WO2022165915A1

WO2022165915A1 - Detection device for detecting leakage amount and permeation amount of water and oxygen

Info

Publication number: WO2022165915A1
Application number: PCT/CN2021/080465
Authority: WO
Inventors: 刘利频; 徐俊; 曾旭勇; 杨运达
Original assignee: 广州西唐机电科技有限公司
Priority date: 2021-02-02
Filing date: 2021-03-12
Publication date: 2022-08-11
Also published as: CN112798186A

Abstract

A detection device for detecting a leakage amount and permeation amount of water and oxygen, comprising a detection box (100), a first air inlet pipe (200), a second air inlet pipe (300), an exhaust pipe group (400), an oxygen content detection element (510), and a water content detection element (520). In this way, the leakage amount and the permeation amount of water and oxygen of a sample can be detected. Test modes can be flexibly selected according to samples with different features, detection requirements of the samples with different features can be met, and the universality is high. Moreover, the same device can be used for flexibly detecting the leakage amount and the permeation amount of moisture of the sample and can also be used for detecting the leakage amount and the permeation amount of oxygen of the sample, such that the operation is simple, the detection cost is relatively low, and the detection efficiency is relatively high. In addition, the sample would not be damaged, and the integrity of the sample is ensured.

Description

Detection device for detecting leakage and penetration of water and oxygen

technical field

The invention relates to the technical field of test equipment, in particular to a detection device for detecting the leakage and penetration of water and oxygen.

Background technique

As the country's requirements for drug quality become more and more strict, higher-level requirements are put forward for the packaging quality of drugs. Medications are at risk of developing cracks or cracks during the various stages of packaging, so it is critical to check the tightness of the packaging. In the process of tightness testing, it is necessary to detect the leakage and penetration of water and oxygen. Traditional detection methods include vacuum decay method, mass extraction method, high-voltage discharge method and laser method, etc., which cannot be compatible with the detection requirements of leakage and penetration of water and oxygen.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a detection device for detecting the leakage and penetration of water and oxygen in order to solve the problem of incompatibility with the detection requirements of the leakage and penetration of water and oxygen.

Its technical solutions are as follows:

In one aspect, a detection device for detecting leakage and penetration of water and oxygen is provided, comprising:

A detection box, the detection box includes a first box body and a second box body, the first box body is provided with a first cavity, the second box body is provided with a second cavity, and the first box The body can be sealingly connected with the second box body, so that the first cavity is communicated with the second cavity to form a test cavity;

A first air inlet pipe, the first air inlet pipe is used to send the test gas into the first cavity, and the first air inlet pipe is provided with a first air inlet pipe for controlling the conduction or cut-off of the first air inlet pipe. switch element;

a second air inlet pipe, the second air inlet pipe is used to send the carrier gas into the second cavity;

an exhaust pipe group, the exhaust pipe group includes a first exhaust pipe, a second exhaust pipe and a second switch element, the first exhaust pipe and the second exhaust pipe are all connected with the second exhaust pipe The cavity is communicated, and the second switch element is used to make the first exhaust pipe and the second exhaust pipe alternately conduct with the second cavity;

an oxygen content detection element, the oxygen content detection element is disposed corresponding to the first exhaust pipe, and the oxygen content detection element is used for detecting the oxygen content in the gas; and

A water content detection element, the water content detection element is disposed corresponding to the first exhaust pipe, and the water content detection element is used for detecting the water content in the gas.

The technical solution is further described below:

In one embodiment, the exhaust pipe group further includes a third exhaust pipe and a third switch element, the third exhaust pipe communicates with the first cavity, and the third switch element is used for Control the turn-on or turn-off of the third exhaust pipe.

In one embodiment, the detection device for detecting the leakage and penetration of water and oxygen further includes a temperature control module, and the temperature control module is used to adjust the temperature in the test chamber.

In one of the embodiments, the detection device for detecting the leakage and penetration of water and oxygen further includes a humidity detection element, and the humidity detection element is arranged in the first cavity.

In one of the embodiments, the detection device for detecting the leakage and penetration of water and oxygen further includes a positioning component, and the positioning component is used for performing the detection on the first box body and the second box body. position.

In one embodiment, the detection device for detecting the leakage and permeation of water and oxygen further includes a flow detection element, and the flow detection element is used to measure the flow rate of the test gas in the first air intake pipe test.

In one of the embodiments, the detection device for detecting the leakage and penetration of water and oxygen further includes a filler, the filler is arranged in the second cavity, and the filler is provided with a fixed department.

In one embodiment, the exhaust pipe group further includes an exhaust manifold, an intake end of the exhaust manifold communicates with the second cavity, and an outlet end of the exhaust manifold communicates with the first cavity Both the exhaust pipe and the second exhaust pipe are in communication, and the second switch element is used to make the first exhaust pipe and the second exhaust pipe alternately communicate with the exhaust manifold.

In one embodiment, the second exhaust pipe includes a first branch pipe and a second branch pipe, and both the first branch pipe and the second branch pipe are communicated with an outlet end of the exhaust main pipe, and the oxygen content The detection element is arranged corresponding to the first branch pipe, and the water content detection element is arranged corresponding to the second branch pipe.

In one of the embodiments, the detection device for detecting the leakage and penetration of water and oxygen further includes a fourth switch element, and the fourth switch element is used to control the first branch pipe and the second branch pipe. The branch pipe is connected or closed with the outlet end of the exhaust main pipe.

The detection device for detecting the leakage and permeation of water and oxygen in the above embodiment can flexibly select test methods for samples with different characteristics, can adapt to the detection requirements of samples with different characteristics, and has strong versatility. In addition, the same set of devices can be used to flexibly detect the leakage and penetration of water in the sample, and also detect the leakage and penetration of oxygen in the sample. The operation is simple, the detection cost is low, and the detection efficiency is high. Moreover, it will not cause damage to the sample, ensuring the integrity of the sample.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of a container sample detected by a detection device for detecting leakage and penetration of water and oxygen according to an embodiment;

2 is a schematic structural diagram of a container sample detected by a detection device for detecting leakage and penetration of water and oxygen according to another embodiment;

3 is a schematic structural diagram of the detection device for detecting the leakage and penetration of water and oxygen in FIG. 1 to detect a material sample;

4 is a schematic structural diagram of a material sample detected by a detection device for detecting leakage and penetration of water and oxygen according to another embodiment;

5 is a schematic structural diagram of a material sample detected by a detection device for detecting leakage and penetration of water and oxygen according to yet another embodiment;

FIG. 6 is a schematic structural diagram of a material sample detected by a detection device for detecting leakage and penetration of water and oxygen according to another embodiment.

Description of reference numbers:

100, detection box, 110, first box, 111, first cavity, 120, second box, 121, second cavity, 130, test cavity, 200, first intake pipe, 210, first switch element, 300, second intake pipe, 400, exhaust pipe group, 410, first exhaust pipe, 420, second exhaust pipe, 421, first branch pipe, 422, second branch pipe, 423, fourth switch element , 430, the second switch element, 440, the exhaust manifold, 510, the oxygen content detection element, 520, the water content detection element, 600, the third exhaust pipe, 610, the third switch element, 700, the temperature control module, 800, humidity detection element, 900, filler, 2100, container sample, 2200, material sample.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

As shown in FIG. 1 to FIG. 4 , in one embodiment, a detection device for detecting leakage and penetration of water and oxygen is provided, including a detection box 100 , a first intake pipe 200 , and a second intake pipe 300 , the exhaust pipe group 400 , the oxygen content detection element 510 and the water content detection element 520 . In this way, the leakage and permeation amounts of water and oxygen in the sample can be detected.

The detection box 100 includes a first box body 110 and a second box body 120, the first box body 110 is provided with a first cavity 111, the second box body 120 is provided with a second cavity, and the first box body 110 can It is sealed with the second box body 120 so that the first cavity 111 is communicated with the second cavity 121 to form a test cavity 130 . The first air intake pipe 200 is used for feeding the test gas into the first cavity 111 . The first intake pipe 200 is provided with a first switch element 210 for controlling the conduction or cut-off of the first intake pipe 200 . The second air inlet pipe 300 is used for feeding the carrier gas into the second cavity 121 . The exhaust pipe group 400 includes a first exhaust pipe 410 , a second exhaust pipe 420 and a second switch element 430 . The first exhaust pipe 410 and the second exhaust pipe 420 are both communicated with the second cavity 121 . The switch element 430 is used to make the first exhaust pipe 410 and the second exhaust pipe 420 communicate with the second cavity 121 alternately. The oxygen content detection element 510 is disposed corresponding to the first exhaust pipe 410 , and the oxygen content detection element 510 is used to detect the oxygen content in the gas. The water content detection element 520 is disposed corresponding to the first exhaust pipe 410, and the water content detection element 520 is used for detecting the water content in the gas.

As shown in FIG. 1 and FIG. 2 , when it is necessary to detect the leakage of the container samples 2100 such as plastic packaging, metal, glass, etc., the first box body 110 and the second box body 120 are separated first, and the container samples 2100 are placed in the Inside the second cavity 121 of the second box 120 ; then sealingly connect the first box 110 and the second box 120 , so that the container sample 2100 is placed in the sealed test cavity 130 ; then use the second air inlet pipe 300 Send the carrier gas (the carrier gas can be high-purity nitrogen or other inert gas) into the test chamber 130, and use the second switch element 430 to make the first exhaust pipe 410 and the test chamber 130 cut off so that the second exhaust pipe 420 is connected to the test cavity 130, so that the carrier gas in the test cavity 130 is discharged through the second exhaust pipe 420, and then the test cavity 130 can be cleaned, so that the air in the test cavity 130 is discharged to avoid oxygen in the air or Moisture affects the detection result (of course, the second air inlet pipe 300 can also be used to pass the carrier gas into the test chamber 130 to clean the test chamber 130 ). After the test chamber 130 is cleaned by the carrier gas, the second switch element 430 is used to make the first exhaust pipe 410 and the test chamber 130 conduct, so that the second exhaust pipe 420 and the test chamber 130 are cut off, so that the carrier gas passes through the first exhaust pipe 410 and the test chamber 130. The oxygen content detection element 510 and the water content detection element 520 on the exhaust pipe 410 can accurately detect the oxygen content and water content in the carrier gas, and then can detect the oxygen content and water content of the container samples 2100 such as plastic packaging, metal, and glass. Leakage is accurately detected.

As shown in FIG. 3 to FIG. 6 , when the penetration amount of material samples 2200 such as sheets and films needs to be detected, the first box 110 and the second box 120 are first separated, and the material samples 2200 are placed in the first box. between the box body 110 and the second box body 120; and then sealingly connect the first box body 110 and the second box body 120, so that the material sample 2200 separates the test cavity 130 into the first cavity 111 and the second cavity 121 Then use the second intake pipe 300 to send the carrier gas into the second cavity 121, and use the second switch element 430 to make the first exhaust pipe 410 and the second cavity 121 cut off so that the second exhaust pipe 420 and The second cavity 121 is turned on, so that the carrier gas in the second cavity 121 is discharged through the second exhaust pipe 420, so that the second cavity 121 can be cleaned, so that the air in the second cavity 121 is discharged, The influence of oxygen or moisture in the air in the second cavity 121 on the detection result is avoided. After the cleaning of the second cavity 121 by the carrier gas is completed, the first air inlet pipe 200 is turned on by the first switch element 210, and the test gas (the test gas can be a protective gas with a certain humidity, or can be passed through the first air inlet pipe 200) It is oxygen of a certain purity, or a mixture of oxygen and a protective gas with a certain humidity) is sent into the first cavity 111, and then the first switch element 210 is used to make the first intake pipe 200 cut off. The second switch element 430 is then used to make the first exhaust pipe 410 and the test cavity 130 conduct, and the second exhaust pipe 420 and the test cavity 130 to be cut off, so that the carrier gas in the first cavity 111 passes through the first exhaust gas The oxygen content detection element 510 and the water content detection element 520 on the tube 410 can accurately detect the oxygen content and water content in the carrier gas, and then can accurately detect the permeation amount of the material samples 2200 such as sheets and films. detection.

The sealing connection between the first box body 110 and the second box body 120 can be realized by adding a sealing gasket, a sealing ring or coating sealing grease on the contact surface of the first box body 110 and the second box body 120 , it can also be realized by screwing, clamping or plugging, etc., as long as the tightness of the test cavity 130 is ensured.

Wherein, the first switch element 210 may be a solenoid valve, a pneumatic valve, or other existing elements capable of regulating the conduction and cut-off of the first air intake pipe 200 .

Wherein, the second switch element 430 may be a three-way solenoid valve, a three-way pneumatic valve, or other existing components capable of regulating and controlling the alternating on and off of the first exhaust pipe 410 and the second exhaust pipe 420 .

The oxygen content detection element 510 may be a coulomb detector or other existing elements capable of detecting the oxygen content in the carrier gas.

Wherein, the water content detection element 520 can be an electrolytic water detector, an infrared micro-water detector, a high-precision hygrometer or other existing elements capable of detecting the water content in the carrier gas.

The quantity and position of the container samples 2100 in the test cavity 130 can be flexibly adjusted.

Wherein, for the conduction between the first air intake pipe 200 and the first cavity 111, a corresponding channel can be opened on the first box body 110, so that the first air intake pipe 200 is connected with the first cavity 111 through the channel, or the The first air intake pipe 200 is inserted into the first cavity 111 . For the conduction between the second air intake pipe 300 and the second cavity 121, a corresponding channel can be opened on the second box body 120, so that the second air intake pipe 300 is connected to the second cavity 121 through the channel, or the second air intake pipe 300 is connected to the second cavity 121 through the channel. The intake pipe 300 is inserted into the second cavity 121 . The conduction between the first exhaust pipe 410 and the second exhaust pipe 420 and the second cavity 121 can open a corresponding channel on the second box 120, so that the first exhaust pipe 410 and the second exhaust pipe 410 and the second exhaust pipe 420 is communicated with the second cavity 121 through a channel, or the first exhaust pipe 410 and the second exhaust pipe 420 are inserted into the second cavity 121 . The first intake pipe 200 , the second intake pipe 300 , the first exhaust pipe 410 and the second exhaust pipe 420 are preferably metal pipes, which are easy to use and will not be easily deformed.

As shown in FIGS. 1 to 5 , in one embodiment, the exhaust pipe group 400 further includes a third exhaust pipe 600 and a third switch element 610 . The third exhaust pipe 600 communicates with the first cavity 111 . The third switch element 610 is used to control the turn-on or turn-off of the third exhaust pipe 600 . In this way, when the penetration amount of material samples 2200 such as sheets and films is detected, after the material sample 2200 divides the test cavity 130 into the first cavity 111 and the second cavity 121, the third switching element 610 can be used to make the third The exhaust pipe 600 is in communication with the first cavity 111, the first air intake pipe 200 is used to send the carrier gas into the first cavity 111, and the carrier gas is discharged from the third exhaust pipe 600, so that the first cavity can be 111 is cleaned so that the air in the first cavity 111 is discharged, so as to avoid the influence of oxygen or moisture in the air on the detection result. Wherein, the third switch element 610 may be a solenoid valve, a pneumatic valve or other existing elements capable of regulating the conduction and cut-off of the third exhaust pipe 600 . For the connection between the third exhaust pipe 600 and the first cavity 111, a corresponding channel can be opened on the first box body 110, so that the third exhaust pipe 600 is connected with the first cavity 111 through the channel, or the The third exhaust pipe 600 is inserted into the first cavity 111 .

As shown in FIG. 1 to FIG. 6 , in one embodiment, the detection device for detecting the leakage and permeation of water and oxygen further includes a temperature control module 700 , and the temperature control module 700 is used to monitor the inside of the test cavity 130 . temperature is adjusted. In this way, the temperature in the test cavity 130 is accurately regulated by the temperature control module, so that the test environment meets the corresponding temperature requirements and the accuracy of the test results is ensured. Wherein, the temperature control module may be a temperature control board or other existing components capable of regulating and controlling the temperature. The temperature control module may be disposed on the outer wall of the first box body 110 and/or the second box body 120 . The temperature control method of the temperature control module can be closed-loop control, and the adjustment of the temperature is more accurate. The temperature in the test cavity 130 may be detected by a temperature sensor first, and then the test cavity 130 may be heated by components such as a temperature control board.

As shown in FIG. 1 to FIG. 6 , on the basis of any of the above-mentioned embodiments, the detection device for detecting the leakage and penetration of water and oxygen further includes a humidity detection element 800 . The humidity detection element 800 is disposed in the first cavity 111 . In this way, when the penetration amount of the material samples 2200 such as sheets and films is detected, the material sample 2200 divides the test cavity 130 into the first cavity 111 and the second cavity 121, and the test gas is fed into the first air inlet pipe 200. After the first cavity 111, the humidity in the first cavity 111 can be detected in real time by the humidity detection element 800, and then compared with the detection result of the subsequent water content detection element 520, so that the detection result can be checked. , to ensure the accuracy of the test. The humidity detection element 800 may be a humidity sensor or other existing elements capable of detecting humidity.

On the basis of any of the above embodiments, the detection device for detecting the leakage and penetration of water and oxygen further includes a positioning assembly (not marked), and the positioning assembly is used to detect the first box body 110 and the second box body 120 . to locate. In this way, the positioning assembly is used for the positioning and cooperation of the first box body 110 and the second box body 120 , so that the first box body 110 and the second box body 120 can achieve accurate and reliable sealing connection and ensure the sealing of the test cavity 130 . , to ensure the accuracy of the test results.

Wherein, the positioning cooperation of the positioning assembly with the first box body 110 and the second box body 120 is preselected to be realized by means of concave-convex matching, which is simple and convenient, and will not affect the sealing effect.

In one embodiment, the positioning assembly includes a positioning pin. The first box body 110 is provided with a first socket for inserting and mating with the positioning pin. The second box body 120 is provided with a second socket for inserting and mating with the positioning pin. In this way, one end of the positioning pin is inserted into the second jack of the second box 120, and then the first box 110 is covered on the second box 120, so that the other end of the positioning pin is inserted into the first jack, Therefore, the sealed connection between the first box body 110 and the second box body 120 can be positioned.

On the basis of any of the above embodiments, the detection device for detecting the leakage and penetration of water and oxygen further includes a flow detection element (not shown). The flow detection element is used to detect the flow of the test gas in the first intake pipe 200 . In this way, the flow rate detection element is used to accurately detect the flow rate of the test gas supplied into the first cavity 111 to meet the test conditions. Wherein, the flow detection element may be a flow meter or other element capable of detecting the flow of gas. The flow detection element may be inserted on the inner wall of the first intake pipe 200 .

As shown in FIG. 1 and FIG. 2 , on the basis of any of the above embodiments, the detection device for detecting the leakage and penetration of water and oxygen further includes a filler 900 . The filler 900 is disposed in the second cavity 121, and the filler 900 is provided with a fixing portion. In this way, when the leakage of the container samples 2100 such as plastic packaging, metal, glass, etc. is detected, the container samples 2100 can be fixed by the fixing part on the filler 900, and the space of the test cavity 130 can also be occupied, and the cleaning of the carrier gas can be improved. efficiency. Wherein, the filling member 900 may be a block, a column, a table or other structures; the fixing portion may be a fixing groove, a fixing clip or other existing structures capable of fixing the container sample 2100 .

As shown in FIG. 2 , FIG. 4 and FIG. 6 , on the basis of any of the above embodiments, the exhaust pipe group 400 further includes an exhaust manifold 440 . The intake end of the exhaust manifold 440 is communicated with the second cavity 121 , and the outlet end of the exhaust manifold 440 is communicated with both the first exhaust pipe 410 and the second exhaust pipe 420 . The second switch element 430 is used to make the first exhaust pipe 410 and the second exhaust pipe 420 communicate with the exhaust main pipe 440 alternately. In this way, when the test cavity 130 or the second cavity 121 is cleaned by the carrier gas, the carrier gas first enters the exhaust manifold 440 , and the second switch element 430 first makes the first exhaust pipe 410 and the exhaust manifold 440 cut off so that the The second exhaust pipe 420 is communicated with the exhaust manifold 440 , so that the carrier gas mixed with air is exhausted by the second exhaust pipe 420 to complete the cleaning of the test cavity 130 or the second cavity 121 . After the cleaning is completed, the second switch element 430 is used to make the first exhaust pipe 410 and the exhaust manifold 440 conduct, and the second exhaust pipe 420 and the exhaust manifold 440 are cut off, so that the carrier gas passes through the first exhaust pipe 410 The oxygen content detection element 510 and the water content detection element 520 on the carrier gas can accurately detect the oxygen content and water content in the carrier gas.

Wherein, when both the oxygen content detection element 510 and the water content detection element 520 correspond to the second exhaust pipe 420, the carrier gas may first pass through the oxygen content detection element 510 and then the water content detection element 520; or the carrier gas may first pass through the water content detection element 520. The water content detection element 520 then passes through the oxygen content detection element 510; it may also pass through the oxygen content detection element 510 and the water content detection element 520 at the same time.

As shown in FIGS. 2 , 4 and 6 , in one embodiment, the second exhaust pipe 420 includes a first branch pipe 421 and a second branch pipe 422 . Both the first branch pipe 421 and the second branch pipe 422 communicate with the outlet end of the exhaust manifold 440 . The oxygen content detection element 510 is provided corresponding to the first branch pipe 421 , and the water content detection element 520 is provided corresponding to the second branch pipe 422 . In this way, when the second switch element 430 makes the first exhaust pipe 410 and the exhaust main pipe 440 conduct, and the second exhaust pipe 420 and the exhaust main pipe 440 are blocked, the carrier gas is discharged through the first exhaust pipe 410 without Enter the first branch pipe 421 and the second branch pipe 422; when the second switch element 430 cuts off the first exhaust pipe 410 and the exhaust manifold 440 and makes the second exhaust pipe 420 and the exhaust manifold 440 conduct, the carrier gas The first branch pipe 421 and the second branch pipe 422 can be entered, so that the oxygen content in the carrier gas passing through the first branch pipe 421 is detected by the oxygen content detection element 510, and the oxygen content in the carrier gas passing through the second branch pipe 422 is detected by the water content detection element 520. The water content in the carrier gas is detected, so that the detection of oxygen content and water content do not interfere and affect each other.

As shown in Fig. 2, Fig. 4 and Fig. 6, further, the detection device for detecting the leakage and permeation amounts of water and oxygen further includes a fourth switch element 423. The fourth switch element 423 is used to control the conduction or cut-off of the first branch pipe 421 and the second branch pipe 422 and the outlet end of the exhaust main pipe 440 . In this way, when the second switching element 430 blocks the first exhaust pipe 410 and the exhaust manifold 440 and makes the second exhaust pipe 420 and the exhaust manifold 440 conduct, the fourth switching element 423 can further control the first exhaust pipe 410 and the exhaust manifold 440 . The conduction or cut-off of the branch pipe 421 and the second branch pipe 422 and the exhaust main pipe 440 is flexibly controlled. For example, the fourth switch element 423 can be used to make the first branch pipe 421 and the exhaust manifold 440 conduct, and the second branch pipe 422 and the exhaust manifold 440 to be cut off, and the fourth switch element 423 can also be used to make the second branch 422 and the exhaust The main pipe 440 is connected so that the first branch pipe 421 and the exhaust main pipe 440 are cut off, and the fourth switch element 423 can also make the first branch pipe 421 and the second branch pipe 422 communicate with the exhaust main pipe 440 . Wherein, the fourth switch element 423 may be a three-way solenoid valve, a three-way pneumatic valve or other existing components capable of regulating the conduction and cut-off of the first branch pipe 421 and the second branch pipe 422 .

It should be noted that "a certain body" and "a certain part" can be a part of the corresponding "component", that is, "a certain body", "a certain part" and the "other parts of the component" are integrally formed; "Other parts" of a separate component, that is, "a body" and "a part" can be manufactured independently, and then combined with "other parts of the component" to form a whole. The expression of the above-mentioned "some body" and "some part" in this application is only one of the embodiments, for the convenience of reading, rather than limiting the scope of protection of the application, as long as the above features are included and the functions are the same, it should be understood as This application is equivalent to the technical solution.

It should be noted that the components included in the "unit", "component", "mechanism" and "device" of the present application can also be combined flexibly, that is, modular production can be performed according to actual needs, so as to facilitate modular assembly. The division of the above-mentioned components in the present application is only one of the embodiments, for the convenience of reading, rather than limiting the scope of protection of the present application, as long as the above-mentioned components are included and have the same function, it should be understood as an equivalent technical solution of the present application.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed on", "disposed on", "fixed on" or "mounted on" another element, it can be directly on the other element or an intervening element may also be present . When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered to be a "fixed transmission connection" to another element, the two can be fixed in a detachable connection, or can be fixed in a non-detachable connection, as long as power transmission can be achieved, such as socket connection, snap connection. , integral molding fixing, welding, etc., can be realized in the prior art, and will not be redundant here. When a component and another component are perpendicular or approximately perpendicular to each other, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should also be understood that when interpreting the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted to include a margin of error that should be acceptable for a specific value determined by those skilled in the art within the deviation range. For example, "about", "approximately" or "substantially" can mean within one or more standard deviations, without limitation.

The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features It is considered to be the range described in this specification.

The above examples only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A detection device for detecting leakage and penetration of water and oxygen, comprising:

A detection box, the detection box includes a first box body and a second box body, the first box body is provided with a first cavity, the second box body is provided with a second cavity, and the first box The body can be sealingly connected with the second box body, so that the first cavity is communicated with the second cavity to form a test cavity;

A first air inlet pipe, the first air inlet pipe is used to send the test gas into the first cavity, and the first air inlet pipe is provided with a first air inlet pipe for controlling the conduction or cut-off of the first air inlet pipe. switch element;

a second air inlet pipe, the second air inlet pipe is used to send the carrier gas into the second cavity;

an exhaust pipe group, the exhaust pipe group includes a first exhaust pipe, a second exhaust pipe and a second switch element, the first exhaust pipe and the second exhaust pipe are all connected with the second exhaust pipe The cavity is communicated, and the second switch element is used to make the first exhaust pipe and the second exhaust pipe alternately conduct with the second cavity;

an oxygen content detection element, the oxygen content detection element is disposed corresponding to the first exhaust pipe, and the oxygen content detection element is used for detecting the oxygen content in the gas; and

A water content detection element, the water content detection element is disposed corresponding to the first exhaust pipe, and the water content detection element is used for detecting the water content in the gas.
The detection device for detecting leakage and penetration of water and oxygen according to claim 1, wherein the exhaust pipe group further comprises a third exhaust pipe and a third switch element, the third The exhaust pipe communicates with the first cavity, and the third switch element is used to control the conduction or cut-off of the third exhaust pipe.
The detection device for detecting leakage and penetration of water and oxygen according to claim 1, wherein the detection device for detecting leakage and penetration of water and oxygen further comprises a temperature control module , the temperature control module is used to adjust the temperature in the test chamber.
The detection device for detecting leakage and penetration of water and oxygen according to claim 1, wherein the detection device for detecting leakage and penetration of water and oxygen further comprises a humidity detection element, The humidity detection element is arranged in the first cavity.
The detection device for detecting leakage and permeation of water and oxygen according to claim 1, wherein the detection device for detecting leakage and permeation of water and oxygen further comprises a positioning assembly, wherein The positioning assembly is used for positioning the first box body and the second box body.
The detection device for detecting leakage and permeation of water and oxygen according to claim 1, wherein the detection device for detecting leakage and permeation of water and oxygen further comprises a flow detection element, The flow detection element is used to detect the flow of the test gas in the first intake pipe.
The detection device for detecting leakage and permeation of water and oxygen according to claim 1, wherein the detection device for detecting leakage and permeation of water and oxygen further comprises a filler, the The filler is arranged in the second cavity, and the filler is provided with a fixing part.
The detection device for detecting the leakage and penetration of water and oxygen according to any one of claims 1 to 7, wherein the exhaust pipe group further comprises an exhaust manifold, and the exhaust manifold has The intake end is communicated with the second cavity, the outlet end of the exhaust manifold is communicated with both the first exhaust pipe and the second exhaust pipe, and the second switch element is used to enable the The first exhaust pipe and the second exhaust pipe alternately communicate with the exhaust manifold.
The detection device for detecting leakage and penetration of water and oxygen according to claim 8, wherein the second exhaust pipe comprises a first branch pipe and a second branch pipe, the first branch pipe and the The second branch pipes are all communicated with the gas outlet end of the exhaust main pipe, the oxygen content detection element is arranged corresponding to the first branch pipe, and the water content detection element is arranged corresponding to the second branch pipe.
The detection device for detecting leakage and permeation of water and oxygen according to claim 9, wherein the detection device for detecting leakage and permeation of water and oxygen further comprises a fourth switch element and the fourth switch element is used to control the conduction or cut-off of the first branch pipe and the second branch pipe and the outlet end of the exhaust main pipe.