CN218139335U - Infrared radiation auxiliary heating autoclave - Google Patents
Infrared radiation auxiliary heating autoclave Download PDFInfo
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- CN218139335U CN218139335U CN202221652758.XU CN202221652758U CN218139335U CN 218139335 U CN218139335 U CN 218139335U CN 202221652758 U CN202221652758 U CN 202221652758U CN 218139335 U CN218139335 U CN 218139335U
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- autoclave
- heating
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- infrared radiation
- curing bin
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Abstract
The utility model discloses an infrared radiation auxiliary heating autoclave, which comprises a tank body and a heating and flow guiding system; a curing bin is arranged in the tank body, a plurality of frame-type moulds are arranged in the curing bin along the length direction of the tank body, a product to be processed is placed above the plurality of frame-type moulds, and a plurality of thermocouples are arranged on the product; the heating diversion system is used for heating the product in a convection heat exchange mode; and an infrared radiation heating plate is arranged below each frame type die, and the thermocouples, the infrared radiation heating plates and the heating diversion system are all connected to a PLC control system of the autoclave. The utility model discloses can control different position department product temperature variation accurately in piecemeal subregion to guarantee that the inside difference in temperature of whole product is less, improve product quality and solidification efficiency.
Description
Technical Field
The utility model relates to an autoclave field, concretely relates to infrared radiation auxiliary heating autoclave.
Background
In recent years, with the domestic demand for large composite structures, there has been an increasing demand for effective working dimensions of autoclaves. Along with the increase of the effective diameter and the effective length of the autoclave, the temperature nonuniformity of the product in the curing process is more obvious, the autoclave and the product are longer, and the heat exchange effect of the product along the length direction is gradually reduced, so that the product quality and the curing efficiency are influenced. China aims at solving the problems that few solutions for temperature uniformity in autoclave curing engineering need more solutions to treat the temperature uniformity.
The domestic scholars propose that the heat exchange efficiency of the product is enhanced by enhancing the gas flow around the product in a fan thermal compensation mode, but the main stream wind speed flows along the axial direction, the auxiliary fan wind speed flows along the direction orthogonal to the main stream wind speed, and the auxiliary fan wind speed is converged to form larger turbulence, so that the accurate wind speed and flow field conditions around the product are difficult to control, and the method is difficult to accurately control the temperature difference of the product.
Disclosure of Invention
The utility model aims at providing an infrared radiation auxiliary heating autoclave for solve the problem that is difficult to the accurate control product difference in temperature that prior art exists.
In order to realize the task, the utility model discloses a following technical scheme:
an infrared radiation auxiliary heating autoclave comprises a tank body and a heating flow guide system;
a curing bin is arranged in the tank body, a plurality of frame-type moulds are arranged in the curing bin along the length direction of the tank body, a product to be processed is placed above the plurality of frame-type moulds, and a plurality of thermocouples are arranged on the product; the heating diversion system is used for heating the product in a convection heat exchange mode;
and an infrared radiation heating plate is arranged below each frame type die, and the thermocouple, the infrared radiation heating plate and the heating and flow guiding system are all connected to a PLC control system of the autoclave.
Further, the length of the autoclave is 20-35m, and the volume is 2000-2500m 3 。
Furthermore, the front end and the rear end of the autoclave are respectively provided with a circular arc-shaped front seal head and a circular arc-shaped rear seal head, wherein the front seal head can be opened or closed relative to the autoclave body; and (4) loading the product after opening the front seal head.
Further, the heating and flow guiding system comprises a plurality of main heaters and fans, wherein the main heaters are distributed on the arc-shaped inner wall surface of the tail end enclosure; the fan sets up two at the arc internal face of tail head, and the air outlet orientation of two fans is crossing.
Furthermore, the air outlets of the two fans are connected to an air guide cone together;
the curing bin is arranged inside the autoclave through a bracket, the front end of the curing bin is an air inlet, the rear end of the curing bin is provided with a cooling heat exchanger, and the air guide cone is connected with the cooling heat exchanger;
and an air guide channel is formed between the outer wall of the curing bin and the inner wall of the autoclave.
Furthermore, the product of treating processing is airfoil type frock, the quantity of infrared radiation hot plate is not less than 6.
Compared with the prior art, the utility model has the following technical characteristics:
1. under the prerequisite of guaranteeing structural function, add the infrared radiation hot plate below the product, pass through the radiation mode with the heat and transmit the product on to change product self temperature size, avoided changing the flow field condition, control changes the variable of heat transfer coefficient, effectual control product temperature.
2. Because the product length is longer, the temperature presents the decline trend along the flow direction, adds a plurality of infrared radiation hot plates, and the product temperature change of different positions department is controlled accurately to the subregion of piecemeal to guarantee that the inside difference in temperature of whole product is less, improve product quality and solidification efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The reference numbers in the figures illustrate: 1 tank body, 2 heating and flow guiding systems, 3 front end sockets, 4 tail end sockets, 5 main heaters, 6 fans, 7 air guide cones, 8 cooling heat exchangers, 9 curing bins, 10 air guide channels, 11 air inlets, 12 infrared radiation heating plates, 13 frame type molds and 14 products.
Detailed Description
The ultra-large autoclave mainly produces the reason of the difference in temperature to the temperature homogeneity problem of similar wing section frock product: the effective length of the ultra-large autoclave reaches 20-35m, and the surface temperature difference of the product is caused by different heat exchange coefficients along the length direction; because the frame type mould is arranged below the product, the gas is turbulent around the frame structure, so that the flow velocity below the product is reduced, the heat exchange coefficient of the area is reduced, and the phenomenon that the temperature of the upper surface of the product is higher than that of the lower surface of the product is caused.
Referring to fig. 1, the utility model provides an infrared radiation assisted heating autoclave, which comprises a autoclave body 1 and a heating diversion system 2;
a curing bin 9 is arranged in the tank body 1, a plurality of frame-type moulds 13 are arranged in the curing bin 9 along the length direction of the tank body 1, a product 14 to be processed is placed above the plurality of frame-type moulds 13, and a plurality of thermocouples are arranged on the product 14; the heating and flow guiding system 2 is used for heating the product 14 in a convection heat exchange manner;
an infrared radiation heating plate 12 is arranged below each frame type mold 13, and the thermocouples, the infrared radiation heating plates 12 and the heating diversion system 2 are all connected to a PLC control system of the autoclave.
In the scheme, the internal pressure of the autoclave is kept as the working pressure in the working state, the heating and guiding system 2 is controlled by the PLC control system to carry out main heating, and heat is transferred to the product 14 in a convection heat exchange mode; when a plurality of thermocouples arranged on the product 14 monitor that the temperature of the product is inconsistent with the temperature of a preset process curve, the PLC control system controls the infrared radiation heating plate 12 to start working, and the radiation heating mode is performed below the product 14 to assist heat compensation, so that the temperature difference in the whole product 14 is reduced, the curing efficiency is improved, and the quality of the product 14 is improved. By laying the infrared radiation heating plate 12 under different areas of the product 14, the temperature of each area of the product 14 is accurately controlled, and the overall temperature difference of the product 14 is reduced.
In this embodiment, the product 14 to be processed is a wing-shaped tool, and the number of the infrared radiation heating plates 12 is not less than 6; in principle, the more the infrared radiation plates are arranged, the better the heating effect is controlled by different areas. Through monitoring different regional product 14 thermocouple temperature and the comparison of technology curve temperature, exert the radiant heating volume of corresponding power to the infrared radiation hot plate 12 of product 14 different region below respectively to carrying out thermal compensation to the product 14 in each region, along with each regional temperature of product 14 rises gradually, infrared radiation hot plate 12 power reduces gradually, makes the inside whole difference in temperature of product 14 reduce gradually, the product 14 temperature is close gradually with technology curve temperature, improves solidification efficiency, promotes the product 14 quality.
On the basis of the above scheme, the other parts of the present invention will be further explained.
The frame type mould 13 in the scheme is a rectangular frame or other frame structures and is used for fixing and supporting a product 14; the number and size of the frames are determined according to the size of the product 14 to be processed.
The length of the autoclave in the scheme is 20-35m, and the volume is 2000-2500m 3 。
The front end and the rear end of the autoclave are respectively provided with a circular arc-shaped front end enclosure 3 and a circular arc-shaped rear end enclosure 4, wherein the front end enclosure 3 can be opened or closed relative to the tank body 1; the loading of the product 14 is performed after the front closure 3 is opened.
The heating and flow guiding system comprises a main heater 5 and a fan 6, wherein the main heater 5 is distributed on the arc-shaped inner wall surface of the tail end socket 4; two fans 6 are arranged on the arc-shaped inner wall surface of the tail end socket 4, the air outlets of the two fans 6 are intersected in the direction, and the air outlets of the two fans 6 are connected to an air guide cone 7 together;
the curing bin 9 is arranged inside the autoclave through a support, the front end of the curing bin 9 is an air inlet 11, the rear end of the curing bin 9 is provided with a cooling heat exchanger 8, and the air guide cone 7 is connected with the cooling heat exchanger 8;
and an air guide channel 10 is formed between the outer wall of the curing bin 9 and the inner wall of the autoclave.
The working process of the heating diversion system is as follows:
in the working state of the autoclave, a main heater 5 and two fans 6 are turned on; the heating power of the main heater 5 is controlled by a PLC control system according to the curing temperature process curve of the product 14 and a thermocouple arranged on the product 14; after the fan 6 works, the air flow in the curing bin 9 is driven to pass through the cooling heat exchanger 8 and the air guide cone 7 and then reach the tail end enclosure 4 to be heated by the main heater 5, the hot air reaches the front end enclosure 3 from the air guide channel 10 between the outer wall of the curing bin 9 and the inner wall of the autoclave to be converged, then enters the curing bin 9 from the air inlet 11 at the front end of the curing bin 9 and is transmitted to a product 14 in a convection heat exchange mode, and then returns to the tail end enclosure 4 to form a heat exchange cycle; when a plurality of thermocouples disposed on the product 14 monitor that the temperature thereof is not in accordance with the preset process curve temperature, the infrared radiation heating panel 12 is operated to perform the auxiliary heat compensation.
According to the heating and curing process of the product 14, the product 14 needs to be heated to a certain high temperature, and after heat preservation and curing, the product 14 and the tank body 1 are cooled to normal temperature through media. The cooling heat exchanger 8 does not intervene in the heating process of the product 14, and after the main heater 5 and the infrared radiation heating plate 12 are closed in the cooling stage, the cooling heat exchanger 8 is opened for cooling and heat exchange, so that the interior of the tank body 1 is rapidly cooled.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (6)
1. An infrared radiation auxiliary heating autoclave is characterized by comprising a autoclave body (1) and a heating diversion system (2);
a curing bin (9) is arranged in the tank body (1), a plurality of frame-type moulds (13) are arranged in the curing bin (9) along the length direction of the tank body (1), a product (14) to be processed is placed above the plurality of frame-type moulds (13), and a plurality of thermocouples are arranged on the product (14); the heating diversion system (2) is used for heating the product (14) in a convection heat exchange mode;
an infrared radiation heating plate (12) is arranged below each frame type mold (13), and the thermocouples, the infrared radiation heating plates (12) and the heating diversion system (2) are all connected to a PLC control system of the autoclave.
2. An infrared radiation assisted heating autoclave as claimed in claim 1, characterized in that the autoclave has a length of 20-35m and a volume of 2000-2500m 3 。
3. The infrared radiation auxiliary heating autoclave as claimed in claim 1, wherein the front end and the rear end of the autoclave are respectively provided with a circular arc-shaped front end enclosure (3) and a circular arc-shaped rear end enclosure (4), wherein the front end enclosure (3) can be opened or closed relative to the autoclave body (1); the loading of the products (14) is carried out after the front end enclosure (3) is opened.
4. The infrared radiation auxiliary heating autoclave as claimed in claim 1, wherein the heating diversion system (2) comprises a plurality of main heaters (5) and fans (6), wherein the main heaters (5) are distributed on the arc-shaped inner wall surface of the end socket (4); two fans (6) are arranged on the arc-shaped inner wall surface of the tail end enclosure (4), and the air outlets of the two fans (6) face to intersect.
5. The autoclave with the auxiliary heating function by the infrared radiation as the claim 4, characterized in that the air outlets of the two fans (6) are connected to a wind guide cone (7);
the curing bin (9) is arranged inside the autoclave through a support, the front end of the curing bin (9) is an air inlet (11), the rear end of the curing bin (9) is provided with a cooling heat exchanger (8), and the air guide cone (7) is connected with the cooling heat exchanger (8);
and an air guide channel (10) is formed between the outer wall of the curing bin (9) and the inner wall of the autoclave.
6. The autoclave of claim 1, characterized in that the product (14) to be processed is a wing-type tooling, and the number of the infrared radiation heating plates (12) is not less than 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221652758.XU CN218139335U (en) | 2022-06-29 | 2022-06-29 | Infrared radiation auxiliary heating autoclave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221652758.XU CN218139335U (en) | 2022-06-29 | 2022-06-29 | Infrared radiation auxiliary heating autoclave |
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| Publication Number | Publication Date |
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| CN218139335U true CN218139335U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221652758.XU Active CN218139335U (en) | 2022-06-29 | 2022-06-29 | Infrared radiation auxiliary heating autoclave |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117507412A (en) * | 2024-01-04 | 2024-02-06 | 江苏奥琳斯邦装备科技股份有限公司 | Autoclave for carbon fiber forming |
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2022
- 2022-06-29 CN CN202221652758.XU patent/CN218139335U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117507412A (en) * | 2024-01-04 | 2024-02-06 | 江苏奥琳斯邦装备科技股份有限公司 | Autoclave for carbon fiber forming |
| CN117507412B (en) * | 2024-01-04 | 2024-04-23 | 江苏奥琳斯邦装备科技股份有限公司 | Autoclave for carbon fiber forming |
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