KR200482138Y1 - Relief valve - Google Patents

Relief valve Download PDF

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Publication number
KR200482138Y1
KR200482138Y1 KR2020150003618U KR20150003618U KR200482138Y1 KR 200482138 Y1 KR200482138 Y1 KR 200482138Y1 KR 2020150003618 U KR2020150003618 U KR 2020150003618U KR 20150003618 U KR20150003618 U KR 20150003618U KR 200482138 Y1 KR200482138 Y1 KR 200482138Y1
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KR
South Korea
Prior art keywords
relief valve
pressure
control object
weight
head
Prior art date
Application number
KR2020150003618U
Other languages
Korean (ko)
Other versions
KR20160004287U (en
Inventor
안경준
정성훈
박찬현
Original Assignee
(주)에스엔텍
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.)
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Publication date
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Priority to KR2020150003618U priority Critical patent/KR200482138Y1/en
Publication of KR20160004287U publication Critical patent/KR20160004287U/en
Application granted granted Critical
Publication of KR200482138Y1 publication Critical patent/KR200482138Y1/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
    • F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-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
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
    • 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
    • F16K27/0209—Check valves or pivoted valves

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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 relief valve, and more particularly, to a relief valve, more specifically, a valve that opens or closes as it moves in a vertical direction, so that even when a difference between an internal pressure and an external pressure is small, And to a semi-permanently usable relief valve.

Description

Relief valve

The present invention relates to a relief valve, and more particularly, to a relief valve, more specifically, a valve that opens or closes as it moves in a vertical direction, so that even when the difference between the internal pressure of the pressure control object and the external pressure is small, And to a semi-permanently usable relief valve.

Generally, a relief valve is a valve that regulates pressure by discharging the gas inside to the outside when the pressure of a pressure control object such as a chamber or a pipe exceeds a predetermined pressure.

A conventional relief valve is disclosed in Korean Patent No. 10-0832261 entitled " Fuel Supply Device for Gas Fuel Vehicle Including Relief Valve and Relief Valve for Fuel Filter ", Korean Patent Laid-Open No. 10-1998-0039026 "Relief Valve for Oil Pump & Open No. 10-2005-0048151 "Structure of Variable Relief Valve ".

In the conventional relief valve, the spring is contracted due to the difference between the internal pressure of the valve and the external pressure, and the internal gas is discharged to the outside to control the internal pressure of the valve.

However, the conventional relief valve has a problem that the spring is broken due to long-term use, so that the pressure control can not be smoothly performed and the service life is short.

Further, in the conventional relief valve, when the pressure inside the valve is low, that is, when the internal pressure is 2 kpa or less, the spring is not operated precisely, and the internal pressure can not be precisely controlled.

The present invention is designed to solve these problems. The object of the present invention is to control the internal pressure of a pressure control object such as a chamber or a pipe without using a spring, to reduce the occurrence of a failure due to a spring, And to provide a usable relief valve.

Another object of the present invention is to provide a relief valve capable of precisely controlling the internal pressure even when the internal pressure of the pressure control object is lower than a predetermined pressure.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention provides a relief valve for regulating a pressure in a pressure control object, such as a chamber or a pipe, which is formed in a tubular shape having a through hole with a predetermined diameter, A body having one end exposed to the outside of the pressure control object and the other end connected to the inside of the pressure control object; A guide plate provided inside the main body in the form of a disk and having a guide hole formed at a central portion thereof and having a plurality of gas passage holes through which gas can pass between the guide holes and the outer peripheral surface; A body portion fitted in the guide hole so as to be movable up and down; And a head portion integrally formed on an upper portion of the body portion with a larger diameter than the body portion and having a bottom edge which is caught on the upper surface of the body. And an engaging member extending outwardly from a predetermined position of the body so as to be caught by the lower surface of the guide plate when the weight is further increased by a predetermined distance, wherein a difference between an internal pressure and an external pressure of the pressure- And when the difference between the internal pressure and the external pressure is larger than the load of the weight, the weight further rises and moves to the upper surface of the main body, And the relief valve is opened.

In a preferred embodiment, a guide tube having a predetermined length is inserted into the guide hole, and the body is inserted into the guide tube and guided.

In a preferred embodiment, the guide tube is made of Teflon.

In a preferred embodiment, the bottom edge of the head portion is tapered,

The upper surface of the body tapers to correspond to the head.

In a preferred embodiment, the apparatus further comprises an o-ring provided between the head and the upper surface of the main body and sealing between the head and the upper surface of the main body.

In a preferred embodiment of the present invention, the auxiliary weight is detachably attached to the lower portion of the body.

The present invention also provides a deposition chamber apparatus provided with a relief valve of the present invention.

The present invention has the following excellent effects.

According to the relief valve of the present invention, since the spring is not used and the weight is moved in the vertical direction, the valve can be opened or closed to reduce the occurrence of malfunction caused by the spring, and as long as there is no change in mass of the weight, There are benefits available.

According to the relief valve of the present invention, when the internal pressure of the pressure regulating object is lower than a predetermined pressure, the valve is opened and closed according to the difference between the internal pressure and the external pressure of the pressure regulating object, The pressure can be precisely controlled.

1 is a view showing a relief valve according to an embodiment of the present invention installed on a pressure control object.
FIG. 2 is a perspective view of a relief valve according to an embodiment of the present invention. FIG.
3 is a cross-sectional perspective view of a relief valve according to one embodiment of the present invention.
FIG. 4 is a view illustrating an example in which a relief valve according to an embodiment of the present invention is installed in a pipe.
5 is a view illustrating an operation of a relief valve according to an embodiment of the present invention.

The terms used in this invention have been chosen from the most commonly used generic terms possible, but in certain cases there are also terms chosen arbitrarily by the applicant. In this case, consider the meanings used in the detailed description of the design, The meaning must be grasped.

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

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

2 is a perspective view illustrating a relief valve according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of the relief valve according to an embodiment of the present invention. FIG. 1 is a cross-sectional perspective view illustrating a relief valve according to an embodiment.

1 to 3, the relief valve 100 according to an embodiment of the present invention discharges the gas inside the pressure control object, such as the pipe 10 or the chamber 20, And includes a main body 110, a guide plate 120, a weight 130, and an engaging member 140.

The main body 110 has a tubular shape with a through-hole 111 having a predetermined diameter, and is installed in the pressure control object.

One end 112 of the main body 110 is exposed to the outside of the pressure control object and the other end 113 is installed to communicate with the inside of the pressure control object.

In addition, the cross section of the body 110 may be circular or polygonal, but is not limited thereto.

One end 112 and the other end 113 of the main body 110 may extend in the outer circumferential direction and have a diameter larger than a diameter of a central portion of the main body 110.

As shown in FIG. 4, this is for easy insertion into the installation position of the pipe 20 or the chamber.

In addition, the other end 113 of the main body 110 can be easily attached to a mounting position and clamping.

The guide plate 120 is provided in the main body 110 in a disc shape to guide the weight 130.

The guide plate 120 has a guide hole 121 at a central portion thereof and a plurality of gas holes 122 formed between the guide hole 121 and the outer peripheral surface.

Here, the gas passing hole 122 is a hole through which the gas introduced from the pressure control object can pass.

In addition, the guide plate 120 can control the diameter of the gas passage hole 122 to prevent contaminants from flowing from the pressure control object to the outside.

The weights 130 are inserted into the guide holes 121 and open or shut off the valves while vertically moving. The weights 130 include a body part 131 and a head part 132.

Here, the body part 131 is fitted in the guide hole 121 so as to move in the vertical direction.

The head 132 is integrally formed on the upper portion of the body 131 with a larger diameter than the body 131.

The lower edge 132a of the head 132 is engaged with the edge of the through hole 111 of the upper surface 114 while the body 131 is inserted into the guide hole 121. [

At this time, since the head 132 is closely attached to the edge of the through hole 111 of the upper surface 114, the valve is blocked.

The bottom edge 132a of the head 132 is tapered and the edge of the through hole 111 is tapered so as to correspond to the bottom edge 132a of the head 132 Do.

This is to ensure that the head weights 130 are brought into close contact with the edges of the through holes 111 when they are lowered.

The latching member 140 is a member extending outward from a predetermined position of the body part 131. [

When the weight 130 is lifted by a predetermined distance due to a difference between the internal pressure of the pressure control object and the external pressure, the engaging member 140 is positioned on the lower surface of the guide plate 120 Thereby preventing the weight 130 from being detached.

Hereinafter, the principle of operation of the relief valve 110 according to the present invention will be described in detail with reference to FIG.

The relief valve 110 according to the present invention is configured such that when the difference between the internal pressure and the external pressure of the pressure control object is smaller than the load of the weight 130, 114 so that gas is prevented from being discharged from the inside of the pressure control object.

When the difference between the internal pressure and the external pressure is greater than the load of the weight 130, the weight 130 moves upward and the upper surface 114 of the body 110 is opened, The gas is discharged from the inside of the control object.

That is, the relief valve 100 according to the present invention can adjust the internal pressure of the pressure control object by varying the load of the weight 130, and can accurately control the internal pressure even when the internal pressure is lower than a predetermined pressure .

 In addition, the relief valve 110 according to the present invention may further include a guide pipe 150 fitted in the guide hole 121.

The guide pipe (150) is a cylindrical pipe having a predetermined length, and the body part (131) is fitted.

This serves to guide the weight 130 to move up and down in the vertical direction without being separated or shaken.

In addition, the guide pipe 150 is preferably made of Teflon.

This is to reduce the frictional force generated by friction between the guide pipe 150 and the weight 130.

The relief valve 100 according to the present invention may further include a sealing bracket 190 installed between the upper surface 114 and the guide plate 120.

The sealing bracket 190 is in close contact with the tapered head portion 132 to seal between the head portion 132 and the upper surface of the main body 110.

In the meantime, the relief valve 100 according to the present invention is not provided with the sealing bracket 190, but may be provided with an O-ring (not shown).

The O-ring is provided at the lower edge 132a of the head 132 or at the edge of the through-hole 111 of the upper surface 114 of the main body 110 so that the head 132 and the main body 110 ) Can be easily sealed.

 In addition, the relief valve 100 according to the present invention may further include an auxiliary weight 160 installed to be detachable from the lower portion of the body portion 131.

This makes it easy to increase the load of the weight weight as needed, so that the internal pressure of the pressure control object can be easily adjusted to a higher pressure.

At this time, an auxiliary weight mounting hole 131a may be formed in the lower part of the body part 131 so that the auxiliary weight 160 can be easily inserted.

However, the attaching / detaching position of the auxiliary weight 160 is not limited.

In addition, the relief valve 100 according to the present invention may further include a fixing block 170 and a latch 180.

The fixing block 170 and the latch 180 are support means for facilitating the installation of the guide plate 120.

The fixing block 170 supports the guide plate 120 at a lower portion of the guide plate 120 so that the guide plate 120 is positioned at an appropriate position inside the main body 110.

At this time, the latch 180 is formed to extend from the lower portion of the main body 110 in the center direction, and the latch 170 is hooked on the upper portion.

Also, the relief valve 100 of the present invention may be installed in a vacuum chamber in which a deposition process is performed or in a pipe connected to the vacuum chamber, and the present invention may be provided as a deposition chamber device in which a relief valve 100 is installed have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various changes and modifications will be possible.

110: main body 120: guide plate
130: weight 131: body part
132: head part 140: engaging member
150: guide tube 160: auxiliary weight
170: fixed block 180:
190: Sealing bracket

Claims (7)

A relief valve for controlling the pressure in a pressure control object, such as a chamber or a pipe,
A body having a tubular shape with a predetermined diameter through hole and being provided on the pressure control object and having one end exposed to the outside of the pressure control object and the other end connected to the inside of the pressure control object;
A guide plate provided inside the body in the form of a disk and having a guide hole formed at a central portion thereof and having a plurality of gas passage holes through which gas can pass between the guide holes and the outer peripheral surface;
A body portion fitted in the guide hole so as to be movable up and down; And a head portion integrally formed on the upper portion of the body portion and having a diameter larger than that of the body portion and exposed to the outside of the pipe so as to be hooked on the upper surface of the body bottom edge.
An engaging member extending outward from a predetermined position of the body so as to be engaged with a lower surface of the guide plate when the weight is further increased by a predetermined distance;
An O-ring provided between the head and the upper surface of the main body and sealing between the head and the upper surface of the main body; And
And an auxiliary weight attached to the lower portion of the body so as to be detachable,
When the difference between the internal pressure and the external pressure of the pressure control object is smaller than the load of the weight, the head is brought into close contact with the upper surface of the body,
When the difference between the internal pressure and the external pressure is larger than the load of the weight, the weight further moves upward to open the upper surface of the body,
A guide tube of Teflon having a predetermined length is inserted into the guide hole, the body is guided by being inserted into the guide tube,
Wherein a bottom edge of the head portion is tapered and an upper surface of the main body is tapered to correspond to the head portion.
delete delete delete delete delete A deposition chamber apparatus comprising the relief valve of claim 1.
KR2020150003618U 2015-06-05 2015-06-05 Relief valve KR200482138Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020150003618U KR200482138Y1 (en) 2015-06-05 2015-06-05 Relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020150003618U KR200482138Y1 (en) 2015-06-05 2015-06-05 Relief valve

Publications (2)

Publication Number Publication Date
KR20160004287U KR20160004287U (en) 2016-12-14
KR200482138Y1 true KR200482138Y1 (en) 2017-01-02

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KR2020150003618U KR200482138Y1 (en) 2015-06-05 2015-06-05 Relief valve

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111173972A (en) * 2020-03-06 2020-05-19 河北金牛旭阳化工有限公司 Safety valve and safety valve protection system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004286040A (en) * 2001-10-01 2004-10-14 Viscodrive Japan Ltd Pressure relief valve
JP2005147221A (en) * 2003-11-13 2005-06-09 Miyawaki Inc Constant flow rate valve
KR101065729B1 (en) * 2010-10-27 2011-09-30 주식회사 프로세이브 Check-lifter for relief valve and relief valve having the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004286040A (en) * 2001-10-01 2004-10-14 Viscodrive Japan Ltd Pressure relief valve
JP2005147221A (en) * 2003-11-13 2005-06-09 Miyawaki Inc Constant flow rate valve
KR101065729B1 (en) * 2010-10-27 2011-09-30 주식회사 프로세이브 Check-lifter for relief valve and relief valve having the same

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KR20160004287U (en) 2016-12-14

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