Gas storage and test integrated test cavity
By integrating a temperature control chamber and a gas storage chamber within the testing chamber, and combining temperature control devices and pressure control devices, the problems of inconsistent temperatures between the gas storage tank and the testing chamber, as well as inaccurate pressure control, have been solved, thus achieving accuracy and stability in material performance testing.
Patent Information
- Application Number
- CN202520284189.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing material performance testing equipment, the temperature inconsistency between the gas storage tank and the test chamber, as well as the inaccurate pressure control, affect the accuracy and stability of the test results.
Design a test chamber that integrates gas storage and testing, combining a temperature control chamber and a gas storage chamber within the test chamber body. Temperature uniformity and precise pressure control are achieved through temperature control devices and pressure control devices. Temperature control is achieved using a heating rod or semiconductor heater, and airtightness is ensured using a sealing ring.
It improves the accuracy and reliability of test results, ensures gas temperature uniformity and pressure stability, and is suitable for gas permeability testing of various materials.
Smart Images
Figure CN223827512U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to material performance testing equipment technical field, specifically a kind of gas storage test integrated test cavity applied to sample gas permeability test. BACKGROUND
[0002] In the field of material performance testing, gas permeability test is an important method to evaluate the gas penetration performance of materials. In the relevant standards, the test cavity is divided into upper and lower cavities. The upper and lower cavities are separated by the sample and form two independent test cavities. A gas storage container should be installed in the test upper cavity pipeline to ensure the stability of the test gas. In existing products, the gas storage and test structure is usually designed as a split structure. This design has the disadvantage that the temperature of the test gas in the gas storage tank and the test cavity is not consistent, which affects the accuracy of the test results. In addition, the split structure requires the use of a pipeline to connect the test cavity and the gas storage tank. Due to the length and diameter of the pipeline, there are deficiencies in pressure control, making it difficult to ensure the stability of the test data. SUMMARY
[0003] To overcome the shortcomings of the prior art, the utility model provides a gas storage and test integrated test cavity to solve the problem of inconsistent temperature of test gas in the gas storage tank and the test cavity and inaccurate pressure control.
[0004] To solve the technical problem, the utility model adopts the following technical scheme: a gas storage and test integrated test cavity, including a test cavity body and a temperature control cavity and a gas storage cavity located in the test cavity body respectively, the gas storage cavity is located in the test cavity body, a gas storage cavity inlet and a gas storage cavity outlet for filling and discharging test gas are provided on the gas storage cavity, the temperature control cavity is wrapped outside the gas storage cavity, and a temperature control device and a temperature sensor are provided in the temperature control cavity.
[0005] Further, the temperature control cavity includes an inlet, an outlet, and a circulating medium. The inlet and the outlet are provided on the temperature control cavity, and the circulating medium circulates in the temperature control cavity through the inlet and the outlet.
[0006] Further, the temperature control device is a heating rod or a semiconductor heater for heating the gas in the temperature control cavity.
[0007] Further, the gas storage cavity inlet is connected to a test gas inlet pipeline, and a pressure sensor and an inlet electromagnetic valve are provided on the test gas inlet pipeline. The gas storage cavity outlet is connected to a test gas exhaust pipeline, and an exhaust electromagnetic valve is provided on the test gas exhaust pipeline.
[0008] Further, a sealing ring is provided on the test cavity body.
[0009] Further, the test cavity body is provided in a test upper cavity, and the sample is located between the test upper cavity and a test lower cavity.
[0010] The utility model discloses a beneficial effect: the utility model discloses the gas storage cavity is integrated in the test cavity body, forms a whole test unit, solved the test gas in the gas storage and test structure split setting of existing product causes the temperature inconsistency of the drawback in the gas tank and test cavity, improved the accuracy of test result. Through setting temperature control device and pressure control device, can ensure the uniformity and stability of gas temperature in test cavity and the accurate control of pressure, further improved the accuracy and reliability of test. The utility model discloses compact structure, easy operation is applicable to the gas permeability of various materials and has wide application prospect. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the structural schematic diagram of the utility model;
[0012] In the drawing: 1, test cavity body, 2, gas storage cavity, 3, temperature control chamber, 4, sealing ring, 5, temperature sensor, 6, gas storage cavity air inlet, 7, gas storage cavity outlet, 8, to be tested sample, 9, liquid inlet, 10, liquid outlet. DETAILED DESCRIPTION
[0013] The utility model will be further explained in connection with the drawings and specific implementation.
[0014] Example 1
[0015] This embodiment discloses a kind of test cavities of gas storage test integration, as shown in Figure, including test cavity body 1 and respectively in test cavity body 1 Temperature control chamber 3 and gas storage cavity 2, gas storage cavity 2 is located in test cavity body 1, forms a whole test unit.Gas storage cavity 2 is equipped with gas storage cavity air inlet 6 and gas storage cavity outlet 7, test gas enters from gas storage cavity air inlet 6, forms the pressure required in gas storage cavity in test, to be tested sample is located below gas storage cavity 2, detects the test gas permeation amount of test sample, to complete sample gas permeability test. Figure 1 To ensure the uniformity and stability of gas temperature in gas storage cavity, temperature control chamber 3 is a closed hollow cavity, cladding in gas storage cavity 2 outer side, temperature sensor 5 is arranged in temperature control chamber 3.In this embodiment, the temperature control device includes liquid inlet 9, liquid outlet 10 and circulating medium, liquid inlet 9, liquid outlet 10 are arranged on temperature control chamber 3, and circulating medium circulates in temperature control chamber 3 by liquid inlet 9, liquid outlet 10, to realize the temperature control of test cavity body 1.In this embodiment, the circulating medium is water.Temperature sensor 5 is located at the bottom of temperature control chamber 3, for real-time monitoring the temperature in test cavity body 1, to realize the accurate control of temperature.
[0016]
[0017] In the embodiment, the gas storage cavity gas inlet 6 is connected with the test gas inlet pipeline, the test gas inlet pipeline is provided with a pressure sensor and an inlet electromagnetic valve, the gas storage cavity gas outlet 7 is connected with the test gas exhaust pipeline, and the test gas exhaust pipeline is provided with an exhaust electromagnetic valve. The test gas pressure in the test cavity is detected through the pressure sensor, and the opening and closing of the inlet and exhaust electromagnetic valves are used for accurately adjusting and maintaining the gas pressure in the test cavity.
[0018] In the embodiment, the gas storage cavity body 1 is provided with a sealing ring, the sealing ring is made of elastic sealing material, such as rubber or silica gel, so as to ensure the close connection between the test sample 8 and the test cavity body 1 and the gas leakage (the gas can only pass through the test sample).
[0019] In the embodiment, the test sample body is arranged in the test upper cavity, and the test sample is located between the test upper cavity and the test lower cavity.
[0020] Embodiment 2
[0021] In the embodiment, the temperature control device is a heating rod or a semiconductor heater used for heating the gas in the temperature control cavity. The temperature sensor is located at the bottom of the temperature control cavity, and is used for monitoring the temperature in the test cavity in real time, so as to realize the accurate control of the temperature.
[0022] The above description is only the basic principle and the preferred embodiment of the utility model, and the improvement and replacement of the utility model made by the person skilled in the art belong to the protection range of the utility model.
Claims
1. A test chamber integrating gas storage and testing, characterized in that: It includes a test chamber body and a temperature control chamber and a gas storage chamber located within the test chamber body. The gas storage chamber is located within the test chamber body and has a gas inlet and a gas outlet for filling and discharging test gas. The temperature control chamber covers the outside of the gas storage chamber and has a temperature control device and a temperature sensor inside.
2. The integrated gas storage and testing chamber according to claim 1, characterized in that: The temperature control chamber includes an inlet, an outlet, and a circulating medium. The inlet and outlet are located on the temperature control chamber, and the circulating medium circulates within the temperature control chamber through the inlet and outlet.
3. The integrated gas storage and testing chamber according to claim 1, characterized in that: The temperature control device is a heating rod or a semiconductor heater used to heat the gas inside the temperature control cavity.
4. The integrated gas storage and testing chamber according to claim 1, characterized in that: The gas storage chamber inlet is connected to the test gas inlet pipeline, which is equipped with a pressure sensor and an inlet solenoid valve. The gas storage chamber outlet is connected to the test gas exhaust pipeline, which is equipped with an exhaust solenoid valve.
5. The integrated gas storage and testing chamber according to claim 1, characterized in that: The test chamber body is equipped with a sealing ring.
6. The integrated gas storage and testing chamber according to claim 1, characterized in that: The test chamber body is located in the upper test chamber, and the sample is located between the upper test chamber and the lower test chamber.