Degassing tower for preparing hydrogen fluoride
By combining the self-conducting component and the driving component, the problem of crystallization and blockage of the sieve holes in the hydrogen fluoride degassing tower is solved, achieving automatic conduction and maintaining gas-liquid mass transfer efficiency and system stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-27
AI Technical Summary
Existing degassing towers are prone to crystallization blockage due to temperature fluctuations when processing hydrogen fluoride gas, especially accumulating on the inner wall of the sieve structure, which affects gas-liquid mass transfer efficiency and system pressure loss.
The design uses a self-conducting component in conjunction with a drive component. The sieve holes are automatically opened when gas enters via a guide rod, preventing crystallization blockage and eliminating the need for an additional power source.
It effectively prevents sieve clogging after prolonged use, maintains gas-liquid mass transfer efficiency, reduces system pressure loss, and avoids unplanned downtime.
Smart Images
Figure CN224040489U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of degassing tower, and particularly relates to a degassing tower for preparing hydrogen fluoride. BACKGROUND
[0002] Hydrogen fluoride (HF) is widely used in fluorine-containing polymers, refrigerants, electronic-grade chemicals and nuclear fuel processing fields as an important chemical raw material; in order to obtain high-purity HF gas, mixed gas needs to be purified by a degassing tower, impurities are adsorbed by an absorbent, and gas-liquid separation is realized, and then the product is obtained through processes such as condensation and rectification;
[0003] A traditional degassing tower usually adopts a sieve hole type tray structure, which increases the gas-liquid contact area by dense sieve holes on the tray to improve the mass transfer efficiency; the HF mixed gas containing impurities enters from the bottom gas inlet, is in countercurrent contact with the absorbent sprayed by the liquid distributor at the top of the tower, and the purified gas is discharged from the top exhaust port after the impurities are adsorbed;
[0004] However, HF gas is prone to gas-solid phase change under temperature fluctuation, especially in the internal structure of the sieve hole and the edge area of the tray, the low-temperature environment promotes the crystallization and precipitation of HF, and with the extension of the running time, the crystalline substances continuously accumulate in the inner wall of the sieve hole, causing the cross-sectional area of the through hole to be reduced or even completely blocked, which seriously weakens the gas-liquid mass transfer efficiency, leads to the decrease of the degassing effect and the increase of the system pressure loss, and even causes unplanned shutdown.
[0005] That is, the prior art has the following technical problems: when the ordinary degassing tower is used to treat HF gas, crystallization and blockage are prone to occur. Therefore, the degassing tower for preparing hydrogen fluoride is proposed to solve the above problems. CONTENT OF THE INVENTION
[0006] In the embodiment, the degassing tower for preparing hydrogen fluoride is provided to solve the problem that the ordinary degassing tower in the prior art is prone to crystallization and blockage when treating HF gas.
[0007] According to an aspect of the present application, a degassing tower for preparing hydrogen fluoride is provided, which comprises:
[0008] A tower body assembly, a liquid distributor is fixedly arranged in an inner cavity of the tower body assembly, and the liquid distributor is used to spray an absorbent;
[0009] A sieve hole type tray is fixedly arranged in the inner cavity of the tower body assembly, the sieve hole type tray is located at the bottom side of the liquid distributor, and the sieve hole type tray is used to increase the gas-liquid contact area;
[0010] A self-conducting assembly is fixedly arranged in the inner cavity of the tower body assembly, and is in contact with the sieve-hole type tray, and the bottom of the self-conducting assembly is fixedly connected with a driving assembly, and the self-conducting assembly is used for automatically working on the sieve-hole type tray to conduct when gas enters.
[0011] The preparation hydrogen fluoride degassing tower, the tower body assembly includes a degassing tower, a tower seat, an exhaust port and an air inlet, the bottom of the degassing tower is fixedly connected with the tower seat, the upper end of the degassing tower is provided with the exhaust port, and the bottom side position of the degassing tower is fixedly connected with the air inlet.
[0012] The preparation hydrogen fluoride degassing tower, the liquid distributor includes a main groove, a sub-groove, a spray port and a connecting pipeline, the main groove is fixedly arranged in the inner cavity of the tower body assembly, the bottom of the main groove is fixedly connected with a plurality of sub-grooves, the bottom of the sub-groove is fixedly provided with a plurality of spray ports, the inner cavities of the main groove and the sub-groove are in communication with each other, one end of the connecting pipeline is fixedly connected in the inner cavity of the main groove, and the other end of the connecting pipeline extends out of the wall of the tower body assembly.
[0013] The preparation hydrogen fluoride degassing tower, the self-conducting assembly includes a fixed support, a guide rod, a support frame and a conducting rod, the fixed support is fixedly arranged in the inside of the tower body assembly, the middle part of the fixed support is slidably connected with the guide rod, the top end of the guide rod is fixedly connected with the support frame, and the support frame is fixedly connected with the conducting rod.
[0014] The preparation hydrogen fluoride degassing tower, the conducting rod is provided with a plurality of conducting rods, and the plurality of conducting rods are fixedly arranged at the upper surface of the support frame, and the conducting rod extends into the sieve hole of the sieve-hole type tray.
[0015] The preparation hydrogen fluoride degassing tower, the conducting rod is provided with a plurality of conducting rods, and the plurality of conducting rods are fixedly arranged at the upper surface of the support frame, and the conducting rod extends into the sieve hole of the sieve-hole type tray.
[0016] The preparation hydrogen fluoride degassing tower, the driving assembly includes a connecting bracket, a rotating disc, a crank, a rocker and a turbine, the connecting bracket is fixedly arranged at the inner cavity side wall of the tower body assembly, one end of the connecting bracket is rotatably connected with the rotating disc, the side wall of the rotating disc is rotatably connected with one end of the crank, and the other end of the crank is rotatably connected with the rocker.
[0017] The preparation hydrogen fluoride degassing tower, the top end of the rocker is fixedly connected with the bottom end of the guide rod.
[0018] The preparation hydrogen fluoride degassing tower, the connecting bracket is rotatably connected with a rotating rod on one side, one end of the rotating rod is fixedly connected with the rotating disc coaxially, and the other end of the rotating rod is fixedly connected with a first bevel gear.
[0019] The degassing tower for preparing hydrogen fluoride, the connecting support is rotationally connected with a linkage rod, a second bevel gear is fixedly connected to the top end of the linkage rod, the second bevel gear is intermeshed with the first bevel gear, and a turbine is fixedly connected to the bottom end of the linkage rod.
[0020] Through the above-mentioned embodiments of the present application, in order to solve the problem that the porous structure of the sieve plate is prone to cause HF phase change crystallization due to temperature reduction and the crystallization is accumulated on the edge to cause blockage when the ordinary degassing tower is used for degassing processing of the HF mixed gas containing impurities in the prior art, the self-guiding assembly is designed, and through cooperation of the self-guiding assembly and the driving assembly, the automatic auxiliary guiding function can be realized when the gas enters, so that the crystallization blockage phenomenon after long-time use is avoided, and no additional power source is needed, and the self-guiding assembly is convenient to use. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0022] Figure 1 It is a whole structure schematic view of the present application;
[0023] Figure 2 It is an internal structure schematic view of the present application;
[0024] Figure 3 It is an internal whole structure schematic view of the present application;
[0025] Figure 4 It is a structure schematic view of the liquid distributor of the present application;
[0026] Figure 5 It is a structure schematic view of the self-guiding assembly of the present application;
[0027] Figure 6 It is a structure schematic view of the driving assembly of the present application.
[0028] In the drawings:
[0029] Tower body assembly 1, degassing tower 101, tower seat 102, exhaust port 103, gas inlet 104;
[0030] Liquid distributor 2, main groove 201, auxiliary groove 202, spraying port 203, connecting pipeline 204;
[0031] Sieve plate 3;
[0032] Self-lead-through assembly 4, fixed support 401, guide rod 402, support frame 403, lead-through rod 404, spiral groove 405;
[0033] Drive assembly 5, connecting support 501, rotating disc 502, crank 503, rocker 504, rotating rod 505, first bevel gear 506, linkage rod 507, second bevel gear 508, turbine 509. DETAILED DESCRIPTION
[0034] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present application.
[0035] Please refer to Figures 1-6 The degassing tower for preparing hydrogen fluoride comprises:
[0036] Tower body assembly 1, a liquid distributor 2 is fixedly arranged in the inner cavity of the tower body assembly 1, and the liquid distributor 2 is used for spraying absorbent;
[0037] A sieve hole type tray 3 is fixedly arranged in the inner cavity of the tower body assembly 1, the sieve hole type tray 3 is located at the bottom side of the liquid distributor 2, and the sieve hole type tray 3 is used for increasing the gas-liquid contact area;
[0038] A self-lead-through assembly 4 is fixedly arranged in the inner cavity of the tower body assembly 1, the self-lead-through assembly 4 is in contact with the sieve hole type tray 3, the bottom of the self-lead-through assembly 4 is fixedly connected with a drive assembly 5, and the self-lead-through assembly 4 is used for automatically working on the sieve hole type tray 3 to lead through when gas enters;
[0039] Through the above technical solutions, through the cooperation of the self-lead-through assembly 4 and the drive assembly 5, the function of automatic auxiliary lead-through can be realized when gas enters, so that the phenomenon of crystallization blockage after long-term use is avoided, and at the same time, an additional power source is not needed, and the use is convenient;
[0040] The tower body assembly 1 includes a degassing tower 101, a tower base 102, an exhaust port 103 and an air inlet 104, the bottom of the degassing tower 101 is fixedly connected with the tower base 102, the upper end of the degassing tower 101 is provided with the exhaust port 103, and the bottom side of the degassing tower 101 is fixedly connected with the air inlet 104; through the technical scheme, the impurity-containing HF mixed gas enters from the air inlet 104, and the purified gas is discharged from the exhaust port 103 and enters a condensation or absorption process;
[0041] The liquid distributor 2 includes a main groove 201, a sub-groove 202, a spray port 203 and a connecting pipeline 204, the main groove 201 is fixedly arranged in the inner cavity of the tower body assembly 1, the bottom of the main groove 201 is fixedly connected with a plurality of sub-grooves 202, the bottom of the sub-groove 202 is fixedly provided with a plurality of spray ports 203, the inner cavities of the main groove 201 and the sub-groove 202 are in communication with each other, one end of the connecting pipeline 204 is fixedly connected in the inner cavity of the main groove 201, and the other end of the connecting pipeline 204 extends out of the wall of the tower body assembly 1; through the technical scheme, one end of the connecting pipeline 204 is connected with the absorbent conveying device, the absorbent enters the inside of the main groove 201 through the connecting pipeline 204, and then enters the inside of the sub-groove 202, and then is sprayed through the spray port 203 to absorb the impurities in the gas;
[0042] The self-guiding assembly 4 includes a fixed support 401, a guide rod 402, a support frame 403 and a guiding rod 404, the fixed support 401 is fixedly arranged in the inside of the tower body assembly 1, the middle part of the fixed support 401 is slidably connected with the guide rod 402, the top end of the guide rod 402 is fixedly connected with the support frame 403, and the support frame 403 is fixedly connected with the guiding rod 404;
[0043] The guiding rod 404 is provided with a plurality of guiding rods 404, the plurality of guiding rods 404 are fixedly arranged at the upper surface of the support frame 403, and the guiding rod 404 extends into the screen hole of the screen hole type tray 3;
[0044] The guiding rod 404 is provided with a spiral groove 405, through the technical scheme, when the guide rod 402 moves, the support frame 403 can be driven to move, so that the guiding rod 404 is driven to move, and through the movement of the guiding rod 404 in the screen hole of the screen hole type tray 3, the screen hole can be guided;
[0045] The driving assembly 5 includes a connecting support 501, a rotating disc 502, a crank 503, a rocker 504 and a turbine 509, the connecting support 501 is fixedly arranged at the inner cavity side wall of the tower body assembly 1, one end of the connecting support 501 is rotatably connected with the rotating disc 502, the side wall of the rotating disc 502 is rotatably connected with one end of the crank 503, and the other end of the crank 503 is rotatably connected with the rocker 504.
[0046] The top end of the rocker 504 is fixedly connected with the bottom end of the guide rod 402, through the rotation of the rotating disc 502, the one end of the crank 503 can be driven to move in a ring shape, and the rocker 504 is driven to move up and down, so that the guide rod 402 is driven to move up and down.
[0047] One side of the connecting support 501 is rotatably connected with a rotating rod 505, one end of the rotating rod 505 is coaxially fixedly connected with the rotating disc 502, and the one end of the rotating rod 505 is fixedly connected with a first bevel gear 506.
[0048] The connecting support 501 is rotatably connected with a linkage rod 507, the top end of the linkage rod 507 is fixedly connected with a second bevel gear 508, the second bevel gear 508 is meshed with the first bevel gear 506, and the bottom end of the linkage rod 507 is fixedly connected with a turbine 509, through the movement of the airflow, the turbine 509 can be driven to rotate, and the linkage rod 507 can be driven to rotate, the second bevel gear 508 is driven to rotate through the rotation of the linkage rod 507, so that the first bevel gear 506 is driven to rotate, the rotating disc 502 is driven to rotate, and the function of driving the guide rod 402 to move reciprocatingly is realized, and the guide rod 404 can be driven to move reciprocatingly.
[0049] The circuit and electronic components and modules are all prior art, and those skilled in the art can realize them without further description, and the content protected by the application does not involve improvement of software and methods.
[0050] The above only describes the preferred embodiments of the application and is not used to limit the application, and those skilled in the art can make various changes and changes to the application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the protection scope of the application.
Claims
1. A degassing column for the production of hydrogen fluoride, characterized in that The preparation of hydrogen fluoride degassing tower includes: The tower body assembly (1) is provided with a liquid distributor (2) in the inner cavity of the tower body assembly (1), and the liquid distributor (2) is used for spraying the absorbent; The sieve plate (3) is fixedly arranged in the inner cavity of the tower body assembly (1), and the sieve plate (3) is located at the bottom side of the liquid distributor (2), and the sieve plate (3) is used for increasing the gas-liquid contact area; The self-priming assembly (4) is fixedly arranged in the inner cavity of the tower body assembly (1), and the self-priming assembly (4) is in contact with the sieve plate (3), and the bottom of the self-priming assembly (4) is fixedly connected with the driving assembly (5), and the self-priming assembly (4) is used for automatically working on the sieve plate (3) when the gas enters.
2. The degassing column for producing hydrogen fluoride according to claim 1, characterized by: The tower body assembly (1) includes a degassing tower (101), a tower seat (102), an exhaust port (103) and an air inlet (104), the bottom of the degassing tower (101) is fixedly connected with the tower seat (102), the upper end of the degassing tower (101) is provided with the exhaust port (103), and the bottom side of the degassing tower (101) is fixedly connected with the air inlet (104).
3. The degassing column for producing hydrogen fluoride according to claim 1, characterized by: The liquid distributor (2) includes a main groove (201), a sub-groove (202), a spray port (203) and a connecting pipeline (204), the main groove (201) is fixedly arranged in the inner cavity of the tower body assembly (1), the bottom of the main groove (201) is fixedly connected with a plurality of sub-grooves (202), the bottom of the sub-groove (202) is fixedly provided with a plurality of spray ports (203), the inner cavities of the main groove (201) and the sub-groove (202) are in communication with each other, one end of the connecting pipeline (204) is fixedly connected in the inner cavity of the main groove (201), and the other end of the connecting pipeline (204) extends out of the wall of the tower body assembly (1).
4. The hydrogen fluoride production degassing column of claim 1, wherein: The self-priming assembly (4) includes a fixed support (401), a guide rod (402), a support frame (403) and a priming rod (404), the fixed support (401) is fixedly arranged in the inner cavity of the tower body assembly (1), the middle part of the fixed support (401) is slidably connected with the guide rod (402), the top end of the guide rod (402) is fixedly connected with the support frame (403), and the support frame (403) is fixedly connected with the priming rod (404).
5. The degassing column for producing hydrogen fluoride according to claim 4, characterized by: The priming rod (404) is provided with a plurality of priming rods (404), and the plurality of priming rods (404) are fixedly arranged on the upper surface of the support frame (403), and the priming rod (404) extends into the sieve hole of the sieve plate (3).
6. The hydrogen fluoride production degassing column of claim 4, wherein: The priming rod (404) is provided with a spiral groove (405).
7. The hydrogen fluoride production degassing column of claim 1, wherein: The driving assembly (5) comprises a connecting support (501), a rotating disc (502), a crank (503), a rocker (504) and a turbine (509), the connecting support (501) is fixedly arranged at the inner cavity side wall of the tower body assembly (1), one end of the connecting support (501) is rotatably connected with the rotating disc (502), the side wall of the rotating disc (502) is rotatably connected with one end of the crank (503), and the other end of the crank (503) is rotatably connected with the rocker (504).
8. The hydrogen fluoride production degassing column of claim 7, wherein: The top end of the rocker (504) is fixedly connected with the bottom end of the guide rod (402).
9. The hydrogen fluoride production degassing column of claim 8, wherein: One side of the connecting support (501) is rotatably connected with a rotating rod (505), one end of the rotating rod (505) is fixedly connected with the rotating disc (502) in a coaxial mode, and the one end of the rotating rod (505) is fixedly connected with a first bevel gear (506).
10. The hydrogen fluoride production degassing column of claim 9, wherein: The connecting support (501) is rotatably connected with a linkage rod (507), the top end of the linkage rod (507) is fixedly connected with a second bevel gear (508), the second bevel gear (508) is meshed with the first bevel gear (506), and the bottom end of the linkage rod (507) is fixedly connected with the turbine (509).