Variable-diameter booster pipe section structure of dense-phase conveying system

Abstract

The utility model discloses a variable diameter booster pipe section structure of dense phase conveying system, including pipeline, two annular inflatable pads are assembled in the pipeline, four support rods are assembled on the lower wall of pipeline, four the lower end of support rod is assembled with the bearing plate, two assembly boxes are assembled on the upper wall surface of bearing plate, small electric air pump is respectively assembled in each assembly box, the air outlet end of each small electric air pump is detachably assembled with the guide pipe between each annular inflatable pad, electric valve is respectively assembled on each guide pipe, and the side wall of each assembly box is respectively processed with the through -opening, the utility model relates to variable diameter booster pipe section technical field of dense phase conveying system, and some beneficial effects.

Description

Technical Field

[0001] This utility model relates to the technical field of variable diameter booster pipe sections in dense phase conveying systems, specifically the structure of variable diameter booster pipe sections in dense phase conveying systems. Background Technology

[0002] Dense phase conveying systems, with their unique advantages in material transport, are widely used in many industries such as chemical, power, food, and pharmaceutical. In the chemical industry, they are commonly used to transport polyethylene and polypropylene granules, ensuring the integrity of the materials. In the power industry, the transport of pulverized coal and fly ash also relies on dense phase conveying systems to achieve efficient and environmentally friendly operations. In dense phase conveying systems, the variable diameter booster pipe section is a key component that plays a crucial role in the system's performance.

[0003] The diameter ratio and contraction method of existing variable-diameter booster pipes cannot be changed after manufacturing. However, in actual production, when the material characteristics or conveying conditions do not match the pipe design parameters, the material flow rate in the pipe may be unstable, leading to material blockage. Once blocked, not only will the production process be interrupted, but a lot of manpower and resources will be needed to clear the blockage, increasing production costs and downtime. At the same time, the inability to precisely adjust the pressure and flow rate according to actual needs may result in excessive pressure loss, which will significantly increase system energy consumption and reduce energy utilization efficiency. Mismatched flow rate and pressure will also aggravate the friction between the material and the inner wall of the pipe, leading to increased pipe wear, shortening the pipe's service life, and increasing equipment maintenance and replacement costs. There may already be technical solutions to solve the above-mentioned technical problems. Therefore, this application aims to provide a replacement or alternative technical solution. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a variable diameter booster pipe section structure for a dense phase conveying system. This solves the problem that the diameter ratio and contraction method of existing variable diameter booster pipes cannot be changed after manufacturing. However, in actual production, when the material characteristics or conveying conditions do not match the pipeline design parameters, the material flow rate within the pipeline may become unstable, leading to material blockage. Once blocked, not only will the production process be interrupted, but a significant amount of manpower and resources will be required for unblocking, increasing production costs and downtime. Furthermore, the inability to precisely adjust pressure and flow rate according to actual needs may result in excessive pressure loss, significantly increasing system energy consumption and reducing energy efficiency. Mismatched flow rates and pressures can also exacerbate friction between the material and the inner wall of the pipeline, leading to increased pipeline wear, shortened pipeline lifespan, and increased equipment maintenance and replacement costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a variable diameter pressurizing pipe section structure for a dense phase conveying system, comprising a pipe, wherein two annular air cushions are installed inside the pipe, four support rods are installed on the lower wall of the pipe, a bearing plate is installed on the lower end of the four support rods, two assembly boxes are installed on the upper wall of the bearing plate, each assembly box is equipped with a small electric air pump, a conduit is detachably installed between the air outlet of each small electric air pump and each annular air cushion, an electric valve is installed on each conduit, and an opening is machined on the side wall of each assembly box.

[0006] Preferably, each of the openings is detachably fitted with an air filter.

[0007] Preferably, a first flange is detachably mounted on one end of the pipe, an air flow meter is detachably mounted on the other end of the pipe, and a second flange is detachably mounted on the end face of the air flow meter.

[0008] Preferably, an elastic rubber ring is fitted between the two annular inflatable pads.

[0009] Preferably, each of the conduits and pipes is fitted with a rubber sealing ring.

[0010] Preferably, a limiting plate is installed on the upper wall of each assembly box and on both sides of each conduit, and two springs are installed on the opposite wall of each limiting plate, with a support plate installed between each pair of springs.

[0011] Beneficial effects

[0012] This invention provides a variable diameter booster pipe section structure for a dense phase conveying system. It offers the following advantages: This device enables real-time monitoring of the air velocity within the pipe based on the conveying conditions of different materials. By matching the air velocity with the corresponding material, and inflating the annular air cushion using an electric air pump, the annular air cushion expands, thus changing the pipe's diameter. The pipe's diameter can be adjusted in real-time according to different usage requirements, offering high flexibility. The annular air cushion also protects the inner wall of the pipe from wear. This solves the problem that the diameter ratio and shrinkage method of existing variable diameter booster pipes cannot be changed after manufacturing. However, in actual production, when the material characteristics or conveying... When operating conditions and pipeline design parameters do not match, the material flow rate inside the pipeline may become unstable, leading to material blockage. Once blocked, not only will the production process be interrupted, but a large amount of manpower and resources will be required for unblocking, increasing production costs and downtime. At the same time, the inability to accurately adjust pressure and flow rate according to actual needs may result in excessive pressure loss, significantly increasing system energy consumption and reducing energy efficiency. Mismatched flow rates and pressures will also exacerbate friction between the material and the inner wall of the pipeline, leading to accelerated pipeline wear, shortening pipeline lifespan, and increasing equipment maintenance and replacement costs. Attached Figure Description

[0013] Figure 1 This is a front view cross-sectional structural diagram of the variable diameter booster pipe section structure of the dense phase conveying system of this utility model under reduced pressure operation.

[0014] Figure 2 This is a top-view cross-sectional view of the variable-diameter booster pipe section structure of the dense phase conveying system described in this utility model, showing its booster operation.

[0015] Figure 3 This is a side cross-sectional view of the variable diameter booster pipe section structure of the dense phase conveying system of this utility model under reduced pressure operation.

[0016] In the diagram: 1-pipe; 2-annular air cushion; 3-support rod; 4-bearing plate; 5-assembly box; 6-small electric air pump; 7-conduit; 8-electric valve; 9-air filter; 10-first flange; 11-air flow meter; 12-second flange; 13-elastic rubber ring; 14-rubber sealing ring; 15-limiting plate; 16-spring; 17-support plate. Detailed Implementation

[0017] 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.

[0018] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example: Refer to Figure 1-3 The variable-diameter booster pipe section structure of the dense phase conveying system includes a pipe 1, with two annular air cushions 2 installed inside the pipe 1. Four support rods 3 are installed on the lower wall of the pipe 1, and a bearing plate 4 is installed on the lower end of the four support rods 3. Two assembly boxes 5 are installed on the upper wall of the bearing plate 4. Each assembly box 5 contains a small electric air pump 6. A conduit 7 is detachably installed between the air outlet of each small electric air pump 6 and each annular air cushion 2. An electric valve 8 is installed on each conduit 7. An opening is machined on the side wall of each assembly box 5; an air valve is detachably installed in each opening. Air filter 9; a first flange 10 is detachably mounted on one end of the pipe 1, an air flow meter 11 is detachably mounted on the other end of the pipe, and a second flange 12 is detachably mounted on the end face of the air flow meter 11; an elastic rubber ring 13 is mounted between the two annular air pads 2; a rubber sealing ring 14 is mounted between each conduit 7 and the pipe 1; a limit plate 15 is mounted on the upper wall of each assembly box 5 and on both sides of each conduit 7, two springs 16 are mounted on the opposite wall of each limit plate 15, and a support plate 17 is mounted between each two springs 16;

[0021] The specific working principle is as follows:

[0022] The operator connects and assembles the device via the first flange 10 installed on pipe 1 and the second flange 12 installed on the air flow meter 11. After assembly, the external power supply is turned on to power the device. Depending on the usage, the operator controls the operation via the programmable controller installed on it. The small electric air pump 6 installed in one of the assembly boxes 5 operates, drawing in external air and injecting it into the annular air cushion 2 inside pipe 1 through the conduit 7. The annular air cushion 2 begins to expand, and the flow rate value on the air flow meter 11 is observed. When the optimal flow rate range is reached, the small electric air pump 6 stops operating, and the electric valve 8 installed on the conduit 7 closes to seal the gas. The inside of pipe 1 has a larger space at the air inlet and a smaller space at the air outlet, achieving variable diameter pressurization. When depressurization is required, one of the electric valves 8 opens, and the small electric air pump 6 draws air from the expanded annular air cushion 2 through the conduit 7. The air is compressed, and another small electric air pump 6 draws air and injects it into another annular air pad 2, which expands. Another electric valve 8 closes to seal the pipe. The inside of the pipe has a small air inlet space and a large air outlet space, realizing the diameter change and pressure reduction. The diameter change state inside the pipe 1 can be flexibly adjusted to achieve different inner diameter changes, which is highly flexible. The elastic rubber ring 13 is used to increase the sealing and prevent leakage. The spring 16 on the limit plate 15 pushes the support plate 17 to move relative to each other to assist in fixing the conduit 7 and prevent the conduit 7 from shaking and falling off. The air filter screen 9 is used to filter impurities in the air and prevent blockage of the conduit 7. The elastic rubber ring 13 is used to connect the two annular air pads 2 and prevent the accumulation of materials in the gap between the two annular air pads 2. The annular air pads 2 and the elastic rubber ring 13 are all made of polyurethane elastomer. The support rod 3 and the bearing plate 4 are used to assist in supporting the pipe 1 to prevent the pipe from being suspended and to improve the stability of the pipe 1.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable diameter booster pipe section structure for a dense phase conveying system, comprising a pipe (1), characterized in that, The pipe (1) is equipped with two annular air cushions (2), and four support rods (3) are installed on the lower wall of the pipe (1). A bearing plate (4) is installed on the lower end of the four support rods (3). Two assembly boxes (5) are installed on the upper wall of the bearing plate (4). Each assembly box (5) is equipped with a small electric air pump (6). A conduit (7) is detachably installed between the air outlet of each small electric air pump (6) and each annular air cushion (2). An electric valve (8) is installed on each conduit (7). An opening is machined on the side wall of each assembly box (5).

2. The variable diameter booster pipe section structure of the dense phase conveying system according to claim 1, characterized in that, Each of the aforementioned openings is detachably fitted with an air filter (9).

3. The variable diameter booster pipe section structure of the dense phase conveying system according to claim 1, characterized in that, A first flange (10) is detachably mounted on one end of the pipe (1), an air flow meter (11) is detachably mounted on the other end face of the pipe, and a second flange (12) is detachably mounted on the end face of the air flow meter (11).

4. The variable diameter booster pipe section structure of the dense phase conveying system according to claim 1, characterized in that, An elastic rubber ring (13) is fitted between the two annular air cushions (2).

5. The variable diameter booster pipe section structure of the dense phase conveying system according to claim 1, characterized in that, Each of the conduits (7) and the pipe (1) is fitted with a rubber sealing ring (14).

6. The variable diameter booster pipe section structure of the dense phase conveying system according to claim 1, characterized in that, Each assembly box (5) has a limiting plate (15) mounted on its upper wall and on both sides of each conduit (7). Each limiting plate (15) has two springs (16) mounted on its opposite wall. A support plate (17) is mounted between each pair of springs (16).

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