Three-fan autoclave

Abstract

The present invention provides a three-blower autoclave, which relates to the technical field of autoclaves and aims to solve the problem of poor ability of a single blower in an existing autoclave to promote internal air circulation. The technical solution adopted is that a circulation cavity is formed between an outer layer and an inner layer, and the circulation cavity is connected to the interior of the inner layer. The inner layer is a shell that is transparent at one end, and a cooler, a heater and an air guide cover are sequentially arranged on the other end of the inner layer. The air guide cover is provided with mounting holes, and there are three groups of mounting holes, on which a first blower, a second blower and a third blower are respectively installed. The cooler, the heater, the first blower, the second blower and the third blower are connected to a PLC controller. By arranging three groups of blowers on the air guide cover, and the three groups of blowers are evenly distributed on the air guide cover, the cooperation of the three groups of blowers can quickly make the air inside the autoclave flow, thereby solving the problem that the autoclave is large in size and a single blower cannot efficiently complete air circulation.

Description

Technical Field

[0001] The present invention relates to the technical field of autoclaves, in particular to a three-blower autoclave. Background Art

[0002] The autoclave is the main production equipment for aviation composite materials. It is composed of an integrated heating system, fan system, cooling system, pressure system, vacuum system, control system, safety system and other mechanical auxiliary facilities. The common structure is a cylinder with one end closed and the other end open. The autoclave provides the necessary heat and pressure for the compaction and curing of advanced composite products.

[0003] Chinese patent CN201820746215.1 discloses an industrial autoclave, which adopts the following technical solution: it includes an autoclave body, a closed end is provided at one end of the autoclave body, a motor is provided on the closed end, a fan is connected to the output shaft of the motor through a coupling, an electric heater is connected to the air outlet of the fan, a cooler is connected to the side of the electric heater away from the fan, a support base is provided at the bottom of the autoclave body, a sliding base is provided at the bottom of the autoclave body, a sliding slide is provided on the sliding base, a vacuum bag is provided on the slide, a sealing strip is provided at the connection between the vacuum bag and the slide, an openable or closable tank door is provided at the other end of the autoclave body, and a pressure control valve connected to the autoclave body is provided on the upper part of the autoclave body.

[0004] The above technical solution can achieve good thermal insulation effect, effectively save energy and reduce heat loss, but there are still the following shortcomings. Some aviation materials are large in size. When processing them, the internal volume of the autoclave needs to be customized according to the size of the material to be processed. When the large-sized autoclave is heating or cooling the interior, the internal air circulation effect driven by the operation of a single fan is poor. The fan power is insufficient and the internal air cannot be circulated quickly, resulting in the problem of high local temperature. When the autoclave is processed, the interior is in a vacuum state. Directly controlling the fan rotation to drive the internal air flow is subject to greater resistance, requires higher power, and easily causes energy waste. There is an urgent need for a three-fan autoclave to solve the above problems. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention discloses a three-blower autoclave, which adopts the following technical solution: it includes an autoclave body, a support is provided at the bottom of the autoclave body, the autoclave body includes an inner layer and an outer layer, a tank door is connected to the autoclave body, and the autoclave body is also connected to an external PLC controller; a circulation cavity is formed between the outer layer and the inner layer, the circulation cavity is communicated with the interior of the inner layer, the inner layer is a shell with one end being transparent, and a cooler, a heater and a drainage hood are provided in sequence on the other end of the inner layer. The air guide cover is provided with a mounting hole, and the mounting hole is provided with three groups, on which a No. 1 fan, a No. 2 fan and a No. 3 fan are installed respectively. The cooler, the heater, the No. 1 fan, the No. 2 fan and the No. 3 fan are connected to the PLC controller. By providing three groups of fans on the air guide cover, and the three groups of fans are evenly distributed on the air guide cover, with the cooperation of the three groups of fans, the air inside the autoclave can be quickly circulated, thereby solving the problem that the autoclave is large in size and a single fan cannot efficiently complete the air circulation.

[0006] As a preferred technical solution of the present invention, the No. 1 fan and the No. 3 fan are symmetrically arranged on the air duct with the No. 2 fan as the center.

[0007] As a preferred technical solution of the present invention, the drainage cover includes a truncated cone portion and a circular ring portion, and the mounting holes are provided on the truncated cone portion and are evenly distributed on the truncated cone portion.

[0008] As a preferred technical solution of the present invention, an auxiliary drainage mechanism is also provided on the circular ring portion, and the auxiliary drainage mechanism includes a swivel and a drainage plate. A rotating groove is opened on the circular ring portion, and the swivel is rotatably connected in the rotating groove. The swivel is driven by a motor, and multiple groups of drainage plates are provided on the swivel. An auxiliary drainage mechanism is set on the guide cover, and the swivel on the auxiliary drainage mechanism cooperates with the drainage plate. When the fan is working, the drainage plate is driven to rotate by the swivel, so that the drainage plate can drive the air in the drainage cover to flow, thereby reducing the resistance when the fan is started and reducing energy consumption.

[0009] As a preferred technical solution of the present invention, the motor is installed on the annular portion through a motor seat, a gear is connected to the output end of the motor, a tooth groove meshing with the gear is provided on the rotating ring, and the motor is connected to the PLC controller.

[0010] As a preferred technical solution of the present invention, a guide mechanism is also provided on the conical portion of the drainage hood, and the guide mechanism includes a flap and an electric push rod. A through hole is opened on the conical portion, and the flap is rotatably connected in the through hole. The flap is controlled to flip by the electric push rod. The electric push rod is connected to the PLC controller. A flap is provided on the drainage hood, and its flipping is controlled by the electric push rod. The through hole on the drainage hood can be opened, and the high-temperature air in the drainage hood can be accelerated to enter the outside of the drainage hood, forming a circulation, so that the internal temperature rises quickly and evenly.

[0011] As a preferred technical solution of the present invention, the flaps are provided in two groups and are symmetrically arranged on the upper and lower sides of the drainage cover.

[0012] As a preferred technical solution of the present invention, a sliding groove is provided on the upper surface of the flap, a slider is slidably connected in the sliding groove, and the slider is connected to the telescopic end of the electric push rod through a connecting rod.

[0013] The beneficial effects of the present invention are as follows: the present invention provides three groups of fans on the air guide cover, and the three groups of fans are evenly distributed on the air guide cover. With the cooperation of the three groups of fans, the air inside the autoclave can be quickly circulated, thereby solving the problem that the autoclave is large in size and a single fan cannot efficiently complete the air circulation; an auxiliary drainage mechanism is provided on the air guide cover, and the rotating ring on the auxiliary drainage mechanism cooperates with the drainage plate. When the fan is working, the drainage plate is driven to rotate by the rotating ring, so that the drainage plate can drive the air in the drainage cover to flow, thereby reducing the resistance when the fan is started and reducing energy consumption; a flap is provided on the drainage cover, and its flip is controlled by an electric push rod, which can open the through hole on the drainage cover, accelerate the high-temperature air in the drainage cover to enter the outside of the drainage cover, form a circulation, and make the interior temperature rise quickly and evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is an internal cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the air guide cover of the present invention;

[0018] Figure 4 Schematic diagram of the annular structure of the present invention;

[0019] Figure 5 It is a schematic diagram of the local structure of the present invention.

[0020] In the figure: 1. Autoclave body; 2. Support; 3. Tank door; 4. Fan No. 1; 5. Fan No. 2; 6. Fan No. 3; 7. Electric push rod; 8. Drain cover; 9. Flap; 10. Slide; 11. Motor; 12. Rotating ring; 13. Drain plate; 14. Gear; 15. Rotating groove; 16. Tooth groove; 17. Slider; 81. Cone part; 82. Circular ring part. DETAILED DESCRIPTION

[0021] Example 1

[0022] like Figures 1 to 5 As shown, the present invention discloses a three-fan autoclave, and the technical solution adopted is that it includes an autoclave body 1, a support 2 is provided at the bottom of the autoclave body 1, the autoclave body 1 includes an inner layer and an outer layer, a tank door 3 is connected to the autoclave body 1, and the autoclave body 1 is also connected to an external PLC controller; a circulation cavity is formed between the outer layer and the inner layer, and the circulation cavity is communicated with the interior of the inner layer, the inner layer is a shell with a transparent end, and a cooler, a heater and a drainage cover 8 are sequentially provided on the other end of the inner layer, in order to solve the problem that the air volume of a single fan circulation is small and cannot meet the needs of a large-scale autoclave. Regarding the problem of air circulation in the tank, the hood 8 is provided with mounting holes, and there are three groups of mounting holes, on which fan No. 1 4, fan No. 2 5 and fan No. 3 6 are respectively installed. The cooler, the heater, fan No. 1 4, fan No. 2 5 and fan No. 3 6 are connected to the PLC controller. Fan No. 1 4 and fan No. 3 6 are symmetrically arranged on the hood 8 with fan No. 2 5 as the center. The hood 8 includes a frustum portion 81 and an annular portion 82. The mounting holes are provided on the frustum portion 81 and are evenly distributed on the frustum portion 81.

[0023] When the fan is started, the interior of the autoclave body 1 is in a vacuum state, and the resistance is large when the fan circulates air. In order to solve this problem, an auxiliary drainage mechanism is also provided on the annular portion 82, and the auxiliary drainage mechanism includes a swivel 12 and a guide plate 13. A rotating groove 15 is provided on the annular portion 82, and the swivel 12 is rotatably connected in the rotating groove 15. The swivel 12 is driven by a motor 11, and multiple groups of guide plates 13 are provided on the swivel 12. The motor 11 is installed on the annular portion 82 through a motor seat. A gear 14 is connected to the output end of the motor 11, and a tooth groove 16 meshing with the gear 14 is provided on the swivel 12. The motor 11 is connected to the PLC controller.

[0024] In order to further accelerate the air flow between the inner layer and the outer layer and increase the air flow rate, a guide mechanism is also provided on the conical part 81 of the air guide hood 8, and the guide mechanism includes a flap 9 and an electric push rod 7. A through hole is provided on the conical part 81, and the flap 9 is rotatably connected in the through hole. The flap 9 is controlled to flip by the electric push rod 7. The electric push rod 7 is connected to the PLC controller. There are two groups of flaps 9, which are symmetrically arranged on the upper and lower sides of the air guide hood 8. A slide groove 10 is provided on the upper surface of the flap 9, and a slider 17 is slidably connected in the slide groove 10. The slider 17 is connected to the telescopic end of the electric push rod 7 through a connecting rod.

[0025] The working principle of the present invention is as follows: when in use, the workpiece to be processed is placed inside the autoclave body 1, the tank door 3 is closed, the autoclave body 1 is vacuumed, the heater is controlled to work and heat up by the PLC controller, the motor 11 is controlled to work, the gear 14 is driven to rotate, and the gear 14 is engaged with the tooth groove 16 on the rotating ring 12, driving the rotating ring 12 to rotate in the rotating groove 15, thereby driving the guide plate 13 to rotate. The guide plate 13 is tilted and can drive the air in the guide cover 8 to flow, reducing the power when the three fans are started and reducing energy consumption. The electric push rod 7 is controlled to work and retract, driving the slider 17 to slide in the slide groove 10, thereby driving the flap 9 to rotate around the hinge with the guide cover 8, opening the through hole on the guide cover 8, accelerating the air flow between the inner and outer layers, controlling the No. 1 fan 4, the No. 2 fan 5 and the No. 3 fan 6 to work, drawing the air in the inner layer outward, making it enter the circulation layer, making the internal air circulate quickly, and completing the uniform heating of the inside of the autoclave body 1.

[0026] The mechanical and circuit connections involved in the present invention are conventional means used by those skilled in the art, and technical inspiration can be obtained through limited experiments, and they are common knowledge.

[0027] Components not described in detail herein are prior art.

[0028] Although the specific embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention. Modifications or deformations that do not involve creative work are still within the scope of protection of the present invention.

Claims

1. A three-blower autoclave, comprising an autoclave body (1), a support (2) provided at the bottom of the autoclave body (1), the autoclave body (1) comprising an inner layer and an outer layer, a door (3) connected to the autoclave body (1), and the autoclave body (1) further connected to an external PLC controller; characterized in that: A circulation cavity is formed between the outer layer and the inner layer, and the circulation cavity is communicated with the interior of the inner layer. The inner layer is a shell with one end being transparent. A cooler, a heater and a draft hood (8) are sequentially provided on the other end of the inner layer. The draft hood (8) is provided with mounting holes. The mounting holes are provided in three groups, and a No. 1 fan (4), a No. 2 fan (5) and a No. 3 fan (6) are installed respectively. The cooler, the heater, the No. 1 fan (4), the No. 2 fan (5) and the No. 3 fan (6) are connected to the PLC controller; the draft hood (8) includes a truncated cone portion (81) and an annular portion (82), the mounting holes are provided on the truncated cone portion (81) and are evenly distributed on the truncated cone portion (81); the annular portion ( The annular portion (82) is also provided with an auxiliary drainage mechanism, the auxiliary drainage mechanism comprising a rotating ring (12) and a drainage plate (13), a rotating groove (15) is provided on the annular portion (82), the rotating ring (12) is rotatably connected in the rotating groove (15), the rotating ring (12) is driven by a motor (11), and a plurality of drainage plates (13) are provided on the rotating ring (12); the truncated cone portion (81) of the drainage cover (8) is also provided with a flow guide mechanism, the flow guide mechanism comprising a flap (9) and an electric push rod (7), a through hole is provided on the truncated cone portion (81), the flap (9) is rotatably connected in the through hole, the flap (9) is turned over by the electric push rod (7), and the electric push rod (7) is connected to the PLC controller.

2. The three-blower autoclave according to claim 1, characterized in that: The first fan (4) and the third fan (6) are symmetrically arranged on the guide cover (8) with the second fan (5) as the center. superior.

3. The three-blower autoclave according to claim 1, characterized in that: The motor (11) is mounted on the annular portion (82) via a motor seat, a gear (14) is connected to the output end of the motor (11), a tooth groove (16) meshing with the gear (14) is provided on the rotating ring (12), and the motor (11) is connected to the PLC controller.

4. The three-blower autoclave according to claim 1, characterized in that: The flaps (9) are provided in two groups and are symmetrically arranged on the upper and lower sides of the drainage cover (8).

5. The three-blower autoclave according to claim 1, characterized in that: A sliding groove (10) is provided on the upper surface of the flap (9), a slider (17) is slidably connected in the sliding groove (10), and the slider (17) is connected to the telescopic end of the electric push rod (7) through a connecting rod.

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