Shell and tube heat exchanger with heat exchange area adjusting function

Abstract

The utility model relates to the technical field of shell and tube heat exchangers, and discloses a shell and tube heat exchanger with a heat exchange area adjusting function, which comprises a shell and two supporting seats, the top surfaces of the two supporting seats are fixedly connected with the bottom surface of the shell, an adjusting mechanism and a filtering mechanism are arranged on the outer side of the shell, and the filtering mechanism is positioned on the outer side of the adjusting mechanism; the adjusting mechanism comprises an adjusting assembly and a heat exchange assembly. The adjusting assembly is located on the surface of the heat exchange assembly. The heat exchange assembly comprises two tube boxes. According to the shell-and-tube heat exchanger, the tube box and the tube plate are conveniently mounted and dismounted through the adjusting mechanism and the heat exchange assembly by means of first bolts, an operator can conveniently dismount and maintain the interior of the shell-and-tube heat exchanger, the adjusting assembly drives two sliding blocks to move by means of a double-end threaded rod, and therefore a baffle slides out of a sliding groove and blocks water entering a heat exchange tube; the number of the heat exchange pipes is adjusted, the heat exchange area is conveniently controlled, the heat exchange requirements under different working conditions are met, and the flexibility and efficiency of the shell and tube heat exchanger are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shell-and-tube heat exchangers, in particular to a shell-and-tube heat exchanger with a heat exchange area adjustment function. Background Technique

[0002] A shell-and-tube heat exchanger is a heat transfer device, which is composed of a shell, a tube sheet, a tube bundle, a baffle and a box body. The shell-and-tube (or tube-shell) heat exchanger is the most widely used traditional heat exchanger.

[0003] According to the shell-and-tube heat exchanger published by the Chinese patent, the publication number is CN214426497U, which includes a heat exchanger shell and a tube side assembly arranged in the inner cavity of the heat exchanger shell; the tube side assembly includes a tube bundle support, copper tubes arranged on the tube bundle support, and a distributor and a collector respectively connected to the end parts of the copper tubes; the heat exchanger shell is provided with a liquid inlet and a liquid outlet communicated with its inner cavity; the heat exchanger shell includes a cylinder body and end plates hermetically welded to the opening edges at both ends of the cylinder body. This shell-and-tube heat exchanger has the advantages of simplified structure, easy processing, cost reduction and guaranteed sealing performance;

[0004] The liquid inlet and the liquid outlet in this device are used to put in or discharge water. The refrigerant flowing inside the copper tubes exchanges heat with water through the refrigerant to achieve the heat exchange purpose. However, the existing device still has the following problems: the copper tubes cannot adjust the heat exchange area and cannot meet the heat exchange requirements under different working conditions. Therefore, a shell-and-tube heat exchanger with a heat exchange area adjustment function is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a shell-and-tube heat exchanger with a heat exchange area adjustment function to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a shell-and-tube heat exchanger with a heat exchange area adjustment function, including a shell and two support seats, the top surfaces of the two support seats are fixedly connected to the bottom surface of the shell, an adjustment mechanism and a filtering mechanism are arranged on the outer side of the shell, and the filtering mechanism is located outside the adjustment mechanism;

[0007] The adjustment mechanism includes an adjustment component and a heat exchange component;

[0008] The adjustment component is located on the surface of the heat exchange component;

[0009] The heat exchange component includes two tube boxes, the two tube boxes are respectively located on the left and right sides of the shell, the two tube boxes are symmetrically arranged, a liquid inlet pipe is arranged on the left side of the left tube box, a liquid outlet pipe is arranged on the right side of the right tube box, a heat exchange tube is arranged inside the shell, there are multiple heat exchange tubes, and tube sheets are arranged on both the left and right sides of the heat exchange tubes;

[0010] The adjusting component includes a connecting plate, the side of the connecting plate is fixedly connected to the inner wall of the left tube box, a motor is fixedly connected to the surface of the left tube box, a double-headed threaded rod, sliders and baffles are arranged inside the left tube box, there are two sliders and two baffles symmetrically arranged, a chute is formed through the top surface of the connecting plate, and the baffle is located inside the chute.

[0011] Preferably, the closer surfaces of the two tube plates are respectively fixedly connected to the left and right side surfaces of the housing, and the left and right end faces of the heat exchange tubes respectively penetrate through the closer surfaces of the two tube plates and extend to the outside of the two tube plates, improving the connection stability of the heat exchange tubes.

[0012] Preferably, the inner wall of the tube box is threadedly connected to the inner wall of the tube plate through the first bolt, facilitating the disassembly of the tube box.

[0013] Preferably, the right end face of the liquid inlet pipe fixedly penetrates through the left side surface of the left tube box and extends to the inside of the left tube box, and the left end face of the liquid outlet pipe fixedly penetrates through the right side surface of the right tube box and extends to the inside of the right tube box.

[0014] Preferably, the top surface of the double-headed threaded rod penetrates through the bottom surfaces of the two sliders and the bottom surface of the connecting plate and extends above the sliders, the surface of the double-headed threaded rod is rotationally connected to the inner wall of the connecting plate through a bearing seat, and the surface of the double-headed threaded rod is threadedly connected to the inner walls of the two sliders, driving the sliders to move through the double-headed threaded rod.

[0015] Preferably, the top surface of the output rod of the motor penetrates through the surface of the left tube box and extends to the inside of the left tube box, the top surface of the output rod of the motor is fixedly connected to the bottom surface of the double-headed threaded rod, and the top surface of the double-headed threaded rod is rotationally connected to the inner side surface of the left tube box through a bearing seat, and the motor provides power for the double-headed threaded rod.

[0016] Preferably, the right side surfaces of the two sliders are respectively fixedly connected to the left side surfaces of the two baffles, and the right side surface of the baffle is slidably connected to the left side surface of the left tube plate, driving the baffle to move through the slider.

[0017] Preferably, the filtering mechanism includes a connecting pipe and a filtering box, the inner wall of the flange of the connecting pipe is threadedly connected to the inner wall of the flange of the liquid inlet pipe through the second bolt, the left end face of the connecting pipe fixedly penetrates through the right side surface of the filtering box and extends to the inside of the filtering box, a filter screen is arranged on the left side of the connecting pipe, the side surface of the filter screen is fixedly connected to the inner side surface of the filtering box, a water inlet pipe is arranged on the left side of the filter screen, and the top surface of the water inlet pipe fixedly penetrates through the inner top surface of the filtering box and extends above the filtering box, facilitating the filtration of the water entering the heat exchange tubes and avoiding the blockage of impurities on the inner wall of the heat exchange tubes during long-term use.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the shell-and-tube heat exchanger with the heat exchange area adjustment function, through the adjustment mechanism, the heat exchange component can conveniently install and disassemble the tube box and the tube sheet by using the first bolt, which is convenient for the operator to disassemble and repair the inside of the shell-and-tube heat exchanger. The adjustment component drives two sliders to move by using the double-headed threaded rod, so as to slide the baffle out of the chute and block the water inlet of the heat exchange tubes, thereby adjusting the number of heat exchange tubes, facilitating the control of the heat exchange area, adapting to the heat exchange requirements under different working conditions, and improving the flexibility and efficiency of the shell-and-tube heat exchanger; through the filtering mechanism, the filter screen in the filter box can filter the water entering the heat exchange tubes, avoiding blockage of impurities in the heat exchange tubes during use, and improving the service life of the shell-and-tube heat exchanger. Description of the Drawings

[0019] Figure 1 It is the overall front cross-sectional perspective view of the present utility model;

[0020] Figure 2 It is the overall front view perspective view of the present utility model;

[0021] Figure 3 It is the left view perspective view of the double-headed threaded rod of the present utility model;

[0022] Figure 4 It is the front cross-sectional perspective view of the double-headed threaded rod of the present utility model;

[0023] Figure 5 For the present utility model Figure 1 The enlarged perspective view of area A in it.

[0024] In the figure: housing 1, adjustment mechanism 2, tube box 201, tube sheet 202, liquid inlet pipe 203, liquid outlet pipe 204, heat exchange tube 205, connecting plate 206, motor 207, double-headed threaded rod 208, slider 209, baffle 210, filtering mechanism 3, connecting pipe 301, filter box 302, filter screen 303, water inlet pipe 304, support seat 4. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] Please refer to Figure 1 - Figure 5, the present utility model provides a technical solution: a shell-and-tube heat exchanger with a heat exchange area adjustment function, which includes a housing 1 and two support seats 4. The top surfaces of the two support seats 4 are fixedly connected to the bottom surface of the housing 1. An adjustment mechanism 2 and a filtering mechanism 3 are arranged outside the housing 1, and the filtering mechanism 3 is located outside the adjustment mechanism 2;

[0028] The adjustment mechanism 2 includes an adjustment component and a heat exchange component;

[0029] The adjustment component is located on the surface of the heat exchange component;

[0030] The heat exchange component includes two tube sheets 201. The two tube sheets 201 are respectively located on the left and right sides of the housing 1. The two tube sheets 201 are symmetrically arranged. A liquid inlet pipe 203 is arranged on the left side of the left tube sheet 201, and a liquid outlet pipe 204 is arranged on the right side of the right tube sheet 201. A plurality of heat exchange tubes 205 are arranged inside the housing 1, and tube plates 202 are arranged on both the left and right sides of the heat exchange tubes 205;

[0031] The adjusting assembly includes a connecting plate 206. The side surface of the connecting plate 206 is fixedly connected to the inner wall of the left tube box 201. A motor 207 is fixedly connected to the surface of the left tube box 201. A double-headed threaded rod 208, sliders 209 and a baffle 210 are arranged inside the left tube box 201. There are two sliders 209 and two baffles 210, both of which are symmetrically arranged. A chute is formed through the top surface of the connecting plate 206, and the baffle 210 is located inside the chute. The closer surfaces of the two tube plates 202 are respectively fixedly connected to the left and right side surfaces of the housing 1. The left and right end faces of the heat exchange tubes 205 respectively penetrate through the closer surfaces of the two tube plates 202 and extend to the outside of the two tube plates 202. The inner wall of the tube box 201 is threadedly connected to the inner wall of the tube plate 202 through a first bolt. The right end face of the liquid inlet pipe 203 fixedly penetrates through the left side surface of the left tube box 201 and extends to the inside of the left tube box 201. The left end face of the liquid outlet pipe 204 fixedly penetrates through the right side surface of the right tube box 201 and extends to the inside of the right tube box 201. The top end face of the double-headed threaded rod 208 penetrates through the bottom surfaces of the two sliders 209 and the bottom surface of the connecting plate 206 and extends above the sliders 209. The surface of the double-headed threaded rod 208 is rotationally connected to the inner wall of the connecting plate 206 through a bearing seat. The surface of the double-headed threaded rod 208 is threadedly connected to the inner walls of the two sliders 209. The top end face of the output rod of the motor 207 penetrates through the surface of the left tube box 201 and extends to the inside of the left tube box 201. The top end face of the output rod of the motor 207 is fixedly connected to the bottom end face of the double-headed threaded rod 208. The top end face of the double-headed threaded rod 208 is rotationally connected to the inner side surface of the left tube box 201 through a bearing seat. The right side surfaces of the two sliders 209 are respectively fixedly connected to the left side surfaces of the two baffles 210. The right side surface of the baffle 210 is slidably connected to the left side surface of the left tube plate 202. Through the adjusting mechanism 2, the heat exchange assembly can conveniently install and disassemble the tube box 201 and the tube plate 202 by using the first bolt, which is convenient for the operator to disassemble and repair the inside of the shell-and-tube heat exchanger. The adjusting assembly drives the two sliders 209 to move by using the double-headed threaded rod 208, so as to slide the baffle 210 out of the chute and block the water inlet of the heat exchange tubes 205, thereby adjusting the number of the heat exchange tubes 205, facilitating the control of the heat exchange area, adapting to the heat exchange requirements under different working conditions, and improving the flexibility and efficiency of the shell-and-tube heat exchanger.

[0032] Embodiment 2

[0033] On the basis of Embodiment 1, the preferred embodiment of the shell-and-tube heat exchanger with the function of adjusting the heat exchange area provided by the present invention is as follows Figure 1 and Figure 2As shown in the figure: The filtering mechanism 3 includes a connecting pipe 301 and a filtering box 302. The inner wall of the flange of the connecting pipe 301 is threadedly connected to the inner wall of the flange of the liquid inlet pipe 203 through a second bolt. The left end face of the connecting pipe 301 fixedly penetrates through the right side face of the filtering box 302 and extends into the interior of the filtering box 302. A filter screen 303 is arranged on the left side of the connecting pipe 301. The side face of the filter screen 303 is fixedly connected to the inner side face of the interior of the filtering box 302. A water inlet pipe 304 is arranged on the left side of the filter screen 303. The top face of the water inlet pipe 304 fixedly penetrates through the inner top face of the filtering box 302 and extends above the filtering box 302. Through the filtering mechanism 3, the filter screen 303 in the filtering box 302 can filter the water entering the heat exchange tube 205, avoiding blockage of impurities in the heat exchange tube 205 during use and improving the service life of the shell-and-tube heat exchanger.

[0034] During use, connect the water source connecting pipe to the water inlet pipe 304. Water enters the filtering box 302 through the water inlet pipe 304. The water entering the connecting pipe 301 is filtered by the filter screen 303. The filtered water enters the tube box 201 through the liquid inlet pipe 203 and is heat-exchanged by the heat exchange tube 205 and the refrigerant medium connecting pipe on the shell 1. When it is necessary to adjust the heat exchange area, turn on the motor 207. The output rod of the motor 207 drives the connected double-headed threaded rod 208 to rotate, so that the double-headed threaded rod 208 drives the two sliders 209 to move away from each other. The slider 209 drives the baffle 210 to slide out of the chute. The baffle 210 blocks part of the water inlet of the heat exchange tube 205, thereby reducing the number of heat exchange tubes 205 and further adjusting the heat exchange area.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to the embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Shell-and-tube heat exchanger with heat transfer area adjustment function, comprising a housing (1) and two support seats (4), the top surfaces of the two support seats (4) are fixedly connected to the bottom surface of the housing (1), and it is characterized in that: An adjustment mechanism (2) and a filtering mechanism (3) are provided on the outer side of the housing (1), and the filtering mechanism (3) is located on the outer side of the adjustment mechanism (2). The adjustment mechanism (2) includes an adjustment component and a heat exchange component; The adjustment component is located on the surface of the heat exchange component; The heat exchange component includes two tube sheets (201). The two tube sheets (201) are respectively located on the left and right sides of the housing (1), and the two tube sheets (201) are symmetrically arranged. An inlet pipe (203) is provided on the left side of the left tube sheet (201), and an outlet pipe (204) is provided on the right side of the right tube sheet (201). A heat exchange tube (205) is provided inside the housing (1). There are multiple heat exchange tubes (205), and tube sheets (202) are provided on both the left and right sides of the heat exchange tube (205); The adjustment component includes a connecting plate (206). The side surface of the connecting plate (206) is fixedly connected to the inner wall of the left tube sheet (201). A motor (207) is fixedly connected to the surface of the left tube sheet (201). A double-headed threaded rod (208), a slider (209), and a baffle (210) are provided inside the left tube sheet (201). There are two sliders (209) and two baffles (210) symmetrically arranged. A chute is formed through the top surface of the connecting plate (206), and the baffle (210) is located inside the chute.

2. The shell-and-tube heat exchanger with a heat exchange area adjustment function according to claim 1, characterized in that: The closer surfaces of the two tube sheets (202) are respectively fixedly connected to the left and right side surfaces of the housing (1), and the left and right end faces of the heat exchange tube (205) respectively penetrate through the closer surfaces of the two tube sheets (202) and extend to the outside of the two tube sheets (202).

3. The shell-and-tube heat exchanger with a heat transfer area adjustment function according to claim 1, characterized in that: The inner wall of the tube sheet (201) is threadedly connected to the inner wall of the tube plate (202) through a first bolt.

4. The shell-and-tube heat exchanger with a heat transfer area adjustment function according to claim 1, characterized in that: The right end face of the inlet pipe (203) fixedly penetrates through the left side surface of the left tube sheet (201) and extends to the inside of the left tube sheet (201), and the left end face of the outlet pipe (204) fixedly penetrates through the right side surface of the right tube sheet (201) and extends to the inside of the right tube sheet (201).

5. The shell-and-tube heat exchanger with a heat transfer area adjustment function according to claim 1, characterized in that: The top end face of the double-headed threaded rod (208) penetrates through the bottom surfaces of the two sliders (209) and the bottom surface of the connecting plate (206) and extends above the sliders (209). The surface of the double-headed threaded rod (208) is rotationally connected to the inner wall of the connecting plate (206) through a bearing block, and the surface of the double-headed threaded rod (208) is threadedly connected to the inner walls of the two sliders (209).

6. The shell-and-tube heat exchanger with a heat transfer area adjustment function according to claim 1, characterized in that: The top end face of the output rod of the motor (207) penetrates through the surface of the left tube sheet (201) and extends to the inside of the left tube sheet (201). The top end face of the output rod of the motor (207) is fixedly connected to the bottom end face of the double-headed threaded rod (208), and the top end face of the double-headed threaded rod (208) is rotationally connected to the inner side surface of the left tube sheet (201) through a bearing block.

7. The shell-and-tube heat exchanger with a heat transfer area adjustment function according to claim 1, characterized in that: The right side surfaces of the two sliders (209) are respectively fixedly connected to the left side surfaces of the two baffles (210), and the right side surface of the baffle (210) is slidably connected to the left side surface of the left tube plate (202).

8. The shell-and-tube heat exchanger with a heat exchange area adjustment function according to claim 1, wherein: The filtering mechanism (3) includes a connecting pipe (301) and a filtering box (302). The inner wall of the flange of the connecting pipe (301) is threadedly connected to the inner wall of the flange of the liquid inlet pipe (203) through a second bolt. The left end face of the connecting pipe (301) fixedly penetrates through the right side face of the filtering box (302) and extends into the filtering box (302). A filter screen (303) is arranged on the left side of the connecting pipe (301). The side face of the filter screen (303) is fixedly connected to the inner side face of the filtering box (302). A water inlet pipe (304) is arranged on the left side of the filter screen (303). The top face of the water inlet pipe (304) fixedly penetrates through the inner top face of the filtering box (302) and extends above the filtering box (302).

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