An autoclave temperature calibration device

Abstract

The utility model relates to a device calibration technical field especially relates to a kind of autoclave temperature calibration devices, by whole small and can be placed to autoclave temperature measurement, by being equipped with several temperature probes, not only can realize the temperature of multiple point positions measured simultaneously;Through temperature insulation box including detachable seal joint as an organic whole upper cover and lower shell, host unit containing circuit board and battery is loaded in inner chamber, temperature insulation box is sequentially provided with rigid outer shell layer, heat insulation layer, vacuum layer and inner container layer from outside to inside, can play the role of scratch resistance, anti-pollution, fire prevention, flame retardant, heat insulation, easy cleaning;Sealing rubber strip of temperature insulation box opening is provided with aging resistance and good sealing property;By adopting spring snap lock joint upper cover and lower shell, not only convenient and durable, but also explosion-proof safety;Through host wireless communication, interface and computer connection, automatically calculate and process measured data, not only reduce the error of artificial calculation, improve data accuracy, and calibration efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of equipment calibration technology, and in particular to a temperature calibration device for an autoclave. Background Technology

[0002] Autoclaves are important equipment in the production of composite materials and are widely used in the aerospace field (aircraft wings, fuselages, rocket shells, satellite components, etc.) and the weapons industry (modification of protective armor, weapons, helmets, bulletproof glass, bulletproof vests, etc.). The hot pressing method has a wide range of applications, and composite materials produced by autoclave processes account for more than 50% of the total output of composite materials, and the proportion in the aerospace field is as high as 80%.

[0003] In practical use, autoclaves require maintaining a certain pressure and uniform temperature. This process is characterized by high energy consumption, numerous auxiliary materials, high cost, and extremely high temperature control requirements. To ensure that the workpieces and components achieve high strength, high toughness, corrosion resistance, and fatigue resistance, precise heat treatment of the raw materials and formed workpieces is necessary. This necessitates clear requirements for the overall performance of the autoclave, especially the accurate detection and verification of the pressure parameters and furnace temperature accuracy and uniformity within the autoclave. The heating furnace inside the autoclave is a high-temperature and closed heating system. During its operation, the fuel, air, and samples inside are in constant motion, and there are complex coupling effects of combustion, heat transfer, and flow. The furnace temperature is a type of object with large inertia, pure hysteresis, nonlinearity, and time-varying parameters. Due to the influence of these complex factors, mastering the temperature field of the heating furnace is both difficult and important.

[0004] Since autoclaves initially relied primarily on international technical standards, high-temperature wireless furnace temperature tracking and testing equipment with good temperature resistance and duration was mainly imported. However, various models of furnace temperature trackers and insulated boxes were required depending on the object being tested, the high-temperature range being tested, and the testing time. While domestic high-temperature furnace temperature testing equipment also exists, it lags behind imported equipment in terms of maximum temperature resistance, temperature resistance time, insulated box mode, and wireless transmission stability. In the field of metrology, there are currently no metrological calibration standards or calibration devices specifically for heat treatment furnaces under high-pressure environments. For a long time, autoclaves used in the aviation industry have not been able to undergo standardized and unified periodic metrology, failing to meet the metrological needs of autoclave users in the aviation industry. Utility Model Content

[0005] This utility model discloses a temperature calibration device for an autoclave, which aims to solve the technical problems existing in the prior art.

[0006] The present invention adopts the following technical solution: A temperature calibration device for an autoclave, for placement within the inner cavity of the autoclave, includes an insulated box, a main unit encapsulated within the cavity of the insulated box, and a temperature probe exposed within the insulated box; wherein... The insulated box includes a detachable and sealed upper cover and a lower shell that are connected as one piece. The upper cover and the lower shell are provided with a rigid outer shell layer, a heat insulation layer, a vacuum layer and an inner liner layer from the outside to the inside. The main unit includes a main unit housing, a circuit board and a battery installed in the inner cavity of the main unit housing. The main unit housing has a metal shell, and the top of the metal shell has a PEEK material boss. The flexible wires fixed on the circuit board are connected to the temperature probe through the boss and the heat insulation box.

[0007] In some embodiments, a sealing strip made of phenyl silicone rubber is provided at the joint surface of the upper cover and the lower housing, and the sealing strip is placed in a groove provided in the rigid outer shell layer of the lower housing.

[0008] In some embodiments, the thickness of the rigid outer shell layer made of stainless steel should be not less than 4 cm, and the outer layer is provided with a powder coating layer.

[0009] In some embodiments, the thickness of the insulation layer of the aluminum silicate rock wool insulation material should be not less than 5 cm.

[0010] In some embodiments, the thickness of the stainless steel inner liner layer formed by argon arc welding should be not less than 1.5 mm.

[0011] In some embodiments, the temperature probe includes a stainless steel probe housing and an internal temperature sensing element, wherein the temperature sensing element is a platinum resistance thermometer; a plurality of temperature probes are provided as required, and each is connected to the circuit board via the wires.

[0012] In some embodiments, the wire includes an inner layer of nickel-plated wire and an outer layer of mica fiberglass braided material, and the part connected to the temperature probe is armored and extends out from the inner cavity of the insulation box.

[0013] In some embodiments, the circuit board includes a controller, a memory, a Hall element, a wireless communication module, and a battery compartment, and the circuit board is connected to a computer via a wireless communication module.

[0014] In some embodiments, the back of the joint surface between the upper cover and the lower housing is provided with a hinge that can be movably fixed, and the front is provided with a spring-loaded latch lock that can be snapped on and locked. The spring-loaded latch lock is provided with a hook installed on the upper cover and a hook element installed on the lower housing. When the hook element is hooked onto the hook and reaches a preset position, the upper cover and the lower housing are in a tight and sealed state.

[0015] In some embodiments, the length of any side of the insulated chamber of the calibration device should not exceed 0.5m. Beneficial effects

[0016] This utility model discloses a temperature calibration device for an autoclave, which has the following advantages compared with the prior art: An autoclave temperature calibration device, with its compact design, is compatible with most autoclaves on the market, meeting the needs for temperature measurement when placed inside an autoclave. The device comprises a detachable, sealed upper cover and lower shell, with a main unit containing a circuit board and battery inside. From the outside in, the insulated box consists of a rigid outer shell, an insulation layer, a vacuum layer, and an inner liner. The rigid outer shell is scratch-resistant and stain-resistant; the insulation layer is fireproof and flame-retardant; the vacuum layer provides insulation; and the inner liner is bright, clean, stain-resistant, and easy to clean. A sealing strip at the opening allows for long-term continuous use in high-temperature environments, is aging-resistant, and provides excellent sealing. The upper cover and lower shell are detachably and sealed using a spring-loaded latch, making it convenient, durable, and explosion-proof.

[0017] The calibration device is equipped with several temperature probes, enabling simultaneous temperature measurement at multiple points on the autoclave using only one calibration device. It is also portable. The top of the metal casing of the main unit has a PEEK protrusion, which allows for wireless communication. The device connects to a computer via an interface, and the accompanying software automatically calculates and processes the measured data. This not only reduces errors from human calculation and improves data accuracy but also ensures high calibration efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below, constituting a part of this utility model. The illustrative embodiments of this utility model and their descriptions explain this utility model and do not constitute an improper limitation of this utility model; in the drawings: Figure 1 A schematic diagram of the structure of the wireless temperature calibration device provided in this embodiment of the utility model; Figure 2 Assembly diagram for a wireless temperature calibration device; Figure 3 This is a block diagram of the circuit board; Figure 4 This is a schematic diagram of the technical solution for placing the host unit on a dedicated interface to communicate with a computer.

[0019] In the picture: Insulated box 1; Top cover 11; Lower shell 12; Groove 121; Rigid outer shell layer 111; Insulation layer 112; Vacuum layer 113; Inner liner layer 114; Inner cavity 115; Sealing strip 116; Main unit 2; Main unit shell 21; Shell 211; Boss 212; Circuit board 22; Controller 221; Memory 222; Hall module 223; Wireless communication module 224; Battery compartment 23; Battery 231; Wire 3; Temperature probe 4; Probe shell 41; Temperature sensing element 42; Spring latch lock 5; Hook 51; Locking element 52; Hanging shaft 521; Torsion spring 522; Pressure plate 523; Limiting baffle 524; Base plate 525; Rotating shaft 526; Computer 6; Dedicated interface 7; Activator 71. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this utility model, it should be noted that the term "comprising" mentioned in the specification and claims is an open-ended term and should be interpreted as "including but not limited to"; "a number" refers to more than 3.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments; based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] like Figures 1-4 As shown, the technical solution disclosed in this utility model is as follows: A temperature calibration device for an autoclave, for placement within the inner cavity of the autoclave, includes an insulated box 1, a main unit 2 encapsulated within the inner cavity 115 of the insulated box 1, and a temperature probe 4 exposed within the insulated box 1; wherein, The heat insulation box 1 includes a detachable and sealed upper cover 11 and a lower shell 12 connected as one piece. The upper cover 11 and the lower shell 12 are provided with a rigid outer shell layer 111, a heat insulation layer 112, a vacuum layer 113 and an inner liner layer 114 from the outside to the inside. The main unit 2 includes a main housing 21, a circuit board 22 and a battery 231 installed in the inner cavity of the main housing 21. The main housing 21 is provided with a metal shell 211. The top of the metal shell 211 is provided with a PEEK material boss 212. The flexible wire 3 fixed on the circuit board 22 is connected to the temperature probe 4 through the boss 212, the heat insulation box 1 and the temperature probe 4.

[0024] like Figures 1-4 As shown, the preferred embodiment of this utility model is as follows: A temperature calibration device for an autoclave, for placement in the inner cavity of the autoclave, includes an insulated box 1, a main unit 2 encapsulated in the inner cavity 115 of the insulated box 1, and a temperature probe 4 exposed in the insulated box 1.

[0025] The insulation box 1 of the calibration device should have a side length not exceeding 0.5m and be a small-volume cylindrical shape. In this embodiment, it is designed as a small-volume cube to meet the requirements of being placed in the inner cavity of the autoclave for temperature measurement.

[0026] The insulated box 1 includes an upper cover 11 and a lower shell 12, which are detachably and sealed together by a spring-loaded latch 5, and have an inner cavity 115 inside. The upper cover 11 and the lower shell 12 are each provided with a rigid outer shell layer 111, a heat insulation layer 112, a vacuum layer 113, and an inner liner layer 114, from the outside to the inside. Figure 1 As shown.

[0027] The upper cover 11 and the lower housing 12 are connected at the center of the back connection surface by a stainless steel hinge (not shown in the figure), and a spring latch lock 5 is used at the center of the front to fix the buckle, which is explosion-proof, safe, sturdy and durable, and easy to open and close.

[0028] The spring-loaded latch 5 includes a hook 51 and a latching element 52, which are respectively fixed near the mating surfaces of the upper cover 11 and the lower housing 12. The latching element 52 includes a base plate 525 vertically fixed to the wall of the lower housing 12, a hanging shaft 521 rotatably mounted on the base plate 525 and engaging with the hook 51, a limiting baffle 524 vertically fixed to the base plate 525, a rotating shaft 526 fixed to the base plate 525, and a torsion spring 522 and a pressure plate 523 fitted onto the rotating shaft 526. The pressure plate 523 has a through hole. When the pressure plate 523 is manually pressed so that the through hole fits into the limiting baffle 524, the upper cover 11 and the lower housing 12 are in a compressed and sealed state. When the pressure plate 523 is manually lifted, the upper cover 11 can be opened, such as... Figure 2 As shown.

[0029] The joint surface between the upper cover 11 and the lower housing 12 is sealed by a sealing strip 116. The sealing strip 116 is made of phenyl silicone rubber, which can be used continuously for a long time in high temperature environment, is resistant to aging, and has good sealing performance. The sealing strip 116 is placed in the groove 121 provided in the hard outer shell layer 111 of the lower housing 12.

[0030] The hard outer shell layer 111 is made of stainless steel and should be no less than 4cm thick. In this embodiment, the thickness is 4cm. After being polished and treated with anti-rust, it is powder coated to make it scratch-resistant, pollution-resistant and easy to clean.

[0031] The insulation material of the insulation layer 116 is aluminum silicate rock wool, which has the functions of fireproofing and flame retardancy. The thickness should not be less than 5cm. In this embodiment, the thickness is selected as 5cm.

[0032] The inner liner 114 is made of stainless steel and is formed by argon arc welding. It has the functions of being bright and clean, hygienic and environmentally friendly, pollution-resistant and easy to clean. The thickness should not be less than 1.5mm, and the thickness selected in this embodiment is 1.5mm.

[0033] The temperature probe 4 includes a probe housing 41 and a temperature sensing element 42 located inside. The temperature sensing element 42 is a platinum resistance thermometer, and the housing is made of stainless steel, which can transfer heat quickly and evenly.

[0034] The wire 3 consists of an inner layer of nickel-plated wire and an outer layer of mica fiberglass braided material, making it a flexible wire. The part connected to the temperature probe 4 is armored and extends from the inner cavity of the insulation box 1. One end of the wire 3 is connected to the circuit board 22, and the other end is connected to the temperature probe 4. Several temperature probes 4 are provided as needed and can be freely arranged in the autoclave. The temperature probes 4 collect temperature data from different locations and transmit it back to the circuit board 22 via the wire 3. In this embodiment, the length of each wire 3 is set to 5m.

[0035] The main unit 2 includes a main unit housing 21, a circuit board 22 and a battery 231 installed in the inner cavity of the main unit housing 21. The battery 231 is installed in the battery compartment 23. The main unit housing 21 is provided with a metal shell 211. The top of the metal shell 211 is provided with a PEEK material boss 212, and the thickness H is set according to preset requirements. The flexible wire 3 fixed on the circuit board 22 is connected to the temperature probe 4 through the boss 212, the heat insulation box 1, and the temperature probe 4.

[0036] The circuit board 22 includes a controller 221 for controlling temperature acquisition, a memory 222 for storing data information, and a Hall module 223 that connects the calibration device to the computer 6 via a dedicated interface 7 and a wireless communication module 224. The battery compartment 23 is mounted on the circuit board 22 and contains a battery 231, which is a high-temperature resistant lithium battery that powers the circuit board 22.

[0037] The calibration device is placed on the dedicated interface 7. The Hall module 223 wirelessly connects the circuit board 22 to the computer 6 through the dedicated interface 7. The dedicated interface 7 is equipped with a platform for placing the device and contains an activator 71. The activator 71 activates the Hall module 223, that is, the dedicated interface 7 is software connected to the computer 6. Communication is established with the computer 6 through the wireless communication module 224. The computer 6 reads the temperature information stored in the memory 222.

[0038] The computer 6 controls the calibration device through circuitry, sets the sampling frequency, and controls the temperature probes 4 at different locations to collect data. After calibration, the software can read all the temperature data in the calibration device, automatically plot curves, and generate all the raw data, which can be exported as Excel raw data. The accompanying software automatically calculates and processes the measured data according to the calibration specifications, which not only reduces the error of human calculation and improves the accuracy of the data, but also has high calibration efficiency.

[0039] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A temperature calibration device for an autoclave, used for placement within the inner cavity of the autoclave, characterized in that: It includes an insulated box, a main unit encapsulated within the cavity of the insulated box, and a temperature probe exposed outside the insulated box; wherein, The insulated box includes a detachable and sealed upper cover and a lower shell that are connected as one piece. The upper cover and the lower shell are provided with a rigid outer shell layer, a heat insulation layer, a vacuum layer and an inner liner layer from the outside to the inside. The main unit includes a main unit housing, a circuit board and a battery installed in the inner cavity of the main unit housing. The main unit housing has a metal shell, and the top of the metal shell has a PEEK material boss. The flexible wires fixed on the circuit board are connected to the temperature probe through the boss and the heat insulation box.

2. The autoclave temperature calibration device according to claim 1, characterized in that: A sealing strip made of phenyl silicone rubber is provided at the joint surface of the upper cover and the lower shell, and the sealing strip is placed in a groove provided in the hard outer shell layer of the lower shell.

3. The autoclave temperature calibration device according to claim 1, characterized in that: The thickness of the stainless steel hard outer shell layer should be no less than 4cm, and the outer layer should have a powder coating layer.

4. The autoclave temperature calibration device according to claim 1, characterized in that: The thickness of the insulation layer of the aluminum silicate rock wool insulation material should not be less than 5cm.

5. The autoclave temperature calibration device according to claim 1, characterized in that: The thickness of the stainless steel inner liner layer, which is argon arc welded, should be no less than 1.5 mm.

6. The autoclave temperature calibration device according to claim 1, characterized in that: The temperature probe includes a stainless steel probe housing and an internal temperature sensing element, which is a platinum resistance thermometer. Several temperature probes are provided as needed, and each is connected to the circuit board via a wire.

7. The autoclave temperature calibration device according to claim 6, characterized in that: The wire comprises an inner layer of nickel-plated wire and an outer layer of mica fiberglass braided material, and the part connected to the temperature probe is armored and extends out from the inner cavity of the insulation box.

8. The autoclave temperature calibration device according to claim 1, characterized in that: The circuit board includes a controller, a memory, a Hall element, a wireless communication module, and a battery compartment. The circuit board is connected to a computer via a wireless communication module.

9. The autoclave temperature calibration device according to claim 2, characterized in that: The back of the joint surface between the upper cover and the lower housing is provided with a hinge that can be movably fixed, and the front is provided with a spring-loaded latch that can be locked. The spring-loaded latch is provided with a hook installed on the upper cover and a hook element installed on the lower housing. When the hook element is hooked onto the hook and reaches a preset position, the upper cover and the lower housing are in a tight and sealed state.

10. The autoclave temperature calibration device according to any one of claims 1-9, characterized in that: The length of any side of the insulated chamber of the calibration device should not exceed 0.5m.

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