Heat exchanger with center distance and connector size convenient to adjust
By adjusting the center distance and interface size of the heat exchanger using modular adjustment components, the installation difficulties caused by brand differences during heat exchanger replacement are solved, and the replacement cost is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-14
AI Technical Summary
When replacing existing heat exchangers, brand differences lead to inconsistencies in center distance and interface size, resulting in high replacement costs and making it impossible to modify the piping under certain operating conditions, thus creating replacement difficulties.
Design a modular adjustment assembly including a plug connector, a first pipe section, a reducing joint, and a second pipe section. This assembly is welded and fixed to the heat exchanger body to achieve adjustment of the center distance and interface size, avoiding the need to modify the pipes.
It enables adjustment of the heat exchanger center distance and interface size without changing the piping, reducing replacement costs and adapting to the installation needs of heat exchangers from different brands.
Smart Images
Figure CN224121775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger technology, and in particular to a heat exchanger that allows for convenient adjustment of the center distance and interface size. Background Technology
[0002] The lifespan of a heat exchanger varies from 8 to 15 years depending on the process stage. Once it reaches the end of its lifespan, it needs to be replaced with a completely new unit. However, after many years, the original heat exchanger manufacturer may have gone out of business, or the price may have become too high, leading to significant replacement costs. In such cases, replacing the old heat exchanger requires finding a model with similar dimensions. A key characteristic of heat exchangers is that the center distance of the orifices varies between brands, meaning the interface sizes of the new and old heat exchangers may not be identical. To address this, the common practice is to modify the piping or add pipe diameter reduction measures to replace the old with the new. However, modifying the piping significantly increases costs for the company, and some operating conditions do not allow for such modifications, creating a major challenge in heat exchanger replacement. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a heat exchanger with convenient adjustment of center distance and interface size. According to the actual pipeline conditions on site, by setting up modular adjustment components, the center distance and interface size of the heat exchanger can be adjusted, thereby achieving the purpose of replacing a brand new heat exchanger without changing the pipeline.
[0004] This utility model is achieved through the following solution:
[0005] A heat exchanger with easily adjustable center distance and interface size includes a heat exchanger body and an adjustment assembly. The adjustment assembly includes a sealing connector, a first pipe section, a reducing joint, a second pipe section, and a loose flange. The sealing connector is fixedly sealed at a corner hole of the heat exchanger body. The outer wall of the sealing connector has a connection hole, and the cross-sectional area of the connection between the sealing connector and the heat exchanger is larger than the corner hole of the heat exchanger body. The first pipe section is fixedly installed at the connection hole. The reducing joint is fixedly installed at the end of the first pipe section. The second pipe section is fixedly installed at the end of the reducing joint. The loose flange is installed on the second pipe section.
[0006] Furthermore, the sealing connector has a semi-cylindrical structure.
[0007] Furthermore, the slip-on flange includes a flange and a flange sleeve, wherein the flange is installed on the flange sleeve and the flange sleeve is fixedly connected to the second pipe section.
[0008] Preferably, the sealing connector is welded and fixed to the heat exchanger body.
[0009] Preferably, the first pipe section is welded and fixed to the sealing connector.
[0010] Preferably, the two ends of the reducing joint are welded and fixed to the first pipe section and the second pipe section, respectively.
[0011] Preferably, the flange sleeve is welded and fixed to the second pipe section.
[0012] Preferably, the heat exchanger is a plate heat exchanger.
[0013] Beneficial effects of the utility model:
[0014] This utility model provides a heat exchanger with convenient adjustment of center distance and interface size. According to the actual pipeline conditions on site, a modular adjustment component is set at the corner hole of the heat exchanger. The center distance can be adjusted by moving the installation position of the sealing connector in the adjustment component. The interface size can be adjusted by adjusting the diameter of the first pipe section, the reducing joint and the second pipe section. The distance between the corner hole of the heat exchanger and the pipe joint can be adjusted by the length of the first pipe section and the second pipe section, thereby achieving the purpose of replacing a brand new heat exchanger without changing the pipeline. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the assembly structure of this utility model.
[0016] Figure 2 This is an exploded structural diagram of the adjustment component of this utility model.
[0017] In the diagram: 1. Heat exchanger body; 2. Adjustment assembly; 21. Sealing connector; 22. First pipe section; 23. Reducing joint; 24. Second pipe section; 25. Flange; 26. Flange sleeve. Detailed Implementation
[0018] A heat exchanger with easily adjustable center distance and interface size is shown in the following assembly structure diagram. Figure 1 As shown, it includes a heat exchanger body 1 and an adjustment assembly 2.
[0019] The regulating components can be prefabricated in a modular form and installed with the new heat exchanger body according to the on-site piping conditions, or the new heat exchanger body can be transported to the site and installed on-site according to the piping conditions.
[0020] The exploded structure diagram of the regulating component is shown below. Figure 2As shown, the system includes a sealing connector 21, a first pipe section 22, a reducing joint 23, a second pipe section 24, and a slip-on flange. The sealing connector is fixedly sealed at the corner hole of the heat exchanger body. The outer wall of the sealing connector has a connection hole, and the cross-sectional area of the connection between the sealing connector and the heat exchanger is larger than that of the corner hole in the heat exchanger body. This allows for adjustment of the installation position of the sealing connector according to the center distance of the pipelines on site, thus achieving center distance adjustment. Welding is preferably used to fix the sealing connector to the heat exchanger body, facilitating connection and preventing leakage.
[0021] The first pipe section is fixedly installed at the connection hole, the reducing joint is fixedly installed at the end of the first pipe section, the second pipe section is fixedly installed at the end of the reducing joint, and the loose flange is installed on the second pipe section.
[0022] By incorporating a first pipe section, a reducing joint, and a second pipe section, the problem of size mismatch between the heat exchanger and the on-site piping interface can be resolved. Furthermore, by varying the lengths of the first and second pipe sections, the distance between the on-site piping and the heat exchanger can be adjusted. Welding is the preferred method for fixing the first pipe section to the sealing connector, and welding is also a preferred method for fixing both ends of the reducing joint to the first and second pipe sections, ensuring reliable connections and preventing leaks.
[0023] Furthermore, the sealing connector has a semi-cylindrical structure, with the flat part of the semi-cylindrical structure fixedly connected to the heat exchanger body. The position of the sealing connector can be adjusted, and during the adjustment process, the sealing connector always surrounds the corner hole of the heat exchanger, so as to achieve the flow of the medium and prevent the medium leakage.
[0024] Furthermore, the loose flange includes a flange 25 and a flange sleeve 26. The flange is installed on the flange sleeve and the flange sleeve is fixedly connected to the second pipe section, which facilitates the connection between the adjustment component and the field pipeline. The flange sleeve and the second pipe section can preferably be fixed by welding.
[0025] The heat exchanger is preferably a plate heat exchanger, which has a better match with the regulating components.
[0026] In summary, the present invention provides a heat exchanger with adjustable center distance and interface size, which can achieve the purpose of replacing a completely new heat exchanger without changing the pipeline.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 heat exchanger with easily adjustable center distance and interface size, characterized in that: The device includes a heat exchanger body and an adjustment assembly. The adjustment assembly includes a sealing connector, a first pipe section, a reducing joint, a second pipe section, and a loose flange. The sealing connector is fixedly sealed at a corner hole in the heat exchanger body. The outer wall of the sealing connector has a connection hole, and the cross-sectional area at the connection between the sealing connector and the heat exchanger is larger than the corner hole in the heat exchanger body. The first pipe section is fixedly installed at the connection hole. The reducing joint is fixedly installed at the end of the first pipe section. The second pipe section is fixedly installed at the end of the reducing joint. The loose flange is installed on the second pipe section.
2. A heat exchanger with easily adjustable center distance and interface size according to claim 1, characterized in that: The sealing connector has a semi-cylindrical structure.
3. A heat exchanger with easily adjustable center distance and interface size according to claim 1, characterized in that: The loose flange includes a flange and a flange sleeve. The flange is installed on the flange sleeve and the flange sleeve is fixedly connected to the second pipe section.
4. A heat exchanger with easily adjustable center distance and interface size according to claim 1, characterized in that: The sealing connector is welded and fixed to the heat exchanger body.
5. A heat exchanger with easily adjustable center distance and interface size according to claim 1, characterized in that: The first pipe section is welded and fixed to the sealing connector.
6. A heat exchanger with easily adjustable center distance and interface size according to claim 1, characterized in that: The reducing joint is welded and fixed at both ends to the first pipe section and the second pipe section, respectively.
7. A heat exchanger with easily adjustable center distance and interface size according to claim 3, characterized in that: The flange sleeve is welded and fixed to the second pipe section.
8. A heat exchanger with easily adjustable center distance and interface size according to claim 1, characterized in that: The heat exchanger is a plate heat exchanger.