Safe anti-explosion self-sealing rotary compensator

Abstract

The utility model relates to the technical field of pipeline rotating compensators, and discloses a safety type anti-explosion self-sealing rotating compensator which comprises an outer sleeve, a sealing gland is connected in the outer sleeve in a sleeved mode, the inner wall of the sealing gland is rotationally connected with an anti-attrition centering bearing, and the inner wall of the anti-attrition centering bearing is rotationally connected with an outer sleeve. A rotating pipe is arranged on the inner wall of the anti-attrition centering bearing, a bolt is arranged on the upper surface of the sealing gland, a nut is in threaded connection with the outer surface of the bolt, and a sealing assembly is arranged on the inner wall of the outer sleeve. The sealing gland and the outer sleeve are limited through bolts and nuts, then the sealing piece is clamped into a sealing groove formed in the bottom of the sealing gland, the outer surface of the arc-shaped limiting piece makes contact with the outer surface of the sealing piece, and therefore the sealing performance of equipment can be better; and the sealing piece is better limited in the sealing groove in cooperation with the elastic force of the contraction spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline rotation compensator technical field, specifically is a safe type explosion -proof self -sealing rotation compensator. BACKGROUND

[0002] Rotation compensator is a novel compensator in heat pipe thermal expansion compensation, and the structure of rotation compensator is mainly composed of integral type sealing seat, sealing gland, speed reducer, antifriction center bearing, sealing material, rotation cylinder and other components, when being installed on heat pipe, needs two groups or more rotation compensators relative rotation to absorb the thermal displacement of pipeline, thereby reducing the stress of pipeline.

[0003] According to the safe type explosion -proof self -sealing rotation compensator (announcement number: CN118602201A) of publicizing, the tension between the sealing gland and the sealing seat in the above application is utilized to the tension of the flexible graphite material in the No. 1 sealing chamber after the loss, and the sealing gland is pulled to the direction close to the sealing seat, so that the sealing gland is pressed to the flexible graphite material, and the sealing effect is improved.

[0004] But the above-mentioned equipment in the actual use process, when the pipeline is impacted, the rotating pipe will shake in the outer sleeve, and then the gap between the rotating pipe and the outer sleeve is generated, so that the sealing property of the equipment is not good, in view of this, we provide a safe type explosion -proof self -sealing rotation compensator. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a safe type explosion -proof self -sealing rotation compensator to solve the problems in the above background.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a safe type explosion -proof self -sealing rotation compensator, including the outer sleeve, the outer sleeve is sleeved with the sealing gland in the inside, the sealing gland inner wall is rotatably connected with the antifriction center bearing, the antifriction center bearing inner wall is provided with the rotating pipe, the sealing gland upper surface is provided with the bolt, the bolt outer surface is connected with the nut with screw threads, the outer sleeve inner wall is provided with the sealing assembly, and the sealing assembly includes:

[0007] The limiting ring is fixedly connected to the inner wall side of the outer sleeve, and the sealing piece is fixedly connected to the upper surface of the limiting ring.

[0008] The sealing groove is arranged in the bottom of the sealing gland, and the limiting piece is fixedly connected to the bottom of the sealing gland.

[0009] The contraction spring is fixedly connected to the upper surface of the outer sleeve, and the mounting groove is arranged on the outer surface of the rotating pipe.

[0010] Preferably, the size of the contraction spring is matched with the size of the bolt, and the center of the contraction spring corresponds to the center of the bolt, so that the bolt end passes through the sealing gland, the outer sleeve and the contraction spring simultaneously.

[0011] Preferably, the position of the sealing piece corresponds to the position of the sealing groove, and the top of the sealing piece is arranged in an arc shape, so that the sealing piece can be well clamped in the sealing groove.

[0012] Preferably, the limiting piece is arranged in an arc shape, the number of the limiting piece is two, and the two limiting pieces are symmetrically arranged at the center of the sealing groove, so that the sealing property between the sealing gland and the outer sleeve is better.

[0013] Preferably, the inner wall of the mounting groove is provided with an auxiliary assembly, the auxiliary assembly comprises a mounting piece, the mounting piece is fixedly connected to the inner wall of the mounting groove, a fixing ring is fixedly connected to the outer surface of the mounting piece, and the inner wall of the outer sleeve is fixedly connected with a convex piece.

[0014] Preferably, the convex piece and the fixing ring are arranged in a staggered manner, and the outer surface of the convex piece is provided with a rubber layer.

[0015] Preferably, the outer surface of the fixing ring is in contact with the outer surface of the convex piece, and the fixing ring is uniformly distributed on the outer surface of the mounting piece in a linear array.

[0016] Compared with the prior art, the safe anti-explosion self-sealing rotary compensator has the following beneficial effects:

[0017] 1. The safe anti-explosion self-sealing rotary compensator is characterized in that the sealing property of the device is better, the sealing gland is installed in the outer sleeve, the sealing gland and the outer sleeve are limited by the bolt and the nut, the sealing piece is clamped in the sealing groove arranged at the bottom of the sealing gland, the outer surface of the arc-shaped limiting piece is in contact with the outer surface of the sealing piece, the sealing property of the device is better, and the sealing piece is better limited in the sealing groove by the elastic force of the contraction spring.

[0018] 2. The safe anti-explosion self-sealing rotary compensator is characterized in that the sealing property of the device is better when the device is vibrated, the center between the two limiting rings corresponds to the convex piece after the rotary pipe is installed in the outer sleeve, the rubber layer arranged on the outer surface of the convex piece buffers the shaking force of the rotary pipe when the rotary pipe is shaken, and the outer surface of the convex piece is in contact with the limiting ring, so that the sealing property of the device is better. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional left view structural schematic view of the utility model;

[0020] Figure 2 It is a sectional structure schematic view of the utility model;

[0021] Figure 3 It is a rotating pipe structure schematic view of the utility model;

[0022] Figure 4 It is an A area enlarged structure schematic view of the utility model;

[0023] Figure 5 It is a sleeve pipe structure schematic view of the utility model.

[0024] In the figure: 1, sleeve pipe; 2, sealing gland; 3, wear-reducing centering bearing; 4, rotating pipe; 5, bolt; 6, nut; 7, sealing assembly; 701, contraction spring; 702, mounting groove; 703, limiting ring; 704, sealing element; 705, sealing groove; 706, limiting element; 8, auxiliary assembly; 801, mounting element; 802, fixing ring; 803, convex element. DETAILED DESCRIPTION

[0025] As Figures 1-5 shown, the utility model provides a technical scheme: a safe type explosion -proof self -sealing rotating compensator, including sleeve pipe 1, sleeve pipe 1 inside sleeve joint has sealing gland 2, sealing gland 2 inner wall rotationally connected with wear-reducing centering bearing 3, wear-reducing centering bearing 3 inner wall is provided with rotating pipe 4, sealing gland 2 upper surface is provided with bolt 5, and the outer surface of bolt 5 is connected with nut 6, and the inner wall of sleeve pipe 1 is provided with sealing assembly 7, and sealing assembly 7 includes limiting ring 703, sealing element 704, sealing groove 705, limiting element 706, contraction spring 701 and mounting groove 702.

[0026] In the embodiment of the utility model, limiting ring 703 is fixedly connected on the inner wall side of sleeve pipe 1, limiting ring 703 upper surface is fixedly connected with sealing element 704, the position of sealing element 704 corresponds with the position of sealing groove 705, the top of sealing element 704 is arc-shaped and is provided, this makes sealing element 704 can be well inserted into sealing groove 705 inside, sealing groove 705 is opened in sealing gland 2 bottom, sealing gland 2 bottom is fixedly connected with limiting element 706, limiting element 706 is arc-shaped and is provided, the number of limiting element 706 is two, and two limiting element 706 are symmetrically arranged at the center of sealing groove 705, this makes the sealing property between sealing gland 2 and sleeve pipe 1 better, contraction spring 701 is fixedly connected on the upper surface of sleeve pipe 1, and the end of contraction spring 701 is fixedly connected with sealing gland 2 bottom, the size of contraction spring 701 is adapted to the size of bolt 5, the center of contraction spring 701 corresponds with the center of bolt 5, this makes the end of bolt 5 pass through sealing gland 2 and sleeve pipe 1 when also simultaneously pass through contraction spring 701, and the outer surface of rotating pipe 4 is provided with mounting groove 702.

[0027] Meanwhile, the inner wall of the installation groove 702 is provided with an auxiliary assembly 8, the auxiliary assembly 8 comprises a mounting piece 801, the mounting piece 801 is fixedly connected to the inner wall of the installation groove 702, a fixing ring 802 is fixedly connected to the outer surface of the mounting piece 801, the fixing ring 802 is in contact with the outer surface of the convex piece 803, the fixing ring 802 is uniformly distributed in a linear array at the outer surface of the mounting piece 801, the inner wall of the outer sleeve 1 is fixedly connected with the convex piece 803, the convex piece 803 is staggered with the fixing ring 802, and the outer surface of the convex piece 803 is provided with a rubber layer, so that when the rotating pipe 4 is installed in the outer sleeve 1, the center between the two fixing rings 802 corresponds to the convex piece 803, and the rubber layer on the outer surface of the convex piece 803 cooperates with the limiting ring 703 to buffer the shaking force of the rotating pipe 4 when the rotating pipe 4 shakes, and the convex piece 803 is in contact with the outer surface of the limiting ring 703, so that the sealing performance of the equipment is better.

[0028] In the utility model, when the sealing gland 2 is installed in the outer sleeve 1, the sealing gland 2 and the outer sleeve 1 are limited by the bolt 5 and the nut 6, and then the sealing piece 704 is clamped in the sealing groove 705 at the bottom of the sealing gland 2, and the outer surface of the arc-shaped limiting piece 706 is in contact with the outer surface of the sealing piece 704, so that the sealing performance of the equipment is better, and the elastic force of the contraction spring 701 can better limit the sealing piece 704 in the sealing groove 705.

[0029] Further, when the rotating pipe 4 is installed in the outer sleeve 1, the center between the two limiting rings 703 corresponds to the convex piece 803, and the rubber layer on the outer surface of the convex piece 803 cooperates with the limiting ring 703 to buffer the shaking force of the rotating pipe 4 when the rotating pipe 4 shakes, and the convex piece 803 is in contact with the outer surface of the limiting ring 703, so that the sealing performance of the equipment is better.

[0030] The above is a general description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the utility model, the modifications or improvements are within the scope of the utility model.

Claims

1. A safety-type explosion-proof self-sealing rotary compensator, comprising an outer sleeve (1), a sealing cap (2) sleeved inside the outer sleeve (1), a friction-reducing centering bearing (3) rotatably connected to the inner wall of the sealing cap (2), a rotating tube (4) provided on the inner wall of the friction-reducing centering bearing (3), a bolt (5) provided on the upper surface of the sealing cap (2), and a nut (6) threadedly connected to the outer surface of the bolt (5), characterized in that: The inner wall of the outer sleeve (1) is provided with a sealing assembly (7), the sealing assembly (7) including: A limiting ring (703) is fixedly connected to the inner wall side of the outer sleeve (1), and a sealing element (704) is fixedly connected to the upper surface of the limiting ring (703). A sealing groove (705) is formed at the bottom of the sealing cover (2), and a limiting member (706) is fixedly connected to the bottom of the sealing cover (2). A retraction spring (701) is fixedly connected to the upper surface of the outer sleeve (1), and an installation groove (702) is provided on the outer surface of the rotating tube (4).

2. The safety-type explosion-proof self-sealing rotary compensator according to claim 1, characterized in that: The size of the retraction spring (701) is adapted to the size of the bolt (5), and the center of the retraction spring (701) corresponds to the center of the bolt (5).

3. The safety-type explosion-proof self-sealing rotary compensator according to claim 1, characterized in that: The position of the seal (704) corresponds to the position of the sealing groove (705), and the top of the seal (704) is arc-shaped.

4. The safety-type explosion-proof self-sealing rotary compensator according to claim 1, characterized in that: The limiting member (706) is arc-shaped, and there are two limiting members (706), which are symmetrically arranged at the center of the sealing groove (705).

5. A safety-type explosion-proof self-sealing rotary compensator according to claim 1, characterized in that: An auxiliary component (8) is provided on the inner wall of the mounting groove (702). The auxiliary component (8) includes a mounting piece (801). The mounting piece (801) is fixedly connected to the inner wall of the mounting groove (702). A fixing ring (802) is fixedly connected to the outer surface of the mounting piece (801). A protrusion (803) is fixedly connected to the inner wall of the outer sleeve (1).

6. A safety-type explosion-proof self-sealing rotary compensator according to claim 5, characterized in that: The protrusion (803) and the fixing ring (802) are staggered, and the outer surface of the protrusion (803) is provided with a rubber layer.

7. A safety-type explosion-proof self-sealing rotary compensator according to claim 5, characterized in that: The outer surface of the fixing ring (802) is in contact with the outer surface of the protrusion (803), and the fixing ring (802) is evenly distributed in a linear array on the outer surface of the mounting part (801).

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