CN212335311U - Acid pickling passivation equipment for stainless steel composite welded pipe - Google Patents

Abstract

The utility model discloses a compound welded tube pickling passivation equipment of stainless steel, including compound welded tube and water conservancy diversion axle, the both sides of compound welded tube all are provided with seals the stopper that rises, and the both ends of water conservancy diversion axle surface all through bearing swing joint in the internal surface that seals the stopper that rises, the equal fixedly connected with stirring leaf rotating stand in both sides of water conservancy diversion axle surface. The utility model discloses a work of the pump body drives the inside pickling solution of acidizing fluid storage tank and passes through pickling pipeline and total flow pipe flow to guide shaft, because guide shaft's surface is provided with the water conservancy diversion hole, make pickling solution get into the sealed intracavity of compound welded tube, when pickling solution injection volume is half of compound welded tube volume capacity, the pump body stop work, the work of the last electric roller of pipe support this moment drives compound welded tube and rotates along the surface of honeycomb duct, the rotation rate per minute is not more than 20 rotations, and every 5 minutes stop 1 minute, wait for 30 to 60 minutes.

Description

Acid pickling passivation equipment for stainless steel composite welded pipe

Technical Field

The utility model relates to a novel metal composite processing technology field specifically is compound welded tube pickling passivation equipment of stainless steel.

Background

At present, the acid pickling passivation process of stainless steel pipes mainly adopts a method that a pipe is coiled after the plate is subjected to acid pickling passivation, and a stainless steel composite welded pipe manufactured by people is made of a stainless steel composite plate, and the material cannot realize the acid pickling passivation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound welded pipe pickling passivation equipment of stainless steel possesses the advantage that can be with compound welded pipe pickling passivation, has solved the problem that traditional equipment can't carry out pickling passivation to stainless steel combined material.

In order to achieve the above object, the utility model provides a following technical scheme: the pickling passivation device for the stainless steel composite welded pipe comprises the composite welded pipe and a flow guide shaft, wherein sealing expansion plugs are arranged on two sides of the composite welded pipe, and both ends of the outer surface of the guide shaft are movably connected with the inner surface of the sealing expansion plug through bearings, both sides of the outer surface of the guide shaft are fixedly connected with stirring blade rotating frames, a stirring blade is fixedly connected between the two stirring blade rotating frames, the right side of the flow guide shaft is fixedly connected with a main flow pipe, the upper end of the right side of the main flow pipe is fixedly connected with a cleaning pipeline, the outer surface of the cleaning pipeline is fixedly connected with a first one-way valve, the right side of the cleaning pipeline is fixedly connected with a clear water storage tank, the lower end of the right side of the main flow pipe is fixedly connected with an acid washing pipeline, the outer surface of the acid washing pipeline is fixedly connected with a second one-way valve, the right side fixedly connected with pump body of pickling pipeline, the input fixedly connected with acidizing fluid storage tank of the pump body.

Preferably, the lower end of the seal expansion plug is fixedly connected with a liquid discharge pipe, and the outer surface of the liquid discharge pipe is fixedly connected with an electromagnetic valve.

Preferably, the lower end of the left side of the acid liquor storage tank is fixedly connected with a liquid collector through a pipeline.

Preferably, the bottom of the composite welded pipe is movably connected with a pipeline support, the top of the pipeline support is arc-shaped, and the top of the pipeline support is provided with an electric roller.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model drives the pickling solution in the acid liquor storage tank to flow to the guide shaft through the pickling pipeline and the total flow pipe through the work of the pump body, as the surface of the guide shaft is provided with the guide hole, the pickling solution enters the sealing cavity of the composite welded pipe, when the injection amount of the pickling solution is half of the volume capacity of the composite welded pipe, the pump body stops working, at the moment, the work of the electric roller on the pipeline bracket drives the composite welded pipe to rotate along the outer surface of the guide pipe, the rotating speed is not more than 20 revolutions per minute, and the stirring is stopped for 1 minute every 5 minutes, waiting for 30 to 60 minutes, through the arrangement of the stirring blades and the stirring blade rotating frame, as the stirring blades and the stirring blade rotating frame are immovable, the composite welded pipe can disorder and stir the pickling solution in the inner cavity of the composite welded pipe in the rotating process, the pickling solution can rapidly and sufficiently react with the surface of the inner cavity of the composite welded pipe, after rotating for 30 to 60 minutes, the liquid discharge pipe is rotated by the electric roller to be vertically downward, the pickling solution is discharged by controlling the opening of the electromagnetic valve, clear water is driven to flow to the flow guide pipe through the cleaning pipeline and the total flow pipe by the operation of a water pump in the clear water storage tank through the arrangement of the clear water storage tank, the clear water is injected into the inner cavity of the composite welded pipe by the flow guide pipe, when the injection amount of the clear water is one half of the volume capacity of the composite welded pipe, the interior of the composite welded pipe is cleaned by the clear water through the rotation of the electric roller, the liquid discharge pipe is vertically downward through the rotation of the electric roller after rotating and cleaning for five minutes, and then the cleaned liquid is remotely discharged through an external pipeline, so that the pickling passivation and the cleaning of the composite welded pipe are integrated, a black chromide oxide layer generated on the surface in the interior of the composite welded pipe is pickled and removed, and the surface of the stainless steel is in, more beautiful and solves the problem that the traditional equipment can not carry out pickling passivation treatment on the stainless steel composite material.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. sealing and expanding the plug; 2. a flow guide shaft; 3. an acid liquor storage tank; 4. a liquid collector; 5. Stirring blades; 6. a clear water storage tank; 7. a pipeline support; 8. compounding and welding the pipes; 9. stirring the leaf rotating frame; 10. a main flow pipe; 11. cleaning a pipeline; 12. a first check valve; 13. a second one-way valve; 14. pickling a pipeline; 15. a pump body; 16. and a liquid discharge pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1, the pickling passivation device for stainless steel composite welded pipes comprises a composite welded pipe 8 and a flow guide shaft 2, wherein the bottom of the composite welded pipe 8 is movably connected with a pipeline support 7, the top of the pipeline support 7 is arc-shaped, electric rollers are arranged on the top of the pipeline support 7, sealing expansion plugs 1 are arranged on two sides of the composite welded pipe 8, two ends of the outer surface of the flow guide shaft 2 are movably connected with the inner surface of the sealing expansion plugs 1 through bearings, the lower end of the sealing expansion plugs 1 is fixedly connected with a liquid discharge pipe 16, the outer surface of the liquid discharge pipe 16 is fixedly connected with an electromagnetic valve, stirring blade rotating frames 9 are fixedly connected on two sides of the outer surface of the flow guide shaft 2, stirring blades 5 are fixedly connected between the two stirring blade rotating frames 9, a main flow pipe 10 is fixedly connected on the right side of the flow guide shaft 2, a cleaning pipeline 11 is fixedly connected on the upper end of the right side, a clean water storage tank 6 is fixedly connected to the right side of the cleaning pipeline 11, a pickling pipeline 14 is fixedly connected to the lower end of the right side of the main flow pipe 10, a second check valve 13 is fixedly connected to the outer surface of the pickling pipeline 14, a pump body 15 is fixedly connected to the right side of the pickling pipeline 14, an acid storage tank 3 is fixedly connected to the input end of the pump body 15, a liquid collector 4 is fixedly connected to the lower end of the left side of the acid storage tank 3 through a pipeline, the pickling solution in the acid storage tank 3 is driven to flow to the flow guide shaft 2 through the pickling pipeline 14 and the main flow pipe 10 by the operation of the pump body 15, the pickling solution enters the sealing cavity of the composite welded pipe 8 due to the flow guide holes formed in the surface of the flow guide shaft 2, when the injection amount of the pickling solution is half of the volume capacity of the composite welded pipe 8, the pump body 15 stops operating, and, the rotating speed is not more than 20 revolutions per minute, the operation is stopped for 1 minute every 5 minutes, the waiting time is 30 to 60 minutes, through the arrangement of the stirring blade 5 and the stirring blade rotating frame 9, because the stirring blade 5 and the stirring blade rotating frame 9 are fixed, the pickling solution in the inner cavity of the composite welded pipe 8 can be disordered and stirred in the rotating process of the composite welded pipe 8, the pickling solution can be quickly and fully reacted with the surface of the inner cavity of the composite welded pipe 8, after the rotation is carried out for 30 to 60 minutes, the liquid discharge pipe 16 is vertically downward through the rotation of the electric idler wheel, the pickling solution is discharged through the opening of the control electromagnetic valve, through the arrangement of the clean water storage tank 6, the work of the water pump in the clean water storage tank 6 drives the clean water to flow to the flow guide pipe 2 through the cleaning pipeline 11 and the total flow pipe 10, the clean water is injected into the inner cavity of the composite welded pipe 8 by the flow guide pipe 2, when the injection amount is, through the rotation of electronic gyro wheel, make clear water wash compound welded pipe 8 inside, after rotating and wasing five minutes, rotation through electronic gyro wheel makes fluid-discharge tube 16 perpendicular downwards, then carry out long-range discharge through the liquid after will wasing the external pipeline, realized to compound welded pipe 8 pickling passivation and wash in an organic whole, reach and carry out the pickling to getting rid of compound welded pipe 8 inside surperficial one deck black chromated oxide layer that generates, make the stainless steel surface be the whitening state, and is more pleasing to the eye, the problem that traditional equipment can't carry out pickling passivation to stainless steel combined material has been solved.

All the components in the utility model are universal standard components or components known by technicians in the field, the structure and principle of the components are known by technicians in the technical manual or known by conventional experimental methods, standard parts used in the application document can be purchased from the market, the components in the application document can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each component adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, machines, parts and equipment adopt conventional models in the prior art, the control mode is automatically controlled by a controller, a control circuit of the controller can be realized by simple programming of technicians in the field, the components belong to the common knowledge in the field, and the application document is mainly used for protecting mechanical devices, so the control mode and circuit connection are not explained in detail in the application document, no specific description will be made herein.

When the device is used, the pump body 15 is operated to drive the pickling solution in the acid solution storage tank 3 to flow to the guide shaft 2 through the pickling pipeline 14 and the total flow pipe 10, the guide hole is formed in the surface of the guide shaft 2, so that the pickling solution enters the sealed cavity of the composite welded pipe 8, when the injection amount of the pickling solution is one half of the volume capacity of the composite welded pipe 8, the pump body 15 stops working, at the moment, the composite welded pipe 8 is driven to rotate along the outer surface of the guide pipe 2 through the working of the electric roller on the pipeline support 7, the rotating speed is not more than 20 revolutions per minute, the composite welded pipe 8 stops for 1 minute every 5 minutes, the waiting time is 30 to 60 minutes, and through the arrangement of the stirring blades 5 and the stirring blade rotating frame 9, the stirring blades 5 and the stirring blade rotating frame 9 are fixed, so that the pickling solution in the inner cavity of the composite welded pipe 8 can be disorganized and stirred in, the pickling solution can quickly and sufficiently react with the surface of the inner cavity of the composite welded pipe 8, after the composite welded pipe 8 is rotated for 30-60 minutes, the liquid discharge pipe 16 is rotated through the electric roller to vertically downwards discharge the pickling solution by controlling the opening of the electromagnetic valve, the clear water is driven by the operation of the water pump in the clear water storage tank 6 to flow to the flow guide pipe 2 through the cleaning pipeline 11 and the total flow pipe 10 through the arrangement of the clear water storage tank 6, the clear water is injected into the inner cavity of the composite welded pipe 8 through the flow guide pipe 2, when the injection amount of the clear water is one half of the volume capacity of the composite welded pipe 8, the interior of the composite welded pipe 8 is cleaned through the rotation of the electric roller, after the composite welded pipe is rotationally cleaned for five minutes, the liquid discharge pipe 16 is vertically downwards rotated through the electric roller, then the cleaned liquid is remotely discharged through the external pipeline, and the pickling passivation and the cleaning of the composite welded pipe 8 are, the black chromide oxide layer generated on the surface inside the composite welded pipe 8 is removed by acid cleaning, so that the surface of the stainless steel is in a whitening state, and the appearance is more attractive.

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 (4)

1. Stainless steel composite welded pipe pickling passivation equipment, including composite welded pipe (8) and water conservancy diversion axle (2), its characterized in that: the composite welding pipe is characterized in that sealing expansion plugs (1) are arranged on two sides of the composite welding pipe (8), two ends of the outer surface of the guide shaft (2) are movably connected to the inner surface of the sealing expansion plugs (1) through bearings, stirring blade rotating frames (9) are fixedly connected to two sides of the outer surface of the guide shaft (2), stirring blades (5) are fixedly connected between the two stirring blade rotating frames (9), a main flow pipe (10) is fixedly connected to the right side of the guide shaft (2), a cleaning pipeline (11) is fixedly connected to the upper end of the right side of the main flow pipe (10), a first one-way valve (12) is fixedly connected to the outer surface of the cleaning pipeline (11), a clear water storage tank (6) is fixedly connected to the right side of the cleaning pipeline (11), a pickling pipeline (14) is fixedly connected to the lower end of the right side of the main flow pipe (10), and a second one-way valve (, the right side fixedly connected with pump body (15) of pickling pipeline (14), the input fixedly connected with acidizing fluid storage tank (3) of pump body (15).

2. The pickling and passivating device for the stainless steel composite welded pipe according to claim 1, characterized in that: the lower end of the seal expansion plug (1) is fixedly connected with a liquid discharge pipe (16), and the outer surface of the liquid discharge pipe (16) is fixedly connected with an electromagnetic valve.

3. The pickling and passivating device for the stainless steel composite welded pipe according to claim 1, characterized in that: the lower end of the left side of the acid liquor storage tank (3) is fixedly connected with a liquid collector (4) through a pipeline.

4. The pickling and passivating device for the stainless steel composite welded pipe according to claim 1, characterized in that: the bottom swing joint of compound welded pipe (8) has pipeline support (7), and the top of pipeline support (7) is the arc, pipeline support (7) top is provided with electronic gyro wheel.

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