KR101102182B1 - module type heat exchangers - Google Patents

Abstract

The present invention includes: casings 40 and 40 'forming heat exchange zones; The first header 13 in which the fluid inlet 12 is formed, the second header 14 disposed to face the first header 13, and the first header 13 on the outermost side from the fluid inlet 12. Alternatively, the fluid outlet 17 formed at any one of the second headers 14 and the fluid flow path may be partitioned, and any one of the first header 13 or the first header 13 and the second header 14 may be used. Flow path plate (19, 19 ') configured in the selection portion of the heat transfer tube support member 22 disposed between the first header 13 and the second header 14 and forming a plurality of through holes, and through holes One end is connected to the first header 13 and the other end is connected to the first header 13 and the second header 14 through a heat pipe made of a plurality of straight pipes connected to the second header 14 through the through. A ladder heat exchanger module composed of a pair of frames; A plurality of rails fixed to the casing and guiding the support and entry of the heat exchanger module; It is formed in the casing, and includes an opening through which the heat exchanger module enters and exits, and the heat pipe is made of any one of an oval or a peanut type having a long diameter whose cross section has a larger heat transfer surface area, and the heat pipe prevents freezing. The heat exchanger module is arranged to have a gradient within 5% in the flow direction of the fluid so as to smoothly drain the fluid in the heat transfer tube, and the heat exchanger module includes a horizontal heat exchanger in which the first header and the second header are horizontally disposed in the casing. The modules 10a and 10c or the vertical heat exchanger module 10b disposed vertically, and the plurality of heat exchanger modules configured in the casing are extended and connected in either the vertical or horizontal direction. Provided is a modular heat exchanger. Accordingly, it is easy to manufacture, and it is easy to transport, assemble and dismantle by expanding connection of a plurality of heat exchanger modules, and in case of damage such as freezing, only heat exchanger module having the damaged part can be removed and repaired. It is easy to repair and has a long diameter heat pipe, which can expand the heat transfer surface area and improve heat exchange efficiency, reduce the flow resistance of the fluid flowing in the heat pipe, and reduce maintenance costs. Type heat exchanger can be provided.

Heat exchanger, heat pipe, heat fin, filler

Description

Modular heat exchangers

The present invention relates to a heat exchanger for cooling, cooling and condensing or heating a fluid, and more particularly, to a modular heat exchanger comprising connecting a plurality of heat exchanger modules of a structure that is easily connected and separated in a heat exchanger casing. It is about.

Generally, a heat exchanger is a device for transferring heat from a high temperature fluid to a low temperature fluid through a heat transfer wall. The heat exchanger is widely used for cooling, condensing, and heating a fluid. The fluid to be used may be classified into a liquid fluid such as cooling water or a refrigerant flowing in the heat transfer tube, a liquid fluid such as cooling water flowing in the outer surface of the heat transfer tube, and a gas fluid of air flowing through the outer surface of the heat transfer tube.

And the classification according to the heat transfer method of the heat exchanger,

Heat exchanger is a type of heat exchanger in which a fluid having a different temperature flows in a space separated by a heat transfer wall and is transferred by heat conduction and fluid convection on the surface of the heat transfer wall. A multi-tube heat exchanger, a double-pipe heat exchanger, and a multi-faceted surface heat exchanger (suface) heat exchanger),

As a heat exchanger that absorbs heat from a high temperature fluid by contacting a solid heat storage agent (medium for storing heat) with heat, and then transfers heat to the low temperature fluid, a rotary heat storage heat exchanger and a valve annular Regenerative heat exchanger,

Liquid-coupled indirect-type exchanger, which circulates the heating medium in two surface heat exchangers,

Direct-contact heat exchangers are used to heat the two fluids in direct contact.

In addition, the classification on the use of a heat exchanger is

Evaporative cooling tower (evaporative cooling tower), air cooled (air cooled cooler), refrigerant condenser (condenser), heater (heater), evaporator (evaporator), preheater (preheater) and the like.

And the heat transfer pipe structure of the tube (tube),

A serpentine type heat transfer pipe formed by continuously bending a curved portion (“U” shape) and a straight portion between the fluid inflow header and the fluid outflow header,

A serpentine type heat transfer pipe formed by welding a U-bend between the straight pipe portion and the end of the straight pipe portion between the fluid inflow header and the fluid outflow header;

There is a straight heat transfer tube constituting a straight pipe between the fluid inflow header and the fluid outflow header.

In addition, a heat exchanger in which a fluid of a liquid, such as cooling water, flows out of a heat pipe and heat exchanges, generally constitutes a heat pipe of a bare tube.

Heat exchangers, in which air fluid flows out of heat pipes and heat exchanges, generally form heat transfer fins in the heat pipes.

And the heat transfer tube is generally composed of a copper tube (copper tube), but may also be composed of a stainless tube (stainless tube) or hot-dip galvanized steel tube (hot-dip galvanized steel tube).

The following is a description of a patent document Korean Patent Publication No. 10-0373314 (closed circuit heat exchange system and method for reducing water consumption), which the present invention is cited as a known technology, with reference to the accompanying drawings. do.

FIG. 13 is a schematic side view of a conventional integrated wet heat exchanger, and FIG. 14 is a schematic front view of FIG. 13. As shown in these figures, the prior art discloses that each individual circuit 238 in a single coil assembly 236 consists of coil tubes of a single continuous length, which may comprise several U-shaped AE tubes. Through the bending work to form, the circuits 238 are consequently configured to maintain equal spacing vertically with respect to each other by providing respective circuits 238 of the quadrangular shape, and all these circuits 238 are fluid discharge header 240 and fluid inflow. It is connected to the header 242.

Such a sand-shaped individual circuit 238 may increase the flow resistance of the fluid flowing into the heat pipe because there are a plurality of bent portion.

In addition, the weight of a single coil assembly manufactured by galvanized steel pipe, which is usually mounted in a closed cooling tower, is, for example, about 200 CRT (780,000 kcal / hr) at 27 ° C wet bulb temperature, 32 ° C cooling inlet temperature, and 37 ° C cooling outlet temperature. 4.7 ton.

Even assuming that such a single coil assembly is manufactured in two parts and installed, the weight per unit reaches 2.35 tons.

Therefore, the coil assembly of such a weight cannot be mounted, separated and taken out of the cooling tower without mobilization of heavy equipment,

Due to the structure of assembling and disassembling, the manufacturing cost increases due to the structure of dividing manufacturing and assembling into the casing of the fan and the casing of the coil.

When repairing by freezing or damage of coils or removing contaminants on the coil surface, remove the casing of the coil from the casing of the fan, repair the coil assembly by separating the coil assembly from the casing of the coil, and then reassemble in reverse order of separation. As the difficulty of work and excessive repair cost are incurred, and the coil (individual circuit) is damaged inside the coil assembly, it is impossible to repair it. Therefore, the coil assembly must be replaced with new products. There is such a problem.

Such a problem may occur even when the coil (individual circuit) is manufactured from a copper tube or a stainless steel tube.

15 is a schematic perspective view of a conventional integrated dry heat exchanger. As shown in the figure, the dry indirect contact heat exchanger 316 is provided with a fluid circuit 322, an inlet header 324 and an outlet header 325, and a plurality of tubes 326, each of which has a tube. Constitutes a plurality of fins 327 connected to the outside of the tube.

Although not described in the detailed description, the dry indirect contact heat exchanger 316 may include a curved tube U at an end of the tube 326 and the tube 326 of the straight pipe between the inflow header 324 and the discharge header 325. As a structure of a serpentine fluid circuit 322 formed by welding -bend, it can be seen that it is the same as the heat exchanger mounted on an air conditioner or the like and its structure.

Since the sand fluid circuit 322 has a plurality of bends, the flow resistance of the fluid flowing into the fluid circuit 322 may increase.

When repairing by freezing or breaking of the fluid circuit 322 or removing contaminants on the surface of the fluid circuit 322, the main body of the dry indirect contact type heat exchange part 316 is removed from the casing of the cooling tower, and repaired. As a reassembly structure in the reverse order, there is a problem in that the difficulty of work and excessive maintenance cost.

The present invention is to solve the above conventional problems,

An object of the present invention is a ladder heat exchanger module structure that directly connects the heat pipes of the straight pipe to each header, and is easy to manufacture, and is easy to carry, assemble and dismantle by expanding and connecting the plurality of heat exchanger modules, It can be repaired by separating and carrying out only the heat exchanger module with the damaged part in case of damage, etc., and it is easy to repair, and it is possible to increase heat transfer area and improve heat exchange efficiency by constructing a heat pipe with a long diameter. It is to provide a modular heat exchanger that can reduce the flow resistance of the flowing fluid, and can reduce the maintenance cost.

The present invention to achieve the above object, the casing (40, 40 ') forming a heat exchange area; A first header 13 in which the fluid inlet 12 is formed, a second header 14 disposed to face the first header 13, and a first header outermost from the fluid inlet 12 ( 13 and the fluid outlet 17 formed at any one of the second header 14 and the fluid flow path, and the first header 13 or the first header 13 and the second header 14. ), A heat transfer pipe support member 22 disposed between the flow path partition plates 19 and 19 'configured at any one of the selection units and the first header 13 and the second header 14 and forming a plurality of through holes. And a heat transfer tube formed of a plurality of straight pipes connected to the first header 13 and the other end connected to the second header 14 through the through hole, and the first header 13. And ladder heat exchanger module consisting of a pair of frames coupled to the second header 14; A plurality of rails fixed to the casing and guiding the support and the entry and exit of the heat exchanger module; The heat exchanger module is formed in the casing, and includes an opening through which the heat exchanger module enters and exits. The heat transfer tube is formed of any one of an oval or peanut type having a long diameter in which a cross section of the heat transfer surface is enlarged. And a means for preventing freezing, and having a gradient of less than 5% in a flow direction of the fluid so as to smoothly drain the fluid in the heat transfer pipe, wherein the heat exchanger module has the first header and the second header horizontally in the casing. The heat exchanger module (10a, 10c) is arranged in any one of the vertical heat exchanger module (10b) arranged vertically, the plurality of heat exchanger module configured in the casing, any one of the vertical or horizontal It provides a modular heat exchanger characterized in that the expansion is connected in the direction of.

Here, the heat exchanger module is, for example, preferably mounted on the casing 40 of the machine (equipment) on which the heat exchanger is mounted, but may be mounted by providing a separate heat exchanger casing 40 '.

Next, the first header and the second header is preferably rectangular in cross section so that one side is in close contact with the casing surface, but may be applied to other shapes such as hexagon and octagon.

The fluid inlet of the first header may be configured at the outermost side (or remotely) from the fluid outlet of the second header in order to balance the inflow and outflow of the fluid flowing through the heat transfer tube. Alternatively, the fluid outlet formed at any one of the second headers is preferably configured at the outermost (or remote) side from the fluid inlet.

When the fluid flow path is two passes, one flow path plate is formed in the first header, and when the fluid flow path is three passes or more, a plurality of flow paths corresponding to the number of passes. Preferably, the diaphragm is configured in the first header and the second header.

Next, the pair of frames constitute a plurality of fixing brackets having a plurality of bolt holes on both sides of the first header and the second header in the longitudinal direction or on the upper and lower portions of the first header and the second header in the longitudinal direction. It is preferable to fix by bolting, but may be fixed by welding.

Next, it is preferable that the heat transfer tube support member is configured by one or more so that a plurality of heat transfer tubes connected between the first header and the second header do not sag.

The through hole formed in the heat transfer tube support member may further include a rubber ring for receiving the heat transfer tube to protect the surface of the heat transfer tube and having an insertion groove inserted into the through hole along an outer circumferential surface thereof.

And at both ends of the heat transfer tube support member, it is preferable to further include a coupling portion fixed to the frame and having a plurality of bolt holes, a plurality of bolt holes in the pair of frames to match the bolt holes of the coupling portion It is preferable to form.

Next, the heat pipe is preferably arranged to have a gradient within 2 to 5% in the flow direction in order to prevent the retention of the fluid in the heat pipe during drainage, as a drainage means for preventing freezing in winter.

The heat transfer pipe is preferably a peanut or oval tubular body having a longer diameter in which the heat transfer surface area is larger than that of a conventional circular heat transfer tube. However, the heat transfer tube may be applied to a tubular body having another shape.

The heat transfer tube may further include a depression having a curved surface that retards the direct flow of the fluid such as cooling water flowing through the outer surface of the heat transfer tube on one side or both sides in the longitudinal direction of the heat transfer tube to increase the contact between the fluid and the heat transfer tube surface. It is preferable.

Here, the depression is preferably formed in the drawing process of the heat pipe.

In the heat pipe having a long diameter, in a structure in which a liquid fluid such as cooling water and a fluid of gas such as air flow to face each other, the long diameter central axis is preferably vertically disposed in the flow direction of the liquid (or gas) fluid. In a structure in which a fluid such as a fluid and a gas such as air flow at right angles to each other, a long diameter central axis in the flow direction of the gas fluid is in a range of 30 to 60 ° (a2) inward from a vertical plane of the first and second headers. It is preferable to arrange inclined or inclined within the range of 100 ~ 130 ° (a1), but the inclination angle of the long diameter central axis can be adjusted to reduce the flow resistance of the fluid and to enlarge the heat exchange contact surface.

The heat pipes coupled to the first header and the second header are preferably arranged in two rows (or two stages), but may be arranged in one row (or one stage), or more than three rows (or three stages). It can also be placed.

Next, the heat transfer tube through which the fluid of the gas flows on the outer surface preferably further includes a plurality of heat transfer fins formed of aluminum (or copper) thin plates in order to improve thermal conduction efficiency.

In addition, the heat transfer pipe in which the liquid fluid flows on the outer surface may further include a plurality of heat transfer fins formed of a galvanized iron plate or a stainless plate having corrosion resistance to improve heat conduction efficiency.

Next, in the heat exchanger structure in which air fluid flows vertically, the heat exchanger module preferably constitutes a horizontal heat exchanger module in which the first header and the second header are horizontally disposed in the casing. In the heat exchanger structure in which the horizontal flows, it is preferable to configure a horizontal heat exchanger module in which the first header and the second header are vertically disposed in the casing.

Next, the rail is preferably composed of a pair of rails (25a) to each support the pair of frames coupled to the horizontal heat exchanger module, the vertical heat exchanger module, the first header It is preferable to comprise two pairs of rails 25b so as to support the edges of the slopes of the 13 and the second header 14.

And it is preferable that the horizontal heat exchanger module further comprises one or more fixing bolts to fix the frame to the rail.

The vertical heat exchanger module may further include one or more brackets and fixing bolts fixing the first header and the second header to the rail.

The plurality of rails may be configured to further include a support beam and a support pillar for vertically and horizontally supporting the rails.

Next, it is preferable that the pair of frames 21 'provided on the upper portion of the vertical heat exchanger module have an inclined portion for guiding falling cooling fluid (cooling water) to the region of the heat transfer tube.

Next, the opening through which the horizontal heat exchanger module enters and exits is sized to allow access to the casing horizontally, and the opening through which the vertical heat exchanger module enters and exits the casing vertically. It is desirable to form the casing in such a size as to enable it.

And a through hole through which the fluid inlet (or the connecting part) and the fluid outlet (or the connecting part) penetrate, a through hole through which the fluid inlet penetrates in the center, and seals the through hole. Forming a through-hole through which the fluid inlet penetrates in the center and the fluid outlet side sealing plate for sealing the through-hole, it is preferably configured to further comprise an opening and closing portion consisting of a flange having a plurality of bolt holes along the periphery Preferably, the sealing plate is assembled into two semicircle plates.

Here, it is preferable that the opening further comprises a flange facing the opening / closing flange.

In addition, the opening is preferably provided with a flange for forming a plurality of bolt holes along the outer periphery.

The vertical heat exchanger module preferably uses an air supply port for introducing air into the casing as an opening 41 ′ through which the vertical heat exchanger module enters and exits without forming a separate opening.

Here, a louver may be formed in the opening 41 ′ to smoothly guide the air supply.

Next, the vertical heat exchanger module further includes a fluid inflow connection header having a plurality of connection parts connecting to the connection part of the fluid inlet, and a fluid outlet connection header having a plurality of connection parts connecting to the connection part of the fluid outlet. It is preferable that the expansion connection.

Next, the plurality of horizontal heat exchanger modules configured in the casing are preferably extended in the vertical direction, but may be extended in the horizontal direction.

Next, the plurality of vertical heat exchanger modules configured in the casing are preferably extended in the horizontal direction, but may be extended in the vertical direction.

Next, the heat exchanger module preferably has a structure in which the expansion connection of the fluid inlet connection part and the fluid outlet connection part is made in the casing, but may be connected to the outside of the casing if necessary.

In this case, the connecting portion is preferably a flange, but may be applied to other types of connecting portions such as mechanical joints.

And it is preferable that a sealer (sealer) is placed on the connection portion.

Next, the heat exchanger module has a structure in which a plurality of heat exchanger loads which are easily manufactured, transported, assembled and dismantled are divided into a plurality, and the heat exchanger module which is manufactured to have heat exchange capability of the divided loads is continuously expanded and assembled. Preferably, in the casing, it is preferable that the heat exchanger module and the rail are configured in plural.

Next, any one of the top or bottom of the heat exchanger module, further comprises a filler (film type or droplet type) for dispersing the fluid to cool and drop the fluid (cooling water) for the heat exchange while flowing the outer surface of the heat transfer tube. It is preferable to configure.

According to the present invention, as a ladder-shaped heat exchanger module structure directly connecting the heat pipes of the straight pipe to each header, it is easy to manufacture, easy to transport, assemble and dismantle work by expanding the connection of a plurality of heat exchanger modules, It is easy to repair and repair heat exchanger module that has the damaged part in case of damage, and it is easy to repair, and it is possible to increase heat transfer surface area and improve heat exchange efficiency through the configuration of heat pipe with long diameter. It is possible to provide a modular heat exchanger that can reduce the flow resistance of the fluid to reduce the maintenance cost.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Prior to the description, the objects, features and advantages of the present invention, and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings, and accordingly, Those skilled in the art will be able to easily practice the present invention. In the following description of the present invention, a detailed description of functions and functions of the known technology that may unnecessarily obscure the subject matter of the present invention will be omitted.

In various embodiments, components having the same configuration will be described in one embodiment by applying the same reference numerals, and in other embodiments, only the configuration different from the embodiment will be described.

1 is a schematic side view of a modular heat exchanger according to a first embodiment of the present invention, FIG. 2 is a schematic partial cutaway front view of FIG. 1, FIG. 3 is a schematic plan view of FIG. 1, and FIG. 4 is 1 is a schematic side view of a cooling tower in which the modular heat exchanger of FIG. 1 is disposed. As shown in these figures, the first embodiment of the present invention is a configuration and an example of a modular heat exchanger 1a having a plurality of horizontal heat exchanger modules 10a, which is applied to the counterflow cooling tower 2a. ,

A casing 40 forming a heat exchange region; An opening 41 'and a louver 45 provided in the casing to guide the air supply into the casing, a collecting tank 46, a cooling fluid outlet 61 provided in one region of the collecting tank 46, and a plurality of A spraying part 60a having a spraying nozzle (unsigned), a cooling fluid supply pipe 66 connected between the spraying part 60a and the cooling fluid outlet 61, and the cooling fluid supply pipe 66. Counterflow cooling tower (2a) composed of sprinkling pump (65), eliminator (70) for collecting water droplets scattered, and axial blower fan portion (80a) disposed at an exhaust port (not shown) provided at the upper part of the casing. ) Is provided.

Next, a first header 13 having a fluid inlet 12 having a connection portion 11 on one side thereof, a second header 14 arranged horizontally facing the first header 13, and A fluid outlet port 17 formed at the center of the first header 13 in the longitudinal direction of the first header 13 and the first header 13 on the outermost side from the fluid inlet port 12 and having a connection portion 18. ) And a plurality of bolt holes, coupled to the plurality of fixing brackets 20 provided on both sides of the first header 13 and the second header 14, and the fixing bracket 20 by bolting. A pair of frames 21 and a long axis of the central axis is arranged perpendicular to the flow direction of the air (or cooling water) fluid, one end is connected to the first header 13 and the other end is the second A plurality of heat transfer tubes 15a having depressions 16 connected to the header 14 are disposed between the first header 13 and the second header 14, and the plurality of heat transfer tubes 15a are disposed. Heat exchanger comprising a plurality of through holes (not shown) and the heat transfer tube support member 22 which is fixed by bolted to the frame 21 and the coupling portion (unsigned) having a plurality of bolt holes at both ends The base module 10a is provided.

Next, an opening 41 is provided at one side of the casing 40 so that the heat exchanger module 10a installed in a plurality may enter and exit.

Although not shown in the figure, the opening 41 further includes a flange having a plurality of bolt holes outside the opening 41.

In addition, as a means for closing the opening 41 after installation of the heat exchanger module 10a and opening the opening 41 when the heat exchanger module 10a is separated and unloaded, the fluid inlet side connection part ( 11) and a through hole (unsigned) through which the fluid outlet side connection part 18 passes, and a through hole (unsigned) through which the fluid inlet 12 penetrates, and seals the through hole (unsigned). A fluid inlet side sealing plate (not shown) and a through hole (unsigned) through which the fluid outlet port 17 penetrates in the center thereof, and a fluid outlet side sealing plate (unsigned) which seals the through hole (unsigned). And an opening and closing portion 42 formed along a periphery and formed with a flange (unsigned) forming a plurality of bolt holes.

Next, a pair of rails 25a are fixed to the inside of both casings 40 of the opening 41 so as to face the pair of frames 21 coupled to the heat exchanger module 10a. have.

Next, the heat transfer pipe 15a is a peanut-shaped structure having a long diameter in which the heat transfer surface area is further enlarged. For example, the heat transfer pipe 15a has one stage (between the first header 13 and the second header 14). Or one row), but may be arranged in more stages (or rows).

Next, the casing 40 is provided with a modular heat exchanger 1a in which four sets of heat exchanger modules 10a and rails 25a are vertically extended and arranged.

Next, the counterflow filler 30a, which is easily divided in and out, is disposed on the four sets of heat exchanger modules 10a.

Next, the assembly and disassembly according to the first embodiment of the present invention will be described.

First, four sets of rails 25a of the heat exchanger module 10a are fastened to the casing 40 at vertical intervals to continuously assemble four sets of bolts.

Then, four sets of frames 21 of the heat exchanger module 10a are supported on the rails 25a and carried into the casing 40 along the rails 25a.

Then, each of the fluid inlet side connecting portions 11 of the four heat exchanger modules 10a and the fluid outlet side connecting portion 18 are connected using the opening 41 as a working space.

Then, the opening and closing portion 42 is bolted to the opening 41 to close the opening 41, and the through portion through which the fluid inlet side connecting portion 11 and the fluid outlet side connecting portion 18 penetrates. Assembly and installation are completed by closing the space between the sphere and the fluid inlet 12 and the fluid outlet 17 by mounting a sealing plate (unsigned) with bolts (or screw members).

Next, when carrying out one or more of the four heat exchanger module (10a) for repair to the outside of the casing 40,

First, the sealing plate (unsigned) is removed.

Then, the opening and closing portion 42 is separated from the opening 41.

Then, the connection of each of the connecting portions 11 and 18 is separated through the opening 41.

Then, by carrying out the heat exchanger module 10a along the rail 25a to the outside of the casing 40, the separation and removal of the heat exchanger module 10a is completed.

Reassembly and installation after repair are the same as the initial assembly and installation procedure except for the mounting of the rail 25a.

FIG. 5 is a schematic partial cutaway side view of a modular heat exchanger according to a second embodiment of the present invention, FIG. 6 is a schematic front view of FIG. 5, and FIG. 7 is a schematic view of a cooling tower in which the modular heat exchanger of FIG. 5 is disposed. It is a side view. As shown in these figures, the second embodiment of the present invention is a configuration and an example of a modular heat exchanger 1b having a plurality of vertical heat exchange modules 10b, and is applied to a cross flow cooling tower 2b. Unlike the embodiment described above,

A casing 40 forming a heat exchange region; An opening 41 'provided in the casing to guide the air supply into the casing, a watering unit 60b composed of a plurality of watering holes (unsigned) and a watering tank (unsigned), a water collecting tank 46, and the Cooling fluid outlet 61 provided in one region of the sump, the cooling fluid supply pipe 66 connected between the watering unit 60b and the cooling fluid outlet 61, and the spraying water provided in the cooling fluid supply pipe 66 DC-type cooling tower 2a composed of a pump 65, an eliminator 70 for collecting water droplets scattered, and an axial blower fan 80a disposed at an exhaust port (unsigned) provided in the upper portion of the casing. This is provided.

Next, a first header 13 having a fluid inlet 12 having a connecting portion 11 on one side thereof, a second header 14 disposed perpendicularly to the first header 13, and The fluid outlet port 17 which is provided in the flow path plate 19 provided in the center of the longitudinal direction of the 1st header 13, and the 2nd header 14 outermost from the said fluid inflow port 12, and has the connection part 18 is provided. ), A flow path plate 19 'provided in one region in the longitudinal direction of the second header 14, and a plurality of bolt holes, each of the first header 13 and the second header 14 A plurality of fixing brackets 20 respectively provided on the upper and lower portions, and an inclination for guiding the falling cooling fluid (cooling water) coupled to the fixing bracket 20 provided on the upper portion and bolted to the area of the heat transfer pipe 15b. A pair of frames 21 'having a portion (unsigned), a pair of frames 21 coupled to the fixing bracket 20 provided at the lower portion by bolting, and an air fluid The central axis of the long diameter in the same direction is inclined in the range 30 ~ 60 ° (a2) inward or outward 100 ~ 130 ° (a1) in the vertical plane of the first header and the second header, one side end is A plurality of elliptical heat pipes 15b connected to the first header 13 and connected to the second header 14, and disposed between the first header 13 and the second header 14, and Heat transfer tube support consisting of a plurality of through holes (not shown) through which the plurality of heat transfer tubes 15b pass, and coupling portions (unsigned) having a plurality of bolt holes at both ends and fixed by bolting to the frame 21. The heat exchanger module 10b including the member 22 is provided.

Next, the openings 41 ′ provided at both sides of the casing 40 are provided so that the front outer periphery of the heat exchanger module 10b provided in the casing 40 can enter and exit. .

After the heat exchanger module 10b is installed, the opening 41 'is closed, and the louver 45 is opened by means of opening the opening 41' when the heat exchanger module 10a is detached and unloaded. It is prepared to include more.

Next, two pairs of rails 25b are bolted inside both casings 40 of the opening 41 'so as to support the upper and lower edges of the first header 13 and the second header 14. It is fixed by fastening.

In the present embodiment, the supply port of the cooling tower is applied to the inlet and outlet opening 41 'of the heat exchanger module 10b as an example. However, as in the first embodiment, the inlet and outlet of the heat exchanger module 10b is used. The 41 and the opening / closing part 42 can also be comprised separately.

Next, the heat transfer tube 15a is an elliptical structure having a long diameter in which the heat transfer surface area is further enlarged. For example, two stages (or two rows) are formed between the first header 13 and the second header 14. ), But can also be arranged in stages (or rows) below or above.

Next, in the casing 40, as an example, a modular heat exchanger 1b is provided in which three sets of heat exchanger modules 10b are horizontally connected and two pairs of rails 25b are arranged.

Next, the cross flow filler 30b, which is easily divided in and out, is disposed on the three sets of heat exchanger modules 10a.

Next, the fluid inlet connection header 51 having a plurality of connection portions (not shown) for connecting with the connection portion 11 of the fluid inlet 12 of the three sets of heat exchanger module 10a, and the fluid outlet 17 A fluid outflow connection header 52 having a plurality of connection portions (unsigned) for connecting to the connection portion 18 of is provided.

Next, the pair of fluid inlet connection header 51 is connected to the fluid inlet pipe 63 for supplying a fluid, the pair of fluid outlet connection header 52 to the fluid outlet pipe for outflowing the fluid ( 64) is connected.

Next, the assembly and disassembly according to the second embodiment of the present invention will be described.

First, the two pairs of rails 25b are fixed to the casing 40 by bolting at horizontal intervals in which three sets of the heat exchanger module 10b are continuously extended and assembled.

Then, the three sets of heat exchanger modules 10b are supported between the two pairs of rails 25b and brought into the casing 40 along the rails 25b.

Then, each of the connecting portions 11 and 18 and the fluid inlet connection header configured in the three sets of heat exchanger modules 10b using the opening 41 'and the lower space of the blower fan portion 80a as a working space. 51) and the respective connecting portions (unsigned) configured in the fluid outlet connection header 52.

Then, when the louver 45 is mounted in the opening 41 ', assembly and installation are completed.

Next, when carrying out one or more of the three sets of heat exchanger modules 10b for repair to the outside of the casing 40, what is necessary is just to reverse the assembly installation.

FIG. 8 is a schematic partial cutaway side view of a modular heat exchanger according to a third embodiment of the present invention, FIG. 9 is a schematic front view of FIG. 8, FIG. 10 is a schematic plan view of FIG. 8 of FIG. 8, and FIG. 11 is a schematic side view of a cooling tower in which the modular heat exchanger of FIG. 8 is arranged. As shown in these figures, the third embodiment of the present invention is a configuration and an example of a modular heat exchanger 1c having a plurality of horizontal heat exchanger modules 10c. As a white smoke reduction heat exchanger,

A casing 40 forming a heat exchange region; An opening 41 'provided in the casing to guide the air supply into the casing, a filler 30a disposed in the heat exchange area, a water collecting tank 46 disposed below the filler 30a, and the water collecting tank 46 Cooling fluid outlet 61 provided in one region of the head), a watering unit 60a having a plurality of water spray nozzles (unsigned), an eliminator 70 for recovering scattered water droplets, and an upper portion of the casing. A press-fitting ventilation countercurrent cooling tower 2a constituted by an exhaust port (not shown) provided in the inner side and a centrifugal blower fan portion 80b disposed in the casing 40 adjacent to the opening 41 'is provided.

Next, a first header 13 having a heat exchanger casing 40 'coupled to an exhaust port (unsigned) of the casing 40 and a fluid inlet 12 having a connection portion 11 on one side thereof, A second header 14 arranged horizontally to face the first header 13, a flow path plate 19 provided at the center of the first header 13 in the longitudinal direction, and the fluid inlet 12 A fluid outlet 17 having a connection portion 18 and a plurality of bolt holes, which are configured at the outermost first header 13 from the first header 13, and both sides of the first header 13 and the second header 14. A plurality of fixing brackets 20, a pair of frames 21 coupled to the fixing brackets 20 by bolts, and a central axis of a long diameter are arranged vertically in the flow direction of the air fluid, one side An end is connected to the first header 13 and the other end is arranged to receive a plurality of elliptical heat pipe (15b) and the heat pipe connected to the second header (14). A plurality of heat-transfer fins 35, a plurality of through holes (unsigned) disposed between the first header 13 and the second header 14, through which the plurality of heat transfer tubes 15b pass, and the frame ( 21 is provided with a heat exchanger module 10c which is fixed by bolting and includes a heat transfer tube support member 22 composed of a coupling portion (unsigned) having a plurality of bolt holes at both ends.

Next, both ends of the heat exchanger casing 40 'are provided with flanges having a plurality of bolt holes formed therein, and one side of the heat exchanger casing 40' has a plurality of heat exchanger modules 10c installed therein. The opening 41 is provided in the magnitude | size which can be made.

Although not shown in the figure, the opening 41 further includes a flange having a plurality of bolt holes outside the opening 41.

In addition, as in the first embodiment described above, the opening 41 is closed after the heat exchanger module 10c is installed, and the opening 41 is opened when the heat exchanger module 10c is separated and unloaded. As a means, a through hole (not shown) through which the fluid inlet side connecting portion 11 and the fluid outlet side connecting portion 18 penetrates, and a through hole (not shown) through which the fluid inlet 12 penetrates are formed in the center. A fluid inlet side sealing plate (not shown) for sealing the through hole (not shown), and a through hole (not shown) through which the fluid outlet port 17 penetrates in the center and seals the through hole (not shown). It further comprises an opening and closing portion 42 consisting of a fluid outlet side sealing plate (unsigned) and a flange (unsigned) formed along the periphery and forming a plurality of bolt holes.

Next, a pair of rails 25a facing the pair of frames 21 coupled to the heat exchanger module 10c are bolted to the inside of both casings 40 of the opening 41. have.

Next, the heat transfer pipe 15b is an elliptical structure having a long diameter in which the heat transfer surface area is further enlarged. For example, the heat transfer pipe 15b has two stages (or two rows) between the first header 13 and the second header 14. ), But may be arranged in stages (or rows) below or above.

Next, in the casing 40 ′, as an example, a modular heat exchanger 1c in which two sets of heat exchanger modules 10c and a rail 25a are vertically extended and arranged is provided.

Next, a high temperature fluid inlet pipe 67 is connected to each of the fluid inlet 12 connecting portions 11 of the two sets of heat exchanger modules 10c, respectively, the fluid outlet 17 connecting portion 18 and the sprinkling portion. The high temperature fluid supply pipe 68 is connected between 60a.

Next, the description of the assembling installation and disassembly according to the third embodiment of the present invention is the same as or similar to the above-described first embodiment, and a description thereof will be omitted.

12 is a schematic partial cutaway side view of a modular heat exchanger according to a fourth exemplary embodiment of the present invention. As shown in the drawing, the fourth embodiment of the present invention, unlike the above-described embodiment, is arranged in the casing 40 by extending two heat exchanger modules 1c vertically.

Next, the description of the assembling installation and disassembly according to the fourth embodiment of the present invention is the same as or similar to the above-described first and third embodiments, and a description thereof will be omitted.

Although the preferred embodiments have been described with reference to the accompanying drawings, the modular heat exchanger of the present invention as an example of a cooling tower, but in the technical field to which the present invention belongs without departing from the spirit or essential features of the present invention. Those skilled in the art will be able to easily implement modified configurations and applications.

In addition, it is obvious that the modular heat exchanger of the present invention is applied to an air conditioner, an air-cooled cooler, a fluid heater, and a waste heat recovery device as well as a cooling tower applied as an example.

Therefore, the above-described embodiments are not limited only to the technical configuration and operation specified by the embodiments, but exemplify preferred embodiments of the present invention, and the scope of the present invention will be limited only by the contents described in the claims, and All variations within the scope equivalent to and differences from the variations will be construed as being included in the present invention.

Modular heat exchanger according to the present invention is a ladder heat exchanger module structure that directly connects the heat pipe of the straight pipe to each header, easy to manufacture, easy to transport, assemble and dismantle work by expanding the connection of a plurality of heat exchanger modules It can be repaired by separating and carrying out only the heat exchanger module with the damaged part in case of damage such as freezing, and it is easy to repair, and it is possible to expand the heat transfer surface area and improve heat exchange efficiency through the configuration of the heat pipe having a long diameter. There is an industrial advantage that can reduce the flow resistance of the fluid flowing in the heat pipe, and can reduce the maintenance cost.

1 is a schematic side view of a modular heat exchanger according to a first embodiment of the present invention;

FIG. 2 is a schematic partial cutaway front view of FIG. 1;

3 is a schematic plan view of FIG.

4 is a schematic side view of a cooling tower in which the modular heat exchanger of FIG. 1 is arranged;

5 is a schematic partial sectional side view of a modular heat exchanger according to a second embodiment of the present invention;

6 is a schematic front view of FIG. 5;

7 is a schematic side view of a cooling tower in which the modular heat exchanger of FIG. 5 is arranged;

8 is a schematic partial sectional side view of a modular heat exchanger according to a third embodiment of the present invention;

9 is a schematic front view of FIG. 8;

10 is a schematic plan view of FIG. 8 of FIG. 8;

11 is a schematic side view of a cooling tower in which the modular heat exchanger of FIG. 8 is arranged;

12 is a schematic partial sectional side view of a modular heat exchanger according to a fourth embodiment of the present invention;

13 is a schematic side view of a conventional integrated wet heat exchanger,

14 is a schematic front view of FIG. 13;

15 is a schematic perspective view of a conventional integrated dry heat exchanger.

<Code Description of Main Parts of Drawing>

1a, 1b, 1c: modular heat exchanger 2a, 2b, 2c: cooling tower

10a, 10b, 10c: heat exchanger module 11, 18: connection

12: fluid inlet port 13: the first header

14: second header 15a, 15b: heat pipe

16: depression 17: fluid outlet

19, 19 ': Euro plate 20, 20': Fixed bracket

21, 21 ': Frame 22: Heat pipe support member

25a, 25b: rail 30a, 30b: filler

35: heating fin 40, 40 ': casing

41, 41 ': opening 42: opening and closing portion

45: louver 46: sump

51: fluid inflow connection header 52: fluid outflow connection header

60a, 60b: watering part 61: cooling fluid outlet

63: fluid inlet pipe 64: fluid outlet pipe

65: spraying pump 66: cooling fluid supply pipe

67: high temperature fluid inlet pipe 68: high temperature fluid supply pipe

70: eliminator 80a, 80b: blowing fan part

Claims (12)

In the heat exchanger which heat-exchanges a fluid, Casings 40 and 40 'forming heat exchange regions; A first header 13 configured to form the fluid inlet 12, a second header 14 disposed to face the first header 13, and a first header outermost from the fluid inlet 12 ( 13 and the fluid outlet 17 formed at any one of the second header 14 and the fluid flow path, and the first header 13 or the first header 13 and the second header 14. ), A heat transfer pipe support member 22 disposed between the flow path partition plates 19 and 19 'configured at any one of the selection units and the first header 13 and the second header 14 and forming a plurality of through holes. And a heat transfer tube formed of a plurality of straight pipes connected to the first header 13 and the other end connected to the second header 14 through the through hole, and the first header 13. And ladder heat exchanger module consisting of a pair of frames coupled to the second header 14; A plurality of rails fixed to the casing and guiding the support and the entry and exit of the heat exchanger module; Is formed in the casing, and includes an opening through which the heat exchanger module enters, The heat pipe, the cross section is made of any one of an oval or peanut type having a long diameter in which the heat transfer surface area is more enlarged, The heat transfer pipe, as a means for freezing prevention, is arranged to have a gradient within 5% in the flow direction of the fluid to facilitate the drainage of the fluid in the heat transfer pipe, The heat exchanger module may include any one of the horizontal heat exchanger modules 10a and 10c in which the first header and the second header are horizontally disposed in the casing, or the vertical heat exchanger module 10b to be disposed vertically. , The plurality of heat exchanger modules configured in the casing, characterized in that the modular heat exchanger is extended in any one of the vertical or horizontal direction. The method of claim 1, Modular heat exchanger, characterized in that formed at both ends of the heat transfer tube support member, further comprising a coupling portion fixed to the frame and having a plurality of bolt holes. delete delete The method of claim 1, The heat exchanger tube, characterized in that it further comprises a depression 16 having a curved surface to increase the contact by delaying the direct flow of the fluid flowing through the outer surface of the heat transfer tube on one side or both sides in the longitudinal direction of the heat transfer tube group. The method of claim 1, Modular heat exchanger, characterized in that the heat pipe further comprises a plurality of heat transfer fins (35). The method of claim 1, The pair of frames further includes a plurality of fixing brackets 20 and 20 'in the first header 13 and the second header 14 to be coupled by bolting or the first header 13 and the first header. Modular heat exchanger, characterized in that the coupling to any one of the two header (14) by welding. The method of claim 1, The rail is a pair of rails 25a configured to support the pair of frames, respectively, or two pairs configured to support upper and lower edges of the first header 13 and the second header 14. Modular heat exchanger, characterized in that any one of the rails (25b). delete delete The method of claim 1, The opening further comprises any one of an opening and closing portion (42) for opening and closing the opening or a louver (45) for guiding the air supply. The method of claim 1, The heat exchanger module of any one of the top or bottom, the heat exchanger, characterized in that it further comprises a filler for dispersing the cooling and falling of the fluid (cooling water) for flowing and heat-exchanging the outer surface of the heat pipe.

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