Machining tool for ultrathin tantalum end socket of heater

Abstract

The utility model discloses a machining tool for an ultrathin tantalum end socket of a heater, and belongs to the technical field of end socket machining tools. The sealing head forming device comprises the male die assembly and the female die assembly corresponding to the male die assembly, the male die assembly is made to move towards the female die assembly through the driving device generating external force, and a tantalum material in the female die assembly is pressed to form a sealing head. The male die assembly comprises a connector, a first connecting column, a second connecting column and an end socket punch. The female die assembly comprises an annular cylinder and a plurality of second fixing assemblies arranged on the annular cylinder. The tantalum sealing head is selected, the corrosion resistance is high, the tantalum sealing head can be designed to be thinner, the heat exchange efficiency is improved, and meanwhile the tantalum material cost is greatly saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of end cap processing tooling, and in particular relates to an end cap processing tooling for an ultra-thin tantalum material heater. Background Art

[0002] A head, also known as an end cap, is a component used to seal the end of a container to isolate the media inside and outside. It is an indispensable component in pressure vessel equipment in many industries, from petrochemicals and atomic energy to food and pharmaceuticals.

[0003] The bayonet heater is a highly efficient heat transfer device. It consists of two sleeved pipes. The outer layer is a heat exchange tube, and the inner layer of the pipe is provided with holes. A gap is left between the outer heat exchange tube and the inner pipe, forming two independent fluid channels, realizing single-tube internal circulation heat exchange, transferring heat from one fluid to another.

[0004] The heat exchange tubes of existing heaters are all cylindrical tubes. Therefore, when manufacturing bayonet-type heaters, the tube heads of the heat exchange tubes need to be sealed. Currently, cast iron, stainless steel, graphite or silicon carbide are mostly used as processing materials for the heads. However, the thermal conductivity of heat exchange tubes made of cast iron is relatively low, and when heat exchange tubes made of graphite or silicon carbide are heated by strong acid media, the corrosion resistance of the heads is poor. The higher the concentration of 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.

[0005] Tantalum has good thermal conductivity and stable chemical properties, but it is expensive and is usually processed into very thin tubes or heads. The heads of heat exchange tubes are small in size, thin in thickness, and require high precision, making them difficult to process. Utility Model Content

[0006] The technical problem solved by the utility model is: a processing tool for an ultra-thin tantalum head of a heater is proposed. The tantalum head is selected, which has strong corrosion resistance. Moreover, the device can design the tantalum head to be thinner, thereby greatly saving the cost of tantalum material while improving the heat exchange efficiency.

[0007] Technical solution: In order to solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0008] A tool for processing an ultra-thin tantalum head of a heater comprises a punch assembly and a die assembly corresponding to the punch assembly. A driving device that generates an external force causes the punch assembly to move toward the die assembly, pressing the tantalum material in the die assembly into a head.

[0009] Preferably, the punch assembly includes a connecting head, a first connecting column, a second connecting column and a head punch; the first connecting column is arranged at the lower end of the connecting head, and the second connecting column is arranged at the lower end of the first connecting column; the head punch is fixedly connected to the bottom end of the first connecting column.

[0010] Preferably, the head punch and the second connecting column are integrally formed, or the head punch and the second connecting column are detachably connected.

[0011] Preferably, the shape of the head punch is the same as the shape of the head to be processed.

[0012] Preferably, a first fixing assembly is provided on the outer wall of the connecting head, and the first fixing assembly includes a first nut, a second nut and a first screw; the first nut is fixedly connected to the outer wall of the connecting head, one end of the first screw passes through the first nut and is arranged on the connecting head, and the second nut is threadedly connected to the other end of the first screw.

[0013] Preferably, the die assembly includes a circular cylinder and a second fixing assembly arranged on the circular cylinder; the second fixing assembly includes a third nut and a second screw; the third nut is fixed on the outer wall of the circular cylinder, and the second screw is arranged on the third nut.

[0014] Preferably, the number of the second fixing components is 3 to 4.

[0015] Preferably, the driving device for generating the external force is a hydraulic jack or a punch press.

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

[0017] (1) The utility model is provided with a punch assembly and a die assembly corresponding to the punch assembly. The punch assembly includes a connecting head, a first connecting column, a second connecting column and a head punch, and a first fixing assembly arranged on the outer wall of the connecting head. The die assembly includes a circular cylinder and a plurality of second fixing assemblies arranged on the circular cylinder. Tantalum is used to make the head, which has strong corrosion resistance and can support heat exchange of high-concentration strong acid materials. In addition, the device can design the head made of tantalum to be thinner, thereby greatly saving the cost of tantalum materials while improving the heat exchange efficiency.

[0018] (2) The utility model sets a first fixing component on the outer side wall of the connecting head, which can facilitate fixing the output end of the hydraulic jack and conveniently drive the punch component to press and form the metal tantalum in the die component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural diagram of the punch assembly of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the female mold assembly of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solutions 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.

[0023] like Figure 1-3 As shown, the ultra-thin tantalum material head processing tooling for the heater provided in this embodiment has a main structure including a punch assembly 1 and a die assembly 2 corresponding to the punch assembly 1. The punch assembly 1 is moved toward the die assembly 2 by a driving device that generates an external force, and the tantalum material in the die assembly 2 is pressed and formed into a head.

[0024] like Figure 2 As shown, the punch assembly 1 includes a connecting head 11, a first connecting column 12, a second connecting column 13 and a head punch 14; two first fixing components 3 are provided on the outer wall of the connecting head 11, and the first fixing component 3 includes a first nut 31, a second nut 32 and a first screw 33; the first nut 31 is fixedly connected to the outer wall of the connecting head 11, one end of the first screw 33 passes through the first nut 31 and is arranged on the connecting head 11, and the second nut 32 is threadedly connected to the other end of the first screw 33; the first connecting column 12 is arranged at the lower end of the connecting head 11, and the second connecting column 13 is arranged at the lower end of the first connecting column 12; the head punch 14 is fixedly connected to the bottom end of the first connecting column 12.

[0025] In this embodiment, the head punch 14 and the second connecting column 13 are integrally formed, or the head punch 14 and the second connecting column 13 are detachably connected or threadedly connected, and the shape of the second connecting column 13 can be any one of cylindrical, square, and polygonal.

[0026] By arranging two first fixing components 3 at both ends of the connector 11 , it is convenient to hold and position the drive device that generates the external force and fix it to the connector 11 .

[0027] In this embodiment, the head punch 14 has the same shape as the head to be processed. In this embodiment, the head to be processed is a semicircular head, so the upper part of the head punch 14 is a cylinder and the lower part is a hemisphere. The diameters of the upper and lower parts of the head punch 14 are the same, and a driving device that generates external force is connected to the top of the punch assembly 1.

[0028] In this embodiment, the driving device that generates the external force is a hydraulic jack or a punch press.

[0029] like Figure 3 As shown, the die assembly 2 includes a circular cylinder 21 and a plurality of second fixing assemblies 4 arranged on the circular cylinder 21; the second fixing assembly 4 includes a third nut 41 and a second screw 42; the third nut 41 is fixedly arranged on the outer wall of the circular cylinder 21, and the second screw 42 is arranged on the third nut 41.

[0030] In this embodiment, the number of the second fixing components 4 is 3 to 4, and the upper surface of the annular cylinder 21 is in contact with the first connecting column 12 .

[0031] By arranging a plurality of second fixing components 4 on the outer wall of the annular cylinder 21 , it is convenient to control the force of pressing the punch component 1 downward.

[0032] In this embodiment, the interior of the annular cylinder 21 is a groove wall, and the shape of the groove wall is the same as that of the head punch 14. Its size is slightly larger than that of the head punch 14, leaving a certain space gap to facilitate the head punch 14 to press downward.

[0033] The working principle or usage process of the present invention is as follows: taking the hydraulic jack as an example, when using it, adjust the hydraulic jack, place the output end of the hydraulic jack in the connecting head 11, and then adjust the first screw 33 and the second nut 32 so that the hydraulic jack is fixed in the groove of the connecting head 11, and then place the metal tantalum material in the annular cylinder 21, and adjust the positions of the punch assembly 1 and the die assembly 2 so that their axes are consistent, start the hydraulic jack, and move the output end of the hydraulic jack, thereby driving the punch assembly 1 to press the metal tantalum in the die assembly 2 downward, thereby pressing the metal tantalum material into an ultra-thin semicircular head; after the pressing is completed, close the hydraulic jack.

[0034] The utility model is provided with a male mold component and a female mold component corresponding to the male mold component, the male mold component includes a connecting head, a first connecting column, a second connecting column and a head punch; a first fixing component is arranged on the outer side wall of the connecting head, and the female mold component includes a circular cylinder and a plurality of second fixing components arranged on the circular cylinder. Tantalum is used to make the head, which has strong corrosion resistance and can support heat exchange of high-concentration strong acid materials. In addition, the device can design the head made of tantalum to be thinner, thereby greatly saving the material cost of tantalum while improving the heat exchange efficiency.

[0035] 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 principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A tool for processing ultra-thin tantalum heater heads, characterized by: It comprises a male mold component (1) and a female mold component (2) arranged corresponding to the male mold component (1), wherein a driving device generating an external force causes the male mold component (1) to move toward the female mold component (2), and the tantalum material in the female mold component (2) is pressed and formed into a head; The punch assembly (1) comprises a connecting head (11), a first connecting column (12), a second connecting column (13) and a head punch (14); the first connecting column (12) is arranged at the lower end of the connecting head (11), and the second connecting column (13) is arranged at the lower end of the first connecting column (12); the head punch (14) is fixedly connected to the bottom end of the first connecting column (12).

2. The ultra-thin tantalum heater head processing tool according to claim 1 is characterized in that: The end cap punch (14) and the second connecting column (13) are integrally formed, or the end cap punch (14) and the second connecting column (13) are detachably connected.

3. The ultra-thin tantalum heater head processing tool according to claim 1 is characterized in that: The shape of the head punch (14) is the same as the shape of the head to be processed.

4. The ultra-thin tantalum heater head processing tool according to claim 1 is characterized in that: A first fixing assembly (3) is provided on the outer wall of the connecting head (11), and the first fixing assembly (3) comprises a first nut (31), a second nut (32), and a first screw (33); the first nut (31) is fixedly connected to the outer wall of the connecting head (11), one end of the first screw (33) passes through the first nut (31) and is arranged on the connecting head (11), and the second nut (32) is threadedly connected to the other end of the first screw (33).

5. The ultra-thin tantalum heater head processing tool according to claim 1 is characterized in that: The die assembly (2) comprises a circular cylinder (21) and a second fixing assembly (4) arranged on the circular cylinder (21); the second fixing assembly (4) comprises a third nut (41) and a second screw (42); the third nut (41) is fixedly arranged on the outer wall of the circular cylinder (21), and the second screw (42) is arranged on the third nut (41).

6. The ultra-thin tantalum heater head processing tool according to claim 5, characterized in that: The number of the second fixing components (4) is 3 to 4.

7. The ultra-thin tantalum heater head processing tool according to claim 1, characterized in that: The driving device for generating the external force is a hydraulic jack or a punch press.

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