CN216590529U

CN216590529U - Novel self-balancing axial compensator

Info

Publication number: CN216590529U
Application number: CN202122317242.1U
Authority: CN
Inventors: 张金鑫; 张学飞; 王珍; 房中; 陈曦; 陈龙
Original assignee: China Chemical South Construction Investment Co ltd
Current assignee: China Chemical South Construction Investment Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-05-24
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a novel self-balancing axial compensator which comprises an outer sleeve, an inner sleeve, an outer nut, an inner nut, a spring, a gasket and a countersunk bolt, wherein the outer sleeve is of a cylindrical circular tube structure, an L-shaped step is arranged on one end surface of the outer sleeve, the non-reducing end of the inner sleeve is inserted into the inner end of the outer sleeve, an annular groove is formed in the circumferential direction of the non-reducing end of the inner sleeve, and a steel ball is placed in the annular groove. This novel self-balancing axial compensator has set up the steel ball structure through on the basis of suit for outer tube and interior sleeve pipe possess good axiality, and can effectively reduce frictional resistance, increase of service life, this device not only axial compensation volume is big, and sealing performance is superior, and the connecting rod system that constitutes through the spring moreover can effectively balance the inside produced thrust of medium, and simple structure is reasonable, convenient operation, easy processing, and is with low costs, is fit for wideling popularize.

Description

Novel self-balancing axial compensator

Technical Field

The utility model relates to the technical field of a heat distribution pipeline compensation device, in particular to a novel self-balancing axial compensator.

Background

The thermal power pipeline inevitably causes expansion and contraction of the pipeline due to the difference of the working temperature and the ambient temperature of the transmission medium or the temperature change of the transmission medium, the expansion and contraction of the pipeline deform to generate axial thrust, and the thrust generates potential safety hazards to the normal operation of the pipeline.

At present, the following compensation methods are common for pipelines: pi-shaped bend natural compensation, a spherical compensator, a sleeve compensator, a ripple compensator, and a rotation compensator. When the pi-shaped bend is used for large pipeline compensation, the occupied area is large, the medium pressure loss is serious, and the investment cost is high; the spherical compensator is expensive due to high processing precision, and domestic manufacturers cannot ensure good working performance; although the sleeve compensator has large compensation amount, the sleeve compensator has poor sealing and cannot bear the blind plate force generated by medium pressure, and a fixed support must be additionally arranged in a pipeline, so that additional investment is increased; the corrugated compensator has large compensation amount and can bear the blind plate force generated by medium pressure, but the corrugated pipe is easy to be unstable after being subjected to tension and compression for a long time; the rotary compensator has the advantages of superior performance, large compensation amount and flexible arrangement, but needs to occupy a certain space during installation, and each group of compensators need to be provided with a drain valve, thereby increasing the manufacturing cost and the pressure loss of a pipe network. Therefore, a novel self-balancing axial compensator is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a novel self-balancing axial compensator, which is characterized in that an outer sleeve and an inner sleeve have good coaxiality, the friction resistance can be effectively reduced, the service life is prolonged, the axial compensation amount of the compensator is large, the sealing performance is excellent, a connecting rod system formed by springs can effectively balance the thrust generated in a medium, the structure is simple and reasonable, the operation is convenient, the processing is easy, the cost is low, and the compensator is suitable for being widely popularized.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a novel self-balancing axial compensator, includes the outer tube, still includes interior sleeve pipe, outer nut, interior nut, spring, gasket and countersunk bolt, the outer tube is the column pipe structure, and an outer tube terminal surface is provided with L type step, the inner of outer tube is inserted to interior sheathed tube non-reducing end, the circumferencial direction of interior sleeve pipe non-reducing end is provided with annular groove, the steel ball has been placed to annular groove inside, outer tube lateral wall welding has fixed plate A and fixed plate B, the tip of outer tube and fixed plate B can be dismantled through countersunk bolt and be connected with the gland flange, the gland flange is the ring structure that the cross-section is L shape, it has stud to run through on fixed plate A and the fixed plate B, stud links into a whole through outer nut, interior nut and gasket and fixed plate A and fixed plate B, the welding has fixed plate C on the periphery of interior sheathed tube reducing end, the outer sleeve lateral wall install the fly leaf, the fly leaf be the ring structure of rectangle for the cross-section, spring one end and fixed plate B weld, the spring other end and fly leaf weld.

Furthermore, a sealing element is arranged between the inner wall of the outer sleeve and the outer wall of the inner sleeve; the sealing element is positioned in a space enclosed by the flange gland, the inner wall of the outer sleeve and the outer wall of the inner sleeve and is respectively in a propping state with each side; the sealing element has a rectangular cross section, can bear high temperature and high pressure of a medium under the action of the flange gland and the countersunk head bolt, prevents the medium from not leaking, and ensures the safe operation of the device.

Further, the inner sleeve is of a cylindrical integrated reducing pipe structure; interior sleeve pipe is the reducing tubular construction of cylindric integral type, and the internal diameter of this pipeline reducing end is greater than the internal diameter of non-reducing end, and the internal diameter is big promptly for the reducing end, and the internal diameter is little for the non-reducing end, and the reducing end links into an organic whole structure through one section excessive radian of directness with the non-reducing end, and this structure also can play the effect of water conservancy diversion.

Furthermore, the outer diameter of the outer sleeve is the same as the outer diameter of the variable-diameter end of the inner sleeve, and the inner diameter of the outer sleeve is the same as the outer diameter of the non-variable-diameter end of the inner sleeve and the inner diameter of the variable-diameter end of the inner sleeve; the sizes of the pipelines at the two ends of the inner sleeve and the outer sleeve are the same, and when the inner sleeve and the outer sleeve are installed in the pipeline to play a compensation function, reducing elements do not need to be added, so that the installation investment cost can be effectively saved.

Compared with the prior art, the utility model has the following beneficial effects: under the action of medium pressure P (positive pressure), a force F1 is generated on a section S1 at the left end of the outer sleeve 1, a force F2 is generated on a section S2 at the right end of the inner sleeve, through a link mechanism provided with a spring, under the action of F1, the spring is compressed leftwards through a fixed plate B, under the action of F2, the spring is compressed rightwards through a fixed plate A and a movable plate, so that the spring generates a force F3 and a reaction force F4 at the left and right ends of the spring respectively, F1 and F2 are balanced, and self pressure balance is realized as long as F1 ═ F2 ═ F3 ═ F4 is ensured; the steel ball structure is arranged on the basis of sleeving, so that the outer sleeve and the inner sleeve have good coaxiality, the friction resistance can be effectively reduced, and the service life is prolonged; the device has the advantages of large axial compensation amount, excellent sealing performance, simple and reasonable structure, convenience in operation, easiness in processing, low cost and suitability for large-force popularization, and a connecting rod system formed by the springs can effectively balance the thrust generated in the medium.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a novel self-balancing axial compensator according to the present invention.

In the figure: 1. an outer sleeve; 2. an inner sleeve; 3. fixing a plate A; 4. a fixing plate B; 5. A fixing plate C; 6. a movable plate; 7. a stud; 8. an outer nut; 9. an inner nut; 10. A spring; 11. a gasket; 12. a seal member; 13. a steel ball; 14. a flange gland; 15. A countersunk head bolt.

Detailed Description

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

As shown in fig. 1, a novel self-balancing axial compensator comprises an outer sleeve 1, and further comprises an inner sleeve 2, an outer nut 8, an inner nut 9, a spring 10, a gasket 11 and a countersunk bolt 15, wherein the outer sleeve 1 is of a cylindrical round tube structure, and one end surface of the outer sleeve 1 is provided with an L-shaped step, the non-reducing end of the inner sleeve 2 is inserted into the inner end of the outer sleeve 1, the circumferential direction of the non-reducing end of the inner sleeve 2 is provided with an annular groove, a steel ball 13 is placed in the annular groove, the outer side wall of the outer sleeve 1 is welded with a fixing plate A3 and a fixing plate B4, the end portions of the outer sleeve 1 and the fixing plate B4 are detachably connected with a gland flange 14 through the countersunk bolt 15, the gland flange 14 is of an L-shaped annular structure, a stud 7 is inserted on the fixing plate A3 and the fixing plate B4, and the stud 7 passes through the outer nut 8, the outer nut 9 and the countersunk bolt 15, The inner nut 9 and the gasket 11 are connected with a fixed plate A3 and a fixed plate B4 to form a whole, a fixed plate C5 is welded on the circumferential surface of the reducing end of the inner sleeve 2, a movable plate 6 is installed on the outer side wall of the outer sleeve 1, the movable plate 6 is of a circular ring structure with a rectangular cross section, one end of the spring 10 is welded with the fixed plate C5, and the other end of the spring 10 is welded with the movable plate 6.

A sealing element 12 is arranged between the inner wall of the outer sleeve 1 and the outer wall of the inner sleeve 2; the sealing element 12 is positioned in a space enclosed by the flange gland 14, the inner wall of the outer sleeve 1 and the outer wall of the inner sleeve 2 and is respectively in a propping state with each side; the sealing element 12 has a rectangular cross section, and can bear high temperature and high pressure of a medium under the action of the flange gland 14 and the countersunk head bolt 15, so that the medium is prevented from leaking, and the safe operation of the device is ensured.

The inner sleeve 2 is of a cylindrical integrated reducing pipe structure; interior sleeve pipe 2 is the reducing tubular construction of cylindric integral type, and the internal diameter of this pipeline reducing end is greater than the internal diameter of non-reducing end, and the internal diameter is big promptly for the reducing end, and the internal diameter is little for the non-reducing end, and the reducing end links into an organic whole structure through one section excessive radian of directness with the non-reducing end, and this structure also can play the effect of water conservancy diversion.

The outer diameter of the outer sleeve 1 is the same as the outer diameter of the variable diameter end of the inner sleeve 2, and the inner diameter of the outer sleeve 1 is the same as the outer diameter of the non-variable diameter end of the inner sleeve 2 and the inner diameter of the variable diameter end of the inner sleeve 2; the sizes of the pipelines at the two ends of the inner sleeve 2 and the outer sleeve 1 are the same, and when the inner sleeve is installed in the pipeline to play a compensation function, reducing elements do not need to be added, so that the installation investment cost can be effectively saved.

It should be noted that, in the present invention, when the novel self-balancing axial compensator works, under the action of medium pressure P (positive pressure), a acting force F1 is generated on a section S1 at the left end of the outer sleeve 1, and a acting force F2 is generated on a section S2 at the right end of the inner sleeve 2, through a link mechanism provided with the spring 10, under the action of F1, the spring 10 is compressed leftward through the fixed plate B5, and under the action of F2, the spring 10 is compressed rightward through the fixed plate A3 and the movable plate 6, so that the spring generates an acting force F3 and a reaction force F4(F3 ═ F4) at the left and right ends respectively, and if F1 and F2 are to be balanced, as long as it is ensured that F1 ═ F2 ═ F35 3 ═ F4, self pressure balance is achieved; the steel ball structure is arranged on the basis of sleeving, so that the outer sleeve 1 and the inner sleeve 2 have good coaxiality, the friction resistance can be effectively reduced, and the service life is prolonged; the device has the advantages of large axial compensation amount, excellent sealing performance, simple and reasonable structure, convenience in operation, easiness in processing, low cost and suitability for large-force popularization, and a connecting rod system formed by the springs 10 can effectively balance the thrust generated in the medium.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel self-balancing axial compensator, includes outer tube (1), its characterized in that: still include interior sleeve pipe (2), outer nut (8), interior nut (9), spring (10), gasket (11) and countersunk bolt (15), outer tube (1) is the cylindrical pipe structure, and outer tube (1) terminal surface is provided with L type step, the inner of outer tube (1) is inserted to the non-reducing end of interior sleeve pipe (2), the circumferencial direction of interior sleeve pipe (2) non-reducing end is provided with the annular groove, steel ball (13) have been placed to the annular groove inside, outer tube (1) lateral wall welding has fixed plate A (3) and fixed plate B (4), the tip of outer tube (1) and fixed plate B (4) can be dismantled through countersunk bolt (15) and be connected with gland flange (14), gland flange (14) are the ring structure of L shape for the cross-section, stud (7) have been inserted on fixed plate A (3) and the fixed plate B (4), stud (7) connect into a whole through outer nut (8), interior nut (9) and gasket (11) and fixed plate A (3) and fixed plate B (4), the welding has fixed plate C (5) on the periphery of the reducing end of interior sleeve pipe (2), fly leaf (6) are installed to outer tube (1) lateral wall, fly leaf (6) be the ring structure of rectangle for the cross-section, spring (10) one end welds with fixed plate C (5), the spring (10) other end welds with fly leaf (6).

2. The novel self-balancing axial compensator according to claim 1, characterized in that: and a sealing element (12) is arranged between the inner wall of the outer sleeve (1) and the outer wall of the inner sleeve (2).

3. The novel self-balancing axial compensator according to claim 1, characterized in that: the inner sleeve (2) is of a cylindrical integrated reducing pipe structure.

4. The novel self-balancing axial compensator according to claim 1, characterized in that: the outer diameter of outer tube (1) is the same with the outer diameter of interior sleeve pipe (2) reducing end, the inner diameter of outer tube (1) is the same with the outer diameter of interior sleeve pipe (2) non-reducing end and the inner diameter of interior sleeve pipe (2) reducing end.