KR101079695B1 - Installation method of corrosion resistance metal lining and jig module therefor - Google Patents

Abstract

PURPOSE: A method for installing a corrosion-proof metal lining and a jig module for the same are provided to improve productivity by installing a corrosion-proof metal lining in an inlet of a frame using a simple processing process. CONSTITUTION: A method for installing a corrosion-proof metal lining is as follows. A seamless short pipe(10) is prepared. Flanges are formed in one end of the short pipe. The short pipe is inserted into outlet so that the flange is hung on the one side of the frame. One end of the short pipe is projected longer than one side of the frame. A flange fixing plate(20) is located on the other side of the frame. The other end of the short pipe adheres closely to the other side of the frame by outward winding the moldable rubber by pushing a pressing plate.

Description

INSTALLATION METHOD OF CORROSION RESISTANCE METAL LINING AND JIG MODULE THEREFOR}

The present invention relates to a method and a jig module for mounting a corrosion resistant metal lining at an inlet formed in a frame of a device in which a corrosive fluid such as a heat exchanger is used.

Metals can be easily corroded by water or other acidic solutions, and are more important for devices with corrosive fluids.

Most preferably, all the parts in contact with the fluid may be made of a material having high corrosion resistance, but a metal material, which is inevitably corroded due to cost, formability, or durability, may be used.

Typical materials having corrosion resistance include SUS (stainless steel), titanium, and the like, and synthetic resins are also good corrosion resistant materials.

A number of techniques using synthetic resins are known as techniques for preventing corrosion, but are not preferred for applications in devices such as heat exchangers where high temperatures are formed.

Plate heat exchangers, which are widely used due to their high heat exchange efficiency, are constructed by sealingly assembling a plurality of laminates between two frames. 1 is a perspective view showing a schematic view of a general plate heat exchanger, Figure 2 is an exemplary view showing an example of a metal lining formed in the outlet in FIG.

Four outlets are formed at either side of the frame, and pipes are connected to the outlets to allow the working fluids to be circulated.

Since fluid flows through the outlet of the frame, the outlet of the frame is fitted with lining to prevent corrosion. The prior art of mounting a corrosion resistant metal lining at the outlet of a heat exchanger is roughly divided into two types.

3 is an exemplary view illustrating a method of forming a metal lining by a welding method, and FIG. 4 illustrates an example of a method of forming a metal lining by a multi-step mold molding method.

First, as a welding method, one cylindrical tube 1 to be inserted into the outlet inlet is prepared, and flanges 2 which are each welded to both ends of the cylindrical tube 1 are prepared. Cylindrical tube (1) also has to be welded by rolling the plate round, and the flange (2) and the cylindrical tube (1) is also coupled by welding, which has the disadvantage of low durability due to problems such as weld defects or weak to impact. .

Second, after preparing the end pipe (3) having a flange on one side by a multi-stage mold molding method, a plurality of molds (4) are used to fix the frame by inserting the end pipe at the outlet of the frame and forming a flange on the other side of the end pipe. Bend gradually to fit the corrosion resistant lining. However, in order to bend the other side of the short pipe to make a flange, a plurality of molds have to be attached and detached gradually, so there is a problem that the productivity is low and the work is difficult.

1. Korean Patent Publication No. 10-1996-0007441 (1996.05.31 announcement) 2. Republic of Korea Patent No. 10-0603707 (registered on July 13, 2006)

The present invention is to provide a method and a jig module for the non-welding method to be able to mount a corrosion-resistant metal lining in a single mold quickly and easily.

In the method of mounting the corrosion-resistant metal lining of the present invention for achieving the problem as described, in the method of mounting the corrosion-resistant metal lining at the outlet of the frame through which the fluid passes, there is provided a seamless end pipe with a flange formed at one end Single tube preparation step to make; A short pipe insertion step of inserting the short pipe into the outlet opening so that the flange is caught on one surface of the frame, and the other end of the short pipe protrudes from the other surface of the frame; A jig setting step of placing a flange fixing plate on one surface of the frame and inserting a molding rubber into the inner diameter of the short pipe and arranging a pressure plate coaxially to face the molding rubber in the other surface direction of the frame; And pressing the pressure plate so that the molding rubber is opened outwardly so that the other end of the end pipe is in close contact with the other surface of the frame.

And the jig setting step in the present invention, the flange fixing plate, the molded rubber, the pressing plate is to be fitted to one shaft, the pressing plate to be fitted to the shaft next to the pressing plate and the nut is coupled to both ends of the shaft It is characterized by that.

And in the present invention, the single pipe preparation step, characterized in that to obtain by spinning the corrosion-resistant plate material.

In another aspect of the present invention, the jig module for mounting a corrosion-resistant metal lining, the flange fixing plate in close contact with one surface of the frame; Molded rubber is inserted into the inner diameter of the short pipe inserted into the outlet and the one end surface is in contact with the flange fixing plate; A pressure plate in contact with the other end surface of the molded rubber; Pressing means for moving the pressing plate to deform the molding rubber; A shaft for connecting the flange fixing plate, the molding rubber, the pressing plate, and the pressing means coaxially; And nuts coupled to both ends of the shaft.

And in the present invention, the other end surface center of the molded rubber is made of a slope surface to form a cone shape as the inner diameter decreases toward the inside, the center of the pressing plate is formed with a slope protrusion corresponding to the slope surface, the edge of the pressing plate The thickness is thicker toward the flange fixing plate from the inner side to the outer side is characterized in that the induction inclined portion is formed.

And in the present invention is characterized in that the mounting groove in which the molded rubber is seated is formed in the flange fixing plate which one end surface of the molded rubber is in contact, the pressing means is characterized in that it is operated by hydraulic pressure.

According to the present invention, it is possible to install a corrosion-resistant metal lining at the inlet and outlet of the frame through a simple work process to improve the productivity, there is an effect that can provide a good quality lining bar non-contact.

In addition, even the unskilled person can work, it is possible to maintain the quality while reducing labor costs.

1 is a perspective view showing a schematic view of a typical plate heat exchanger.
2 is an exemplary view showing an example of a metal lining formed in the outlet in FIG.
3 is an exemplary view of a method of forming a metal lining by welding.
Figure 4 is an illustration of a method of forming a metal lining in a multi-stage mold forming method.
5 is a process chart for a method of mounting a corrosion resistant metal lining according to the present invention.
6 is an illustration of a jig module for mounting of a corrosion resistant metal lining.
Figure 7 is an illustration of the setting of the jig module and the installation of the corrosion-resistant metal lining.
8 shows an example in which a corrosion resistant metal lining is mounted on a frame having another type of outlet.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted for simplicity of explanation, and like reference numerals designate like parts throughout the specification.

Whenever a component is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, not the exclusion of any other element, unless the context clearly dictates otherwise.

Method of mounting a corrosion-resistant metal lining according to the present invention is a bar through the jig module for mounting a corrosion-resistant metal lining is another technical idea of the present invention, after the description of the method of mounting a corrosion-resistant metal lining The jig module will be described later in more detail. However, in the description of the method of mounting the corrosion resistant metal lining, the description of the jig module to be described later will be referred to.

Corrosion-resistant metal linings can typically be mounted on equipment such as heat exchangers, and can also be applied to other chemical installations and other connections that require corrosion protection.

In the present embodiment it will be described taking an example of the corrosion-resistant metal lining to the outlet inlet formed in the frame of the heat exchanger.

The mounting method of the corrosion resistant metal lining according to the present embodiment includes a short pipe preparation step (S1), a short pipe insertion step (S2), a jig setting step (S3), and a fixing step (S4).

5 is a process chart for a method of mounting a corrosion-resistant metal lining according to the present invention, Figure 6 is an illustration of a jig module for mounting the corrosion-resistant metal lining, Figure 7 is a setting of the jig module and corrosion-resistant metal lining An illustration of the mounting process is shown.

Short pipe preparation step (S1) is a procedure for making a short pipe using a thin plate that is the material of the lining. One end of the short pipe (10) should be formed with a flange (11) to prepare a short pipe (10) in which the flange 11 is formed seamlessly.

In order to obtain the end pipe 10 in which the flange 11 is formed seamlessly using a sheet material, it is preferable to perform a spinning process so that the flange 11 may be formed at one end, and the other end that is blocked is cut off from side to side. The open end pipe 10 is obtained.

In the present embodiment, in order to obtain a short pipe, a spinning process is performed. However, the short pipe can also be manufactured by a deep drawing method. Spinning and deep drawing are themselves well known techniques, and further detailed description thereof will be omitted.

Next, the short tube insertion step S2 is followed. When the end pipe 10 having a predetermined shape is prepared, the end pipe 10 is inserted into the outlet opening 110 of the frame 100 on which the lining is to be mounted. The flange 11 formed at one end of the end pipe 10 has a frame ( To be caught on one side of the 100 and the other end of the short pipe 10 so as to project than the other surface of the frame (100). That is, the length of the produced short pipe 10 should be longer than the thickness of the frame 100.

After the short pipe 10 is inserted into the outlet 110 of the frame 100, the jig setting step S3 is followed. In the jig setting step S3, a jig module made of predetermined components is installed.

The jig module includes the flange fixing plate 20, the molding rubber 30, the pressing plate 40, the pressing means 50, the shaft 60, the nut 70, etc., each of which will be described later.

In the jig setting step (S3), the flange fixing plate 20 is first positioned on one surface of the frame 100 into which the short pipe 10 is inserted, and the molding rubber 30 is inserted into the inner diameter of the short pipe 10. Then, the pressure plate 40 is disposed to face the molding rubber 30 in the other surface direction of the frame 100. The flange fixing plate 20, the molding rubber 30 and the pressing plate 40 are disposed coaxially by one shaft 60, each of which is formed with a shaft hole through which the shaft 60 passes.

The pressing means 50 is provided to deform the molding rubber 30 by moving the pressing plate 40 in the axial direction, and the pressing means 50 is also installed to be fitted to the shaft 60. Nuts 70 are coupled to both ends of the shaft 60, and the nut 70 is properly tightened to allow the flange fixing plate 20 to be in close contact with the frame 100.

When the jig setting step S3 is completed, the fixing step S4 for the final molding is followed.

In the fixing step (S4) of the pressure pipe (40) constituting the jig module by pressing the molding rubber 30, the molding rubber 30 is compressed to spread out to the outside of the short pipe 10 protruding to the other surface of the frame 100 While the other end is spread outwards to be in close contact with the other surface of the frame.

Through the fixing step (S4) the other end of the end pipe 10 is molded into the flange (11 ') to be in close contact with the other surface of the frame 100 to mount the corrosion-resistant metal lining to the outlet inlet 110 of the frame 100 Is done.

When the installation of the lining is completed by the fixing step (S4) by releasing the force applied to the pressing means 50, the pressure plate 40 is returned to its original position again, the molding rubber 30 is also returned to its original state by the elastic force . That is, since the molding rubber 30 can be repeatedly used and the load is applied uniformly along the shaft 60, the compression deformation occurring in the molding rubber 30 is also equally uniform, so that the flange of the other end of the short pipe 10 is formed. Can also be done accurately.

Next, a jig module for mounting a corrosion resistant metal lining, which is another idea of the present invention, will be described in more detail. The description of the jig module will be described with reference to FIG. 6 or 7.

The jig module of the present invention for mounting a corrosion-resistant metal lining to the outlet 110 of the frame 100 is a flange fixing plate 20, molding rubber 30, pressing plate 40, pressing means 50, shaft ( 60) and a nut 70.

The flange fixing plate 20 is in close contact with one surface of the frame 100 having the inlet and outlet 110, and the flange 11 formed in the short pipe 10 may be in close contact with one surface of the frame 100.

The molding rubber 30 is inserted into the inner diameter of the short pipe 10 in a state in which the short pipe 10 is inserted into the outlet inlet 110 of the frame 100. The molding rubber 30 forms a cylindrical shape and one end surface of the molding rubber 30 is in contact with the flange fixing plate 20. Preferably, the flange fixing plate 20 is provided with a mounting groove 21 in which one end surface of the molding rubber 30 is recessed.

The pressing plate 40 in contact with the other end surface of the molding rubber 30 is moved in the axial direction by the pressing means 50 so as to be opened to the outside while compressing the molding rubber 30. The pressurizing means 50 is preferably operated by oil pressure, but other methods may be applied.

The flange fixing plate 20, the molding rubber 30, the pressing plate 40 and the pressing means 50 mentioned above are fitted along one shaft 60 and disposed along the coaxial. Therefore, a shaft hole through which the shaft 60 penetrates is formed at the center of each element such as the flange fixing plate 20.

A nut 70 is coupled to both ends of the shaft 60. Preferably, both nuts 70 are sufficiently tightened so that each element is in close contact before the force acts on the pressure plate 40 by the pressure means 50. .

In the case of the molded rubber 30 in the jig module according to the embodiment of the present invention, the center of the other end surface in contact with the pressure plate 40 may be a slope surface 31 having a cone shape. That is, as shown in the center of the other end surface of the molding rubber 30 to reduce the inner diameter toward the inside, which is the molding rubber 30 as the force is transmitted to the molding rubber 30 through the pressure plate 40 It is intended to be able to compress the deformation as it goes. The slope surface 31 formed on the molding rubber 30 is formed to start at the other end surface of the molding rubber 30 to a predetermined depth.

In the case of the pressure plate 40 to be pressed to the molding rubber 30 so that the slope projection 41 protruding corresponding to the slope surface 31 in the center thereof is formed. And the inclined guide portion 42 is placed on the edge of the pressure plate 40, the guide portion 42 of the short pipe 10 is opened to the outside appropriately when the molded rubber 30 is deformed by the pressure plate 40 The other end is to be bent outward to the flange (11 ').

More specifically, the guide part 42, which is an edge of the pressure plate 40, becomes thicker from the inside toward the outside toward the flange fixing plate 20 to form an inclined shape. Preferably, the starting point of the inclined portion is a point coinciding with the outer diameter of the molded rubber.

In order to mount a corrosion-resistant metal lining to the outlet 110 of the frame 100, insert the prepared short pipe 10 in the outlet and then set the jig module of the present invention and operate the pressing means 50 to the pressure plate ( 40) causes the molding rubber 30 to be compressed. As the pressure plate 40 is gradually moved, the molding rubber 30 is opened to the outside as the overall length is reduced, and thus the end of the short pipe 10 protruding to the other surface of the frame 100 through the outlet 110. Is formed in accordance with the deformation of the molding rubber 30 to form another flange (11 ').

Using the jig module of the present invention as described above it is possible to fix the corrosion-resistant metal lining to the outlet inlet only by one operation of the pressure plate.

Meanwhile, FIG. 8 is an exemplary view showing an example in which a corrosion resistant metal lining is mounted on a frame having another type of outlet.

That is, even when the outlet inlet 110 itself formed in the frame 100 such as a heat exchanger as shown in FIG. 8 protrudes to form a flange-type connector, a corrosion-resistant metal lining through the method and jig module of the present invention as described above Can be fitted.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be.

It is therefore to be understood that the embodiments described above are intended to be illustrative, but not limiting, in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

The invention can be used to mount metal linings of devices requiring corrosion resistance, such as heat exchangers.

10: single tube 11,11 ': flange
20: flange fixing plate 21: seating groove
30: molded rubber 31: slope surface
40: pressure plate 41: slope projection
42: induction part 50: pressurizing means
60: axis 70: nut
100 frame 110 outlet

Claims (6)

A method of mounting a corrosion resistant metal lining at an outlet of a frame through which a fluid passes,
A short pipe preparation step of providing a seamless end pipe having a flange formed at one end thereof;
A short pipe insertion step of inserting the short pipe into the outlet opening so that the flange is caught on one surface of the frame, and the other end of the short pipe protrudes from the other surface of the frame;
Positioning the flange fixing plate on one side of the frame, inserting the molded rubber into the inner diameter of the short pipe so that one end is in contact with the flange fixing plate, the center of the other end surface of the molded rubber is reduced in the inner diameter as the cone shape The pressure plate is disposed so as to face the other end surface of the molded rubber in the other surface direction of the frame, wherein a central portion of the pressure plate is formed with a slope protrusion corresponding to the slope surface, and an edge of the pressure plate is formed. A jig setting step of forming a slanted induction part which becomes thicker from the inner side to the outer side toward the flange fixing plate and is positioned coaxially with the flange fixing plate and the molded rubber;
The pressing means is arranged coaxially with the flange fixing plate, the molding rubber and the pressing plate to press the pressing plate with the pressing means so that the molding rubber is opened outward so that the other end of the short pipe is in close contact with the other surface of the frame. Step; mounting method of the corrosion-resistant metal lining comprising a. The method of claim 1,
The jig setting step,
The flange fixing plate, the molded rubber, and the pressing plate to be fitted to one shaft, but the pressing plate to be fitted to the shaft next to the pressing plate, and the corrosion-resistant metal lining, characterized in that to fasten the nuts at both ends of the shaft How to install delete A jig module for mounting a corrosion resistant metal lining by inserting a flanged end pipe at the outlet of a frame through which a fluid passes,
A flange fixing plate in close contact with one surface of the frame;
Molded rubber is inserted into the inner diameter of the short pipe inserted into the outlet inlet, one end surface is in contact with the flange fixing plate, the other end surface portion is formed of a slope surface of the inner diameter is reduced toward the inside to form a cone shape;
A pressure plate in contact with the other end surface of the molded rubber, a center having a slope protrusion corresponding to the slope surface, and an edge of which is thickened from the inside toward the outside toward the flange fixing plate to form an inclined induction part;
Pressing means for moving the pressing plate to deform the molding rubber;
A shaft for connecting the flange fixing plate, the molding rubber, the pressing plate, and the pressing means coaxially;
Nuts coupled to both ends of the shaft; jig module for mounting a corrosion-resistant metal lining comprising a. delete The method of claim 4, wherein
A seating groove in which the molded rubber is seated is formed in the flange fixing plate to which one end surface of the molded rubber is in contact.
Jig module for mounting the corrosion-resistant metal lining, characterized in that the pressing means is operated by hydraulic pressure.

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