KR20170101671A - Safety valve - Google Patents

Safety valve Download PDF

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Publication number
KR20170101671A
KR20170101671A KR1020160024522A KR20160024522A KR20170101671A KR 20170101671 A KR20170101671 A KR 20170101671A KR 1020160024522 A KR1020160024522 A KR 1020160024522A KR 20160024522 A KR20160024522 A KR 20160024522A KR 20170101671 A KR20170101671 A KR 20170101671A
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KR
South Korea
Prior art keywords
fluid
opening
closing
discharge path
safety valve
Prior art date
Application number
KR1020160024522A
Other languages
Korean (ko)
Inventor
조건래
강동수
정두훈
김은중
Original Assignee
삼성중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020160024522A priority Critical patent/KR20170101671A/en
Publication of KR20170101671A publication Critical patent/KR20170101671A/en

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    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

The present invention relates to a safety valve. According to one embodiment of the present invention, the safety valve comprises: a body unit having a fluid discharge path where fluid is discharged; a driving unit opening and closing the fluid discharge path; and a control unit interacting with the fluid to control an opening and closing motion of the driving unit. The present invention can simplify a calibration process.

Description

Safety valve {SAFETY VALVE}

The present invention relates to a safety valve.

A safety valve is a valve that prevents the internal pressure of the device from rising above a certain level by discharging the fluid when the fluid pressure in the pipe or pressure vessel exceeds a certain pressure. Therefore, it is important that the safety valve is correctly opened at a predetermined set pressure in terms of its function.

However, the safety valve can open the valve at a different pressure than the initially set pressure by changing the operating pressure involved in opening and closing the valve over time. For example, a spring-type valve driven by a spring can set the operating pressure of the valve to regulate the length of the spring to discharge the fluid, but over time, the spring loses its elasticity, The valve can be opened at pressure.

Therefore, the safety valve should be periodically inspected and calibrated so that it can always be opened at a constant pressure. In general, the valves are separated from the equipment for calibration and then inspected and calibrated using the calibrating equipment, and then the valve is installed again.

The calibration of the valve is time consuming. In particular, large-sized large-sized valves can not be transported directly by people but must be transported by means of a crane-like mechanism. Since these large-sized valves are also large in size, bring the calibrating equipment to the place where the valves are installed, it's difficult. Since hundreds to thousands of safety valves are used in large installations such as offshore plants and power plants, streamlining the valve calibration process is a critical part of facility operation.

An embodiment of the present invention aims to provide a safety valve that can simplify the calibration process.

A safety valve according to an embodiment of the present invention includes: a body portion including a fluid discharge path through which fluid is discharged; A driving unit for opening and closing the fluid discharge path; And an operation unit that interacts with the fluid to operate the opening and closing operations of the driving unit.

The driving unit includes: a first opening / closing unit moving to open / close the fluid discharge path; A first actuating portion for urging the first opening and closing portion to close the fluid discharge path; And a communicating portion for providing the fluid to a portion of the body portion where the first operating portion is located.

The first operating portion may include a first spring.

The driving unit includes: a first blocking unit that blocks the fluid discharge path from one side; And a communicating portion for providing the fluid to a portion of the body portion where the other side of the first blocking portion is located.

The first blocking portion may block the fluid discharge path at the one side by its own weight.

The communication portion may include: a pipe connecting the portion where the fluid is drawn in the body portion and a portion where the first action portion is located or a portion where the other side of the first blocking portion is located.

The tube may be formed through the first opening and closing part or the first blocking part.

Wherein the operating portion includes: a housing portion including: a housing portion including a portion in which the first operating portion is located in the body portion or a connecting passage that communicates a portion in which the other side of the first blocking portion is located and a portion in which the fluid is discharged; A second opening / closing unit moving to open / close the connection passage; And a second operating portion for urging the second opening and closing portion to close the connecting passage.

The second opening and closing part may include a second spring.

The operating portion may be detachably coupled to the body portion.

According to the embodiment of the present invention, it is possible to perform the calibration by separating only a part of the safety valve without separating the entire safety valve from the facility, so that the calibrated part becomes smaller and lighter, and the valve can be calibrated more easily.

According to the embodiment of the present invention, as the size of the portion to be calibrated in the safety valve is reduced, the size of the required calibrating equipment is reduced. Therefore, instead of carrying the safety valve to a separate calibrating shop, It is possible to reduce the time required for stopping the operation of the equipment due to the calibration, thereby reducing the process loss.

1 is a schematic view for explaining a concept of a safety valve according to an embodiment of the present invention.
2 is an exemplary cross-sectional view of a safety valve in accordance with one embodiment of the present invention.
3 is an exemplary cross-sectional view of a safety valve according to another embodiment of the present invention.
Figures 4 and 5 are exemplary cross-sectional views of a safety valve in accordance with another embodiment of the present invention.
6 is an exemplary view for explaining a state in which the safety valve according to the embodiment of the present invention closes the fluid discharge path.
FIG. 7 is an exemplary view for explaining a state in which a safety valve according to an embodiment of the present invention opens a fluid discharge path. FIG.
8 is an exemplary view for explaining a process of inspecting a safety valve according to an embodiment of the present invention.

Other advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Unless defined otherwise, all terms (including technical or scientific terms) used herein have the same meaning as commonly accepted by the generic art in the prior art to which this invention belongs. Terms defined by generic dictionaries may be interpreted to have the same meaning as in the related art and / or in the text of this application, and may be conceptualized or overly formalized, even if not expressly defined herein I will not.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms' comprise 'and / or various forms of use of the verb include, for example,' including, '' including, '' including, '' including, Steps, operations, and / or elements do not preclude the presence or addition of one or more other compositions, components, components, steps, operations, and / or components. The term 'and / or' as used herein refers to each of the listed configurations or various combinations thereof.

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

1 is a schematic view for explaining the concept of a safety valve 10 according to an embodiment of the present invention.

Referring to FIG. 1, the safety valve 10 includes a body 11, a driving unit 12, and an operating unit 13. The body part (11) is provided with the driving part (12) to control the flow of the fluid. The operating portion 13 interacts with the fluid to operate the operation of the driving portion 12. [

That is, in the safety valve 10 according to the embodiment of the present invention, the opening and closing operation of the valve is performed by the driving unit 12, and whether or not the driving unit 12 is open or closed depends on the operation unit 13 Lt; / RTI >

According to the embodiment of the present invention, when the safety valve 10 is used, the operating portion 13 is mounted on the body portion 11 when the safety valve 10 is used, and the driving portion 12 and the operating portion 13 are separated from each other. The operating portion 13 may be detached from the body portion 11 during the calibration of the safety valve 10 and may be inspected and calibrated by the calibrating device.

Also, as will be described below, the operating portion 13 may be formed to be smaller in size than the driving portion 12. As a result, as compared with the case of separating and calibrating the entire safety valve 10 from the facility, it is possible to perform the calibrating process more easily than in the case of separating only the operating portion 13 from among the safety valve 10 as in the embodiment of the present invention .

2 is an exemplary cross-sectional view of a safety valve 10 in accordance with one embodiment of the present invention.

The safety valve 10 shown in FIG. 2 includes a body portion 11, a driving portion 12, and an operation portion 13.

According to an embodiment of the present invention, the body portion 11 includes a fluid discharge path 110 through which fluid is discharged. The driving unit 12 opens and closes the fluid discharge path 110. The operating part 13 interacts with the fluid to operate the opening and closing operations of the driving part 12. [

2, the body portion 11 includes a fluid discharge path 110 through which a fluid is drawn into one side (lower side in FIG. 2) to discharge fluid to the other side (right side in FIG. 2) .

The driving unit 12 opens or closes the fluid discharge path 110 to control the flow of the fluid through the fluid discharge path 110.

According to an embodiment of the present invention, the driving unit 12 includes a first opening and closing unit 121 for opening and closing the fluid discharge path 110, a second opening and closing unit 121 for closing the fluid discharge path 110 And a communicating portion 123 for communicating the fluid to the portion 1103 of the body portion 11 where the first operating portion 122 is located .

2, the first opening and closing part 121 may include a cover for covering the fluid inlet part of the fluid discharge path 110 and a rod extending from the cover. However, the first opening and closing part 121 Is not limited to this as long as the shape and structure of the fluid discharge path 110 can open or close.

The first operating portion 122 may exert a force on the first opening and closing portion 121 to maintain the state in which the first opening and closing portion 121 closes the fluid discharge path 110. [

2, the first operating portion 122 may include a first spring, but the first operating portion 122 may have a force to maintain the first opening and closing portion 121 in a closed state But may be configured to provide force with a mechanism other than the spring as far as it is operative.

The communicating part 123 may communicate fluid in the body part 11 with the part 1103 where the first operating part 122 is located. In other words, the communicating part 123 can also provide fluid to be introduced into the fluid discharge path 110 to the part 1103 where the first operating part 122 is located.

The communicating part 123 may include a tube 123 connecting the portion 1101 into which the fluid is drawn in the body 11 and the portion 1103 where the first acting portion 122 is located .

According to an embodiment of the present invention, the tube 123 may be formed through the first opening and closing part 121.

For example, as shown in FIG. 2, the tube 123 is formed to penetrate through the lid and the rod of the first opening and closing part 121 to form a fluid inlet part 1101 and a first operating part arrangement part 1103, Respectively. As a result, a part of the fluid flowing into the fluid discharge path 110 from the safety valve 10 may be supplied to the portion 1103 where the first operating portion 122 is disposed.

However, the tube 123 is not necessarily formed through the first opening and closing part 121, but may be formed in various structures as long as the fluid inlet part 1101 and the first operating part arranging part 1103 are communicated with each other .

3 is an exemplary cross-sectional view of a safety valve 10 according to another embodiment of the present invention.

For example, as shown in FIG. 3, the tube 123 may be formed to bypass the body portion 11 instead of being formed through the first opening and closing portion 121.

Referring again to FIG. 2, the operating portion 13 interacts with the fluid to manipulate the opening and closing operations of the driving portion 12. FIG.

According to an embodiment of the present invention, the operating portion 13 may include a housing portion 131, a second opening / closing portion 132, and a second operating portion 133.

The housing part 131 may include a connecting passage 130 for communicating a portion 1103 where the first operating portion 122 is located and a portion 1102 through which fluid is discharged from the body portion 11 have.

2, the housing part 131 also has a connection passage 130 through which the fluid passes, and the connection passage 130 connects the first operating part 122 of the driving part 12 The fluid can be supplied from the portion 1103 to be discharged and the fluid can be discharged to the fluid discharge portion 1102 of the fluid discharge path 110.

According to an embodiment of the present invention, the portion 1103 where the first operating portion 122 is located and the inlet portion 1301 of the connecting passage 130 may be connected through the first pipe 111, The outlet portion 1302 of the connection passage 130 and the fluid discharge portion 1102 of the fluid discharge path 110 may be connected through the second pipe 112.

2, the first tube 111 may be formed to pass through the body portion 11 and the second tube 112 may be formed by bypassing the body portion 11, The specific shapes of the first and second pipes 111 and 112 are not limited thereto.

The second opening and closing part 132 can be moved to open and close the connection passage 130.

As shown in FIG. 2, the second opening and closing part 132 may include a lid covering the connection passage 130 and a rod extending from the lid, but the present invention is not limited thereto.

The second operating portion 133 may apply a force to the second opening and closing portion 132 to close the connecting passage 130.

As shown in FIG. 2, the second operating portion 133 may include a second spring. However, as in the case of the first operating portion 122, the second operating portion 133 is not limited to a spring other than the spring (not shown) so long as the second opening and closing portion 132 is in a closed state for closing the connecting passage 130 Mechanism can be configured to provide force.

The safety valve 10 shown in FIGS. 2 and 3 is configured such that the driving part 12 includes the first operating part 122 to apply an external force to the first opening and closing part 121 The driving part 12 may be driven by the own weight of the first opening and closing part 121 without the first operating part 122. [

4 and 5 are exemplary cross-sectional views of a safety valve 10 according to another embodiment of the present invention.

Referring to FIG. 4, in the safety valve 10 according to another embodiment of the present invention, the driving part 12 includes a first blocking part 124 for blocking the fluid discharge path 110 at one side, And a communicating part 123 for communicating the first cut-off part 124 with the other part of the body part 11 where the first cut-off part 124 is located.

The first blocking portion 124 of the safety valve 10 of FIG. 4 is similar in structure and operation to the first opening and closing portion 121 of FIGS. 2 and 3, but the external force of the first operating portion 122 Unlike the first opening / closing part 121 which maintains the closed state by the first blocking part 124, the first blocking part 124 can block the fluid discharge path 110 from one side (lower side in FIG. That is, in FIG. 4, the force for keeping the first blocking portion 124 in the closed state is the gravity acting on the first blocking portion 124.

In this case as well, the driving unit 12 includes the communication part 123, and the fluid inflow part 1101 of the fluid discharge path 110 and the other side of the first blocking part 124 Can be communicated with each other.

As shown in FIG. 4, the communicating part 123 may include a tube formed through the first blocking part 124. However, as shown in FIG. 5, the communication part 123 may include a tube separately formed to bypass the body part 11. FIG.

Referring again to FIG. 2, the operating portion 13 may be detachably coupled to the body portion 11 through a fastening means 134 such as a bolt. That is, the operating portion 13 is coupled to the body portion 11 by the fastening means 134, and may be separated from the body portion 11 by operating the fastening means 134.

Hereinafter, the operation of the safety valve 10 according to the embodiment of the present invention described above with reference to FIGS. 6 and 7 will be described.

6 and 7 are illustrative drawings for explaining the state in which the safety valve 10 according to the embodiment of the present invention is closed and the fluid discharge path 110 is opened.

As described above, since the fluid drawn into the fluid discharge path 110 is also provided as the portion 1103 where the first operating portion 122 is located through the communication portion 123, (1103) has the same pressure P i as the fluid inlet portion (1101).

The fluid is supplied to the connecting passage 130 of the operating portion 13 via the first operating portion arranging portion 1103 so that the connecting passage inlet portion 1301 is also connected to the first operating portion arranging portion 1103, Has the same pressure P i as the fluid inlet portion 1101.

Since the outlet portion 1302 of the connection passage 130 communicates with the portion 1102 through which fluid is discharged in the fluid discharge path 110, the connection passage outlet portion 1302 is connected to the fluid outlet portion 1102, P o .

According to the embodiment of the present invention, as shown in FIG. 6, the force F a applied to the second opening and closing part 132 by the second operating part 133 of the operating part 13 is smaller than the connecting passage entrance part The second opening and closing part 132 closes the connecting passage 130 and closes the first opening and closing part 132 of the driving part 12 if the force F i applied to the second opening and closing part 132 by the pressure P i of the driving part 1301 is larger than the force F i applied to the second opening and closing part 132. [ The opening and closing part 121 also closes the fluid discharge path 110.

7, when the fluid pressure rises and a force F i applied to the second opening and closing part 132 by the pressure P i of the connecting passage inlet part 1301 is lower than the force F i applied to the second opening and closing part 132, The second opening and closing part 132 opens the connecting passage 130 when the second operating part 133 is larger than the force F a applied to the second opening and closing part 132.

Generally, P o corresponding to the external pressure (for example, atmospheric pressure) of the facility is lower than P i corresponding to the pressure inside the facility. Therefore, when the second opening and closing part 132 opens the connection passage 130, 1301 is lower than P i and the pressure of the first working part 1103 is lower than P i so that the first opening and closing part 121 of the driving part 12 is also in fluid communication with the fluid discharge path 110 .

The force applied to the second opening and closing part 132 by the pressure of the connecting passage inlet part 1301 is greater than the force F a applied to the second opening and closing part 132 by the second operating part 133 The second opening and closing part 132 closes the connecting passage 130 again.

As a result, the pressure of the first working portion 1103 becomes equal to the pressure P i of the fluid inlet portion 1101, so that the first opening and closing portion 121 also closes the fluid discharge path 110.

In this way, the safety valve 10 according to the embodiment of the present invention can affect the operation of the driving unit 12 by the operating unit 13, and by calibrating the operating unit 13 to perform a normal operation The safety valve 10 can be calibrated.

Also, as described above, the operation unit 13 can be made smaller than the drive unit 12, and the operation of the valve 13 can be further simplified by miniaturizing the operation unit 13 to be calibrated .

8 is an exemplary view for explaining a process of inspecting the safety valve 10 according to an embodiment of the present invention.

8, when calibrating the safety valve 10 according to an embodiment of the present invention, it is not necessary to separate the entire safety valve 10 from the facility, but to determine the opening and closing operation of the safety valve 10 It is possible to perform inspection and calibration by separating only the operation unit 13 which is provided with the control unit.

As a result, according to the embodiment of the present invention, as compared with the prior art in which the whole valve is separated and calibrated, the portion to be calibrated becomes smaller and lighter, and calibration can be performed more easily.

In addition, since the portion to be calibrated by the safety valve 10 is miniaturized, the size of the equipment used for calibrating can be reduced. Therefore, instead of carrying the valve to a separate calibrating shop as in the prior art, You will be able to carry out calibration on the spot. As a result, according to the embodiment of the present invention, it is possible to shorten the time for which the operation of the facility is stopped due to the calibration, thereby reducing the process loss.

While the present invention has been described with reference to the exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Those skilled in the art will appreciate that various modifications may be made to the embodiments described above. The scope of the present invention is defined only by the interpretation of the appended claims.

10: Safety valve
11:
12:
13:
110: fluid discharge path
111: 1st pipe
112:
121: First opening / closing part
122: first working portion
123:
124:
131: housing part
132: second opening / closing part
133: Second working portion
134: fastening means
1101: fluid inlet portion
1102: fluid discharge portion
1103: First working portion placement portion
1301: Connection passage inlet portion
1302: Connection passage outlet portion

Claims (10)

A body portion including a fluid discharge path through which fluid is discharged;
A driving unit for opening and closing the fluid discharge path; And
An operating portion that interacts with the fluid to operate opening and closing operations of the driving portion;
. The method according to claim 1,
The driving unit includes:
A first opening / closing unit moving to open / close the fluid discharge path;
A first actuating portion for urging the first opening and closing portion to close the fluid discharge path; And
A communicating portion for providing the fluid to a portion of the body portion where the first operating portion is located;
. 3. The method of claim 2,
Wherein the first actuating portion comprises a first spring. The method according to claim 1,
The driving unit includes:
A first blocking portion for blocking the fluid discharge path at one side; And
A communicating portion for providing the fluid to a portion of the body portion where the other side of the first blocking portion is located;
. 5. The method of claim 4,
And the first blocking portion blocks the fluid discharge path at the one side by its own weight. The method according to claim 2 or 4,
The communication portion includes:
And a pipe connecting the portion in which the fluid is drawn in the body portion and a portion where the first action portion is located or a portion where the other side of the first cutoff portion is located. The method according to claim 6,
Wherein the tube is formed through the first opening and closing part or the first blocking part. The method according to claim 2 or 4,
Wherein:
A housing part including a connection part for communicating a part where the first action part is located in the body part or a part where the other side of the first shield part is positioned and a part where the fluid is discharged;
A second opening / closing unit moving to open / close the connection passage; And
A second operating portion that acts to force the second opening and closing portion to close the connecting passage;
. 9. The method of claim 8,
And the second opening and closing part includes a second spring. The method according to claim 1,
Wherein the operating portion is detachably coupled to the body portion.
KR1020160024522A 2016-02-29 2016-02-29 Safety valve KR20170101671A (en)

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Application Number Priority Date Filing Date Title
KR1020160024522A KR20170101671A (en) 2016-02-29 2016-02-29 Safety valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160024522A KR20170101671A (en) 2016-02-29 2016-02-29 Safety valve

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Family Applications (1)

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KR1020160024522A KR20170101671A (en) 2016-02-29 2016-02-29 Safety valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU183274U1 (en) * 2018-07-02 2018-09-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный технический университет" SAFETY VALVE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU183274U1 (en) * 2018-07-02 2018-09-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный технический университет" SAFETY VALVE

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