Welding heat preservation device for stainless steel forgings

Abstract

The welding heat preservation device is characterized in that the welding heat preservation device comprises a heat preservation box and a heat supply mechanism, a heat preservation cavity is formed in the heat preservation box, and a feeding port and a discharging port which communicate with the heat preservation cavity are formed in the outer wall of the heat preservation box; the outer wall of the heat preservation box is further provided with a plurality of heat supply ports communicating with the heat preservation cavity. The heat supply mechanism comprises a heat supply box, a fan and a heating assembly, a heat supply cavity is formed in the heat supply box, and the heating assembly is arranged in the heat supply cavity; the fan is installed on the heat supply box, an air outlet of the fan is communicated with the heat supply cavity, a plurality of heat outlets corresponding to the heat supply ports are formed in the outer wall of the heat supply box, and the heat outlets are communicated with the heat supply cavity; pipelines matched with the heat supply ports are further arranged, and the two ends of each pipeline are connected with one heat supply port and one heat outlet respectively. The welding quality of products is guaranteed, energy consumption is reduced, and cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of stainless steel production and processing, and in particular to a welding heat preservation device for stainless steel forgings. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that uses heating, high temperature or high pressure to join metals or other thermoplastic materials such as plastics. Some stainless steel forgings need to be welded after forging. In order to prevent deformation and cracks in the welding area, maintain the temperature of the welding area stable, and improve welding quality and efficiency, the welded product is generally kept warm for a period of time.

[0003] In the prior art, the general insulation method is to directly place it in an insulation box and keep it warm for a period of time. The insulation method of the insulation box is to directly set a heating wire in the insulation box to keep the product warm for a period of time after welding. When welding products, they are welded one by one, and it is impossible to weld multiple products at one time and put them into the insulation box for insulation. Therefore, in order to solve this problem, an inlet and an outlet are generally opened on the insulation box, and the conveyor line is directly placed in the insulation box. The product is sent into the insulation box from the inlet, and after being kept warm in the insulation box for a period of time, it is sent out from the outlet of the insulation box. For this structure, there are the following problems: the heating wire is generally set close to the inner wall of the insulation box, and the inlet and outlet will contact the outside air, which will cause uneven temperature inside the insulation box, affect the insulation effect, and then affect the welding quality, and the energy consumption is also relatively high. Therefore, how to improve the insulation effect and ensure the welding quality is the direction that technical personnel in this field need to work hard on. Summary of the invention

[0004] The purpose of the present invention is to provide a welding heat preservation device for stainless steel forgings. By using this structure, the heat preservation effect is effectively improved, the welding quality of the product is guaranteed, and energy consumption can be saved and costs can be reduced.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a welding heat preservation device for stainless steel forgings, comprising a heat preservation box and a heating mechanism, wherein a heat preservation cavity is provided in the heat preservation box, and a feed port and a discharge port communicating with the heat preservation cavity are provided on the outer wall of the heat preservation box;

[0006] The outer wall of the heat preservation box is also provided with a plurality of heat supply ports connected with the heat preservation cavity;

[0007] The heating mechanism comprises a heating box, a fan and a heating component. The heating box is provided with a heating cavity, and the heating component is arranged in the heating cavity.

[0008] The fan is installed on the heating box, and the air outlet of the fan is connected to the heating cavity. The outer wall of the heating box is provided with a plurality of heat outlets corresponding to the heat outlets, and the heat outlets are connected to the heating cavity;

[0009] A pipeline matching the heat supply port is also provided, and both ends of each pipeline are respectively connected to a heat supply port and a heat outlet.

[0010] In the above technical solution, a plurality of air guide plates are provided on the inner wall of the heating chamber at the air outlet of the fan, and an air guide channel is formed between adjacent air guide plates. The plurality of air guide channels are arranged in sequence along the extension direction of the heating component, and the air guide channel is arranged directly above the heating component.

[0011] In the above technical solution, the heating assembly includes a U-shaped heating tube, which is installed in the middle of the heating chamber, one end of the U-shaped heating tube passes through the heating box and is connected to a power supply, and the U-shaped heating tube is arranged directly below the fan outlet.

[0012] In the above technical solution, a plurality of fins are provided on the U-shaped heating tube, and the plurality of fins are arranged at intervals on the U-shaped heating tube.

[0013] In the above technical solution, a support block is further provided at the bottom of the heating chamber, and the bottoms of the plurality of fins are against the support block.

[0014] In the above technical solution, the outer cover of the thermal insulation box is provided with a first thermal insulation sleeve.

[0015] In the above technical solution, the outer cover of the heating box is provided with a second insulation sleeve;

[0016] The top of the second heat-insulating sleeve is provided with a clearance cavity, and the bottom of the fan passes through the clearance cavity and is installed on the top surface of the heating box.

[0017] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0018] 1. The present invention is provided with a heating box, and the heating box and the insulation box are connected by a pipeline. A fan is provided on the heating box, and air is blown into the heating box by the fan. The air blown into the heating box is heated by the heating component in the heating box, so that the air with the corresponding temperature quickly enters the insulation box to keep the product warm, effectively ensuring the temperature balance in the insulation box and improving the insulation effect;

[0019] 2. The present invention adopts a heating component to heat the air sent by the fan, which can ensure the uniformity of heating, save energy consumption and reduce costs;

[0020] 3. In the present invention, a plurality of fins are arranged on the heating tube, which can increase the contact area with the air delivered by the fan, improve the heating efficiency and effect, reduce energy consumption and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the first embodiment of the present invention;

[0022] Figure 2 is a schematic cross-sectional structural diagram of Embodiment 1 of the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the fan and the heating assembly in the first embodiment of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the first embodiment of the present invention when the first insulation cover and the second insulation cover are installed.

[0025] Among them: 1. Insulation box; 2. Insulation cavity; 3. Feed inlet; 4. Discharge outlet; 5. Heat supply outlet; 6. Heating box; 7. Fan; 8. Heating component; 9. Heating cavity; 10. Heat outlet; 11. Pipeline; 12. Air guide plate; 13. Air guide channel; 14. U-shaped heating tube; 15. Fin; 16. Support block; 17. First insulation cover; 18. Second insulation cover; 19. Give way cavity. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0027] Example 1: See Figure 1-4 As shown, a welding heat preservation device for stainless steel forgings comprises a heat preservation box 1 and a heating mechanism, wherein a heat preservation chamber 2 is provided in the heat preservation box 1, and a feed port 3 and a discharge port 4 communicating with the heat preservation chamber 2 are provided on the outer wall of the heat preservation box 1;

[0028] The outer wall of the heat preservation box 1 is also provided with a plurality of heat supply ports 5 communicating with the heat preservation chamber 2;

[0029] The heating mechanism comprises a heating box 6, a fan 7 and a heating assembly 8. A heating chamber 9 is provided in the heating box 6, and the heating assembly 8 is arranged in the heating chamber 9.

[0030] The fan 7 is installed on the heating box 6, and the air outlet of the fan 7 is connected to the heating chamber 9. The outer wall of the heating box 6 is provided with a plurality of heat outlets 10 corresponding to the heat outlets 5 one by one, and the heat outlets 10 are connected to the heating chamber 9;

[0031] A pipeline 11 matching the heat supply port 5 is also provided, and both ends of each of the pipelines 11 are connected to one of the heat supply ports 5 and the heat outlet 10 respectively.

[0032] In this embodiment, in actual use, a conveyor line is set up, the middle part of which is in the insulation chamber, one end of which passes through the feed port and is located outside the insulation box, and the other end passes through the discharge port and is located outside the insulation box. The welded product is placed on the conveyor line, and the product enters the insulation box from the feed port, is insulated in the insulation box, and is then sent out from the discharge port. In this way, the product is kept warm for a predetermined time according to the conveying speed of the conveyor line and the insulation temperature of the insulation chamber to ensure the welding quality of the product. Among them, since the feed port and the discharge port are connected to the outside of the insulation chamber, external cold air may enter the insulation chamber from the feed port and the discharge port, thereby affecting the insulation effect of the product. Therefore, in this embodiment, a heating mechanism is also separately provided, a heating chamber is provided inside the heating box, a heating assembly is provided inside the heating chamber, and a fan is installed on the heating box, the air outlet of the fan is connected to the heating chamber, when in use, the fan sends the external air into the heating chamber through the air outlet, and the heating assembly heats the air in the heating chamber, because the heat outlet is connected to the heating port of the insulation box through a pipeline, the gas blown into the heating chamber by the fan can only be sent out from the heat outlet, and sent into the insulation chamber through the pipeline and the heat outlet, so that the hot air with the set temperature in the insulation chamber is used to keep the product warm. At the same time, because the heating box always provides hot air to the insulation chamber, the hot air in the insulation chamber can only be sent out from the feed port and the discharge port, so that the external cold air cannot enter the insulation chamber from the feed port and the discharge port, so as to ensure that the temperature in the insulation chamber remains relatively stable, thereby ensuring the insulation effect of the product.

[0033] See also Figure 2 , 3 As shown, a plurality of air guide plates 12 are provided on the inner wall of the heating cavity 9 at the air outlet of the fan 7, and an air guide channel 13 is formed between adjacent air guide plates 12. The plurality of air guide channels 13 are arranged in sequence along the extension direction of the heating component 8, and the air guide channel 13 is arranged directly above the heating component 8.

[0034] Among them, the size of the air outlet of the fan will be shorter than the length of the heating component. In order to heat the cold air blown out by the fan (or the temperature has not reached the temperature required by the insulation chamber) as soon as possible and prevent the cold air from being directly sent out from the heat outlet, and at the same time slow down the flow rate of the cold air in contact with the heating component, and improve the heating effect of the heating component on the cold air, an air guide plate is set to form a plurality of air guide channels, and the lower width of the air guide channel is larger than the upper width of the air guide channel, so that the wind speed of the wind blown out from the air outlet of the fan will gradually slow down, and the air guide plate will be used to block it to a certain extent, slowing down the wind speed, so that the cold air contacts the heating component at a slower speed, is heated by the heating component, and then sent out from the heat outlet.

[0035] See also Figure 2 , 3As shown, the heating assembly 8 includes a U-shaped heating tube 14, which is installed in the middle of the heating chamber 9, one end of the U-shaped heating tube 14 passes through the heating box 6 and is connected to a power supply, and the U-shaped heating tube 14 is arranged directly below the air outlet of the fan 7.

[0036] In this embodiment, the U-shaped opening of the U-shaped heating tube is arranged to face right, the left end of the U-shaped heating tube is arranged close to the left inner wall of the heating chamber, the front and rear ends of the right side of the U-shaped heating tube pass through the heating box respectively and are located outside the heating box, and are connected to the power supply, and the U-shaped heating tube is powered by the power supply, so that the U-shaped heating tube is heated. Among them, the heat outlet is arranged on the rear wall of the heating box from left to right, the bottom plane of the heat outlet is below the bottom plane of the U-shaped heating tube, and the top plane of the heat outlet is also arranged as close to the bottom plane of the U-shaped heating tube as possible, or is below the bottom plane of the U-shaped heating tube, and the bottom of the air guide channel is arranged close to the U-shaped heating tube, so that the hot air sent out can contact the U-shaped heating tube as soon as possible, preventing the cold air from leaking through the U-shaped heating tube and being sent out from the heat outlet, thereby ensuring the heating effect of the cold air.

[0037] See also Figure 2 , 3 As shown, a plurality of fins 15 are sleeved on the U-shaped heating tube 14 , and the plurality of fins 15 are arranged on the U-shaped heating tube 14 at intervals.

[0038] In order to increase the air delivered by the fan and the heating area of ​​the U-shaped heating tube, improve the heating effect of the cold air, and improve the utilization rate of energy, a plurality of fins are arranged at intervals on the U-shaped heating tube. When the U-shaped heating tube generates heat, the heat will be transferred to the fins. The fins also act as a heat conductor to increase the contact area with the air, improve the heating efficiency and heating effect, save energy consumption and reduce costs.

[0039] See also Figure 2 , 3 As shown, a support block 16 is further provided at the bottom of the heating chamber 9, and the bottoms of the plurality of fins 15 are against the support block 16. The right end of the U-shaped heating pipe is connected to the heating box, and the support block is arranged close to the left side of the U-shaped heating pipe, so that the left end of the U-shaped heating pipe can be supported by the support block, and the right end is positioned by the heating box, so that the U-shaped heating pipe is suspended in the air and will not be deformed.

[0040] The outer cover of the heat preservation box 1 is provided with a first heat preservation sleeve 17. The first heat preservation sleeve will make way at the positions of the inlet and outlet, so as not to affect the inlet and outlet of the product, and the first heat preservation sleeve and the second heat preservation sleeve will cover the connection between the pipeline and the heat supply port, so as to reduce the heat dissipation of the heat preservation box as much as possible, ensure the heat preservation effect, save energy consumption and reduce costs.

[0041] Among them, the outer cover of the heating box 6 is provided with a second insulation sleeve 18; the second insulation sleeve is also covered at the connection between the pipeline and the heat outlet, further improving the insulation effect, saving energy consumption and reducing costs.

[0042] See also Figure 4 As shown, a clearance cavity 19 is provided on the top of the second heat-insulating sleeve 18, and the bottom of the fan passes through the clearance cavity and is installed on the top surface of the heating box. The setting of the clearance cavity facilitates the installation of the fan.

Claims

1. A welding heat preservation device for stainless steel forgings, characterized in that: It comprises an insulation box and a heating mechanism, wherein the insulation box is provided with an insulation cavity, and the outer wall of the insulation box is provided with a feed inlet and a discharge port connected with the insulation cavity; The outer wall of the heat preservation box is also provided with a plurality of heat supply ports connected with the heat preservation cavity; The heating mechanism comprises a heating box, a fan and a heating component. The heating box is provided with a heating cavity, and the heating component is arranged in the heating cavity. The fan is installed on the heating box, and the air outlet of the fan is connected to the heating cavity. The outer wall of the heating box is provided with a plurality of heat outlets corresponding to the heat outlets, and the heat outlets are connected to the heating cavity; A pipeline matching the heat supply port is also provided, and both ends of each pipeline are respectively connected to a heat supply port and a heat outlet.

2. The welding heat preservation device for stainless steel forgings according to claim 1, characterized in that: A plurality of air guide plates are provided on the inner wall of the heating cavity at the air outlet of the fan, and an air guide channel is formed between adjacent air guide plates. The plurality of air guide channels are arranged in sequence along the extension direction of the heating component, and the air guide channel is arranged directly above the heating component.

3. The welding heat preservation device for stainless steel forgings according to claim 1, characterized in that: The heating assembly includes a U-shaped heating tube, which is installed in the middle of the heating cavity. One end of the U-shaped heating tube passes through the heating box and is connected to a power supply, and the U-shaped heating tube is arranged directly below the air outlet of the fan.

4. The welding heat preservation device for stainless steel forgings according to claim 3, characterized in that: The U-shaped heating tube is sleeved with a plurality of fins, and the plurality of fins are arranged at intervals on the U-shaped heating tube.

5. The welding heat preservation device for stainless steel forgings according to claim 4, characterized in that: A support block is also provided at the bottom of the heating chamber, and the bottoms of the plurality of fins are against the support block.

6. The welding heat preservation device for stainless steel forgings according to claim 1, characterized in that: The outer cover of the thermal insulation box is provided with a first thermal insulation sleeve.

7. The welding heat preservation device for stainless steel forgings according to claim 1, characterized in that: The outer cover of the heating box is provided with a second thermal insulation sleeve; The top of the second heat-insulating sleeve is provided with a clearance cavity, and the bottom of the fan passes through the clearance cavity and is installed on the top surface of the heating box.

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