Fixing device adapting to thermal expansion and cold contraction of pipeline

Abstract

The utility model belongs to the technical field of pipeline equipment, and particularly relates to a fixing device adapting to thermal expansion and cold contraction of a pipeline, which comprises a plurality of damping mechanisms arranged outside the pipeline along the circumference, each damping mechanism comprises a transmission rod capable of moving along the axial direction, and the transmission rods are correspondingly connected with supporting columns on the outer side of the pipeline. A supporting spring is arranged on the outer side of the transmission rod, a temperature sensor is arranged on the outer side of the pipeline, the damping mechanism is electrically connected with a temperature measuring receiver, and the temperature sensor is electrically connected with the temperature measuring receiver. The damping mechanism is arranged, the magnetorheological damping liquid is used for adapting to thermal expansion and cold contraction of the pipeline, the magnetorheological damping liquid can change the fluid resistance of the magnetorheological damping liquid under the action of magnetic force, and the resistance to the transmission rod is automatically adjusted according to the thermal expansion and cold contraction degree of the pipeline, so that the damping mechanism adapts to thermal expansion and cold contraction of the pipeline, and the service life of the pipeline is prolonged. And the magnetorheological damping liquid has flexible acting force, and the effect of adapting to thermal expansion and cold contraction of the pipeline is better than that of adapting to thermal expansion and cold contraction of the pipeline only through the elastic force of the spring.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline equipment, in particular to a fixing device adapting to the thermal expansion and contraction of pipelines. Background Art

[0002] Pipeline transportation is a mode of transportation that uses pipelines as a means of transportation to transport liquid and gas materials over long distances. It is not only large in transportation volume, economical, reliable, but also can be automatically controlled. In addition to being widely used in long-distance transportation of oil and natural gas, it can also transport ore, coal, and chemicals. Pipeline transportation can save the transit link of water or land transportation, shorten the transportation cycle, reduce transportation costs, and improve transportation efficiency. However, during transportation, the pipeline will inevitably expand and contract with the temperature change of the transported materials, which will greatly reduce the life of the pipeline over time. The device for adapting to the thermal expansion and contraction of the pipeline in the prior art is usually composed of a spring and a piston rod. The main principle is to adapt to the thermal expansion and contraction of the pipeline by the deformation of the spring itself. If it only relies on the spring's own action, when the pipeline frequently expands and contracts, the spring's own elastic force may be affected, so that it is difficult to adapt to the thermal expansion and contraction of the pipeline. Moreover, the spring itself is prone to lose its elasticity over time, and it is necessary to manually go to the pipeline for replacement, which increases costs and is extremely inconvenient. Utility Model Content

[0003] In view of the shortcomings of the existing devices adapting to the thermal expansion and contraction of pipelines, the purpose of the utility model is to provide a fixing device adapting to the thermal expansion and contraction of pipelines to solve the problems raised in the above background technology.

[0004] The purpose of this utility model is to adopt the following technical solutions to achieve:

[0005] A fixing device adapted to the thermal expansion and contraction of a pipeline proposed in the utility model includes a plurality of damping mechanisms arranged along the circumference outside the pipeline, the damping mechanism includes a transmission rod movable along the axial direction, the transmission rod is correspondingly connected to a support column on the outside of the pipeline, a support spring is arranged on the outside of the transmission rod, a temperature sensor is arranged on the outside of the pipeline, the damping mechanism is electrically connected to a temperature measuring receiver, and the temperature sensor is electrically connected to the temperature measuring receiver.

[0006] Furthermore, the damping mechanism includes a magnetorheological box, a magnetic coil and a magnetorheological damping liquid are arranged inside the magnetorheological box, and one end of the transmission rod is slidably arranged in the magnetorheological box.

[0007] Furthermore, a stop edge is provided at one end of the transmission rod close to the support column, the support spring is sleeved on the outside of the transmission rod, one end of the support spring is connected to the stop edge of the transmission rod, and the other end is connected to the magnetorheological box.

[0008] Furthermore, a high temperature resistant rubber pad is provided between the transmission rod and the support column.

[0009] Furthermore, connecting columns are provided on both sides of the damping mechanism, and the connecting columns between two adjacent damping mechanisms are connected by a flange connector.

[0010] Furthermore, the temperature measuring receiver is arranged in an external control module, and an external current adjustment interface is arranged on one of the damping mechanisms, and the external current adjustment interface is electrically connected to the external control module.

[0011] Furthermore, there are four damping mechanisms in total.

[0012] The utility model can obtain the following advantages:

[0013] (1) The utility model is provided with a damping mechanism, which adapts to the thermal expansion and contraction of the pipeline by means of magnetorheological damping liquid. The magnetorheological damping liquid can change its own fluid resistance under the action of magnetic force, and automatically adjust the magnitude of the resistance to the transmission rod according to the thermal expansion and contraction degree of the pipeline, thereby adapting to the thermal expansion and contraction of the pipeline. Moreover, the magnetorheological damping liquid is a flexible force, which has a better effect than adapting to the thermal expansion and contraction of the pipeline only by the elastic force of the spring itself.

[0014] (2) Compared with the prior art structure that only relies on the elastic force of the spring itself to adapt to the thermal expansion and contraction of the pipeline, the support spring in the utility model plays an auxiliary role, the life of the support spring will be greatly improved, the replacement frequency will be reduced, and the replacement cost will be reduced.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of a fixing device which adapts to the thermal expansion and contraction of a pipeline.

[0017] [Reference Signs]

[0018] 1. Pipeline; 2. Damping mechanism; 201. Magnetorheological box; 202. Transmission rod; 3. Connecting column; 4. Flange connector; 5. Support spring; 6. Support column; 7. High temperature resistant rubber pad; 8. External current adjustment interface; 9. External control module. DETAILED DESCRIPTION

[0019] The features and exemplary embodiments of various aspects of the utility model will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without the need for some of these specific details. The following description of the embodiment is only to provide a better understanding of the utility model by showing an example of the utility model. In the accompanying drawings and the following description, at least part of the known and prior art is not shown to avoid unnecessary ambiguity to the utility model; and, for clarity, the size and shape of the part may be exaggerated. The features or characteristics described below can be combined in one or more embodiments in any suitable manner. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or quantity.

[0020] The utility model provides Figure 1 A fixing device that adapts to thermal expansion and contraction of a pipeline is shown, comprising a plurality of damping mechanisms 2 arranged along the circumference outside the pipeline 1, the damping mechanism 2 comprising a transmission rod 202 that can move along the axial direction, the transmission rod 202 is correspondingly connected to a support column 6 on the outside of the pipeline 1, a support spring 5 is arranged on the outside of the transmission rod 202, a temperature sensor is arranged on the outside of the pipeline 1, the damping mechanism 2 is electrically connected to a temperature measuring receiver, the temperature sensor and the temperature measuring receiver are electrically connected (for example: wirelessly connected), and after the temperature sensor sends a signal, it is received by the temperature measuring receiver.

[0021] The damping mechanism 2 includes a magnetorheological box 201, in which a magnetic coil and a magnetorheological damping liquid are arranged. One end of a transmission rod 202 is slidably arranged in the magnetorheological box 201. When the magnetic coil is energized, the resistance of the magnetorheological damping liquid to the transmission rod 202 will increase or decrease accordingly, thereby being able to adapt to the thermal expansion and contraction of the pipeline 1.

[0022] A stop edge is provided at one end of the transmission rod 202 close to the support column 6, and the support spring 5 is sleeved on the outside of the transmission rod 202. One end of the support spring 5 is connected to the stop edge of the transmission rod 202, and the other end is connected to the magnetorheological box 201. The advantage of sleeved support spring 5 is that the elastic force can be made to tend to the axial direction as much as possible, thereby better supporting the transmission rod 202.

[0023] A high temperature resistant rubber pad 7 is provided between the transmission rod 202 and the support column 6; the high temperature resistant rubber pad 7 has the advantage of not only preventing the damping mechanism 2 from being affected when the temperature of the pipeline 1 is too high, but also preventing direct contact between the transmission rod 202 and the support column 6, thereby reducing wear and corrosion and increasing the service life. In other embodiments of the utility model, at least one end surface of the opposite surface of the transmission rod 202 and the support column 6 is provided with a high temperature resistant rubber pad 7.

[0024] Connecting columns 3 are provided on both sides of the damping mechanism 2, and the connecting columns 3 between two adjacent damping mechanisms 2 are connected by flange connectors 4; the advantage of connecting by flange connectors 4 is that when installing the damping mechanism 2, the required supporting points can be reduced, thereby reducing the difficulty of installation.

[0025] The temperature measuring receiver is arranged in the external control module 9, and an external current adjustment interface 8 is arranged on one of the damping mechanisms 2, and the external current adjustment interface 8 is electrically connected to the external control module 9; the external control module 9 can adjust the output current.

[0026] There are four damping mechanisms 2. In other embodiments of the present invention, the number of damping mechanisms 2 and support columns 6 can be adjusted according to specific needs.

[0027] The specific operation of a fixing device adapted to thermal expansion and contraction of a pipeline is as follows:

[0028] In this device, the temperature sensor constantly senses the temperature change of the pipeline 1. When the temperature of the pipeline 1 is sufficient to produce expansion or contraction deformation, the temperature measuring receiver of the external control module 9 receives the signal from the temperature sensor and quickly energizes the magnetic coil in the magnetorheological box 201, thereby changing the fluid resistance of the magnetorheological damping liquid in the magnetorheological box 201, making the resistance of the transmission rod 202 larger or smaller, thereby adapting to the thermal expansion and contraction of the pipeline 1. After the temperature returns to normal, the external control module 9 automatically stops supplying power, and under the action of the support spring 5, the transmission rod 202 returns to its original position.

[0029] The above is only a preferred embodiment of the present invention. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, makes any simple modifications, equivalent changes and modifications to the above embodiments based on the technical essence of the present invention, which still fall within the scope of the technical solution of the present invention.

Claims

1. A fixing device adapted to thermal expansion and contraction of a pipeline, characterized in that: The invention comprises a plurality of damping mechanisms (2) arranged along the circumference outside a pipeline (1), wherein the damping mechanism (2) comprises a transmission rod (202) movable along the axial direction, the transmission rod (202) being correspondingly connected to a support column (6) outside the pipeline (1), a support spring (5) being arranged outside the transmission rod (202), a temperature sensor being arranged outside the pipeline (1), the damping mechanism (2) being electrically connected to a temperature measuring receiver, and the temperature sensor being electrically connected to the temperature measuring receiver.

2. A fixing device adapted to thermal expansion and contraction of a pipeline according to claim 1, characterized in that: The damping mechanism (2) comprises a magnetorheological box (201), a magnetic coil and a magnetorheological damping liquid are arranged inside the magnetorheological box (201), and one end of the transmission rod (202) is slidably arranged in the magnetorheological box (201).

3. A fixing device adapted to thermal expansion and contraction of a pipeline according to claim 2, characterized in that: A stop edge is provided at one end of the transmission rod (202) close to the support column (6); the support spring (5) is sleeved on the outside of the transmission rod (202); one end of the support spring (5) is connected to the stop edge of the transmission rod (202), and the other end is connected to the magnetorheological box (201).

4. A fixing device adapted to thermal expansion and contraction of a pipeline according to claim 1, characterized in that: A high temperature resistant rubber pad (7) is provided between the transmission rod (202) and the support column (6).

5. A fixing device adapted to thermal expansion and contraction of a pipeline according to claim 1, characterized in that: Connecting columns (3) are provided on both sides of the damping mechanism (2), and the connecting columns (3) between two adjacent damping mechanisms (2) are connected via a flange connector (4).

6. A fixing device adapted to thermal expansion and contraction of a pipeline according to claim 1, characterized in that: The temperature measuring receiver is arranged in an external control module (9), and an external current adjustment interface (8) is arranged on one of the damping mechanisms (2), and the external current adjustment interface (8) is electrically connected to the external control module (9).

7. A fixing device adapted to thermal expansion and contraction of a pipeline according to claim 1, characterized in that: A total of four damping mechanisms (2) are provided.

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