CN220231958U - Endurance test device for electromagnetic type gas emergency cut-off valve - Google Patents

Abstract

The utility model provides an electromagnetic type gas emergency cut-off valve endurance test device, includes computer, PLC controller, servo electronic jar, DC power supply ware, AC220V power and trip valve mounting fixture, upper limit position sensor, origin position sensor, lower limit position sensor, valve rod lifting fixture, flexible cylinder, electronic jar displacement guide bar, power output box and servo electronic jar position regulator, servo electronic jar is fixed on the backplate frame and both sides are connected with electronic jar displacement guide bar through horizontal and vertical position regulator, upper limit position sensor, origin position sensor, lower limit position sensor set gradually from the top down on servo electronic jar, flexible cylinder and valve rod lifting fixture link to each other with servo electronic jar bottom, power output box is connected with DC power supply ware and AC220V power through the wiring, computer and PLC controller communication. The device has high durability performance test efficiency and high integration degree of a durability test system.

Description

Endurance test device for electromagnetic type gas emergency cut-off valve

Technical Field

The utility model belongs to the technical field of fuel gas detection, and particularly relates to an electromagnetic fuel gas emergency cut-off valve endurance test device.

Background

At present, the safety effect of an electromagnetic gas emergency cut-off valve in a gas transmission and distribution pipe network is increasingly remarkable, and when gas leakage occurs, the cut-off valve can effectively control a large amount of leakage of combustible gas in an emergency cut-off mode, so that accidents are reduced. The durability test of the shut-off valve is a key index for evaluating the performance of the shut-off valve in the processes of research, production, inspection and the like. At present, the electromagnetic cut-off valve is matched with the combustible gas detection alarm device, and the cut-off control mode is usually in a normally open type (power-on and off type) type and a normally closed type (power-off and off type). The opening mode is manual, the valve rod cut-off valve is pulled up to be opened, when corresponding electric signals are received, electromagnetic force is changed, the valve rod is pushed to fall under the action of mechanical force of the spring, the cut-off valve is closed, and the air path cut-off effect is achieved.

Because the structure, the function and the opening and closing control process are different from those of the proportional electromagnetic valve applied by the existing industrial fluid, and the control power supply and the cutting control mode of the electromagnetic gas emergency cutting valve of different types are different, the existing cutting valve test system cannot meet the endurance test of the cutting valve of different types, and the power signal output, the opening and closing control device and the software control program are lack of integration and integration, the endurance test process is not continuous, and the test efficiency is low.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide an electromagnetic type gas emergency cut-off valve endurance test device which solves the problems that the existing electromagnetic type gas emergency cut-off valves with different control power supplies and cut-off control modes are low in endurance performance test efficiency in research and development design, pattern inspection and other inspection, and the integration degree of an endurance test system is low.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an electromagnetic type gas emergency shut-off valve endurance test device, includes computer, PLC controller, servo electric cylinder, DC power supply ware, AC220V power and trip valve mounting fixture, its characterized in that still includes upper limit position sensor, origin position sensor, lower limit position sensor, valve rod lifting fixture, telescopic cylinder, electric cylinder displacement guide bar, power output box and servo electric cylinder position regulator, servo electric cylinder is fixed on the back plate frame and both sides are connected with electric cylinder displacement guide bar through horizontal and vertical position regulator, upper limit position sensor, origin position sensor, lower limit position sensor set gradually from the top down on servo electric cylinder, telescopic cylinder and valve rod lifting fixture link to each other with servo electric cylinder bottom, power output box adopts inside control bus to be connected with analog quantity module and communication module, analog quantity module through with telescopic cylinder, relay, servo electric cylinder position regulator, contain the upper limit position sensor of upper limit position sensor, DC power supply of DC power supply module, DC power supply controller high-level output standard quantity sensor, DC power supply controller output DC voltage control module, DC power supply 220 is connected with the PLC controller.

Preferably, the cut-off valve fixing clamp comprises a supporting plate, a cut-off valve connecting device and a left/right clamping clamp, wherein the cut-off valve connecting device is placed on the supporting plate to be fixed at two ends of the cut-off valve and clamped by the left/right clamping clamp.

Preferably, the PLC controller communicates with the computer through a programming port by using RJ 45.

Compared with the prior art, the utility model has the advantages that:

1. according to the utility model, the displacement stroke is accurately controlled by adopting the servo electric cylinder to match with the position sensor, so that the valve rod of the cut-off valve is pulled up, the control of the vertical displacement of the servo electric cylinder is realized, the accurate positioning of a valve rod lifting clamp is satisfied, and the test efficiency is improved;

2. the computer and the PLC are connected with the direct-current power supply and the AC220V power supply, and can output the control power supply voltage required by the cut-off valve through parameter setting;

3. according to the utility model, the computer and the PLC are respectively connected with the servo electric cylinder, the direct current power supply and the AC220V power supply and are combined with the cut-off type of the cut-off valve, so that the pulling of the valve rod and the on-off of corresponding power supply signals can be controlled, the mechanical opening, the electric signal on-off and the valve closing actions of the cut-off valve are consistent, and the durability test efficiency of the cut-off valve is improved;

4. the utility model combines the principle and the structure of an electromagnetic gas emergency cut-off valve, integrates voltage output, valve rod lifting and on-off logic control in the cut-off valve endurance test, and realizes integration and integration of the cut-off valve endurance test device.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawing in the description below is only one embodiment of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a block diagram of the structure of the electrical control section of the present utility model.

The device comprises a 1-servo electric cylinder, a 2-upper limit position sensor, a 3-origin position sensor, a 4-lower limit position sensor, a 5-electric cylinder displacement guide rod (bearing), a 6-telescopic cylinder, a 7-valve rod lifting clamp, an 8-servo electric cylinder position regulator, a 9-power output box, a 10-cut-off valve connecting device, an 11-supporting plate, a 12-left/right clamping clamp, a 13-computer display, a 14-PLC controller, a 15-direct current power supply, a 16-AC220V power supply, a 17-computer and an 18-relay.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully by reference to the accompanying drawings, in which it is shown, however, only some, but not all embodiments of the utility model. 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.

As shown in fig. 1 and 2, the present utility model provides an electromagnetic gas emergency shut-off valve endurance test apparatus, comprising a servo electric cylinder 1, an upper limit position sensor 2, an origin position sensor 3, a lower limit position sensor 4, an electric cylinder displacement guide rod (bearing) 5, a telescopic cylinder 6, a valve rod lifting jig 7, a servo electric cylinder position regulator 8, a power output box 9, a shut-off valve fixing jig, a computer display 13, a PLC controller 14, a direct current power supply 15, an AC220V power supply 16, a computer 17 and a relay 18. The shut-off valve fixing clamp comprises a shut-off valve connecting device 10, a supporting plate 11 and a left/right clamping clamp 12, wherein the shut-off valve connecting device 10 is placed on the supporting plate 11 and fixed at two ends of the shut-off valve, the left/right clamping clamp 12 clamps the adjustment position, and a shut-off valve control power line is connected to the power output box 9. The servo electric cylinder 1 is fixed on the back plate frame and is connected with a displacement guide rod (bearing) 5 capable of sliding in the vertical direction through a transverse position regulator and a longitudinal position regulator, the transverse movement and the longitudinal movement of the servo electric cylinder are controlled through the servo electric cylinder position regulator, the upper limit position sensor 2, the origin position sensor 3 and the lower limit position sensor 4 are sequentially arranged on the servo electric cylinder from top to bottom, and the telescopic cylinder 6 and the valve rod lifting clamp 7 are connected with the bottom end of the servo electric cylinder.

The PLC controller 14 is communicated with the computer 17 through a programming port by adopting RJ45, the PLC controller is connected with an analog module and a communication module through an internal control bus, the analog module is connected with an upper limit position sensor, an origin position sensor and a lower limit position sensor which contain standard analog signal output through wirings, the position sensor outputs standard analog signals to the PLC controller, the PLC controller precisely controls the displacement distance of the PLC controller by sending pulses to a servo electric cylinder driver, the analog module is connected with a direct current power supply, the output voltage of the direct current power supply is controlled through analog output with high precision, and the switching value signals output by the PLC controller realize the on-off of the direct current power supply and an AC220V power supply through a control relay.

In the test device in this embodiment, relevant parameters (including valve cut-off type, control voltage, valve opening and closing time interval, valve rod lifting height and total times of opening and closing of endurance test) are set in a computer control program, a cut-off valve connecting device 10 is fixed at two ends of a valve, placed on a supporting plate 11, adjusted in position and clamped by a left/right clamping clamp 12, and a cut-off valve control power line is connected to a power output box 9. After the device starts, the servo electric cylinder 1 drives the valve rod lifting clamp 7 to descend from the original point to the set position, the telescopic cylinder 6 pops up, the valve rod lifting clamp 7 clamps the valve rod, the servo electric cylinder 1 pulls the valve rod to move upwards for a set distance, the cut-off valve is opened, the servo electric cylinder 1 returns to the set position, the output of a control power supply signal is cut off, the valve rod falls back, the cut-off valve is closed, and one-time opening and closing actions are completed. Repeating the opening and closing actions after the set opening and closing time interval, and completing the durability test of the cut-off valve after the set opening and closing action times are reached. The direct current power supply and the AC220V power supply can provide direct current DC 0-36V and AC220V power supply voltage, and cut-off power supply voltages meeting the requirements of different cut-off valves; the on-off control of the power supply signal is realized through the PLC and the relay, the switching-off control logic of the 'normally open' and 'normally closed' type cut-off valves can be met, the control of the power supply time length can be realized in one switching-on and switching-off process, the power consumption is reduced, and the damage of the overlong power supply time to the control coil of the cut-off valve is reduced.

In this embodiment, the control program written by the PLC controller implements the opening and closing control logic for different types of shut-off valves: when the valve rod is selected to be in a normally open type (power-on closing type), the servo electric cylinder pulls up the valve rod, the valve rod lifting clamp returns to an initial position, a power supply signal with corresponding voltage is provided (generally t <1 s), the cut-off valve is cut off, and the power supply is closed; when the valve rod is selected to be in a normally closed state (power-off closing type), a power supply signal with corresponding voltage is provided, the servo electric cylinder pulls up the valve rod, the valve rod lifting clamp returns to an initial position, the power supply is closed, and the cut-off valve is cut off.

In this embodiment, the technical index of the test device is determined by referring to and combining the requirements of the durability test method in the electromagnetic gas emergency shut-off valve and the configuration condition of the test device in the standard CJ/T394-2018.

Finally, the utility model adopts the mature products and the mature technical means in the prior art.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present utility model.

Claims (3)

1. The utility model provides an electromagnetic type gas emergency shut-off valve endurance test device, includes computer, PLC controller, servo electric cylinder, DC power supply ware, AC220V power and trip valve mounting fixture, its characterized in that still includes upper limit position sensor, origin position sensor, lower limit position sensor, valve rod lifting fixture, telescopic cylinder, electric cylinder displacement guide bar, power output box and servo electric cylinder position regulator, servo electric cylinder is fixed on the back plate frame and both sides are connected with electric cylinder displacement guide bar through horizontal and vertical position regulator, upper limit position sensor, origin position sensor, lower limit position sensor set gradually from the top down on servo electric cylinder, telescopic cylinder and valve rod lifting fixture link to each other with servo electric cylinder bottom, power output box adopts inside control bus to be connected with analog quantity module and communication module, analog quantity module through with telescopic cylinder, relay, servo electric cylinder position regulator, contain the upper limit position sensor of upper limit position sensor, DC power supply of DC power supply module, DC power supply controller high-level output standard quantity sensor, DC power supply controller output DC voltage control module, DC power supply 220 is connected with the PLC controller.

2. The endurance test apparatus for an electromagnetic gas emergency shut-off valve according to claim 1, wherein: the stop valve fixing clamp comprises a supporting plate, a stop valve connecting device and a left/right clamping clamp, wherein the stop valve connecting device is placed on the supporting plate, fixed at two ends of the stop valve and clamped by the left/right clamping clamp.

3. The endurance test apparatus for an electromagnetic gas emergency shut-off valve according to claim 1, wherein: the PLC controller is communicated with a computer through a programming port by adopting RJ 45.