KR100992097B1 - In-line filter used for plate heat exchanger and positioning method thereof - Google Patents

Abstract

PURPOSE: An in-line filter and an installation method thereof is provided to prevent the in-line filter from becoming bent or moved even if the in-line filter is used for a long time. CONSTITUTION: An in-line filter comprises a rectangular perforated panel(110), a pair of fixed rigns(120), an elastic band(300), and a plurality of elastic members(400). The perforated panel forms a cylindrical body by the rolling and comprises a plurality of perforated holes(21). The fixed rings are installed on both ends of the upper part of the perforated panel and are fixed by fixing pins when the perforated panel is rolled and overlapped. When the perforated panel is rolled and overlapped, the elastic band applies the elastic force to the outside of the perforated panel in a radial direction. One side of the elastic member makes contact with a closing cover, is fixed to the inner circumferential surface of the elastic band and the cylindrical body is pressed in a length direction of a cooling-water inlet.

Description

In-line filter for plate heat exchanger and installation method {IN-LINE FILTER USED FOR PLATE HEAT EXCHANGER AND POSITIONING METHOD THEREOF}

The present invention relates to an inline filter mounted inside the cooling water inlet of a plate heat exchanger and a method of installing the same, and there is no fear of inconvenience caused by rolling the perforated plate and corrosion of the welded portion, and easy to install and disassemble. The present invention relates to an inline filter and a method for installing the same, which can be prevented from being deformed by being closely attached between the inline filter and the heat transfer plate.

In general, a plate heat exchanger superimposes a plurality of formed metal plates in consideration of the type and flow of a fluid, structural strength of a product, and alternately flows a heating fluid and a hydrothermal fluid between layers to prevent heat exchange of a fluid passing between the metal plates. It is a device to make it.

In this case, examples of the heating fluid include high temperature fluids such as high temperature water, steam, and lubricating oil. Examples of hydrothermal fluids include fluids that are relatively lower than high temperature fluids such as water, sea water, and refrigerant.

That is, two types of fluids having different temperatures are separated by the interlayer flow path between the metal plates and flow in a counter flow. The heat exchange is performed while the high and low temperature fluids intersect one by one.

Plate heat exchangers are widely used as cooling and heating devices for various boiler facilities, wastewater treatment facilities, dyeing facilities, power plants, ships, incinerators, etc. due to their small size, light weight, and high efficiency.

Hereinafter, a conventional plate heat exchanger will be described with reference to FIGS. 1 and 2.

When foreign matter is included in the heating fluid or the hydrothermal fluid circulating through the heat transfer path formed in the heat transfer plate 11, the heat transfer path is blocked by the foreign matter, which may cause a negative effect of decreasing the thermal efficiency of the heat exchanger and increasing the pressure loss. Since the cooling water inlet hole 13 may be provided with an inline filter 20 for filtering foreign substances, the inline filter 20 may be formed of SUS having a plurality of perforation holes 21 as shown in FIG. 1. It consists of the cylindrical main body 23 which rolled the rectangular perforated plate of (stainless) material, and the flange part 25 formed in the distal end part of the said main body 23. As shown in FIG.

Since the main body 23 rolls the perforated plate on which the perforated hole 21 is formed, both ends are joined by welding to overcome the force to be unfolded as it is and maintain the cylindrical shape.

However, the inline filter 20 mounted on the conventional plate heat exchanger 10 has the following problem.

First, the inline filter 20 mounted on the plate heat exchanger 10 is installed in a state spaced apart from the surface generated by the heat transfer plate 11 inside the cooling water inlet hole 13 as shown in FIG. 2. Therefore, as a space is formed between the surface formed by the inline filter 20 and the heat transfer plate 11, when the foreign matter of the incoming cooling water (sea water, hydrothermal fluid) cannot be removed, the foreign matter is formed in the perforated hole of the inline filter 20. (21) is blocked, which causes the pressure of the coolant to increase inside the inline filter 20, resulting in a warpage of the inline filter 20 as shown by the dashed-dotted line shown in FIG. There is a problem of damage.

Second, when the cooling water is sea water, since the process of forming the inline filter 20 into a cylindrical body is joined by welding, the welding part is corroded by sea water and the pressure of the cooling water is increased for a long time as the pressure of the cooling water increases. There is a problem in that the acceleration and corrosion of the weld site occurs.

Third, when the plate heat exchanger 10 is installed for cooling purposes of the marine marine engine, if the inline filter 20 is broken during operation of the ship, there is a difficulty of airborne replacement, especially the inline filter 20 Is formed as one main body 23, at least a space corresponding to the length of the inline filter 20 is required in order to replace the inline filter 20, since the machine room space of the ship is generally narrow, the inline filter 20 There is a problem that is very difficult to disassemble and replace.

Fourth, although the rivet was used to replace the welding of the inline filter 20, since the inline filter 20 is installed at a predetermined distance away from the surface generated by the heat transfer plate 11, the rivet is corroded or Alternatively, there is a problem of being damaged by the inlet pressure of the coolant to fall off and cause a fatal damage to the running equipment.

The present invention has been made in order to solve the above problems and technical bias, and to provide an inline filter that is in close contact so that there is no space between the surfaces formed by the heat transfer plate, there is no bending or flow, and there is no need for welding. There is this.

Another object of the present invention is to minimize the space required for replacement or disassembly by allowing the inline filter to be divided into predetermined lengths.

Another object of the present invention is to provide an installation method capable of quickly and reliably mounting such an inline filter as described above.

In order to achieve the above object, the in-line filter for a plate heat exchanger according to the first embodiment of the present invention is inserted into a cooling water inlet hole formed by a plurality of heat transfer plates stacked between a cooling water inlet pipe and a sealing cover, and thus the heating plate. An inline filter for a plate heat exchanger for filtering dirt contained in a fluid to be heat exchanged while flowing therebetween, comprising: a rectangular perforated plate having a plurality of perforated holes rolling to form a cylindrical body; A pair of fixing rings which are installed at both upper ends of the perforated plate and are fixed by a fixing pin when the perforated plate is rolled and overlapped; An elastic band fixed to an inner circumferential surface of the perforated plate so that the lower side of the perforated plate may add elastic force to the outside of the perforated plate 110 along the radial direction when the perforated plate is rolled and overlapped; And a plurality of elastic members, one side of which is in contact with the sealing cover and the other side of which is fixed to the inner circumferential surface of the elastic band so that the cylindrical body is compressed in the longitudinal direction of the cooling water inlet hole. .
On the other hand, the main body, at least one boundary portion to be separated into two or more, it is preferable that the boundary portion is coupled by a fixing bolt and a bracket.

delete

delete

delete

In addition, the main body has at least one boundary so that the body can be separated into two or more, one end of the boundary portion of the main body is provided with a bent end inserted into the main body is preferably the bent end is coupled by a coupling bolt. Do.

In addition, the main body has at least one boundary so that the main body can be separated into two or more, and one end of the main body of the main body is provided with a bent end inserted into the main body so that the bent end is provided with the variable adjusting bolt and the variable adjusting nut. It is preferable to combine by.

In this case, each support is fixed to the inner peripheral surface of each boundary of the main body, the spring is provided between the support when the two or more main body is coupled to the variable adjusting bolt and the variable adjusting nut is coupled through the support of the main body It is preferable that the length is adjusted.

On the other hand, the outer peripheral surface of the bent end It is preferable that at least one or more length adjusting holes are formed in which the coupling bolt is coupled in the longitudinal direction of the main body so that length adjustment of the main body is possible when two or more main bodies are coupled.

On the other hand, the upper side of the perforated plate is a pair of fixing ring which is fixed by the fixing pin so as to maintain the overlapped state is fixed to the upper inner surface when the perforated plate is overlapped by rolling to form the cylindrical body integrally It is preferable that the formed circular holding member is further provided.

At this time, the outer peripheral surface of the circular retaining member is projected radially along the outer circumferential surface so as to be spaced apart from the inner circumferential surface when the circular retaining member is fixed to the upper inner circumferential surface of the cylindrical body, the flow path so that the cooling water passes between the circular retaining member and the perforated plate It is preferable that a plurality of spacers to be formed are formed.

In addition, the elastic member is preferably a leaf spring consisting of a contact portion curved so that one side is in contact with the sealing cover, and the other side is fixed to the inner peripheral surface of the elastic band.

In addition, the right end portion of the perforated plate is preferably provided with a separation prevention member formed with a separation prevention groove for receiving the left end portion when rolling.

In addition, the perforated plate, the fixing ring, the circular retaining member, the elastic band, the material of the elastic member is preferably titanium (titanium) and / or stainless.

In addition, it is preferable that the surface of the main body is formed of a mesh.

And, the inner surface of the elastic band is preferably provided with at least one or more handles.

On the other hand, as another aspect for achieving the object of the present invention as described above, the installation method of the in-line filter for the plate heat exchanger is inserted into the cooling water inlet hole formed by a plurality of heat transfer plates laminated between the cooling water inlet pipe and the sealing cover. In the installation method of the in-line filter for the plate heat exchanger for filtering the dirt contained in the heat-exchanging fluid while flowing between the heat transfer plate, a pair of fixing rings fixed by fixing pins are formed at both ends of the upper side, An elastic band is provided, and a plurality of elastic members are fixed to the elastic band, and preparing a rectangular perforated plate formed of a plurality of perforated holes or meshes (S1); Rolling the perforated plate to form a cylindrical body by overlapping (S2); Fixing the upper side of the main body by inserting a fixing pin into the fixing ring (S3); Opening the airtight cover installed at the other end of the cooling water inlet hole and inserting the main body into the cooling water inlet hole of the heat exchanger plate installed in the plate heat exchanger (S4); Removing the fixing pin from the fixing ring to release the fixing on the upper side of the main body (S5); And step (S6) in close contact with the main body to the cooling water inlet hole while the elastic member is pressed by the closing of the sealing cover; It is configured to include.

delete

According to the inline filter and the installation method for a plate heat exchanger of the present invention having the above configuration, since the space with the surface formed by the heat transfer plate is in close contact with each other, even if it is used for a long time, the warpage or flow of the inline filter does not occur. Because it does not weld the joint surface, it is easy to manufacture and install, and it has the effect of maximizing the service life by minimizing the stress that may occur on the welded portion.

In addition, since it can be divided into predetermined lengths as necessary, partial replacement or repair is easy, and the space required for installation is minimized, thereby enabling efficient space utilization.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. The present embodiments and drawings are intended to assist the understanding of the present invention and are not intended to limit the scope of the invention in any way.

Figure 3 is a longitudinal sectional view of the main portion showing a state in which the in-line filter according to the first embodiment of the present invention is mounted on the plate heat exchanger, Figure 4 is a view showing a state before the perforated plate is overlapped according to the first embodiment of the present invention 5A is a main portion perspective view showing a state in which a main body overlaps with a fixing ring of a configuration of an inline filter according to a first embodiment of the present invention, and FIG. 5B is a configuration of an inline filter according to a first embodiment of the present invention. Fig. 6a is a perspective view showing a circular retaining member fixed to an upper side of a perforated plate during construction of an inline filter according to a first embodiment of the present invention. Is a principal part perspective view showing the state in which the circular retaining member of 6a is fixed on the upper side of the perforated plate.

As shown in FIG. 3, the plate heat exchanger 10 is installed to overlap the fluid flowing into the heat exchanger, and a plurality of heat transfer plates 11 are disposed between the cooling water inlet pipe 30 on the left side and the airtight cover 50 on the right side. ) Is stacked and installed in one end of the cooling water inlet hole 13 and the inline filter 100 inserted into the internal space of the cooling water inlet hole 13 generated by the lamination of the heat transfer plate 11. It includes a fixing cover 40 is fixed to the coolant inlet pipe 30 so that the coolant is introduced into.
Here, the closed cover 50 is installed at the other end of the cooling water inlet 13 to perform a function of selectively sealing the cooling water inlet (13).

As shown in FIG. 4, the inline filter 100 includes a perforated plate 110, a pair of fixing rings 120, an elastic band 300, and an elastic member.

The perforated plate 110 has a rectangular shape. In addition, the perforated plate 110 is formed with a plurality of perforated holes 21 penetrating the surface of the perforated plate 110, the perforated plate 110 will be described later through a separate rolling molding machine (not shown) The cylindrical body 190 is formed.

In this case, the perforation hole 21 is preferably formed to be distributed on the entire surface of the perforated plate 110 so that the cooling water flows smoothly.

In addition, the surface of the perforated plate 110 may be formed of a mesh that smoothly flows the cooling water. In this case, the shape of the mesh may be manufactured in the shape of a grid and a checkerboard.

In the first exemplary embodiment of the present invention, the perforation hole 21 and the mesh are described as being formed on the surface of the perforated plate 110, but the structure is not necessarily limited thereto as long as the coolant can smoothly flow.

The pair of fixing rings 120 are installed at both ends (upper side of the drawing) of the perforated plate 110 and are fixed to maintain the overlapped state when the perforated plate 110 overlaps by rolling the perforated plate 110. It is fixed by the pin 123. The pair of fixing rings 120 will be described later.

The elastic band 300 has an elastic force toward the outside of the perforated plate 110 along the radial direction of the perforated plate 110 overlapped when the perforated plate 110 is rolled and overlapped on the lower side (lower side in the drawing) of the perforated plate 110. It is fixed to the inner peripheral surface of the perforated plate 110 to add.

One side of the elastic member is in contact with the sealing cover 50 and the other side is fixed to the inner circumferential surface of the elastic band 300 so that the cylindrical body 190 installed in the cooling water inlet hole 13 is in close contact with each other. have.

Hereinafter, referring to FIGS. 5A and 5B, the structure and operation of a pair of fixing rings 120, elastic bands 300, and elastic members mounted on the inline filter 100 for the plate heat exchanger 10 are described in more detail. Explain.

As shown in FIG. 5A, the perforated plate 110 is rolled to maintain the shape of the cylindrical body 190. At this time, the pair of fixing ring 120 is reached on both sides of the upper end of the perforated plate 110 to reach a certain position when the perforated plate 110 overlaps and overlap on the same horizontal line.

When the fixing pin 123 is inserted into the pair of fixing rings 120 in this state, the perforated plate 110 maintains the shape of the perfect cylindrical body 190 by the ratio.

Precisely, as the fixing pin 123 is fitted to the pair of fixing rings 120, even if the pressing force applied to form the overlap of the perforated plate 110 is released, the force to be stretched as it is is fixed pin 123 Is controlled by).

On the contrary, when the fixing pin 123 is removed from the fixing ring 120, the overlapping punched plate 110 is opened by a force to be unfolded as it is.

That is, it is in close contact with the inner peripheral surface of the cooling water inlet hole 13 of the heat transfer plate (11).

The pair of fixing rings 120 of the present invention has a structure that is fixed to each other by the fixing pins 123, but is not necessarily limited, a structure in which a pair of fixing rings 120 are mutually coupled.

As shown in FIG. 5B, the perforated plate 110 is rolled to maintain a cylindrical main body 190 shape, and the elastic band 300 is fixed to the lower side of the perforated plate 110.

In this case, the elastic band 300 is rolled together when the perforated plate 110 is rolled, it is preferably formed to be thicker than the thickness of the perforated plate (110).

The lower side of the main body 190 when the inline filter 100 is installed in the cooling water inlet hole 13 by having the elastic force in the outward direction of the perforated plate 110 while the elastic band 300 overlaps. The outer circumferential surface is to be in close contact with the cooling water inlet (13).

An inner circumferential surface of the elastic band 300 is in contact with the sealing cover 50 so that the cylindrical body 190 installed in the cooling water inlet 13 is in close contact with the other side of the inner band of the elastic band 300. A plurality of elastic members to be fixed are fixed.

In this case, the elastic member is a leaf spring consisting of an annular contact portion (400a) curved so that one side is in contact with the sealing cover 50, and the other side is fixed to the inner peripheral surface of the elastic band (300) It is preferable that it is (400).

Four leaf springs 400 are fixed to the inner circumferential surface of the elastic band 300, and the contact portion 400a of the leaf spring 400 is formed to protrude more than the lower end of the main body 190. desirable.

3, the airtight cover 50 seals the cooling water inlet 13 while the inline filter 100 is placed in the cooling water inlet 13 of the heat transfer plate 11. The inline filter 100 is in close contact with the cooling water inlet hole 13 in the horizontal direction while the contact portion 400a of the leaf spring 400 comes into contact with the sealing cover 50 and is pressurized by the sealing cover 50. To make it possible.

Here, the number of the leaf springs 400 is described as four, but the number and shape are not limited as long as the plate spring 400 is in contact with the sealing cover to receive the pressing force.

Meanwhile, at least one handle 310 may be further provided on the inner surface of the elastic band 300. In the present invention, the handle 310 is shown as two.

The handle 310 overlaps smaller than the inner diameter of the coolant inlet 13 in the process of placing the rolled main body 190 in the coolant inlet 13 so that the body 190 can be easily settled. Provides ease of gripping.

6A and 6B, the circular holding member 200 may be further provided above the perforated plate 110, that is, above the main body 190.

The circular retaining member 200 is provided on an upper side of the perforated plate 110, and the perforated plate 110 is fixed to an upper inner surface when the perforated plate 110 overlaps by rolling to form the cylindrical body 190 at both ends. A pair of fixing rings 210 fixed by the fixing pins 123 are integrally formed so as to maintain the closed state.

remind The perforated plate 110 is rolled to maintain the shape of the cylindrical body 190. In this case, the circular holding member 200 is rolled together when the perforated plate 110 is rolled.

At this time, the circular retaining member 200 is located on the upper inner peripheral surface of the perforated plate 110 by the rolling of the perforated plate 110, the pair of fixing ring 210 formed on both ends of the perforated plate 110 is overlapped They overlap at some point.

When the fixing pin 123 is inserted into the pair of fixing rings 210 in this state, the perforated plate 110 maintains the shape of the perfect cylindrical body 190 by the ratio.

Precisely, as the fixing pin 123 is fitted to the pair of fixing rings 210, even if the pressing force applied to form the overlap of the perforated plate 110 is released, the force to be unfolded is fixed as it is. Is controlled by).

On the contrary, when the fixing pin 123 is removed from the fixing ring 210, the overlapping perforated plate 110 is opened by the force to be unfolded as it is.

At this time, since the circular retaining member 200 is in a rolled state together with the perforated plate 110, it generates its own elastic force and reinforces the upper side of the perforated plate 110.

That is, when the length of the inline filter 20 is relatively long due to the lamination of the heat transfer plates 11, since the thickness of the perforated plate 110 (about 1 mm or less) is relatively thin, the inline filter 20 may be caused by its own weight. The problem is that the upper side of the sag is sagging. This is to prevent a harmful effect on the heat exchanger due to the inflow of coolant that has not been filtered through (see dotted line in FIG. 3).

In addition, when the length of the inline filter 20 is longer, the circular retaining member 200 may be provided in plural on the inner surface of the inline filter 20.

This is to keep the overlapped state and the circular shape of the inline filter 20 as a whole while preventing sagging around the center of the inline filter 20 or its surroundings, which may be generated due to the length of the inline filter 20. to be.

On the other hand, the circular holding member 200 may be formed with a spacer 230.

7A is a perspective view illustrating a state in which a spaced protrusion is formed on a circular retaining member fixed to an upper side of a perforated plate during configuration of an inline filter according to a first embodiment of the present invention, and FIG. 7B is a circular retaining member of FIG. 7A fixed to a main body. It is a sectional view of the main part showing the state.

As shown in FIGS. 7A and 7B, the outer circumferential surface of the circular retaining member 200 is spaced apart from the inner circumferential surface of the main body 190 when the circular retaining member 200 is fixed to the upper inner circumferential surface of the cylindrical body 190. Accordingly, a plurality of spacers 230 are formed to protrude radially and form a flow path 233 to allow the cooling water to pass between the circular retaining member 200 and the perforated plate 110.

Since the circular holding member 200 having the above configuration is in a state in which the thickness T is increased by the plurality of spaced apart protrusions 230, its own elastic force is increased, thereby improving reinforcement for the upper side of the perforated plate 110. Let's go.

In addition, the flow path 233 formed by the spacer 230 is a coolant to prevent the coolant flowing into the main body 190 by an increase in the thickness T of the circular holding member 200. By passing through to keep the flow of cooling water smooth.

In such a case, when the size of the main body 190 is relatively increased, the thickness T and the width W of the circular retaining member 200 are also large.

As described above, the thickness T and the width W of the circular retaining member 200 may vary depending on the size of the heat transfer plate 11 or the flow path 233, but are not necessarily limited thereto.

The pair of fixing rings 210 of the circular retaining member 200 of the present invention has a structure that is fixed to each other by the fixing pin 123, but is not necessarily limited, a pair of fixing rings 210 are mutually The structure may be combined.

On the other hand, the perforated plate 110, the fixing ring 120, the circular holding member 200, the elastic band 300, the material of the elastic member is preferably titanium (titanium) and / or stainless.

The titanium and the stainless are metals having high corrosion resistance.

However, when the inline filter 100 of the present invention is applied to a plate heat exchanger 10 mounted on a ship, it is preferable that the titanium having strong corrosion resistance against seawater is used, which is the most important factor. Because it becomes.

The inline filter 100 configured as described above is installed in the coolant inlet hole 13 formed in the plurality of heat exchangers 11 disposed in the plate heat exchanger 10, and the coolant (sea water) introduced into the plate heat exchanger 10. It removes foreign substances contained in.

8A to 8C are views illustrating a state in which the separation prevention member 150 is provided in the inline filter according to the second embodiment of the present invention.

As shown in FIG. 8A, a separation prevention member 150 may be further provided at a right end portion of the perforated plate 110 when a separation prevention groove 153 is formed to receive the left end portion when the perforated plate 110 is rolled. .

In this case, the separation preventing member 150 is preferably fixed to the inner surface of the right end portion of the perforated plate 110, as shown in Figure 8b and 8c, in this state when the perforated plate 110 is overlapped by rolling The left end portion of the left side is accommodated in the departure prevention groove 153.

In this case, the length of the separation preventing groove 153 is predetermined so that the left end of the main body 190 does not escape even when the main body 190 is expanded when the inline filter 100 is mounted to the plate heat exchanger 10. It is preferred to have a length.

The release pin 150 is released from the fixing pin 123 is fitted to the fixing ring 120 formed on the upper side of the main body 190, the lower side is the outermost by the elastic band 300 installed on the lower side Even if it is variable, to prevent the lifting of the left end of the left end accommodated in the separation prevention groove 153 between the upper side and the lower side of the main body 190 to maintain the complete overlap state of the inline filter 100.

In this case, the release preventing member 150 is preferably made of titanium (titaniun).

9A and 9B illustrate a first embodiment in which the inline filter according to the present invention has a structure in which two or more separable parts are separated.

As shown in FIG. 9, the inline filter 100 has at least one boundary 170 so that the main body 190 can be separated into two or more. Each boundary portion 170 has a bracket 165 having a plurality of fixing bolts 163 and fixing holes 165a to which the fixing bolts 163 are fitted, corresponding to the trajectory of the upper cylindrical body 190. It is fixed.

At this time, the position fixing bolt 163 and the bracket 165 is preferably fixed to the inner surface of the main body 190. This is to prevent the fixing bolt 163 and the bracket 165 from being exposed to the outside of the main body 190 while facilitating the coupling and disassembly of the main body 190.

Therefore, the main body 190 is separated into two or more can be formed in the main body 190 by the fixing bolt 163 fixed to each boundary portion 170 is coupled by a nut through the bracket 165.

In addition, when the plate heat exchanger 10 is installed in a marine vessel, even if the place is narrow, the above inline filter 100 is separable and is not subject to restrictions due to installation and replacement.

In the present embodiment, the main body 190 is described as being separated into two or more, but is not necessarily limited thereto, and may be separated even more depending on the installation place.

10A and 10B illustrate a second embodiment in which the inline filter according to the present invention has a structure in which two or more separable parts are separated.

As shown in Figure 10, The main body 190 has at least one boundary 170 to be separated into two or more. One end of the boundary portion 170 of the main body 190 is provided with a bent end 103 inserted into the main body 190. The bent end 103 is fixed by the coupling of the coupling bolt 107 while being inserted into the other end having the boundary portion 170 of the main body 190.

At this time, At least one length adjustment of the coupling bolt 107 is coupled to the outer circumferential surface of the bent end 103 in the longitudinal direction of the main body 190 to enable the length adjustment of the main body 190 when two or more main bodies 190 are coupled. The ball 103a is formed.

In this case, the other end of the body 190 is inserted into the bent end 103, the coupling bolt 107 penetrates to the position corresponding to the length adjusting hole 103a, the length adjusting hole 103a of the bent end 103 It is preferable that the coupling hole 105 is formed so as to be coupled thereto.

In addition, the coupling bolt 107 is preferably a countersunk bolt, in order to prevent the head of the coupling bolt 107 from being exposed to the outer circumferential surface of the main body 190 in the state in which the fastening is completed.

Accordingly, the main body 190 separated into two or more can be adjusted to the length of the main body 170 while the coupling bolt 107 is selectively coupled according to the position of the length adjusting hole 103a formed in the bent end 103. Do.

11 is a view showing a third embodiment in which the inline filter according to the present invention has a structure capable of being separated into two or more.

As shown in FIG. 11, the main body 190 has at least one boundary 170 so as to be separated into two or more. One end of the boundary portion 170 of the main body 190 is provided with a bent end 103 ′ inserted into the main body 190, and the bent end 103 ′ is a boundary 170 of the main body 190. It is fixed by the combination of the variable adjusting bolt 113 and the variable adjusting nut 115 while being inserted into the other end having a).

At this time, the support 109 facing each other is fixed to the inner peripheral surface of each boundary portion 170 of the main body 190 by welding, in which case the support 109 is formed at least one on the inner peripheral surface of the boundary portion 170 It is preferable.

In addition, between the support 109 is provided with a spring 119 having its own elasticity, which is when the two or more main body 190 is coupled to the variable adjustment bolt 113 and the variable adjustment nut 115 is a support ( 109 is coupled to the length of the main body 190 by tightening or loosening the variable adjusting bolt 113 and the variable adjusting nut 115.

That is, the spring 119 has a restoring force against tightening or loosening of the variable adjusting bolt 113 and the variable adjusting nut 115 to enable the length adjustment of the main body 190.

In the present embodiment, the elastic member is described as an example of the spring 119, but is not necessarily limited as long as it has elasticity such as a washer or rubber.

Referring to the method in which the inline filter 100 of the present invention having the configuration as described above is installed in the plate heat exchanger 10 is as follows.

12 is a flowchart sequentially illustrating a process in which the inline filter according to the present invention is installed in a plate heat exchanger.

As shown in FIG. 12, in the installation process of the inline filter 100, a pair of fixing rings 120 are formed at both ends of the upper side by fixing pins 123, and an elastic band 300 is disposed below. A plurality of elastic members are fixed to the elastic band 300, and preparing a rectangular perforated plate 110 formed of a plurality of perforated holes 21 or meshes (S1); Rolling and overlapping the perforated plate 110 to form a cylindrical body 190 (S2); Fixing the upper side of the main body 190 by inserting a fixing pin 123 into the fixing ring 120 (S3); Opening the airtight cover 50 installed at the other end of the cooling water inlet 13 to open the main body 190 into the cooling water inlet 13 of the heat exchanger plate 11 installed inside the plate heat exchanger 10. Inserting and laying down (S4); Removing the fixing pin (123) from the fixing ring (120) to release the fixing of the upper side of the main body (190) (S5); And step (S6) to close the main body 190 to the cooling water inlet hole while the elastic member is pressed by the closing of the sealing cover (50); .

Since the inline filter 100 installed in the plate heat exchanger 10 through the above steps is installed to be in close contact with the cooling water inlet hole 13 of the heat transfer plate 11 of the plate heat exchanger 10, no warpage occurs. Also, it is easy to install and disassemble without welding, maximizing the service life. As the inline filter 100 is decomposed, space utilization according to the installation space is possible.

A pair of fixing rings 120 are fixed to both ends of the upper side by the fixing pins 123, and an elastic band 300 is provided on the lower side thereof, and a plurality of elastic members are fixed to the elastic band 300. In operation S1, the rectangular perforated plate 110 formed of a plurality of perforated holes 21 or meshes may be prepared before forming the cylindrical body 190 of the inline filter 100.

A rectangular perforated plate 110 having a plurality of perforated holes 21 is prepared.

The perforated hole 21 is in a state penetrating the surface of the perforated plate 110, is formed to be distributed on the entire surface of the perforated plate 110.

At this time, the pair of fixing ring 120 is installed on both upper ends of the perforated plate 110, it is fixed through the fixing pin 123 when the perforated plate 110 is overlapped through the rolling.

In addition, the elastic band 300 is installed on the lower side of the perforated plate 110, and the elastic force is added to the outside of the perforated plate 110 in a state in which the perforated plate 110 is rolled and overlapped.

The elastic member is fixed to the elastic band 300 is in close contact with the main body 190 when the main body 190 is placed in the cooling water inlet hole (13).

Next, in the step S2 of forming the cylindrical body 190 by rolling and overlapping the perforated plate 110, the prepared perforated plate 110 is rolled through a separate rolling molding machine (not shown). ) To form.

First, the rectangular perforated plate 110 prepared as described above is passed through a rolling molding machine (not shown). In this case, the perforated plate 110 is rolled in a cylindrical shape while passing through a rolling molding machine to overlap and have a cylindrical shape. At this time, the rolled perforated plate 110 is not in a state of a complete cylindrical shape by the return force to be restored to the original of the perforated plate 110.

At this time, the pair of fixing ring 120 is installed on the inside of the upper both ends of the perforated plate 110, the state just before facing each other as the above perforated plate 110 does not form a complete cylindrical shape by the overlap to be.

In addition, the elastic bed 300 is also formed in the same shape as the shape of the main body 190 while being rolled along the molding curve with the perforated plate 110.

At this time, the leaf spring 400 is in a state before being fixed to the elastic band 300, it is preferable to be fixed after the rolling of the elastic band 300.

Next, the step (S3) of fixing the upper side of the main body 190 by inserting the fixing pin 123 to the fixing ring 120, is to maintain the complete cylindrical shape of the upper side of the overlapping main body 190 .

First, the overlapping cylindrical body 190 is pressed from the outside to maintain a complete cylindrical shape. In this case, the pair of fixing rings 120 are in a state where they overlap on the same horizontal line. In this state, the fixing pins 123 are fitted to the pair of fixing rings 120 to maintain the overlapped state of the main body 190.

At this time, the overlapped diameter of the upper side of the main body 190 is preferably formed smaller than the diameter of the cooling water inlet hole (13). This is to make it easy to be placed when the inline filter 100 is placed in the coolant inlet (13).

In addition, the upper side of the main body 190 maintains a cylindrical shape while the fixing ring 120 is fixed by the fixing pin 123 to prevent the release of the pressing force even when the applied pressing force is released.

Next, the airtight cover 50 installed at the other end of the cooling water inlet 13 is opened to the inside of the cooling water inlet 13 of the heat exchanger plate 11 installed in the plate heat exchanger 10. In step S4 of inserting and placing 190, first, the sealing cover 50 is opened.

Thereafter, the main body 190 is inserted into the cooling water inlet hole 13 in the rear of the plate heat exchanger 10, that is, the sealing cover 50 is fixed. At this time, since the upper side of the main body 190 is already formed smaller than the diameter of the cooling water inlet hole 13, the lower side of the main body 190 is pushed while overlapping by applying a pressing force.

In this case, the pressing force applied to the lower side of the main body 190 can be achieved by the worker holding the handle 310 and overlapping the main body 190.

When the body 190 is placed, the operator releases the pressing force applied to the handle 310. In this case, the lower side of the main body 190 is in close contact with the cooling water inlet hole 13 by the force to return to the original.

At this time, the upper side of the main body 190 is not in close contact with the inside of the cooling water inlet (13).

Next, the step of removing the fixing pin 123 from the fixing ring 120 to release the fixing of the upper side of the main body 190 (S5), the upper side of the main body 190 is the cooling water inlet hole 13 ) Is a step in close contact with the inside.

The fixing pin 123 fitted to the upper side of the main body 190 is removed. In this case, as the upper side of the main body 190 removes the force for fixing the pair of fixing rings 120, the force is applied to the main body 190 to release the force to be released as it is, the diameter of the overlap is expanded. .

Precisely, as the pressing force applied to the upper side of the main body 190 is released, the diameter of the overlapping upper side becomes large so that the upper side of the main body 190 closely adheres to the cooling water inlet hole 13 of the upper plate heat exchanger 10. Will be.

Due to the above steps, the upper and lower sides of the main body 190 are in close contact with the cooling water inflow hole 13.

Next, while the elastic member is pressed by the closing of the sealing cover 50 to close the main body 190 to the cooling water inlet hole (S6), the in-line filter 100 that is the main body 190 It is in close contact with the transverse direction (length direction) and is the step of completing the installation inside the cooling water inlet (13).

The cooling water inlet hole 13 is sealed by fixing the sealing cover 50 in a state in which the main body 190 is placed in the cooling water inlet hole 13. At this time, while the sealing cover 50 is fixed, the contact portion 400a is pressed while making contact with the contact portion 400a of the leaf spring 400.

In this case, the main body 190 is completely in the horizontal direction in the interior of the cooling water inlet hole 13 by the pressing force transmitted through the contact portion 400a of the leaf spring 400.

Thereafter, when the sealing cover 50 is fixed, the main body 190 is always kept in close contact with the pressing force transmitted to the contact portion 400a of the leaf spring 400 continuously.

As described so far, the inline filter 100 and the installation method for the plate heat exchanger 10 of the present invention are easy to be manufactured and installed by preventing warpage in the inline filter 100 and not welding. There is one effect.

In addition, since the inline filter 100 can be divided, replacement or repair is easy, and space can be utilized at the time of installation.

As mentioned above, although this invention was demonstrated through the preferable Example, this is an objective to help understanding of this invention, and is not intended to limit the technical scope of this invention to this.

Those skilled in the art will appreciate that various modifications and variations can be made without departing from the spirit of the present invention.

For example, the structure of the fixing ring 120 of the circular retaining member 200, the number and shape of the leaf spring 400, the thickness and width of the circular retaining member 200 'and the size of the flow path 233, the perforated plate 110 ), The shape of the perforation hole 21 and the mesh formed in the perforated plate 110, the structure of the separation prevention member 150, the number and coupling method of the body 190 forming the inline filter 100, the type of elastic member Etc. cannot be used as a criterion for determining the technical scope of the present invention, and is only defined by the claims.

1 is a perspective view showing a conventional inline filter.

Figure 2 is a longitudinal sectional view of the main portion showing a state in which a conventional in-line filter is mounted on a plate heat exchanger.

Figure 3 is a longitudinal sectional view of the main part showing a state in which the in-line filter according to the first embodiment of the present invention is mounted on a plate heat exchanger.

4 is a view showing a state before overlapping the perforated plate according to the first embodiment of the present invention.

Figure 5a is a perspective view showing a state in which the main body overlapped by the fixing ring of the configuration of the in-line filter according to the first embodiment of the present invention.

Figure 5b is a perspective view showing a state in which the elastic band and the leaf spring is fixed to the body of the inline filter according to the first embodiment of the present invention.

Figure 6a is a perspective view showing a circular retaining member fixed to the upper side of the perforated plate of the configuration of the in-line filter according to the first embodiment of the present invention.

Figure 6b is a perspective view showing a state in which the circular retaining member of 6a is fixed to the upper side of the perforated plate.

Figure 7a is a perspective view showing a state in which the spacer is formed in the circular retaining member fixed to the upper side of the perforated plate of the configuration of the in-line filter according to the first embodiment of the present invention.

Figure 7b is a longitudinal sectional view of the main portion showing a state in which the circular retaining member of Figure 7a is fixed to the main body.

8a to 8c are views showing a state in which the separation prevention member is provided in the inline filter according to the second embodiment of the present invention.

9A and 9B show a first embodiment in which the inline filter according to the present invention has a structure capable of separating at least two.

10A and 10B illustrate a second embodiment in which the inline filter according to the present invention has a structure capable of separating at least two.

11 is a view showing a third embodiment in which the inline filter according to the present invention has a structure capable of being separated into two or more.

12 is a flowchart sequentially illustrating a process in which the inline filter according to the present invention is installed in a plate heat exchanger.

<Explanation of symbols for the main parts of the drawings>

10 plate heat exchanger 11: heat transfer plate

13: coolant inlet 20,100: inline filter

21: perforation hole 23,190: main body

25: flange portion 30: cooling water inlet pipe

40: fixed cover 50: airtight cover

103,103 ': Bending end 103a: Length adjusting hole

105: coupling hole 107: coupling bolt

109: support 110: punched plate

113: variable adjusting bolt 115: variable adjusting nut

119: spring 120, 210: fixing ring

123: fixed pin 130: adjustment bracket

133: adjustment bolt 135: adjustment nut

140: in-line band 150: separation prevention member

153: departure prevention groove 163: position fixing bolt

165 Bracket 165a Fixing Hole

170: boundary 200: circular holding member

230: spacing protrusion 233: euro

300: elastic band 310: handle

400: leaf spring 400a: contact portion

400b: fixed part

Claims (14)

Inserted into the coolant inlet hole 13 formed by the plurality of heat transfer plates 11 stacked between the coolant inlet pipe 30 and the sealing cover 50, and included in the fluid that is exchanged while flowing between the heat transfer plates 11. In the in-line filter 100 for the plate heat exchanger 10 for filtering the collected dirt, A rectangular perforated plate 110 having a plurality of perforated holes 21 formed by rolling to form a cylindrical body 190; A pair of fixing rings (120) installed at both upper ends of the perforated plate (110) and fixed by a fixing pin (123) when the perforated plate (110) is rolled and overlapped; An elastic band 300 fixed to a lower inner circumferential surface of the perforated plate 110 to add an elastic force to the outside of the perforated plate 110 in a radial direction when the perforated plate 110 is rolled and overlapped; And One side is in contact with the sealing cover 50 and the other side is fixed to the inner circumferential surface of the elastic band 300 is a plurality of elastic members 400 to be pressed in the longitudinal direction of the cylindrical body 190, the cooling water inlet hole 13 ); Inline filter 100 for a plate heat exchanger (10) configured to include a. The method of claim 1, The main body 190 has at least one boundary 170 so that it can be separated into two or more, the boundary 170 is plate heat exchange, characterized in that coupled by the fixing bolt 163 and the bracket 165 Inline filter 100 for machine 10. The method of claim 1, The bent end 103 having at least one boundary 170 so that the main body 190 can be separated into two or more, and one end of the boundary 170 of the main body 190 is inserted into the main body 190. Is provided with the bent end 103 is coupled by the coupling bolt 107, in-line filter (100) for the plate heat exchanger (10). The method of claim 1, The bent end 103 having at least one boundary 170 so that the main body 190 can be separated into two or more, and one end of the boundary 170 of the main body 190 is inserted into the main body 190. ') Is provided with the bent end 103' is coupled by the variable control bolt 113 and the variable control nut 115, in-line filter 100 for the plate heat exchanger (10). The method of claim 4, wherein Supports 109 facing each other are fixed to the inner circumferential surfaces of the boundary portions 170 of the main body 190, and springs 119 are provided between the supports 109 so that two or more main bodies 190 are coupled to each other. Inline filter 100 for a plate heat exchanger 10, characterized in that the length of the main body 190 is adjusted while the variable adjusting bolt 113 and the variable adjusting nut 115 are coupled through the support 109. The method of claim 3, On the outer circumferential surface of the bent end 103 At least one length adjusting hole (103a) is coupled to the coupling bolt 107 in the longitudinal direction of the main body 190 to enable the length adjustment of the main body 190 when two or more main body 190 is coupled. In-line filter 100 for plate heat exchanger (10). The method according to any one of claims 1 to 4, When the perforated plate 110 is overlapped by rolling at both ends of the perforated plate 110 to form the cylindrical body 190, it is fixed to the upper inner surface by the fixing pin 123 to maintain the overlapped state. Inline filter (100) for plate heat exchanger (10), characterized in that it further comprises a circular retaining member (200) formed integrally with a pair of fixing rings (210) fixed. The method of claim 7, wherein On the outer circumferential surface of the circular holding member 200 protrudes radially along the outer circumferential surface so as to be spaced apart from the inner circumferential surface of the main body 190 when the circular holding member 200 is fixed to the upper inner circumferential surface of the cylindrical body 190, the circular holding member Inline filter (100) for plate heat exchanger (10), characterized in that a plurality of separation protrusions (230) are formed to form a flow path (233) to allow cooling water to pass between the (200) and the perforated plate (110). The method according to any one of claims 1 to 4, The elastic member is a leaf spring 400 consisting of a fixed contact portion 400a fixed to the inner circumferential surface of the elastic band 300, the other side is curved contact portion (400a) to be in contact with the sealing cover 50 Inline filter 100 for plate heat exchanger (10), characterized in that. The method according to any one of claims 1 to 4, The inline filter for the plate heat exchanger 10, characterized in that the left end of the perforated plate 110 is further provided with a departure prevention member 150 formed with a departure prevention groove 153 for receiving the left end when rolling. 100). The method according to any one of claims 1 to 4, The perforated plate 110, the fixing ring 120, the circular retaining member 200, the elastic band 300, the material of the elastic member is inline filter for the plate heat exchanger 10, characterized in that the titanium (titanium) or stainless 100. The method according to any one of claims 1 to 4, In-line filter (100) for plate heat exchanger (10), characterized in that the surface of the main body (190) is formed of a mesh. The method according to any one of claims 1 to 4, Inline filter (100) for the plate heat exchanger (10), characterized in that at least one handle 310 is further provided on the inner surface of the elastic band (300). Inserted into the coolant inlet hole 13 formed by the plurality of heat transfer plates 11 stacked between the coolant inlet pipe 30 and the sealing cover 50, and included in the fluid that is exchanged while flowing between the heat transfer plates 11. In the installation method of the in-line filter 100 for the plate heat exchanger 10 for filtering the dirt, A pair of fixing rings 120 are fixed to both ends of the upper side by the fixing pins 123, and an elastic band 300 is provided on the lower side thereof, and a plurality of elastic members are fixed to the elastic band 300. Preparing a rectangular perforated plate 110 formed of a plurality of perforated holes 21 or meshes (S1); Rolling and overlapping the perforated plate 110 to form a cylindrical body 190 (S2); Fixing the upper side of the main body 190 by inserting a fixing pin 123 into the fixing ring 120 (S3); Opening the airtight cover 50 installed at the other end of the cooling water inlet 13 to open the main body 190 into the cooling water inlet 13 of the heat exchanger plate 11 installed inside the plate heat exchanger 10. Inserting and laying down (S4); Removing the fixing pin (123) from the fixing ring (120) to release the fixing of the upper side of the main body (190) (S5); And The elastic member is pressed by the closing of the sealing cover 50 to bring the main body 190 into close contact with the cooling water inlet hole (S6); Installation method of the in-line filter 100 for a plate heat exchanger 10 including a.

Images