CN111396661A

CN111396661A - Chemical liquid pipeline flange

Info

Publication number: CN111396661A
Application number: CN202010148273.6A
Authority: CN
Inventors: 杨柳; 郑豪
Original assignee: Hefei Huilegu Chemical Technology Development Co ltd
Current assignee: Hefei Huilegu Chemical Technology Development Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-07-10

Abstract

The invention relates to the field of flanges, in particular to a chemical liquid pipeline flange, which comprises a first flange and a second flange, wherein the first flange is positioned on one side of the second flange, the side of the first flange, which is far away from the second flange, is provided with a rotating ring, one side of the rotating ring, which is close to the first flange, is fixedly connected with three rotating structures, by arranging the rotating structure and the negative pressure structure, the pumping plug can slide in the clamping groove and pump air in the clamping groove to form a negative pressure environment in the clamping groove, so that the first flange and the second flange are connected in a sealing manner, the operation is simple, the sealing effect is good, the liquid leakage is avoided, the spring can promote the smooth section of thick bamboo and slide to the inside in card hole, makes the chemical industry liquid pipeline that is connected through first flange and second flange can keep the sealing connection state, and the operation process simple is got up in the installation, and is all very convenient when connecting and the split first flange and second flange.

Description

Chemical liquid pipeline flange

Technical Field

The invention relates to the field of flanges, in particular to a chemical liquid pipeline flange.

Background

In modern Chinese, chemical industry, chemical engineering and chemical process are simply referred to as chemical industry, which has important significance in national economy and engineering technology, chemical industry permeates into people's modern life, chemical liquid refers to chemical raw materials or chemical products in liquid form, in chemical industry, chemical liquid is transmitted through a special chemical liquid pipeline, when two pipelines are connected, the two pipelines are connected through a flange, so that the two pipelines are hermetically connected, and the chemical liquid cannot leak when being transmitted in the pipeline.

When two sections of pipelines are connected through flanges, sealing rings are usually clamped in two butting flanges, so that chemical liquid pipelines at two ends are connected in a sealing manner, the sealing effect is poor, and the phenomenon of leakage is easy to occur; when the flanges on the two sections of pipelines are connected, a plurality of bolts are required to be installed to ensure that the two flanges are kept in a connected state, the operation process of connecting and disassembling is very complicated, and the two sections of pipelines are very inconvenient to connect and disassemble through the flanges.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a chemical liquid pipeline flange.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a chemical industry liquid pipeline flange, includes first flange and second flange, first flange is located one side of second flange, one side of second flange is kept away from to first flange, one side that the second flange was kept away from to first flange is provided with the change, the change is close to the three rotating-structure of one side fixedly connected with of first flange, the loop type spout has been seted up to the inside of first flange, the inside sliding connection of loop type spout has the seal ring, be provided with three negative pressure structure and screens structure between seal ring and the second flange, be provided with location structure between first flange and the second flange.

Specifically, revolution mechanic includes turn trough and ejector pad, the turn trough is seted up in the one side that the second flange was kept away from to first flange, the turn trough is linked together with the loop type spout, ejector pad sliding connection is in the inside of turn trough, ejector pad and swivel fixed connection.

Specifically, one side of the seal ring, which is far away from the rotary groove, is fixedly connected with a seal air cushion, and the seal air cushion is abutted to the inner side of the annular sliding groove.

Specifically, the negative pressure structure includes the camber spout, takes out stopper, card hole and draw-in groove, the camber spout is seted up on the inside wall of loop type spout, the camber spout is linked together with the draw-in groove, the draw-in groove is seted up in one side that the second flange is close to first flange, take out stopper sliding connection in the inside of draw-in groove and camber spout, take out stopper and seal ring fixed connection, the one end at the draw-in groove inside wall is all seted up in the card hole, the card hole runs through the second flange, take out stopper and screens structure fixed connection.

Specifically, the outer side wall of the drawing plug is fixedly connected with a rubber pad, and the rubber pad is abutted to the inner side walls of the arc-shaped sliding groove and the clamping groove.

Specifically, the screens structure includes fixture block, slide bar, slide cartridge, spring, solid fixed ring and throw-out collar, the fixture block all with take out stopper fixed connection, fixture block sliding connection has seted up the spring groove in the inside of draw-in groove, the fixture block is close to one side of card hole, slide bar fixed connection is on the inside wall of spring groove, slide cartridge sliding connection is on the lateral wall of slide bar, the spring housing is established on the lateral wall of slide bar, gu fixed ring fixed connection is close to the one end of card hole at the slide bar, the throw-out collar slides and cup joints on the lateral wall of slide bar, gu fixed ring and the equal huadong of throw-out collar connect in the inside of slide cartridge, the both ends of spring respectively with spring groove and throw-out collar fixed connection, the slide cartridge is close to the one end sliding connection in card.

Specifically, location structure includes recess, lug and connecting bolt, recess, lug and connecting bolt all are provided with threely, three the recess is all seted up in one side that the second flange is close to first flange, and is three the equal fixed connection of lug is in one side that first flange is close to the second flange, and is three the lug joint is in the inside of three recess respectively, three through-hole has all been seted up to the lateral wall of first flange and second flange, through-hole on first flange and the second flange communicates each other, and is three connecting bolt all runs through the through-hole, the lateral wall of change is provided with grinds the line.

The invention has the beneficial effects that:

(1) according to the chemical liquid pipeline flange, the rotating structure and the negative pressure structure are arranged, the sealing air cushion and the rubber pad enable the clamping groove to be kept sealed, the rotating ring drives the sealing ring to rotate inside the annular sliding groove, the pumping plug can slide inside the clamping groove and can pump air inside the clamping groove, a negative pressure environment is formed inside the clamping groove, the first flange and the second flange are connected in a sealing mode, the operation is simple, the sealing effect is good, and liquid leakage is avoided.

(2) According to the chemical liquid pipeline flange, the clamping structure is arranged, after a negative pressure environment is formed in the clamping groove, the first flange and the second flange are tightly abutted, the spring can push the sliding cylinder to slide to the inside of the clamping hole, so that a chemical liquid pipeline connected through the first flange and the second flange can be kept in a sealed connection state, the arranged positioning structure can assist in supporting the first flange and the second flange, the installation and operation process is simple, only three bolts need to be removed, the sleeve is pushed into the spring groove through the clamping hole, then the rotating ring is rotated, the first flange and the second flange can be detached, the installation and detachment operation process is simple, and the first flange and the second flange are very convenient to connect and detach.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a chemical liquid pipeline flange according to the present invention;

FIG. 2 is a schematic structural diagram of a first flange in a chemical liquid pipeline flange according to the present invention;

FIG. 3 is a schematic structural diagram of a swivel in a chemical liquid pipeline flange according to the present invention;

FIG. 4 is a schematic structural diagram of a seal ring in a chemical liquid pipeline flange according to the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 1 according to the present invention.

In the figure: 1. a first flange; 2. a second flange; 3. a rotating structure; 31. rotating the ring; 32. rotating the groove; 33. a push block; 34. grinding lines; 4. a negative pressure structure; 41. sealing a ring; 42. a ring-shaped chute; 43. an arc-shaped chute; 44. sealing the air cushion; 45. drawing the plug; 46. a rubber pad; 47. a card slot; 5. a clamping structure; 51. a clamping block; 52. a spring slot; 53. a slide bar; 54. a slide cylinder; 55. a fixing ring; 56. a push ring; 57. a spring; 58. blocking holes; 6. a positioning structure; 61. a bump; 62. a groove; 63. a through hole; 64. and connecting the bolts.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the chemical liquid pipeline flange provided by the invention comprises a first flange 1 and a second flange 2, wherein the first flange 1 is located on one side of the second flange 2, the first flange 1 is located on one side away from the second flange 2, a swivel 31 is arranged on one side of the first flange 1 away from the second flange 2, three rotating structures 3 are fixedly connected to one side of the swivel 31 close to the first flange 1, a ring-shaped chute 42 is arranged inside the first flange 1, a seal ring 41 is slidably connected to the inside of the ring-shaped chute 42, three negative pressure structures 4 and a clamping structure 5 are arranged between the seal ring 41 and the second flange 2, and a positioning structure 6 is arranged between the first flange 1 and the second flange 2.

Specifically, revolution mechanic 3 includes turn trough 32 and ejector pad 33, turn trough 32 sets up in the one side that second flange 2 was kept away from to first flange 1, turn trough 32 is linked together with ring type spout 42, ejector pad 33 sliding connection is in the inside of turn trough 32, ejector pad 33 and swivel 31 fixed connection, when rotating swivel 31, can drive seal 41 through ejector pad 33 and slide in ring type spout 42's inside, and turn trough 32 has restricted ejector pad 33's displacement.

Specifically, a sealing air cushion 44 is fixedly connected to a side of the seal ring 41 away from the rotary groove 32, and the sealing air cushion 44 is in contact with an inner side of the annular sliding groove 42, so as to improve the sealing performance between the seal ring 41 and the annular sliding groove 42.

Specifically, the negative pressure structure 4 includes an arc chute 43, a plug 45, a hole 58 and a slot 47, the arc chute 43 is disposed on the inner side wall of the annular chute 42, the arc chute 43 is communicated with the slot 47, the slot 47 is disposed on one side of the second flange 2 close to the first flange 1, the plug 45 is slidably connected inside the slot 47 and the arc chute 43, the plug 45 is fixedly connected with the seal ring 41, the holes 58 are disposed at one end of the inner side wall of the slot 47, the hole 58 penetrates through the second flange 2, the plug 45 is fixedly connected with the slot 5, when the rotating ring 31 rotates, the plug 45 in the three negative pressure structures 4 is driven to slide inside the slot 47 in the direction close to the hole 58, so as to plug the air in the slot 47 on one side of the plug 45 far from the hole 58, and form a negative pressure environment on one side of the plug 45 far from the slot 47, the first flange 1 and the second flange 2 can be tightly abutted, so that the first flange 1 and the second flange 2 are connected in a sealing manner.

Specifically, a rubber pad 46 is fixedly connected to the outer side wall of the plug 45, and the rubber pad 46 abuts against the inner side walls of the arc-shaped sliding groove 43 and the clamping groove 47, so that the air tightness between the plug 45 and the arc-shaped sliding groove 43 and the clamping groove 47 is improved.

Specifically, the clamping structure 5 includes a fixture block 51, a sliding rod 53, a sliding barrel 54, a spring 57, a fixing ring 55 and a push ring 56, the fixture block 51 is fixedly connected with the plug 45, the fixture block 51 is slidably connected inside the clamping groove 47, one side of the fixture block 51 close to the clamping hole 58 is provided with the spring groove 52, the sliding rod 53 is fixedly connected on the inner side wall of the spring groove 52, the sliding barrel 54 is slidably connected on the outer side wall of the sliding rod 53, the spring 57 is sleeved on the outer side wall of the sliding rod 53, the fixing ring 55 is fixedly connected on one end of the sliding rod 53 close to the clamping hole 58, the push ring 56 is slidably sleeved on the outer side wall of the sliding rod 53, the fixing ring 55 and the push ring 56 are connected inside the sliding barrel 54, two ends of the spring 57 are respectively fixedly connected with the spring groove 52 and the push ring 56, one end of the sliding barrel 54 close to the clamping hole 58 is slidably connected inside, because the spring 57 has elasticity, when the pushing ring 56 and the inner side wall of the spring groove 52 extend, the sliding cylinder 54 can be pushed to slide on the outer side wall of the sliding rod 53 and slide to the inside of the clamping hole 58, so that the movement of the latch 51 and the plug 45 in the clamping groove 47 is limited, when the sliding cylinder 54 is pushed to the inside of the spring groove 52 through the clamping hole 58, the sliding cylinder 54 slides on the outer side wall of the sliding rod 53, the pushing ring 56 pushes the spring 57 to contract, the sliding cylinder 54 slides to the inside of the spring groove 52, the plug 45 and the latch 51 slide in the clamping groove 47, and the negative pressure environment in the clamping groove 47 can be relieved.

Specifically, location structure 6 includes recess 62, lug 61 and connecting bolt 64, recess 62, lug 61 and connecting bolt 64 all are provided with threely, three recess 62 all sets up in one side that second flange 2 is close to first flange 1, and is three the equal fixed connection of lug 61 is in one side that first flange 1 is close to second flange 2, and is three lug 61 joint respectively is in the inside of three recess 62, three through-hole 63 has all been seted up to the lateral wall of first flange 1 and second flange 2, through-hole 63 on first flange 1 and the second flange 2 communicates each other, and is three connecting bolt 64 all runs through-hole 63, and three connecting bolt 64 can the connection between the first flange 1 of auxiliary stay and the second flange 2, the lateral wall of change 31 is provided with grind line 34, and grind line 34 is more convenient for rotate change 31.

When in use, the first flange 1 and the second flange 2 are respectively installed at the end openings of two sections of pipelines, the first flange 1 and the second flange 2 are abutted, the protruding blocks 61 are all positioned inside the grooves 62, the through holes 63 on the first flange 1 and the second flange 2 are communicated, three pistons are respectively inserted into the corresponding clamping grooves 47, then three bolts are respectively installed in the corresponding through holes 63, then the rotating ring 31 is rotated through the grinding patterns 34, the pushing blocks 33 are driven to slide inside the rotating groove 32, the three pushing blocks 33 jointly drive the sealing ring 41 to slide inside the annular sliding groove 42, the sealing ring 41 drives three pistons to slide inside the clamping grooves 47, as the sealing air cushion 44 is abutted against the inner side wall of the annular sliding groove 42, the rubber cushion 46 is abutted against the inner side wall of the clamping grooves 47 and the inner side wall of the arc sliding groove 43, a sealed space is formed at one side of the piston far away from the clamping hole 58, when the piston slides like the clamping hole 58, the air in the clamping groove 47 at the side far away from the clamping hole 58 is pumped, so that a negative pressure environment is formed in the clamping groove 47, the first flange 1 and the second flange 2 are tightly abutted, the two sections of chemical liquid pipelines are hermetically connected through the first flange 1 and the second flange 2, the sealing effect is good, the leakage situation is avoided, the clamping block 51 moves along with the piston in the clamping groove 47, because the spring 57 has elasticity, the spring 57 extends between the spring groove 52 and the push ring 56, the sliding cylinder 54 slides towards the outside of the spring groove 52 by pushing the push ring 56, the sliding cylinder 54 is always abutted against the inner side wall of the clamping groove 47, when the sliding cylinder 54 is opposite to the clamping hole 58, the sliding cylinder 54 slides to the inside of the clamping hole 58, the fixing ring 55 abuts against the push ring 56 to prevent the sliding cylinder 54 from slipping, and the clamping block 51 and the piston can be prevented from sliding in the clamping groove 47, so that the first flange 1 and the second flange 2 are kept in a sealed connection state, installation easy operation and convenience, during the dismantlement, only need simultaneously through card hole 58 to the inside promotion slide cartridge 54 of spring groove 52, then rotate swivel 31, swivel 31 passes through ejector pad 33 and drives seal ring 41 and slide in ring type spout 42 to drive three piston simultaneously and slide in the inside of draw-in groove 47, remove the inside negative pressure environment of draw-in groove 47, dismantle three bolt after, can be with first flange 1 and the split of second flange 2, dismantle easy operation and convenience.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a chemical industry liquid pipeline flange which characterized in that: including first flange (1) and second flange (2), first flange (1) is located one side of second flange (2), one side of second flange (2) is kept away from in first flange (1), one side that second flange (2) were kept away from in first flange (1) is provided with change (31), change (31) are close to three rotating-structure (3) of one side fixedly connected with of first flange (1), loop type spout (42) have been seted up to the inside of first flange (1), the inside sliding connection of loop type spout (42) has seal ring (41), be provided with three negative pressure structure (4) and screens structure (5) between seal ring (41) and second flange (2), be provided with location structure (6) between first flange (1) and second flange (2).

2. The chemical liquid pipeline flange according to claim 1, wherein: rotating-structure (3) are including rotary trough (32) and ejector pad (33), rotary trough (32) are seted up in first flange (1) and are kept away from one side of second flange (2), rotary trough (32) are linked together with ring type spout (42), ejector pad (33) sliding connection is in the inside of rotary trough (32), ejector pad (33) and change (31) fixed connection.

3. The chemical liquid pipeline flange according to claim 1, wherein: one side of the seal ring (41) far away from the rotary groove (32) is fixedly connected with a seal air cushion (44), and the seal air cushion (44) is abutted against the inner side of the annular sliding groove (42).

4. The chemical liquid pipeline flange according to claim 3, wherein: negative pressure structure (4) are including arc spout (43), take out stopper (45), card hole (58) and draw-in groove (47), arc spout (43) are seted up on the inside wall of ring type spout (42), arc spout (43) are linked together with draw-in groove (47), one side that second flange (2) are close to first flange (1) is seted up in draw-in groove (47), take out inside of stopper (45) sliding connection at draw-in groove (47) and arc spout (43), take out stopper (45) and seal ring (41) fixed connection, the one end at draw-in groove (47) inside wall is all seted up in card hole (58), second flange (2) are run through in card hole (58), take out stopper (45) and screens structure (5) fixed connection.

5. The chemical liquid pipeline flange according to claim 4, wherein: the outer side wall of the drawing plug (45) is fixedly connected with a rubber pad (46), and the rubber pad (46) is abutted to the inner side walls of the arc-shaped sliding groove (43) and the clamping groove (47).

6. The chemical liquid pipeline flange according to claim 4, wherein: the clamping structure (5) comprises clamping blocks (51), sliding rods (53), sliding cylinders (54), springs (57), fixing rings (55) and push rings (56), the clamping blocks (51) are fixedly connected with the pulling plugs (45), the clamping blocks (51) are slidably connected inside the clamping grooves (47), spring grooves (52) are formed in one sides, close to the clamping holes (58), of the clamping blocks (51), the sliding rods (53) are fixedly connected onto the inner side walls of the spring grooves (52), the sliding cylinders (54) are slidably connected onto the outer side walls of the sliding rods (53), the springs (57) are sleeved on the outer side walls of the sliding rods (53), the fixing rings (55) are fixedly connected to one ends, close to the clamping holes (58), of the sliding rods (53), the push rings (56) are slidably sleeved on the outer side walls of the sliding rods (53), the fixing rings (55) and the push rings (56) are connected inside the sliding cylinders (54) in an east mode, two ends of the spring (57) are respectively and fixedly connected with the spring groove (52) and the push ring (56), and one end of the sliding cylinder (54) close to the clamping hole (58) is connected inside the clamping hole (58) in a sliding mode.

7. The chemical liquid pipeline flange according to claim 1, wherein: the positioning structure (6) comprises three grooves (62), three convex blocks (61) and three connecting bolts (64), the three grooves (62) are formed in one side, close to the first flange (1), of the second flange (2), the three convex blocks (61) are fixedly connected to one side, close to the second flange (2), of the first flange (1), the three convex blocks (61) are clamped inside the three grooves (62) respectively, three through holes (63) are formed in the side walls of the first flange (1) and the second flange (2), the through holes (63) in the first flange (1) and the second flange (2) are communicated with each other, and the three connecting bolts (64) penetrate through the through holes (63); the outer side wall of the rotating ring (31) is provided with grinding grains (34).