Segmented sealing type aluminum brazing furnace
By dividing the aluminum brazing furnace into a three-chamber integrated structure of preparation chamber, brazing chamber and cooling chamber, and adopting a sealed furnace door design and precise furnace temperature control, the problems of high cost of mesh belt and uneven furnace temperature are solved, achieving low energy consumption and high temperature control accuracy in aluminum brazing.
Patent Information
- Application Number
- CN202423312097.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing aluminum brazing furnaces have high costs, high energy consumption, and uneven furnace temperatures, resulting in high maintenance costs and low temperature control accuracy.
A segmented sealed aluminum brazing furnace is designed, which integrates the preparation chamber, brazing chamber, and cooling chamber into a three-chamber integrated structure. The furnace door is designed for a sealed environment, and the furnace temperature is precisely controlled by heating elements and cooling water jacket, avoiding mesh belt heating and open return path.
It reduced energy consumption and equipment maintenance costs, improved furnace temperature uniformity and temperature control accuracy, and achieved a high-purity nitrogen environment.
Smart Images
Figure CN223848259U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of industrial brazing furnace technology, specifically relating to a segmented sealed aluminum brazing furnace. Background Technology
[0002] Currently, conventional aluminum brazing furnaces consist of a closed-loop mesh belt system comprised of an upper muffle sealing section and an open return section. The upper muffle sealing section is composed of a front curtain-type muffle, a brazing heating section muffle, a cooling section muffle, and a rear curtain chamber muffle. The open return section consists of driven rollers, a feeding section, a discharging section, driven rollers, return idlers, and a drive roller. The mesh belt is driven in the open section. Because the temperature of the heating section muffle exceeds 600℃, the entire mesh belt must be selected based on the operating conditions of the heating section. This results in a high price for the mesh belt. Furthermore, the repeated heating and cooling during use leads to high energy consumption, resulting in significant maintenance costs for the mesh belt and heating muffles, and limiting the lifespan of the mesh belt. Additionally, due to the open return section, the furnace temperature control accuracy is low, the furnace temperature is uneven, heat loss is high, and nitrogen consumption is large. Utility Model Content
[0003] Therefore, the purpose of this utility model is to provide a segmented sealed aluminum brazing furnace and a heating and cooling method to overcome the above problems or at least partially solve or alleviate them.
[0004] This utility model proposes a segmented sealed aluminum brazing furnace, comprising:
[0005] The feeding section is equipped with a track.
[0006] A preparation chamber is located at the front end of the feeding section, and a first automatic door is provided at the rear end of the preparation chamber. The track extends into the preparation chamber and exits from the preparation chamber.
[0007] The brazing chamber is located at the front end of the preparation chamber, and the rear end of the brazing chamber is connected to the front end of the preparation chamber. The brazing chamber is equipped with a furnace lining, and the front and rear ends of the furnace lining are respectively equipped with a first furnace door and a second furnace door. A track extending from the preparation chamber extends to the furnace lining and exits from inside the furnace lining. The furnace lining is equipped with a material rack and multiple sets of heating elements.
[0008] A cooling chamber is located at the front end of the brazing chamber, and the rear end of the cooling chamber is connected to the front end of the brazing chamber. A cooling water jacket is provided inside the cooling chamber, and a second automatic door is provided at the front end of the cooling chamber. A track extending from the furnace lining extends into the cooling chamber and exits from the cooling chamber.
[0009] The discharge section is located at the front end of the cooling chamber, and the track extending from the cooling chamber extends to the discharge section and exits from the discharge section;
[0010] A first trolley runs on the track in the feeding section, the preparation room and the brazing chamber;
[0011] A second trolley runs on the track in the brazing chamber, the cooling chamber and the discharging section.
[0012] The utility model also has the following optional features.
[0013] Optionally, a tooling is further included, the tooling is used for carrying brazing material, and the tooling is matched with the rack.
[0014] Optionally, the first furnace door and the second furnace door are respectively provided with a retreat-stop cylinder for blocking the tooling, and the first trolley and the second trolley are both provided with a ratchet wheel which is unlocked rearward.
[0015] Optionally, a first feeding gear is arranged on the feeding section, a second feeding gear is arranged in the preparation room, a third feeding gear is arranged in the rear end of the brazing chamber, and a rack is arranged on the first trolley and can be engaged with the first feeding gear, the second feeding gear and the third feeding gear through the rack.
[0016] Optionally, a first discharging gear is arranged in the front end of the brazing chamber, a second discharging gear is arranged in the cooling chamber, a third discharging gear is arranged on the discharging section, and a rack is arranged on the second trolley and can be engaged with the first discharging gear, the second discharging gear and the third discharging gear through the rack.
[0017] Optionally, an oxygen analysis detection point is arranged in the preparation room, the brazing chamber and the cooling chamber.
[0018] Optionally, a nitrogen purging pipeline is arranged on the inner side of the first automatic door of the preparation room and the second automatic door of the cooling chamber.
[0019] Optionally, a smoke exhaust treatment system is arranged on the brazing chamber.
[0020] Compared with the prior art, the utility model has the following beneficial effects:
[0021] The sectional sealing type aluminum brazing furnace sets the preparation room, the brazing chamber and the cooling chamber as a three-chamber integrated structure, so that the furnace doors between the three chambers are opened and closed in a sealed environment, energy consumption can be reduced as much as possible, a high-purity nitrogen environment in the brazing section is ensured, the furnace temperature can be accurately controlled, the furnace temperature is uniform during brazing, the use of a conveying mesh belt to convey the material is avoided, the mesh belt is not repeatedly heated and frozen, and energy consumption and equipment maintenance cost are reduced. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 This is a schematic diagram of the full cross-sectional structure of the segmented sealed aluminum brazing furnace of this utility model.
[0023] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure at point AA;
[0024] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure at point BB;
[0025] Figure 4 yes Figure 2 A partially enlarged structural diagram of the feeding section and preparation chamber;
[0026] Figure 5 yes Figure 2 A partially enlarged structural diagram of the brazing chamber;
[0027] Figure 6 yes Figure 2 A partially enlarged structural diagram of the cooling chamber and discharge section;
[0028] Figure 7 yes Figure 3 A partially enlarged structural diagram of the brazing chamber.
[0029] In the above diagram: 1. Feeding section; 101. First feeding gear; 2. Track; 3. Preparation chamber; 301. First automatic door; 302. Second feeding gear; 4. Brazing chamber; 401. Third feeding gear; 402. First discharge gear; 5. Furnace lining; 501. First furnace door; 502. Second furnace door; 503. Material rack; 504. Heating element; 6. Cooling chamber; 601. Cooling water jacket; 602. Second automatic door; 603. Second discharge gear; 7. Discharge section; 701. Third discharge gear; 8. First transfer trolley; 9. Second transfer trolley; 10. Tooling; 11. Brazing material; 12. Nitrogen purging pipeline; 13. Fume treatment system.
[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Detailed Implementation
[0031] Example 1
[0032] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The utility model discloses an embodiment proposes a sectional sealed type aluminum brazing furnace, include: feeding section 1, preparatory chamber 3, brazing chamber 4, cooling chamber 6, discharge section 7, first transfer trolley 8 and second transfer trolley 9, wherein, the track 2 is arranged on feeding section 1, preparatory chamber 3 is arranged at the front end of feeding section 1, and the rear end of preparatory chamber 3 is provided with first automatic door 301, the track 2 extends to preparatory chamber 3 and is worn from preparatory chamber 3, brazing chamber 4 is arranged at the front end of preparatory chamber 3, and the rear end of brazing chamber 4 is communicated with the front end of preparatory chamber 3, and the furnace lining 5 is arranged in brazing chamber 4, and the front and rear ends of furnace lining 5 are provided with first furnace door 501 and second furnace door 502 respectively, and the track 2 worn from preparatory chamber 3 extends to furnace lining 5 and is worn from furnace lining 5, and the rack 503 and multiple groups of heating elements 504 are arranged in furnace lining 5, cooling chamber 6 is arranged at the front end of brazing chamber 4, and the rear end of cooling chamber 6 is communicated with the front end of brazing chamber 4, and cooling water interlayer 601 is arranged in cooling chamber 6, and the front end of cooling chamber 6 is provided with second automatic door 602, and the track 2 worn from furnace lining 5 extends to cooling chamber 6 and is worn from cooling chamber 6, discharge section 7 is arranged at the front end of cooling chamber 6, and the track 2 worn from cooling chamber 6 extends to discharge section 7 and is worn from discharge section 7, first transfer trolley 8 runs on the track 2 in feeding section 1, preparatory chamber 3 and brazing chamber 4, and second transfer trolley 9 runs on the track 2 on brazing chamber 4, cooling chamber 6 and discharge section 7.
[0033] Wherein, the furnace door of first automatic door 301, first furnace door 501, second furnace door 502 and second automatic door 602 is made of stainless steel plate, and is provided with silicon rubber sealing ring around, and has lifting system composed of air cylinder or motor, chain wheel and chain, and can be individually lifted to realize closing and sealing, and is provided with travel switch on the upper and lower to constrain management, and the sealing ring is pressed tightly by mechanical device after the furnace door is closed in place. Cooling water circulating pipeline is connected in the cooling water clamping 601 of cooling chamber 6, and cooling chamber 6 is cooled.
[0034] Furnace lining 5 is composed of side wall lining, furnace top lining and furnace bottom lining, and the side wall lining and furnace top lining are composed of 100mm thick backing blanket, 1260 ceramic fiber module 300mm and 400mm thick insulation layer. The furnace bottom lining is built by high alumina brick, clay brick and silica brick.
[0035] The brazing chamber 4 is divided into five heating zones, and the heating elements 504 are arranged in the two side walls and the furnace bottom of the furnace lining 5. The heating elements 504 are all designed as radiant tube heating to ensure the safety and scientificity of the furnace sealing. The input power of each heating zone has great flexibility, and a separate power regulator is used to balance the heat demand of each brazing zone, and the furnace temperature uniformity is controlled within ±5℃.
[0036] In use, the first transfer trolley 8 starts to move forward along the track 2 after loading the brazing material 11 in the loading section 1, the first automatic door 301 at the rear end of the preparation chamber 3 is opened, the first transfer trolley 8 completely enters the preparation chamber 3, and then the first automatic door 301 is closed, the first transfer trolley 8 moves forward in the preparation chamber 3 along the track 2 and is preheated, when the first transfer trolley 8 enters the rear end of the brazing chamber 4, the first furnace door 501 at the rear end of the furnace lining 5 is opened, the first transfer trolley 8 enters the furnace lining 5 along the track 2 and leaves the brazing material 11, then returns along the original path, the first automatic door 301 is closed, and the brazing material 11 is heat treated in the furnace lining 5. After the heat treatment is completed, the second furnace door 502 at the front end of the furnace lining 5 is opened, the second transfer trolley 9 enters the furnace lining 5 along the track 2 and carries the brazing material 11, then enters the cooling chamber 6, the second furnace door 502 is closed, and after the brazing material 11 is cooled in the cooling chamber 6, the second transfer trolley 9 carrying the brazing material 11 moves forward along the track 2 to the discharging section 7 to wait for unloading.
[0037] Example 2
[0038] Reference Figure 4 、 Figure 5 and Figure 6 On the basis of example 1, the tooling 10 is further included, which is used to carry the brazing material 11, and the tooling 10 is matched with the rack 503.
[0039] The brazing material 11 is fixed on the tooling 10, the first transfer trolley 8 sends the tooling 10 from the loading section 1 to the rack 503 in the brazing chamber 4 through the preparation chamber 3, then the first transfer trolley 8 exits from the brazing chamber 4 along the original path, the brazing material 11 on the tooling 10 is heat treated on the rack 503, then the second transfer trolley 8 enters the rack 503 in the brazing chamber 4 to drag the tooling 10 and the brazing material 11 out of the brazing chamber 4 to the cooling chamber 6 for cooling, and then to the discharging section 7.
[0040] Example 3
[0041] On the basis of example 2, the outer sides of the first furnace door 501 and the second furnace door 502 are respectively provided with a retreat-stop cylinder for blocking the tooling 10, and the first transfer trolley 8 and the second transfer trolley 9 are respectively provided with a rearward-unlocking ratchet.
[0042] After the first transfer trolley 8 carries the tooling 10, the tooling 10 is sent forward into the rack 503 in the brazing chamber 4 through the ratchet, the retreat stop cylinder outside the first furnace door 501 is extended, the first transfer trolley 8 starts to retreat backward, the ratchet is unlocked backward, the first transfer trolley 8 starts to separate from the tooling 10, and finally the first transfer trolley 8 exits the brazing chamber 4, and the tooling 10 is blocked by the retreat stop cylinder and stays on the rack 503. When the second transfer trolley 8 retreats into the rack 503 in the brazing chamber 4, the ratchet on the second transfer trolley 9 is unlocked backward, the second transfer trolley 9 enters directly below the rack 503, the second transfer trolley 9 starts to move forward, the tooling 10 is pushed forward through the ratchet, the tooling 10 is separated from the rack 503 and completely carried on the second transfer trolley 9, and finally is sent forward out of the brazing chamber 4 and into the cooling chamber 6.
[0043] Example 4
[0044] Reference Figure 4 and Figure 5 On the basis of example 2, the first feeding gear 101 is arranged on the feeding section 1, the second feeding gear 302 is arranged in the preparation chamber 3, the third feeding gear 401 is arranged in the rear end of the brazing chamber 4, and the rack is arranged on the first transfer trolley 8 and can be engaged with the first feeding gear 101, the second feeding gear 302 and the third feeding gear 401.
[0045] Since it is difficult to install a power device on the first transfer trolley 8 due to the high temperature in the preparation chamber 3 and the brazing chamber 4, the rack is arranged on the lower side of the frame of the first transfer trolley 8, the first transfer trolley 8 is engaged with the first feeding gear 101 on the feeding section 1, the second feeding gear 302 in the preparation chamber 3 and the third feeding gear 401 in the rear end of the brazing chamber 4 through the rack, the first feeding gear 101, the second feeding gear 302 and the third feeding gear 401 are all connected with the external motor through the rotating shaft, and the first transfer trolley 8 is driven to move by the external motor.
[0046] Example 5
[0047] Reference Figure 5 and Figure 6 On the basis of example 2, the first feeding gear 101 is arranged on the feeding section 1, the second feeding gear 302 is arranged in the preparation chamber 3, the third feeding gear 401 is arranged in the rear end of the brazing chamber 4, and the rack is arranged on the first transfer trolley 8 and can be engaged with the first feeding gear 101, the second feeding gear 302 and the third feeding gear 401.
[0048] Since it is difficult to install power device on the second transfer trolley 9 due to high temperature in the brazing chamber 4 and the cooling chamber 6, a rack is arranged on the lower side of the frame of the second transfer trolley 9, and the second transfer trolley 9 is in alternate engagement with the first discharge gear 402 in the rear end of the brazing chamber 4, the second discharge gear 603 in the cooling chamber 6 and the third discharge gear 701 on the discharge section 7 through the rack, and the first discharge gear 402, the second discharge gear 603 and the third discharge gear 701 are all in transmission connection with external motors through rotating shafts, and are driven to rotate by the external motors, thereby driving the second transfer trolley 9 to move.
[0049] Example 6
[0050] On the basis of example 1, oxygen analysis detection points are arranged in the preparation chamber 3, the brazing chamber 4 and the cooling chamber 6.
[0051] Each oxygen analysis detection point is connected with a set of high-precision oxygen concentration online monitoring system, and can accurately measure the atmosphere in the furnace in real time.
[0052] Example 7
[0053] With reference to Figure 1 , Figure 4 and Figure 6 , on the basis of example 1, nitrogen blowing pipelines 12 are arranged on the inner sides of the first automatic door 301 of the preparation chamber 3 and the second automatic door 602 of the cooling chamber 6.
[0054] The nitrogen blowing pipelines 12 are arranged around the furnace door of the brazing chamber 4, and nitrogen air knives are arranged in the first automatic door 301 and the second automatic door 602, which are blown and emptied when the first automatic door 301 or the second automatic door 602 is opened, thereby realizing the air sealing function.
[0055] Example 8
[0056] With reference to Figure 1 and Figure 4 , Figure 5 and Figure 6 , on the basis of example 1, a smoke treatment system 13 is arranged on the brazing chamber 4.
[0057] The smoke treatment system 13 is used for filtering and discharging the gas discharged from the brazing chamber 4, and adopts a conventional filtering and discharging structure, and is provided with a filtering chamber, an exhaust fan and a pipeline.
[0058] Example 9
[0059] On the basis of the above-mentioned embodiments, the utility model discloses the preparation room 3, the brazing chamber 4 and the cooling chamber 6 are designed as integrated sealing structure, this integrated sealing structure is divided into 3 independent sealing space by first furnace door 501 and second furnace door 502, this design guarantees that the brazing chamber furnace door opens in a sealed big environment, guarantees the brazing section high purity nitrogen gas environment, and the minimum energy consumption, the exhaust tail gas is also the least.
[0060] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of the change or replacement within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims. The components and structures not described in detail in the embodiment are the known components and common structures or common means in the industry, which are not described one by one here.
Claims
1. A sectionalized sealed aluminum brazing furnace characterized by, The utility model relates to a kind of brazing device, including: The upper section (1) is provided with track (2) on the upper section (1); Preparation room (3), the preparation room (3) is arranged at the front end of the upper section (1), the rear end of the preparation room (3) is provided with first automatic door (301), the track (2) extends into preparation room (3), and from preparation room (3) inside wear out; Brazing chamber (4), the brazing chamber (4) is arranged at the front end of the preparation room (3), the rear end of the brazing chamber (4) is connected with the front end of the preparation room (3), and the brazing chamber (4) is provided with furnace lining (5) in it, the front and rear ends of the furnace lining (5) are provided with first furnace door (501) and second furnace door (502) respectively, and the track (2) that extends from preparation room (3) extends into furnace lining (5), and from furnace lining (5) inside wear out;Furnace lining (5) is provided with rack (503) and multiple groups of heating elements (504) in it; Cooling chamber (6), the cooling chamber (6) is arranged at the front end of the brazing chamber (4), the rear end of the cooling chamber (6) is connected with the front end of the brazing chamber (4), and the cooling chamber (6) is provided with cooling water interlayer (601) in it, the front end of the cooling chamber (6) is provided with second automatic door (602), and the track (2) that extends from furnace lining (5) extends into cooling chamber (6), and from cooling chamber (6) inside wear out; Discharge section (7), the discharge section (7) is arranged at the front end of the cooling chamber (6), and the track (2) that extends from cooling chamber (6) extends into discharge section (7), and from discharge section (7) inside wear out; First transfer trolley (8), the first transfer trolley (8) runs on the track (2) in the upper section (1), preparation room (3) and the brazing chamber (4); Second transfer trolley (9), the second transfer trolley (9) runs on the track (2) on the brazing chamber (4), the cooling chamber (6) and the discharge section (7).
2. The sectionalized sealed aluminum brazing furnace of claim 1, wherein, It also includes tooling (10), the tooling (10) is used to carry brazing material (11), and the tooling (10) is matched with the rack (503).
3. The sectionalized sealed aluminum brazing furnace of claim 2 wherein, The outer side of the first furnace door (501) and the second furnace door (502) is provided with a retreat-stopping air cylinder for blocking the tooling (10), and the first transfer trolley (8) and the second transfer trolley (9) are both provided with a ratchet wheel that is unlocked towards the rear.
4. The sectionalized sealed aluminum brazing furnace of claim 1 wherein, The upper section (1) is provided with first upper feeding gear (101), the preparation room (3) is provided with second upper feeding gear (302), the rear end of the brazing chamber (4) is provided with third upper feeding gear (401), and the first transfer trolley (8) is provided with a rack, and the rack can be engaged with the first upper feeding gear (101), the second upper feeding gear (302) and the third upper feeding gear (401).
5. The sectionalized sealed aluminum brazing furnace of claim 1 wherein, The first discharging gear (402) is arranged in the front end of the brazing chamber (4), the second discharging gear (603) is arranged in the cooling chamber (6), the third discharging gear (701) is arranged on the discharging section (7), and the rack is arranged on the second transfer trolley (9) and can be engaged with the first discharging gear (402), the second discharging gear (603) and the third discharging gear (701).
6. The sectionalized sealed aluminum brazing furnace of claim 1 wherein, The oxygen analysis detection points are arranged in the preparation chamber (3), the brazing chamber (4) and the cooling chamber (6).
7. The sectionalized sealed aluminum brazing furnace of claim 1 wherein, The nitrogen blowing pipeline (12) is arranged on the inner side of the first automatic door (301) of the preparation chamber (3) and the second automatic door (602) of the cooling chamber (6).
8. The sectionalized sealed aluminum brazing furnace of claim 1 wherein, The exhaust treatment system (13) is arranged on the brazing chamber (4).
9. The sectionalized sealed aluminum brazing furnace of claim 1 wherein, The furnace doors of the first automatic door (301), the first furnace door (501), the second furnace door (502) and the second automatic door (602) are made of stainless steel plates, the periphery of which is provided with silicon rubber sealing rings, and the furnace doors are provided with lifting systems composed of air cylinders or motors, chain wheels and chains, and can be lifted and lowered to realize sealing.