A filtration device for heat exchangers

By designing a filter device that is easy to install and disassemble, the problem of the heat exchanger filter mechanism being difficult to disassemble and clean quickly has been solved, thus improving efficiency and performance.

CN224435165UActive Publication Date: 2026-06-30CHENGDU SHIHAO ELECTRIC APPLIANCE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU SHIHAO ELECTRIC APPLIANCE CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing heat exchanger's filter mechanism is difficult to install, disassemble, and clean quickly, resulting in low efficiency.

Method used

A filtration device was designed, comprising a mounting frame, a housing, a disassembly mechanism, and a filtration mechanism. The filtration mechanism is designed for easy installation and disassembly through threaded connections and sealing rings. The filtration mechanism consists of a mesh screen, a stainless steel mesh, a high-efficiency filter screen, and activated carbon filter cotton. It is used in conjunction with a water quality sensor and a probe for real-time monitoring.

Benefits of technology

It enables quick installation and disassembly of the filter mechanism, improves efficiency, facilitates cleaning of impurities, and enhances the working performance of the heat exchanger.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of heat exchanger technology and proposes a filtration device for heat exchangers, comprising: a heat exchanger body, a mounting bracket fixedly installed on the heat exchanger body, a housing fixedly installed on the top of the mounting bracket, and a disassembly mechanism disposed inside the housing. The disassembly mechanism includes a housing, a threaded interface, a connecting pipe, an internal threaded cap, an annular groove, an external threaded connecting base, and a circular limiting frame. By inserting the connecting pipe into the inlet pipe and using the annular groove on the outer wall of the connecting pipe to engage a sealing ring and prevent leakage between the connecting pipe and the inlet pipe, the housing is then threadedly rotated onto the external threaded connecting base. After connection, the connecting pipe is pulled downwards to bring the internal threaded cap into contact with the threaded interface, and then rotated to fix the inlet pipe to the housing, thus achieving the purpose of installing the filtration mechanism. Disassembly is performed in the reverse direction, effectively removing impurities from the filtration mechanism for easy reuse, thereby improving efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and specifically to a filtration device for heat exchangers. Background Technology

[0002] A heat exchanger (also known as a heat exchanger or heat exchange device) is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways.

[0003] Common heat exchangers require filtration. After prolonged use, the filtration system will filter out a large amount of impurities and needs to be cleaned. If it is not cleaned, it will affect the normal operation of the heat exchanger.

[0004] However, in implementing the relevant technology, the following problems were found in the existing technology: it is difficult to quickly install and disassemble the filter mechanism, which makes it difficult to disassemble the filter mechanism to clean impurities, and it is not convenient to reuse it, which is wasteful. Therefore, a filter device for heat exchangers is proposed to improve the efficiency of use. Utility Model Content

[0005] This utility model proposes a filtration device for heat exchangers, which solves the problem in related technologies that the filtration mechanism is difficult to install and disassemble quickly, making it difficult to remove impurities, inconvenient to reuse, and wasteful.

[0006] The technical solution of this utility model is as follows: A filtration device for a heat exchanger, comprising: a heat exchanger body;

[0007] A mounting bracket fixedly installed on the heat exchanger body, and a housing fixedly installed on top of the mounting bracket;

[0008] The disassembly mechanism is located inside the housing.

[0009] The filtration mechanism is located inside the disassembly mechanism;

[0010] The disassembly mechanism includes a housing, a threaded interface, a connecting pipe, an internal threaded cover, an annular groove, an external threaded connecting base, and a circular limiting frame.

[0011] An inlet pipe is installed through and fixedly mounted on the top of the housing;

[0012] The input pipe is fixedly installed through the bottom of the housing.

[0013] Preferably, the circular limiting frame is fixedly installed on the inner side wall of the housing, the external threaded connection base is fixedly installed on the top of the input pipe, the external threaded connection base is threadedly connected to the bottom of the housing, and a sealing ring is provided between the external threaded connection base and the housing.

[0014] Preferably, the annular groove is formed on the outer wall of the connecting pipe, and the connecting pipe is inserted into the inside of the inlet pipe.

[0015] Preferably, the internal threaded cap is fixedly installed at the bottom end of the connecting pipe, the threaded interface is fixedly installed at the top of the housing, and the threaded interface and the internal threaded cap are connected by threads.

[0016] Preferably, the filtration mechanism includes an installation cylinder, from top to bottom, a mesh screen, a stainless steel mesh, a high-efficiency filter screen, activated carbon filter cotton, and a fine grid that are fixedly installed on the inner side wall of the installation cylinder.

[0017] Preferably, a door is hinged to the front side of the housing, a glass window is provided on the door, a water quality sensor is fixedly installed through the door, a probe is fixedly installed through the external threaded connection base, and the probe is electrically connected to the water quality sensor.

[0018] The working principle and beneficial effects of this utility model are as follows:

[0019] By inserting the connecting pipe into the inlet pipe and using the annular groove on the outer wall of the connecting pipe to engage the sealing ring, leakage between the connecting pipe and the inlet pipe is prevented. Next, the housing is threadedly rotated onto the external threaded connecting base. After connection, the connecting pipe is pulled down to make the internal threaded cover contact the threaded interface. Then, it is rotated to fix the inlet pipe to the housing, thus achieving the purpose of installing the filter mechanism. Disassembly is performed in the reverse direction, which effectively disassembles the filter mechanism to clean impurities, making it easy to reuse and thus improving the efficiency of use. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;

[0022] Figure 2 This invention provides a three-dimensional structural diagram of the box body.

[0023] Figure 3 This invention provides a cross-sectional perspective view of the shell structure.

[0024] In the diagram: 1. Heat exchanger body; 2. Mounting frame; 3. Housing;

[0025] 4. Disassembly mechanism; 41. Housing; 42. Threaded interface; 43. Connecting pipe; 44. Internal threaded cap; 45. Annular groove; 46. External threaded connecting base; 47. Circular limiting frame;

[0026] 5. Door body; 6. Glass window; 7. Water quality sensor; 8. Probe; 9. Inlet pipe; 10. Input pipe;

[0027] 11. Filter mechanism; 111. Mounting cylinder; 112. Mesh screen; 113. Stainless steel mesh; 114. High-efficiency filter screen; 115. Activated carbon filter cotton; 116. Fine grid. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0029] Please see Figure 1 - Figure 3 A filtration device for a heat exchanger, comprising: a heat exchanger body 1;

[0030] A mounting bracket 2 is fixedly installed on the heat exchanger body 1, and a housing 3 is fixedly installed on the top of the mounting bracket 2;

[0031] The disassembly mechanism 4 is located inside the housing 3;

[0032] The filter mechanism 11 is located inside the disassembly mechanism 4;

[0033] The disassembly mechanism 4 includes a housing 41, a threaded interface 42, a connecting pipe 43, an internal threaded cover 44, an annular groove 45, an external threaded connecting base 46, and a circular limiting frame 47;

[0034] The inlet pipe 9 is fixedly installed through the top of the housing 3;

[0035] The input pipe 10 is fixedly installed through the bottom of the housing 3;

[0036] The circular limiting frame 47 is fixedly installed on the inner side wall of the housing 41, the external threaded connecting base 46 is fixedly installed on the top of the input pipe 10, the external threaded connecting base 46 is threadedly connected to the bottom of the housing 41, and a sealing ring is provided between the external threaded connecting base 46 and the housing 41. The annular groove 45 is opened on the outer side wall of the connecting pipe 43, the connecting pipe 43 is inserted into the inside of the inlet pipe 9, the internal threaded cover 44 is fixedly installed on the bottom end of the connecting pipe 43, the threaded interface 42 is fixedly installed on the top of the housing 41, and the threaded interface 42 and the internal threaded cover 44 are connected by threads.

[0037] This utility model provides a filtration device for a heat exchanger. In use, firstly, the connecting pipe 43 is inserted into the inlet pipe 9. An annular groove 45 is provided in the connecting pipe 43 to hold the sealing ring in place, preventing leakage between the connecting pipe 43 and the inlet pipe 9. Secondly, the housing 41 is threadedly rotated onto the external threaded connecting base 46. After connection, the connecting pipe 43 is pulled down to make the internal threaded cover 44 contact the threaded interface 42. Then, it is rotated to fix the inlet pipe 9 to the housing 41, thereby achieving the purpose of installing the filtration mechanism 11. Disassembly is performed in the reverse direction to effectively clean impurities from the filtration mechanism 11, making it easy to reuse.

[0038] Furthermore, the filtration mechanism 11 includes an installation cylinder 111, and from top to bottom, a mesh 112, a stainless steel mesh 113, a high-efficiency filter 114, an activated carbon filter cotton 115, and a fine grid 116 are fixedly installed on the inner wall of the installation cylinder 111.

[0039] Specifically, the mesh screen 112 and stainless steel mesh 113 are used to intercept large floating objects, branches, plastic bags, large pieces of garbage, etc., and are commonly found in the first line of defense at the inlet of sewage treatment plants. The high-efficiency filter screen 114 filters fine substances. The activated carbon filter cotton 115 is used to quickly remove residual chlorine, odors, some organic matter and suspended particles, significantly improving the sensory quality of water (taste, smell, clarity), and is inexpensive and easy to install. It is an indispensable "vanguard" in household water purification systems, but its limitations must be recognized—it cannot replace RO membranes or ultrafiltration membranes to remove heavy metals, microorganisms and salts. The fine grid 116 is used to intercept smaller suspended solids, fibers, hair, fruit pits, etc.

[0040] Furthermore, a door 5 is hinged to the front of the housing 3, a glass window 6 is provided on the door 5, a water quality sensor 7 is fixedly installed through the door 5, and a probe 8 is fixedly installed through the external threaded base 46, and the probe 8 is electrically connected to the water quality sensor 7.

[0041] Specifically, the probe 8 is used to detect the water quality inside the shell 41, and the detected information is recorded by the water quality sensor 7.

[0042] By installing a glass window 6 on the door 5, the equipment inside the cabinet 3 can be viewed effectively without opening the door 5.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A filter device for a heat exchanger, characterized in that include: Heat exchanger body (1); A mounting bracket (2) is fixedly installed on the heat exchanger body (1), and a housing (3) is fixedly installed on the top of the mounting bracket (2). The disassembly mechanism (4) is located inside the housing (3); The filter mechanism (11) is disposed inside the disassembly mechanism (4); The disassembly mechanism (4) includes a housing (41), a threaded interface (42), a connecting pipe (43), an internal threaded cover (44), an annular groove (45), an external threaded connecting base (46), and a circular limiting frame (47). An inlet pipe (9) is installed through and fixedly mounted on the top of the housing (3); The input pipe (10) is fixedly installed through the bottom of the housing (3).

2. A filter device for a heat exchanger according to claim 1, characterized in that: The circular limiting frame (47) is fixedly installed on the inner side wall of the housing (41), the external threaded connection base (46) is fixedly installed on the top of the input pipe (10), the external threaded connection base (46) is threadedly connected to the bottom of the housing (41), and a sealing ring is provided between the external threaded connection base (46) and the housing (41).

3. A filter device for a heat exchanger according to claim 2, characterised in that: The annular groove (45) is formed on the outer wall of the connecting pipe (43), and the connecting pipe (43) is inserted into the inside of the inlet pipe (9).

4. A filter device for a heat exchanger according to claim 3, characterized in that: The internal threaded cap (44) is fixedly installed at the bottom end of the connecting pipe (43), and the threaded interface (42) is fixedly installed at the top of the housing (41). The threaded interface (42) and the internal threaded cap (44) are connected by threads.

5. A filter device for a heat exchanger according to claim 1, characterized in that: The filtration mechanism (11) includes an installation cylinder (111), and from top to bottom, a mesh (112), a stainless steel mesh (113), a high-efficiency filter (114), an activated carbon filter cotton (115), and a fine grid (116) are fixedly installed on the inner wall of the installation cylinder (111).

6. A filter device for a heat exchanger according to claim 2, characterized in that: The front side of the housing (3) is hinged to a door (5), a glass window (6) is provided on the door (5), a water quality sensor (7) is fixedly installed through the door (5), a probe (8) is fixedly installed through the external threaded connection base (46), and the probe (8) is electrically connected to the water quality sensor (7).