Special-shaped filler strip
By using the L-shaped design and inclined groove structure of the special-shaped gasket, the problem of gasket loosening in the wound heat exchanger is solved, resulting in better tube fixation and equipment stability, enhanced flow rate and velocity, and extended equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-03
AI Technical Summary
In existing spiral wound heat exchangers, the common gaskets have a loosening problem, which leads to increased tube vibration and noise, affects flow rate and velocity, and reduces equipment life.
The device employs a uniquely shaped gasket design, including an L-shaped strip and an inclined groove structure, to ensure that the pipes are securely fixed, reduce loosening, and enhance equipment stability.
It increases the flow rate and velocity of the medium or gas, reduces equipment vibration and noise, and extends the service life of the equipment.
Smart Images
Figure CN224080824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger equipment technology, specifically to a special-shaped gasket. Background Technology
[0002] A heat exchanger is an energy-saving device that enables heat transfer between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, bringing the fluid temperature to the specified parameters of the process to meet the requirements of the process conditions. It is also one of the main devices for improving energy utilization efficiency.
[0003] Gaskets are used to secure tubes in spiral wound heat exchangers. However, ordinary gaskets currently on the market still exhibit some looseness in securing the tubes. This increases vibration and noise in the tubes and the overall equipment, affecting the flow rate and velocity of liquids or gases within the heat exchanger, thus reducing the heat exchange effect and significantly shortening the equipment's lifespan. Based on this, we propose a custom-shaped gasket. Utility Model Content
[0004] The purpose of this invention is to overcome the aforementioned problems in the prior art and provide a special-shaped gasket for use in a spiral wound heat exchanger. This gasket can increase the flow rate and velocity of the medium or gas, enhance the heat exchange effect of the equipment, and at the same time better fix the tubes, reduce the vibration and noise of the tubes and the overall equipment, improve stability, ensure the flow rate and velocity of the liquid or gas in the heat exchanger, and extend the service life of the equipment.
[0005] To solve the above-mentioned technical problems, this utility model provides a special-shaped pad strip, including a strip body, which is mainly composed of a bottom strip and side strips. The side strips are connected to the top side of the bottom strip, and the top of the side strips is provided with a plurality of grooves at equal intervals along the length direction, and the grooves are inclined.
[0006] Preferably, the groove can be rotated to the left or right at an angle of 8° to 20° depending on the equipment and working effect.
[0007] Based on the above technical features, the groove is tilted to better fix the pipe and reduce loosening.
[0008] Preferably, the groove is arc-shaped.
[0009] Based on the above technical features, the tube can fit more closely to the outer surface of the tube when it is in the groove, thus securing it more tightly.
[0010] Preferably, the strip has a width of 12-32 mm, a thickness of 2-6 mm, and a height of 10-11 mm.
[0011] Based on the above technical features, the width, thickness, spacing, and angle of the gasket are strictly adjusted. Within the above value range, the tube can be better fixed, and the heat exchange effect is better.
[0012] Preferably, the cross-section of the strip is L-shaped.
[0013] Based on the above technical features, the L-shaped irregular gasket makes it easier to fix the pipe and improve stability.
[0014] Preferably, a fixing groove is provided in the middle of the bottom of the bottom strip.
[0015] Based on the above technical features, the pad strip is welded and fixed by means of a fixing groove and a fixing frame.
[0016] The bottom strip and side strips are an integral structure.
[0017] Based on the above technical features, it is convenient to obtain and use the pad strip.
[0018] Preferably, a shallow groove is formed in the middle of the top surface of the bottom strip, and two sloping surfaces are provided on the top surface of the bottom strip, the two sloping surfaces being symmetrical about the center of the shallow groove.
[0019] Based on the above technical features, irregularly shaped gaskets can be matched and used in heat exchangers.
[0020] In summary, this utility model has at least one of the following beneficial effects:
[0021] This product features an L-shaped design for the gaskets and evenly spaced grooves on the side strips to ensure consistent spacing between each layer of tubes. The grooves are also angled. When used in spiral wound heat exchangers, this design increases the flow rate and velocity of the medium or gas, enhancing the heat exchange effect. Furthermore, compared to ordinary gaskets on the market, it provides better tube fixation, reducing vibration and noise in the tubes and the overall equipment, improving stability, ensuring the flow rate and velocity of liquids or gases in the heat exchanger, and extending the equipment's service life. Attached Figure Description
[0022] Figure 1 This is a front view of the irregularly shaped pad strip of this utility model;
[0023] Figure 2 For the present utility model Figure 1 A top-down partial view;
[0024] Figure 3 For the purposes of this utility model Figure 2 Sectional view of the middle BB line;
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1-Strip, 2-Bottom strip, 201-Shallow groove, 202-Sloping surface, 3-Side strip, 4-Groove, 5-Fixing groove. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.
[0028] One embodiment of this utility model is shown below: Figure 1 , Figure 2 and Figure 3 A special-shaped gasket includes a strip body 1, which has a width of 12-32 mm, a thickness of 2-6 mm, and a height of 10-11 mm. The width, thickness, spacing, and angle of the gasket are strictly adjusted within the above-mentioned range to better fix the pipe and improve the heat exchange effect. The cross-section of the strip body 1 is "L" shaped. The L-shaped special-shaped gasket facilitates better pipe fixation and improves stability.
[0029] See Figure 2 The strip 1 is mainly composed of a bottom strip 2 and a side strip 3. The side strip 3 is connected to the top side of the bottom strip 2. The top of the side strip 3 has several grooves 4 evenly spaced along its length. The grooves 4 are inclined. The grooves 4 are arc-shaped, which makes it easier for the pipe to fit more closely to the outer surface of the pipe when it is in the grooves 4, so as to fix it more tightly. The grooves 4 can be rotated to the left or right at an angle of 8° to 20° (according to the equipment design requirements) according to different equipment and working effects, so as to ensure that the grooves 4 are in a certain inclined state, which facilitates better fixing of the pipe, reduces pipe loosening, improves fixing performance, reduces vibration and noise of the pipe and the overall equipment, and extends the service life of the equipment.
[0030] See Figure 3 The bottom of the bottom strip 2 has a fixing groove 5 in the middle, which is used to weld and fix the pad strip with the fixing frame. The bottom strip 2 and the side strip 3 are integrated, which facilitates the acquisition and use of the pad strip. The top surface of the bottom strip 2 has a shallow groove 201 in the middle, and the top surface of the bottom strip 2 has two sloping surfaces 202. The two sloping surfaces 202 are symmetrical about the shallow groove 201. The shallow groove 201 allows the irregular pad strip to be matched with the matching parts in the heat exchanger.
[0031] Working principle:
[0032] By adopting an L-shaped irregular design for the gasket and opening grooves 4 at equal intervals on the side strip 3, the spacing of each layer of tubes is ensured to be consistent, and the grooves 4 are inclined. This product, when used in a spiral wound heat exchanger, can increase the flow rate and velocity of the medium or gas, enhance the heat exchange effect of the equipment, and fix the tubes better than ordinary gaskets on the market. It also has a better heat exchange effect, reduces the vibration and noise of the tubes and the overall equipment, improves stability, ensures the flow rate and velocity of liquid or gas in the heat exchanger, and extends the service life of the equipment.
[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A profiled mat strip comprising a strip body (1), characterised in that: The strip body (1) is mainly composed of a bottom strip (2) and a side strip (3) connected at one side of the top of the bottom strip (2), the top of the side strip (3) is provided with a plurality of grooves (4) at equal intervals along the length direction, and the grooves (4) are inclined.
2. A profiled mat strip according to claim 1, characterised in that: The grooves (4) can be rotated leftward or rightward by an angle of 8-20° according to different equipment and working effects.
3. A profiled mat strip according to claim 1, characterized in that: The grooves (4) are in the shape of a circular arc.
4. A profiled mat strip according to claim 1, characterized in that: The width of the strip body (1) is 12-32 mm, the thickness is 2-6 mm, and the height is 10-11 mm.
5. A profiled mat strip according to claim 1, characterized in that: The cross section of the strip body (1) is in the shape of an "L".
6. A profiled mat strip according to claim 1, characterized in that: A fixing groove (5) is formed in the middle of the bottom of the bottom strip (2).
7. A profiled mat strip according to claim 1, wherein: The bottom strip (2) and the side strip (3) are in an integrated structure.
8. A profiled mat strip according to claim 1, characterized in that: A shallow groove (201) is formed in the middle of the top surface of the bottom strip (2), and the top surface of the bottom strip (2) is provided with two inclined surfaces (202) which are symmetric about the center of the shallow groove (201).