Automatic spray cleaning device for vertical high-purity chemical product storage tank

Abstract

The present application relates to water-saving spray cleaning technical field, specifically relates to a kind of high-purity chemical vertical storage tank automatic spray cleaning device, including vertical storage tank, the upper end of vertical storage tank is fixedly installed with mounting base by flange, the upper end of mounting base is fixedly installed with support seat, the upper end of mounting base is provided with limit guide base for guiding lifting liquid metal pipe, the bottom end of lifting liquid metal pipe is hinged with super-clean shower head, the upper end of lifting liquid metal pipe is rotatably connected with ultrapure water pipe connector, ultrapure water pipe connector is used to connect the ultrapure water pipeline passing through limit block, spray cleaning device includes lifting mechanism, rotating mechanism and angle adjusting mechanism, it is favorable to with PLC program control servo motor, realize the periodic lifting action of super-clean shower head, facilitate super-clean shower head to the inner wall of vertical storage tank is cleaned vertically, improve cleaning effect, reduce pollution source, to reach the inside of storage tank is cleaned overall.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water-saving spray cleaning, and particularly relates to an automatic spray cleaning device for a high-purity chemical vertical storage tank. BACKGROUND

[0002] High-purity chemical storage tanks need to be made of high-quality materials, such as stainless steel, to ensure their excellent corrosion resistance and stability to high-purity chemicals. These storage tanks have airtight sealing systems and good structural designs that can effectively prevent external impurities from contaminating the chemicals and maintain the purity and quality of the chemicals. The vertical design of the storage tank makes it relatively small in footprint, facilitating efficient use of limited space, and its compact structure facilitates installation and maintenance. In addition, high-purity chemical vertical storage tanks are equipped with various accessories, such as sampling valves, discharge valves, exhaust valves, and liquid level meters, thermometers, etc., to monitor and adjust the storage state of the chemicals in real time.

[0003] Most existing high-purity chemical vertical storage tanks are cleaned manually. Workers enter the interior of the vertical storage tank with a dust-free cloth and a high-pressure water gun, wiping with pure water while washing with a high-pressure water gun. The workers' arms or bodies carry a large amount of particles and dust, which can easily contaminate the interior of the storage tank. The cleaning tools, such as high-pressure water guns, are mostly made of ordinary stainless steel and plastic pipes, which are not high-purity materials and can contaminate the interior of the storage tank during use. The cleaning degree is difficult to meet the requirements of high-purity chemicals. Manual cleaning not only occupies a lot of time for workers, but also wastes water resources, and the cleaning and water-saving efficiency is low.

[0004] Therefore, an automatic spray cleaning device for a high-purity chemical vertical storage tank is proposed. SUMMARY

[0005] The present application aims to provide an automatic spray cleaning device for a high-purity chemical vertical storage tank to solve the problems of poor cleaning effect and water waste mentioned in the background.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a kind of high purity chemical vertical storage tank automatic spray cleaning device, including vertical storage tank, the upper end of vertical storage tank is fixedly installed with installation base by flange, the upper end of installation base is fixedly installed with support seat, the upper end of installation base is provided with limit guide for guiding lifting liquid metal pipe, the bottom end of lifting liquid metal pipe is hinged with super-clean spray head, the upper end of lifting liquid metal pipe is rotatably connected with ultrapure water pipe connector, ultrapure water pipe connector is used to connect the ultrapure water pipeline passing through limit block, spray cleaning device includes lifting mechanism, rotating mechanism and angle adjusting mechanism, lifting mechanism is used to drive super-clean spray head to lift, so that super-clean spray head sprays and cleans different vertical positions of the inner wall of vertical storage tank, rotating mechanism uses the lifting power of lifting mechanism to drive the super-clean spray head at the bottom end of lifting liquid metal pipe to rotate horizontally by 360 degrees, so that super-clean spray head uniformly cleans the inner wall of vertical storage tank, angle adjusting mechanism changes the vertical angle of super-clean spray head during the process of super-clean spray head descending to the limit of the bottom end of vertical storage tank, so that super-clean spray head fully sprays and cleans the bottom end of vertical storage tank.

[0007] Preferably, the lifting mechanism includes a servo motor fixedly installed on the side wall of the support seat, the output shaft of the servo motor is fixedly connected with one end of a lead screw, the other end of the lead screw is rotatably connected to the bottom end of the support seat, the outer side of the lead screw is threadedly connected with a movable seat, the inner side of the movable seat is fixedly installed with a support frame, and the support frame is clamped with the lifting liquid metal pipe.

[0008] Preferably, the side of the movable seat is attached to the inner wall of the support seat, and the support frame is rotatably connected with the lifting liquid metal pipe.

[0009] Preferably, the rotating mechanism includes a rack fixedly installed on the inner wall of the support seat, the rack is engaged with a gear, the gear is rotatably connected to one side of the movable seat, the other side of the gear is fixedly installed with a first rotating wheel, and the first rotating wheel is drivingly connected with a second rotating wheel through a belt.

[0010] Preferably, one end of a rotating rod is fixedly connected to one side of the second rotating wheel, the other end of the rotating rod is fixedly connected with a first bevel gear, and the rotating rod is rotatably connected to the support frame.

[0011] Preferably, the first bevel gear is engaged with a second bevel gear, and the second bevel gear is fixedly installed on the lifting liquid metal pipe.

[0012] Preferably, the first rotating wheel and the second rotating wheel are both circularly arranged, and the diameter of the first rotating wheel is greater than the diameter of the second rotating wheel.

[0013] Preferably, the angle adjusting mechanism comprises a connecting hose fixedly connected to the bottom end of the lifting liquid metal inlet pipe, the connecting hose is fixedly connected with an ultra-clean spray head, one side of the ultra-clean spray head is fixedly connected with a connecting block, one end of the connecting block is fixedly connected with a rope belt, the other end of the rope belt penetrates through the lifting liquid metal inlet pipe and is fixedly connected with a sliding block, the sliding block is clamped in a sliding groove, the sliding groove is opened on the lifting liquid metal inlet pipe, the outer side of the sliding groove is fixedly connected with a sliding cylinder, and the sliding cylinder is sleeved on the lifting liquid metal inlet pipe.

[0014] Preferably, the sliding block and the sliding groove are slidingly connected, and the sliding block is matched with the sliding groove.

[0015] Preferably, a return spring is fixedly connected between the lifting liquid metal inlet pipe and the connecting block, and the return spring is sleeved on the rope belt.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The lifting mechanism is designed to facilitate the use of PLC program to control the servo motor, realize the periodic lifting action of the ultra-clean spray head, facilitate the vertical cleaning of the inner wall of the vertical storage tank by the ultra-clean spray head, improve the cleaning effect, reduce the pollution source, and achieve the overall cleaning of the storage tank.

[0018] 2. The rotating mechanism cooperates with the lifting mechanism to facilitate the use of the lifting process of the movable seat to drive the lifting liquid metal inlet pipe to rotate, so that the ultra-clean spray head at the bottom end of the lifting liquid metal inlet pipe uniformly sprays the inner wall around the vertical storage tank, improves the cleaning effect, and the lifting liquid metal inlet pipe can rotate faster, so that the spray of the ultra-clean spray head quickly covers one round of the inner wall of the vertical storage tank, reduces the waste of water resources, and greatly improves the water saving effect.

[0019] 3. The angle adjusting mechanism cooperates with the rotating mechanism and the lifting mechanism to facilitate the use of the process of the lifting liquid metal inlet pipe descending to the limit to drive the ultra-clean spray head to rotate downward, so that the ultra-clean spray head can spray and clean the bottom end of the vertical storage tank, not only can the vertical storage tank be cleaned in all directions without dead angle, greatly saving the use of water resources, but also will not interfere with the horizontal rotation cleaning of the lifting liquid metal inlet pipe, greatly improving the practicability of the device, and the cleaning process is fully automatic, improving the efficiency of the storage tank cleaning, and the personnel can perform other operations during the cleaning of the device, improving the work efficiency in the factory. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only a part of the present application, and other drawings can be obtained by those skilled in the art without creating any inventive labor.

[0021] Figure 1 It is a whole three-dimensional schematic view of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application;

[0022] Figure 2 It is a whole three-dimensional schematic view of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application; Figure 1 It is a sectional view at A-A of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application;

[0023] Figure 3 It is a sectional view at B-B of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application; Figure 2 It is an enlarged schematic view at B of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application;

[0024] Figure 4 It is an enlarged schematic view at C of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application; Figure 2 It is an enlarged schematic view at C of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application;

[0025] Figure 5 It is a local three-dimensional schematic view of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application;

[0026] Figure 6 It is a local three-dimensional schematic view of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application; Figure 5 It is an enlarged schematic view at D of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application;

[0027] Figure 7 It is an enlarged schematic view at E of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application; Figure 5 It is an enlarged schematic view at E of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application;

[0028] Figure 8 It is an enlarged schematic view at F of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application. Figure 5 It is an enlarged schematic view at F of the automatic spray cleaning device for the vertical storage tank of high-purity chemicals according to the embodiment of the present application.

[0029] In the figure, the marks are: 1, vertical storage tank; 2, mounting base; 3, support seat; 4, servo motor; 5, screw rod; 6, movable seat; 7, support frame; 8, lifting liquid inlet metal pipe; 9, limiting guide seat; 10, super-clean spray head; 11, ultrapure water pipe connector; 12, rack; 13, gear; 14, first rotating wheel; 15, belt; 16, second rotating wheel; 17, rotating rod; 18, first bevel gear; 19, second bevel gear; 20, connecting hose; 21, connecting block; 22, rope belt; 23, sliding block; 24, sliding groove; 25, sliding cylinder; 26, reset spring; 27, limiting block. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below in combination with specific embodiments.

[0031] It should be noted that unless otherwise defined, technical terms or scientific terms used in the present application shall have the common meaning to those skilled in the art of the present application. The terms "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are only used to indicate relative positional relationships, which can change accordingly when the absolute positions of the described objects change.

[0032] Please refer to Figures 1 to 8 The present application provides a technical solution: an automatic spray cleaning device for a high-purity chemical vertical tank, comprising a vertical tank 1, an installation base 2 is fixedly installed at the upper end of the vertical tank 1 through a flange, a support seat 3 is fixedly installed at the upper end of the installation base 2, a limiting guide 9 is arranged at the upper end of the installation base 2 for guiding a lifting liquid inlet metal pipe 8, a super-clean spray head 10 is hingedly connected to the bottom end of the lifting liquid inlet metal pipe 8, a super-pure water pipe connector 11 is rotatably connected to the upper end of the lifting liquid inlet metal pipe 8, the super-pure water pipe connector 11 is used to connect a super-pure water pipe that passes through a limiting block 27. The spray cleaning device comprises a lifting mechanism, a rotating mechanism, and an angle adjusting mechanism. The lifting mechanism is used to drive the super-clean spray head 10 to lift and lower, so that the super-clean spray head 10 sprays and cleans different vertical positions of the inner wall of the vertical tank 1. The rotating mechanism uses the lifting power of the lifting mechanism to drive the super-clean spray head 10 at the bottom end of the lifting liquid inlet metal pipe 8 to rotate horizontally by 360 degrees, so that the super-clean spray head 10 uniformly cleans the inner wall of the vertical tank 1. The angle adjusting mechanism changes the vertical angle of the super-clean spray head 10 during the process of lowering the super-clean spray head 10 to the bottom end of the vertical tank 1, so that the super-clean spray head 10 fully sprays and cleans the bottom end of the vertical tank 1.

[0033] As an embodiment of the present application, as Figure 2 and Figure 3 and Figure 5As shown, the lifting mechanism comprises a servo motor 4 fixedly installed on the side wall of the support base 3, one end of the output shaft of the servo motor 4 is fixedly connected with a lead screw 5, the other end of the lead screw 5 is rotatably connected to the bottom end of the support base 3, the outer side of the lead screw 5 is threadedly connected with a movable seat 6, the inner side of the movable seat 6 is fixedly installed with a support frame 7, the support frame 7 is clamped with a lifting liquid inlet metal pipe 8, the side of the movable seat 6 is attached to the inner wall of the support base 3, the support frame 7 is rotatably connected with the lifting liquid inlet metal pipe 8, in use, the servo motor 4 is started by the PLC program of the external environment, the servo motor 4 drives the lead screw 5 to rotate, then because the lead screw 5 is threadedly connected with the movable seat 6, the movable seat 6 is attached to the support base 3, so the servo motor 4 drives the movable seat 6 to lift, then because the lifting liquid inlet metal pipe 8 is rotatably connected to the support frame 7 on one side of the movable seat 6, the ultra-clean spray head 10 is hingedly connected to the bottom end of the lifting liquid inlet metal pipe 8, so the movable seat 6 can drive the ultra-clean spray head 10 to lift, which is conducive to controlling the servo motor 4 by the PLC program, realizing the periodic lifting action of the ultra-clean spray head 10, facilitating the vertical cleaning of the inner wall of the vertical storage tank 1 by the ultra-clean spray head 10, improving the cleaning effect, reducing the pollution source, and achieving the overall cleaning of the inside of the storage tank.

[0034] As an embodiment of the present application, as Figure 3 and Figure 6 and Figure 7As shown, the rotating mechanism comprises a rack 12 fixedly installed on the inner wall of the support base 3, the rack 12 is engaged with a gear 13, the gear 13 is rotatably connected on one side of the movable seat 6, the other side of the gear 13 is fixedly installed with a first rotating wheel 14, the first rotating wheel 14 is drivingly connected with a second rotating wheel 16 through a belt 15, one side of the second rotating wheel 16 is fixedly connected with one end of a rotating rod 17, the other end of the rotating rod 17 is fixedly connected with a first bevel gear 18, the rotating rod 17 is rotatably connected on the support frame 7, the first bevel gear 18 is engaged with a second bevel gear 19, the second bevel gear 19 is fixedly installed on the lifting liquid metal inlet pipe 8, the first rotating wheel 14 and the second rotating wheel 16 are both circularly arranged, the diameter of the first rotating wheel 14 is larger than that of the second rotating wheel 16, when the movable seat 6 is lifted, because the movable seat 6 is rotatably connected with the gear 13, the gear 13 is engaged with the rack 12 on the support base 3, so the gear 13 drives the first rotating wheel 14 to rotate, then because the first rotating wheel 14 is drivingly connected with the second rotating wheel 16 through the belt 15, the diameter of the first rotating wheel 14 is larger than that of the second rotating wheel 16, so the first rotating wheel 14 drives the second rotating wheel 16 to rotate at a high speed, finally because the second rotating wheel 16 is fixedly connected with the first bevel gear 18 through the rotating rod 17, the first bevel gear 18 is engaged with the second bevel gear 19, the second bevel gear 19 is fixed on the lifting liquid metal inlet pipe 8, so the second rotating wheel 16 drives the ultra-clean spray head 10 at the bottom end of the lifting liquid metal inlet pipe 8 to rotate, which is beneficial to drive the lifting liquid metal inlet pipe 8 to rotate during the lifting process of the movable seat 6, so that the ultra-clean spray head 10 at the bottom end of the lifting liquid metal inlet pipe 8 can uniformly spray the inner wall around the vertical storage tank 1, improve the cleaning effect, and the lifting liquid metal inlet pipe 8 can rotate at a high speed, so that the spray of the ultra-clean spray head 10 can quickly cover one round of the inner wall of the vertical storage tank 1, reduce the waste of water resources, and greatly improve the water saving effect.

[0035] As an embodiment of the present application, as Figure 4 and Figure 7 and Figure 8As shown, the angle adjusting mechanism comprises a connecting hose 20 fixedly connected to the bottom end of the lifting liquid metal inlet pipe 8, the connecting hose 20 is fixedly connected with the ultra-clean spray head 10, one side of the ultra-clean spray head 10 is fixedly connected with a connecting block 21, one end of the connecting block 21 is fixedly connected with a rope belt 22, the other end of the rope belt 22 penetrates through the lifting liquid metal inlet pipe 8 and is fixedly connected with a sliding block 23, the sliding block 23 is clamped in a sliding groove 24, the sliding groove 24 is opened on the lifting liquid metal inlet pipe 8, the outer side of the sliding groove 24 is fixedly connected with a sliding cylinder 25, the sliding cylinder 25 is sleeved on the lifting liquid metal inlet pipe 8, the sliding block 23 is slidingly connected with the sliding groove 24, the sliding block 23 is matched with the sliding groove 24, the lifting liquid metal inlet pipe 8 and the connecting block 21 are fixedly connected with a return spring 26, the return spring 26 is sleeved on the rope belt 22, when the movable seat 6 drives the support frame 7 to approach the limiting guide base 9, the ultra-clean spray head 10 at the bottom end of the lifting liquid metal inlet pipe 8 approaches the bottom end of the vertical storage tank 1, then the sliding cylinder 25 sleeved on the lifting liquid metal inlet pipe 8 is extruded by the limiting guide base 9, the sliding block 23 in the sliding cylinder 25 slides upward in the sliding groove 24, then because the connecting block 21 on one side of the ultra-clean spray head 10 is fixedly connected with the rope belt 22, the other end of the rope belt 22 is fixedly connected with the sliding block 23, the ultra-clean spray head 10 is hinged to the bottom end of the lifting liquid metal inlet pipe 8, so the sliding block 23 drives the ultra-clean spray head 10 to rotate vertically downward through the connecting block 21 and the rope belt 22, the spray opening of the ultra-clean spray head 10 is opposite to the bottom end of the vertical storage tank 1, finally when the lifting liquid metal inlet pipe 8 moves upward, the sliding cylinder 25 loses the extrusion force of the limiting guide base 9, the restoring force of the return spring 26 drives the ultra-clean spray head 10 to return to the original position through the connecting block 21, which is beneficial to drive the ultra-clean spray head 10 to rotate downward during the process of the lifting liquid metal inlet pipe 8 descending to the limit, so that the ultra-clean spray head 10 can spray and clean the bottom end of the vertical storage tank 1, which not only can clean the vertical storage tank 1 in all directions without dead angle, greatly saves the use of water resources, but also will not interfere with the horizontal rotation cleaning of the lifting liquid metal inlet pipe 8, greatly improves the practicability of the device, and the cleaning process is fully automatic, improves the cleaning efficiency of the storage tank, and personnel can perform other operations during the cleaning of the device, improves the work efficiency in the factory.

[0036] Working principle: when in use, the servo motor 4 is started under the control of the PLC program in the external environment, the servo motor 4 drives the lead screw 5 to rotate, then because the lead screw 5 is threadedly connected with the movable seat 6, the movable seat 6 is attached to the support seat 3, so the servo motor 4 drives the movable seat 6 to ascend and descend, then because the support frame 7 on one side of the movable seat 6 is rotatably connected with the lifting liquid metal inlet pipe 8, the bottom end of the lifting liquid metal inlet pipe 8 is hinged with the ultra-clean spray head 10, so the movable seat 6 can drive the ultra-clean spray head 10 to ascend and descend;

[0037] When the movable seat 6 is lifted, because the movable seat 6 is rotationally connected with the gear 13, the gear 13 engages the rack 12 on the support seat 3, so the gear 13 drives the first rotating wheel 14 to rotate, then because the first rotating wheel 14 is drivingly connected with the second rotating wheel 16 through the belt 15, the first rotating wheel 14 is larger in diameter than the second rotating wheel 16, so the first rotating wheel 14 accelerates the second rotating wheel 16 to rotate, finally because the second rotating wheel 16 is fixedly connected with the first bevel gear 18 through the rotating rod 17, the first bevel gear 18 engages the second bevel gear 19, the second bevel gear 19 is fixed on the lifting liquid inlet metal pipe 8, so the second rotating wheel 16 drives the ultra-clean spray head 10 at the bottom end of the lifting liquid inlet metal pipe 8 to rotate;

[0038] When the movable seat 6 drives the support frame 7 to approach the limiting guide base 9, the ultra-clean spray head 10 at the bottom end of the lifting liquid inlet metal pipe 8 approaches the bottom end of the vertical storage tank 1, then the slide cylinder 25 sleeved on the lifting liquid inlet metal pipe 8 is extruded by the limiting guide base 9, so the slide block 23 on the inner side of the slide cylinder 25 slides upward in the slide groove 24, then because the connecting block 21 on one side of the ultra-clean spray head 10 is fixedly connected with the rope belt 22, the other end of the rope belt 22 is fixedly connected with the slide block 23, the ultra-clean spray head 10 is hinged at the bottom end of the lifting liquid inlet metal pipe 8, so the slide block 23 drives the ultra-clean spray head 10 to vertically rotate downward through the connecting block 21 and the rope belt 22, so that the spray opening of the ultra-clean spray head 10 is directed to the bottom end of the vertical storage tank 1, finally when the lifting liquid inlet metal pipe 8 moves upward, the slide cylinder 25 loses the extrusion force of the limiting guide base 9, the restoring force of the reset spring 26 drives the ultra-clean spray head 10 to return to the original position through the connecting block 21.

[0039] Those skilled in the art will understand that the above discussion of any embodiment is only exemplary and is not intended to imply that the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0040] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any one of the above-cited examples, or any other example, can be combined with any other example, or any other technology, to form an embodiment of the present application. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic spray cleaning device for a vertical storage tank of high-purity chemicals, comprising a vertical storage tank (1), wherein an installation base (2) is fixedly installed on the upper end of the vertical storage tank (1) via a flange, a support base (3) is fixedly installed on the upper end of the installation base (2), a limit guide (9) is provided on the upper end of the installation base (2) for guiding the lifting liquid inlet metal pipe (8), an ultra-clean spray head (10) is hinged to the bottom end of the lifting liquid inlet metal pipe (8), and an ultra-pure water pipe connector (11) is rotatably connected to the upper end of the lifting liquid inlet metal pipe (8), the ultra-pure water pipe connector (11) is used to connect an ultra-pure water pipeline passing through a limit block (27), characterized in that: The spray cleaning device includes a lifting mechanism, a rotating mechanism and an angle adjustment mechanism. The lifting mechanism is used to drive the ultra-clean spray head (10) to lift and lower, so that the ultra-clean spray head (10) sprays and cleans the inner wall of the vertical storage tank (1) at different vertical positions. The rotating mechanism uses the lifting power of the lifting mechanism to drive the ultra-clean spray head (10) at the bottom of the lifting liquid inlet metal pipe (8) to rotate horizontally by 360 degrees, so that the ultra-clean spray head (10) can evenly clean the inner wall of the vertical storage tank (1). The angle adjustment mechanism uses the extreme process of the ultra-clean spray head (10) descending to the bottom of the vertical storage tank (1) to change the vertical angle of the ultra-clean spray head (10) so that the ultra-clean spray head (10) can fully spray and clean the bottom of the vertical storage tank (1). The angle adjustment mechanism includes a connecting hose (20) fixedly connected to the bottom end of the lifting liquid inlet metal pipe (8), the connecting hose (20) is fixedly connected to an ultra-clean spray head (10), a connecting block (21) is fixedly connected to one side of the ultra-clean spray head (10), one end of a rope (22) is fixedly connected to the connecting block (21), the other end of the rope (22) passes through the lifting liquid inlet metal pipe (8) and is fixedly connected to a slider (23), the slider (23) is locked in a slide groove (24), the slide groove (24) is opened on the lifting liquid inlet metal pipe (8), a slide cylinder (25) is fixedly connected to the outside of the slide groove (24), and the slide cylinder (25) is sleeved on the lifting liquid inlet metal pipe (8); The slider (23) is slidably connected to the slide groove (24), and the slider (23) and the slide groove (24) are adapted to each other; A return spring (26) is fixedly connected between the lifting liquid inlet metal pipe (8) and the connecting block (21), and the return spring (26) is sleeved on the rope (22).

2. The automatic spray cleaning device for a vertical storage tank of high-purity chemicals according to claim 1, characterized in that, The lifting mechanism includes a servo motor (4) fixedly installed on the side wall of the support base (3). The output shaft of the servo motor (4) is fixedly connected to one end of a lead screw (5). The other end of the lead screw (5) is rotatably connected to the bottom end of the support base (3). The outer side of the lead screw (5) is threadedly connected to a movable seat (6). A support frame (7) is fixedly installed on the inner side of the movable seat (6). The support frame (7) is fitted with a lifting inlet metal pipe (8).

3. The automatic spray cleaning device for a vertical storage tank of high-purity chemicals according to claim 2, characterized in that, The side of the movable seat (6) is attached to the inner wall of the support seat (3), and the support frame (7) is rotatably connected to the lifting liquid inlet metal pipe (8).

4. The automatic spray cleaning device for a vertical storage tank of high-purity chemicals according to claim 1, characterized in that, The rotating mechanism includes a rack (12) fixedly installed on the inner wall of the support base (3), the rack (12) meshing with a gear (13), the gear (13) being rotatably connected to one side of the movable seat (6), and a first rotating wheel (14) fixedly installed on the other side of the gear (13), the first rotating wheel (14) being connected to a second rotating wheel (16) via a belt (15).

5. The automatic spray cleaning device for a vertical storage tank of high-purity chemicals according to claim 4, characterized in that, One end of a rotating rod (17) is fixedly connected to one side of the second rotating wheel (16), and the other end of the rotating rod (17) is fixedly connected to a first bevel gear (18). The rotating rod (17) is rotatably connected to the support frame (7).

6. The automatic spray cleaning device for a vertical storage tank of high-purity chemicals according to claim 5, characterized in that, The first bevel gear (18) meshes with the second bevel gear (19), which is fixedly installed on the lifting inlet metal pipe (8).

7. The automatic spray cleaning device for a vertical storage tank of high-purity chemicals according to claim 6, characterized in that, Both the first rotating wheel (14) and the second rotating wheel (16) are circular, and the diameter of the first rotating wheel (14) is larger than the diameter of the second rotating wheel (16).

Images