Adjustable support for preventing pipeline from disengaging

Abstract

The utility model discloses an adjustable support for preventing a pipeline from disengaging, and relates to the technical field of pipeline supports, the adjustable support comprises a top plate, a bottom plate and an adjusting rod, the bottom plate is provided with a threaded hole, the size of the adjusting rod is the same as that of the threaded hole, and matched threads are engraved on the adjusting rod; the end, away from the bottom plate, of the adjusting rod is connected with a damping spring, the adjusting rod penetrates through the bottom plate to form threaded connection, the damping spring at the end of the adjusting rod abuts against the top plate, the portion, between the top plate and the bottom plate, of the adjusting rod is sleeved with a protection cylinder, the protection cylinder is connected with the top plate, and the adjusting rod and the protection cylinder can move relatively. The distance between the top plate and the bottom plate can be adjusted through an adjusting rod. The device is simple in structure, convenient to manufacture, economical and applicable, the problems of vibration and overlarge local stress caused by pipeline disengaging can be effectively solved, fatigue damage of a welding seam of the pipeline is prevented, and normal operation of the pipeline is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline support technical field, concretely relates to adjustable support of preventing pipeline from emptying. BACKGROUND

[0002] Steam is generally used as heat source in chemical plant, which is used for heating, humidifying, generating power or as driving source. The steam is transported by pipeline, and the steam has high temperature. During the transportation, the pipeline will expand or shrink due to the temperature change, thus causing thermal displacement of the pipeline.

[0003] At present, the most economical and reliable compensation mode for steam pipeline compensation design is still natural compensation, and the compensation is achieved by deflection of the pipeline in the curved pipe section to compensate the thermal displacement.

[0004] In actual arrangement, the plane π type bend is mainly used. Due to the limitation of plane space, the space vertical π type bend arrangement is more common.

[0005] The vertical π type bend can solve the problem of thermal compensation, but also brings many problems. When installed at ambient temperature, the pipe support of the pipeline is attached to the structure support, and the vertical load is well shared. When operated at operating temperature, the thermal displacement is caused due to the temperature change, which leads to local pipe support emptying of the π type bend, causes transverse vibration of the π type bend, increases the stress at the welded joint of the pipeline, and may be broken in severe cases, which seriously affects the normal operation of the pipeline. Therefore, it is very important to take reasonable anti-emptying measures for the steam pipeline. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at overcoming the defects of prior art, and provides an adjustable support for preventing pipeline from emptying.

[0007] The utility model aims at overcoming the defects of prior art, and provides an adjustable support for preventing pipeline from emptying.

[0008] An adjustable support for preventing pipeline from emptying, which comprises a top plate, a bottom plate and an adjusting rod, the bottom plate is provided with a threaded hole, the adjusting rod has the same size as the threaded hole and is provided with matching threads on the adjusting rod; a damping spring is connected to the end of the adjusting rod away from the bottom plate, the adjusting rod is threadedly connected through the bottom plate, the end damping spring of the adjusting rod abuts against the top plate, a protective cylinder is sleeved outside the adjusting rod between the top plate and the bottom plate, the protective cylinder is connected with the top plate, the adjusting rod and the protective cylinder can move relative to each other, and the distance between the top plate and the bottom plate can be adjusted by the adjusting rod.

[0009] Specifically, the protective cylinder is welded on the top plate.

[0010] The protection cylinder is divided into an inner cylinder and an outer cylinder, the inner cylinder is connected to the top plate, the inner cylinder is provided with a clamping block, the outer cylinder is provided with a sliding rail and a transverse clamping groove, when the clamping block is clamped on the sliding rail, the inner cylinder and the outer cylinder can slide relative to each other, and when the clamping block is clamped on the transverse clamping groove, the inner cylinder and the outer cylinder are fixed relative to each other.

[0011] The supporting plate is further provided, and the bottom plate is mounted on the supporting plate.

[0012] The utility model discloses the beneficial effect is:

[0013] The utility model discloses simple structure, convenient production, economic and suitable, can effectively solve the vibration and the problem of excessive local stress that pipeline is empty, prevent the weld of pipeline and produce fatigue failure, and then guarantee the normal operation of pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is structure schematic diagram of the utility model;

[0015] Figure 2 It is bottom structure schematic diagram of the utility model;

[0016] Figure 3 It is the interface overhead view of outer cylinder 1-1';

[0017] Figure 4 It is the interface section view of outer cylinder 1-1';

[0018] In the drawing, 1-top plate, 2-damping spring, 3-adjusting rod, 4-protection cylinder, 41-inner cylinder, 42-outer cylinder, 421-sliding rail, 422-transverse clamping groove, 5-bottom plate, 6-supporting plate, 7-fixing bolt, 8-pipe support, 9-pipeline. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be described below in conjunction with embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Reference Figures 1-2 The utility model provides a technical scheme:

[0021] The adjustable support for preventing pipe from emptying includes a top plate 1, a bottom plate 5 and an adjusting rod 3, the bottom plate 5 is provided with a threaded hole, the adjusting rod 3 is the same size with the threaded hole and is provided with a matching thread, and the two are threaded connected. The adjusting rod 3 is connected with a damping spring 2 at the end away from the bottom plate 5, the damping spring 2 and the adjusting rod 3 pass through the bottom of the bottom plate 5 and contact with the top plate 1, the damping spring 2 and the adjusting rod 3 between the top plate 1 and the bottom plate 5 are partially sleeved with a protective cylinder 4, the inner wall of the protective cylinder 4 is smooth and is divided into an inner cylinder 41 and an outer cylinder 42, the inner wall of the outer cylinder 42 is provided with a sliding rail 421 and a transverse clamping groove 422, the inner cylinder 41 is provided with a clamping block, the clamping block is clamped in the sliding rail 421, and the two are slidingly connected, and the inner cylinder 41 is welded with the top plate 1 for fixation; when the clamping block is clamped in the transverse clamping groove 422, the inner cylinder 41 and the outer cylinder 42 are relatively fixed. The protective cylinder 4 and the adjusting rod 3 can relatively move up and down, but the protective cylinder 4 limits the transverse movement of the adjusting rod 3 to ensure the stability of the device, and the protective cylinder 4 can also share the load of the adjusting rod 3, so that the service life of the device is longer. The damping spring 2 is arranged between the adjusting rod 3 and the top plate 1 for connection, when the pipe 9 generates thermal displacement, the protective cylinder 4 can better cooperate with the pipe 9 to make the top plate 1 and the pipe support 8 form close contact. The bottom plate 5 is fixed on the support plate 6 through fixing bolts 7 on both sides, so as to further disperse the load of the whole support and the pipe 9. The distance between the top plate 1 and the bottom plate 5 can be adjusted by rotating the adjusting rod 3.

[0022] The number of the transverse clamping grooves 422 and the distance between adjacent transverse clamping grooves 422 can be set according to actual conditions.

[0023] Use method:

[0024] The adjustable support is made of common carbon steel or low alloy material by simple processing. At the beginning of designing the steam pipeline 9, the thermal displacement of the π-shaped bend and the empty position is reviewed by reasonable stress calculation, and adjustable supports are added at appropriate positions. When installing the support, the top plate 1 of the support is attached to the pipe support 8 on the pipeline 9, the distance between the top plate 1 and the bottom plate 5 is adjusted by rotating the adjusting rod 3 to adapt to the thermal displacement of the pipeline 9, and finally the bottom plate 5 is fixed on the support plate 6 by the fixing bolt 7. In addition, the damping spring 2 connected between the adjusting rod 3 and the top plate 1 can better adapt to the thermal displacement of the pipeline 9, and ensure that the pipe support 8 and the pipeline 9 are tightly attached. When the pipeline 9 is replaced or not in operation for a long time, in order to ensure the precision of the damping spring 2, the distance between the top plate 1 and the bottom plate 5 needs to be fixed, the outer cylinder 42 is rotated, the inner cylinder 41 is clamped in the transverse clamping groove 422, and the relative sliding between the two is prevented, so that the distance between the top plate 1 and the bottom plate 5 is fixed. At present, the adjustable support has been used for one year, and no pipeline 9 emptying phenomenon is found on the spot, which plays a good anti-emptying effect. The adjustable support can reasonably design the specifications of each part according to the displacement amplitude and load of the π-shaped bend of the steam pipeline 9, and ensure the strength requirement of each part in the use process, and no fatigue failure occurs.

[0025] The above only describes preferred embodiments of the present application, and it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concepts described herein by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.

Claims

1. An adjustable support for preventing pipe detachment, characterized in that: The device includes a top plate (1), a bottom plate (5), and an adjusting rod (3). The bottom plate (5) has a threaded hole, and the adjusting rod (3) is the same size as the threaded hole and has matching threads. A damping spring (2) is connected to the end of the adjusting rod (3) away from the bottom plate (5). The adjusting rod (3) passes through the bottom plate (5) to form a threaded connection, and the damping spring (2) at its end abuts against the top plate (1). A protective sleeve (4) is fitted around the adjusting rod (3) between the top plate (1) and the bottom plate (5). The protective sleeve (4) is connected to the top plate (1). The adjusting rod (3) and the protective sleeve (4) can move relative to each other. The distance between the top plate (1) and the bottom plate (5) can be adjusted by the adjusting rod (3).

2. The adjustable bracket according to claim 1, characterized in that: The protective cylinder (4) is welded onto the top plate (1).

3. The adjustable bracket according to claim 1, characterized in that: The protective cylinder (4) is divided into an inner cylinder (41) and an outer cylinder (42). The inner cylinder (41) is connected to the top plate (1). The inner cylinder (41) is provided with a locking block. The outer cylinder (42) is provided with a slide rail (421) and a transverse locking groove (422). When the locking block is engaged on the slide rail (421), the inner cylinder (41) and the outer cylinder (42) can slide relative to each other. When the locking block is engaged on the transverse locking groove (422), the inner cylinder (41) and the outer cylinder (42) are relatively fixed.

4. The adjustable bracket according to claim 1, characterized in that: It also includes a support plate (6), on which the base plate (5) is mounted.

5. The adjustable bracket according to claim 4, characterized in that: The base plate (5) is provided with fixing bolts (7), and the base plate (5) is installed on the support plate (6) by fixing bolts (7).

Images