Humidifying gas pipeline of brazing furnace

Abstract

The utility model relates to the field of brazing furnaces, in particular to a humidifying gas pipeline of a brazing furnace, which comprises the brazing furnace and a humidifying barrel, the inside of the brazing furnace comprises a heating area, a high-temperature area, a first cooling area and a second cooling area which are sequentially arranged along the processing direction, a first gas inlet pipe is arranged on one side of the heating area far away from the high-temperature area, and a second gas inlet pipe is arranged on the other side of the heating area far away from the high-temperature area. A second gas inlet pipe is arranged on the side, away from the heating area, of the high-temperature area, third gas inlet pipes are arranged on the sides, away from the high-temperature area, of the first cooling area and the second cooling area, and the first gas inlet pipe and the two third gas inlet pipes communicate with a hydrogen inlet pipeline; a humidifying air inlet pipe and a humidifying air outlet pipe which are communicated with the humidifying barrel are arranged on the humidifying barrel, the humidifying air inlet pipe is communicated with the hydrogen inlet pipeline, and the humidifying air outlet pipe is communicated with the second air inlet pipe; and it is guaranteed that dry hydrogen entering the cooling area is used for reducing oxidized products, and the quality of welded products is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of brazing furnace, concretely relates to a brazing furnace humidification gas pipeline. BACKGROUND

[0002] The existing brazing furnace controls the solder to climb mainly by hydrogen humidification and water vapor, makes it decompose into oxygen in the furnace to make the product oxidize and inhibit the solder to climb, but all the pipelines are connected with humidification gas, so that the product cannot be reduced after oxidizing and affects the product quality. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a brazing furnace humidification gas pipeline can guarantee the welding quality.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A brazing furnace humidification gas pipeline, including brazing furnace and humidification bucket, the brazing furnace includes the temperature -rising zone, the high temperature zone, the first temperature -falling zone and the second temperature -falling zone that are sequentially arranged along the processing direction, one side of the temperature -rising zone away from the high temperature zone is equipped with the first air inlet pipe, one side of the high temperature zone away from the temperature -rising zone is equipped with the second air inlet pipe, one side of the first temperature -falling zone and the second temperature -falling zone away from the high temperature zone is equipped with the third air inlet pipe, the first air inlet pipe and two third air inlet pipes are connected with hydrogen gas inlet pipeline respectively,

[0006] The humidification bucket is provided with humidification air inlet pipe and humidification air outlet pipe that are communicated with the humidification bucket, the humidification air inlet pipe is communicated with the hydrogen gas inlet pipeline, and the humidification air outlet pipe is communicated with the second air inlet pipe.

[0007] Preferably, the hydrogen gas inlet pipeline is provided with a first flow regulating valve, and the first air inlet pipe, the humidification air inlet pipe and the two third air inlet pipes are communicated with the first flow regulating valve.

[0008] Preferably, a first on-off valve is arranged between the humidification air inlet pipe and the first flow regulating valve.

[0009] Preferably, a second on-off valve is arranged between the humidification air outlet pipe and the second air inlet pipe.

[0010] Preferably, the first on-off valve and the second on-off valve are communicated.

[0011] Preferably, the humidification bucket is provided with a water inlet and a drain, and the height of the drain is less than the height of the water inlet.

[0012] Preferably, the humidification bucket is provided with a minimum liquid level line.

[0013] By adopting the preceding design scheme, the beneficial effects of the present application are as follows: the present application improves the pipeline structure, connects the humidifying out-gas pipe of the humidifying barrel with the second in-gas pipe, i.e. sets the humidifying gas at the outlet of the high-temperature zone of the brazing furnace, ensures that the dry hydrogen gas is used for reducing the oxidized product in the cooling zone, and ensures the quality of the welded product. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the humidifying gas pipeline structure of the brazing furnace of the present application.

[0015] In the figure:

[0016] Brazing furnace 10, heating zone 11, high-temperature zone 12, first cooling zone 13, second cooling zone 14,

[0017] Humidifying barrel 20, humidifying in-gas pipe 21, humidifying out-gas pipe 22, water inlet 23, water outlet 24,

[0018] First in-gas pipe 31, second in-gas pipe 32, third in-gas pipe 33,

[0019] Hydrogen in-gas pipe 40,

[0020] First flow regulating valve 51, first on-off valve 52, second on-off valve 53. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] The terms "first", "second", "third" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, but are not used to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally includes other steps or units not listed or optionally includes other steps or units inherent to the process, method, product or device.

[0023] As Figure 1As shown, a brazing furnace humidified gas pipeline includes a brazing furnace 10 and a humidification barrel 20, pure water is arranged in the humidification barrel 20, that is, water prepared by distillation, reverse osmosis and other processes; The humidification barrel 20 is a transparent humidification barrel, and a minimum liquid level line is arranged on the humidification barrel 20 to facilitate observation of the amount of pure water in the humidification barrel 20.

[0024] The brazing furnace 10 includes a heating zone 11, a high-temperature zone 12, a first cooling zone 13 and a second cooling zone 14 arranged in sequence along the processing direction, a first gas inlet pipe 31 is arranged on the side of the heating zone 11 away from the high-temperature zone 12, a second gas inlet pipe 32 is arranged on the side of the high-temperature zone 12 away from the heating zone 11, and a third gas inlet pipe 33 is arranged on the side of the first cooling zone 13 and the second cooling zone 14 away from the high-temperature zone 12. The first gas inlet pipe 31 and the two third gas inlet pipes 33 are respectively connected with a hydrogen gas inlet pipeline 40. In the embodiment, the first gas inlet pipe 31, the second gas inlet pipe 32, the hydrogen gas inlet pipeline 40 and the two third gas inlet pipes 33 are all wrapped with conventional heat preservation cotton to ensure the temperature of the gas inlet.

[0025] A humidification gas inlet pipe 21 and a humidification gas outlet pipe 22 are arranged on the humidification barrel 20 and connected with the humidification barrel 20, the humidification gas inlet pipe 21 is connected with the hydrogen gas inlet pipeline 40, and the humidification gas outlet pipe 22 is connected with the second gas inlet pipe 32; In the embodiment, a first flow regulating valve 51 is arranged on the hydrogen gas inlet pipeline 40, and the first gas inlet pipe 31, the humidification gas inlet pipe 21 and the two third gas inlet pipes 33 are all connected with the first flow regulating valve 51; The first flow regulating valve 51 is arranged to control the hydrogen gas inlet amount, so as to adjust the hydrogen gas inlet amount according to the production demand.

[0026] A first on-off valve 52 is arranged between the humidification gas inlet pipe 21 and the first flow regulating valve 51; The first on-off valve 52 is arranged to control whether the gas enters the brazing furnace 10 or enters the humidification barrel 20.

[0027] A second on-off valve 53 is arranged between the humidification gas outlet pipe 22 and the second gas inlet pipe 32; The second on-off valve 53 is arranged to control whether the humidified hydrogen gas or dry hydrogen gas enters the high-temperature zone; The first on-off valve 52 and the second on-off valve 53 are connected, the first on-off valve 52 is arranged to control whether the hydrogen gas enters the humidification barrel or directly enters the brazing furnace 10, if the hydrogen gas directly enters the brazing furnace 10, the second on-off valve 53 is connected with the second on-off valve 52, and if the humidified hydrogen gas is needed, it is opposite.

[0028] A water inlet 23 for adding water and a drain outlet 24 for draining water are arranged on the humidification barrel 20, the height of the drain outlet 24 is less than the height of the water inlet 23, and the drain outlet 24 is below to ensure complete drainage.

[0029] In the embodiment, the first flow regulating valve 51 is a conventional manual regulating valve, and the first and second on-off valves 52 and 53 are conventional on-off valves.

[0030] The working process of the brazing furnace humidified gas pipeline is as follows: a certain amount of pure water is added to the humidifying barrel 20, the first and second on-off valves 52 and 53 are adjusted to control the humidity of hydrogen entering the high-temperature zone, so as to control the amount of water vapor brought in, the products to be welded are placed in the furnace mouth, the products enter the brazing furnace along with the feeding chain of the brazing furnace, and the products sequentially pass through the heating zone 11, the high-temperature zone 12, the first cooling zone 13 and the second cooling zone 14, so that the products complete welding and cooling.

[0031] In summary, the present application improves the pipeline structure, connects the humidifying barrel 20 humidifying gas outlet pipe with the second gas inlet pipe, that is, the humidified gas is arranged near the outlet of the high-temperature zone 12 of the brazing furnace, so that dry hydrogen gas is used for reducing the oxidized products in the cooling zone, and the quality of the welded products is ensured.

[0032] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A humidification gas pipeline for a brazing furnace, comprising a brazing furnace and a humidification tank, characterized in that: The brazing furnace includes a heating zone, a high-temperature zone, a first cooling zone, and a second cooling zone arranged sequentially along the processing direction. The heating zone is provided with a first air inlet pipe on the side away from the high-temperature zone, and the high-temperature zone is provided with a second air inlet pipe on the side away from the heating zone. The first cooling zone and the second cooling zone are each provided with a third air inlet pipe on the side away from the high-temperature zone. The first air inlet pipe and the two third air inlet pipes are respectively connected to a hydrogen inlet pipe. The humidifying tank is equipped with a humidifying air inlet pipe and a humidifying air outlet pipe that are connected to the humidifying tank. The humidifying air inlet pipe is connected to the hydrogen inlet pipe, and the humidifying air outlet pipe is connected to the second air inlet pipe.

2. The humidifying gas pipeline for the brazing furnace as described in claim 1, characterized in that: The hydrogen inlet pipe is equipped with a first flow regulating valve, and the first inlet pipe, the humidification inlet pipe and the two third inlet pipes are all connected to the first flow regulating valve.

3. The humidifying gas pipeline for the brazing furnace as described in claim 2, characterized in that: A first switching valve is provided between the humidification air inlet pipe and the first flow regulating valve.

4. The humidifying gas pipeline for the brazing furnace as described in claim 3, characterized in that: A second switching valve is provided between the humidification outlet pipe and the second inlet pipe.

5. The humidifying gas pipeline for the brazing furnace as described in claim 4, characterized in that: The first switching valve is connected to the second switching valve.

6. The humidifying gas pipeline for the brazing furnace as described in claim 1, characterized in that: The humidifier tank is equipped with a water inlet and a drain outlet, and the height of the drain outlet is less than the height of the water inlet.

7. The humidifying gas pipeline for the brazing furnace as described in claim 1 or 6, characterized in that: The humidifier tank is equipped with a minimum liquid level line.

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