An internal steam uniform heating autoclave

Abstract

This utility model proposes an autoclave with uniform internal steam heating, comprising: an autoclave body, with multiple exhaust pipes annularly installed inside the autoclave body. The two ends of each exhaust pipe are rotatably connected to the autoclave body via bearing seats. Multiple exhaust heads are evenly spaced on the inner side of each exhaust pipe, arranged in an inverted pentagonal pattern inside the autoclave body. This utility model utilizes the inverted pentagonal exhaust pipes to ensure uniform steam filling of the autoclave body's internal cavity. A control component, in conjunction with a reciprocating rotation mechanism, drives each set of exhaust heads to circulate and spray steam within a set 120° range, expanding the steam spray range, reducing dead zones, and improving steam diffusion speed and uniformity. A heater and temperature sensor monitor the temperature of different areas within the internal cavity in real time and selectively heat the steam within the exhaust pipes to ensure uniform heating of the internal cavity.

Description

Technical Field

[0001] This utility model relates to the field of autoclave technology, and in particular to an autoclave with uniform internal steam heating. Background Technology

[0002] An autoclave is a horizontal or vertical cylindrical pressure vessel that uses a sealed structure to create a high-temperature, high-pressure environment inside. It is mainly used to autoclave materials such as concrete, wood, and food to improve their physical properties or complete specific processes. Typically, an autoclave is powered by a heating system that heats and pressurizes steam to a certain level, such as 180°C saturated steam, before supplying it to the autoclave to autoclave the product. The heating system usually uses a high-pressure boiler.

[0003] Chinese Patent Announcement CN 221271531 U discloses an autoclave with uniform internal steam heating, including an autoclave body, an autoclave lid, an auxiliary heating device, and a steam circulation device. The auxiliary heating device includes a bottom heating wire located at the bottom of the autoclave body and side heating wires located at the lower middle part of the left and right sides of the autoclave body. It can heat the steam in the lower part of the autoclave and promote the circulation of steam in the autoclave during the heat preservation and pressure preservation stage, so as to make the steam temperature in the autoclave uniform.

[0004] The existing technical solution described above has the following shortcomings: the steam inlet of the device is only located at the bottom of the autoclave, which means that when the steam fills the autoclave, it can only rely on its own upward evaporation, resulting in uneven heating inside the autoclave. In actual use, the material rack connected to the guide rail is generally located at the bottom of the autoclave, which blocks the steam inlet, thus easily causing dead zones in the steam jet, further affecting the uniform heating inside the autoclave. Therefore, there is room for improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology where the steam injection direction is unidirectional, which easily causes injection dead angles and affects the uniform heating inside the autoclave. This utility model proposes an autoclave with uniform internal steam heating.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an autoclave with uniform internal steam heating, comprising: an autoclave body, multiple exhaust pipes are installed in a ring inside the autoclave body, the two ends of the exhaust pipes are rotatably connected to the autoclave body through bearing seats, multiple exhaust heads are installed at equal intervals on the inner side of the exhaust pipes, the multiple exhaust pipes are distributed in an inverted pentagonal shape inside the autoclave body, one end of the multiple exhaust pipes is connected to an air inlet assembly, one end of the air inlet assembly extends to the outside of the autoclave body, a reciprocating rotation mechanism is provided inside the autoclave body near the air inlet assembly, one end of the reciprocating rotation mechanism extends to the outside of the autoclave body and is connected to a control assembly, multiple circulation pipes pass through the top of the autoclave body, and two parallel guide rails are fixed at the bottom inside the autoclave body;

[0007] The reciprocating rotation mechanism includes multiple fixed guide blocks fixed on the inner wall of the autoclave body. A guide ring is sleeved on the inner side of the multiple fixed guide blocks. A rotating gear ring is fixed on the outer side of the guide ring. The rotating gear ring and the autoclave body are rotatably connected. A gear is sleeved on one end of the exhaust pipe. One side of the gear meshes with the outer side of the rotating gear ring. A three-pronged rod is fixed on the inner side of the guide ring. A connecting shaft is fixed at the center of the three-pronged rod. One end of the connecting shaft passes through the center of one end of the autoclave body.

[0008] Preferably, the teeth on the rotating gear ring are distributed in five groups, and the length of the teeth distribution limits the rotation range of the gear to ≤120°.

[0009] Preferably, the control component includes a motor fixed to one end of the autoclave body, a crank connected to one end of the motor, a swing plate fixed to the outer end of the connecting shaft, an elongated hole at the bottom of the swing plate, and one end of the crank penetrating into the elongated hole.

[0010] Preferably, the elongated hole is located below the connecting shaft, and the length of the elongated hole is adapted to the rotation diameter of the crank.

[0011] Preferably, the air intake assembly includes an air intake pipe that runs through one end of the autoclave body. One end of the air intake pipe located inside the autoclave body is connected to an annular pipe. Multiple L-shaped connecting pipes are connected at equal intervals on the outer side of the annular pipe. One end of each L-shaped connecting pipe is rotatably connected to one end of an exhaust pipe on the same side via a rotating bearing.

[0012] Preferably, the annular pipe and the autoclave body are coaxially and collinearly distributed, with the annular pipe sleeved outside the connecting shaft, and the outer end of the air inlet pipe connected to an external steam supply device.

[0013] Preferably, temperature sensors are installed on the inner wall of the autoclave body near the exhaust pipe, and multiple heaters are installed in a ring at one end of the autoclave body. The heating ends of the heaters extend into the interior of the L-shaped connecting pipe on the same side, and the temperature sensors and heaters are electrically connected.

[0014] Compared with the prior art, the beneficial effects of this utility model include:

[0015] By using an inverted pentagonal distribution of exhaust pipes, steam can be evenly filled into the inner cavity of the autoclave. Simultaneously, the coordination of control components and a reciprocating rotation mechanism ensures that each exhaust head injects steam in a 120° cyclic rotation, thereby increasing the steam injection range, significantly reducing dead zones, and improving the steam diffusion rate within the autoclave. This further enhances the uniform diffusion and heating of steam within the autoclave's inner cavity. Furthermore, the use of heaters and temperature sensors allows for real-time temperature monitoring of various areas within the autoclave's inner cavity. Selective heating of the steam inside each exhaust pipe ensures uniform heating within the autoclave's inner cavity. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0017] Figure 1 The schematic diagram shows a three-dimensional structural schematic diagram according to one embodiment of the present utility model;

[0018] Figure 2 The schematic diagram shows a three-dimensional structural view of the interior of the autoclave body according to one embodiment of the present invention;

[0019] Figure 3 The schematic diagram shows a three-dimensional structural diagram of the exhaust pipe distribution according to one embodiment of the present utility model;

[0020] Figure 4 The schematic diagram shows a three-dimensional structural diagram of the reciprocating rotation mechanism according to one embodiment of the present invention.

[0021] Numbered components in the diagram: 1. Autoclave body; 2. Circulation pipe; 3. Air inlet assembly; 31. Air inlet pipe; 32. Annular pipe; 33. L-shaped connecting pipe; 34. Rotary bearing; 4. Control assembly; 41. Motor; 42. Crank; 43. Swing plate; 44. Elongated hole; 5. Exhaust pipe; 6. Exhaust head; 7. Heater; 8. Temperature sensor; 9. Reciprocating rotation mechanism; 91. Rotating gear ring; 92. Fixed guide block; 93. Guide ring; 94. Gear; 95. Trident; 96. Connecting shaft; 10. Guide rail. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] To address the shortcomings of existing technologies, such as the unidirectional steam injection, which easily creates injection dead zones and affects the uniform heating inside the autoclave, the following solution is disclosed, as follows: Figures 1-4 As shown:

[0024] An autoclave with uniform internal steam heating includes: an autoclave body 1, with multiple exhaust pipes 5 annularly installed inside the autoclave body 1. The two ends of the exhaust pipes 5 are rotatably connected to the autoclave body 1 via bearing seats. Multiple exhaust heads 6 are installed at equal intervals on the inner side of the exhaust pipes 5. The multiple exhaust pipes 5 are distributed in an inverted pentagonal pattern inside the autoclave body 1. One end of the multiple exhaust pipes 5 is connected to an air intake assembly 3. One end of the air intake assembly 3 extends to the outside of the autoclave body 1. A reciprocating rotation mechanism 9 is provided inside the autoclave body 1 near the end of the air intake assembly 3. One end of the reciprocating rotation mechanism 9 extends to the outside of the autoclave body 1 and is connected to a control assembly 4. Multiple circulation pipes 2 pass through the top of the autoclave body 1. Two parallel guide rails 10 are fixed at the bottom inside the autoclave body 1.

[0025] The reciprocating rotation mechanism 9 includes multiple fixed guide blocks 92 fixed on the inner wall of the autoclave body 1. A guide ring 93 is sleeved on the inner side of the multiple fixed guide blocks 92. A rotating gear ring 91 is fixed on the outer side of the guide ring 93. The rotating gear ring 91 and the autoclave body 1 are rotatably connected. A gear 94 is sleeved on one end of each exhaust pipe 5. One side of each gear 94 meshes with the outer side of the rotating gear ring 91. A three-pronged rod 95 is fixed on the inner side of the guide ring 93. A connecting shaft 96 is fixed at the center of the three-pronged rod 95. One end of the connecting shaft 96 passes through the center of one end of the autoclave body 1.

[0026] The teeth on the rotating gear ring 91 are distributed in five groups, and the length of the tooth distribution limits the rotation range of the gear 94 to ≤120°;

[0027] The control component 4 includes a motor 41 fixed to one end of the autoclave body 1. One end of the motor 41 is connected to a crank 42. A swing plate 43 is fixed to the outer end of the connecting shaft 96. An elongated hole 44 is opened at the bottom of the swing plate 43. One end of the crank 42 passes through the interior of the elongated hole 44.

[0028] The elongated hole 44 is located below the connecting shaft 96, and the length of the elongated hole 44 is adapted to the rotation diameter of the crank 42;

[0029] The air intake assembly 3 includes an air intake pipe 31 that runs through one end of the autoclave body 1. One end of the air intake pipe 31 located inside the autoclave body 1 is connected to an annular pipe 32. Multiple L-shaped connecting pipes 33 are connected at equal intervals on the outer side of the annular pipe 32. One end of each L-shaped connecting pipe 33 is rotatably connected to one end of the exhaust pipe 5 on the same side through a rotating bearing 34.

[0030] The annular pipe 32 and the autoclave body 1 are coaxially and collinearly distributed. The annular pipe 32 is sleeved on the outside of the connecting shaft 96, and the outer end of the air inlet pipe 31 is connected to the external steam supply equipment.

[0031] Temperature sensors 8 are installed on the inner wall of the autoclave body 1 on the side near the exhaust pipe 5. Multiple heaters 7 are installed in a ring at one end of the autoclave body 1. The heating ends of the heaters 7 extend into the interior of the L-shaped connecting pipe 33 on the same side. The temperature sensors 8 and the heaters 7 are electrically connected.

[0032] In this embodiment, by activating the external steam supply equipment, steam is introduced into the exhaust pipe 5 along the inlet pipe 31, the annular pipe 32, and the L-shaped connecting pipe 33, and then discharged into the interior of the autoclave body 1 through the exhaust head 6. The multiple exhaust pipes 5 distributed in an inverted pentagonal pattern allow the steam to diffuse and fill the interior cavity of the autoclave body 1 evenly. Simultaneously, the motor 41 is activated, causing the crank 42 to rotate. Since one end of the crank 42 is always located inside the elongated hole 44, the swing plate 43 swings back and forth about the connecting shaft 96, causing the connecting shaft 96 to rotate synchronously. This, in turn, drives the three-pronged rod 95 and the rotating gear ring 91 to rotate synchronously. Since the outer side of the rotating gear ring 91 and the gear 94 are always meshed, the exhaust pipe 5 rotates back and forth, causing the exhaust head 6 to swing within a 120° range. This increases the range of steam injection from the exhaust head 6, avoids the generation of steam injection dead zones, and further promotes the rapid filling of the interior of the autoclave body 1 with steam, thereby improving the uniform heating effect inside the autoclave body 1.

[0033] Meanwhile, temperature sensor 8 is used to monitor the temperature of the steam injection area where a single exhaust pipe 5 is located in real time. When there is a significant temperature difference between multiple temperature sensors 8, heater 7 in the low-temperature area is automatically activated, so that heater 7 can further heat the steam inside L-shaped connecting pipe 33, thereby promoting the temperature of steam entering the autoclave body 1, so as to ensure the uniform heating effect inside the autoclave body 1. At the same time, excess steam is returned to the steam system through circulation pipe 2 for circulation heating.

[0034] The scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A pressure retort having internal steam uniformity, characterized by, include: The autoclave body has multiple exhaust pipes installed in a ring inside. The two ends of the exhaust pipes are rotatably connected to the autoclave body through bearing seats. Multiple exhaust heads are installed at equal intervals on the inner side of the exhaust pipes. The multiple exhaust pipes are distributed in an inverted pentagonal shape inside the autoclave body. One end of the multiple exhaust pipes is connected to an air intake assembly. One end of the air intake assembly extends to the outside of the autoclave body. A reciprocating rotation mechanism is provided inside the autoclave body near the air intake assembly. One end of the reciprocating rotation mechanism extends to the outside of the autoclave body and is connected to a control assembly. Multiple circulation pipes pass through the top of the autoclave body. Two parallel guide rails are fixed at the bottom inside the autoclave body. The reciprocating rotation mechanism includes multiple fixed guide blocks fixed on the inner wall of the autoclave body. A guide ring is sleeved on the inner side of the multiple fixed guide blocks. A rotating gear ring is fixed on the outer side of the guide ring. The rotating gear ring and the autoclave body are rotatably connected. A gear is sleeved on one end of each exhaust pipe. One side of each gear meshes with the outer side of the rotating gear ring. A three-pronged rod is fixed on the inner side of the guide ring. A connecting shaft is fixed at the center of the three-pronged rod. One end of the connecting shaft passes through the center of one end of the autoclave body.

2. The internally steam-uniformed autoclave according to claim 1, characterized in that: The teeth on the rotating gear ring are distributed in five groups, and the length of the teeth distribution limits the rotation range of the gear to ≤120°.

3. The internally steam-uniformized autoclave according to claim 1, characterized in that: The control component includes a motor fixed to one end of the autoclave body, a crank connected to one end of the motor, a swing plate fixed to the outer end of the connecting shaft, an elongated hole at the bottom of the swing plate, and one end of the crank penetrating into the elongated hole.

4. The internally steam-uniformized autoclave according to claim 3, characterized in that: The elongated hole is located below the connecting shaft, and the length of the elongated hole is adapted to the rotation diameter of the crank.

5. The internally steam-uniformized autoclave according to claim 1, characterized in that: The air intake assembly includes an air intake pipe that runs through one end of the autoclave body. One end of the air intake pipe located inside the autoclave body is connected to an annular pipe. Multiple L-shaped connecting pipes are connected at equal intervals around the outside of the annular pipe. One end of each L-shaped connecting pipe is rotatably connected to one end of an exhaust pipe on the same side via a rotating bearing.

6. The internally steam-uniformized autoclave according to claim 5, characterized in that: The annular tube and the autoclave body are coaxially and collinearly distributed. The annular tube is sleeved outside the connecting shaft, and the outer end of the air inlet pipe is connected to an external steam supply device.

7. The internally steam-uniformized autoclave according to claim 5, characterized in that: Temperature sensors are installed on the inner wall of the autoclave body near the exhaust pipe. Multiple heaters are installed in a ring at one end of the autoclave body. The heating ends of the heaters extend into the interior of the L-shaped connecting pipe on the same side. The temperature sensors and heaters are electrically connected.

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