Furnace pressure adjusting mechanism and heat treatment furnace thereof

Abstract

The utility model relates to a furnace pressure regulating mechanism and a heat treatment furnace thereof, and the furnace pressure regulating mechanism comprises an exhaust pipe which is provided with a pipe orifice and is used for exhausting gas in a furnace body; one end of the cover plate is rotationally arranged on the exhaust pipe, and the cover plate is used for covering or opening the pipe orifice; the pressure adjusting rod is arranged on the side, away from the pipe opening, of the cover plate and comprises a lead screw fixedly arranged on the cover plate, a pressurization balance weight nut and / or a pressure reduction balance weight nut, one end, extending out of the cover plate, of the lead screw is provided with a pressurization balance weight part, and the other end, extending out of the cover plate, of the lead screw is provided with a pressure reduction balance weight part; the pressurizing balance weight nut is rotationally arranged on the pressurizing balance weight part, the pressure reducing balance weight nut is rotationally arranged on the pressure reducing balance weight part, and the screw rod is perpendicular to the axial direction of rotation of the cover plate. The furnace pressure adjusting mechanism can adjust according to the pressure of the furnace body, so that the pressure in the furnace body can be released, the pressure can be accurately adjusted, and the loss of excessive heat can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a furnace pressure regulating mechanism and a heat treatment furnace thereof. Background Art

[0002] At present, domestic heat treatment furnaces have increasingly higher requirements for furnace pressure control, especially for heat treatment furnaces. The furnace pressure and airtightness will affect the final quality of the product. For example, during the heating process of an aluminum alloy heat treatment furnace, as the temperature rises, the air in the furnace expands due to heat and the volume increases, and the gas furnace continuously injects hot air into the furnace, which will increase the pressure in the furnace. The increase in furnace pressure will cause certain damage to the furnace body and there are certain safety hazards. Therefore, heat treatment furnaces need to be equipped with a certain number of pressure relief ports, and the size of the pressure relief ports needs to be appropriate. If the pressure relief ports are too large, the heat in the furnace will easily dissipate, which is not conducive to energy saving. Utility Model Content

[0003] In order to solve the above problems, the utility model aims to provide a furnace pressure regulating mechanism, which can be adjusted according to the furnace pressure, thereby ensuring the release of the pressure in the furnace and avoiding excessive heat loss.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A furnace pressure regulating mechanism, comprising

[0006] An exhaust pipe is provided with a pipe opening for exhausting the gas in the furnace body;

[0007] A cover plate, one end of which is rotatably disposed on the exhaust pipe and is used to cover or open the pipe opening;

[0008] A pressure regulating rod is arranged on a side of the cover plate away from the pipe outlet, and includes a screw rod fixedly arranged on the cover plate, at least one pressurizing counterweight nut and / or at least one decompression counterweight nut, one end of the screw rod extends out of the cover plate and is provided with a pressurizing counterweight part, and the other end of the screw rod extends out of the cover plate and is provided with a decompression counterweight part, the pressurizing counterweight nut is rotatably arranged on the pressurizing counterweight part, and the decompression counterweight nut is rotatably arranged on the decompression counterweight part, and the screw rod is arranged perpendicular to the axial direction of rotation of the cover plate.

[0009] Wherein, the pressure regulating rod also includes a reinforcement nut, and the reinforcement nut is rotatably arranged at both ends of the pressurization counterweight nut and / or the reinforcement nut is rotatably arranged at both ends of the decompression counterweight nut.

[0010] The pressurized counterweight nut is hollowly provided with a first through hole, the inner side wall of the first through hole is provided with a first internal thread, the pressurized counterweight portion is provided with a first external thread, and the first internal thread is cooperatively connected with the first external thread.

[0011] The decompression weight nut is hollowly provided with a second through hole, the inner side wall of the second through hole is provided with a second internal thread, the decompression weight portion is provided with a second external thread, and the second internal thread is cooperatively connected with the second external thread.

[0012] Among them, the furnace pressure regulating mechanism also includes a connecting component, which includes a first connecting ear arranged at one end of the exhaust pipe, a second connecting ear arranged at one end of the cover plate, and a rotating shaft, the first connecting ear is provided with a first connecting hole, the second connecting ear is provided with a second connecting hole, and the rotating shaft is sequentially passed through the first connecting hole and the second connecting hole.

[0013] Another object of the utility model is to provide a heat treatment furnace, which has the function of regulating the pressure inside the furnace, so as to avoid excessive pressure inside the furnace and excessive heat dissipation inside the furnace.

[0014] A heat treatment furnace of this embodiment includes a furnace body and the above-mentioned furnace pressure regulating mechanism, and the furnace pressure regulating mechanism is arranged on the furnace body.

[0015] Wherein, the furnace body is provided with a plurality of furnace pressure regulating mechanisms.

[0016] The beneficial effects of the utility model are as follows: a furnace pressure regulating mechanism of the utility model can adjust the pressure of the exhaust pipe covered by the cover plate by setting a pressure regulating rod on the cover plate, can smoothly ensure the release of the pressure in the furnace body, accurately adjust the pressure, and avoid excessive heat loss in the furnace body. Specifically, the two ends of the pressure regulating rod extend out of the edge of the cover plate, and a pressure reducing counterweight part is provided at the end close to the rotation of the cover plate, and a pressurizing counterweight part is provided at the opposite end of the cover plate. When in use, according to the pressure size, a pressurizing counterweight nut can be added to the pressurizing counterweight part to increase the covering pressure of the cover plate on the pipe opening, or a pressure reducing counterweight nut can be used in the pressure reducing counterweight part to reduce the covering pressure of the cover plate on the pipe opening; the pressurizing counterweight nut and the pressure reducing counterweight nut can move relative to the screw rod, so as to more accurately adjust the pressure of the cover plate covering the pipe opening, so as to achieve the effect of adjusting the pressure and saving heat in the furnace. The pressurized counterweight nut can be rotated along the screw rod to adjust the pressure of the cover plate closing the pipe opening. The closer the pressurized counterweight nut is to the rotating end of the cover plate, the smaller the pressure on the cover plate closing the pipe opening is; the farther the pressurized counterweight nut is from the rotating end of the cover plate, the greater the pressure on the cover plate closing the pipe opening is. Correspondingly, the decompression counterweight nut can be rotated along the screw rod to adjust the pressure of the cover plate closing the pipe opening. The closer the decompression counterweight nut is to the rotating end of the cover plate, the smaller the pressure on the cover plate closing the pipe opening is reduced; the farther the decompression counterweight nut is from the rotating end of the cover plate, the greater the pressure on the cover plate closing the pipe opening is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the furnace pressure regulating mechanism of the utility model when the pipe opening is covered.

[0018] Figure 2 It is a structural schematic diagram of the furnace pressure regulating mechanism of the utility model when the pipe mouth is opened.

[0019] Notes on the attached drawings:

[0020] 1. Exhaust pipe; 11. Pipe mouth; 2. Cover plate; 3. Pressure regulating rod; 31. Screw rod; 32. Pressurization counterweight nut; 33. Decompression counterweight nut; 4. Reinforcement nut; 5. Connecting assembly; 51. First connecting ear; 52. Second connecting ear; 53. Rotating shaft. DETAILED DESCRIPTION

[0021] In the following description, all concepts related to directionality or orientation such as up, down, left, right, front and back are with reference to the position states shown in the drawings being described, and therefore cannot be understood as a special limitation on the technical solution provided by the present utility model.

[0022] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings:

[0023] like Figure 1 and Figure 2 As shown, a furnace pressure regulating mechanism comprises an exhaust pipe 1, provided with a pipe mouth 11, for discharging gas in the furnace body; a cover plate 2, one end of the cover plate 2 is rotatably arranged on the exhaust pipe 1, for covering or opening the pipe mouth 11; a pressure regulating rod 3, arranged on the side of the cover plate 2 away from the pipe mouth 11, comprising a screw rod 31 fixedly arranged on the cover plate 2, at least one pressurizing counterweight nut 32 and / or at least one decompressing counterweight nut 33, one end of the screw rod 31 extends out of the cover plate 2 and is provided with a pressurizing counterweight part, the other end of the screw rod 31 extends out of the cover plate 2 and is provided with a decompressing counterweight part, the pressurizing counterweight nut 32 is rotatably arranged on the pressurizing counterweight part, the decompressing counterweight nut 33 is rotatably arranged on the decompressing counterweight part, and the screw rod 31 is arranged perpendicular to the axial direction of rotation of the cover plate 2.

[0024] A furnace pressure regulating mechanism of this embodiment can adjust the pressure of the cover plate 2 covering the exhaust pipe 1 by setting a pressure regulating rod 3 on the cover plate 2, which can smoothly ensure the release of the pressure in the furnace body, accurately adjust the pressure, and avoid excessive heat loss in the furnace body. Specifically, the two ends of the pressure regulating rod 3 extend out of the edge of the cover plate 2, and a pressure reducing counterweight part is provided at the end close to the rotation of the cover plate 2, and a pressure increasing counterweight part is provided at the opposite end of the cover plate 2. When in use, according to the pressure size, a pressure increasing counterweight nut 32 can be added to the pressure increasing counterweight part to increase the covering pressure of the cover plate 2 on the pipe mouth 11, or a pressure reducing counterweight nut 33 can be used in the pressure reducing counterweight part to reduce the covering pressure of the cover plate 2 on the pipe mouth 11; the pressure increasing counterweight nut 32 and the pressure reducing counterweight nut 33 can move relative to the screw rod 31, so as to more accurately adjust the pressure of the cover plate 2 covering the pipe mouth 11, so as to achieve the effect of adjusting the pressure and saving the heat in the furnace. The pressurized counterweight nut 32 can be rotated along the screw 31 to adjust the pressure of the cover plate 2 covering the pipe opening 11. The closer the pressurized counterweight nut 32 is to the rotating end of the cover plate 2, the smaller the pressure of the cover plate 2 covering the pipe opening 11 is; the farther the pressurized counterweight nut 32 is from the rotating end of the cover plate 2, the greater the pressure of the cover plate 2 covering the pipe opening 11 is. Correspondingly, the decompression counterweight nut 33 can be rotated along the screw 31 to adjust the pressure of the cover plate 2 covering the pipe opening 11. The closer the decompression counterweight nut 33 is to the rotating end of the cover plate 2, the smaller the pressure of the cover plate 2 covering the pipe opening 11 is reduced; the farther the decompression counterweight nut 33 is from the rotating end of the cover plate 2, the greater the pressure of the cover plate 2 covering the pipe opening 11 is reduced.

[0025] like Figure 1 and Figure 2 As shown, the pressure regulating rod 3 of this embodiment further includes a reinforcing nut 4, which is rotatably disposed at both ends of the pressurizing counterweight nut 32 and / or is rotatably disposed at both ends of the decompression counterweight nut 33. The reinforcing nut 4 can fix the position of the pressurizing counterweight nut 32 on the screw rod 31, thereby preventing the position of the nut from moving and affecting the pressure of the cover plate 2 covering the pipe opening 11.

[0026] like Figure 1 and Figure 2 As shown, the pressurized counterweight nut 32 of this embodiment is hollow with a first through hole, the inner side wall of the first through hole is provided with a first internal thread, the pressurized counterweight portion is provided with a first external thread, and the first internal thread is connected with the first external thread. The pressurized counterweight nut 32 is provided with an internal thread, which is connected with the external thread of the screw rod 31, so that the pressurized counterweight nut 32 can be moved in the axial direction relative to the screw rod 31 by rotating the pressurized counterweight nut 32.

[0027] like Figure 1 and Figure 2As shown, the decompression weight nut 33 of this embodiment is hollow with a second through hole, the inner side wall of the second through hole is provided with a second internal thread, the decompression weight portion is provided with a second external thread, and the second internal thread is connected with the second external thread. The decompression weight nut 33 is provided with an internal thread, which is connected with the external thread of the screw rod 31, so that the decompression weight nut 33 can be moved in the axial direction relative to the screw rod 31 by rotating the decompression weight nut 33.

[0028] like Figure 1 and Figure 2 As shown, the furnace pressure regulating mechanism of this embodiment further includes a connecting assembly 5, the connecting assembly 5 includes a first connecting ear 51 provided at one end of the exhaust pipe 1, a second connecting ear 52 provided at one end of the cover plate 2, and a rotating shaft 53, the first connecting ear 51 is provided with a first connecting hole, the second connecting ear 52 is provided with a second connecting hole, and the rotating shaft 53 is sequentially penetrated through the first connecting hole and the second connecting hole. The cover plate 2 is connected by the first connecting ear 51, the second connecting ear 52 and the rotating shaft 53, and can realize a large angle of rotation.

[0029] A heat treatment furnace of this embodiment includes a furnace body and the above-mentioned furnace pressure regulating mechanism, and the furnace pressure regulating mechanism is arranged in the furnace body. A heat treatment furnace of this embodiment realizes the function of regulating the pressure in the furnace body through the furnace pressure regulating mechanism, avoids excessive pressure in the furnace body, and also avoids excessive heat dissipation of the furnace body, thereby achieving the effect of saving heat in the furnace. Preferably, the number of furnace pressure regulating mechanisms can be set according to actual selection.

[0030] The above description is only a preferred embodiment of the present utility model and does not limit the technical scope of the present utility model. Technical personnel in this industry can make some deformations and modifications inspired by the present technical solution. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model are still within the scope of the technical solution of the present utility model.

Claims

1. A furnace pressure regulating mechanism, characterized in that: include An exhaust pipe (1) is provided with a pipe opening (11) for exhausting the gas in the furnace body; A cover plate (2), one end of which is rotatably disposed on the exhaust pipe (1) and is used to cover or open the pipe opening (11); The pressure regulating rod (3) is arranged on a side of the cover plate (2) away from the pipe opening (11), and comprises a screw rod (31) fixedly arranged on the cover plate (2), at least one pressurizing counterweight nut (32) and / or at least one decompression counterweight nut (33); one end of the screw rod (31) extends out of the cover plate (2) and is provided with a pressurizing counterweight portion, and the other end of the screw rod (31) extends out of the cover plate (2) and is provided with a decompression counterweight portion; the pressurizing counterweight nut (32) is rotatably arranged on the pressurizing counterweight portion, and the decompression counterweight nut (33) is rotatably arranged on the decompression counterweight portion; the screw rod (31) is arranged perpendicular to the axial direction of rotation of the cover plate (2).

2. The furnace pressure regulating mechanism according to claim 1, characterized in that: The pressure regulating rod (3) further comprises a reinforcing nut (4), wherein the reinforcing nut (4) is rotatably arranged at both ends of the pressurizing counterweight nut (32) and / or the reinforcing nut (4) is rotatably arranged at both ends of the decompressing counterweight nut (33).

3. The furnace pressure regulating mechanism according to claim 1, characterized in that: The pressurized counterweight nut (32) is hollowly provided with a first through hole, the inner side wall of the first through hole is provided with a first internal thread, the pressurized counterweight portion is provided with a first external thread, and the first internal thread is matched and connected with the first external thread.

4. The furnace pressure regulating mechanism according to claim 1, characterized in that: The decompression counterweight nut (33) is hollowly provided with a second through hole, the inner side wall of the second through hole is provided with a second internal thread, the decompression counterweight portion is provided with a second external thread, and the second internal thread is matched and connected with the second external thread.

5. The furnace pressure regulating mechanism according to claim 1, characterized in that: The furnace pressure regulating mechanism further comprises a connecting assembly (5), the connecting assembly (5) comprising a first connecting ear (51) arranged at one end of the exhaust pipe (1), a second connecting ear (52) arranged at one end of the cover plate (2), and a rotating shaft (53), the first connecting ear (51) being provided with a first connecting hole, the second connecting ear (52) being provided with a second connecting hole, and the rotating shaft (53) being sequentially passed through the first connecting hole and the second connecting hole.

6. A heat treatment furnace, characterized in that: The invention comprises a furnace body and the furnace pressure regulating mechanism according to any one of claims 1 to 5, wherein the furnace pressure regulating mechanism is arranged on the furnace body.

7. The heat treatment furnace according to claim 6, characterized in that: The furnace body is provided with a plurality of furnace pressure regulating mechanisms.

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