Flange forge piece with multiple seals

Abstract

The utility model relates to the technical field of flange forgings, and discloses a flange forge piece with multiple seals, which comprises a first flange forge piece, the inner surface of the first flange forge piece is fixedly connected with a first flange forge piece convex groove, and the inner surface of the first flange forge piece convex groove is tightly attached to a second flange forge piece sinking groove. A second flange forge piece convex edge is fixedly connected to the inner surface of the second flange forge piece sinking groove, a second flange forge piece convex edge sealing ring is tightly attached to the side surface of the second flange forge piece convex edge, and a first flange forge piece is tightly attached to the side surface of the second flange forge piece convex edge sealing ring. The inner surface of the convex edge of the flange forge piece II is fixedly connected with the flange forge piece II; the first fixing bolt, the second fixing bolt, the third fixing bolt and the fourth fixing bolt are each internally provided with a fixing bolt groove. Through cooperative use of the components, the flange forge piece with multiple seals can be tightly connected in the use process and has certain effects of resisting external force and expanding with heat and contracting with cold.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange forging technical field especially relates to a kind of multiple sealing flange forgings. BACKGROUND

[0002] Multiple sealing flange forging, mainly in the key role in industrial pipeline connection. It is through multiple sealing structure, greatly improve sealing performance, can effectively prevent medium leakage, whether gas or liquid, can ensure the tightness of pipeline system. Compared with ordinary flange, its reliability is higher, can reduce the security risk and economic loss caused by leakage. At the same time, forging process endows it with high strength and good corrosion resistance, can adapt to high temperature, high pressure and strong corrosion and other harsh working conditions, guarantee the long-term stable operation of pipeline, widely used in petrochemical, electric power, metallurgy and many other industries with extremely high requirements for sealing and reliability.

[0003] The existing multiple sealing flange forging, including two flange pieces, two flange pieces are equidistantly connected by bolts, one side wall of one of the flange pieces is provided with a recess, a first sealing ring is fixed in the recess, a sealing ring adapted to the first sealing ring is fixed on one side wall of the other flange piece, and the sealing ring is inserted into the recess and tightly contacts the first sealing ring. The utility model discloses a flange piece, a recess, a first sealing ring, a sealing ring, a second sealing ring and a sealing cylinder are arranged, and the first sealing ring and the second sealing ring are arranged in the recess and the sealing ring respectively during the use of the flange, so that the dislocation of the sealing washer can be avoided, and under the action of multiple sealing, the device can only ensure the stability of the two flat surfaces in close contact, and cannot ensure the deformation of the flange contact surface caused by external force and thermal expansion and cold shrinkage, thereby affecting the sealing property of the device and reducing the practicability of the device. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of multiple sealing flange forgings, to improve the technical problems that the existing multiple sealing flange forgings cannot effectively prevent the device from being subjected to external force and thermal expansion and cold shrinkage, resulting in sealing.

[0005] To achieve the above object, the utility model provides the following technical scheme: A kind of multiple sealing flange forging, including flange forging one, the inner surface of the flange forging one is fixedly connected with flange forging one convex slot, the inner surface of the flange forging one convex slot is closely combined with flange forging two sunken groove, the inner surface of the flange forging two sunken groove is fixedly connected with flange forging two convex edge, the side surface of the flange forging two convex edge is closely combined with flange forging two convex edge sealing ring, the side surface of the flange forging two convex edge sealing ring is closely combined with flange forging one, the inner surface of the flange forging two convex edge is fixedly connected with flange forging two.

[0006] Further, the outer surface of the flange forging one is closely combined with anticorrosive pressure-resistant rubber washer two, the outer surface of the anticorrosive pressure-resistant rubber washer two is closely combined with thickened sleeve one.

[0007] Further, the outer surface of the flange forging two is closely combined with anticorrosive pressure-resistant rubber washer one, the outer surface of the anticorrosive pressure-resistant rubber washer one is closely combined with thickened sleeve two.

[0008] Further, the inner surface of the thickened sleeve one is closely combined with thickened sleeve sealing ring, the outer surface of the thickened sleeve sealing ring is closely combined with thickened sleeve two.

[0009] Further, the inside of the thickened sleeve one and thickened sleeve two is provided with bolt fixing through hole, the inside of the thickened sleeve one is provided with thickened sleeve one counterbore, the inside of the thickened sleeve two is provided with thickened sleeve two counterbore.

[0010] Further, the inner surface of the bolt fixing through hole is combined with fixed bolt one, fixed bolt two, fixed bolt three and fixed bolt four, the outer surface of the fixed bolt one, fixed bolt two, fixed bolt three and fixed bolt four is combined with bolt washer, the inner surface of the bolt washer is closely combined with thickened sleeve two.

[0011] Further, the side surface of the fixed bolt one, fixed bolt two, fixed bolt three and fixed bolt four is combined with spring washer, the inner surface of the spring washer is closely combined with thickened sleeve one.

[0012] Further, the inside of the fixed bolt one, fixed bolt two, fixed bolt three and fixed bolt four is provided with fixed bolt groove, the outer surface of the fixed bolt one, fixed bolt two, fixed bolt three and fixed bolt four is threadedly connected with anti-skid nut one, anti-skid nut two, anti-skid nut three and anti-skid nut four, the inner surface of the anti-skid nut one, anti-skid nut two, anti-skid nut three and anti-skid nut four is closely pressed with spring washer.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, in the use process, first install the flange forging two convex edge sealing ring in the flange forging with multiple sealing flange forging convex edge outer surface, then put the flange forging two convex edge with flange forging two convex edge sealing ring into the flange forging one convex groove, make the flange forging two sink groove and flange forging one convex groove and flange forging two convex edge sealing ring and flange forging two convex edge close fit, finally pass flange forging one through thick sleeve one, pass flange forging two through thick sleeve two, place anticorrosion pressure -resistant rubber washer one, anticorrosion pressure -resistant rubber washer two, thick sleeve sealing ring on the inner surface of thick sleeve one and thick sleeve two, and through the cooperation of fixed bolt one, fixed bolt two, fixed bolt three, fixed bolt four, bolt gasket, bolt fixed through -hole, spring washer, fixed bolt groove, make flange forging one and flange forging two close compression together, further improve the practicability of the device, improve the sealing property and reliability of the device, ensure that the device meets the demand of operation.

[0015] 2. In the utility model, through the cooperation of fixed bolt groove, thick sleeve one sink hole, thick sleeve two sink hole, the sealing problem caused by the thermal expansion and cold shrinkage of the part under the limited external force and the large change of environment can be effectively prevented, so as to ensure the stability and reliability of the device, further improve the practicability of the device, meet the different needs of various use scenes. ACCURATE DRAWINGS

[0016] The utility model is further illustrated below in connection with the drawings and examples.

[0017] Figure 1 A front view of the flange forging with multiple sealing is provided for the utility model.

[0018] Figure 2 A front view of the flange forging with multiple sealing is provided for the utility model.

[0019] Figure 3 A sectional view of the flange forging with multiple sealing is provided for the utility model.

[0020] Figure 4 A top view of the flange forging with multiple sealing is provided for the utility model.

[0021] Figure 5 A bottom view of the flange forging with multiple sealing is provided for the utility model.

[0022] LEGEND:

[0023] 1, flange forging one; 2, flange forging two; 3, thick sleeve one; 4, thick sleeve two; 5, fixed bolt one; 6, fixed bolt two; 7, fixed bolt three; 8, fixed bolt four; 9, bolt gasket; 10, anti-skid nut one; 11, anti-skid nut two; 12, anti-skid nut three; 13, anti-skid nut four; 14, spring washer; 15, anti-corrosion pressure-resistant rubber washer one; 16, anti-corrosion pressure-resistant rubber washer two; 17, flange forging one convex groove; 18, flange forging two sink groove; 19, flange forging two convex edge sealing ring; 20, flange forging two convex edge; 21, thick sleeve sealing ring; 22, fixed bolt groove; 23, bolt fixing through hole; 24, thick sleeve one sink hole; 25, thick sleeve two sink hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] With reference to Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the utility model: a kind of multiple sealing flange forging, including flange forging one 1, the inner surface of flange forging one 1 is fixedly connected with flange forging one convex groove 17, the inner surface of flange forging one convex groove 17 is closely combined with flange forging two sink groove 18, the inner surface of flange forging two sink groove 18 is fixedly connected with flange forging two convex edge 20, the side surface of flange forging two convex edge 20 is closely combined with flange forging two convex edge sealing ring 19, the side surface of flange forging two convex edge sealing ring 19 is closely combined with flange forging one 1, the inner surface of flange forging two convex edge 20 is fixedly connected with flange forging two 2;The outer surface of flange forging one 1 is closely combined with anti-corrosion pressure-resistant rubber washer two 16, the outer surface of anti-corrosion pressure-resistant rubber washer two 16 is closely combined with thick sleeve one 3;The outer surface of flange forging two 2 is closely combined with anti-corrosion pressure-resistant rubber washer one 15, the outer surface of anti-corrosion pressure-resistant rubber washer one 15 is closely combined with thick sleeve two 4;The inside of thick sleeve one 3 and thick sleeve two 4 is provided with bolt fixing through hole 23, the inside of thick sleeve one 3 is provided with thick sleeve one sink hole 24, the inside of thick sleeve two 4 is provided with thick sleeve two sink hole 25;

[0026] Specifically, in use, first, the flange forging two convex edge sealing ring 19 is installed on the outer surface of the flange forging two convex edge 20 in the multiple sealing flange forging, then the flange forging two convex edge 20 with the flange forging two convex edge sealing ring 19 is put into the flange forging one convex groove 17, so that the flange forging two concave groove 18 and the flange forging one convex groove 17 and the flange forging two convex edge sealing ring 19 are tightly attached to the flange forging two convex edge 20, finally, the thick sleeve one 3 is put through the flange forging one 1, the thick sleeve two 4 is put through the flange forging two 2, the anticorrosion pressure-resistant rubber washer one 15, the anticorrosion pressure-resistant rubber washer two 16 and the thick sleeve sealing ring 21 are put on the inner surface of the thick sleeve one 3 and the thick sleeve two 4, and the flange forging one 1 and the flange forging two 2 are tightly pressed together through the cooperation of the fixed bolt one 5, the fixed bolt two 6, the fixed bolt three 7, the fixed bolt four 8, the bolt gasket 9, the bolt fixing through hole 23, the spring washer 14 and the fixed bolt groove 22, thereby improving the practicability, the sealing property and the reliability of the device, and ensuring that the device meets the operation requirements.

[0027] With reference to Figure 2 , Figure 3 and Figure 5 , the inner surface of the bolt fixing through hole 23 is attached to the fixed bolt one 5, the fixed bolt two 6, the fixed bolt three 7 and the fixed bolt four 8, the outer surface of the fixed bolt one 5, the fixed bolt two 6, the fixed bolt three 7 and the fixed bolt four 8 is attached to the bolt gasket 9, the inner surface of the bolt gasket 9 is tightly attached to the thick sleeve two 2; the side surface of the fixed bolt one 5, the fixed bolt two 6, the fixed bolt three 7 and the fixed bolt four 8 is attached to the spring washer 14, the inner surface of the spring washer 14 is tightly attached to the thick sleeve one 3; the inside of the fixed bolt one 5, the fixed bolt two 6, the fixed bolt three 7 and the fixed bolt four 8 is provided with the fixed bolt groove 22, the outer surface of the fixed bolt one 5, the fixed bolt two 6, the fixed bolt three 7 and the fixed bolt four 8 is threadedly connected to the non-slip nut one 10, the non-slip nut two 11, the non-slip nut three 12 and the non-slip nut four 13, and the inner surface of the non-slip nut one 10, the non-slip nut two 11, the non-slip nut three 12 and the non-slip nut four 13 is tightly pressed to the spring washer 14;

[0028] Specifically, when the device is used, through the cooperation of the fixed bolt groove 22, the thick sleeve one counterbore 24 and the thick sleeve two counterbore 25, the problem of sealing failure caused by thermal expansion and cold contraction of the components under limited external force and large environmental changes can be effectively prevented, thereby ensuring the stability and reliability of the device, improving the practicability of the device and meeting different requirements in various use scenarios.

[0029] Working principle: in the use process, first, the flange forging two convex edge 20 outer surface in the multiple sealing flange forging flange forging two convex edge sealing ring 19, then install the flange forging two convex edge sealing ring 19 flange forging two convex edge 20 put into the flange forging one convex groove 17 inside, so that the flange forging two sink groove 18 and flange forging one convex groove 17 and flange forging two convex edge sealing ring 19 and flange forging two convex edge 20 close fitting, finally, the thick sleeve one 3 through the flange forging one 1, thick sleeve two 4 through the flange forging two 2, and in the thick sleeve one 3 and thick sleeve two 4 inner surface of anticorrosion pressure rubber ring 15, anticorrosion pressure rubber ring 16, thick sleeve sealing ring 21, and through the cooperation of fixed bolt one 5, fixed bolt two 6, fixed bolt three 7, fixed bolt four 8, bolt gasket 9, bolt fixed through hole 23, spring washer 14, fixed bolt groove 22, the flange forging one 1 and flange forging two 2 close together, thereby improving the practicability of the device, while improving the sealing and reliability of the device, to ensure that the device meets the needs of the operation.

[0030] Secondly, when using the device, through the cooperation of fixed bolt groove 22, thick sleeve one sink hole 24, thick sleeve two sink hole 25, can effectively prevent the device from being subjected to limited external force majeure and environmental changes, and the parts thermal expansion and cold contraction caused by the sealing problem, so as to ensure the stability and reliability of the device, thereby improving the practicability of the device, meeting the different needs of various use scenarios.

[0031] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A multiple seal flange forging comprising a flange forging one (1) characterized by: The inner surface of the flange forging one (1) is fixedly connected with a flange forging one convex groove (17), the inner surface of the flange forging one convex groove (17) is closely combined with a flange forging two sunken groove (18), the inner surface of the flange forging two sunken groove (18) is fixedly connected with a flange forging two convex edge (20), the side surface of the flange forging two convex edge (20) is closely combined with a flange forging two convex edge sealing ring (19), the side surface of the flange forging two convex edge sealing ring (19) is closely combined with the flange forging one (1), the inner surface of the flange forging two convex edge (20) is fixedly connected with a flange forging two (2).

2. A multiple seal flange forging as claimed in claim 1, wherein: The outer surface of the flange forging one (1) is closely combined with a corrosion-resistant pressure-resistant rubber gasket two (16), the outer surface of the corrosion-resistant pressure-resistant rubber gasket two (16) is closely combined with a thickened sleeve one (3).

3. A multiple seal flange forging as defined in claim 1 wherein: The outer surface of the flange forging two (2) is closely combined with a corrosion-resistant pressure-resistant rubber gasket one (15), the outer surface of the corrosion-resistant pressure-resistant rubber gasket one (15) is closely combined with a thickened sleeve two (4).

4. A multiple seal flange forging as defined in claim 2 wherein: The inner surface of the thickened sleeve one (3) is closely combined with a thickened sleeve sealing ring (21), the outer surface of the thickened sleeve sealing ring (21) is closely combined with a thickened sleeve two (4).

5. A multiple seal flange forging as defined in claim 4 wherein: The inside of the thickened sleeve one (3) and the thickened sleeve two (4) is provided with a bolt fixing through hole (23), the inside of the thickened sleeve one (3) is provided with a thickened sleeve one counterbore (24), the inside of the thickened sleeve two (4) is provided with a thickened sleeve two counterbore (25).

6. A multiple seal flange forging as defined in claim 5 wherein: The inner surface of the bolt fixing through hole (23) is combined with a fixed bolt one (5), a fixed bolt two (6), a fixed bolt three (7) and a fixed bolt four (8), the outer surface of the fixed bolt one (5), the fixed bolt two (6), the fixed bolt three (7) and the fixed bolt four (8) is combined with a bolt washer (9), the inner surface of the bolt washer (9) is closely combined with the thickened sleeve two (4).

7. A multiple seal flange forging as defined in claim 6 wherein: The side surface of the fixed bolt one (5), the fixed bolt two (6), the fixed bolt three (7) and the fixed bolt four (8) is combined with a spring washer (14), the inner surface of the spring washer (14) is closely combined with the thickened sleeve one (3).

8. A multiple seal flange forging as defined in claim 7 wherein: The inside of the fixed bolt one (5), the fixed bolt two (6), the fixed bolt three (7) and the fixed bolt four (8) is provided with a fixed bolt groove (22), the outer surface of the fixed bolt one (5), the fixed bolt two (6), the fixed bolt three (7) and the fixed bolt four (8) is threadedly connected with a non-slip nut one (10), a non-slip nut two (11), a non-slip nut three (12) and a non-slip nut four (13), the inner surface of the non-slip nut one (10), the non-slip nut two (11), the non-slip nut three (12) and the non-slip nut four (13) is closely pressed with the spring washer (14).

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