohydraulic switch control unit and an electromagnetic switch control unit, wherein the electrohydraulic switch control unit and the electromagnetic switch control unit are connected with the electric valve selection unit. The multifunctional electric valve opening and closing device can be used for quick emergency opening and closing of the electro-hydraulic valve and the electromagnetic valve under 220V and 24V voltages, and is safe, reliable and convenient to carry.

Inventors

ZHANG YANFENG
GENG SHAOHUA
Bao Yuanhui
HU FENG
YUAN JINGLEI

Assignees

江南造船(集团)有限责任公司

Dates

Publication Date: 20260508
Application Date: 20230526

Claims (8)

1. The multifunctional electric valve opening and closing device is characterized by comprising a mode conversion module, an inversion module and a voltage stabilizing module, wherein the inversion module and the voltage stabilizing module are connected with the mode conversion module; The mode conversion module is used for converting the working mode of the electric valve to be controlled; The voltage stabilizing module is used for controlling the opening and closing of the electric valve to be controlled in a direct current 24V working mode; the inversion module is used for controlling the opening and closing of the electric valve to be controlled in an alternating current 220V working mode; the voltage stabilizing module and the inversion module comprise an electric valve selection unit, an electrohydraulic switch control unit and an electromagnetic switch control unit which are respectively connected with the electric valve selection unit; The electrohydraulic switch control unit comprises an electrohydraulic control switch, and an electrohydraulic valve opening control assembly and a electrohydraulic valve closing control assembly which are connected with the electrohydraulic control switch, wherein the electrohydraulic control switch is used for controlling the opening and closing of an electric valve to be controlled when the electric valve to be controlled is in an electrohydraulic valve working state, the electrohydraulic valve opening control assembly comprises a valve opening control branch and a valve opening limit branch which are connected in parallel, the valve opening control branch comprises a first valve opening coil and a normally closed contact switch of a first relay which are connected in series, the valve opening limit branch comprises a coil of the first relay and a valve opening limit switch which are connected in series, the Guan Dianye valve control assembly comprises a valve closing control branch and a valve closing limit branch which are connected in parallel, the valve closing control branch comprises a valve closing coil and a normally closed contact switch of a second relay which are connected in series, and the valve closing limit branch comprises a valve closing limit switch and a coil of the second relay which are connected in series; The electromagnetic switch control unit comprises an electromagnetic control switch and an open electromagnetic valve control assembly connected with the electromagnetic control switch, wherein the electromagnetic switch control unit is used for controlling the opening and closing of the electric valve to be controlled when the electric valve to be controlled is in an electromagnetic valve working state; The multifunctional electric valve opening and closing device can simultaneously control the quick emergency opening and closing of the electro-hydraulic valve and the electromagnetic valve under 220V and 24V voltages.
2. The multifunctional electric valve opening and closing device according to claim 1, further comprising a charging module, a charging control switch, a storage battery, a power supply control switch and a voltage detection module which are connected in sequence, wherein the voltage detection module is connected with the mode conversion module; The charging module is used for charging the storage battery; the charging control switch is used for controlling connection and disconnection between the charging module and the storage battery; The power supply control switch is used for controlling connection and disconnection between the storage battery and the voltage detection module; The voltage detection module is used for detecting the output voltage of the storage battery and controlling the storage battery to stop supplying power to the voltage stabilizing module and the inversion module when the output voltage of the storage battery is lower than a preset low voltage threshold.
3. A multi-function electric valve opening and closing device as claimed in claim 2, wherein, The power supply control switch is a circuit breaker.
4. A multi-function, electrically operable valve opening and closing device as defined in claim 2, further comprising an indicator circuit coupled to said voltage detection module; The indicating circuit comprises a valve opening indicating branch and a valve closing indicating branch; The valve opening indicating branch circuit comprises a valve opening indicating lamp, a normally open contact switch of the first relay and a second normally open contact switch of the third relay, wherein the normally open contact switch of the first relay is connected with the valve opening indicating lamp in series, and the second normally open contact switch of the third relay is connected with two ends of the normally open contact switch of the first relay in parallel; The valve closing indicating branch circuit comprises a valve closing indicating lamp and a normally open contact switch of the second relay, and the normally open contact switch of the second relay is connected with the valve closing indicating lamp in series.
5. A multi-function electric valve opening and closing device as recited in claim 1, further comprising a housing, The mode conversion module, the inversion module and the voltage stabilizing module are all arranged in the box body; the top is equipped with the handle outside the box, the box surface is equipped with article word charging base and stuffing box, the box is inside still to be equipped with the terminal row.
6. A multi-function electric valve opening and closing device as set forth in claim 5 wherein, The novel heat dissipation box comprises a box body, and is characterized by further comprising a heat dissipation fan and a shutter air hole, wherein the heat dissipation fan is arranged in the box body, the shutter air hole is formed in the side wall of the box body, and heat dissipation gas of the heat dissipation fan is dispersed from the shutter air hole.
7. A method of opening and closing a multi-function electric valve element based on the multi-function electric valve element opening and closing device of any one of claims 1-6, comprising: The control mode conversion module selects a working mode matched with the electric valve to be controlled, so that the electric valve to be controlled is in a direct current 24V working mode or in an alternating current 220V working mode: when the control electric valve selecting unit selects the working state of the electro-hydraulic valve, the electro-hydraulic control switch is used for controlling the opening and closing of the electro-hydraulic valve to be controlled; When the electromagnetic valve selecting unit is controlled to select the working state of the electromagnetic valve, the electromagnetic control switch is used for controlling the opening and closing of the electric valve to be controlled.
8. A method of opening and closing a multi-function, electrically operable valve member as in claim 7, further comprising: Closing a charging control switch to enable a charging module to charge a storage battery, and opening the charging control switch after the storage battery is charged; Closing a power supply control switch to enable the storage battery to supply power for the voltage stabilizing module or the inversion module through the voltage detection module and the mode conversion module; The voltage detection module detects the output voltage of the storage battery, and when detecting that the output voltage of the storage battery is lower than a preset low voltage threshold value, the voltage detection module controls the storage battery to stop supplying power to the voltage stabilizing module and the inversion module.

Description

Multifunctional electric valve opening and closing device and method Technical Field The application belongs to the technical field of pipeline transportation of ships, municipal engineering and the like, and particularly relates to a multifunctional electric valve opening and closing device and method. Background In the field of ships, municipal engineering, pipeline piping is an indispensable equipment and facility, and in pipeline systems for transporting steam, natural gas, compressed air, fresh water, fuel oil, lubricating oil, hydraulic oil and the like, pipeline valves are indispensable. In recent years, because pipeline technical facilities are advanced, control and monitoring systems are perfect, and most of executing valves adopt electric valves. However, in the ship pipeline system, based on the complexity of the shipbuilding process, there is a high requirement on the accuracy and safety of the control system. The electro-hydraulic valve generally comprises a valve core, a coil, a hydraulic control unit and other components, wherein the coil generates a magnetic field to enable the valve core to displace when an electric signal is given, so that the purpose of controlling the on-off state is achieved, and the electromagnetic valve controls the coil current to generate the magnetic field to enable the valve core to displace, so that the on-off state of the valve is controlled. Based on the difference of the working principle and the control mode, the control precision of the electro-hydraulic valve and the electromagnetic valve is higher than that of a common electric valve, and the safety of the electro-hydraulic valve and the electromagnetic valve in the process of conveying media such as gas is higher than that of the common electric valve. The existing remote control device for the electric valve is deployed and acts after the system is debugged and normally operated, which brings inconvenience to valve control in certain scenes. The system comprises a first circuit control device which can support the opening and closing of two valves, namely an electrohydraulic valve and an electromagnetic valve under two voltages, a second circuit control device which can not control the opening and closing of the valve by using a remote control device when a pipeline system is not debugged in a test stage, and a third circuit control device which can cause a plurality of faults when the pipeline system is used for a long time after production, so that the valve needs to be frequently opened and closed in a temporary emergency mode, and if the remote control device is used, frequent communication between people is not needed, the communication cost and the time cost are increased, and the communication difficulty is brought to the communication due to the lack of communication signals in a debugging site. Therefore, an electric valve opening and closing device capable of being directly used on site needs to be designed, and the electric valve opening and closing device is generally divided into a sectional tightness stage and a smooth test stage before a ship pipeline system is normally and safely used. When the ship pipeline system does not reach the utility test standard, temporary tightness and smoothness tests are required to be carried out on each section of pipeline, and therefore various electric valves are required to be frequently opened and closed temporarily. The existing electric valve of the pipeline is usually an electro-hydraulic valve or an electromagnetic valve, the supported voltage is usually 220V alternating current or 24V direct current, but the existing electric valve opening and closing device is single in control, narrow in application range and not applicable to various application scenes. Disclosure of Invention The application aims to provide a multifunctional electric valve opening and closing device which is used for solving the problem that the electric valve opening and closing device is single in control and can not simultaneously support temporary opening and closing of an electro-hydraulic valve and an electromagnetic valve under 220V and 24V voltages. In order to solve the technical problems, the application provides a multifunctional electric valve opening and closing device, which comprises a mode conversion module, an inversion module and a voltage stabilizing module, wherein the inversion module and the voltage stabilizing module are connected with the mode conversion module; The mode conversion module is used for converting the working mode of the electric valve to be controlled; The voltage stabilizing module is used for controlling the opening and closing of the electric valve to be controlled in a direct current 24V working mode; the inversion module is used for controlling the opening and closing of the electric valve to be controlled in an alternating current 220V working mode; The voltage stabilizing module and the inversion module comprise an electric valve se