CN213436105U

CN213436105U - Water-saving energy-reducing device for removing dirt on inner wall and outer wall of steel pipe

Info

Publication number: CN213436105U
Application number: CN202021810145.5U
Authority: CN
Inventors: 袁巧玲; 解玉甫; 常空辉; 王扬渝
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-06-15
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a water-saving energy-reducing device for removing dirt on the inner wall and the outer wall of a steel pipe, which comprises a water storage and supply mechanism, an electric turntable, an inner wall washing auxiliary device, a front end placing mechanism, an electromagnet mechanism, an inner wall washing mechanism and a steel pipe placing table; deposit water supply mechanism and include the storage water tank, high-pressure pump and high-pressure hose, the inner wall washes auxiliary device and includes two support frames and one section permanent magnet, electromagnet mechanism includes two guide rail driving motor, two sharp modules and two electromagnet module, the magnetic field that electromagnet module produced produces and install the great appeal of annular permanent magnet production on high-pressure hose, drive the inner wall and wash annular permanent magnet iron on the auxiliary device and also follow the motion, and then drive the motion of high-pressure hose front end, provide power for high-pressure hose moves in the steel pipe. The utility model discloses can closely, efficient completion is automatic washes long and thin steel pipe inner wall, and whole process automation degree is high, need not the hand labor, avoids the harm to the operation staff health.

Description

Water-saving energy-reducing device for removing dirt on inner wall and outer wall of steel pipe

Technical Field

The utility model relates to a steel pipe inner wall washes the field, and more specifically the theory that says so especially relates to a diameter is not big, washes the water conservation of steel pipe inner wall fast and subtract can the steel pipe inner and outer wall dirt remove device.

Background

Because the steel pipe has good sealing performance and high efficiency in transportation media (solid, liquid and gas), the steel pipe is applied to various fields such as medicine, food, energy, daily life and the like. After the steel pipe is formed and treated by cold drawing, deoiling, annealing and the like, a large amount of oxide scales and dirt are arranged on the inner surface of the steel pipe, the steel pipe is required to be placed in an acid tank to be soaked for 6-10 hours according to the thickness of the oxide scales and dirt on the surface of the steel pipe, most of the dirt and oxide scales on the inner surface of the steel pipe are dissolved after soaking, however, the thinner oxide scales and dirt are still adhered to the surface of the steel pipe, so that a device and a method for washing the inner surface of the steel pipe are added after the steel pipe is soaked in the acid tank, the smoothness of the inner surface of the steel pipe is ensured, otherwise, besides the consumption of excessive water resources and other energy sources, the damage speed of the steel pipe is accelerated in the later use process of the steel pipe, the efficiency of conveying media of the steel pipe is.

For the steel pipe with the inner diameter, a better steel pipe inner wall flushing device is not available at present, domestic enterprises adopt a method for flushing the steel pipe with the inner diameter within the range by using a high-pressure high-flow long-time (the smaller the inner diameter is, the longer the time is used), and the inner wall of the steel pipe is flushed by using a manual handheld spray head, and if the operation is slightly improper during the cleaning, the water jet with larger kinetic energy can injure operators. Meanwhile, after the steel pipe is taken out of the acid tank, a small amount of acid liquor exists on the surface of the steel pipe, the acid liquor is volatile to form acid mist, the surrounding environment becomes acidic, the washing device is difficult, the diameter of the steel pipe is not large, the washing is uneven, the quality is difficult to control, the efficiency is low, at present, no proper automatic equipment for washing the inner wall of the steel pipe with the inner diameter exists, and therefore the device for washing the inner wall of the steel pipe with the inner diameter urgently needed is needed, and the efficiency and the speed of washing the inner wall of the steel pipe are improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the dirt and the cinder of the adhesion of the inner wall of the steel pipe of 50-100mm of current diameter adopt artifical handheld shower nozzle to wash the energy resource consumption that leads to very big, seriously waste water resource and to injure the great harm to operating personnel health, provide water conservation and subtract ability steel pipe inside and outside wall dirt remove device, can closely effectively get rid of dirt and cinder by the steel pipe, reduce pressure, flow when wasing to save water resource and electric energy.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the device for removing dirt on the inner wall and the outer wall of the water-saving energy-reducing steel pipe comprises a water storage and supply mechanism, an electric rotary table, an inner wall washing auxiliary device, a front end placing mechanism, an electromagnet mechanism, an inner wall washing mechanism and a steel pipe placing table;

the water storage and supply mechanism comprises a water storage tank, a high-pressure pump and a high-pressure hose, wherein the high-pressure pump is arranged in the water storage tank, cleaning liquid specially used for washing the steel pipe is filled in the water storage tank, and an output port of the high-pressure pump is connected with one end of the high-pressure hose; the high-pressure hose is wound on the electric turntable, the electric turntable is directly driven by the turntable driving motor, the high-pressure hose is collected when the turntable driving motor controls the electric turntable to rotate forwards, and the high-pressure hose is released when the turntable driving motor controls the electric turntable to rotate backwards; the inner wall flushing mechanism is arranged at the other end of the high-pressure hose;

the inner wall washing auxiliary device comprises two support frames and a section of permanent magnet, the inner wall washing auxiliary device is installed at the water outlet end of the high-pressure hose, a small distance is reserved between the inner wall washing auxiliary device and the water outlet end of the high-pressure hose, the small distance is used for connecting the water outlet end of the high-pressure hose with a spray head, the permanent magnet is an annular permanent magnet, and a layer of isolation film is wrapped outside the annular permanent magnet; the two support frames and the permanent magnet are sleeved on the high-pressure hose, and the permanent magnet is arranged between the two support frames;

the front end placing mechanism is made of plastic materials, is arranged in an annular shape and is sleeved at one end of the steel pipe, the front end placing mechanism and the steel pipe are coaxially arranged, and the inner wall washing auxiliary device penetrates through the front end placing mechanism to enter the steel pipe;

the electromagnet mechanism comprises two guide rail driving motors, two linear modules and two electromagnet modules, wherein the guide rails of the two linear modules are arranged in parallel to the axial lead of the steel pipe, the two linear modules are fixed on the steel pipe placing table, one end of each linear module is connected with one guide rail driving motor, one electromagnet module is arranged on a sliding block of each linear module, and when the guide rail driving motors drive the sliding blocks on the linear modules to move along the guide rails, the electromagnet modules move linearly along the sliding blocks of the linear modules along the sliding blocks;

when the circuit of electromagnet module communicates, can produce powerful magnetic field, the magnetic field that electromagnet module produced produces great appeal with the annular permanent magnet of installing on the high-pressure hose, when electromagnet module moves on sharp module along with the slider, the annular permanent magnet iron on the inner wall washing auxiliary device also follows the motion, and then drives the motion of high-pressure hose front end, provides power for the high-pressure hose moves in the steel pipe.

Furthermore, the inner wall washing mechanism is an autorotation type spray head, the autorotation type spray head comprises an external shaft sleeve, a transition pipe, a gasket, a first bearing retainer ring, a sealing gasket, a first cylindrical roller bearing, a centrifugal speed limiting mechanism, a second cylindrical roller bearing, a rotary connecting shaft, a speed limiting cover, a second bearing retainer ring, a front end spray head and a liquid jet hole, the external shaft sleeve, the transition pipe and the rotary connecting shaft are all pipelines, holes capable of penetrating liquid are formed in the external shaft sleeve, one end of the transition pipe is embedded into the external shaft sleeve, the gasket is arranged between the external shaft sleeve and the transition pipe, and the other end of the transition pipe is connected with the rear end of the; the external shaft sleeve, the transition pipe and the through hole in the rotary connecting shaft, the gasket and the sealing gasket form a sealed through hole which can be communicated by liquid; the centrifugal speed limiting mechanism is arranged on the rotating connecting shaft, is arranged between the first cylindrical roller bearing and the second cylindrical roller bearing, and is arranged in the sequence of the first cylindrical roller bearing, the centrifugal speed limiting mechanism and the second cylindrical roller bearing; the speed-limiting cover is sleeved outside the first cylindrical roller bearing and the second cylindrical roller bearing, the outer rings of the first cylindrical roller bearing and the second cylindrical roller bearing are attached to the inner wall surface of the speed-limiting cover, the right side surface of the second cylindrical roller bearing is separated from one inner side surface of the speed-limiting cover by a second bearing retainer ring, the positioning of the centrifugal speed-limiting mechanism is completed by the second bearing retainer ring and the rotating connecting shaft together, and a first bearing retainer ring is arranged on one side of the first cylindrical roller bearing, which is far away from the second cylindrical roller bearing; the front end of the external shaft sleeve is connected with the outside of the speed limiting cover through threads, and a protruding block which is used for abutting against the first bearing retainer ring is arranged in the external shaft sleeve.

Furthermore, a centrifugal speed limiting mechanism is arranged in the self-rotating self-advancing nozzle, a small gap is formed between the centrifugal speed limiting mechanism and the speed limiting cover, the centrifugal speed limiting mechanism comprises 2 centrifugal blocks, 2 external connecting sleeves, 2 springs and a connecting ring, the 2 centrifugal blocks are arranged on the connecting ring, the 2 centrifugal blocks are covered by the 2 external connecting sleeves, and the 2 external connecting sleeves are connected through the springs. If there is not centrifugal speed limiting mechanism, the rotation is extremely fast from advancing formula shower nozzle at the rotational speed of during operation, can produce to whistle even, produces the shake that the frequency is extremely fast, can cause scotch or fish tail to the steel pipe inner wall, leaves the mar at the steel pipe inner wall, reduces the quality of steel pipe. The centrifugal speed limiting mechanism is connected with the rotating connecting shaft in an interference mode, and the centrifugal speed limiting mechanism can rotate along with the rotating connecting shaft when working, so that centrifugal force is generated, an outer connecting sleeve in the centrifugal speed limiting mechanism and the speed limiting cover generate friction, the rotating speed of the autorotation nozzle is reduced, and the autorotation nozzle can quickly reach a stable state in a rotating mode.

Furthermore, threaded connection is passed through with the one end of swivelling joint axle to the front end shower nozzle, and the front end shower nozzle is detachable shower nozzle, can change different front end shower nozzles according to the steel pipe of different pipe diameters and carry out work.

Furthermore, the number of the liquid jet holes on the front-end sprayer is set to be 4, each liquid jet hole is obliquely arranged backwards, the forward direction of the self-rotation self-advancing sprayer is assumed to be the positive direction, the included angle between each liquid jet hole and the axis is 120 degrees, under the working condition, flushing liquid is jetted out from the liquid jet holes, and the generated reaction force can provide power for the sprayer and the forward movement of the high-pressure rubber pipe; the ground is used as a reference plane, the included angle between the radial normal line perpendicular to the reference plane and the liquid spraying hole is 30 degrees, and under the working condition, the torque generated by flushing liquid on the head pulling spray head of the self-rotation self-advancing spray head can automatically rotate.

Furthermore, 2 electromagnet modules of the electromagnet mechanism are placed at the upper end and the lower end of the front end placing mechanism, the two guide rail driving motors are fixed on the steel pipe placing table and are arranged close to the front end placing mechanism, and output shafts of the guide rail driving motors are connected with input ends of the linear modules. The 2 straight line modules are respectively fixed at the upper end and the lower end of the front end placing mechanism, one straight line module is fixed above the front end placing mechanism, the movable sliding block on the straight line module is connected with one electromagnet module, the other straight line module is fixed below the front end placing mechanism, and the movable sliding block on the straight line module is connected with the other electromagnet module.

Furthermore, the isolation film is used for conveniently maintaining the annular permanent magnet after the annular permanent magnet attracts impurities, the service life of the isolation film is prolonged, the annular permanent magnet and the support frames are arranged in a support frame-annular permanent magnet-support frame mode, the two support frames are used for preventing the inner wall of the steel pipe from being scratched due to vibration of the spray head caused by overlarge pressure in the washing process, and meanwhile, the support frames can improve the trafficability of the high-pressure hose on the inner wall of the steel pipe.

Furthermore, the support frame is composed of two identical retainers, four rollable plastic balls and two rivets, wherein the four rollable plastic balls are arranged on the two retainer supports, and the two retainers are connected through the two rivets. 4 rollable plastic balls are respectively placed on the retainer, the retainer is covered by the other retainer and aligned with the pin holes on the two retainers, the support frames are connected in a riveting mode after the positions of the 2 retainers are determined, and the support frames are all made of PA46 materials except 2 rivets.

Furthermore, the electromagnet module comprises an electromagnet and a control circuit for controlling the electromagnet, and an iron core of the electromagnet is made of soft iron. The iron core of the electromagnet needs to be made of soft iron, and cannot be made of steel, otherwise, once the steel is magnetized, the steel can keep magnetism for a long time and cannot be demagnetized, and the strength of the magnetism of the steel cannot be controlled by the magnitude of current, so that the due characteristics of the electromagnet are lost, and the auxiliary traction effect cannot be achieved outside the steel pipe. The larger the coil of the electromagnet is, the more the number of turns is, the larger the coil is, the more the number of turns is

Furthermore, the size of the support frame is changed according to the size of the inner diameter of the steel pipe needing to be washed. The support frame has the size of different external diameters, and the size that has different external diameters can be changed according to the change that needs washed the steel pipe internal diameter to the whole size of support frame, and the plastic ball that can roll on the support frame also can carry out corresponding change.

Furthermore, the annular permanent magnet is increased according to the increase of the inner diameter of the flushing steel pipe. Therefore, the acting force between the annular permanent magnet and the electromagnet can be increased, and the electromagnet mechanism has a better traction effect.

The utility model discloses a theory of operation does: when the automatic self-advancing type steel pipe flushing device works, due to the fact that the recoil force of liquid sprayed out of a nozzle and the traction force of the electromagnet mechanism are the same, the liquid sprayed out of the front-end nozzle in the automatic self-advancing type steel pipe flushing device is enabled to be at the axial angle and the radial angle, rotation and advancing power of the automatic self-advancing type steel pipe is achieved, and the automatic self-advancing type steel pipe flushing device is enabled to enter the inside of the steel pipe. After the rotation self-advancing type spray head enters the steel pipe, the distance between liquid ejected from the liquid ejection hole and the inner wall of the steel pipe can be greatly reduced, the inner wall of the steel pipe can be thoroughly washed in a short distance by using smaller pressure and flow, and the self-advancing type spray head is a premise and a foundation for saving water and reducing energy.

The positive and negative rotation of the motor in the electromagnet mechanism controls the linear reciprocating movement of the moving block on the linear module, when the rotation self-entering nozzle enters, the magnetic field generated by the electromagnet can provide partial power for the rotation self-entering nozzle, and after the washing is finished, the motor in the electromagnet mechanism is controlled to rotate reversely, the positive rotation of the electric rotating disc is controlled to collect the high-pressure hose, the rotation self-entering nozzle and the inner wall washing auxiliary device are retracted, and the inner wall washing mechanism is stopped at the front end placing mechanism.

The beneficial effects of the utility model reside in that:

1. the utility model discloses can closely, efficient completion is automatic washes long and thin steel pipe inner wall, and whole process automation degree is high, need not the hand labor, avoids the harm to the operation staff health.

2. The utility model discloses use the supplementary rotation of electromagnet mechanism to advance from advancing the shower nozzle for washing speed greatly improves the washing quality, and effective water economy resource reduces the total energy consumption when washing.

3. The utility model discloses at the during operation, the rotation is from advancing the shower nozzle and getting into the steel pipe inner wall and washing, because the steel pipe internal diameter is less than 120mm, make the rotation from the liquid jet orifice of arranging on the formula shower nozzle after the angle is confirmed, become very little with the distance of steel pipe inner wall, when washing the steel pipe that the internal diameter is 100mm, the water jet jets out the steel pipe inner wall distance from the liquid jet orifice and is about 60mm, flow and the pressure that uses when can sparingly washing greatly, can effectively practice thrift the water consumption when washing, improve the efficiency of washing and reduce the total energy consumption who washes.

4. The utility model discloses the parameter of high-pressure pump is adjusted to the accessible: pressure and flow adapt to the steel pipe of different internal diameters, use more suitable pressure and flow and rotation to advance the speed that the shower nozzle got into in the steel pipe certainly and make to wash rationalize more, improve the flushing efficiency, avoid causing the mar to the steel pipe inner wall.

5. The utility model discloses the inner wall washes auxiliary device and front end shower nozzle and is can dismantle, removable spare part, demand when conveniently satisfying different internal diameter steel pipes and washing.

6. The utility model discloses can be through embedded control system control high-pressure pump, electric turntable and electromagnet mechanism, with the control integration of 3 mechanisms to an operation panel, can realize the full-thickness and the full automatization work that the steel pipe inner wall washed, can greatly practice thrift and wash the time spent, improve the convenience of washing.

7. The utility model discloses a support frame in the inner wall washes auxiliary device is near the shower nozzle is advanced from the rotation for the rotation is in the steel pipe but can not the steel pipe inner wall produce the contact from advancing the shower nozzle, and the plastic ball that can roll on the support frame can roll simultaneously, plays the effect of support and collision prevention in the flushing process.

8. The utility model discloses the great one end of well front end placement machine diameter is the fillet, and the internal diameter of one end is slightly bigger than the steel pipe internal diameter in addition, and coincides basically with the one end of steel pipe, when washing, can protect high-pressure hose can not by the fish tail.

9. The utility model discloses an electromagnet mechanism guarantees that the rotation can be at the uniform velocity stable gos forward inside the steel pipe from advancing the shower nozzle in the washing process, under electromagnet mechanism and inner wall wash auxiliary device's combined action, the rotation is in steel pipe axis department basically from advancing the shower nozzle.

10. The utility model discloses be provided with centrifugal speed-limiting mechanism in the rotation advances the shower nozzle, centrifugal speed-limiting mechanism is connected for the interference mode with the swivelling joint axle, guarantees to follow swivelling joint axle at during operation centrifugal speed-limiting mechanism and rotates together to produce centrifugal force, make the outer adapter sleeve in the centrifugal speed-limiting mechanism produce the friction with the speed-limiting cover, thereby reduce the rotation from the rotation rate of advancing the shower nozzle, make the rotation reach stable state fast at the rotation type from advancing the shower nozzle.

Drawings

FIG. 1 is a schematic view of the overall structure of the device for removing dirt on the inner and outer walls of the water-saving and energy-reducing steel pipe.

Fig. 2 is a front view of the steel pipe placing table, the electromagnet mechanism and the front end placing mechanism of the utility model.

Fig. 3 is a left side view of the steel pipe placing table, the electromagnet mechanism and the front end placing mechanism of the utility model.

Fig. 4 is a front view of the support frame of the present invention.

Fig. 5 is a left side view of the support frame of the present invention.

Fig. 6 is a front view of the cage of the present invention.

Fig. 7 is a left side view of the retainer of the present invention.

Fig. 8 is a sectional view of the self-advancing nozzle of the present invention.

Fig. 9 is a front view of the centrifugal speed limiting mechanism of the present invention.

Fig. 10 is a left side view of the centrifugal speed limiting mechanism of the present invention.

Fig. 11 is a sectional view of the front end head of the self-propelling sprinkler of the present invention.

Fig. 12 is a right side view of the front end head of the self-rotation self-advancing nozzle of the present invention.

In the figure, 1-a water storage tank, 2-a high-pressure pump, 3-a high-pressure hose, 4-an electric turntable, 5-a support frame, 6-an annular permanent magnet, 7-a self-rotation self-feeding spray head, 8-a guide rail driving motor, 9-a front end placing mechanism, 10-an electromagnet module, 11-a steel pipe to be washed, 12-a linear module, 13-a steel pipe placing table, 14-a linear module support table, 51-a rollable plastic ball, 52-a support frame fixing pin, 53-a retainer, 61-a spring, 62-a centrifugal block, 63-a connecting ring, 64-an external connecting sleeve, 70-an external connecting shaft sleeve, 71-a transition pipe, 72-a gasket, 73-a first bearing retainer ring, 74-a sealing gasket, 75-a first cylindrical bearing, a first, 76-a centrifugal speed limiting mechanism, 77-a speed limiting cover, 78-a second cylindrical roller bearing, 79-a second bearing retainer ring, 80-a front end spray head, 81-a rotary connecting shaft and 82-a liquid spraying hole.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in figures 1-12, the water-saving and energy-reducing device for removing dirt on the inner wall and the outer wall of the steel pipe comprises a water storage and supply mechanism, a steel pipe placing table 13, an electric rotary table 4, a front end placing mechanism 9, an inner wall washing auxiliary device, an electromagnet mechanism and an inner wall washing mechanism, wherein the water storage and supply mechanism comprises a water storage tank 1, a high-pressure pump 2 and a high-pressure hose 3, the high-pressure pump 2 is arranged in the water storage tank 1 filled with washing liquid, and an output port of the high-pressure pump 2 is connected with one end of. The washing liquid that storage water tank 1 stored is the washing liquid that is used for washing the steel pipe specially, but according to the steel pipe of different grade type or other pipe fitting materials probably adopt different washing liquids, selects here according to actual need, uses the clear water under the general condition can.

The electric turntable 4 wound by the high-pressure hoses is provided with an independent turntable driving motor which can control the forward rotation and the reverse rotation of the electric turntable, the high-pressure hoses are collected by the forward rotation and released by the reverse rotation, and the high-pressure hoses 3 are wound on the electric turntable 4 in a single row.

The inner wall washing auxiliary device comprises 2 support frames 5 and annular permanent magnets 6, the arrangement mode of the 2 support frames 5 and the annular permanent magnets 6 is that the support frames 5 are annular permanent magnets 6 and the support frames 5 are arranged, and the outer diameter of each annular permanent magnet 6 is slightly smaller than that of each support frame 5; the support frame 5 comprises 4 rollable plastic balls 51, 2 support frame fixing pins 52, 2 retainers 53 and 2 support frame fixing pins 52, and the assembly mode of the support frame 5 is as follows: firstly, 1 retainer 53 is placed on a flat plate, and the surface of the retainer 53 with a recess is upward; then 4 rollable plastic balls 51 are placed in corresponding positions; next, after another retainer 53 is placed at a corresponding position, 2 retainer pins 52 are respectively installed in the corresponding pin holes.

The sizes of the support frame 5 and the annular magnet 6 of the inner wall washing auxiliary device can be changed according to the inner diameter of the steel pipe to be washed.

The front end placing mechanism 9 is made of plastic materials and used for placing an inner wall washing auxiliary device, the annular permanent magnet 6 and the 2 support frames 5 are mainly placed in the front end washing mechanism device 9, the front end placing mechanism 9 is coaxial with a steel pipe 11 needing to be washed, and one end of the front end placing mechanism 9 is adjacent to one end of the steel pipe 11.

The electromagnet mechanism comprises 2 guide rail driving motors 8, 2 sets of electromagnets and circuits 10, 2 linear modules 12 and linear module supporting tables, wherein the 2 guide rail driving motors 8 are respectively arranged at one ends of the linear modules 12, the 2 guide rail driving motors 8 are arranged at the same end, the 2 sets of electromagnets and circuits are connected with moving blocks on the linear modules, when the guide rail driving motors 8 rotate forwards, the moving blocks on the linear modules 12 and the connected electromagnets and circuits 10 move from left to right, when the guide rail driving motors 8 rotate backwards, the moving blocks on the linear modules 12 and the connected electromagnets and circuits 10 move from right to left, wherein the linear modules 8 below are fixedly installed on a connecting rod of the steel pipe placing table platform 13, namely the linear module supporting tables 14. When the linear module works, the circuits of 2 sets of electromagnets and the circuit 10 are communicated, the electromagnets generate strong magnetic fields, then 2 guide rail driving motors 8 are started simultaneously to control the moving blocks on the two linear modules to move simultaneously, and when the moving blocks move, the electromagnets connected with the moving blocks and the circuit 10 move simultaneously.

The inner wall flushing mechanism is mainly a self-rotating self-advancing nozzle 7 and comprises an external shaft sleeve 70, a transition pipe 71, a gasket 72, a first bearing retainer ring 73, a sealing gasket 74, a first cylindrical roller bearing 75, a centrifugal speed limiting mechanism 76, a speed limiting cover 77, a second cylindrical roller bearing 78, a second bearing retainer ring 79, a front-end nozzle 80, a rotary connecting shaft 81 and a liquid injection hole 82, wherein the external shaft sleeve 70, the transition pipe 71 and the rotary connecting shaft 81 are all pipelines, holes capable of penetrating liquid are formed in the internal parts of the external shaft sleeve 70, one end of the transition pipe 71 is embedded into the external shaft sleeve 70, the gasket 72 is arranged between the external shaft sleeve 70 and the rotary connecting shaft 81, and the other end of the transition pipe 71 is connected with the; the external shaft sleeve 70, the transition pipe 71, the through hole in the rotary connecting shaft 81, the gasket 72 and the sealing gasket 74 form a sealed through hole which can be communicated by liquid; the first cylindrical roller bearing 75 and the second cylindrical roller bearing 78 are arranged on a rotary connecting shaft 81, the front end of the rotary connecting shaft 81 is connected with a front end spray head 80, the centrifugal speed limiting mechanism 76 is arranged on the rotary connecting shaft 81, the installation position of the centrifugal speed limiting mechanism is arranged between the first cylindrical roller bearing 75 and the second cylindrical roller bearing 78, and the installation sequence is the first cylindrical roller bearing 75-the centrifugal speed limiting mechanism 76-the second cylindrical roller bearing 78; the speed limiting cover 77 is sleeved outside the first cylindrical roller bearing 75 and the second cylindrical roller bearing 78, the outer rings of the first cylindrical roller bearing 75 and the second cylindrical roller bearing 78 are attached to the inner wall surface of the speed limiting cover 77, the right side surface of the second cylindrical roller bearing 78 and one inner side surface of the speed limiting cover 77 are separated by a second bearing retainer ring 79, the positioning of the second cylindrical roller bearing is completed by the centrifugal speed limiting mechanism 76, the bearing retainer ring 79 and the rotating connecting shaft 81 together, and the first bearing retainer ring 73 is arranged on one side of the first cylindrical roller bearing 75, which is far away from the second cylindrical roller bearing 78; the front end of the external shaft sleeve 70 is connected with the outside of the speed limiting cover 77 by screw threads, and a convex block which is used for abutting against the first bearing retainer ring 73 is arranged in the external shaft sleeve 70.

A centrifugal speed-limiting mechanism 76 is arranged in the self-rotating self-advancing nozzle 8, a small gap is formed between the centrifugal speed-limiting mechanism 76 and a speed-limiting cover 77, the centrifugal speed-limiting mechanism 76 mainly comprises 2 centrifugal blocks 62, 2 external sleeves 64, 2 spring assemblies 61 and a connecting ring 63, the 2 centrifugal blocks 62 are arranged on the connecting ring 63, the 2 centrifugal blocks 62 are coated by the 2 external sleeves 64, and the 2 external sleeves 64 are connected through the 2 springs 61; if the centrifugal speed limiting mechanism 76 is not arranged, the rotation speed of the rotation self-advancing type spray head 8 during working is extremely fast, even squealing can be generated, the vibration with extremely fast frequency can cause scratching or scratching to the inner wall of the steel pipe 11, scratches are left on the inner wall of the steel pipe, and the quality of the steel pipe is reduced. The centrifugal speed limiting mechanism 76 is connected with the rotating connecting shaft 81 in an interference mode, and the centrifugal speed limiting mechanism 76 can rotate along with the rotating connecting shaft 81 when working, so that centrifugal force is generated, 2 centrifugal blocks 62 can pull 2 springs 61 to extend due to centrifugal action, 2 centrifugal blocks 62 and 2 external sleeves 64 move outwards, so that the external sleeves 64 in the centrifugal speed limiting machine 76 and the speed limiting cover 77 generate friction, the rotating speed of the autorotation nozzle 7 is reduced, and the autorotation nozzle 7 can quickly reach a stable state when rotating.

The front end sprayer 80 is connected with one end of the rotary connecting shaft 81 through threads, the front end sprayer 80 is a detachable sprayer, different front end sprayers 80 can be replaced to work according to steel pipes with different pipe diameters, and water resource saving and small energy consumption in the process of washing the steel pipes are facilitated. The number of the liquid ejection holes 82 on the front end nozzle 80 is set to 4, each liquid ejection hole 82 is set obliquely backward, and assuming that the forward direction of the self-rotation self-advancing nozzle 7 is the positive direction, the included angle between the liquid ejection hole 82 and the axis is 120 °.

When the self-advancing type spray head works, the front end placing mechanism 9 and the steel pipe 11 are in a coaxial state, 2 supporting frames 5 and the annular permanent magnet 6 are placed in the front end placing mechanism 9, when the self-advancing type spray head works, a circuit of the electromagnet module 10 is firstly opened, so that an electromagnet generates a strong magnetic field, strong attraction is generated between the electromagnet and the annular permanent magnet 6, then the high-pressure pump 2, the electric rotating disc 4 and the 2 guide rail driving motors 8 are simultaneously opened, the electric rotating disc 4 reversely rotates to release the high-pressure hose 3, meanwhile, the 2 guide rail driving motors 8 positively rotate, after a slide block on a linear module, the electromagnet module 10 and the high-pressure pump 2 are started, the recoil force of liquid sprayed by the front end spray head 80 in the self-advancing type spray head 7 and the traction force of the electromagnet module 10 are simultaneously, the liquid sprayed by the front end spray head 80 in the self-advancing type spray head 7 has certain angles with, the self-rotating self-advancing nozzle 7 enters the steel pipe 11 to comprehensively flush the inner wall of the steel pipe 11 in a close range, which is the premise and basis for saving water and reducing energy.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. Water conservation subtracts ability of job practice steel pipe inside and outside wall dirt remove device, its characterized in that: comprises a water storage and supply mechanism, an electric rotary table (4), an inner wall washing auxiliary device, a front end placing mechanism (9), an electromagnet mechanism, an inner wall washing mechanism and a steel pipe placing table (13);

the water storage and supply mechanism comprises a water storage tank (1), a high-pressure pump (2) and a high-pressure hose (3), the high-pressure pump (2) is arranged in the water storage tank (1), cleaning liquid specially used for washing the steel pipe (11) is filled in the water storage tank (1), and an output port of the high-pressure pump (2) is connected with one end of the high-pressure hose (3); the high-pressure hose (3) is wound on the electric turntable (4), the electric turntable (4) is directly driven by a turntable driving motor, the high-pressure hose (3) is collected when the turntable driving motor controls the electric turntable (4) to rotate forwards, and the high-pressure hose (3) is released when the turntable driving motor controls the electric turntable (4) to rotate backwards; the inner wall flushing mechanism is arranged at the other end of the high-pressure hose (3);

the inner wall washing auxiliary device comprises two support frames (5) and a section of permanent magnet, the inner wall washing auxiliary device is installed at the water outlet end of the high-pressure hose (3), a small distance is reserved between the inner wall washing auxiliary device and the water outlet end of the high-pressure hose (3), the small distance is used for connecting the water outlet end of the high-pressure hose (3) with a spray head, the permanent magnet is an annular permanent magnet (6), and a layer of isolation film wraps the outside of the annular permanent magnet (6); the two support frames (5) and the permanent magnet are sleeved on the high-pressure hose (3), and the permanent magnet is arranged between the two support frames (5);

the front end placing mechanism (9) is made of a plastic material, the front end placing mechanism (9) is arranged in an annular shape and sleeved at one end of the steel pipe (11), the front end placing mechanism (9) and the steel pipe (11) are coaxially arranged, and the inner wall washing auxiliary device penetrates through the front end placing mechanism (9) to enter the steel pipe (11);

the electromagnet mechanism comprises two guide rail driving motors (8), two linear modules (12) and two electromagnet modules (10), wherein the guide rails of the two linear modules (12) are arranged in parallel to the axial lead of a steel pipe (11), the two linear modules (12) are fixed on a steel pipe placing table (13), one end of each linear module (12) is connected with one guide rail driving motor (8), one electromagnet module (10) is arranged on a sliding block of each linear module (12), and when a sliding block on each guide rail driving motor (8) driving linear module (12) moves along the guide rails, the electromagnet module (10) moves linearly along the sliding block of the linear module (12) along with the sliding block;

when the circuit of electromagnet module (10) communicates, can produce powerful magnetic field, the magnetic field that electromagnet module (10) produced produces great appeal with the annular permanent magnet of installing on high-pressure hose (3), when electromagnet module (10) moves on sharp module (12) along with the slider, the inner wall washes the annular permanent magnet iron on the auxiliary device and also follows the motion, and then drives the motion of high-pressure hose (3) front end, provides power for high-pressure hose (3) moves in steel pipe (11).

2. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 1, characterized in that: the inner wall washing mechanism is a self-rotation self-advancing type spray head (7), the self-rotation self-advancing type spray head (7) comprises an external shaft sleeve (70), a transition pipe (71), a gasket (72), a first bearing retainer ring (73), a sealing gasket (74), a first cylindrical roller bearing (75), a centrifugal speed limiting mechanism (76), a second cylindrical roller bearing (78), a rotary connecting shaft (81), a speed limiting cover (77), a second bearing retainer ring (79), a front end spray head (80) and a liquid jet hole (82), the external shaft sleeve (70), the transition pipe (71) and the rotary connecting shaft (81) are all pipelines, a hole capable of penetrating liquid is formed in the internal part of the external shaft sleeve, one end of the transition pipe (71) is embedded into the external shaft sleeve (70), a gasket (72) is arranged between the external shaft sleeve and the transition pipe, and the other end of the transition pipe (71) is connected with the rear end of the rotary connecting shaft (81) through a sealing gasket (74); the external shaft sleeve (70), the transition pipe (71), the through hole in the rotary connecting shaft (81), the gasket (72) and the sealing gasket (74) jointly form a sealed through hole through which liquid can flow; the first cylindrical roller bearing (75), the second cylindrical roller bearing (78) and the rotating connecting shaft (81) are arranged on the rotating connecting shaft (81), the front end of the rotating connecting shaft (81) is connected with a front end spray head (80), the centrifugal speed limiting mechanism (76) is arranged on the rotating connecting shaft (81), the installation position of the centrifugal speed limiting mechanism is between the first cylindrical roller bearing (75) and the second cylindrical roller bearing (78), and the installation sequence is the first cylindrical roller bearing (75), the centrifugal speed limiting mechanism (76) and the second cylindrical roller bearing (78); the speed limiting cover (77) is sleeved outside the first cylindrical roller bearing (75) and the second cylindrical roller bearing (78), the outer rings of the first cylindrical roller bearing (75) and the second cylindrical roller bearing (78) are attached to the inner wall surface of the speed limiting cover (77), the right side surface of the second cylindrical roller bearing (78) is separated from one inner side surface of the speed limiting cover (77) by a second bearing retainer ring (79), the centrifugal speed limiting mechanism (76), the second bearing retainer ring (79) and the rotating connecting shaft (81) are positioned to jointly complete the positioning, and a first bearing retainer ring (73) is arranged on one side, away from the second cylindrical roller bearing (78), of the first cylindrical roller bearing (75); the front end of the external shaft sleeve (70) is connected with the outside of the speed limiting cover (77) by threads, and a convex block which is used for abutting against the first bearing retainer ring (73) is arranged in the external shaft sleeve (70).

3. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 2, characterized in that: a centrifugal speed limiting mechanism (76) is arranged in the self-rotating self-advancing nozzle (7), a small gap is formed between the centrifugal speed limiting mechanism (76) and a speed limiting cover (77), the centrifugal speed limiting mechanism (76) comprises 2 centrifugal blocks (62), 2 outer connecting sleeves (64), 2 springs (61) and a connecting ring (63), the 2 centrifugal blocks (62) are installed on the connecting ring (63), the 2 centrifugal blocks (62) are coated by the 2 outer connecting sleeves (64), and the 2 outer connecting sleeves (64) are connected through the springs (61).

4. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 2, characterized in that: the front end sprayer (80) is connected with one end of the rotary connecting shaft (81) through threads, the front end sprayer (80) is a detachable sprayer, and different front end sprayers (80) can be replaced to work according to steel pipes (11) with different pipe diameters.

5. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 2, characterized in that: the liquid jet holes (82) on the front end nozzle (80) are circumferentially distributed into 4, each liquid jet hole (82) is obliquely and backwards arranged, the advancing direction of the self-rotation self-advancing nozzle (7) is assumed to be the positive direction, and the included angle between each liquid jet hole (82) and the axis is 120 degrees.

6. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 5, characterized in that: 2 electromagnet modules (10) of the electromagnet mechanism are placed at the upper end and the lower end of the front end placing mechanism (9), two guide rail driving motors (8) are fixed on the steel pipe placing table (13), the two guide rail driving motors (8) are arranged close to the front end placing mechanism (9), and output shafts of the guide rail driving motors (8) are connected with input ends of the linear modules (12).

7. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 1, characterized in that: the support frame (5) is composed of two identical holders (53), four rollable plastic balls (51) and two rivets, the four rollable plastic balls (51) are arranged on the two holders (53) and connected through the two rivets.

8. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 1, characterized in that: the electromagnet module (10) comprises an electromagnet and a control circuit for controlling the electromagnet, and an iron core of the electromagnet is made of soft iron.

9. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 1, characterized in that: the size of the support frame (5) is changed according to the size of the inner diameter of the flushing steel pipe (11) required.

10. The water-saving energy-reducing steel pipe inner and outer wall dirt removing device according to claim 1, characterized in that: the annular permanent magnet (6) is increased according to the increase of the inner diameter of the flushing steel pipe (11) required.