Air-cooled tubular heat exchanger

Abstract

The utility model belongs to the technical field of heat exchangers, and discloses an air-cooled tubular heat exchanger which comprises a water inlet end cover, the right end of the water inlet end cover is connected with a first tube plate, the front side of the right end face of the first tube plate is connected with a front side plate, and the rear side of the right end face of a second tube plate is connected with a rear side plate. The right end face of the front side plate and the right end face of the rear side plate are both connected with a second tube plate, the right end face of the second tube plate is connected with a water outlet end cover, and heat exchange tube nests are connected between the first tube plate and the second tube plate. The whole heat exchanger formed by connecting the water inlet end cover, the first tube plate, the front side plate, the rear side plate, the second tube plate, the water outlet end cover and the heat exchange tube nest is a rectangular body. The whole heat exchanger is in the shape of a rectangular body, can adapt to spaces of various shapes and sizes, has higher space adaptability, and is beneficial to uniform distribution of fluid, so that each heat exchange tube can be fully cooled or heated, the whole heat exchange efficiency is improved, and the heat exchanger is simple and convenient to clean and maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and more specifically, relates to an air-cooled tube-and-shell heat exchanger. Background Art

[0002] Air-cooled shell-and-tube heat exchanger is an important heat exchange equipment. It uses air as a cooling medium and transfers heat from the cooled object to the air by forced convection to achieve heat exchange.

[0003] Existing air-cooled shell-and-tube heat exchangers are mostly cylindrical bottle-shaped or tank-shaped, and have the following problems during use: 1. Structural limitations: The appearance of the cylindrical bottle-shaped or tank-shaped heat exchangers limits their installation and use in certain specific spaces, especially in situations where space is limited or the shape is special, the cylindrical air-cooled shell-and-tube heat exchanger may not be able to adapt; 2. Uneven fluid distribution: In the cylindrical bottle-shaped or tank-shaped heat exchangers, the distribution of the fluid may not be uniform, resulting in some heat exchange tubes not being fully cooled or heated, affecting the overall heat exchange efficiency; 3. Difficult cleaning and maintenance: The shape of the cylindrical bottle-shaped or tank-shaped heat exchangers makes cleaning and maintenance relatively difficult, especially when it is necessary to clean the internal pipes or check the pipe connections, which may require disassembling the entire equipment or using complex tools.

[0004] To this end, the utility model provides an air-cooled shell-and-tube heat exchanger. Utility Model Content

[0005] The utility model aims to provide an air-cooled shell-and-tube heat exchanger to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A wind-cooled shell-and-tube heat exchanger comprises a water inlet end cover, wherein the right end of the water inlet end cover is connected to a first tube sheet, a front side plate is connected to the front side of the right end face of the first tube sheet, a rear side plate is connected to the rear side of the right end face of the first tube sheet, the right end faces of the front side plate and the rear side plate are both connected to a second tube sheet, the right end face of the second tube sheet is connected to the water outlet end cover, heat exchange tubes are connected between the first tube sheet and the second tube sheet, and the heat exchanger formed by connecting the water inlet end cover, the first tube sheet, the front side plate, the rear side plate, the second tube sheet, the water outlet end cover and the heat exchange tubes is a rectangular body as a whole.

[0008] As a further preferred technical solution of the utility model, the overall shape of the water inlet end cover is a rectangular body, and a first open chamber is opened on the right end surface of the water inlet end cover, the opening of the first open chamber faces rightward, and a first screw hole is opened on the upper part of the first open chamber. The water inlet end cover is screwed to the first tube plate through the first screw hole, and a water inlet is opened on the left end surface of the water inlet end cover, and the water inlet is a circular hole that penetrates into the first open chamber, and second screw holes are opened around the water inlet, and a first protrusion extends from the lower part of the water inlet, and a slot hole is opened on the first protrusion, and a third screw hole is opened on the rear end surface of the water inlet end cover.

[0009] As a further preferred technical solution of the utility model, the overall shape of the water outlet end cover is a rectangular body, and a second open chamber is opened on the left end surface of the water outlet end cover, the opening of the second open chamber faces leftward, and a fourth screw hole is opened on the upper part of the second open chamber, and the water outlet end cover is screwed to the second tube plate through the fourth screw hole, and a water outlet is opened on the front side surface of the water outlet end cover, and the water outlet is a circular hole and passes through the second open chamber, and a fifth screw hole is opened around the water outlet, and a second protrusion extends from the lower part of the right end surface of the water outlet end cover, and a slot hole is opened on the second protrusion, and a screw column extends from the center of the right end surface of the water outlet end cover, the screw column is a rectangular body, and a sixth screw hole is opened on the screw column, and a rectangular sink groove is opened on the top end surface and the lower end surface of the water outlet end cover, and a seventh screw hole is opened on the rectangular sink groove.

[0010] As a further preferred technical solution of the present invention, the water inlet end cover is an integral piece made of aluminum alloy, and the water outlet end cover is an integral piece made of aluminum alloy.

[0011] As a further preferred technical solution of the utility model, the first tube sheet and the second tube sheet are both rectangular, the first tube sheet is provided with a first through hole screwed to the first screw hole on the upper portion, the first tube sheet is also provided with an expansion hole expanded to the left end of the heat exchange tube, the first tube sheet and the left end of the heat exchange tube need to be welded after expansion to enhance strength, the second tube sheet is provided with a second through hole screwed to the fourth screw hole on the upper portion, the second tube sheet is also provided with an expansion hole expanded to the right end of the heat exchange tube, the second tube sheet and the right end of the heat exchange tube need to be welded after expansion to enhance strength.

[0012] As a further preferred technical solution of the present invention, the first tube sheet is an integral piece made of SUS304 material, and the second tube sheet is an integral piece made of SUS304 material.

[0013] As a further preferred technical solution of the utility model, the first tube sheet, the front side plate, the rear side plate and the second tube wall are welded and connected, and the first tube sheet, the front side plate, the rear side plate and the second tube wall together constitute a third open chamber with openings at the top and the bottom, and the heat exchange tubes are arranged in the third open chamber, and the upper left and right ends of the front side plate and the rear side plate are provided with L-shaped connectors, and the L-shaped connectors are welded to the front side plate and the rear side plate, and circular through holes are opened on the L-shaped connectors, and the left end L-shaped connectors of the front side plate and the rear side plate are screwed to the first tube sheet and the water inlet end cover through the circular through holes, and the right end L-shaped connectors of the front side plate and the rear side plate are screwed to the second tube sheet and the water outlet end cover through the circular through holes.

[0014] As a further preferred technical solution of the present utility model, the front side plate is an integral piece made of SUS304 material, and the rear side plate is an integral piece made of SUS304 material;

[0015] The first threaded hole, the second threaded hole, the third threaded hole, the fourth threaded hole, the fifth threaded hole, the sixth threaded hole and the seventh threaded hole are all embedded with wire thread sleeves.

[0016] As a further preferred technical solution of the utility model, the heat exchange tube arrays are all composed of a plurality of groups of heat exchange tube arrays, and the heat exchange tubes are all aluminum fin heat exchange tubes.

[0017] As a further preferred technical solution of the utility model, a sealing gasket is arranged between the water inlet end cover and the first tube sheet, and a sealing gasket is also arranged between the water outlet end cover and the second tube sheet, and the shape of the sealing gasket is consistent with the shape of the right end face of the water inlet end cover or the left end face of the water outlet end cover.

[0018] As described above, the utility model provides an air-cooled shell-and-tube heat exchanger, which has the following beneficial effects:

[0019] 1. The utility model utilizes the above-mentioned air-cooled shell-and-tube heat exchanger. Compared with the prior art, due to the adoption of such a structure, the heat exchanger formed by connecting the water inlet end cover, the first tube sheet, the front side plate, the rear side plate, the second tube sheet, the water outlet end cover and the heat exchange tubes is a rectangular body as a whole. The shape of the rectangular body makes it more flexible in installation and use, and can adapt to spaces of various shapes and sizes, especially in occasions with limited space or special shapes, and has higher adaptability.

[0020] 2. The utility model utilizes the above-mentioned air-cooled shell-and-tube heat exchanger. Compared with the prior art, due to the adoption of such a structure, the heat exchanger composed of the water inlet end cover, the first tube sheet, the front side plate, the rear side plate, the second tube sheet, the water outlet end cover and the heat exchange tubes is formed into a rectangular body as a whole. The rectangular body design is conducive to the uniform distribution of the fluid, so that each heat exchange tube can be fully cooled or heated, thereby improving the overall heat exchange efficiency.

[0021] 3. The utility model utilizes the above-mentioned air-cooled shell-and-tube heat exchanger. Compared with the prior art, due to the adoption of such a structure, the heat exchanger composed of the water inlet end cover, the first tube sheet, the front side plate, the rear side plate, the second tube sheet, the water outlet end cover and the heat exchange tubes is a rectangular body as a whole. The shape of the rectangular body makes cleaning and maintenance work relatively simple, especially when it is necessary to clean the internal pipeline or check the pipeline connection, it can be more easily approached and operated, reducing the maintenance cost and difficulty.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 This is a schematic diagram of the structure of an air-cooled shell-and-tube heat exchanger applied for by the utility model;

[0025] Figure 2 for Figure 1 The enlarged schematic diagram of point Ⅰ in the middle;

[0026] Figure 3 This is a top view of an air-cooled shell-and-tube heat exchanger applied for by the utility model;

[0027] Figure 4 This is a rear view of an air-cooled shell-and-tube heat exchanger applied for by the utility model;

[0028] Figure 5 The utility model is a schematic diagram of the water outlet cover structure of an air-cooled shell-and-tube heat exchanger.

[0029] Summary of reference numerals and their descriptions:

[0030] 100, water inlet cover; 110, water inlet; 120, second screw hole; 130, first protrusion; 140, third screw hole; 200, first tube sheet; 300, front side plate; 400, rear side plate; 500, second tube sheet; 600, water outlet cover; 610, second open chamber; 620, fourth screw hole; 630, water outlet; 640, fifth screw hole; 650, second protrusion; 660, screw column; 670, trough; 680, seventh screw hole; 700, heat exchange tubes; 800, L-shaped connector; 900, sealing gasket. DETAILED DESCRIPTION

[0031] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0032] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed in this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of the implementation of this utility model. The specific structure can be described with reference to the drawings of the patent application.

[0033] The utility model provides an air-cooled tube-and-tube heat exchanger. Figures 1 to 5 As shown, it includes a water inlet end cover 100, the right end of which is connected to the first tube sheet 200, a front side plate 300 is connected to the front side of the right end face of the first tube sheet 200, a rear side plate 400 is connected to the rear side of the right end face of the first tube sheet 200, the right end faces of the front side plate 300 and the rear side plate 400 are both connected to the second tube sheet 500, the right end face of the second tube sheet 500 is connected to the water outlet end cover 600, a heat exchange tube 700 is connected between the first tube sheet 200 and the second tube sheet 500, and the heat exchanger formed by connecting the water inlet end cover 100, the first tube sheet 200, the front side plate 300, the rear side plate 400, the second tube sheet 500, the water outlet end cover 600 and the heat exchange tube 700 is a rectangular body as a whole.

[0034] Specifically, the specific structure of the water inlet end cover 100 is shown below. Figure 1 , Figure 3 as well as Figure 4 As shown, the overall shape of the water inlet end cover 100 is a rectangular body, and a first open chamber is opened on the right end surface of the water inlet end cover 100, the opening of the first open chamber faces rightward, and a first screw hole is opened on the upper part of the first open chamber. The water inlet end cover 100 is screwed to the first tube sheet 200 through the first screw hole. A water inlet 110 is opened on the left end surface of the water inlet end cover 100, and the water inlet 110 is a circular hole that penetrates the first open chamber. Second screw holes 120 are opened around the water inlet 110, and a first protrusion 130 extends from the lower part of the water inlet 110, and a slot hole is opened on the first protrusion 130, and a third screw hole 140 is opened on the rear end surface of the water inlet end cover 100.

[0035] Specifically, the specific structure of the water outlet cover 600 is shown below. Figure 1 , Figure 3 , Figure 4 as well as Figure 5 As shown, the overall shape of the water outlet cover 600 is a rectangular body, and a second open chamber 610 is opened on the left end surface of the water outlet cover 600. The opening of the second open chamber 610 faces leftward, and a fourth screw hole 620 is opened on the upper part of the second open chamber 610. The water outlet cover 600 is screwed to the second tube sheet 500 through the fourth screw hole 620. A water outlet 630 is opened on the front side of the water outlet cover 600. The water outlet 630 is a circular hole and penetrates the second open chamber 610. A fifth screw hole 640 is provided around the water outlet 630, a second protrusion 650 extends from the lower part of the right end surface of the water outlet end cover 600, and a slot is provided on the second protrusion 650, a screw column 660 extends from the center of the right end surface of the water outlet end cover 600, the screw column 660 is rectangular, and a sixth screw hole is provided on the screw column 660, and a rectangular groove 670 is provided on the top end surface and the lower end surface of the water outlet end cover 600, and a seventh screw hole 680 is provided on the rectangular groove 670.

[0036] The water inlet end cover 100 is an integral part made of aluminum alloy, and the water outlet end cover 600 is an integral part made of aluminum alloy.

[0037] The first tube sheet 200 and the second tube sheet 500 are both rectangular bodies. The first tube sheet 200 has a first through hole screwed to the first screw hole on the upper portion. The first tube sheet 200 also has an expansion hole for expansion connection with the left end of the heat exchange tube 700. After the first tube sheet 200 and the left end of the heat exchange tube 700 are expanded, welding is required to enhance the strength. The second tube sheet 500 has a second through hole screwed to the fourth screw hole 620 on the upper portion. The second tube sheet 500 also has an expansion hole for expansion connection with the right end of the heat exchange tube 700. After the second tube sheet 500 and the right end of the heat exchange tube 700 are expanded, welding is required to enhance the strength.

[0038] The first tube sheet 200 is an integral piece made of SUS304 material, and the second tube sheet 500 is an integral piece made of SUS304 material.

[0039] The first tube sheet 200, the front side sheet 300, the rear side sheet 400 and the second tube wall are welded and connected. The first tube sheet 200, the front side sheet 300, the rear side sheet 400 and the second tube wall together constitute a third open chamber with top and bottom openings. The top and bottom openings of the third open chamber can be connected to cooling equipment such as a cooling fan to enhance the heat transfer cooling effect. The heat exchange tubes 700 are arranged in the third open chamber. The left ends of the front side sheet 300 and the rear side sheet 400 and An L-shaped connector 800 is provided at the upper right end, and the L-shaped connector 800 is welded to the front side plate 300 and the rear side plate 400. A circular through hole is opened on the L-shaped connector 800. The left end L-shaped connector 800 of the front side plate 300 and the rear side plate 400 is screwed to the first tube plate 200 and the water inlet end cover 100 through the circular through hole, and the right end L-shaped connector 800 of the front side plate 300 and the rear side plate 400 is screwed to the second tube plate 500 and the water outlet end cover 600 through the circular through hole.

[0040] The front side plate 300 is an integral piece made of SUS304 material, and the rear side plate 400 is an integral piece made of SUS304 material.

[0041] The first threaded hole, the second threaded hole 120 , the third threaded hole 140 , the fourth threaded hole 620 , the fifth threaded hole 640 , the sixth threaded hole and the seventh threaded hole 680 are all embedded with wire thread sleeves.

[0042] It should be noted that the wire thread insert is precisely processed from high-strength, high-precision, smooth-surfaced cold-rolled diamond-shaped stainless steel wire. It is screwed into and fastened in the threaded hole of one of the connected parts to form a standard internal thread for the bolt (or screw) to be screwed into, thereby extending the service life of the screw, enhancing the connection strength, improving the connection conditions, and preventing corrosion and rust.

[0043] The heat exchange tube arrays 700 are composed of a plurality of heat exchange tube arrays, and the heat exchange tubes are all aluminum fin heat exchange tubes.

[0044] A sealing gasket 900 is provided between the water inlet end cover 100 and the first tube sheet 200, and a sealing gasket 900 is also provided between the water outlet end cover 600 and the second tube sheet 500. The shape of the sealing gasket 900 is consistent with the shape of the right end surface of the water inlet end cover 100 or the left end surface of the water outlet end cover 600, so as to achieve a good sealing effect and improve the heat transfer effect.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An air-cooled shell-and-tube heat exchanger, characterized in that: The heat exchanger comprises a water inlet end cover, the right end of which is connected to a first tube sheet, a front side plate is connected to the front side of the right end face of the first tube sheet, a rear side plate is connected to the rear side of the right end face of the first tube sheet, the right end faces of the front side plate and the rear side plate are both connected to the second tube sheet, the right end face of the second tube sheet is connected to the water outlet end cover, heat exchange tubes are connected between the first tube sheet and the second tube sheet, and the heat exchanger formed by connecting the water inlet end cover, the first tube sheet, the front side plate, the rear side plate, the second tube sheet, the water outlet end cover and the heat exchange tubes is a rectangular body as a whole.

2. The air-cooled shell-and-tube heat exchanger according to claim 1, characterized in that: The overall shape of the water inlet end cover is a rectangular body, and a first open chamber is opened on the right end surface of the water inlet end cover, the opening of the first open chamber faces rightward, a first screw hole is opened on the upper part of the first open chamber, and the water inlet end cover is screwed to the first tube plate through the first screw hole, and a water inlet is opened on the left end surface of the water inlet end cover, and the water inlet is a circular hole that penetrates into the first open chamber, and second screw holes are opened around the water inlet, and a first protrusion extends from the lower part of the water inlet, and a slot hole is opened on the first protrusion, and a third screw hole is opened on the rear end surface of the water inlet end cover.

3. The air-cooled shell-and-tube heat exchanger according to claim 1, characterized in that: The overall shape of the water outlet end cover is a rectangular body, and a second open chamber is opened on the left end surface of the water outlet end cover, the opening of the second open chamber faces leftward, and a fourth screw hole is opened on the upper part of the second open chamber, and the water outlet end cover is screwed to the second tube plate through the fourth screw hole, and a water outlet is opened on the front side surface of the water outlet end cover, and the water outlet is a circular hole and penetrates into the second open chamber, and fifth screw holes are opened around the water outlet, and a second protrusion extends from the lower part of the right end surface of the water outlet end cover, and a slot hole is opened on the second protrusion, and a screw column extends from the center of the right end surface of the water outlet end cover, and the screw column is a rectangular body, and a sixth screw hole is opened on the screw column, and a rectangular sink groove is opened on the top end surface and the lower end surface of the water outlet end cover, and a seventh screw hole is opened on the rectangular sink groove.

4. An air-cooled shell-and-tube heat exchanger according to claim 2 or 3, characterized in that: The water inlet end cover is an integral piece made of aluminum alloy, and the water outlet end cover is an integral piece made of aluminum alloy.

5. The air-cooled shell-and-tube heat exchanger according to claim 2 or 3, characterized in that: The first tube sheet and the second tube sheet are both rectangular bodies. The first tube sheet is provided with a first through hole screwed to the first screw hole on the upper part. The first tube sheet is also provided with an expansion hole for expansion connection with the left end of the heat exchange tube. After the first tube sheet and the left end of the heat exchange tube are expanded, welding is required to enhance the strength. The second tube sheet is provided with a second through hole screwed to the fourth screw hole on the upper part. The second tube sheet is also provided with an expansion hole for expansion connection with the right end of the heat exchange tube. After the second tube sheet and the right end of the heat exchange tube are expanded, welding is required to enhance the strength.

6. The air-cooled shell-and-tube heat exchanger according to claim 5, characterized in that: The first tube sheet is an integral part made of SUS304 material, and the second tube sheet is an integral part made of SUS304 material.

7. The air-cooled shell-and-tube heat exchanger according to claim 5, characterized in that: The first tube sheet, the front side sheet, the rear side sheet and the second tube wall are welded and connected. The first tube sheet, the front side sheet, the rear side sheet and the second tube wall together constitute a third open chamber with openings at the top and the bottom. The heat exchange tubes are arranged in the third open chamber. The upper left and right ends of the front side sheet and the rear side sheet are provided with L-shaped connectors, which are welded to the front side sheet and the rear side sheet. A circular through hole is provided on the L-shaped connector. The left end L-shaped connector of the front side sheet and the rear side sheet is screwed to the first tube sheet and the water inlet end cover through the circular through hole, and the right end L-shaped connector of the front side sheet and the rear side sheet is screwed to the second tube sheet and the water outlet end cover through the circular through hole.

8. The air-cooled shell-and-tube heat exchanger according to claim 7, characterized in that: The front side plate is made of SUS304 material as an integral part, and the rear side plate is made of SUS304 material as an integral part; The first threaded hole, the second threaded hole, the third threaded hole, the fourth threaded hole, the fifth threaded hole, the sixth threaded hole and the seventh threaded hole are all embedded with wire thread sleeves.

9. The air-cooled shell-and-tube heat exchanger according to claim 1, characterized in that: The heat exchange tube arrays are all composed of a plurality of groups of heat exchange tube arrays, and the heat exchange tubes are all aluminum fin heat exchange tubes.

10. The air-cooled shell-and-tube heat exchanger according to claim 1, characterized in that: A sealing gasket is provided between the water inlet end cover and the first tube sheet, and a sealing gasket is also provided between the water outlet end cover and the second tube sheet. The shape of the sealing gasket is consistent with the shape of the right end face of the water inlet end cover or the left end face of the water outlet end cover.

Images