CN217503018U

CN217503018U - Expansion joint for high-temperature and high-pressure waste gas transmission

Info

Publication number: CN217503018U
Application number: CN202221447383.3U
Authority: CN
Inventors: 丁浩原; 丁浩轩; 曹卫军; 丁荣根
Original assignee: Jiangsu Best Bellows Co ltd
Current assignee: Jiangsu Best Bellows Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-27
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses an expansion joint for transmitting high-temperature and high-pressure waste gas, in particular to the technical field of expansion joints, which comprises a flange, wherein the outer surface of the flange is symmetrically provided with a fixed plate, the lower surface of the fixed plate positioned above is fixedly provided with a fixed rod, a telescopic rod is arranged in the fixed rod in a sliding way, the lower surface of the telescopic rod is fixedly connected on the fixed plate positioned below, a screw rod is arranged in the flange in a rotating way, a corrugated pipe is detachably arranged in the flange, the outer surface of the corrugated pipe is symmetrically provided with a limit block, a clamping block is arranged in the flange in a sliding way, and the clamping block and the limit block are movably clamped, the utility model uses a circular ring to drive the screw rod to rotate, thereby when the hole is aligned, the whole expansion joint does not need to rotate, only the circular ring is required to rotate, the expansion joint is prevented from moving during the rotation, the hole alignment failure is avoided, and the daily use is convenient, and the ball is used for assisting the circular ring to rotate, so that the circular ring can rotate more smoothly.

Description

Expansion joint for high-temperature and high-pressure waste gas transmission

Technical Field

The utility model relates to an expansion joint technical field specifically is an expansion joint for transmission of high temperature high pressure waste gas.

Background

Expansion joints, also called compensators and telescopic joints, belong to a compensating element used to compensate for the thermal elongation of the pipe, thus reducing the stresses of the pipe wall and the forces acting on the valve member or the support structure.

The hole needs to be carried out in the expansion joint when the installation, and present expansion joint need rotate whole expansion joint when the hole adjusts, and the expansion joint takes place to remove easily when rotating and produces the skew, leads to the hole failure, inconvenient daily use to for fixed mounting between expansion joint and the flange, inconvenient change the expansion joint, we propose an expansion joint that is used for high temperature high pressure exhaust gas transmission for this reason and are used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expansion joint for transmission of high temperature high pressure waste gas to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model adopts the following technical scheme: an expansion joint for transmitting high-temperature and high-pressure waste gas comprises a flange, wherein fixing plates are symmetrically arranged on the outer surface of the flange, a fixing rod is fixedly arranged on the lower surface of the upper fixing plate, a telescopic rod is slidably arranged in the fixing rod, the lower surface of the telescopic rod is fixedly connected to the lower fixing plate, and a screw rod is rotationally arranged in the flange; the corrugated pipe is detachably arranged in the flange, the limiting blocks are symmetrically arranged on the outer surface of the corrugated pipe, the clamping blocks are slidably arranged in the flange, and the clamping blocks are movably clamped with the limiting blocks.

Preferably, a circular ring is rotationally arranged in the flange, an installation groove is formed in the flange, the circular ring is installed in the installation groove, and one end of the screw rod penetrates through the circular ring and the flange.

Preferably, the upper surface of the flange is symmetrically provided with fixed blocks, the fixed blocks are internally provided with pull rods in a sliding manner, the lower surfaces of the pull rods are fixedly connected to the fixture blocks, and the side surfaces of the fixture blocks are fixedly provided with movable plates.

Preferably, the outer surface of the pull rod is fixedly provided with a fixed disc, the upper surface of the fixed disc is fixedly provided with a spring, and one end of the spring is fixedly connected in the fixed block.

Preferably, the fixed rod is provided with sliding grooves on two sides, the telescopic rod is fixedly provided with sliding blocks on two sides, and the sliding blocks slide in the sliding grooves.

Preferably, the flange is internally and symmetrically provided with storage tanks, the outer surface of the circular ring is symmetrically provided with balls, and two ends of the corrugated pipe are fixedly provided with sealing rings.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses in use the ring to drive the screw rod and rotate to when the installation was to the hole, need not rotate whole expansion joint, only need rotate the ring can, avoid the expansion joint to take place to remove when rotating, lead to the hole failure, make things convenient for daily use, and use ball to assist the ring and rotate, make ring pivoted more smooth.

2. The utility model discloses in through the cooperation between fixture block and the stopper, make bellows and flange be connected, the convenience is changed the bellows, secondly the movable plate promotes the bellows and moves down under the effect of spring, makes the laminating inseparabler between bellows and the pipeline to the fixed sealing ring that is equipped with in both ends of bellows, thereby has avoided revealing of waste gas.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the flange profile structure of the present invention.

Fig. 3 is a schematic view of the sectional structure of the fixing block of the present invention.

Fig. 4 is a schematic view of the cross-sectional structure of the fixing rod of the present invention.

In the figure: 1. a flange; 11. a screw; 12. a fixing plate; 13. a circular ring; 14. a ball bearing; 15. mounting grooves; 16. a storage tank; 2. a bellows; 21. a seal ring; 22. a limiting block; 3. a fixed block; 31. a pull rod; 32. a spring; 33. fixing the disc; 34. moving the plate; 35. a clamping block; 4. fixing the rod; 41. a telescopic rod; 42. A slider; 43. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in fig. 1-4, the utility model provides an expansion joint for high-temperature and high-pressure waste gas transmission, which comprises a flange 1, wherein the outer surface of the flange 1 is symmetrically provided with a fixing plate 12, the lower surface of the fixing plate 12 positioned above is fixedly provided with a fixing rod 4, a telescopic rod 41 is slidably arranged in the fixing rod 4, the lower surface of the telescopic rod 41 is fixedly connected to the fixing plate 12 positioned below, and a screw rod 11 is rotatably arranged in the flange 1 for installing the expansion joint; can dismantle in the flange 1 and be equipped with bellows 2, itself has ductility, is used for when the pipeline expends with heat and contracts with cold, reduces the stress reaction of pipe wall and increases the life of pipeline, the surface symmetry of bellows 2 is equipped with stopper 22, it is equipped with fixture block 35 to slide in the flange 1, is used for spacing bellows 2, and the side that fixture block 35 is close to stopper 22 is the inclined plane, and the surface symmetry of bellows 2 is equipped with stopper 22, fixture block 35 and stopper 22 activity block, and when fixture block 35 and stopper 22 block, bellows 2 can't remove, and when fixture block 35 and stopper 22 do not block, bellows 2 can remove, fixture block 35 and stopper 22 activity block.

Further, a circular ring 13 is rotatably arranged in the flange 1, an installation groove 15 is formed in the flange 1 and used for limiting the circular ring 13, the circular ring 13 is installed in the installation groove 15, therefore, the circular ring 13 can only rotate in the installation groove 15, the circular ring 13 is installed in the installation groove 15, and one end of the screw rod 11 penetrates through the circular ring 13 and the flange 1.

Further, the upper surface of the flange 1 is symmetrically provided with fixed blocks 3, a pull rod 31 is slidably arranged in the fixed blocks 3 and used for driving the fixture blocks 35 and the moving plate 34 to move upwards, the lower surface of the pull rod 31 is fixedly connected to the fixture blocks 35, the moving plate 34 is fixedly arranged on the side surfaces of the fixture blocks 35, so that when the pull rod 31 moves upwards, the fixture blocks 35 and the moving plate 34 are driven to move upwards, the lower surface of the pull rod 31 is fixedly connected to the fixture blocks 35, and the moving plate 34 is fixedly arranged on the side surfaces of the fixture blocks 35.

Further, a fixed plate 33 is fixedly arranged on the outer surface of the pull rod 31, a spring 32 is fixedly arranged on the upper surface of the fixed plate 33 and used for driving the clamping block 35 and the moving plate 34 to move downwards, when the fixing device is used, the pull rod 31 is pulled to drive the clamping block 35 and the moving plate 34 to move upwards, the spring 32 contracts under the action of external force, when hands are loosened, the spring 32 releases the contracting force to push the clamping block 35 and the moving plate 34 to move downwards, so that the clamping block 35 and the moving plate 34 can be driven to move downwards, and one end of the spring 32 is fixedly connected into the fixed block 3.

Furthermore, sliding grooves 43 are formed in two sides of the fixing rod 4 and used for limiting the telescopic rod 41, sliding blocks 42 are fixedly arranged on two sides of the telescopic rod 41, and the sliding blocks 42 slide in the sliding grooves 43, so that the telescopic rod 41 can only move along the sliding grooves 43, the sliding blocks 42 are fixedly arranged on two sides of the telescopic rod 41, and the sliding blocks 42 slide in the sliding grooves 43.

Further, the flange 1 is symmetrically provided with storage grooves 16 for storing the clamping blocks 35, the outer surface of the ring 13 is symmetrically provided with balls 14 for assisting the ring 13 to rotate, and two ends of the corrugated pipe 2 are fixedly provided with sealing rings 21 for sealing the pipeline.

The working principle is as follows: firstly, a flange 1 is contacted with a disc on a pipeline, a screw rod 11 is screwed into a circular ring 13, the screw rod 11 is held to drive the circular ring 13 to rotate, a hole on the circular ring 13 is aligned with a hole on the circular ring on the pipeline, the screw rod 11 is rotated, one end of the screw rod 11 penetrates through the circular ring, a nut is screwed in to connect the flange 1 with the circular ring, the position of the flange 1 is fixed, other screw rods 11 are screwed in, a slot is formed in the upper surface of the flange 1, a corrugated pipe 2 is inserted into the hole in the flange 1, a limit block 22 is inserted into the slot, the corrugated pipe 2 is rotated to enable the side surface of the limit block 22 to be contacted with the inclined surface of a clamp block 35, the clamp block 35 and a moving plate 34 are pushed to move upwards into a storage groove 16, at the moment, a spring 32 contracts under the action of external force, when the limit block 22 completely passes through the clamp block 35, at the moment, under the condition that the external force disappears, the spring 32 releases the contracted force to push the clamp block 35 and the moving plate 34 to move downwards, carry on spacingly to stopper 22, movable plate 34 promotes stopper 22 downstream this moment, make bellows 2 and pipeline laminating inseparabler, then when the pipeline carries out expend with heat and contract with cold, bellows 2 stretches out and draws back, it reciprocates to drive telescopic link 41, reduce the stress response to the pipe wall, this moment because slider 42 card is established in spout 43, thereby can restrict the flexible distance of bellows 2, avoid flexible distance to exceed self ductility, cause the damage to bellows 2, at last when needs are changed bellows 2, upwards stimulate pull rod 31, drive fixture block 35 and movable plate 34 rebound, bellows 2 can remove this moment, make stopper 22 take out through the slot, separate bellows 2 and flange 1, thereby change bellows 2.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An expansion joint for high-temperature and high-pressure exhaust gas transmission, comprising a flange (1), characterized in that: the outer surface of the flange (1) is symmetrically provided with fixing plates (12), the lower surface of the fixing plate (12) positioned above is fixedly provided with a fixing rod (4), the fixing rod (4) is internally provided with a telescopic rod (41) in a sliding manner, the lower surface of the telescopic rod (41) is fixedly connected to the fixing plate (12) positioned below, and the flange (1) is rotatably provided with a screw (11); can dismantle in flange (1) and be equipped with bellows (2), the surface symmetry of bellows (2) is equipped with stopper (22), it is equipped with fixture block (35) to slide in flange (1), fixture block (35) and stopper (22) activity block.

2. An expansion joint for high-temperature and high-pressure exhaust gas transmission according to claim 1, wherein a circular ring (13) is rotatably arranged in the flange (1), a mounting groove (15) is formed in the flange (1), the circular ring (13) is mounted in the mounting groove (15), and one end of the screw (11) penetrates through the circular ring (13) and the flange (1).

3. The expansion joint for high-temperature and high-pressure exhaust gas transmission according to claim 1, wherein the flange (1) is symmetrically provided with a fixed block (3) on the upper surface, a pull rod (31) is slidably arranged in the fixed block (3), the lower surface of the pull rod (31) is fixedly connected to a clamping block (35), and a moving plate (34) is fixedly arranged on the side surface of the clamping block (35).

4. An expansion joint for high-temperature and high-pressure exhaust gas transmission according to claim 3, wherein a fixing disc (33) is fixedly arranged on the outer surface of the pull rod (31), a spring (32) is fixedly arranged on the upper surface of the fixing disc (33), and one end of the spring (32) is fixedly connected in the fixing block (3).

5. The expansion joint for high-temperature and high-pressure exhaust gas transmission according to claim 1, wherein sliding grooves (43) are formed in two sides of the fixing rod (4), sliding blocks (42) are fixedly arranged on two sides of the telescopic rod (41), and the sliding blocks (42) slide in the sliding grooves (43).

6. An expansion joint for high-temperature and high-pressure exhaust gas transmission according to claim 2, wherein the flange (1) is symmetrically provided with storage grooves (16), the outer surface of the circular ring (13) is symmetrically provided with balls (14), and the corrugated pipe (2) is fixedly provided with sealing rings (21) at two ends.