Corrugated compensator for high-pressure heat exchanger

Abstract

The utility model provides a corrugated compensator for a high-pressure heat exchanger, which relates to the technical field of compensator equipment, and comprises a corrugated connecting pipe, and flange plates are arranged at the front end and the rear end of the corrugated connecting pipe; four pull rods are arranged between the two flange plates; two connecting pieces are arranged on a pull rod, a positioning block and a positioning groove can be stably clamped through sliding fit of a spline sleeve and a spline cylinder and the springback effect of a compression spring, the self-locking process of a locking nut is achieved, the phenomenon that the locking nut is loosened due to overheating is effectively avoided, the connecting and using reliability of the compensator is improved, and the service life of the compensator is prolonged. The corrugated compensator solves the problems that when an existing corrugated compensator for the high-pressure heat exchanger is used, due to the fact that a pull rod continues the traditional nut connecting and fixing technology all the time, when the environment is too hot or heat exchanger equipment vibrates, the pull rod will loosen even though the pull rod has the auxiliary fastening effect of a cushion disc; and the use reliability of the compensator is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compensator equipment, in particular to a corrugated compensator for a high-pressure heat exchanger. Background Art

[0002] The compensator of a heat exchanger is a mechanical compensation device for a heat pipeline or a cooling pipeline. Due to the continuous change of temperature, which will cause the expansion and contraction of the pipeline, the compensator can automatically adjust the length of the pipeline according to the change of the pipeline expansion and contraction, ensuring the normal operation of the pipeline.

[0003] When the existing corrugated compensator for a high-pressure heat exchanger is in use, since the pull rod has always continued the traditional nut connection and fixing technology, loosening will occur under the action of overheating of the environment or the vibration of the heat exchanger equipment itself. Although there is the auxiliary fastening effect of the cushion plate, loosening will still occur, thereby reducing the reliability of the compensator during use. Moreover, due to the thermal expansion and contraction caused by the temperature change, the generated thermal stress will deform the corrugated connecting pipe, affecting the sealing stability thereof. Summary of the Utility Model

[0004] An embodiment of the present disclosure relates to a corrugated compensator for a high-pressure heat exchanger. By the sliding fit of a spline sleeve and a spline cylinder, and by utilizing the resilience of a compression spring, the positioning block can be stably clamped with the positioning groove, realizing the self-locking process of the locking nut, effectively avoiding the overheating and loosening phenomenon of the locking nut, and improving the reliability of the connection and use of this compensator.

[0005] In the first aspect of the present disclosure, there is provided a corrugated compensator for a high-pressure heat exchanger, specifically including: a corrugated connecting pipe, with flange plates provided at both front and rear ends of the corrugated connecting pipe; four pull rods are provided between the two flange plates, and the four pull rods are distributed in a circular array; two connectors are provided on the pull rod, and the connectors are matched with the flange plates; locking nuts are installed at both front and rear ends of the pull rod by means of threads, and the locking nuts are in contact with the connectors; fixed rings are provided at both front and rear ends of the inner peripheral surface of the corrugated connecting pipe; three first connecting rods and a second connecting rod are provided between the two fixed rings, and the first connecting rod is connected with the second connecting rod;

[0006] Four connecting frames are provided on the outer peripheral surface of the flange plate, and the connecting frames correspond to the pull rods. A spline cylinder is provided on one side of the connecting frame, and the pull rod penetrates through the spline cylinder.

[0007] In at least some embodiments, the connector includes an adjusting ring, a spline sleeve, a compression spring, and a positioning groove. A spline sleeve is provided on one side of the adjusting ring, and the adjusting ring and the spline sleeve are slidably sleeved on the pull rod. A compression spring is sleeved on the spline sleeve. A positioning groove is opened on the other side of the adjusting ring, and the positioning grooves are distributed in a circular array.

[0008] In at least some embodiments, a positioning block is provided on one side of the locking nut, and the positioning blocks are distributed in an annular array, and the positioning blocks are matched with the positioning grooves.

[0009] In at least some embodiments, when the locking nut and the pull rod are in a locked state, the spline sleeve is slidably inserted into the spline cylinder, and the compression spring is supported between the adjusting ring and the connecting frame, and the positioning block is engaged with the positioning groove.

[0010] In at least some embodiments, three connecting blocks are provided on the inner peripheral surface of the fixed ring, and the three connecting blocks are distributed in an annular array, and limiting card slots are formed on the connecting blocks.

[0011] In at least some embodiments, a first fixing plate is provided at one end of the first connecting rod, the first connecting rod passes through the limiting card slot, and the first fixing plate is in contact with the connecting block. A support ring is provided at the other end of the first connecting rod, and a restoring spring is sleeved on the first connecting rod.

[0012] In at least some embodiments, a second fixing plate is provided at one end of the second connecting rod, the second connecting rod passes through the limiting card slot, and the second fixing plate is in contact with the connecting block. A limiting sleeve is provided at the other end of the second connecting rod, the first connecting rod slidably penetrates through the bottom wall of the limiting sleeve, and the restoring spring is supported between the bottom wall of the limiting sleeve and the support ring.

[0013] The utility model provides a corrugated compensator for a high-pressure heat exchanger, which has the following beneficial effects:

[0014] In the utility model, a connecting member is provided. Through the sliding cooperation of the spline sleeve and the spline cylinder, and by utilizing the rebounding effect of the compression spring, the positioning block can be stably engaged with the positioning groove, realizing the self-locking process of the locking nut, effectively avoiding the phenomenon of overheating and loosening of the locking nut, and improving the reliability of the connection and use of the compensator.

[0015] In addition, since there are two fixed rings in the corrugated connecting pipe, three groups of first connecting rods and second connecting rods are arranged between the fixed rings. Through the sliding cooperation of the first connecting rod and the limiting sleeve, and by utilizing the elastic effect of the restoring spring, the thermal expansion and contraction of the corrugated connecting pipe caused by temperature changes are avoided, and the deformation caused by the thermal stress generated therein is eliminated, thereby ensuring the stability of the use of the corrugated connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings of the embodiments will be briefly introduced below.

[0017] The accompanying drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0018] In the accompanying drawings:

[0019] Figure 1 Shows the overall axonometric perspective structural schematic diagram of the present application;

[0020] Figure 2 Shows the exploded state structural schematic diagram of the flange, tie rod, connecting piece and locking nut of the present application;

[0021] Figure 3 Shows the Figure 2 Enlarged structural schematic diagram of part A in;

[0022] Figure 4 Shows the structural schematic diagram of the connecting piece of the present application;

[0023] Figure 5 Shows the structural schematic diagram of the fixing ring, first connecting rod and second connecting rod of the present application;

[0024] Figure 6 Shows the Figure 5 Exploded state structural schematic diagram led out.

[0025] List of reference numerals:

[0026] 1. Corrugated connecting pipe; 2. Flange; 201. Connecting frame; 202. Spline cylinder; 3. Tie rod; 4. Connecting piece; 401. Adjusting ring; 402. Spline sleeve; 403. Compression spring; 404. Positioning groove; 5. Locking nut; 501. Positioning block; 6. Fixing ring; 601. Connecting block; 602. Limit card slot; 7. First connecting rod; 701. First fixing plate; 702. Support ring; 703. Recovery spring; 8. Second connecting rod; 801. Second fixing plate; 802. Limit sleeve frame. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0028] Embodiment 1: Please refer to Figures 1 to 6 :

[0029] The utility model provides a corrugated compensator for a high-pressure heat exchanger, comprising: a corrugated connecting pipe 1, with flange plates 2 provided at both front and rear ends of the corrugated connecting pipe 1; four tie rods 3 are provided between the two flange plates 2, and the four tie rods 3 are distributed in an annular array; two connecting members 4 are provided on the tie rods 3, and the connecting members 4 are matched with the flange plates 2; locking nuts 5 are installed at both front and rear ends of the tie rods 3 by means of threads, and the locking nuts 5 are in contact with the connecting members 4; fixing rings 6 are provided at both front and rear ends of the inner peripheral surface of the corrugated connecting pipe 1; three first connecting rods 7 and a second connecting rod 8 are provided between the two fixing rings 6, and the first connecting rod 7 is connected to the second connecting rod 8;

[0030] Four connecting frames 201 are provided on the outer peripheral surface of the flange plate 2, and the connecting frames 201 correspond to the tie rods 3. A spline cylinder 202 is provided on one side of the connecting frame 201, and the tie rod 3 passes through the spline cylinder 202.

[0031] In the embodiment of the present disclosure, as Figures 2 to 4 shown, the connecting member 4 includes an adjusting ring 401, a spline sleeve 402, a compression spring 403, and a positioning groove 404. A spline sleeve 402 is provided on one side of the adjusting ring 401, and the adjusting ring 401 and the spline sleeve 402 are slidably sleeved on the tie rod 3. A compression spring 403 is sleeved on the spline sleeve 402. A positioning groove 404 is formed on the other side of the adjusting ring 401, and the positioning grooves 404 are distributed in an annular array;

[0032] A positioning block 501 is provided on one side of the locking nut 5, and the positioning blocks 501 are distributed in an annular array, and the positioning blocks 501 are matched with the positioning grooves 404;

[0033] When the locking nut 5 is in a locked state with the tie rod 3, the spline sleeve 402 is slidably inserted into the spline cylinder 202, and the compression spring 403 is supported between the adjusting ring 401 and the connecting frame 201, and the positioning block 501 is engaged with the positioning groove 404. In the present utility model, the connecting member 4 is provided. Through the sliding fit of the spline sleeve 402 and the spline cylinder 202, and by utilizing the elastic return of the compression spring 403, the positioning block 501 can be stably engaged with the positioning groove 404, realizing the self-locking process of the locking nut 5, effectively avoiding the phenomenon of overheating and loosening of the locking nut 5.

[0034] Embodiment 2, on the basis of Embodiment 1, as Figure 5 and Figure 6 shown, three connecting blocks 601 are provided on the inner peripheral surface of the fixing ring 6, and the three connecting blocks 601 are distributed in an annular array. A limit card slot 602 is formed on the connecting block 601;

[0035] One end of the first connecting rod 7 is provided with a first fixing plate 701. The first connecting rod 7 passes through the limit card slot 602, and the first fixing plate 701 is in contact with the connecting block 601. The other end of the first connecting rod 7 is provided with a support ring 702. A restoring spring 703 is sleeved on the first connecting rod 7.

[0036] One end of the second connecting rod 8 is provided with a second fixing plate 801. The second connecting rod 8 passes through the limit card slot 602, and the second fixing plate 801 is in contact with the connecting block 601. The other end of the second connecting rod 8 is provided with a limit sleeve 802. The first connecting rod 7 slides through the bottom wall of the limit sleeve 802, and the restoring spring 703 is supported between the bottom wall of the limit sleeve 802 and the support ring 702. Since there are two fixing rings 6 in the corrugated connecting pipe 1, three groups of first connecting rods 7 and second connecting rods 8 are arranged between the fixing rings 6. Through the sliding fit of the first connecting rod 7 and the limit sleeve 802 and the elastic action of the restoring spring 703, the thermal expansion and contraction of the corrugated connecting pipe 1 caused by temperature changes are avoided, and the deformation caused by the thermal stress generated therein is eliminated.

[0037] The working principle of this embodiment: During use, through the sliding fit of the spline sleeve 402 and the spline cylinder 202 and the rebounding action of the compression spring 403, the positioning block 501 can be stably clamped with the positioning groove 404, realizing the self-locking process of the locking nut 5 and effectively avoiding the phenomenon of overheating loosening of the locking nut 5; three groups of first connecting rods 7 and second connecting rods 8 are arranged between the fixing rings 6. Through the sliding fit of the first connecting rod 7 and the limit sleeve 802 and the elastic action of the restoring spring 703, the thermal expansion and contraction of the corrugated connecting pipe 1 caused by temperature changes are avoided, and the deformation caused by the thermal stress generated therein is eliminated.

[0038] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present disclosure, and all should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A corrugated compensator for a high-pressure heat exchanger, characterized in that, Including: A corrugated connecting pipe, with flange plates provided at both the front and rear ends of the corrugated connecting pipe; four tie rods are provided between the two flange plates, and the four tie rods are distributed in a circular array; two connecting pieces are provided on the tie rods, and the connecting pieces are matched with the flange plates; locking nuts are installed at both the front and rear ends of the tie rods by means of threads, and the locking nuts are in contact with the connecting pieces; fixing rings are provided at both the front and rear ends of the inner peripheral surface of the corrugated connecting pipe; three first connecting rods and second connecting rods are provided between the two fixing rings, and the first connecting rod is connected to the second connecting rod. Four connecting frames are provided on the outer peripheral surface of the flange plate, and the connecting frames correspond to the tie rods. A spline cylinder is provided on one side of the connecting frame, and the tie rod passes through the spline cylinder.

2. A corrugated compensator for a high-pressure heat exchanger according to claim 1, characterized in that The connecting piece includes an adjusting ring, a spline sleeve, a compression spring and a positioning groove. A spline sleeve is provided on one side of the adjusting ring, and the adjusting ring and the spline sleeve are slidably sleeved on the tie rod. A compression spring is sleeved on the spline sleeve. A positioning groove is opened on the other side of the adjusting ring, and the positioning grooves are distributed in a circular array.

3. A corrugated compensator for a high-pressure heat exchanger according to claim 1, characterized in that A positioning block is provided on one side of the locking nut, and the positioning blocks are distributed in a circular array, and the positioning blocks are matched with the positioning grooves.

4. A corrugated compensator for a high-pressure heat exchanger according to claim 3, characterized in that When the locking nut and the tie rod are in a locked state, the spline sleeve is slidably inserted into the spline cylinder, and the compression spring is supported between the adjusting ring and the connecting frame, and the positioning block is engaged with the positioning groove.

5. A corrugated compensator for a high-pressure heat exchanger according to claim 1, characterized in that Three connecting blocks are provided on the inner peripheral surface of the fixing ring, and the three connecting blocks are distributed in a circular array. Limiting card slots are opened on the connecting blocks.

6. A corrugated compensator for a high-pressure heat exchanger according to claim 1, characterized in that One end of the first connecting rod is provided with a first fixing plate. The first connecting rod passes through the limiting card slot, and the first fixing plate is in contact with the connecting block. A support ring is provided at the other end of the first connecting rod, and a restoring spring is sleeved on the first connecting rod.

7. A corrugated compensator for a high-pressure heat exchanger according to claim 1, characterized in that One end of the second connecting rod is provided with a second fixing plate. The second connecting rod passes through the limiting card slot, and the second fixing plate is in contact with the connecting block. A limiting sleeve frame is provided at the other end of the second connecting rod. The first connecting rod slidably passes through the bottom wall of the limiting sleeve frame, and the restoring spring is supported between the bottom wall of the limiting sleeve frame and the support ring.

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