Automatic derusting and purging device for pipeline

Abstract

The utility model discloses an automatic derusting and purging device for a pipeline. The automatic derusting and purging device comprises a pneumatic angle grinder, the supporting seat is used for supporting the pneumatic angle grinder and comprises a placing frame and a fixing assembly for fixing the pneumatic angle grinder on the placing frame; the handle is fixedly connected with the supporting seat; the rust removal component is in transmission connection with the power output end of the pneumatic angle grinder; and the air supply mechanism is connected with the pneumatic angle grinder to provide a compressed air source for the pneumatic angle grinder. According to the automatic derusting and purging device for the pipeline, the derusting efficiency is improved, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to rust removal technical field, especially a kind of automatic rust removal blowing device for pipeline. BACKGROUND

[0002] In engineering project construction, pipeline prefabrication is the key link to ensure the safe and efficient operation of pipeline system. Its process usually covers pipeline cutting, bevel processing, assembly welding and necessary corrosion and heat preservation treatment. Taking natural gas pipeline as an example, before being put into use, it needs to be strictly pretreated, and it is a crucial step to carry out shot blasting rust removal treatment on the inner and outer walls of the pipeline to reach Sa2.5 level. This rust removal level requires completely removing the oxides, rust and other impurities on the metal surface, so that the surface presents uniform metal luster and the roughness reaches a certain standard, to ensure the adhesion and protection effect of the subsequent corrosion-resistant coating.

[0003] In the prior art, an internal grinder is usually used for pipeline rust removal work, but this method has the following defects:

[0004] On the one hand, the working principle of the internal grinder is mainly based on motor-driven grinding head rotation, and its speed and torque are limited, resulting in low rust removal efficiency. In the case of processing a large number of pipelines, a lot of time and labor cost is needed. Taking long-distance pipeline rust removal as an example, due to the limited single rust removal length of the internal grinder, the equipment needs to be moved frequently, which not only increases the complexity of operation, but also prolongs the overall rust removal time.

[0005] On the other hand, for small-diameter pipelines, the existing internal grinder is difficult to effectively work inside the pipeline due to its large size. The internal space of small-diameter pipelines is narrow, and the grinding head and transmission device of conventional internal grinders cannot be adapted, making the rust removal of small-diameter pipelines a big problem in engineering.

[0006] The traditional manual polishing method not only has low efficiency, but also cannot be used for polishing due to limited operating space for the middle section of excessively long pipelines, which seriously affects the engineering progress and quality. SUMMARY

[0007] To solve the problems in the prior art, the utility model aims to provide an automatic rust removal blowing device for pipeline to improve the rust removal efficiency.

[0008] Based on the above problems, the technical solution provided by the utility model is:

[0009] The automatic rust removal blowing device for pipeline comprises:

[0010] A pneumatic angle grinder;

[0011] A support base for supporting the pneumatic angle grinder, including a mounting frame and a fixing assembly for fixing the pneumatic angle grinder on the mounting frame;

[0012] A handle, which is fixedly connected to the support base;

[0013] Rust removal components are connected to the power output end of the pneumatic angle grinder.

[0014] An air supply mechanism is connected to the pneumatic angle grinder to provide a compressed air source for the pneumatic angle grinder.

[0015] In some embodiments, the mounting rack has an upward-facing mounting slot for accommodating the pneumatic angle grinder.

[0016] In some embodiments, the fixing assembly includes a plurality of pressure plates spaced apart along the length of the placement slot, the pressure plates abutting against the pneumatic angle grinder and having their ends fixedly connected to the placement frame.

[0017] In some embodiments, the pressure plate is provided with an arc-shaped limiting groove that cooperates with the pneumatic angle grinder.

[0018] In some embodiments, the rust removal component is connected to the pneumatic angle grinder via a cat claw coupling.

[0019] In some embodiments, the rust removal component includes multiple steel wire ropes arranged circumferentially along the pneumatic angle grinder, with steel wool balls loosely or fixed at the ends of the steel wire ropes.

[0020] In some embodiments, the air supply mechanism includes an air source, a refrigerated dryer, and a compressed air tank connected in sequence via pipelines, the compressed air tank being connected to the pneumatic angle grinder via a pipeline.

[0021] In some embodiments, a first filter is provided on the pipeline between the air source and the refrigerated dryer, and a second filter is provided on the pipeline between the refrigerated dryer and the compressed air storage tank.

[0022] In some of these embodiments, the air source is an air compressor or an air pump.

[0023] In some of these embodiments, the handle is a telescopic rod.

[0024] Compared with the prior art, the advantages of this utility model are:

[0025] 1. The pneumatic angle grinder is fixed by the support base, and the pipe can be derusted by holding the handle. The structure is simple, does not rely on other complicated tools, is easy to operate, and improves the efficiency of derusting.

[0026] 2、The device is small in size and flexible, can smoothly enter the inside of a small-caliber pipeline to perform rust removal work, is suitable for large-caliber pipelines and small-caliber pipelines, improves applicability, and solves the problem that small-caliber pipelines cannot be effectively polished for a long time;

[0027] 3、The pneumatic angle grinder is used as a polishing power source, the efficiency is higher than that of a traditional internal grinder, the working efficiency is improved, only a small amount of workers are needed to monitor and assist operation to perform rust removal work, a large amount of manual attendance is not needed, and manpower cost is saved;

[0028] 4、The polishing part is made of a steel wire rope, the reuse of waste products can be realized, and rust removal cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced as follows, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without paying creative labor for the ordinary skilled in the art.

[0030] Figure 1 It is a structural schematic view of the embodiment of the utility model for the automatic rust removal and blowing device for pipeline.

[0031] Figure 2 It is a structural schematic view of the support seat in the embodiment of the utility model.

[0032] Among them:

[0033] 1、Pneumatic angle grinder;

[0034] 2、Support seat;2-1, placing rack;2-2, pressing plate;2-3, mounting part;2-4, placing groove;2-5, installation avoiding groove;

[0035] 3、Handle;

[0036] 4、Cat claw coupling;

[0037] 5、Rust removal part;

[0038] 6、Air source;

[0039] 7、Cold dryer;

[0040] 8、Compressed air storage tank;

[0041] 9、First filter;

[0042] 10、Second filter. DETAILED DESCRIPTION

[0043] The above scheme is further described below in combination with specific embodiments. It should be understood that these embodiments are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not mentioned are usually the conditions in conventional experiments.

[0044] As shown in Figure 1 , it is a structural schematic diagram of the present application, providing an automatic rust removal and blowing device for pipeline, comprising a pneumatic angle grinder 1, a support seat 2 supporting the pneumatic angle grinder 1, a handle 3 connected with the support seat 2, a rust removal component 5 transmission connected with the power output end of the pneumatic angle grinder 1, and a gas supply mechanism providing compressed gas source for the pneumatic angle grinder 1.

[0045] The pneumatic angle grinder 1 adopts a commonly used small handheld pneumatic angle grinder of the prior art, and the polishing structure at the front end of the pneumatic angle grinder 1 is removed and the rust removal component 5 is installed. In this example, the rust removal component 5 is transmission connected with the pneumatic angle grinder 1 through the cat claw coupling 4, and the rust removal component 5 includes a plurality of steel wire ropes arranged along the circumference of the pneumatic angle grinder 1, and the ends of the steel wire ropes are loose. In this way, the rust removal component is driven to rotate by the pneumatic angle grinder 1, and the inner wall of the pipeline is cleaned and rusted by the loose steel wires at the ends of the steel wire ropes.

[0046] When installing, fold a section of steel wire rope and clamp it on the cat claw coupling 4, and then screw and fix the upper and lower covers of the cat claw coupling 4. In other embodiments, a steel wire ball can also be fixed at the end of the steel wire rope, and the inner wall of the pipeline is rusted by friction between the steel wire ball and the inner wall of the pipeline.

[0047] As shown in Figure 2 , the support seat 2 includes a placing rack 2.1 and a fixing assembly for fixing the pneumatic angle grinder 1 on the placing rack 2.1, and an open upward placing groove 2-4 for accommodating the pneumatic angle grinder 1 is arranged on the placing rack 2.1.

[0048] The fixing assembly includes a plurality of pressing plates 2-2 arranged at intervals along the length direction of the placing groove 2-4, the pressing plates 2-2 abut against the pneumatic angle grinder 1 and are fixedly connected with the placing rack 2-1 at both ends, specifically, an installation part 2-3 is arranged below the placing groove 2-4, an installation avoiding groove 2-5 is arranged below the installation part 2-3, and the both ends of the pressing plate 2-2 are fixedly connected with the installation part 2-3 through bolts.

[0049] In order to improve the stability of the structure, an arc-shaped limiting groove matched with the pneumatic angle grinder 1 is arranged on the pressing plate 2-2, and the shell of the pneumatic angle grinder 1 is pressed and limited by the placing groove 2-4 and the limiting groove to avoid displacement.

[0050] In this example, the handle 3 uses a commercially available telescopic rod, and a positioning hole is arranged in the mounting portion 2-3 for the telescopic rod to extend into, and the telescopic rod is welded and fixed with the mounting portion 2-3, and the length of the telescopic rod can be adjusted according to needs, and the pneumatic angle grinder 1 can be moved to a position where rust removal is needed by holding the handle 3, and the operation is convenient.

[0051] The air supply mechanism comprises a gas source 6, a cold dryer 7 and a compressed air storage tank 8 connected in sequence through pipelines, and the compressed air storage tank 8 is connected with the pneumatic angle grinder 1 through a pipeline.

[0052] In order to filter impurities in the air, a first filter 9 is arranged on the pipeline between the gas source 6 and the cold dryer 7, and a second filter 10 is arranged on the pipeline between the cold dryer 7 and the compressed air storage tank 8.

[0053] The working principle of the utility model is as follows:

[0054] The compressed air generated by the gas source 6 is dehumidified by the cold dryer 7, removes impurities by the first filter 9 and the second filter 10, and then stored in the compressed air storage tank 8, and then provides a power source for the pneumatic angle grinder 1, and the pneumatic angle grinder 1 drives the rust removal component 5 to rotate, and moves the rust removal component 5 to the position where rust removal is needed through the handle 3, and can perform rust removal work on the inner wall of the pipeline.

[0055] In summary, the device has the advantages of simple structure, convenient operation, improved rust removal efficiency, reduced rust removal cost, and is particularly suitable for rust removal of small-diameter pipelines.

[0056] The above examples are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent transformation or modification according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. An automatic rust blowing device for a pipeline, characterized by, The application relates to an air angle grinder, which comprises the following parts: an air angle grinder; a supporting seat for supporting the air angle grinder, which comprises a placing rack and a fixing assembly for fixing the air angle grinder on the placing rack; a handle fixedly connected with the supporting seat; a rust removal component in transmission connection with a power output end of the air angle grinder; an air supply mechanism connected with the air angle grinder to provide a compressed air source for the air angle grinder.

2. The automatic derusting and purging device for a pipeline according to claim 1, characterized in that: The placing rack is provided with a placing groove with an upward opening for accommodating the air angle grinder.

3. The automatic derusting and purging device for a pipeline according to claim 2, characterized in that: The fixing assembly comprises a plurality of pressing plates arranged at intervals along the length direction of the placing groove, the pressing plates abutting against the air angle grinder and being fixedly connected with the placing rack at both ends.

4. The automatic derusting and purging device for pipelines according to claim 3, characterized in that: The pressing plates are provided with arc-shaped limiting grooves matched with the air angle grinder.

5. The automatic derusting and purging device for pipelines according to claim 1, characterized in that: The rust removal component is in transmission connection with the air angle grinder through a cat claw coupling.

6. The automatic derusting and purging device for a pipeline according to claim 5, characterized in that: The rust removal component comprises a plurality of steel wire ropes arranged in the circumferential direction of the air angle grinder, and the terminal ends of the steel wire ropes are loosely or fixedly provided with steel wire balls.

7. The automatic derusting and purging device for pipelines according to claim 1, characterized in that: The air supply mechanism comprises an air source, a cold dryer and a compressed air storage tank connected in sequence through pipelines, and the compressed air storage tank is connected with the air angle grinder through a pipeline.

8. The automatic derusting and purging device for pipelines according to claim 7, characterized in that: A first filter is arranged on the pipeline between the air source and the cold dryer, and a second filter is arranged on the pipeline between the cold dryer and the compressed air storage tank.

9. The automatic derusting and purging device for pipelines according to claim 7, characterized in that: The air source is an air compressor or an air pump.

10. The automatic derusting and purging device for pipelines according to claim 1, characterized in that: The handle is a telescopic rod.

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