Special pressure-bearing FG flange

Abstract

The invention provides a special pressure-bearing FG flange, and relates to the technical field of butt joint structures of fluid conveying pipelines, the special pressure-bearing FG flange comprises a flange sheet A, a flange sheet B, a rotating support ring, a flange inner cylinder, a conveying pipe, a clamping support ring, a clamping support cylinder and a positioning carrier ring; the rotating support ring is fixedly mounted on the outer sides of the flange sheet A and the flange sheet B through welding; the flange inner cylinder is fixedly arranged on the inner sides of the flange sheet A and the flange sheet B through welding; the conveying pipe is installed on the side face of the welding side ring in a welded mode. An assembling inner groove is formed in the clamping support ring; the clamping support cylinder is provided with a locking thread; a clamping supporting cylinder is matched with a positioning carrying ring and a fixing support to support and reinforce the butt joint position of the conveying pipe, and a flow guide inner cylinder is used for carrying out auxiliary inner supporting on butt joint of a flange piece A and a flange piece B; the problem that after pipelines on the two sides of the butt joint position are subjected to acting force, the butt joint position of a flange is prone to deformation and loosening when impacted by fluid for a long time is solved.

Description

Technical Field

[0001] The invention relates to the technical field of butt joint structures of fluid delivery pipelines, and in particular to a special pressure-bearing FG flange. Background Art

[0002] Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate respectively, add flange gaskets between the two flange plates, and fasten them together with bolts to complete the connection. Some pipe fittings and equipment already have flange plates, which also belong to flange connection. Flange connection is an important connection method for pipeline construction. Flange connection is easy to use and can withstand greater pressure. In industrial pipelines and at home, the pipeline diameter is small and the pressure is low, so flange connection cannot be seen. If you are in a boiler room or production site, you will see flange-connected pipes and equipment everywhere.

[0003] To summarize, at present, when pipelines transport fluids under a certain pressure, flanges are required for docking between pipelines. However, most flanges are only docked with a single bolt and a gasket. When the pipeline transports fluids under a certain pressure for a long time, and the pipelines on both sides of the docking are subjected to force, the flange docking is prone to deformation and loosening due to the long-term impact of the fluid, causing leakage at the pipeline docking. Summary of the invention

[0004] In view of this, the present invention provides a special pressure-bearing FG flange, which comprises a flange A, a flange B, a rotating support ring, a flange inner tube, a conveying pipe, a clamping support ring, a clamping support tube and a positioning ring, so as to solve the problem that when the pipeline conveys fluid under a certain pressure, flanges are needed for docking between pipelines, but most flanges are only docked with a single bolt and a gasket. When the pipeline conveys the fluid under a certain pressure for a long time, and the pipelines on both sides of the docking are subjected to a force, the flange docking is easily deformed and loosened when subjected to a long-term impact of the fluid, causing leakage at the pipeline docking.

[0005] The present invention provides a special pressure-bearing FG flange, which specifically comprises: a flange sheet A, a flange sheet B, a rotating support ring, a flange inner tube, a conveying pipe, a clamping support ring, a clamping support tube and a positioning carrier ring;

[0006] The side of the flange A is provided with a docking support groove; the flange B is arranged on the side of the flange A, and the side of the flange B is provided with a docking card slot; the rotating support ring is fixedly installed on the outside of the flange A and the flange B by welding; the flange inner cylinder is fixedly arranged on the inside of the flange A and the flange B by welding, a welding side ring is fixedly installed on the side of the flange inner cylinder by welding, and a diversion inner cylinder is fixedly installed on the inside of the welding side ring by welding; the conveying pipe is fixedly installed on the side of the welding side ring by welding; the inner side of the clamping support ring is provided with an assembly inner groove, and the clamping support ring is rotatably sleeved on the outside of the flange A and the flange B through the assembly inner groove in cooperation with the rotating support ring. The outer side of the clamping support ring is provided with a threaded load groove, and a support side frame is fixedly installed on the side of the clamping support ring by welding. A locking clip frame is arranged on one side of the end of the support side frame. At the same time, the support side frame and the locking clip frame are sleeved on the outside of the conveying pipe; the inner side of the clamping support cylinder is provided with a locking thread, and the clamping support cylinder is fixedly sleeved on the outside of the clamping support ring through the locking thread in cooperation with the threaded load groove; the positioning load ring is sleeved on the outside of both ends of the clamping support cylinder.

[0007] In at least some embodiments, on the outside of the flange A and the flange B, there are also provided: a docking side ring, a bearing slot, a locking opening, and a docking bolt;

[0008] The docking side ring is fixedly arranged on the sides of the flange A and the flange B by welding; the bearing slot is opened on the side of the docking side ring; the locking opening is penetrated and opened on the sides of the flange A and the flange B; the docking bolt is arranged inside the locking opening opened on the flange A and the flange B; the flange A and the flange B can be docked and positioned through the cooperation of the docking side ring and the bearing slot, and the flange A and the flange B can be initially locked through the cooperation of the locking opening and the docking bolt.

[0009] In at least some embodiments, a flange gasket is fixedly arranged inside the bearing slot; the flange A and the flange B can be docked and sealed through the flange gasket.

[0010] In at least some embodiments, on the side of the flange inner cylinder, there are also provided: a docking support ring and a docking side slot;

[0011] The docking support ring is fixedly arranged on the side of a group of flange inner cylinders by welding; the docking side slot is opened on the side of the other group of flange inner cylinders; the two groups of flange inner cylinders can be docked and limited through the cooperation of the docking support ring and the docking side slot.

[0012] In at least some embodiments, a positioning support ring is fixedly installed on the outside of the conveying pipe by welding; the two groups of conveying pipes can be assisted in fixing after welding through the positioning support ring.

[0013] In at least some embodiments, on the sides of the support side frame and the locking clip frame, there are also provided: a clamping slot and a locking side block;

[0014] The clamping slot is opened on the inner sides of the support side frame and the locking clamp frame; the locking side blocks are fixedly installed at both outer ends of the support side frame and the locking clamp frame by welding; the positioning support ring can be sleeved and locked by cooperating the clamping slot with the locking side blocks.

[0015] In at least some embodiments, an assembly support ring is fixedly installed on the outer side of the clamping support cylinder by welding; the two assembled clamping support rings can be limited and locked by the clamping support cylinder.

[0016] In at least some embodiments, the following are further provided on the side surface of the positioning carrier ring: a rotating support groove and a fixed support;

[0017] The rotating support groove is opened on the inner side of the positioning carrier ring; the fixed support is fixedly installed on the outer side of the positioning carrier ring; the butt-jointed flange A and flange B can be stably supported by cooperating the rotating support groove with the fixed support.

[0018] A special FG flange for pressure bearing provided by the present invention has the following beneficial effects

[0019] In the present invention, by providing the clamping support ring, the clamping support cylinder and the positioning carrier ring, the conveying pipes to be butted can be assembled and welded through the welding side ring. At the same time, the welding side ring cooperating with the flange inner cylinder enables the two conveying pipes to respectively fixedly carry the flange A and the flange B. The load-bearing slot can position and carry the flange gasket, enabling the flange A and the flange B to be quickly positioned and butted through the butting slot and the butting card slot. At the same time, the two flow guiding inner cylinders can be butted through the butting support ring and the butting side slot. The flange A and the flange B can be preliminarily butted and locked through the butting bolts. The support side frame cooperating with the locking clamp frame can be fixedly supported on the side surface of the conveying pipe through the positioning support ring, enabling the clamping support ring to limit and support the two conveying pipes. The clamping support cylinder synchronously locks the support of the two clamping support rings through the threaded structure, enabling the clamping support cylinder to cooperate with the positioning carrier ring and the fixed support to support and reinforce the butting part of the two conveying pipes, preventing the butting part of the conveying pipe from being subjected to additional acting forces. At the same time, the flow guiding inner cylinder guides the conveyed fluid, and the flow guiding inner cylinder can also provide auxiliary inner support for the butting of the flange A and the flange B, enabling the two conveying pipes to stably convey the fluid in a sealed manner, preventing the flange at the butting part of the conveying pipe from deforming and loosening due to acting forces such as pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0021] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0022] In the drawings:

[0023] Figure 1Shows a schematic structural diagram of the flange for butt - joint assembly of pipes according to an embodiment of the present invention;

[0024] Figure 2 Shows a schematic cross - sectional structural diagram of the flange for butt - joint assembly of pipes according to an embodiment of the present invention;

[0025] Figure 3 Shows a schematic structural diagram of the overall assembly and disassembly of flange plate A according to an embodiment of the present invention;

[0026] Figure 4 Shows a schematic structural diagram of the overall assembly and disassembly of flange plate B according to an embodiment of the present invention;

[0027] Figure 5 Shows a schematic structural diagram of the flange gasket according to an embodiment of the present invention;

[0028] Figure 6 Shows a schematic structural diagram of the overall assembly and disassembly of the flange inner cylinder according to an embodiment of the present invention;

[0029] Figure 7 Shows a schematic structural diagram of the overall assembly and disassembly of the conveying pipe according to an embodiment of the present invention;

[0030] Figure 8 Shows a schematic structural diagram of the overall assembly and disassembly of the clamping support ring according to an embodiment of the present invention;

[0031] Figure 9 Shows a schematic structural diagram of the overall assembly and disassembly of the clamping support cylinder according to an embodiment of the present invention;

[0032] Figure 10 Shows a schematic structural diagram of the overall assembly and disassembly of the positioning carrier ring according to an embodiment of the present invention.

[0033] List of reference numerals

[0034] 1. Flange plate A;

[0035] 101. Docking support groove;

[0036] 2. Flange plate B;

[0037] 201. Docking card slot;

[0038] 3. Rotating support ring;

[0039] 301. Docking side ring; 302. Bearing slot; 303. Locking opening; 304. Docking bolt;

[0040] 4. Flange gasket;

[0041] 5. Flange inner cylinder;

[0042] 501, Welding side ring; 502, Flow guide inner cylinder; 503, Docking support ring; 504, Docking side groove;

[0043] 6, Delivery pipe;

[0044] 601, Positioning support ring;

[0045] 7, Clamping support ring;

[0046] 701, Assembly inner groove; 702, Support side frame; 703, Locking clamp frame; 704, Clamping slot; 705, Locking side block; 706, Thread load groove;

[0047] 8, Clamping support cylinder;

[0048] 801, Assembly support ring; 802, Locking thread;

[0049] 9, Positioning load ring;

[0050] 901, Rotating support groove; 902, Fixed support; Detailed implementation mode

[0051] Example: Please refer to Figures 1 to 10 :

[0052] The present invention provides a special FG flange for pressure bearing, including: flange plate A1, flange plate B2, rotating support ring 3, flange inner cylinder 5, delivery pipe 6, clamping support ring 7, clamping support cylinder 8 and positioning load ring 9;

[0053] A docking support groove 101 is provided on the side of the flange plate A1; the flange plate B2 is arranged on the side of the flange plate A1, and a docking clamping groove 201 is provided on the side of the flange plate B2; the rotating support ring 3 is fixedly installed on the outside of the flange plate A1 and the flange plate B2 by welding; the flange inner cylinder 5 is fixedly arranged on the inside of the flange plate A1 and the flange plate B2 by welding, a welding side ring 501 is fixedly installed on the side of the flange inner cylinder 5 by welding, and a flow guide inner cylinder 502 is fixedly installed on the inside of the welding side ring 501 by welding; the delivery pipe 6 is fixedly installed on the side of the welding side ring 501 by welding; an assembly inner groove 701 is provided on the inside of the clamping support ring 7, the clamping support ring 7 is rotatably sleeved on the outside of the flange plate A1 and the flange plate B2 through the assembly inner groove 701 in cooperation with the rotating support ring 3, a thread load groove 706 is provided on the outside of the clamping support ring 7, a support side frame 702 is fixedly installed on the side of the clamping support ring 7 by welding, a locking clamp frame 703 is arranged on the side of one end of the support side frame 702, and at the same time, the support side frame 702 and the locking clamp frame 703 are sleeved on the outside of the delivery pipe 6; a locking thread 802 is provided on the inside of the clamping support cylinder 8, and the clamping support cylinder 8 is fixedly sleeved on the outside of the clamping support ring 7 through the locking thread 802 in cooperation with the thread load groove 706; the positioning load ring 9 is sleeved on the outside of both ends of the clamping support cylinder 8.

[0054] Example 1: As Figures 3 to 10As shown, a positioning support ring 601 is fixedly installed on the outer side of the conveying pipe 6 by welding; clamping grooves 704 and locking side blocks 705 are also provided on the sides of the support side frame 702 and the locking clamp frame 703; the clamping grooves 704 are opened on the inner sides of the support side frame 702 and the locking clamp frame 703; the locking side blocks 705 are fixedly installed on the outer ends of both sides of the support side frame 702 and the locking clamp frame 703 by welding; an assembly support ring 801 is fixedly installed on the outer side of the clamping support cylinder 8 by welding; a rotating support groove 901 and a fixed support 902 are also provided on the side of the positioning carrier ring 9; the rotating support groove 901 is opened on the inner side of the positioning carrier ring 9; the fixed support 902 is fixedly installed on the outer side of the positioning carrier ring 9; through the cooperation of the clamping support cylinder 8 with a preset thread structure, the two clamping support rings 7 can be limited and locked, and the auxiliary locking of the butt joint of the flange A1 and the flange B2 can be carried out synchronously.

[0055] Embodiment 2: On the basis of Embodiment 1, as Figures 2 to 9 shown, docking side rings 301, bearing grooves 302, locking openings 303 and docking bolts 304 are also provided on the outer sides of the flange A1 and the flange B2; the docking side rings 301 are fixedly arranged on the sides of the flange A1 and the flange B2 by welding; the bearing grooves 302 are opened on the sides of the docking side rings 301; the locking openings 303 are penetrated and opened on the sides of the flange A1 and the flange B2; the docking bolts 304 are arranged inside the locking openings 303 opened on the flange A1 and the flange B2; a flange gasket 4 is fixedly arranged inside the bearing grooves 302; a docking support ring 503 and a docking side groove 504 are also provided on the side of the flange inner cylinder 5; the docking support ring 503 is fixedly arranged on the side of a group of flange inner cylinders 5 by welding; the docking side groove 504 is opened on the side of the other group of flange inner cylinders 5; through the cooperation of the docking support ring 503 with the docking side groove 504, the flow guiding inner cylinders 502 are docked, and the two flow guiding inner cylinders 502 are used for the guiding and conveying of fluid pressure stabilization.

[0056] The specific usage mode and function of this embodiment: In the present invention, during use, the positioning support ring 601 is pre-installed on the conveying pipe 6 by welding, and at the same time, the side ring 501 is welded to fix the conveying pipe 6 for fluid bearing to be docked. At the same time, the two conveying pipes 6 respectively fixedly support the flange A1 and the flange B2. The two flange gaskets 4 are positioned and supported through the bearing grooves 302, so that the flange A1 and the flange B2 are quickly positioned and docked through the docking groove 101 and the docking slot 201. The flange A1 and the flange B2 are initially docked and locked through the docking bolts 304, so that the two conveying pipes 6 stably convey the fluid in a sealed manner. The support side frame 702 cooperates with the locking clamp frame 703 to enable the clamping support ring 7 to limit and support the two conveying pipes 6. The clamping support cylinder 8 synchronously locks the support of the two clamping support rings 7 through a thread structure, so that the clamping support cylinder 8 cooperates with the positioning carrier ring 9 and the fixed support 902 to support and reinforce the docking part of the two conveying pipes 6.

Claims

1. A special FG flange for bearing pressure, comprising: Flange A (1), flange B (2), rotating support ring (3), flange inner cylinder (5), conveying pipe (6), clamping support ring (7), clamping support cylinder (8) and positioning carrier ring (9); A docking support groove (101) is provided on the side of the flange A (1); the flange B (2) is arranged on the side of the flange A (1), and a docking card slot (201) is provided on the side of the flange B (2); the rotating support ring (3) is fixedly installed on the outside of the flange A (1) and the flange B (2) by welding; characterized in that, the flange inner cylinder (5) is fixedly arranged on the inside of the flange A (1) and the flange B (2) by welding, a welding side ring (501) is fixedly installed on the side of the flange inner cylinder (5) by welding, and a diversion inner cylinder (502) is fixedly installed on the inside of the welding side ring (501) by welding; the conveying pipe (6) is fixedly installed on the side of the welding side ring (501) by welding; an assembly inner groove (701) is provided on the inside of the clamping support ring (7), and the clamping support ring (7) is rotatably sleeved on the outside of the flange A (1) and the flange B (2) by fitting the assembly inner groove (701) with the rotating support ring (3), a threaded load groove (706) is provided on the outside of the clamping support ring (7), a support side frame (702) is fixedly installed on the side of the clamping support ring (7) by welding, a locking clip frame (703) is arranged on one end side of the support side frame (702), and at the same time, the support side frame (702) and the locking clip frame (703) are sleeved on the outside of the conveying pipe (6); a locking thread (802) is provided on the inside of the clamping support cylinder (8), and the clamping support cylinder (8) is fixedly sleeved on the outside of the clamping support ring (7) by fitting the locking thread (802) with the threaded load groove (706); the positioning carrier ring (9) is sleeved on the outside of both ends of the clamping support cylinder (8).

2. A special FG flange for pressure bearing according to claim 1, characterized in that: On the outside of the flange A (1) and the flange B (2), there are also provided: a docking side ring (301), a bearing slot (302), a locking hole (303) and a docking bolt (304); The docking side ring (301) is fixedly arranged on the sides of the flange A (1) and the flange B (2) by welding; the bearing slot (302) is provided on the side of the docking side ring (301); the locking hole (303) is penetrated and provided on the sides of the flange A (1) and the flange B (2); the docking bolt (304) is arranged inside the locking hole (303) provided on the flange A (1) and the flange B (2).

3. A special FG flange for pressure bearing according to claim 2, characterized in that: A flange gasket (4) is fixedly arranged inside the bearing slot (302).

4. A special FG flange for pressure bearing according to claim 1, characterized in that: On the side of the flange inner cylinder (5), there are also provided: a docking support ring (503) and a docking side slot (504); The docking support ring (503) is fixedly arranged on the side of a group of flange inner cylinders (5) by welding; the docking side slot (504) is provided on the side of another group of flange inner cylinders (5).

5. A special FG flange for pressure bearing according to claim 1, characterized in that: A positioning support ring (601) is fixedly installed on the outside of the conveying pipe (6) by welding.

6. A special FG flange for pressure bearing according to claim 1, characterized in that: On the sides of the support side frame (702) and the locking clip frame (703), there are also provided: a clamping slot (704) and a locking side block (705); The clamping slot (704) is formed on the inner sides of the support side frame (702) and the locking clamp frame (703); the locking side blocks (705) are fixedly installed by welding at both outer ends of the support side frame (702) and the locking clamp frame (703).

7. A special FG flange for pressure bearing according to claim 1, characterized in that: An assembly support ring (801) is fixedly installed on the outer side of the clamping support cylinder (8) by welding.

8. A special FG flange for pressure bearing according to claim 1, characterized in that: On the side of the positioning carrier ring (9), there are also provided: a rotating support groove (901) and a fixed support (902); The rotating support groove (901) is formed on the inner side of the positioning carrier ring (9); the fixed support (902) is fixedly installed on the outer side of the positioning carrier ring (9).

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