Novel titanium material flange connecting structure

Abstract

The utility model relates to the technical field of equipment flanges, in particular to a novel titanium material flange connecting structure which comprises a flange body and a composite plate cylinder base layer, the top end of the composite plate cylinder base layer is fixedly connected with a composite plate cylinder composite layer, and a first bushing ring is welded to one side of the composite plate cylinder base layer. A first bushing ring is welded to one side of the composite plate cylinder composite layer, a second bushing ring is welded to one side of the composite plate cylinder composite layer, threaded holes are formed in the outer wall of the first bushing ring and the outer wall of the second bushing ring, and the two threaded holes are spliced to form a screw hole. After the lining ring made of the carbon steel, the lining ring made of the titanium material and the barrel section made of the composite plate are adopted, materials and manufacturing cost are fundamentally saved, damage to flange base metal is avoided, the operation is simple and efficient, damage to the flange base metal is avoided, especially for equipment with large diameter, the cost is effectively saved, and the service life of the flange is prolonged. And the manufacturing quality and the processing progress of the equipment are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment flanges, in particular to a novel titanium flange connection structure. Background Art

[0002] Flange, also known as flange flange or flange. Flange is a part that connects shafts to each other and is used to connect pipe ends. Flanges are also used on equipment inlets and outlets to connect two devices, such as reducer flanges. Flange connection or flange joint refers to a detachable connection composed of a flange, gasket and bolts as a combined sealing structure. Pipe flange refers to the flange used for piping in pipeline installations. When used on equipment, it refers to the inlet and outlet flanges of the equipment.

[0003] Due to the nature of titanium materials, titanium can only be welded with titanium and cannot be welded with other materials, so surfacing structure cannot be used. If the equipment flange is made of pure titanium, the cost is very high and the processing of pure titanium flanges is difficult. Utility Model Content

[0004] The purpose of the utility model is to provide a novel titanium flange connection structure, which has the characteristics of saving material and manufacturing costs, avoiding damage to the flange mother material, and being simple and efficient to operate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new titanium flange connection structure, including a flange body and a composite plate cylinder base layer, the top of the composite plate cylinder base layer is fixedly connected to the composite plate cylinder cladding, a first lining ring is welded on one side of the composite plate cylinder base layer, and a second lining ring is welded on one side of the composite plate cylinder cladding, the outer walls of the first lining ring and the second lining ring are both provided with threaded holes, the two threaded holes are spliced ​​together to form a screw hole, and the first lining ring and the second lining ring are connected by matching threads of a countersunk screw and a screw hole.

[0006] In order to facilitate closure by argon arc welding, a new titanium flange connection structure is preferably used in the present invention, wherein the height difference between the upper end surface of the countersunk screw and the upper end surface of the second liner ring forms a groove, and a welding groove is provided on the upper end surface of the countersunk screw.

[0007] In order to save materials and manufacturing costs, as a preferred new titanium flange connection structure of the present invention, the flange body and the first liner ring are both made of carbon steel, and the second liner ring and the countersunk screw are both made of titanium metal.

[0008] In order to improve the connection strength between the first liner ring and the second liner ring, as a preferred novel titanium flange connection structure of the present invention, the connection between the first liner ring and the second liner ring is welded by silver brazing.

[0009] In order to ensure the flatness and sealing of the screw hole, as a preferred novel titanium flange connection structure of the present invention, the groove and the inside of the welding groove are sealed by argon arc welding.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] The titanium flange connection structure changes the original connection structure of titanium-lined flange and pure titanium cylinder to carbon steel lining ring, titanium lining ring and composite plate cylinder, which fundamentally saves material and manufacturing costs, avoids damage to the flange base material, and is simple and efficient to operate, especially for equipment with large diameter, effectively saving costs and ensuring the manufacturing quality and processing progress of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall cross-sectional structural diagram of the utility model;

[0013] Figure 2 This is an enlarged structural diagram of part a of the utility model.

[0014] In the figure: 1. Flange body; 2. Composite plate cylinder base layer; 3. Composite plate cylinder cladding; 4. First lining ring; 5. Second lining ring; 6. Screw hole; 7. Countersunk screw; 8. Welding groove. DETAILED DESCRIPTION

[0015] See also Figures 1 to 2 A new type of titanium flange connection structure includes a flange body 1 and a composite plate cylinder base layer 2. The top of the composite plate cylinder base layer 2 is fixedly connected to the composite plate cylinder cladding 3. A first lining ring 4 is welded on one side of the composite plate cylinder base layer 2. A second lining ring 5 is welded on one side of the composite plate cylinder cladding 3. The outer walls of the first lining ring 4 and the second lining ring 5 are both provided with threaded holes. The two threaded holes are spliced ​​together to form a screw hole 6. The first lining ring 4 and the second lining ring 5 are connected by matching threads of a countersunk screw 7 and the screw hole 6.

[0016] In this embodiment: the titanium flange connection structure first welds the composite plate cylinder base layer 2 and the first liner ring 4 made of carbon steel, and after welding, welds the second liner ring 5 made of titanium metal and the composite plate cylinder cladding 3; then the connecting outer edges of the first liner ring 4 made of carbon steel and the second liner ring 5 made of titanium metal are welded by silver brazing; finally, the countersunk screw 7 made of titanium metal is installed in the screw hole 6 and sealed with argon arc welding, and finally the sealing surface is machined according to the drawing to ensure the flatness of the sealing surface and finally reach the roughness required by the drawing to ensure the safe use of the equipment.

[0017] As a technical optimization solution of the present invention, the height difference between the upper end surface of the countersunk screw 7 and the upper end surface of the second liner ring 5 forms a groove, and the upper end surface of the countersunk screw 7 is provided with a welding groove 8.

[0018] In this embodiment: the height difference between the upper end surface of the countersunk screw 7 and the upper end surface of the second liner ring 5 forms a groove, and the groove and the welding groove 8 cooperate to facilitate sealing by argon arc welding. Finally, the sealing surface is machined according to the drawing to ensure the flatness of the sealing surface and finally reach the roughness required by the drawing to ensure the safe use of the equipment.

[0019] As a technical optimization solution of the present invention, the flange body 1 and the first bushing 4 are both made of carbon steel, and the second bushing 5 and the countersunk screw 7 are both made of titanium.

[0020] In this embodiment, the flange body 1 and the first bushing 4 are both made of carbon steel, and the second bushing 5 and the countersunk screw 7 are both made of titanium, which can effectively save costs and ensure welding strength.

[0021] As a technical optimization solution of the present invention, the connection between the first liner ring 4 and the second liner ring 5 is welded by silver brazing.

[0022] In this embodiment, the connection between the first backing ring 4 and the second backing ring 5 is welded by silver brazing to improve the connection strength between the first backing ring 4 and the second backing ring 5.

[0023] As a technical optimization solution of the present invention, the groove and the interior of the welding groove 8 are sealed by argon arc welding.

[0024] In this embodiment, the groove and the interior of the welding groove 8 are sealed by argon arc welding to improve sealing and flatness.

[0025] Working principle: The titanium flange connection structure first welds the composite plate cylinder base layer 2 and the first carbon steel liner ring 4. After welding, the second titanium liner ring 5 and the composite plate cylinder cladding 3 are welded; the outer edges of the first carbon steel liner ring 4 and the second titanium liner ring 5 are then silver brazed; finally, the titanium countersunk screw 7 is installed in the screw hole 6 and sealed with argon arc welding. Finally, the sealing surface is machined according to the drawing to ensure the flatness of the sealing surface and finally reach the roughness required by the drawing to ensure the safe use of the equipment.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel titanium flange connection structure, comprising a flange body (1) and a composite plate cylinder base (2), characterized in that: The top of the composite plate cylinder base (2) is fixedly connected to the composite plate cylinder cladding (3), a first lining ring (4) is welded to one side of the composite plate cylinder base (2), and a second lining ring (5) is welded to one side of the composite plate cylinder cladding (3), the outer walls of the first lining ring (4) and the second lining ring (5) are both provided with threaded holes, the two threaded holes are spliced ​​together to form a screw hole (6), and the first lining ring (4) and the second lining ring (5) are connected by means of a countersunk screw (7) and a matching threaded connection with the screw hole (6).

2. A novel titanium flange connection structure according to claim 1, characterized in that: A height difference between the upper end surface of the countersunk screw (7) and the upper end surface of the second liner ring (5) forms a groove, and a welding groove (8) is provided on the upper end surface of the countersunk screw (7).

3. The novel titanium flange connection structure according to claim 1 is characterized in that: The flange body (1) and the first liner ring (4) are both made of carbon steel, and the second liner ring (5) and the countersunk screw (7) are both made of titanium.

4. The novel titanium flange connection structure according to claim 1 is characterized in that: The connection between the first lining ring (4) and the second lining ring (5) is welded by silver brazing.

5. The novel titanium flange connection structure according to claim 2 is characterized in that: The groove and the interior of the welding groove (8) are sealed by argon arc welding.

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