CN216520238U - Spraying winding hot oil line compensation arrangement - Google Patents

Abstract

The invention provides a spraying and winding heat-insulating pipeline compensation device which comprises a movable pipe and a fixed pipe, wherein one end of the movable pipe is movably inserted into the fixed pipe, the movable pipe and the fixed pipe form an annular packing space at the inserting position, a conical surface sealing assembly and a packing are arranged in the annular packing space, a push ring is correspondingly arranged at the outer end of the annular packing space, and the fixed pipe is provided with a pushing mechanism for driving the push ring to move axially. In this design, the flexible deformation that produces of pipeline thermal energy is compensated automatically in movable pipe and the activity of fixed pipe is pegged graft, and the setting of the spring is guaranteed to last the pretightning force to packing and conical surface seal assembly among the pushing mechanism, solves the packing wearing and tearing and leads to the sealed inefficacy problem.

Description

Spraying winding hot oil line compensation arrangement

Technical Field

The invention belongs to the field of production of spraying and winding thermal insulation pipelines, and particularly relates to a compensation device for a spraying and winding thermal insulation pipeline.

Background

In the urban heating process, the pipeline for heat supply usually adopts a spraying winding heat preservation pipeline, in order to eliminate the adverse effect of thermal expansion and cold contraction deformation on the heat preservation pipeline, the heat preservation pipeline is correspondingly provided with a compensator, and the side effect caused by thermal expansion is reduced by installing the compensator.

The existing compensator is divided into two structures, one is a compensator with a corrugated pipe structure, the other is a compensator with a packing structure, and in the compensator with the packing structure, packing abrasion is caused after long-time operation, so that sealing failure is caused, therefore, the packing is required to be maintained regularly for the compensator, and inconvenience is brought to production.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a compensation device for a sprayed and wound thermal insulation pipeline, so as to automatically compensate for the deformation generated by thermal expansion and contraction of the pipeline, thereby improving the working performance of the sprayed and wound thermal insulation pipeline.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides a spraying winding hot oil line compensation arrangement, includes movable tube and fixed pipe, movable tube one end activity inserts in the fixed pipe, movable tube and fixed pipe form the annular packing space in the grafting position, are equipped with conical surface seal assembly in this annular packing space, and the annular packing space is around respectively packing at conical surface seal assembly left and right side position department has the packing, and annular packing space inner corresponds there is the spacing ring, and the spacing ring is fixed in the fixed pipe, and annular packing space outer end corresponds there is the throw-out collar, and throw-out collar and spacing ring sticiss packing and conical surface seal assembly, and the fixed pipe is equipped with drive throw-out collar axial displacement's pushing mechanism.

Further, the pushing mechanism comprises a sliding sleeve sleeved at the outer end of the movable pipe, the inner end of the sliding sleeve is fixedly connected with the pushing ring, a first flange is arranged on the sliding sleeve, a second flange is arranged on the fixed pipe, a distance is reserved between the first flange and the second flange, the first flange and the second flange are connected through a bolt, and the bolt is sleeved with a spring at the outer end of the second flange.

Furthermore, the outer end of the sliding sleeve is inwards protruded with a convex ring, the outer surface of the movable tube is provided with a shaft shoulder corresponding to the convex ring, and the convex ring and the shaft shoulder form an anti-falling structure.

Furthermore, a sealing ring corresponding to the movable pipe is arranged in the convex ring.

Further, the push ring is provided with a sealing ring corresponding to the fixed pipe.

Furthermore, the conical surface sealing assembly comprises a positioning ring and sealing rings respectively arranged on the left side and the right side of the positioning ring, the sealing rings are in sealing connection with the positioning ring through conical surfaces arranged in a matching mode, and the conical surfaces of the left end and the right end of the positioning ring are parallel.

Furthermore, the positioning ring is a metal ring, and the sealing ring is a hard rubber ring.

Compared with the prior art, the spray-coating winding heat-insulation pipeline compensation device has the following advantages:

(1) in this design, the activity of movable pipe and fixed pipe is pegged graft, can compensate automatically to the flexible deformation that produces of pipeline thermal energy, packing and the sealed effect of conical surface seal assembly in the annular packing space are guaranteed in the setting of thrust collar and advancing mechanism, the thrust that the thrust collar lasts is guaranteed in the setting of advancing mechanism spring, guarantee to last the pretightning force to packing and conical surface seal assembly, solve the packing wearing and tearing and lead to sealed failure problem, guarantee the sealed effect of this compensator, guarantee spraying winding insulating tube safety and stability operation.

(2) In this design, conical surface seal assembly's position ring correspondence has two sealing rings, passes through conical surface sealing connection between two sealing rings and the position ring respectively, and two conical surface parallel arrangement of holding ring, both can realize the movable tube and fix the sealed between the pipe through a holding ring and two sealing rings, guarantee sealed effect, save space, improve this compensator practicality.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a front view of a spray-wound thermal insulation pipeline compensation device according to the present embodiment;

FIG. 2 is a structural diagram of a compensation device for a sprayed and wound thermal insulation pipeline according to the present embodiment;

description of reference numerals:

1-a movable tube; 11-shaft shoulder; 2-fixing the tube; 22-a second flange; 3, sliding sleeve; 31-a convex ring; 32-a first flange; 4-a spring; 5-bolt; 6-push ring; 7-a conical surface sealing assembly; 71-a positioning ring; 72-a sealing ring; 8-a limit ring; 9-packing.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

As shown in fig. 1, 2, a spraying winding insulating tube compensation arrangement, including activity pipe 1 and fixed pipe 2, 1 one end activity of activity pipe is inserted in fixed pipe 2, both the activity pipe 2 can remove to fixed pipe 1 axial relatively, activity pipe 1 and fixed pipe 2 form the annular packing space in the position of pegging graft, be equipped with conical surface seal assembly 7 in this annular packing space, the annular packing space is around 7 left sides of conical surface seal assembly, right side position department twines respectively and is filled packing 9, packing 9 is preferred graphite packing in this embodiment, satisfy spraying winding insulating tube high temperature operation environment demand. The inner end of the annular packing space corresponds to a limiting ring 8, the limiting ring 8 is fixed in the fixed pipe 2, the outer end of the annular packing space corresponds to a push ring 6, the push ring 6 is provided with a sealing ring corresponding to the fixed pipe 2, and external impurities are prevented from entering the annular packing space through a gap between the push ring 6 and the fixed pipe 2. The packing 9 and the conical surface sealing component 7 are tightly pressed and fixed by the push ring 6 and the limit ring 8, and the fixed pipe 2 is provided with a pushing mechanism for driving the push ring 6 to move axially.

In this embodiment, advancing mechanism includes that 1 outer end of movable tube is the sliding sleeve 3 of the one end suit that this movable tube 1 exposes fixed pipe 2 promptly, and 3 suits of sliding sleeve are outside movable tube 1, and 3 inner both just to fixed pipe 2's one end and push away 6 fixed connection of ring sliding sleeve, and fixed pipe 2 is being equipped with second flange 22 with the movable tube corresponding end, be equipped with first flange 32 on the sliding sleeve 3, first flange 32 and second flange 22 just to and first, leave the certain distance between the second flange, connect through bolt 5 between first flange 32 and the second flange 22, and this bolt 5 is equipped with spring 4 in second flange 22 outer end position department cover. The preferred structure is that the nut of bolt 5 is just to second flange 22 setting, leaves the distance between this nut and second flange 22, and the screw rod of bolt 5 matches the nut after passing second flange 22 and first flange 32, and bolt 5 overlaps in second flange 22 outside position department and is equipped with spring 4. In the structure, the spring 4 provides acting force for the packing 9 and the conical surface sealing component 7 on the one hand, and the sealing effect of the packing and the conical surface sealing component 7 is ensured. On the other hand, the spring 4 can exert continuous effort to the throw-out collar 6, guarantees the throw-out collar 6 to the continuous effort of packing 9 and conical surface seal assembly 7 in the annular packing space, remedies the wearing and tearing that packing 9 and conical surface seal assembly caused because the movable tube slides, prevents to reveal, effectively reaches sealedly.

In this embodiment, 3 outer ends of sliding sleeve are inwards projected to have bulge loop 31, are equipped with the sealing washer that corresponds with activity pipe 1 in the bulge loop 31, prevent that external impurity from getting into annular packing space pollution packing by the clearance between sliding sleeve 3 and the activity pipe 1. The outer surface of the movable tube 1 is provided with a shaft shoulder 11 corresponding to the convex ring 31, and the convex ring 31 and the shaft shoulder 11 form an anti-falling structure to prevent the movable tube 1 from falling off. When this compensator is installed, fixed pipe 2 and movable tube 1 respectively with two articulate connections of pipeline, 4 compression capacities of adjustment spring guarantee under the 6 effects of push ring packing 9 and conical surface seal assembly 7 to the movable tube 1 with fixed sealing between 2, leave the certain distance between bulge loop 31 and the shaft shoulder 11 during the installation, guarantee the pipeline deformation demand.

In this embodiment, the conical surface sealing assembly 7 includes a positioning ring 71 and sealing rings 72 respectively disposed on left and right sides of the positioning ring 71, the positioning ring 71 is preferably a metal ring, and the sealing rings 72 are preferably high temperature resistant hard rubber rings. The sealing ring 72 is connected with the positioning ring 71 in a sealing way through matching conical surfaces, and the left and right conical surfaces of the positioning ring 71 are parallel. In this structural design, a holding ring 71 corresponds two sealing rings 72, and two sealing rings 72 are separately sealed with the conical surface of holding ring 71 formation, because two conical sealing faces are parallel, can form seal structure between holding ring 71 and activity pipe 1, holding ring 71 and fixed pipe 2 respectively, two upper and lower seal structure to the holding ring formation that is to say, improve sealed effect between activity pipe 1 and the fixed pipe 2, and then improve the sealed effect of this compensator.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims (7)

1. The utility model provides a spraying winding hot oil line compensation arrangement which characterized in that: including movable tube (1) and fixed pipe (2), movable tube (1) one end activity is inserted in fixed pipe (2), movable tube (1) and fixed pipe (2) form annular packing space in the grafting position, be equipped with conical surface seal assembly (7) in this annular packing space, annular packing space is on a left side of conical surface seal assembly (7), right side position department twines respectively and is filled packing (9), annular packing space inner corresponds spacing ring (8), spacing ring (8) are fixed in fixed pipe (2), annular packing space outer end corresponds has push ring (6), push ring (6) and spacing ring (8) sticis packing (9) and conical surface seal assembly (7), fixed pipe (2) are equipped with drive push ring (6) axial displacement's thrust gear.

2. The spray-wound thermal insulation pipeline compensation device according to claim 1, wherein: the pushing mechanism comprises a sliding sleeve (3) sleeved at the outer end of the movable pipe (1), the inner end of the sliding sleeve (3) is fixedly connected with a pushing ring (6), a first flange (32) is arranged on the sliding sleeve (3), a second flange (22) is arranged on the fixed pipe (2), a distance is reserved between the first flange (32) and the second flange (22), the first flange (32) and the second flange (22) are connected through a bolt (5), and the bolt (5) is sleeved with a spring (4) at the position of the outer end of the second flange (22).

3. The spray-wound thermal insulation pipeline compensation device according to claim 2, wherein: the outer end of the sliding sleeve (3) is inwards protruded with a convex ring (31), the outer surface of the movable tube (1) is provided with a shaft shoulder (11) corresponding to the convex ring (31), and the convex ring (31) and the shaft shoulder (11) form an anti-falling structure.

4. The spray-wound thermal insulation pipeline compensation device according to claim 3, wherein: and a sealing ring corresponding to the movable pipe (1) is arranged in the convex ring (31).

5. The spray-wound thermal insulation pipeline compensation device according to claim 1, wherein: the push ring (6) is provided with a sealing ring corresponding to the fixed pipe (2).

6. The spray-wound thermal insulation pipeline compensation device according to claim 1, wherein: the conical surface sealing assembly (7) comprises a positioning ring (71) and sealing rings (72) arranged on the left side and the right side of the positioning ring (71), the sealing rings (72) are in sealing connection with the positioning ring (71) through conical surfaces arranged in a matching mode, and the conical surfaces of the left end and the right end of the positioning ring (71) are parallel.

7. The spray-wound thermal insulation pipeline compensation device according to claim 6, wherein: the positioning ring (71) is a metal ring, and the sealing ring (72) is a hard rubber ring.

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