A throttling device for an acid distributor with adjustable flow rate and reduced resistance and vibration

Abstract

The present invention relates to the technical field of acid distributors, and discloses a throttling device for an adjustable flow type and resistance reduction and vibration damping of an acid distributor, comprising: a single orifice plate, a cylinder body, a spherical crown adjusting plate, a rotating shaft, a shaft rod and a perforated plate; wherein, the single orifice plate, the cylinder body and the perforated plate are welded to form a cylindrical chamber; the spherical crown adjusting plate is installed in the cylindrical chamber through the rotating shaft and the shaft rod. The present invention realizes precise flow control through the adjustable spherical crown adjusting plate, reduces pressure loss and pipeline vibration through the perforated plate design, thereby improving the acid distribution uniformity and the energy efficiency of the system, and at the same time prolonging the service life of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of acid distributors, and particularly to a throttling device for an adjustable flow type and resistance reduction and vibration damping of an acid distributor. Background Art

[0002] Most of the existing orifice plates for regulating the flow rate of acid distributors are of single orifice plate structure. The disadvantage of a single orifice throttling orifice plate is that it does not have a flow regulation function. The flow rate in the pipeline depends on the orifice diameter of the orifice plate. During the operation of the equipment, it is difficult for manual operation to adjust the flow rate in the pipeline through the orifice plate. Under the traditional single orifice plate structure, the flow area in the pipeline changes greatly. When the ratio of the thickness of the orifice plate to the orifice diameter of the orifice plate is smaller, the orifice pressure loss coefficient ε will be larger, resulting in an increase in the frictional resistance loss in the pipeline and an increase in the energy consumption of the entire system. When sulfuric acid flows into the back pressure side of the single orifice plate, the sulfuric acid in the pipeline is in a turbulent state, which will cause serious vibration of the pipeline. This is also a negative impact brought by the current single orifice plate. At present, there is a need to develop a throttling device with a flow regulation function and capable of reducing resistance and reducing pipeline vibration. Summary of the Invention

[0003] Aiming at the above existing technical deficiencies, the technical problem to be solved by the present invention is to provide a throttling device for an adjustable flow type and resistance reduction and vibration damping of an acid distributor, aiming to solve the problems of non-adjustable flow rate, large resistance loss and serious pipeline vibration existing in the existing acid distributor.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a throttling device for an adjustable flow type and resistance reduction and vibration damping of an acid distributor, including: a single orifice plate, a cylinder, a spherical crown adjusting plate, a rotating shaft, a shaft rod and a perforated plate;

[0005] Among them, the single orifice plate, the cylinder and the perforated plate are welded to form a cylindrical chamber;

[0006] The spherical crown adjusting plate is installed in the cylindrical chamber through the rotating shaft and the shaft rod.

[0007] Further, there is a main round hole with a diameter of d in the center of the perforated plate;

[0008] Around the main round hole, a plurality of secondary round holes with a diameter of d1 are evenly distributed.

[0009] Further, the diameter d of the main round hole is set according to the process flow rate;

[0010] The diameter of the secondary round hole .

[0011] Further, it further includes a support ring, which is arranged in the cylinder and used to fix the shaft rod to ensure the stability of the shaft rod during rotation.

[0012] Further, it also includes a stuffing gland and packing of polytetrafluoroethylene;

[0013] The stuffing gland is installed on the cylinder body, used to compress the packing of polytetrafluoroethylene, ensure the sealing effect at the shaft rod, and facilitate the replacement of the seal during disassembly and maintenance.

[0014] Further, it also includes a column spring, which is arranged between the shaft rod and the stuffing gland, used to provide a pre-tightening force, ensure the smooth rotation of the shaft rod during operation, and prevent the shaft rod from loosening due to external vibration.

[0015] Further, the packing of polytetrafluoroethylene is arranged around the shaft rod and used in cooperation with the stuffing gland, used to prevent the leakage of sulfuric acid and provide good sealing performance.

[0016] Further, it also includes a handle, which is connected to the shaft rod and used to rotate the shaft rod.

[0017] An acid distributor includes:

[0018] The main acid pipe, the acid distributing branch pipes, and the acid distributing tanks are communicated in sequence; among them, several acid distributing branch pipes are connected to the main acid pipe, and two symmetric acid distributing branch pipes form a group, and each group of acid distributing branch pipes is provided with a corresponding acid distributing tank; a throttling device for the acid distributor with adjustable flow and resistance reduction and vibration damping is installed between the main acid pipe and the acid distributing pipe.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention can adjust the rotation angle of the spherical crown adjusting plate according to the height of the liquid level in each acid distributing tank. During the rotation of the spherical crown adjusting plate, the cross-sectional area of the sulfuric acid flowing through the single-hole plate gradually increases from small to large, changing the flow rate in the acid distributing branch pipes, making the liquid level height in each acid distributing tank consistent, and indirectly and accurately controlling the acid distribution uniformity of the acid distributing pipe.

[0021] 2. The porous plate of the present invention reduces the pressure loss when sulfuric acid flows through the throttling orifice plate, reduces the pressure drop of the acid distributor. In engineering applications, it not only reduces the energy loss of the system, achieves the effect of energy conservation and emission reduction, but also greatly reduces the vibration of the pipeline, reduces the fatigue damage of the main acid pipe and the acid distributing branch pipes, and improves the service life of the acid distributor. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1Schematic three-dimensional structure diagram of a throttling device with adjustable flow rate and reduced resistance and vibration damping for an acid splitter provided by an embodiment of the present invention.

[0024] Figure 2 is Figure 1 front view of.

[0025] Figure 3 is Figure 2 A - A cross-sectional schematic diagram of.

[0026] Figure 4 is Figure 3 B - B cross-sectional schematic diagram of;

[0027] Figure 5 is a schematic diagram of an acid splitter using a throttling device with adjustable flow rate and reduced resistance and vibration damping for an acid splitter provided by this embodiment.

[0028] Explanation of reference numerals: 100, main acid pipe; 200, a throttling device with adjustable flow rate and reduced resistance and vibration damping for an acid splitter; 300, acid distribution branch pipe; 400, acid distribution tank; 201, handle; 202, packing gland; 203, single-hole plate; 204, column spring; 205, polytetrafluoroethylene packing; 206, support ring; 207, shaft rod; 208, spherical crown adjusting plate; 209, rotating shaft; 210, perforated plate; 211, cylinder. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0030] As Figures 1 to 5 shown, this embodiment provides a throttling device 200 with adjustable flow rate and reduced resistance and vibration damping for an acid splitter. As Figures 1 to 3 shown, this throttling device is composed of a single-hole plate 203, a cylinder 211, a spherical crown adjusting plate 208, a rotating shaft 209, a shaft rod 207, a perforated plate 210, a support ring 206, a packing gland 202, a tight polytetrafluoroethylene packing 205, a column spring 204, and a handle 201; among them, the single-hole plate 203, the cylinder 211, and the perforated plate 210 are welded to form a cylindrical chamber; the spherical crown adjusting plate 208 is installed in the cylindrical chamber through the rotating shaft 209 and the shaft rod 207.

[0031] Specifically, as Figure 3As shown in the figure, the support ring 206 is arranged inside the cylinder body 211 and is used to fix the shaft rod 207 to ensure the stability of the shaft rod 207 during rotation; the packing gland 202 is installed on the cylinder body 211 and is used to compress the polytetrafluoroethylene packing 205 to ensure the sealing effect at the rotating shaft 209 and facilitate the replacement of the seal during disassembly and maintenance; the column spring 204 is arranged between the rotating shaft 209 and the packing gland 202 and is used to provide a pre-tightening force to ensure the smooth rotation of the rotating shaft 209 during operation and prevent the rotating shaft 209 from loosening due to external vibration; the polytetrafluoroethylene packing 205 is arranged around the shaft rod 207 and is used in cooperation with the packing gland 202 to prevent sulfuric acid leakage and provide good sealing performance; the handle 201 is connected to the shaft rod 207 and is used to rotate the shaft rod 207.

[0032] As Figure 4 shown, one end of the rotating shaft 209 is fixed inside the cylinder body, and the other end is connected to the spherical crown adjusting plate 208 by bolts; preferably, there is a main circular hole with a diameter of d in the center of the perforated plate 210; around the main circular hole, 8 secondary circular holes with a diameter of d1 are evenly distributed. The diameter d of the main circular hole is set according to the process flow rate; the diameter of the secondary circular hole .

[0033] During installation, weld the single-hole plate 203, the cylinder body 211 and the perforated plate 210: First, weld the single-hole plate 203 and the perforated plate 210 to both ends of the cylinder body 211 respectively to form a closed cylindrical chamber; install the spherical crown adjusting plate 208, and install the spherical crown adjusting plate 208 inside the cylinder body 211 through the rotating shaft 209 to ensure that the spherical crown adjusting plate 208 can rotate freely; install and connect the shaft rod 207 and the spherical crown adjusting plate 208, connect the shaft rod 207 and the spherical crown adjusting plate 208, and drive the spherical crown adjusting plate 208 to rotate through the shaft rod 207; assemble the handle 201, connect one end of the handle 201 to the shaft rod 207 to ensure that the handle 201 can drive the shaft rod 207 to rotate; place the polytetrafluoroethylene packing 205 and the column spring 204 above the cylinder body 211, place the polytetrafluoroethylene packing 205 between the shaft rod 207 and the packing gland 202, and place the column spring 204 above it; fix the packing gland 202 on the cylinder body 211 to ensure the sealing of the shaft rod 207 and facilitate the replacement of the seal during maintenance.

[0034] As Figure 5As shown in the figure, this embodiment also provides a acid distributor adopting a throttling device 200 with adjustable flow rate and reduced resistance and vibration damping of the present invention, which includes: an acid main pipe 100, acid distribution branch pipes 300, and acid distribution tanks 400 are communicated in sequence; among them, a number of acid distribution branch pipes 300 are connected to the acid main pipe 100, and two symmetric acid distribution branch pipes 300 are taken as a group, and each group of acid distribution branch pipes 300 is provided with a corresponding acid distribution tank 400; the throttling device 200 with adjustable flow rate and reduced resistance and vibration damping for the acid distributor is installed between the acid main pipe 100 and the acid distribution pipe.

[0035] During use, rotating the handle 201 drives the shaft rod 207 to rotate. The shaft rod 207 drives the spherical crown adjusting plate 208 to rotate through the rotating shaft 209, changing the position of the spherical crown adjusting plate 208 relative to the single-hole plate 203, thereby changing the cross-sectional area of sulfuric acid passing through the single-hole plate 203; among them, the rotation angle of the spherical crown adjusting plate 208 is adjusted according to the height of the liquid level in the acid distribution tank 400, so that the cross-sectional area of sulfuric acid flowing through the single-hole plate 203 gradually increases from small to large, adjusting the flow rate in the acid distribution branch pipe 300 until the liquid level height of each acid distribution tank 400 is the same; the porous plate 210 is used to reduce the pressure loss when sulfuric acid flows through the throttling orifice plate, reduce the pressure drop of the acid distributor, thereby reducing the energy loss of the system; the design of the porous plate 210 reduces the backpressure side reflux area, shortens the time and path required to reach the laminar flow state from the turbulent state, thereby reducing pipeline vibration, reducing the fatigue damage of the acid main pipe 100 and the acid distribution branch pipes 300, and improving the service life of the acid distributor.

[0036] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A throttling device for an acid distributor with adjustable flow and resistance and vibration reduction, characterized in that: include: Single hole plate, cylinder, ball crown adjustment plate, rotating shaft, shaft and multi-hole plate; Wherein, the single-hole plate, the cylinder and the multi-hole plate are welded to form a cylindrical chamber; The spherical crown adjustment plate is installed in the cylindrical chamber through a rotating shaft and a shaft; There is a main circular hole with a diameter of d in the center of the perforated plate; A number of secondary circular holes with a diameter of d1 are evenly distributed around the main circular hole; The diameter d of the main circular hole is set according to the process flow rate; The diameter of the secondary circular hole ; It also includes a support ring, which is arranged in the cylinder and is used to fix the shaft rod to ensure the stability of the shaft rod during rotation; Also includes packing gland and tight PTFE packing; The packing gland is installed on the cylinder body and is used to compress the polytetrafluoroethylene packing to ensure the sealing effect at the shaft and facilitate the replacement of the seal during disassembly and maintenance; It also includes a column spring, which is arranged between the shaft and the packing gland and is used to provide a pre-tightening force to ensure smooth rotation of the shaft during operation and prevent the shaft from loosening due to external vibration; The polytetrafluoroethylene packing is arranged around the shaft and used in conjunction with a packing gland to prevent sulfuric acid leakage and provide good sealing performance.

2. A throttling device for an acid distributor with adjustable flow and resistance and vibration reduction as claimed in claim 1, characterized in that: Also included is a handle connected to the shaft for rotating the shaft.

3. An acid distributor, characterized in that: include: The acid main pipe, the acid distribution branch pipes, and the acid distribution tank are connected in sequence; wherein, the acid main pipe is connected to a plurality of acid distribution branch pipes, two symmetrical acid distribution branch pipes form a group, and each group of acid branch pipes is provided with a corresponding acid distribution tank; a throttling device for an acid distributor with adjustable flow and resistance reduction and vibration reduction as described in any one of claims 1 to 2 is installed between the acid main pipe and the acid distribution branch pipes.

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