Graphite falling film absorption structure with thread tangent lines on inner walls of holes

Abstract

The utility model discloses a graphite falling film absorption structure with a thread tangent line on the inner wall of a hole, and relates to the technical field of graphite falling film absorption, the graphite falling film absorption structure with the thread tangent line on the inner wall of the hole comprises a bottom plate and a graphite falling film absorber body, the top of the bottom plate is fixedly connected with an adjusting frame; the adaptive positioning assembly is mounted at the top of the bottom plate and is used for self-adapting to the diameter of the graphite falling film absorber body and fixing the graphite falling film absorber body; and the compensation adjusting assembly is mounted in the adjusting frame. According to the utility model, the plurality of pressure heads arranged in a matrix are arranged to clamp and fix the graphite falling film absorber body from the two sides of the graphite falling film absorber body, so that the pressure heads fit the shape matched with the outer wall of the graphite falling film absorber body, thereby realizing multi-point fixation and improving the stability of fixation; and the fixing process can be realized only by supplying air to the adaptive positioning assembly through the inflator, so that the operation is convenient and rapid, and the positioning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of graphite falling film absorption technology, specifically to a graphite falling film absorption structure with a threaded tangent on the inner wall of the hole. Background Technology

[0002] A graphite falling film absorber is a falling film gas absorption device primarily composed of impermeable graphite. It is mainly used for the absorption of HCl gas to produce hydrochloric acid, and can also be used for the absorption or separation of corrosive gases such as NH3, SO3, and H2S. It boasts advantages such as low resistance, high absorption efficiency, high flexibility in process conditions, wide range of production capacity adjustment, and no media contamination. The graphite falling film absorption structure with its internally threaded tangent significantly enhances gas-liquid mass transfer efficiency by utilizing the micro-vortices formed when fluid flows through the graphite tube, achieved through continuous spiral grooves (8-12mm pitch, 0.5-1.2mm depth) machined on the inner wall. Its functions include: optimizing liquid film distribution, inducing uniform liquid film formation, and reducing thickness differences; extending contact time, as the spiral path increases gas residence time and improves absorption rate; and enhancing anti-clogging performance, as the channels guide the directional discharge of particles, increasing solids tolerance. This structure is the core mass transfer unit of the graphite falling film absorber, specifically designed for highly corrosive and high-exothermic operating conditions.

[0003] Existing graphite falling film absorbers are usually fixed by clamping from both sides using clamping plates. However, due to the fixed shape of the clamping plates, it is difficult to fix graphite falling film absorbers of different sizes. In response, the prior art has proposed a high-efficiency graphite falling film absorber (publication number CN220968638U) to solve the above-mentioned technical problems. The technical solution disclosed in this patent document is as follows: by designing a threaded rod, rotating rod, sliding groove, spring, limiting block, slot, moving block, arc-shaped clamping plate, torsion spring rod, pad block and external plate, graphite falling film absorbers of different sizes can be quickly clamped and fixed, and the stability of the graphite falling film absorber can be maintained during clamping and fixing.

[0004] However, using this structure for fixation has the following problems: Since fixation relies on the clamping plates on both sides, and the clamping plates need to be controlled by rotating independent threaded rods, it is difficult to achieve synchronous movement through manual operation during the fixation process, causing the fixed position of the graphite falling film absorber to deviate from the center; secondly, the threaded rods need to be rotated repeatedly from both sides to achieve positioning during the fixation process, which involves a large amount of operation; in addition, although the clamping plates are set as arc-shaped structures and limit clamping components are set for further fixation, only one point in the middle of the clamping plates can actually contact the graphite falling film absorber during the clamping process, and the limit clamping components need to be adjusted separately, which also involves a large amount of operation and is not conducive to practical application. Utility Model Content

[0005] The purpose of this invention is to provide a graphite falling film absorption structure with a threaded tangent on the inner wall of the hole, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A graphite falling film absorption structure with a threaded tangent on the inner wall of the hole includes a base plate and a graphite falling film absorber body. An adjustment frame is fixedly connected to the top of the base plate. It also includes: an adapter positioning component installed on the top of the base plate for adaptively adjusting and fixing the diameter of the graphite falling film absorber body; a compensation adjustment component installed inside the adjustment frame for actively adjusting the graphite falling film absorber body with large size differences; and an air pump installed on one side of the adjustment frame for providing positive pressure to the adapter positioning component. The adapter positioning component includes two symmetrically arranged covers. A distribution cavity is opened inside each cover. Several piston chambers are symmetrically opened on one side of the inner wall of each distribution cavity. A first piston plate is slidably connected between the inner walls of the piston chambers. A push rod is slidably connected to the inner wall of each piston chamber. One end of the push rod is fixedly connected to the first piston plate, and the end of the push rod away from the first piston plate extends to the outside of the cover and is fixedly connected to a pressure head. A first spring is sleeved on the outside of the push rod. The air pump and the diameter of the distribution cavity are connected through a pipe, and a valve is installed on the pipe connecting the air pump and the distribution cavity.

[0008] By adopting the above technical solution, multiple pressure heads arranged in a matrix are clamped and fixed from both sides of the graphite falling film absorber body, so that the pressure heads fit the shape adapted to the outer wall of the graphite falling film absorber body, thereby achieving multi-point fixation and improving the stability of fixation; and the fixation process can be achieved by simply supplying air to the matching positioning component with an air pump, which is convenient and quick to operate and improves the positioning efficiency.

[0009] A further improvement of the present invention is that: a partition plate is fixedly connected inside the distribution cavity, and the partition plate has through holes corresponding to the piston chambers. Hollow columns are fixedly connected inside the through holes, and the hollow columns have air holes in the middle, with the diameter of the air holes gradually decreasing from the sides to the middle.

[0010] By adopting the above technical solution, the distribution chamber is separated from each piston chamber by setting a baffle, and hollow columns with different orifice sizes are set to provide gas passage. The hollow columns on both sides have larger orifice sizes, and the orifice sizes gradually decrease towards the center. This allows the air entering the distribution chamber to enter the piston chambers on both sides more quickly, causing the push rods near the sides to push out faster, while the push rods near the center push out more slowly. This allows the pressure heads on both sides to contact the graphite falling film absorber body more quickly and push it from the side-biased parts. With the help of the cylindrical structure of its outer wall, it moves towards the center earlier.

[0011] A further improvement of the present invention is that: an indicator cylinder is fixedly connected to one side of the cover, a second piston plate is slidably connected between the inner walls of the indicator cylinder, an indicator rod is slidably connected to the top of the indicator cylinder, the bottom plate of the indicator rod extends into the interior of the indicator cylinder and is fixedly connected to the second piston plate, a second spring is sleeved on the outside of the indicator rod, and a scale is provided on the side wall of the indicator rod. The indicator cylinder and the dispensing chamber are connected through a pipe.

[0012] Using the above technical solution, since the fixing process requires air supply from an air pump, and the tightness of the fixing is also affected by air pressure, in order to avoid excessive pressure causing damage to the graphite falling film absorber body, an indicator cylinder is set to communicate with the distribution chamber. When the pressure inside the distribution chamber increases, it will push the second piston plate to move upward and push the indicator rod to move upward, squeezing the second spring. The operator can judge the pressure status inside the distribution chamber by observing the extension state of the indicator rod.

[0013] A further improvement of the present invention is that the compensation adjustment assembly includes a bidirectional lead screw rotatably connected between the inner walls of the adjustment frame, two sliders are symmetrically threaded to the outside of the bidirectional lead screw, the sliders are slidably connected to the inner wall of the adjustment frame, the top of the adjustment frame is symmetrically provided with strip grooves, the bottom of the cover is fixedly connected with a support frame, the bottom of the support frame extends into the interior of the adjustment frame through the strip groove and is fixedly connected to the slider, and one end of the bidirectional lead screw extends into the outside of the adjustment frame and is fixedly connected with a throttle handle.

[0014] By adopting the above technical solution and setting up a compensation adjustment component, the position of the cover can be initially adjusted (coarse adjustment) according to the change in the size of the graphite falling film absorber, thereby reducing the amount of extension required by the push rod during the subsequent fixing process. Specifically, by rotating the handle, the bidirectional lead screw is driven to rotate, thereby causing the two sliders to move along a symmetrical path, and the cover is moved through the support frame to complete the initial adjustment.

[0015] A further improvement of this utility model is that the pressure head is configured as a spherical structure.

[0016] The above technical solution is adopted to provide gentle pressure at any angle on the outer wall of the graphite falling film absorber body, thus avoiding physical damage during the clamping process.

[0017] A further improvement of this utility model is that the pressure head is made of rubber.

[0018] By adopting the above technical solution and setting a flexible pressure head, damage caused during the extrusion process can be reduced.

[0019] A further improvement of this utility model is that the top of the adjustment frame is polished.

[0020] Using the above technical solution, during the process of fixing the graphite falling film absorber body, its position will be finely adjusted to the middle of the adjustment frame. During this process, the graphite falling film absorber body will slide relative to the adjustment frame. Therefore, by polishing the top of the adjustment frame to make its surface smoother, wear during the fine adjustment process will be reduced, and the resistance of the fine adjustment will be reduced.

[0021] 1. This utility model provides a graphite falling film absorption structure with a threaded tangent on the inner wall of the hole. By setting multiple pressure heads arranged in a matrix to clamp and fix the graphite falling film absorber body from both sides, the pressure heads fit the shape adapted to the outer wall of the graphite falling film absorber body, thereby achieving multi-point fixation and improving the stability of fixation. Moreover, the fixation process can be achieved by simply supplying air to the matching positioning component with an air pump, which is convenient and quick to operate and improves the positioning efficiency.

[0022] 2. This utility model provides a graphite falling film absorption structure with a threaded tangent on the inner wall of the hole. By setting a partition to separate the distribution chamber from each piston chamber, and setting hollow columns with different hole diameters to provide gas passage, the hollow columns on both sides have larger hole diameters and the hole diameter gradually decreases towards the center. This allows the air entering the distribution chamber to enter the piston chambers on both sides more quickly, causing the push rods near the sides to push out faster, while the push rods near the center push out more slowly. This allows the pressure heads on both sides to contact and push the graphite falling film absorber body from the side-biased parts more quickly. With the cooperation of the cylindrical structure of its outer wall, it moves towards the center earlier.

[0023] 3. This utility model provides a graphite falling film absorption structure with a threaded tangent on the inner wall of the hole. By setting a compensation adjustment component, the position of the cover can be initially adjusted (coarse adjustment) according to the change of the size of the graphite falling film absorber body, thereby reducing the amount of extension required by the push rod during the subsequent fixing process. Specifically, by rotating the handle, the bidirectional lead screw is driven to rotate, thereby causing the two sliders to move in a symmetrical path, and the cover is moved by the support frame to complete the initial adjustment. Then, the subsequent adaptation and positioning can make the push rod fixed with a shorter stroke. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a first-view structural diagram of the present invention.

[0026] Figure 2 This is a structural schematic diagram of the entire utility model from a second perspective;

[0027] Figure 3 This is a schematic diagram of the structure of the compensation and adjustment component of this utility model;

[0028] Figure 4 This is a cross-sectional structural diagram of the positioning component adapted to this utility model.

[0029] Figure 5 This is a cross-sectional view of the indicator cylinder of this utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the partition of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the pressure head, push rod, and first piston plate of this utility model.

[0032] In the diagram: 1. Base plate; 2. Adjusting frame; 3. Adaptive positioning assembly; 301. Cover; 302. Distribution chamber; 303. Piston chamber; 304. Push rod; 305. First piston plate; 306. Pressure head; 307. First spring; 401. Partition plate; 402. Hollow column; 403. Air hole; 501. Indicator cylinder; 502. Second piston plate; 503. Indicator rod; 504. Second spring; 6. Compensation and adjustment assembly; 601. Two-way lead screw; 602. Slider; 603. Support frame; 604. Strip groove; 7. Graphite falling film absorber body; 8. Air pump; 9. Valve. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to embodiments:

[0034] Example 1

[0035] like Figure 1 , Figure 2 and Figure 4As shown, this utility model provides a graphite falling film absorption structure with a threaded tangent on the inner wall of the hole, including a base plate 1 and a graphite falling film absorber body 7. An adjustment frame 2 is fixedly connected to the top of the base plate 1. It also includes: an adapter positioning component 3, installed on the top of the base plate 1, for adaptively adjusting and fixing the diameter of the graphite falling film absorber body 7; a compensation adjustment component 6, installed inside the adjustment frame 2, for actively adjusting the graphite falling film absorber body 7 with large size differences; and an air pump 8, installed on one side of the adjustment frame 2, for providing positive pressure to the adapter positioning component 3. The adapter positioning component 3 includes two symmetrically arranged covers 301. The inner wall of the housing 301 is provided with a distribution chamber 302. Several piston chambers 303 are symmetrically provided on one side of the inner wall of the distribution chamber 302. A first piston plate 305 is slidably connected between the inner walls of the piston chambers 303. A push rod 304 is slidably connected to the inner wall of the piston chambers 303. One end of the push rod 304 is fixedly connected to the first piston plate 305. The end of the push rod 304 away from the first piston plate 305 extends to the outside of the housing 301 and is fixedly connected to a pressure head 306. A first spring 307 is sleeved on the outside of the push rod 304. The air pump 8 is directly connected to the distribution chamber 302 through a pipe, and a valve 9 is provided on the pipe used to connect the air pump 8 and the distribution chamber 302.

[0036] In this embodiment, by setting multiple pressure heads 306 arranged in a matrix to clamp and fix the graphite falling film absorber body 7 from both sides, the pressure heads 306 fit into a shape that matches the outer wall of the graphite falling film absorber body 7, thereby achieving multi-point fixation and improving the stability of fixation; and the fixation process can be achieved by simply supplying air to the matching positioning component 3 with the air pump 8, which is convenient and quick to operate and improves the positioning efficiency.

[0037] Specifically, the air pump 8 inflates the distribution chamber 302, and the air enters each piston chamber 303, pushing each first piston plate 305 to move. On the one hand, the first spring 307 is compressed and accumulates potential energy. On the other hand, the push rod 304 pushes the pressure head 306 to move until it contacts the graphite falling film absorber body 7. The inflation continues until all pressure heads 306 are pressed against the graphite falling film absorber body 7, completing the fixation. When the inflation stops, the pressure in the distribution chamber 302 can be released by opening the valve 9, and the first piston plate 305 is pushed and reset by the rebound of the first spring 307, and the pressure head 306 is reset by the push rod 304.

[0038] Example 2

[0039] like Figure 4 and Figure 6As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a partition plate 401 is fixedly connected inside the distribution cavity 302, and a through hole corresponding to the piston cavity 303 is opened on the partition plate 401. A hollow column 402 is fixedly connected inside the through hole, and the hollow column 402 has an air hole 403 in the middle, and the diameter of the air hole 403 gradually decreases from both sides to the middle.

[0040] When the graphite falling film absorber body 7 is placed on the adjusting frame 2, it is usually not kept exactly in the center position. Even with the above structure for fixing, it cannot be guaranteed that the graphite falling film absorber body 7 will be quickly fixed in the center position. There is a misalignment in the direction perpendicular to the extension direction of the push rod 304.

[0041] In this embodiment, a partition 401 is used to separate the distribution chamber 302 from each piston chamber 303, and hollow columns 402 with different aperture sizes are provided to allow gas to pass through. The hollow columns 402 on both sides have larger apertures, and the apertures gradually decrease towards the center. This allows the air entering the distribution chamber 302 to enter the piston chambers 303 on both sides more quickly, causing the push rods 304 near the sides to push out faster, while the push rods 304 near the center push out more slowly. This allows the pressure heads 306 on both sides to contact and push the graphite falling film absorber body 7 from the side parts more quickly. With the help of the cylindrical structure of its outer wall, it moves towards the center earlier.

[0042] Example 3

[0043] like Figure 4 and Figure 5 As shown, based on Embodiment 2, this utility model provides a technical solution: Preferably, an indicator cylinder 501 is fixedly connected to one side of the cover 301, a second piston plate 502 is slidably connected between the inner walls of the indicator cylinder 501, an indicator rod 503 is slidably connected to the top of the indicator cylinder 501, the bottom plate 1 of the indicator rod 503 extends into the interior of the indicator cylinder 501 and is fixedly connected to the second piston plate 502, a second spring 504 is sleeved on the outside of the indicator rod 503, a scale is provided on the side wall of the indicator rod 503, and the indicator cylinder 501 is connected to the distribution cavity 302 through a pipe.

[0044] In this embodiment, since the fixing process requires air supply from the air pump 8, and the tightness of the fixing is also affected by the air pressure, in order to avoid excessive pressure causing damage to the graphite falling film absorber body 7, an indicator cylinder 501 is connected to the distribution chamber 302. When the pressure inside the distribution chamber 302 increases, it will push the second piston plate 502 to move upward and push the indicator rod 503 to move upward, squeezing the second spring 504. The operator can judge the pressure state inside the distribution chamber 302 by observing the extension state of the indicator rod 503.

[0045] Example 4

[0046] like Figure 1 and Figure 3 As shown, based on Embodiment 3, this utility model provides a technical solution: Preferably, the compensation adjustment component 6 includes a bidirectional lead screw 601 rotatably connected between the inner walls of the adjustment frame 2. Two sliders 602 are symmetrically threaded to the outside of the bidirectional lead screw 601. The sliders 602 are slidably connected to the inner wall of the adjustment frame 2. The top of the adjustment frame 2 is symmetrically provided with strip grooves 604. The bottom of the cover 301 is fixedly connected with a support frame 603. The bottom of the support frame 603 extends into the interior of the adjustment frame 2 through the strip grooves 604 and is fixedly connected to the sliders 602. One end of the bidirectional lead screw 601 extends to the outside of the adjustment frame 2 and is fixedly connected with a handle.

[0047] Due to the length limitation of the push rod 304, when the size of the graphite falling film absorber body 7 varies greatly, the push rod 304 that extends adaptively alone cannot meet the size span requirements. If the size of the cover 301 and the push rod 304 is increased indiscriminately, the overall size of the device will increase, making it inconvenient to use.

[0048] In this embodiment, by setting the compensation adjustment component 6, the position of the cover 301 can be initially adjusted (coarsely adjusted) according to the size change of the graphite falling film absorber body 7, thereby reducing the amount of extension required by the push rod 304 during the subsequent fixing process; specifically, by rotating the throttle, the bidirectional lead screw 601 is driven to rotate, thereby causing the two sliders 602 to move in a symmetrical path, and the cover 301 is moved through the support frame 603 to complete the initial adjustment.

[0049] like Figure 4 and Figure 7 As shown, preferably, the pressure head 306 is configured as a spherical structure.

[0050] In this embodiment, gentle pressure is provided at any angle on the outer wall of the graphite falling film absorber body 7 to avoid physical damage during the clamping process.

[0051] Preferably, the pressure head 306 is made of rubber.

[0052] In this embodiment, by setting a flexible pressure head 306, damage caused during the extrusion process is reduced.

[0053] Preferably, the top of the adjustment bracket 2 is polished.

[0054] In this embodiment, since the graphite falling film absorber body 7 will be finely adjusted to the middle of the adjustment frame 2 during the fixing process in the above scheme, the graphite falling film absorber body 7 will slide relative to the adjustment frame 2 during the process. Therefore, by polishing the top of the adjustment frame 2 to make its surface smoother, wear during the fine adjustment process is reduced and the resistance of fine adjustment is reduced.

[0055] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A graphite falling film absorption structure with a self-contained threaded tangent on the inner wall of a hole, comprising a base plate (1) and a graphite falling film absorber body (7), wherein an adjustment frame (2) is fixedly connected to the top of the base plate (1); characterized in that, Also includes: The adapter positioning component (3) is installed on the top of the base plate (1) to adapt to the diameter of the graphite falling film absorber body (7) and fix it. The compensation adjustment component (6) is installed inside the adjustment frame (2) and is used to actively adjust the graphite falling film absorber body (7) with large size differences; An air pump (8) is installed on one side of the adjusting frame (2) to provide positive pressure to the adapter positioning assembly (3); The adapter positioning component (3) includes two symmetrically arranged covers (301). The inside of the cover (301) is provided with a distribution cavity (302). A plurality of piston cavities (303) are symmetrically arranged on one side of the inner wall of the distribution cavity (302). A first piston plate (305) is slidably connected between the inner walls of the piston cavities (303). A push rod (304) is slidably connected to the inner wall of the piston cavity (303). One end of the push rod (304) is fixedly connected to the first piston plate (305). The end of the push rod (304) away from the first piston plate (305) extends to the outside of the cover (301) and is fixedly connected to a pressure head (306). A first spring (307) is sleeved on the outside of the push rod (304). The diameter of the air pump (8) and the distribution cavity (302) is connected through a pipe, and a valve (9) is provided on the pipe used to connect the air pump (8) and the distribution cavity (302).

2. The graphite falling film absorption structure with a built-in thread tangent on the inner wall of the hole according to claim 1, characterized in that: The distribution cavity (302) is fixedly connected to a partition plate (401). The partition plate (401) has through holes that correspond one-to-one with the piston cavity (303). Hollow columns (402) are fixedly connected inside each through hole. The hollow columns (402) have air holes (403) in the middle, and the diameter of the air holes (403) gradually decreases from the sides to the middle.

3. The graphite falling film absorption structure with a built-in thread tangent on the inner wall of the hole according to claim 2, characterized in that: An indicator cylinder (501) is fixedly connected to one side of the cover (301). A second piston plate (502) is slidably connected between the inner walls of the indicator cylinder (501). An indicator rod (503) is slidably connected to the top of the indicator cylinder (501). The bottom plate (1) of the indicator rod (503) extends into the interior of the indicator cylinder (501) and is fixedly connected to the second piston plate (502). A second spring (504) is sleeved on the outside of the indicator rod (503). The side wall of the indicator rod (503) is provided with a scale. The indicator cylinder (501) and the distribution chamber (302) are connected through a pipe.

4. The graphite falling film absorption structure with a built-in thread tangent on the inner wall of the hole according to claim 3, characterized in that: The compensation adjustment assembly (6) includes a bidirectional lead screw (601) rotatably connected between the inner walls of the adjustment frame (2). The bidirectional lead screw (601) has two sliders (602) symmetrically threaded to its outer side. The sliders (602) are slidably connected to the inner wall of the adjustment frame (2). The top of the adjustment frame (2) is symmetrically provided with strip grooves (604). The bottom of the cover (301) is fixedly connected with a support frame (603). The bottom of the support frame (603) extends into the interior of the adjustment frame (2) through the strip grooves (604) and is fixedly connected to the sliders (602). One end of the bidirectional lead screw (601) extends into the exterior of the adjustment frame (2) and is fixedly connected with a throttle.

5. A graphite falling film absorption structure with a built-in thread tangent on the inner wall of a hole according to claim 4, characterized in that: The pressure head (306) is configured as a spherical structure.

6. The graphite falling film absorption structure with a built-in thread tangent on the inner wall of the hole according to claim 5, characterized in that: The pressure head (306) is made of rubber.

7. A graphite falling film absorption structure with a built-in thread tangent on the inner wall of a hole according to claim 6, characterized in that: The top of the adjustment frame (2) is polished.

Images