Pressure reducer structure and gas storage device

Abstract

The utility model discloses a pressure reducer structure and a gas storage device, the pressure reducer structure is used for the gas storage structure, the gas storage structure forms a gas storage cavity, the pressure reducer structure comprises a pressure reducer body and a gas pressure sensor, an exhaust channel and a detection channel which are communicated are formed in the pressure reducer body, the exhaust channel is suitable for being communicated with the gas storage cavity, and the detection channel is suitable for being communicated with the gas pressure sensor. The end, communicated with the exhaust channel, of the detection channel forms a communication port, the other end of the detection channel forms a mounting port, the mounting port is located above the communication port, and the air pressure sensor is arranged at the mounting port. According to the pressure reducer structure, the installation position of the air pressure sensor in the detection channel is higher than the communication position of the detection channel and the exhaust channel, and under the action of gravity, condensed water drops can be well prevented from flowing to the installation opening through the detection channel. Condensed water drops can be prevented from entering the barometric sensor to damage the barometric sensor, so that the barometric sensor can monitor output air pressure in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure reducers, in particular to a pressure reducer structure and a gas storage device. Background Art

[0002] With the continuous development of gas storage technology, pressure reducers play an important role in gas storage systems, especially in industrial equipment and gas supply devices. However, traditional pressure reducer structures have some problems. For example, the pressure sensor is easily misaligned or damaged by moisture or impurities in the gas, which in turn affects the pressure reduction performance of the pressure reducer and the safety of the entire gas storage device. Therefore, there is room for improvement. Utility Model Content

[0003] The first aspect of the present invention provides a pressure reducer structure, which has the advantage of preventing condensed water droplets from entering the air pressure sensor and causing damage to the air pressure sensor.

[0004] The pressure reducer structure according to the embodiment of the first aspect of the present utility model is used for an air storage structure, the air storage structure is formed with an air storage cavity, the pressure reducer structure includes: a pressure reducer body, a connected exhaust channel and a detection channel are formed in the pressure reducer body, the exhaust channel is suitable for communicating with the air storage cavity, one end of the detection channel communicating with the exhaust channel is formed as a communicating port, the other end of the detection channel is formed as an installation port, and the installation port is located above the communicating port; an air pressure sensor, the air pressure sensor is arranged at the installation port.

[0005] According to the pressure reducer structure of the first aspect of the embodiment of the utility model, the accuracy of the output air pressure value obtained by the air pressure sensor can be improved by setting a detection channel. In addition, the installation position of the air pressure sensor in the detection channel is higher than the connection position between the detection channel and the exhaust channel. Under the action of gravity, the detection channel can better prevent condensed water droplets from flowing to the installation port, thereby avoiding condensed water droplets from entering the air pressure sensor and causing damage to the air pressure sensor, thereby ensuring real-time monitoring of the output air pressure by the air pressure sensor.

[0006] According to some embodiments of the present invention, the detection channel extends upward in a direction away from the communication port; and / or the detection channel is straight.

[0007] According to some embodiments of the present invention, the exhaust passage includes at least a horizontal section extending in a horizontal direction, and the communication port is formed on an inner top wall of the horizontal section.

[0008] According to some embodiments of the present invention, the exhaust channel also includes an air inlet section and an air outlet section, the air inlet section is connected with the air outlet section through the horizontal section, the end of the air inlet section away from the horizontal section is suitable for connecting with the air storage chamber, and the connecting port and the air outlet section are both provided at the end of the horizontal section away from the air inlet section.

[0009] According to some embodiments of the present invention, a filter is provided in the exhaust passage, filter holes extending along the gas direction are formed on the filter, and the filter is located on the upstream side of the communication port.

[0010] According to some embodiments of the present invention, the filter element is disposed adjacent to the communication port.

[0011] According to some embodiments of the present invention, the pressure reducer body includes a fixing seat, a filter element mounting block and a connecting block which are independently formed respectively, the fixing seat is suitable for being fixed to the gas storage structure and forming a first channel, the filter element mounting block is arranged on the fixing seat and forms a second channel, the connecting block is arranged on the filter element mounting block and forms a third channel, the first channel, the second channel and the third channel together constitute the exhaust channel, and the inner circumferential surface of the second channel close to one end of the third channel is formed with a mounting groove, and the filter element is installed in the mounting groove.

[0012] According to some embodiments of the present invention, the filter element includes a main body and a filter portion, the main body is annular and forms a filter channel, the filter channel is connected to the exhaust channel, the filter portion is arranged on the main body and is located at the downstream end of the filter channel, and the filter hole is formed on the filter portion.

[0013] According to some embodiments of the present invention, the pressure reducer structure also includes an air guide tube, the air storage structure is formed with a gas outlet located at the bottom of the air storage cavity and connected to the air storage cavity, the inlet of the exhaust channel is located in the gas outlet, one end of the air guide tube is inserted into the inlet of the exhaust channel, and the other end of the air guide tube is suitable for extending upward into the air storage cavity.

[0014] A second aspect of the present invention provides a gas storage device.

[0015] The gas storage device according to the embodiment of the second aspect of the present utility model includes: the above-mentioned pressure reducer structure.

[0016] According to the air storage device of the second aspect of the embodiment of the present utility model, the accuracy of the output air pressure value obtained by the air pressure sensor can be improved by setting a detection channel. In addition, the installation position of the air pressure sensor in the detection channel is higher than the connection position between the detection channel and the exhaust channel. Under the action of gravity, the detection channel can better prevent condensed water droplets from flowing to the installation port, thereby avoiding condensed water droplets from entering the air pressure sensor and causing damage to the air pressure sensor, thereby ensuring real-time monitoring of the output air pressure by the air pressure sensor.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is a schematic structural diagram of a gas storage device according to an embodiment of the present utility model;

[0019] Figure 2 1 is a schematic structural diagram of a pressure reducer structure according to an embodiment of the present utility model;

[0020] Figure 3 yes Figure 2 A partial enlarged view of area A in the middle;

[0021] Figure 4 yes Figure 3 A partial enlarged view of the middle B area;

[0022] Figure 5 It is a cross-sectional view of the pressure reducer structure of an embodiment of the present utility model.

[0023] Reference numerals:

[0024] 100. Gas storage device;

[0025] 10. Pressure reducer structure;

[0026] 1. Pressure reducer body; 11. Exhaust channel; 111. Horizontal section; 112. Inlet section; 113. Outlet section; 114. Filter element; 1141. Filter hole; 1142. Main body; 1143. Filter section; 1144. Filter channel; 12. Detection channel; 121. Communication port; 122. Mounting port; 13. Fixing seat; 14. Filter element mounting block; 141. Mounting slot; 15. Connecting block; 2. Air pressure sensor; 3. Air guide tube;

[0027] 20. Gas storage structure; 210. Gas storage cavity; 220. Gas outlet. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the applicability of other processes and / or the use of other materials.

[0030] The following describes a pressure reducer structure 10 according to an embodiment of the first aspect of the present invention with reference to the accompanying drawings.

[0031] like Figure 1-Figure 5 As shown, the pressure reducer structure 10 according to the embodiment of the first aspect of the present utility model is used for the gas storage structure 20, and the gas storage structure 20 is formed with a gas storage cavity 210. The pressure reducer structure 10 includes: a pressure reducer body 1 and an air pressure sensor 2. A connected exhaust channel 11 and a detection channel 12 are formed in the pressure reducer body 1. The exhaust channel 11 is suitable for communicating with the gas storage cavity 210. One end of the detection channel 12 communicating with the exhaust channel 11 is formed as a connecting port 121, and the other end of the detection channel 12 is formed as an installation port 122. The installation port 122 is located above the connecting port 121; the air pressure sensor 2 is arranged at the installation port 122.

[0032] That is, the exhaust channel 11 is used to discharge the gas stored in the gas storage chamber 210. Since the detection channel 12 is connected to the exhaust channel 11, the air pressure in the detection channel 12 can be obtained by the air pressure sensor 2 to obtain the air pressure in the exhaust channel 11, that is, to obtain the output air pressure value of the pressure reducer structure 10. Specifically, one end of the detection channel 12 is connected to the exhaust channel 11 through the communication port 121, and the mounting port 122 at the other end of the detection channel 12 is blocked by the air pressure sensor 2. This can reduce the disturbance of the airflow in the exhaust channel 11 on the gas in the detection channel 12, so that the air pressure sensor 2 can accurately obtain the air pressure value in the detection channel 12, thereby improving the accuracy of the output air pressure value obtained by the air pressure sensor 2.

[0033] Furthermore, it is understood that high-pressure gas is stored in the gas storage chamber 210, and the high-pressure gas in the gas storage chamber 210 is decompressed by the pressure reducer structure 10 before being output. During the decompression process, due to the decrease in gas pressure and temperature, condensed water droplets will be present in the exhaust channel 11. In the present application, the mounting port 122 is located above the connecting port 121, that is, the mounting port 122 is higher than the connecting port 121, so that the mounting position of the air pressure sensor 2 in the detection channel 12 is higher than the connecting position between the detection channel 12 and the exhaust channel 11. Therefore, under the action of gravity, the detection channel 12 can better prevent condensed water droplets from flowing to the mounting port 122, thereby preventing condensed water droplets from entering the air pressure sensor 2 and causing damage to the air pressure sensor 2, thereby ensuring that the air pressure sensor 2 monitors the output air pressure in real time.

[0034] According to the pressure reducer structure 10 of the embodiment of the first aspect of the present invention, the accuracy of the output air pressure value obtained by the air pressure sensor 2 can be improved by setting the detection channel 12. In addition, the installation position of the air pressure sensor 2 in the detection channel 12 is higher than the connection position between the detection channel 12 and the exhaust channel 11. Under the action of gravity, the detection channel 12 can better prevent condensed water droplets from flowing to the installation port 122, thereby avoiding condensed water droplets from entering the air pressure sensor 2 and causing damage to the air pressure sensor 2, thereby ensuring real-time monitoring of the output air pressure by the air pressure sensor 2.

[0035] In some embodiments, an internal thread is formed on the inner circumference of the installation port 122 , and an external thread is formed on the outer circumference of the air pressure sensor 2 , so as to achieve a threaded connection between the air pressure sensor 2 and the installation port 122 .

[0036] According to some embodiments of the present invention, the detection channel 12 extends upward in a direction away from the connecting port 121. Therefore, even if there are water droplets in the detection channel 12, the water droplets in the detection channel 12 will flow and converge at the position of the connecting port 121 under the action of their own weight, and can flow into the exhaust channel 11 and be carried away by the back airflow, so as to avoid the water droplets from entering the air pressure sensor 2 and causing damage to the air pressure sensor 2, thereby extending the service life of the air pressure sensor 2 and improving the detection accuracy of the air pressure sensor 2. It should be noted that the extension direction of the detection channel 12 only needs to satisfy the overall upward extension trend. For example, the detection channel 12 can be parallel to the vertical direction, and there can also be a certain angle between the detection channel 12 and the vertical direction. No specific restrictions are made here.

[0037] According to some embodiments of the present invention, the detection channel 12 is straight, thereby simplifying the shape of the detection channel 12 to reduce the difficulty of processing and forming the detection channel 12, and preventing the inner wall surface of the detection channel 12 from being too complex and affecting the accuracy of air pressure detection.

[0038] According to some embodiments of the present invention, the exhaust channel 11 includes at least a horizontal section 111 extending in the horizontal direction, and the communication port 121 is formed on the inner top wall of the horizontal section 111. In other words, the detection channel 12 is connected to the horizontal section 111 of the exhaust channel 11. It is understood that when the gas exhausted from the gas storage chamber 210 flows into the horizontal section 111, the water droplets condensed due to the decompression and cooling gather at the bottom of the horizontal section 111 under the action of their own weight. Therefore, by providing the communication port 121 on the inner top wall of the horizontal section 111, it is possible to prevent the water droplets condensed in the horizontal section 111 from entering the detection channel 12 through the communication port 121, thereby preventing the water droplets from entering the air pressure sensor 2 through the detection channel 12 and causing damage to the air pressure sensor 2.

[0039] In one specific example, the communication port 121 is formed on the inner top wall of the horizontal section 111, the detection channel 12 extends vertically, the mounting port 122 is located directly above the communication port 121, and the probe of the air pressure sensor 2 is arranged directly opposite the communication port. Therefore, even if condensed water droplets are generated in the detection channel 12, the condensed water droplets can flow downward along the inner peripheral wall of the detection channel 12 and enter the exhaust channel 11 through the communication port 121. This can prevent the water droplets from entering the air pressure sensor 2 while preventing the water droplets from accumulating in the detection channel 12 and affecting the flow of gas, thereby preventing the air pressure sensor 2 from affecting the detection of the air pressure in the exhaust channel 11.

[0040] According to some embodiments of the present invention, the exhaust channel 11 also includes an air inlet section 112 and an air outlet section 113. The air inlet section 112 is connected to the air outlet section 113 through the horizontal section 111. The end of the air inlet section 112 away from the horizontal section 111 is suitable for connecting with the air storage chamber 210. The connecting port 121 and the air outlet section 113 are both arranged at the end of the horizontal section 111 away from the air inlet section 112. That is to say, the detection channel 12 and the air outlet section 113 are connected to the air storage chamber 210 through the horizontal section 111 and the air inlet section 112 in sequence. After the gas flows out of the air storage chamber 210, it flows through the air inlet section 112, the horizontal section 111 and the air outlet section 113 in sequence before being discharged. That is, the air outlet section 113 is closer to the position where the pressure reducer structure 10 outputs the gas. The detection channel 12 and the air outlet section 113 are arranged in the same section of the horizontal section 111, which can better shorten the distance between the detection channel 12 and the air outlet section 113, so that the air pressure sensor 2 can obtain the air pressure value entering the air outlet section 113, so that the value obtained by the air pressure sensor 2 is closer to the pressure value of the gas finally output by the pressure reducer structure 10, that is, the error of the output air pressure value obtained by the air pressure sensor 2 is reduced, so as to improve the accuracy of the output air pressure value detected by the air pressure sensor 2.

[0041] According to some embodiments of the present invention, a filter element 114 is provided within the exhaust passage 11. The filter element 114 is formed with filter holes 1141 extending in the direction of the gas flow. The filter element 114 is located upstream of the communication port 121. The term "upstream" is used relative to the direction of the gas flow within the exhaust passage 11. In other words, the gas flowing out of the gas storage chamber 210 first flows through the filter element 114 before flowing to the communication port 121. It is understandable that during the use of the pressure reducer structure 10 and the gas storage structure 20, as the use time increases, the pressure reducer structure 10 and the gas storage structure 20 will age and wear, which will produce solid impurities such as metal dust and debris. Therefore, when the air flow flows to the filter element 114, the gas portion can flow toward the downstream side of the filter element 114 through the filter hole 1141, while the solid impurities carried by the air flow cannot pass through the filter hole 1141, that is, the solid impurities in the air flow can be intercepted by the filter element 114, thereby preventing the solid impurities from entering the detection channel 12, so as to prevent the solid impurities from entering the detection channel 12 and colliding with the air pressure sensor 2, causing damage to the air pressure sensor 2.

[0042] According to some embodiments of the present invention, the filter element 114 is disposed adjacent to the communication port 121. Thus, by shortening the distance between the filter element 114 and the communication port 121, that is, shortening the flow distance of the airflow after passing through the filter element 114 and entering the detection channel 12, it is possible to prevent the airflow filtered by the filter element 114 from again entraining solid impurities in the exhaust channel 11 and flowing toward the communication port 121, thereby ensuring the filtering effect of the filter element 114 on the airflow flowing to the communication port 121, and further preventing solid impurities from entering the detection channel 12 and colliding with the air pressure sensor 2, causing damage to the air pressure sensor 2.

[0043] According to some embodiments of the present invention, the pressure reducer body 1 includes a fixing seat 13, a filter element mounting block 14, and a connecting block 15, which are independently formed. The fixing seat 13 is suitable for being fixed to the gas storage structure 20 and forming a first channel. The filter element mounting block 14 is provided on the fixing seat 13 and is formed with a second channel. The connecting block 15 is provided on the filter element mounting block 14 and is formed with a third channel. The first channel, the second channel, and the third channel together constitute the exhaust channel 11. The inner circumference of the second channel near one end of the third channel is formed with a mounting groove 141, and the filter element 114 is installed in the mounting groove 141. Therefore, before the filter element mounting block 14 and the connecting block 15 are combined, the filter element 114 can be installed in the mounting groove 141 first, and then the connecting block 15 can be fixed to the filter element mounting block 14. This can reduce the difficulty of installing the filter element 114 into the exhaust channel 11, thereby improving the assembly efficiency of the pressure reducer structure 10. The filter element mounting block 14 can be detachably connected to the fixing seat 13 and the connecting pipe, so that the filter element 114 can be removed for cleaning or replacement, thereby ensuring the filtering effect of the filter element 114.

[0044] In a specific example, the first channel includes a vertically extending air intake section 112 and a horizontally extending first horizontal sub-section, the second channel extends horizontally, and the third channel includes a horizontally extending second horizontal sub-section and an air outlet section 113. The air intake section 112 is connected to one end of the second channel through the first horizontal sub-section, and the air outlet section 113 is connected to the other end of the second channel through the second horizontal sub-section. The first horizontal sub-section, the second channel, and the second horizontal sub-section are connected to form a horizontal section 111.

[0045] According to some embodiments of the present invention, the filter element 114 includes a main body 1142 and a filter portion 1143. The main body 1142 is annular and defines a filter channel 1144. The filter channel 1144 communicates with the exhaust passage 11. The filter portion 1143 is disposed on the main body 1142 and is located at the downstream end of the filter channel 1144. Filter holes 1141 are formed in the filter portion 1143. In other words, when airflow in the exhaust passage 11 located above the filter element 114 flows through the filter element 114, it first enters the filter channel 1144, then passes through the multiple filter holes 1141 in the filter portion 1143, and flows to the downstream side of the filter element 114. Among them, by setting the main body 1142, the structural strength of the filter part 1143 can be enhanced, making the filter part 1143 not easy to deform, so as to ensure the filtering effect of the filter part 1143. In addition, the overall structure of the filter element 114 can be made more three-dimensional, which is convenient for the installation of the filter element 114 compared with the sheet structure, so as to improve the assembly efficiency of the pressure reducer structure 10.

[0046] According to some embodiments of the present invention, the pressure reducer structure 10 further includes an air duct 3. The gas storage structure 20 is formed with a gas outlet 220 located at the bottom of the gas storage chamber 210 and in communication with the gas storage chamber 210. The inlet of the exhaust passage 11 is located within the gas outlet 220. One end of the air duct 3 is plugged into the inlet of the exhaust passage 11, and the other end of the air duct 3 is adapted to extend upward into the gas storage chamber 210. In other words, the upper end of the air duct 3 is higher than the gas outlet 220. It is understood that when the gas storage structure 20 outputs gas through the pressure reducer structure 10, the gas pressure within the gas storage chamber 210 also decreases, and water droplets may condense within the gas storage chamber 210 due to the reduction in pressure and temperature. Therefore, by setting the upper end of the air duct 3 higher than the gas outlet 220, the gas in the air storage chamber 210 can enter the exhaust channel 11 through the air duct 3 and be discharged normally. The water droplets condensed in the air storage chamber 210 converge toward the gas outlet 220 under the action of their own weight and are located on the outer side of the air duct 3, thereby preventing the water droplets condensed in the air storage chamber 210 from entering the exhaust channel 11, thereby reducing the amount of water in the exhaust channel 11, thereby reducing the risk of water entering the air pressure sensor 2 and causing damage to the air pressure sensor 2.

[0047] The following describes a gas storage device 100 according to an embodiment of the second aspect of the present invention with reference to the accompanying drawings.

[0048] The gas storage device 100 according to the second embodiment of the present invention includes: a pressure reducer structure 10 .

[0049] According to the gas storage device 100 of the second embodiment of the present invention, the installation port 122 is arranged above the connecting port 121, thereby ensuring that the gas needs to flow upward after flowing from the exhaust channel 11 into the detection channel 12 and flowing to the air pressure sensor 2. Taking into account the effect of gravity, the probability of water droplets condensed by the pressure reducer structure 10 when reducing the pressure and cooling the gas and flowing upward into the air pressure sensor 2, causing damage to the air pressure sensor 2, is reduced, the service life and detection accuracy of the air pressure sensor 2 are improved, and the real-time monitoring of the air supply pressure by the pressure reducer structure 10 is guaranteed.

[0050] In a specific example, the gas storage device 100 further includes a gas storage structure 20 , which is a gas cylinder. The gas outlet 220 of the gas cylinder is located at the bottom of the gas cylinder.

[0051] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0053] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pressure reducer structure for a gas storage structure, characterized in that: The gas storage structure is formed with a gas storage cavity, and the pressure reducer structure includes: A pressure reducer body, wherein a communicating exhaust channel and a detection channel are formed in the pressure reducer body, the exhaust channel is adapted to communicate with the gas storage chamber, one end of the detection channel communicating with the exhaust channel is formed as a communicating port, and the other end of the detection channel is formed as a mounting port, the mounting port being located above the communicating port; An air pressure sensor is arranged at the installation opening.

2. The pressure reducer structure according to claim 1, characterized in that: The detection channel extends upward in a direction away from the communication port; and / or the detection channel is straight.

3. The pressure reducer structure according to claim 1, characterized in that: The exhaust passage at least includes a horizontal section extending in a horizontal direction, and the communication port is formed on an inner top wall of the horizontal section.

4. The pressure reducer structure according to claim 3, characterized in that: The exhaust channel also includes an air inlet section and an air outlet section. The air inlet section is connected to the air outlet section through the horizontal section. The end of the air inlet section away from the horizontal section is suitable for connecting with the air storage chamber. The connecting port and the air outlet section are both provided at the end of the horizontal section away from the air inlet section.

5. The pressure reducer structure according to claim 1, characterized in that: A filter is provided in the exhaust passage. The filter is formed with filter holes extending along the gas direction. The filter is located on the upstream side of the communication port.

6. The pressure reducer structure according to claim 5, characterized in that: The filter element is disposed adjacent to the communication port.

7. The pressure reducer structure according to claim 6, characterized in that: The pressure reducer body includes a fixing seat, a filter mounting block and a connecting block which are independently formed. The fixing seat is suitable for being fixed to the gas storage structure and forming a first channel. The filter mounting block is arranged on the fixing seat and forms a second channel. The connecting block is arranged on the filter mounting block and forms a third channel. The first channel, the second channel and the third channel together constitute the exhaust channel. The inner circumferential surface of the second channel near one end of the third channel is formed with a mounting groove, and the filter is installed in the mounting groove.

8. The pressure reducer structure according to claim 5, characterized in that: The filter element includes a main body and a filter part. The main body is annular and forms a filter channel. The filter channel is connected to the exhaust channel. The filter part is arranged on the main body and is located at the downstream end of the filter channel. The filter hole is formed on the filter part.

9. The pressure reducer structure according to claim 1, characterized in that: It also includes an air guide tube, the air storage structure is formed with a gas outlet located at the bottom of the air storage cavity and connected to the air storage cavity, the inlet of the exhaust channel is located in the gas outlet, one end of the air guide tube is inserted into the inlet of the exhaust channel, and the other end of the air guide tube is suitable for extending upward into the air storage cavity.

10. A gas storage device, characterized in that: include: The pressure reducer structure according to any one of claims 1 to 9.

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