Bayonet type corrosion-resistant tantalum heater

Abstract

The utility model discloses a bayonet type corrosion-resistant tantalum heater, and belongs to the technical field of chemical heating. Comprising a heat exchange assembly and a heat exchange medium inlet cavity formed in the side end of the heat exchange assembly, the heat exchange assembly comprises an outer assembly and an inner assembly, the inner assembly is arranged in the outer assembly in a sleeved mode, and a heat exchange cavity is formed by the inner assembly and the outer assembly; a heat exchange medium enters the interior of the internal assembly through the heat exchange medium inlet, exchanges heat in the heat exchange cavity along the through holes, and is discharged through the heat exchange medium outlet after heat exchange is completed. The outer tube and the tantalum plate which are made of tantalum materials are selected, corrosion resistance is high, heat exchange of high-concentration strong acid materials can be supported, the tantalum outer tube can be designed to be thinner on the basis of an existing tantalum outer tube, and the tantalum material cost is greatly saved while heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical material heating, and in particular relates to a bayonet-type corrosion-resistant tantalum heater. Background Art

[0002] An electric heater is an electrical appliance that uses electrical energy to achieve a heating effect. It is small in size, has high heating power, is widely used, uses an intelligent control mode, has high temperature control accuracy, and can be connected to a computer. It has a wide range of applications, long life, and high reliability. The core of the heater principle is energy conversion, and the most common is the conversion of electrical energy into thermal energy.

[0003] When existing heaters heat strong acid media, cast iron, graphite or silicon carbide are used as the processing materials of the outer tube. However, the thermal conductivity of the outer tube made of cast iron is relatively low, and when the outer tube made of graphite or silicon carbide is used for strong acid media heating, it must be used in a dilute strong acid medium with a concentration of less than 80%. The higher the concentration of the strong acid, the easier it is for the equipment to be corroded, thereby shortening the service life of the equipment and affecting the heat exchange efficiency. In addition, the wall of the existing outer tube is relatively thick, which causes a large waste of energy during heating and greatly increases the heating cost. Utility Model Content

[0004] The technical problem solved by the utility model is as follows: a bayonet-type corrosion-resistant tantalum heater is proposed. The outer tube made of tantalum can not only design the tube wall of the tantalum outer tube to be thinner, but also improve the corrosion resistance of the outer tube, thereby improving the heat exchange efficiency of the existing heater and greatly saving the material cost of tantalum.

[0005] Technical solution: In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A bayonet-type corrosion-resistant tantalum heater comprises a heat exchange component and a heat exchange medium inlet cavity arranged at the side end of the heat exchange component. The heat exchange component comprises an external component and an internal component. The internal component is sleeved in the external component and forms a heat exchange cavity with the external component. The heat exchange medium enters the internal component through the heat exchange medium inlet, exchanges heat in the heat exchange cavity along the through hole, and is discharged through the heat exchange medium outlet after the heat exchange is completed.

[0007] Preferably, the heat exchange medium inlet is arranged at the upper end of the heat exchange medium inlet cavity, and the heat exchange medium outlet is arranged at the lower end of the heat exchange medium inlet cavity.

[0008] Preferably, the external component includes a first fixing plate, a tantalum plate, a first sleeve and an outer tube; the tantalum plate is arranged on the first fixing plate, and the first sleeve is arranged through the first fixing plate and the tantalum plate; the outer tube is arranged in the first sleeve.

[0009] Preferably, a plurality of platinum sheets are provided on the tantalum plate.

[0010] Preferably, a top cover is welded to the top of the outer tube, and both the top cover and the tantalum plate are made of metallic tantalum.

[0011] Preferably, the internal component comprises a second fixing plate and an inner tube; a cylindrical groove is provided in the middle of the second fixing plate, and the inner tube passes through the groove and is arranged on the second fixing plate.

[0012] Preferably, the top end of the inner tube is in a sharp angle shape, and a plurality of guide grooves are provided at the top end of the inner tube.

[0013] Preferably, there are multiple through holes, which are arranged at the upper end of the inner tube close to the guide groove.

[0014] Preferably, a polytetrafluoroethylene gasket is provided between the first fixing plate and the second fixing plate.

[0015] Preferably, a material inlet is provided at the upper end of the tank body, a plurality of material outlets are provided on the tank body, a baffle is provided inside the tank body, and a drain port is provided at the lower end of the tank body.

[0016] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0017] (1) The utility model is provided with a heat exchange medium inlet chamber, a heat exchange component and a tank body; one end of the heat exchange component is connected to the heat exchange medium inlet chamber, and the other end passes through a connecting tube and enters the tank body; the heat exchange component includes an external component and an internal component sleeved in the external component; the external component includes a first fixed plate, a tantalum plate, an outer tube and a platinum sheet. The outer tube and tantalum plate are made of tantalum material, which has strong corrosion resistance and can support heat exchange of high-concentration (concentration above 80%) strong acid materials. The tantalum outer tube of the present application can be designed to be thinner in thickness on the basis of the existing tantalum outer tube, thereby greatly saving the cost of tantalum materials while improving the heat exchange efficiency.

[0018] (2) The utility model provides a polytetrafluoroethylene gasket between the first fixing plate and the connecting tube, a polytetrafluoroethylene gasket between the first fixing plate and the second fixing plate, and a polytetrafluoroethylene gasket between the heat exchange medium inlet chamber and the heat exchange component. The device is sealed by the polytetrafluoroethylene gasket to improve the overall sealing performance of the device.

[0019] (3) The outer tube of the utility model is arranged in the first sleeve, and the outer wall of the first sleeve is welded to the bottom end of the first sleeve, which can effectively block the materials that need to be heat exchanged, prevent the heat exchange components from being corroded, extend the service life of the device, and improve the heat exchange efficiency of the device.

[0020] (4) The utility model provides a plurality of platinum sheets on the tantalum plate to absorb hydrogen ions in the material to be heated and enhance the reaction efficiency and rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the external components of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the internal components of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the utility model with separated external components and internal components;

[0025] Figure 5 It is a structural schematic diagram of the external components, internal components and tank body of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further explained below in conjunction with specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0027] like Figure 1-5 As shown, the utility model proposes a bayonet-type corrosion-resistant tantalum heater, including a heat exchange medium inlet chamber 1, a heat exchange component, a connecting tube 4, a tank body 5, a heat exchange medium inlet 11, a heat exchange medium outlet 12, a material inlet 51, a material outlet 52, a drain port 53, a baffle and a support base 6.

[0028] In this embodiment, the heat exchange medium inlet chamber 1, the connecting tube 4 and the tank body 5 are all made of corrosion-resistant materials.

[0029] like Figure 1 As shown, a heat exchange medium inlet 11 is provided at the upper end of the heat exchange medium inlet chamber 1 , a heat exchange medium outlet 12 is provided at the lower end of the heat exchange medium inlet chamber 1 ; and a heat exchange component is provided at the side end of the heat exchange medium inlet chamber 1 .

[0030] like Figure 1-3 As shown, the heat exchange component includes an external component 2 and an internal component 3 sleeved in the external component 2; the external component 2 includes a first fixing plate 21, a tantalum plate 22, a first sleeve 23, an outer tube 24 and a top cover 25.

[0031] The first fixing plate 21 is circular and made of stainless steel. A tantalum plate 22 is welded to the inner surface of the first fixing plate 21. Due to the different materials of the two, silver brazing is used between the first fixing plate 21 and the tantalum plate 22; the first sleeve 23 passes through the first fixing plate 21 and the tantalum plate 22, and is expanded and connected in the through holes in the first fixing plate 21 and the tantalum plate 22; one end of the outer tube 24 is partially embedded in the first sleeve 23, the diameter of the first sleeve 23 is larger than the diameter of the outer tube 24, and the outer wall of the outer tube 24 is welded to the bottom end of the first sleeve 23; a top cover 25 is welded to the top end of the outer tube 24.

[0032] A plurality of platinum sheets 26 are provided on the tantalum plate 22. The platinum sheets 26 are round and are used to absorb hydrogen in the material to be heat exchanged. The surface of platinum has a high adsorption capacity and can adsorb molecules such as oxygen and hydrogen. The platinum catalyst has good regeneration ability. Through high-temperature regeneration, the molecules and products adsorbed on the surface can be removed, the active sites on the catalyst surface can be restored, and the damage of hydrogen ions to the metal can be prevented.

[0033] In this embodiment, the end of the first sleeve 23 leaves a margin on the surface of the tantalum plate 22 and the outer surface of the first fixing plate 21 to facilitate expansion of the first sleeve 23 and the tantalum plate 22 and welding of the first sleeve 22 and the outer tube 24.

[0034] The first sleeve 22 and the outer tube 24 as well as the outer tube 24 and the top cover 25 can be welded by fusion welding, pressure welding and brazing as needed. In this embodiment, the first sleeve 22 and the outer tube 24 as well as the outer tube 24 and the top cover 25 are welded by argon arc welding.

[0035] In this embodiment, the first sleeve 22, the outer tube 24 and the top cover 25 are all made of metal tantalum. The length of the outer tube is 3-5m, the diameter of the outer tube 24 is 25mm, and the thickness of the outer tube 24 can be selected as 0.38mm, 0.4mm, or 0.5mm as needed; in this embodiment, the thickness of the outer tube 24 is 0.5mm, and the thickness of the tantalum plate 22 is 0.5mm.

[0036] like Figure 3 As shown, the internal component 3 includes a second fixed plate 31 and an inner tube 32; a cylindrical groove is provided in the middle of the second fixed plate 31, and the inner tube 32 passes through the groove and is arranged on the second fixed plate 31; the top of the inner tube 32 is in a sharp angle shape, and a plurality of guide grooves 33 are provided at the top of the inner tube 32 for guiding the heat exchange medium; a plurality of circular through holes 34 are provided at the upper end of the inner tube 32 near the guide grooves 33, so that the heat exchange medium can quickly fill the entire heat exchange cavity, and the heat exchange medium flows out from the through holes 34 and enters the heat exchanger along the guide grooves 33, and the through holes 34 are close to the top of the inner tube 32, so that the heat exchange medium can quickly exchange heat and improve the heat exchange efficiency.

[0037] The inner tube 32 is sleeved into the outer tube 24 , the first fixing plate 21 and the second fixing plate 31 are sealed, and a heat exchange cavity is formed between the outer wall of the inner tube 32 and the inner wall of the outer tube 24 .

[0038] In this embodiment, the inner tube 32 and the second fixing plate 31 are both made of stainless steel. The diameter of the inner tube 32 can be selected from 14 mm to 18 mm according to needs. In this embodiment, the diameter of the inner tube 32 is 18 mm.

[0039] like Figure 4 As shown, a plurality of holes 7 are provided on the second fixing plate 31 and the first fixing plate 21 , and the first fixing plate 21 and the second fixing plate 31 are connected via the holes 7 .

[0040] In this embodiment, a polytetrafluoroethylene gasket is provided between the first fixing plate 21 and the connecting tube 4, and a polytetrafluoroethylene gasket is provided between the first fixing plate 21 and the second fixing plate 31. The polytetrafluoroethylene gasket is used to seal the device to improve the overall sealing performance of the device.

[0041] In this embodiment, the number of the outer tube 24, the first sleeve 23 and the inner tube 32 are all set to be multiple.

[0042] like Figure 5 As shown, the heat exchange component penetrates into the tank body 5 and is connected to the tank body 5 through the connecting tube 4; a material inlet 51 is provided at the upper end of the tank body 5, a plurality of material outlets 52 are provided on the tank body 5, a baffle is provided at one end of the tank body 5 close to the connecting tube 4, the outer tube 24 penetrates the baffle and enters the tank body 5, and a drain port 53 and a plurality of support bases 6 are provided at the lower end of the tank body 5.

[0043] The working principle or use process of the utility model: when a heater is needed, steam or heat transfer oil can be selected as the heat exchange medium according to the needs. In this embodiment, steam is selected as the heat exchange medium, the heat exchange medium inlet 11 is opened, and steam is continuously input into the heat exchange medium inlet chamber 1, and the steam enters the inner tube 32, passes through the connecting tube 4 and the baffle plate and enters the tank body 5; at the same time, the material inlet 51 is opened, and the material enters the tank body 5 through the material inlet 51, and the material accumulates inside the tank body 5. The steam is discharged from the through hole 34 on the inner tube 32 along the guide groove 33 to the inside of the outer tube 24, thereby heating the material outside the outer tube 24. After the heat exchange of the material is completed, it rises to the material outlet 52 and is discharged from the material outlet 52. At the same time, the steam moves toward the heat exchange medium inlet 11 along the inner wall of the outer tube 24, passes through the connecting tube 4, and enters the groove of the second fixing plate 31. The steam is blocked by the groove and condensed into water, and finally discharged through the heat exchange medium outlet 12. The residual material in the tank body 5 can be discharged through the drain port 53.

[0044] The utility model is provided with a heat exchange medium inlet cavity, a heat exchange component and a tank body; one end of the heat exchange component is connected to the heat exchange medium inlet cavity, and the other end passes through a connecting tube to enter the tank body; the heat exchange component includes an external component and an internal component sleeved in the external component; the external component includes a first fixed plate, a tantalum plate, an outer tube and a platinum sheet, and the outer tube is made of tantalum material, which has strong corrosion resistance and can support the use of high-concentration (concentration above 80%) strong acid materials, and the tantalum outer tube of the present application can be designed to be thinner in thickness on the basis of the existing tantalum outer tube, thereby greatly saving the cost of tantalum materials while improving the heat exchange efficiency.

[0045] 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 bayonet-type corrosion-resistant tantalum heater, comprising a heat exchange component and a heat exchange medium inlet cavity (1) arranged at a side end of the heat exchange component, characterized in that: The heat exchange component comprises an external component (2) and an internal component (3); the internal component (3) is sleeved inside the external component (2) and forms a heat exchange cavity with the external component (2); the heat exchange medium exchanges heat in the heat exchange cavity; The external component (2) comprises a first fixing plate (21), a tantalum plate (22), a first sleeve (23) and an outer tube (24); the tantalum plate (22) is arranged on the first fixing plate (21), the first sleeve (23) is arranged through the first fixing plate (21) and the tantalum plate (22); the outer tube (24) is arranged in the first sleeve (23); The internal component (3) comprises a second fixing plate (31) and an inner tube (32); a cylindrical groove is provided in the middle of the second fixing plate (31), and the inner tube (32) penetrates the groove and is arranged on the second fixing plate (31).

2. The bayonet-type corrosion-resistant tantalum heater according to claim 1, characterized in that: A heat exchange medium inlet (11) is provided at the upper end of the heat exchange medium inlet chamber (1), and a heat exchange medium outlet (12) is provided at the lower end of the heat exchange medium inlet chamber (1). The heat exchange medium enters the interior of the internal component through the heat exchange medium inlet (11), exchanges heat in the heat exchange chamber along the through hole (34), and is discharged through the heat exchange medium outlet (12) after the heat exchange is completed.

3. The bayonet-type corrosion-resistant tantalum heater according to claim 1, characterized in that: A plurality of platinum sheets (26) are provided on the tantalum plate (22).

4. The bayonet-type corrosion-resistant tantalum heater according to claim 1, characterized in that: A top cover (25) is welded to the top end of the outer tube (24), and the top cover (25) and the tantalum plate (22) are both made of metallic tantalum.

5. The bayonet-type corrosion-resistant tantalum heater according to claim 1, characterized in that: The top end of the inner tube (32) is in a sharp angle shape, and a plurality of guide grooves (33) are provided at the top end of the inner tube (32).

6. The bayonet-type corrosion-resistant tantalum heater according to claim 2, characterized in that: The through holes (34) are multiple in number and are arranged at a position on the upper end of the inner tube (32) close to the guide groove (33).

7. The bayonet-type corrosion-resistant tantalum heater according to claim 1, characterized in that: A polytetrafluoroethylene gasket is provided between the first fixing plate (21) and the second fixing plate (31).

8. The bayonet-type corrosion-resistant tantalum heater according to claim 1, characterized in that: The heat exchange component penetrates into the tank body (5) and is connected to the tank body (5) via a connecting tube (4); a material inlet (51) is provided at the upper end of the tank body (5), a plurality of material outlets (52) are provided on the tank body (5), a baffle is provided inside the tank body (5), and a drain outlet (53) is provided at the lower end of the tank body (5).

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