Centralized cooling system of welded steel pipe forming welding machine

Abstract

The utility model discloses a centralized cooling system of a welded steel pipe forming welding machine, which comprises a box body and an air circulating pipeline, and a welding machine storage cavity, a first through hole, an air pre-cooling cavity and an air cooling device which are sequentially communicated along the air flow direction are arranged in the box body. And the air outlet of the air cooling device is communicated with the air inlet of the welding machine storage cavity through the air circulating pipeline. According to the centralized cooling system of the welding machine for forming the welded steel pipes, the welding machine can be cooled in a centralized mode, management is convenient, the cooling effect is good, energy consumption can be saved, and the adverse effect of dust on the welding machine is reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding machine cooling, and in particular to a centralized cooling system for a welding machine for forming welded steel pipes. Background Technology

[0002] The manufacturing process of stainless steel pipes includes welding the joints of stainless steel sheets bent into tubular shapes. Because there are multiple production lines, each requiring welding torches, the number of welding machines is relatively large. Welding machines experience rapid temperature increases during prolonged operation, necessitating continuous cooling to ensure stable performance. Currently, each welding machine is individually air-cooled, which is inconvenient for personnel to quickly monitor the temperature of each machine. Furthermore, since the welding machines are exposed to the production environment, which contains a significant amount of dust, dust can easily enter and damage the machines. Utility Model Content

[0003] The purpose of this invention is to provide a centralized cooling system for a welded steel pipe forming welding machine, which can centrally cool the welding machine, making it convenient to manage, providing good cooling effect, saving energy, and reducing the adverse effects of dust on the welding machine.

[0004] To achieve the above objectives, this utility model provides a centralized cooling system for a welded steel pipe forming welding machine, including a housing and an air circulation pipe. The housing is provided with a welding machine storage chamber, a first through hole, an air pre-cooling chamber, and an air cooling device that are sequentially connected along the air flow direction. The air outlet of the air cooling device and the air inlet of the welding machine storage chamber are connected through the air circulation pipe.

[0005] As a further improvement of this utility model, the air cooling device includes a housing and a coolant pipe. The top of the housing is provided with a second through hole, and the lower end of the housing is the air outlet of the air cooling device. The coolant pipe includes multiple alternating straight pipes and curved pipes. The straight pipes are arranged horizontally inside the housing, and the curved pipes extend to the outside of the housing and are located in the air pre-cooling chamber. The inlet and outlet of the coolant pipe are both located outside the housing.

[0006] As a further improvement of this utility model, the air circulation duct includes a first duct and a second duct arranged sequentially along the airflow direction. The input end of the first duct is connected to the outside and is equipped with a valve. The first duct and the second duct are connected by an air pump. The output end of the second duct is connected to the air inlet of the welding machine storage chamber. The air circulation duct also includes a third duct. One end of the third duct is connected to the air outlet of the air cooling device, and the other end is connected to the first duct.

[0007] As a further improvement of this utility model, the housing is provided with a pressure regulating valve that communicates with the air precooling chamber.

[0008] As a further improvement of this utility model, a filter is connected to the second pipe.

[0009] As a further improvement of this utility model, a dryer is connected in the middle of the third pipe; the dryer includes a drying box, and a removable drawer is provided inside the drying box, with a desiccant inside the drawer.

[0010] As a further improvement of this utility model, a cold air diffusion structure is provided between the air circulation pipe and the air inlet of the welding machine storage chamber; the welding machine is placed in the welding machine storage chamber, and the connecting pipeline between the welding machine and the welding torch extends out of the box; a cold air channel is formed between the side walls for heat dissipation on the front and rear sides of the welding machine and the inner wall of the welding machine storage chamber; the air outlet direction of the cold air diffusion structure is towards the cold air channel.

[0011] As a further improvement of this utility model, the cold air diffusion structure includes an air guide hood whose inner cavity gradually increases in size along the direction of cold air flow. The input end of the air guide hood is connected to the air circulation pipe, and the output end of the air guide hood is provided with an end plate. The end plate is provided with multiple air blowing holes, and an air guide plate is provided on one side of the output end of the air blowing holes, with the air guide plate facing the cold air channel.

[0012] Beneficial effects

[0013] Compared with the prior art, the advantages of the centralized cooling system of the welded steel pipe forming welding machine of this utility model are:

[0014] 1. Air from the air circulation duct first enters the welding machine storage chamber to exchange heat with the welding machine. Then, the air enters the air pre-cooling chamber for pre-cooling, and then enters the air cooling device for further heat reduction. The cooled air then returns to the welding machine storage chamber through the air circulation duct to contact the welding machine again. This method allows the welding machine to be air-cooled in a relatively enclosed space, resulting in good cooling effect, high efficiency, and convenient unified management of multiple welding machines. Furthermore, it reduces the welding machine's exposure to dust, thus extending its service life.

[0015] 2. In the air cooling device, hot air with a higher temperature enters the air pre-cooling chamber and comes into contact with the bend in the coolant pipe for pre-cooling. The air continues to enter the inner cavity of the outer shell through the second through-hole at the top of the outer shell and comes into contact with the straight pipe of the coolant pipe for further cooling. This method can extend the movement path of the air in the chamber and prolong the heat exchange time between the hot air and the coolant pipe.

[0016] 3. The inlet of the first duct is connected to the outside and is equipped with a valve. When fresh air needs to be introduced into the air circulation duct, the valve can be opened to allow fresh air to be drawn in. When the air pressure inside the chamber rises to a certain level, the pressure regulating valve of the air precooling chamber opens to expel some air, thereby maintaining the air pressure inside the chamber within a certain range.

[0017] 4. The filter on the second pipeline can filter out dust, thus preventing dust from coming into contact with the welding machine.

[0018] 5. When the air cooling device cools the air, it may cause water vapor in the air to condense. The dryer in the middle of the third pipe can absorb the moisture in the passing air through the desiccant, ensuring that the cold air in contact with the welding machine is dry and preventing the welding machine from coming into contact with humid air.

[0019] 6. The cold air diffusion structure can guide the cold air to the cold air channel between the heat dissipation side walls on the front and back sides of the welding machine and the inner wall of the welding machine storage cavity, which helps to quickly remove the heat from the front and back sides of the welding machine, thereby improving the cooling efficiency.

[0020] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a front sectional view of the centralized cooling system of a welded steel pipe forming welding machine.

[0023] Figure 2 This is a top sectional view of the welding machine storage chamber and the cold air diffusion structure. Detailed Implementation

[0024] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0025] Example

[0026] The specific embodiments of this utility model are as follows: Figures 1 to 2 As shown, a centralized cooling system for a welded steel pipe forming welding machine includes a housing 1 and an air circulation pipe. The housing 1 contains a welding machine storage chamber 11, a first through-hole 13, an air pre-cooling chamber 12, and an air cooling device 3, which are sequentially connected along the airflow direction. The air outlet of the air cooling device 3 is connected to the air inlet of the welding machine storage chamber 11 via the air circulation pipe. The air cooling device 3 is located within the air pre-cooling chamber 12.

[0027] In this embodiment, the housing 1 has two welding machine storage cavities 11 arranged side by side, and the right side of each of the two welding machine storage cavities 11 is connected to one side of the air precooling cavity 12 through multiple first through holes 13.

[0028] The air cooling device 3 includes a housing 31 and a coolant pipe 33. The top of the housing 31 has a second through-hole 32, and the lower end of the housing 31 is the air outlet of the air cooling device 3. The coolant pipe 33 includes multiple alternating straight pipes 331 and bent pipes 332, with the length of the bent pipes 332 being less than the length of the straight pipes 331. The straight pipes 331 are arranged laterally inside the housing 31, and the bent pipes 332 extend outside the housing 31 and are located inside the air pre-cooling chamber 12. Both the inlet and outlet ends of the coolant pipe 33 are located outside the housing 1, and coolant is supplied to the coolant pipe 33 by a coolant delivery pump (not shown in the figure).

[0029] The air circulation duct includes a first duct 21 and a second duct 22 arranged sequentially along the airflow direction. The inlet end of the first duct 21 is connected to the outside and is equipped with a valve 25. The first duct 21 and the second duct 22 are connected by an air pump 26. The outlet end of the second duct 22 is connected to the air inlet of the welding machine storage chamber 11. The air circulation duct also includes a third duct 24, one end of which is connected to the air outlet of the air cooling device 3, and the other end is connected to the first duct 21. In this embodiment, the air pump 26 and the third duct 24 are both located in the lower part of the housing 1. The welding machine storage chamber 11 and the air pre-cooling chamber 12 are both located in the upper part of the housing 1.

[0030] The housing 1 is equipped with a pressure regulating valve 5 that is connected to the air pre-cooling chamber 12. A filter 23 is connected to the second pipe 22, and the filter 23 contains a filter screen for filtering dust.

[0031] The third pipe 24 is connected to a dryer 6 in the middle. The dryer 6 includes a drying box with a removable drawer inside. The drawer contains desiccant and can be pulled out from the side wall of the box 1 for easy replacement of the desiccant.

[0032] A cold air diffusion structure 7 is provided between the air circulation duct and the air inlet of each welding machine storage chamber 11. A welding machine 8 is placed in the welding machine storage chamber 11, and the connecting pipe 81 between the welding machine 8 and the welding torch extends outside the housing 1. A cold air channel 14 is formed between the heat dissipation sidewalls of the welding machine 8 at the front and rear and the inner wall of the welding machine storage chamber 11. The air outlet direction of the cold air diffusion structure 7 is towards the cold air channel 14.

[0033] The cold air diffusion structure 7 includes an air guide shroud 71 whose inner cavity gradually increases in size along the direction of cold air flow. The input end of the air guide shroud 71 is connected to the second pipe 22 of the air circulation pipe, and the output end of the air guide shroud 71 is provided with an end plate 72, which serves as the side wall of the welding machine storage cavity 11 away from the first through hole 13. The end plate 72 is provided with multiple air blowing holes 73. In this embodiment, the air blowing holes 73 are strip-shaped and vertically arranged. Each air blowing hole 73 has an air guide vane 74 on one side of its output end, and each air guide vane 74 faces the adjacent cold air channel 14, such as... Figure 2 As shown.

[0034] The box 1 has a door on the side wall corresponding to the welding machine storage cavity 11, which facilitates the movement of the welding machine 8 in and out when the door is opened.

[0035] During operation, the air in the air circulation pipe first enters the welding machine storage chamber 11 and exchanges heat with the welding machine 8. Then, the air enters the air pre-cooling chamber 12 and comes into contact with the bend 332 of the coolant pipe 33 for pre-cooling. The air continues to enter the inner cavity of the outer shell 31 through the second through hole 32 at the top of the outer shell 31 and comes into contact with the straight pipe 331 of the coolant pipe 33 for further cooling. The low-temperature air returns to the welding machine storage chamber 11 through the air circulation pipe and comes into contact with the welding machine 8.

[0036] When fresh air needs to be introduced into the air circulation duct, valve 25 can be opened to draw fresh air into the duct. When the air pressure inside the housing 1 rises to a certain level, the pressure regulating valve 5 of the air pre-cooling chamber opens, expelling some air and thus maintaining the air pressure inside the housing 1 within a certain range. After the fresh air pressure inside the housing 1 stabilizes, valve 25 closes.

[0037] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. A centralized cooling system for a welded steel pipe forming welding machine, characterized in that, It includes a housing (1) and an air circulation pipe. The housing (1) is provided with a welding machine storage chamber (11), a first through hole (13), an air pre-cooling chamber (12) and an air cooling device (3) connected in sequence along the air flow direction. The air outlet of the air cooling device (3) is connected to the air inlet of the welding machine storage chamber (11) through the air circulation pipe.

2. The centralized cooling system for a welded steel pipe forming welding machine according to claim 1, characterized in that, The air cooling device (3) includes a housing (31) and a coolant pipe (33). The top of the housing (31) is provided with a second through hole (32), and the lower end of the housing (31) is the air outlet of the air cooling device (3). The coolant pipe (33) includes multiple alternating straight pipes (331) and bent pipes (332). The straight pipes (331) are arranged horizontally inside the housing (31), and the bent pipes (332) extend to the outside of the housing (31) and are located inside the air precooling chamber (12). The input end and output end of the coolant pipe (33) are both located outside the housing (1).

3. The centralized cooling system for a welded steel pipe forming welding machine according to claim 1, characterized in that, The air circulation duct includes a first duct (21) and a second duct (22) arranged sequentially along the airflow direction. The input end of the first duct (21) is connected to the outside and is equipped with a valve (25). The first duct (21) and the second duct (22) are connected by an air pump (26). The output end of the second duct (22) is connected to the air inlet of the welding machine storage chamber (11). The air circulation duct also includes a third duct (24). One end of the third duct (24) is connected to the air outlet of the air cooling device (3), and the other end is connected to the first duct (21).

4. The centralized cooling system for a welded steel pipe forming welding machine according to claim 3, characterized in that, The housing (1) is equipped with a pressure regulating valve (5) that is connected to the air precooling chamber (12).

5. The centralized cooling system for a welded steel pipe forming welding machine according to claim 3, characterized in that, A filter (23) is connected to the second pipe (22).

6. The centralized cooling system for a welded steel pipe forming welding machine according to claim 3, characterized in that, The third pipe (24) is connected to a dryer (6) in the middle; the dryer (6) includes a drying box, which has a removable drawer containing a desiccant.

7. The centralized cooling system for a welded steel pipe forming welding machine according to claim 1, characterized in that, A cold air diffusion structure (7) is provided between the air circulation pipe and the air inlet of the welding machine storage chamber (11); a welding machine (8) is placed in the welding machine storage chamber (11), and the connecting pipe (81) between the welding machine (8) and the welding gun extends out to the outside of the box (1); a cold air channel (14) is formed between the side walls for heat dissipation on the front and rear sides of the welding machine (8) and the inner wall of the welding machine storage chamber (11); the air outlet direction of the cold air diffusion structure (7) is towards the cold air channel (14).

8. The centralized cooling system for a welded steel pipe forming welding machine according to claim 7, characterized in that, The cold air diffusion structure (7) includes an air guide hood (71) whose inner cavity gradually increases along the direction of cold air flow. The input end of the air guide hood (71) is connected to the air circulation pipe. The output end of the air guide hood (71) is provided with an end plate (72). The end plate (72) is provided with a plurality of air blowing holes (73). The output end of the air blowing holes (73) is provided with an air guide plate (74) on one side. The air guide plate (74) faces the cold air channel (14).

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