WO2023024314A1

WO2023024314A1 - Tantalum lining structure of apparatus

Info

Publication number: WO2023024314A1
Application number: PCT/CN2021/135557
Authority: WO
Inventors: 张金博; 王国君; 朱义乐; 王志强; 黄佳敏; 洪志敏; 吴振飞; 苑志兵; 杨宽
Original assignee: 浙江诚信医化设备有限公司
Priority date: 2021-08-27
Filing date: 2021-12-04
Publication date: 2023-03-02
Also published as: CN215506257U

Abstract

A tantalum lining structure of an apparatus, the tantalum lining structure comprising a cylindrical lining layer (1), wherein the lining layer (1) is located in a base cylinder body (2) of the apparatus and arranged along an inner side wall of the base cylinder body (2); and the lining layer (1) is provided with several first annular cylinder sections (3), with the side of each first cylinder section (3) close to the base cylinder body (2) being configured to be concave, and the side thereof away from the base cylinder body (2) being configured to be convex. The tantalum lining structure of an apparatus has the advantage of low cost under the premise of ensuring an equal compressive strength.

Description

An equipment tantalum lining structure

technical field

The invention belongs to the technical field of machinery and relates to a tantalum lining structure for equipment.

Background technique

Tantalum is a light gray rare precious metal material with a melting point of 2996°. The price of tantalum material is very expensive. Tantalum equipment usually adopts composite plate structure or lining structure to reduce equipment cost.

Existing structures that use tantalum materials as linings, for example, Chinese patent literature discloses a scrubber used in a dilute acid concentration device [application number: 201220741413.1; authorized announcement number: CN203017956U], which includes an upper head, The middle cylinder and the lower head; the upper head is equipped with a gas phase outlet and a liquid inlet nozzle; the middle cylinder is equipped with upper and lower hand holes, and fillers are placed inside; There is a liquid pipe port; a supporting orifice is provided between the middle cylinder and the connecting flange of the upper head; a supporting ring plate is provided between the middle cylinder and the connecting flange of the lower head, and the supporting ring is fixed between the two flanges. There is a support grid on the support ring plate, and a support orifice plate is placed on the support grid; the base material of the upper head and the support ring plate is carbon steel, lined with PTFE material; the base material of the middle cylinder and the lower head It is made of carbon steel and lined with tantalum material; the supporting grid is made of steel pipe coated with PTFE material, and the supporting orifice plate, fixing strip and fixing block are all made of PTFE material.

For the steam scrubber with this structure, the base material of the middle cylinder and the lower head is made of carbon steel, lined with tantalum material, and the inner liner is set against the inner wall of the base material. However, the steam scrubber with this structure is lined with tantalum material in a straight cylindrical shape, and the tantalum material lining structure made of tantalum material is relatively weak against internal and external pressure, so relatively thick Tantalum material is used to achieve the effect of corrosion resistance and pressure resistance, but because the price of tantalum material is very expensive, the use of relatively thick tantalum material will greatly increase the cost.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems in the prior art, and propose a tantalum lining structure for equipment, and solve the technical problem of how to reduce the cost of the equipment under the premise of ensuring the compressive strength.

The purpose of the present invention can be achieved through the following technical solutions: a tantalum material lining structure for equipment, the lining structure includes a cylindrical lining layer, the lining layer is located in the base cylinder of the equipment and along the inner side of the base cylinder The wall arrangement is characterized in that the lining layer has several annular first cylinder sections, the side of the first cylinder section close to the base cylinder is recessed, and the side away from the base cylinder is protruding. .

The lining layer is made of tantalum material, which is used as a corrosion-resistant layer to withstand material corrosion, and the base cylinder (ie base material) can be made of conventional materials such as steel to withstand pressure loads. The setting of the first cylinder section is similar to setting several ribs protruding on the lining of the straight cylinder, which is similar to the bellows structure. The side of the first cylinder section close to the base cylinder is concave, and the side away from the base cylinder is convex. Out setting, that is, the first barrel section is set protruding inward. The lining structure increases the moment of inertia of the lining section by forming a corrugated structure, and increases the ability of the lining to resist internal and external pressure. Therefore, a thinner lining can be used under the premise of meeting the same pressure resistance, reducing the use of tantalum materials. volume and reduce costs. Through the setting of the first cylinder section, a certain buffer variable is provided, which can resist the different expansion and contraction rates of the tantalum lining and the base cylinder steel under high and low temperature loads. The first cylinder saves energy and releases local stress to ensure that the lining structure is not affected by pressure. Frequent fluctuations cause fatigue damage and improve service life. The ring here can be a closed ring or a split ring. In the above-mentioned tantalum lining structure for equipment, several first cylinder segments are arranged in parallel and at equal intervals, and the plane where the first cylinder segments are located is perpendicular to the axial centerline of the lining. This structure enables the first cylinder section to better improve the moment of inertia of the liner section, increase the liner's ability to resist internal and external pressures, and enable the liner to be made of thinner tantalum under the premise of meeting the same pressure resistance. It is made of tantalum material to reduce the consumption of tantalum material.

In the aforementioned equipment tantalum lining structure, the first cylinder section is formed by stamping or rolling.

In the above-mentioned tantalum material lining structure for equipment, the lining layer is formed by bending the tantalum material sheet into a cylindrical shape and then welding at the joint. With this structure, the welding seam of the lining layer has only one butt welding seam, which reduces the welding workload of the lining layer and facilitates the processing of the lining layer.

In the above-mentioned tantalum lining structure for equipment, the thickness of the lining layer is between 0.8-1 mm. The thickness of the liner is thinner, which reduces the usage of tantalum material and reduces the cost.

In the above-mentioned tantalum material lining structure for equipment, the liner is in clearance fit with the base cylinder, and the base cylinder has a through signal hole, and the gap between the liner and the base cylinder is closely related to the signal The holes are connected. A detector can be installed at the signal hole to detect whether the liner is leaking, so as to ensure safe use and reduce the cost of later maintenance.

In the above-mentioned tantalum material lining structure of equipment, a liquid outlet pipe is connected to the middle of the base cylinder, and a ring-shaped liner is arranged on the inner side wall of the liquid outlet pipe. The liquid outlet pipe and The connection of the base cylinder forms a concave first groove, and the liner has a liquid outlet that passes through and is compatible with the liquid outlet. An annular second cylinder section, the second cylinder section is embedded in the first groove, and the liner is connected with the liner and fixed at the joint by welding. The liner is made of tantalum, and the liner is connected with the liner with a second barrel joint, which can improve the strength of the joint between the liner and the liner and release local stress. At the same time, the second barrel joint is embedded In the first groove, the liner and the liner will not hinder the flow of gas and liquid. At the same time, the first groove can also act as a positioning groove to a certain extent. Even if there are different expansion and contraction rates between the tantalum lining and the base cylinder steel under high and low temperature loads, it will not cause displacement between the two, ensuring structural stability.

In the above-mentioned tantalum material lining structure for equipment, an annular lining ring is provided at the end surface of the base cylinder, and a ring-shaped second groove is formed at the connection between the end surface of the base cylinder and the inner side wall, The lining ring has a ring-shaped third cylinder section, and the third cylinder section is embedded in the second groove, and the lining ring and the lining layer are connected and fixed at the joint by welding. The lining ring is made of tantalum material, and the third cylinder section is set at the connection between the lining ring and the lining layer, which can improve the strength of the connection between the lining ring and the lining layer and can release local stress. At the same time, the third cylinder section is embedded in the In the second groove, the connection between the base cylinder and the end cap will not be hindered. Simultaneously, this second groove can also serve as the positioning groove function to a certain extent.

Compared with the prior art, the tantalum lining structure of equipment provided by the present invention has the following advantages:

1. The tantalum lining structure of this equipment improves the cross-sectional moment of inertia and strength of the lining structure by setting the first cylinder section, the second cylinder section and the third cylinder section, and increases the lining layer's ability to resist internal and external pressure. Under the premise of meeting the same compressive capacity, a thinner lining can be used to reduce the amount of tantalum material used and reduce the cost; at the same time, the first cylinder section, the second cylinder section and the third cylinder section can save energy and release local stress to ensure that the lining structure does not Fatigue damage caused by frequent pressure fluctuations increases service life.

2. The welding seam of the tantalum lining structure lining of this equipment has only one butt welding seam, which reduces the welding workload of the lining and facilitates the processing of the lining.

Description of drawings

Figure 1 is a sectional view of the overall structure of the tantalum lining structure of the device.

Fig. 2 is a structural schematic diagram of the first cylinder section of the tantalum lining structure of the equipment.

Fig. 3 is a structural schematic diagram of the second cylinder section of the tantalum lining structure of the equipment.

Fig. 4 is a structural schematic diagram of the third cylinder section of the tantalum lining structure of the equipment.

In the figure, 1. Lining layer; 2. Base cylinder; 3. First cylinder section; 4. Signal hole; 5. Liquid outlet pipe; 6. Liner; 7. First groove; 8. Second cylinder section ; 9, lining ring; 10, the second groove; 11, the third cylinder section.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

As shown in Figure 1, this equipment includes a base cylinder 2 and a lining structure. The base cylinder 2 is made of steel, and the lining structure is made of tantalum. The lining structure includes a lining 1, a lining pipe 6, and a lining ring. 9. Both the lining layer 1 and the lining pipe 6 are cylindrical, and the lining ring 9 is annular.

As shown in Figure 2, the liner 1 is located in the base cylinder 2 and arranged along the inner side wall of the base cylinder 2, and the liner 1 and the base cylinder 2 are in clearance fit. In this embodiment, the liner 1 has six Ring-shaped first cylinder section 3, six first cylinder sections 3 are arranged in parallel and at equal intervals, the first cylinder section 3 is perpendicular to the axial centerline of the lining 1, and the first cylinder section 3 is formed by rolling , the thickness of the liner 1 is 0.9mm, in actual production, the number of the first cylinder section 3 can be four or eight, the first cylinder section 3 can be formed by stamping, the thickness of the liner 1 can be 0.8mm or 1mm. The liner 1 is formed by bending a tantalum sheet into a cylindrical shape and then welding at the joint. The side of the first cylinder section 3 close to the base cylinder 2 is recessed, and the side away from the base cylinder 2 is protruded. The body 2 has a through signal hole 4 , and the gap between the liner 1 and the base cylinder body 2 communicates with the signal hole 4 .

As shown in Figure 3, a liquid outlet pipe 5 is connected to the middle of the base cylinder 2, and an annular liner 6 is provided on the inner side wall of the liquid outlet pipe 5, and the connection between the liquid outlet pipe 5 and the base cylinder 2 forms a The first groove 7 is concavely set, and the liner 1 has a liquid outlet that passes through and is adapted to the liquid outlet pipe 5. The liner 1 has a ring-shaped second barrel section 8 at the edge of the liquid outlet , the second cylinder section 8 is embedded in the first groove 7, and the liner 6 and the liner 1 are fixedly connected by welding.

As shown in Figure 4, an annular backing ring 9 is provided at the end surface of the base cylinder body 2, and a ring-shaped second groove 10 is provided at the connection between the end surface of the base cylinder body 2 and the inner side wall. The third cylinder section 11 is inserted into the second groove 10, and the lining ring 9 and the lining layer 1 are fixedly connected by welding.

The thickness of the liner 1 and the number, wave height and spacing of the first barrel section 3 are obtained through analysis and calculation, and then the tantalum sheet is processed by rolling to form the first barrel section 3, and then the tantalum sheet is bent into a After cylindrical shape, the liner 1 is formed by welding at the joint.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although the liner 1, the base cylinder 2, the first cylinder section 3, the signal hole 4, the liquid outlet pipe 5, the liner 6, the first groove 7, the second cylinder section 8, and the lining ring 9 are frequently used in this paper. , the second groove 10, the third barrel section 11 and other terms, but the possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims

A tantalum lining structure for equipment, the lining structure includes a cylindrical lining (1), the lining (1) is located in the base cylinder (2) of the equipment and along the inner side of the base cylinder (2) The wall setting is characterized in that the lining (1) has several annular first cylinder sections (3), and the side of the first cylinder section (3) close to the base cylinder (2) is recessed Set, the side protruding away from the base cylinder (2) is set.
The tantalum material lining structure for equipment according to claim 1, characterized in that, several first cylinder sections (3) are arranged in parallel and at equal intervals, and the plane where the first cylinder sections (3) are located is the same as the liner. The axial centerlines of layers (1) are perpendicular.
The tantalum lining structure for equipment according to claim 1, characterized in that, the first cylinder section (3) is formed by stamping or rolling.
A tantalum material lining structure for equipment according to claim 1, 2 or 3, characterized in that the lining layer (1) is formed by bending a tantalum sheet into a cylindrical shape and then welding at the joint.
A tantalum material lining structure for equipment according to claim 1, 2 or 3, characterized in that the thickness of the lining layer (1) is between 0.8-1mm.
A tantalum material lining structure for equipment according to claim 1, 2 or 3, characterized in that the lining layer (1) is in clearance fit with the base cylinder (2), and the base cylinder (2) There is a through signal hole (4), and the gap between the liner (1) and the base cylinder (2) communicates with the signal hole (4).
A tantalum material lining structure for equipment according to claim 1, 2 or 3, characterized in that a liquid outlet pipe (5) is connected to the middle of the base cylinder (2), and the liquid outlet pipe ( 5) is provided with a ring-shaped liner (6) on the inner side wall, and the connection between the liquid outlet pipe (5) and the base cylinder (2) forms a concave first groove (7). The liner (1) has a penetrating liquid outlet adapted to the liquid outlet pipe (5), and the liner (1) has a ring-shaped second barrel section (8) at the edge of the liquid outlet , the second cylinder section (8) is embedded in the first groove (7), the liner (6) is connected to the liner (1) and fixed at the joint by welding.
A tantalum material lining structure for equipment according to claim 1, 2 or 3, characterized in that an annular lining ring (9) is provided at the end face of the base cylinder (2), and the base cylinder There is an annular second groove (10) at the connection between the end surface of (2) and the inner side wall, and the ring-shaped third cylinder section (11) is provided on the said lining ring (9), and the third cylinder section ( 11) Embedded in the second groove (10), and the lining ring (9) is connected with the lining layer (1) and fixed at the joint by welding.