Novel atmosphere brazing furnace device

Abstract

The invention discloses a novel atmosphere brazing furnace device which comprises a furnace body and a control host, a rack is arranged at the bottom of the furnace body, the control host is arranged on the rack, a heating system, a driving system, a cooling system and a tail gas treatment system are arranged on the furnace body, and an atmosphere control system and a pressure control system are arranged on the rack. And a main control system and a process management unit are arranged in the control host. In the heating process, different temperatures and different feeding and discharging speeds can be set for the preheating area and the brazing area of the multi-temperature-area furnace tube through a parameter setting module in the process management unit, and in the furnace body heating process, the main control system can control the temperature of the furnace body according to the difference between the real-time temperature and the process target temperature. And the control parameters are further corrected by utilizing a PID algorithm, and the temperature control precision is improved, so that different moving speeds of the feeding trolley in the preheating area and the brazing area can be adjusted and set according to actual brazing requirements, and different brazing schemes are realized.

Description

Technical Field

[0001] The invention relates to the technical field of brazing furnaces, in particular to a novel atmosphere brazing furnace device. Background Art

[0002] Brazing is a welding method that heats the molten filler (brazine) with a melting point lower than the workpieces to be connected to a temperature higher than the melting point to make it fluid enough to fully fill the space between the two workpieces by capillary action (called wetting), and then join the two after solidification. Brazing furnaces are mainly used for continuous bright brazing (silver soldering or copper soldering) of various small parts (copper / iron, copper / copper, iron / iron and other matching parts).

[0003] The existing brazing furnace is divided into multiple temperature zones. The problems of multiple temperature zones are as follows: (1) There are many temperature zones, the furnace size is large, and the cost is high; (2) The volume of the brazing furnace is large, resulting in high energy consumption and high gas consumption; (3) Most of the current brazing furnaces use a mesh belt structure, and the mesh belt drives the brazing product to move in each temperature zone. This requires that the speed of the mesh belt is consistent in each temperature zone. If different speeds (times) are to be achieved in different temperature zones, this is impossible.

[0004] Therefore, the present invention will provide a novel atmosphere brazing furnace device, which uses a dual-temperature zone design and a speed-adjustable driving device to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a novel atmosphere brazing furnace device, which has only two temperature zones: a preheating zone and a brazing zone, which significantly shortens the preheating time, and is equipped with a speed-adjustable driving device to diversify the brazing scheme, thereby achieving functions superior to those of a traditional brazing furnace. At the same time, it solves the problems of high cost and large furnace size caused by multiple temperature zones, and high gas consumption caused by the large furnace body volume, as well as the technical problem that current brazing furnaces mostly use a mesh belt structure, in which the mesh belt drives the brazing product to move in each temperature zone, and different speeds (times) in different temperature zones cannot be achieved.

[0006] The present invention is implemented by the following technical scheme: a novel atmosphere brazing furnace device, comprising a furnace body and a control host, a frame is arranged at the bottom of the furnace body, a control host is arranged on the frame, the furnace body comprises a feeding chamber, a multi-temperature zone furnace tube and a discharging chamber, the multi-temperature zone furnace tube comprises a preheating zone and a brazing zone;

[0007] The furnace body is provided with a heating system, a driving system, a cooling system and an exhaust gas treatment system, the frame is provided with an atmosphere control system and a pressure control system, and the control host is provided with a main control system and a process management unit;

[0008] The process management unit has a built-in parameter setting module, and the main control system controls the heating system, the driving system, the pressure control system, the tail gas treatment system, the atmosphere control system and the cooling system through the process management unit.

[0009] Preferably, the feed chamber, the multi-temperature zone furnace tube and the discharge chamber are connected in sequence, and a transmission channel is formed inside. The outside of the tube body of the multi-temperature zone furnace tube is provided with thermal insulation refractory materials. The heating system includes thermocouples, heating elements and movable baffles, wherein multiple groups of the thermocouples and heating elements are distributed on the multi-temperature zone furnace tube, and multiple groups of the movable baffles are distributed at the connection between the feed chamber, the preheating zone, the brazing zone and the discharge chamber. The upper part of the movable baffle is fixed to the top of the furnace tube inner cavity, and a gap is left between the lower part and the bottom wall of the furnace tube inner cavity.

[0010] Preferably, the atmosphere control system includes a hydrogen inlet pipeline and a nitrogen inlet pipeline, the hydrogen inlet pipeline also includes a flow meter HFM1, a humidification tank, a pipeline valve HV1, a pipeline valve HV2 and a pipeline valve HV3, and the nitrogen inlet pipeline also includes a flow meter NFM1, a water replenishment tank, a pipeline valve NV1, a pipeline valve NV2 and a pipeline valve WV1.

[0011] Preferably, the hydrogen inlet pipeline port is connected to the flowmeter HFM1, one group of pipelines is connected to the feed chamber through the pipeline valve HV1, the other group of pipelines is connected to the humidification tank through the pipeline valve HV2, and the output port of the humidification tank is connected to the feed chamber through the pipeline valve HV3.

[0012] Preferably, the nitrogen inlet pipeline port is connected to the flowmeter NFM1, one group of pipelines is connected to the pipeline with pipeline valve HV1 through pipeline valve NV1 and connected to the feed chamber together, and the other group of pipelines is connected to the input port of the water make-up tank through pipeline valve NV2, and the output port of the water make-up tank is connected to the humidification tank through pipeline valve WV1.

[0013] Preferably, the driving system includes a driving device, a tension adjusting device, a feeding trolley, a feed level sensor and a discharge level sensor, which are arranged at the rear of the furnace body, and the feeding trolley is located in a transmission channel inside the furnace body.

[0014] Preferably, the driving device pulls the wire rope or chain through the driving motor to drive the feeding trolley to move in the furnace body. The tension adjustment device is arranged below the driving device to tension the wire rope or chain. The feed level sensor is located in the feed chamber, and the discharge level sensor is located in the discharge chamber.

[0015] Preferably, the pressure control system includes an exhaust pressure tank and a pipeline valve OV1. After the entire furnace body is sealed, the intake air passes through the furnace body and then enters the exhaust pressure tank through the pipeline valve OV1. Water is stored inside the exhaust pressure tank, and its liquid level is marked and controlled according to the pressure requirement in the furnace.

[0016] Preferably, the exhaust gas treatment system includes an igniter, an oxygen analyzer, a hydrogen analyzer and a pipeline valve OV2. The hydrogen analyzer is used to read the hydrogen content in the exhaust gas. When the reading reaches or exceeds the target value, the main control system controls the igniter to start igniting the hydrogen in the exhaust gas.

[0017] Preferably, the cooling system comprises cooling water jackets, and two groups of the cooling water jackets are respectively arranged on the periphery of the feed chamber and the discharge chamber, and the cooling water jackets are connected to external cooling water through ports for circulating cooling and temperature reduction.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention can set different temperatures and feeding and discharging speeds for the preheating zone and brazing zone of the multi-temperature zone furnace tube respectively through the parameter setting module in the process management unit. During the heating process of the furnace body, the main control system can further correct the control parameters using the PID algorithm according to the gap between the real-time temperature and the process target temperature to improve the temperature control accuracy. When the furnace temperature reaches the specified temperature, the main control system controls the start of the driving device, and uses the driving motor of the driving device to rotate the motor output end at the set speed parameter, and pulls the feeding trolley to slide in the transmission channel of the furnace tube through a wire rope or a chain. Therefore, the different moving speeds of the feeding trolley in the preheating zone and the brazing zone can be adjusted according to the actual brazing requirements, and the temperature settings of each temperature zone in the multi-temperature zone furnace tube are coordinated to shorten the preheating time to achieve different brazing schemes, and a more compact kiln structure can be designed, which is particularly convenient for complex small-batch process tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A system structure block diagram provided by the present invention;

[0021] Figure 2 It is a schematic diagram of the atmosphere control system of the present invention;

[0022] Figure 3 It is a schematic diagram of the furnace structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the pressure control system and tail gas treatment system of the present invention;

[0024] Figure 5 It is a schematic diagram of the rate adjustment parameters of the feeding and discharging device of the present invention.

[0025] In the figure: 1. furnace body; 101. feeding chamber; 102. multi-temperature zone furnace tube; 103. discharging chamber; 2. control host; 201. main control system; 202. process management unit; 3. heating system; 301. thermocouple; 302. heating element; 303. movable baffle; 4. driving system; 401. driving device; 402. tension adjusting device; 403. feeding trolley; 404. feeding position sensor; 405. discharging position sensor; 5. pressure control system; 501. exhaust pressure tank; 6. tail gas treatment system; 601. igniter; 602. oxygen analyzer; 603. hydrogen analyzer; 7. atmosphere control system; 701. humidifying tank; 702. water supply tank; 8. cooling system; 801. cooling water jacket. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] See also Figure 1 - Figure 5 , a novel atmosphere brazing furnace device of the present embodiment, a furnace body 1 and a control host 2, a frame is arranged at the bottom of the furnace body 1, a control host 2 is arranged on the frame, the furnace body 1 includes a feeding chamber 101, a multi-temperature zone furnace tube 102 and a discharging chamber 103, the multi-temperature zone furnace tube 102 includes a preheating zone and a brazing zone, a heating system 3, a driving system 4, a cooling system 8 and an exhaust gas treatment system 6 are arranged on the furnace body 1, an atmosphere control system 7 and a pressure control system 5 are arranged on the frame, the control host 2 is built-in with a main control system 201 and a process management unit 202, the process management unit 202 has a built-in parameter setting module, and the main control system 201 controls the heating system 3, the driving system 4, the pressure control system 5, the exhaust gas treatment system 6, the atmosphere control system 7 and the cooling system 8 through the process management unit 202;

[0028] Specifically, the staff calls up the process management unit 202 on the control host 2, and sets the temperature, operating time, furnace pressure, furnace outlet temperature, oxygen content in the furnace, hydrogen content target value, etc. of each temperature zone through the parameter setting module. The process management unit 202 can also store the operating data of the main control system 201, such as time, temperature, pressure, speed, oxygen content, hydrogen content, product model, operator, etc., to facilitate the staff to make targeted calls according to different products later.

[0029] Further, the heating system 3 includes a thermocouple 301, a heating element 302 and a movable baffle 303, wherein the feed chamber 101, the multi-temperature zone furnace tube 102 and the discharge chamber 103 are connected in sequence, and a transmission channel is formed inside, a heat-insulating refractory material is arranged outside the tube body of the multi-temperature zone furnace tube 102, a plurality of groups of thermocouples 301 and heating elements 302 are distributed on the multi-temperature zone furnace tube 102, a plurality of groups of movable baffles 303 are distributed at the connection between the feed chamber 101, the preheating zone, the brazing zone and the discharge chamber 103, the upper part of the movable baffle 303 is fixed to the top of the furnace tube inner cavity, and a gap is left between the lower part and the bottom wall of the furnace tube inner cavity;

[0030] Specifically, the main control system 201 receives the heating process issued by the process management unit 202, controls the output of the heating element 302 by controlling the power switch device, and then controls the heating temperature of the preheating zone and the brazing zone in the multi-temperature zone furnace tube 102. At the same time, the thermocouple 301 set in the multi-temperature zone furnace tube 102 can upload the real-time temperature in the furnace tube to the main control system 201. The main control system 201 further corrects the control parameters using the PID algorithm according to the difference between the real-time temperature and the process target temperature, thereby improving the temperature control accuracy.

[0031] In addition, in the heating system 3, in order to reduce the heat dissipation of the multi-temperature zone furnace tube 2, a heat-insulating refractory material is arranged outside the furnace tube. In order to prevent temperature crosstalk between different areas, a movable baffle 303 is respectively arranged between the feed chamber 101 and the preheating zone, between the preheating zone and the brazing zone, and between the brazing zone and the discharge chamber 103. The upper part of the movable baffle 303 is fixed to the top wall of the inner cavity of the furnace tube, and a gap of 1-10mm is left below for atmosphere circulation. When the feeding trolley 403 moves by, the baffle can be lifted up by the trolley without hindering the operation of the trolley.

[0032] It should be noted that the discharge chamber 103 may also be provided with a thermocouple 301. When the temperature of the discharge chamber 103 does not reach the set discharge temperature, the discharge chamber 103 cannot be opened, which can prevent the discharge temperature from being too high and the product from being oxidized.

[0033] Further, the atmosphere control system 7 includes a hydrogen inlet pipeline and a nitrogen inlet pipeline, the hydrogen inlet pipeline also includes a flow meter HFM1, a humidifying tank 701, a pipeline valve HV1, a pipeline valve HV2, a pipeline valve HV3 and a pressure gauge, and the nitrogen inlet pipeline also includes a flow meter NFM1, a water supply tank 702, a pipeline valve NV1, a pipeline valve NV2 and a pipeline valve WV1;

[0034] Specifically, the hydrogen inlet pipeline port is connected to the flow meter HFM1, one group of pipelines is connected to the feed chamber 101 through the pipeline valve HV1, and the other group of pipelines is connected to the humidification tank 701 through the pipeline valve HV2, and the output port of the humidification tank 701 is connected to the feed chamber 101 through the pipeline valve HV3; the nitrogen inlet pipeline port is connected to the flow meter NFM1, one group of pipelines is connected to the pipeline with the pipeline valve HV1 through the pipeline valve NV1 and connected to the feed chamber 101 together, and the other group of pipelines is connected to the input port of the water replenishment tank 702 through the pipeline valve NV2, and the output port of the water replenishment tank 702 is connected to the humidification tank 701 through the pipeline valve WV1;

[0035] Specifically, the flowmeter HFM1 and the flowmeter NFM1 can use a manually controlled glass rotor flowmeter or a mass flowmeter with automatic control capability. When the glass rotor flowmeter is used, the flowmeter is manually adjusted to reach the process requirement value. When the mass flowmeter is used, the main control system 201 receives the flow process parameters issued by the process management unit 202, sets the opening of the mass flowmeter to complete automatic flow control. When brazing different products, dry hydrogen may be needed, or wet hydrogen may be used.

[0036] Specifically, when dry hydrogen is used, the pipeline valve HV1 is opened, and the pipeline valves HV2 and HV3 are closed. The valve operation can be completed manually or automatically through the main control system 201. When wet hydrogen is used, the pipeline valve HV1 is closed, and the pipeline valves HV2 and HV3 are opened, so that the hydrogen enters the furnace body 1 after being humidified by the humidification tank 701. The humidification tank 701 stores water, and the water level should be above the air inlet of the pipeline valve HV2 and lower than the air outlet of the pipeline valve HV3.

[0037] Specifically, when the amount of water in the humidifying tank 701 is insufficient, the humidifying tank 701 can be replenished with water through the water replenishing tank 702. An appropriate amount of water is added through the water filling port on the top of the water replenishing tank 702, the water filling port cover is tightly sealed, the pipeline valve NV2 is opened, and the pipeline valve WV1 is opened. At this time, the water in the water replenishing tank 702 will be pressed into the humidifying tank 701 by nitrogen. When the water level in the humidifying tank 701 reaches the requirement, the pipeline valve WV1 is closed, and then the pipeline valve NV2 is closed to complete the water replenishment. This water replenishment method can prevent hydrogen leakage in the humidifying tank 701 during water replenishment.

[0038] Further, the driving system 4 includes a driving device 401, a tension adjusting device 402, a feeding trolley 403, a feed position sensor 404 and a discharge position sensor 405 arranged at the rear of the furnace body 1, the feeding trolley 403 is located in the transmission channel in the furnace body 1, the driving device 401 drives the wire rope or chain through the driving motor to drive the feeding trolley 403 to move in the furnace body 1, the tension adjusting device 402 is arranged below the driving device 401, and is used to tension the wire rope or chain, the feed position sensor 404 is located in the feed chamber 101, and the discharge position sensor 405 is located in the discharge chamber 103;

[0039] Specifically, the driving device 401 pulls the steel wire rope or chain to make the feeding trolley 403 move in the furnace body 1, and the tension adjusting device 402 can tighten the steel wire rope or chain to prevent the chain rope from expanding and loosening when the furnace is at a high temperature. When the feeding trolley 403 is located in the feeding chamber 101 and reaches the feeding berth, the feeding position sensor 404 is activated, and the trolley can load and move forward (at this time, the motor of the driving device 401 rotates forward). When the feeding trolley 403 is located in the discharging chamber 103 and reaches the discharging berth, the discharging position sensor 405 is activated, and the trolley can unload and retreat (at this time, the motor of the driving device 401 rotates reversely);

[0040] Specifically, the main control system 201 can control the forward or backward speed of the feeding trolley 403 in different areas according to the process requirements, thereby achieving the multi-temperature zone heating brazing effect of the traditional mesh belt furnace;

[0041] The traditional mesh belt furnace temperature control process table is as follows:

[0042]

[0043]

[0044] In the above table, the traditional mesh belt furnace brazing temperature control process is that the 1-4 temperature zone is the heating zone, which heats the product to 750°C for 8 minutes, and then the 5th temperature zone is the preheating zone, the preheating time is 2 minutes, and then enters the brazing zone of the 6-7 temperature zone, the brazing time is 4 minutes, and finally cools down to 100°C after 6 minutes.

[0045] In the present application, the above effects can be achieved by setting different speeds of the feeding trolley 403 in the driving system 4 and different temperatures of the multi-temperature zone furnace tube 102;

[0046] Specifically, the length from the feed chamber 101 to the middle of the preheating zone is 400 mm, the length from the preheating zone to the middle of the brazing zone is 400 mm, and the length from the brazing zone to the discharge chamber 103 is 300 mm. To achieve the same brazing effect, the following settings are made: the entry speed into the preheating zone is 50 mm / min (400 mm / 8 minutes); the pulling speed out of the brazing zone is 50 mm / min (300 mm / 6 minutes); the speed of entering the brazing zone is 400 mm / min, the temperature of the preheating zone is 770 degrees Celsius, and the preheating holding time is 2 minutes; the brazing temperature is 800 degrees, and the brazing holding time is 4 minutes;

[0047] In summary, different brazing processes can be realized by controlling the moving speed of the feeding trolley 403 in different temperature zones, making the kiln structure compact, which is particularly convenient for complex small-batch process tests.

[0048] Furthermore, the pressure control system 5 includes an exhaust pressure tank 501 and a pipeline valve OV1. After the entire furnace body 1 is sealed, the intake air passes through the furnace body 1 and then enters the exhaust pressure tank 501 through the pipeline valve OV1. The exhaust pressure tank 501 stores water, and its liquid level is marked and controlled according to the pressure requirement in the furnace. Compared with the traditional solenoid valve, this type has the risk of failure, but is safe, reliable and low cost.

[0049] Furthermore, the exhaust gas treatment system 6 includes an igniter 601, an oxygen analyzer 602, a hydrogen analyzer 603 and a pipeline valve OV2. The hydrogen analyzer 603 is used to read the hydrogen content in the exhaust gas. When the reading reaches or exceeds the target value, the main control system 201 controls the igniter 601 to start igniting the hydrogen in the exhaust gas; when the hydrogen analyzer reading reaches or exceeds the target value, the igniter starts to ignite the hydrogen in the exhaust gas.

[0050] Furthermore, the cooling system 8 includes cooling water jackets 801. Two groups of cooling water jackets 801 are respectively arranged on the periphery of the feed chamber 101 and the discharge chamber 103. The cooling water jackets 801 are connected to external cooling water through ports for circulating cooling.

[0051] Working principle: The staff sets various working parameters of the brazing atmosphere furnace through the process management unit 202, and then closes the feed and discharge ports on both sides thereof, and introduces nitrogen and hydrogen into the furnace body 1 through the atmosphere control system 7. When brazing different products, dry hydrogen or wet hydrogen may be used. When using dry hydrogen, the pipeline valve HV1 is opened, and the pipeline valves HV2 and HV3 are closed. The valve operation can be completed manually or automatically through the main control system 201. When using wet hydrogen, the pipeline valve HV1 is closed, and the pipeline valves HV2 and HV3 are opened, so that hydrogen The gas is humidified by the humidification tank 701 and then enters the furnace body 1. When the furnace temperature reaches the specified temperature, the main control system 201 controls the drive system 4 to control the rotation of the drive motor of the drive device 401 with the set speed parameters, and pulls the feeding trolley 403 to slide in the transmission channel of the furnace tube through a wire rope or a chain. Therefore, the different moving speeds of the feeding trolley 403 in the preheating zone and the brazing zone can be adjusted according to the actual brazing requirements, and the temperature settings of each temperature zone in the multi-temperature zone furnace tube 102 can be coordinated to achieve different brazing schemes, and a more compact kiln structure can be designed, which is particularly convenient for complex small-batch process tests.

[0052] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A novel atmosphere brazing furnace device, comprising a furnace body (1) and a control host (2), wherein a frame is provided at the bottom of the furnace body (1), and a control host (2) is provided on the frame, wherein: The furnace body (1) comprises a feed chamber (101), a multi-temperature zone furnace tube (102) and a discharge chamber (103); the multi-temperature zone furnace tube (102) comprises a preheating zone and a brazing zone; The furnace body (1) is provided with a heating system (3), a driving system (4), a cooling system (8) and an exhaust gas treatment system (6); the frame is provided with an atmosphere control system (7) and a pressure control system (5); the control host (2) is provided with a main control system (201) and a process management unit (202); The process management unit (202) has a built-in parameter setting module, and the main control system (201) controls the heating system (3), the drive system (4), the pressure control system (5), the tail gas treatment system (6), the atmosphere control system (7) and the cooling system (8) through the process management unit (202).

2. A novel atmosphere brazing furnace device according to claim 1, characterized in that: The feed chamber (101), the multi-temperature zone furnace tube (102) and the discharge chamber (103) are connected in sequence and a transmission channel is formed inside. The tube body of the multi-temperature zone furnace tube (102) is provided with a heat-insulating refractory material outside. The heating system (3) comprises a thermocouple (301), a heating element (302) and a movable baffle (303), wherein a plurality of groups of the thermocouples (301) and the heating element (302) are distributed on the multi-temperature zone furnace tube (102), a plurality of groups of the movable baffles (303) are distributed at the connection points between the feed chamber (101), the preheating zone, the brazing zone and the discharge chamber (103), the upper part of the movable baffle (303) is fixed to the top of the furnace tube inner cavity, and a gap is left between the lower part and the bottom wall of the furnace tube inner cavity.

3. A novel atmosphere brazing furnace device according to claim 1, characterized in that: The atmosphere control system (7) comprises a hydrogen inlet pipeline and a nitrogen inlet pipeline, wherein the hydrogen inlet pipeline further comprises a flow meter HFM1, a humidifying tank (701), a pipeline valve HV1, a pipeline valve HV2 and a pipeline valve HV3, and the nitrogen inlet pipeline further comprises a flow meter NFM1, a water replenishment tank (702), a pipeline valve NV1, a pipeline valve NV2 and a pipeline valve WV1.

4. A novel atmosphere brazing furnace device according to claim 3, characterized in that: The hydrogen inlet pipeline port is connected to the flow meter HFM1, one group of pipelines is connected to the feed chamber (101) through the pipeline valve HV1, and the other group of pipelines is connected to the humidification tank (701) through the pipeline valve HV2, and the output port of the humidification tank (701) is connected to the feed chamber (101) through the pipeline valve HV3.

5. A novel atmosphere brazing furnace device according to claim 3, characterized in that: The nitrogen inlet pipeline port is connected to the flow meter NFM1, one group of pipelines is connected to the pipeline with pipeline valve HV1 through pipeline valve NV1 and connected to the feed chamber (101) together, and the other group of pipelines is connected to the input port of the water replenishment tank (702) through pipeline valve NV2, and the output port of the water replenishment tank (702) is connected to the humidification tank (701) through pipeline valve WV1.

6. A novel atmosphere brazing furnace device according to claim 1, characterized in that: The driving system (4) comprises a driving device (401) arranged at the rear of the furnace body (1), a tension adjusting device (402), a feeding trolley (403), a feed position sensor (404) and a discharge position sensor (405), wherein the feeding trolley (403) is located in a transmission channel inside the furnace body (1).

7. A novel atmosphere brazing furnace device according to claim 6, characterized in that: The driving device (401) drives the feeding trolley (403) to move in the furnace body (1) by pulling the steel wire rope or chain through the driving motor; the tension adjustment device (402) is arranged below the driving device (401) and is used to tension the steel wire rope or chain; the feed level sensor (404) is located in the feed chamber (101); and the discharge level sensor (405) is located in the discharge chamber (103).

8. A novel atmosphere brazing furnace device according to claim 1, characterized in that: The pressure control system (5) comprises an exhaust pressure tank (501) and a pipeline valve OV1. After the entire furnace body (1) is sealed, the intake air passes through the furnace body (1) and then enters the exhaust pressure tank (501) through the pipeline valve OV1. The exhaust pressure tank (501) stores water, and its liquid level is marked and controlled according to the pressure requirement in the furnace.

9. A novel atmosphere brazing furnace device according to claim 1, characterized in that: The exhaust gas treatment system (6) comprises an igniter (601), an oxygen analyzer (602), a hydrogen analyzer (603) and a pipeline valve OV2. The hydrogen analyzer (603) is used to read the hydrogen content in the exhaust gas. When the reading reaches or exceeds the target value, the main control system (201) controls the igniter (601) to start igniting the hydrogen in the exhaust gas.

10. A novel atmosphere brazing furnace device according to claim 1, characterized in that: The cooling system (8) comprises cooling water jackets (801), wherein two groups of cooling water jackets (801) are respectively arranged on the periphery of the feed chamber (101) and the discharge chamber (103), and the cooling water jackets (801) are connected to external cooling water through ports for circulating cooling and temperature reduction.

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