CN112068049A - Magnetic force measuring method and pressure measuring equipment for electromagnetic valve head of combined valve - Google Patents
Magnetic force measuring method and pressure measuring equipment for electromagnetic valve head of combined valve Download PDFInfo
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- CN112068049A CN112068049A CN202010889658.8A CN202010889658A CN112068049A CN 112068049 A CN112068049 A CN 112068049A CN 202010889658 A CN202010889658 A CN 202010889658A CN 112068049 A CN112068049 A CN 112068049A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
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Abstract
The invention relates to the technical field of electromagnetic valve performance measurement, and provides a combined valve electromagnetic valve head magnetic force measurement method and pressure measurement equipment, wherein the combined valve electromagnetic valve head magnetic force measurement method comprises the following steps: s1, installing and fixing the combination valve; s2, mounting a pressure measuring device below a push rod of one solenoid valve head of the combination valve; s3, enabling the push rod to be at an initial position, and recording a pressure value measured by the pressure measuring equipment at the moment; s4, electrifying the electromagnetic valve head; and S5, recording the pressure value measured by the pressure measuring equipment, and calculating to obtain the magnetic force value of the electromagnetic valve head of the combination valve. The method can realize the measurement of the magnetic force of the electromagnetic head of the combined valve component, obtain the key working parameters of the combined valve component, solve the problem of design margin of the magnetic force of the electromagnetic head of the combined valve component, and ensure the reliable and safe operation of the electromagnetic head.
Description
Technical Field
The invention relates to the technical field of performance measurement of electromagnetic valves, in particular to a magnetic force measurement method and pressure measurement equipment for an electromagnetic valve head of a combination valve.
Background
In the existing built-in control rod driving technology, a driving mechanism is arranged in a high-temperature, high-pressure and irradiation environment in a reactor pressure vessel, three hydraulic cylinders for lifting, transferring and clamping are adopted to sequentially drive the transferring and the clamping of two sets of pin claw mechanisms to move, and the functions of lifting, descending and dropping the control rods are realized.
Based on the working principle of a driving mechanism and the characteristics of a built-in control rod driving wire of an advanced integrated small water reactor and the experience of tests and detection, a magnetic force measuring method of a combination valve electromagnetic valve head is needed to obtain key working parameters of a combination valve component.
Disclosure of Invention
The embodiment of the invention provides a method for measuring the magnetic force of a solenoid head of a combination valve and pressure measuring equipment, which are used for solving the problem of measuring the magnetic force of the solenoid head of the combination valve in the prior art.
The embodiment of the invention provides a method for measuring the magnetic force of a combined valve electromagnetic valve head, which comprises the following steps:
s1, installing and fixing the combination valve;
s2, mounting a pressure measuring device below a push rod of one solenoid valve head of the combination valve;
s3, enabling the push rod to be at an initial position, and recording a pressure value measured by the pressure measuring equipment at the moment;
s4, electrifying the electromagnetic valve head;
and S5, recording the pressure value measured by the pressure measuring equipment, and calculating to obtain the magnetic force value of the solenoid valve head of the combination valve.
According to the method for measuring the magnetic force of the solenoid head of the combination valve, the method for measuring the magnetic force of the solenoid head of the combination valve further comprises the following steps:
s6, repeating the steps S4-S5 for multiple times to respectively obtain the magnetic force values of the electromagnetic valve heads of the combination valve;
s7, the obtained magnetic force values are averaged.
According to the method for measuring the magnetic force of the solenoid head of the combination valve, the method for measuring the magnetic force of the solenoid head of the combination valve further comprises the following steps:
s8, replacing the pressure measuring equipment under the push rod of other electromagnetic valve heads mounted on the combination valve, and repeating the steps S3-S7.
According to the magnetic force measuring method for the electromagnetic valve head of the combination valve, when the combination valve is installed and fixed, the push rod axis of the electromagnetic valve head of the combination valve is vertical.
According to the method for measuring the magnetic force of the electromagnetic valve head of the combination valve, the step of placing the push rod at the initial position in the step S3 is realized by the following steps:
and rotating an adjusting bolt on the pressure measuring equipment to move the electromagnetic valve head to the jacking position.
According to the method for measuring the magnetic force of the electromagnetic valve head of the combination valve, in the step S4, the current input into the electromagnetic valve head is rated constant current.
According to the magnetic force measuring method for the electromagnetic valve head of the combined valve, when the combined valve is installed and fixed, the combined valve is disassembled, so that the combined valve is kept with the upper valve cover, the movable iron core, the static iron core, the push rod and the electromagnetic valve head.
According to the magnetic force measuring method for the electromagnetic head of the combination valve, the magnetic force value of the electromagnetic head of the combination valve is the difference value between the pressure value measured by the pressure measuring equipment when the electromagnetic head is electrified and the pressure value measured by the pressure measuring equipment when the electromagnetic head is not electrified.
The embodiment of the invention also provides pressure measuring equipment suitable for the combined valve electromagnetic valve head magnetic force measuring method, which comprises a weighing sensor and a height adjusting piece arranged at the measuring end of the weighing sensor, wherein the height adjusting piece is used for adjusting the measuring height of the weighing sensor.
According to the pressure measuring apparatus of one embodiment of the present invention, the height adjusting member is an adjusting bolt that is screwed to the load cell, and an axial direction of the adjusting bolt is along a measuring direction of the load cell.
According to the magnetic force measuring method and the pressure measuring device for the electromagnetic valve head of the combination valve, provided by the embodiment of the invention, the magnetic force value of the electromagnetic valve head of the combination valve can be obtained by detecting the push rod thrust on the electromagnetic valve head of the combination valve. The measuring method has the advantages of simple measuring equipment, easiness in implementation, visual measured data, small influence of external measuring factors and reliability in measured data. The measurement of the magnetic force of the electromagnetic head of the combined valve component is realized, the key working parameters of the combined valve component can be obtained, the problem of design margin of the magnetic force of the electromagnetic head of the combined valve component is solved, and the reliable and safe operation of the electromagnetic head is guaranteed. The method not only meets the engineering application of the control rod built-in water pressure driving technology on the advanced small water reactor, but also provides reference for the engineering design of the magnetic force detection of the electromagnetic valve head in other industrial fields.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a diagram illustrating a state of use of a pressure measurement device according to an embodiment of the present invention;
reference numerals:
1. an electromagnetic valve head; 2. a movable iron core; 3. a stationary iron core; 4. a push rod; 5. adjusting the bolt; 6. a weighing sensor; 7. and (4) an upper valve cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The method for measuring the magnetic force of the solenoid valve head of the combination valve in the embodiment of the invention is described below with reference to fig. 1, and the method for measuring the magnetic force of the solenoid valve head of the combination valve comprises the following steps:
and S1, installing and fixing the combined valve. A certain space is reserved at the lower part of the combination valve in the installation process, so that the measurement equipment is convenient to install. The experiment frame can be used for supporting and clamping and fixing the combined valve through the clamp, so that the combined valve cannot move up and down integrally.
When the fixed combination valve is installed, the combination valve is disassembled, and only the upper valve cover 7, the movable iron core 2, the static iron core 3, the push rod 4 and the electromagnetic valve head 1 of the combination valve are reserved. When the electromagnetic valve head 1 is electrified, the movable iron core 2 can drive the push rod 4 to move. Keeping only the above portions enables easy installation of the measuring apparatus, and the magnetic force value of the solenoid head 1 is easily obtained by the push rod 4.
And S2, mounting a pressure measuring device below the push rod 4 of one solenoid valve head 1 of the combination valve. The combination valve has three independent solenoid valve heads 1, when measuring, carry out the independent measurement to solenoid valve head 1 and can obtain more accurate measured data, also easily obtain the difference between the solenoid valve head 1 simultaneously. The measuring direction of the pressure measuring device is parallel to the direction of movement of the push rod 4.
S3, the push rod 4 is set at the initial position, and the pressure value measured by the pressure measuring device is recorded. The initial position of the push rod 4 is the position when the movable iron core 2 slides to the top end, i.e. the highest position of the push rod 4. At this time, the pressure value measured by the pressure measuring equipment is the gravity value of the movable iron core 2 and the push rod 4 minus the friction resistance value. When the upper end of the movable iron core 2 and the upper wall of the cavity are extruded, the upper wall of the cavity generates extrusion force on the movable iron core 2, and the pressure value measured by the pressure measuring equipment is the sum of the gravity value and the extrusion force of the movable iron core 2 and the push rod 4 minus the friction resistance value. The pressure value measured by the pressure measuring device in step S3 is an initial state value that can be used to calculate the magnetic force of the solenoid head 1.
S4, the solenoid valve head 1 is energized. At this time, the movable iron core 2 and the static iron core 3 are magnetized and attracted to each other, and act on the push rod 4 to generate a downward thrust on the push rod 4.
S5, recording the pressure value measured by the pressure measuring equipment, and calculating to obtain the magnetic force value of the electromagnetic valve head 1 of the combined valve, wherein the movable iron core 2 does not move, the static friction is still generated between the movable iron core 2 and the cavity and between the push rod 4 and the static iron core 3, and the friction resistance is not changed. In the case where the pressing force is present in step S3, the value of the pressing force is not changed. Therefore, the pressure value recorded in this step minus the pressure value recorded in S3 is the magnetic force value of the solenoid head 1, i.e., the pressure variation value measured by the pressure measuring apparatus of steps S3 to S4 is the magnetic force value of the solenoid head 1.
In one embodiment, the method for measuring the magnetic force of the solenoid valve head of the combination valve further comprises the following steps:
s6, repeating the steps S4-S5 for multiple times to respectively obtain the magnetic force values of the combination valve electromagnetic valve head 1;
s7, the obtained magnetic force values are averaged.
Measurement errors can be eliminated through multiple times of measurement, and the measurement result is more accurate.
In one embodiment, the method for measuring the magnetic force of the solenoid valve head of the combination valve further comprises the following steps:
s8, replacing the pressure measuring equipment under the push rod 4 of the other electromagnetic valve head 1 mounted on the combination valve, and repeating the steps S3-S7.
The step is a process of respectively measuring each electromagnetic valve head 1 of the combination valve, and can respectively obtain the magnetic force value of each electromagnetic valve head 1, and the magnetic force values of each electromagnetic valve head 1 can be compared with each other, so that the difference between each electromagnetic valve head 1 can be conveniently known.
In one embodiment, when the fixed combination valve is installed, the axis of the push rod 4 of the electromagnetic valve head 1 of the combination valve is vertical, and correspondingly, the pressure measuring device is also arranged to be vertical in the measuring direction. The measurement data can be made more accurate and installation and adjustment can also be facilitated.
In one embodiment, the step S3 of placing the push rod 4 in the initial position is achieved by rotating the adjusting bolt 5 on the pressure measuring device to move the solenoid head 1 to the top position. After pressure measurement equipment is placed below the push rod 4, the adjusting bolt 5 is rotated to enable the top end of the adjusting bolt 5 to be abutted against the lower end of the push rod 4, and the push rod 4 and the movable iron core 2 can be moved upwards by continuing rotating the adjusting bolt until the initial position is reached. The adjusting mode has the advantage of simple operation.
In one embodiment, the current input into the solenoid valve head 1 in step S4 is a rated constant current, and the generated suction force is a steady-state suction force, so that the influence of factors such as coil inductance on the measurement result can be effectively avoided, and the measurement result is more accurate.
The method for measuring the magnetic force of the electromagnetic valve head of the combined valve, provided by the embodiment of the invention, can effectively measure the magnetic force of the electromagnetic valve head 1 through simple measuring equipment, is simple to operate, is less interfered by environmental factors, and has a more accurate measuring result. The measured magnetic force data can be used for designing the combination valve and factory detection, and the use safety can be improved.
With reference to fig. 1, a pressure measurement device provided by an embodiment of the present invention is described below, and the pressure measurement device described below and the combined valve electromagnetic valve head magnetic force measurement method described above may be referred to correspondingly.
The pressure measuring device comprises a load cell 6 and a height adjustment member arranged on the load cell 6. The weighing sensor 6 may be an S-shaped weighing sensor or other commonly used measuring device as long as it can perform magnetic measurement. The height adjusting piece is arranged at the measuring end of the weighing sensor 6. The height adjusting member is located at the upper end of the load cell 6 when the measuring direction of the load cell 6 is vertical. The height adjusting member is used for adjusting the measurement height of the weighing sensor 6. When the pressure measuring equipment is applied to the combination valve electromagnetic valve head 1 for measurement, the height adjusting piece can enable the pressure of the push rod 4 on the electromagnetic valve head 1 to be transmitted to the measuring end of the weighing sensor 6, and the push rod 4 can also be pushed upwards through the height adjusting piece, so that the push rod 4 and the movable iron core 2 reach the top end.
In one embodiment, the height adjusting member is an adjusting bolt 5, a threaded hole is formed at the measuring end of the weighing sensor 6, the lower end of the adjusting bolt 5 is connected with the threaded hole of the weighing sensor 6 in a threaded manner, the axial direction of the adjusting bolt is parallel to the measuring direction of the weighing sensor 6, and the measuring distance of the weighing sensor 6 can be adjusted by rotating the adjusting bolt 5.
The pressure measuring equipment provided by the embodiment of the invention can be used for magnetic force measurement of the electromagnetic valve head 1 of the combination valve, has the advantages of simple structure, convenient material taking and easy operation, and has accurate measuring result and less influence by environmental factors.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for measuring the magnetic force of a combined valve electromagnetic valve head is characterized by comprising the following steps:
s1, installing and fixing the combination valve;
s2, mounting a pressure measuring device below a push rod of one solenoid valve head of the combination valve;
s3, enabling the push rod to be at an initial position, and recording a pressure value measured by the pressure measuring equipment at the moment;
s4, electrifying the electromagnetic valve head;
and S5, recording the pressure value measured by the pressure measuring equipment, and calculating to obtain the magnetic force value of the solenoid valve head of the combination valve.
2. The method for measuring the magnetic force of the solenoid head of the combination valve according to claim 1, further comprising:
s6, repeating the steps S4-S5 for multiple times to respectively obtain the magnetic force values of the electromagnetic valve heads of the combination valve;
s7, the obtained magnetic force values are averaged.
3. The method for measuring the magnetic force of the solenoid valve head of the combination valve according to claim 2, further comprising:
s8, replacing the pressure measuring equipment under the push rod of other electromagnetic valve heads mounted on the combination valve, and repeating the steps S3-S7.
4. The method for measuring the magnetic force of the electromagnetic valve head of the combination valve according to claim 1, wherein when the combination valve is installed and fixed, the push rod axis of the electromagnetic valve head of the combination valve is vertical.
5. The method for measuring the magnetic force of the electromagnetic valve head of the combination valve according to claim 1, wherein the step S3 is realized by the following steps:
and rotating an adjusting bolt on the pressure measuring equipment to move the electromagnetic valve head to the jacking position.
6. The method for measuring the magnetic force of the electromagnetic valve head of the combination valve according to claim 1, wherein the current input into the electromagnetic valve head in the step S4 is a rated constant current.
7. The method for measuring the magnetic force of the electromagnetic valve head of the combination valve according to claim 1, wherein when the combination valve is installed and fixed, the combination valve is disassembled, so that the combination valve remains an upper valve cover, a movable iron core, a static iron core, a push rod and the electromagnetic valve head.
8. The method for measuring the magnetic force of the solenoid head of the combination valve according to claim 1, wherein the magnetic force value of the solenoid head of the combination valve is the difference value between the pressure value measured by the pressure measuring device when the solenoid head is electrified and the pressure value measured by the pressure measuring device when the solenoid head is not electrified.
9. The pressure measuring equipment suitable for the combined valve electromagnetic valve head magnetic force measuring method is characterized by comprising a weighing sensor and a height adjusting piece arranged at the measuring end of the weighing sensor, wherein the height adjusting piece is used for adjusting the measuring height of the weighing sensor.
10. The pressure measuring apparatus according to claim 9, wherein the height adjusting member is an adjusting bolt screwed to the load cell, an axial direction of the adjusting bolt being along a measuring direction of the load cell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010889658.8A CN112068049B (en) | 2020-08-28 | 2020-08-28 | Magnetic force measuring method and pressure measuring equipment for electromagnetic valve head of combined valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010889658.8A CN112068049B (en) | 2020-08-28 | 2020-08-28 | Magnetic force measuring method and pressure measuring equipment for electromagnetic valve head of combined valve |
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| CN112068049A true CN112068049A (en) | 2020-12-11 |
| CN112068049B CN112068049B (en) | 2022-03-11 |
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2020
- 2020-08-28 CN CN202010889658.8A patent/CN112068049B/en active Active
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