KR101736365B1 - Cryogenic valve - Google Patents

Abstract

The present invention relates to a cryogenic valve which can be used to be easily operated with respect to opening and closing a valve in a cryogenic state of a fluid transferred while closely opening and closing a flow path of the fluid flowing in a cryogenic state. More specifically, provided is the cryogenic valve having a structure in which a flow path is formed in a lower portion of a valve body, and a vertical bonnet is formed in an upper portion of the valve body. A stem having a disk opening and closing the flow path is formed in the valve body and the bonnet, and a handle is formed to rotate the stem by being connected to an upper end of the stem more extending in an upper end of the bonnet in a vertical direction.

Description

Cryogenic Valve {CRYOGENIC VALVE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cryogenic valve, and more particularly, to a cryogenic valve which can be used to easily open and close a valve even in a very low temperature state of a fluid to be transferred, will be.

Cryogenic fluids are generally used in the chemical and mechanical industry, the medical industry, and many other industries related to semiconductor technology. For example, a cryogenic fluid that maintains a liquid state only at a cryogenic temperature region, such as liquid helium and liquid hydrogen, is very likely to be vaporized depending on the temperature and pressure of the surrounding environment. Therefore, a hydraulic system Should be used. As another example, cryogenic hydraulic systems are also used in the energy industry using liquefied natural gas (LNG). In such a cryogenic hydraulic system, the fluid flows from very high pressure to very low temperature, so there is always the possibility of leakage and the possibility of freezing.

According to the prior art, valves for cryogenic fluids used in cryogenic hydraulic systems have been developed and used primarily for liquefied natural gas. However, since the pressure and temperature range in which liquefied natural gas is used is significantly different from the pressure and temperature range in which liquid helium or liquid hydrogen is kept in a liquid state, valves developed for liquefied natural gas are applied to other technical fields There are a lot of things to do. That is, methane, which is the main component of liquefied natural gas, is liquefied when it is cooled below -161.5 ° C under 1 atm, while liquid hydrogen is maintained only at a temperature below -253 ° C. Therefore, when a valve for a cryogenic fluid for a conventional liquefied natural gas is used, a fluid to be liquefied is leaked by thermal expansion, or a phenomenon occurs in which a movable part such as a valve is frozen, that is, Thereby causing an operation failure state.

Korean Patent No. 10-0978061 (entitled Cryogenic Valve)

Accordingly, the present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an apparatus and a method for operating a handle by adding a heat dissipating or insulating means for preventing sticking of a handle due to condensation around a stem according to a temperature difference of ultra- The present invention has been made in view of the above problems, and it is an object of the present invention to provide a cryogenic valve which is designed to reduce a stem length of a cryogenic valve relative to a conventional cryogenic valve.

The present invention is characterized in that a flow path is formed in a lower valve body, a vertical bonnet is formed on the valve body, a stem having a disk for opening and closing the flow path is formed in the valve body and the bonnet, And a handle connected to the upper end of the vertically extending stem at the upper end of the stem for rotating the stem,

A packing hole accommodated in the packing hole is formed so as to have a larger inner diameter than an inner diameter through which the stem passes in a predetermined length from an upper center of the bonnet to an upper end of the bonnet, And a pressurizing unit including a lower pressurizing unit and an upper support unit which are pressed into the packing hole while pressing the upper part of the packing, and a first through hole penetrating the upper part of the pressurizing unit and passing through the upper part of the pressurizing unit, A first fastening hole formed on both sides of the upper portion of the support portion, and fastening means coupled to the flange of the bonnet,

A horizontal plate-like clearance support plate positioned between the flange of the bonnet and the handle to form a second through-hole at the center of the stem so as to extend the stem, A supporting means for engaging with the flange of the bonnet as the fastening means is provided,

And a hemispherical anti-condensation portion connected to a lower end of the bonnet and having a lower portion coupled to an upper portion of the valve body and having a plurality of openings penetrating the upper peripheral surface thereof is formed in a columnar shape.

[0029] [22] In the meantime, a fastening part having a threaded portion formed on an upper outer circumferential surface and a lower outer circumferential surface with respect to a stepped portion protruding in a circumferential direction at the center of the outer circumferential surface, the fastening portion having a plurality of first through- A socket portion formed of a shield plate having a third through hole formed in its center so as to allow the stem to pass therethrough,

A casing disposed between the socket and the valve body and having an upper portion coupled to a lower coupling portion of the socket portion and a lower portion coupled to the valve body to define a space therein,

A first heat transfer part having a cylindrical through-hole formed in a space of the casing to allow the stem to pass through the center, a vertical first connection pin connected to an outer circumferential surface of the first heat transfer part and projecting in four directions, A heat transfer member composed of a cylindrical second heat transfer portion which surrounds the first connection pin in each of the four directions while being connected to the inner circumferential surface of the connection pin end portion and a plurality of vertical second connection pins radially protruded from the outer circumferential surface of the second heat transfer portion, Further comprising a cryogenic valve.

In addition, a plurality of vertical third connection pins, which are provided inside the condensation preventing portion and are connected to the inner circumferential surface to radially protrude and have a predetermined length so as to allow the stem to pass through the center, A third heat transfer portion,

A plurality of fourth connecting pins spaced apart radially from the outer circumferential surface of the first body and having a receiving hole formed in the third heat transfer portion, And a fourth heat transfer part formed of a cylindrical second body surrounding the plurality of fourth connection pins.

The cryogenic valve according to the present invention has an effect of preventing the fixing of the handle by adding a heat radiating and keeping means to the lower part of the bonnet in order to prevent the condensation phenomenon of the stem or the bonnet connected to the flow path of the fluid at extremely low temperature, So that it is possible to simplify the operation and to design the stem length of the cryogenic valve so as to be relatively short compared to the conventional one, and to reduce the material.

1 is a perspective view of a cryogenic valve according to an embodiment of the present invention;
2 is an internal cross-sectional view of a cryogenic valve according to one embodiment of the present invention.
FIG. 3 is an exploded view of an assembly of a cryogenic valve according to an embodiment of the present invention, in which a stem having an anti-condensation portion is installed.
FIG. 4 is an exploded view of a bonnet according to an embodiment of the present invention in which a pressurizing means is installed in a bonnet. FIG.
FIG. 5 is an exploded view of a bonnet in which a supporting means is installed on a flange of a bonnet according to an embodiment of the present invention. FIG.
6 is a cross-sectional view of the cryoprotecting portion of the cryogenic valve according to the embodiment of the present invention in which the socket portion-casing-heat transfer member is installed.
FIG. 7 is an exploded view of a cryogenic preventing part of a cryogenic valve according to an embodiment of the present invention, in which a socket, a casing and a heat transfer member are installed.
8 is a perspective view (a) of a socket portion and a perspective view (b) of a heat transfer member in a cryogenic valve according to an embodiment of the present invention.
FIG. 9 is an exploded view of a cryogenic valve according to an embodiment of the present invention, in which a third thermally-end-fourth thermally-end portion is installed. FIG.
10 is a perspective view (a) of the third heat transfer part and a perspective view (b) of the fourth heat transfer part in the cryogenic valve according to the embodiment of the present invention.
11 is a rear perspective view (a) and a front perspective view (b) of a second connection pin of a heat transfer member in a cryogenic valve according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The same reference numerals in the drawings denote like elements throughout the drawings.

1 to 5, a flow path 21 is formed in a lower valve body 20, a vertical bonnet 30 is formed on an upper portion of the valve body 20, A stem 40 having a disk 41 for opening and closing the flow path 21 is formed in the body 20 and the bonnet 30 and a stem 40 extending vertically from the upper end of the bonnet 30 And a handle (50) connected to an upper end of the stem (40) for rotating the stem (40) is formed. The cryogenic valve (10)

A cylindrical flange 31 connected to the upper end of the bonnet 30 is formed and the inner diameter of the bonnet 30 is larger than the inner diameter of the stem 40 passing through the upper center of the bonnet 30 A packing 65 accommodated in the packing hole 33 is formed and a lower pressing part 61 which is pressed into the packing hole 33 while pressing the upper part of the packing 65, The first through hole 63 penetrating the upper portion of the support portion 62 under the pressing portion 61 and bearing the stem 40 is formed while the pressing portion 60 is formed of the supporting portion 62, Is fastened to the flange 31 of the bonnet 30 by fastening means 80a in a first fastening hole 64 formed on both sides of the upper portion of the support portion 62,

A second through hole 72 is formed at the center so as to extend the stem 40 between the flange 31 of the bonnet 30 and the handle 50 and a second fastening hole 73 is formed on both sides of the stem 40 (70) which is coupled to the flange (31) of the bonnet (30) by a fastening means (80b) through a second fastening hole (73) of the clearance support plate (71) Respectively,

A hemispherical anti-condensation part 100 connected to the lower end of the bonnet 30 and having a lower part coupled to the upper part of the valve body 20 and having a plurality of openings 101, Temperature valve (10).

As shown in FIG. 2, a flow path 21 is formed inside the valve body 20 located at a lower portion of the present invention, and the ultra-low temperature fluid moves through the flow path 21 inside the fluid And is structured so as to be opened and closed by the installed disk 41.

2 and 3, a vertical bonnet 30 is formed on the valve body 20 to support the stem 40. The valve body 20 and the bonnet 30 A stem 40 having a disk 41 for opening and closing the flow path 21 is formed and connected to the upper end of a stem 40 extending vertically at the upper end of the bonnet 30, A handle 50 for rotating the handle 50 is formed.

As shown in FIG. 4, the bonnet 30 and the stem 40 can be prevented from leaking and leaking due to contraction and expansion of the bonnet 30 and the stem 40 while supporting the rotation of the stem 40. The coupling structure of the pressing means 60 is formed with a cylindrical flange 31 connected to the upper end of the bonnet 30, A packing hole 33 having a larger inner diameter than the inner diameter of the stem 40 is formed at a predetermined length from the upper center of the upper portion 30 to the packing hole 33, The lower pressing portion 61 and the upper supporting portion 62 integrally pressurized by the packing hole 33 constitute the pressing means 60 while pressing the upper portion of the packing 65.

A circular plate-shaped flange 31 protruding in the circumferential direction is integrally connected to the upper end of the bonnet 30. The bonnet 30 has a cylindrical shape with a guide hole 32 penetrating the upper and lower portions And the stem 40 is inserted through the guide hole 32 to have a tight coupling structure.

A packing hole 33 having an inner diameter larger than the outer diameter of the stem 40 by a predetermined length is formed inside the upper part of the bonnet 30, that is, the upper end of the guide hole 32, The pressure applying part 61 is brought into contact with the upper surface of the packing 65 while the one or two or more packings 65 are tightly inserted into the packing hole 33 and connected to the upper part of the pressing part 61 The pressing means 60 is provided.

4, the pressing means 60 includes a packing 65 which is extended into the packing hole 33, a pressing portion 61 provided on the upper portion of the packing 65, A first through hole 63 is formed so as to allow the stem 40 to pass while passing through the center of the support portion 62. At this time, the center of the pressing portion 61 is also penetrated A stem 40 is passed through the support portion 62. The support portion 62 has a plate shape developed on both sides with respect to the pressing portion 61 and a first fastening hole 64 is formed on both sides of the support portion 62, Is screwed into the hole 64 on the flange 31 of the bonnet 30 through the fastening means 80a to fix the pressing means 60 to the flange 31. [

5, while supporting the length of the stem 40 exposed between the flange 31 of the bonnet 30 and the handle 50 and exposed to the upper portion of the flange 31 of the bonnet 30, It is possible to prevent the occurrence of clearance between the operating system 40 and the bonnet 30 while minimizing the clearance deviation caused by the fatigue of the postal stem 40, The support means 70 is provided so as to adjust the tension of the coupling relationship with the support member 70 properly.

5, the support means 70 includes a horizontal through-hole support plate 73 having a second through-hole 72 formed at the center thereof so as to extend the stem 40, (80b) such as a bolt through a second fastening hole (73) of the clearance support plate (71).

The stem 40 is passed through the second through hole 72 of the clearance support plate 71 so as to be closely contacted with the outer circumferential surface of the stem 40, A packing 74 is installed and connected to the flange 31 through the second fastening hole 73 of the clearance support plate 71 so as to be spaced apart from the flange 31 and the clearance support plate 71, The clearance support plate 71 is fixedly coupled to the flange 31 by using the same fastening means 80b.

Instead of the lower portion of the bonnet 30 being directly coupled to the upper portion of the valve body 20, as shown in FIGS. 1 and 2, the anti-condensation portion 100 is provided below the bonnet 30 The disc 31 and the stem 30 formed on the flow path 21 of the valve body 20 by the temperature difference between the ultra-low temperature state or the ultra-low temperature state fluid of the fluid moving to the flow path 21 of the valve body 20, Preventing part 100 so as to prevent the operation of the stem 40 from being disabled due to condensation, adhesion or freezing at the joint part of the valve body 20 or the outer peripheral surface of the stem 40 above the valve body 20, .

As shown in FIG. 3, the anti-condensation part 100 is connected to the lower end of the bonnet 30, and the lower part is coupled to the upper part of the valve body 20, and a plurality of openings 101, Temperature environment generated in the cryogenic fluid through the plurality of openings 101 spaced from the outer circumferential surface of the upper portion of the anti-condensation part 100, or the outside air is introduced into the anti-condensation part 100 The atmosphere in the low-temperature atmosphere inside is changed to the atmosphere at room temperature, thereby preventing condensation and sticking of the stem 40.

At this time, in the embodiment of the present invention, the inside of the anti-condensation part 100 may form an empty space form, but the inside of the anti-condensation part 100 may be formed in a (Not shown) may be filled in the anti-condensation part 100. In this case, the opening part 101 is formed to allow the outside air to flow into the inside of the anti-condensation part 100 This will be self-evident.

6 to Fig. 6, in order to fundamentally block the condensation and sticking phenomenon of the stem 40 by gradually circulating the internal and external air through the inflow of the external air or the internal air of the anti-condensation unit 100, There is further provided a structure to be combined with the anti-condensation part 100 as shown in Fig.

6, a socket unit 200 provided at a lower portion of the anti-condensation unit 100, a casing 300 provided at a lower portion of the socket unit 200, And a heat transfer member (400).

As shown in FIGS. 7 and 8A, the socket unit 200 is cylindrical in shape, and has a ring-shaped step unit 210 at the center of the outer circumference. The upper part 210, And a third through hole 231 is formed in the center of the blocking plate 230. The third through hole 231 is formed in the center of the blocking plate 230. The third through hole 231 is formed in the center of the blocking plate 230, And a plurality of first through holes 232 spaced from the entire periphery of the third through hole 231 are formed.

The outer peripheral surface of the lower coupling part 220b of the socket part 200 is engaged with the lower inner peripheral surface of the condensation preventing part 100 through a thread formed on the outer peripheral surface of the upper coupling part 220a of the socket part 200, And the socket unit 200 is installed between the anti-condensation unit 100 and the casing 300 and is fixedly coupled with the upper inner circumferential surface of the casing 300.

A third through hole 231 is formed in the center of the shield plate 230 so that the stem 40 passes through the center of the socket plate 200 while the shield plate 230 is formed at the center of the socket portion 200, 231, a first through hole 232 is formed to allow the air inside the casing 300 and the air inside the condensation preventing portion 100 to flow in or out.

6 and 7, the casing 300 is positioned between the socket unit 200 and the valve body 20, and the upper portion of the casing unit 300 is coupled to the lower coupling unit 220b of the socket unit 200, And the lower portion is coupled to the valve body 20 to form an internal space portion 301 therein.

7 and 8 (b), the heat transfer member 400 flows through the opening 101 of the condensation preventing portion 100 and flows through the opening 101 of the condensation preventing portion 100, As the heat transfer medium for transferring the ultra low temperature fluid atmosphere transferred to the flow path 21 of the valve body 20 while conveying the atmosphere of the outside air through the through holes 232, The atmosphere of the ultra-low temperature is converted into the atmosphere close to the room temperature, and the condensation and the fixing phenomenon of the stem 40 are prevented by the effect of the warming.

The heat transfer member 400 includes a first heat transfer portion 410 having a cylindrical shape and a fourth through hole 411 formed at the center of the heat transfer member 400 to allow the stem 40 to pass therethrough while being accommodated in the space portion 301 of the casing 300, A vertical first connection pin 420 connected to an outer circumferential surface of the first heat transfer part 410 and connected to the inner circumferential surface of the first connection pin 420, And a plurality of vertical second connection pins 440 radially protruding from the outer circumferential surface of the second heat transfer portion 430. The heat transfer member 400 includes a first heat transfer member 430 and a second heat transfer member 430, Temperature valve (10).

That is, the cryogenic atmosphere of the fluid passing through the stem 40 is transferred to the first connection pin 420, and the second heat transfer part 430, which surrounds the first connection pin 420, Temperature atmosphere flowing through the first through-hole 232 of the blocking plate 230 of the socket unit 200 through the opening 101 of the anti-condensation unit 100, The room temperature atmosphere transferred through the wall surface is transferred to the second connection pin 440 which contacts the inner circumferential surface of the casing 300 to induce the low temperature atmosphere of the second heat transfer portion 430 to be converted into the room temperature atmosphere.

A plurality of second through holes 431 penetrating the second heat transfer part 430 may be formed on one surface of the second heat transfer part 430 exposed between the second connection pin 440 and the second connection pin 440, The air flowing through the opening 101 of the casing 300 or the air inside the second heat transfer portion 430 is discharged so that the low temperature atmosphere inside the casing 300 is converted into the room temperature atmosphere through the air circulation .

9 and 10, a fifth through hole 511 is provided in the inner surface of the anti-condensation part 100 so as to be radially protruded from the inner circumferential surface thereof, A cylindrical third heat transfer part 500 in which a plurality of vertical third connection pins 510 having a predetermined length are formed,

A cylindrical first body 610 having a receiving hole 611 formed therein to allow the third heat transfer part 500 to extend therethrough and a plurality of spaced apart fourth connections 610 radially protruding from the outer surface of the first body 610, And a fourth heat transfer part 600 composed of a cylindrical second body 630 which surrounds the plurality of fourth connection pins 620 while the ends of the fin 620 and the fourth connection pin 620 are connected to the inner peripheral surface, Temperature valve (10).

As shown in FIGS. 9 and 10A, the third heat transfer part 500 has the third connection pin 510 protruding radially from the inner circumferential surface of the cylindrical shape, A fifth through hole 511 is formed in the center of the plurality of third connection pins 510 protruded from the third connection pin 510 so as to allow the stem 40 to pass therethrough and between the third connection pin 510 and the third connection pin 510 A plurality of third through holes 512 are formed on one surface of the exposed third heat transfer part 500 so that the air inside and outside the third heat transfer part 500 can be freely introduced and exhausted.

9 and 10B, the fourth heat transfer part 600 includes a first body 610, an outer second body 630, and an outer circumferential surface 640 of the first body 610, And a plurality of vertical plate-shaped fourth connection pins 620 protruding in the circumferential direction of the outer circumferential surface of the first body 610 so as to connect the inner circumferential surfaces of the second body 630 with each other.

The third heat transfer part 500 is inserted into the receiving hole 611 inside the first body 610 and the outer peripheral surface of the third heat transfer part 500 is inserted into the inner peripheral surface of the receiving hole 611 of the first body 610 It is formed in a tight or excited state.

The first body 610 and the second body 630 of the fourth heat transfer part 600 exposed between the fourth connection pin 620 and the fourth connection pin 620 are inserted into the first body 610 and the second body 630, A plurality of fourth through holes 601 are formed to allow air in and out of the fourth heat transfer portion 600 to flow in and out.

A low temperature atmosphere in which the ultra low temperature fluid moving to the flow path 21 of the valve body 20 is transmitted through the stem 40 and a room temperature atmosphere flowing through the opening portion 101 of the condensation preventing portion 100 The third heat transfer part 500 is connected to the stem 40 through the stem 40 so that the internal temperature gradient of the condensation prevention part 100 can be gradually changed to the atmosphere at room temperature while preventing the abnormal high pressure due to the rapid temperature difference, The fourth heat transfer part 600 serves to induce an atmosphere at a room temperature introduced into the condensation prevention part 100. The third heat transfer part 500 and the fourth heat transfer part The portion 600 gradually induces the atmosphere inside the condensation preventing portion 100 to the room temperature or the anti-condensation atmosphere.

In order to stably induce a change in the heat transmitted inside the condensation preventing part 100 or while preventing the temperature change inside the socket part 200 and the casing 300 from changing drastically, The third connection pin 510 of the third heat transfer part 500 and the fourth connection pin 620 of the fourth heat transfer part 600 have the following structure I have.

As shown in FIG. 11, one of the first connection pin 420, the second connection pin 440, the third connection pin 510, and the fourth connection pin 620 may be provided with, for example, In the case of the connecting pin 440, the inner end of the connecting pin 440 is penetrated, and the outer end of the connecting pin 440 is interrupted, so that the central core portion C having a space therein is integrally connected to both sides of the core portion C, Stage valve (10) which is composed of a surface portion (F) which is opened and has an internal space.

That is, the second connection pin 440 is connected at one end to the outer circumferential surface of the second heat transfer part 430, but the second connection pin 440 in a state of being separated from the second heat transfer part 430, And has the same structure of the portion (C) and the surface portion (F).

The surface portion F provided on both sides of the core portion C is moved through the opening portion 101 of the condensation preventing portion 100 while the ultra low temperature atmosphere transferred through the stem 40 is moved The ambient temperature atmosphere is transferred so that the ultra-low temperature atmosphere inside the core portion C is effectively heated by the room temperature atmosphere inside the both side surface portions F of the core portion C to prevent the inside of the anti-condensation portion 100 or the casing 300 Thereby preventing condensation and sticking of the stem 40 through internal temperature changes.

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 inventions. Will be clear to those who have knowledge of.

Cryogenic valve 10 Valve body 20 Bonnet 30
Flange 31 Guide hole 32 Packing hole 33
Stem 40 Handle 50 Pressurizing means 60
Pushing part 61 Support part 62 Packing 65
Support means 70 clearance support plate 71 anti-condensation section 100
Opening portion 101 socket portion 200step portion 210
Upper fastening portion 220a lower fastening portion 220b shutoff plate 230
Third through hole 231 First through hole 232 casing 300
Space portion 301 heat transfer member 400 first heat transfer portion 410
Fourth through hole 411 first connection pin 420 second heat transfer part 430
Second through hole 431 Second connection pin 440 Third heat transfer part 500
Third connection pin 510 Fifth through hole 511 Third through hole 512
Fourth heat transfer part 600 first body 610 receiving hole 611
Fourth connecting pin 620 Second body 630

Claims (4)

A stem is formed in the inside of the valve body and the bonnet to have a disk for opening and closing the flow passage, A cryogenic valve having a structure that is connected to an upper end of a vertically elongated stem to form a handle for rotating the stem,
A packing hole accommodated in the packing hole is formed so as to have a larger inner diameter than an inner diameter through which the stem passes in a predetermined length from an upper center of the bonnet to an upper end of the bonnet, And a pressurizing unit including a lower pressurizing unit and an upper support unit which are pressed into the packing hole while pressing the upper part of the packing, and a first through hole penetrating the upper part of the pressurizing unit and passing through the upper part of the pressurizing unit, A first fastening hole formed on both sides of the upper portion of the support portion, and fastening means coupled to the flange of the bonnet,
A horizontal plate-like clearance support plate positioned between the flange of the bonnet and the handle to form a second through-hole at the center of the stem so as to extend the stem, A supporting means for engaging with the flange of the bonnet as the fastening means is provided,
A hemispherical type anti-condensation unit connected to the lower end of the bonnet and having a plurality of openings penetrating the inside of the upper outer circumferential surface is formed in a columnar shape,
A fastening part having a threaded portion formed on an upper outer circumferential surface and a lower outer circumferential surface with respect to a stepped portion protruding in a circumferential direction at the center of the outer circumferential surface and a plurality of first through holes passing through the upper surface, And a shield plate having a third through hole formed therein to allow the stem to pass therethrough,
And a casing which is located between the socket portion and the valve body and has an upper portion coupled to a lower coupling portion of the socket portion and a lower portion coupled to the valve body to form an internal space portion,
A first heat transfer part having a cylindrical through-hole formed in a space of the casing to allow the stem to pass through the center, a vertical first connection pin connected to an outer circumferential surface of the first heat transfer part and projecting in four directions, A heat transfer member composed of a cylindrical second heat transfer portion which surrounds the first connection pin in each of the four directions while being connected to the inner circumferential surface of the connection pin end portion and a plurality of vertical second connection pins radially protruded from the outer circumferential surface of the second heat transfer portion, Wherein the cryogenic valve comprises: delete [6] The apparatus of claim 1, further comprising, in place of the socket, the casing, and the heat transfer member,
And a plurality of third vertical connection pins having a predetermined length so as to be radially protruded from the inner surface of the anti-condensation unit, A heat transfer portion,
A plurality of fourth connecting pins spaced apart radially from the outer circumferential surface of the first body and having a receiving hole formed in the third heat transfer portion, And a fourth heat transfer part composed of a cylindrical second body surrounding the plurality of fourth connection pins. [2] The apparatus as claimed in claim 1, wherein the second connection pin has a central core part having an inner space and an inner end integrally connected to both sides of the core part, Wherein the cryogenic valve comprises a surface portion which is open and has a space therein.

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