Gas-liquid pressure flow comprehensive detection device

Abstract

The utility model relates to the field of detection device especially is concerned on a gas liquid pressure flow comprehensive detection device, it includes gas source and liquid storage tank, and the gas source is communicated with the liquid storage tank through the pipeline, and the liquid storage tank is connected with the output pipe, and the liquid storage tank is connected with the first drain valve, and the drain valve is at the bottom end of the liquid storage tank. The output pipe includes connecting section, first branch section, second branch section and output section, and one end of connecting section is in the liquid storage tank, and extends to the bottom end of the liquid storage tank, and the other end is communicated with first branch section and second branch section, and the output section is at the one end of first branch section away from connecting section, and the output section is communicated with first branch section and second branch section, and first branch section is equipped with first switch valve, and second branch section is equipped with second switch valve. The utility model can complete different detection to multiple different medical instruments on the same device, and effectively reduces the cost of medical instrument detection.

Description

Technical Field

[0001] This utility model relates to the field of detection devices, and in particular to a comprehensive detection device for gas and liquid pressure and flow. Background Technology

[0002] Due to the diversity of medical devices, the equipment used for performance testing of different medical devices is also diverse. This means that different testing items require different testing equipment; for example, gas pressure testing and liquid pressure testing require their own separate testing equipment. Furthermore, testing a large number of medical devices necessitates preparing a large number of different testing devices, significantly increasing testing costs. Utility Model Content

[0003] In order to enable different tests on medical devices using the same device, this utility model provides a comprehensive gas-liquid pressure and flow detection device.

[0004] This utility model provides a comprehensive gas-liquid pressure and flow rate detection device, which adopts the following technical solution: A gas-liquid pressure and flow integrated detection device includes a gas source and a liquid storage tank. The gas source is connected to the liquid storage tank through a pipeline. An output pipe is connected to the liquid storage tank. A first drain valve is connected to the liquid storage tank at the bottom end of the liquid storage tank.

[0005] In one specific implementation, the output pipe includes a connecting section, a first branch section, a second branch section, and an output section. One end of the connecting section is inside the liquid storage tank and extends towards the bottom of the liquid storage tank, while the other end is connected to both the first branch section and the second branch section. The output section is located at the end of the first branch section away from the connecting section, and the output section is connected to both the first branch section and the second branch section. The first branch section is equipped with a first switching valve, and the second branch section is equipped with a second switching valve.

[0006] In one specific implementation scheme, the first branch segment is provided with a gas throttle valve and a first detection gauge, and the first switching valve, the gas throttle valve and the first detection gauge are arranged along the extension direction of the first branch segment.

[0007] In one specific implementation scheme, the second branch segment is provided with a liquid throttle valve and a second detection gauge, and the second switching valve, the liquid throttle valve and the second detection gauge are arranged along the extension direction of the second branch segment.

[0008] In one specific implementation, a solenoid valve is connected to the output section.

[0009] In one specific implementation scheme, both the first and second measuring instruments are pressure gauges or flow meters.

[0010] In one specific implementation, the end of the output pipe away from the storage tank is connected to a test tank.

[0011] In one specific implementation, the bottom of the test tank is connected to a second drain valve.

[0012] In one specific implementation, the test container is a transparent acrylic sealed container with a sealing cap.

[0013] In one specific implementation, the liquid storage tank is a transparent acrylic sealed tank with a sealing cap.

[0014] In summary, this utility model has the following beneficial effects: 1. Connect the medical device to be tested to the output tube. The gas source introduces gas into the liquid storage tank to increase the gas pressure in the tank. When the liquid storage tank contains liquid, it can be used for hydraulic-related tests. When the liquid in the tank is emptied, it can be used for gas pressure-related tests, which effectively reduces the testing cost.

[0015] 2. The medical device is placed inside the test container for testing. The test container prevents fragments from flying out when the medical device bursts under pressure, thus improving the safety of the test.

[0016] 3. The solenoid valve enables automatic control of the test, thus enabling fatigue life testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure.

[0018] Explanation of reference numerals in the attached diagram: 1. Gas source; 2. Liquid storage tank; 3. First drain valve; 4. Connecting section; 5. First branch section; 6. Second branch section; 7. First switching valve; 8. Gas throttle valve; 9. First gauge; 10. Second switching valve; 11. Liquid throttle valve; 12. Second gauge; 13. Output section; 14. Solenoid valve; 15. Test tank; 16. Second drain valve. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 The present invention will be described in further detail below.

[0020] Reference Figure 1 The integrated gas-liquid pressure and flow detection device includes a gas source 1 and a liquid storage tank 2. The liquid storage tank 2 is specifically a high-strength transparent acrylic sealed tank with a sealing cap. A first drain valve 3 is connected to the liquid storage tank 2. The first drain valve 3 is located at the bottom of the liquid storage tank 2 and can drain the liquid in the liquid storage tank 2.

[0021] Reference Figure 1 Gas source 1 is connected to the top of liquid storage tank 2 through a pipe, which can input gas into liquid storage tank 2. Liquid storage tank 2 is connected to an output pipe that extends to the bottom of liquid storage tank 2 and is used to draw liquid or gas from liquid storage tank 2. That is, when the gas input into liquid storage tank 2 through gas source 1 is stored in liquid storage tank 2, it will not be drawn out by the output pipe.

[0022] Understandably, when liquid is stored in reservoir 2, gas source 1 introduces gas into reservoir 2. The gas pressure causes the liquid in reservoir 2 to flow into the output pipe, which is connected to the medical device under test for water pressure-related testing. Alternatively, reservoir 2 may not contain liquid. Since reservoir 2 is sealed, the gas input from gas source 1 enters the output pipe through reservoir 2 and then flows to the medical device under test connected to the output pipe for gas pressure-related testing.

[0023] Reference Figure 1 The output tube includes a connecting section 4, a first branch section 5, a second branch section 6, and an output section 13. One end of the connecting section 4 extends into the liquid storage tank 2, and the other end is connected to both the first branch section 5 and the second branch section 6. The first branch section 5 and the second branch section 6 are arranged vertically, with the first branch section 5 above the second branch section 6. The output section 13 is located at the end of the first branch section 5 furthest from the connecting section 4. The output section 13 is connected to both the first branch section 5 and the second branch section 6 and is used to connect to the medical device to be tested.

[0024] Reference Figure 1 The first branch section 5 is connected in sequence along the pipeline direction to a first switching valve 7, a gas throttle valve 8, and a first gauge 9. The second branch section 6 is connected in sequence along the pipeline direction to a second switching valve 10, a liquid throttle valve 11, and a second gauge 12. The first gauge 9 is detachably connected to the first branch section 5, and the second gauge 12 is detachably connected to the second branch section 6. The first gauge 9 and the second gauge 12 can be pressure gauges or flow meters. The detachable connection allows for adjustment of the type and range according to actual needs.

[0025] The vertical arrangement of the first branch segment 5 and the second branch segment 6 allows lighter gas to pass through the first branch segment 5 for pneumatic pressure-related testing of the medical device under test, while heavier liquid passes through the second branch segment 6 for hydraulic pressure-related testing. Since hydraulic pressure-related testing still uses gas supplied by gas source 1, the vertical arrangement of the first branch segment 5 and the second branch segment 6 avoids the process of lifting the liquid using air pressure, reducing the requirements for gas source 1. It is understandable that the first branch segment 5 and the second branch segment 6 could also be arranged horizontally, front to back.

[0026] Reference Figure 1 The output section 13 is connected to a solenoid valve 14, which can be automatically controlled by programming and can be used for fatigue life testing of medical devices under test.

[0027] Reference Figure 1 The output section 13 is connected to a test container 15, which is a high-strength transparent acrylic sealed container with a sealing cap. The medical device to be tested can be placed inside the test container 15. If the medical device bursts under air or water pressure, the test container 15 can block the fragments generated by the burst, protecting the test personnel. Water can also be introduced into the test container 15, causing the medical device to sink. If air bubbles are found escaping around the medical device during the airtightness test, it indicates that the medical device may have an airtightness problem.

[0028] Reference Figure 1 The bottom of the test tank 15 is connected to a second drain valve 16, which is used to drain the water in the test tank 15.

[0029] During negative pressure tests, gas source 1 draws gas from storage tank 2, creating negative pressure in the output tube. If the medical device is damaged under negative pressure, some fragments may fly towards gas source 1. The storage tank 2 is designed so that after the fragments enter the storage tank 2, they fall to the bottom of the storage tank 2 under the action of gravity. Only the gas is drawn in by gas source 1, preventing the gas source 1 from being damaged by fragments during the gas drawing process.

[0030] It is understandable that the first switching valve 7, the second switching valve 10, the gas throttle valve 8, the liquid throttle valve 11, the first drain valve 3, and the second drain valve 16 can all be automatically controlled by sending electrical signals to them. The methods of automatic control are all existing technologies and will not be described in detail.

[0031] The implementation principle of this utility model embodiment is as follows: When performing gas pressure related tests, the first switch valve 7 is opened and the second switch valve 10 is closed. The gas throttle valve 8 is adjusted and the first test gauge 9 is replaced as needed. After the first drain valve 3 empties the liquid in the storage tank 2, the gas source 1 outputs gas. The gas enters the first branch section 5 through the connecting section 4, and then enters the medical device to be tested in the test tank 15 through the output section 13 for testing.

[0032] During hydraulic-related tests, the first switch valve 7 is closed and the second switch valve 10 is opened. The liquid throttle valve 11 is adjusted and the second test gauge 12 is replaced as needed. Sufficient liquid is stored in the storage tank 2. Gas source 1 supplies gas to the storage tank 2, causing the liquid to enter the second branch section 6 under gas pressure. From there, the liquid flows through the output section 13 into the medical device under test within the test tank 15 for testing.

[0033] When conducting fatigue life tests, the first switching valve 7, the second switching valve 10, the gas throttle valve 8, the liquid throttle valve 11, the first test gauge 9, and the second test gauge 12 are adjusted as needed. The solenoid valve 14 is automatically controlled through pre-programming to automatically conduct the test.

[0034] The airtightness test is the same as the pressure test, except that a sufficient amount of water is introduced into the test tank 15 so that the medical device to be tested is submerged in the water.

[0035] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A comprehensive gas-liquid pressure and flow rate detection device, characterized in that: It includes a gas source (1) and a liquid storage tank (2). The gas source (1) is connected to the liquid storage tank (2) through a pipeline. The liquid storage tank (2) is connected to an output pipe. The liquid storage tank (2) is connected to a first drain valve (3). The drain valve is located at the bottom of the liquid storage tank (2). The output pipe includes a connecting section (4), a first branch section (5), a second branch section (6), and an output section (13). One end of the connecting section (4) is inside the liquid storage tank (2) and extends to the bottom of the liquid storage tank (2). The other end is connected to both the first branch section (5) and the second branch section (6). The output section (13) is located at the end of the first branch section (5) away from the connecting section (4). The output section (13) is connected to both the first branch section (5) and the second branch section (6). The first branch segment (5) is provided with a first switching valve (7), and the second branch segment (6) is provided with a second switching valve (10); A solenoid valve (14) is connected to the output section (13); The end of the output pipe away from the liquid storage tank (2) is connected to the test tank (15).

2. The gas-liquid pressure and flow rate integrated detection device according to claim 1, characterized in that: The first branch segment (5) is provided with a gas throttle valve (8) and a first detection gauge (9), and the first switching valve (7), the gas throttle valve (8) and the first detection gauge (9) are arranged along the extension direction of the first branch segment (5).

3. The gas-liquid pressure and flow rate integrated detection device according to claim 2, characterized in that: The second branch segment (6) is provided with a liquid throttle valve (11) and a second gauge (12), and the second switch valve (10), the liquid throttle valve (11) and the second gauge (12) are arranged along the extension direction of the second branch segment (6).

4. The gas-liquid pressure and flow rate integrated detection device according to claim 3, characterized in that: Both the first test gauge (9) and the second test gauge (12) are pressure gauges or flow meters.

5. The gas-liquid pressure and flow rate integrated detection device according to claim 1, characterized in that: The bottom of the test tank (15) is connected to a second drain valve (16).

6. The gas-liquid pressure and flow rate integrated detection device according to claim 1, characterized in that: The test container (15) is a transparent acrylic sealed container with a sealing cap.

7. The gas-liquid pressure and flow rate integrated detection device according to claim 1, characterized in that: The liquid storage tank (2) is a transparent acrylic sealed tank with a sealing cap.

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