Chemical pipeline welding safety protection device

Abstract

This utility model discloses a safety protection device for welding chemical pipelines, including a slag-blocking cover mechanism that covers the welding area. The slag-blocking cover mechanism includes a slag-blocking cover, which comprises a detachable first cover body and a second cover body. An operating port is provided on the slag-blocking cover. It also includes head cover structures that are limited at both ends of the slag-blocking cover, each head cover comprising a detachable first head cover and a second head cover. Furthermore, it includes a sliding clamp structure for fixing the first and second head covers, comprising a clamp and a sliding mechanism that rolls along the pipeline on the inner wall of the clamp. This structure enables welding in chemical industrial parks to be protected by a cover, preventing safety accidents caused by randomly splashing and falling welding slag.

Description

Technical Field

[0001] This utility model belongs to the field of chemical pipeline welding safety protection technology, and in particular relates to a chemical pipeline welding safety protection device. Background Technology

[0002] For chemical companies, the transportation of materials between production equipment is mostly done through pipeline systems, specifically for transporting liquid materials during chemical production. Therefore, the pipeline systems in chemical production are extremely complex, with a high density of pipeline installations.

[0003] During routine pipeline maintenance, damaged pipelines require immediate welding repair. This is because, in chemical production processes, pipelines not only transport conventional materials such as water, but also frequently transport corrosive materials, including acidic and alkaline liquids, leading to more frequent pipeline damage and a greater need for welding repairs.

[0004] Because the pipelines in the production park are densely laid out, during the pipeline welding and repair process, operators climb onto the pipelines and use welding equipment to weld and repair the damaged parts of the pipelines. During the welding process, high-temperature welding slag falls randomly, which poses a very high risk to the densely laid pipeline system.

[0005] In chemical production, the use of organic solvents and organic materials is very common, and these substances are transported entirely through pipeline systems. During pipeline welding repairs, other pipelines in the network continue to transport materials normally. The risk is that weld slag, which may fly randomly during welding, could easily cause an explosion if it falls onto pipelines transporting flammable and explosive organic substances.

[0006] The reason is that pipelines for transporting materials are normally sealed, but during use, once the fittings on the pipeline age, such as valves, liquid can easily seep in, especially in cases of subtle seepage that are difficult to detect during routine maintenance.

[0007] Welding slag, which is carelessly spattered during welding operations, can easily ignite even the slightest leaks into the pipe structure, causing a very serious safety accident. This is because an explosion or fire in a densely packed pipe system can trigger a chain reaction.

[0008] In actual production, there have been instances where welding slag splashed onto valves in pipelines below while workers were welding pipes. Due to their age, the valves were slightly permeated with organic solvents, and the high-temperature welding slag immediately ignited, causing serious safety accidents.

[0009] The main reason for the aforementioned technical defects is that, during current pipeline welding operations, it is difficult to effectively prevent welding slag from splashing out at will. Utility Model Content

[0010] Based on the above background, the purpose of this utility model is to provide a safety protection device for welding chemical pipelines.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A safety protection device for welding chemical pipelines includes a slag-blocking cover mechanism that covers the welding area.

[0013] The slag-blocking cover mechanism includes a slag-blocking cover, which includes a first cover body and a second cover body that can be detachably disposed;

[0014] An operating port is provided on the slag-blocking cover;

[0015] It also includes a head cover structure that is limited at both ends of the slag baffle, the head cover structure including a first head cover and a second head cover that can be separated;

[0016] It also includes a sliding clamp structure for fixing the first head cover and the second head cover. The sliding clamp structure includes a clamp and a rolling structure installed on the inner wall of the clamp and rolling on the pipe.

[0017] Preferably, a head cover structure and a tail cover structure are respectively installed at both ends of the slag-blocking cover;

[0018] The head cover structure and the tail cover structure both include a first head cover and a second head cover.

[0019] Preferably, both the first head cover and the second head cover include a semi-cylindrical cover portion and a semi-conical cover portion of the integrally formed semi-cylindrical cover portion.

[0020] Preferably, the clamp includes a first clamp body and a second clamp body hinged to the first clamp body;

[0021] The semi-conical cover is fixedly connected to the side walls of the first hoop and the second hoop, respectively.

[0022] The bottom of the first hoop is hinged to the bottom of the second hoop. A screw is fixedly connected to the top of the first hoop. A slot is opened on the top of the second hoop to cooperate with the screw. When the hoop is closed, the screw is limited in the slot. The screw is threaded with a locking nut.

[0023] Preferably, the rolling structure includes adjusting screws respectively installed at the center positions of the first hoop and the second hoop, the inner end of the adjusting screws being fixedly connected to a roller seat, and a freely rotatable roller being limited within the roller seat.

[0024] Preferably, the first hoop and the second hoop are threadedly connected with locking screws that are locked onto the pipe.

[0025] Preferably, the first cover and the second cover are arc-shaped;

[0026] The two ends of the slag-blocking cover are respectively limited at the opening positions of the head cover structure and the tail cover structure.

[0027] Preferably, both ends of the first cover and the second cover are respectively welded with outwardly protruding arc-shaped outer flanges;

[0028] The opening of the semi-cylindrical cover is integrally formed with an inwardly protruding arc-shaped inner flange; the arc-shaped outer flange is limited to the inside of the arc-shaped inner flange.

[0029] Preferably, the second cover has an operating port;

[0030] The first cover is equipped with a smoke exhaust structure.

[0031] Preferably, the smoke exhaust structure includes a smoke exhaust pipe connected to the first hood, and a small smoke exhaust fan is installed at the air outlet end of the smoke exhaust pipe.

[0032] This utility model has the following beneficial effects:

[0033] 1. In this utility model, by cooperating with the pipeline through the slag-blocking cover mechanism, the welding area is covered by the slag-blocking cover mechanism during welding without affecting the welding operation of the operator. Under the cover state, the welding slag generated during welding can be effectively prevented from splashing randomly, thereby protecting the pipeline system of the chemical industrial park, and at the same time preventing the welding slag from falling into the pipeline and causing serious accidents.

[0034] 2. The slag-blocking cover is rotatable, and the operator's hand posture can be adjusted during rotation to achieve welding at different positions on the pipeline. For example, during circumferential welding (such as sealing welding), the posture can be easily adjusted. Specifically, due to the slag-blocking cover's limiting position, the slag-blocking cover rotates synchronously with the operator's hand during welding, allowing for flexible adjustment of the welding posture.

[0035] 3. During operation, the first and second covers, initially separated, are joined together and placed over the pipe (welding area). Then, the head cover structure and the tail cover structure (separated from the first and second covers) are merged using clamps. After merging, the first and second covers work together to restrict their separation, making them inseparable and completing the covering process. Therefore, this method allows for direct installation of the entire device onto the welding pipe during the welding process.

[0036] 4. It enables rolling and sliding movement on the pipeline, allowing the entire device to be moved to the next welding position on the same pipeline without disassembly during the welding process, greatly improving the convenience and practicality of use and operation. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the dispersed structure in an embodiment of the present utility model;

[0039] Figure 2 This is a schematic diagram of the clamp and rolling structure in the embodiment of this utility model;

[0040] Figure 3 This is a schematic diagram of the smoke exhaust structure in an embodiment of the present utility model;

[0041] Figure 4 This is a schematic diagram of the arc-shaped inner retaining flange in an embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0043] Figure 6 This is an embodiment of the present utility model. Figure 5 A schematic diagram of the planar structure.

[0044] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0048] Example 1

[0049] like Figure 1-6 As shown, a chemical pipeline welding safety protection device includes a slag-blocking cover mechanism that covers the welding area. By cooperating with the pipeline, the slag-blocking cover mechanism can cover the welding area during welding without affecting the operator's welding operation. Under the cover, it can effectively prevent welding slag from splashing randomly, thereby protecting the pipeline system of the chemical industrial park and preventing welding slag from falling into the pipeline and causing serious accidents.

[0050] Specifically, the slag-blocking hood mechanism includes a slag-blocking hood 2 (made of high-temperature resistant steel wound into the hood body described below), which includes a first hood body 21 and a second hood body 22 that can be separated. The first hood body 21 and the second hood body 22 are arc-shaped and are arc-shaped hoods. When the first hood body 21 and the second hood body 22 are combined to form a whole, the shape is cylindrical.

[0051] Furthermore, an operating opening 221 is provided on the second cover 22. The operating opening 221 has sufficient space for the operator's hands and welding torch to extend, and provides sufficient through vision to facilitate welding penetration. The operating opening 221 faces the operator. During the welding process, since the operator wears protective clothing and a mask, even if welding slag splashes onto the protective clothing, it will not affect the operator (in actual welding, the protective clothing worn by the operator provides protection).

[0052] Meanwhile, the front and rear ends of the slag baffle 2 are respectively limited by a head cover structure 1 and a tail cover structure 3. The head cover structure 1 and the tail cover structure 3 each include a first head cover 11 and a second head cover 12.

[0053] It also includes a sliding clamp structure for fixing the first head cover 11 and the second head cover 12. The sliding clamp structure includes a clamp and a rolling structure installed on the inner wall of the clamp and rolling on the pipe.

[0054] The slag-blocking cover 2 is equipped with a head cover structure 1 and a tail cover structure 3 at its two ends. The head cover structure 1 and the tail cover structure 3 are used to limit and shape the separated and merged slag-blocking cover 2 (the first cover body 21 and the second cover body 22 are merged and cover the pipeline, and the closure is completed by the head cover structure 1 and the tail cover structure 3).

[0055] Simultaneously, the entire device is installed by fitting with the pipeline through the head cover structure 1 and the tail cover structure 3. Furthermore, the head cover structure 1 and the tail cover structure 3 also increase the size of the cover cavity, thereby increasing the size of the covered area and ensuring sufficient coverage during the welding process.

[0056] During the welding process, the above-mentioned structure allows the welding slag generated during welding to splash freely within the cavity formed by the head cover structure 1, the tail cover structure 3, and the slag baffle 2, while preventing a large amount of welding slag from splashing and falling randomly, thereby increasing the safety of the welding operation.

[0057] Example 2

[0058] like Figure 1-6 As shown, based on the structure of Embodiment 1, the head cover structure 1 and the tail cover structure 3 both include a first head cover 11 and a second head cover 12.

[0059] The shapes of the first headgear 11 and the second headgear 12 are as follows:

[0060] Both the first head cover 11 and the second head cover 12 include a semi-cylindrical cover portion and a semi-conical cover portion integrally formed from the semi-cylindrical cover portion. Meanwhile, the clamp (the clamp is a conventional hinged clamp disclosed in the prior art) includes a first clamp body 14 and a second clamp body 13 hinged to the first clamp body 14.

[0061] Similar to existing clamp structures, the bottom of the first clamp body 14 is hinged to the bottom of the second clamp body 134, and a screw is fixedly connected to the top of the first clamp body 14. The top of the second clamp body 134 has a slot that mates with the screw. When the clamp is closed, the screw is limited within the slot. The screw is threaded with a locking nut.

[0062] When the second clamp 134 closes the first clamp 14, the screw is engaged in the slot and locked by the locking nut to prevent the clamp from separating.

[0063] During this process, the first head cover 11 and the second head cover 12 (specifically, the semi-conical cover parts on the first head cover 11 and the second head cover 12 are welded and fixed to the side walls of the corresponding first head cover 14 and the second head cover 134, respectively) are closed and closed with the clamps to form a complete cover structure.

[0064] The advantages of this method are:

[0065] During operation, the first cover 21 and the second cover 22, which are in their separated state, are first assembled and then placed over the pipe (welding area). Subsequently, the head cover structure 1 and the tail cover structure 3 (the first cover 11 and the second cover 12, which are in their separated state) are merged using clamps. After merging, the first cover 11 and the second cover 12 work together to limit the first cover 21 and the second cover 22, making them inseparable and completing the covering process. Therefore, this method allows the entire device to be directly installed on the welding pipe during the welding process.

[0066] The specific limiting structure is as follows: the front and rear ends of the first cover 21 and the second cover 22 are respectively welded with outwardly protruding arc-shaped outer flanges 23;

[0067] Correspondingly, the opening of the semi-cylindrical cover (on the first head cover 11 and the second head cover 12) is integrally formed with an inwardly protruding arc-shaped inner flange A; the arc-shaped outer flange 23 is limited to the inside of the arc-shaped inner flange A.

[0068] Therefore, when the first head cover 11 and the second head cover 12 are combined, the slag-blocking cover 2 is limited by the cooperation of the arc-shaped inner flange A and the slag-blocking cover 2 is prevented from separating.

[0069] The advantages of this method also include:

[0070] The slag-blocking cover 2 is rotatable, and the operator's hand posture can be adjusted during rotation to achieve welding at different positions on the pipeline. For example, during circumferential welding (such as sealing welding), the posture can be easily adjusted. Specifically, because the slag-blocking cover 2 is limited, the operator can rotate the slag-blocking cover 2 synchronously with the operator's hand during welding, thus flexibly adjusting the welding posture.

[0071] Example 3

[0072] like Figure 1-6 As shown, based on the structure of Embodiment 2, this embodiment allows for flexible pushing of the entire device onto the next welding position on the pipe when multiple welding positions are required on a single pipe during the welding process, without disassembling or separating the entire device.

[0073] Specifically, the rolling structure includes adjusting screws 152 installed at the center positions of the first hoop 14 and the second hoop 134, respectively. The inner end of the adjusting screw 152 is fixedly connected to a roller seat 15, and a freely rotatable roller 151 is limited within the roller seat 15. (Specifically, the roller seat 15 and roller 151 are conventional structures disclosed in the prior art, such as articulated balls). Its main structure is as follows: a groove is formed on the roller seat 15 to limit the roller 151. The roller 151 can rotate and roll freely within the groove, but cannot detach from the groove.

[0074] Once the clamp is engaged in the pipe, the adjusting screw 15 is turned until the roller seat 15 and roller 151 abut against the pipe. This allows the roller 151 to flexibly roll and assist in moving the entire device to the welding position. Furthermore, this method allows the entire device to be secured to pipes of different diameters and pushed onto the pipe to the welding position.

[0075] The first clamp 14 and the second clamp 134 are threadedly connected to locking screws 16 that are locked onto the pipe. When the entire device is pushed to the pipe welding area, it is positioned by the locking screws 16 pressing it against the pipe (appropriate positioning is sufficient, not necessarily very stable positioning, because the locking screws 16 will need to be loosened to move the entire device later, and even if the locking screws loosen during the welding process, it will not affect the welding operation).

[0076] Example 4

[0077] like Figure 1-6 As shown, in this embodiment, based on the structure of embodiment 3, since the hood structure is a relatively closed environment during the welding process, in order to prevent the welding smoke generated from not being able to be dispersed in time and interfering with the welding clarity, the first hood 21 is equipped with a smoke exhaust structure (directly facing the operation port 221).

[0078] Specifically, the smoke exhaust structure includes a smoke exhaust pipe 24 connected to the first hood 21, and a small smoke exhaust fan 241 is installed at the air outlet end of the smoke exhaust pipe 24.

[0079] Among them, the small exhaust fan 241 is a conventional small fan disclosed in the prior art, and works in the same way as existing small fans. During operation, the small exhaust fan 241 will drive the airflow to discharge smoke and dust from the exhaust pipe 24.

[0080] Similar to existing small fans, the small fan is powered by a battery (power bank), such as by fixing the battery directly to the outer wall of the first cover 21.

[0081] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A chemical pipeline welding safety protection device, characterized in that, This includes a slag-blocking cover mechanism that covers the welding area; The slag-blocking cover mechanism includes a slag-blocking cover, which includes a first cover body and a second cover body that can be detachably disposed; An operating port is provided on the slag-blocking cover; It also includes a head cover structure that is limited at both ends of the slag baffle, the head cover structure including a first head cover and a second head cover that can be separated; It also includes a sliding clamp structure for fixing the first head cover and the second head cover. The sliding clamp structure includes a clamp and a rolling structure installed on the inner wall of the clamp and rolling on the pipe.

2. The chemical pipeline welding safety protection device according to claim 1, characterized in that, The slag-blocking cover is equipped with a head cover structure and a tail cover structure at its two ends, respectively. The head cover structure and the tail cover structure both include a first head cover and a second head cover.

3. The chemical piping welding safety shield of claim 2, wherein, Both the first headgear and the second headgear include a semi-cylindrical cover portion and a semi-conical cover portion of the integrally formed semi-cylindrical cover portion.

4. The chemical process piping welding safety shield of claim 3, wherein, The clamp includes a first clamp body and a second clamp body hinged to the first clamp body; The semi-conical cover is fixedly connected to the side walls of the first hoop and the second hoop, respectively; The bottom of the first hoop is hinged to the bottom of the second hoop. A screw is fixedly connected to the top of the first hoop. A slot is opened on the top of the second hoop to cooperate with the screw. When the hoop is closed, the screw is limited in the slot. The screw is threaded with a locking nut.

5. The chemical process piping welding safety shield of claim 4, wherein, The rolling structure includes adjusting screws installed at the center of the first hoop and the second hoop respectively. The inner end of the adjusting screw is fixedly connected to a roller seat, and a freely rotatable roller is limited inside the roller seat.

6. The chemical process piping welding safety shield of claim 4, wherein, The first hoop and the second hoop are threadedly connected to locking screws that are pressed onto the pipe.

7. The chemical process piping welding safety shield of claim 3, wherein, The first and second covers are arc-shaped; The two ends of the slag-blocking cover are respectively limited at the opening positions of the head cover structure and the tail cover structure.

8. The chemical process piping welding safety shield of claim 7, wherein, Both ends of the first cover and the second cover are respectively welded with outwardly protruding arc-shaped outer flanges; The opening of the semi-cylindrical cover is integrally formed with an inwardly protruding arc-shaped inner flange; the arc-shaped outer flange is limited to the inside of the arc-shaped inner flange.

9. The chemical process piping welding safety shield of claim 7, wherein, The second cover has an operating port; The first cover is equipped with a smoke exhaust structure.

10. The chemical process piping welding safety shield of claim 9, wherein, The smoke exhaust structure includes a smoke exhaust pipe connected to the first hood, and a small smoke exhaust fan is installed at the air outlet of the smoke exhaust pipe.

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