Thermal expansion and cold contraction prevention support structure for power plant pipeline

Abstract

The utility model relates to the field of power plant pipelines, and provides a power plant pipeline support structure capable of preventing thermal expansion and cold contraction. And the damping structure comprises a first mounting ring, a second mounting ring, a third mounting seat, a third connecting rod, a sliding block, a first spring, a limiting rod, a fourth mounting seat, a second spring and a telescopic rod, the top end of the first mounting ring is welded to the bottom face of the fixing plate, and the second mounting ring is arranged in the first mounting ring. Through the arrangement of the damping structure, the second mounting rings can drive the sliding blocks to slide outside the limiting rods when being vibrated, meanwhile, the second springs are retracted under pressure, the telescopic rods achieve the limiting function, the two first mounting rings are also suitable for pipelines of various specifications through bolts, and meanwhile the two first mounting rings are also suitable for expansion caused by heat and contraction caused by cold of the pipelines; the device has the functions of shock absorption and practical thermal expansion and cold contraction, and the service life of the support structure is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to power plant pipeline technical field, concretely is a power plant pipeline heat expansion and cold contraction support structure. BACKGROUND

[0002] In power plant, heat pipeline support is widely used in boiler, steam turbine, condenser and other equipment to support pipeline and guarantee normal operation of equipment, heat pipeline in power plant is heavy, through support, the weight of pipeline can be dispersed to multiple points, the bearing pressure of pipeline is reduced, thereby guaranteeing stability and safety of pipeline, the types of power plant pipeline support include fixed support, sliding support, elastic support, telescopic support and the like.

[0003] But the existing support structure is usually fixed through support column, pipeline under heat expansion and cold contraction can lead to deformation of support column foundation, meanwhile, pipeline can produce vibration under working condition, the existing device is not perfect in noise reduction and adaptability of support under heat expansion and cold contraction, thereby influencing service life. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a power plant pipeline heat expansion and cold contraction support structure to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a power plant pipeline heat expansion and cold contraction support structure, including fixed plate,

[0006] The top surface of the fixed plate is welded with a mounting structure;

[0007] The bottom surface of the fixed plate is welded with a damping structure, the damping structure includes a first mounting ring, a second mounting ring, a third mounting seat, a third connecting rod, a sliding block, a first spring, a limiting rod, a fourth mounting seat, a second spring and an extension rod, the top end of the first mounting ring is welded to the bottom surface of the fixed plate, the inside of the first mounting ring is provided with the second mounting ring, both ends of the second mounting ring are welded with the third mounting seat, the side, away from the second mounting ring, of the third mounting seat is installed with the third connecting rod, the side, away from the third mounting seat, of the third connecting rod is installed with the sliding block, the opposite side of the sliding block is fixed with the first spring, the inside of the first spring is penetrated with the limiting rod, both ends of the limiting rod are fixed with the fourth mounting seat, the outside of the fourth mounting seat is provided with the second spring, the inside of the second spring is penetrated with the extension rod;

[0008] The inner wall of the second mounting ring is installed with a pipeline.

[0009] Preferably, the first mounting ring is provided with two groups, the two groups of first mounting rings are connected through bolts, and the first mounting ring is in sliding connection with the second mounting ring.

[0010] Preferably, the first mounting ring is fixedly connected with the fourth mounting base, the first mounting ring is fixedly connected with the second spring, and the first mounting ring is fixedly connected with the telescopic rod.

[0011] Preferably, the second mounting ring is fixedly connected with the second spring, and the second mounting ring is fixedly connected with the telescopic rod.

[0012] Preferably, the third mounting base is connected with the third connecting rod through a shaft, the third connecting rod is connected with the sliding block through a shaft, and the sliding block is slidingly connected with the limiting rod.

[0013] Preferably, the mounting structure comprises a first mounting base, a first connecting rod, a second connecting rod, a second mounting base and a mounting plate, bottom ends of the first mounting base are welded to the top surface of the fixed plate, the first connecting rod is arranged on the top of the first mounting base, the second connecting rod is arranged on the top of the first connecting rod, the second mounting base is arranged on the top of the second connecting rod, and the mounting plate is welded to the top end of the second mounting base.

[0014] Preferably, the first mounting base is provided in three groups, the first mounting base is distributed in a triangular shape, and the first mounting base is connected with the first connecting rod through a shaft.

[0015] Preferably, the first connecting rod is connected with the second connecting rod through a shaft, the second connecting rod is connected with the second mounting base through a shaft, and the second mounting base is connected with the mounting plate through a shaft.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] Through the damping structure, the second mounting ring is driven to slide outside the limiting rod under vibration, the second spring is recovered under pressure, the telescopic rod plays a limiting function, the two groups of first mounting rings are suitable for pipelines of various specifications through bolts, and are also suitable for thermal expansion and cold contraction of the pipelines, the device has the functions of damping and practical thermal expansion and cold contraction, and the service life of the support structure is improved.

[0018] Through the mounting structure, the horizontal force is unloaded by a steel cable, the deformation of the support column foundation caused by thermal expansion and cold contraction can be prevented, the mounting plate is distributed in a triangular position, the stability is best, the device has the function of stably installing the pipeline, and the stability of the support structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole three-dimensional schematic view of the utility model;

[0020] Figure 2 It is a three-dimensional enlarged schematic view of the top view section of the utility model;

[0021] Figure 3 This is a three-dimensional side view sectional diagram of the present invention;

[0022] Figure 4 This is a partial three-dimensional schematic diagram of the present invention;

[0023] Figure 5 This is a three-dimensional schematic diagram of the first mounting ring of this utility model.

[0024] Figure 6 This is a three-dimensional schematic diagram of the second mounting ring of this utility model.

[0025] The reference numerals in the diagram are as follows: 1. Fixing plate; 2. Mounting structure; 201. First mounting base; 202. First connecting rod; 203. Second connecting rod; 204. Second mounting base; 205. Mounting plate; 3. Shock absorption structure; 301. First mounting ring; 302. Second mounting ring; 303. Third mounting base; 304. Third connecting rod; 305. Slider; 306. First spring; 307. Limiting rod; 308. Fourth mounting base; 309. Second spring; 310. Telescopic rod; 4. Pipe. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-6 The present invention provides a power plant pipeline anti-thermal expansion and contraction support structure, including a fixing plate 1.

[0028] Reference Figure 1As shown, the top surface of the fixing plate 1 is welded with an installation structure 2. The installation structure 2 includes a first mounting base 201, a first connecting rod 202, a second connecting rod 203, a second mounting base 204, and a mounting plate 205. The bottom end of the first mounting base 201 is welded to the top surface of the fixing plate 1. The first connecting rod 202 is installed on the top of the first mounting base 201. The second connecting rod 203 is installed on the top of the first connecting rod 202. The second mounting base 204 is installed on the top of the second connecting rod 203. The top end of the second mounting base 204 is welded with a mounting plate 205. There are three sets of first mounting bases 201, which are arranged in a triangular shape. The first mounting base 201 is connected to the first connecting rod 202 by a shaft. The first connecting rod 202 is connected to the second connecting rod 203 by a shaft. The second connecting rod 203 is connected to the second mounting base 204 by a shaft. The second mounting base 204 is connected to the mounting plate 205 by a shaft.

[0029] Using steel cable hoisting to relieve horizontal forces can prevent deformation of the support column foundation due to thermal expansion and contraction. The installation plate 205 is triangularly distributed to maximize its stability, thus enabling the device to stably install the pipeline 4.

[0030] Reference Figure 2 and Figure 4As shown, a shock-absorbing structure 3 is welded to the bottom surface of the fixed plate 1. The shock-absorbing structure 3 includes a first mounting ring 301, a second mounting ring 302, a third mounting base 303, a third connecting rod 304, a slider 305, a first spring 306, a limiting rod 307, a fourth mounting base 308, a second spring 309, and a telescopic rod 310. The top end of the first mounting ring 301 is welded to the bottom surface of the fixed plate 1. The second mounting ring 302 is disposed inside the first mounting ring 301. The third mounting base 303 is welded to both ends of the second mounting ring 302. The third connecting rod 304 is installed on the side of the third mounting base 303 away from the second mounting ring 302. The slider 305 is installed on the side of the third connecting rod 304 away from the third mounting base 303. The first spring 306 is fixed to the opposite side of the slider 305. The limiting rod 307 passes through the inside of the first spring 306. The limiting rod 307 is fixed to both ends of the first spring 306. A fourth mounting base 308 is fixedly provided. A second spring 309 is provided on the outside of the fourth mounting base 308. A telescopic rod 310 passes through the inside of the second spring 309. Two sets of first mounting rings 301 are provided. The two sets of first mounting rings 301 are connected by bolts. The first mounting ring 301 is slidably connected to the second mounting ring 302. The first mounting ring 301 is fixedly connected to the fourth mounting base 308. The first mounting ring 301 is fixedly connected to the second spring 309. The first mounting ring 301 is fixedly connected to the telescopic rod 310. The second mounting ring 302 is fixedly connected to the second spring 309. The second mounting ring 302 is fixedly connected to the telescopic rod 310. The third mounting base 303 is connected to the third connecting rod 304 by a shaft. The third connecting rod 304 is connected to the slider 305 by a shaft. The slider 305 is slidably connected to the limiting rod 307. A pipe 4 is installed on the inner wall of the second mounting ring 302.

[0031] When the second mounting ring 302 is vibrated, it will cause the slider 305 to slide outside the limiting rod 307. At the same time, the second spring 309 will be retracted under pressure, and the telescopic rod 310 will play a limiting role. The two sets of first mounting rings 301 can also be used for various specifications of pipes 4 through bolts. They are also suitable for the thermal expansion and contraction of pipes 4, so that the device has the functions of shock absorption and practical thermal expansion and contraction.

[0032] In summary, as Figures 1-6As shown, in use, the mounting plates 205 of this bracket structure have through grooves inside to facilitate installation, such as by inserting expansion bolts through the through grooves into the ceiling or by bolting them to other required frames. Adjusting the spacing of the three sets of mounting plates 205 changes the angle of the second connecting rod 203 and the first connecting rod 202 via the second mounting seat 204, thereby moving the fixed plate 1 closer to or further away from the ground via the first mounting seat 201, thus making its height adjustable. When the pipe 4 is in operation, it will vibrate, causing the second mounting ring 302 to slide inside the first mounting ring 301. The second mounting ring 302 drives the slider 305 to slide outside the limiting rod 307 via the third mounting seat 303 and the third connecting rod 304. The slider 305 drives the first spring 306 to extend and retract, while the second mounting ring 302 drives the second spring 309 and the telescopic rod 310 to extend and retract, thereby achieving the function of shock absorption. The above is the working principle of this bracket structure.

[0033] All aspects not detailed in this utility model are well-known to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A thermal expansion and contraction prevention support structure for power plant pipelines, comprising a fixing plate (1), characterized in that: The top surface of each fixing plate (1) is welded with an installation structure (2); The bottom surface of the fixed plate (1) is welded with a shock-absorbing structure (3). The shock-absorbing structure (3) includes a first mounting ring (301), a second mounting ring (302), a third mounting seat (303), a third connecting rod (304), a slider (305), a first spring (306), a limiting rod (307), a fourth mounting seat (308), a second spring (309), and a telescopic rod (310). The top end of the first mounting ring (301) is welded to the bottom surface of the fixed plate (1). The second mounting ring (302) is provided inside the first mounting ring (301). Both ends of the second mounting ring (302) are welded with third mounting seats (309). 3) A third connecting rod (304) is installed on the side of the third mounting base (303) away from the second mounting ring (302). A slider (305) is installed on the side of the third connecting rod (304) away from the third mounting base (303). A first spring (306) is fixed on the opposite side of the slider (305). A limit rod (307) passes through the inside of the first spring (306). A fourth mounting base (308) is fixed at both ends of the limit rod (307). A second spring (309) is provided on the outside of the fourth mounting base (308). A telescopic rod (310) passes through the inside of the second spring (309). The inner wall of the second mounting ring (302) is fitted with a pipe (4).

2. The thermal expansion and contraction prevention support structure for power plant pipelines according to claim 1, characterized in that, The first mounting ring (301) is provided in two sets, and the two sets of the first mounting ring (301) are connected by bolts. The first mounting ring (301) is slidably connected to the second mounting ring (302).

3. The thermal expansion and contraction prevention support structure for power plant pipelines according to claim 1, characterized in that, The first mounting ring (301) is fixedly connected to the fourth mounting base (308), the first mounting ring (301) is fixedly connected to the second spring (309), and the first mounting ring (301) is fixedly connected to the telescopic rod (310).

4. The thermal expansion and contraction prevention support structure for power plant pipelines according to claim 1, characterized in that, The second mounting ring (302) is fixedly connected to the second spring (309), and the second mounting ring (302) is fixedly connected to the telescopic rod (310).

5. The thermal expansion and contraction prevention support structure for power plant pipelines according to claim 1, characterized in that, The third mounting base (303) is connected to the third connecting rod (304) by a shaft, the third connecting rod (304) is connected to the slider (305) by a shaft, and the slider (305) is slidably connected to the limiting rod (307).

6. The thermal expansion and contraction prevention support structure for power plant pipelines according to claim 1, characterized in that, The mounting structure (2) includes a first mounting base (201), a first connecting rod (202), a second connecting rod (203), a second mounting base (204), and a mounting plate (205). The bottom end of the first mounting base (201) is welded to the top surface of the fixing plate (1). The first connecting rod (202) is mounted on the top of the first mounting base (201). The second connecting rod (203) is mounted on the top of the first connecting rod (202). The second mounting base (204) is mounted on the top of the second connecting rod (203). The mounting plate (205) is welded to the top of the second mounting base (204).

7. The thermal expansion and contraction prevention support structure for power plant pipelines according to claim 6, characterized in that, The first mounting base (201) is provided in three sets, and the first mounting base (201) is distributed in a triangular shape. The first mounting base (201) is connected to the first connecting rod (202) by a shaft.

8. The thermal expansion and contraction prevention support structure for power plant pipelines according to claim 6, characterized in that, The first connecting rod (202) and the second connecting rod (203) are connected by a shaft, the second connecting rod (203) and the second mounting base (204) are connected by a shaft, and the second mounting base (204) and the mounting plate (205) are connected by a shaft.

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