Fabricated shell-and-tube heat exchanger

Abstract

The utility model discloses an assembly type shell-and-tube heat exchanger which comprises an assembly type shell-and-tube heat exchanger body. The anti-blocking mechanism comprises a mounting frame fixedly connected to the outer wall of the assembly type shell-and-tube heat exchanger body, an air cylinder is fixedly connected to one side of an inner cavity of the mounting frame, a connecting rod is fixedly connected to the movable end of the air cylinder, an electric telescopic push rod is fixedly connected to the outer wall of the tail end of the connecting rod, and a connector is fixedly connected to the movable end of the electric telescopic push rod. The outer wall of the connector is fixedly connected with a supporting rod, the outer wall of the tail end of the supporting rod is rotationally connected with a connecting cylinder, the outer wall of the connecting cylinder is fixedly connected with anti-blocking scrapers and a moving mechanism at equal intervals, the moving mechanism comprises a motor fixedly connected to the other side of the inner cavity of the mounting frame, and the output end of the motor is fixedly connected with a telescopic rod. The cleaning device has the advantage of being capable of dredging when balls doped in cleaning liquid and cleaned impurities block the water outlet when the assembly type shell-and-tube heat exchanger main body is cleaned.

Description

Technical Field

[0001] This utility model relates to the field of assembled shell and tube heat exchangers, and in particular to an assembled shell and tube heat exchanger. Background Technology

[0002] Prefabricated shell and tube heat exchangers are a type of heat exchange equipment widely used in chemical, petroleum and petrochemical industries. Based on the temperature difference compensation measures adopted, they can be divided into several types, such as fixed tube sheet type, floating head type, stuffing box type and U-tube type.

[0003] In existing assembled shell and tube heat exchangers, sediment often accumulates inside the tubes during actual use, requiring timely cleaning. Currently, small balls are added to the cleaning solution to improve the cleaning effect by colliding with the tube walls. However, this cleaning method can easily cause the balls and the cleaned impurities to clog the drain outlet. If not handled promptly, this can affect the heat exchanger's heat exchange efficiency and reduce the equipment's lifespan. Therefore, there is a need for an assembled shell and tube heat exchanger that can promptly unclog the drain outlet. Utility Model Content

[0004] The purpose of this utility model is to provide an assembled shell and tube heat exchanger to solve the problem mentioned in the background art, where small balls are added to the cleaning solution during cleaning to improve the cleaning effect by colliding with the tube wall. However, this cleaning method can easily cause the balls and the impurities being cleaned to clog the drain outlet. If not dealt with in time, it can affect the heat exchanger's heat exchange effect and reduce the service life of the equipment.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an assembled shell-and-tube heat exchanger, comprising:

[0007] The main body of a prefabricated shell-and-tube heat exchanger;

[0008] An anti-clogging mechanism includes a mounting bracket fixedly connected to the outer wall of the assembled tube heat exchanger body. A cylinder is fixedly connected to one side of the inner cavity of the mounting bracket. A connecting rod is fixedly connected to the movable end of the cylinder. An electric telescopic push rod is fixedly connected to the outer wall of the end of the connecting rod. A connector is fixedly connected to the movable end of the electric telescopic push rod. A support rod is fixedly connected to the outer wall of the connector. A connecting cylinder is rotatably connected to the outer wall of the end of the support rod. Anti-clogging scrapers are fixedly connected at equal intervals to the outer wall of the connecting cylinder.

[0009] Furthermore, it also includes a moving mechanism, which includes a motor fixedly connected to the other side of the inner cavity of the mounting frame, a telescopic rod fixedly connected to the output end of the motor, and a synchronization frame fixedly connected to the outer wall of the movable end of the telescopic rod;

[0010] Furthermore, the inner wall of the other end of the synchronous frame is rotatably connected to the outer wall of the connecting rod, and the outer wall of the end of the telescopic rod is fixedly connected with an active tooth, and the outer wall of the active tooth is engaged with a driven tooth;

[0011] Furthermore, a connecting frame is fixedly connected at equal intervals to the inner wall of the driven tooth, the inner wall of the connecting frame is fixedly connected to the outer wall of the connecting cylinder, a protective cover is fixedly connected to the outer wall of the driven tooth, and a telescopic cylinder is spring-connected to the inner cavity of the protective cover.

[0012] Furthermore, it also includes a filtration mechanism, which includes a support base placed on the ground corresponding to the output end of the assembled tube heat exchanger body, and a fixed bucket is fixedly connected to the top outer wall of the support base;

[0013] Furthermore, the inner wall of the fixed barrel is spring-connected to a telescopic barrel, the inner wall of the telescopic barrel is fixedly connected to a filter screen, and the bottom outer wall of the fixed barrel is fixedly connected to a discharge pipe.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] This invention relates to a method for clearing blockages in the main body of a prefabricated shell-and-tube heat exchanger. When the main body of the prefabricated shell-and-tube heat exchanger becomes clogged, the delivery pipe connected to the drain outlet of the main body is removed. The connecting rod is manually rotated to align with the main body of the prefabricated shell-and-tube heat exchanger. Then, the electric telescopic push rod is opened, and the connecting rod moves the support rod. The support rod then aligns the connecting cylinder with the central axis of the drain outlet, aligning the driven and driving teeth. The cylinder is then opened, and the connecting cylinder extends into the drain outlet of the prefabricated shell-and-tube heat exchanger. The synchronous frame drives the driving tooth to move synchronously with the support rod. The motor is then turned on, and the driving tooth rotates the driven tooth. The driven tooth, through the connecting cylinder, drives the anti-clogging scraper to clear the blockage at the drain outlet of the prefabricated shell-and-tube heat exchanger. This method can clear blockages caused by spherical particles and impurities mixed in with the cleaning fluid during the cleaning of the prefabricated shell-and-tube heat exchanger.

[0016] Based on the first beneficial effect, the unblocked liquid is diverted through the telescopic cylinder and protective cover. When the liquid falls into the fixed bucket, it is filtered by the filter screen to remove impurities and balls. The filtered liquid is then transported through the drain pipe. When unblocking stops, the cylinder drives the connecting cylinder to move towards the ground. When it moves to contact and squeeze the telescopic cylinder, the telescopic cylinder is retracted into the fixed bucket. This avoids interference between the telescopic cylinder and the fixed bucket on the moving connecting cylinder, reduces the contact of unblocked liquid with the active teeth, and prevents the active teeth from affecting their normal use. It also filters the discharged liquid. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the anti-clogging mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the filtration mechanism of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Assembled shell and tube heat exchanger body; 201. Mounting bracket; 202. Cylinder; 203. Connecting rod; 204. Electric telescopic push rod; 205. Connector; 206. Support rod; 207. Connecting cylinder; 208. Anti-clogging scraper; 301. Motor; 302. Telescopic rod; 303. Synchronizing frame; 304. Driving gear; 305. Driven gear; 306. Connecting frame; 307. Protective cover; 308. Telescopic cylinder; 401. Support base; 402. Fixed barrel; 403. Discharge pipe; 404. Telescopic barrel; 405. Filter screen. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-3 As shown, this embodiment is an assembled shell-and-tube heat exchanger, comprising:

[0027] 1. Main body of assembled shell and tube heat exchanger;

[0028] The heat exchange and cooling are achieved through the assembled shell and tube heat exchanger body 1.

[0029] The anti-clogging mechanism includes a mounting bracket 201 fixedly connected to the outer wall of the assembled tube heat exchanger body 1. A cylinder 202 is fixedly connected to one side of the inner cavity of the mounting bracket 201. A connecting rod 203 is fixedly connected to the movable end of the cylinder 202. An electric telescopic push rod 204 is fixedly connected to the outer wall of the end of the connecting rod 203. A connector 205 is fixedly connected to the movable end of the electric telescopic push rod 204. A support rod 206 is fixedly connected to the outer wall of the connector 205. A connecting cylinder 207 is rotatably connected to the outer wall of the end of the support rod 206. Anti-clogging scrapers 208 are fixedly connected at equal intervals to the outer wall of the connecting cylinder 207.

[0030] The mounting bracket 201 supports the cylinder 202 and the motor 301. The cylinder 202 drives the connecting rod 203 to move. The connecting rod 203 supports the electric telescopic push rod 204. When the electric telescopic push rod 204 is opened, the connecting head 205 drives the support rod 206 to move. The support rod 206 supports and moves the connecting cylinder 207. The connecting cylinder 207 drives the anti-clogging scraper 208 into the drain outlet to unclog the drain.

[0031] The moving mechanism includes a motor 301 fixedly connected to the other side of the inner cavity of the mounting frame 201, a telescopic rod 302 fixedly connected to the output end of the motor 301, and a synchronous frame 303 fixedly connected to the outer wall of the movable end of the telescopic rod 302.

[0032] When the motor 301 is turned on, the drive gear 304 is rotated via the telescopic rod 302, and the drive gear 304 and the driven gear 305 move synchronously via the synchronous frame 303.

[0033] The inner wall of the other end of the synchronous frame 303 is rotatably connected to the outer wall of the connecting rod 203. The outer wall of the end of the telescopic rod 302 is fixedly connected to the active tooth 304, and the outer wall of the active tooth 304 is engaged with the driven tooth 305.

[0034] The driven gear 305 is rotated by the driving gear 304;

[0035] A connecting frame 306 is fixedly connected at equal intervals to the inner wall of the driven gear 305. The inner wall of the connecting frame 306 is fixedly connected to the outer wall of the connecting cylinder 207. A protective cover 307 is fixedly connected to the outer wall of the driven gear 305. A telescopic cylinder 308 is spring-connected to the inner cavity of the protective cover 307.

[0036] The connecting frame 306 allows the drained liquid to be transported, supports the driven tooth 305, drives the connecting cylinder 207 to rotate, reduces direct contact between the liquid and the driving tooth 304, and keeps the protective cover 307 connected to the drain outlet when passing through the telescopic cylinder 308.

[0037] Working principle: When the main body 1 of the assembled shell and tube heat exchanger becomes blocked, remove the conveying pipe connected to the drain port of the main body 1 of the assembled shell and tube heat exchanger. Manually rotate the connecting rod 203 to make it parallel to the main body 1 of the assembled shell and tube heat exchanger. Open the electric telescopic push rod 204 to drive the support rod 206 to move through the connector 205. The support rod 206 drives the connecting cylinder 207 to rejoin the central axis of the drain port, so that the driven tooth 305 and the driving tooth 304 are aligned. Open the cylinder 202 to drive the connecting cylinder 207 to extend into the drain port of the main body 1 of the assembled shell and tube heat exchanger through the support rod 206. The synchronous frame 303 drives the driving tooth 304 to move synchronously with the support rod 206. Open the motor 301 to drive the driven tooth 305 to rotate through the driving tooth 304. The driven tooth 305 drives the anti-blockage scraper 208 through the connecting cylinder 207 to clear the drain port of the main body 1 of the assembled shell and tube heat exchanger.

[0038] This step can be used to clear blockages at the drain outlet caused by spheres mixed in with the cleaning fluid and impurities removed during the cleaning of the assembled tube heat exchanger body 1.

[0039] Please see Figure 1-3 As shown, this embodiment, based on the above embodiment, further includes:

[0040] The filtration mechanism includes a support base 401 placed on the ground corresponding to the output end of the assembled tube heat exchanger body 1, and a fixed bucket 402 is fixedly connected to the top outer wall of the support base 401.

[0041] The fixed bucket 402 is supported by the support base 401;

[0042] A telescopic bucket 404 is spring-connected to the inner wall of the fixed bucket 402. A filter screen 405 is fixedly connected to the inner wall of the telescopic bucket 404. A discharge pipe 403 is fixedly connected to the outer wall of the bottom of the fixed bucket 402.

[0043] The telescopic tank 404 is elastically supported by the fixed tank 402, the telescopic tank 404 extends the liquid holding volume, the liquid is filtered by the filter screen 405, and the filtered liquid is transported by the discharge pipe 403.

[0044] Working principle: The liquid being dredged is guided through the telescopic cylinder 308 and the protective cover 307. When the liquid falls into the fixed bucket 402, it is filtered by the filter screen 405 to remove impurities and balls. The filtered liquid is then transported through the discharge pipe 403. When the dredging stops, the cylinder 202 drives the connecting cylinder 207 to move towards the ground. The cylinder moves until it contacts and squeezes the telescopic cylinder 404, causing the telescopic cylinder 404 to retract into the fixed bucket 402.

[0045] This step can prevent the telescopic bucket 404 and the fixed bucket 402 from interfering with the moving connecting bucket 207, reduce the contact of the drained liquid with the active tooth 304, and filter the drained liquid.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prefabricated shell-and-tube heat exchanger, characterized in that, include: Assembly-type shell and tube heat exchanger body (1); The anti-clogging mechanism includes a mounting bracket (201) fixedly connected to the outer wall of the assembled tube heat exchanger body (1). A cylinder (202) is fixedly connected to one side of the inner cavity of the mounting bracket (201). A connecting rod (203) is fixedly connected to the movable end of the cylinder (202). An electric telescopic push rod (204) is fixedly connected to the outer wall of the end of the connecting rod (203). A connector (205) is fixedly connected to the movable end of the electric telescopic push rod (204). A support rod (206) is fixedly connected to the outer wall of the connector (205). A connecting cylinder (207) is rotatably connected to the outer wall of the end of the support rod (206). Anti-clogging scrapers (208) are fixedly connected at equal intervals to the outer wall of the connecting cylinder (207).

2. The assembled shell-and-tube heat exchanger according to claim 1, characterized in that, It also includes a moving mechanism, which includes a motor (301) fixedly connected to the other side of the inner cavity of the mounting frame (201), a telescopic rod (302) fixedly connected to the output end of the motor (301), and a synchronous frame (303) fixedly connected to the outer wall of the movable end of the telescopic rod (302).

3. The assembled shell-and-tube heat exchanger according to claim 2, characterized in that, The inner wall of the other end of the synchronous frame (303) is rotatably connected to the outer wall of the connecting rod (203), and the outer wall of the end of the telescopic rod (302) is fixedly connected to the active tooth (304), and the outer wall of the active tooth (304) is engaged with the driven tooth (305).

4. The assembled shell-and-tube heat exchanger according to claim 3, characterized in that, The driven tooth (305) is fixedly connected to the inner wall of the connecting frame (306) at equal intervals. The inner wall of the connecting frame (306) is fixedly connected to the outer wall of the connecting cylinder (207). The outer wall of the driven tooth (305) is fixedly connected to the protective cover (307). The inner cavity of the protective cover (307) is spring-connected to the telescopic cylinder (308).

5. A prefabricated shell-and-tube heat exchanger according to claim 4, characterized in that, It also includes a filtration mechanism, which includes a support base (401) placed on the ground and corresponding to the output end of the assembled tube heat exchanger body (1), and a fixed bucket (402) is fixedly connected to the top outer wall of the support base (401).

6. A prefabricated shell-and-tube heat exchanger according to claim 5, characterized in that, The inner wall of the fixed barrel (402) is spring-connected to a telescopic barrel (404), the inner wall of the telescopic barrel (404) is fixedly connected to a filter screen (405), and the bottom outer wall of the fixed barrel (402) is fixedly connected to a discharge pipe (403).

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