Purification device and long-distance pipeline welding mechanism and long-distance pipeline welding method
Patent Information
- Application Number
- CN202510497701.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-10-23
AI Technical Summary
[0005]本发明的第一个目的在于提供一种净化装置,以解决现有技术中存在的进行长输管道焊接产生有害气体和烟尘扩散至长输管道焊接处的周围,不利于焊接装置周围的工作人员进行工作,从而降低了周围工作人员对管道进行焊接施工的工作效率,且不利于工作人员的健康的问题
[0026]本发明提供了一种净化装置,净化装置应用于长输管道的焊接,长输管道焊接处位于安装组件的容纳部,净化装置包括相对设置的两个安装壳体,两个安装壳体均安装于安装组件上方,且位于容纳部的两侧,安装壳体内开设有多个沿安装壳体长度方向间隔设置的储液腔,多个储液腔均设置有出液口,出液口用于供净化液喷出,使净化液喷洒至容纳部上方,以对焊接长输管道产生的有害气体和烟尘进行净化,减少有害气体和烟尘扩散至长输管道焊接处的周围,减少了对进行焊接的工作人员造成影响的情况,提高了工作人员对长输管道进行焊接的工作效率,且有利于工作人员的健康。
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Figure CN122956174A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pipeline welding technology, and in particular to a purification device, a long-distance pipeline welding mechanism, and a long-distance pipeline welding method. Background Technology
[0002] Natural gas refers to a mixture of hydrocarbon and non-hydrocarbon gases naturally occurring in underground strata. In petroleum geology, it usually refers to oilfield gas and gas field gas. It is mainly found in oil fields and natural gas fields, with a small amount also found in coal seams. The main use of natural gas is as fuel. It can also be used to manufacture carbon black, chemicals, and liquefied petroleum gas. Propane and butane produced from natural gas are important raw materials for modern industry. In the production process of some long-distance pipelines, it is usually necessary to weld the two sections of the pipeline together.
[0003] In existing technologies, welding equipment is typically used to perform pre-buttoning followed by welding of long-distance pipelines to improve welding efficiency. However, pipeline welding generates harmful gases and fumes (containing heavy metals). The harmful gases mainly include sulfur dioxide (SO2) and nitrogen oxides (NOx). x The presence of acidic gases such as acetaminophen can irritate the respiratory tract and cause symptoms such as coughing and wheezing in those who inhale them. During the welding process, harmful gases and fumes diffuse to the area around the welding point of the long-distance pipeline. Workers who inhale these gases may experience coughing and wheezing, which is detrimental to their work around the welding point and reduces their efficiency in welding the pipeline. It is also detrimental to the health of the workers.
[0004] Therefore, there is an urgent need for a purification device, a welding mechanism for long-distance pipelines, and a welding method for long-distance pipelines to solve the above problems. Summary of the Invention
[0005] The first objective of this invention is to provide a purification device to solve the problem in the prior art where harmful gases and fumes generated during welding of long-distance pipelines diffuse to the surrounding area of the welding site, which is detrimental to the work of workers around the welding device, thereby reducing the work efficiency of workers in the surrounding area and harming their health.
[0006] The second objective of this invention is to provide a welding mechanism for long-distance pipelines, which improves the work efficiency of workers welding long-distance pipelines.
[0007] The third objective of this invention is to provide a welding method for long-distance pipelines, which improves the work efficiency of workers welding long-distance pipelines.
[0008] Based on the above concept, the technical solution adopted by this invention is as follows:
[0009] A purification device is applied to the welding of long-distance pipelines. The welding point of the long-distance pipeline is located in the receiving part of the installation assembly. The purification device includes two mounting shells arranged opposite each other. Both mounting shells are installed above the installation assembly and located on both sides of the receiving part. Multiple liquid storage chambers are opened in the mounting shells and spaced apart along the length of the mounting shells. Each of the multiple liquid storage chambers is provided with a liquid outlet for spraying purification liquid. The purification liquid is sprayed onto the receiving part to purify the harmful gases and fumes generated by the welding pipeline.
[0010] Furthermore, the mounting housing is provided with a drive chamber located below the liquid storage chamber. A drive component is installed in the drive chamber, and a rotating shaft is installed at the output end of the drive component. The rotating shaft is sealed through the liquid storage chamber and extends to the top of the mounting housing.
[0011] Furthermore, a blower is mounted on one end of the rotating shaft located outside the top of the mounting housing;
[0012] A rotating magnetic plate is installed on the portion of the rotating shaft located inside the liquid storage cavity, and the rotating shaft can drive the rotating magnetic plate to rotate.
[0013] Furthermore, an atomizing mesh is provided at the liquid outlet for atomizing the purified liquid;
[0014] A telescopic rod is connected to the inner wall of the liquid storage chamber. A movable magnetic plate is connected to the movable magnetic plate, which is connected to a connecting rod. The connecting rod and the telescopic rod are located on the same side of the movable magnetic plate. The end of the connecting rod away from the movable magnetic plate passes through the atomizing mesh and extends to the outside of the mounting housing, where a baffle plate is installed. The rotating magnetic plate and the movable magnetic plate have the same polarity. When the movable end of the telescopic rod moves, it can drive the baffle plate to move closer to or further away from the atomizing mesh.
[0015] Furthermore, the telescopic rod is located above the connecting rod, and in the height direction of the mounting housing, the connecting rod and the telescopic rod are respectively located at both ends of the movable magnetic plate.
[0016] Furthermore, the purification device also includes a reciprocating alarm mechanism, which includes a movable rod mounted on the upper side of the connecting rod. A limiting groove is formed on the top wall of the liquid outlet, and a slidable limiting slider is provided inside the limiting groove. An elastic element is provided between the limiting slider and the side wall of the limiting groove. The movable rod can drive the limiting slider to move. The limiting slider is also connected to a sliding pressure plate. An alarm switch is provided on the top wall of the limiting groove. When the liquid level in the storage chamber reaches a preset liquid level, the movable rod can drive the sliding pressure plate to move below the alarm switch and squeeze the alarm switch to make the alarm switch emit an alarm signal.
[0017] Furthermore, a limiting crossbar is fixedly connected inside the limiting groove, the limiting slider is slidably sleeved on the limiting crossbar, the limiting crossbar is sleeved with the elastic element, the elastic element is located between the limiting slider and the groove wall on the side of the limiting groove away from the baffle plate, a connecting plate is connected to the side of the limiting slider facing the elastic element, and the sliding pressure plate is located at the end of the connecting plate away from the limiting slider.
[0018] Furthermore, each of the liquid storage chambers is provided with two liquid outlets, and the two liquid outlets of one liquid storage chamber are arranged opposite to each other in the width direction of the mounting housing;
[0019] The inner surface of the bottom wall of the liquid storage chamber is conical.
[0020] A long-distance pipeline welding mechanism includes an installation assembly, a welding device, and a purification device. The welding device is used to weld the long-distance pipeline. The installation assembly includes a support base plate, support vertical plates, and a welding support plate. Two support vertical plates are provided. Both the support vertical plates and the welding support plate are located above the support base plate, and the welding support plate is located between the two support vertical plates. The end of the welding support plate away from the support base plate has a receiving portion. The ends of the two support vertical plates away from the support base plate are each provided with an abutment portion. One long-distance pipeline is located at the abutment portion of one of the support vertical plates, and the welding end of one long-distance pipeline is located on the receiving portion of the welding support plate. The welding portions of the two long-distance pipelines are joined together.
[0021] A welding method for long-distance pipelines, using the aforementioned long-distance pipeline welding mechanism, includes the following steps:
[0022] S1. Place the two long-distance pipelines to be welded on the two support vertical plates and the welding support plate, and align the weld parts of the two long-distance pipelines.
[0023] S2. Control the operation of the drive components to make the purified liquid spray out through the outlet;
[0024] S3. Perform welding of the long-distance pipeline. If the alarm light alarms multiple times during the welding process, stop the welding work, turn off the drive unit, add purification liquid into the storage chamber, and then continue to execute steps S2 to S3. If the alarm light does not alarm multiple times during the welding process, continue welding the pipeline until the pipeline welding is completed.
[0025] The beneficial effects of this invention are:
[0026] This invention provides a purification device applied to the welding of long-distance pipelines. The welding point of the long-distance pipeline is located in the receiving part of the installation assembly. The purification device includes two mounting shells arranged opposite each other, both mounted above the installation assembly and located on both sides of the receiving part. Multiple liquid storage chambers are spaced apart along the length of the mounting shells within each mounting shell. Each liquid storage chamber is provided with an outlet for the purification liquid to be sprayed onto the receiving part, thereby purifying the harmful gases and fumes generated during the welding of the long-distance pipeline. This reduces the diffusion of harmful gases and fumes to the surrounding area of the welding point, minimizes the impact on welding workers, improves the efficiency of welding long-distance pipelines, and is beneficial to the health of the workers.
[0027] This invention also provides a welding mechanism for long-distance pipelines. The welding mechanism includes an installation assembly, a welding device, and the aforementioned purification device. The welding device is used to weld the long-distance pipeline. The installation assembly includes a supporting base plate, supporting vertical plates, and a welding support plate. Two supporting vertical plates are provided, both located above the supporting base plate and between the two supporting vertical plates. A receiving portion is provided at the end of the welding support plate away from the supporting base plate. An abutment portion is provided at the end of each of the two supporting vertical plates away from the supporting base plate. One long-distance pipeline is located in the receiving portion of one supporting vertical plate, and the welding end of one long-distance pipeline is located on the receiving portion of the welding support plate. The welding portions of the two long-distance pipelines are joined together to achieve welding of the two pipelines. During the welding process, harmful gases and fumes are purified, reducing the impact on welding personnel and improving the efficiency of welding long-distance pipelines.
[0028] In addition, the present invention also provides a long-distance pipeline welding method. Using the aforementioned long-distance pipeline welding mechanism, the pipeline welding method includes the following steps: S1, placing the two long-distance pipelines to be welded on two supporting vertical plates and a welding support plate, aligning the welding portions of the two pipelines; S2, controlling the drive unit to operate, causing the purified liquid to spray out through the outlet; S3, performing long-distance pipeline welding. During the welding process, if the alarm light alarms multiple times, purified liquid is added to the storage chamber until the pipeline welding is completed. By setting the above steps, it can be ensured that during the welding of long-distance pipelines, the purified liquid sprayed out through the outlet eliminates and purifies welding harmful gases and fumes, reducing the impact on welding personnel and improving the work efficiency of welding personnel on long-distance pipelines. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.
[0030] Figure 1 This is a first structural schematic diagram of the purification device provided in an embodiment of the present invention;
[0031] Figure 2 This is a schematic diagram of the second structure of the purification device provided in an embodiment of the present invention;
[0032] Figure 3 This is a schematic diagram of the third structure of the purification device provided in an embodiment of the present invention;
[0033] Figure 4 This is a cross-sectional schematic diagram of the purification device provided in an embodiment of the present invention;
[0034] Figure 5 yes Figure 4 An enlarged view of point A shown.
[0035] In the picture:
[0036] 1. Support base plate; 2. Support vertical plate; 3. Welded support plate; 4. Mounting housing; 401. Drive chamber; 402. Drive component; 403. Liquid storage chamber; 404. Rotating shaft; 405. Blowing component; 406. Liquid outlet; 407. Atomizing screen; 408. Telescopic rod; 409. Moving magnetic plate; 4010. Connecting rod; 4011. Baffle plate; 4012. Rotating magnetic plate; 5. Moving rod; 501. Limiting slide groove; 502. Limiting crossbar; 503. Elastic component; 504. Limiting slider; 505. Sliding baffle; 506. Connecting plate; 507. Sliding pressure plate; 508. Alarm switch; 509. Alarm light. Detailed Implementation
[0037] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.
[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0039] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.
[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.
[0042] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.
[0043] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0044] On the one hand, this embodiment provides a purification device that is applied to the welding of long-distance pipelines. It can purify the harmful gases and fumes generated during the welding of long-distance pipelines, thereby reducing the diffusion of harmful gases and fumes to the surrounding area of the welding site of the long-distance pipeline, reducing the impact on the welding workers, improving the work efficiency of the workers in welding long-distance pipelines, and ensuring the health of the workers.
[0045] like Figures 1-5 As shown, in this embodiment, the mounting assembly (not shown) is used to support the long-distance pipeline, and the weld joint of the long-distance pipeline is located in the receiving part of the mounting assembly (not shown). The purification device includes two mounting housings 4 arranged opposite to each other. Both mounting housings 4 are installed above the mounting assembly and located on both sides of the receiving part in its width direction. Multiple liquid storage chambers 403 are provided in the mounting housings 4, spaced apart along the length direction of the mounting housings 4. Each of the multiple liquid storage chambers 403 is provided with a liquid outlet 406, which is used to spray purification liquid onto the receiving part to purify the harmful gases and fumes generated during the welding of the long-distance pipeline. This reduces the diffusion of harmful gases and fumes to the area around the weld joint of the long-distance pipeline, reduces the obstruction of workers' vision by fumes and the inhalation of harmful gases and fumes by workers, reduces the impact on workers performing welding, improves the work efficiency of workers welding long-distance pipelines, and is beneficial to the health of workers.
[0046] In this embodiment, the multiple liquid storage chambers 403 are independent of each other. Of course, in other embodiments, the multiple liquid storage chambers 403 may be connected, or only some of the liquid storage chambers 403 may be connected. This embodiment does not make specific limitations on this, as long as it meets the actual use requirements.
[0047] It should be noted that welding during the long-distance pipeline process generates harmful gases and fumes (containing heavy metals). The harmful gases mainly include sulfur dioxide (SO2) and nitrogen oxides (NOx). x Acidic gases such as ) are purified by spraying a purification liquid to clean up the harmful gases and fumes generated during the welding of long-distance pipelines.
[0048] Of course, in other embodiments, the purification device may also consist of only a mounting housing 4 to purify harmful gases and fumes generated from welding long-distance pipelines.
[0049] Furthermore, it can be conceived that the multiple outlets 406 not only allow the purified liquid to be sprayed above the receiving part, but also allow the purified liquid to be sprayed to different positions along the length of the mounting housing 4. Since the harmful gases and fumes generated during the welding of long-distance pipelines are highly mobile, this arrangement can further improve the purification effect of harmful gases and fumes.
[0050] Furthermore, the top of the liquid storage chamber 403 is provided with a liquid inlet (not shown in the figure), which connects to the liquid storage chamber 403, allowing purified liquid to be delivered into the liquid storage chamber 403. In this embodiment, the liquid inlet has a conductive state and a blocked state. When the liquid inlet is in the conductive state, purified liquid can enter the liquid storage chamber 403 through the liquid inlet. When the liquid inlet is in the blocked state, it ensures that the purified liquid in the liquid storage chamber 403 will not flow out from the liquid inlet. The liquid inlet is selectively provided with a blocking element. When the liquid inlet is blocked by the blocking element, it is in a blocked state. The blocking element may also not block the liquid inlet. The blocking element includes, but is not limited to, a plug.
[0051] It should be noted that in this embodiment, the purification liquid can be a sodium hydroxide solution. Sodium hydroxide solution can neutralize sulfur dioxide and nitrogen oxides in harmful gases, producing salts and water, thereby achieving a purification effect. Simultaneously, the purification liquid is sprayed and adheres to the fumes, causing them to fall due to gravity, thus preventing them from reaching workers and purifying the fumes to avoid interfering with welding operations. Of course, in other embodiments, the purification liquid can be other solutions, such as plant extracts. The specific type of purification liquid is sufficient to purify harmful gases and fumes; this embodiment does not impose specific limitations.
[0052] Furthermore, such as Figure 4As shown, a drive chamber 401 is provided inside the mounting housing 4, located below the liquid storage chamber 403. A drive component 402 is installed inside the drive chamber 401, and a rotating shaft 404 is installed at the output end of the drive component 402. The rotating shaft 404 is sealed through the liquid storage chamber 403 and extends to the top of the mounting housing 4, that is, the rotating shaft 404 has a portion located in the liquid storage chamber 403. It can be understood that by setting the drive component 402 to drive the rotating shaft 404 to rotate, when the rotating shaft 404 rotates, it can drive the purified liquid in the liquid storage chamber 403 to generate a vortex, thereby achieving full mixing between the purified liquids at different positions in the liquid storage chamber 403. This avoids the precipitation of the purified liquid, which would cause the local concentration of the purified liquid in the liquid storage chamber 403 to be too high or too low, resulting in uneven purification of harmful gases and affecting the purification effect. This makes the purification of harmful gases and dust more stable. Furthermore, the rotation of the rotating shaft 404 causes the purified liquid in the storage chamber 403 to generate a vortex, which facilitates the movement of the purified liquid to the outlet 406, and facilitates the spraying of the purified liquid to the outside of the outlet 406.
[0053] Furthermore, a connecting cavity (not shown in the figure) is provided between the liquid storage chamber 403 and the driving chamber 401. A first through hole (not shown in the figure) is formed in the bottom wall of the liquid storage chamber 403, communicating with the connecting cavity. A second through hole (not shown in the figure) is formed in the driving chamber 401, also communicating with the connecting cavity, thus connecting the liquid storage chamber 403 and the driving chamber 401. The rotating shaft 404 is sealed through the first and second through holes. It can be understood that by providing the connecting cavity, the first through hole, and the second through hole, the installation requirements of the rotating shaft 404 are met. The sealed passage of the rotating shaft 404 through the first and second through holes prevents the purified liquid in the liquid storage chamber 403 from leaking into the driving chamber 401, avoiding waste of the purified liquid. It also prevents the purified liquid from affecting the driving component 402 in the driving chamber 401, ensuring the stability of the driving component 402 driving the rotating shaft 404.
[0054] For example, such as Figures 1-2 As shown, a blower 405 is mounted on one end of the rotating shaft 404 located outside the top of the mounting housing 4. It is understood that a blower is provided above each liquid storage chamber 403. The rotating shaft 404 drives multiple blowers 405 to blow air, which helps accelerate the contact and reaction between the gas and the purified liquid, thereby improving purification efficiency. Furthermore, the blowing helps to distribute the sprayed purified liquid more evenly in the air, increasing the contact area with the smoke and dust, improving the purification effect, and thus improving the work efficiency of workers welding long-distance pipelines. In this embodiment, the blower 405 includes, but is not limited to, a fan. The shape of the end of the rotating shaft 404 located outside the top of the mounting housing 4 matches the shape of the fan mounting hole. The fan is fixedly sleeved on the rotating shaft 404 through the mounting hole, and the axis of the fan coincides with the axis of the rotating shaft 404.
[0055] Furthermore, such as Figure 4 As shown, a rotating magnetic plate 4012 is installed on the portion of the rotating shaft 404 located within the liquid storage chamber 403. The rotating shaft 404 can drive the rotating magnetic plate 4012 to rotate. Specifically, the rotating magnetic plate 4012 is connected to the side of the rotating shaft 404 and is located on one side of the rotating shaft 404 in the vertical direction. It can be understood that by setting the rotating magnetic plate 4012, the uniformity of stirring of the purified liquid in the liquid storage chamber 403 can be further improved. During use, the sprayed purified liquid can be kept at approximately the same concentration level, avoiding uneven purification effect caused by excessively high or low local concentrations of the purified liquid, thus affecting the purification effect.
[0056] Further, in this embodiment, the length direction of the rotating magnetic plate 4012 is perpendicular to the axial direction of the rotating shaft 404, and the width direction is parallel to the rotating shaft 404, that is, the rotating magnetic plate 4012 is vertically fixed to the rotating shaft 404. Of course, in other embodiments, the rotating magnetic plate 4012 can also be fixed to the rotating shaft 404 at an angle, that is, the width direction of the rotating magnetic plate 4012 forms an angle with the axial direction of the rotating shaft 404, and the angle is less than 90°, for example, 45°. The orientation of the rotating magnetic plate 4012 can be set to meet actual usage requirements, and this embodiment does not impose specific limitations. Regarding the connection method between the rotating magnetic plate 4012 and the rotating shaft 404, it can be achieved through fasteners (e.g., screws), bonding, etc., and this embodiment does not impose specific limitations.
[0057] It should be noted that in this embodiment, by setting up the blower 405 and the rotating magnetic plate 4012, the airflow around the welding point of the long-distance pipeline is improved on the one hand, and the stability of the purification liquid in purifying harmful gases and fumes is improved on the other hand. Their combined effect further improves the purification effect of harmful gases and fumes, which is beneficial for the workers around the welding device to work, thereby improving the work efficiency of the workers around the pipeline welding construction. Moreover, only one drive component 402 is needed to drive the blower 405 and the rotating magnetic plate 4012, saving energy and avoiding the situation where setting up multiple drive components 402 occupies too much space in the purification device. This is conducive to realizing the miniaturization of the purification device and improving the integration effect.
[0058] Furthermore, multiple flow holes (not shown in the figure) are provided on the rotating magnetic plate 4012. It can be inferred that by providing multiple flow holes on the rotating magnetic plate 4012, when the rotating magnetic plate stirs the purified liquid in the liquid storage chamber 403, some of the purified liquid can move through the flow holes. While achieving uniform stirring of the purified liquid, the movement amplitude of the purified liquid in the liquid storage chamber 403 will not be too large, so that the impact force of the rotating magnetic plate 4012 stirring the purified liquid on the liquid storage chamber 403 and the mounting housing 4 is smaller, and the mounting housing 4 is more stable.
[0059] Furthermore, multiple flow holes are arranged in an array, that is, multiple flow holes are arranged in rows and columns. In this embodiment, the cross-section of the flow holes is rectangular. Of course, in other embodiments, the cross-section of the flow holes can also be circular or triangular, as long as it meets the actual use requirements. The diameters of the multiple flow holes can be the same or different; this embodiment does not specifically limit this. For example, as shown... Figure 4 As shown, an atomizing mesh plate 407 is provided at the liquid outlet 406 to atomize the purified liquid. It can be understood that by setting the atomizing mesh plate 407, the purified liquid sprayed from the liquid outlet 406 collides with the atomizing mesh plate 407, atomizing the purified liquid sprayed from the liquid outlet 406. This facilitates mixing with the airflow and diffusion to the vicinity of the weld joint of the long-distance pipeline, further improving the efficiency of purifying harmful air and dust. In this embodiment, the atomizing mesh plate 407 is located at the end of the liquid outlet 406 away from the rotating magnetic plate 4012, that is, at the outer end of the liquid outlet 406. The size of the atomizing mesh plate 407 is slightly larger than the size of the liquid outlet 406, meaning that the atomizing mesh plate 407 can completely cover the end of the liquid outlet 406 away from the rotating magnetic plate 4012, comprehensively atomizing the purified liquid sprayed from the liquid outlet 406, further improving the atomization effect of the purified liquid. In this embodiment, the atomizing mesh 407 can be made of stainless steel. Of course, in other embodiments, the atomizing mesh 407 can also be made of other materials, as long as the usage requirements of the atomizing mesh 407 are met. This embodiment does not impose specific limitations.
[0060] It should be noted that the atomizing mesh plate 407 may include a connected atomizing mesh sheet (not shown in the figure) and a frame (not shown in the figure), with the frame arranged in an aperture shape. The atomizing mesh sheet is located within the space formed by the frame, and multiple atomizing holes are evenly distributed on the atomizing mesh sheet. Of course, in other embodiments, the atomizing mesh plate 407 may also have other structures, as long as they meet the atomization requirements of the purified liquid. This embodiment does not specifically limit this.
[0061] For example, such as Figure 4As shown, a telescopic rod 408 is connected to the inner wall of the liquid storage chamber 403. A movable magnetic plate 409 is connected to the movable magnetic plate 409. A connecting rod 4010 is connected to the movable magnetic plate 409. The connecting rod 4010 and the telescopic rod 408 are located on the same side of the movable magnetic plate 409. The end of the connecting rod 4010 away from the movable magnetic plate 409 passes through the atomizing mesh plate 407 and extends to the outside of the mounting housing 4, and a baffle plate 4011 is installed thereon. The rotating magnetic plate 4012 has the same polarity as the movable magnetic plate 409. When the movable end of the telescopic rod 408 moves, it can drive the baffle plate 4011 to move closer to or away from the atomizing mesh plate 407. It is understandable that the rotating magnetic plate 4012 rotates along with the rotating shaft 404. When the rotating magnetic plate 4012 rotates along the rotating shaft 404, since the rotating magnetic plate 4012 and the moving magnetic plate 409 are arranged with like poles repelling each other, the magnetic repulsive force generated by the rotation of the rotating magnetic plate 4012 pushes the moving magnetic plate 409 to move. The telescopic rod 408, connecting rod 4010, and shielding plate 4011 connected to the moving magnetic plate 409 move accordingly. Specifically, when the rotating magnetic plate 4012 approaches the moving magnetic plate 409, the magnetic repulsive force generated by the rotation of the rotating magnetic plate 4012 pushes the moving magnetic plate 409 to move, thereby driving the telescopic rod 408, connecting rod 4010, and shielding plate 4011 to move. Plate 4011 moves away from the rotating shaft 404, that is, the baffle plate 4011 moves away from the liquid outlet 406, no longer blocking the atomizing mesh plate 407 and the liquid outlet 406, allowing the purified liquid to be sprayed out through the liquid outlet 406, thereby achieving atomization of the purified liquid and purification of harmful gases. When the purification device is not in use, the baffle plate 4011 can be manually driven to move closer to the liquid outlet 406, so that the baffle plate 4011 blocks the atomizing mesh plate 407 and the liquid outlet 406, preventing external dust from contaminating the inside of the purification device when it is not in use, and preventing the atomizing mesh plate 407 from being blocked, thus affecting the atomization effect of the purified liquid. In this embodiment, the telescopic rod 408 is an existing telescopic rod, whose movable end can move relative to the fixed end. Its specific structure will not be described in detail in this embodiment.
[0062] Furthermore, the bottom of the rotating magnetic plate 4012 and the bottom of the moving magnetic plate 409 are at the same height, which facilitates the rotation of the rotating magnetic plate 4012 to apply a magnetic repulsive force to the moving magnetic plate 409, thus facilitating the movement of the moving magnetic plate 409. Of course, in other embodiments, the bottom of the rotating magnetic plate 4012 and the bottom of the moving magnetic plate 409 may be at different heights, and this embodiment does not impose a specific limitation.
[0063] Furthermore, such as Figure 5As shown, the purification device also includes a reciprocating alarm mechanism, which includes a movable rod 5 mounted on the upper side of the connecting rod 4010. A limiting groove 501 is provided on the top wall of the liquid outlet 406. A slidable limiting slider 504 is provided inside the limiting groove 501. An elastic element 503 is provided between the limiting slider 504 and the side wall of the limiting groove 501. The movable rod 5 can drive the limiting slider 504 to move. The limiting slider 504 is also connected to a sliding pressure plate 507. An alarm switch 508 is provided on the top wall of the limiting groove 501. When the liquid level in the storage chamber 403 reaches the preset liquid level, the movable rod 5 can drive the sliding pressure plate 507 to move below the alarm switch 508 and squeeze the alarm switch 508 to make the alarm switch 508 emit an alarm signal. Specifically, the outlet 406 extends parallel to the width of the mounting housing 4 and parallel to the length of the limiting groove 501. The limiting slider 504 slides along the length of the limiting groove 501. The preset liquid level refers to the liquid level when the amount of purified liquid in the storage chamber 403 is low. The preset liquid level can be manually set as needed. It is understood that by setting a reciprocating alarm mechanism, when the liquid level in the storage chamber 403 reaches the preset liquid level, the amount of purified liquid in the storage chamber 403 is low, and the effect of the purified liquid in the storage chamber 403 on the movement of the moving magnetic plate 409 is weak. When the rotating magnetic plate 4012 rotates close to the moving magnetic plate 409, it can drive the moving magnetic plate 409 towards the outlet 406, thereby driving the connecting rod 4010 and the moving rod 5 to move away from the rotating shaft 404, and driving the limiting slider 504 and the sliding pressure plate 507 along the limiting groove 501. The slide plate 409 slides along its length towards the baffle plate 4011. Because the purifying liquid has a weak obstruction effect on the movement of the moving magnetic plate 409, the distance the moving magnetic plate 409 moves towards the outlet 406 is greater than the distance it moves towards the outlet 406 when there is more purifying liquid in the storage chamber 403. This allows the sliding pressure plate 507 to move to below the alarm switch 508 and press the alarm switch 508, causing the alarm switch 508 to emit an alarm signal to remind the operator to add purifying liquid to the storage chamber 403. In this embodiment, the preset liquid level is the position where the purifying liquid level is flush with the bottom surface of the moving magnetic plate 409.
[0064] Further reference Figure 5To ensure the efficiency of the reciprocating alarm mechanism and prevent the limit slider 504 from contacting the alarm switch 508, the alarm switch 508 is located between the limit slider 504 and the sliding pressure plate 507 along the length of the limit slide groove 501. When the liquid level in the liquid storage chamber 403 reaches the preset liquid level, the limit slider 504 can drive the sliding pressure plate 507 to move to one side of the alarm switch 508 (i.e., the left side of the alarm switch 508). It is conceivable that when the liquid level in the storage chamber 403 reaches the preset level, as the rotating magnetic plate 4012 rotates away from the moving magnetic plate 409, the magnetic repulsion force generated by the rotating magnetic plate 4012 on the moving magnetic plate 409 gradually decreases. The blocking effect of the purified liquid in the storage chamber 403 on the movement of the moving magnetic plate 409 is weak. At this time, due to the action of the elastic element 503, the elastic element 503 drives the limiting slider 504 and the sliding pressure plate 507 to slide away from the baffle plate 4011 along the length direction of the limiting groove 501. During this process, the sliding pressure plate 507 can... Move the device to the bottom of the alarm switch 508 and squeeze it to trigger an alarm signal. Specifically, when the liquid level in the storage chamber 403 reaches a preset level, during the rotation of the rotating magnetic plate 4012—that is, during the reciprocating motion of the limiting slider 504 and the sliding pressure plate 507 along the length of the limiting groove 501—the alarm switch 508 will repeatedly issue alarm signals to remind personnel to add purification liquid to the storage chamber 403. This ensures the high efficiency of the reciprocating alarm mechanism and facilitates personnel operation. In this embodiment, the elastic element 503 includes, but is not limited to, a spring.
[0065] Furthermore, in this embodiment, the driving component 402 drives the rotating shaft 404 to move, and the rotating shaft 404 drives the blower 405 and the rotating magnetic plate 4012 to rotate. A movable magnetic plate 409 that cooperates with the rotating magnetic plate 4012 is also provided to drive the baffle plate 4011 and the sliding pressure plate 507 to move. That is, only one driving component 402 is required to realize the movement of multiple components, saving the number of driving components 402 and reducing production costs.
[0066] For example, such as Figures 2-3 As shown, the alarm switch 508 is a conventional mechanical switch. When the sliding pressure plate 507 presses the alarm switch 508, it closes the internal contacts of the mechanical switch, thereby emitting an alarm signal. An alarm light 509 is installed on the top of the mounting housing 4. The alarm light 509 is electrically connected to the alarm switch 508, and the alarm switch 508 transmits the alarm signal to the alarm light 509. When the alarm light 509 receives the alarm signal, it flashes. It is understandable that the welding of long-distance pipelines generates significant noise. By installing the alarm light 509, which can produce different colors of light, it is easier for staff to spot the problem and promptly add purification fluid, ensuring the normal operation of the purification device.
[0067] It should be noted that, regardless of its position, the repulsive force between the rotating magnetic plate 4012 and the moving magnetic plate 409 is always greater than the extension force of the telescopic rod 408. When the rotating magnetic plate 4012 rotates to the side of the rotating shaft 404 closer to the moving magnetic plate 409, the repulsive force between the rotating magnetic plate 4012 and the moving magnetic plate 409 is greater than the elastic force of the elastic element 503. When the rotating magnetic plate 4012 rotates to the side of the rotating shaft 404 away from the moving magnetic plate 409, the repulsive force between the rotating magnetic plate 4012 and the moving magnetic plate 409 is less than the elastic force of the elastic element 503.
[0068] Furthermore, it can be conceivable that during the process of rotating the magnetic plate 4012 and driving the moving magnetic plate 409 to move, the shielding plate 4011 can be driven to reciprocate along its movement path, intermittently shielding the atomizing mesh plate 407 and the liquid outlet 406 by the shielding plate 4011, so that the purification liquid is sprayed out intermittently, thus saving the amount of purification liquid while ensuring the purification of harmful gases and dust.
[0069] Furthermore, such as Figure 4 As shown, the telescopic rod 408 is located above the connecting rod 4010, and the axis of the connecting rod 4010 coincides with the axis of the liquid outlet 406. In the height direction of the mounting housing 4, the connecting rod 4010 and the telescopic rod 408 are located at the two ends of the movable magnetic plate 409, respectively. It can be understood that the axis of the connecting rod 4010 coincides with the axis of the liquid outlet 406, meaning that the movable magnetic plate 409 will not completely block the liquid outlet 406 in the width direction of the mounting housing 4. This ensures that the movable magnetic plate 409 will not completely block the liquid outlet 406 regardless of its movement in the width direction of the mounting housing 4, guaranteeing that the purified liquid can be sprayed out through the liquid outlet 406. In other words, under the premise that the baffle plate 4011 automatically opens, it can be guaranteed that the purified liquid can be sprayed out through the liquid outlet 406. Furthermore, the automatic opening of the baffle plate 4011 is directly achieved by the driving component 402 and the rotating magnetic plate 4012, without the need for an additional driving mechanism, making operation convenient. Of course, in other embodiments, the axis of the connecting rod 4010 may also be located above the axis of the outlet 406. In this embodiment, the driving component 402 includes, but is not limited to, a servo motor.
[0070] Furthermore, in this embodiment, by setting a movable magnetic plate 409, in addition to realizing the transmission of the baffle plate 4011, it can also partially block the movement of the purified liquid in the storage chamber 403 towards the outlet 406, so as to prevent a large amount of purified liquid from being sprayed out of the outlet 406 due to its own gravity when there is a lot of purified agent in the storage chamber 403. The large amount of purified liquid sprayed per unit time would far exceed the amount required to purify the harmful gases and dust generated at that time, thus avoiding waste of purified liquid.
[0071] Furthermore, such as Figure 5 As shown, a limiting crossbar 502 is fixedly connected inside the limiting groove 501. A limiting slider 504 is slidably sleeved on the limiting crossbar 502. An elastic element 503 is located between the limiting slider 504 and the groove wall of the limiting groove 501 on the side away from the baffle plate 4011. A connecting plate 506 is connected to the side of the limiting slider 504 facing the elastic element 503. A sliding pressure plate 507 is located at the end of the connecting plate 506 away from the limiting slider 504. Specifically, the limiting crossbar 502 extends along the length direction of the limiting groove 501 and is fixedly connected to the two groove walls of the limiting groove 501 along its length direction. It is understandable that the limiting crossbar 502 is used to guide the limiting slider 504 and the elastic element 503, preventing them from misaligning or disengaging from the limiting groove 501. This ensures stable operation of the limiting slider 504 and the elastic element 503, thereby improving the stability when the sliding pressure plate 507 and the alarm switch 508 are pressed together. Furthermore, the connecting plate 506 indirectly connects the limiting slider 504 and the sliding pressure plate 507, allowing the limiting slider 504 to drive the sliding pressure plate 507 to press the alarm switch 508 without directly contacting it, thus facilitating operation.
[0072] Furthermore, a sliding baffle 505 is connected to the bottom of the limiting slider 504, and the top of the moving rod 5 is connected to the bottom of the sliding baffle 505. The top of the sliding baffle 505 is slidably fitted against the outer wall of the limiting groove 501 to block the opening end of the limiting groove 501. Specifically, the length of the sliding baffle 505 is greater than or equal to the length of the limiting groove 501. It can be understood that the telescopic spring, connecting plate 506, sliding pressure plate 507, and alarm switch 508 are all located within the space formed by the sliding baffle 505, the limiting groove 501, and the limiting groove 501. The sliding baffle 505 closes the opening end of the limiting groove 501, thereby protecting the elastic element 503, connecting plate 506, sliding pressure plate 507, and alarm switch 508, preventing the purification liquid from entering the limiting groove 501, thus improving the performance and service life of the reciprocating alarm mechanism.
[0073] For example, such as Figure 1 and Figure 4As shown, each liquid storage chamber 403 can be provided with two liquid outlets 406, and the two liquid outlets 406 of a liquid storage chamber 403 are arranged opposite to each other in the width direction of the mounting housing 4. It can be understood that the two liquid outlets 406 are arranged opposite to each other in the width direction of the mounting housing 4. Specifically, the two liquid outlets 406 are located on both sides of the mounting housing 4 in its width direction. In addition to spraying the purification liquid above the receiving part, that is, spraying the purification liquid above the receiving part on one side of the mounting housing 4 in its width direction, the purification liquid can also be sprayed on the other side of the mounting housing 4 in its width direction, that is, the side of the mounting housing 4 away from the welding joint of the long-distance pipeline. That is, the purification liquid is sprayed near and around the welding joint of the long-distance pipeline, which helps to purify harmful gases and fumes to a greater extent and further reduces the impact on the welding workers.
[0074] Furthermore, such as Figure 4 As shown, the inner surface of the bottom wall of the liquid storage chamber 403 is conical. Specifically, in the width direction of the mounting housing 4, the bottom wall of the liquid storage chamber 403 is inclined from the middle position to both sides. The height of the contact point between the bottom wall and the side wall of the liquid storage chamber 403 is lower than the height of the middle position of the bottom wall, thus forming a conical inner surface. It can be understood that the two liquid outlets 406 are respectively located on both sides of the liquid storage chamber 403. When the amount of purified liquid in the liquid storage chamber 403 is small, it is convenient for the purified liquid to move towards the liquid outlets 406 on both sides to achieve the purification of harmful gases and dust. Even if the amount of purified liquid in the liquid storage chamber 403 is small, the purification of harmful gases and dust can still be achieved, ensuring the stability of the purification device.
[0075] On the other hand, this embodiment also provides a welding mechanism for long-distance pipelines, which can purify harmful gases and fumes during the welding process, reducing the impact on welding workers and improving the work efficiency of welding workers on long-distance pipelines.
[0076] For example, such as Figures 1-2As shown, the long-distance pipeline welding mechanism includes an installation assembly, a welding device (not shown in the figure), and the aforementioned purification device. The welding device is used to weld the long-distance pipeline. The installation assembly includes a support base plate 1, support vertical plates 2, and a welding support plate 3. There are two support vertical plates 2. Both the support vertical plates 2 and the welding support plate 3 are located above the support base plate 1, and the welding support plate 3 is located between the two support vertical plates 2. The end of the welding support plate 3 away from the support base plate 1 has a receiving portion. The ends of the two support vertical plates 2 away from the support base plate 1 are each provided with an abutment portion. One long-distance pipeline is located in the receiving portion of one support vertical plate 2, and the welding end of one pipeline is located on the receiving portion of the welding support plate 3. The welding portions of the two long-distance pipelines are joined together. It can be understood that through the above-mentioned long-distance pipeline welding mechanism, harmful gases and fumes are purified during the welding process, reducing the impact on welding personnel and improving the work efficiency of welding long-distance pipelines. In this embodiment, both the receiving part and the supporting part are matched with the size of the pipeline to better support the long-distance pipeline.
[0077] It should be noted that the welding equipment is an existing welding equipment.
[0078] Furthermore, the long-distance pipeline welding mechanism also includes auxiliary support components (not shown in the figure). These auxiliary support components have auxiliary support grooves that match the shape of the long-distance pipeline. Multiple auxiliary support components are provided, each positioned on one of the two support vertical plates 2 away from the welding support plate 3. The long-distance pipeline is located within these auxiliary support grooves. These auxiliary support components provide auxiliary support for the two long-distance pipelines to be welded, thereby improving the stability of the pipelines. In other embodiments, the long-distance pipeline welding mechanism also includes auxiliary fixing components that cooperate with the support vertical plates 2. The support vertical plates 2 and the corresponding auxiliary fixing components together clamp the corresponding long-distance pipelines to fix them, further improving the stability of the pipelines and thus enhancing the welding effect.
[0079] Furthermore, this embodiment also provides a welding method for long-distance pipelines. By using the aforementioned long-distance pipeline welding mechanism, the work efficiency of workers welding long-distance pipelines is improved.
[0080] For example, the pipeline welding method includes the following steps: S1, placing the two long-distance pipelines to be welded on two supporting vertical plates 2 and a welding support plate, aligning the welding parts of the two pipelines; S2, controlling the drive unit 402 to operate, causing the purified liquid to spray out through the outlet 406; S3, performing long-distance pipeline welding. During the welding process, if the alarm light 509 alarms multiple times, purified liquid is added to the purification device until the long-distance pipeline welding is completed. It is understood that by setting the above steps, it can be ensured that during the welding of long-distance pipelines, the purified liquid sprayed out through the outlet 406 purifies the harmful gases and fumes generated during welding, reducing the impact on welding personnel. Furthermore, if the purified liquid is insufficient, the alarm light 509 can alarm multiple times to remind personnel to add purified liquid, ensuring continuous purification of harmful gases and fumes during the welding process, thus improving the work efficiency of personnel welding long-distance pipelines.
[0081] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. A purification device, applied to the welding of long-distance pipelines, wherein the welding joint of the long-distance pipeline is located in the receiving part of the installation component, characterized in that, The purification device includes two mounting housings (4) arranged opposite to each other. Both mounting housings (4) are installed above the mounting assembly and located on both sides of the receiving part. Multiple liquid storage chambers (403) are provided in the mounting housings (4) at intervals along the length of the mounting housings (4). Each of the multiple liquid storage chambers (403) is provided with a liquid outlet (406). The liquid outlet (406) is used to spray out the purification liquid, so that the purification liquid is sprayed above the receiving part to purify the harmful gases and fumes generated by the welding pipe.
2. The purification device according to claim 1, characterized in that, The mounting housing (4) is provided with a drive chamber (401) located below the liquid storage chamber (403). A drive component (402) is installed in the drive chamber (401). A rotating shaft (404) is installed at the output end of the drive component (402). The rotating shaft (404) is sealed through the liquid storage chamber (403) and extends to the top of the mounting housing (4).
3. The purification device according to claim 2, characterized in that, A blower (405) is mounted on one end of the rotating shaft (404) located outside the top of the mounting housing (4); The rotating shaft (404) located within the liquid storage cavity (403) is equipped with a rotating magnetic plate (4012), and the rotating shaft (404) can drive the rotating magnetic plate (4012) to rotate.
4. The purification device according to claim 3, characterized in that, An atomizing mesh plate (407) is provided at the liquid outlet (406) for atomizing the purified liquid; The inner wall of the liquid storage chamber (403) is connected to a telescopic rod (408). The movable end of the telescopic rod (408) is connected to a movable magnetic plate (409). The movable magnetic plate (409) is connected to a connecting rod (4010). The connecting rod (4010) and the telescopic rod (408) are located on the same side of the movable magnetic plate (409). The end of the connecting rod (4010) away from the movable magnetic plate (409) passes through the atomizing mesh plate (407) and extends to the outside of the mounting housing (4), and is equipped with a baffle plate (4011). The rotating magnetic plate (4012) has the same polarity as the movable magnetic plate (409). When the movable end of the telescopic rod (408) moves, it can drive the baffle plate (4011) to move closer to or away from the atomizing mesh plate (407).
5. The purification device according to claim 4, characterized in that, The telescopic rod (408) is located above the connecting rod (4010). In the height direction of the mounting housing (4), the connecting rod (4010) and the telescopic rod (408) are located at the two ends of the movable magnetic plate (409).
6. The purification device according to claim 4, characterized in that, The purification device also includes a reciprocating alarm mechanism, which includes a movable rod (5) installed on the upper side of the connecting rod (4010). A limiting groove (501) is formed on the top wall of the liquid outlet (406). A slidable limiting slider (504) is provided inside the limiting groove (501). An elastic element (503) is provided between the limiting slider (504) and the side wall of the limiting groove (501). The movable rod (5) can drive the limiting slider... The block (504) moves, and the limiting slider (504) is also connected to the sliding pressure plate (507). The top wall of the limiting slide groove (501) is provided with an alarm switch (508). When the liquid level in the storage chamber (403) reaches the preset liquid level, the moving rod (5) can drive the sliding pressure plate (507) to move below the alarm switch (508) and squeeze the alarm switch (508) so that the alarm switch (508) emits an alarm signal.
7. The purification device according to claim 6, characterized in that, The limiting slide groove (501) is fixedly connected to a limiting crossbar (502). The limiting slider (504) is slidably sleeved on the limiting crossbar (502). The limiting crossbar (502) is sleeved with the elastic element (503). The elastic element (503) is located between the limiting slider (504) and the groove wall of the limiting slide groove (501) on the side away from the baffle plate (4011). The limiting slider (504) is connected to a connecting plate (506) on the side facing the elastic element (503). The sliding pressure plate (507) is located at the end of the connecting plate (506) away from the limiting slider (504).
8. The purification device according to any one of claims 1-7, characterized in that, Each of the liquid storage chambers (403) is provided with two liquid outlets (406), and the two liquid outlets (406) of one liquid storage chamber (403) are arranged opposite to each other in the width direction of the mounting housing (4); The inner surface of the bottom wall of the liquid storage cavity (403) is conical.
9. A welding mechanism for long-distance pipelines, characterized in that, The device includes an installation assembly, a welding device, and a purification device as described in any one of claims 1-8. The welding device is used for welding long-distance pipelines. The installation assembly includes a support base plate (1), a support vertical plate (2), and a welding support plate (3). There are two support vertical plates (2). Both the support vertical plate (2) and the welding support plate (3) are located above the support base plate (1), and the welding support plate (3) is located between the two support vertical plates (2). The welding support plate (3) has a receiving portion at one end away from the support base plate (1). Both support vertical plates (2) have abutment portions at one end away from the support base plate (1). One long-distance pipeline is located at the abutment portion of one support vertical plate (2), and the welding end of one long-distance pipeline is located on the receiving portion of the welding support plate (3). The welding portions of the two long-distance pipelines are joined together.
10. A welding method for long-distance pipelines, characterized in that, Using the long-distance pipeline welding mechanism as described in claim 9, the pipeline welding method includes the following steps: S1. Place the two long-distance pipelines to be welded on the two support vertical plates (2) and the welding support plate, and align the welded parts of the two long-distance pipelines. S2. Control the drive unit (402) to operate, so that the purified liquid is sprayed out through the liquid outlet (406); S3. Perform long-distance pipeline welding. If the alarm light (509) alarms multiple times during the welding process, stop the welding work and turn off the drive unit (402). Then add purification liquid into the storage chamber (403) and continue to execute steps S2 to S3. If the alarm light (509) does not alarm multiple times during the welding process, continue welding the pipeline until the pipeline welding is completed.