KR101458156B1 - Plate type heat exchanger using refrigerant gas - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate type heat exchanger using a refrigerant gas, and more particularly to a plate type heat exchanger using a refrigerant gas that prevents leakage of a refrigerant gas and a fluid by preventing a gasket provided at an edge of a heat- will be.
The present invention is characterized in that a plurality of heat transfer plates are closely attached between first and second plates facing each other and a gasket for allowing refrigerant gas and heat transfer fluid to alternately flow through the heat transfer plate is provided on one side edge of each heat transfer plate There is provided a plate type heat exchanger using a refrigerant gas to be installed, wherein a refrigerant gas is provided between a first plate and a second plate, and is provided with a support plate closely attached to an edge of the heat transfer plate and an edge of the gasket .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a plate type heat exchanger using a refrigerant gas,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate type heat exchanger using a refrigerant gas, and more particularly to a plate type heat exchanger using a refrigerant gas that prevents leakage of a refrigerant gas and a fluid by preventing a gasket provided at an edge of a heat- will be.

The plate-type heat exchanger is a heat exchanger in which the corrugations are formed over the entire surface of the thin metal plate in consideration of the type of the fluid, the flow path, and the strength, thereby increasing the heat exchange efficiency by stacking several heat transfer plates having long flow paths.

In the plate-type heat exchanger, a gasket is provided at the edge of the closely laminated thin metal heat transfer plate, and a gasket is interposed between the laminated heat transfer plates. The gasket induces a fluid by a corrugated flow path formed in the heat transfer plate, As shown in FIG.

At this time, the gasket is circular in cross section, and when the heat exchanger is operated, when the gasket is pushed outward due to the pressure difference between the inside and the outside of the gasket and the repeated contraction and expansion, there is a problem that the fluid leaks.

Particularly, when a gas is used as a refrigerant, a higher pressure than a heat transfer using a fluid acts on the gasket, and there is a high probability that the gasket is pushed and the refrigerant gas or fluid leaks.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a gasket for a gasket, And to provide a plate heat exchanger using the refrigerant gas.

According to an aspect of the present invention, there is provided a plasma display panel including a plurality of heat transfer plates closely disposed between first and second plates facing each other, and a refrigerant gas and a heat- The refrigerant gas is introduced into the first and second plates, and the refrigerant gas, which is provided on the edge of the heat transfer plate and on the support plate closely contacting with the edge of the gasket, is installed in the plate heat exchanger using the refrigerant gas, Is used as the heat exchanger.

In addition, the heat transfer plate may have a through hole for providing a path for the refrigerant gas and the heat transfer fluid, and the gasket may be further installed along the outer circumferential surface of the through hole so as to surround the through hole.

At this time, an inner space surrounded by the gasket is formed on the heat transfer plate, and a passage extending from the through hole to the inner space side is formed in the gasket so that the refrigerant gas and the heat- Are alternately formed.

A first heat transfer plate on which a gasket having a passage extending from a through hole through which the refrigerant gas flows into the inner space side is provided; a second heat transfer plate on which a gasket having a passage extending from the through- Heat transfer plates are installed alternately.

On the other hand, first and second support plate fixing portions are respectively formed on the surfaces of the first and second plates corresponding to the heat transfer plate, and one end and the other end of the support plate are respectively fixed by the first and second support plate fixing portions .

Further, a hole may be formed in the support plate.

At this time, the support plate may be formed as a pair which is installed to be in close contact with the edges of both side portions of the heat transfer plate.

In addition, the support plate may be formed of a pair, which is installed so as to be in close contact with the edges of both side portions of the heat transfer plate, and a pair of the heat transfer plates, which are installed to be in close contact with the upper and lower edges of the heat transfer plate.

The first and second support plate fixing portions may be grooves or holes, and one end and the other end of the support plate are inserted into the grooves or holes.

In addition, the first and second support plate fixing portions may be protrusions, and the outer surface of the support plate is closely fixed to the protrusions.

The holes may be formed in the form of a matrix or may be elongated horizontally while maintaining a predetermined gap therebetween. Alternatively, the holes may be elongated vertically while maintaining a predetermined gap therebetween.

The protrusions may be formed as a pair of protrusions extending from the top to the bottom at both edges of the first and second plates.

The protrusions may include first and second upper extension portions, the first and second upper extension portions extending in the direction of the center of the first and second plates, and the lower end of the first and second plate portions extending toward the center of the first and second plates And the first and second lower extension portions may be formed.

According to the present invention, a support plate is provided so as to be in close contact with the edge of the heat transfer plate, so that the gasket installed at the edge of the heat transfer plate is prevented from being pushed outward by the support plate.

It is also possible to form the hole-shaped support plate fixing portions on the first and second plates so that one end and the other end of the support plate are inserted into the support plate fixing portion and the length of the support plate is adjusted each time according to the lamination thickness of the heat transfer plate The burden can be reduced.

In addition, a hole may be formed in the support plate to prevent the gasket from being pushed out, and to reduce the weight increase due to the addition of the support plate.

1 is an exploded perspective view of a plate-type heat exchanger according to a first embodiment of the present invention.
2A and 2B are a perspective view and a front view showing a configuration of a heat transfer plate provided with a gasket of a plate heat exchanger according to a first embodiment of the present invention.
3A and 3B are a perspective view and a front view showing another structure of a heat transfer plate provided with a gasket of a plate heat exchanger according to a first embodiment of the present invention.
4 and 5 are an assembled perspective view and an assembled cross-sectional view of a plate-type heat exchanger according to a first embodiment of the present invention.
6 to 9 are views showing another embodiment of the support plate of the plate-type heat exchanger according to the first embodiment.
10 and 11 are an exploded perspective view and an assembled cross-sectional view of a plate-type heat exchanger according to a second embodiment of the present invention.
12 and 13 are an exploded perspective view and an assembled cross-sectional view of a plate heat exchanger according to a third embodiment of the present invention.
14 is a perspective view showing another embodiment of the support plate fixing portion of the plate heat exchanger according to the third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the drawings showing preferred embodiments, details of the objects, technical constructions and effects of the present invention will be described in detail. The terms defined in describing the present invention are defined in consideration of the functions of the present invention and should not be construed to limit the technical elements of the present invention.

(Embodiment 1)

FIG. 1 is an exploded perspective view of a plate-type heat exchanger according to a first embodiment of the present invention, and FIGS. 2a and 2b are a perspective view and a front view, respectively, showing a structure of a heat transfer plate provided with a gasket of a plate- 3A and 3B are a perspective view and a front view showing another configuration of a heat transfer plate provided with a gasket of the plate heat exchanger according to the first embodiment of the present invention, and FIG. 4 is a plan view showing a plate heat exchange according to the first embodiment of the present invention FIG. 5 is an assembled cross-sectional view according to the first embodiment of the present invention, and FIGS. 6 to 9 are views showing another embodiment of the support plate of the plate-type heat exchanger according to the first embodiment.

1 to 5, a plate-type heat exchanger 1 according to a first embodiment of the present invention includes first and second plates 10 and 20 facing each other, first and second plates 10 and 20, A plurality of heat transfer plates 40 positioned between the first and second plates 10 and 20 and disposed adjacent to the edge of the heat transfer plate 40 between the heat transfer plates 40 and 20, (50). At this time, it is preferable that the support plate 50 is installed in close contact with the edge of the heat transfer plate 40.

Each of the first and second plates 10 and 20 is provided with an assembly groove 11 and 21 and a fastening member 60 is inserted along the assembly groove 11 and 21, A plurality of heat transfer plates 40 positioned between the first and second plates 10 and 20 are pressed and adhered to each other to form a heat transfer plate pack. At this time, the fastening member 60 may be a bolt 61 and a nut 62.

Although the first and second plates 10 and 20 are integrally connected by using the fastening member 60 in the present embodiment, the first and second plates 10 and 20 may be integrally connected to each other without using the fastening member 60. However, The first and second plates 10 and 20 are fixed by using a welding member welded between the first and second plates 10 and 20 while being pressed at both sides of the two plates 10 and 20 It is possible.

The first plate 10 is provided with a pair of first inlet pipes 71 and a pair of first outlet pipes 72 for circulating the refrigerant gas for circulation of heat, The second inlet pipe 81 and the second outlet pipe 82 are installed as pipes and the first plate 10 and the respective heat transfer plates 40 are provided with the first and the second inlet pipes 71, First and second through holes (12, 41) corresponding to the first and second discharge pipes (72, 82) are formed to provide a passage for the refrigerant gas and the fluid.

In the present embodiment, the first and second inlet pipes 71 and 81 and the first and second outlet pipes 72 and 82 are both provided on the first plate 10, The first and second inlet pipes 71 and 81 and the first and second outlet pipes 72 and 82 are formed in the first plate 10 and the second plate 20 , And the first and second plates (10, 20) are respectively provided with the first and second inlet pipes (71, 81) and the first and second outlet pipes (72, 82) May be formed.

The heat transfer plate 40 is formed of a thin metal plate. Generally, a heat transfer path is formed in the heat transfer plate 40 with a fine wave pattern so that the flow of the fluid is forced to flow in a turbulent flow, have.

The gasket 30 is installed on one side of the heat transfer plate 40 along the periphery of the heat transfer plate 40 and the outer circumferential surface of the second through hole 41. At this time, ). ≪ / RTI >

Therefore, the gasket 30 has the internal space 31 on the heat transfer plate 40, and the refrigerant gas and the heat transfer fluid alternately flow through the internal space 31 to perform heat exchange It will be lost.

At this time, the gasket 30 is provided with a first through hole 41 and a second through hole 41 so that the refrigerant gas flowing through the second through hole 41 and the heat transfer fluid alternately flow into the inner space 31, And a passage 32 extending in the direction of the arrow A are alternately formed.

2A and 2B, the gasket 30 having the passage 32 extending from the second through-hole 41 into which the refrigerant gas is introduced to the inner space 31 is formed in one heat transfer plate (not shown) The heat transfer plate 40 is formed with a passage 32 extending from the second through hole 41 into which the heat transfer fluid flows to the inner space 31 side, as shown in FIGS. 3A and 3B A gasket 30 is installed and passages 32 are alternately installed in the gasket 30 so that the refrigerant gas and the heat transfer fluid can flow alternately into the internal space 31. [

At this time, the number and width of the passages 32 extending from the second through hole 41 to the inner space 31 can be appropriately selected by those skilled in the art.

The gasket 30 may be formed of a material such as neoprene, nitrile rubber, butyl rubber, hyphalon, ethylene propylene, silicone rubber, fluorine rubber, asbestos, and Teflon, and the heat transfer plate 40 may be made of stainless steel, nickel Alloy, titanium, zirconium, or the like.

The support plate 50 prevents the gasket 30 provided on the heat transfer plate 40 from being pushed out to the outside and is provided adjacent to the edge of the heat transfer plate 40. The support plate 50 is in close contact with the edge of the heat transfer plate 40, .

Since the support plate 50 is in close contact with the edge of the heat transfer plate 40 so as to be in close contact with the edge of the gasket 30 provided at the edge of the heat transfer plate 40, It can be prevented from being pushed out.

According to the present embodiment, the gasket 30 positioned at the edge of the heat transfer plate 40 and the gasket 30 surrounding the outer peripheral surface of the first through hole 41 are integrally formed or abutted.

Therefore, the gasket 30, which surrounds the outer circumferential surface of the first through hole 41, can be prevented from being pushed by the refrigerant gas and the heat-conductive fluid flowing into the inner space 31, and the gasket 30, It is possible to prevent the refrigerant gas and the flow of the heat-transfer fluid from interfering with each other.

The support plate 50 is plate-shaped and has one end located at the first plate 10 and the other end positioned at the second plate 20.

At this time, the support plate 50 may be installed to be in close contact with a part of the edge of the heat transfer plate 40, or may be installed so as to be in close contact with the whole of the heat transfer plate 40.

That is, the support plate 50 may be composed of a pair 51 and 52 which are installed so as to be in close contact with the edges of both side portions of the heat transfer plate 40. As shown in FIG. 6, (51, 52) provided so as to be in close contact with the edge of the side portion and a pair (53, 54) provided so as to be in close contact with the upper and lower edges of the heat transfer plate (40).

At this time, a pair (51, 52) provided so as to be in close contact with the edges of both side portions of the heat transfer plate 40 and a pair (53, 54) provided so as to be in close contact with the upper and lower edges of the heat transfer plate But the configuration of the support plate 50 is not limited thereto and the configuration of the support plate 50 may be appropriately modified depending on the shape of the heat transfer plate 40. [ Do.

At this time, one end of the support plate 50 located on the first plate 10 may be fixed to the first plate 10 by welding or the like. Alternatively, the support plate 50 may be fixed to the second plate 20 The other end of the support plate 50 may be fixed to the second plate 20 by welding or the like.

The first and second support plate fixing parts 13 and 22 are formed on the first and second plates 10 and 20 and the support plate fixing parts 13 and 22 are grooves. One end and the other end of the support plate 50 are installed so as to be positioned in the first and second support plate fixing portions 13 and 22, respectively.

Therefore, by forming the first and second support plate fixing portions 13 and 22, the support plate 50 can be easily installed by securing the mounting position of the support plate 50, 50 can be prevented from being easily separated from the first and second plates 10, 20.

According to the first embodiment, the first and second supporting plate fixing parts 13 and 22 are formed on the inner surface of the first and second plates 10 and 20 corresponding to the heat transfer plate 40, And are formed as a pair which is spaced apart by a predetermined distance.

At this time, the distance between the pair of first and second support plate fixing portions 13, 22 is equal to the width of the heat transfer plate 40.

Of course, the shapes of the first and second support plate fixing portions 13 and 22 are not limited to those described above, and may be formed to correspond to the shape of the support plate 50, respectively.

7 to 9, when the hole 55 is formed in the support plate 50, the gasket 30 is prevented from being pushed out, and at the same time, the weight increase due to the addition of the support plate 50 Can be reduced.

At this time, the holes 55 may be formed in a matrix shape, or may be elongated left and right with a predetermined gap left therebetween, or may be formed up and down with a predetermined gap left and right. Is not limited thereto.

(Second Embodiment)

FIG. 10 is an exploded perspective view of a plate-type heat exchanger according to a second embodiment of the present invention, and FIG. 11 is an assembled cross-sectional view of a plate-type heat exchanger according to a second embodiment of the present invention.

The same components as those of the plate-type heat exchanger 1 according to the first embodiment of the configuration of the plate-type heat exchanger 1 'according to the second embodiment are denoted by the same reference numerals and the detailed description thereof will be omitted. .

The plate-type heat exchanger 1 'according to the second embodiment of the present invention has the same structure as the plate-like heat exchanger 1' according to the first embodiment in the configuration of the second support plate fixing part 23 formed on the second plate 20 ' ).

That is, in the first embodiment, the second support plate fixing portion 22 formed on the second plate 20 is a groove, and in the second embodiment, the second support plate fixing portion 22 'formed on the second plate 20' The gate 23 is the hall.

Therefore, when the first plate 10 and the second plate 20 'are coupled to each other to press-contact the heat transfer plate 40, the second plate 20' is moved toward the first plate 10, The other end of the support plate 50 can be inserted and moved through the second support plate fixing portion 23 so that the process load required to be adjusted by adjusting the length of the support plate 50 according to the stacking thickness of the heat transfer plate 40 Can be reduced.

Meanwhile, in the second embodiment, the second support plate fixing part 23 formed on the second plate 20 'is a hole, and the first support plate fixing part 13 formed on the first plate 10 The first support plate fixing part 13 formed on the first plate 10 is a hole and the second support plate fixing part 23 formed on the second plate 20 ' Can be a groove. In addition, both the first and second support plate fixing portions 13 and 23 formed on the first and second plates 10 and 20 'may be holes.

(Third Embodiment)

FIG. 12 is an exploded perspective view of a plate-type heat exchanger according to a third embodiment of the present invention, FIG. 13 is an assembled cross-sectional view of a plate-type heat exchanger according to a third embodiment of the present invention, FIG. 4 is a perspective view showing another embodiment of the support plate fixing portion of the plate heat exchanger according to the first embodiment of the present invention. FIG.

The same components as those of the plate-type heat exchanger 1 according to the first embodiment among the components of the plate-type heat exchanger 1 " according to the third embodiment of the present invention are denoted by the same reference numerals, , Only the different configurations will be described in detail.

The plate-type heat exchanger 1 "according to the third embodiment of the present invention has a structure in which the first and second support plate fixing portions 14, 24 formed on the first and second plates 10", 20 " Type heat exchanger 1 according to the first embodiment.

That is, in the first embodiment, the first and second support plate fixing portions 13 and 22 formed on the first and second plates 10 and 20 are grooves, and in the third embodiment, The first and second support plate fixing parts 14 and 24 formed on the two plates 10 " and 20 " are protrusions, and the first and second support plate fixing parts 14, Is projected from the inner surface of the heat transfer plate (10 ", 20 ") corresponding to the heat transfer plate (40) toward the heat transfer plate (40).

The first and second support plate fixing portions 14 and 24 are fixed to the first and second plates 10 and 20 and support the support plate 50 on the outside of the support plate 50 So that the support plate 50 is fixed.

Each of the first and second support plate fixing portions 14 and 24 is formed of a pair of spaced apart from the first and second plates 10 " and 20 " by a predetermined distance, And the second support plate fixing portions 10 " and 20 " are the same as the width of the heat transfer plate 40. [

The first and second support plate fixing portions 14 and 15 are disposed on the opposite side of the support plate 50 from the heat transfer plate 40, 24).

At this time, the first and second supporting plate fixing parts 14 and 24 are formed in a straight shape extending from the top to the bottom at both edges of the first and second plates 10 " and 20 " The height of the support plate 50 is preferably the same as the height of the support plate 50, but is not limited thereto.

14, each of the first and second support plate fixing portions 14, 24 is formed in a straight shape extending from the upper side to the lower side at both edges of the first and second plates 10 ", 20" The first and second upper extension portions 15 and 25 and the first and second lower extension portions 16 and 26 (upper and lower ends) extend toward the center of the first and second plates 10 " and 20 & ). ≪ / RTI >

One end of the support plate 50 and the upper end of the other end are in close contact with the first and second upper extension portions 15 and 25 and the first and second lower extension portions 16 and 26 are engaged with the support plate 50 and the lower ends of the other ends are in close contact with each other.

Of course, in FIG. 14, the first and second upper extension portions 15 and 25 and the first and second lower extension portions 16 and 26 are formed on the first and second support plate fixing portions 14 and 24 It is possible to form only the first and second upper extension portions 15 and 25 or to form only the first and second lower extension portions 16 and 26. [

Although the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1, 1 ', 1 ": plate heat exchanger 10, 10": first plate
11, 21: Assembly groove 12: First through hole
13, 14: first support plate fixing portion 15, 25: upper extension portion
16, 26: lower extension 20, 20 ', 20 ": second plate
22, 23, 24: second support plate fixing portion 30: gasket
31: inner space 32: passage
40: heat transfer plate 41: second through hole
50: a support plate 51, 52: a pair of support plates
53, 54: a pair of support plates 55: holes
60: fastening member 61: bolt
62: nut 71: first inlet pipe
72: first outlet pipe 81: second inlet pipe
82: Second discharge pipe

Claims (13)

A heat transfer plate disposed between the first and second plates to face each other, and a heat transfer plate disposed between the first and second plates so as to be in close contact with the heat transfer plate, 1. A plate heat exchanger using a refrigerant gas including a gasket for allowing gas and heat transfer fluid to alternately flow,
The gaskets are alternately formed with passages extending from the through holes of the heat transfer plate to the inner space side between the heat transfer plates,
Wherein a support plate is provided between the first and second plates to prevent the gasket between the heat transfer plate and the heat transfer plate from being pushed out to the outside. delete delete The method according to claim 1,
A first heat transfer plate provided with a gasket having a passage extending from the through hole into which the refrigerant gas flows,
And a second heat transfer plate on which a gasket having a passage extending from the through hole through which the heat transfer fluid is introduced to the inner space side is installed are alternately arranged. The method according to claim 1,
The first and second support plate fixing portions are respectively formed on the surfaces of the first and second plates corresponding to the heat transfer plate, and one end and the other end of the support plate are fixed by the first and second support plate fixing portions, respectively A heat exchanger for cooling the refrigerant; The method according to claim 1,
Wherein the support plate is formed with a hole. The method according to claim 1,
Wherein the support plate is formed of a pair which is installed so as to be in close contact with an edge of both side portions of the heat transfer plate. The method according to claim 1,
Wherein the support plate is formed of a pair provided so as to be in close contact with the edge of both side portions of the heat transfer plate, and a pair provided so as to be in close contact with upper and lower edges of the heat transfer plate. 6. The method of claim 5,
Wherein the first and second support plate fixing portions are grooves or holes,
And one end and the other end of the support plate are inserted into the groove or the hole. 6. The method of claim 5,
Wherein the first and second support plate fixing portions are protrusions,
And the outer surface of the support plate is closely fixed to the protrusion. The method according to claim 6,
Wherein the holes are formed in a matrix or vertically formed to be laterally long with a predetermined gap left therebetween or vertically formed with a predetermined gap left and right. . 11. The method of claim 10,
Wherein the protrusions are formed in a pair of straight-line shapes extending from the top to the bottom at both edges of the first and second plates. 11. The method of claim 10,
Wherein the protrusions have first and second upper extension portions, the first and second upper extension portions each having a straight upper end extending toward a central portion of the first and second plates, and a second lower extension portion having a straight lower end extending toward the center portion of the first and second plates 1 < / RTI > and a second lower extension. ≪ Desc / Clms Page number 13 >

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