CN215984999U - Vacuum pumping system based on high-temperature and high-pressure environment - Google Patents
Vacuum pumping system based on high-temperature and high-pressure environment Download PDFInfo
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- CN215984999U CN215984999U CN202122398223.6U CN202122398223U CN215984999U CN 215984999 U CN215984999 U CN 215984999U CN 202122398223 U CN202122398223 U CN 202122398223U CN 215984999 U CN215984999 U CN 215984999U
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Abstract
The utility model discloses a vacuum pumping system based on a high-temperature and high-pressure environment, which comprises a pumping and testing integrated joint, wherein the pumping and testing integrated joint is a Y-shaped three-way joint, the lower interface of the three-way joint is hermetically connected with a vacuum bag through a connecting structure, two interfaces on the upper part of the three-way joint are respectively connected with a vacuum pumping pipe and a vacuum measuring pipe through joints, and the vacuum pumping pipe and the vacuum measuring pipe are respectively connected with the vacuum pumping system and the vacuum measuring system. The utility model has good state, reliable performance and accurate vacuum measurement data under high temperature and high pressure; the vacuum-pumping vacuum-measuring system is convenient to use and replace in application, the KF standard component is low in price, and the service life of the KF standard component is longer than that of the original vacuum-pumping vacuum-measuring system.
Description
Technical Field
The utility model relates to a vacuum-pumping system based on a high-temperature and high-pressure environment.
Background
The non-metal composite material is pressed and formed in the autoclave, a compact vacuum pumping bag is required to be wrapped on the outer surface of the forming material, then the non-metal composite material is placed in the autoclave to reach a high-temperature high-pressure environment, gas molecules generated in the composite material forming process in the vacuum bag and volatile molecules of the composite material in the high-temperature environment are pumped and removed, the vacuum pumping and measuring are integrated, a certain vacuum degree is strictly controlled, and the defects of deformation, air holes, glue accumulation and the like of a composite material product are avoided. At present, the device that uses in this technique is two metal collapsible tube, and one is for the evacuation, and one is for measuring, and two metal collapsible tube need be lapped to the vacuum bag both sides simultaneously, and the shortcoming of this device is: the measurement defects are high, the replacement cost is high, the metal tube is hard and cannot meet the requirement of a large amount of charging space, and the metal hose damages the vacuum bag, so the following requirements are provided for the vacuumizing process:
1) the vacuum-pumping pipe and the fittings are resistant to high temperature and high pressure;
2) the vacuumizing tube is not deformed and flattened under the external pressure of 4mPa and the internal pressure of-99 kPa;
3) the vacuumizing and the vacuum measurement are integrated, the use is convenient, and the measurement is accurate;
4) the vacuum pumping and measuring device is reliably connected on the vacuum bag film;
5) low price, convenient replacement and high reliability.
At present, a case and a reference scheme which are not well implemented in the processes of vacuumizing, vacuumizing and measuring in a high-pressure container are not provided, and the design of a device which can adapt to a high-temperature and high-pressure environment, integrates vacuumizing and measuring and is accurate in measurement is a key problem to be solved for realizing the molding of a composite material product.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the vacuum-pumping system based on the high-temperature and high-pressure environment, which has a simple structure and is accurate in measurement.
The technical scheme for solving the technical problems is as follows: the utility model provides a vacuum pumping system based on under high temperature high pressure environment, includes takes out and surveys integrative joint, take out and survey integrative joint and be the three way connection of Y shape, three way connection's lower part interface passes through connection structure sealing connection vacuum bag, and two interfaces in three way connection's upper portion connect respectively evacuation pipe, survey the vacuum pipe through the joint, and evacuation pipe, survey the vacuum pipe and connect respectively evacuation system, survey the vacuum system.
The aforesaid is based on evacuation system under the high temperature high pressure environment, connection structure includes base, gland, KF25 joint, adapter, base and vacuum bag fixed connection, the gland is placed on the base, and the welding of KF25 joint lower extreme is in the middle of the gland upper surface, and KF25 connects the upper end and is connected with adapter one end, and three way connection's lower part interface is connected to the adapter other end, and KF25 connects and is equipped with the cavity screw in the joint, and the cavity screw passes gland, base and vacuum bag intercommunication in proper order.
Above-mentioned vacuum pumping system based on under the high temperature high pressure environment, KF25 connects and uses the clamp fastening in the adapter junction outside, and KF25 connects and is equipped with the center circle that is used for sealing with the adapter junction inboard.
Above-mentioned vacuum pumping system based on under high temperature and high pressure environment, evacuation pipe is the same with surveying the vacuum tube structure, and the outside of evacuation pipe adopts high temperature resistant silicone tube, and the inside spring that is used for resisting the external pressure that is applied to the silicone tube in the autoclave that is equipped with of silicone tube.
Above-mentioned vacuum pumping system based on under the high temperature high pressure environment, base upper surface, gland lower surface all are equipped with the sealing washer.
The utility model has the beneficial effects that:
1. the utility model has good state, reliable performance and accurate vacuum measurement data under high temperature and high pressure; the vacuum-pumping vacuum-measuring system is convenient to use and replace in application, the KF standard component is low in price, and the service life of the KF standard component is longer than that of the original vacuum-pumping vacuum-measuring system.
2. The utility model improves the traditional vacuum pumping and measuring mode of the autoclave in high-temperature and high-pressure environment, adopts a novel vacuum pumping system which combines vacuum pumping and vacuum measuring together, and solves the problems of high temperature of 200 ℃, high pressure of 4MPa, vacuum pumping and vacuum keeping of-99 KPa through the vacuum pumping and measuring integrated system.
3. The utility model solves the problem of manufacturing the vacuum-pumping device on the flexible film vacuum bag through the hollow screw gland type seal.
4. The utility model improves the problems that the original metal hose has high cost, is easy to damage, is inconvenient to replace, has damage threat to a vacuum bag and the like, for example, the service life of the original metal hose is more than ten times, and is improved to more than eighty times.
5. The utility model adopts the KF joint standard component in the vacuum-pumping system, so that the KF joint standard component has more modularized, standardized and low-cost application.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the evacuation tube of fig. 1.
Fig. 3 is a schematic structural view of the connection structure in fig. 1.
Detailed Description
The utility model is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1, a vacuum pumping system based on a high-temperature and high-pressure environment comprises a pumping and measuring integrated joint, wherein the pumping and measuring integrated joint is a Y-shaped three-way joint 1, a lower interface of the three-way joint 1 is hermetically connected with a vacuum bag through a connecting structure 2, two interfaces at the upper part of the three-way joint 1 are respectively connected with a vacuum pumping pipe 4 and a vacuum measuring pipe 5 through a joint 3, and the vacuum pumping pipe 4 and the vacuum measuring pipe 5 are respectively connected with the vacuum pumping system and the vacuum measuring system; the three-way joint 1 integrates the vacuum pumping and the vacuum measurement, and the principle of utilization is that the pressure of the gas in the container is equal everywhere.
As shown in fig. 2, the evacuation tube 4 and the vacuum measurement tube 5 have the same structure, a high temperature resistant silicone tube 6 is adopted outside the evacuation tube 4, and a spring 7 for resisting external pressure applied to the silicone tube 6 in the autoclave is arranged inside the silicone tube 6. The pipeline is used for pumping negative pressure through the original vacuum pumping system of the tank body. The silicone tube 6 itself is harmless and soft to the vacuum bag outside the product, and is convenient to operate.
As shown in fig. 3, connection structure 2 includes base 8, gland 9, KF25 joint 10, adapter 11, hollow screw 12, base 8 and vacuum bag fixed connection, gland 9 are placed on base 8, and the welding of KF25 joint 10 lower extreme is in the middle of gland 9 upper surface, and KF25 joint 10 upper end is connected with 11 one end of adapter, and three way connection 1's lower part interface is connected to the 11 other end of adapter, is equipped with hollow screw 12 in the KF25 joint 10, and hollow screw 12 passes gland 9, base 8 and vacuum bag intercommunication in proper order. KF25 connects 10 and 11 junctions of adapter outside and fastens with clamp 13, KF25 connects 10 and 11 junctions of adapter inboard and is equipped with the center circle 14 that is used for sealed. And sealing rings 15 are arranged on the upper surface of the base 8 and the lower surface of the gland 9.
Claims (5)
1. The utility model provides an evacuation system based on under high temperature high pressure environment which characterized in that: the vacuum pumping and measuring integrated connector comprises a pumping and measuring integrated connector body, the pumping and measuring integrated connector body is a Y-shaped three-way connector, a lower connector of the three-way connector body is hermetically connected with a vacuum bag through a connecting structure, two connectors on the upper portion of the three-way connector body are respectively connected with a vacuum pumping pipe and a vacuum measuring pipe through connectors, and the vacuum pumping pipe and the vacuum measuring pipe are respectively connected with a vacuum pumping system and a vacuum measuring system.
2. The vacuum pumping system based on high temperature and high pressure environment according to claim 1, wherein: connection structure includes that base, gland, KF25 connect, adapter, base and vacuum bag fixed connection, gland are placed on the base, and KF25 connects the lower extreme welding in the middle of the gland upper surface, and KF25 connects the upper end to be connected with adapter one end, and three way connection's lower part interface is connected to the adapter other end, and KF25 connects and is equipped with the cavity screw, and the cavity screw passes gland, base and vacuum bag intercommunication in proper order.
3. The vacuum pumping system based on high temperature and high pressure environment according to claim 2, wherein: KF25 connects and the clamp fastening is used in the adapter junction outside, and KF25 connects and is equipped with the center circle that is used for sealing with the adapter junction inboard.
4. The vacuum pumping system based on high temperature and high pressure environment according to claim 1, wherein: the vacuum-pumping pipe and the vacuum-measuring pipe have the same structure, the outside of the vacuum-pumping pipe adopts a high-temperature-resistant silicone tube, and a spring for resisting external pressure applied to the silicone tube in the autoclave is arranged in the silicone tube.
5. The vacuum pumping system based on high temperature and high pressure environment according to claim 2, wherein: and the upper surface of the base and the lower surface of the gland are both provided with sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122398223.6U CN215984999U (en) | 2021-09-30 | 2021-09-30 | Vacuum pumping system based on high-temperature and high-pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122398223.6U CN215984999U (en) | 2021-09-30 | 2021-09-30 | Vacuum pumping system based on high-temperature and high-pressure environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215984999U true CN215984999U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122398223.6U Active CN215984999U (en) | 2021-09-30 | 2021-09-30 | Vacuum pumping system based on high-temperature and high-pressure environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215984999U (en) |
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2021
- 2021-09-30 CN CN202122398223.6U patent/CN215984999U/en active Active
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