Anti-blocking efficient shell-and-tube heat exchanger

By introducing a motor-driven hinge block and synchronizing rod system into the shell-and-tube heat exchanger, the problems of reduced heat transfer efficiency and downtime caused by tube blockage are solved, enabling continuous heating of the fluid and convenient cleaning of the tube bundle.

CN223726914UActive Publication Date: 2025-12-26刘静
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Patent Information

Application Number
CN202520214034.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-12-26
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

Existing shell-and-tube heat exchangers are prone to fouling due to impurity buildup during long-term use, which can lead to decreased heat transfer efficiency and potential blockages, requiring shutdown for cleaning and affecting production schedules.

Method used

A high-efficiency shell-and-tube heat exchanger with anti-clogging properties was designed. The three-way ball valve is synchronously rotated by a motor-driven hinge block and synchronizing rod system, which changes the flow direction, allows the fluid to continue flowing, and clears blockages in the tube bundle.

Benefits of technology

When the tube bundle is blocked, the fluid communication path is changed by the motor drive system, avoiding downtime for cleaning, ensuring that the fluid continues to be heated, and improving the efficiency and reliability of the heat exchanger.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an anti-blocking efficient shell-and-tube heat exchanger, which relates to the technical field of shell-and-tube heat exchangers, and comprises a heat exchanger mounting seat assembly, and two groups of shell-and-tube heat exchangers are mounted in the middle of the heat exchanger mounting seat assembly. A heat exchanger switching assembly used in cooperation with the heat exchanger installation base assembly is installed in the middle of the left side of the heat exchanger installation base assembly. When a tube bundle in a front heat exchanger shell is blocked, a motor rotates to drive a first hinge block to rotate, then synchronous rotation of three-way ball valves in a lower connecting base and an upper connecting base is achieved under the cooperation of two synchronous rods and a second hinge block, and then the communication direction of the three-way ball valves in ball valve grooves is changed; and at the moment, the front shell-and-tube heat exchanger can be disassembled and the tube bundle in the front shell-and-tube heat exchanger can be disassembled and cleaned, so that the problem of shutdown cleaning caused by blockage of the tube bundle is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the tube -shell heat exchanger technical field, more specifically, especially relate to a kind of anti-blocking high-efficiency tube -shell heat exchanger. BACKGROUND

[0002] Tube -shell heat exchanger is with the wall surface of tube bundle enclosed in shell as the heat transfer surface of partition wall heat exchanger, widely used in chemical industry, oil refining, petrochemical industry, refrigeration, air separation and pharmaceutical industry;

[0003] In prior art, the tube bundle of tube -shell heat exchanger is gradually deposited with impurities, minerals and the like in fluid on the surface of heat exchange pipe to form dirt in long-term use, this layer of dirt is equivalent to increase a thermal resistance barrier between hot fluid and cold fluid, hinder heat transfer, make the heat transfer efficiency of heat exchanger significantly decrease, seriously lead to tube bundle blockage, need to stop work, manually disassemble tube -shell heat exchanger to clean tube bundle, and then delay processing progress.

[0004] Therefore, in view of the above, the existing structure and the lack are improved, and an anti-blocking high-efficiency tube -shell heat exchanger is provided to achieve a more practical value. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides an anti-blocking high-efficiency tube -shell heat exchanger to solve the above problems.

[0006] The purpose and effect of the anti-blocking high-efficiency tube -shell heat exchanger are achieved by the following specific technical means:

[0007] An anti-blocking high-efficiency tube -shell heat exchanger, comprising a heat exchanger mounting seat assembly, two groups of tube -shell heat exchangers are mounted in the middle of the heat exchanger mounting seat assembly, a heat exchanger switching assembly matched with the heat exchanger mounting seat assembly is mounted in the middle of the left side of the heat exchanger mounting seat assembly.

[0008] Further, the tube -shell heat exchanger comprises a heat exchanger shell, a second fluid connection pipe and a second heat source connection pipe are installed at the upper end of the heat exchanger shell, a second fluid discharge pipe matched with the second fluid connection pipe and a second heat source discharge pipe matched with the second heat source connection pipe are installed at the lower end of the heat exchanger shell.

[0009] Further, the heat exchanger mounting seat assembly comprises a lower connecting seat, an upper connecting seat is installed at the upper end of the left side of the lower connecting seat.

[0010] Further, the heat exchanger switching assembly comprises a motor mounting seat installed between the top surface of the lower connecting seat and the bottom surface of the upper connecting seat, a motor is fixedly installed on the motor mounting seat, a first hinged block is fixedly installed at the rotating end of the motor, two synchronous rods are installed in parallel at the two ends of the first hinged block, and a second hinged block is hingedly installed between the two ends of the two synchronous rods.

[0011] Further, the heat exchanger switching assembly further comprises two groups of driving rods arranged in a vertical mode, three-way ball valves are fixedly installed at the left and right ends of the two groups of driving rods, and the right three-way ball valve is fixedly installed between the outer side wall surface of the adjacent second hinged block.

[0012] Further, the lower connecting seat and the lower connecting seat are provided with ball valve grooves matched with the three-way ball valves and the driving rods.

[0013] Further, the top surface of the upper connecting seat is provided with a first heat source connecting pipe and a first fluid connecting pipe, the bottom surface of the upper connecting seat is provided with two first fluid discharge pipes matched with the first fluid connecting pipe, the bottom surface of the upper connecting seat is further provided with two first heat source discharge pipes matched with the first heat source connecting pipe, the top surface of the lower connecting seat is provided with two third fluid connecting pipes and two third heat source body connecting pipes, the bottom surface of the lower connecting seat is provided with a third fluid discharge pipe matched with the two third fluid connecting pipes, and the bottom surface of the lower connecting seat is further provided with a third heat source discharge pipe matched with the two third heat source body connecting pipes.

[0014] Compared with the prior art, the heat exchanger switching assembly has the following beneficial effects:

[0015] When the tube bundle in the front side heat exchanger shell is blocked, the first hinged block is driven to rotate by the motor, and then the synchronous rotation of the three-way ball valves in the lower connecting seat and the upper connecting seat is realized under the cooperation of the two synchronous rods and the second hinged block, so that the communication direction of the three-way ball valves in the ball valve groove is changed, that is, the communication with the rear side tube shell heat exchanger is realized, and then the continuous heating of the fluid is realized, at this time, the front side tube shell heat exchanger can be disassembled and cleaned, and then the problem of shutdown cleaning caused by tube bundle blockage is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the tube shell heat exchanger of the utility model.

[0018] Figure 3 It is a left side sectional view of the heat exchanger mounting seat assembly of the utility model.

[0019] Figure 4It is the heat exchanger mounting seat assembly and heat exchanger switching assembly schematic view of the utility model.

[0020] Figure 5 It is the heat exchanger mounting seat assembly front side sectional view of the utility model.

[0021] Figure 6 It is the heat exchanger switching assembly schematic view of the utility model.

[0022] In the drawing, the corresponding relationship of component name and drawing number is as follows:

[0023] 1, tube shell heat exchanger;

[0024] 101, heat exchanger shell;102, second heat source connecting pipe;103, second heat source discharge pipe;104, second fluid connecting pipe;105, second fluid discharge pipe;

[0025] 2, heat exchanger mounting seat assembly;

[0026] 201, lower connecting seat;

[0027] 2011, third fluid connecting pipe;2012, third fluid discharge pipe;2013, third heat source body connecting pipe;2014, third heat source discharge pipe;

[0028] 202, upper connecting seat;

[0029] 2021, first heat source connecting pipe;2022, first heat source discharge pipe;2023, first fluid connecting pipe;2024, first fluid discharge pipe;2025, ball valve groove;

[0030] 3, heat exchanger switching assembly;

[0031] 301, motor mounting seat;302, motor;303, first hinged block;304, synchronous rod;305, second hinged block;306, three-way ball valve;307, drive rod. DETAILED DESCRIPTION

[0032] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is merely meant to provide a better understanding of the subject matter described herein and can include changes, modifications, additions or omissions of the functions and arrangements of the elements discussed without departing from the scope of the subject matter described in the present specification. Various examples can omit, substitute or add various procedures or components as appropriate, and the specific details of the examples can vary from these described. Additionally, features described as taking place in succession or simultaneously can be performed in between these described, and the manner of performing each activity can be performed in an order different than those described.

[0033] EMBODIMENT

[0034] As the drawingsFigure 1 To the accompanying Figure 6 drawings:

[0035] The utility model discloses a high -efficient shell -and -tube heat exchanger prevents the block, which is characterized in that: including heat exchanger mounting seat subassembly 2, two groups of shell -and -tube heat exchanger 1 are installed to the middle part of heat exchanger mounting seat subassembly 2, and heat exchanger switching subassembly 3 that cooperates heat exchanger mounting seat subassembly 2 is installed to the left middle part of heat exchanger mounting seat subassembly 2;

[0036] Shell -and -tube heat exchanger 1 includes heat exchanger shell 101, the second fluid connection pipe 104 and the second heat source connection pipe 102 are installed to the upper end of heat exchanger shell 101, and the second fluid discharge pipe 105 that matches the second fluid connection pipe 104 and the second heat source discharge pipe 103 that match the second heat source connection pipe 102 are installed to the lower end of heat exchanger shell 101;

[0037] Heat exchanger mounting seat subassembly 2 includes lower connecting seat 201, and the upper end left side of lower connecting seat 201 is installed with upper connecting seat 202;

[0038] Heat exchanger switching subassembly 3 includes motor mounting seat 301 installed between the top surface of lower connecting seat 201 and the bottom surface of upper connecting seat 202, and the motor 302 is fixedly installed on motor mounting seat 301, the rotating end of motor 302 is fixedly installed with first hinged block 303, and two synchronous bars 304 are installed in parallel at the both ends of first hinged block 303, and second hinged block 305 is hingedly installed between the both ends of two synchronous bars 304;

[0039] Heat exchanger switching subassembly 3 further includes two groups of driving rods 307 arranged in an up-down mode, and three-way ball valve 306 is fixedly installed at the left and right ends of two groups of driving rods 307, and the right side three-way ball valve 306 is fixedly installed between the outer side wall surface of adjacent second hinged block 305.

[0040] On the above, when the tube bundle in the front heat exchanger shell 101 is blocked, the first hinged block 303 is rotated by the motor 302, and the synchronous rotation of the three-way ball valve 306 in the lower connecting seat 201 and the upper connecting seat 202 is realized under the cooperation of the two synchronous bars 304 and the second hinged block 305, and the communication direction of the three-way ball valve 306 in the ball valve groove 2025 is changed, that is, the communication with the rear shell -and -tube heat exchanger 1 is realized, and the continuous heating of the fluid is realized.

[0041] As shown in the accompanying Figure 1 To the accompanying Figure 6 Drawings, in some embodiments, ball valve groove 2025 matching three-way ball valve 306 and driving rod 307 is opened between lower connecting seat 201 and lower connecting seat 201;

[0042] The top surface of the upper connecting seat 202 is provided with a first heat source connecting pipe 2021 and a first fluid connecting pipe 2023, the bottom surface of the upper connecting seat 202 is provided with two first fluid discharge pipes 2024 matched with the first fluid connecting pipe 2023, the bottom surface of the upper connecting seat 202 is also provided with two first heat source discharge pipes 2022 matched with the first heat source connecting pipe 2021, the top surface of the lower connecting seat 201 is provided with two third fluid connecting pipes 2011 and two third heat source body connecting pipes 2013, the bottom surface of the lower connecting seat 201 is provided with a third fluid discharge pipe 2012 matched with the two third fluid connecting pipes 2011, and the bottom surface of the lower connecting seat 201 is also provided with a third heat source discharge pipe 2014 matched with the two third heat source body connecting pipes 2013;

[0043] When the heat exchanger switching assembly 3 remains in the initial state, fluid enters the three-way ball valve 306 through the first fluid connecting pipe 2023, passes through the middle part of the three-way ball valve 306, and enters the front first fluid discharge pipe 2024, and then the fluid enters the second fluid connecting pipe 104 of the front heat exchanger shell 101 through the first fluid discharge pipe 2024, is transported to the second fluid discharge pipe 105 by the tube bundle in the heat exchanger shell 101, and then enters the third fluid connecting pipe 2011 of the front lower connecting seat 201 through the second fluid discharge pipe 105, and then the fluid enters the three-way ball valve 306, and is discharged through the third fluid discharge pipe 2012 at the bottom of the lower connecting seat 201;

[0044] During the fluid flow process, the heat source enters the three-way ball valve 306 through the first heat source connecting pipe 2021, passes through the middle part of the three-way ball valve 306, and enters the front first heat source discharge pipe 2022, and then the heat source enters the second heat source connecting pipe 102 of the front heat exchanger shell 101 through the first heat source discharge pipe 2022, and then enters the third heat source body connecting pipe 2013 of the front lower connecting seat 201 through the second heat source discharge pipe 103 of the front heat exchanger shell 101, and then the heat source is discharged through the third heat source discharge pipe 2014 at the bottom of the lower connecting seat 201 after passing through the three-way ball valve 306, so as to realize the heating process of the fluid;

[0045] The specific use and role of the embodiment are as follows: the first fluid connecting pipe 2023 is connected with a fluid pipe, the first heat source connecting pipe 2021 is connected with a heat source pipe, and then when the heat exchanger switching assembly 3 remains in the initial state, the fluid enters the three-way ball valve 306 through the first fluid connecting pipe 2023, and then enters the front first fluid discharge pipe 2024 through the middle part of the three-way ball valve 306, and then the fluid enters the second fluid connecting pipe 104 of the front heat exchanger shell 101 through the first fluid discharge pipe 2024, is transported to the second fluid discharge pipe 105 through the tube bundle in the heat exchanger shell 101, and then enters the third fluid connecting pipe 2011 of the front side of the lower connecting seat 201 through the second fluid discharge pipe 105, and then the fluid enters the three-way ball valve 306, and is discharged through the third fluid discharge pipe 2012 at the bottom of the lower connecting seat 201;

[0046] In the above fluid flow process, the heat source enters the three-way ball valve 306 through the first heat source connecting pipe 2021, and then enters the front first heat source discharge pipe 2022 through the middle part of the three-way ball valve 306, and then the heat source enters the second heat source connecting pipe 102 of the front heat exchanger shell 101 through the first heat source discharge pipe 2022, and then enters the third heat source body connecting pipe 2013 of the front side of the lower connecting seat 201 through the second heat source discharge pipe 103 of the front heat exchanger shell 101, and then the heat source is discharged through the third heat source discharge pipe 2014 at the bottom of the lower connecting seat 201 after the three-way ball valve 306;

[0047] The above realizes the heating process of the fluid;

[0048] When the tube bundle in the front heat exchanger shell 101 is blocked, the first hinged block 303 is driven to rotate by the motor 302, and then the synchronous rotation of the three-way ball valve 306 in the lower connecting seat 201 and the upper connecting seat 202 is realized under the cooperation of the two synchronous rods 304 and the second hinged block 305, and then the communication direction of the three-way ball valve 306 in the ball valve groove 2025 is changed, that is, the rear tube shell heat exchanger 1 is communicated, and then the continuous heating of the fluid is realized, at this time, the front tube shell heat exchanger 1 can be disassembled and cleaned, and then the problem of shutdown cleaning caused by the blockage of the tube bundle is avoided.

[0049] The embodiments of the present application are given for the purpose of illustration and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present application, and to enable those of ordinary skill in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A high efficiency shell and tube heat exchanger with anti-blocking, characterized in that: The application relates to a heat exchanger installation seat assembly (2) which is provided with two groups of tubular heat exchangers (1) in the middle part, and a heat exchanger switching assembly (3) is arranged on the left middle part of the heat exchanger installation seat assembly (2).

2. The anti-blocking high efficiency shell and tube heat exchanger as claimed in claim 1 wherein: The tubular heat exchanger (1) comprises a heat exchanger shell (101), the upper end of the heat exchanger shell (101) is provided with a second fluid connection pipe (104) and a second heat source connection pipe (102), the lower end of the heat exchanger shell (101) is provided with a second fluid discharge pipe (105) matched with the second fluid connection pipe (104) and a second heat source discharge pipe (103) matched with the second heat source connection pipe (102).

3. A high efficiency tube-in-shell heat exchanger with anti-blocking as claimed in claim 2 wherein: The heat exchanger installation seat assembly (2) comprises a lower connecting seat (201), the upper end of the lower connecting seat (201) is provided with an upper connecting seat (202) on the left side.

4. A high efficiency tube-in-shell heat exchanger with anti-blocking as claimed in claim 3 wherein: The heat exchanger switching assembly (3) comprises a motor installation seat (301) arranged between the top surface of the lower connecting seat (201) and the bottom surface of the upper connecting seat (202), a motor (302) is fixedly arranged on the motor installation seat (301), a first hinged block (303) is fixedly arranged on the rotating end of the motor (302), two synchronous rods (304) are arranged in parallel on the two ends of the first hinged block (303), and a second hinged block (305) is hingedly arranged between the two ends of the two synchronous rods (304).

5. A high efficiency tube-in-shell heat exchanger with anti-blocking as claimed in claim 4 wherein: The heat exchanger switching assembly (3) further comprises two groups of driving rods (307) arranged in a vertical mode, a three-way ball valve (306) is fixedly arranged on the left and right ends of the two groups of driving rods (307), and the right three-way ball valve (306) is fixedly arranged between the outer wall surface of the adjacent second hinged block (305).

6. A high efficiency tube-in-shell heat exchanger with anti-blocking as claimed in claim 5 wherein: Ball valve grooves (2025) matched with the three-way ball valves (306) and the driving rods (307) are formed between the lower connecting seat (201) and the upper connecting seat (202).

7. A high efficiency tube-in-shell heat exchanger with anti-blocking as claimed in claim 6 wherein: The top surface of the upper connecting seat (202) is provided with a first heat source connection pipe (2021) and a first fluid connection pipe (2023), the bottom surface of the upper connecting seat (202) is provided with two first fluid discharge pipes (2024) matched with the first fluid connection pipe (2023), the bottom surface of the upper connecting seat (202) is further provided with two first heat source discharge pipes (2022) matched with the first heat source connection pipe (2021), the top surface of the lower connecting seat (201) is provided with two third fluid connection pipes (2011) and two third heat source body connection pipes (2013), the bottom surface of the lower connecting seat (201) is provided with a third fluid discharge pipe (2012) matched with the two third fluid connection pipes (2011), and the bottom surface of the lower connecting seat (201) is further provided with a third heat source discharge pipe (2014) matched with the two third heat source body connection pipes (2013).