Laser welding smoke purification and waste heat recovery integrated device

Abstract

The utility model provides a laser welding smoke purification and waste heat recovery integrated device which comprises a box body, and an independent heat storage cavity is formed in the box body; the heat storage cavity is located in the middle of the box body, an air inlet cavity is formed between the top and the box body, and an exhaust cavity is formed between the bottom and the box body. The air inlet cavity is connected with the exhaust cavity through an air channel; the air channel penetrates through the heat storage cavity; an exhaust pipeline and a dust collection box are respectively arranged in the exhaust cavity; the exhaust pipeline is fixedly mounted at the bottom of the box body, and a corresponding butt joint is arranged corresponding to the air channel; the dust collection box is connected between the air channel and the butt joint, and a filter screen is arranged in the dust collection box. The exhaust pipeline is arranged at the bottom of the box body and connected with the air channel in a matched mode, and negative pressure can be formed in the air inlet cavity only by connecting the exhaust pipeline with a high-pressure air source, so that smoke dust is sucked in; after smoke enters the air inlet cavity, the smoke needs to enter the exhaust pipeline through the air channel, the smoke exchanges heat with a medium in the heat storage cavity in the process, and meanwhile the filter screen in the dust collection box can filter the smoke.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser welding, in particular to a laser welding smoke purification and waste heat recovery integrated device. BACKGROUND

[0002] Laser welding is a kind of high-efficiency precision welding method using a high-energy-density laser beam as a heat source; laser welding is one of important aspects of application of laser material processing technology, but the existing laser welding produces certain smoke during use, which causes the air and environment around the laser welding device to be poor, and affects the health of operators and the visibility during operation, and is not conducive to improving the quality and efficiency of laser welding.

[0003] At present, the smoke is only purified, and the heat carried by the smoke cannot be effectively utilized, so the above problems need to be solved. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is expected to provide a laser welding smoke purification and waste heat recovery integrated device.

[0005] The application provides a laser welding smoke purification and waste heat recovery integrated device, which comprises

[0006] A box body, an independent heat storage cavity is arranged in the box body;

[0007] The heat storage cavity is located at the middle of the box body, and an air inlet cavity is formed between the top of the heat storage cavity and the box body, and an air outlet cavity is formed between the bottom of the heat storage cavity and the box body;

[0008] The air inlet cavity and the air outlet cavity are connected through an air channel;

[0009] The air channel penetrates through the heat storage cavity and is used for heat exchange with the heat storage cavity;

[0010] An air outlet pipeline and a dust collection box are arranged in the air outlet cavity respectively;

[0011] The air outlet pipeline is fixedly installed at the bottom of the box body, and a corresponding butt joint is arranged at the air channel;

[0012] The dust collection box is connected between the air channel and the butt joint, and a filter screen is arranged in the dust collection box.

[0013] Further,

[0014] The heat storage cavity is provided with a partition plate between the air inlet cavity and the air outlet cavity respectively;

[0015] The two partition plates are parallel to each other and are fixedly connected to the box body respectively.

[0016] Further,

[0017] The dust collecting box is rectangular, and the top is an open structure, comprising three side plates of the same height and a relatively high baffle plate;

[0018] One side of the box body corresponds to the dust collecting box and is provided with a matching plug-in interface;

[0019] The width of the plug-in interface matches the distance between the two side plates, and the height matches the height of the side plate.

[0020] Further,

[0021] The baffle plate is further provided with a first sealing strip;

[0022] The first sealing strip is located on the side of the baffle plate close to the side plate, and is used to form a seal with the box body.

[0023] Further,

[0024] The partition plate is provided with a corresponding positioning plate corresponding to the side plate;

[0025] The positioning plate is provided with a second sealing strip corresponding to the side plate, which is used to form a seal with the side plate.

[0026] Further,

[0027] The side plate is provided with a limiting support corresponding to the filter screen;

[0028] The limiting support is located in the interior of the dust collecting box, and is fixedly installed at the middle of the side plate in the vertical direction, and is used to position and support the filter screen.

[0029] Further,

[0030] The side plate is provided with a matching connecting assembly corresponding to the butt joint;

[0031] The connecting assembly comprises a connecting head fixedly installed on the side plate and a connecting sleeve sleeved on the connecting head;

[0032] The connecting head is T-shaped, located on the side of the side plate away from the baffle plate, and fixedly connected with the side plate through an end with a relatively small diameter.

[0033] Further,

[0034] The connecting head is provided with a coaxial through hole in the interior;

[0035] The side plate is provided with a matching through hole corresponding to the through hole.

[0036] Further,

[0037] The inner part of the connecting sleeve is provided with a matching stepped hole corresponding to the connecting head, and the end with larger diameter is provided with an internal thread;

[0038] The connecting head is provided with a matching external thread corresponding to the internal thread, for threaded connection with the connecting sleeve.

[0039] Further,

[0040] One end of the exhaust duct is connected with a high-pressure air source, and the other end extends to the outside of the box body.

[0041] The application has the advantages and positive effects that:

[0042] The technical solution sets the exhaust duct at the bottom of the box body, cooperates with the connection with the air duct, can form a negative pressure generator, only needs to connect the exhaust duct with the high-pressure air source, can form negative pressure in the air inlet cavity, so as to suck in the smoke dust; the smoke dust enters the air inlet cavity, needs to enter the exhaust duct through the air duct, the process will exchange heat with the medium in the heat storage cavity, so as to realize heat recovery, at the same time, the filter screen in the dust collecting box also filters the smoke dust, further realizes smoke gas purification. BRIEF DESCRIPTION OF DRAWINGS

[0043] Fig. 1 The structure schematic view of the laser welding smoke dust purification and waste heat recovery integrated device provided by the embodiment of the application is shown;

[0044] Fig. 2 The structure schematic view of the dust collecting box of the laser welding smoke dust purification and waste heat recovery integrated device provided by the embodiment of the application is shown.

[0045] The text annotations in the figure are as follows: 100-box body; 110-heat storage cavity; 111-separation plate; 112-positioning plate; 120-air inlet cavity; 130-exhaust cavity; 131-exhaust duct; 132-connecting head; 140-air duct; 150-dust collecting box; 151-filter screen; 152-connecting head; 153-connecting sleeve. DETAILED DESCRIPTION

[0046] In order to make the person skilled in the art better understand the technical solution of the application, the application will be described in detail below in combination with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the application.

[0047] Please refer to Figs. 1-2The embodiment provides a laser welding smoke purification and waste heat recovery integrated device, which comprises a box body 100, an independent heat storage cavity 110 is arranged in the box body 100; the heat storage cavity 110 is located at the middle of the box body 100, an air inlet cavity 120 is formed between the top of the heat storage cavity 110 and the box body 100, and an air outlet cavity 130 is formed between the bottom of the heat storage cavity 110 and the box body 100; the air inlet cavity 120 and the air outlet cavity 130 are connected through an air channel 140; the air channel 140 penetrates through the heat storage cavity 110 and is used for heat exchange with the heat storage cavity 110; an air outlet pipeline 131 and a dust collection box 150 are arranged in the air outlet cavity 130 respectively; the air outlet pipeline 131 is fixedly installed at the bottom of the box body 100 and is provided with a corresponding butt joint 132 corresponding to the air channel 140; the dust collection box 150 is connected between the air channel 140 and the butt joint 132 and is internally provided with a filter screen 151.

[0048] In the embodiment, the air inlet cavity 120, the heat storage cavity 110 and the air outlet cavity 130 are arranged in the box body 100 from top to bottom; the heat storage cavity 110 is filled with water with large specific heat capacity as a heat storage medium, the cost of the water is low, and the heat transfer performance of the water is good; the space sizes of the air inlet cavity 120 and the air outlet cavity 130 are designed according to the amount of smoke generated by laser welding in the actual use scene, so that enough space is ensured for the smoke to flow and be treated in the cavities.

[0049] In the embodiment, the inner wall of the air channel 140 is treated with a smooth ceramic coating, so that the adhesion of the smoke in the air channel is reduced, and the heat exchange efficiency is improved; the air outlet pipeline 131 is made of a PVC pipe, which has good chemical corrosion resistance and low cost and can meet the exhaust demand of the device; the dust collection box 150 and the filter screen 151 are designed in a structure that is easy to disassemble and clean, so that the later maintenance is facilitated.

[0050] In a preferred embodiment, the heat storage cavity 110 is provided with a partition plate 111 between the air inlet cavity 120 and the air outlet cavity 130; the two partition plates 111 are parallel to each other and are fixedly connected with the box body 100.

[0051] In the embodiment, the partition plate 111 is fixedly connected with the inner wall of the box body 100 in a welding manner, so that the space in the box body 100 is divided into the air inlet cavity 120, the heat storage cavity 110 and the air outlet cavity 130 from top to bottom.

[0052] In a preferred embodiment, the dust collection box 150 is rectangular, the top of the dust collection box 150 is of an open structure, the dust collection box 150 comprises three side plates with the same height and a baffle with a relatively high height, one side of the box body 100 is provided with a matching plug-in interface corresponding to the dust collection box 150, the width of the plug-in interface matches the distance between the two side plates, and the height of the plug-in interface matches the height of the side plates.

[0053] In this embodiment, the number of dust collection boxes 150 is four, and the number of air ducts 140 is also four; two dust collection boxes 150 form a group and are located on both sides of the exhaust duct 131.

[0054] In this embodiment, the width of the insertion port matches the width of the dust collection box 150, and the height matches the height of the side plate; when the dust collection box 150 is inserted, the part of the baffle that protrudes above the insertion port abuts against the outer wall of the cabinet 100, thereby forming a limit.

[0055] In a preferred embodiment, a first sealing strip is further arranged on the baffle; the first sealing strip is located on the side of the baffle close to the side plate and is used to form a seal with the cabinet 100.

[0056] In this embodiment, the first sealing strip is arranged on the baffle, and when the dust collection box 150 is inserted, the baffle will press the first sealing strip against the side wall of the cabinet 100, thereby forming a seal.

[0057] In a preferred embodiment, a corresponding positioning plate 112 is arranged on the partition plate 111 corresponding to the side plate; a second sealing strip is arranged on the positioning plate 112 corresponding to the side plate and is used to form a seal with the side plate.

[0058] In this embodiment, a matching positioning plate 112 is arranged on the partition plate 111 at the outer side of the side plate at the bottom of the heat storage cavity 110; at the same time, a second sealing strip is further arranged on the positioning plate 112 corresponding to the side plate, thereby forming a seal between the dust collection box 150 and forming a closed channel between the air duct 140 and the exhaust duct 131.

[0059] In a preferred embodiment, a limiting support is arranged on the side plate corresponding to the filter screen 151; the limiting support is located inside the dust collection box 150, is fixedly installed at the middle of the side plate in the vertical direction, and is used to position and support the filter screen 151.

[0060] In this embodiment, the limiting support is an L-shaped stainless steel support, which is fixedly installed at the middle of the side plate in the vertical direction by welding; the welding position is accurately measured to ensure the levelness and perpendicularity of the limiting support; when the filter screen 151 is installed, it is directly placed on the limiting support, which is convenient and fast and facilitates the replacement of the filter screen 151 in the later period.

[0061] In a preferred embodiment, a matching connecting assembly is arranged on the side plate corresponding to the butt joint 132; the connecting assembly includes a connecting head 152 fixedly installed on the side plate and a connecting sleeve 153 sleeved on the connecting head 152; the connecting head 152 is T-shaped, is located on the side of the side plate away from the baffle, and is fixedly connected with the side plate through an end with a relatively small diameter.

[0062] In a preferred embodiment, the inside of the connecting head 152 is provided with a coaxial through hole; and the side plate is provided with a matching through hole corresponding to the through hole.

[0063] In this embodiment, the smaller end of the connecting head 152 is fixedly connected to the side plate by welding; and the through hole in the connecting head 152 matches the pipe diameter of the air duct 140 and the counter head 132, so as to ensure smooth airflow.

[0064] In a preferred embodiment, the inside of the connecting sleeve 153 is provided with a matching stepped hole corresponding to the connecting head 152, and the larger end is provided with an internal thread; and the counter head 132 is provided with a matching external thread corresponding to the internal thread, for threaded connection with the connecting sleeve 153.

[0065] In this embodiment, the connecting sleeve 153 is threaded with the counter head 132, which can effectively tighten the connecting head 152 on the counter head 132 to form a seal.

[0066] In a preferred embodiment, one end of the exhaust duct 131 is connected to a high-pressure gas source, and the other end extends to the outside of the box body 100.

[0067] The principles and implementation modes of the present application are described by using specific examples in this paper, and the above examples are only used to help understand the method and its core idea. The above description is only the preferred embodiment of the present application. It should be pointed out that due to the limitation of language expression, there are infinite specific structures, and for ordinary technical personnel in this technical field, without departing from the principle of the present application, some improvements, refinements or changes can be made, and the above technical features can be combined in a proper way; these improvements, refinements, changes or combinations, or the application of the inventive concept and technical scheme to other fields without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A laser welding fume purification and waste heat recovery integrated device, characterized in that, The utility model relates to a laser welding smoke purification and waste heat recovery integrated device, including The box (100) is equipped with independent heat storage cavity (110) in the inside, The heat storage cavity (110) is located at the middle of the box (100), and the top and the box (100) form the air inlet cavity (120), and the bottom and the box (100) form the exhaust cavity (130), The air inlet cavity (120) and exhaust cavity (130) are connected by air passage (140), The air passage (140) penetrates the heat storage cavity (110) and is used for heat exchange with the heat storage cavity (110), The exhaust cavity (130) is equipped with exhaust duct (131) and dust collecting box (150) respectively, The exhaust duct (131) is fixedly installed at the bottom of the box (100), and the corresponding butt joint (132) is arranged corresponding to the air passage (140), The dust collecting box (150) is connected between the air passage (140) and the butt joint (132), and the inside is equipped with filter screen (151).

2. The laser welding smoke purification and waste heat recovery integrated device according to claim 1, wherein The heat storage cavity (110) is respectively provided with a partition (111) between the air inlet cavity (120) and the exhaust cavity (130); The two partitions (111) are parallel to each other and are fixedly connected to the box (100).

3. The laser welding smoke purification and waste heat recovery integrated device according to claim 2, wherein The dust collecting box (150) is rectangular, the top is an open structure, and includes three side plates of the same height and a baffle of a relatively higher height; A matching plug-in interface is arranged on one side of the box (100) corresponding to the dust collecting box (150); The width of the plug-in interface matches the distance between the two side plates, and the height matches the height of the side plates.

4. The laser welding smoke purification and waste heat recovery integrated device according to claim 3, wherein A first sealing strip is further arranged on the baffle; The first sealing strip is located on the side of the baffle close to the side plate, and is used to form a seal between the box (100).

5. The laser welding smoke purification and waste heat recovery integrated device according to claim 3, wherein A corresponding positioning plate (112) is arranged on the partition (111) corresponding to the side plate; A second sealing strip is arranged on the positioning plate (112) corresponding to the side plate, and is used to form a seal between the side plate.

6. The laser welding smoke purification and waste heat recovery integrated device according to claim 3, wherein A limiting support is arranged on the side plate corresponding to the filter screen (151); The limiting support is located in the inside of the dust collecting box (150), is fixedly installed at the middle of the side plate in the vertical direction, and is used to position and support the filter screen (151).

7. The laser welding smoke purification and waste heat recovery integrated device according to claim 6, wherein A matching connecting assembly is arranged on the side plate corresponding to the butt joint (132); The connecting assembly comprises a connecting head (152) fixedly installed on the side plate and a connecting sleeve (153) sleeved on the connecting head (152); The connecting head (152) is T-shaped, located on the side of the side plate away from the baffle, and fixedly connected with the side plate through one end with a relatively small diameter. 8.The laser welding smoke purification and waste heat recovery integrated device according to claim 7, characterized in that, The connecting head (152) is internally provided with a coaxial through hole; The side plate is provided with a matching through hole corresponding to the through hole. 9.The laser welding smoke purification and waste heat recovery integrated device according to claim 7, characterized in that, The connecting sleeve (153) is internally provided with a matching stepped hole corresponding to the connecting head (152), and one end with a relatively large diameter is internally threaded; The abutting head (132) is externally threaded corresponding to the internal thread, used for threaded connection with the connecting sleeve (153). 10.The laser welding smoke purification and waste heat recovery integrated device according to claim 1, characterized in that, One end of the exhaust pipeline (131) is connected with a high-pressure gas source, and the other end extends to the outside of the box body (100).

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