Fireproof isolation structure for flange connection

Abstract

The utility model discloses a fireproof isolation structure for flange connection, which belongs to the technical field of flanges and comprises an upper flange, a lower flange is mounted below the upper flange, fixing holes are formed in the upper flange and the lower flange, bolts are mounted in the fixing holes, fireproof connecting devices are clamped in the upper flange and the lower flange, and the fireproof connecting devices are connected with the upper flange and the lower flange. The two sides of the upper flange and the two sides of the lower flange are each connected with a fixing device. According to the fireproof isolation structure for flange connection, the first connecting plate, the limiting rods, the geothermal connecting plate and the limiting holes are arranged, the limiting rods are inserted into the limiting holes, at the moment, fixing holes in the upper flange correspond to fixing holes in the lower flange in position, bolts can be installed, and the situation that the positions of the two flanges need to be continuously adjusted in the actual installation process is avoided; the problems that in the installation process, if a sealing gasket needs to be installed, installation is more complex, and time is consumed are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flanges, in particular to a fireproof isolation structure for flange connection. Background Art

[0002] Flange connection is a detachable joint that fixes two pipes, pipe fittings or equipment on a flange plate respectively, then adds a flange gasket between the two flange plates, and finally tightens the two flange plates with bolts to make them tightly combined. It can realize the connection between a stationary pipe and a rotating or reciprocating equipment.

[0003] When making flange connections, it is usually necessary to place a gasket or fireproof pad between the two flanges to ensure the sealing and safety of the connection. However, in the actual installation process, it is necessary to constantly adjust the positions of the two flanges so that multiple bolt holes are correctly aligned so that installation can be carried out. In this process, if a gasket is also installed, it will be more complicated and time-consuming. Utility Model Content

[0004] In order to overcome the above-mentioned defects, the utility model provides a fireproof isolation structure for flange connection, which solves the problem that during the actual installation process, the positions of the two flanges need to be constantly adjusted so that multiple bolt holes are correctly aligned so that installation can be carried out. In this process, if a sealing gasket is also required to be installed, it will be more complicated and time-consuming.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fireproof isolation structure for flange connection, comprising an upper flange, a lower flange is installed under the upper flange, fixing holes are provided in the upper flange and the lower flange, bolts are installed in the fixing holes, fireproof connecting devices are clamped in the upper flange and the lower flange, fixing devices are connected to both sides of the upper flange and the lower flange, the fireproof connecting device comprises a fireproof gasket, a sealing gasket is connected under the fireproof gasket, a plurality of connecting holes are provided in the fireproof gasket and the sealing gasket, and positioning rings are connected in the connecting holes.

[0006] As a further solution of the utility model: the fireproof gasket is overlapped under the upper flange, and the sealing gasket is overlapped on the lower flange.

[0007] As a further solution of the utility model: the connection hole corresponds to the position of the fixing hole, and the positioning ring is clamped in the fixing hole.

[0008] As a further solution of the utility model: the fixing device includes a first connecting plate, the first connecting plate is connected to one side of the upper flange, and a limiting rod is connected inside the first connecting plate.

[0009] As a further solution of the utility model: a second connecting plate is slidably connected below the limiting rod, and the second connecting plate is connected to one side of the lower flange.

[0010] As a further solution of the utility model: a limiting hole is provided in the second connecting plate, and the limiting rod is slidably connected in the limiting hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The fireproof isolation structure for flange connection is provided with a first connecting plate, a limiting rod, a geothermal connecting plate and a limiting hole. When the upper flange and the lower flange need to be installed, the limiting rods on both sides of the upper flange are aligned with the positions of the limiting holes in the lower flange. At this time, the upper flange is pressed and the limiting rods are inserted into the limiting holes. At this time, the positions of the fixing holes in the upper flange and the lower flange correspond. At this time, the bolts can be installed, avoiding the need to constantly adjust the positions of the two flanges during the actual installation process so that multiple bolt holes are correctly aligned for installation. In this process, if a sealing gasket is also installed, it will be more complicated and time-consuming.

[0013] 2. The fireproof isolation structure for flange connection is provided with fireproof gaskets, sealing gaskets, connecting holes and positioning rings. Before installation, the sealing gaskets and fireproof gaskets need to be placed on the lower flange, and then the fireproof gaskets are rotated. The fireproof gaskets and sealing gaskets drive the positioning rings to rotate through the connecting holes. When the positioning rings are inserted into the fixing holes of the lower flange, the fireproof gaskets and sealing gaskets are positioned, making the positioning more accurate and the installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure in which the upper flange and the lower flange are separated from each other in the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the fireproof connection device of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the fixing device of the utility model;

[0018] In the figure: 1. upper flange; 2. lower flange; 3. bolt; 4. fixing hole; 5. fireproof connecting device; 51. fireproof gasket; 52. sealing gasket; 53. connecting hole; 54. positioning ring; 6. fixing device; 61. first connecting plate; 62. limiting rod; 63. second connecting plate; 64. limiting hole. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] like Figure 1-4 As shown, the utility model provides a technical solution: a fireproof isolation structure for flange connection, comprising an upper flange 1, a lower flange 2 is installed under the upper flange 1, fixing holes 4 are provided in the upper flange 1 and the lower flange 2, bolts 3 are installed in the fixing holes 4, fireproof connecting devices 5 are clamped in the upper flange 1 and the lower flange 2, and fixing devices 6 are connected to both sides of the upper flange 1 and the lower flange 2, and the fixing device 6 comprises a first connecting plate 61, the first connecting plate 61 is connected to one side of the upper flange 1, a limiting rod 62 is connected in the first connecting plate 61, a second connecting plate 63 is slidably connected under the limiting rod 62, the second connecting plate 63 is connected to one side of the lower flange 2, and a limiting hole 64 is provided in the second connecting plate 63, by setting the limiting rod 62 and the limiting hole 64, the limiting rod 62 cooperates with the limiting hole 64, so that the limiting hole 64 limits the limiting rod 62, and avoids the limiting rod 62 from being separated;

[0021] The limiting rod 62 is slidably connected in the limiting hole 64. The fireproof connection device 5 includes a fireproof gasket 51, and a sealing gasket 52 is connected under the fireproof gasket 51. By setting the sealing gasket 52 and the fireproof gasket 51, the combined application of the sealing gasket 52 and the fireproof gasket 51 effectively ensures that there will be no leakage between the upper flange 1 and the lower flange 2. At the same time, the fireproof gasket 51 also has a flame retardant function, providing fire safety protection for the flange connection;

[0022] The fireproof gasket 51 is overlapped under the upper flange 1, and the sealing gasket 52 is overlapped on the lower flange 2. A plurality of connecting holes 53 are provided in the fireproof gasket 51 and the sealing gasket 52. The connecting holes 53 correspond to the positions of the fixing holes 4. The positioning ring 54 is clamped in the fixing hole 4. The connecting hole 53 is connected with the positioning ring 54. By setting the positioning ring 54 and the fixing hole 4, the positioning ring 54 cooperates with the fixing hole 4, so that the positioning ring 54 can be clamped in the fixing hole 4, so that the positioning ring 54 will not fall off the fixing hole 4.

[0023] The working principle of the utility model is:

[0024] When the upper flange 1 and the lower flange 2 need to be installed, the limit rods 62 on both sides of the upper flange 1 are aligned with the limit holes 64 in the lower flange 2. The upper flange 1 is pressed and the limit rods 62 are inserted into the limit holes 64. The upper flange 1 corresponds to the fixing holes 4 in the lower flange 2. The bolts 3 can be installed. Before installation, the sealing gasket 52 and the fireproof gasket 51 need to be placed on top of the lower flange 2. The fireproof gasket 51 is then rotated. The fireproof gasket 51 and the sealing gasket 52 drive the positioning ring 54 to rotate through the connecting hole 53. The positioning ring 54 is then inserted into the fixing hole 4 of the lower flange 2. The rapid positioning between the upper flange 1 and the lower flange 2 is now completed.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "sliding connection" and "hinge" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A fireproof isolation structure for flange connection, comprising an upper flange (1), characterized in that: A lower flange (2) is installed under the upper flange (1), and fixing holes (4) are provided in the upper flange (1) and the lower flange (2), and bolts (3) are installed in the fixing holes (4). Fireproof connecting devices (5) are clamped in the upper flange (1) and the lower flange (2), and fixing devices (6) are connected to both sides of the upper flange (1) and the lower flange (2). The fireproof connecting device (5) includes a fireproof gasket (51), and a sealing gasket (52) is connected under the fireproof gasket (51). A plurality of connecting holes (53) are provided in the fireproof gasket (51) and the sealing gasket (52), and a positioning ring (54) is connected in the connecting hole (53).

2. A fireproof isolation structure for flange connection according to claim 1, characterized in that: The fireproof gasket (51) is overlapped under the upper flange (1), and the sealing gasket (52) is overlapped on the lower flange (2).

3. A fireproof isolation structure for flange connection according to claim 1, characterized in that: The connection hole (53) corresponds to the position of the fixing hole (4), and the positioning ring (54) is clamped in the fixing hole (4).

4. A fireproof isolation structure for flange connection according to claim 1, characterized in that: The fixing device (6) comprises a first connecting plate (61), the first connecting plate (61) being connected to one side of the upper flange (1), and a limiting rod (62) being connected inside the first connecting plate (61).

5. A fireproof isolation structure for flange connection according to claim 4, characterized in that: The limiting rod (62) is slidably connected to a second connecting plate (63) below, and the second connecting plate (63) is connected to one side of the lower flange (2).

6. A fireproof isolation structure for flange connection according to claim 5, characterized in that: A limiting hole (64) is provided in the second connecting plate (63), and the limiting rod (62) is slidably connected in the limiting hole (64).

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