A heating device

Abstract

The application provides a heating device, relates to the technical field of heating, and comprises a first tempering electric furnace, a second tempering electric furnace and a sealing assembly. The first tempering electric furnace is provided with a mounting gap in the middle, the second tempering electric furnace is arranged in the mounting gap, and the sealing assembly is sleeved on the first tempering electric furnace and used for sealing the first tempering electric furnace or the second tempering electric furnace. In this way, a cylinder type forge piece is placed in a matched tempering electric furnace station; only the first tempering electric furnace or the second tempering electric furnace corresponding to the specification is started to perform heating operation, and the other tempering electric furnace is kept in the state of being turned off, so that the structure can greatly reduce the effective heating area of the whole machine, only the matched area of the cylinder type forge piece is subjected to directional heating, heat energy loss is reduced from the source, and the heat energy utilization rate is improved.

Description

Technical Field

[0001] This invention relates to the field of heating technology, and more specifically, to a heating device. Background Technology

[0002] Industrial furnaces, as core heat treatment equipment in fields such as machinery manufacturing, metallurgy, and aerospace, are often used to heat large cylindrical forgings. In order to meet the heat treatment requirements of large cylindrical forgings, conventional industrial furnaces generally adopt an integral large trolley surface design to meet the heating requirements of workpieces with the largest diameter.

[0003] However, the integrated ultra-large trolley surface design adopted to meet the heating requirements of ultra-large diameter workpieces still requires the entire trolley surface to maintain a high temperature working state when heating smaller diameter cylindrical forgings. This results in a large amount of ineffective space being continuously heated, significantly reducing thermal efficiency and causing serious energy waste. Summary of the Invention

[0004] The problem addressed by this invention is how to improve thermal energy utilization.

[0005] To solve the above problems, the present invention provides a heating device, including a first tempering furnace and a second tempering furnace. The first tempering furnace has an installation notch in the middle, and the second tempering furnace is disposed in the installation notch. The trolley surfaces of the first tempering furnace and the second tempering furnace are offset in the height direction.

[0006] Optionally, it also includes a sealing component, which is sleeved on the first tempering furnace and used to seal the first tempering furnace or the second tempering furnace.

[0007] Optionally, the sealing assembly includes an installation unit, a first sealing unit, and a second sealing unit. The installation unit is sleeved on the outer peripheral surface of the first tempering furnace. The installation unit is detachably connected to the first sealing unit and the second sealing unit. The installation unit is connected to the first sealing unit to seal the first tempering furnace, and the installation unit is connected to the second sealing unit to seal the second tempering furnace.

[0008] Optionally, the trolley surface of the first quenching and tempering furnace is located below the trolley surface of the second quenching and tempering furnace, and the second sealing unit is fitted to the outer end of the second quenching and tempering furnace.

[0009] Optionally, the installation unit includes two bases, which are respectively disposed at both ends of the first tempering furnace. The two bases are fitted together to be sleeved on the outer end of the first tempering furnace, and the two bases are detachably connected to the first sealing unit or the second sealing unit.

[0010] Optionally, the first sealing unit includes two first sealing covers, which are respectively connected to two corresponding bases. The two first sealing covers move with the two bases to fit together and cooperate with the two fitted bases to seal the first tempering furnace. When the two first sealing covers fit together, there is a first gap between them for placing the workpiece. The first sealing covers are detachably connected to the corresponding bases.

[0011] Optionally, the second sealing unit includes two second sealing covers and two sealing plates. The two second sealing covers are respectively connected to the two sealing plates, and the two sealing plates are respectively connected to the two corresponding bases. The two bases are moved to fit together to drive the two second sealing covers to fit together to seal the second tempering furnace. The inner wall of the second sealing cover is fitted with the outer end of the second tempering furnace. When the two second sealing covers are fitted together, there is a second gap in the middle for placing the workpiece. The sealing plates are detachably connected to the corresponding bases.

[0012] Optionally, it also includes a first bolt, the base is provided with a threaded blind hole, the first sealing cover is fitted to the end of the base facing the first tempering furnace, the base is provided with a first threaded blind hole, the first sealing cover is provided with a first T-shaped hole, one end of the first bolt passes through the first T-shaped hole and extends into the first threaded blind hole and is threadedly connected to the base, and the other end of the first bolt abuts against the inner wall of the first T-shaped hole.

[0013] Optionally, it also includes a second bolt, wherein the sealing plate is provided with a second T-shaped hole, the sealing plate is fitted with the end of the base facing the first tempering furnace, one end of the second bolt passes through the second T-shaped hole and extends into the first threaded blind hole and is threadedly connected to the base, and the other end of the second bolt abuts against the inner wall of the second T-shaped hole.

[0014] Optionally, multiple support members are connected to both the trolley surface of the first tempering furnace and the trolley surface of the second tempering furnace, and the multiple support members are evenly distributed circumferentially on the trolley surfaces of the first tempering furnace and the second tempering furnace.

[0015] The beneficial effects of the heating device of the present invention are: By determining the specifications of the cylindrical forgings to be processed, the cylindrical forgings are placed in the matching tempering furnace station; only the first or second tempering furnace of the corresponding specification is turned on for heating, while the other tempering furnace remains off. This structure can significantly reduce the effective heating area of ​​the entire machine, and only perform directional heating on the matching area of ​​the cylindrical forgings, reducing heat loss from the source. The device is equipped with a switchable sealing component, which can individually seal the heating area of ​​the currently working furnace, forming a completely sealed space for the heating chamber, suppressing heat loss, further reducing the heat consumption of the equipment, and improving the heat utilization rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection between the base and the first sealing cover in a heating device.

[0017] Figure 2 This is a schematic diagram of the connection between the base and the second sealing cover in a heating device.

[0018] Explanation of reference numerals in the attached figures: 1. First tempering furnace; 2. Second tempering furnace; 3. Base; 4. First sealing cover; 5. Second sealing cover; 6. Sealing plate; 7. Support component. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0020] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this invention are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0021] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0022] In related technologies, industrial furnaces and kilns, as core hot processing equipment in fields such as machinery manufacturing, metallurgy, and aerospace, are often used to heat large cylindrical forgings. In order to meet the heat treatment requirements of large cylindrical forgings, conventional industrial furnaces and kilns generally adopt an integral large trolley surface design to meet the heating requirements of workpieces with the largest diameter.

[0023] However, the integrated ultra-large trolley surface design adopted to meet the heating requirements of ultra-large diameter workpieces still requires the entire trolley surface to maintain a high temperature working state when heating smaller diameter cylindrical forgings. This results in a large amount of ineffective space being continuously heated, significantly reducing thermal efficiency and causing serious energy waste.

[0024] To address the problems existing in the aforementioned related technologies, this embodiment provides a heating device.

[0025] like Figure 1-2 As shown in the figure, a heating device provided in an embodiment of the present invention includes a first tempering furnace 1 and a second tempering furnace 2. The first tempering furnace 1 has an installation notch in the middle, and the second tempering furnace 2 is disposed in the installation notch. The trolley surfaces of the first tempering furnace 1 and the second tempering furnace 2 are offset in the height direction.

[0026] Specifically, the first tempering furnace 1 and the second tempering furnace 2 are independently temperature controlled; the outer end of the second tempering furnace 2 is fitted to the inner wall of the mounting notch, and the gap between them is filled with sealing filler. The size of the workpiece adapted to the heating zone of the first tempering furnace 1 is larger than that of the workpiece adapted to the heating zone of the second tempering furnace 2.

[0027] The working method of this embodiment is as follows: During production, the device first selects the cylindrical forging according to its specifications and places it in the matching tempering furnace position; only the first tempering furnace 1 or the second tempering furnace 2 of the corresponding specifications is turned on for heating, while the other tempering furnace remains off. This structure can significantly reduce the effective heating area of ​​the whole machine, and only perform directional heating on the matching area of ​​the cylindrical forging, reducing heat loss from the source. In addition, the trolley surface heights of the first tempering furnace 1 and the second tempering furnace 2 are staggered, so that when one tempering furnace is heating, the other tempering furnace only receives a small amount of heat radiation locally, thereby effectively reducing the transfer of heat source and improving heat utilization rate.

[0028] Optionally, it also includes a sealing component, which is sleeved on the first tempering furnace 1 and used to seal the first tempering furnace 1 or the second tempering furnace 2.

[0029] Specifically, the sealing component is fitted onto the outside of the first tempering furnace 1, and can selectively seal and cover any heating station of the first tempering furnace 1 or the second tempering furnace 2.

[0030] In this embodiment, the device is equipped with a switchable sealing component, which can individually seal the heating area of ​​the currently operating electric furnace, forming a completely sealed space for the heating chamber, suppressing heat loss to the outside, further reducing the heat energy consumption of the equipment, and improving the heat energy utilization rate.

[0031] Optionally, the sealing assembly includes an installation unit, a first sealing unit, and a second sealing unit. The installation unit is sleeved on the outer peripheral surface of the first tempering furnace 1. The installation unit is detachably connected to the first sealing unit and the second sealing unit. The installation unit is connected to the first sealing unit to seal the first tempering furnace 1, and the installation unit is connected to the second sealing unit to seal the second tempering furnace 2.

[0032] Specifically, the mounting unit is disposed on the outer peripheral surface of the first tempering furnace 1, and the mounting unit can seal the side of the first tempering furnace 1. The first sealing unit and the second sealing unit are disposed on the first tempering furnace 1 and the second tempering furnace 2, and seal the area above them.

[0033] In this embodiment, when the device is needed, the corresponding tempering furnace is selected according to the specifications of the cylindrical forging to be processed. After the tempering furnace is selected, the base 3 is connected to the installation sealing unit corresponding to the selected tempering furnace. That is, when the specifications of the cylindrical forging to be processed are large, the first sealing unit is selected and connected to the installation unit, so as to effectively seal the first tempering furnace 1 and the installation unit. Otherwise, the second sealing unit is selected to seal the second tempering furnace 2. By selecting different sealing units, the size of the space in which the cylindrical forging to be processed is heated can be effectively controlled. That is, when processing cylindrical forgings with smaller inner diameters, the second sealing unit can be used to seal only the second tempering furnace 2, so as to effectively reduce the heating area of ​​the cylindrical forging with smaller inner diameters, thereby ensuring that the heat is concentrated in the effective area, thereby further improving the utilization rate of thermal energy of the device.

[0034] Optionally, the trolley surface of the first tempering furnace 1 is located below the trolley surface of the second tempering furnace 2, and the second sealing unit is fitted to the outer end of the second tempering furnace 2.

[0035] Specifically, the heating surface of the second quenching and tempering furnace 2 is located above the car surface of the first quenching and tempering furnace 1. That is, the cylindrical forging with a smaller diameter is placed on the second quenching and tempering furnace 2. When the heating area of ​​the cylindrical forging is sealed by the second sealing unit, the second sealing unit is in contact with the outer end of the second quenching and tempering furnace 2.

[0036] In this embodiment, by attaching the second sealing unit to the outer end of the second tempering furnace 2, the gap between the second tempering furnace 2 and the second sealing unit can be effectively reduced, thereby ensuring the sealing performance of the second sealing unit to the second tempering furnace 2, and thus effectively preventing heat from flowing out through the gap between them.

[0037] Optionally, the installation unit includes two bases 3, which are respectively disposed at both ends of the first tempering furnace 1. The two bases 3 are fitted together to fit over the outer end of the first tempering furnace 1. The two bases 3 are detachably connected to the first sealing unit or the second sealing unit.

[0038] Specifically, the two bases 3 are located on both sides of the first tempering furnace 1, that is, the end faces of the two bases 3 that are close to each other have gaps for accommodating the first tempering furnace 1. When the two bases 3 are close to each other and fit together, the first tempering furnace 1 is located between the two bases 3. One of the bases 3 is provided with a limiting block, and the end of the limiting block facing the other base 3 is provided with a limiting notch. The other base 3 is rotatably provided with a limiting rod, and the end of the limiting rod away from the base 3 is connected to a fixing block. The limiting rod can be rotatably extended into the limiting notch, and the fixing block and the end of the limiting block away from the base 3 are fitted together, which can effectively limit the two bases 3.

[0039] In this embodiment, the first sealing unit and the second sealing unit are installed using the base 3. When the two bases 3 are close to each other, they fit against the side of the first tempering furnace 1, thereby effectively sealing the side of the first tempering furnace 1. After the first sealing unit is installed, the area above the first tempering furnace 1 is sealed, effectively sealing the first tempering furnace 1. The second sealing unit is the same. The base 3 is designed as a split unit, and the sealing of the first tempering furnace 1 can be completed or canceled simply by pushing the base 3, making it more convenient for operators to operate.

[0040] Optionally, the first sealing unit includes two first sealing covers 4, which are respectively connected to two corresponding bases 3. The two first sealing covers 4 move with the two bases 3 to fit together and cooperate with the two fitted bases 3 to seal the first tempering furnace 1. When the two first sealing covers 4 fit together, there is a first gap between them for placing the workpiece. The first sealing cover 4 is detachably connected to the corresponding base 3.

[0041] Specifically, the number of first sealing covers 4 is the same as the number of bases 3, and the first sealing covers 4 are connected to the bases 3. When the two bases 3 are close to each other, the two first sealing covers 4 are also close to each other, and there is a first gap between them for the workpiece to enter. When the two first sealing covers 4 are in contact, the bottom opening is provided, and the sealing of the bottom is completed by the bases 3.

[0042] In this embodiment, by setting two first sealing covers 4, that is, by setting the first sealing unit separately and cooperating with the base 3, when it is necessary to seal the first tempering furnace 1, only the base 3 needs to be operated. By moving the two bases 3, the two first sealing covers 4 are brought into contact to complete the sealing effect. When the first tempering furnace 1 is sealed by the two first sealing covers 4, the two first sealing covers 4 are in contact with each other. In this way, the two first sealing covers 4 will also seal the area of ​​the second tempering furnace 2. Since the sealing area when the two first sealing covers 4 are in contact with each other is large, in order to meet the heating efficiency, the first tempering furnace 1 and the second tempering furnace 2 can be turned on at the same time. In this way, the sealed area can be raised to the specified temperature in a short time, thereby improving the heating efficiency. By moving the base 3 to drive the first sealing covers 4 to seal, the difficulty of sealing or unsealing the first tempering furnace 1 is reduced.

[0043] Optionally, the second sealing unit includes two second sealing covers 5 and two sealing plates 6. The two second sealing covers 5 are respectively connected to the two sealing plates 6, and the two sealing plates 6 are respectively connected to the two corresponding bases 3. The two bases 3 move to fit together to drive the two second sealing covers 5 to fit together to seal the second tempering furnace 2. The inner wall of the second sealing cover 5 is fitted with the outer end of the second tempering furnace 2. When the two second sealing covers 5 are fitted together, there is a second gap in the middle for placing the workpiece. The sealing plates 6 are detachably connected to the corresponding bases 3.

[0044] Specifically, since the overall size of the first quenching and tempering furnace 1 is larger than that of the second quenching and tempering furnace 2, the maximum distance between the inner walls of the two sets of first sealing covers 4 is greater than the maximum distance between the inner walls of the two sets of second sealing covers 5. Since the overall sealing performance needs to be considered when installing the base 3 with the first sealing cover 4 and the second sealing cover 5, when the first sealing cover 4 and the base 3 can be sealed, a size difference gap will be formed after the second sealing cover 5 and the base 3 are assembled. Therefore, a sealing plate 6 is provided with the second sealing cover 5 to compensate for the empty area between the base 3 and the first sealing cover 4 after the second sealing cover 5 is removed. The gap is filled by the sealing plate 6, so that the overall assembly sealing performance of the equipment meets the standard.

[0045] In this embodiment, the second sealing cover 5 and the base 3 can be detachably installed by means of the detachable connection between the sealing plate 6 and the base 3. The sealing plate 6 can effectively compensate for the dimensional difference gap formed after the second sealing cover 5 and the base 3 are assembled, thereby ensuring the sealing performance. By attaching the second sealing cover 5 to the outer end of the second tempering furnace 2, the sealing performance of the second gap between the two second sealing covers 5 after they are attached can be effectively ensured, thereby effectively preventing heat leakage and further improving the thermal energy utilization rate.

[0046] Optionally, it also includes a first bolt, the base 3 is provided with a threaded blind hole, the first sealing cover 4 is attached to the end of the base 3 facing the first tempering furnace 1, the base 3 is provided with a first threaded blind hole, the first sealing cover 4 is provided with a first T-shaped hole, one end of the first bolt passes through the first T-shaped hole and extends into the first threaded blind hole and is threadedly connected to the base 3, and the other end of the first bolt abuts against the inner wall of the first T-shaped hole.

[0047] The first bolt and the first threaded blind hole can effectively complete the detachable connection between the first sealing cover 4 and the base 3. There are multiple first threaded blind holes, and the number of first T-holes and multiple first threaded blind holes are equal and correspond one-to-one. By setting multiple points for installation between the first sealing cover 4 and the base 3, the stability of the first sealing cover 4 and the base 3 after installation can be effectively guaranteed.

[0048] Optionally, a second bolt is also included. The sealing plate 6 is provided with a second T-shaped hole. The sealing plate 6 is attached to the end of the base 3 facing the first tempering furnace 1. One end of the second bolt passes through the second T-shaped hole and extends into the first threaded blind hole and is threadedly connected to the base 3. The other end of the second bolt abuts against the inner wall of the second T-shaped hole.

[0049] In this embodiment, the number of second T-shaped holes and first threaded blind holes are equal and correspond one-to-one. The sealing plate 6 is installed by the cooperation of the second bolt and the first threaded blind hole, thereby completing the installation of the second sealing cover 5.

[0050] Optionally, multiple support members 7 are connected to both the trolley surface of the first tempering furnace 1 and the trolley surface of the second tempering furnace 2, and the multiple support members 7 are evenly distributed circumferentially on the trolley surface of the first tempering furnace 1 and the trolley surface of the second tempering furnace 2.

[0051] In this embodiment, multiple support members 7 can effectively support the cylindrical forgings on them, and can make a certain gap between the cylindrical forgings and the trolley surface, so as to facilitate uniform heating of the end face of the cylindrical forgings near the trolley surface.

[0052] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A heating device, characterized in that, It includes a first tempering furnace (1) and a second tempering furnace (2). The first tempering furnace (1) has an installation notch in the middle, and the second tempering furnace (2) is located in the installation notch. The trolley surface of the first tempering furnace (1) and the trolley surface of the second tempering furnace (2) are offset in the height direction.

2. The heating device according to claim 1, characterized in that, It also includes a sealing component, which is fitted onto the first tempering furnace (1) and is used to seal the first tempering furnace (1) or the second tempering furnace (2).

3. The heating device according to claim 2, characterized in that, The sealing assembly includes an installation unit, a first sealing unit, and a second sealing unit. The installation unit is sleeved on the outer peripheral surface of the first tempering furnace (1). The installation unit is detachably connected to the first sealing unit and the second sealing unit. The installation unit is connected to the first sealing unit to seal the first tempering furnace (1), and the installation unit is connected to the second sealing unit to seal the second tempering furnace (2).

4. The heating device according to claim 3, characterized in that, The trolley surface of the first tempering furnace (1) is located below the trolley surface of the second tempering furnace (2), and the second sealing unit is fitted to the outer end of the second tempering furnace (2).

5. The heating device according to claim 3, characterized in that, The installation unit includes two bases (3), which are respectively disposed at both ends of the first tempering furnace (1). The two bases (3) are fitted together to fit over the outer end of the first tempering furnace (1). The two bases (3) are detachably connected to the first sealing unit or the second sealing unit.

6. The heating device according to claim 5, characterized in that, The first sealing unit includes two first sealing covers (4), which are respectively connected to the two corresponding bases (3). The two first sealing covers (4) move with the two bases (3) to fit together and cooperate with the two fitted bases (3) to seal the first tempering furnace (1). When the two first sealing covers (4) fit together, there is a first gap between them for placing the workpiece. The first sealing cover (4) is detachably connected to the corresponding base (3).

7. The heating device according to claim 6, characterized in that, The second sealing unit includes two second sealing covers (5) and two sealing plates (6). The two second sealing covers (5) are respectively connected to the two sealing plates (6). The two sealing plates (6) are respectively connected to the two corresponding bases (3). The two bases (3) move to fit together to drive the two second sealing covers (5) to fit together to seal the second tempering furnace (2). The inner wall of the second sealing cover (5) fits together with the outer end of the second tempering furnace (2). When the two second sealing covers (5) fit together, there is a second gap in the middle for placing the workpiece. The sealing plate (6) is detachably connected to the corresponding base (3).

8. The heating device according to claim 7, characterized in that, It also includes a first bolt, a threaded blind hole on the base (3), the first sealing cover (4) is attached to the end of the base (3) facing the first tempering furnace (1), the base (3) is provided with a first threaded blind hole, the first sealing cover (4) is provided with a first T-shaped hole, one end of the first bolt passes through the first T-shaped hole and extends into the first threaded blind hole and is threadedly connected to the base (3), and the other end of the first bolt abuts against the inner wall of the first T-shaped hole.

9. The heating device according to claim 8, characterized in that, It also includes a second bolt. The sealing plate (6) is provided with a second T-shaped hole. The sealing plate (6) and the base (3) are attached to one end facing the first tempering furnace (1). One end of the second bolt passes through the second T-shaped hole and extends into the first threaded blind hole and is threadedly connected to the base (3). The other end of the second bolt abuts against the inner wall of the second T-shaped hole.

10. The heating device according to claim 1, characterized in that, Multiple support members (7) are connected to the trolley surface of the first tempering furnace (1) and the trolley surface of the second tempering furnace (2). The multiple support members (7) are evenly distributed around the circumference of the trolley surface of the first tempering furnace (1) and the trolley surface of the second tempering furnace (2).

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