WO2019135435A1

WO2019135435A1 - Insulation apparatus for valve unit

Info

Publication number: WO2019135435A1
Application number: PCT/KR2018/000688
Authority: WO
Inventors: 김상기
Original assignee: (주)동인엔지니어링
Priority date: 2018-01-05
Filing date: 2018-01-15
Publication date: 2019-07-11
Also published as: KR101890284B1

Abstract

The insulation apparatus for a valve unit according to the present invention comprises: a first divided body which is provided with a first plate having a curved surface, which corresponds to the lower curved surface of a valve unit, first finishing chassis coupled respectively to the two widthwise ends of the first plate, and second plates coupled respectively to the two lengthwise ends of the first plate; a second divided body which is provided with a third plate having a shape corresponding to one side surface of the top part of the valve unit, second finishing chassis coupled respectively to the two widthwise ends of the third plate, and fourth plates coupled respectively to the two lengthwise ends of the third plate; and a third divided body provided with a fifth plate having a shape corresponding to the other side surface of the top part of the valve unit, a second finishing chassis coupled to the first widthwise end, coming into contact with the first divided body, of the fifth plate, a first finishing chassis coupled to the second widthwise end, coming into contact with the second divided body, of the fifth plate, and sixth plates coupled respectively to the two lengthwise ends of the fifth plate.

Description

Insulator for valve unit

More particularly, the present invention relates to a heat insulating device for a valve unit, which is simple in manufacturing process, excellent in rigidity and assembly precision, and easy to install even in a narrow space.

Generally, various kinds of piping facilities are installed in buildings such as office buildings, industrial buildings and apartments, and these piping facilities are installed with insulation covers for the purpose of maintaining the insulation and cooling or additionally extending the life of the piping facilities and designing the exterior These insulating covers are mainly used in valves, T-tubes, elbows, and straight pipes in piping systems.

In particular, power plants (nuclear power plants, thermal power plants, etc.) and petrochemical plants produce high-temperature, high-pressure steam produced by the boiler to provide rotational power to the turbine and ultimately produce electrical energy. Since the piping thickness is reduced due to fluid friction and cavitation in the piping during transport, there is a risk of causing safety accidents in the system during normal operation. During the maintenance, the integrity of the piping is checked by checking the condition of the piping being depressed (the wall of the piping is thinned due to causes such as corrosion).

Because of this phenomenon of pipe thinning, pinholes can be generated on the piping side over time and lead to serious accidents. Therefore, the pipe shall be subjected to thinning inspection once a year through planned preventive maintenance, and recorded and reported have.

In case of using the existing insulation material when performing such a thinning inspection, the protective cover (or the finishing cover) of the metallic material finished on the outside of the pipe and the insulation material are sequentially removed and then the thinning inspection is carried out. After such thinning inspection, a new insulation is attached and closed with a protective cover.

The thermal insulation method after the thinning test causes the waste of the material due to the disposal amount of the thermal insulation material and the protective cover which are dismantled every year and causes the thermal stress to increase due to occurrence of the thermal notch in the case of erroneous construction So that the thinning phenomenon can be remarkably progressed on the part, which shortens the lifetime of the entire piping.

As a method for overcoming such a problem, Korean Patent Registration No. 10-1184392 (2012.09.13.) Has been proposed. In Korean Patent Registration No. 10-1184392 (Sep. 13, 2012), there is provided an insulation unit for piping, which comprises an insulation unit for an elbow, a insulation unit for a T-joint, an insulation unit for an insulation pipe, and a insulation unit for a flange, (Or protective cover) made of a metal material, and the disclosed heat insulating material protective cover has a structure in which the plate is simply curved so as to have a curved surface So as to wrap the pipe, and then assembled with a clamp or the like.

However, since the protective cover of this structure is weak in rigidity, it is easily bent, and there is a high possibility that a thermal insulation gap is generated in the assembled portion, and there is a problem that the penetration of moisture into the assembled portion is easy, There is a problem that accuracy is degraded. In addition, the conventional heat insulation device as described above is advantageous in terms of ease of installation and heat insulation. However, since the outer cover is made of metal, it is difficult to install the insulation when the space between the pipe and the wall is narrow. Further, since the conventional heat insulating device is a device for insulating the piping, there is a disadvantage in that it is not suitable for inserting the valve unit.

An object of the present invention is to provide an insulation device for a valve unit which can simplify the manufacturing process and improve the bonding precision.

Another object of the present invention is to provide a heat insulating device for a valve unit which can improve the rigidity of a protective cover, increase the bonding strength of the bonding portion, improve the heat insulating performance and reduce damage due to moisture infiltration or the like.

Still another object of the present invention is to provide a heat insulating device for a valve unit which can be easily installed even if the space around the pipe is narrow.

According to an aspect of the present invention, there is provided an adiabatic device for a valve unit including a valve body connected between at least two pipes, a shaft projecting from an upper portion of the valve body, And a valve body having a curved surface corresponding to a lower curved surface of the valve body, the valve unit having a curved surface corresponding to the lower curved surface of the valve unit or the valve body, A first finishing chassis which is coupled to both ends of the first plate in the width direction and a second finishing chassis which is perpendicular to the first plate at both ends in the longitudinal direction of the first plate, A first partition having a second plate; A third plate having a shape corresponding to an upper side of the valve unit or the valve body and having a length corresponding to the length of the valve unit and a second finishing chassis coupled to both ends of the third plate in the width direction, And a fourth plate vertically coupled to both ends of the third plate in the longitudinal direction of the third plate. A fifth plate having a shape corresponding to the upper surface of the valve unit or the valve body and having a length corresponding to the length of the valve unit, A first finishing chassis coupled to a second end in a width direction in contact with the second divided body at the fifth plate; a second finishing chassis coupled to the fifth finishing chassis at both ends in the longitudinal direction of the fifth plate; A third partition having a sixth plate vertically coupled to the plate; And at least one of the first plate, the third plate, and the fifth plate is configured to have a soft seat structure.

At least one of the first plate, the third plate and the fifth plate is composed of a soft silver fabric and a metal net surrounding the outer surface of the soft fabric.

The plates of the first plate, the third plate, and the fifth plate, which are formed of the silver foil and the metal net, are folded so that the portions to be inserted into the connection chassis, the first finishing chassis, And a reinforcing plate is inserted into the folded portion.

An outer tube extending from an inner side surface of the first plate, the third plate, and the fifth plate toward the valve unit; and a second tube having one end in the longitudinal direction inserted into the outer tube, And a coil spring shape which surrounds the outer circumferential surface of the outer tube and the inner tube, and one end in the longitudinal direction of the outer tube and the inner tube is connected to the inner surface of one of the first plate and the third plate and the fifth plate And an elastic body in which the other end in the longitudinal direction is seated on the valve unit.

And a reinforcement plate provided on an inner surface of a plate to which the outer tube of the first plate, the third plate, and the fifth plate is coupled.

The first finishing chassis comprises a first engaging portion having a "C" -shape cross-sectional shape and having a first insertion groove into which an end portion of the first plate or the fifth plate is inserted for press- And the second finishing chassis is formed with a first finishing chassis having an end portion of the third plate or the fifth plate inserted into the first finishing chassis and press- A second engaging portion having a " C "cross-sectional shape having a first engaging groove and a second engaging groove; an extension portion extending from an end portion of the second engaging portion in a direction opposite to the second engaging portion; And a second supporting portion extending in a direction of the first coupling portion and perpendicular to the second coupling portion and the extending portion, and has a generally T-shaped cross-sectional shape.

The thermal insulation device for a valve unit according to the present invention is characterized in that the first engagement portion of the first finishing chassis and the extension portion of the second finishing chassis overlap and the first finishing portion of the first finishing chassis and the second finishing chassis 2 supporting portions are brought into contact with each other so as to assemble two adjacent divided bodies.

The first insertion groove and the second insertion groove may each have a serrated first projection formed on an inner surface thereof and a second projection formed in a serrated shape intersecting the first projection on the other surface.

The first divided body may have a semicircular shape, and the second divided body and the third divided body may have an "a" shape.

A semicircular groove for passing the shaft may be formed in each of a central portion where the third plate contacts the third divided body and a central portion where the fifth plate contacts the second divided body.

Wherein the first plate and the second plate, the third plate and the fourth plate, and the fifth plate and the sixth plate are coupled to each other through a connection chassis, A first protrusion is formed on one side of the inner side of each of the third insertion groove and the fourth insertion groove and a second protrusion is formed on the other inner side surface of the first insertion groove, Wherein one end of the first plate, the third plate, or the fifth plate is inserted into the third insertion groove, and the second plate, the second plate, The fourth plate or the sixth plate may have a structure in which one end of the fourth plate or the sixth plate is inserted into the fourth insertion groove by being compressed by pressing the connection chassis.

The connection chassis may have a shape in which the middle portion is bent in an "a" shape so that the first end portion and the second end portion are at an angle to each other.

The first plate to the sixth plate, the first finishing chassis, the second finishing chassis, and the connection chassis may each have a soft metal material.

The first divided body, the second divided body, and the third divided body may be assembled using at least one clamp or at least one hinge.

And a heat insulating material embedded in the first divided body, the second divided body and the third divided body, respectively.

A protective sheet that covers a portion of the surface of the heat insulating material that is not covered by the first divided body, the second divided body, or the third divided body, and is folded so that both sides in the width direction overlap each other; A plurality of fastening rivets fastened to the first finishing chassis or the second finishing chassis so as to penetrate through one side of the protective sheet in the widthwise direction, A fixing wire inserted into a folded portion of both sides in the width direction of the protective sheet; And a fastening washer on which the head of the fastening rivet is seated.

The insulation device for a valve unit according to the present invention is advantageous in that it is easy to install even when the space around the valve unit is narrow and the coupling accuracy is excellent.

Further, the insulating device for a valve unit according to the present invention is advantageous in that the assembly process is simple, the structural rigidity and the bonding strength are excellent, the heat insulating performance is excellent, and the possibility of damage due to moisture infiltration is small.

1 is a perspective view of a valve unit used for general piping,

2 is an exploded perspective view of a heat insulating device for a valve unit according to an embodiment of the present invention,

Figure 3 is an exploded perspective view of the first compartment of Figure 2,

Fig. 4 is an exploded perspective view of the second divided body of Fig. 2,

Fig. 5 is an exploded perspective view of the third part of Fig. 2,

Figure 6 is a perspective view of the first and second finished chassis of Figure 2,

7 is a view showing a process of joining the first divided body or the third divided body with the first finished chassis,

8 is a view for explaining a process of joining the second divided body or the third divided body with the second finished chassis,

9 is a view showing an assembling part of the first divided body, the second divided body and the third divided body,

Figure 10 is a perspective view of the connection chassis of Figure 2,

11 is a view for explaining a process of combining the divided bodies and the connecting chassis,

12 is a view showing a process in which the first divided body is combined with the heat insulating material to constitute the first heat insulating unit,

13 is a view showing a process in which the second divided body is combined with the heat insulating material to constitute the second heat insulating unit,

FIG. 14 is a view showing a process of forming the third heat insulating unit by the third divided body combined with the heat insulating material,

Fig. 15 shows a state in which the first heat insulating unit, the second heat insulating unit and the third heat insulating unit are assembled by using a clamp,

16 shows a state in which the first heat insulating unit, the second heat insulating unit and the third heat insulating unit are assembled to the valve unit.

17 is a longitudinal sectional view of the first divided body.

18 is an exploded perspective view of a second embodiment of a heat insulating device for a valve unit according to the present invention.

19 is an enlarged cross-sectional view showing a coupling structure of the finishing cover.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings without intending to intend to provide a thorough understanding of the present invention to a person having ordinary skill in the art to which the present invention belongs.

1 is a perspective view of a valve unit used in general piping.

1, a piping valve unit 50 is connected to a plurality of (or at least two) pipes 10 to be coupled to each other through a flange connection to open and close the piping, A valve flange 54 provided at both ends of the valve body 52 to be engaged with the pipe flange 12 and a shaft protruding from the upper portion of the valve body 520 and connected to the valve And a wheel 58 that is coupled to the upper end of the shaft 56 and opens and closes the valve by rotating.

FIG. 2 is an exploded perspective view of a heat insulating apparatus for a valve unit according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of the first divided body 100 of FIG. 1, 200, and Fig. 5 is an exploded perspective view of the third divided body of Fig.

Hereinafter, the longitudinal direction means the same direction as the longitudinal direction of the pipe or valve unit, and the width direction means the circumferential direction of the pipe or the same direction as the width direction of the pipe.

2 to 5, a thermal insulation device for a valve unit according to an embodiment of the present invention includes a first divided body 100, a second divided body 200, and a third divided body 300 assembled . That is, the first divided body 100, the second divided body 200, and the third divided body 300 can be separated into a form enclosing the valve unit 50 corresponding to the curved surface and the plane of the valve unit 50 .

The first divided body 100 has a curved surface corresponding to a lower curved surface of the valve unit 50 (more specifically, a lower curved surface of the valve body 52), and is configured to surround the lower surface of the valve unit 50 And a first finishing chassis 120 coupled to both ends of the first plate 110 in the width direction. In addition, the first divided body 100 may include a second plate 150, which is coupled to both ends of the first plate 110 in the longitudinal direction thereof to be perpendicular to the first plate 110 and facing each other, And a connection chassis 130 for coupling the plate 110 and the second plate 150 to each other.

1, the valve unit 50 has a curved surface similar to that of a general pipe in the lower part (the lower part in the drawing or the lower part opposite to the upper part in which the wheel 58 is provided) . Therefore, the first divided body 100 may be formed to have a semi-circular cross-sectional structure in order to cover the lower portion of the valve unit 50.

The first plate 110 has a length corresponding to the length of the valve unit 50. The first plate 110 may be formed by processing a flat plate with a curved surface through a process such as rolling.

The second plate 150 has a shape in which an inner portion is cut so that the length between the outer circumferential surface and the inner circumferential surface of the semi-circular plate is equal to each other, so that the outer circumferential surface portion is vertically coupled to both longitudinal ends of the first plate 110 Lt; / RTI > For example, the second plate 150 may have the same shape as a remaining portion when a semi-circular plate having a smaller diameter is cut from one semi-circular plate.

The second divided body 200 has a shape and a length corresponding to the upper surface of the upper portion of the valve unit 50 or the valve body 52. The upper surface of the valve unit 50 or the upper surface of the valve body 52 And a second finishing chassis 220 coupled to both ends of the third plate 210. The second finishing chassis 220 includes a first plate 210, The second divided body 200 includes a fourth plate 250, which is coupled to both ends of the third plate 210 in the longitudinal direction thereof to be perpendicular to the third plate 210 and facing each other, And a connection chassis 130 for coupling the plate 210 and the fourth plate 250 to each other.

The third plate 210 has a length corresponding to the valve unit 50. The flat plate may be formed by a rolling process or the like so that the bent portion has a smooth curved surface, have. Accordingly, the second divided body 200 may have an entirely "a" cross-sectional shape.

The fourth plate 250 has a shape in which the inner portion is cut out in the vertical direction width larger than the horizontal direction width in the state that the circular plate is cut in 1/4, And may have a structure in which they are brought into contact with both ends and are vertically coupled. The fourth plate 250 covers the protruding portion so that the connection portion of the valve body 52 and the shaft 56 protrudes from the valve unit 50 so that the fourth plate 250 has a large width in the up-and-down direction.

The third divided body 300 has a shape symmetrical to the second divided body 200 with respect to the valve unit 50. However, different kinds of finishing chassis are connected.

The third divided body 300 has a shape and a length corresponding to the upper side surface of the upper portion of the valve unit 50 or the valve body 52, A second finishing chassis 220 coupled to a first end of the fifth plate 310 in a width direction thereof and a second finishing chassis 220 coupled to the width direction of the fifth plate 310. [ And a first finishing chassis 120 coupled to the two ends. The third divided body 300 includes a sixth plate 350 which is coupled to both ends of the fifth plate 310 in the longitudinal direction thereof to be perpendicular to the fifth plate 310 and faces each other, And a connection chassis 130 for coupling the plate 310 and the sixth plate 350 to each other.

The fifth plate 310 may have a length corresponding to that of the valve unit 50 and may be formed in a "A" cross-sectional structure such that the bent portion is processed to have a smooth curved surface through a process such as rolling . Accordingly, the third divided body 300 may have an entirely "a" cross-sectional shape.

The sixth plate 350 has a shape in which the inner portion is cut out in the vertical direction width larger than the horizontal direction width in the state that the original plate is cut in 1/4, And may have a structure in which they are brought into contact with both ends and are vertically coupled. The sixth plate 350 covers the protruding portion so that the connecting portion of the valve body 52 and the shaft 56 protrudes from the valve unit 50 so that the width is increased in the vertical direction.

The first finishing chassis 120 may be coupled to the other end of the first plate 110 in the width direction, or the second finishing chassis 220 may be engaged. Also, in the case of the third plate 210 and the fifth plate 310, the second finishing chassis 220 may be coupled to the other end of the width direction, or the first finishing chassis 120 may be coupled thereto . Optionally, as in the case of the fifth plate 310 of the third part 300, the second finishing chassis 220 is coupled to the first end and the first finishing chassis 120 is coupled to the second end It is also possible.

When the first divided body 100, the second divided body 200 and the third divided body 300 are assembled, the first finishing chassis 120 and the second finishing chassis 220 The first finishing chassis 120 is coupled to the first finishing chassis 120 at a first widthwise end portion of the first plate 110 so that the third finishing chassis 120 of the second finishing body 200, The second finishing chassis 220 must be coupled to the width direction end portions of the fifth plate 310 of the first divided body 210 or the third divided body 300. The third plate 210 of the second divided body 200, which is coupled to the second finishing chassis 220 when the second finishing chassis 220 is coupled to the second end of the first plate 110 in the width direction, The first finishing chassis 120 is to be coupled to the width direction ends of the fifth plate 310 of the third divided body 300.

When the heat insulating device for a valve unit is manufactured, each of the

plates

110, 150, 210, 250, 310 and 350 and the first finishing chassis 210 and the

second finishing chassis

220, 130, and the like are all made of metal (for example, aluminum). When all the

plates

110, 150, 210, 250, 310, 350 are made of metal, if the peripheral space of the valve unit 50 is narrow, 200, and 300 may be bent or distorted during installation of the

plates

110, 150, 210, 250, 310, and 350. In particular, there is a problem that the first plate 110, the third plate 210, and the fifth plate 310, which are exposed to the outside, may be easily damaged.

In order to solve the above problems, at least one plate of the first plate 110, the third plate 210, and the fifth plate 310 is externally applied with a force And is made of a sheet structure having ductility so that it can be easily deformed when it is lost.

For example, when the lower space of the valve unit 30 is difficult to be secured due to reasons such as the passage of another pipe to the lower side of the valve unit 50, the first plate 110 is formed into a flexible seat structure . Thus, if the first plate 110 is made of a flexible sheet, even if the pipe or duct passes under the valve unit 50 or the valve unit 50 and the building wall are disposed adjacent to each other, It is possible to mount the valve body 110 on the valve unit 50 while bending or bending the valve body 110. That is, the heat insulating device for a valve unit according to the present invention has an advantage that it can be installed very easily even if the space around the valve unit 50 is narrow, and is convenient to use.

Meanwhile, the first plate 110 may be applied as a soft silver foil 111 so as to have a heat reflecting function. When the silver foil 111 is directly exposed to the outside, the first plate 110 may be easily torn or damaged. Accordingly, the first plate 110 preferably includes a metal net 112 that is installed to cover the outer surface of the silver foil 111 and protects the silver foil 111. At this time, the material and the net pattern of the metal net 112 may be variously changed according to the designer's choice.

The third plate 210 and the fifth plate 310 are formed of the silver foil 111 and the metal plate 112. In this embodiment, And a metal net 112. [0033] In addition, two plates of the first plate 110, the third plate 210 and the fifth plate 310 may be formed of the silver foil 111 and the

metal net

112, 110, the third plate 210, and the fifth plate 310 may be formed of the silver foil 111 and the metal net 112.

The first finishing chassis 120 and the second finishing chassis 220 are disposed at both ends in the width direction of the second plate 150 coupled to the first plate 110, And the width direction opposite ends of the sixth plate 350 coupled to the fifth plate 310. In addition,

At this time, the finishing chassis coupled to the adjacent plates will have to be combined. For example, when the first finishing chassis 120 is coupled to the first plate 110, the first finishing chassis 120 may be coupled to the widthwise ends of the second plate 150. In this case, the first finishing chassis 120 or the second finishing chassis 120 having an integral structure in which a part of the first plate 110 and the second plate 150 are vertically bent so as to be integrally joined together at the widthwise ends thereof 220 may be provided and coupled.

Although not shown, the first plate 110, the third plate 210, and the fifth plate 310 have a length from one end in the width direction to the other end in the width direction for reinforcing the rigidity, Quot; C "or " C " cross-sectional shape that is formed by being bent and protruded in the longitudinal direction. The bending protrusions may be provided at a plurality of spaced intervals, if necessary, for stiffening reinforcement.

The bending protrusion has a predetermined width and is formed to be long along the width direction of the plate. The bending protrusion has a concave shape in an inner direction of the plate and a convex shape in a convex shape in an outer direction.

Here, a central portion where the third plate 210 of the second divided body 200 is in contact with the third divided body 300 and a central portion where the fifth plate of the third divided body 300 is in contact with the third divided body 300, A semicircular groove or hole (hereinafter, referred to as a "groove") 260, 360 for passing the shaft 56 is formed in each central portion in contact with the two-piece body 200, The first finishing chassis 120 or the second finishing chassis 220 is not coupled to the first finishing chassis 120. [

Hereinafter, the first finishing chassis 120 is coupled to the first finishing body 100, only the second finishing chassis 220 is coupled to the second finishing body 200, A case where the first finishing chassis 120 and the second finishing chassis 220 are coupled to each other will be described.

However, this is merely an example, and the first finishing chassis 120 and the second finishing chassis 220 may be coupled to the first to

sixth plates

110, 150, 210, 250, 310, and 350, respectively, as needed.

Although the finishing

chassis

120 and 220 are coupled to the first plate 110, the third plate 210 and the fifth plate 310, the finishing

chassis

120 and 220 may be coupled to the second plate 150, The fourth plate 250, and the sixth plate 350, as shown in FIG.

The detailed structure of the first finishing chassis 120 and the second finishing chassis 220 and the method of joining them through the first finishing chassis 120 and the second finishing chassis 220 will be described with reference to FIGS.

Fig. 6 is a perspective view of the first finishing chassis and the second finishing chassis of Fig. 2, Fig. 7 is a view showing a process of combining the first finishing body or the third finishing body with the first finishing chassis, And FIG. 9 is a view showing an assembly part of the first divided body, the second divided body, and the third divided body .

6 (a) shows the first finishing chassis 120, and FIG. 6 (b) shows the second finishing chassis 220. FIG.

The first finishing chassis 120 and the second finishing chassis 220 may have a length corresponding to the plate to be coupled and may have a shape corresponding to the shape of each end of the plate. Further, when the two plates are coupled to each other, it is also possible to combine them using an integrated finishing chassis.

As shown in FIG. 6 (a), the first finishing chassis 120 has a first engaging portion 122 and a first supporting portion 124 so as to have a generally "A" cross-sectional shape.

The first engaging portion 122 has a substantially U-shaped cross-sectional shape having a first insertion groove 123 for inserting a widthwise edge portion (or an end portion) of the first plate 110 or the fifth plate 310, Respectively. The first coupling portion 122 has an upper surface 122a and a lower surface 122b and the first insertion groove 123 as a lateral insertion groove is formed between the upper surface 122a and the lower surface 122b .

A first protrusion 123c having a serrated shape is formed on an inner surface (or an inner lower surface) 123a of the first insertion groove 123 and a second protrusion 123c is formed on an inner surface (or an inner upper surface) Like second projections 123d are formed in an intersecting manner with the second projections 123c. The first protrusions 123c and the second protrusions 123d may be formed in plurality.

The first protrusion 123c and the second protrusion 123d are formed so as not to face each other. The second protrusion 123d is not formed on the inner surface 123b directly facing the first protrusion 123c and the second protrusion 123d is formed on the adjacent portion so that the first protrusion 123d 123c and the second projection 123d may have a structure in which they engage with each other.

The first support portion 124 is bent and extended in the vertical direction at the end of the first engagement portion 122. The first support part 124 may be provided to reinforce the side of the heat insulating material (not shown) provided inside the protective cover.

6B, the second finishing chassis 220 includes a second engaging portion 222, a second supporting portion 224, and an extension portion 226 to form a generally "T" Shape.

The second engaging portion 222 has a second insertion groove 223 for inserting a widthwise edge portion (or width direction end portion) of the third plate 210 or the fifth plate 310, Quot; cross-sectional shape. The second engaging portion 222 has an upper surface 222a and a lower surface 222b and the second insertion groove 223 as a lateral insertion groove is formed between the upper surface 222a and the lower surface 222b .

A sawtooth first protrusion 223c is formed on the inner surface (or the inner lower surface) 223a of the second insertion groove 23, and the first protrusion 223c is formed on the inner surface (or the inner upper surface) Shaped second projections 223d in an intersecting manner with the second projections 223c. The first protrusions 223c and the second protrusions 223d may be formed in plurality.

The first protrusion 223c and the second protrusion 223d are formed so as not to face each other. The second protrusion 223d is not formed on the inner surface 223b directly opposite to the first protrusion 223c and the second protrusion 223d is formed on the adjacent portion so that the first protrusion 223d 223c and the second protrusion 223d may have a structure in which they are engaged with each other.

The second support portion 224 is bent and extended in the vertical direction at an end portion of the second engagement portion 222. The second support portion 224 may be provided for reinforcing the side surface of the heat insulating material (not shown) provided inside the protective cover and for solidifying the assembly.

The extension 226 extends at an end of the second engagement part 222 in a direction opposite to the second engagement part 222.

Accordingly, the second engaging portion 222 and the extending portion 226 are perpendicular to each other, and the extending portion 226 and the second supporting portion 224 are also perpendicular to each other to have a generally T-shaped cross-sectional shape . For example, when the end of the second engaging part 222 is a reference point, the second engaging part 222 is extended from the reference point to the right, and the extending part 226 is extended And the second support portion 224 is extended in a downward direction.

7 (a), when the first finishing chassis 120 is engaged with the first plate 110, the first insertion groove 123 of the first engaging portion 122 7B, the first finishing chassis 120 is press-bonded to the first plate 110 in a state in which the widthwise edge portions (or both widthwise ends) of the first plate 110 are inserted. To be coupled to the first plate (110).

Since the first finishing chassis 120 and the first plate 110 are made of a soft metal material, the first protrusions 123c and the second protrusions 123d are formed in the widthwise ends of the first plate 110, The first plate 110 and the second plate 110 are pressed together with the edge portions of the first plate 110 interposed therebetween. Accordingly, the first finishing chassis 120 is precisely and firmly coupled to an edge portion (width direction end portion) of the first plate 110. This is also the case when the fifth plate 310 and the first finishing chassis 120 are engaged.

Here, the vertex portion of the widthwise edge portion of the first plate 110, which meets the longitudinal edge portion, is a portion to which the connection chassis 130 is coupled, so that the coupling portion of the connection chassis 130 is inserted into the first insertion groove The size of the first insertion groove 123 may be increased so as to be inserted into the connection chassis 130 or the first connection portion 122 of the first finishing chassis 120 may be inserted into the connection chassis 130 The insertion groove of the connection chassis 130 must be sufficiently insertable to be able to be inserted into the connection chassis 130. [

As shown in FIG. 8A, when the second finishing chassis 220 is coupled with the third plate 210, the second insertion groove 223 of the second engaging portion 222 8B, the second finishing chassis 220 is pressed in a state in which the widthwise edge portion (or the width direction end portion) of the third plate 210 is inserted into the second finishing chassis 220 And is coupled to the third plate 210 by the second plate 210.

Since the second finishing chassis 220 and the third plate 210 are made of a soft metal material, the first protrusions 223c and the second protrusions 223d are formed at the edge portions of the third plate 210 And is pressed together with the edge portion of the third plate 210 in an interlocked state. Accordingly, the second finishing chassis 220 is precisely and firmly coupled to the edge of the third plate 210. This is also the case when the fifth plate 310 and the second finishing chassis 220 are coupled.

Since the vertex portion of the widthwise edge portion of the third plate 210 that meets the longitudinal edge portion is a portion to which the connection chassis 130 is coupled, the connection chassis 130 portion is inserted into the second insertion groove 223 The second engaging portion 222 of the second finishing chassis 220 may be inserted into the connecting chassis 130 so as to be inserted into the connecting chassis 130, The insertion groove of the connection chassis 130 must be sufficiently inserted.

As described above, the first divided body 100 includes the first plate 110 and the first finishing chassis 120, so that both the widthwise edge portions of the first plate 110 And the first finishing chassis 120 is joined to the first finishing chassis 120. [ The second divided body 200 is provided with the third plate 210 and the second finishing chassis 220 so that the second divided body 200 is divided into two parts in the width direction 2 finish chassis 220 are coupled to each other. The third partition 300 includes a fifth plate 310 and a first finishing chassis 120 and a second finishing chassis 220. The third finishing chassis 300 has a second finishing chassis And the first finishing chassis 120 is coupled to the other end in the width direction (second end).

When the first divided body 100, the second divided body 200, and the third divided body 300 are assembled, the assembled portion is divided into the first finishing chassis 120 and the second finishing chassis 220 are assembled while being in contact with each other.

9, when the first divided body 100, the second divided body 200, and the third divided body 300 are to be assembled, The first engaging portion 122 of the first finishing chassis 120 and the extending portion 226 of the second finishing chassis 220 are overlapped. The upper surface 122a of the first engagement portion 122 of the first finishing chassis 120 overlaps the lower surface of the extension portion 226 of the second finishing chassis 220, The outer surface of the first support portion 124 of the chassis 120 is brought into contact with the outer surface of the second support portion 224 of the second finishing chassis 220. Since the assembly clearance of the divided

bodies

100, 200, 300 (the contact clearance between the first support portion 124 and the second support portion 224) is covered by the extension portion 226 of the second finishing chassis 220, It is possible to prevent foreign matter such as moisture from penetrating into the gap.

A detailed configuration of the connection chassis 130 and a coupling method therefor will be described with reference to FIGS. 10 to 11. FIG.

FIG. 10 is a perspective view of the connection chassis, and FIG. 11 is a view illustrating a connection process of the divided

components

100, 200, and 300 with the connection chassis.

As shown in FIG. 10, the connection chassis 130 includes a third coupling portion 132, which is a first end portion, and a fourth coupling portion 134, which is a second end portion. The intermediate portion is curved so as to have a cross-sectional shape of "a" as a whole.

The third engaging portion 132 may include a third inserting groove for inserting longitudinal edge portions (or both longitudinal end portions) of the first plate 110, the third plate 210 or the fifth plate 310 Quot; C " The internal structure of the third insertion groove 133a is the same as or similar to the structure of the first insertion groove 123 of the first finishing chassis 120.

The fourth engaging portion 134 has a fourth insertion groove 133b for inserting the outer peripheral surface portions (one end portions) of the second plate 150, the fourth plate 250 or the sixth plate 350 Quot; C "cross-sectional shape. The protrusion formed inside the fourth insertion groove 133b is the same as or similar to the first insertion groove 123 of the first finishing chassis 120. Further, the inner surface of the two surfaces constituting the fourth insertion groove 133b may be formed to be shorter than the outer surface.

The depth and shape of the fourth insertion groove 133b can be variously changed according to the type and shape of the plate to be coupled.

11 (a), when the connection chassis 130 is coupled with the first plate 110, the third plate 210, or the fifth plate 310, The longitudinal edge portions (or both longitudinal end portions) of the first plate 110, the third plate 210, or the fifth plate 310 are inserted into the third insertion groove 133a of the coupling portion 132, . And the second plate 150 is coupled to the fourth plate 250 or the sixth plate 350 so that the fourth insertion groove 133b of the fourth engagement portion 134 is engaged with the second plate 150, (Or both ends in the longitudinal direction) or the outer peripheral portion of the second plate 150, the fourth plate 250, or the sixth plate 350 are inserted.

In this state, as shown in FIG. 11 (b), by pressing the connection chassis 130, the first plate 110 and the second plate 150, the third plate 210 and the fourth plate 250, and the fifth plate 310 and the sixth plate 350 are vertically coupled to each other.

At this time, since the connection chassis 130 is made of a soft metal, the plates are inserted into the third insertion groove 133a and the fourth insertion groove 133b so as to be engaged with each other. Accordingly, the first plate 110 and the second plate 150, the third plate 210 and the fourth plate 250, the fifth plate 310 and the sixth plate 350 are precisely and rigidly coupled .

At this time, since the vertex portions of the respective plates are coupled with the first finishing chassis 120 or the second finishing chassis 220, the engagement portions of the finishing

chassis

120 and 220 are inserted into the third insertion groove 133a or the fourth insertion groove 133b The third insertion groove 133a or the fourth insertion groove 133b may be formed to be larger than a predetermined size so that the first insertion groove 133a and the fourth insertion groove 133b can be compressed and coupled together.

As described above, the first divided body 100 includes the first plate 110, the second plate 150, the connecting chassis 130, and the first finishing chassis 120 to have a predetermined shape And the second divided body 200 is provided with the third plate 210, the fourth plate 250, the connecting chassis 130 and the second finishing chassis 220 so as to have a predetermined shape And the third divided body 300 includes a fifth plate 310, a sixth plate 350, a connecting chassis 130, a first finishing chassis 120, and a second finishing chassis 220 , And has a predetermined shape.

The protective cover having the above-described structure is formed by assembling the first divided body 100, the second divided body 200 and the third divided body 300, A first heat insulating unit having a heat insulating material inside the one-piece body 100 and a second heat insulating unit having a heat insulating material inside the second divided body 200; And a third heat insulating unit provided with a heat insulating material so as to constitute a heat insulating device for a valve unit having a structure for covering the valve unit (50).

12 shows a process of forming the first divided unit 100 with the heat insulating material 180 to form the first heat insulating unit 400a. FIG. 13 shows a state where the second divided unit 200 is separated from the heat insulating material 280 14 shows a process of constructing the second heat insulating unit 400c by joining the third divided body 300 with the heat insulating material 380. FIG. FIG.

As shown in FIGS. 12 to 14, the first divided body 100 may be combined with the heat insulating material 180 to form the first heat insulating unit 400a.

The heat insulating material 180 is disposed on the outer surface of the valve unit 50 and is disposed in the outer radial direction of the inner heat insulating layer (not shown) to contact the inner surface of the first divided body 100 Layer structure having an outer insulating layer (not shown), a middle insulating layer (not shown) interposed between the inner insulating layer and the outer insulating layer, or may have a single-layer structure.

The inner heat insulating layer and the outer heat insulating layer may be made of glass wool, mineral wool or the like. When the fluid passing through the inside of the valve unit 50 is low temperature, it may be made of expanded polyethylene or the like.

The intermediate insulating layer may have a jacket structure having a space filled with air or argon gas therein. Alternatively, the intermediate insulation layer may be formed of a high temperature insulation material such as HITLIN or the like, and the intermediate insulation layer may be formed of a different kind of insulation material as compared with the internal insulation layer and the external insulation layer.

Then, the inner heat insulating layer, the outer heat insulating layer, and the intermediate heat insulating layer can be enclosed and protected by a separate heat insulating material protection layer.

The heat insulating material 180 is coupled to the inner surface or the inner surface of the first divided body 100 to form the first heat insulating unit 400a. And is coupled to the corresponding portion of the valve unit 50. The side surface of the heat insulating material 180 is supported by the first support portion 124 of the first finishing chassis 120 and the second plate 150. The first supporting part 124 may have a length corresponding to the thickness of the heat insulating material 180 to support the entire side surface of the heat insulating material 150.

The second divided body 200 may be combined with the heat insulating material 280 to form the second heat insulating unit 400b.

The heat insulating material 280 includes an inner heat insulating layer (not shown) adjacent to the outer surface of the valve unit 50, an outer heat insulating layer (not shown) disposed in the outer diameter direction of the inner heat insulating layer (Not shown) interposed therebetween, or may have a single layer structure. The structure of the heat insulating material 280 is the same as that of the first heat insulating unit 400a.

16, the heat insulating material 280 is joined to the inner circumferential surface or the inner surface of the second divided body 200 to form the second heat insulating unit 400b, and the second heat insulating unit 400b, And is coupled to the corresponding portion of the valve unit 50. The side surface of the heat insulating material 280 is supported by the second support portion 224 of the second finishing chassis 220 and the fourth plate 250. The second supporting portion 224 may have a length corresponding to the thickness of the heat insulating material 280 to support the entire side surface of the heat insulating material 280.

The third divided body 300 may be combined with the heat insulating material 380 to form a third heat insulating unit 400c.

The heat insulating material 380 includes an inner insulating layer (not shown) adjacent to the outer surface of the valve unit 50, an outer insulating layer (not shown) disposed in the outer diameter direction of the inner insulating layer (not shown) (Not shown) interposed therebetween, or may have a single layer structure. The structure of the heat insulating material 380 is the same as that of the first heat insulating unit 400a.

16, the heat insulating material 380 is joined to the inner circumferential surface or the inner surface of the third divided body 300 to form the third heat insulating unit 400c, And is coupled to the corresponding portion of the valve unit 50. The side surface of the heat insulating material 380 is supported by the first support portion 124 of the first chassis 120, the second support portion 224 of the second finishing chassis 220 and the sixth plate 350 do.

The first heat insulating unit 400a, the second heat insulating unit 400b and the third heat insulating unit 400c are coupled to enclose the valve unit 50 and are accurately and firmly held by a separate clamp or hinge Assembled and detachably assembled.

15 and 16 show a state in which the first heat insulating unit 400a, the second heat insulating unit 400b, and the third heat insulating unit 400c are assembled by using the clamp 450. FIG. 15 is a sectional view of an assembly part of the first heat insulating unit 400a and the second heat insulating unit 400b and FIG. 16 is a sectional view of the first heat insulating unit 400a, the second heat insulating unit 400b, 3 is a perspective view showing a state in which the three-piece heat insulating unit 400c is assembled by using the clamp 450. FIG.

15 and 16 show a state in which the first heat insulating unit 400a, the second heat insulating unit 400b and the third heat insulating unit 400c are assembled, Since the first divided body 100, the second divided body 200 and the third divided body 300 are parts of the first divided body 100, the second divided body 200 and the third divided body 300, Means that the body 300 is assembled using the clamps 350a and 350b.

15, the first heat insulating unit 400a, the second heat insulating unit 400b and the third heat insulating unit 400c are provided with a hook portion 456, a locking portion 452, (Not shown). At this time, one of the clamps 450 may be used, but a plurality of clamps 450 can be firmly assembled.

The locking portion 452 is fixedly coupled to the outer surface of the first plate 110 and the hook portion 456 is fixedly coupled to the outer surface of the second plate 210, And is rotatably connected to the locking portion 452. [

The assembly is carried out by hooking the connection ring 454 to the hook portion 456 and pulling the locking portion 452 toward the first divided body 100 or the first heat insulating unit 400a to connect the connection ring 454 So that the hook portion 456 is connected and assembled with a predetermined elastic force. The locking part 452 is pivoted toward the second divided body 200 or the second heat insulating unit 400b so as to detach the coupling ring 454 from the hook part 456, The divided body 100 and the second divided body 200 or the first and second

heat insulating units

400a and 400b are separated from each other.

Such an assembly method through the clamp is also applicable to the case where the first and third

heat insulating units

400a and 400c are assembled or the second and third

heat insulating units

400b and 400c are assembled .

As described above, when assembling the first heat insulating unit 400a, the second heat insulating unit 400b and the third heat insulating unit 400c using the clamp 450, However, due to the size of the clamp 450, damage may occur during movement or assembly of the first and second

heat insulating units

400a and 400b, There is a risk of

That is, since the clamp 450 has a predetermined size and is installed to protrude outwardly of the divided

bodies

100, 200, and 300, the first and second

heat insulating units

400a and 400b are protruded at the time of installation or movement in a narrow space, The second heat insulating unit 400b and the third heat insulating unit 400c may be damaged.

In order to prevent such a problem, the first adiabatic unit 400a, the second adiabatic unit 400b and the third adiabatic unit 400c may be hinged using a hinge (not shown).

16, the first heat insulating unit 400a, the second heat insulating unit 400b, and the third heat insulating unit 400c are formed so as to cover the outer surface corresponding to the shape of the valve unit 50, Assembled, and assembled using the clamp 450.

At least one clamp 450 may be detachably assembled to both the first heat insulating unit 400a, the second heat insulating unit 400b, and the third heat insulating unit 400c.

As described above, according to the present invention, the heat insulating material protection cover assembled to the valve unit is combined with the plurality of plates using the finishing chassis and the connection chassis, thereby facilitating the detachment and attachment, Process simplification can be achieved. Further, the rigidity can be improved and the bonding strength of the bonding portion can be increased.

17 is a longitudinal sectional view of the first divided body.

When the first plate 110 is made of a flexible sheet structure, the first plate 110 is compressed and fixed to the third insertion groove 133a of the third coupling portion 132, There is a fear that the pressed and fixed portion may be easily torn or damaged when pulled. If the portion of the first plate 110 inserted into the third insertion groove 133a is torn or damaged, the first plate 110 may be detached.

Therefore, the first plate 110 is folded so that the portion to be inserted into the third insertion groove 133a of the connection chassis 130 is overlapped twice, and the reinforcing plate 113 inserted into the folded two- May be additionally provided. 17, when the silver foil 111 and the metal net 112 are folded and folded in a laminated structure, the reinforcing plate 113 may be inserted into the folded portion of the silver foil 111 have. If the reinforcing plate 113 is additionally provided as described above, the first plate 110 can be stably and firmly coupled to the connection chassis 130, so that the durability of the piping insulation device according to the present invention is remarkably improved .

A reinforcing plate 113 is added to a portion of the first plate 110 that is coupled to the connection chassis 130. The first finishing chassis 120 of the first plate 110, A reinforcing plate 113 may be added to a portion to be joined to the reinforcing plate 113. The third plate 210 and the third plate 310 may be formed of a flexible sheet structure so that the connection between the third plate 210 and the third plate 310, A reinforcing plate may be added to a portion coupled to the chassis 220.

Further, the insulating device for a valve unit according to the present invention may further include an anti-vibration means 500 for attenuating the vibration in the middle so that all the vibration generated in the valve unit 50 is not transmitted to the outside.

The vibration damping means 500 may be disposed on the outer side of the first plate 110, the third plate 210, and the fifth plate 310, An inner tube 520 having one end in the longitudinal direction inserted into the outer tube 510 and the other longitudinal end of which is seated in the valve unit 50; 520 and one end in the longitudinal direction is seated on the inner surface of the plate of either the first plate 110, the third plate 210, or the fifth plate 310, And an elastic body 530 whose other end is seated on the valve unit 50.

One end of the outer tube 510 is coupled to the inner surface of the first plate 110 (more specifically, the inner surface of the silver foil 110), and the other end of the outer tube 510 is connected to the valve unit 50 And is made to have a length that is spaced apart. In addition, the inner tube 520 is formed such that one side in the longitudinal direction is seated in the valve unit 50, and the other side in the longitudinal direction is spaced apart from the first plate 110. Accordingly, the inner tube 520 can be moved to a certain level in the longitudinal direction while being inserted into the outer tube 510.

17, when the valve unit 50 is vertically oscillated, the inner tube 520 reciprocates in the longitudinal direction (up and down direction in FIG. 17), and thereby the outer tube The elastic body 530 surrounding the inner tube 520 and the inner tube 520 absorbs vibration while repeatedly performing compression and recovery. That is, even if vibration is generated in the valve unit 50, the vibration is not directly transmitted to the first plate 110 but is mostly absorbed by the elastic body 530 of the vibration isolator 500, It is advantageous to effectively prevent vibration.

Since the vibration of the valve unit 50 is absorbed by the elastic body 530 as described above, when the elastic body 530 is formed as a coil spring and installed between the first plate 110 and the valve unit 50 Even if the outer tube 510 and the inner tube 520 are omitted, the vibration may not be transmitted to the first plate 110. However, if the vibration-damping means 500 is constituted by only the coil spring-shaped elastic body 530, the elastic body 530 may be inclined at the time of vibration of the valve unit 50, and vibration may not be normally absorbed. Therefore, as shown in the present embodiment, it is preferable that the anti-vibration means 500 is configured such that one elastic body 530 spirally surrounds the outer tube 510 and the inner tube 520 connected by a double tube structure . When the elastic body 530 spirally surrounds the outer tube 510 and the inner tube 520 as long as the outer tube 510 is not separated from the first plate 110, The longitudinal direction of the valve unit 50 is kept constant toward the central axis of the valve unit 50, so that the vibration of the valve unit 50 can be effectively damped.

When the dustproof means 500 is provided in the first divided body 100, the reinforcing plate 113 may be installed at a position where the outer tube 510 is coupled to the inner surface of the first plate 110 have. When the reinforcing plate 113 is installed at a position where the outer tube 510 is coupled to the inner surface of the first plate 110 as described above, the outer tube 510 is rotated several times by the vibration of the valve unit 50 There is an advantage that the first plate 110 is not broken even if it vibrates up and down.

Although the vibration damping means 500 is provided in the first divided body 100 in the present embodiment, the vibration damping means 500 may be mounted on the second divided body 200 or the third divided body 300 . When the vibration isolating means 500 is provided in the second divided body 200 and the third divided body 300, the reinforcing plate 113 is disposed between the third plate 210 and the fifth plate 310 The outer tube 510 is coupled to the inner surface of the plate.

The thermal insulating device for a valve unit according to the present invention is characterized in that not only the first plate 110 is made of the silver foil 111 and the metal net 112 but also the third plate 210 is made of the silver foil paper 211, And the fifth plate 310 may be made of a silver foil piece 311 and a metal net 312. [

In the case where the first plate 110, the third plate 210 and the fifth plate 310 are fabricated in a fabric structure having ductility, the operator can easily perform the heat insulation device for a valve unit according to the present invention even in a narrow space It is possible to install it. Further, when the first plate 110, the third plate 210, and the fifth plate 310 are fabricated in a fabric structure having ductility, the insulation unit for a valve unit according to the present invention is lightweight, There is an advantage that it becomes.

The thermal insulation device for a valve unit according to the present invention is characterized in that the surface of the

heat insulating material

180, 280, and 380 is not directly exposed to the outside, Or a protective sheet 600 covering a portion not covered by the second divided body 200 or the third divided body 300. [ At this time, the protective sheet 600 is made of a nonflammable fabric such as ceramic fiber and has a flexible characteristic, and is folded so that both sides in the width direction overlap each other.

When the protective sheet 600 is directly coupled to the finishing

chassis

120 and 220 made of metal, the protective sheet 600 is made of the finishing chassis 120 and 220 ) May easily occur.

Therefore, in the insulating device for a valve unit according to the present invention, the width of the protective sheet 600 can be more tightly coupled to the finishing chassis 120, A plurality of fastening rivets 710 which penetrate through one side of the protection sheet 600 and then pass through the first finishing chassis 120 or the second finishing chassis 220; And a fastening washer 730 on which the head 712 of the fastening rivet 710 is seated.

19, the fixing wire 720 is located at a position out of the region where the clamping washer 710 is seated. The widthwise both sides of the protective sheet 600 are connected to the finishing chassis 120, So that the protective sheet 600 is firmly coupled to the first finishing chassis 120 and the second finishing chassis 220, respectively.

The foregoing description of the embodiments is merely illustrative of the present invention with reference to the drawings for a more thorough understanding of the present invention, and thus should not be construed as limiting the present invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the basic principles of the present invention.

Claims

A shaft protruding from an upper portion of the valve body, and a valve unit including a wheel for opening and closing the valve by being coupled to an upper end of the shaft, the valve unit being connected between at least two pipes, Wherein the valve unit comprises:

A first plate having a curved surface corresponding to a lower curved surface of the valve unit or the valve body and having a length corresponding to the length of the valve unit, a first finishing chassis coupled to both ends of the first plate in the width direction, A first partition having first and second plates coupled to both ends of the first plate in a direction perpendicular to the first plate;

A third plate having a shape corresponding to an upper side of the valve unit or the valve body and having a length corresponding to the length of the valve unit and a second finishing chassis coupled to both ends of the third plate in the width direction, And a fourth plate vertically coupled to both ends of the third plate in the longitudinal direction of the third plate.

A fifth plate having a shape corresponding to the upper surface of the valve unit or the valve body and having a length corresponding to the length of the valve unit, A first finishing chassis coupled to a second end in a width direction in contact with the second divided body at the fifth plate; a second finishing chassis coupled to the fifth finishing chassis at both ends in the longitudinal direction of the fifth plate; A third partition having a sixth plate vertically coupled to the plate;

And the valve unit is assembled in a detachable manner so as to surround the valve unit,

Wherein at least one of the first plate, the third plate, and the fifth plate is made of a sheet structure having ductility.
The method according to claim 1,

Wherein at least one of the first plate, the third plate and the fifth plate is composed of a soft silver foil fabric and a metal net surrounding the outer surface of the silver foil fabric.
The method according to claim 1,

The plates of the first plate, the third plate, and the fifth plate, which are formed of the silver foil and the metal net, are folded so that the portions to be inserted into the connection chassis, the first finishing chassis, And a reinforcing plate is inserted into the folded portion.
The method according to claim 1,

An outer tube extending from an inner side surface of the first plate, the third plate, and the fifth plate toward the valve unit; and a second tube having one end in the longitudinal direction inserted into the outer tube, And a coil spring shape which surrounds the outer circumferential surface of the outer tube and the inner tube, and one end in the longitudinal direction of the outer tube and the inner tube is connected to the inner surface of one of the first plate and the third plate and the fifth plate And an elastic body that is seated on the valve unit and whose other longitudinal direction end is seated on the valve unit.
The method of claim 4,

Further comprising a reinforcement plate provided on an inner surface of a plate to which the outer tube of the first plate, the third plate, and the fifth plate is coupled.
The method according to claim 1,

The first finishing chassis comprises a first engaging portion having a "C" -shape cross-sectional shape and having a first insertion groove into which an end portion of the first plate or the fifth plate is inserted for press- And the second finishing chassis is formed with a first finishing chassis having an end portion of the third plate or the fifth plate inserted into the first finishing chassis and press- A second engaging portion having a " C "cross-sectional shape having a first engaging groove and a second engaging groove; an extension portion extending from an end portion of the second engaging portion in a direction opposite to the second engaging portion; And a second support portion extending in a direction perpendicular to the first coupling portion and the extending portion and perpendicular to the second coupling portion and the extending portion, and has a generally T-shaped cross-sectional shape.
The method of claim 6,

The thermal insulation device for a valve unit according to the present invention is characterized in that the first engagement portion of the first finishing chassis and the extension portion of the second finishing chassis overlap and the first finishing portion of the first finishing chassis and the second finishing chassis (2) is made to come into contact with each other to assemble two adjacent divided bodies.
The method of claim 6,

Wherein a first protrusion of a serrated shape is formed on one inner surface of each of the first insertion groove and the second insertion groove and a second protrusion of a serrated shape is formed on the other surface of the inner surface of the first insertion groove and the second insertion groove, Insulation device for units.
The method of claim 6,

Wherein the first divided body has a semicircular shape, and the second divided body and the third divided body have an "a" shape.
The method of claim 6,

Wherein a semicircular groove for passing the shaft is formed in each of a central portion where the third plate is in contact with the third divided body and a central portion in which the fifth plate is in contact with the second divided body. Insulation device for units.
The method of claim 6,

Wherein the first plate and the second plate, the third plate and the fourth plate, and the fifth plate and the sixth plate are coupled to each other through a connection chassis, A first protrusion is formed on one side of the inner side of each of the third insertion groove and the fourth insertion groove and a second protrusion is formed on the other inner side surface of the first insertion groove, Wherein one end of the first plate, the third plate, or the fifth plate is inserted into the third insertion groove, and the second plate, the second plate, Wherein one end of the fourth plate or the sixth plate is inserted into the fourth insertion groove and is coupled by pressing the connection chassis.
The method of claim 11,

Wherein the connection chassis has a shape in which an intermediate portion is bent in an "a" shape so that the first end portion and the second end portion are at an angle to each other.
The method of claim 11,

Wherein the first to sixth plates, the first finishing chassis, the second finishing chassis, and the connection chassis are each made of a soft metal.
The method of claim 6,

Wherein the first divided body, the second divided body, and the third divided body are assembled by at least one clamp or at least one hinge.
The method of claim 6,

Further comprising a heat insulating material embedded in the first divided body, the second divided body, and the third divided body, respectively.
16. The method of claim 15,

A protective sheet that covers a portion of the surface of the heat insulating material that is not covered by the first divided body, the second divided body, or the third divided body, and is folded so that both sides in the width direction overlap each other;

A plurality of fastening rivets fastened to the first finishing chassis or the second finishing chassis so as to penetrate through one side of the protective sheet in the widthwise direction,

A fixing wire inserted into a folded portion of both sides in the width direction of the protective sheet;

A fastening washer on which the head of the fastening rivet is seated;

Further comprising: a heat exchanger for heating the valve unit.