CN114789174A

CN114789174A - Storage tank cleaning device and method

Info

Publication number: CN114789174A
Application number: CN202210339212.7A
Authority: CN
Inventors: 叶雷生
Original assignee: China National Chemical Engineering Third Construction Co Ltd
Current assignee: China National Chemical Engineering Third Construction Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-26
Anticipated expiration: 2042-04-01
Also published as: CN114789174B

Abstract

The invention relates to a storage tank cleaning device in the technical field of storage tank cleaning devices, which is applied to a plurality of groups of storage tank main bodies and used for synchronously cleaning the interiors of the plurality of groups of storage tank main bodies, and comprises: the rotary chemical cleaning assembly is arranged at the top of the storage tank main body and used for cleaning the interior of the storage tank main body. According to the invention, the rotary chemical cleaning component is arranged at the top of the storage tank main body, the flow of cleaning liquid is utilized to drive the follow-up impeller, the rack is driven by the toothless gear, the follow-up gear and the driving gear to enable the guide frame to move downwards, the linkage plate is driven by the guide frame to enable the threaded pipe to move downwards, and the direction-variable nozzle is further driven to rotate up and down in a reciprocating manner to spray and clean, so that the cleaning range, the cleaning efficiency and the cleaning quality of the interior of the storage tank main body are improved.

Description

Storage tank cleaning device and method

Technical Field

The invention relates to the technical field of storage tank cleaning devices, in particular to a storage tank cleaning device and a storage tank cleaning method.

Background

At present, petrochemical device storage tanks are used more and more, and the requirement on the storage tanks, particularly the chemical cleaning of the interior of the storage tanks manufactured on site, is increasingly strict. The existing chemical cleaning method generally conveys acid and alkali liquor to be cleaned into a storage tank through a pressure pump, manually enters the interior for cleaning after a scaffold is erected, and discharges the acid and alkali liquor through a drain outlet at the bottom of the storage tank after cleaning.

However, the above tank cleaning device has the following disadvantages when in use: the cleaning cost is high, the work efficiency is poor, the effect is unsatisfactory, the potential safety hazard is big, current belt cleaning device can only wash by single equipment, and abluent acid-base liquid, water use amount are big, can not reuse moreover, and the washing waste liquid of emission has the environmental protection problem.

Disclosure of Invention

The present invention is directed to a tank cleaning apparatus and method to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a storage tank cleaning device, is applied to multiunit storage tank main part, is the multiunit the inside synchronous washing of storage tank main part, this storage tank cleaning device includes: the rotary chemical cleaning component is arranged at the top of the storage tank main body and is used for cleaning the interior of the storage tank main body;

the rotary chemical cleaning assembly comprises a support frame arranged at the top of the storage tank main body, a water inlet pipe is fixedly arranged at the top of the support frame, a threaded pipe communicated with the water inlet pipe is inserted into the bottom of the water inlet pipe in a threaded manner, a rotary driving part for driving the threaded pipe to move up and down and adjusting the cleaning direction of the direction-variable nozzle is arranged on the outer wall of the threaded pipe, and the direction-variable nozzle is arranged at the bottom of the threaded pipe.

Further, rotation type drive division includes that one end passes through the linkage board that the bearing movable sleeve located the screwed pipe outer wall bottom, top one side of linkage board is provided with the guide frame, one side of guide frame is provided with the rack, and the meshing of one side bottom of rack has drive gear, and drive gear passes through the axis body and rotates the setting in the mount pad, and the mount pad setting is bearing the frame top, bear the fixed cover of one end and establish at the inlet pipe outer wall.

Further, the top of inlet tube is provided with the direction shell that is linked together, and rotates through the axis body in the direction shell and be provided with the follow-up impeller, and the one end activity of axis body runs through direction shell one side, it is provided with the casing to bear the frame top, casing inner chamber top is provided with lacks the tooth gear, casing inner chamber below is provided with the follow-up gear with lacking tooth gear engagement, it all rotates through the pivot that sets up in centre of a circle department with the follow-up gear and sets up in the casing to lack tooth gear and follow-up gear, the pivot one end activity of lacking tooth gear centre of a circle department runs through casing one side and is connected through sprocket feed group transmission with the axis body one end in the follow-up impeller, the pivot one end activity of follow-up gear centre of a circle department runs through casing one side and is connected with drive gear drive the synchronous equidirectional rotation of drive gear when following up gear rotates.

Furthermore, vertical activity mouth has been seted up on the guide frame, the lateral wall that bears the frame is fixed to be set up the stopper, and the bottom in vertical activity mouth is arranged in to the one end of stopper, the stopper top is passed through the top inner wall connection of elastic component and vertical activity mouth.

Further, the variable direction nozzle includes:

the hollow seat is arranged at the bottom of the threaded pipe and communicated with the threaded pipe;

the annular array is arranged on a plurality of groups of notches on the circumferential outer wall of the hollow seat;

and the nozzle main body is rotatably arranged in the notch through a rotating shaft and a torsion spring and is communicated with the inner cavity of the hollow seat through a branch pipe.

Further, the bottom centre of a circle department of hollow seat is provided with a sealed section of thick bamboo, and the activity sets up the piston of looks adaptation in the sealed section of thick bamboo, and the fixed cover of piston is located the hollow piston rod outer wall top of tip, and the activity of piston rod bottom is run through sealed bobbin base portion and is equipped with reset spring, and the fixed cover of piston rod outer wall bottom is equipped with the go-between, the circumference outer wall annular array of go-between is provided with the multiunit and connects the rope, the other end and the nozzle main part bottom outer end of connecting the rope are connected.

Further, the top of stopper is provided with the inflator, the activity sets up the piston of looks adaptation in the inflator, and the piston bottom is through spring and inflator bottom inner wall connection, and the piston top is provided with the piston rod, and the activity of piston rod top runs through the inflator top and is connected with the contact piece, one side top of direction shell is provided with and contacts a complex and correspond the piece.

Furthermore, the bottom of the inflator is provided with a communicated air pipe, and the other end of the communicated air pipe is communicated with the bottom of the piston rod through a rotary joint.

Furtherly, the opposite side intercommunication of direction shell has the connecting pipe, and the one end of connecting pipe is provided with the spout towards the follow-up impeller, the multiunit the connecting pipe other end all is connected with pipe connection head one, and the pipe connection head other end communicates through the output of leading-in pipeline one with the filter, and the input of filter is connected with the output of centrifugal pump through leading-in pipeline two, the input of centrifugal pump passes through pipeline and stirred tank intercommunication, multiunit one side outer wall bottom of storage tank main part all communicates there is the drinking-water pipe, the multiunit the other end of drinking-water pipe all is connected with pipe connection head two, the two other ends of pipe connection head pass through the pipeline with the input of suction pump is connected, the output of suction pump passes through pipeline intercommunication stirred tank, and one side of leading-in pipeline two still communicates the waste water tank through the branch pipe.

The method for cleaning the storage tank by the storage tank cleaning device specifically comprises the following steps:

s1, feeding cleaning water or the cleaning agent after proportioning into a stirring tank, injecting the cleaning liquid into a filter through a guide pipeline II by a centrifugal pump, leading the liquid to enter a connecting pipe through the guide pipeline I, leading the cleaning liquid to enter a guide shell to enable a follow-up impeller to rotate, leading the cleaning liquid to enter a water inlet pipe and then enter a threaded pipe, finally leading the cleaning liquid to enter a hollow seat and enter a nozzle main body through a branch pipe, spraying the cleaning liquid from the nozzle main body to clean the inner cavity of the storage tank main body, discharging the cleaning liquid into the stirring tank from a water suction pipe under the action of a water suction pump, and recycling the cleaning liquid after being treated by the filter;

s2, when the follow-up impeller rotates, the sprocket transmission group enables the tooth-lacking gear to rotate, the tooth-lacking gear enables the follow-up gear to rotate, then the follow-up gear drives the driving gear to enable the rack to drive the guide frame to move downwards, the guide frame drives the threaded pipe to move downwards through the linkage plate, and when the threaded pipe moves downwards, the guide frame rotates under the effect of threaded connection, so that the direction-variable nozzle can spray water in a downward rotating mode, and the cleaning range and the cleaning quality of the inner cavity of the storage tank main body are improved;

s3: the guide frame moves downwards to represent that the direction-changeable nozzle moves to a position close to the bottom of an inner cavity of the storage tank main body, so that the contact block is in contact with the corresponding block, when the direction-changeable nozzle moves downwards, the rod body is pressed to enable the piston to move downwards in the inflator, gas below the piston in the inflator is pressed into the communicating gas pipe, the communicating gas pipe enables the pressed gas to enter the piston rod through the rotary joint, the pressed gas enters the sealing cylinder through the piston rod and is positioned above the plug body in the sealing cylinder, the plug body moves downwards in the sealing cylinder along with gradual increase of the gas, the piston rod drives the connecting ring to move downwards, the connecting rope pulls the nozzle main body to enable the nozzle main body to spray water to face the bottom of the inner cavity of the storage tank main body, efficient cleaning of the bottom of the inner cavity of the storage tank main body is achieved, when a toothless section on the toothless gear corresponds to the follow-up gear, the guide frame resets upwards under the action of the elastic piece, and accordingly the direction-changeable nozzle rotates upwards to move, at this time, the piston rod is reset, the rod body is also reset, and further the nozzle body is reset.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention is provided with a rotary chemical cleaning component on the top of the storage tank main body, a follow-up impeller is driven by the flowing of cleaning liquid, a rack is driven by a toothless gear, a follow-up gear and a driving gear to enable a guide frame to move downwards, the guide frame drives a linkage plate to enable a threaded pipe to move downwards, and further a direction-variable nozzle is driven to rotate up and down in a reciprocating spraying manner to clean, so that the cleaning range, the cleaning efficiency and the cleaning quality of the interior of the storage tank main body are improved, meanwhile, air in an air cylinder is pressed into a sealing cylinder when the guide frame moves downwards, a piston rod moves downwards, and further the direction-variable nozzle enables the nozzle to spray water downwards when approaching the bottom of an inner cavity of the storage tank main body, so that the cleaning dead angle of the storage tank main body is avoided, the cleaning quality of the interior of the storage tank main body is further improved, and meanwhile, the rotary chemical cleaning component in the invention does not need to adopt independent driving equipment, the use cost is reduced when conveniently getting into the inside use of storage tank main part, and it is higher to wash the security.

(2) The cleaning water or the cleaning agent after proportioning enters a stirring tank, the cleaning liquid is injected into a filter through a second inlet pipeline by a centrifugal pump, the liquid enters a connecting pipe through the first inlet pipeline, the cleaning liquid enters a guide shell to enable a follow-up impeller to rotate, meanwhile, the cleaning liquid enters a water inlet pipe and then enters a threaded pipe, finally, the cleaning liquid enters a hollow seat and enters a nozzle main body through a branch pipe, the cleaning liquid is sprayed out of the nozzle main body to clean the inner cavity of a storage tank main body, the cleaning liquid is discharged into the stirring tank from a water pumping pipe under the action of a water pumping pump and is recycled after being treated by the filter, the cleaning liquid is discharged into a waste water tank to be collected after being cleaned, the waste of water resources is reduced, the discharge of industrial waste water is greatly reduced, the use amount of relevant acid and alkali liquor for chemical cleaning is greatly reduced, the recycling is formed, the operation of a large amount of closed space is greatly reduced, and a plurality of storage tanks can be cleaned simultaneously, has good effect on safety and economic benefit control.

Drawings

FIG. 1 is a schematic view of a tank cleaning apparatus according to the present invention;

FIG. 2 is a schematic view of a rotary chemical cleaning assembly of the cleaning apparatus for storage tanks of the present invention;

FIG. 3 is a schematic view of a rotary driving unit of the cleaning apparatus for storage tank according to the present invention;

FIG. 4 is an enlarged view of the structure A in FIG. 3;

FIG. 5 is a sectional view of the housing of FIG. 4 illustrating a tank cleaning apparatus according to the present invention;

FIG. 6 is a schematic view of a direction-changeable nozzle of the tank cleaning device according to the present invention;

FIG. 7 is an enlarged view of the structure B in FIG. 6.

In the figure: 1. a tank main body; 2. a rotary chemical cleaning assembly; 21. a support frame; 22. a water inlet pipe; 23. a guide housing; 24. a threaded pipe; 25. a rotary drive section; 251. a sprocket drive group; 252. a linkage plate; 253. an air cylinder; 254. the air pipe is communicated; 255. a contact block; 256. a carrier; 257. a guide frame; 258. a rack; 259. a limiting block; 2510. an elastic member; 2511. a housing; 2512. a gear with missing teeth; 2513. a follower gear; 26. a variable direction nozzle; 261. a hollow seat; 262. a nozzle body; 263. a branch pipe; 264. a connecting ring; 265. a sealing cylinder; 266. connecting ropes; 267. a rotary joint; 3. a connecting pipe; 4. a centrifugal pump; 5. a water pumping pipe; 6. a water pump.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, a storage tank cleaning apparatus, which is applied to a plurality of storage tank main bodies 1 for performing a synchronous cleaning operation thereon, includes a rotary chemical cleaning assembly 2 disposed at the top of the storage tank main body 1 for cleaning the interior of the storage tank main body 1;

further, as shown in fig. 2, the rotary chemical cleaning assembly 2 includes a support frame 21 clamped on the top of the storage tank main body 1, a water inlet pipe 22 is fixedly disposed on the top of the support frame 21, a threaded pipe 24 is inserted into the bottom of the water inlet pipe 22, the threaded pipe 24 is connected with an internal thread of the inner wall of the water inlet pipe 22 through an external thread of the outer wall in a matching manner, so that the threaded pipe 24 can rotate when moving upwards or downwards, the water inlet pipe 22 is communicated with the threaded pipe 24 for guiding the entering liquid, meanwhile, a guide shell 23 communicated with the top of the water inlet pipe 22 is disposed on the top of the guide shell 22, a follower impeller (as shown in fig. 5) is disposed in the guide shell 23 through a shaft body rotation, the shaft body movably penetrates one side of the guide shell 23, one side of the guide shell 23 is fixedly inserted with one end of a connecting pipe 3, a nozzle facing the follower impeller is disposed at one end of the connecting pipe 3, the liquid is ejected from the nozzle through the connecting pipe 3 to drive the follower impeller to rotate, a rotary driving part 25 is arranged on the outer wall of the threaded pipe 24, a direction-changeable nozzle 26 is connected to the bottom of the threaded pipe 24, and the rotary driving part 25 is used for driving the threaded pipe 24 to move up and down and adjusting the cleaning direction of the direction-changeable nozzle 26;

as shown in fig. 3-4, the rotary driving part 25 includes a linkage plate 252 having one end sleeved on the bottom of the outer wall of the threaded pipe 24 through a bearing, the linkage plate 252 drives the threaded pipe 24 to move up and down without interfering with the rotation of the threaded pipe 24, a guide frame 257 is disposed on one side of the top of the linkage plate 252, a vertical moving opening is disposed in the guide frame 257, a rack 258 having the same height is disposed on one side of the linkage plate 252, a driving gear is engaged with the bottom of one side of the rack 258, the driving gear is disposed on the top of a carrier 256 through a mounting seat and a shaft body, and one end of the carrier 256 is fixedly sleeved on the bottom of the outer wall of the water inlet pipe 22;

as shown in fig. 3-5, a housing 2511 is disposed on one side of the top of the bearing frame 256, a gear 2512 with missing teeth is disposed above an inner cavity of the housing 2511, a follower gear 2513 is engaged with one side of the gear 2512 with missing teeth, the gear 2512 with the follower gear 2513 are both rotatably disposed in the housing 2511 through a rotating shaft disposed at the center of a circle, wherein one end of a shaft movably penetrates through the housing 2511, the driving gear is coaxially connected with the follower gear 2513, and one end of the shaft in the follower impeller is in transmission connection with the rotating shaft at the center of the circle of the gear 2512 through a sprocket transmission set 251;

it should be noted that the diameter of the gear 2512 with teeth is larger than that of the follower gear 2513, so that the travel of the driving gear driving the rack 258 is longer, and the gear 2512 with teeth comprises a circular disk and a plurality of sets of teeth arranged on the outer wall of the circumference of the circular disk in an arc array. Meanwhile, the rotation direction of the driving gear is opposite to that of the follow-up impeller, the rotation direction of the follow-up impeller is determined by the direction of the nozzle, the driving gear rotates to enable the rack 258 to face downwards, namely the driving gear rotates clockwise, further the follow-up gear 2513 rotates clockwise, and the follow-up impeller rotates anticlockwise, namely the gear with missing teeth 2512 rotates anticlockwise. The sprocket drive group 251 belongs to the prior art and comprises two groups of sprockets and a chain.

Furthermore, a limiting block 259 is fixedly arranged on the outer wall of the side face of the bearing frame 256, one end of the limiting block 259 is arranged at the bottom in the vertical moving opening in the guide frame 257, and the top of the limiting block 259 is connected with the inner wall of the top of the vertical moving opening of the guide frame 257 by an elastic piece 2510;

wherein the limiting block 259 is L-shaped. The elastic member 2510 adopts a spring structure. When the toothless section of the outer wall of the toothless gear 2512 corresponds to the follow-up gear 2513, the guide frame 257 moves upwards to reset under the action of the elastic part 2510, so that the linkage plate 252 drives the threaded pipe 24 to rotate upwards to reset.

Example two

As shown in fig. 6-7, the direction-changeable nozzle 26 includes a hollow seat 261 disposed at the bottom of the threaded pipe 24 and communicated with the threaded pipe, a plurality of sets of notches are disposed in an annular array on the outer circumferential wall of the hollow seat 261, a nozzle main body 262 is rotatably disposed in the notches through a rotating shaft and a torsion spring, a branch pipe 263 communicated with the inner cavity of the hollow seat 261 is disposed on the outer wall of the nozzle main body 262, and the liquid entering the hollow seat 261 enters the nozzle main body 262 through the branch pipe 263 and is ejected out.

Wherein, the effect of pivot and torsional spring makes the one end of nozzle main body 262 overturn downwards, and then washs the scope when wasing storage tank main body 1 inner chamber bottom wider, can reset under the effect of torsional spring at follow-up nozzle main body 262 simultaneously and resume to horizontal state.

Example 3

As shown in fig. 6-7, a sealing cylinder 265 is arranged at the center of a circle at the bottom of the hollow seat 261, a piston (not shown in the figure) is arranged in an inner cavity of the sealing cylinder 265, the piston is fixedly sleeved at the top of the outer wall of the piston rod, the top and the bottom of the piston rod are both hollow, wherein the bottom of the piston rod is communicated with one end of the communicating air pipe 254 through a rotary joint 267, a return spring is sleeved on the outer wall of the piston rod, a connecting ring 264 is sleeved at the bottom of the outer wall of the piston rod, a plurality of groups of connecting ropes 266 are arranged in an annular array on the outer wall of the circumference of the connecting ring 264, the plurality of groups of connecting ropes 266 are in one-to-one correspondence with the nozzle main body 262, and the other end of the connecting ropes 266 is connected with the outer end of the bottom of the nozzle main body 262;

wherein, the air enters the piston rod from the communicating tube 254, and then enters the sealing cylinder 265 from the piston rod, so that the plug body moves downwards in the sealing cylinder 265, so that the piston rod moves downwards, and then the nozzle main body 262 is pulled by the connecting rope 266 to make one end of the nozzle main body downwards, and the direction of the water spray is changed. One end of the return spring is connected with the inner wall of the bottom of the sealing cylinder 265, and the other end is connected with the top of the connecting ring 264. The rotary joint 267 is of the prior art, and the rotary joint 267 refers to: the conduit is connected to the device and the associated conduits are relatively rotatable so that the sealing cylinder 265 and the piston rod do not interfere with the connection to the communicating air tube 254 as they rotate with the hollow seat 261.

In this embodiment, the hollow seat 261 is preferably disc-shaped, with an annular chamber inside that communicates with the threaded pipe 24.

Example 4

As shown in fig. 6-7, an air cylinder 253 is arranged on the top of the limiting block 259, a piston (not shown) is movably arranged in the air cylinder 253, the bottom of the piston is connected with the inner wall of the bottom of the air cylinder 253 by a spring (not shown), a rod body is arranged on the top of the piston, the top of the rod body movably penetrates through the top of the air cylinder 253 and is connected with a corresponding block, a contact block 255 is arranged on the top of the outer wall on one side of the guide frame 257, when the guide frame 257 is downward, the contact block 255 is made to contact the corresponding block, and when the guide frame is further downward, the rod body is pressed to enable the piston to move downward in the air cylinder 253, the bottom of the air cylinder 253 is connected with a rotary joint 267 through a communicating air pipe 254, and the piston moves downward in the air cylinder 253 to enable the air in the communicating air pipe 254 to enter the sealing cylinder 265;

it should be noted that, an air vent is disposed at the bottom of the sealing cylinder 265 and at the top of the air cylinder 253, and when the piston moves downward in the air cylinder 253, the external air can enter and exit the air cylinder 253, so as to ensure the air pressure inside the air cylinder 253 to be balanced.

Example 5

As shown in fig. 1, the other ends of the multiple groups of connecting pipes 3 are all connected with a first pipe connector, the other ends of the first pipe connectors are communicated with the output end of a filter (not shown in the figure) through a first leading-in pipe, the input end of the filter is connected with the output end of a centrifugal pump 4 through a second leading-in pipe, the input end of the centrifugal pump 4 is communicated with a stirring tank (not shown in the figure) through a pipe, the bottom of the outer wall of one side of the multiple groups of storage tank main bodies 1 is communicated with a water pumping pipe 5 for discharging cleaning liquid, the other ends of the multiple groups of water pumping pipes 5 are all connected with a second pipe connector, the other ends of the second pipe connectors are connected with the input end of a water pumping pump 6 through a pipe, the output end of the water pumping pump 6 is communicated with the stirring tank through a pipe, and one side of the second leading-in pipe is also communicated with a waste water tank (not shown in the figure).

Wherein, be provided with the manometer in connecting pipe 3, be provided with the valve body in connecting pipe 3, drinking-water pipe 5, minute pipe and leading-in pipeline two, be provided with the level gauge in drinking-water pipe 5.

In summary, a method for cleaning a storage tank by a storage tank cleaning device specifically comprises the following steps:

s1, feeding cleaning water or the proportioned cleaning agent into a stirring tank, injecting cleaning liquid into a filter through a first introduction pipeline and a second introduction pipeline by a centrifugal pump 4, enabling the liquid to enter a connecting pipe 3 through the first introduction pipeline, enabling the cleaning liquid to enter a guide shell 23 to enable a follow-up impeller to rotate, enabling the cleaning liquid to enter a water inlet pipe 22 and then enter a threaded pipe 24, finally entering a hollow seat 261 and entering a nozzle main body 262 through branch pipes, spraying the cleaning liquid from the nozzle main body 262 to clean the inner cavity of the storage tank main body 1, discharging the cleaned liquid into the stirring tank from a water pumping pipe 5 under the action of a water pump 6, and recycling the cleaned liquid after being treated by the filter;

s2, when the follow-up impeller rotates, the sprocket transmission set 251 enables the gear 2512 with missing teeth to rotate, the gear 2512 with missing teeth enables the follow-up gear 2513 to rotate, then the follow-up gear 2513 drives the driving gear to enable the rack 258 to drive the guide frame 257 to face downwards, the guide frame 257 drives the threaded pipe 24 to face downwards through the linkage plate 252, when the threaded pipe 24 faces downwards, the threaded pipe rotates under the effect of threaded connection, so that the direction-variable nozzle 26 sprays water in a downward rotating mode, and the cleaning range and the cleaning quality of the inner cavity of the storage tank main body 1 are improved;

s3: the guide frame 257 moves downwards to represent that the direction-changeable nozzle 26 moves to a position close to the bottom of the inner cavity of the storage tank main body 1, so that the contact block 255 is in contact with the corresponding block, when the direction-changeable nozzle moves downwards, the rod body is pressed to enable the piston to move downwards in the air cylinder 253, air below the piston in the air cylinder 253 is pressed into the communicating air pipe 254, the communicating air pipe 254 enables the pressed air to enter the piston rod through the rotary joint 267, the pressed air enters the sealing cylinder 265 through the piston rod and is positioned above the plug body in the sealing cylinder 265, the plug body moves downwards in the sealing cylinder 265 along with gradual increase of the air, the piston rod drives the connecting ring 264 to move downwards, the connecting rope 266 pulls the nozzle main body 262 to enable the nozzle to spray water towards the bottom of the inner cavity of the storage tank main body 1, so that the bottom of the inner cavity of the storage tank main body 1 is cleaned efficiently, when a tooth-free section on the tooth-missing gear 2512 corresponds to the follower gear 2513, the guide frame 257 is reset upward by the elastic member 2510, so that the direction-changeable nozzle 26 is rotated and moved upward, at this time, the piston rod is reset, the rod body is reset, and the nozzle body 262 is reset.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, the specific connection mode of each part adopts the conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so the detailed description is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a storage tank cleaning device, is applied to multiunit storage tank main part (1), is the multiunit storage tank main part (1) inside washs its characterized in that in step: this storage tank belt cleaning device includes: the rotary chemical cleaning component (2) is arranged at the top of the storage tank main body (1) and is used for cleaning the interior of the storage tank main body (1);

the rotary chemical cleaning assembly (2) comprises a support frame (21) arranged at the top of the storage tank main body (1), a water inlet pipe (22) is fixedly arranged at the top of the support frame (21), a threaded pipe (24) communicated with the water inlet pipe (22) is inserted into the bottom of the water inlet pipe in a threaded manner, a rotary driving part (25) for driving the threaded pipe (24) to move up and down and adjusting the cleaning direction of the direction-variable nozzle (26) is arranged on the outer wall of the threaded pipe (24), and the direction-variable nozzle (26) is arranged at the bottom of the threaded pipe (24).

2. The tank cleaning device according to claim 1, wherein: rotation type drive division (25) include that one end passes through the bearing movable sleeve and locates linkage board (252) of screwed pipe (24) outer wall bottom, top one side of linkage board (252) is provided with direction frame (257), one side of direction frame (257) is provided with rack (258), and the meshing of one side bottom of rack (258) has drive gear, and drive gear passes through the axis body and rotates the setting in the mount pad, and the mount pad setting is bearing frame (256) top, bear the fixed cover of one end of frame (256) and establish at inlet tube (22) outer wall.

3. The tank cleaning device according to claim 2, wherein: the top of the water inlet pipe (22) is provided with a guide shell (23) which is communicated with the water inlet pipe, a follow-up impeller is rotatably arranged in the guide shell (23) through a shaft body, one end of the shaft body movably penetrates through one side of the guide shell (23), the top of the bearing frame (256) is provided with a shell (2511), a tooth-lacking gear (2512) is arranged above the inner cavity of the shell (2511), a follow-up gear (2513) which is meshed with the tooth-lacking gear (2512) is arranged below the inner cavity of the shell (2511), the tooth-lacking gear (2512) and the follow-up gear (2513) are both rotatably arranged in the shell (2511) through a rotating shaft arranged at the circle center, one end of a rotating shaft at the circle center of the tooth-lacking gear (2512) movably penetrates through one side of the shell (2511) and is in transmission connection with one end of the shaft body in the follow-up impeller through a chain wheel transmission set (251), one end of the rotating shaft at the circle center of the follow-up gear (2513) movably penetrates through one side of the shell (2511) and is connected with a driving gear, when the follow-up gear (2513) rotates, the drive gear is driven to synchronously rotate in the same direction.

4. A tank cleaning device according to claim 3, characterized in that: vertical activity mouth has been seted up on guide frame (257), the lateral wall that bears frame (256) is fixed to be set up stopper (259), and the bottom in vertical activity mouth is arranged in to the one end of stopper (259), stopper (259) top is passed through elastic component (2510) and is connected with the top inner wall of vertical activity mouth.

5. The tank cleaning device according to claim 4, wherein: the variable direction nozzle (26) comprises:

a hollow seat (261) which is arranged at the bottom of the threaded pipe (24) and is communicated with the threaded pipe (24);

the annular array is arranged on a plurality of groups of notches on the circumferential outer wall of the hollow seat (261);

and the nozzle main body (262) is rotatably arranged in the notch through a rotating shaft and a torsion spring, and the nozzle main body (262) is communicated with the inner cavity of the hollow seat (261) through a branch pipe (263).

6. The tank cleaning device according to claim 5, wherein: the bottom centre of a circle department of hollow seat (261) is provided with sealed section of thick bamboo (265), and sealed section of thick bamboo (265) internalization sets up the piston of looks adaptation, and the fixed cover of piston is located the hollow piston rod outer wall top of tip, and piston rod bottom activity runs through sealed section of thick bamboo (265) bottom and the cover is equipped with reset spring, and the fixed cover in piston rod outer wall bottom is equipped with go-between (264), the circumference outer wall annular array of go-between (264) is provided with multiunit connection rope (266), the other end and the nozzle main part (262) bottom outer end of connecting rope (266) are connected.

7. The tank cleaning device according to claim 6, wherein: the top of stopper (259) is provided with inflator (253), inflator (253) internalization sets up the piston of looks adaptation, and the piston bottom passes through spring and inflator (253) bottom inner wall connection, and the piston top is provided with the piston rod, and the activity of piston rod top is run through inflator (253) top and is connected with contact piece (255), one side top of direction shell (23) is provided with and is contacted piece (255) complex and correspond the piece.

8. The tank cleaning device according to claim 7, wherein: the bottom of the air cylinder (253) is provided with a communicated air pipe (254), and the other end of the communicated air pipe (254) is communicated with the bottom of the piston rod through a rotary joint (267).

9. The tank cleaning device according to claim 8, wherein: the other side of the guide shell (23) is communicated with a connecting pipe (3), one end of the connecting pipe (3) is provided with a nozzle facing the follow-up impeller, the other ends of a plurality of groups of the connecting pipes (3) are all connected with a first pipeline connector, the other end of the first pipeline connector is communicated with the output end of a filter through a first lead-in pipeline, the input end of the filter is connected with the output end of the centrifugal pump (4) through a second lead-in pipeline, the input end of the centrifugal pump (4) is communicated with the stirring tank through a pipeline, the bottoms of the outer walls of one side of the storage tank main bodies (1) are communicated with water pumping pipes (5), the other ends of the water pumping pipes (5) are connected with a second pipeline connector, the other end of the second pipeline connector is connected with the input end of the water pumping pump (6) through a pipeline, the output end of the water suction pump (6) is communicated with the stirring tank through a pipeline, and one side of the leading-in pipeline II is communicated with the waste water tank through a branch pipe.

10. A tank cleaning method using the tank cleaning device according to claim 9, characterized in that: the method comprises the following steps:

s1, feeding cleaning water or a cleaning agent after proportioning into a stirring tank, injecting cleaning liquid into a filter through a guide pipeline II by a centrifugal pump (4), so that the liquid enters a connecting pipe (3) through the guide pipeline I, the cleaning liquid enters a guide shell (23) to rotate a follow-up impeller, the cleaning liquid enters a water inlet pipe (22) and then enters a threaded pipe (24), finally enters a hollow seat (261) and enters a nozzle main body (262) through a branch pipe, the cleaning liquid is sprayed out from the nozzle main body (262) to clean the inner cavity of the storage tank main body (1), the cleaning liquid is discharged into the stirring tank from a water pumping pipe (5) under the action of a water pump (6), and the cleaning liquid is recycled after being treated by the filter;

s2, when the follow-up impeller rotates, the gear with missing teeth (2512) rotates through the chain wheel transmission set (251), the gear with missing teeth (2512) rotates the follow-up gear (2513), the follow-up gear (2513) drives the driving gear to enable the rack (258) to drive the guide frame (257) to face downwards, the guide frame (257) drives the threaded pipe (24) to face downwards through the linkage plate (252), and when the threaded pipe (24) faces downwards, the threaded pipe rotates under the effect of threaded connection, so that the direction-variable nozzle (26) rotates downwards to spray water, and the cleaning range and the cleaning quality of the inner cavity of the storage tank main body (1) are improved;

s3: the guide frame (257) moves downwards to represent that the direction-changeable nozzle (26) moves to a position close to the bottom of the inner cavity of the storage tank main body (1), so that the contact block (255) is in contact with the corresponding block, and further when the direction-changeable nozzle moves downwards, the rod body is pressed to enable the piston to move downwards in the air cylinder (253), gas below the piston in the air cylinder (253) is pressed into the communicating air pipe (254), the communicating air pipe (254) enables the pressed gas to enter the piston rod through the rotary joint (267), the pressed gas enters the sealing cylinder (265) through the piston rod and is positioned above the plug body in the sealing cylinder (265), along with gradual increase of the gas, the plug body moves downwards in the sealing cylinder (265), and then the piston rod drives the connecting ring (264) to move downwards, so that the connecting rope (266) pulls the nozzle main body (262) to enable the nozzle body to face the bottom of the inner cavity of the water spraying storage tank main body (1), and efficient cleaning of the bottom of the inner cavity of the storage tank main body (1) is realized, when the toothless section on the toothless gear (2512) corresponds to the follow-up gear (2513), the guide frame (257) resets upwards under the action of the elastic piece (2510), so that the direction-variable nozzle (26) rotates and moves upwards, at the moment, the piston rod resets, the rod body also resets, and the nozzle body (262) resets.