CN215258384U

CN215258384U - Steam insulating pipe convenient to overhaul

Info

Publication number: CN215258384U
Application number: CN202121287669.5U
Authority: CN
Inventors: 包建平
Original assignee: Jiangsu Hengyu Tube Industry Technology Co ltd
Current assignee: Jiangsu Hengyu Tube Industry Technology Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-12-21
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a steam heat-preservation pipe convenient for maintenance, which comprises two pipe bodies and a connecting ring; the pipe body comprises an outer pipe, an inner pipe and a heat-insulating layer; the end part of the outer pipe is provided with a connecting flange, and the end surface of the inner pipe outwards protrudes out of the end surface of the outer pipe; the connecting ring is provided with a plurality of transverse through holes, the middle parts of the transverse through holes are provided with vertical holes, and T-shaped chambers are formed at the connecting parts of the transverse through holes and the vertical holes; two ends of the transverse through hole are respectively provided with two elastic pieces, and one end of each elastic piece is provided with a transmission triangular block; a lifting piece is arranged in the vertical hole, and a lifting triangular block is arranged at one end of the lifting piece; the other end of the lifting piece is connected with a sector clamping block; the two elastic pieces respectively and correspondingly protrude out of the two side faces of the connecting ring, and when the connecting ring is fixedly connected with the two pipe bodies through the bolts, the elastic pieces enable the fan-shaped clamping blocks to correspondingly clamp the connection positions of the inner pipes of the two pipe bodies through the transmission triangular block and the lifting triangular block. The utility model discloses install and remove and overhaul the insulating tube conveniently.

Description

Steam insulating pipe convenient to overhaul

Technical Field

The utility model relates to a insulating tube field especially relates to a steam insulating tube convenient to overhaul.

Background

The steam heat-preservation pipe is widely applied to the field of heat supply, and after the steam heat-preservation pipe works for a long time, the inner pipe body is aged, so that the steam heat-preservation pipe can be leaked. The existing steam heat-insulating pipe is usually connected and fixed in a welding mode and difficult to disassemble, assemble and repair, so that once leakage occurs, the whole section of pipe body is often required to be replaced, and the maintenance cost is greatly improved. In order to solve the problems, the steam heat-preservation pipe convenient to overhaul is provided.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model provides a steam insulating tube convenient to overhaul, the convenience is installed and removed and is overhauld the insulating tube.

The technical scheme is as follows: in order to achieve the purpose, the steam heat-preservation pipe convenient to overhaul comprises two pipe bodies which are connected end to end and a connecting ring arranged between the end parts of the two pipe bodies; the pipe body comprises an outer pipe, an inner pipe and a heat insulation layer arranged between the outer pipe and the inner pipe; a connecting flange is fixedly arranged on the outer wall of the end part of the outer pipe, and the end surface of the inner pipe outwards protrudes out of the end surface of the outer pipe; the connecting ring is provided with a plurality of transverse through holes, the middle part of each transverse through hole is provided with a vertical hole, and a T-shaped chamber is formed at the connecting part of each transverse through hole and the corresponding vertical hole; two ends of the transverse through hole are respectively provided with two elastic pieces, and one end of each elastic piece facing the T-shaped chamber is provided with a transmission triangular block; a lifting piece is arranged in the vertical hole, and a lifting triangular block is arranged at one end of the lifting piece facing the T-shaped chamber; one end of the lifting piece, which is far away from the T-shaped chamber, is connected with a fan-shaped clamping block; the connecting ring is provided with a middle through hole, the connecting flange at one end of the pipe body is provided with a screw hole, and the connecting flange at the other end of the pipe body is provided with a connecting through hole; the fastening bolt sequentially penetrates through the connecting through hole and the middle through hole and is in threaded connection fit with the screw hole; the two elastic pieces correspondingly protrude out of two side faces of the connecting ring respectively, and a top pressing groove is formed in the end face of the outer pipe; the jacking groove and the elastic piece are correspondingly jacked, and the triangular blocks are driven to vertically move through the transmission triangular blocks, so that the fan-shaped clamping blocks correspondingly clamp the connecting parts of the inner pipes of the two pipe bodies.

Furthermore, the lifting piece comprises an outer rod and an inner rod, one end of the outer rod is connected with the lifting triangular block, the other end of the outer rod is provided with a sliding groove, and the inner rod is in sliding fit with the sliding groove; one end of the inner rod is elastically connected with the inner wall of the sliding groove through a first spring, and the other end of the inner rod is connected with the fan-shaped clamping block.

Furthermore, the elastic element comprises a transverse column in sliding fit with the transverse through hole, one end of the transverse column is connected with the transmission triangular block, an outer ring body is arranged on the outer wall of the transverse column, an inner ring body is arranged on the inner wall of the transverse through hole, and the outer ring body and the inner ring body are elastically connected through a second spring.

Furthermore, the number of the fan-shaped clamping blocks is two, and the angles of the two fan-shaped clamping blocks are smaller than 180 degrees.

Further, a heat insulation material is filled between the connecting ring and the fan-shaped clamping blocks.

Furthermore, annular sealing blocks are arranged on two sides of the connecting ring, and annular sealing grooves are correspondingly arranged on the end surface of the outer pipe; the annular sealing block is positioned between the transverse through hole and the circle center of the connecting ring.

Further, the surface of the annular sealing block is provided with a rubber sealing layer.

Has the advantages that: the steam heat-preservation pipe convenient to overhaul of the utility model connects and fixes the outer pipes of the two pipe bodies through the fastening bolts, the connecting rings and the connecting flanges, and makes the end parts of the two inner pipes relatively abut against each other; the connecting ring is provided with an elastic piece, and after the elastic piece and the end part of the outer pipe are mutually pressed, the elastic piece drives the fan-shaped clamping block to clamp the connecting part of the inner pipes of the two pipes through the transmission triangular block and the lifting triangular block, so that the inner pipes are fixed; when the pipe body needs to be disassembled for maintenance, the fastening bolt is unscrewed, and at the moment, the fan-shaped clamping blocks do not clamp the inner pipe any more, so that the inner pipe is convenient to be drawn out for repair or replacement.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic connection diagram of the tube body and the connection ring;

FIG. 3 is a schematic structural view of a tube body;

FIG. 4 is a schematic plan view of the attachment ring;

FIG. 5 is a schematic plan view of transverse and vertical perforations;

figure 6 is a cross-sectional view of the internal structure of the attachment ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The steam thermal insulation pipe convenient to overhaul as shown in the attached drawings 1 to 6 comprises two pipe bodies 1 which are connected end to end and a connecting ring 2 arranged between the end parts of the two pipe bodies 1. Two bodys 1 are for the convenience of description the utility model discloses, do not limit body 1 to only two, in practical application, insulating tube 1 comprises a plurality of end to end's body 1.

The pipe body 1 includes an outer pipe 3, an inner pipe 4, and an insulating layer 5 disposed between the outer pipe 3 and the inner pipe 4. And a connecting flange 6 is fixedly arranged on the outer wall of the end part of the outer pipe 3, and the end surface of the inner pipe 4 protrudes outwards from the end surface of the outer pipe 3. As shown in fig. 1, when two pipe bodies 1 are connected end to end, the ends of the two inner pipes 4 are abutted against each other, and a space is left between the two outer pipes 3 to accommodate the connecting ring 2.

The connecting ring 2 is provided with a plurality of transverse through holes 7, and the transverse through holes 7 extend along the axial direction of the connecting ring 2. The middle part of the transverse through hole 7 is provided with a vertical hole 8, and the vertical hole 8 extends along the radial direction of the connecting ring 2. As shown in fig. 5 and 6, the junction of the transverse perforations 7 and the vertical holes 8 forms a T-shaped chamber 9. Two ends of the transverse through hole 7 are respectively provided with two elastic pieces 10, the elastic pieces 10 face one end of the T-shaped chamber 9 and are provided with transmission triangular blocks 23, lifting pieces 11 are arranged in the vertical holes 8, and the lifting pieces 11 face one end of the T-shaped chamber 9 and are provided with lifting triangular blocks 12. As shown in fig. 5 and 6, the driving triangle block 23 and the lifting triangle block 12 are pressed against each other, and when the driving triangle block 23 moves laterally with respect to the inside of the T-shaped chamber 9, the lifting triangle block 12 is pressed toward the center of the connecting ring 2. One end of the lifting piece 11, which is far away from the T-shaped chamber 9, is connected with a fan-shaped clamping block 13, so that the fan-shaped clamping block 13 clamps and fixes the inner pipe 4.

The connecting ring 2 is provided with a middle through hole 14, the middle through hole 14 extends along the axial direction of the connecting ring 2, the connecting flange 6 at one end of the pipe body 1 is provided with a screw hole 15, and the connecting flange 6 at the other end of the pipe body 1 is provided with a connecting through hole 16. The fastening bolt 17 passes through the connecting through hole 16 and the middle through hole 14 in sequence and is in threaded connection fit with the screw hole 15. As shown in fig. 2, the fastening bolts 17 are equally angularly arranged in four to ensure the fixing effect.

The two elastic members 10 respectively protrude from two side surfaces of the connection ring 2, and a top pressing groove 18 is formed on the end surface of the outer tube 3. When the two outer pipes 3 are fixed relatively and the connecting ring 2 is clamped in the middle, the jacking groove 18 and the elastic part 10 are correspondingly jacked, so that the transmission triangular block 23 is jacked to one side close to the T-shaped chamber 9, the two transmission triangular blocks 23 drive the lifting triangular block 12 to vertically move, the lifting triangular block 12 is jacked to the circle center direction of the connecting ring 2, and the fan-shaped clamping blocks 13 correspondingly clamp the connection position of the inner pipes 4 of the two pipe bodies 1, so that the inner pipes 4 are fixed.

As shown in fig. 5 and 6, the lifting member 11 includes an outer rod 19 and an inner rod 20, one end of the outer rod 19 is connected to the lifting triangle 12, the other end of the outer rod 19 is provided with a sliding groove 21, and the inner rod 20 is slidably fitted with the sliding groove 21. One end of the inner rod 20 is elastically connected with the inner wall of the sliding groove 21 through a first spring 29, and the other end of the inner rod 20 is connected with the fan-shaped clamping block 13. The fan-shaped clamping blocks 13 have better clamping effect on the joint of the two inner pipes 4 by the arrangement of the first spring 29.

As shown in fig. 5 and 6, the elastic member 10 includes a transverse column 22 slidably engaged with the transverse through hole 7, one end of the transverse column 22 is connected to the driving triangle 23, an outer ring 24 is disposed on an outer wall of the transverse column 22, an inner ring 25 is disposed on an inner wall of the transverse through hole 7, and the outer ring 24 and the inner ring 25 are elastically connected by a second spring 26. The second spring 26 is fixedly connected to the outer ring 24 and the inner ring 25 at both ends thereof, respectively, to prevent the elastic member 10 from being separated from the transverse through hole 7.

The number of the fan-shaped clamping blocks 13 is two, and the inner arc surfaces of the fan-shaped clamping blocks 13 are attached to the outer arc surfaces of the inner tubes 4. The angle of the two fan-shaped clamping blocks 13 is less than 180 degrees, and a gap is reserved to ensure that the two fan-shaped clamping blocks 13 can clamp and fix the inner pipe 4.

And a heat insulation material is filled between the connecting ring 2 and the fan-shaped clamping blocks 13, the heat insulation material is shown as a fan-shaped part 30 in figure 4, and the heat insulation material is fixedly connected with the inner annular surface of the connecting ring 2.

As shown in fig. 2, two sides of the connection ring 2 are provided with annular sealing blocks 27, and an end surface of the outer tube 3 is correspondingly provided with an annular sealing groove 28; the annular sealing block 27 is located between the transverse bore 7 and the centre of the connecting ring 2. The sealing performance between the outer tube 3 and the connecting ring 2 is improved.

The surface of the annular sealing block 27 is provided with a rubber sealing layer, so that the sealing performance between the outer tube 3 and the connecting ring 2 is further improved.

The working principle of the utility model is as follows: when the two pipe bodies 1 are assembled, the outer pipes 3 of the two pipe bodies 1 are connected and fixed through the fastening bolts 17, the connecting rings 2 and the connecting flanges 6, and the end parts of the two inner pipes 4 are relatively abutted; when the two outer pipes 3 are fixed relatively and the connecting ring 2 is clamped in the middle, the jacking groove 18 and the elastic part 10 are correspondingly jacked, so that the transmission triangular block 23 is jacked to one side close to the T-shaped chamber 9, the two transmission triangular blocks 23 drive the lifting triangular block 12 to vertically move, the lifting triangular block 12 is jacked to the circle center direction of the connecting ring 2, and the fan-shaped clamping blocks 13 correspondingly clamp the connection position of the inner pipes 4 of the two pipe bodies 1, so that the inner pipes 4 are fixed. When the pipe body 1 needs to be disassembled for maintenance, the fastening bolt 17 is unscrewed, and the fan-shaped clamping blocks 13 do not clamp the inner pipe 4 any more, so that the inner pipe 4 is convenient to be drawn out for repair or replacement.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a steam insulating tube convenient to overhaul which characterized in that: comprises two pipe bodies (1) which are connected end to end and a connecting ring (2) arranged between the end parts of the two pipe bodies (1);

the pipe body (1) comprises an outer pipe (3), an inner pipe (4) and a heat-insulating layer (5) arranged between the outer pipe (3) and the inner pipe (4); a connecting flange (6) is fixedly arranged on the outer wall of the end part of the outer pipe (3), and the end surface of the inner pipe (4) protrudes outwards from the end surface of the outer pipe (3);

a plurality of transverse through holes (7) are formed in the connecting ring (2), a vertical hole (8) is formed in the middle of each transverse through hole (7), and a T-shaped chamber (9) is formed at the joint of each transverse through hole (7) and each vertical hole (8); two ends of the transverse through hole (7) are respectively provided with two elastic pieces (10), and one end of each elastic piece (10) facing the T-shaped chamber (9) is provided with a transmission triangular block (23); a lifting piece (11) is arranged in the vertical hole (8), and a lifting triangular block (12) is arranged at one end, facing the T-shaped chamber (9), of the lifting piece (11); one end of the lifting piece (11) far away from the T-shaped chamber (9) is connected with a fan-shaped clamping block (13);

a middle through hole (14) is formed in the connecting ring (2), a screw hole (15) is formed in the connecting flange (6) at one end of the pipe body (1), and a connecting through hole (16) is formed in the connecting flange (6) at the other end of the pipe body (1); the fastening bolt (17) sequentially penetrates through the connecting through hole (16) and the middle through hole (14) and is in threaded connection fit with the screw hole (15);

the two elastic pieces (10) respectively and correspondingly protrude out of two side faces of the connecting ring (2), and a top pressing groove (18) is formed in the end face of the outer tube (3); the jacking groove (18) and the elastic piece (10) are correspondingly jacked, and the lifting triangular blocks (12) are driven to vertically move through the transmission triangular blocks (23), so that the fan-shaped clamping blocks (13) correspondingly clamp the connection part of the inner pipes (4) of the two pipe bodies (1).

2. The steam insulated pipe convenient for maintenance of claim 1, wherein: the lifting piece (11) comprises an outer rod (19) and an inner rod (20), one end of the outer rod (19) is connected with the lifting triangular block (12), the other end of the outer rod (19) is provided with a sliding groove (21), and the inner rod (20) is in sliding fit with the sliding groove (21); one end of the inner rod (20) is elastically connected with the inner wall of the sliding groove (21) through a first spring (29), and the other end of the inner rod (20) is connected with the fan-shaped clamping block (13).

3. The steam insulated pipe convenient for maintenance of claim 2, wherein: the elastic piece (10) comprises a transverse column (22) in sliding fit with the transverse through hole (7), one end of the transverse column (22) is connected with the transmission triangular block (23), an outer ring body (24) is arranged on the outer wall of the transverse column (22), an inner ring body (25) is arranged on the inner wall of the transverse through hole (7), and the outer ring body (24) and the inner ring body (25) are elastically connected through a second spring (26).

4. The steam insulated pipe convenient for overhaul according to claim 3, wherein: the number of the fan-shaped clamping blocks (13) is two, and the angles of the two fan-shaped clamping blocks (13) are smaller than 180 degrees.

5. The steam insulated pipe convenient for overhaul according to claim 4, wherein: and a heat insulation material is filled between the connecting ring (2) and the fan-shaped clamping block (13).

6. The steam insulated pipe convenient for maintenance of claim 1, wherein: annular sealing blocks (27) are arranged on two sides of the connecting ring (2), and annular sealing grooves (28) are correspondingly arranged on the end surface of the outer pipe (3); the annular sealing block (27) is positioned between the transverse through hole (7) and the center of the connecting ring (2).

7. The steam insulated pipe convenient for overhaul according to claim 6, wherein: the surface of the annular sealing block (27) is provided with a rubber sealing layer.