KR101678029B1 - Air operated valve actuator simulating apparatus - Google Patents

Air operated valve actuator simulating apparatus Download PDF

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Publication number
KR101678029B1
KR101678029B1 KR1020150121553A KR20150121553A KR101678029B1 KR 101678029 B1 KR101678029 B1 KR 101678029B1 KR 1020150121553 A KR1020150121553 A KR 1020150121553A KR 20150121553 A KR20150121553 A KR 20150121553A KR 101678029 B1 KR101678029 B1 KR 101678029B1
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KR
South Korea
Prior art keywords
piston
driver
cylinder
ring
simulating
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KR1020150121553A
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Korean (ko)
Inventor
이상혁
김대환
이태현
류경하
김상교
김재형
김영중
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한국기계연구원
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Priority to KR1020150121553A priority Critical patent/KR101678029B1/en
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Publication of KR101678029B1 publication Critical patent/KR101678029B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
  • Details Of Valves (AREA)

Abstract

An air operated valve actuator simulating apparatus for evaluating the performance of annular first and second O-rings of different sizes used in an air operated valve comprises an actuator piston simulating unit, an actuator cylinder simulating unit, a temperature control simulating unit, and a measuring unit. The actuator piston simulating unit has one end reciprocating in a first direction or a second direction opposite to the first direction. The actuator cylinder simulating unit covers one end of the actuator piston simulating unit. The temperature control simulating unit covers the actuator cylinder simulating unit and applies heat to the inside of the actuator cylinder simulating unit. The measuring unit detects a change in resistance to the movement of the actuator piston simulating unit.

Description

{AIR OPERATED VALVE ACTUATOR SIMULATING APPARATUS}

The present invention relates to an air driven valve driver simulator, and more particularly, to an air driven valve driver simulator that evaluates the performance of an air driven valve actuator with changes in ambient temperature.

The plant uses a number of air operated valves to control the valves in areas where people can not be deployed. In particular, nuclear power plants control valves with air-driven valves in emergency situations, It is essential to prevent development.

Since Fukushima Nuclear Power Plant, there has been increased interest in whether air-operated valves operate in extreme environments, and air-operated valve performance evaluation methods have been devised to determine whether air-operated valves operate at high temperatures.

Korean Patent Registration No. 10-1527315 discloses an invention for testing the spring performance of an air actuator through a stem sensor and a displacement sensor, and Korean Patent Registration No. 10-1136211 discloses a force Sectional area of the air actuator is measured to measure the effective cross-sectional area of the air actuator. However, the present invention does not disclose an invention for evaluating the performance of the air drive valve that can occur in a high-temperature extreme environment.

Actuators for air-operated valves are essential for air-operated valves to operate, and most air-operated valve actuators contain key components of non-metallic materials that are susceptible to high temperatures. There is room for a problem. Accordingly, there is an increasing need for a performance evaluation device for an air-operated valve that can provide a high temperature environment capable of evaluating the performance of an air-driven valve and can detect a change in performance.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an air-driven valve driver simulator for diagnosing performance of high-temperature O-rings used in an air-driven valve.

In the air drive valve driver simulation apparatus for evaluating the performance of the first O-rings and the second O-rings of different sizes, which are used in the air drive valve according to an embodiment of the present invention, The drive valve driver simulation apparatus includes a driver piston simulation section, a driver cylinder simulation section, a temperature control simulation section, and a measurement section, wherein the driver piston simulation section is configured such that one end is reciprocated in a first direction or a second direction opposite to the first direction Wherein the driver cylinder simulation unit covers one end of the driver piston simulation unit, the temperature control simulation unit covers the driver cylinder simulation unit and applies heat to the interior of the driver cylinder simulation unit, and the measurement unit detects a change in resistance to movement of the driver piston simulation unit do.

In one embodiment, the measuring unit measures a change in resistance to movement of the driver piston simulating unit, which is varied according to a state change due to hot hot air directly applied to the first O-ring and the second O-ring, The frictional force generated in the second O-ring can be evaluated.

In one embodiment, the first O-ring may be coupled to one end of the driver piston simulator and be disposed between the one end side of the driver piston simulator and the inner side of the driver cylinder simulator.

In one embodiment, the second O-ring is inserted into the upper center of the driver cylinder simulation section extending through the driver cylinder simulation section to a smaller size than the first O-ring and passing through the driver piston simulation section, Can be disposed between the inner side surfaces of the portions.

In one embodiment, the temperature control simulation unit may include a first chamber and a second chamber that are coupled to each other to seal one end of the driver cylinder simulation unit and the driver cylinder simulation unit, and inject high temperature hot air into the interior.

In one embodiment, the driver piston simulating part may include a piston which is formed by one side surface thereof contacting the inner surface of the driver cylinder simulating part and reciprocates in the first direction or the second direction.

In one embodiment, the first O-ring has an inner surface disposed in a recess recessed along a side surface of the piston so as to surround the piston and an outer surface protrude from the groove to closely contact the inner surface of the driver cylinder simulation portion.

In one embodiment, the driver piston simulator further comprises a valve stem and a drive device, wherein the valve stem has one end coupled to the upper center of the piston and the other end extending in a second direction, And the drive device may be formed at the other end of the valve stem to pull or push the valve stem.

In one embodiment, the second O-ring may be formed between the penetrating portion and the valve stem.

The air driven valve actuator simulator of the present invention is capable of evaluating the performance of the first O-ring and the second O-ring, which are coupled to the air drive valve, at room temperature or high temperature, And the performance of the first O-ring and the second O-ring can be evaluated.

Also, the cylinder flange and the cylinder body can be detachably attached to each other, so that the first O-ring can be easily attached to and detached from the piston, and the measuring unit can be mounted on the first O-ring and the second O-ring using a strain gage or a load cell. The friction generated in the O-ring can be measured.

When the piston is driven and reciprocally moved in the first direction or the second direction, the entire upper portion of the cylinder flange is integrally formed, and the piston flange is integrally formed with the piston flange, The durability against the pressure of the cylinder body is increased, and the lower part of the cylinder body is also advantageous against the pressure of the piston.

Between the cylinder flange and the cylinder body, an air passage hole is formed so that hot air generated by the temperature control simulator can be directly applied to the first O-ring and the second O-ring to change the temperature quickly.

The temperature control simulator can be separated into the first chamber and the second chamber so that the mounting of the first O-ring and the second O-ring is easy and uniform heat can be externally applied to the outside of the driver cylinder simulator through the hot air, It is possible to accurately evaluate the performance of the first and second O-rings.

1 is a schematic diagram showing a valve actuator according to the prior art.
2 is an exploded perspective view showing an air driven valve driver simulation apparatus according to an embodiment of the present invention.
FIG. 3 is a perspective view showing the combined structure of the air driven valve driver simulation apparatus of FIG. 2; FIG.
4 is a cross-sectional view showing a plane cut along the line A-A 'in Fig.
5 is an enlarged view showing the portion 'B' of FIG. 4 on an enlarged scale.

Hereinafter, an air drive valve driver simulation apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term "comprises" or "comprising ", etc. is intended to specify that there is a stated feature, figure, step, operation, component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram showing a valve actuator according to the prior art.

1, the valve actuator 10 includes a cylinder 11, a piston 12, a piston o-ring 13, a drive stem 14, a valve O-ring 15, a valve stem 16 , A valve body (17), an air inlet (18), and a connecting portion (19).

The valve driver 10 is a valve that applies a pneumatic pressure to a piston or a diaphragm to generate a linear or circular drive for driving the valve, and is used to control the valve drive in an environment where human activity is difficult.

For example, air-driven valves installed to control nuclear power plants of nuclear power plants are representative, and the valve driver 10 installed in the nuclear power plants to minimize the spread of radioactive contamination due to problems such as Fukushima nuclear accident, To be controlled remotely.

The valve actuator 10 is disposed in the cylindrical cylinder 11 in close contact with the piston 12 and the piston o-ring 13 is formed between the cylinder 11 and the piston 12 The friction caused by the upward and downward movement of the piston 12 is minimized and noise is suppressed.

The driving stem 14 is coupled to the lower center of the piston 12 and moves up and down according to the movement of the piston 12. When air is injected into the cylinder 11 through the air inlet 18 The piston 12 is lifted and the drive stem 14, the valve stem 16 and the connecting portion 19 are moved upward to open the flow of the fluid inside the valve body 17, When the injection port 18 discharges the air inside the cylinder 11, the piston 12 moves downward so that the valve stem 16 moves upward and opens the valve body 17.

When the driving stem 14 moves up and down, the driving stem 14 moves while contacting the valve O-ring 15 formed in the cylinder 11, thereby reducing friction and noise, Wherein the piston o-ring (13) disposed between the piston (12) and the cylinder (11) smoothly drives the piston (12) and reduces noise, The pressure of the air pressure injected into the valve driver 10 is maintained through O-rings of various sizes and shapes including the valve O-ring 15 and the resistance against the driving of the piston 12 is reduced, Stability and accuracy are increased.

Therefore, in order to ensure the stability and accuracy of the valve driver 10, the heat resistance, wear resistance, and wear resistance of various O-rings including the piston O-ring 13 and the valve O-ring 15, , Durability and deformation are important to measure or evaluate.

2 is an exploded perspective view showing an air driven valve simulation apparatus according to an embodiment of the present invention. 3 is a perspective view showing the combined structure of the air driven valve simulation apparatus of FIG. 4 is a cross-sectional view showing a plane cut along the line A-A 'in Fig. 5 is an enlarged view showing the portion 'B' of FIG. 4 on an enlarged scale.

2 to 5, the air-driven valve driver simulator 100 includes a driver cylinder simulator 200, a first O-ring 310, a second O-ring 320, a temperature control simulator 400, And includes a simulation unit 500 and a measurement unit 600.

The actuator cylinder simulation unit 200 includes a cylinder flange 210, a cylinder body 220 and a support device 230. The temperature control simulation unit 400 includes a first chamber 410 and a second chamber Wherein the actuator piston simulator 500 includes a drive unit 510, a valve stem 520 and a piston 530, the cylinder flange 210 includes a penetration 211 , And the piston 530 includes a first groove 531.

The air drive valve driver simulation apparatus 100 is an apparatus for evaluating heat resistance and wear resistance of O-rings including the piston O-ring 13 and the valve O-ring 15 used in the valve driver 10 of FIG. 1, Here, the first O-ring 310 corresponds to the piston O-ring 13, and the valve O-ring 15 corresponds to the second O-ring 320.

The first and second O-rings 310 and 320 used in the valve driver 10 are reciprocated in a first direction or a second direction opposite to the first direction by driving the driver piston simulation unit 500, When the temperature control simulation unit 400 covers and heats the driver cylinder simulation unit 200, the measurement unit 600 can measure the state of the first and second O-rings 310 and 320 in a high- The performance of the first and second O-rings 310 and 320 is evaluated by measuring the driving performance of the driver piston simulator 500 according to the change.

Referring to FIG. 2, the actuator cylinder simulating part 200 has a cylindrical structure by a combination of the cylinder flange 210 and the cylinder body 220, and a space is formed therein. The piston 530 formed at one end of the driver piston simulating part 500 has a disk-like structure in an inner space of the driver cylinder simulating part 200, And reciprocates in the first direction or the second direction in the inner space with a predetermined distance from the inner space.

One end of the valve stem 520 is coupled to the center of the piston 530 and extends along the first direction while passing through the upper portion of the driver cylinder simulating part 200 so that the driving device 510 and the measuring part 600).

The upper portion of the cylinder flange 210 is formed in a circular plate shape to cover the upper portion of the piston 530 and the valve stem 520 and the valve stem 520 penetrates the upper portion of the cylinder flange 210 And a portion of the cylinder flange 210 extends toward the lower vertical end to cover a part of the side surface of the driver cylinder simulating part 200.

The lower portion of the cylinder body 220 is formed in the shape of a circular plate to cover a lower portion of the piston 530 and the valve stem 520 and a portion of the cylinder body 220 is connected to the cylinder flange 210 to cover the side surface of the driver cylinder simulating part 200 and to engage with the cylinder flange 210 to form the cylindrical driver simulating part 200 of a cylindrical shape.

An air passage hole is formed between the cylinder flange 210 and the cylinder body of the cylinder body 220 so that hot air generated by the temperature control simulation unit 400 flows through the predetermined cylinder, The second O-ring 320 is directly injected into the piston 530 and the second O-ring 320 so that the second O-ring 320 is inserted into the O-ring 13 of the valve driver 10 It can help to be exposed to similar environments.

The first O-ring 310 is coupled to the side surface of the piston 530 so that the first O-ring 310 is disposed between the piston 530 and the inner surface of the driver cylinder simulating part 200, 530 move while closing the space between the piston 530 and the inner surface of the driver cylinder simulating part 200 to minimize the frictional force and smooth movement of the piston 530.

The second O-ring 320 is disposed between the side surface of the valve stem 520 and the cylinder flange 210 at a position where the valve stem 520 passes through the cylinder flange 210, The frictional force between the valve stem 520 and the cylinder flange 210 is minimized and the movement of the valve stem 520 is smooth.

The temperature control simulation unit 400 covers the driver cylinder simulation unit 200 by the combination of the first chamber 410 and the second chamber 420 and the temperature control simulation unit 400 includes the first O- In order to evaluate the performance of the O-ring 320 in various environments, hot air is injected into the driver cylinder simulator 200 to apply high-temperature heat.

The first O-ring 310 and the second O-ring 320 formed in the driver cylinder simulating part 200 are deformed when the high-temperature heat applied by the temperature control simulator 400 increases to a specific temperature or more. Thereby changing the frictional force generated when the piston 530 moves.

For example, when the first O-ring 310 or the second O-ring 320 is deformed by high temperature, the driving force required for the piston 530 to move increases or decreases, The movement speed of the first O-ring 310 and the second O-ring 320 may be reduced or increased due to the deformation of the first O-ring 310 and the second O- The smooth movement of the piston 530 and the valve stem 520 becomes difficult and the driving performance of the valve stem 520 and the piston 530 is remarkably deteriorated.

Therefore, the first O-ring 310 and the second O-ring 320 used in the valve driver 10 are coupled to the air drive valve driver simulation apparatus 100, The performance of the two O-rings 320 in the high-temperature environment can be evaluated at the same time, and the first O-ring 310 or the second O-ring 320 can be individually coupled to the air-actuated valve driver simulator 100, The performance of each of the first O-ring 310 and the second O-ring 320 can be evaluated.

The piston 530 is formed with the first groove 531 along the side surface thereof so that the inner surface of the first O-ring 310 is engaged with the piston 530 in contact with the groove, The outer surface of the cylinder flange 210 contacts the side surfaces of the cylinder flange 210 and the cylinder body 220 and is formed between the piston 530 and the driver cylinder simulation portion 200, The upper space of the piston 530 and the lower space of the piston 530 in the interior of the cylinder flange 210 and the cylinder body 220 are not formed with holes for allowing air to pass therethrough, Can be blocked from each other by an O-ring 310.

4 and 5, the cylinder flange 210 is formed with the penetration portion 211 through which the valve stem 520 penetrates, and a groove is formed in the side surface of the penetration portion 211, And the second O-ring 320 is coupled to the penetration portion 211. The piston 530 and the valve stem 520 are detachable from each other and the second O-ring 320 is connected to the valve stem 520 in a state where the valve stem 520 and the piston 530 are detached. It is easy to engage with the through-hole 211 when the cylinder flange 210 is detached from the cylinder flange 210.

The piston 530 and the valve stem 520 are coupled to the piston 530 and the cylinder flange 210 while the first O-ring 310 and the second O-ring 320 are coupled to the piston 530 and the cylinder flange 210, Or the second direction, a driving environment similar to that of the valve driver 10 is reproduced and the wear resistance, durability and heat resistance of the first O-ring 310 and the second O-ring 320 can be evaluated.

Although not shown in the drawing, the thickness of the piston 530 can be varied, and the first groove 531 capable of engaging the first O-ring 310 according to the thickness of the piston 530 To couple the plurality of O-rings included in the particular type of air-operated valve to the piston 530.

Also, the thickness of the upper portion of the cylinder flange 210 may be adjusted to form the through-holes 211 in a first direction so as to evaluate the performance of the air-driven valve including the plurality of second O- Do.

The first chamber 410 and the second chamber 420 are coupled to each other to cover the driving cylinder simulation unit 200 and heat the high temperature so that the first O-ring 310 and the second O- The vibration generated when the piston 530 is driven is relaxed by the first chamber 410 and the second chamber 420 so that the difference between the valve driver 10 and the environment It is preferable that the first and second chambers 410 and 420 are spaced apart from each other so as not to contact the driver cylinder simulation unit 200 and the valve stem 520.

Therefore, the first and second O-rings 310 and 320 are coupled to the first groove 531 and the penetration portion 211, respectively, and are reciprocally moved between the valve stem 520 and the piston 530 It is possible to evaluate the objective performance of the first and second O-rings 310 and 320 by providing the same environment as that of the valve driver 10.

The cylinder flange 210 is formed on the upper portion of the cylinder flange 210 so that the portion covering the second O-ring 320 is separated and the second O-ring 320 can be easily mounted on the penetration portion 211 . When the upper portion of the cylinder flange 210 is detachable, the valve stem 520 is not detached from the piston 530 when the first O-ring 310 is mounted on the piston 530, The valve stem 520 and the piston 530 are coupled to each other through the penetration portion 211 so that the first o-ring 310 can be easily coupled to the piston 530 .

According to embodiments of the present invention as described above, the air drive valve driver simulation apparatus 100 may include a first O-ring 310 and a second O-ring 320, which are coupled to the air- It is possible to evaluate the performance of the first O-ring 310 and the second O-ring 320 by setting the same drive and environment as the air drive valve.

The cylinder flange 210 and the cylinder body 220 can be detachably attached to each other so that the first O-ring 310 can be easily attached to and detached from the piston 530, The frictional force generated in the first O-ring 310 and the second O-ring 320 can be measured using a strain gage or a load cell.

The cylinder flange 210 forms an upper portion and a side portion of the cylinder body 220. The cylinder body 220 is formed as a lower portion and a side portion of the cylinder flange 210. When the piston 530 is driven to move in the first direction, And the lower portion of the cylinder body 220 is also resistant to the pressure of the piston 530. The piston 530 may be formed of a synthetic resin.

The temperature control simulator 400 can be separated into the first chamber 410 and the second chamber 420 so that the first O-ring 310 and the second O-ring 320 can be easily mounted The first and second O-rings 310 and 320 can be uniformly heated to externally apply heat to the outside of the driver cylinder simulator 200 to provide an environment similar to the environment in which the air- Is possible.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

The air driven valve actuator simulator apparatus according to the present invention has industrial applicability that can be used in research centers, schools, and corporations.

100: air drive valve drive simulator 200: driver cylinder simulator
210: Cylinder flange 220: Cylinder body
230: support device 310: first o-ring
320: second O-ring 400: temperature control simulator
410: first chamber 420: second chamber
500: Actuator piston simulating part 510: Driving device
520: valve stem 530: piston
600:

Claims (11)

1. An air driven valve driver simulation apparatus for evaluating the performance of first and second O-rings of annular shapes of different sizes used in an air driven valve,
A driver piston simulating part which reciprocates once in a first direction or in a second direction opposite to the first direction;
A driver cylinder simulating part covering one end of the driver piston simulating part;
A temperature control simulator for covering the driver cylinder simulation part and applying heat to the interior of the driver cylinder simulation part; And
And a metering section for sensing a change in resistance to movement of the actuator piston simulating section. The apparatus according to claim 1,
The performance of the first O-ring and the second O-ring is measured by measuring a change in resistance to movement of the driver piston simulating part depending on a state change due to hot hot air directly applied to the first O-ring and the second O- Wherein the air-driven valve driver simulator includes: 2. The apparatus of claim 1, wherein the first O-
Wherein the actuator is coupled to one end of the driver piston simulating part and is disposed between one end side of the driver piston simulating part and the inner side of the driver cylinder simulating part. 4. The apparatus of claim 3, wherein the second O-
Wherein the driver piston simulation part is extended to the other end with a size smaller than the first O-ring and inserted into the upper center of the driver cylinder simulation part passing through the driver piston simulation part and disposed between the side surface of the driver piston simulation part and the inner side surface of the driver cylinder simulation part. Air driven valve actuator simulator. The apparatus according to claim 1, wherein the temperature control simulator comprises:
And a first chamber and a second chamber which are coupled to each other to close one end of the driver piston simulation unit and the driver cylinder simulation unit and inject hot air of high temperature into the inside thereof. The apparatus according to claim 1, wherein the driver cylinder simulator includes:
A cylinder flange surrounding an upper portion and a portion of a side surface of the actuator piston simulating part; And
And a cylinder body surrounding a lower portion of the one end of the driver piston simulating unit and a part of the side surface of the driver piston simulating unit. 7. The apparatus as claimed in claim 6,
And a penetrating portion formed at the upper center of the cylinder flange and moving through the simulator piston portion,
Wherein a space through which air can pass between the cylinder flange and the cylinder body is formed so that hot air of high temperature is injected into the space through the space. 8. The apparatus of claim 7, wherein the driver piston simulator
And a piston which is formed in contact with the inner surface of the cylinder body at one side and reciprocates in the first direction or the second direction. 9. The apparatus of claim 8, wherein the first O-
Wherein the inner side surface is disposed in a depressed groove along the side surface of the piston so as to surround the piston and the outer side surface protrudes from the groove to closely contact the inner surface of the cylinder body. 8. The apparatus of claim 7, wherein the driver piston simulator comprises:
A valve stem having one end coupled to the upper center of the piston and the other end extending in a second direction to pass through the penetration and the temperature control simulation; And
Further comprising a driving device formed at the other end of the valve stem to pull or push the valve stem. 11. The method of claim 10, wherein the second O-
And the valve stem is formed between the penetrating portion and the valve stem.
KR1020150121553A 2015-08-28 2015-08-28 Air operated valve actuator simulating apparatus KR101678029B1 (en)

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KR1020150121553A KR101678029B1 (en) 2015-08-28 2015-08-28 Air operated valve actuator simulating apparatus

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200030931A (en) 2018-09-13 2020-03-23 한국기계연구원 Damage simulation system for a vessel
KR102370248B1 (en) * 2021-01-14 2022-03-04 (주)수산인더스트리 Method for calculating friction force of packing for valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101136211B1 (en) * 2009-12-10 2012-04-17 한전케이피에스 주식회사 Effective-area measurement for air-operated actuator
KR101527315B1 (en) * 2014-01-22 2015-06-09 한국수력원자력 주식회사 Device for testing efficiency of spring equipped in air actuator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101136211B1 (en) * 2009-12-10 2012-04-17 한전케이피에스 주식회사 Effective-area measurement for air-operated actuator
KR101527315B1 (en) * 2014-01-22 2015-06-09 한국수력원자력 주식회사 Device for testing efficiency of spring equipped in air actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200030931A (en) 2018-09-13 2020-03-23 한국기계연구원 Damage simulation system for a vessel
KR102370248B1 (en) * 2021-01-14 2022-03-04 (주)수산인더스트리 Method for calculating friction force of packing for valve
WO2022154170A1 (en) * 2021-01-14 2022-07-21 (주)수산인더스트리 Method for calculating valve packing frictional force

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