Metal heat treatment heat circulation device

Abstract

The utility model discloses a heat circulating device for metal heat treatment, relates to the technical field of metal heat treatment, and aims to solve the problems that in the prior art, when heat generated during heat treatment is recycled, quenching oil is not preheated by recycled heat, and a heating device needs to be additionally used for preheating the quenching oil, so that the cost is low. According to the scheme, the muffle furnace comprises a muffle furnace body, and a heat preservation mechanism is arranged outside the muffle furnace body; the heat preservation mechanism comprises a heat preservation cover, two supporting blocks fixedly arranged on the inner wall of the bottom of the heat preservation cover, a front end cover connected to the outer wall of one side of the heat preservation cover through bolts and a rear end cover connected to the outer wall of one side of the heat preservation cover through bolts, and the outer wall of the upper portion of one side of the front end cover is connected with a heat-resisting fan through bolts. A waste heat recovery assembly is arranged on one side of the rear end cover. According to the utility model, hot air circulation can be realized during metal heat treatment, and meanwhile, quenching oil can be preheated by utilizing overflowing heat, so that the practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal heat treatment technical field especially relates to a metal heat treatment heat circulation device. BACKGROUND

[0002] Heat treatment refers to the material in solid state, through heating, heat preservation and cooling means, to obtain the expected organization and performance of a kind of metal hot working process.

[0003] Through the retrieval, China patent (application number is "202120195522.7") discloses "a kind of metal heat treatment heat circulation device", the above-mentioned heat circulation device includes operation box body, the heat treatment structure is equipped in the operation box body, the heat treatment structure includes: gas storage tank, control valve, first gas pipe, second gas pipe, third gas pipe, several spray heads, drive chamber, motor, tray and circulation assembly, the gas storage tank is fixedly installed on the operation box body upper wall surface, the control valve is fixedly installed on the gas storage tank gas outlet, the first gas pipe one end is connected with the control valve, but, the above-mentioned heat circulation device in the use process, when the heat generated in heat treatment is recycled, the recycled heat is not used to preheat quenching oil, needs to use heating device to preheat quenching oil, low practicability. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of metal heat treatment heat circulation device, solve the heat circulation device of comparative file when the heat generated in heat treatment is recycled, the recycled heat is not used to preheat quenching oil, needs to use heating device to preheat quenching oil, low practicability Problem.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] The utility model provides a metal heat treatment heat circulation device, including muffle body, the muffle body is equipped with heat preservation mechanism outside, heat preservation mechanism includes heat preservation cover, two respectively fixed support block on the inner wall of heat preservation cover bottom, the front end cover through bolt connection on one side outer wall of heat preservation cover and the rear end cover through bolt connection on one side outer wall of heat preservation cover, the upper outer wall of one side of front end cover is connected through bolt and has heat -resistant fan, one side of rear end cover is equipped with waste heat recovery subassembly, waste heat recovery subassembly includes recovery cover, a plurality of heat pipes that are respectively fixed on the inner wall of recovery cover bottom and the wind scooper that is fixed on the outer wall of a plurality of heat pipes lower part, one side of rear end cover is equipped with wind shield, the lower part of wind scooper is equipped with circulation subassembly, circulation subassembly includes the output pipe that is fixed on the inner wall of wind scooper bottom, two 'L' shape structure's connecting pipe and a plurality of circulation pipes that are respectively fixed on the inner wall of two connecting pipe top, one side of heat preservation cover is equipped with quenching tank, one side of heat preservation cover is equipped with preheating subassembly, preheating subassembly includes air outlet pipe, distribution pipe and a plurality of preheating pipes.

[0007] Preferably, the muffle body is bolted to the outer walls of the two support blocks, and the front end cover and the rear end cover are embedded in the outer walls of the two ends of the muffle body.

[0008] Preferably, the outer wall of one side of the rear end cover is fixed with a recovery pipe, and the lower part of the recovery pipe is fixed to the inner wall of the top of the recovery cover.

[0009] Preferably, the wind shield is fixed to the outer wall of one side of the rear end cover, and the recovery cover and the wind scooper are bolted to the inner wall of one side of the wind shield.

[0010] Preferably, the lower part of the output pipe penetrates through and is fixed to the outer wall of one side of the rear end cover, a three-way pipe is screwed to the outer wall of one end of the output pipe, the two connecting pipes are screwed to the inner walls of the two ends of the three-way pipe, the two connecting pipes abut against the inner walls of the bottoms of the heat preservation covers, and the upper parts of the plurality of circulation pipes are fixed to the inner walls of the bottoms of the muffle bodies.

[0011] Through the above scheme, the heat near the front end cover of the muffle body is transported into the heat preservation cover by the heat-resistant fan, the hot air enters the heat pipes along the recovery pipe, the heat overflowed near the rear end cover of the muffle body heats the hot air in the heat pipes, then the hot air enters the connecting pipes, and the hot air enters the muffle body again along the circulation pipes.

[0012] Preferably, one end of the air outlet pipe is fixed to the inner wall of the top of the heat preservation cover, a sealing valve is installed on the outer wall of one end of the air outlet pipe, the distribution pipe is fixed to the outer wall of the lower part of the air outlet pipe, the plurality of preheating pipes are fixed to the inner walls of the bottoms of the distribution pipes, and the lower parts of the plurality of preheating pipes extend into the quenching tank.

[0013] By the above scheme, through the opening of the sealing valve, part of the hot air in the heat preservation cover enters into the distribution pipe, and then is discharged along the preheating pipe, the hot air contacts the quenching oil in the quenching tank, and then the quenching oil is preheated, and when the temperature of the quenching oil reaches the specified temperature, the sealing valve is closed.

[0014] The utility model discloses the beneficial effects are:

[0015] By the opening of the sealing valve, part of the hot air in the heat preservation cover enters into the distribution pipe, and then is discharged along the preheating pipe, the hot air contacts the quenching oil in the quenching tank, and then the quenching oil is preheated, and when the temperature of the quenching oil reaches the specified temperature, the sealing valve is closed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a kind of overall main view structural schematic diagram of metal heat treatment heat circulation device.

[0017] Figure 2 The utility model discloses a kind of main view cross-sectional structural schematic diagram of metal heat treatment heat circulation device.

[0018] Figure 3 The utility model discloses a kind of heat preservation mechanism and wind shield main view structural schematic diagram of metal heat treatment heat circulation device.

[0019] Figure 4 The utility model discloses a kind of waste heat recovery subassembly main view structural schematic diagram of metal heat treatment heat circulation device.

[0020] Figure 5 The utility model discloses a kind of circulation subassembly main view structural schematic diagram of metal heat treatment heat circulation device.

[0021] Figure 6 The utility model discloses a kind of quenching tank and preheating subassembly main view structural schematic diagram of metal heat treatment heat circulation device.

[0022] In the drawing: 1, muffle furnace body;2, heat preservation mechanism;201, heat preservation cover;202, support block;203, front end cover;204, rear end cover;3, heat-resistant fan;4, waste heat recovery subassembly;401, recovery pipe;402, recovery cover;403, heat pipe;404, wind deflector;5, wind shield;6, circulation subassembly;601, output pipe;602, tee pipe;603, connecting pipe;604, circulation pipe;7, quenching tank;8, preheating subassembly;801, air outlet pipe;802, distribution pipe;803, preheating pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] Embodiment 1, refer to Figures 1-5 A metal heat treatment heat circulation device, including muffle furnace body 1, muffle furnace body 1 outside is equipped with heat preservation mechanism 2, heat preservation mechanism 2 includes heat preservation cover 201, two respectively fixed on the inner wall of the bottom of heat preservation cover 201 Support block 202, through bolt connection on the outer wall of one side of heat preservation cover 201 Front end cover 203 and through bolt connection on the outer wall of one side of heat preservation cover 201 Rear end cover 204, muffle furnace body 1 is bolted on the outer wall of two support blocks 202, front end cover 203 and rear end cover 204 are respectively embedded in the outer wall of both ends of muffle furnace body 1, the upper outer wall of one side of front end cover 203 is bolted with heat-resistant fan 3, one side of rear end cover 204 is provided with waste heat recovery assembly 4, waste heat recovery assembly 4 includes recovery cover 402, a plurality of heat pipes 403 respectively fixed on the inner wall of the bottom of recovery cover 402 and heat guide cover 404 fixed on the outer wall of the lower part of a plurality of heat pipes 403, recovery pipe 401 is fixed on the outer wall of one side of rear end cover 204, recovery pipe 401 is fixed on the inner wall of the top of recovery cover 402, one side of rear end cover 204 is provided with wind shield 5, recovery cover 402 and wind guide cover 404 are bolted on one side of the inner wall of wind shield 5, respectively, wind guide cover 404 is provided with circulation assembly 6, circulation assembly 6 includes output pipe 601 fixed on the inner wall of the bottom of wind guide cover 404, two "L" shaped connection pipe 603 and a plurality of circulation pipe 604 respectively fixed on the inner wall of the top of two connection pipe 603, output pipe 601 is fixed on the outer wall of one side of rear end cover 204, three-way pipe 602 is screwed on the outer wall of one end of output pipe 601, two connection pipes 603 are respectively screwed on the inner wall of both ends of three-way pipe 602, two connection pipes 603 are respectively abutted on the inner wall of the bottom of heat preservation cover 201, a plurality of circulation pipes 604 are respectively fixed on the inner wall of the bottom of muffle furnace body 1.

[0025] Embodiment 2, refer to Figure 6The metal heat treatment heat circulation device further comprises a quenching tank 7 arranged on one side of the heat preservation cover 201, and a preheating assembly 8 arranged on one side of the heat preservation cover 201, wherein the preheating assembly 8 comprises an air outlet pipe 801, a distribution pipe 802 and a plurality of preheating pipes 803, one end of the air outlet pipe 801 is fixedly arranged on the inner wall of the top of the heat preservation cover 201, a sealing valve is arranged on the outer wall of one end of the air outlet pipe 801, the distribution pipe 802 is fixedly arranged on the outer wall of the lower part of the air outlet pipe 801, the plurality of preheating pipes 803 are respectively fixedly arranged on the inner wall of the bottom of the distribution pipe 802, the lower parts of the plurality of preheating pipes 803 extend into the quenching tank 7, and a one-way valve is embedded on the inner wall of the lower part of each preheating pipe 803.

[0026] Working principle: the heat-resistant fan 3 delivers the heat of the muffle furnace body 1 close to the front end cover 203 into the heat preservation cover 201, the hot air enters into the heat conduction pipe 403 along the recovery pipe 401, the heat overflowed from the muffle furnace body 1 close to the rear end cover 204 heats the hot air in the heat conduction pipe 403, then the hot air enters into the connecting pipe 603 and enters into the muffle furnace body 1 again along the circulation pipe 604, the opening of the sealing valve enables part of the hot air in the heat preservation cover 201 to enter into the distribution pipe 802, then the hot air is discharged along the preheating pipe 803, the hot air contacts the quenching oil in the quenching tank 7, thereby preheating the quenching oil, and when the temperature of the quenching oil reaches a specified temperature, the sealing valve is closed.

[0027] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A metal heat treatment heat cycle device comprising a muffle furnace body (1), characterized in that, The muffle furnace body (1) is externally provided with a heat preservation mechanism (2), the heat preservation mechanism (2) comprises a heat preservation cover (201), two support blocks (202) respectively fixed on the inner wall of the bottom of the heat preservation cover (201), a front end cover (203) connected to the outer wall of one side of the heat preservation cover (201) by bolts and a rear end cover (204) connected to the outer wall of one side of the heat preservation cover (201) by bolts. The upper outer wall of one side of the front end cover (203) is connected with a heat-resistant fan (3) by bolts. One side of the rear end cover (204) is provided with a waste heat recovery assembly (4), the waste heat recovery assembly (4) comprises a recovery cover (402), a plurality of heat conducting pipes (403) respectively fixed on the inner wall of the bottom of the recovery cover (402) and a wind guide cover (404) fixed on the outer wall of the lower part of the plurality of heat conducting pipes (403). One side of the rear end cover (204) is provided with a wind shield (5). The lower part of the wind guide cover (404) is provided with a circulating assembly (6), the circulating assembly (6) comprises an output pipe (601) fixed on the inner wall of the bottom of the wind guide cover (404), two "L" shaped connecting pipes (603) and a plurality of circulating pipes (604) respectively fixed on the inner wall of the top of the two connecting pipes (603). One side of the heat preservation cover (201) is provided with a quenching box (7), and one side of the heat preservation cover (201) is provided with a preheating assembly (8), the preheating assembly (8) comprises an air outlet pipe (801), a distribution pipe (802) and a plurality of preheating pipes (803).

2. A metal heat treatment heat cycle apparatus according to claim 1, wherein The muffle furnace body (1) is connected to the outer wall of the two support blocks (202) by bolts, and the front end cover (203) and the rear end cover (204) are embedded in the outer wall of the two ends of the muffle furnace body (1).

3. The metal heat treatment heat cycle apparatus according to claim 1, wherein The outer wall of one side of the rear end cover (204) is fixed with a recovery pipe (401), and the lower part of the recovery pipe (401) is fixed on the inner wall of the top of the recovery cover (402).

4. The metal heat treatment heat recycling device according to claim 1, wherein The wind shield (5) is fixed on the outer wall of one side of the rear end cover (204), and the recovery cover (402) and the wind guide cover (404) are connected to the inner wall of one side of the wind shield (5) by bolts.

5. The metal heat treatment heat recycling device according to claim 1, wherein The lower part of the output pipe (601) penetrates and is fixed on the outer wall of one side of the rear end cover (204), and a three-way pipe (602) is screwed on the outer wall of one end of the output pipe (601), the two connecting pipes (603) are screwed on the inner walls of the two ends of the three-way pipe (602), and the two connecting pipes (603) abut against the inner wall of the bottom of the heat preservation cover (201), and the upper parts of the plurality of circulating pipes (604) are fixed on the inner wall of the bottom of the muffle furnace body (1).

6. The metal heat treatment heat recycling device according to claim 1, wherein One end of the air outlet pipe (801) is fixed on the inner wall of the top of the heat preservation cover (201), and a sealing valve is installed on the outer wall of one end of the air outlet pipe (801), the distribution pipe (802) is fixed on the outer wall of the lower part of the air outlet pipe (801), and the plurality of preheating pipes (803) are respectively fixed on the inner wall of the bottom of the distribution pipe (802), and the lower parts of the plurality of preheating pipes (803) extend into the quenching box (7).

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