CN115165339A - Multifunctional electric valve test box - Google Patents

Abstract

The invention belongs to a connecting method of dissimilar materials, and particularly relates to a multifunctional electric valve test box. The utility model provides a multi-functional electrically operated valve proof box, wherein, includes three functional areas, is A district respectively: a power supply loop; and a B region: a control loop; and a C region: and measuring a loop. The invention has the following remarkable effects: the application range is wide; the remote control function is provided, and the safety factor is high; the measurement parameters are more, and the use is convenient; the measurement precision is high; is convenient to carry and beautiful.

Description

Multifunctional electric valve test box

Technical Field

The invention belongs to a connecting method of dissimilar materials, and particularly relates to a multifunctional electric valve test box.

Background

In the electric debugging site operation, there is a large amount of electric valves to debug, and electric valve debugging mainly uses the relay control box to operate at present, and cooperation phase sequence table, the clip-on ammeter, the stopwatch, instruments such as universal meter carry out the parameter measurement, have following problem in the construction:

1. the valve debugging involves more test equipment, is inconvenient to carry, and the time measurement needs to adopt a handheld stopwatch to measure the action time, the measurement error is mainly the matching error of operation and measurement, and the matching error is uncontrollable;

2. part of valves are higher in position and narrow in space in the debugging process, the field environment is noisy, operators on the valve side and the control box side are matched for debugging in the debugging process, errors are prone to occur in the communication process, power transmission errors and misoperation are prone to occur, and the operation difficulty, safety risks and communication risks are increased;

3. the traditional valve box utilizes a thermal relay to carry out current protection, and has the defects that the protection range is small, 3-4 test boxes with different current ranges are required to be arranged in the whole project, and sometimes, a plurality of test boxes are required to be used in one room to carry out tests, so that great manpower and material resources are wasted.

Disclosure of Invention

The invention provides a multifunctional electric valve test box aiming at the defects of the prior art, wherein the thermal protection of the equipment can meet the debugging requirement of the valve in the prior construction place and can measure all parameters of the electric valve; the remote control valve has a remote control function, the valve can be operated at the valve side, communication links are reduced, and safety is greatly improved.

The invention is realized by the following steps: the utility model provides a multi-functional electrically operated valve proof box, wherein, includes three functional areas, is A district respectively: a power supply circuit; and a B region: a control loop; and a C region: the loop is measured.

The multifunctional electric valve test box is characterized in that the functional area A is a power supply loop of the whole valve control box and is a working power supply for the action of the electric valve, and the power supply enters from a U, V, W three-phase cable and is sent to the electric valve through a main switch and a control contactor node to drive the electric valve to open and close.

The multifunctional electric valve test box comprises a functional area B, a valve control box body, a valve torque switch, a limit switch and a control circuit, wherein the functional area B is a control circuit of the whole valve control box, controls the opening and closing of the valve and displays the opening and closing state of the valve, and electric valve torque switch and limit switch signals are connected into the circuit and can be automatically stopped when the valve is opened in place and closed in place.

The multifunctional electric valve test box is characterized in that the functional area C is a measuring loop of the whole valve control box, can measure the running current of the valve in real time and automatically measure the time of the full-on or full-off stroke of the valve, and can provide 24V direct current power to the outside.

The multifunctional electric valve test box comprises the following parts

Name of component	Component code	Function(s)	Remarks for note
				Phase sequence relay	XJ	Judging incoming line power phase sequence
Main circuit breaker	QS	Main circuit of dividing and combining
				Current transducer	MI1、MI2、MI3	Measuring main loop current
Contactor contact	KM1、KM2	Control valve switch

。

The multifunctional electric valve test box comprises the following parts

Name of component	Component code	Function(s)	Remarks to note
				Control power switch	QB	Switching control circuit
Contactor with a magnetic circuit having a magnetic core	KM1、KM2	Control valve switch
				Indicator light	R、G、Y	Valve opening and closing indication and power supply indication
Remote controller	KZ	Remote control function control apparatus

。

The multifunctional electric valve test box comprises the following parts

The invention has the following remarkable effects:

1. wide application range

The new test box is protected by the electronic digital display meter, so that the precision is high, the response speed is high, the application range is wide, and one test box can meet the requirements of measurement and debugging of parameters such as current, action time and the like of a valve in the existing place;

2. has remote control function and high safety factor

The new test box has a remote control function, only a tester needs to check on the valve side, and an operation instruction can be remotely operated through a remote controller, so that the number of operators is reduced, and the communication risk is reduced;

3. has many measuring parameters and convenient use

The test box can meet the requirements of action time and running current, can provide a 24V power supply, and performs an electric control valve test. The power cable and the control cable are connected through the aviation plug, operation is convenient, and connection is reliable. And the phase sequence measurement can be carried out on the valve phase sequence after the test is finished, and the termination is finished at one time according to the mark during the termination.

4. The measurement precision is high

An electronic timer is arranged in the new test box, the action time is directly measured through a control loop, the measurement precision is high, and the error is controllable.

5. Convenient to carry and beautiful

The new test box is provided with the transport box with the pulleys, so that the labor intensity can be greatly reduced by carrying on site;

the cost of the components of the test box is about 3500 yuan, the parameter measurement function required by electric valve debugging is integrated, the current protection range is large, 1 test box can meet the requirement of valve debugging on the whole site, 4-5 sets of test boxes with different current ranges are required to be prepared in the traditional method, and the manufacturing cost is saved.

The new test box can meet the test of all valves on site, so that all valves can be tested one by one in sequence in the test process, and the efficiency is reduced without frequently replacing the test boxes with different protection ranges.

Drawings

FIG. 1 is a control schematic of a valve;

FIG. 2 is an external view of a valve box

FIG. 3 is a schematic view of the operation panel of the valve box

In the figure: and a region A: a power supply loop; and a B region: a control loop; and a C region: measuring circuit

Detailed Description

A multifunctional electrically operated valve test chamber comprising:

"FIG. 1: the valve control schematic diagram is divided into 3 functional areas A, B, C, and each functional area is described in detail as follows:

1) Functional region A

The functional area A is a power supply loop of the whole valve control box and is a working power supply for the action of the electric valve, and the power supply enters from a U, V, W three-phase cable and is sent to the electric valve through a main switch and a control contactor node for driving the opening and closing of the electric valve. It mainly comprises the following parts:

name of component	Component code	Function(s)	Remarks for note
				Phase sequence relay	XJ	Judging incoming line power phase sequence
Main circuit breaker	QS	Splitting and combining main loop
				Current transducer	MI1、MI2、MI3	Measuring main loop current
Contactor contact	KM1、KM2	Control valve switch

2) Functional region B

The functional area B is a control loop of the whole valve control box, controls the opening and closing of the valve and displays the opening and closing state of the valve, and electric valve torque switch and limit switch signals are connected into the loop, so that the valve can be automatically stopped when the valve is opened in place and closed in place. It mainly comprises the following parts:

name of component	Component code	Function(s)	Remarks for note
				Control power switch	QB	Separation and combination control circuit
Contactor	KM1、KM2	Control valve switch
				Indicating lamp	R、G、Y	Valve opening and closing indication and power supply indication
Remote controller	KZ	Remote control function control apparatus

3) Functional region C

The functional area C is a measuring loop of the whole valve control box, can measure the running current of the valve in real time and automatically measure the time of the full-on or full-off stroke of the valve, and can provide a 24V direct-current power supply for the outside. It mainly comprises the following parts:

the working method of the instrument is as follows:

1. selecting a proper wiring mode according to a valve schematic diagram, and correctly connecting the aviation plug and the quick butt joint terminal;

2. connecting a grounding wire, switching on a power supply, checking that each component works normally, and setting appropriate parameters according to the rated current of the local valve;

3. local or remote switching is set according to actual conditions;

outputting a control signal, checking the action condition of the valve, and checking position feedback;

4. and (5) confirming that the valve is not abnormal in several times of round trip, and recording test data.

And (3) on-site use of valve box result display:

the multifunctional electric valve test box is applied to debugging of field electric valves of a No. Tian Wan/6 unit, at present, the valves of the unit are smoothly handed over to owners, and the running state is good. Practice proves that the device is safer, more reliable and more efficient to debug the valve.

Claims (7)

1. The utility model provides a multi-functional electrically operated valve proof box which characterized in that: comprises three functional areas, namely an A area: a power supply loop; and a B region: a control loop; and a C region: the loop is measured.

2. A multifunctional electrically operated valve test chamber as claimed in claim 1, wherein: the functional area A is a power supply loop of the whole valve control box and is a working power supply for the action of the electric valve, and the power supply enters from a U, V, W three-phase cable and is sent to the electric valve through a main switch and a control contactor node for driving the opening and closing of the electric valve.

3. A multifunctional electrically operated valve test chamber as claimed in claim 1, wherein: the functional area B is a control loop of the whole valve control box, controls the opening and closing of the valve and displays the opening and closing state of the valve, and electric valve torque switch and limit switch signals are connected into the loop, so that the valve can be automatically stopped when the valve is opened in place and closed in place.

4. A multifunctional electrically operated valve test chamber as claimed in claim 1, wherein: the functional area C is a measuring loop of the whole valve control box, can measure the running current of the valve in real time and automatically measure the time of the full-on or full-off stroke of the valve, and can provide a 24V direct-current power supply for the outside.

5. A multifunctional electrically operated valve test chamber as claimed in claim 2, wherein: the functional region A includes the following portions

Name of component Component code Function(s) Remarks for note Phase sequence relay XJ Judging incoming line power phase sequence Main circuit breaker QS Splitting and combining main loop Current transducer MI1、MI2、MI3 Measuring main loop current Contactor contact KM1、KM2 Control valve switch

。

6. A multifunctional electrically operated valve test chamber as claimed in claim 3, wherein: the functional region B includes the following portions

Name of component Component code Function(s) Remarks for note Control power switch QB Separation and combination control circuit Contactor KM1、KM2 Control valve switch Indicating lamp R、G、Y Valve opening and closing indication and power supply indication Remote controller KZ Remote control function control apparatus

。

7. A multifunctional electrically operated valve test chamber as claimed in claim 4, wherein: the functional region C includes the following portions

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