CN113787068A - Dehydrogenation reactor cleaning device - Google Patents

Dehydrogenation reactor cleaning device Download PDF

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Publication number
CN113787068A
CN113787068A CN202111358316.4A CN202111358316A CN113787068A CN 113787068 A CN113787068 A CN 113787068A CN 202111358316 A CN202111358316 A CN 202111358316A CN 113787068 A CN113787068 A CN 113787068A
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CN
China
Prior art keywords
water tank
reciprocating lead
nozzle
lead screw
dehydrogenation reactor
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Granted
Application number
CN202111358316.4A
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Chinese (zh)
Other versions
CN113787068B (en
Inventor
宋武生
康新成
祝书伟
刘茂密
张晓振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Shenchi Petrochemical Co ltd
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Shandong Shenchi Petrochemical Co ltd
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Priority to CN202111358316.4A priority Critical patent/CN113787068B/en
Publication of CN113787068A publication Critical patent/CN113787068A/en
Application granted granted Critical
Publication of CN113787068B publication Critical patent/CN113787068B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/087Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/0804Cleaning containers having tubular shape, e.g. casks, barrels, drums
    • B08B9/0808Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/0804Cleaning containers having tubular shape, e.g. casks, barrels, drums
    • B08B9/0813Cleaning containers having tubular shape, e.g. casks, barrels, drums by the force of jets or sprays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/093Cleaning containers, e.g. tanks by the force of jets or sprays

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

The invention belongs to the field of cleaning, and discloses a cleaning device for a dehydrogenation reactor, which comprises a fixed seat, wherein a plurality of through holes are formed in the fixed seat, the through holes are vertically formed, screw moving seats are fixedly arranged in the through holes, reciprocating lead screws penetrate through the screw moving seats, the reciprocating lead screws are of tubular structures, water supply pipes are rotatably arranged in the reciprocating lead screws, the water outlet ends of the water supply pipes are connected with a water tank through rotary joints, the water tank is positioned below the reciprocating lead screws, the reciprocating lead screws are perpendicular to the water tank, a plurality of nozzles are rotatably arranged on the side circumference of the water tank, and the included angle between the nozzles and the water tank is smaller than 90 degrees. The invention cleans the tube array in sequence through three physical cleaning procedures, has no dead angle, and can ensure no residual scale to the maximum extent; the high change of clean procedure is realized to make full use of high-pressure jet's reaction force, has simplified equipment structure, need not additionally to install the power supply again, can form similar sandblast abluent effect when the dirt end reentries the tubulation.

Description

Dehydrogenation reactor cleaning device
Technical Field
The invention belongs to the field of cleaning, and particularly relates to a cleaning device for a dehydrogenation reactor.
Background
Aiming at the problem that the heat transfer efficiency is seriously influenced by the scaling of a reactor, scientific researchers start with two aspects of scaling prevention and timely cleaning of a scale layer, and the scaling prevention is characterized by improving the arrangement mode of pipes, optimizing the flow velocity of a medium, trying to cause pressure pulsation and the like, but the generation of the scale layer still cannot be avoided; at present, the domestic method for removing the scale layer mainly comprises mechanical cleaning, chemical cleaning and ultrasonic descaling, and has the advantages and disadvantages, for example, the mechanical cleaning is quick in effect but needs to be assembled and disassembled, the chemical cleaning is more comprehensive but the cleaning intensity is low, and the like.
Disclosure of Invention
The invention provides a cleaning device for a dehydrogenation reactor, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
a cleaning device for a dehydrogenation reactor comprises a fixed seat, wherein a plurality of through holes are formed in the fixed seat, the through holes are vertically arranged, screw moving seats are fixedly installed in the through holes, reciprocating lead screws penetrate through the screw moving seats, the reciprocating lead screws are of tubular structures, water supply pipes are rotatably installed in the reciprocating lead screws, the water outlet ends of the water supply pipes are connected with a water tank through rotary joints, the water tank is located below the reciprocating lead screws, the reciprocating lead screws are perpendicular to the water tank, a plurality of nozzles are rotatably installed on the side circumferences of the water tank, the included angle between each nozzle and the water tank is smaller than 90 degrees, a plurality of scrapers are fixedly installed on the water tank, the lower portions of the scrapers are of tooth-shaped structures, steel wire brushes are installed on the bottom surface of the water tank through first elastic telescopic rods, the nozzles are respectively connected with corresponding steel wire brushes through connecting rods, the upper ends of the connecting rods are hinged to the inner sides of the nozzles, namely the connecting rods are located in the included angles between the nozzles and the water tank, the lower ends of the connecting rods are hinged to the top surfaces of the steel wire brushes, the one end of the end coupling hose that intakes of delivery pipe, the top of fixing base is equipped with the flow divider, the other end of hose all is connected with the outflow end of flow divider, the clean liquid source is connected through the force (forcing) pump to the inflow end of flow divider, draw a tube coupling to the import of force (forcing) pump from the reactor bottom, set up one filtering program on the pipeline, the aperture of filter screen is greater than 3mm among the filtering program, the scale deposit powder that is less than 3mm can be along with the row pipe wall of cleaning solution impact reactor.
As above a dehydrogenation reactor cleaning device, the inner wall bottom of reciprocal lead screw set up the several draw-in groove, the bottom intercommunication of draw-in groove is external, the top surface fixed mounting several riser of water tank, riser and draw-in groove one-to-one, the equal fixed mounting second elasticity telescopic link in inboard of riser, the equal fixed mounting card post of expansion end of second elasticity telescopic link, the card post can be located the draw-in groove that corresponds simultaneously.
The cleaning device for the dehydrogenation reactor is characterized in that the diameter of the nozzle is larger than the pitch of the reciprocating lead screw.
According to the cleaning device for the dehydrogenation reactor, the fixed seat and the flow dividing valve are connected through the plurality of upright posts.
According to the cleaning device for the dehydrogenation reactor, the fixed seat is of a fan-shaped structure, and the through holes in the fixed seat are distributed in a fan shape.
The invention has the advantages that: the device is used for cleaning a tubular dehydrogenation reactor, a fixed seat can be arranged on a scissor-fork type or crank arm type aerial work platform, when in use, an upper cover of the reactor is firstly opened, then the fixed seat is positioned above the reactor, then a steel wire brush is aligned to the upper end of the tubular, then the fixed seat is descended until a nozzle is submerged into the tubular, the length of a reciprocating lead screw corresponds to the length of the tubular, after a user opens a booster pump, cleaning fluid is ejected from the nozzle after passing through a flow divider valve, a hose, a water supply pipe, a rotary joint and a water tank, a scale layer is broken through impact force, because the water tank is rotationally connected with the water supply pipe, the cleaning fluid can exert reaction force on the nozzle when being ejected, so that the water tank can rotate, the water tank drives the reciprocating lead screw to rotate, at the moment, because a screw moving seat keeps still, the reciprocating lead screw moves downwards, the steel wire brush, the nozzle and a scraper can move downwards while rotating, can not leave the tubulation wall at dead angle clean, when the steel brush moves down, because of with the contact of tubulation wall, receive ascending frictional force, so first elasticity telescopic link is in the shrink state, the connecting rod jack-up nozzle that makes progress, make it be in the horizontal direction efflux, when the steel brush rebound, receive decurrent frictional force, first elasticity telescopic link is in the extension state, connecting rod pulling nozzle downwardly rotating, be used for the dirty and the scraper that adhere to on the cleaning steel brush scrape the dirt that falls in the steel brush top surface, after reciprocal lead screw rebound to initial position, change the position of fixing base, make it towards other tubulation, repeat above-mentioned process. The invention cleans the tube array in sequence through three physical cleaning procedures, has no dead angle, and can ensure no residual scale to the maximum extent; the height change of the cleaning procedure is realized by fully utilizing the reaction force of the high-pressure jet flow, the equipment structure is simplified, no additional power source is needed to be installed, and the effect similar to sand blasting cleaning can be formed when the dirt enters the tube nest again; the nozzle is used for impacting the wall of the tube array during the process to remove dirt, the steel wire brush is used for impacting during the return stroke to clean the nozzle, the cleaning liquid can also finish one-time washing on the wall of the tube array when flowing downwards along the tube array, the friction force during the movement is utilized, and the unpowered adjustment of the nozzle is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of section I of FIG. 1; FIG. 3 is an enlarged view of a portion II of FIG. 1; FIG. 4 is a top plan view of the nozzle and water tank.
Reference numerals: 1. the device comprises a fixed seat, 2, a through hole, 3, a nut moving seat, 4, a reciprocating screw rod, 5, a water supply pipe, 6, a rotary joint, 7, a water tank, 8, a nozzle, 9, a scraper, 10, a steel wire brush, 11, a hose, 12, a flow dividing valve, 13, a clamping groove, 14, a vertical plate, 15, a second elastic telescopic rod, 16, a clamping column, 17, an upright column, 18, a first elastic telescopic rod, 19 and a connecting rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A cleaning device for a dehydrogenation reactor is shown in figures 1-4 and comprises a fixed seat 1, wherein a plurality of through holes 2 are formed in the fixed seat 1, the through holes 2 are vertically arranged, a nut moving seat 3 is fixedly arranged in each through hole 2, a reciprocating lead screw 4 penetrates through each nut moving seat 3, each reciprocating lead screw 4 is of a tubular structure, a water supply pipe 5 is rotatably arranged in each reciprocating lead screw 4, each reciprocating lead screw 4 is connected with the corresponding water supply pipe 5 through a sealing bearing, each sealing bearing is arranged at the bottom of each reciprocating lead screw 4, the water outlet end of each water supply pipe 5 is connected with a water tank 7 through a rotating joint 6, each water tank 7 is of a cylindrical structure, each water tank 7 is arranged below each reciprocating lead screw 4, each reciprocating lead screw 4 is perpendicular to each water tank 7, a plurality of nozzles 8 are rotatably arranged on the side circumference of each water tank 7, the nozzles 8 are uniformly distributed around the water tank 7, and the included angle between each nozzle 8 and the corresponding water tank 7 is smaller than 90 degrees, so that when water is sprayed out from the nozzles 8, the reaction force can be tangent to the water tank 7, so that the water tank can rotate, a plurality of scrapers 9 are fixedly installed on the water tank 7, the scrapers 9 are uniformly distributed, the distance between the outer ends of the scrapers 9 and the rotary joint 6 is larger than the radius of the water tank 7, the scrapers 9 are all located on the top surface of the water tank 7, the lower parts of the scrapers 9 are all of a tooth-shaped structure, when the tooth-shaped structure is attached to the inner wall of the tube array and rotates, scales remained on the inner wall of the tube array can be broken to be finer, scale layers left by concave parts of the tooth-shaped structure are scraped off at the upper parts of the scrapers 9, a steel wire brush 10 is installed on the bottom surface of the water tank 7 through a first elastic telescopic rod 18, the steel wire brush 10 is of a circular structure, and can be elastically deformed, the radius is larger than the distance between the outer ends of the scrapers 9 and the rotary joint 6, the water tank 7, the first elastic telescopic rod 18 and the steel wire brush 10 are coaxially arranged, the first elastic telescopic rod 18 is perpendicular to the water tank 7 and the steel wire brush 10, the two ends of the first elastic telescopic rod 18 are fixedly connected, the nozzle 8 is respectively connected with the corresponding steel wire brush 10 through a connecting rod 19, the upper end of the connecting rod 19 is hinged with the inner side of the nozzle 8, namely the connecting rod 19 is positioned in an included angle between the nozzle 8 and the water tank 7, the lower end of the connecting rod 19 is hinged with the top surface of the steel wire brush 10, the water inlet end of the water supply pipe 5 is connected with one end of a hose 11, a diverter valve 12 is arranged above the fixed seat 1, the other end of the hose 11 is connected with the outflow end of the diverter valve 12, the hose 11 is connected with the water supply pipe 5 and the diverter valve 12 through a flange plate, the joint can not be loosened due to the water pressure in the hose, the inflow end of the diverter valve 12 is connected with a cleaning liquid source through a pressure pump, namely the inflow end of the diverter valve 12 is connected with the outlet of the pressure pump, the inlet of the pressure pump is connected with the cleaning liquid source, the pressure pump is not shown in the figure, the pressure pump is arranged on the ground during actual use, a pipeline is led out from the bottom of the reactor and is connected with the inlet of the pressure pump, the pipeline is provided with a filtering program, the aperture of the filter screen in the filtering program is larger than 3mm, and the scaling powder smaller than 3mm impacts the column pipe wall of the reactor along with the cleaning liquid. The device is used for cleaning a tubular fixed bed dehydrogenation reactor, the tubular fixed bed dehydrogenation reactor is formed by connecting a plurality of reaction tubes in parallel, the reaction tubes are straight tubes, a fixed seat 1 can be arranged on a scissor-fork type or crank arm type aerial work platform, when the device is used, an upper cover of the reactor is firstly opened, then the fixed seat 1 is positioned above the reactor, then a steel wire brush 10 is aligned to the upper ends of the tubes, then the fixed seat 1 is descended until a nozzle 8 is submerged into the tubes, the length of a reciprocating lead screw 4 corresponds to the length of the tubes, after a user opens a booster pump, cleaning liquid is ejected from the nozzle 8 through a flow dividing valve 12, a hose 11, a water supply pipe 5, a rotary joint 6 and a water tank 7, and the cleaning liquid can break a scale layer through impact force, because the water tank 7 is rotationally connected with the water supply pipe 5, the cleaning liquid can exert reaction force on the nozzle 8 when being ejected, so that the water tank 7 can rotate, the water tank 7 drives the reciprocating screw rod 4 to rotate, at the moment, the screw moving seat 3 is kept still, the reciprocating screw rod 4 moves downwards, so that the steel brush 10, the nozzle 8 and the scraper 9 can move downwards while rotating, the tube wall can be cleaned without dead angles, when the steel brush 10 moves downwards, the steel brush 10 is in an upward friction force due to the contact with the tube wall, the first elastic telescopic rod 18 is in a contraction state, the connecting rod 19 jacks up the nozzle 8 to enable the nozzle 8 to be in a horizontal jet flow, when the steel brush 10 moves upwards, the first elastic telescopic rod 18 is in an extension state due to the downward friction force, the connecting rod 19 pulls the nozzle 8 to rotate downwards to clean scale attached to the steel brush 10 and scale falling on the top surface of the steel brush 10 by the scraper 9, when the reciprocating screw rod 4 moves upwards to an initial position, the position of the fixed seat 1 is changed to enable the steel brush to face towards other tubes, the above process is repeated. The invention cleans the tube array in sequence through three physical cleaning procedures, has no dead angle, and can ensure no residual scale to the maximum extent; the device has the advantages that the device fully utilizes the reaction force of high-pressure jet flow to realize the height change of a cleaning program, simplifies the structure of the device, does not need to additionally install a power source, can form the effect similar to sand blasting cleaning when the dirt dust enters the tube nest again, and cuts off a part of the cleaned dirt to serve as 'sand' compared with the sand blasting cleaning, but greatly reduces the subsequent water treatment difficulty and is not easy to cause dust and noise pollution; the nozzle 8 is used for impacting the wall of the tube array during the process to remove dirt, the steel wire brush 10 is used for impacting during the return stroke to clean the nozzle, the cleaning liquid can also finish one-time washing on the wall of the tube array when flowing downwards along the tube array, and the friction force during the movement is utilized to realize the unpowered adjustment of the nozzle 8.
Particularly, as shown in fig. 2, several clamping grooves 13 are formed in the bottom of the inner wall of the reciprocating screw rod 4, the bottom of the clamping grooves 13 is communicated with the outside, several vertical plates 14 are fixedly mounted on the top surface of the water tank 7, the vertical plates 14 correspond to the clamping grooves 13 one to one, second elastic telescopic rods 15 are fixedly mounted on the inner sides of the vertical plates 14, clamping columns 16 are fixedly mounted on the movable ends of the second elastic telescopic rods 15, and the clamping columns 16 can be located in the corresponding clamping grooves 13 at the same time. The cleaning solution is through 8 spun time exerting reaction force to it of nozzle, and several nozzle 8 acts on water tank 7 simultaneously, can make water tank 7 rotate, and is original, and reciprocal lead screw 4 does not rotate thereupon, promotes the back when the rotational speed of water tank 7, receives centrifugal force effect, and second elasticity telescopic link 15 shrink, until card post 16 get into draw-in groove 13 in, water tank 7 and reciprocal lead screw 4 synchronous revolution. This structure can avoid 7 rotational speeds of water tank when lower, and reciprocal lead screw 4 just produces vertical displacement to the top cleaning force to the tubulation is not enough.
Specifically, the diameter of the nozzle 8 in this embodiment is larger than the pitch of the reciprocating lead screw 4. After the nozzle 8 and the reciprocating screw rod 4 rotate for a circle, the reciprocating screw rod 4 vertically moves for the length of a unit pitch, and the nozzle 8 continuously washes the row pipes without separating from the previous washing track so as to avoid leaving dead angles.
Further, as shown in fig. 1, the fixed seat 1 and the diverter valve 12 according to the present embodiment are connected by a plurality of columns 17. The two ends of the upright post 17 are fixedly connected by welding and the like to ensure that the diverter valve 12 moves synchronously with the fixed seat 1.
Furthermore, the fixing base 1 described in this embodiment is a fan-shaped structure, and the through holes 2 on the fixing base 1 are distributed in a fan shape. Can clean many tubulations at every turn, the clean back of accomplishing of single makes fixing base 1 use the reactor to rotate as the center, and the fan-shaped structure contained angle of angle with fixing base 1 so relapse several times, can accomplish the tubulation cleanness of reactor, and clean efficient.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (5)

1. The utility model provides a dehydrogenation reactor cleaning device, includes fixing base (1), is equipped with several through-hole (2) on fixing base (1), the equal vertical setting of through-hole (2), its characterized in that: the screw moving seat (3) is fixedly installed in the through hole (2), a reciprocating lead screw (4) penetrates through the screw moving seat (3), the reciprocating lead screw (4) is of a tubular structure, a water supply pipe (5) is installed in the reciprocating lead screw (4) in a rotating mode, the water outlet end of the water supply pipe (5) is connected with a water tank (7) through a rotating joint (6), the water tank (7) is located below the reciprocating lead screw (4), the reciprocating lead screw (4) is perpendicular to the water tank (7), a plurality of nozzles (8) are installed on the side of the water tank (7) in a rotating mode, the included angle between each nozzle (8) and the water tank (7) is smaller than 90 degrees, a plurality of scrapers (9) are fixedly installed on the water tank (7), the lower portions of the scrapers (9) are tooth-shaped structures, steel wire brushes (10) are installed on the bottom surface of the water tank (7) through first elastic rods (18), the nozzles (8) are connected with the corresponding steel wire brushes (10) through connecting rods (19), the inboard of articulated nozzle (8) in upper end of connecting rod (19), connecting rod (19) are located the contained angle of nozzle (8) and water tank (7) promptly, the top surface of the articulated steel brush (10) of lower extreme of connecting rod (19), the one end of intake end connecting hose (11) of delivery pipe (5), the top of fixing base (1) is equipped with flow divider (12), the other end of hose (11) all is connected with the outflow end of flow divider (12), the inflow end of flow divider (12) passes through the force (forcing) pump and connects the clean liquid source, draw forth a pipeline connection to the import of force (forcing) pump from the reactor bottom, set up a filtering program on the pipeline, the aperture of filter screen is greater than 3mm among the filtering program, the scale deposit powder that is less than 3mm can be along with the row pipe wall of cleaning solution impact reactor.
2. The dehydrogenation reactor cleaning apparatus of claim 1, wherein: the inner wall bottom of reciprocal lead screw (4) set up several draw-in groove (13), the bottom intercommunication of draw-in groove (13) is external, top surface fixed mounting several riser (14) of water tank (7), riser (14) and draw-in groove (13) one-to-one, the equal fixed mounting second elastic telescopic rod (15) in inboard of riser (14), the equal fixed mounting card post (16) of expansion end of second elastic telescopic rod (15), card post (16) can be located corresponding draw-in groove (13) simultaneously.
3. The dehydrogenation reactor cleaning apparatus of claim 1, wherein: the diameter of the nozzle (8) is larger than the thread pitch of the reciprocating screw rod (4).
4. The dehydrogenation reactor cleaning apparatus of claim 1, wherein: the fixed seat (1) is connected with the flow divider (12) through a plurality of upright posts (17).
5. The dehydrogenation reactor cleaning apparatus of claim 1, wherein: the fixing seat (1) is of a fan-shaped structure, and the through holes (2) in the fixing seat (1) are distributed in a fan shape.
CN202111358316.4A 2021-11-17 2021-11-17 Dehydrogenation reactor cleaning device Active CN113787068B (en)

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Application Number Priority Date Filing Date Title
CN202111358316.4A CN113787068B (en) 2021-11-17 2021-11-17 Dehydrogenation reactor cleaning device

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CN113787068B CN113787068B (en) 2022-03-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115090625A (en) * 2022-08-19 2022-09-23 山东神驰石化有限公司 All-round cleaning device of dehydrogenation reactor

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Publication number Priority date Publication date Assignee Title
SU1313540A1 (en) * 1985-04-25 1987-05-30 Проектно-Конструкторское Бюро Главного Управления Вагонного Хозяйства Мпс Ссср Apparatus for cleaning inner surface of container
SU1697915A1 (en) * 1989-08-11 1991-12-15 Ленинградский инженерно-строительный институт Arrangement for washing vessels
CN208728254U (en) * 2018-06-25 2019-04-12 山东柠檬生化有限公司 A kind of brush tank arrangement
CN209147121U (en) * 2018-10-25 2019-07-23 湖南万盟环境科技有限公司 A kind of device for utilizing waste of boiler
CN210386871U (en) * 2019-02-22 2020-04-24 南京尔顺科技发展有限公司 Push-down squirt
CN211100636U (en) * 2019-09-29 2020-07-28 青岛美亮美工贸有限公司 Driving device of beer barrel cleaning machine
CN112113061A (en) * 2020-09-26 2020-12-22 宜宾学院 Pipeline internal scouring mechanism
CN212585575U (en) * 2020-04-20 2021-02-23 青岛良邦热力工程技术有限公司 Shell-and-tube steam-water heat exchanger
CN113582272A (en) * 2021-08-23 2021-11-02 王伟华 Direct-drinking water purification and supply system with self-cleaning function

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1313540A1 (en) * 1985-04-25 1987-05-30 Проектно-Конструкторское Бюро Главного Управления Вагонного Хозяйства Мпс Ссср Apparatus for cleaning inner surface of container
SU1697915A1 (en) * 1989-08-11 1991-12-15 Ленинградский инженерно-строительный институт Arrangement for washing vessels
CN208728254U (en) * 2018-06-25 2019-04-12 山东柠檬生化有限公司 A kind of brush tank arrangement
CN209147121U (en) * 2018-10-25 2019-07-23 湖南万盟环境科技有限公司 A kind of device for utilizing waste of boiler
CN210386871U (en) * 2019-02-22 2020-04-24 南京尔顺科技发展有限公司 Push-down squirt
CN211100636U (en) * 2019-09-29 2020-07-28 青岛美亮美工贸有限公司 Driving device of beer barrel cleaning machine
CN212585575U (en) * 2020-04-20 2021-02-23 青岛良邦热力工程技术有限公司 Shell-and-tube steam-water heat exchanger
CN112113061A (en) * 2020-09-26 2020-12-22 宜宾学院 Pipeline internal scouring mechanism
CN113582272A (en) * 2021-08-23 2021-11-02 王伟华 Direct-drinking water purification and supply system with self-cleaning function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115090625A (en) * 2022-08-19 2022-09-23 山东神驰石化有限公司 All-round cleaning device of dehydrogenation reactor
CN115090625B (en) * 2022-08-19 2022-11-08 山东神驰石化有限公司 All-round cleaning device of dehydrogenation reactor

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