Corrosion-resistant plate heat exchanger for seawater heat exchange

Abstract

The utility model provides a kind of corrosion-resistant plate heat exchanger for seawater heat exchange, it is related to plate heat exchanger technical field, and it includes: pedestal;The left end surface of the pedestal is symmetrically welded with two first limit rods, and heat exchange fin is limited between the two first limit rods, and the fixed plate is slid on the left side position of heat exchange fin on the two first limit rods;Limiting assembly is installed on pedestal, and limiting assembly is composed of second limit rod, connecting block and second threaded rod, two second limit rods are symmetrically slid on pedestal, and the right side one end of two second limit rods is welded on connecting block, and connecting block is rectangular block structure.This application is in structural stability and installation maintenance, by the cooperation of first limit rod, fixed plate and fixed assembly, heat exchange fin is compressed by first threaded rod extrusion fixed plate, and it is convenient to install and is convenient for routine maintenance, reduce the corrosion caused by not timely maintenance;First limit rod left side arc design makes fixed plate joint smoothly, improve installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger technology, and in particular to a corrosion-resistant plate heat exchanger for seawater heat exchange. Background Technology

[0002] Plate heat exchangers are a type of high-efficiency heat exchange equipment, mainly composed of a series of metal heat transfer plates with a certain corrugated shape, sealing gaskets, pressure plates, and frames. Their core working principle is to introduce cold and hot fluids into the flow channels on both sides of the plates, and utilize the high thermal conductivity of the metal plates to enable rapid heat transfer between the two fluids, thereby completing processes such as heating, cooling, condensation, or evaporation.

[0003] The existing device requires screws for fixing during assembly, which has low fixing efficiency and makes it difficult to ensure that the tightness of multiple screws is the same. This leads to air leakage and corrosion in the later stage. The existing heat exchange plate has low corrosion resistance and is easily corroded by seawater. Utility Model Content

[0004] This utility model relates to a corrosion-resistant plate heat exchanger for seawater heat exchange, which solves the problems of existing devices that require screws for fixing during assembly, resulting in low fixing efficiency and difficulty in ensuring that the tightness of multiple screws is the same, which leads to air leakage and corrosion in the later stage; and the low corrosion resistance of existing heat exchange plates, which are easily corroded by seawater.

[0005] This utility model provides a corrosion-resistant plate heat exchanger for seawater heat exchange, specifically including: a base; two first limiting rods are symmetrically welded to the left end of the base, and a heat exchange plate is limited between the two first limiting rods. A fixing plate is slidably mounted on the two first limiting rods at the left side position of the heat exchange plate; a limiting assembly is installed on the base, the limiting assembly consists of a second limiting rod, a connecting block, and a second threaded rod. Two second limiting rods are symmetrically slidable on the base, and the right side end of each of the two second limiting rods is welded to the connecting block. The connecting block has a rectangular block structure, and the left side end of each of the two second limiting rods is in contact with the fixing plate. A second threaded rod is threadedly connected to the connecting block, and the left side end of the second threaded rod rotates on the base.

[0006] Furthermore, each of the first limiting rods has a slot, with a first locking seat engaged in the lower slot and a second locking seat engaged in the upper slot, the second locking seat sliding on the first locking seat.

[0007] Furthermore, a third locking seat is locked onto the first and second locking seats, and a first threaded rod is threaded onto the third locking seat. A contact block is rotatably attached to the right end of the first threaded rod, and the right end face of the contact block contacts the left end face of the fixing plate.

[0008] Furthermore, the first locking seat, the second locking seat, the third locking seat, the first threaded rod, and the contact block together form a fixing assembly; the left end of both first limiting rods is polished, and after polishing, the left end of the first limiting rod is an arc-shaped structure.

[0009] Furthermore, protective rods are welded at equal intervals on the left end face of the base. The protective rods all pass through the fixing plate and are located on the outside of the heat exchange plate. The protective rods are protective components for the heat exchange plate.

[0010] Furthermore, the heat exchange plate is made of titanium alloy, and the surface of the heat exchange plate has undergone anodizing treatment.

[0011] This utility model provides a corrosion-resistant plate heat exchanger for seawater heat exchange, which has the following beneficial effects: In terms of structural stability and installation and maintenance, this application utilizes the cooperation of the first limiting rod, the fixing plate and the fixing components to press the heat exchange fins together by using the first threaded rod to squeeze the fixing plate. This makes installation convenient and easy for daily maintenance, and the force is evenly distributed, preventing leakage and corrosion. The arc-shaped design on the left side of the first limiting rod makes the fixing plate snap into place smoothly, improving installation efficiency.

[0012] Regarding protective performance, the protective rod on the base is located on the outside of the heat exchange fins, which reduces the probability of damage to the heat exchange fins. The second limiting rod in the limiting assembly can precisely limit the fixing plate, avoiding excessive squeezing force that could damage the heat exchange fins or insufficient squeezing force that could lead to leakage.

[0013] In terms of corrosion resistance, the titanium alloy heat exchange fins form a dense oxide film in seawater, which has strong resistance to pitting and crevice corrosion and low sensitivity to marine organism adhesion. The surface anodizing treatment thickens the oxide film, further improving the resistance to chloride ion penetration and wear resistance. It is especially suitable for scenarios with high seawater sand content, and greatly enhances the corrosion resistance and service life of the heat exchanger in the seawater environment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram: Figure 1 A perspective view of the corrosion-resistant plate heat exchanger of this utility model for seawater heat exchange is shown. Figure 2 The front view of the corrosion-resistant plate heat exchanger for seawater heat exchange according to this invention is shown. Figure 3 A left view of the present invention is shown; Figure 4 This invention presents a disassembled perspective view of the corrosion-resistant plate heat exchanger for seawater heat exchange according to the present invention. Figure 5 A perspective view of the first limiting rod and fixing assembly of this utility model is shown; Figure 6 A perspective view of the disassembled fixing component of this utility model is shown.

[0017] List of reference numerals 1. Base; 101. First limiting rod; 102. Heat exchange fin; 103. Fixing plate; 104. Protective rod; 105. Slot; 2. Fixing assembly; 201. First snap-fit ​​seat; 202. Second snap-fit ​​seat; 203. Third snap-fit ​​seat; 204. First threaded rod; 205. Contact block; 3. Limiting assembly; 301. Second limiting rod; 302. Connecting block; 303. Second threaded rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a corrosion-resistant plate heat exchanger for seawater heat exchange, comprising: a base 1; two first limiting rods 101 are symmetrically welded to the left end face of the base 1, and a heat exchange plate 102 is limited between the two first limiting rods 101; a fixing plate 103 is slidably mounted on the two first limiting rods 101 at the left side position of the heat exchange plate 102; a limiting assembly 3 is installed on the base 1, the limiting assembly 3 is composed of a second limiting rod 301, a connecting block 302, and a second threaded rod 303; two second limiting rods 301 are symmetrically slidably mounted on the base 1, and the two second limiting rods 102 are fixed plates 103. The right end of each rod 301 is welded to the connecting block 302. The connecting block 302 is a rectangular block structure. The left end of each of the two second limiting rods 301 is in contact with the fixing plate 103. The connecting block 302 is threaded with a second threaded rod 303. The left end of the second threaded rod 303 rotates on the base 1. During use, the second limiting rod 301 can limit the fixing plate 103, avoiding excessive pressure on the fixing plate 103 that could cause damage to the heat exchange fins 102, and also preventing insufficient pressure on the fixing plate 103 that could cause leakage.

[0020] Each of the first limiting rods 101 has a slot 105. A first locking seat 201 is locked in the lower slot 105, and a second locking seat 202 is locked in the upper slot 105. The second locking seat 202 slides on the first locking seat 201.

[0021] The first snap-fit ​​seat 201 and the second snap-fit ​​seat 202 are snapped with a third snap-fit ​​seat 203. The third snap-fit ​​seat 203 is threaded with a first threaded rod 204. The right end of the first threaded rod 204 has a rotating contact block 205. The right end face of the contact block 205 contacts the left end face of the fixing plate 103. When pressing the heat exchange plate 102, the second snap-fit ​​seat 202 is first slid onto the first snap-fit ​​seat 201. Then, the second snap-fit ​​seat 202 and the first snap-fit ​​seat 201 are snapped into the two slots 105. The third snap-fit ​​seat 203 is snapped onto the first snap-fit ​​seat 201 and the second snap-fit ​​seat 202. Then, the first threaded rod 204 is rotated with a wrench. The pressing of the fixing plate 103 by the first threaded rod 204 can complete the pressing of the heat exchange plate 102. The installation is convenient and the force is even, and there will be no leakage or corrosion.

[0022] The first locking seat 201, the second locking seat 202, the third locking seat 203, the first threaded rod 204, and the contact block 205 together form the fixing component 2. The left end of both first limiting rods 101 is polished, and after polishing, the left end of the first limiting rods 101 is an arc-shaped structure. When the fixing plate 103 is locked onto the two first limiting rods 101, the locking is smooth under the guidance of the arc-shaped part, which improves the installation efficiency.

[0023] Among them, the heat exchange plate 102 is made of titanium alloy, and the surface of the heat exchange plate 102 is anodized. Titanium forms a dense oxide film in seawater, which can effectively block chloride ion penetration, has extremely strong resistance to pitting corrosion and crevice corrosion, and has low sensitivity to marine organism attachment. By anodizing the titanium alloy plate, the surface oxide film is artificially thickened from the naturally formed 5-10nm to several micrometers, which improves its resistance to chloride ion penetration and wear resistance, making it especially suitable for scenarios with high seawater sand content.

[0024] Example 2, based on Example 1, such as Figures 1 to 6 As shown, protective rods 104 are welded at equal intervals on the left end face of the base 1. All protective rods 104 pass through the fixing plate 103. The protective rods 104 are located on the outside of the heat exchange plate 102. The protective rods 104 are protective parts for the heat exchange plate 102. By protecting the heat exchange plate 102 with the protective rods 104, the probability of damage to the heat exchange plate 102 can be reduced.

[0025] The working principle of this embodiment is as follows: When using this corrosion-resistant plate heat exchanger for seawater heat exchange, firstly, the heat exchange plate 102 is positioned between the two first limiting rods 101 at the left end of the base 1. Then, the fixing plate 103 is slidably installed on the left side of the first limiting rods 101. The arc-shaped grinding structure at the left end of the first limiting rods 101 makes the installation smoother. Next, the fixing assembly 2 is processed. The second snap-fit ​​seat 202 is slidably installed on the first snap-fit ​​seat 201. Then, both are snapped into the slots 105 of the two first limiting rods 101 respectively. Subsequently, the third snap-fit ​​seat 203 is snapped into the first snap-fit ​​seat 201 and the second snap-fit ​​seat 202. The third snap-fit ​​seat 203 is rotated with a wrench. The first threaded rod 204 on the base 203 causes the contact block 205 on its right side to press against the fixing plate 103, thus completing the clamping of the heat exchange plate 102. At the same time, the limiting component 3 on the base 1 limits the fixing plate 103 through the second limiting rod 301. The limiting force can be adjusted by rotating the second threaded rod 303 on the connecting block 302 to prevent the heat exchange plate 102 from being damaged or leaking due to excessive or insufficient compression. The protective rod 104 on the base 1 passes through the fixing plate 103 to protect the heat exchange plate 102. It can be disassembled by reversing the operation during daily maintenance, which is convenient for timely maintenance of the titanium alloy heat exchange plate 102, which has been anodized, and ensures its corrosion resistance.

Claims

1. A corrosion-resistant plate heat exchanger for heat exchange of seawater, characterized in that, include: Base (1); two first limiting rods (101) are symmetrically welded to the left end of the base (1), and a heat exchange plate (102) is limited between the two first limiting rods (101). A fixing plate (103) slides on the two first limiting rods (101) at the left side of the heat exchange plate (102); a limiting assembly (3) is installed on the base (1), and the limiting assembly (3) consists of a second limiting rod (301), a connecting block (302), and a second threaded rod (303). The base (1) has two second limiting rods (301) that slide symmetrically. The right side of each of the two second limiting rods (301) is welded to the connecting block (302). The connecting block (302) is a rectangular block structure. The left side of each of the two second limiting rods (301) is in contact with the fixing plate (103). The connecting block (302) is threaded with a second threaded rod (303). The left side of the second threaded rod (303) rotates on the base (1).

2. The corrosion resistant plate heat exchanger for heat exchange of seawater according to claim 1, characterized in that, Each of the first limiting rods (101) has a slot (105), with a first locking seat (201) locked in the lower slot (105) and a second locking seat (202) locked in the upper slot (105). The second locking seat (202) slides on the first locking seat (201).

3. The corrosion resistant plate heat exchanger for heat exchange of seawater according to claim 2, characterized in that, A third snap-fit ​​seat (203) is snapped onto the first snap-fit ​​seat (201) and the second snap-fit ​​seat (202). A first threaded rod (204) is threaded onto the third snap-fit ​​seat (203). A contact block (205) is rotatably attached to the right end of the first threaded rod (204). The right end face of the contact block (205) contacts the left end face of the fixing plate (103).

4. The corrosion resistant plate heat exchanger for heat exchange of seawater according to claim 3, characterized in that, The first locking seat (201), the second locking seat (202), the third locking seat (203), the first threaded rod (204) and the contact block (205) together form the fixing assembly (2); the left end of the two first limiting rods (101) is polished, and the left end of the first limiting rod (101) is arc-shaped after polishing.

5. A corrosion resistant plate heat exchanger for heat exchange with sea water according to claim 4, characterized in that The base (1) has protective rods (104) welded at equal intervals on the left end face. The protective rods (104) all pass through the fixing plate (103). The protective rods (104) are located on the outside of the heat exchange plate (102). The protective rods (104) are protective parts of the heat exchange plate (102).

6. A corrosion resistant plate heat exchanger for heat exchange with sea water according to claim 5, characterized in that The heat exchange plate (102) is made of titanium alloy and the surface of the heat exchange plate (102) is anodized.

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