Vertical gas heat treatment furnace
The vertical gas-fired heat treatment furnace with a split furnace body structure and precise heating control solved the problems of deformation and unevenness in the heat treatment of test coils, and achieved uniform heating and efficient disassembly and assembly of workpieces.
Patent Information
- Application Number
- CN202423011895.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In the existing technology, the test coil is prone to deformation and uneven heat treatment during the heat treatment process, making disassembly and assembly inconvenient and resulting in low production efficiency.
A vertical gas-fired heat treatment furnace is designed, which adopts a split furnace body structure, including a first furnace body, a second furnace body and a third furnace body. The base increases friction to prevent deformation, and the flue, heat exchanger and blower system achieve uniform temperature control. It is combined with gas burners and hot air pipes for precise heating.
It achieves uniform heating of the workpiece, avoids deformation, facilitates disassembly and assembly, and improves production efficiency.
Smart Images
Figure CN223460810U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a vertical gas heat treatment furnace. BACKGROUND
[0002] The test coil usually refers to the ring-shaped wire winding, and the test coil needs to be heat treated under the controllable atmosphere condition of argon protection before being put into use.
[0003] At present, the heat treatment mode is to place the test coil in the vertical heat treatment furnace to perform the heat treatment process operation, and therefore the utility model provides a vertical gas heat treatment furnace. CONTENT OF THE UTILITY MODEL
[0004] The utility model discloses a vertical gas heat treatment furnace, which aims to solve the problems in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a vertical gas heat treatment furnace, comprising a base and a split furnace, wherein the split furnace comprises a first furnace body, a second furnace body and a third furnace body, the first furnace body, the second furnace body and the third furnace body are sequentially stacked on the base, and independent heating cavities for placing crucibles and test coils are formed in the first furnace body, the second furnace body and the third furnace body.
[0006] Preferably, two smoke outlets are arranged on the upper surface of the third furnace body, a flue connecting pipe is inserted into the smoke outlet, and a heat exchanger is connected to the end of the flue connecting pipe away from the smoke outlet.
[0007] Preferably, an air induction pipe is connected to the end of the heat exchanger away from the flue connecting pipe.
[0008] Preferably, an air induction pipe is connected to the end of the heat exchanger away from the flue connecting pipe.
[0009] Preferably, a hot air pipe is arranged around the outer side of the second furnace body.
[0010] Preferably, gas burners are arranged on the outer sides of the first furnace body, the second furnace body and the third furnace body.
[0011] Preferably, a pneumatic butterfly valve is arranged between the air induction pipe and the air induction fan.
[0012] The vertical gas heat treatment furnace can be randomly combined between the first furnace body, the second furnace body and the third furnace body according to the height of the heat treatment workpiece, so that the internal cavity is matched with the workpiece, the whole is convenient to disassemble and assemble, the friction with the ground is increased through the base, the deformation prevention effect is achieved, the deformation of the workpiece after being heated is avoided, the cavity temperature field formed in the first furnace body, the second furnace body and the third furnace body is uniform, the workpiece is not easy to deform, is uniformly heated, is convenient to disassemble and assemble, and production efficiency is high. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the whole structure schematic view of the utility model;
[0014] Figure 2 It is the structure schematic view of the heat exchanger of the utility model;
[0015] Figure 3 It is the structure schematic view of the draft fan of the utility model;
[0016] Figure 4 It is the structure schematic view of the base of the utility model.
[0017] In the drawing: 1, base; 2, first furnace body; 3, second furnace body; 4, third furnace body; 5, cavity; 6, mouthpiece; 7, flue connecting pipe; 8, heat exchanger; 9, draft tube; 10, draft fan; 11, blast pipe; 12, air blower; 13, hot air pipe; 14, gas burner; 15, pneumatic butterfly valve; 16, refractory brick. DETAILED DESCRIPTION
[0018] The technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.
[0019] In order to facilitate the change of the cavity 5 in the furnace body according to the size of the heat treatment workpiece, as shown in Figure 1 、 Figure 2 and Figure 3 , including base 1 and split furnace, the split furnace includes first furnace body 2, second furnace body 3 and third furnace body 4, the first furnace body 2, the second furnace body 3 and the third furnace body 4 are sequentially stacked on the base 1, the independent heating cavity 5 for placing crucible and test coil is formed in the first furnace body 2, the second furnace body 3 and the third furnace body 4, the cavity 5 temperature field formed in the first furnace body 2, the second furnace body 3 and the third furnace body 4 is uniform, the workpiece is not easy to deform, is uniformly heated, is convenient to disassemble and assemble, and production efficiency is high. The first furnace body 2, the second furnace body 3 and the third furnace body 4 can be randomly combined according to the height of the heat treatment workpiece, so that the internal cavity 5 is matched with the workpiece, the whole is convenient to disassemble and assemble, the friction with the ground is increased through the base 1, the deformation prevention effect is achieved, and the deformation of the workpiece after being heated is avoided.
[0020] In order to facilitate the heat treatment of the test coil, refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, two mouthpieces 6 are provided on the upper surface of the third furnace body 4. A flue connection pipe 7 is inserted into the mouthpiece 6. The end of the flue connection pipe 7 away from the mouthpiece 6 is connected to a heat exchanger 8. The heat exchanger 8 exchanges heat with the gas entering the flue connection pipe 7, thereby heating the gas entering the mouthpiece 6 and achieving heat treatment of the test coil to be processed. The end of the heat exchanger 8 away from the flue connection pipe 7 is connected to an induced draft fan 10 via an induced draft pipe 9. A blast pipe 11 is also connected to the outside of the heat exchanger 8. The end of the blast pipe 11 away from the heat exchanger 8 is connected to a blower 12. A hot air pipe 13 is provided around the outside of the second furnace body 3. The hot air pipe 13 heats the entire body in a timely manner to achieve heat treatment of the test coil. The first, second, and third furnace bodies 2, 3, and 4 are each equipped with gas burners 14 on the outside. Eight 320kW gas burners 14 are arranged in two layers around the perimeter, staggered in upper and lower layers to ensure consistent base temperature within the furnace. (For example, if the desired crucible temperature is 650°C, the gas burners 14 can raise the furnace temperature to 640±5°C.) Each burner 14 uses a high-temperature electric butterfly valve to precisely control the air flow into the burner. This, combined with an air-fuel ratio valve, allows for continuous power control of the burner 14, ensuring precise heating rates and holding temperatures. A pneumatic butterfly valve 15 is installed between the blast pipe 11 and the blower 12. The first, second, and third furnace bodies 2, 3, and 4 are constructed of SA38712 CL2+TP410S composite steel plates. The heat treatment process meets a maximum temperature of 690°C and a holding time of 4 hours. Refractory bricks 16 are installed on the underside of the base 1 to minimize the impact of the entire device on the floor during high temperatures.
[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.
Claims
1. A vertical gas heat treatment furnace, characterized by, The utility model relates to a kind of stoves, including base (1) and separate stove, the separate stove includes first furnace body (2), second furnace body (3) and third furnace body (4), first furnace body (2), second furnace body (3) and third furnace body (4) are sequentially stacked on base (1), and independent heating cavity (5) for placing crucible and test coil is formed in first furnace body (2), second furnace body (3) and third furnace body (4).
2. The vertical gas-fired heat treatment furnace according to claim 1, characterized in that: Two smoke mouths (6) are arranged on the upper surface of the third furnace body (4), a flue connecting pipe (7) is inserted into the smoke mouth (6), and a heat exchanger (8) is connected to the end of the flue connecting pipe (7) away from the smoke mouth (6).
3. The vertical gas-fired heat treatment furnace according to claim 2, characterized in that: The heat exchanger (8) is connected to an air induction fan (10) through an air induction pipe (9) at the end away from the flue connecting pipe (7).
4. The vertical gas-fired heat treatment furnace according to claim 3, characterized in that: An air blowing pipe (11) is further connected to the outside of the heat exchanger (8), and an air blowing fan (12) is connected to the end of the air blowing pipe (11) away from the heat exchanger (8).
5. The vertical gas-fired heat treatment furnace of claim 1, wherein: A hot air pipe (13) is arranged around the outside of the second furnace body (3).
6. The vertical gas-fired heat treatment furnace of claim 1, wherein: Gas burners (14) are arranged on the outside of the first furnace body (2), the second furnace body (3) and the third furnace body (4).
7. The vertical gas-fired heat treatment furnace according to claim 4, characterized in that: A pneumatic butterfly valve (15) is arranged between the air blowing pipe (11) and the air blowing fan (12).