Anti-corrosion high-pressure flange

Abstract

The utility model relates to the technical field of flanges, in particular to an anti-corrosion high-pressure flange, which realizes thickness superposition, simultaneously improves reliability of connection and sealing, is convenient to meet use in a high-pressure state, improves corrosion resistance and improves assembling and debugging efficiency. Comprising a first flange plate and a first cylinder, and the first cylinder communicates with the first flange plate; the anti-explosion device further comprises a quick-mounting assembly, an anti-explosion device, a second flange plate and a second barrel, the second barrel is arranged on the second flange plate in a communicating mode, the diameter of the second barrel is smaller than that of the first barrel, the second barrel is inserted into the first barrel, the anti-explosion device is arranged outside the first barrel, and the anti-explosion device is used for strengthening the first barrel and the second barrel. The quick assembly is arranged between the second flange plate and the first flange plate and used for fixing the second flange plate and the first flange plate, and corrosion-resistant layers are arranged on the inner side walls of the first barrel and the second barrel.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flange, in particular to a kind of anticorrosive high-pressure flange. BACKGROUND

[0002] High-pressure flange is widely used in petroleum, chemical industry, electric power, natural gas and many other fields as the key component in industrial pipeline connection system, and its reliable connection performance is crucial to prevent leakage and ensure energy supply safety.

[0003] At present, in the existing flange, such as the patent with the authorization announcement No.CN213871576U, the utility model discloses a high-pressure self-tight flange for pipeline, relates to the technical field of flange, to solve the problem that the stability of the existing high-pressure self-tight flange for pipeline is poor due to poor sealing performance.The first flange disc is arranged on the flange body, the second flange disc is arranged below the first flange disc, the connecting part is arranged between the second flange disc and the first flange disc, the first connecting head is fixedly arranged above the first flange disc, the second connecting head is fixedly arranged below the second flange disc, the circular grooves are fixedly arranged in the first flange disc, and the circular grooves are arranged in four, the screw holes are fixedly arranged below the four circular grooves and in the second flange disc.

[0004] But the flange is found in use, the first flange and the second flange are connected and sealed by connecting part, and the reliability is poor, which reduces the safety under high pressure. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of anticorrosive high-pressure flange, which realizes thickness superposition, improves the reliability of connection sealing, is convenient for satisfying the use under high pressure, improves corrosion resistance and improves assembly debugging efficiency.

[0006] The utility model discloses a kind of corrosion-resistant high-pressure flanges, including first flange and first cylinder, first cylinder is connected and is arranged on first flange;It further includes quick-mounting assembly, explosion-proof device, second flange and second cylinder, second cylinder is connected and is arranged on second flange, and the diameter of second cylinder is less than the diameter of first cylinder, second cylinder is inserted into first cylinder inside, explosion-proof device is arranged on the outside of first cylinder, and explosion-proof device is used to reinforce processing to first cylinder and second cylinder, quick-mounting assembly is arranged between second flange and first flange, and quick-mounting assembly is used to fix between second flange and first flange, and first cylinder and second cylinder inside wall are provided with corrosion-resistant layer;By inserting second cylinder into first cylinder inside, the thickness between first cylinder and second cylinder is overlapped, the reliability of connection sealing is improved, it is convenient to meet the use under high pressure, by setting corrosion-resistant layer on the inner wall of second cylinder and first cylinder, the corrosion resistance of flange is improved, the high-pressure use safety of flange is further improved by reinforcing the outside of first cylinder through explosion-proof device, the efficiency of flange assembly debugging is improved by fixing between second flange and first flange through quick-mounting assembly.

[0007] Preferably, the quick-mounting assembly includes a fixing device, multiple connecting rods, multiple square blocks, multiple support pads, multiple handwheels, and multiple sets of sleeves. The multiple connecting rods are rotatably and slidably mounted on the second flange. The first flange is provided with rectangular holes corresponding to the positions of the multiple connecting rods. The multiple square blocks are fixedly mounted on the front ends of the multiple connecting rods, respectively. The multiple support pads are mounted on the outer sidewall of the first flange around the rectangular holes. The multiple handwheels are mounted on the rear ends of the multiple connecting rods, respectively. The multiple sets of sleeves are mounted on the outer sidewall of the second flange and wrapped around the multiple connecting rods. The fixing device is used to fix the first flange and the second flange. When the first cylinder and the second cylinder are assembled, the multiple connecting rods are slid forward, so that the multiple connecting rods drive the multiple square blocks to pass through the rectangular holes on the first flange. Then, the multiple handwheels are grabbed to rotate the multiple connecting rods, so that the multiple connecting rods drive the multiple square blocks to rotate and adjust the orientation. At the same time, the multiple support pads support the multiple square blocks, so that the connecting rods and the square blocks cooperate to tighten the second flange and the first flange. At this time, the square blocks and the rectangular holes are cross-shaped, realizing the quick pre-assembly, positioning, and debugging between the first flange and the second flange. Then, the fixing device is used to firmly connect the first flange and the second flange, improving the convenience and reliability of the flange connection operation.

[0008] Preferably, the explosion-proof device comprises two sets of arc-shaped members, a hinge, a connecting member and a first bolt, the two sets of arc-shaped members are rotatably connected through the hinge, the two sets of arc-shaped members are sleeved outside the first cylinder, the two sets of connecting members are respectively installed at the top ends of the two sets of arc-shaped members, and the two sets of connecting members are fixed through the first bolt; when the second cylinder is inserted into the first cylinder, the two sets of arc-shaped members are wrapped outside the first cylinder and fastened through the first bolt, so that the reinforcing effect of the first cylinder is improved, and the explosion-proof safety of the flange is improved.

[0009] Preferably, the fixing device comprises a plurality of second bolts, and the plurality of second bolts are installed between the first flange plate and the second flange plate; the reliability of the connection and fixation is improved by connecting the first flange plate and the second flange plate through the second bolts.

[0010] Preferably, a plurality of gaskets are further arranged on the outer sidewalls of the first flange plate and the second flange plate; the abrasion between the second bolts and the first flange plate and the second flange plate is reduced, and the protection effect is improved.

[0011] Preferably, a first sealing ring and a second sealing ring are further arranged, the first sealing ring is arranged on the inner sidewall of the first cylinder, and the second sealing ring is arranged on the outer sidewall of the second cylinder; when the second cylinder is inserted into the first cylinder, the first sealing ring is in contact with the end portion of the second cylinder, and the second sealing ring is in contact with the end portion of the first cylinder, so that the connection sealing property between the first cylinder and the second cylinder is improved.

[0012] Preferably, a plurality of anti-skid members are further arranged on the plurality of hand wheels; the anti-skid effect of the plurality of hand wheels during rotation is improved, and the operation convenience is improved.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the second cylinder is inserted into the first cylinder, the thickness of the first cylinder and the second cylinder is superposed, the reliability of the connection sealing is improved, the use under high pressure is facilitated, the corrosion resistance of the flange is improved by arranging the corrosion-resistant layer on the inner walls of the second cylinder and the first cylinder, the high-pressure use safety of the flange is further improved by reinforcing the outside of the first cylinder through the explosion-proof device, and the efficiency of flange assembly and debugging is improved by fixing the second flange plate and the first flange plate through the quick-mounting assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the axonometric structure schematic view of the utility model;

[0015] Figure 2 is the axonometric local structure schematic view of the connection between the second flange plate and the second cylinder;

[0016] Figure 3 is the axonometric local structure schematic view of the connection between the arc-shaped member and the hinge;

[0017] Figure 4 Figure 3 is a schematic view of an axial measurement local structure of a connecting piece and a first bolt, etc.

[0018] Figure 5 Figure 4 is a schematic view of an axial structure of a hand wheel and an anti-skid piece, etc.

[0019] Figure 6 Figure 5 is a schematic view of an axial measurement local structure of a first flange plate and a first cylinder, etc.

[0020] In the drawings, 1 is a first flange plate, 2 is a first cylinder, 3 is a second flange plate, 4 is a second cylinder, 5 is a connecting rod, 6 is a square block, 7 is a supporting cushion block, 8 is a hand wheel, 9 is a sleeve, 10 is an arc-shaped piece, 11 is a hinge, 12 is a connecting piece, 13 is a first bolt, 14 is a second bolt, 15 is a gasket, 16 is a first sealing ring, 17 is a second sealing ring, and 18 is an anti-skid piece. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0022] Embodiment 1

[0023] As shown in Figures 1 to 6 the present application, a kind of anticorrosion high-pressure flange, including first flange plate 1 and first cylinder 2, first cylinder 2 is communicated and is set on first flange plate 1;It further includes quick-mounting assembly, explosion-proof device, second flange plate 3 and second cylinder 4, second cylinder 4 is communicated and is set on second flange plate 3, and the diameter of second cylinder 4 is less than the diameter of first cylinder 2, second cylinder 4 is inserted into first cylinder 2 interior, first cylinder 2 outside is provided with explosion-proof device, explosion-proof device is used to strengthen the processing of first cylinder 2 and second cylinder 4, quick-mounting assembly is arranged between second flange plate 3 and first flange plate 1, quick-mounting assembly is used to fix between second flange plate 3 and first flange plate 1, and first cylinder 2 and second cylinder 4 inner side wall are provided with corrosion-resistant layer;

[0024] As shown in Figure 1As shown, the quick assembly component includes a fixing device, a plurality of connecting rods 5, a plurality of square blocks 6, a plurality of support pads 7, a plurality of hand wheels 8 and a plurality of kits 9, the plurality of connecting rods 5 are rotatably and slidably installed on the second flange plate 3, the first flange plate 1 is provided with a plurality of rectangular holes corresponding to the positions of the plurality of connecting rods 5, the plurality of square blocks 6 are fixedly installed at the front ends of the plurality of connecting rods 5 respectively, the plurality of support pads 7 are installed on the outer side walls of the first flange plate 1 around the square holes, the plurality of hand wheels 8 are installed at the rear ends of the plurality of connecting rods 5 respectively, and the plurality of kits 9 are installed on the outer side walls of the second flange plate 3 and are sleeved on the outer portions of the plurality of connecting rods 5, and the fixing device is used for fixing the first flange plate 1 and the second flange plate 3;

[0025] In the embodiment, the thickness of the first cylinder 2 and the second cylinder 4 is overlapped by inserting the second cylinder 4 into the first cylinder 2, the reliability of the connection and sealing is improved, the use under high pressure is facilitated, the corrosion resistance of the flange is improved by arranging a corrosion-resistant layer on the inner walls of the second cylinder 4 and the first cylinder 2, the safety of the flange under high pressure is further improved by reinforcing the outside of the first cylinder 2 through the explosion-proof device, and the efficiency of the flange assembly and debugging is improved by fixing the second flange plate 3 and the first flange plate 1 through the quick assembly component.

[0026] Embodiment 2

[0027] Based on the embodiment 1, as shown in the figure, Figure 3 The utility model discloses an anticorrosive high pressure flange, the explosion -proof device includes arc -shaped piece 10, hinge 11, connecting piece 12 and first bolt 13, two sets of arc -shaped piece 10 bottom are connected through hinge 11 rotation, two sets of arc -shaped piece 10 are sleeved in the first cylinder 2 outside, two sets of connecting piece 12 are installed at two sets of arc -shaped piece 10 top respectively, and two sets of connecting piece 12 are fixed through first bolt 13 between two sets of connecting piece 12;

[0028] As shown in the figure, Figure 1 The fixing device includes a plurality of second bolts 14, and the plurality of second bolts 14 are installed between the first flange plate 1 and the second flange plate 3.

[0029] As shown in the figure, Figure 6 It also includes a plurality of gaskets 15, and the plurality of gaskets 15 are arranged on the outer side walls of the first flange plate 1 and the second flange plate 3 respectively.

[0030] As shown in the figure, Figure 2 It also includes a first sealing ring 16 and a second sealing ring 17, the first sealing ring 16 is arranged on the inner side wall of the first cylinder 2, and the second sealing ring 17 is arranged on the outer side wall of the second cylinder 4.

[0031] As shown in the figure, Figure 5 It also includes a plurality of anti-skid devices 18, and the plurality of anti-skid devices 18 are arranged on the plurality of hand wheels 8.

[0032] In the embodiment, when the first cylinder 2 and the second cylinder 4 are assembled, the plurality of connecting rods 5 are slid forward, the plurality of connecting rods 5 drive the plurality of square blocks 6 to pass through the rectangular holes on the first flange plate 1, then the plurality of hand wheels 8 are grabbed to rotate the plurality of connecting rods 5, the plurality of connecting rods 5 drive the plurality of square blocks 6 to rotate and adjust the direction, meanwhile the plurality of square blocks 6 are supported by the plurality of supporting pads 7, so that the connecting rods 5 and the square blocks 6 cooperate to pull the second flange plate 3 and the first flange plate 1, at this time, the square blocks 6 and the rectangular holes are cross, the first flange plate 1 and the second flange plate 3 are quickly pre-assembled, positioned and debugged, then the first flange plate 1 and the second flange plate 3 are connected firmly by the fixing device, the convenience and reliability of the flange connection operation are improved, when the second cylinder 4 is inserted into the first cylinder 2, the two arc-shaped members 10 are wrapped outside the first cylinder 2 and fastened by the first bolts 13, so that the reinforcing effect of the first cylinder 2 is improved, and the explosion-proof safety of the flange is improved.

[0033] The anti-corrosion high-pressure flange of the utility model, when working, through the second cylinder 4 is inserted into the first cylinder 2, realize the thickness of the first cylinder 2 and the second cylinder 4 between superposition, through the explosion -proof device to the first cylinder 2 outside reinforcing, through the quick -witted component between the second flange plate 3 and the first flange plate 1 fixed.

[0034] The above only is the preferred implementation mode of the utility model, it should be pointed out, for ordinary technical personnel in the prior art, on the premise of not departing from the technical principle of the utility model, can also make a number of improvements and variations, these improvements and variations also should be regarded as the protection range of the utility model.

Claims

1. A corrosion-resistant high-pressure flange, comprising a first flange (1) and a first cylindrical body (2), wherein the first cylindrical body (2) is connected to the first flange (1); characterized in that, It also includes a quick-installation assembly, an explosion-proof device, a second flange (3) and a second cylinder (4). The second cylinder (4) is connected to the second flange (3), and the diameter of the second cylinder (4) is smaller than the diameter of the first cylinder (2). The second cylinder (4) is inserted into the first cylinder (2). An explosion-proof device is provided on the outside of the first cylinder (2). The explosion-proof device is used to strengthen the first cylinder (2) and the second cylinder (4). The quick-installation assembly is provided between the second flange (3) and the first flange (1). The quick-installation assembly is used to fix the second flange (3) and the first flange (1). The inner walls of the first cylinder (2) and the second cylinder (4) are provided with a corrosion-resistant layer.

2. The anti-corrosion high-pressure flange as described in claim 1, characterized in that, The quick-assembly assembly includes a fixing device, multiple sets of connecting rods (5), multiple sets of square blocks (6), multiple sets of support pads (7), multiple sets of handwheels (8), and multiple sets of kits (9). The multiple sets of connecting rods (5) are rotatably and slidably mounted on the second flange (3). The first flange (1) is provided with rectangular holes corresponding to the positions of the multiple sets of connecting rods (5). The multiple sets of square blocks (6) are respectively fixedly mounted on the front end of the multiple sets of connecting rods (5). The multiple sets of support pads (7) are all mounted on the outer side wall of the first flange (1) around the square holes. The multiple sets of handwheels (8) are respectively mounted on the rear end of the multiple sets of connecting rods (5). The multiple sets of kits (9) are mounted on the outer side wall of the second flange (3) and fitted onto the outside of the multiple sets of connecting rods (5). The fixing device is used to fix the first flange (1) and the second flange (3).

3. The anti-corrosion high-pressure flange as described in claim 1, characterized in that, The explosion-proof device includes an arc-shaped component (10), a hinge (11), a connector (12), and a first bolt (13). The bottoms of the two sets of arc-shaped components (10) are rotatably connected by the hinge (11). The two sets of arc-shaped components (10) are fitted onto the outside of the first cylinder (2). The two sets of connectors (12) are respectively installed on the tops of the two sets of arc-shaped components (10). The two sets of connectors (12) are fixed together by the first bolt (13).

4. The anti-corrosion high-pressure flange as described in claim 2, characterized in that, The fixing device includes multiple sets of second bolts (14), which are installed between the first flange (1) and the second flange (3).

5. The anti-corrosion high-pressure flange as described in claim 1, characterized in that, It also includes multiple sets of gaskets (15), which are respectively disposed on the outer side walls of the first flange (1) and the second flange (3).

6. The anti-corrosion high-pressure flange as described in claim 1, characterized in that, It also includes a first sealing ring (16) and a second sealing ring (17), the first sealing ring (16) being disposed on the inner side wall of the first cylinder (2), and the second sealing ring (17) being disposed on the outer side wall of the second cylinder (4).

7. A corrosion-resistant high-pressure flange as described in claim 2, characterized in that, It also includes multiple sets of anti-slip components (18), which are set on multiple sets of handwheels (8).

Images