KR101948982B1 - Method for manufacturing heat plate of block type plate heat exchanger - Google Patents

Abstract

The present invention relates to a heat exchanger comprising a head and an upper base, a plurality of heat transfer plates stacked on top of the upper head and a base, and a side plate provided on a slope of the heat transfer plate, The present invention relates to a method of manufacturing a heat transfer plate of a block type plate heat exchanger in which a fluid of a heat transfer plate is passed through the heat transfer plate, And a bending process for inclining the edge of the heat transfer plate manufactured by the trimming process at an inclined angle. The present invention also relates to a method of manufacturing a heat transfer plate of a block type plate heat exchanger.
As described above, the heat transfer plate of the block type heat exchanger of the present invention has a remarkable effect such that the manufacturing and assembling process is simple and the productivity is excellent, and the heat transfer plate is not easily deformed and corroded due to high pressure and high heat.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block type plate heat exchanger,

The present invention relates to a heat exchanger comprising a head and an upper base, a plurality of heat transfer plates stacked on top of the upper head and a base, and a side plate provided on a slope of the heat transfer plate, Type heat exchanger in which the fluid of the heat exchanger is heat-exchanged.

A heat exchanger is a device that transfers the heat of a fluid to another fluid and performs functions such as heating, cooling, condensation and evaporation, and is widely used throughout the industry.

Because it is used in many industrial fields, the kinds of fluids applied are also very diverse, and various heat exchangers are used in many industrial fields and handle various fluids.

A related art related to a heat transfer plate used in such a heat exchanger or a heat exchanger is a heat transfer plate for a square type heat exchanger in which a corrugation composed of a floor and a corrugation forms a heat transfer passage in Registration No. 1017328, Wherein two regions on the upper side of the heat transfer path are symmetrical with respect to the heat transfer path of the adjacent upper region, and the two regions of the lower side of the heat transfer path are symmetrical with respect to the heat transfer path of the adjacent upper region, And the discharge passage is connected to the heat transfer passage and the end of the discharge passage is located at each of the four sides of the heat transfer plate, so that the foreign matter mixed with the fluid passing through the heat transfer passage is discharged to the outside Wherein the heat exchanger is provided with a flow path for discharging heat The registration has been published.

Another prior art is a heat exchanger plate for a plate heat exchanger in Patent Publication No. 0918756, comprising an edge extending around the plate, an edge region extending from the inside of the edge to the periphery of the plate, Wherein the plate includes a support region and wherein the support region extends around the heat exchange surface inside the edge region and includes corrugations of ridges and valleys, The plate has a square shape with four corners, the edges being formed by four side edges, and in each of the corners, the support region has a ridge or valley extending in a direction coinciding with the diagonal line between the corners , Each ridge and valley of the support region along the center of the side edge has a side edge nearest the ridge and valley Plate heat exchanger, characterized in that extending in the direction vertical register is disclosed.

However, the manufacturing and assembling processes used in conventional plate heat exchangers are complicated, and the heat transfer plate is deformed and easily corroded due to high pressure and high heat.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a heat transfer plate of a block type plate heat exchanger which is simple in manufacturing and assembling process and excellent in productivity, and in which the heat transfer plate is not deformed and corroded due to high pressure and high heat .

A plurality of heat transfer plates stacked on top of a head and a lower base of the upper portion of the present invention and between a head and a base of the upper portion of the upper portion of the present invention, and side plates provided on slopes of the heat transfer plates, A method for manufacturing a heat transfer plate of a block type plate heat exchanger in which a fluid is passed and heat exchanged, characterized in that the heat transfer plate has a forming step of forming irregularities on the upper and lower surfaces, a trimming step of cutting the edge of the heat transfer plate formed by the forming step, And a bending process for bending the edge of the heat transfer plate produced by the trimming process at an inclined angle.

As described above, the heat transfer plate of the block type heat exchanger of the present invention has a remarkable effect such that the manufacturing and assembling process is simple and the productivity is excellent, and the heat transfer plate is not easily deformed and corroded due to high pressure and high heat.

1 is an exploded schematic view of a conventional plate heat exchanger;
2 is a photograph of a manufacturing process of a heat transfer plate installed in a block type plate heat exchanger of the present invention.
3 is an external perspective view of a block type plate heat exchanger of the present invention.
4 is a plan view of a block type plate heat exchanger of the present invention.
5 is an internal perspective view of the block type plate heat exchanger of the present invention with one side removed.
6 is a partial perspective view showing the upper side of the block type plate heat exchanger of the present invention.
7 is a partial perspective view showing a lower side of the block type plate heat exchanger of the present invention.
8 is a perspective view of a heat plate block installed in a block type plate type heat exchanger of the present invention.
9 is a partial perspective view showing a rattle plate and a baffle installed in a block type plate heat exchanger according to the present invention.
10 is a Baffle photograph installed in a block type plate heat exchanger of the present invention.
11 is a photograph of a literal plate installed in a block type plate heat exchanger of the present invention.
12 is a view showing a state in which a heat transfer plate installed in a block type heat exchanger of the present invention is coupled with a heat transfer plate installed in a conventional plate heat exchanger.
Fig. 13 is a comparative view of a corner portion of a heat plate block of a block type plate heat exchanger of the present invention and a corner portion of a heat plate coupled to a conventional plate heat exchanger. Fig.
FIG. 14 is a comparative view comparing the combination of the heat plate block and the corner lining provided in the block type heat exchanger of the present invention and the combination of the heat transfer plate and the edge lining provided in the conventional plate heat exchanger.
Fig. 15 is a manufacturing process diagram of a block type plate heat exchanger according to the present invention. Fig.

A plurality of heat transfer plates 1 stacked on top of the head 18 and the lower base 19 of the present invention and between the upper head 18 and the base 19; A block type in which a high temperature fluid (H) and a low temperature fluid (C) pass through and are heat exchanged between the plural heat transfer plates (10, 11, 12, 13) A method for manufacturing a heat transfer plate of a plate heat exchanger, characterized in that the heat transfer plate (1) has a forming step of forming irregularities on the upper and lower surfaces, a trimming step of cutting the edge of the heat transfer plate (1) And a bending process for bending the edge of the heat transfer plate 1 manufactured by the bending process.

A plurality of the heat transfer plates 1 are laminated to form a unit block BL, and a plurality of the blocks BL are laminated.

The heat transfer plate 1 is made of titanium, a titanium alloy, SUS, SM0254 or LSX.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method of manufacturing a heat transfer plate of a block type plate heat exchanger according to the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded schematic view of a conventional plate heat exchanger.

1, a conventional plate-type heat exchanger includes a head 18 and a lower base 19, and a plurality of heat transfer plates 1 in the form of a plate between the upper head 18 and the base 19, And is designed to have a structure in which the fluid flows into the space between the heat transfer plates 1. [

At this time, the fluid flowing between the heat transfer plates 1 is a principle in which heat is exchanged between fluids by flowing in a direction in which two kinds of fluids having different temperatures are orthogonal to each other.

In other words, the flow of the fluid is configured to have a cross-flow type of flow, and when the baffle that constitutes the pass is attached, the flow of the multi-pass causes a counter-flow flow Temperature proximity is possible to 3 degrees or less.

That is, a baffle is provided between the side plates 10, 12 on which the high temperature fluid H moves and the heat transfer plate 1 so that the high temperature fluid H introduced through the inlet port 22 is divided into a plurality of The high temperature fluid H that has branched and flows between the heat transfer plates 1 and flows between the heat transfer plates 1 is again joined together by the baffle B and discharged to the outside through the outflow pipe 23.

A baffle is provided between the side plates 11 and 13 on which the low temperature fluid H moves and the heat transfer plate 1 so that the low temperature fluid C introduced through the inlet port 28 The low temperature fluid C that branched and flows between the plurality of heat transfer plates 1 and flows through the heat transfer plates 1 is further joined together by the baffle B and discharged to the outside through the outflow pipe 29 do.

The baffle B for branching and joining the high temperature fluid H and the baffle B for branching and joining the low temperature fluid C may be provided together or separately.

Even when the flow rate difference between the two fluids is large, a pass is applied to the side having a small flow rate, so that an appropriate flow rate can be obtained and a high heat transfer performance can be obtained.

This makes it possible to prevent fouling by low flow rates.

The baffle B functions as a partition for separating upper and lower spaces. The plurality of heat transfer plates 1 are installed as a unit so as to be vertically spaced apart from each other, so that the fluids (C, H) (B). ≪ / RTI >

On the other hand, upper and lower lining (20, 21) for maintaining airtightness when a fluid flows are mounted between the head (18), the heat transfer plate (1), the base (19) and the heat transfer plate Side gaskets 14, 15, 16, 17 are mounted between the side plates 10, 11, 12, 13 so that the airtightness is further maintained.

The upper and lower lining 20 and 21 and the side gaskets 14, 15, 16 and 17 may be selected from metal, synthetic resin and synthetic rubber.

2 is a photograph of a manufacturing process of a heat transfer plate installed in a block type plate heat exchanger of the present invention.

As shown in FIG. 2, the heat transfer plate 1 provided in the block type plate heat exchanger according to the present invention includes a forming step of forming irregularities on the upper and lower surfaces of the heat transfer plate 1, a step of forming the edge of the heat transfer plate 1 formed by the forming process, , And a bending process for bending the edge of the heat transfer plate 1 produced by the trimming process in an inclined manner.

The edges of the heat conductive plate 1 are inclined by the bending process, and corner portions where sides and sides meet are overlapped with each other as shown in the photograph shown in the bending process of FIG.

The shape of the concavities and convexities in the forming step may be variously formed.

The devices used in the foaming process, the trimming process, and the bending process are common devices, and a detailed description thereof will be omitted.

In particular, the heat transfer plate 1 is made of titanium, a titanium alloy, SUS, SM0254, or LSX.

FIG. 3 is an external perspective view of the block type heat exchanger of the present invention, FIG. 4 is a plan view of the block type heat exchanger of the present invention, FIG. 5 is an internal perspective view of the block type heat exchanger of FIG. 7 is a partial perspective view showing a lower side of the block type plate heat exchanger of the present invention, FIG. 8 is a perspective view of a heat plate block provided in the block type plate type heat exchanger of the present invention, FIG. 9 is a perspective view of a partial plate and a baffle installed in the block type plate heat exchanger of the present invention, FIG. 10 is a photograph of a baffle installed in the block type plate heat exchanger of the present invention, and FIG. 11 is a cross- It is a literal plate that is installed.

For reference, the same reference numerals are used to denote the same components of a conventional plate heat exchanger and a plate heat exchanger of the present invention.

As shown in FIGS. 3 to 11, a plurality of heat transfer plates 1 installed in the block type plate heat exchanger of the present invention are laminated to be manufactured as one unit heat transfer plate block BL.

A plurality of the heating plate blocks BL manufactured as described above may be stacked.

The upper fixing blocks 31, 32, 33 and 34 are integrally formed on the upper surfaces of the corner girders 6, 7, 8 and 9 for fastening the head 18 and the corner girders 6, 7, .

A lower fixing block (not shown) is integrally formed on the bottom surfaces of the corner girders 6, 7, 8 and 9 to fasten the corner girders 6, 7, 8, 9 and the base 19 together.

The lower fixing block (not shown) and the upper fixing blocks 31, 32, 33, and 34 are formed in the same shape.

Namely, upper fixing blocks 31, 32, 33, and 34 formed on the upper and lower surfaces of the long bar-shaped corner girders 6, 7, 8, 9 are formed around the corner girders 6, 7, 32, 33 and 34 and the lower fixing block by inserting a bolt or a pin into the upper fixing block 31, 32, 33, 34 and the lower fixing block, 34 are fastened to the head 18 and the lower fixing block is fastened to the base 19. [

The edge lining 2, 3, 4 and 5 is described in more detail. The two ends of the openings are bent inward so that the edge lining 2, 3, 4, (6, 7, 8, 9) are inserted in the upper or lower direction of the corner lining (2, 3, 4, 5) and fastened to each other.

The sealing plate A is inserted in a portion where the corner lining 2, 3, 4, 5 and the side plates 10, 11, 12, 13 are in contact with each other, thereby increasing the sealing force.

The sealing plate (A) is made of metal or synthetic resin.

The corner lining 2, 3, 4 and 5 have flanges LP1 and RP1 formed on one side of a left side plate LP and a right side plate RP symmetrical to each other, LP are formed between the flange surfaces LP1 and RP1 of the right side plate RP and the flange surfaces LP1 and RP1 of the right side plate RP.

This is to make the edge lining 2, 3, 4 and 5 easier to manufacture than to be integrally manufactured by dividing into the left side plate LP and the right side plate RP.

On the other hand, SUS, Ti, SM0254, and SUS304 are added to the corner lining 2, 3, 4 and 5, the corner girders 6, 7, 8 and 9 and the portion directly contacting the fluid in the heat transfer plate 1 and the baffle B, LSX was selected to prevent corrosion.

12 is a view showing a state in which a heat transfer plate installed in a block type heat exchanger of the present invention is coupled with a heat transfer plate installed in a conventional plate heat exchanger.

As shown in FIG. 12 (a), in the conventional heat transfer plate structure, corrosion occurs due to an increase in Cl ^- concentration due to dissolved oxygen depletion of a stagnant fluid in a gap between the heat transfer plates 1.

Accordingly, in the block type plate heat exchanger of the present invention, as shown in FIG. 12 (b), the edge angle of the heat transfer plate is formed at 90 degrees to prevent corrosion in the clearance.

FIG. 13 is a comparative view comparing edge portions of a heat plate block of a block type plate heat exchanger of the present invention with corner portions of a conventional heat exchanger installed in a plate heat exchanger.

Since the heat transfer plates 1 are manufactured in units of one as shown in FIG. 13 (a), the heat transfer plates 1 are stacked and welded together and then joined to the edge lining 2, 3, 4, A separate steel plate U is welded to the corner of the heat transfer plate 1. [

Therefore, there is a disadvantage in that the welding time is long and the welding portion can be destroyed because there are too many welding portions.

However, in the block type plate heat exchanger of the present invention, as shown in FIG. 13 (b), when the heat transfer plate 1 is formed as a block, that is, as the heat transfer plate block BL, The working time is shortened because the number of welded portions is small and the conventional heat transfer plate 1 is bonded more firmly than it is bonded.

FIG. 14 is a comparative view comparing the combination of the heat plate block and the edge lining provided in the block type heat exchanger of the present invention and the combination of the heat transfer plate and the edge lining provided in the conventional plate heat exchanger.

As shown in FIG. 14, in the related art, when the edge lining 2, 3, 4, 5 and the steel plate U are combined, the welding area is very narrow, 3, 4 and 5 and the hoisting plate U are easily separated, the block type plate heat exchanger of the present invention can be fixed to each other much more firmly due to a wide welded portion.

Seam welding or Tig welding is the welding method.

Fig. 15 is a manufacturing process diagram of the block type plate heat exchanger of the present invention.

As shown in FIG. 15, the block type plate heat exchanger of the present invention includes a first stage in which the heat transfer plate 1 is laminated and welded; A second step of joining and welding the upper lining 20; 3) attaching the edge lining (2, 3, 4, 5); A fourth step of mounting a semi-finished product in which the heat transfer plate 1 laminated on the welding jig, the upper lining 20 and the edge lining 2, 3, 4, 5 are combined; 5 steps of welding; Attaching the rat plate 30; (7) assembling the head (18) and the corner girders (6, 7, 8, 9); (8) assembling the side plates (10, 11, 12, 13); And a step (9) of assembling the base (19).

That is, in the first step process, the heat transfer plates 1 are laminated and welded so that the respective heat transfer plates 1 are fixed to each other.

At this time, the heat transfer plate 1 is laminated using a lamination jig.

In the two step process, the upper lining 20 is joined to the heat transfer plate 1 laminated and fixed by welding.

For the 3-step process, attach the edge lining (2, 3, 4, 5).

At this time, the edge lining (2, 3, 4, 5) is attached using the assembly jig.

In the 4th step process, the semi-finished product in which the laminated heat transfer plate 1, the upper lining 20 and the corner lining 2, 3, 4, 5 are combined is mounted on the seam welding jig.

Since the welding jig is a conventional apparatus, a detailed description thereof will be omitted.

In the 5th step process, the semi-finished product mounted on the welding jig is welded.

Seam welding or Tig welding is performed as described above.

In the sixth step process, the rat plate 30 is attached.

The rattle plate 30 is attached using an assembly jig.

In the seventh step, the head 18 and the corner girders 6, 7, 8 and 9 are assembled.

The side plates 10, 11, 12 and 13 are assembled in the 8-step process.

Finally, in the ninth step, the base 19 is assembled.

After step 7, step 7-1 for assembling the baffle (B) is added.

The baffle installed in the block type plate heat exchanger according to the present invention is formed with wrinkles on the upper or lower surface thereof, thereby reinforcing the rigidity of the baffle itself.

The rattle plate 30 indicates a plate shape to be mounted on each side of the head 18 and the base 19.

As described above, the heat transfer plate of the block type heat exchanger of the present invention has a remarkable effect such that the manufacturing and assembling process is simple and the productivity is excellent, and the heat transfer plate is not easily deformed and corroded due to high pressure and high heat.

1. Heat transfer plate 1a. Flange surface
2, 3, 4, 5. Edge lining
6, 7, 8, 9. Corner girder
10, 11, 12, 13. Shroud
14, 15, 16, 17. Side gasket
18. Head
19. Base
20. Top lining
21. Lower lining
22. Inlet
23. Outlet
24. Inlet
25. Outlet
26, 27, 28, 29. Support frame
30. Ratal plate
31, 32, 33, 34. The upper fixing block
A. Closed Plate
B. Beppel B1. Protruding groove BL. Heat plate block
LP. Left plate RP. Right side plates LP1 and RP1. Flange surface
U. Plate U1. Uneven portion

Claims (3)

A plurality of heat transfer plates 1 stacked on top of the upper head 18 and the lower base 19 and between the upper head 18 and the base 19 and a side plate Wherein a high temperature fluid (H) and a low temperature fluid (C) pass through and are heat exchanged between the plurality of stacked heat transfer plates (10, 11, 12, 13) (1) comprises a forming step of forming irregularities on the upper and lower surfaces, a trimming step of cutting the edges of the heat conductive plate (1) formed by the forming step to fit the dimensions, and a step of cutting the edges of the heat conductive plate A method of manufacturing a heat transfer plate of a block type plate heat exchanger including a bending process for bending,
A plurality of the heat transfer plates 1 are laminated to form one unit block BL. The heat transfer plate 1 is made of titanium, titanium alloy, SUS, SM0254, LSX,
When the heat transfer plate 1 is made of a block type heat transfer plate block BL, the platens U are integrally manufactured,
Upper fixing blocks 31, 32, 33 and 34 formed on the upper and lower surfaces of the long bar-shaped corner girders 6, 7, 8 and 9, respectively, around the corner girders 6, 7, 8 and 9, A lower fixing block having the same shape as the upper fixing blocks 31, 32, 33 and 34 is integrally formed and a through hole is formed in the upper fixing blocks 31, 32, 33 and 34 and the lower fixing block The upper fixing blocks 31, 32, 33 and 34 are fastened to the head 18 by inserting bolts or pins, the lower fixing block is fastened to the base 19,
The edge lining 2, 3, 4 and 5 are bent in the inward direction at the ends of two sides of the opening. The corner lining 2, 3, 4 and 5 is provided with corner girders 6, 7 and 8 , 9) are fastened by being inserted in the upper or lower direction of the edge lining (2, 3, 4, 5) and fastened,
The sealing plate A is inserted into a portion where the corner lining 2, 3, 4, 5 and the side plates 10, 11, 12, 13 are in contact with each other, A synthetic resin,
The side lining (2, 3, 4, 5) has flanges (LP1, RP1) formed on one side of a left side plate (LP) and a right side plate (RP) And the flange surfaces (LP1, RP1) of the right side plate (RP) are inserted and adhered to each other,
Ti, SM0254, and LSX are directly formed on the corner lining 2, 3, 4, 5, the corner girders 6, 7, 8, 9 and the portion directly contacting the fluid in the heat transfer plate 1 and the baffle To prevent corrosion by alternating,
The upper fixing blocks 31, 32, 33, 34 are integrally formed on the upper surfaces of the corner girders 6, 7, 8, 9 for fastening the head 18 and the corner girders 6, 7, 8, And the lower fixing block is integrally formed on the bottom surfaces of the corner girders 6, 7, 8 and 9 to fasten the corner girders 6, 7, 8, 9 and the base 19,
An edge angle of 90 ° is formed on the heat transfer plate 1 to prevent corrosion in the gap,
When the heat transfer plate 1 is manufactured as a heat transfer plate block BL, since the plated plates U are integrally manufactured, the working time is shortened due to few welding portions, and the heat transfer plate 1 is bonded to the heat transfer plate 1 much more firmly Lt; / RTI &
The welding method is seam welding or Tig welding,
The block-type plate heat exchanger includes a first stage in which the heat transfer plate 1 is laminated and welded; A second step of joining and welding the upper lining 20; 3) attaching the edge lining (2, 3, 4, 5); A fourth step of mounting a semi-finished product in which the heat transfer plate 1 laminated on the welding jig, the upper lining 20 and the edge lining 2, 3, 4, 5 are combined; 5 steps of welding; Attaching the rat plate 30; (7) assembling the head (18) and the corner girders (6, 7, 8, 9); (8) assembling the side plates (10, 11, 12, 13); (9) of assembling the base (19)
In the first step, the heat transfer plates 1 are stacked and welded so that the heat transfer plates 1 are fixed to each other. The heat transfer plates 1 are laminated using a stacking jig,
In the two step process, the upper lining 20 is joined to the heat transfer plate 1 which is stacked and fixed by welding,
3, 4, and 5 are attached to the corner lining 2, 3, 4, and 5 by using the assembly jig,
In the four step process, a semi-finished product in which the laminated heat transfer plate 1, the upper lining 20 and the corner lining 2, 3, 4, 5 are combined is mounted on the seam welding jig,
In the 5-step process, the semi-finished product mounted on the welding jig is welded, and the welding is performed by seam welding or Tig welding,
In the sixth step, the rattle plate 30 is attached, and the rattle plate 30 is attached using an assembling jig,
In the seventh step, the head 18 and the corner girders 6, 7, 8 and 9 are assembled, and after the step 7, a 7-1 step of assembling the baffle B is added.
In the eight-step process, the side plates 10, 11, 12, and 13 are assembled,
Finally, in the ninth step, the base 19 is assembled,
The baffle installed in the block type plate heat exchanger is formed with a wrinkle on the upper or lower surface thereof to complement the rigidity of the baffle itself,
Wherein the lateral plate (30) is in the form of a plate mounted on each side of the head (18) and the base (19).

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