Heat supply pipeline connecting device

Abstract

The utility model discloses a heat supply pipeline connecting device, which relates to the technical field of heat supply pipeline connecting devices, and comprises a corrugated compensator, a pull rod component and a positioning component, the corrugated compensator consists of a compensator main body, a connecting flange and a fixed sleeve seat, and the pull rod component comprises a threaded pull rod, an end nut, a fastening nut and an adjusting nut. The positioning assembly is used for enabling the adjusting positions of the adjusting nuts to be kept consistent. By arranging the positioning assembly, the adjusting positions of the adjusting nuts can be kept consistent, stable guarantee is provided for follow-up use of the ripple compensator, meanwhile, the adjusting positions of the adjusting nuts can be rapidly judged through the graduated scale on the guide rod, and therefore the adjusting efficiency of the adjusting nuts can be effectively improved, and the service life of the ripple compensator is prolonged. And in the subsequent maintenance and inspection process, the inspection personnel can quickly judge the shrinkage condition of the ripple compensator, so that the operation condition of the heat distribution pipeline can be better mastered.

Description

Technical Field

[0001] This utility model relates to the technical field of heating pipeline connection devices, specifically a heating pipeline connection device. Background Technology

[0002] Heating pipelines are used to transport steam or hot water. Their core task is to transfer the heat energy produced by the heat source to users. Heating pipeline compensators are key components that connect two heating pipelines and are used to alleviate the problem of thermal expansion and contraction caused by temperature changes, ensuring the safe and stable operation of the pipeline system.

[0003] When using a corrugated compensator in a heating pipeline, the tie rods and nuts are used to fix the position of the compensator and ensure that its preload is evenly distributed. Inconsistent nut positions may lead to uneven stress on the tie rods, causing the following problems:

[0004] Localized stress concentration: Some tie rods are subjected to excessive loads, which may cause deformation or breakage;

[0005] Expansion joint misalignment: This causes the bellows to deform unevenly during expansion and contraction, affecting sealing performance and lifespan.

[0006] Based on this, in order to ensure that the adjustment position of the nuts of the heating pipeline compensator remains consistent, a heating pipeline connection device is provided. Utility Model Content

[0007] The purpose of this utility model is to provide a heating pipeline connection device in order to solve the problems mentioned above.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a heating pipeline connection device, comprising a corrugated compensator consisting of a compensator body, a connecting flange, and a fixed sleeve, and a tie rod assembly. The connecting flange is symmetrically fixed to both ends of the compensator body, the fixed sleeve is circumferentially fixed to the outside of the connecting flange, and the tie rod assembly is connected between two fixed sleeves aligned on the two connecting flanges. The tie rod assembly includes a threaded tie rod, an end nut, a fastening nut, and an adjusting nut.

[0009] The threaded tie rod passes through two horizontally aligned fixed sleeves. The end nuts are symmetrically threaded to the outer sides of both ends of the threaded tie rod and fit against the fixed sleeves. The fastening nuts and adjusting nuts are distributed between the two fixed sleeves and threaded to the threaded tie rod. The fastening nuts and adjusting nuts fit against the two fixed sleeves to achieve the connection and fixation between the threaded tie rod and the fixed sleeves. The adjusting nuts are adjusted to be away from the fixed sleeves to determine the contraction position of the compensator body.

[0010] The multiple threaded rods of the multiple sets of tie rod assemblies are further provided with positioning components on their outer sides, which are used to keep the positions of the multiple adjusting nuts consistent.

[0011] As a further improvement of this utility model: the positioning component includes a movable ring and a positioning sleeve;

[0012] The movable ring is distributed between the two connecting flanges and sleeved on the outside of the compensator body. The number and position of the positioning sleeve correspond one-to-one with the number and position of the threaded tie rod and are fixed on the outside of the movable ring. The positioning sleeve is sleeved on the outside of the threaded tie rod.

[0013] The positioning sleeve is located between the fastening nut and the adjusting nut, and the outer side of the threaded rod is also threadedly connected to the positioning nut between the fastening nut and the positioning sleeve.

[0014] The moving ring drives multiple positioning sleeves to move along the outer wall of multiple threaded tie rods to position the adjustment positions of multiple adjusting nuts. The positioning nuts and adjusting nuts are attached to both ends of the positioning sleeves to fix the position of the positioning sleeves.

[0015] As a further embodiment of this utility model: a fixing seat is also fixed to the outside of the connecting flange near the adjusting nut, and a guide rod extending to the outside of the compensator body is fixed to the fixing seat;

[0016] A sliding sleeve is also fixed to the outside of the movable ring, and the sliding sleeve is slidably sleeved on the outside of the guide rod;

[0017] The inner diameter of the through hole on the sliding sleeve matches the outer diameter of the guide rod, and the inner diameter of the through hole on the positioning sleeve is larger than the outer diameter of the threaded tie rod.

[0018] As a further embodiment of this utility model: multiple sets of fixed seats and guide rods are arranged along the circumferential direction, and the fixed seats and fixed sleeves are staggered with each other along the circumference, and the number of sliding sleeves matches the number of guide rods.

[0019] As a further improvement of this utility model: a scale is provided on the outside of the guide rod, and the position of the sliding sleeve corresponding to the position of the scale is used to mark the distance between the adjusted nut and the connecting flange after adjustment.

[0020] As a further improvement of this utility model, the inner diameter of the moving ring is larger than the outer diameter of the compensator body.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] By setting up a positioning component, the adjustment positions of multiple adjusting nuts can be kept consistent, providing a stable guarantee for the subsequent use of the bellows compensator. At the same time, the adjustment position of the adjusting nut can be quickly determined by the scale on the guide rod, which can effectively improve the adjustment efficiency of the adjusting nut. In subsequent maintenance and inspection, it is convenient for inspection personnel to quickly determine the contraction of the bellows compensator, thereby enabling them to better grasp the operation of the thermal pipeline. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0025] Figure 3 This is a schematic diagram showing the state of the adjusting nut after adjustment according to this utility model;

[0026] Figure 4 This is a schematic diagram showing the disassembled parts of this utility model.

[0027] In the figure: 1. Corrugated compensator; 101. Compensator body; 102. Connecting flange; 103. Fixed sleeve; 104. Fixed seat; 105. Guide rod; 2. Tie rod assembly; 201. Threaded tie rod; 202. End nut; 203. Fastening nut; 204. Adjusting nut; 205. Positioning nut; 3. Positioning assembly; 301. Moving ring; 302. Positioning sleeve; 303. Sliding sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-4 In this embodiment of the utility model, a heating pipeline connection device includes a corrugated compensator 1 composed of a compensator body 101, a connecting flange 102, and a fixing sleeve 103, and a tie rod assembly 2. The connecting flange 102 is symmetrically fixed at both ends of the compensator body 101, and the fixing sleeve 103 is circumferentially fixed to the outside of the connecting flange 102. The tie rod assembly 2 is connected between two fixing sleeves 103 that are aligned on the two connecting flanges 102. The tie rod assembly 2 includes a threaded tie rod 201, an end nut 202, a fastening nut 203, and an adjusting nut 204.

[0030] The threaded tie rod 201 passes through two horizontally aligned fixed sleeves 103. The end nuts 202 are symmetrically threaded to the outer sides of both ends of the threaded tie rod 201 and fit against the fixed sleeves 103. The fastening nuts 203 and adjusting nuts 204 are distributed between the two fixed sleeves 103 and threaded to the threaded tie rod 201. The fastening nuts 203 and adjusting nuts 204 are distributed and fit against the two fixed sleeves 103 to realize the connection and fixation between the threaded tie rod 201 and the fixed sleeves 103. The adjusting nuts 204 are adjusted to be away from the fixed sleeves 103 to determine the contraction position of the compensator body 101.

[0031] The multiple threaded pull rods 201 of the multiple pull rod assembly 2 are also provided with a positioning component 3 on the outside. The positioning component 3 is used to keep the adjustment position of the multiple adjusting nuts 204 consistent.

[0032] Positioning component 3 includes a moving ring 301 and a positioning sleeve 302;

[0033] The movable ring 301 is distributed between the two connecting flanges 102 and sleeved on the outside of the compensator body 101. The number and position of the positioning sleeve 302 correspond one-to-one with the number and position of the threaded tie rod 201 and are fixed on the outside of the movable ring 301. The positioning sleeve 302 is sleeved on the outside of the threaded tie rod 201.

[0034] The positioning sleeve 302 is located between the fastening nut 203 and the adjusting nut 204, and the outer side of the threaded rod 201 is also threadedly connected to the positioning nut 205 between the fastening nut 203 and the positioning sleeve 302.

[0035] The moving ring 301 drives multiple positioning sleeves 302 to move along the outer wall of multiple threaded rods 201, which is used to position the adjustment position of multiple adjusting nuts 204. The positioning nuts 205 and adjusting nuts 204 are attached to both ends of the positioning sleeves 302 to fix the position of the positioning sleeves 302.

[0036] A fixing seat 104 is also fixed to the outside of the connecting flange 102 near the nut 204, and a guide rod 105 extending to the outside of the compensator body 101 is fixed to the fixing seat 104.

[0037] A sliding sleeve 303 is also fixed on the outer side of the movable ring 301, and the sliding sleeve 303 is slidably sleeved on the outer side of the guide rod 105.

[0038] The inner diameter of the through hole on the sliding sleeve 303 matches the outer diameter of the guide rod 105, and the inner diameter of the through hole on the positioning sleeve 302 is larger than the outer diameter of the threaded tie rod 201.

[0039] In this embodiment: When this corrugated compensator 1 is in use, it is connected to the flange structure on the heat pipe through the connecting flange 102. This is the existing connection structure, and it will not be described in detail here.

[0040] After the bellows compensator 1 is installed, the position of the adjusting nut 204 can be adjusted according to the shrinkage requirements of the bellows compensator 1 (it should be noted that the fastening nut 203 and one end nut 202 keep the fixed sleeve 103 in a pressed state, so that the threaded tie rod 201 and the connecting flange 102 near the fastening nut 203 are relatively fixed).

[0041] When adjusting the adjusting nut 204, first turn the positioning nut 205 towards the fastening nut 203 to release the limitation on the positioning component 3 (it should be noted that during the transportation of the bellows compensator 1, the positioning nut 205, positioning sleeve 302, adjusting nut 204, and fixing sleeve 103 are in sequence to prevent the positioning component 3 from shaking during transportation). Then, pull the positioning component 3 away from the adjusting nut 204. Its sliding sleeve 303 and guide rod 105 cooperate to achieve sliding guidance and limitation. The positioning sleeve 302 has a large diameter through hole structure so that it will not cause wear to the threads on the outside of the threaded pull rod 201.

[0042] After determining the position of the positioning component 3, tighten the positioning nut 205 again to bring it closer to the positioning component 3 and make it fit against one end of the positioning sleeve 302, thereby limiting the position of the positioning component 3. Then, tighten the adjusting nut 204 to move it towards the positioning component 3 and finally fit against the other end of the positioning sleeve 302. By adjusting the adjusting nut 204, space can be provided for the shrinkage of the bellows compensator 1.

[0043] By using the structural design of the positioning component 3, the adjustment positions of multiple adjusting nuts 204 can be kept consistent, providing a stable guarantee for the subsequent use of the bellows compensator 1.

[0044] Please refer to this carefully. Figures 1-4 Multiple sets of fixed seats 104 and guide rods 105 are arranged along the circumference, and the fixed seats 104 and fixed sleeves 103 are staggered along the circumference. The number of sliding sleeves 303 matches the number of guide rods 105.

[0045] A scale is provided on the outside of the guide rod 105. The position of the sliding sleeve 303 corresponding to the scale is used to mark the distance between the adjusting nut 204 and the connecting flange 102 after adjustment.

[0046] In this embodiment: this structure enables stable movement of the positioning component 3 and rapid determination of its position;

[0047] It should also be noted that scales are installed on multiple guide rods 105. This allows inspectors to quickly determine the contraction of the corrugated compensator 1 during subsequent maintenance and inspection, thus enabling them to better understand the operation of the thermal pipeline.

[0048] Please refer to this carefully. Figures 1-4 The inner diameter of the moving ring 301 is larger than the outer diameter of the compensator body 101.

[0049] In this embodiment, this structure ensures that the moving ring 301 does not contact the surface of the compensator body 101, thus preventing interference with the extension and retraction of the compensator body 101.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heating pipeline connection device, comprising a corrugated compensator (1) consisting of a compensator body (101), a connecting flange (102), and a fixing sleeve (103), and a tie rod assembly (2), wherein the connecting flange (102) is symmetrically fixed at both ends of the compensator body (101), and the fixing sleeve (103) is circumferentially fixed to the outside of the connecting flange (102), characterized in that, The tie rod assembly (2) is connected between two fixed sleeves (103) aligned on two connecting flanges (102). The tie rod assembly (2) includes a threaded tie rod (201), an end nut (202), a fastening nut (203), and an adjusting nut (204). The threaded rod (201) passes through two horizontally aligned fixed sleeves (103). The end nuts (202) are symmetrically threaded to the outer sides of both ends of the threaded rod (201) and fit against the fixed sleeves (103). The fastening nuts (203) and adjusting nuts (204) are distributed in the middle of the two fixed sleeves (103) and threaded to the threaded rod (201). The fastening nuts (203) and adjusting nuts (204) fit against the two fixed sleeves (103) to achieve the connection and fixation between the threaded rod (201) and the fixed sleeves (103). The adjusting nuts (204) are adjusted to move away from the fixed sleeves (103) to determine the contraction position of the compensator body (101). The multiple threaded pull rods (201) of the multiple sets of pull rod assemblies (2) are also provided with positioning components (3) on the outside, which are used to keep the positions of the multiple adjusting nuts (204) consistent.

2. A heating pipeline connection device according to claim 1, characterized in that, The positioning component (3) includes a moving ring (301) and a positioning sleeve (302); The movable ring (301) is distributed between the two connecting flanges (102) and sleeved on the outside of the compensator body (101). The number and position of the positioning sleeve (302) correspond one-to-one with the number and position of the threaded tie rod (201) and are fixed on the outside of the movable ring (301). The positioning sleeve (302) is sleeved on the outside of the threaded tie rod (201). The positioning sleeve (302) is located between the fastening nut (203) and the adjusting nut (204), and the outer side of the threaded rod (201) is also threadedly connected to the positioning nut (205) between the fastening nut (203) and the positioning sleeve (302). The moving ring (301) drives multiple positioning sleeves (302) to move along the outer wall of multiple threaded rods (201) to position multiple adjusting nuts (204). The positioning nuts (205) and adjusting nuts (204) are attached to both ends of the positioning sleeves (302) to fix the position of the positioning sleeves (302).

3. A heating pipeline connection device according to claim 2, characterized in that, The adjusting nut (204) is also fixed to the outside of the connecting flange (102) near the outside of the connecting flange (102), and the fixed seat (104) is fixed with a guide rod (105) extending to the outside of the compensator body (101). A sliding sleeve (303) is also fixed on the outside of the moving ring (301), and the sliding sleeve (303) is slidably sleeved on the outside of the guide rod (105); The inner diameter of the through hole on the sliding sleeve (303) matches the outer diameter of the guide rod (105), and the inner diameter of the through hole on the positioning sleeve (302) is greater than the outer diameter of the threaded pull rod (201).

4. A heating pipeline connection device according to claim 3, characterized in that, The fixed seat (104) and guide rod (105) are arranged in multiple sets along the circumferential direction, and the fixed seat (104) and fixed sleeve (103) are staggered along the circumference. The number of sliding sleeve (303) matches the number of guide rod (105).

5. A heating pipeline connection device according to claim 3, characterized in that, A scale is provided on the outside of the guide rod (105), and the position of the sliding sleeve (303) corresponding to the scale is used to mark the distance between the adjusted nut (204) and the connecting flange (102) after adjustment.

6. A heating pipeline connection device according to claim 2, characterized in that, The inner diameter of the moving ring (301) is larger than the outer diameter of the compensator body (101).

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