Brazing process system and process method for pressure pipe assembly

By setting up a rotating device in the brazing furnace, the brazing component and the atmosphere in the furnace are fully in contact, the problem of poor brazing quality is solved, and the brazing efficiency and quality are improved.

CN115846789BActive Publication Date: 2025-08-15WUXI MINGCHENG ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202211734949.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-31
Publication Date
2025-08-15
Estimated Expiration
2042-12-31

AI Technical Summary

Technical Problem

In existing brazing furnaces, the brazing components are not in sufficient contact with the atmosphere in the furnace, which affects the brazing quality.

Method used

By setting up a rotating device in the brazing furnace, the brazing assembly is driven to rotate up and down, and combined with the circulating flow of the atmosphere in the furnace, it is ensured that the brazing assembly and the brazing atmosphere are in full contact.

Benefits of technology

Improve the brazing quality and efficiency of brazing components, and enhance the preheating, brazing and cooling effects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a brazing process system and process method for a pressure-guiding pipe assembly, comprising a brazing furnace body, a preheating furnace section, a heating furnace structure, and a cooling furnace section, which are sequentially combined to form a through-bridge-type brazing furnace body. The inlet and outlet of the brazing furnace body are respectively connected and provided with a smoke exhaust pipe structure, and a conveying structure is provided through the brazing furnace body. A brazing atmosphere is formed inside the furnace chamber within the heating furnace structure, and the conveying structure drives the brazing assembly through the brazing atmosphere via an adjusting disk, and a rotating rod on the adjusting disk drives the brazing assembly to rotate spirally along its own central axis. The present invention provides a brazing process system and process method for a pressure-guiding pipe assembly, wherein the brazing assembly inside the furnace chamber rotates up and down, thereby being in full contact with the atmosphere circulating in the furnace chamber, thereby improving the brazing quality of the brazing assembly.
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Description

Technical Field

[0001] The present invention relates to the field of brazing, in particular to the field of brazing of pressure guiding tube assemblies. Background Art

[0002] A brazing furnace is a device used for metal brazing. The components to be brazed are fed into the furnace chamber of the brazing furnace to braze the components. However, in existing brazing furnaces, when the components pass through the furnace chamber, they only pass through the atmosphere in the furnace chamber, resulting in insufficient contact between the atmosphere and the components, affecting the brazing quality. Therefore, improvements are being made to the existing brazing furnaces to improve the brazing quality. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a brazing process system and process method for a pressure-guiding tube assembly. By rotating the brazing assembly inside the furnace up and down, the brazing assembly can fully contact the atmosphere circulating in the furnace, thereby improving the brazing quality of the brazing assembly.

[0004] Technical solution: To achieve the above purpose, the technical solution of the present invention is as follows:

[0005] The brazing process system of the pressure-guiding pipe assembly includes a brazing furnace body, a preheating furnace section, a heating furnace structure and a cooling furnace section, which are sequentially combined into a through-bridge-type brazing furnace body. The inlet and outlet of the brazing furnace body are respectively connected to a smoke exhaust pipe structure, and a conveying structure is arranged through the brazing furnace body; a brazing atmosphere is formed inside the furnace chamber of the heating furnace structure, and the conveying structure drives the brazing assembly through the brazing atmosphere through an adjusting disk, and the rotating rod on the adjusting disk drives the brazing assembly to rotate spirally along its own central axis.

[0006] Furthermore, the preheating furnace section is connected to the smoke exhaust duct structure at the entrance; the smoke exhaust duct structure includes an exhaust chamber; an air duct is provided at the top of the exhaust chamber, and an exhaust fan is provided at the connection between the exhaust chamber and the air duct; the transport structure is arranged through the exhaust chamber, and guide fans are provided on the inner walls of the bottom of the exhaust chamber on both sides of the transport structure, and the blowing direction of the guide fan is inclined upward, and the relative guide fans are staggered, and the inclination angle of the guide fan on one side is greater than the inclination angle of the guide fan on the other side.

[0007] Furthermore, the heating furnace structure includes a mounting base and a furnace shell structure; the furnace shell structure cover separately from the mounting base is provided on the furnace chamber; the trajectory formed by the furnace shell structure and the mounting base is wavy, and the furnace shell structure and the mounting base are fixed and closed by buckle plates; the conveyor belt of the transport structure is provided on the surface of the mounting base, and the furnace chamber is covered on the conveyor belt on the mounting base in a slot-like manner, forming a brazing area between the furnace chamber and the mounting base.

[0008] Furthermore, an atmosphere cavity is provided inside the furnace; a connecting hole is provided at the bottom of the atmosphere cavity; a heating structure provided at the bottom of the mounting base is provided corresponding to the connecting hole; a through groove connected to the brazing area is provided on the bottom surface of the top of the atmosphere cavity, and a ventilation hole connected to the brazing area is provided on the side wall of the atmosphere cavity; an air blowing fan is provided on the top of the atmosphere cavity, and the blowing direction of the air blowing fan is facing the brazing assembly on the conveyor belt.

[0009] Furthermore, a ventilation system is provided at the bottom of the brazing furnace body, and the outlet end of the ventilation pipe of the ventilation system penetrates into the furnace and connects to the atmosphere cavity. The outlet end of the ventilation pipe is arranged opposite to the heating end of the heating structure. The gas introduced into the ventilation pipe causes the brazing atmosphere in the atmosphere cavity to circulate between the atmosphere cavity and the brazing area.

[0010] Furthermore, the heating structure includes a heater; a movable groove is provided on the bottom side wall of the mounting base; a corresponding hole connected to the atmosphere cavity is provided on the top of the movable groove, and the heater is detachably arranged in the corresponding hole; an elastic member is provided at the bottom of the movable groove, a support plate is fixed on the elastic member, a heater is provided on the support plate, and the elastic member pushes the heater into the corresponding hole through the support plate.

[0011] Furthermore, the furnace outlet is arranged corresponding to the cooling furnace section, and a number of water pipes are arranged around the inner wall of the cooling furnace section. The cold air pipes and water pipes of the ventilation system are staggered, and the side walls of the cold air pipes are provided with air holes connected to the inner cavity of the cooling furnace section; the cooling furnace section outlet is connected to the corresponding exhaust cavity, and a blowing fan is arranged at the bottom of the exhaust cavity connected to the cooling furnace section, and the blowing fans are located on both sides of the conveyor belt, and the blowing fans are arranged opposite the exhaust fan at the top of the exhaust cavity.

[0012] Furthermore, a trapezoidal groove is provided on the edge of one side of the adjusting disk body, and a protrusion is fixed on the other side of the adjusting disk body. The trapezoidal groove and the protrusion are arranged along the conveying direction of the conveyor belt. Multiple adjusting disk bodies are arranged front to back, and the protrusion of the previous adjusting disk body is adapted to the trapezoidal groove of the next adjusting disk body; the adjusting disk body drives the brazing assembly to move by rotating the rod body.

[0013] Furthermore, the rotating rod body includes a through rod and a supporting base plate, the rotating device on the surface of the adjusting disk body is drivingly connected to the bottom of the supporting base plate, and a through rod is fixed in the middle of the surface of the supporting base plate; the brazing assembly includes a copper tube and a welding base, and the welding base is a semi-disc-shaped composite structure, and a matching hole is opened through the middle of the welding base, and one end of the copper tube is inserted into the matching hole; the copper tube drives the welding base to be sleeved on the through rod, and the welding base is covered on the surface of the supporting base plate; a gasket is sandwiched between the supporting base plate and the welding base.

[0014] Furthermore, a brazing process method of a brazing process system for a pressure-guiding pipe assembly includes the following steps: first, a brazing assembly formed by combining a copper pipe and a welding base is placed on a rotating rod of an adjusting disc, so that a plurality of adjusting discs are sequentially arranged on a conveyor belt of a transport structure;

[0015] Step 2: The conveyor belt copper tube regulating disc drives the brazing components into the preheating furnace section for preheating, and then transports them into the furnace. The brazing atmosphere in the furnace is between the brazing components, and the rotating rod drives the brazing components to move up and down and rotate;

[0016] Step 3: After brazing, the brazing components enter the cooling furnace section for cooling, and then come out of the exhaust pipe structure. An upward air flow is formed in the exhaust pipe structure, which causes the brazing atmosphere to be discharged from bottom to top.

[0017] Beneficial effects: The present invention includes but is not limited to the following beneficial effects:

[0018] 1) The brazing atmosphere in the furnace can circulate inside the furnace and in the brazing area through the through slots and ventilation holes. When the brazing components pass through, the brazing components can be brazed. The fan can blow the brazing atmosphere in the furnace to the brazing components on the conveyor belt, so that the brazing atmosphere can braze the brazing components, effectively improving the brazing efficiency.

[0019] 2) The rotating device drives the supporting base plate to drive the through rod to move up and down and rotate, and the through rod drives the brazing assembly to move up and down and rotate. When the brazing assembly that rotates up and down passes through the copper tube preheating furnace section, the heating furnace structure and the cooling furnace section in sequence, the brazing assembly can fully contact the preheating atmosphere, the brazing atmosphere and the cooling; improve the effect and efficiency of preheating, brazing and cooling, and improve the brazing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attachment Figure 1 This is the structural diagram of the brazing process system;

[0021] Attachment Figure 2 This is the smoke exhaust pipe structure diagram;

[0022] Attachment Figure 3 This is the furnace structure diagram;

[0023] Attachment Figure 4 It is the heating structure diagram;

[0024] Attachment Figure 5 To adjust the disk structure diagram;

[0025] Attachment Figure 6 This is a structural diagram of the brazing assembly;

[0026] Attachment Figure 7 This is the exhaust chamber structure diagram. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] As attached Figure 1-7 : The brazing process system of the pressure-guiding pipe assembly includes a brazing furnace body 1, a preheating furnace section 2, a heating furnace structure 3 and a cooling furnace section 13, which are sequentially combined into a through-bridge-type brazing furnace body 1, and the inlet and outlet of the brazing furnace body 1 are respectively connected with a smoke exhaust pipe structure 4, and a conveying structure 5 is arranged through the brazing furnace body 1; a brazing atmosphere is formed inside the furnace chamber 31 in the heating furnace structure 3, and the conveying structure 5 drives the brazing assembly 6 through the brazing atmosphere through the adjusting disk 7, and the rotating rod 73 on the adjusting disk 7 drives the brazing assembly 6 to rotate spirally along its own central axis. The adjusting disc is placed on the conveying structure, and the adjusting disc drives the brazing assembly into the brazing furnace body. The brazing assembly passes through the exhaust pipe structure at the entrance to the preheating furnace section. The heating elements in the preheating furnace section are pre-ignited to heat the inside of the preheating furnace section. When the brazing assembly moves into the preheating furnace section, the atmosphere in the preheating furnace section can preheat the brazing assembly. The preheated brazing assembly enters the furnace chamber in the heating furnace structure. When the brazing assembly passes through the brazing atmosphere, the position to be brazed of the brazing assembly can be welded. At the same time, the rotating rod drives the brazing assembly to move up and down and rotate, so that the brazing assembly is fully in contact with the brazing atmosphere, thereby improving the brazing quality. After brazing, the brazing assembly moves into the cooling furnace section. The cold air in the cooling furnace section can cool the brazing assembly, and finally comes out from the exhaust pipe structure at the outlet.

[0029] The preheating furnace section 2 is connected to the exhaust pipe structure 4 at the entrance; the exhaust pipe structure 4 includes an exhaust cavity 41; the top of the exhaust cavity 41 is connected to an air pipe 411, and an exhaust fan is provided at the connection between the exhaust cavity 41 and the air pipe 411; the conveying structure 5 is arranged through the exhaust cavity 41, and guide fans 42 are provided on the inner wall of the bottom of the exhaust cavity 41 on both sides of the conveying structure 5. The blowing direction of the guide fans 42 is inclined upward, and the relative guide fans 42 are staggered. The guide fans blow upward, which can form a negative pressure below the blowing direction, thereby To promote the atmosphere in the preheating furnace section to be guided and discharged upward, the inclination angle of the guide fan 42 on one side is greater than the inclination angle of the guide fan 42 on the other side, and the negative pressure formed by the guide fan blowing air can be superimposed to increase the exhaust effect; the guide fan blows air upward, and cooperates with the exhaust fan to form an upward airflow in the exhaust cavity. When the atmosphere in the preheating furnace section flows into the exhaust cavity, the upward airflow in the exhaust cavity can drive the atmosphere upward and be discharged from the air pipe, so that the staff who place the adjustment disk at the entrance of the smoke exhaust duct structure will not be affected by the atmosphere and endanger their health.

[0030] The heating furnace structure 3 includes a mounting base 32 and a furnace shell structure 33; the furnace shell structure 33 which is separately arranged from the mounting base 32 is covered on the furnace chamber 31; the trajectory formed by the furnace shell structure 33 and the mounting base 32 is wavy, and the furnace shell structure 33 and the mounting base 32 are fixed and closed by a buckle plate; the wavy setting at the joint increases the matching effect and improves the stability. The furnace shell structure is in a cover shape and can be closed with the preheating furnace section and the cooling furnace section at both ends. The furnace shell structure is filled with folded cotton blocks to replace arch bricks for easy maintenance; the conveyor belt of the transport structure 5 is arranged on the surface of the mounting base 32, and the furnace chamber 31 is covered on the conveyor belt on the mounting base 32 in a slot-type manner, forming a brazing area between the furnace shell structure and the mounting base 32; the furnace shell structure can be lifted by a lifting device, and the furnace chamber can be visually seen after lifting, which is convenient for inspection and replacement of the furnace chamber.

[0031] An atmosphere cavity 311 is defined within the furnace 31; a connecting hole 314 is defined at the bottom of the atmosphere cavity 311; the heating structure 8 provided at the bottom of the mounting base 32 is configured to correspond to the connecting hole 314; a through slot 312 communicating with the brazing area is defined on the top bottom surface of the atmosphere cavity 311, and ventilation holes 315 communicating with the brazing area are defined on the sidewalls of the atmosphere cavity 311; an air blower 313 is provided at the top of the atmosphere cavity 311, with the air blowing direction of the air blower 313 facing the brazing assembly 6 on the conveyor belt. The brazing atmosphere within the furnace can circulate within the furnace and within the brazing area through the through slot and ventilation holes. When a brazing assembly passes through, the brazing assembly can be brazed. The fan can blow the brazing atmosphere within the furnace onto the brazing assembly on the conveyor belt, enabling the brazing atmosphere to braze the brazing assembly, thereby effectively improving the efficiency of brazing.

[0032] The brazing furnace body 1 is provided with a ventilation system at the bottom. The outlet end of the ventilation pipe 9 of the ventilation system penetrates into the furnace 31 and connects to the atmosphere cavity 311. The outlet end of the ventilation pipe 9 is arranged opposite the heating end of the heating structure 8. The gas introduced into the ventilation pipe 9 causes the brazing atmosphere in the atmosphere cavity 311 to circulate between the atmosphere cavity 311 and the brazing area. The heating structure 8 includes a heater 81. A movable groove 321 is provided on the bottom side wall of the mounting base 32. A corresponding hole 322 communicating with the atmosphere cavity 311 is provided at the top of the movable groove 321. The heater 81 can be detachably installed in the corresponding hole 322. An elastic member 323 is provided at the bottom of the movable groove 321. A support plate 324 is fixed to the elastic member 323. The heater 81 is arranged on the support plate 324. The elastic member 323 pushes the heater 81 through the support plate 324 to fill the corresponding hole 322. When installing the heating structure, external force presses the support plate, causing the elastic part to contract, thereby leaving space above the support plate, and then the heater is placed on the support plate, and the heating end of the heater is aligned with the corresponding hole. When the support plate is released, the upward force of the support plate can drive the heater to fill the corresponding hole, so that the heater can be installed corresponding to the inside of the furnace, and then the heating end of the heater starts to heat. The gas blown out of the vent pipe is heated by the heater and fills the inside of the furnace to form a brazing atmosphere. The brazing atmosphere is blown by the blowing fan to flow to the brazing component for brazing; the heater is installed outside the body for easy maintenance and replacement.

[0033] The outlet of the furnace 31 corresponds to the cooling furnace section 13. A number of water pipes are arranged around the inner wall of the cooling furnace section 13. The cooling air pipes of the ventilation system are staggered with the water pipes. The side walls of the cooling air pipes are provided with air holes that are connected to the inner cavity of the cooling furnace section 13. The outlet of the cooling furnace section 13 is connected to the corresponding exhaust cavity 41. A blowing fan 43 is arranged at the bottom of the exhaust cavity 41 connected to the cooling furnace section 13. The blowing fan 43 is located on both sides of the conveyor belt and is directly opposite to the exhaust fan at the top of the exhaust cavity 41. After brazing, the brazing assembly enters the cooling furnace section. The cold air in the cooling furnace section causes the brazing assembly to cool down and then goes out through the exhaust pipe structure at the outlet. The blowing fan in the exhaust cavity at the outlet cooperates with the exhaust fan at the top to form an upward-flowing exhaust airflow in the exhaust cavity. When the cooling air flows into the exhaust cavity, it can be discharged from the top air pipe through the guidance of the exhaust airflow, thereby preventing the cold air formed after brazing from flowing out of the outlet, affecting the operators at the outlet and endangering their health.

[0034] A trapezoidal groove 71 is provided on one edge of the adjusting disk 7, and a protrusion 72 is fixed on the other side of the adjusting disk 7. The trapezoidal groove 71 and the protrusion 72 are arranged along the conveying direction of the conveyor belt. Multiple adjusting disks 7 are arranged front to back, and the protrusion 72 of the previous adjusting disk 7 is adapted to the trapezoidal groove 71 of the next adjusting disk 7; the adjusting disk 7 drives the brazing assembly 6 to move by rotating the rod body 73; the cooperation of the trapezoidal grooves and the protrusions can cause the multiple adjusting disks to be arranged front to back along the conveyor belt in a straight line, which is conducive to transportation. At the same time, due to the limiting effect of the trapezoidal grooves and the protrusions, the adjusting disk is not easy to deviate to the side during transportation, thereby avoiding the adjustment disk colliding with the side wall of the brazing furnace body, affecting the normal transportation work, and causing the brazing quality problem.

[0035] The rotating rod body 73 includes a through rod 731 and a supporting base plate 732. The rotating device on the surface of the adjusting disk body 7 is driven and connected to the bottom of the supporting base plate 732. A through rod 731 is fixed in the middle of the surface of the supporting base plate 732; the brazing assembly 6 includes a copper tube 61 and a welding base 62. The welding base 62 is a semi-disc-shaped composite structure. A matching hole 621 is opened in the middle of the welding base 62, and one end of the copper tube 61 is inserted into the matching hole 621; the copper tube 61 drives the welding base 62 to be sleeved on the through rod 731, and the welding base 62 covers the surface of the supporting base plate 732; a gasket 733 is sandwiched between the supporting base plate 732 and the welding base 62. After brazing, the gasket can drive the welding base and the copper tube to move out of the through rod through the gasket, so as to prevent the copper tube from being driven by external force to drive the welding base to pull out of the through rod, thereby avoiding damage to the brazing assembly after brazing. First, insert one end of the copper tube into the matching hole of the welding base, and then drive the welding base from top to bottom through the copper tube to cover the through rod, and make the bottom of the welding base stick to the gasket, so that the brazing assembly is installed on the rotating rod body, and the rotating device drives the supporting base plate to drive the through rod to move up and down and rotate, and the through rod drives the brazing assembly to move up and down and rotate. When the brazing assembly rotates up and down and passes through the copper tube preheating furnace section, the heating furnace structure and the cooling furnace section in turn, the brazing assembly can fully contact with the preheating atmosphere, brazing atmosphere and cooling; improve the effect and efficiency of preheating, brazing and cooling, and improve the brazing quality.

[0036] The brazing process method of the pressure-guiding pipe assembly brazing process system includes a ventilation system with ventilation pipes connected to the preheating furnace section, the heating furnace structure, and the cooling furnace section. Air is inflated into the brazing furnace before brazing begins, causing the existing gas in the brazing furnace to be discharged before brazing begins. The first step is to place the brazing assembly 6, formed by the copper tube 61 and the welding base 62, onto the rotating rod 73 of the adjustment disk 7, so that several adjustment disks 7 are arranged in sequence on the conveyor belt of the conveying structure 5. The conveyor belt copper tube adjustment disk transports the brazing assembly into the brazing furnace for brazing.

[0037] Step 2: The conveyor belt copper tube regulating disc 7 drives the brazing assembly 6 into the preheating furnace section 2 for preheating, and then transports it to the furnace 31. The brazing atmosphere in the furnace 31 is between the brazing assemblies 6. The rotating rod 73 drives the brazing assembly 6 to move up and down and rotate. The brazing assembly that rotates up and down is in the brazing atmosphere and can fully contact with the brazing atmosphere, thereby improving the brazing quality.

[0038] Step 3: After brazing, the brazing assembly 6 enters the cooling furnace section 13 for cooling, and then comes out of the exhaust pipe structure 4. An upward air flow is formed in the exhaust pipe structure 4, which prompts the brazing atmosphere to be discharged from bottom to top, avoiding the cooling atmosphere being discharged from the outlet and affecting the operators at the outlet, which is harmful to their health.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. A person skilled in the art may make several improvements and changes without departing from the above principles of the present invention, and these improvements and changes are also considered to be within the scope of protection of the present invention.

Claims

1. The brazing process system of the pressure pipe assembly is characterized by: The invention comprises a brazing furnace body (1), a preheating furnace section (2), a heating furnace structure (3) and a cooling furnace section (13), which are sequentially combined to form a through-bridge type brazing furnace body (1); a smoke exhaust pipe structure (4) is respectively provided at the inlet and outlet of the brazing furnace body (1); a conveying structure (5) is provided through the brazing furnace body (1); a brazing atmosphere is formed inside the furnace chamber (31) in the heating furnace structure (3); the conveying structure (5) drives the brazing assembly (6) through the brazing atmosphere via an adjusting disk (7); and a rotating rod (73) on the adjusting disk (7) drives the brazing assembly (6) to rotate spirally along its own central axis; The heating furnace structure (3) includes a mounting base (32) and a furnace shell structure (33); the furnace shell structure (33) is separately provided with the mounting base (32) and is covered on the furnace (31); the trajectory formed by the furnace shell structure (33) and the mounting base (32) is wavy, and the furnace shell structure (33) and the mounting base (32) are fixed and closed by a buckle plate; the conveyor belt of the transport structure (5) is provided on the surface of the mounting base (32), and the furnace (31) is covered on the conveyor belt on the mounting base (32) in a slot-type manner, forming a brazing area between the furnace and the mounting base (32); An atmosphere cavity (311) is provided inside the furnace (31); a connecting hole (314) is provided at the bottom of the atmosphere cavity (311); a heating structure (8) provided at the bottom of the mounting base (32) is provided corresponding to the connecting hole (314); a through groove (312) communicating with the brazing area is provided on the bottom surface of the top of the atmosphere cavity (311), and a ventilation hole (315) communicating with the brazing area is provided on the side wall of the atmosphere cavity (311); an air blowing fan (313) is provided at the top of the atmosphere cavity (311), and the blowing direction of the air blowing fan (313) is directly facing the brazing assembly (6) on the conveyor belt; A ventilation system is provided at the bottom of the brazing furnace body (1); the outlet end of the ventilation pipe (9) of the ventilation system penetrates into the furnace (31) and communicates with the atmosphere cavity (311); the outlet end of the ventilation pipe (9) is arranged opposite to the heating end of the heating structure (8); the gas introduced into the ventilation pipe (9) causes the brazing atmosphere in the atmosphere cavity (311) to circulate between the atmosphere cavity (311) and the brazing area; The rotating rod body (73) includes a through rod (731) and a supporting base plate (732); the rotating device on the surface of the adjusting disk body (7) is drivingly connected to the bottom of the supporting base plate (732); the through rod (731) is fixedly provided in the middle of the surface of the supporting base plate (732); the brazing assembly (6) includes a copper tube (61) and a welding base (62); the welding base (62) is a semi-disc-shaped composite structure; a matching hole (621) is provided through the middle of the welding base (62), and one end of the copper tube (61) is inserted into the matching hole (621); the copper tube (61) drives the welding base (62) to be sleeved on the through rod (731), and the welding base (62) is covered on the surface of the supporting base plate (732); a gasket (733) is sandwiched between the supporting base plate (732) and the welding base (62).

2. The brazing process system for the pressure guiding tube assembly according to claim 1, characterized in that: The preheating furnace section (2) is in communication with the smoke exhaust pipe structure (4) at the entrance; the smoke exhaust pipe structure (4) includes an exhaust cavity (41); an air pipe (411) is provided at the top of the exhaust cavity (41); an exhaust fan is provided at the connection between the exhaust cavity (41) and the air pipe (411); the transport structure (5) is arranged through the exhaust cavity (41); guide fans (42) are provided on the inner walls of the bottom of the exhaust cavity (41) on both sides of the transport structure (5); the blowing direction of the guide fans (42) is tilted upward, and the opposite guide fans (42) are staggered, and the tilt angle of the guide fan (42) on one side is greater than the tilt angle of the guide fan (42) on the other side.

3. The brazing process system for the pressure guiding tube assembly according to claim 1, characterized in that: The heating structure (8) includes a heater (81); a movable groove (321) is provided on the side wall of the bottom of the mounting base (32); a corresponding hole (322) communicating with the atmosphere cavity (311) is provided on the top of the movable groove (321), and the heater (81) can be detachably arranged in the corresponding hole (322); an elastic member (323) is provided at the bottom of the movable groove (321), a support plate (324) is fixed on the elastic member (323), and the heater (81) is provided on the support plate (324), and the elastic member (323) pushes the heater (81) through the support plate (324) to fill the corresponding hole (322).

4. The brazing process system for the pressure guiding tube assembly according to claim 3, characterized in that: The outlet of the furnace (31) is arranged corresponding to the cooling furnace section (13), and a plurality of water pipes are arranged around the inner wall of the cooling furnace section (13). The cold air pipes and the water pipes of the ventilation system are arranged in an interlaced manner. The side walls of the cold air pipes are provided with air holes connected to the inner cavity of the cooling furnace section (13); the outlet of the cooling furnace section (13) is connected to the corresponding exhaust cavity (41), and a blowing fan (43) is arranged in the bottom of the exhaust cavity (41) connected to the cooling furnace section (13). The blowing fans (43) are located on both sides of the conveyor belt, and the blowing fans (43) are arranged opposite to the exhaust fan at the top of the exhaust cavity (41).

5. The brazing process system for the pressure guiding tube assembly according to claim 4, characterized in that: A trapezoidal groove (71) is provided on one edge of the adjusting disc body (7), and a protrusion (72) is fixedly provided on the other side of the adjusting disc body (7). The trapezoidal groove (71) and the protrusion (72) are arranged along the conveying direction of the conveyor belt. A plurality of adjusting disc bodies (7) are arranged front to back, and the protrusion (72) of the preceding adjusting disc body (7) is adapted to the trapezoidal groove (71) of the following adjusting disc body (7). The adjusting disc body (7) drives the brazing assembly (6) to move by rotating the rod body (73).

6. The brazing process method of the pressure guiding tube assembly brazing process system according to any one of claims 1 to 5, characterized in that: The first step is to put the brazing assembly (6) formed by combining the copper tube (61) and the welding base (62) on the rotating rod (73) of the adjusting disc (7), so that a plurality of adjusting discs (7) are arranged in sequence on the conveyor belt of the transport structure (5); Step 2: The conveyor belt copper tube regulating disc (7) drives the brazing assembly (6) into the preheating furnace section (2) for preheating, and then transports it to the furnace (31). The brazing atmosphere in the furnace (31) is between the brazing assemblies (6), and the rotating rod (73) drives the brazing assembly (6) to move up and down and rotate; Step 3: After brazing, the brazing assembly (6) enters the cooling furnace section (13) for cooling, and then exits the exhaust pipe structure (4). An upward air flow is formed in the exhaust pipe structure (4), which promotes the brazing atmosphere to be discharged from bottom to top.

Citation Information

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