Laser welding dust removal system

Abstract

The utility model discloses a dust removal system for laser welding, which has fewer potential safety hazards and higher safety performance during use and can meet the requirements of industrial production. The device comprises a dust removal unit, one side of the dust removal unit is connected with a fan through an exhaust pipe, the fan is connected with an exhaust detection system through a connecting pipe, and the other side of the dust removal unit is connected with a fire extinguishing system through a connecting pipe. Spark catchers are installed on the waste gas branch pipe and the main pipe, fire resisting dampers are arranged on pipelines between the spark catchers and the dust removal unit and between the draught fan and the dust removal unit, and the fire extinguishing system can control the spark catchers and the fire resisting dampers to work safely in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser welding dust removal technical field, concretely relates to a laser welding dust removal system. BACKGROUND

[0002] Laser welding is through high energy laser beam instantaneous melting material and forms the welding seam, has the advantages such as high precision, high efficiency, heat affected zone is small.But this process can produce metal particles, harmful gas and small oil droplet and other pollutants, if not handled can be greatly harmful to the work equipment and the health of staff, therefore the need of laser welding adds dust removal system auxiliary operation, the existing laser dust removal system uses more safety hazards, and the safety performance is lower, cannot satisfy the demand of industrial production. UTILITY MODEL CONTENTS

[0003] In view to the shortcomings that the existing laser dust removal system uses more safety hazards, and the safety performance is lower, cannot satisfy the demand of industrial production, the utility model provides a laser welding dust removal system, and the safety hazards are fewer when using, and the safety performance is higher, can satisfy the demand of industrial production.

[0004] The utility model provides the following technical scheme:

[0005] It includes dust removal unit, and one side of dust removal unit is connected with fan through exhaust pipe, and fan is connected with exhaust detection system through connecting pipe, and the other side is connected with fire extinguishing system through connecting pipe, and its characterized in that: at laser welding place, waste gas port matches welding station arrangement and distribution, and is communicated with dust removal unit through waste gas branch pipe and main pipe, and spark trap is installed on waste gas branch pipe and main pipe, and fire valve is arranged between spark trap, dust removal unit and fan and dust removal unit, and the safe operation of spark trap and fire valve can be controlled in time through fire extinguishing system.

[0006] Its further features are:

[0007] Dust removal unit includes dust removal box installed on support frame, and filter cartridge in dust removal box is arranged in inclined arrangement, and one end of filter cartridge is installed on inner wall of dust removal box through filter cartridge support, and the other end of filter cartridge is installed with venturi on end portion, and three-way pipe is inserted and installed on the wall of dust removal box close to venturi, and nozzle is installed on one end of three-way pipe.

[0008] Gas pocket is installed on the top of dust removal box, and electromagnetic pulse valve is arranged close to gas pocket, and one end of electromagnetic pulse valve is connected with gas pocket, and the other end of electromagnetic pulse valve is inserted into dust removal box and is sleeved with gas pipe sleeve, and pressure gauge is inserted and installed on the top of gas pocket.

[0009] The dust collecting box is provided with a dust collecting hopper at the lower end, a discharging vehicle is arranged below the dust collecting hopper, the end of the dust collecting hopper is connected with the discharging vehicle, and a discharging valve is arranged at the connection position.

[0010] In the above technical solution, the technical effects and advantages of the utility model are provided.

[0011] The setting of the spark catcher on the branch pipe and the main pipe can quickly capture fire information and transmit the information to the fire extinguishing system when high-temperature sparks are generated in the pipeline due to laser welding, the fire extinguishing system can extinguish the fire in the pipeline in time, the setting of the fireproof valve on the pipeline between the spark catcher and the dust removal unit and the fan and the dust removal unit, the system can cut off the waste gas circulation by closing the fireproof valve, the potential safety hazard is reduced, and the safety performance is high.

[0012] The setting of the gas pocket can store a certain amount of gas in the dust removal unit, the gas pocket can play a buffering role in gas transmission, the gas pressure is stabilized, damage to the system caused by pressure fluctuation is prevented, and the safety performance of the device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the dust removal unit structure of the utility model;

[0015] Figure 3 It is a side view of the dust removal unit structure of the utility model;

[0016] Figure 4 It is a partial structure sectional view of the dust removal unit of the utility model;

[0017] Figure 5 It is a partial structure sectional view of the dust removal unit of the utility model.

[0018] MARKS OF THE DRAWINGS:

[0019] 1, dust removal unit; 2, waste gas port; 3, waste gas branch pipe; 4, main pipe; 5, exhaust pipe; 6, fan; 7, spark catcher; 8, fireproof valve; 9, fire extinguishing system; 10, exhaust gas detection system; 11, dust collecting box; 12, support frame; 13, dust collecting hopper; 14, discharging vehicle; 15, filter cartridge; 16, filter cartridge support; 17, gas pocket; 18, pressure gauge; 19, electromagnetic pulse valve; 20, gas pipe sleeve; 21, tee joint; 22, nozzle; 23, air inlet; 24, air outlet; 25, laser welding area; 26, venturi. DETAILED DESCRIPTION

[0020] The utility model provides a kind of dust removal unit, which is suitable for laser welding area. Figure 1The utility model discloses a laser welding dust removal system, which comprises a dust removal unit 1, one side of the dust removal unit 1 is connected with a fan 6 through an exhaust pipe 5, the fan 6 is connected with an exhaust detection system 10 through a connecting pipe, the other side of the dust removal unit 1 is connected with a fire extinguishing system 9 through a connecting pipe, at the laser welding position, waste gas outlets 2 are arranged and distributed in the welding position, and are communicated with the dust removal unit 1 through waste gas branch pipes 3 and a main pipe 4, spark arresters 7 are arranged on the waste gas branch pipes 3 and the main pipe 4, fireproof valves 8 are arranged on the spark arresters 7, the dust removal unit 1 and the fan 6, and the fire extinguishing system can control the safe operation of the spark arresters 7 and the fireproof valves 8 in time.

[0021] See Figure 2 , Figure 3 , Figure 4 The dust removal unit 1 comprises a dust removal box 11 installed on a support frame, filter cartridges 15 in the dust removal box 11 are arranged in an inclined manner, one end of the filter cartridges 15 is installed on the inner wall of the dust removal box 11 through a filter cartridge support 16, and a venturi tube 26 is installed at the other end of the filter cartridges 15 and extends out of the end portion; a three-way pipe 21 is inserted and installed on the wall of the dust removal box 11 close to the venturi tube 26, and a nozzle 22 is installed at one end of the three-way pipe 21.

[0022] See Figure 2 , Figure 5 A gas pocket 17 is installed at the top of the dust removal box 11, an electromagnetic pulse valve 19 is arranged close to the gas pocket 17, one end of the electromagnetic pulse valve 19 is connected with the gas pocket 17, the other end of the electromagnetic pulse valve 19 is inserted into the dust removal box 11 and is sleeved with a gas pipe sleeve 20, and a pressure gauge 18 is inserted and installed at the top of the gas pocket 17.

[0023] See Figure 4 A dust collecting hopper 13 is installed at the lower end of the dust removal box 11, a discharging trolley 14 is arranged below the dust collecting hopper 13, and a discharging valve is arranged at the connection between the dust collecting hopper 13 and the discharging trolley 14.

[0024] See Figure 2 , Figure 3 An air outlet 24 is installed at the rear of the dust removal box 11, and an air inlet 23 is installed at the lower part of the dust removal box 11.

[0025] Working principle of the utility model:

[0026] When the utility model is used, firstly, the staff normally works in the laser welding area 25, the waste gas generated by the staff enters the dust removal unit 11 through the air inlet 23 along the pipeline from the waste gas outlet 2, the filter cartridges 15 in the dust removal box 11 clean and filter the dust and particulate matters in the waste gas, at this time, the discharging valve is opened, the dust and particulate matters enter the discharging trolley 14 from the dust collecting hopper 13, and the filtered waste gas enters the fan 6 along the air outlet 24, and then is sent into the exhaust detection system by the fan 6, and can be discharged to the outside after being detected to be qualified.

[0027] When the laser welding works, high temperature sparks and flammable gas may be generated. At this time, the spark trap 7 will immediately capture information and transmit it to the fire extinguishing system 9. The common fire extinguishing system 9 includes releasing carbon dioxide for pipeline fire extinguishing. When the fire is more serious, the fireproof valve 8 on the main pipe 4 and the exhaust pipe 5 is opened. The system can automatically shut down and cut off the exhaust gas flow, avoid fire damage to the equipment, reduce potential safety hazards, and has high safety performance.

Claims

1. A laser welding dust removal system, comprising a dust removal unit, wherein one side of the dust removal unit is connected to a fan via an exhaust pipe, the fan is connected to an exhaust detection system via a connecting pipe, and the other side is connected to a fire extinguishing system via a connecting pipe, characterized in that: At the laser welding point, the exhaust gas outlets are arranged to match the welding stations and are connected to the dust removal unit through exhaust gas branch pipes and the main pipe. Spark arresters are installed on both the exhaust gas branch pipes and the main pipe. Fire dampers are installed on the pipelines between the spark arresters and the dust removal unit, as well as between the fan and the dust removal unit. The fire extinguishing system can promptly control the safe operation of the spark arresters and fire dampers.

2. The laser welding dust removal system according to claim 1, characterized in that: The dust removal unit includes a dust collection box installed on a support frame. The filter cartridges inside the dust collection box are arranged at an angle. One end of the filter cartridge is installed on the inner wall of the dust collection box through a filter cartridge bracket, and the other end is fitted with a venturi tube. Near the venturi tube, a tee is inserted and installed on the wall of the dust collection box, and a nozzle is installed at one end of the tee.

3. The laser welding dust removal system according to claim 2, characterized in that: An air tank is installed on the top of the dust collector, and an electromagnetic pulse valve is located near the air tank. One end of the electromagnetic pulse valve is connected to the air tank, and the other end is inserted into the dust collector and fitted with an air pipe sleeve. A pressure gauge is inserted and installed on the top of the air tank.

4. The laser welding dust removal system according to claim 3, characterized in that: A dust collection hopper is installed at the lower end of the dust collection box, and an unloading trolley is located below the dust collection hopper. The end of the dust collection hopper is connected to the unloading trolley, and an unloading valve is provided at the connection.

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