Heat exchanger piping with plug-in structure

By adopting a direct-insertion structure and automatic welding in the heat exchanger piping, the problem of easy cracking and leakage at the weld points was solved, thus improving the reliability and service life of the equipment.

CN224340757UActive Publication Date: 2026-06-09LOVAT HEAT EXCHANGE SYST (GUANGDONG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LOVAT HEAT EXCHANGE SYST (GUANGDONG) CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In traditional heat exchanger piping, weld joints are prone to cracking and leakage, affecting the normal operation and service life of the equipment.

Method used

Adopting a direct-insertion structure, the liquid inlet tube, S-shaped heat exchange tube, heat-conducting fins, and liquid outlet tube are designed and automatically welded using a welding machine, reducing the number of weld points and connecting the liquid inlet tube, delivery tube, and liquid outlet tube, thus avoiding the need for joint welds.

Benefits of technology

This improves the reliability of the heat exchanger, reduces the risk of weld point leakage, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224340757U_ABST
    Figure CN224340757U_ABST
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Abstract

This utility model discloses a heat exchanger piping with a direct-insertion structure, including: a housing; and side connecting seats symmetrically arranged on the outer side of the housing. The beneficial effects of this utility model are: by setting an inlet pipe, an S-shaped heat exchange tube, heat-conducting fins, and an outlet pipe, the heat conduction effect is improved by multiple heat-conducting fins equidistantly arranged on the outer side of the S-shaped heat exchange tube. High-temperature hot oil is injected into the S-shaped heat exchange tube through the inlet pipe, and after heat exchange by the liquid in the housing, it is discharged through the outlet pipe. By setting a flange, when connecting the inlet pipe and the delivery pipe, and connecting the outlet pipe and the outlet pipe, the flange on one side of the delivery pipe and the outlet pipe cooperates with the inlet pipe and the delivery pipe. Automatic welding is used, and there are no more joint welding points between the manifold and the heat exchange tube, reducing the overall welding points and thus increasing the reliability of the heat exchanger.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchanger piping technology, specifically to a heat exchanger piping with a direct insertion structure. Background Technology

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It enables heat to be transferred from a higher-temperature fluid to a lower-temperature fluid, allowing the fluid temperature to reach the specified parameters of the process flow to meet the requirements of the process conditions. It is also one of the main devices for improving energy efficiency. In the traditional piping structure of heat exchangers, the connection between the manifold and the heat exchange tube is usually made by splicing and welding. This welding method will form multiple weld points at the connection, and the weld points are often the most problematic parts of the equipment. In actual operation, the weld points are prone to cracks and leaks, which seriously affect the normal operation and service life of the heat exchanger. The more weld points there are, the more likely leaks will occur. Utility Model Content

[0003] The purpose of this utility model is to provide a heat exchanger piping with a direct insertion structure to solve the problems mentioned in the background art, such as the easy occurrence of cracks and leaks at the weld points during actual operation, which seriously affects the normal operation and service life of the heat exchanger, and the increased likelihood of leaks due to the presence of multiple weld points.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heat exchanger piping with a direct-insertion structure, comprising:

[0005] chassis;

[0006] Side connectors are symmetrically arranged on the outside of the housing;

[0007] The mounting frames are symmetrically installed on one side of the side connector. One side of the mounting frame is provided with multiple No. 1 pipe supports, and the other side of the mounting frame is provided with multiple No. 2 pipe supports.

[0008] An infusion tube is installed inside the first pipe support, and an outlet tube is installed inside the second pipe support.

[0009] A fixed support plate is fixedly connected to the inner side of the casing at equal intervals. Multiple S-shaped heat exchange tubes are fixedly connected to the inside of the fixed support plate at equal intervals.

[0010] The liquid inlet tube is located at one end of the S-shaped heat exchange tube, and the other end of the S-shaped heat exchange tube is fixedly connected to the liquid outlet tube. One of the side connecting seats is fixedly connected to the liquid inlet tube and the liquid outlet tube. Multiple flanges that cooperate with the liquid inlet tube and the liquid outlet tube are opened on one side of the inlet tube and the liquid outlet tube.

[0011] As a preferred embodiment of this utility model: a plurality of No. 1 liquid inlet pipes are fixedly connected at equal intervals to the top of the housing, a No. 1 collection box is fixedly connected to the top of the No. 1 liquid inlet pipe, and a No. 2 liquid inlet pipe is fixedly connected to the top of the No. 1 collection box.

[0012] As a preferred embodiment of this utility model: a plurality of No. 2 drain pipes are fixedly connected at equal intervals to the bottom of the casing, a No. 2 collection box is fixedly connected to the bottom end of the No. 2 drain pipe, a No. 1 drain pipe is fixedly connected to the bottom of the No. 2 collection box, and a solenoid valve is installed on the No. 2 drain pipe.

[0013] As a preferred embodiment of this utility model: the top and bottom of the mounting frame are symmetrically fixed with mounting hole plates, and one side of one of the side connecting seats is fixed with multiple positioning frames that cooperate with the mounting hole plates.

[0014] As a preferred embodiment of this utility model: a plurality of fixing screws that cooperate with the mounting plate are fixedly connected to one side of the side connecting seat, and a limit nut is installed on the outer side of the fixing screw.

[0015] As a preferred embodiment of this utility model: multiple heat-conducting fins are fixedly connected at equal intervals on the outer side of the S-shaped heat exchange tube, and multiple liquid guide plates are fixedly connected on the inner side of the casing, and the liquid guide plates are fixedly connected to the fixed support plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model improves the heat conduction effect by setting up an inlet pipe, an S-shaped heat exchange tube, heat-conducting fins, and an outlet pipe. Multiple heat-conducting fins equidistantly arranged on the outside of the S-shaped heat exchange tube are used to improve the heat conduction effect. High-temperature hot oil is injected into the S-shaped heat exchange tube through the inlet pipe. After heat exchange by the liquid in the casing, it is discharged through the outlet pipe. By setting up a flange, when connecting the inlet pipe and the delivery pipe, and connecting the outlet pipe and the outlet pipe, the flange on one side of the delivery pipe and the outlet pipe cooperates with the inlet pipe and the delivery pipe. Automatic welding is used to eliminate the joint welding points between the manifold and the heat exchange tube, reducing the overall welding points and thus increasing the reliability of the heat exchanger. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a disassembly diagram of the limiting nut of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the casing of this utility model;

[0020] Figure 4 This is a schematic diagram of the S-type heat exchange tube and fixed support plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the flange structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the infusion tube of this utility model.

[0023] In the diagram: 1. Housing; 2. Side connecting seat; 3. Mounting frame; 4. Pipe support No. 1; 5. Inlet pipe; 6. S-shaped heat exchange tube; 7. Inlet pipe; 8. Flanged edge; 9. Mounting orifice plate; 10. Positioning bracket; 11. Fixing screw; 12. Limiting nut; 13. Inlet pipe No. 1; 14. Centralized tank No. 1; 15. Inlet pipe No. 2; 16. Fixing support plate; 17. Heat-conducting fins; 18. Drain pipe No. 1; 19. Drain pipe No. 2; 20. Centralized tank No. 2; 21. Outlet pipe; 22. Solenoid valve; 23. Pipe support No. 2; 24. Outlet pipe; 25. Guide plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 6 This utility model provides a technical solution: a heat exchanger piping with a direct insertion structure, comprising: a housing 1; side connecting seats 2 symmetrically fixed to the outside of the housing 1; mounting frames 3 symmetrically installed on one side of the side connecting seats 2, wherein one side of one mounting frame 3 is welded and fixed with multiple first-type pipe supports 4, and one side of the other mounting frame 3 is welded and fixed with multiple second-type pipe supports 23; a liquid delivery pipe 7 is installed inside the first-type pipe support 4, and a liquid outlet pipe 24 is installed inside the second-type pipe support 23; a fixed support plate 16 is equidistantly fixed to the inside of the housing 1, and multiple S-shaped heat exchange tubes 6 are equidistantly fixed inside the fixed support plate 16; an inlet pipe 5 is fixed to one end of the S-shaped heat exchange tube 6, and a liquid outlet pipe 21 is fixed to the other end of the S-shaped heat exchange tube 6; one side connecting seat 2 is fixed to the inlet pipe 5 and the liquid outlet pipe 21; and multiple flanges 8 that cooperate with the inlet pipe 5 and the liquid outlet pipe 21 are provided on one side of both the liquid delivery pipe 7 and the liquid outlet pipe 24.

[0026] It should be noted that in this embodiment, the heat exchange oil enters each inlet pipe 5 through the inlet pipe 7, then enters the S-shaped heat exchange tube 6 through each inlet pipe 5, and is injected into the first collection tank 14 through the second inlet pipe 15. The heat exchange liquid then enters the casing 1 through each first inlet pipe 13, injecting the liquid requiring heat exchange into the casing 1. The S-shaped heat exchange tube 6 is supported by each fixed support plate 16, and the heat exchange liquid in the casing 1 is guided by the guide plate 25. The heat conduction area is increased by the heat conduction fins 17. After heat exchange, the heat exchange oil entering the S-shaped heat exchange tube 6 through the inlet pipe 5 is discharged through the outlet pipe 21, flowing into the outlet pipe 24. After being guided by each guide plate 25, the heat exchange liquid flows through the second inlet pipe 25, and then... The first drain pipe 19 enters the second collection box 20 and is discharged through the first drain pipe 18 at the bottom of the second collection box 20. Each inlet pipe 5 is inserted into the flange 8 set on one side of the infusion pipe 7, and each outlet pipe 21 is inserted into the flange 8 set on one side of the outlet pipe 24. The welding is done automatically by a welding machine, eliminating the need for joint welding points and reducing the overall welding points, thereby increasing the reliability of the heat exchanger. The mounting frame 3 on one side of the first pipe support 4 is installed on one side of the side connecting seat 2. The mounting orifice plate 9 is installed on the inner side of the positioning frame 10 for limiting. The fixing screw 11 passes through the mounting orifice plate 9, and the limiting nut 12 is threaded on the outer side of the fixing screw 11. The mounting orifice plate 9, the mounting frame 3, and the first pipe support 4 are fixedly installed, which facilitates the installation and fixing between the infusion pipe 7 and the outlet pipe 24.

[0027] In one embodiment, such as Figures 1 to 3 As shown, multiple No. 1 liquid inlet pipes 13 are fixedly connected at equal intervals to the top of the housing 1. A No. 1 central box 14 is fixedly connected to the top of the No. 1 liquid inlet pipe 13, and a No. 2 liquid inlet pipe 15 is fixedly connected to the top of the No. 1 central box 14.

[0028] It should be noted that in this embodiment, the liquid to be heated is injected into the No. 1 central tank 14 through the No. 2 liquid inlet pipe 15, and enters the casing 1 through each No. 1 liquid inlet pipe 13 at the bottom of the No. 1 central tank 14 for heat exchange.

[0029] In one embodiment, such as Figures 1 to 3 As shown, multiple No. 2 drain pipes 19 are fixedly connected at equal intervals to the bottom of the casing 1. A No. 2 collection box 20 is fixedly connected to the bottom end of the No. 2 drain pipe 19. A No. 1 drain pipe 18 is fixedly connected to the bottom of the No. 2 collection box 20. A solenoid valve 22 is installed on the No. 2 drain pipe 19.

[0030] It should be noted that, in this embodiment, the liquid that has completed heat exchange inside the casing 1 enters the second collection box 20 through the second drain pipe 19, and then enters the first drain pipe 18 through the second collection box 20 for discharge.

[0031] In one embodiment, such as Figure 1 and Figure 2 As shown, mounting plates 9 are symmetrically fixed to the top and bottom of the mounting frame 3, and multiple positioning brackets 10 that mate with the mounting plates 9 are fixed to one side of one of the side connecting seats 2.

[0032] It should be noted that in this embodiment, the positioning frame 10 cooperates with the mounting plate 9 to position and install the mounting frame 3 on one side of the side connecting seat 2.

[0033] In one embodiment, such as Figure 1 and Figure 2 As shown, a plurality of fixing screws 11 that mate with the mounting plate 9 are fixedly connected to one side of the side connecting seat 2, and limit nuts 12 are installed on the outer side of the fixing screws 11.

[0034] It should be noted that in this embodiment, the fixing screw 11 cooperates with the mounting plate 9, the mounting plate 9 reaches the outside of the fixing screw 11, and the limiting nut 12 is threaded on the outside of the fixing screw 11, thereby limiting and fixing the mounting plate 9 and the mounting frame 3 on one side of the side connecting seat 2.

[0035] In one embodiment, such as Figure 3 and Figure 4 As shown, multiple heat-conducting fins 17 are fixedly connected at equal intervals on the outer side of the S-type heat exchange tube 6, and multiple liquid guide plates 25 are fixedly connected on the inner side of the casing 1. The liquid guide plates 25 are fixedly connected to the fixed support plate 16.

[0036] It should be noted that in this embodiment, the heat exchange liquid inside the housing 1 is guided by the liquid guide plate 25.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger piping system with a direct-insertion structure, characterized in that, include: Casing (1); Side connecting seat (2), the side connecting seat (2) is symmetrically arranged on the outside of the housing (1); The mounting frame (3) is symmetrically installed on one side of the side connecting seat (2). One side of the mounting frame (3) is provided with multiple first pipe supports (4), and the other side of the mounting frame (3) is provided with multiple second pipe supports (23). An infusion tube (7) is installed on the inside of the first pipe support (4), and an outlet tube (24) is installed on the inside of the second pipe support (23). Fixed support plate (16) is fixedly connected to the inner side of the casing (1) at equal intervals. Multiple S-shaped heat exchange tubes (6) are fixedly connected to the inside of the fixed support plate (16) at equal intervals. The inlet tube (5) is set at one end of the S-type heat exchange tube (6), and the other end of the S-type heat exchange tube (6) is fixedly connected to the outlet tube (21). One of the side connecting seats (2) is fixedly connected to the inlet tube (5) and the outlet tube (21). The infusion tube (7) and the outlet tube (24) are provided with multiple flanges (8) that cooperate with the inlet tube (5) and the outlet tube (21) on one side.

2. The heat exchanger piping with a direct-insertion structure according to claim 1, characterized in that: The top of the housing (1) is fixedly connected with a plurality of No. 1 liquid inlet pipes (13) at equal intervals. The top of the No. 1 liquid inlet pipe (13) is fixedly connected with a No. 1 central box (14), and the top of the No. 1 central box (14) is fixedly connected with a No. 2 liquid inlet pipe (15).

3. The heat exchanger piping with a direct-insertion structure according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected with multiple No. 2 drain pipes (19) at equal intervals. The bottom end of the No. 2 drain pipe (19) is fixedly connected with a No. 2 collection box (20). The bottom of the No. 2 collection box (20) is fixedly connected with a No. 1 drain pipe (18). A solenoid valve (22) is installed on the No. 2 drain pipe (19).

4. A heat exchanger piping with a direct-insertion structure according to claim 1, characterized in that: The top and bottom of the mounting frame (3) are symmetrically fixed with mounting holes (9), and one of the side connecting seats (2) is fixed with a plurality of positioning brackets (10) that cooperate with the mounting holes (9).

5. A heat exchanger piping with a direct-insertion structure according to claim 4, characterized in that: A plurality of fixing screws (11) that cooperate with the mounting plate (9) are fixedly connected to one side of the side connecting seat (2), and a limit nut (12) is installed on the outside of the fixing screw (11).

6. A heat exchanger piping with a direct-insertion structure according to claim 1, characterized in that: Multiple heat-conducting fins (17) are fixedly connected at equal intervals on the outer side of the S-shaped heat exchange tube (6), and multiple liquid guide plates (25) are fixedly connected on the inner side of the housing (1). The liquid guide plates (25) are fixedly connected to the fixed support plate (16).