Gas pressure regulating equipment for laboratory

Abstract

The utility model belongs to the technical field of gas pressure regulating equipment, and particularly discloses gas pressure regulating equipment for a laboratory, which comprises a main pipeline, branch pipelines are communicated with two ends of the main pipeline, and a pressure stabilizing component is arranged at one end of the main pipeline; the pressure stabilizing assembly comprises a pressure stabilizing cavity, the pressure stabilizing cavity is communicated with one end of the main pipeline, an annular base is arranged in the pressure stabilizing cavity, a spring is arranged at one end of the annular base, and a diaphragm is arranged at the end, away from the annular base, of the spring. When gas enters the pressure stabilizing cavity through the gas inlet of the main pipeline, gas pressure acts on the diaphragm, the diaphragm compresses the spring, the elastic force of the spring plays a buffering role, further rising of the gas pressure is limited, the through holes and the micropores formed in the diaphragm allow the gas to pass through, the through holes can ensure that the gas passes through the pressure stabilizing cavity at a relatively stable flow rate, and the gas pressure is reduced. And the stability of gas supply in the experiment process can be maintained.

Description

Technical Field

[0001] This application relates to the field of gas pressure regulating equipment technology, and more specifically, to a gas pressure regulating device for laboratory use. Background Technology

[0002] In the laboratory, precise and stable gas pressure is crucial for various experiments and research. Different experiments may require gases at different pressures to meet their specific requirements. As scientific research continues to deepen and experimental techniques become increasingly sophisticated, higher demands are being placed on the performance and precision of laboratory gas pressure regulating equipment.

[0003] In fields such as chemical analysis and instrumental analysis, many high-precision experiments require the use of high-purity gases to ensure the accuracy and reliability of analytical results. High-purity gases are usually stored in carbon steel cylinders or aluminum cylinders. When using them, the gas is output from the pipeline to the gas pressure regulating equipment. There is a possibility that the output force is too large at one moment, causing the connecting pipe of the gas pressure regulating equipment to break due to exceeding its bearing capacity. This can have a negative impact on laboratory personnel and equipment. Utility Model Content

[0004] To address the aforementioned problems, this application provides a gas pressure regulating device for laboratory use.

[0005] The gas pressure regulating device for laboratory use provided in this application adopts the following technical solution:

[0006] A gas pressure regulating device for laboratory use includes a main pipeline, with branch pipelines connected to both ends of the main pipeline, and a pressure stabilizing component installed at one end of the main pipeline.

[0007] The voltage stabilizing component includes a voltage stabilizing chamber connected to one end of the main pipeline. The inside of the voltage stabilizing chamber is provided with an annular seat, one end of which is provided with a spring. The end of the spring away from the annular seat is provided with a diaphragm, and the inside of the diaphragm is provided with a through hole.

[0008] Through the above technical solution, the voltage stabilizing component avoids drastic fluctuations in gas flow, which helps to maintain the stability of gas supply during the experiment.

[0009] Furthermore, the membrane has multiple micropores inside, located outside the through-holes.

[0010] Through the above technical solution, the multiple micropores on the membrane can play a certain role in relieving pressure, allowing some gas to flow out through the micropores and alleviating the pressure rise.

[0011] Furthermore, a rubber ring is connected to the outer wall of the diaphragm, and the rubber ring is slidably connected to the inner wall of the voltage stabilizing chamber.

[0012] The above technical solution allows the rubber ring to slide within the pressure stabilizing chamber, ensuring a tight seal.

[0013] Furthermore, the front side of the diaphragm is provided with multiple flow dividers, and the distance between each pair of flow dividers is equal.

[0014] Through the above technical solution, the flow divider evenly disperses the gas, allowing the gas to act more evenly on the diaphragm.

[0015] Furthermore, a metal ring is provided between the spring and the annular seat.

[0016] Furthermore, a second valve is provided at one end of the main pipeline, a second pressure valve is provided at the end of the main pipeline away from the pressure stabilizing chamber, and a pressure sensor is provided at one end of the second pressure valve.

[0017] Through the above technical solution, the pressure sensor can continuously monitor the gas pressure and issue an alarm or trigger the corresponding safety protection mechanism when the pressure exceeds the safety threshold.

[0018] Furthermore, each of the two branch pipes is equipped with a filter at one end, and a first valve is installed at the end of each branch pipe furthest from the filter.

[0019] Furthermore, a first pressure valve is provided between every two filters and the first valve, the main pipeline near the pressure stabilizing chamber is the air inlet, and the main pipeline near the second pressure valve is the air outlet.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] (1) By setting up a pressure stabilizing component, this utility model avoids drastic fluctuations in gas flow rate during gas intake. When gas enters the pressure stabilizing chamber through the gas inlet of the main pipe, the gas pressure acts on the diaphragm, and the diaphragm will compress the spring. The elastic force of the spring will play a buffering role and limit the further increase of gas pressure. At this time, the diaphragm will move towards the annular seat. The through holes and micro holes opened inside the diaphragm allow gas to pass through. The through holes can ensure that the gas passes through at a relatively stable flow rate, which helps to maintain the stability of gas supply during the experiment.

[0022] (2) The flow divider of this utility model disperses the gas evenly, so that the gas acts more evenly on the diaphragm. If the gas pressure increases, the diaphragm compresses the spring under the pressure and moves towards the annular seat. At this time, the rubber ring slides on the inner wall of the pressure stabilizing chamber to ensure the sealing. The multiple micropores on the diaphragm can play a certain role in relieving pressure. Some gas flows out through the micropores to alleviate the pressure rise. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a side view of the present invention;

[0025] Figure 3 This is a partial view of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection structure between the main pipeline and the pressure stabilizing chamber of this utility model;

[0027] Figure 5 This is a partial plan view of the present invention.

[0028] Explanation of reference numerals in the attached diagram: 1. Main pipe; 2. Branch pipe; 3. Filter; 4. First pressure valve; 5. First valve; 6. Second pressure valve; 7. Pressure sensor; 8. Second valve; 9. Pressure regulating chamber; 10. Flow divider; 11. Ring seat; 12. Metal ring; 13. Spring; 14. Diaphragm; 15. Rubber ring. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figures 1-5 A gas pressure regulating device for laboratory use includes a main pipeline 1, with branch pipelines 2 connected to both ends of the main pipeline 1, and a pressure stabilizing component provided at one end of the main pipeline 1.

[0031] The voltage stabilizing assembly includes a voltage stabilizing chamber 9, which is connected to one end of the main pipe 1. An annular seat 11 is provided inside the voltage stabilizing chamber 9. A spring 13 is provided at one end of the annular seat 11. A diaphragm 14 is provided at the end of the spring 13 away from the annular seat 11. A through hole is provided inside the diaphragm 14.

[0032] When gas enters the pressure stabilizing chamber 9 through the inlet of the main pipe 1, the gas pressure acts on the diaphragm 14, which compresses the spring 13. The elastic force of the spring 13 acts as a buffer, limiting the further increase in gas pressure. At this time, the diaphragm 14 moves towards the annular seat 11. The through holes and micropores inside the diaphragm 14 allow gas to pass through. The through holes ensure that the gas passes through at a relatively stable flow rate, avoiding drastic fluctuations in gas flow and helping to maintain the stability of gas supply during the experiment.

[0033] Reference Figures 3-5The diaphragm 14 has multiple micropores inside, which are located outside the through hole. A rubber ring 15 is connected to the outer wall of the diaphragm 14. The rubber ring 15 is slidably connected to the inner wall of the pressure stabilizing chamber 9. Multiple flow dividers 10 are provided on the front side of the diaphragm 14. The distance between each pair of flow dividers 10 is equal. A metal ring 12 is provided between the spring 13 and the annular seat 11.

[0034] When gas enters the pressure stabilizing chamber 9 from the main pipe 1, it first impacts the flow divider 10. The flow divider 10 evenly disperses the gas, making the gas act more evenly on the diaphragm 14. If the gas pressure increases, the diaphragm 14 compresses the spring 13 under pressure and moves towards the annular seat 11. At this time, the rubber ring 15 slides on the inner wall of the pressure stabilizing chamber 9 to ensure sealing. The multiple micropores on the diaphragm 14 can play a certain role in relieving pressure, and some gas flows out through the micropores to alleviate the pressure rise.

[0035] Reference Figures 1-2 One end of the main pipe 1 is equipped with a second valve 8, and the end of the main pipe 1 away from the pressure stabilizing chamber 9 is equipped with a second pressure valve 6. One end of the second pressure valve 6 is equipped with a pressure sensor 7. One end of each of the two branch pipes 2 is equipped with a filter 3, and the end of each of the two branch pipes 2 away from the filter 3 is equipped with a first valve 5. A first pressure valve 4 is provided between every two filters 3 and the first valve 5. The position of the main pipe 1 near the pressure stabilizing chamber 9 is the air inlet, and the position of the main pipe 1 near the second pressure valve 6 is the air outlet.

[0036] First, the device is connected to the gas tank through the inlet of the main pipeline 1. Gas enters the inlet from the gas tank. If the gas does not need to be pressure regulated, the second valve 8 on the main pipeline 1 is opened directly. The gas will pass through the main pipeline 1 and be discharged directly from the outlet without passing through the two branch pipelines 2. During this process, the first valves 5 on the two branch pipelines 2 are closed. When the gas needs to be pressure regulated, the second valve 8 is closed, and the gas cannot be directly transmitted through the main pipeline 1. At this time, the two first valves 5 are opened, and the gas passes through the branch pipeline 2. First, it passes through the filter 3 to filter out impurities, then enters the first pressure valve 4, and then enters the second pressure valve 6 to measure the pressure of the gas at the outlet. Finally, it is discharged from the outlet.

[0037] Pressure sensor 7 can continuously monitor gas pressure and issue an alarm or trigger corresponding safety protection mechanisms when the pressure exceeds a safety threshold. For example, if a malfunction occurs during pressure regulation, causing an abnormal increase in pressure, pressure sensor 7 can detect it in time and notify the operator to take measures, such as closing the first valve 5 and the second valve 8, to prevent equipment damage and safety accidents.

[0038] Working principle: When gas enters the device from the gas tank, if the gas does not require pressure regulation, the second valve 8 on the main pipeline 1 is opened, and the first valves 5 on the two branch pipelines 2 are closed. After entering from the inlet of the main pipeline 1, the gas passes directly through the main pipeline 1 and is discharged from the outlet of the main pipeline 1 near the second pressure valve 6. During this process, the gas does not undergo filtration or pressure regulation. If the gas requires pressure regulation, the second valve 8 is closed, and the two first valves 5 are opened. The gas passes through the branch pipeline 2, first through the filter 3, which filters out impurities in the gas, purifying it. Then, it passes through the first pressure valve 4 for preliminary pressure regulation, and then enters the second pressure valve 6 for further pressure regulation. At the same time, the pressure sensor 7 at one end monitors the pressure of the gas at the outlet. Finally, the gas, after pressure regulation and measurement, is discharged from the outlet of the main pipeline 1 for laboratory use.

[0039] When gas enters the pressure stabilizing chamber 9, it first impacts the flow divider 10, which evenly distributes the gas onto the diaphragm 14. If the gas pressure increases, the diaphragm 14 will compress the spring 13 and move towards the annular seat 11. At this time, the rubber ring 15 slides on the inner wall of the pressure stabilizing chamber 9 to ensure sealing. The micropores on the diaphragm 14 play a pressure relief role, allowing some gas to flow out through the micropores to alleviate the pressure rise. The through-holes ensure that the gas passes through at a relatively stable flow rate to maintain the stability of the gas supply. Furthermore, the pressure sensor 7 continuously monitors the gas pressure. When the pressure exceeds the safety threshold, it will issue an alarm or trigger a safety protection mechanism, such as notifying the operator to close the first valve 5 and the second valve 8, to prevent equipment damage and safety accidents.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gas pressure regulating device for laboratory use, characterized in that, include: The main pipeline (1) is connected to branch pipelines (2) at both ends, and a pressure stabilizing component is provided at one end of the main pipeline (1). The voltage stabilizing assembly includes a voltage stabilizing chamber (9), which is connected to one end of the main pipe (1). The voltage stabilizing chamber (9) is provided with an annular seat (11), and a spring (13) is provided at one end of the annular seat (11). A diaphragm (14) is provided at the end of the spring (13) away from the annular seat (11). A through hole is provided inside the diaphragm (14).

2. A gas pressure regulating device for laboratory use according to claim 1, characterized in that: The membrane (14) has multiple micropores inside, and the multiple micropores are located outside the through hole.

3. A gas pressure regulating device for a laboratory according to claim 1, characterized in that: The outer wall of the diaphragm (14) is connected to a rubber ring (15), which is slidably connected to the inner wall of the pressure stabilizing chamber (9).

4. A gas pressure regulating device for a laboratory according to claim 1, characterized in that: The diaphragm (14) has a plurality of flow dividers (10) on its front side, and the spacing between any two flow dividers (10) is equal.

5. A gas pressure regulating device for a laboratory according to claim 1, characterized in that: A metal ring (12) is provided between the spring (13) and the annular seat (11).

6. A gas pressure regulating device for a laboratory according to claim 1, characterized in that: A second valve (8) is provided at one end of the main pipeline (1), a second pressure valve (6) is provided at the end of the main pipeline (1) away from the pressure stabilizing chamber (9), and a pressure sensor (7) is provided at one end of the second pressure valve (6).

7. A gas pressure regulating device for a laboratory according to claim 1, characterized in that: Each of the two branch pipes (2) is provided with a filter (3) at one end, and a first valve (5) is provided at the end of the two branch pipes (2) away from the filter (3).

8. A gas pressure regulating device for a laboratory according to claim 7, characterized in that: A first pressure valve (4) is provided between each pair of filters (3) and the first valve (5). The main pipe (1) is located near the pressure stabilizing chamber (9) as the air inlet, and the main pipe (1) is located near the second pressure valve (6) as the air outlet.

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