Damping and supporting device for waste heat boiler pipeline

Abstract

The utility model discloses a waste heat boiler pipeline damping supporting device which comprises a bottom frame and a lifting plate, the lifting plate is connected with the bottom frame through a height adjusting screw rod and can ascend and descend vertically, two supports are arranged on the lifting plate in a spaced mode, the upper ends of the two supports make contact with connecting plates at the two ends of a semi-circular-ring shell respectively, and the lower ends of the two supports make contact with the connecting plates at the two ends of the semi-circular-ring shell respectively. The other semicircular shell is arranged above the semicircular shells, the two semicircular shells are oppositely arranged to define a circular structure, connecting plates at the two ends of the two semicircular shells are fixed to the support through connecting bolts, a semicircular air bag is arranged in each semicircular shell, and the two semicircular air bags are fixed to the support through connecting bolts. The semicircular air bags are provided with air taps, the air taps penetrate out of the semicircular shell, and the two semicircular air bags define a circular ring shape and can wrap a pipeline. According to the pipeline damping device, the semicircular air bags are adopted as damping elements, the damping elastic index can be adjusted according to the inflation amount, and therefore the damping effect is good, the height of the lifting plate can be adjusted and the adjusted height can be fixed through the height adjusting screw rod, the adjusting nut and the locking nut, and the pipeline damping device is suitable for damping of pipelines with different heights.

Description

Technical Field

[0001] This utility model relates to a pipeline support technology, and in particular to a vibration damping support device for waste heat boiler pipelines. Background Technology

[0002] Waste heat boilers, as the name suggests, are boilers that utilize the residual heat from waste gas, waste materials, or waste liquids in various industrial processes, as well as the heat generated from the combustion of combustible substances, to heat water to a certain temperature. Oil-fired boilers, gas-fired boilers, and coal-fired boilers with waste heat recovery and utilization functions in the smoke box and flue are also called waste heat boilers. Waste heat boilers can produce hot water or steam through waste heat recovery to supply other processes.

[0003] Compared with other types of boilers, waste heat boilers have a special structure and are prone to vibration during operation. Vibration can cause fatigue in the welds between the pipes and headers, increase weld stress, and lead to weld deformation and cracking, causing pipe leaks. To reduce vibration, vibration damping mechanisms are usually installed on the pipe supports. However, the current shortcomings of pipe supports are: 1. The supports cannot be adjusted in height and can only support pipes at one height; 2. Vibration damping uses rubber pads, which have poor adjustability of vibration damping elasticity. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of existing calibration technology and provide a waste heat boiler pipeline vibration damping support device with reasonable design, adjustable shock absorption elasticity and adjustable support height.

[0005] The technical solution of this utility model is:

[0006] A vibration damping support device for waste heat boiler pipelines includes a base frame and a lifting plate. The lifting plate is connected to the base frame via a height adjustment screw and can be raised and lowered. Two supports are spaced apart on the lifting plate. The upper ends of the two supports respectively contact the connecting plates at both ends of a semi-circular outer shell. Another semi-circular outer shell is arranged above the first semi-circular outer shell. The two semi-circular outer shells are arranged opposite each other to form a circular structure. The connecting plates at both ends of the two semi-circular outer shells are fixed to the supports by connecting bolts. A semi-circular airbag is provided inside each semi-circular outer shell. The semi-circular airbag is equipped with an air nozzle that passes through the semi-circular outer shell and exits. The two semi-circular airbags form a circular shape, which can wrap around the pipeline.

[0007] The cross-section of the semi-circular airbag is flat, and heat insulation boards are attached at intervals to the inner ring surface of the semi-circular airbag. The heat insulation boards are made of polyurethane foam board, polystyrene board or rock wool board.

[0008] The lower end of the height adjustment screw is fixed to the upper end face of the base frame. An adjusting nut and a locking nut are respectively provided on the height adjustment screw, and the adjusting nut and the locking nut are in contact with the two surfaces of the lifting plate.

[0009] A guide mechanism is provided between the base frame and the lifting plate. The guide mechanism includes a guide post and a guide hole. The lifting plate is provided with the guide hole. The lower end of the guide post is connected to the upper end face of the base frame, and the upper end of the guide post is inserted into the guide hole. The two are slidably engaged.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model uses a semi-circular airbag as a shock-absorbing element. The elastic index of the shock absorption can be adjusted according to the amount of air inflated, thus achieving a good shock absorption effect.

[0012] 2. This utility model adopts two semi-circular outer shells and a semi-circular airbag, which can be easily disassembled and assembled, and is convenient and quick to wrap around or detach from the pipeline.

[0013] 3. This utility model utilizes a height adjustment screw, an adjustment nut, and a locking nut to adjust the height of the lifting plate and fix the adjusted height, making it suitable for vibration damping of pipes at different heights.

[0014] 4. This utility model has a guide mechanism between the base frame and the lifting plate, which can prevent deviation and ensure the consistency of the up and down movement.

[0015] 5. This utility model has a reasonable design, adjustable shock absorption elasticity and adjustable support height. It has a wide range of applications, is easy to promote and implement, and has good economic benefits. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a vibration damping support device for waste heat boiler pipes.

[0017] Figure 2 for Figure 1 A partial side sectional view of a vibration damping support device for a waste heat boiler pipeline is shown.

[0018] Figure 3 for Figure 1 The image shows a partial front sectional view of a vibration damping support device for waste heat boiler pipes. Detailed Implementation

[0019] Example 1: See Figure 1 -- Figure 3In the diagram, 1-base frame, 2-guide column, 3-lifting plate, 4-height adjustment screw, 5-support, 6-semi-circular outer shell, 7-semi-circular airbag, 8-heat insulation plate, 9-air nozzle, 10-pipe, 11-bolt hole.

[0020] A vibration damping support device for waste heat boiler pipes includes a base frame 1 and a lifting plate 3. The base frame 1 can adopt various structural forms; the figure shows a structure with a top plate and three legs, which is just one example. Many other structures can also be used as long as they provide support. The lifting plate 3 is connected to the base frame 1 via a height adjusting screw 4, allowing it to move up and down. Two supports 5 are spaced apart on the lifting plate 3. The upper ends of the two supports 5 are respectively in contact with the connecting plates at both ends of a semi-circular outer shell 6. The connecting plates are provided with bolt holes 11 to facilitate the connection of bolts. Another semi-circular outer shell 6 (also referred to as: upper semi-circular outer shell and lower semi-circular outer shell) is provided above the semi-circular outer shell 6. The two semi-circular outer shells 6 are arranged opposite each other to form a circular structure. The connecting plates at both ends of the two semi-circular outer shells 6 are fixed to the supports 5 by connecting bolts. A semi-circular airbag 7 is provided inside each semi-circular outer shell 6. The semi-circular airbag 7 is provided with an air nozzle 9, which passes through the semi-circular outer shell 6 and exits. The two semi-circular airbags 7 form a circular shape, which can wrap around the pipe 10.

[0021] The semi-circular outer shell 6 includes a semi-circular outer plate and two semi-circular end plates. The three plates can be processed separately and then welded together. Alternatively, other structural forms can be adopted to form a semi-circular cavity that can accommodate a semi-circular airbag 7.

[0022] Preferred solution: The cross-section of the semi-circular airbag 7 is flat, and heat insulation plates 8 are attached at intervals on the inner ring surface of the semi-circular airbag 7 so that the airbag does not directly contact the pipe 10. The heat insulation plates 8 are made of polyurethane foam board, polystyrene board or rock wool board. Of course, other materials can also be used, which are not listed one by one.

[0023] Preferred embodiment: The lower end of the height adjusting screw 4 is fixed to the upper end face of the base frame 1. An adjusting nut and a locking nut are respectively provided on the height adjusting screw 4, and the adjusting nut and locking nut contact the two surfaces of the lifting plate 3 respectively. The adjusting nut determines the height of the lifting plate 3, and the locking nut locks this height to prevent changes. At least three height adjusting screws 4 are used to support a plane; in this embodiment, four are used, evenly distributed at the four corners.

[0024] Preferred embodiment: A guide mechanism is provided between the base frame 1 and the lifting plate 3. The guide mechanism includes guide posts 2 and guide holes. The lifting plate 3 is provided with guide holes (not shown in the figure). The lower end of the guide post 2 is connected to the upper end face of the base frame 1, and the upper end of the guide post 2 is inserted into the guide hole. The two are in sliding engagement. The number of guide posts 2 is at least two to achieve balance. In this embodiment, four are used and evenly distributed at the four corners.

[0025] In use, place the base frame 1 below the pipe 10, and place a semi-circular outer shell 6 on the support 5. The semi-circular outer shell 6 contains a semi-circular airbag 7. Loosen the locking nut and turn the adjusting nut to raise the lifting plate 3 until the semi-circular airbag 7 contacts the pipe 10 or leaves a small gap. Turn the locking nut to lock the height. At this time, fasten the other semi-circular outer shell 6 onto the pipe 10, and fix the two semi-circular outer shells 6 together on the support 5 with connecting bolts. Use a high-pressure air source to inflate the two semi-circular airbags 7 through the air nozzles 9 to wrap around the pipe 10. The airbags play a shock-absorbing role.

[0026] Of course, a pressure gauge can also be installed on the airbag to observe the air pressure. When the pressure changes, it can be re-inflated to ensure that the required air pressure is maintained.

[0027] During dismantling, the operation is reversed. First, the gas in the semi-circular airbag 7 is discharged. Then, the connecting bolts are removed to remove the upper semi-circular outer shell 6. Finally, the lifting plate 3 is lowered until the lower semi-circular outer shell 6 is detached from the pipe 10. This device can be reused, reducing the cost of use.

[0028] Example 2: This example is basically the same as Example 1, and the similarities will not be repeated. The difference is that the semi-circular outer shell and the semi-circular airbag adopt a series of specifications with different sizes to adapt to pipes of different diameters. The only requirement is that the connecting plates at both ends of all semi-circular outer shells can overlap with the support for easy fixed connection.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications made based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A vibration damping support device for waste heat boiler pipes, comprising a base frame and a lifting plate, characterized in that: The lifting plate is connected to the base frame via a height adjustment screw, allowing it to move up and down. Two supports are spaced apart on the lifting plate, with the upper ends of each support contacting the connecting plates at both ends of a semi-circular outer shell. Another semi-circular outer shell is positioned above the first, and the two shells face each other, forming a circular structure. The connecting plates at both ends of the two shells are fixed to the supports by connecting bolts. Each shell contains a semi-circular airbag with an air nozzle that extends through the shell. The two airbags form a ring shape, capable of enclosing the pipe.

2. The vibration damping support device for waste heat boiler pipes according to claim 1, characterized in that: The cross-section of the semi-circular airbag is flat, and heat insulation boards are attached at intervals to the inner ring surface of the semi-circular airbag. The heat insulation boards are made of polyurethane foam board, polystyrene board or rock wool board.

3. The vibration damping support device for waste heat boiler pipes according to claim 1, characterized in that: The lower end of the height adjustment screw is fixed to the upper end face of the base frame. An adjusting nut and a locking nut are respectively provided on the height adjustment screw, and the adjusting nut and the locking nut are in contact with the two surfaces of the lifting plate.

4. The vibration damping support device for waste heat boiler pipes according to claim 1, characterized in that: A guide mechanism is provided between the base frame and the lifting plate. The guide mechanism includes a guide post and a guide hole. The lifting plate is provided with the guide hole. The lower end of the guide post is connected to the upper end face of the base frame, and the upper end of the guide post is inserted into the guide hole. The two are slidably engaged.

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