Flow-adjustable, resistance-reducing and vibration-reducing throttling device for acid distributor

Abstract

The invention relates to the technical field of acid distributors, and discloses a flow-adjustable, resistance-reducing and vibration-reducing throttling device for an acid distributor, which comprises a single-pore plate, a barrel, a spherical crown adjusting plate, a rotating shaft, a shaft rod and a porous plate, wherein the single-pore plate, the barrel body and the porous plate are welded to form a cylindrical cavity; the spherical crown adjusting plate is installed in the cylindrical cavity through a rotating shaft and a shaft rod. Accurate flow control is realized through the adjustable spherical crown adjusting plate, and pressure loss and pipeline vibration are reduced through the design of the porous plate, so that the acid distribution uniformity and the energy efficiency of the system are improved, and meanwhile, the service life of equipment is prolonged.

Description

Technical Field

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

[0002] Most of the throttling orifices used to adjust the flow in the existing acid distributor are single-hole plate structures. The disadvantage of single-hole throttling orifices is that they do not have the function of flow regulation. The flow in the pipeline depends on the aperture of the orifice plate. During the operation of the equipment, it is difficult to manually adjust the flow in the pipeline through the throttling orifice plate. Under the traditional single-hole plate structure, the flow area in the pipeline varies greatly. When the ratio of the thickness of the throttling orifice plate to the aperture of the throttling orifice plate is smaller, the pressure loss coefficient ε of the orifice plate will be larger, resulting in an increase in the resistance loss along the pipeline, which increases the energy consumption of the entire system. When sulfuric acid flows into the back pressure side of the single-hole plate, the sulfuric acid in the pipeline becomes turbulent, which will cause severe vibration in the pipeline. This is also the negative impact of the current single-hole plate. At present, it is necessary to develop a throttling device that has a flow regulation function and can reduce resistance and pipeline vibration. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the technical problem to be solved by the present invention is to provide a throttling device for an acid distributor with adjustable flow and resistance reduction and vibration reduction, aiming to solve the problems of non-adjustable flow, large resistance loss and severe pipeline vibration in the existing acid distributor.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a throttling device for an acid distributor with adjustable flow and resistance and vibration reduction, comprising: a single-hole plate, a cylinder, a spherical crown adjustment plate, a rotating shaft, a shaft and a porous 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 rod.

[0005] Furthermore, there is a main circular hole with a diameter d in the center of the porous plate; A number of secondary circular holes with a diameter of d1 are evenly distributed around the main circular hole.

[0006] Furthermore, the diameter d of the main circular hole is set according to the process flow rate; The diameter of the secondary circular hole d1= .

[0007] Furthermore, 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.

[0008] Further, it also includes a packing gland and a tight polytetrafluoroethylene 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 rod, and is convenient for replacing the sealing parts during disassembly and maintenance.

[0009] Furthermore, it also includes a column spring, which is arranged between the shaft rod and the packing gland, and is used to provide a pre-tightening force to ensure smooth rotation of the shaft rod during operation and prevent the shaft rod from loosening due to external vibration.

[0010] Furthermore, 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.

[0011] Furthermore, it also includes a handle, which is connected to the shaft and is used to rotate the shaft.

[0012] An acid distributor, comprising: The acid main pipe, the acid branch pipes and the acid distribution tank are connected in sequence; wherein, the acid main pipe is connected to a plurality of acid branch pipes, two symmetrical acid branch pipes form a group, and each group of acid branch pipes is provided with a corresponding acid distribution tank; a throttling device for adjustable flow and resistance reduction and vibration reduction of the acid distributor is installed between the acid main pipe and the acid distribution pipes.

[0013] The beneficial effects of the present invention are: 1. The present invention can adjust the rotation angle of the spherical cap adjustment plate according to the height of the liquid level in each acid separation tank. During the rotation of the spherical cap adjustment plate, the cross-sectional area of ​​sulfuric acid flowing through the single-hole plate gradually increases from small to large, thereby changing the flow rate in the acid separation branch pipe, making the liquid level height of each acid separation tank consistent, and indirectly and accurately controlling the acid distribution uniformity of the acid distribution pipe.

[0014] 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, and in engineering applications not only reduces the energy loss of the system, achieving the effect of energy saving and emission reduction, but also greatly reduces the vibration of the pipeline, reduces the fatigue damage of the acid main pipe and the acid distribution branch pipe, and increases the service life of the acid distributor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a throttling device for an acid distributor with adjustable flow and reduced resistance and vibration provided in an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Front view of.

[0018] Figure 3 for Figure 2 Schematic diagram of the AA section.

[0019] Figure 4 for Figure 3 BB cross-section diagram; Figure 5 The schematic diagram of an acid distributor is a throttling device for an acid distributor with adjustable flow and reduced resistance and vibration provided by the present embodiment.

[0020] Explanation of the reference numerals: 100, acid main pipe; 200, a throttling device for an acid distributor with adjustable flow and resistance and vibration reduction; 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; 208, ball crown adjustment plate; 209, rotating shaft; 210, porous plate; 211, cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1

[0023] like Figure 1~Figure 5 As shown, this embodiment provides a throttling device 200 for an acid distributor with adjustable flow and reduced resistance and vibration. Figures 1 to 3 As shown, the throttling device consists of a single-hole plate 203, a cylinder 211, a ball crown adjustment plate 208, a rotating shaft 209, a shaft 207, a porous plate 210, a support ring 206, a packing gland 202, a tight polytetrafluoroethylene packing 205, a column spring 204 and a handle 201; wherein the single-hole plate 203, the cylinder 211 and the porous plate 210 are welded to form a cylindrical chamber; the ball crown adjustment plate 208 is installed in the cylindrical chamber through the rotating shaft 209 and the shaft 207.

[0024] Specifically, Figure 3As shown, the support ring 206 is arranged in the cylinder 211, and is used to fix the shaft 207 to ensure the stability of the shaft 207 during rotation; the packing gland 202 is installed on the cylinder 211, and is used to compress the polytetrafluoroethylene packing 205 to ensure the sealing effect at the rotating shaft 209, and it is convenient to replace 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 207 and is used in conjunction with the packing gland 202 to prevent sulfuric acid leakage and provide good sealing performance; the handle 201 is connected to the shaft 207 and is used to rotate the shaft 207.

[0025] like Figure 4 As shown, one end of the rotating shaft 209 is fixed inside the same body, and the other end is connected to the ball crown adjustment plate 208 by bolt connection; preferably, there is a main circular hole with a diameter of d in the center of the porous 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 size; the diameter d1 of the secondary circular hole = .

[0026] During installation, weld the single-hole plate 203, the cylinder 211 and the porous plate 210: first, weld the single-hole plate 203 and the porous plate 210 to the two ends of the cylinder 211 respectively to form a closed cylindrical chamber; install the ball crown adjustment plate 208, install the ball crown adjustment plate 208 inside the cylinder 211 through the rotating shaft 209, and ensure that the ball crown adjustment plate 208 can rotate freely; install the connecting shaft 207 and the ball crown adjustment plate 208, connect the shaft 207 and the ball crown adjustment plate 208, and connect the shaft 207 to the ball crown adjustment plate 208 through the shaft 207 Drive the ball crown adjustment plate 208 to rotate; assemble the handle 201, connect the handle 201 to one end of the shaft 207, and ensure that the handle 201 can drive the shaft 207 to rotate; place the polytetrafluoroethylene packing 205 and the column spring 204 above the cylinder 211, place the polytetrafluoroethylene packing 205 between the shaft 207 and the packing gland 202, and place the column spring 204 above it; fix the packing gland 202 on the cylinder 211 to ensure the sealing of the shaft 207 and facilitate the replacement of the seal during maintenance.

[0027] like Figure 5As shown, this embodiment also provides an acid distributor using a throttling device 200 for an acid distributor with adjustable flow and resistance reduction and vibration reduction of the present invention, comprising: an acid main pipe 100, an acid distribution branch pipe 300, and an acid distribution tank 400 connected in sequence; wherein, the acid main pipe 100 is connected to a plurality of acid distribution branch pipes 300, two mutually symmetrical acid distribution branch pipes 300 form a group, and each group of acid branch pipes 300 is provided with a corresponding acid distribution tank 400; the throttling device 200 for an acid distributor with adjustable flow and resistance reduction and vibration reduction is installed between the acid main pipe 100 and the acid distribution pipes.

[0028] When in use, the handle 201 is turned to drive the shaft 207 to rotate, and the shaft 207 drives the ball crown adjustment plate 208 to rotate through the rotating shaft 209, changing the position of the ball crown adjustment 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; wherein, the rotation angle of the ball crown adjustment plate 208 is adjusted according to the height of the liquid level in the acid separation tank 400, so that the cross-sectional area of ​​sulfuric acid flowing through the single hole plate 203 gradually increases from small to large, and the flow rate in the acid separation branch pipe 300 is adjusted until the liquid level height of each acid separation tank 400 is consistent; the porous plate 210 is used to reduce the pressure loss of sulfuric acid when it flows through the throttling orifice plate, reduce the pressure drop of the acid distributor, and thus reduce the energy loss of the system; the design of the porous plate 210 reduces the backflow area on the back pressure side, shortens the time and path required to reach the laminar state from the turbulent state, thereby reducing pipeline vibration, reducing fatigue damage of the acid main pipe 100 and the acid separation branch pipe 300, and improving the service life of the acid distributor.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, 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 rod.

2. A throttling device for an acid distributor with adjustable flow and resistance and vibration reduction as claimed in claim 1, characterized in that: 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.

3. A throttling device for an acid distributor with adjustable flow and resistance and vibration reduction as claimed in claim 2, characterized in that: The diameter d of the main circular hole is set according to the process flow rate; The diameter of the secondary circular hole d1= .

4. A throttling device for an acid distributor with adjustable flow and resistance and vibration reduction as claimed in claim 1, characterized in that: 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.

5. A throttling device for an acid distributor with adjustable flow and resistance and vibration reduction as claimed in claim 1, characterized in that: 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 rod, and is convenient for replacing the sealing parts during disassembly and maintenance.

6. A throttling device for an acid distributor with adjustable flow and resistance and vibration reduction as claimed in claim 5, characterized in that: It also includes a column spring, which is arranged between the shaft rod and the packing gland and is used to provide a pre-tightening force to ensure smooth rotation of the shaft rod during operation and prevent the shaft rod from loosening due to external vibration.

7. A throttling device for an acid distributor with adjustable flow and resistance and vibration reduction as claimed in claim 5, characterized in that: 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.

8. 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.

9. 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 8 is installed between the acid main pipe and the acid distribution pipe.

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