Corrosion-resistant titanium heat exchanger

Abstract

The utility model provides a corrosion-resistant titanium heat exchanger, and belongs to the technical field of heat exchangers. Comprising a heat exchanger shell and a liquid inlet pipe fixedly mounted in the center of the upper surface of the heat exchanger shell, a flow dividing cavity communicating with the liquid inlet pipe is formed in the top of the inner wall of the heat exchanger shell, and a heat exchange cavity is formed in the heat exchanger shell and located below the flow dividing cavity; a concentration cavity is formed in the position, located below the heat exchange cavity, in the heat exchanger shell. The corrosion resistance of the heat exchange tube is improved through the anti-corrosion titanium layer, titanium has good tolerance to most inorganic acids such as hydrochloric acid, sulfuric acid and nitric acid, the titanium cannot be corroded by dilute hydrochloric acid, dilute sulfuric acid, nitric acid or dilute alkali solution at normal temperature, and the titanium also has certain tolerance to organic acid, so that the corrosion resistance of the heat exchange tube is improved. The catalyst can be used in organic media such as gasoline, toluene, phenol, formaldehyde, trichloroethane, acetic acid, citric acid, monochloroacetic acid and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a corrosion-resistant titanium heat exchanger. Background Art

[0002] The heat exchanger is the most typical partition-type heat exchanger, which is widely used in industry. Heat exchangers are distributed in various models and specifications, and tube bundle heat exchanger is one of them. The tube heat exchanger is mainly composed of shell, tube bundle, tube sheet and head.

[0003] After consulting the prior art, it was found that a Chinese utility model patent, application number "CN202222952825.6" is "a corrosion-resistant titanium tube heat exchanger". The patent discloses that it includes a main body structure, a channel structure, a heat exchange structure and an auxiliary structure, wherein the channel structure is located at the outer end of the main body structure, the heat exchange structure is located at the inner end of the main body structure, and the auxiliary structure is located at the outer end of the heat exchange structure; wherein, the heat exchange structure includes a heat exchange tube sheet, a plurality of parallel titanium tube bundles and a plurality of baffles, which solves the problem that it cannot be widely used for different fluids, especially fluids containing chemical gases, which are prone to corrosive damage to the heat exchange tubes during heat exchange, thereby reducing the safety of use and the service life of the heat exchange tubes. However, when corrosive liquids or gases pass through, they will cause corrosive damage to the inner wall of the heat exchanger. In order to improve the heat exchange efficiency, the heat exchange tubes will make their tube walls as thin as possible, so the heat exchange tubes are prone to deformation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a corrosion-resistant titanium heat exchanger to solve the problem that when the existing corrosive liquid or gas passes through, the inner wall of the heat exchanger will be corrosively damaged. In order to improve the heat exchange efficiency, the wall of the heat exchange tube will be made as thin as possible, so the heat exchange tube is prone to deformation.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A corrosion-resistant titanium heat exchanger comprises: a heat exchanger shell and a liquid inlet pipe fixedly installed at the center of the upper surface of the heat exchanger shell, a diverter cavity connected to the liquid inlet pipe is arranged on the top of the inner wall of the heat exchanger shell, a heat exchange cavity is arranged inside the heat exchanger shell and below the diverter cavity, a central cavity is arranged inside the heat exchanger shell and below the heat exchange cavity, heat exchange tubes distributed at equal intervals are fixedly connected between the diverter cavity and the central cavity, and a discharge pipe fixedly connected to the central cavity is fixedly connected to the lower surface of the heat exchanger shell.

[0007] Preferably, the heat exchange tube comprises a wear-resistant surface layer, the inner wall of the wear-resistant surface layer is fixedly connected with a heat-conducting layer, and the inner wall of the heat-conducting layer is fixedly connected with an anti-corrosion titanium layer.

[0008] Preferably, the interior of the heat-conducting layer is fixedly connected with reinforcing ribs distributed in a circular array, and the reinforcing ribs are made of heat-conducting material.

[0009] Preferably, a connecting wire is fixedly connected to the surface of the reinforcing rib, and the inside of the heat conducting layer is fixedly connected to the connecting wire.

[0010] Preferably, the heat exchanger shell comprises a main body, an inner wall of the main body is fixedly connected with a corrosion-resistant layer, and a surface of the main body is coated with a wear-resistant paint layer.

[0011] Preferably, a water inlet pipeline and a drainage pipeline are fixedly connected to the top and bottom of the front side of the heat exchanger housing, and the water inlet pipeline and the drainage pipeline both include connecting pipes.

[0012] Preferably, the back side of the connecting tube is fixedly connected with diverter tubes distributed at equal intervals, and the positions of the diverter tubes are staggered with the heat exchange tubes.

[0013] Preferably, the front surface of the diverter pipe is fixedly connected to the main pipeline, the lower surface of the heat exchanger shell is fixedly connected to the support legs, and the lower surface of the support legs is fixedly connected to the base.

[0014] Preferably, a driving motor is fixedly connected to the back side of the heat exchanger shell, and an output end of the driving motor passes through the heat exchanger shell and is fixedly connected to an impeller.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] In the above scheme, the anti-corrosion titanium layer improves the corrosion resistance of the heat exchange tube. Titanium has good tolerance to most inorganic acids such as hydrochloric acid, sulfuric acid and nitric acid. At room temperature, titanium will not be corroded by dilute hydrochloric acid, dilute sulfuric acid, nitric acid or dilute alkali solution. Titanium also has a certain tolerance to organic acids. For example, in organic media such as gasoline, toluene, phenol, formaldehyde, trichloroethane, acetic acid, citric acid, monochloroacetic acid, etc., titanium has good corrosion resistance. The inside of the heat conductive layer is fixedly connected to the connecting wire, and the connecting wire and the reinforcing ribs cooperate to improve the strength of the heat exchange tube, making the heat exchange tube less likely to deform. Multiple heat exchange tubes increase the contact area with corrosive liquids, and the driving motor drives the impeller to rotate, thereby driving the heat exchange liquid inside the heat exchange cavity to flow, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a corrosion-resistant titanium heat exchanger;

[0018] Figure 2 A schematic diagram of the internal three-dimensional structure of a heat exchanger shell of a corrosion-resistant titanium heat exchanger;

[0019] Figure 3A corrosion-resistant titanium heat exchanger Figure 2 A magnified view of the structure at center;

[0020] Figure 4 It is a three-dimensional cross-sectional view of a heat exchange tube of a corrosion-resistant titanium heat exchanger;

[0021] Figure 5 The figure is a three-dimensional rear view of the heat exchanger shell of a corrosion-resistant titanium heat exchanger.

[0022] Reference numerals

[0023] 1. Heat exchanger shell; 2. Liquid inlet pipe; 3. Diverter cavity; 4. Heat exchange cavity; 5. Concentrator cavity; 6. Heat exchange tube; 7. Wear-resistant surface layer; 8. Heat conductive layer; 9. Reinforcement ribs; 10. Connecting wire; 11. Anti-corrosion titanium layer; 12. Corrosion-resistant layer; 13. Main body; 14. Wear-resistant paint layer; 15. Connecting pipe; 16. Diverter pipe; 17. Drain pipe; 18. Support leg; 19. Base; 20. Drive motor; 21. Impeller; 22. Main pipeline.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0025] The following is a detailed description of a corrosion-resistant titanium heat exchanger provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0026] like Figure 1-Figure 5As shown, an embodiment of the utility model provides a corrosion-resistant titanium heat exchanger, comprising: a heat exchanger shell 1 and a liquid inlet pipe 2 fixedly installed at the center of the upper surface of the heat exchanger shell 1, a shunt chamber 3 connected to the liquid inlet pipe 2 is arranged on the top of the inner wall of the heat exchanger shell 1, a heat exchange chamber 4 is arranged inside the heat exchanger shell 1 and below the shunt chamber 3, a central chamber 5 is arranged inside the heat exchanger shell 1 and below the heat exchange chamber 4, heat exchange tubes 6 distributed at equal intervals are fixedly connected between the shunt chamber 3 and the central chamber 5, a drain pipe 17 fixedly connected to the central chamber 5 is fixedly connected to the lower surface of the heat exchanger shell 1, corrosive liquid enters the inside of the shunt chamber 3 from the liquid inlet pipe 2, and then enters the inside of the central chamber 5 through multiple heat exchange tubes 6, multiple heat exchange tubes 6 increase the contact area of ​​the corrosive liquid, thereby improving the heat exchange efficiency, and then through the drain The liquid is discharged through the liquid pipe 17, and the heat exchange chamber 4 is filled with flowing heat exchange liquid, and the flow direction of the heat exchange liquid is from bottom to top. The heat exchange tube 6 includes a wear-resistant surface layer 7, and the wear-resistant surface layer 7 improves the wear resistance of the surface of the heat exchange tube 6. The heat exchange tube 6 is not easily worn when the heat exchange liquid flows. The inner wall of the wear-resistant surface layer 7 is fixedly connected with a heat conductive layer 8, and the heat conductive layer 8 ensures the heat exchange effect of the heat exchange tube 6. The inner wall of the heat conductive layer 8 is fixedly connected with an anti-corrosion titanium layer 11, and the anti-corrosion titanium layer 11 improves the corrosion resistance of the heat exchange tube 6. The inside of the heat conductive layer 8 is fixedly connected with reinforcing ribs 9 distributed in a circular array. The material of the reinforcing ribs 9 is a heat conductive material. The surface of the reinforcing ribs 9 is fixedly connected with a connecting wire 10. The inside of the heat conductive layer 8 is fixedly connected to the connecting wire 10. The connecting wire 10 and the reinforcing ribs 9 cooperate to improve the strength of the heat exchange tube 6, so that the heat exchange tube 6 is not easily deformed.

[0027] like Figure 1-Figure 5As shown, the heat exchanger shell 1 includes a main body 13, the inner wall of the main body 13 is fixedly connected with a corrosion-resistant layer 12, the corrosion-resistant layer 12 makes the inner wall of the main body 13 not easily corroded, the surface of the main body 13 is coated with a wear-resistant paint layer 14, the wear-resistant paint layer 14 improves the wear resistance of the surface of the main body 13, so that the surface of the main body 13 is not easily damaged, the top and bottom of the front of the heat exchanger shell 1 are fixedly connected with a water inlet pipeline and a drainage pipeline, the water inlet pipeline and the drainage pipeline both include a connecting pipe 15, the back of the connecting pipe 15 is fixedly connected with a shunt pipe 16 distributed at an equal interval, the position of the shunt pipe 16 is staggered with the heat exchange pipe 6, the front of the shunt pipe 16 is fixedly connected with a main pipeline 22, from Heat exchange liquid is added to the water inlet pipeline at the bottom of the heat exchanger shell 1, and is input into the connecting pipe 15 from the main pipeline 22, and then input into the heat exchange chamber 4 from the diversion pipe 16, so that the heat exchange liquid flows on the surface of the heat exchange tube 6 to improve the heat exchange effect, and then from the drainage pipeline at the top of the heat exchanger shell 1. The lower surface of the heat exchanger shell 1 is fixedly connected with a support leg 18, and the lower surface of the support leg 18 is fixedly connected with a base 19. The back of the heat exchanger shell 1 is fixedly connected with a drive motor 20, and the output end of the drive motor 20 passes through the heat exchanger shell 1 and is fixedly connected with an impeller 21. The drive motor 20 drives the impeller 21 to rotate, thereby driving the heat exchange liquid inside the heat exchange chamber 4 to flow, thereby improving the heat exchange effect.

[0028] The utility model provides a technical solution in which the anti-corrosion titanium layer 11 improves the corrosion resistance of the heat exchange tube 6, the interior of the heat conductive layer 8 is fixedly connected to the connecting wire 10, and the connecting wire 10 and the reinforcing rib 9 cooperate to improve the strength of the heat exchange tube 6, so that the heat exchange tube 6 is not easily deformed, and the corrosive liquid enters the inside of the diverter cavity 3 from the liquid inlet pipe 2, and then enters the inside of the concentrated cavity 5 through multiple heat exchange tubes 6. Multiple heat exchange tubes 6 increase the contact area of ​​the corrosive liquid, thereby improving the heat exchange efficiency, and then are discharged through the drain pipe 17, and heat exchange liquid is added from the water inlet pipe at the bottom of the heat exchanger shell 1, input into the inside of the connecting pipe 15 from the main pipe 22, and then input into the inside of the heat exchange cavity 4 from the diverter pipe 16, so that the heat exchange liquid flows on the surface of the heat exchange tube 6, thereby improving the heat exchange effect, and then from the drainage pipe at the top of the heat exchanger shell 1, the driving motor 20 drives the impeller 21 to rotate, thereby driving the heat exchange liquid in the heat exchange cavity 4 to flow, thereby improving the heat exchange effect.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A corrosion-resistant titanium heat exchanger, characterized in that: include: A heat exchanger shell (1) and a liquid inlet pipe (2) fixedly mounted at the center of the upper surface of the heat exchanger shell (1); a flow distribution chamber (3) communicating with the liquid inlet pipe (2) is arranged at the top of the inner wall of the heat exchanger shell (1); a heat exchange chamber (4) is arranged inside the heat exchanger shell (1) and below the flow distribution chamber (3); a central chamber (5) is arranged inside the heat exchanger shell (1) and below the heat exchange chamber (4); heat exchange pipes (6) distributed at equal intervals are fixedly connected between the flow distribution chamber (3) and the central chamber (5); and a liquid discharge pipe (17) fixedly connected to the central chamber (5) is fixedly connected to the lower surface of the heat exchanger shell (1).

2. The corrosion-resistant titanium heat exchanger according to claim 1, characterized in that: The heat exchange tube (6) comprises a wear-resistant surface layer (7), the inner wall of the wear-resistant surface layer (7) is fixedly connected to a heat-conducting layer (8), and the inner wall of the heat-conducting layer (8) is fixedly connected to an anti-corrosion titanium layer (11).

3. The corrosion-resistant titanium heat exchanger according to claim 2, characterized in that: The interior of the heat-conducting layer (8) is fixedly connected with reinforcing ribs (9) distributed in a circular array, and the reinforcing ribs (9) are made of a heat-conducting material.

4. The corrosion-resistant titanium heat exchanger according to claim 3, characterized in that: A connecting wire (10) is fixedly connected to the surface of the reinforcing rib (9), and the interior of the heat conducting layer (8) is fixedly connected to the connecting wire (10).

5. The corrosion-resistant titanium heat exchanger according to claim 1, characterized in that: The heat exchanger shell (1) comprises a main body (13), the inner wall of the main body (13) is fixedly connected with a corrosion-resistant layer (12), and the surface of the main body (13) is coated with a wear-resistant paint layer (14).

6. The corrosion-resistant titanium heat exchanger according to claim 5, characterized in that: The front top and bottom of the heat exchanger housing (1) are both fixedly connected with a water inlet pipeline and a drainage pipeline, and the water inlet pipeline and the drainage pipeline both include a connecting pipe (15).

7. The corrosion-resistant titanium heat exchanger according to claim 6, characterized in that: The back side of the connecting tube (15) is fixedly connected with flow dividers (16) distributed at equal intervals, and the positions of the flow dividers (16) are staggered from the heat exchange tube (6).

8. The corrosion-resistant titanium heat exchanger according to claim 7, characterized in that: The front surface of the diverter pipe (16) is fixedly connected to the main pipe (22), the lower surface of the heat exchanger shell (1) is fixedly connected to the support leg (18), and the lower surface of the support leg (18) is fixedly connected to the base (19).

9. The corrosion-resistant titanium heat exchanger according to claim 7, characterized in that: A drive motor (20) is fixedly connected to the back of the heat exchanger housing (1), and an output end of the drive motor (20) passes through the heat exchanger housing (1) and is fixedly connected to an impeller (21).

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