Inlet gas filtering module and gas leakage detection equipment

Abstract

The utility model belongs to the field of gas leakage detection equipment, and particularly relates to a gas inlet filtering module and gas leakage detection equipment. Comprising a pipeline, the pipeline is used for air inlet, a first pipeline part and a second pipeline part are arranged on the inner wall of the pipeline, the first pipeline part and the second pipeline part are in a circular ring shape, the first pipeline part and the second pipeline part are arranged front and back, and inner rings of the first pipeline part and the second pipeline part are provided with internal threads; the filtering net is arranged at the inlet end of the pipeline and comprises a first filtering net body and a second filtering net body, the first filtering net body and the second filtering net body are fixedly connected through a connecting rod, and external threads are arranged on the outer ring of the first filtering net body and the outer ring of the second filtering net body. The first filter screen and the second filter screen are installed on the first pipeline piece and the second pipeline piece in a threaded connection mode respectively. The utility model provides a gas inlet filtering module and gas leakage detection equipment, and aims to solve the problem that impurities enter a pipeline.

Description

Technical Field

[0001] The utility model belongs to the field of gas leak detection, and in particular relates to an air intake filter module and a gas leak detection device. Background Art

[0002] A gas leak detector is an analytical instrument that uses the mass-to-charge ratio of ionized molecules or atoms to determine the composition and structure of a sample. Its working principle is based on the principle that charged particles can be deflected in an electromagnetic field. By separating and detecting the mass differences of atoms, molecules, or molecular fragments of a substance, it can analyze the composition of the substance. With the rapid development of the domestic electrical industry, gas leak detection equipment has been widely used in lithium battery leak detection scenarios. For example: Application No. 202311816948.X, named, Electrolyte Leak Detection Method and Device, discloses leak detection of lithium batteries.

[0003] In gas leak detection equipment, the sample being tested (gas) flows through a pipeline and eventually reaches the detection location. After the test is complete, some sample often remains inside the pipeline, affecting the detection accuracy of the gas leak detection equipment. Therefore, before subsequent tests, gas leak detection equipment typically injects fresh air into the pipeline to significantly dilute or even completely remove any remaining sample.

[0004] However, when injecting fresh air into the pipeline, due to the complex external environment, it is very easy for impurities to be injected into the pipeline. Once impurities enter the pipeline, they will obviously affect the detection accuracy of the gas leak detection equipment and even risk the impurities causing pipeline blockage. Utility Model Content

[0005] The utility model provides an air intake filter module and a gas leak detection device, which aim to solve the problem of impurities entering the pipeline.

[0006] In order to achieve the above object, the utility model provides an air intake filter module, comprising

[0007] A pipe, the pipe is used for air intake, the inner wall of the pipe is provided with a first pipe member and a second pipe member, the first pipe member and the second pipe member are annular, and the first pipe member and the second pipe member are arranged in front and behind, and the inner rings of the first pipe member and the second pipe member are provided with internal threads;

[0008] A filter screen is arranged at the inlet end of the pipeline, and the filter screen includes a first filter screen and a second filter screen. The first filter screen and the second filter screen are fixedly connected by a connecting rod. The outer rings of the first filter screen and the second filter screen are both provided with external threads. The first filter screen and the second filter screen are respectively installed to the first pipe member and the second pipe member through threaded connection.

[0009] In this solution, a filter is configured in the pipeline to filter out impurities. After the impurities are filtered, they will not enter the pipeline, preventing the impurities from affecting the detection of gas leak detection equipment. At the same time, it also prevents the pipeline from being blocked by impurities when there are too many impurities.

[0010] Preferably, since the filter screen may affect the air intake of the pipeline, the inlet of the pipeline in this solution is configured as a bell mouth, and the first filter screen and the second filter screen are installed in the bell mouth;

[0011] The sizes of the first filter screen and the second filter screen are adapted to the size of the bell mouth.

[0012] In this solution, the inlet of the pipe is designed to be trumpet-shaped. Obviously, the trumpet-shaped inlet can increase the air intake area and achieve a larger air intake volume. When the air intake volume is increased, even if the filter is partially blocked by impurities, sufficient air intake can be guaranteed for the gas leak detection equipment.

[0013] Preferably, in order to achieve a better impurity filtering effect, the first filter screen of this solution is arranged outside the second filter screen, and the aperture of the first filter screen is larger than the aperture of the second filter screen.

[0014] Preferably, since the first and second filters are connected and the second filter is located inside, installation becomes inconvenient. Therefore, in this solution, a circular guide surface is provided at the front end of the first and / or second pipe member, the guide surface being inclined toward the inner ring of the pipe member and used to guide the installation of the filter.

[0015] This solution guides the first filter screen and the second filter screen to positions where they are threadably matched with the first pipe member and the second pipe member through the configured guide surface, thereby facilitating the installation of the first filter screen and the second filter screen.

[0016] Preferably, in order to facilitate the installation of the filter, the first filter is arranged on the outside of the second filter, and a protrusion is provided on the outside of the first filter for driving the filter to rotate and install.

[0017] This solution sets a protrusion on the first filter. Therefore, when the first filter needs to be installed, the user can use the protrusion as a force point to drive the first filter to rotate, and the first filter and the second filter can be installed at the same time.

[0018] Preferably, a plurality of the raised portions are provided, and the raised portions are distributed in a circular ring shape.

[0019] Preferably, since two filters are configured, it may be impossible to determine the clogging status of the filters by simply observing them. Therefore, the present solution also includes an ultrasonic flow meter, which is installed in the pipeline and is located at the rear end of the filter.

[0020] This solution detects the air flow in the pipeline by configuring an ultrasonic flow meter. When the air flow in the pipeline is detected to be low, it means that the filter is seriously blocked.

[0021] In order to solve the problem of impurities affecting the detection of gas leak detection equipment, the second aspect of the present invention discloses a gas leak detection equipment, including the above-mentioned air intake filter module. The gas leak detection equipment filters out impurities through the above-mentioned air intake filter module, thus solving the problem of impurities affecting the detection of gas leak detection equipment.

[0022] The beneficial effects of the present invention are: First, in this solution, a filter is arranged in the pipeline to filter out impurities. After the impurities are filtered, the impurities will not enter the pipeline, thus avoiding the impurities affecting the detection of the gas leak detection equipment. At the same time, it also avoids the impurities causing the pipeline to be blocked when there are too many impurities.

[0023] Second, the present invention adopts a threaded connection method to realize the installation of the filter. Therefore, when impurities are adsorbed on the filter, the filter can be disassembled by threaded disassembly, and then the filter can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the air intake filter module.

[0025] Figure 2 Cross-sectional view of the filter installed on the pipe.

[0026] Figure 3 Schematic diagram of the filter.

[0027] The reference numerals include: pipeline 1 , first mounting ring 2 , first filter screen 3 , second mounting ring 4 , second filter screen 5 , connecting rod 6 , ultrasonic gas flowmeter 7 . DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. When the following description refers to the drawings, unless otherwise indicated, identical numbers in different drawings represent identical or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0029] In this disclosure, unless otherwise specified, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" are used in this disclosure to distinguish one element from another and do not convey order or importance.

[0030] Example 1

[0031] Basically as attached Figure 1 To the attached Figure 2 As shown, an air intake filter module can filter the air entering the gas leak detection device to prevent external impurities from being drawn into the gas leak detection device. The air intake filter module specifically includes a pipeline 1, a first filter 3, a second filter 5 and an ultrasonic gas flow meter 7.

[0032] The pipe 1 in the disclosed embodiment is a metal pipe 1 with a trumpet-shaped inlet. A first filter 3 and a second filter 5 are provided at the inlet of the metal pipe 1. The first filter 3 is disposed outside the second filter 5. These filters filter impurities, preventing them from entering the pipe 1. Furthermore, in the disclosed embodiment, the aperture of the first filter 3 is preferably larger than that of the second filter 5 to achieve better impurity filtering.

[0033] For example, when external air is drawn in through pipe 1, impurities in the air are blocked by first filter 3 and second filter 5, preventing them from entering pipe 1. The first and second filters 3 and 5 work together to filter out impurities, achieving a better impurity filtration effect than using only one filter.

[0034] To facilitate cleaning and replacement of the first filter 3 and the second filter 5, a first pipe 1 and a second pipe 1 are provided inside the pipe 1 in the embodiment of the present disclosure. The first pipe 1 and the second pipe 1 are annular in shape, and the outer rings of the first pipe 1 and the second pipe 1 are mounted to the inner wall of the pipe 1 by welding. The inner rings of the first pipe 1 and the second pipe 1 are also provided with internal threads. At the same time, the outer rings of the first filter 3 and the second filter 5 are provided with external threads in the embodiment of the present disclosure. The first filter 3 can be connected to the internal threads of the first pipe 1 via external threads, and the second filter 5 can be connected to the internal threads of the second pipe 1 via external threads.

[0035] In order to facilitate the installation of the first filter 3 and the second filter 5 in the disclosed embodiment, guide surfaces are provided on the outside of the first pipe 1 and the second pipe 1, and the guide surfaces are inclined. The guide surface provided at the front end of the first pipe 1 is inclined toward the inner ring of the first pipe 1, and the guide surface provided at the front end of the second pipe 1 is inclined toward the inner ring of the second pipe 1. When the first filter 3 is installed, the first filter 3 contacts the guide surface, and the guide surface guides the first filter 3 for assembly. When the second filter 5 is installed, the second filter 5 contacts the guide surface, and the guide surface guides the second filter 5 for assembly.

[0036] Take an application scenario as an example: when the first filter 3 and the second filter 5 need to be removed for cleaning, the first filter 3 can be separated from the first pipe 1, and the second filter 5 can be separated from the second pipe 1, so that the first filter 3 and the second filter 5 are separated from the pipe 1, and the first filter 3 and the second filter 5 can be cleaned.

[0037] To facilitate simultaneous removal of the first and second filters 3 and 5, a metal connecting rod 6 is provided between the first and second filters 3 and 5. Since the first and second filters 3 and 5 are connected by the first connecting rod 6, the second filter 5 can be removed simultaneously with the removal of the first filter 3, making the filter easier to use.

[0038] In this embodiment, the connecting rod 6 is preferably detachably connected to the first filter 3 and the second filter 5 using a threaded connection. Therefore, the connecting rod 6 can be disconnected from the first filter 3 and the second filter 5 by rotating. With this arrangement, if the first filter 3 or the second filter 5 becomes damaged, the connecting rod 6 can be disconnected from the first filter 3 or the second filter 5, and then replaced with a new one.

[0039] In order to facilitate the user to install and remove the first filter 3 and the second filter 5, the outer end surface of the first filter 3 is provided with a raised portion, which is arc-shaped. There are at least two raised portions, which are symmetrically distributed in a circular shape.

[0040] For example, to install the first and second filters 3 and 5, align the first and second filters 3 and 5 with the threaded mating positions. Using the raised portion as a fulcrum, the first and second filters 3 and 5 are rotated in the forward direction to install the first and second filters 3 and 5. To remove the first and second filters 3 and 5, simply use the raised portion as a fulcrum to rotate the first and second filters 3 and 5 in the reverse direction to remove the first and second filters 3 and 5.

[0041] When a large amount of impurities are clogged on the filter, the gas will be blocked and cannot be sucked into the pipeline 1. Therefore, in the embodiment of the present disclosure, an ultrasonic gas flow meter 7 is also configured on the pipeline 1 to detect the gas flow in the pipeline 1.

[0042] For example, when a large amount of impurities are adsorbed on the filter, they block external air from entering pipe 1. Furthermore, due to the configuration of two filters, the second filter 5 becomes clogged by the first filter 3, making it difficult for the user to detect the blockage of the second filter 5. Therefore, the disclosed embodiment can detect filter blockage by monitoring the flow rate within pipe 1, allowing the user to clean or replace the filter promptly.

[0043] Example 2

[0044] The disclosed embodiment provides a gas leak detection device, comprising the air intake filter module of Example 1 and a gas leak detection device body, wherein the gas leak detection device body may be the gas leak detection device disclosed in Application No. 202311816948.X. During implementation, the air intake filter module is directly installed to the inlet of the air intake pipe 1 of the gas leak detection device by welding or other connection methods in the prior art. The air intake filter module is used to filter the intake air, thereby preventing external impurities from entering the pipe 1 of the gas leak detection device.

[0045] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An air intake filter module, characterized in that: include A pipe, the pipe is used for air intake, the inner wall of the pipe is provided with a first pipe member and a second pipe member, the first pipe member and the second pipe member are annular, and the first pipe member and the second pipe member are arranged in front and behind, and the inner rings of the first pipe member and the second pipe member are provided with internal threads; A filter screen is arranged at the inlet end of the pipeline, and the filter screen includes a first filter screen and a second filter screen. The first filter screen and the second filter screen are fixedly connected by a connecting rod. The outer rings of the first filter screen and the second filter screen are both provided with external threads. The first filter screen and the second filter screen are respectively installed to the first pipe member and the second pipe member through threaded connection.

2. The air intake filter module according to claim 1, characterized in that: The inlet of the pipeline is configured as a bell mouth, and the first filter screen and the second filter screen are installed in the bell mouth; The sizes of the first filter screen and the second filter screen are adapted to the size of the bell mouth.

3. The air intake filter module according to claim 2, characterized in that: The first filter is arranged outside the second filter, and the aperture of the first filter is larger than that of the second filter.

4. The air intake filter module according to claim 1, characterized in that: A circular guide surface is provided at the front end of the first pipe member and / or the second pipe member. The guide surface is inclined toward the inner ring of the pipe member and is used to guide the installation of the filter screen.

5. The air intake filter module according to claim 1, characterized in that: The first filter screen is arranged on the outside of the second filter screen. A protrusion is arranged on the outside of the first filter screen. The protrusion is used to drive the filter screen to rotate and install.

6. The air intake filter module according to claim 5, characterized in that: A plurality of raised portions are provided, and the raised portions are distributed in a circular ring shape.

7. The air intake filter module according to any one of claims 1 to 6, characterized in that: It also includes an ultrasonic flow meter, which is installed on the pipeline and located at the rear end of the filter.

8. A gas leak detection device, characterized in that: It comprises the air intake filter module according to any one of claims 1 to 7.

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