CN216483896U

CN216483896U - Portable oxygen mask oxygen supply performance detector

Info

Publication number: CN216483896U
Application number: CN202123048337.4U
Authority: CN
Inventors: 吴东; 张国良; 王增荣; 艾泽
Original assignee: Dong Rong Precision Instrument Co ltd
Current assignee: Dong Rong Precision Instrument Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-10
Anticipated expiration: 2031-12-07

Abstract

The application relates to a portable oxygen mask oxygen supply performance detector, which comprises a box body, wherein a first electronic pressure regulating valve and a vacuum pump are arranged in the box body; the first electronic pressure regulating valve is connected with the first mass flowmeter and the second electronic pressure regulating valve in two ways; the first mass flowmeter is sequentially connected with the second pressure sensor and the mask resistance interface; the second electronic pressure regulating valve is sequentially connected with a second mass flowmeter and a third pressure sensor, and the third pressure sensor is divided into two paths and sequentially connected with a first residual pressure pipe interface and a first leakage quantity testing interface; the vacuum pump is connected in series with the pressure stabilizing container, the third electronic pressure regulating valve, the third mass flowmeter and the second leakage testing interface in sequence. The application provides a portable oxygen mask oxygen supply performance detector, which adopts a portable design, and the detector can be suitable for an external field by arranging an airflow structure in a box body; in addition, this application can detect a plurality of oxygen suppliment performances of oxygen mask, and the function is comparatively complete.

Description

Portable oxygen mask oxygen supply performance detector

Technical Field

The application relates to the technical field of detection devices, in particular to a portable oxygen mask oxygen supply performance detector.

Background

In order to detect changes in oxygen mask performance and early wear of internal components as early as possible, some measure of detection is typically taken to eliminate the failure and ensure that the oxygen mask is in a good and ready-to-use condition. Oxygen masks must be checked periodically to ensure that the oxygen mask is not problematic to use.

Before the oxygen mask is delivered for use, the performance of the oxygen mask is tested in a laboratory by a manufacturer, the large-scale equipment is inconvenient to operate, use and transport, and the requirement of a field for periodically detecting the oxygen mask cannot be met, so that the oxygen supply performance test equipment of the portable oxygen mask suitable for the field is needed.

Disclosure of Invention

The embodiment of the application provides a portable oxygen mask oxygen suppliment performance detector patent to it does not have a portable oxygen mask that is fit for the outfield and uses to supply performance check out test set to solve among the correlation technique.

The first aspect provides a portable oxygen mask oxygen supply performance detector, which comprises a box body, wherein a first electronic pressure regulating valve and a vacuum pump are arranged in the box body; the first electronic pressure regulating valve is connected with the first mass flowmeter and the second electronic pressure regulating valve in two ways; the first mass flowmeter is sequentially connected with the second pressure sensor and the mask resistance interface; the second electronic pressure regulating valve is sequentially connected with a second mass flowmeter and a third pressure sensor, and the third pressure sensor is divided into two paths and sequentially connected with a first residual pressure pipe interface and a first leakage quantity testing interface; and the vacuum pump is sequentially connected in series with the pressure stabilizing container, the third electronic pressure regulating valve, the third mass flowmeter and the second leakage testing interface.

In some embodiments, the portable oxygen mask oxygen supply performance detector further includes an air source input socket, and the air source input socket is sequentially connected in series with the air storage tank, the first pressure sensor, and the first electronic pressure regulating valve.

In some embodiments, a first solenoid valve is disposed between the first electronic pressure regulating valve and the first mass flow meter, and a second solenoid valve is disposed between the first electronic pressure regulating valve and the second electronic pressure regulating valve.

In some embodiments, a fifth electromagnetic valve is disposed between the third pressure sensor and the first residual pressure pipe interface, and a third electromagnetic valve is disposed between the third pressure sensor and the first leakage amount testing interface.

In some embodiments, the third pressure sensor is connected to the fourth solenoid valve, the safety valve, and the oxygen supply interface in sequence.

In some embodiments, a seventh electromagnetic valve is arranged between the pressure-stabilizing container and the third electronic pressure regulating valve.

In some embodiments, the second pressure sensor is further connected to a sixth solenoid valve and a pressure measurement interface in sequence.

In some embodiments, the third mass flow meter is connected with the eighth solenoid valve and the second residual pressure pipe interface in sequence.

In some embodiments, the second leak test interface is coupled to a fourth pressure sensor.

The beneficial effect that technical scheme that this application provided brought includes: the application provides a portable oxygen mask oxygen supply performance detector, which adopts a portable design, and the detector can be suitable for an external field by arranging an airflow structure in a box body; in addition, this application can detect a plurality of oxygen suppliment performances of oxygen mask, and the function is comparatively complete.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the gas circuit structure of the present invention;

in the figure: 1. a first electronic pressure regulating valve; 2. a second electronic pressure regulating valve; 3. a third electronic pressure regulating valve; 4. a first solenoid valve; 5. a second solenoid valve; 6. a third electromagnetic valve; 7. a fourth solenoid valve; 8. a fifth solenoid valve; 9. a sixth electromagnetic valve; 10. a seventh electromagnetic valve; 11. an eighth solenoid valve; 12. a first pressure sensor; 13. a second pressure sensor; 14. a third pressure sensor; 15. a first mass flow meter; 16. a second mass flow meter; 17. a third mass flow meter; 18. an air source input socket; 19. a pressure measurement interface; 20. a mask resistance interface; 21. a first residual pressure pipe interface; 22. a first leakage test interface; 23. a second leakage test interface; 24. an oxygen supply interface; 25. a second residual pressure pipe interface; 26. a gas storage tank; 27. a safety valve; 28. a pressure stabilizing container; 29. a vacuum pump; 30. and a fourth pressure sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1, the embodiment of the present application provides a portable oxygen mask oxygen supply performance detector, which includes a box body. The oxygen mask oxygen supply performance detector comprises an oxygen mask oxygen supply performance detector host, an oxygen pressure reduction module, a mask test tool, a mask wearing airtightness test tool, an oxygen hose, a power line and a portable case. The oxygen mask oxygen supply performance detector is characterized in that a gas circuit structure, an electrical structure and a control system are arranged in the oxygen mask oxygen supply performance detector main machine. The air path structure comprises a first electronic pressure regulating valve 1 and a vacuum pump 29. The first electronic pressure regulating valve 1 is connected with a first mass flow meter 15 and a second electronic pressure regulating valve 2 in two ways. In some embodiments, a first solenoid valve 4 is arranged between the first electronic pressure regulating valve 1 and the first mass flow meter 15, and a second solenoid valve 5 is arranged between the first electronic pressure regulating valve 1 and the second electronic pressure regulating valve 2. The first mass flow meter 15 is connected with the second pressure sensor 13 and the mask resistance interface 20 in sequence. The second pressure sensor 13 is also connected with the sixth electromagnetic valve 9 and the pressure measurement interface 19 in sequence. The second electronic pressure regulating valve 2 is sequentially connected with a second mass flowmeter 16 and a third pressure sensor 14, and the third pressure sensor 14 is divided into two paths to be sequentially connected with a first residual pressure pipe interface 21 and a first leakage quantity testing interface 22. A fifth electromagnetic valve 8 is arranged between the third pressure sensor 14 and the first residual pressure pipe interface 21, and a third electromagnetic valve 6 is arranged between the third pressure sensor 14 and the first leakage quantity testing interface 22. In some embodiments, the third pressure sensor 14 is connected to the fourth solenoid valve 7, the safety valve 27, and the oxygen supply interface 24 in sequence. The vacuum pump 29 is connected in series with the pressure stabilizing container 28, the third electronic pressure regulating valve 3, the third mass flowmeter 17 and the second leakage testing interface 23 in sequence. In some embodiments, a seventh electromagnetic valve 10 is provided between the surge tank 28 and the third electronic pressure regulating valve 3. And the third mass flow meter 17 is sequentially connected with the eighth electromagnetic valve 11 and the second residual pressure pipe interface 25. The second leakage test interface 23 is connected to a fourth pressure sensor 30.

Portable oxygen mask oxygen suppliment performance detector, its gas circuit structure can detect the oxygen suppliment performance that detects the oxygen mask through above-mentioned gas circuit structure including exhaling and experimental gas circuit of the resistance of breathing in, gas tightness and air leakage volume experimental gas circuit, negative pressure leakage volume test gas circuit. In some embodiments, the portable oxygen mask oxygen supply performance monitor further comprises an air supply processing circuit.

The expiration and inspiration resistance test gas circuit comprises a first pressure sensor 12, a first electric control pressure regulating valve, a first electromagnetic valve 4, a first mass flowmeter 15, a second pressure sensor 13, a mask resistance interface 20, a second electromagnetic valve 5, a second electronic pressure regulating valve 2, a second mass flowmeter 16, a third pressure sensor 14, a fifth electromagnetic valve 8 and a first residual pressure pipe interface 21. The breathing resistance test and the inspiration resistance test need larger gas flow, and the gas circuit is made of a red copper tube with larger tube diameter.

The working principle of the breath and inspiration resistance test gas circuit is as follows: before the test starts, the tool is installed on the detector. And the gas circuit starts to inflate the mask tool, the system automatically sets and adjusts the first electronic pressure regulating valve 1, and the pressure of a system gas source is set. And then adjusting the first mass flowmeter 15 to enable the pipeline flow to reach the test condition, and reading the value of the second pressure sensor 13 at the moment to be P1, wherein P1 is the background resistance of the test.

When oxygen supply mask expiration valve resistance is experimental, with the frock with oxygen supply mask with portable oxygen mask oxygen suppliment performance detector links to each other, after setting up the test condition on software operation interface, click the button and begin experimental, the first electronic air-vent valve 1 of system automatic setting regulation sets up system's air supply pressure, adjusts first mass flowmeter 15 makes pipeline flow reach test condition, then the system automatic reading the numerical value of second pressure sensor 13 is P2, with P2 and P1 subtract alright obtain oxygen supply mask's expiration resistance.

When the valve resistance test of breathing in of oxygen supply face guard, connect the breather pipe of oxygen supply face guard in the panel of tester on face guard resistance interface 20, with excess pressure union coupling in on the second excess pressure union coupling 25, set up the test condition on software operation interface after, click the button and begin the experiment, the first electronic pressure regulating valve 1 of system automatic setting regulation, set up system air supply pressure, open first solenoid valve 4 and second solenoid valve 5, adjust first mass flowmeter 15 and make the pipeline flow reach the test condition, adjust second electronic pressure regulating valve 2 and make excess pressure pipe pressure reach the test condition, then the system reads automatically the numerical value P3 of second pressure sensor 13, subtract numerical value P1 through calculation numerical value P3 and alright obtain the resistance of breathing in of oxygen supply face guard.

The breathing resistance and the breathing resistance of the oxygen mask are detected by controlling the system of the portable oxygen mask oxygen supply performance detector through software, so that the instrument automatically reaches the test condition, and the test result is automatically generated after the test is finished. In some embodiments, a surge tank 28 may be provided to reduce fluctuations in the test gas pressure input to the instrument through the surge tank 28, thereby improving test accuracy.

The air tightness and air leakage test air circuit comprises a first pressure sensor 12, a first electric control pressure regulating valve, a second electromagnetic valve 5, a second electronic pressure regulating valve 2, a second mass flowmeter 16, a third pressure sensor 14, a third electromagnetic valve 6 and a first leakage test interface 22.

The working principle of the air tightness and air leakage test air circuit is as follows: the oxygen supply mask and the portable oxygen supply performance detector are connected through the tool, the test condition is set, a button is clicked to start a test, the system automatically sets and adjusts the first electronic pressure regulating valve 1, the system air source pressure is set, the second electromagnetic valve 5 is opened, the system automatically adjusts the second electronic pressure regulating valve 2, the test pressure reaches the test condition, the flow value of the second mass flowmeter 16 is read after the test pressure is kept stable, the flow is the mask air leakage amount, and the mask air tightness detection work is achieved.

The negative pressure leakage testing gas path comprises a vacuum pump 29, a pressure stabilizing container 28, a seventh electromagnetic valve 10, a third electric control pressure regulating valve, a third mass flowmeter 17, a fourth pressure sensor 30, an eighth electromagnetic valve 11, a second leakage testing interface 23, a second residual pressure pipe interface 25 and the like.

The working principle of the negative pressure leakage quantity testing gas circuit is as follows: the oxygen supply mask is connected with the portable oxygen mask oxygen supply performance detector by using a tool, test conditions are set, a button is clicked to start a test, the system automatically sets and adjusts the third electronic pressure regulating valve 3, the test pressure reaches the test conditions, the flow value of the third mass flowmeter 17 is read after the test pressure is kept stable, the flow is the mask negative pressure air leakage, and the mask negative pressure air tightness detection work is realized.

The gas source processing loop mainly completes pressure detection and gas source stabilization of a test oxygen gas source. The air source processing loop comprises an air source input socket 18, and the air source input socket 18 is sequentially connected with an air storage tank 26, a first pressure sensor 12 and a first electronic pressure regulating valve 1 in series. The external air source of the air source input socket 18 is an oxygen gas cylinder (15MPa), and when the oxygen gas cylinder outputs an oxygen gas source, the oxygen gas source can output the oxygen gas source again (0.3MPa) through an oxygen pressure reducing module. The first pressure sensor 12 monitors the air supply pressure input into the instrument.

In some embodiments, the box body is provided with a panel, the panel is provided with an air inlet through hole and an air outlet through hole, an air suction device is arranged near the air inlet through hole, an air exhaust device is arranged near the air outlet through hole, and the air suction device and the air exhaust device are fans. The air suction device and the air exhaust device can accelerate the air flow in the box body, and oxygen is prevented from being accumulated in the box body to cause a test accident. The pressure measurement interface 19, face guard resistance interface 20, first excess pressure pipe interface 21, first leakage quantity test interface 22, second leakage quantity test interface 23, oxygen suppliment interface 24, second excess pressure pipe interface 25 all sets up on the panel.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable oxygen mask oxygen supply performance detector comprises a box body, and is characterized in that a first electronic pressure regulating valve (1) and a vacuum pump (29) are arranged in the box body; the first electronic pressure regulating valve (1) is connected with a first mass flow meter (15) and a second electronic pressure regulating valve (2) in two ways; the first mass flow meter (15) is sequentially connected with the second pressure sensor (13) and the mask resistance interface (20); the second electronic pressure regulating valve (2) is sequentially connected with a second mass flowmeter (16) and a third pressure sensor (14), and the third pressure sensor (14) is divided into two paths to be sequentially connected with a first residual pressure pipe interface (21) and a first leakage quantity testing interface (22); and the vacuum pump (29) is sequentially connected with the pressure stabilizing container (28), the third electronic pressure regulating valve (3), the third mass flowmeter (17) and the second leakage testing interface (23) in series.

2. The portable oxygen mask oxygen supply performance detector according to claim 1, further comprising an air source input socket (18), wherein the air source input socket (18) is connected in series with the air storage tank (26), the first pressure sensor (12) and the first electronic pressure regulating valve (1) in sequence.

3. The portable oxygen mask oxygen supply performance detector according to claim 1, wherein a first electromagnetic valve (4) is arranged between the first electronic pressure regulating valve (1) and the first mass flow meter (15), and a second electromagnetic valve (5) is arranged between the first electronic pressure regulating valve (1) and the second electronic pressure regulating valve (2).

4. The portable oxygen mask oxygen supply performance detector according to claim 1, wherein a fifth solenoid valve (8) is disposed between the third pressure sensor (14) and the first residual pressure pipe interface (21), and a third solenoid valve (6) is disposed between the third pressure sensor (14) and the first leakage test interface (22).

5. The portable oxygen mask oxygen supply performance detector according to claim 1, wherein the third pressure sensor (14) is connected to the fourth solenoid valve (7), the safety valve (27) and the oxygen supply interface (24) in sequence.

6. The portable oxygen mask oxygen supply performance detector according to claim 1, wherein a seventh electromagnetic valve (10) is arranged between the pressure stabilizing container (28) and the third electronic pressure regulating valve (3).

7. The portable oxygen mask oxygen supply performance detector according to claim 1, wherein the second pressure sensor (13) is further connected to a sixth solenoid valve (9) and a pressure measurement interface (19) in sequence.

8. The portable oxygen mask oxygen supply performance detector according to claim 1, wherein the third mass flow meter (17) is connected with the eighth solenoid valve (11) and the second residual pressure pipe interface (25) in sequence.

9. The portable oxygen mask oxygen supply performance detector of claim 1, wherein the second leak test interface (23) is connected to a fourth pressure sensor (30).