Gas standard substance preparation device

Abstract

The utility model relates to the technical field of gas preparation, and discloses a gas standard substance preparation device which comprises a gas distribution main pipeline and a connecting pipe, a quick release assembly is arranged on the connecting pipe, a safety assembly is arranged on the gas distribution main pipeline, the quick release assembly comprises a mounting block, and an insertion block is movably connected in the mounting block. According to the gas standard substance preparation device, firstly, two pull rods on a mounting block are pulled outwards to the farthest end, a clamping block is straightened to the farthest end along with a sliding block, a spring is compressed, then an insertion block at the top of a gas storage bottle is inserted into a cavity in the mounting block till the top of a connecting base is attached to the bottom of the mounting block, the pull rods are loosened, and under the elastic force action of the spring, the gas storage bottle is fixed to the mounting block. When the gas storage cylinder needs to be disassembled, the pull rod is pulled outwards, the fixing effect of the clamping block on the inserting block is relieved, then the gas storage cylinder is pulled out downwards, quick disassembly can be completed, and the advantage that the gas storage cylinder is convenient to disassemble and assemble is achieved.

Description

Technical Field

[0001] This utility model relates to the field of gas preparation technology, specifically to a gas standard substance preparation device. Background Technology

[0002] The gas standard substance preparation device is used to prepare binary or multi-component mixed standard gases of various inorganic and organic substances that are in gaseous or liquid state at room temperature and pressure. This device can be used as a standard gas source for production departments such as environmental protection, industrial hygiene, scientific research, teaching, chemical industry, petrochemical industry, civil defense, power, transportation, military industry, and mining for quantitative determination, instrument calibration, on-site monitoring and leak detection, new product development, and reaction process control.

[0003] In the existing process of preparing gaseous standard substances, multiple gas storage cylinders are usually required to store different types of gases, and these gases are transported to the preparation device through pipelines for mixing and preparation. However, the existing preparation device often has problems such as complicated operation, poor sealing, and inconvenience in replacing gas storage cylinders when connecting them. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a gas standard substance preparation device to solve the problem mentioned in the background art that the gas storage cylinder is inconvenient to disassemble and assemble during gas preparation.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A gas standard substance preparation device includes a gas distribution main pipeline and a connecting pipe, wherein the connecting pipe is provided with a quick-release component and the gas distribution main pipeline is provided with a safety component;

[0007] The quick-release assembly includes an installation block, an insert block is movably connected inside the installation block, a connecting seat is fixedly connected to the bottom of the insert block, a gas storage bottle is fixedly connected to the bottom of the connecting seat, a slider is slidably connected inside the installation block, a pull rod is fixedly connected to one side of the slider, a spring is fixedly connected to one side of the slider, and a locking block is fixedly connected to the other side of the slider.

[0008] The safety components include a vacuum pump, a pressure gauge is fixedly connected to the main gas distribution line, an exhaust valve is fixedly connected to the main gas distribution line, and a pressure relief valve is fixedly connected to the main gas distribution line.

[0009] Preferably, there are three connecting pipes, which are fixedly connected to the bottom of the gas distribution main pipeline. The three connecting pipes are distributed at equal intervals on the left and right sides, and a one-way valve is fixedly connected to each connecting pipe.

[0010] Preferably, the top of the gas storage cylinder is fixedly connected to a vent pipe, the connecting seat is fixedly connected to the outside of the vent pipe, the vent pipe extends into the inside of the connecting pipe, and the rightmost gas storage cylinder is used to store the prepared gas.

[0011] Preferably, the mounting block is fixedly connected to the outside of the connecting pipe and located below the one-way valve, and the bottom of the mounting block is in contact with the top of the connecting seat.

[0012] Preferably, the mounting block has an clearance hole adapted to the connecting pipe inside, and a cavity is formed inside the mounting block on both sides of the clearance hole, and the other side of the spring is fixedly connected to the inner wall of the cavity.

[0013] Preferably, limit blocks are fixedly connected to both the upper and lower sides of the slider, and a limit groove adapted to the movement trajectory of the limit block is opened inside the mounting block. The limit groove is connected to the cavity, and an anti-slip ring is fixedly connected to the outer side of the pull rod located at the outer end of the mounting block.

[0014] Preferably, the slider has two locking blocks fixedly connected to the side away from the spring, which are symmetrically distributed vertically. The locking block has a slot on the side near the slider, and the size of the slot is adapted to the locking block.

[0015] Compared with the prior art, the beneficial effects of this utility model's gas standard substance preparation device are:

[0016] First, pull the two levers on the mounting block outwards to their furthest points. The locking block will be pulled straight to its furthest point along with the slider, and the spring will be compressed. Then, insert the insert block on top of the gas cylinder into the chamber inside the mounting block until the top of the connector is flush with the bottom of the mounting block. Release the levers, and under the elastic force of the spring, the locking block will spring into the insert block, achieving a quick connection between the gas cylinder and the connecting pipe. When it is necessary to remove the gas cylinder, pull the lever outwards to release the locking block's fixing effect on the insert block, and then pull the gas cylinder downwards to complete the quick disassembly, achieving the benefit of easy disassembly and assembly of the gas cylinder.

[0017] Secondly, the air in the gas distribution main pipeline is discharged through the exhaust valve, and then the gas is configured in the gas distribution main pipeline according to the needs. The vacuum pump draws the gas distribution main pipeline into a vacuum, and the pressure gauge monitors the gas pressure in the gas distribution main pipeline in real time. If a high pressure occurs in the gas distribution main pipeline during the gas distribution process, the gas in the gas distribution main pipeline can be discharged through the pressure relief valve to prevent the gas distribution main pipeline from exploding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of another axial integral structure of the present invention;

[0020] Figure 3 This is an exploded view of the connection between the connecting pipe and the quick-release assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the quick-release assembly and related parts of this utility model;

[0022] Figure 5 This is a cross-sectional view of the mounting block of this utility model.

[0023] The components include: 1. Gas distribution main pipeline; 2. Connecting pipe; 201. Check valve; 3. Quick-release assembly; 301. Mounting block; 302. Insert block; 303. Connecting seat; 304. Gas cylinder; 305. Slider; 306. Pull rod; 307. Spring; 308. Locking block; 4. Safety components; 401. Vacuum pump; 402. Pressure gauge; 403. Exhaust valve; 404. Pressure relief valve. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0025] Please see Figure 1-5 A gas standard substance preparation device includes a gas distribution main line 1 and a connecting pipe 2. The connecting pipe 2 is provided with a quick-release component 3, and the gas distribution main line 1 is provided with a safety component 4.

[0026] The quick-release assembly 3 includes a mounting block 301, an insert block 302 is movably connected inside the mounting block 301, a connecting seat 303 is fixedly connected to the bottom of the insert block 302, a gas cylinder 304 is fixedly connected to the bottom of the connecting seat 303, a slider 305 is slidably connected inside the mounting block 301, a pull rod 306 is fixedly connected to one side of the slider 305, a spring 307 is fixedly connected to one side of the slider 305, and a locking block 308 is fixedly connected to the other side of the slider 305.

[0027] Safety component 4 includes a vacuum pump 401, a pressure gauge 402 fixedly connected to the gas distribution main line 1, an exhaust valve 403 fixedly connected to the gas distribution main line 1, and a pressure relief valve 404 fixedly connected to the gas distribution main line 1.

[0028] Specifically, there are three connecting pipes 2, which are fixedly connected to the bottom of the gas distribution main pipeline 1. The three connecting pipes 2 are distributed at equal intervals on the left and right, and a one-way valve 201 is fixedly connected to the connecting pipe 2.

[0029] Through the above technical solution, by setting three connecting pipes 2 evenly spaced at the bottom of the main gas distribution pipeline 1, and one-way valves 201 fixedly connected to the connecting pipes 2, the simultaneous connection and independent control of multiple gas storage cylinders 304 are realized. This design improves the flexibility and efficiency of gas standard substance preparation, allowing different types of gases to be conveniently prepared and transported through their respective connecting pipes 2. The one-way valves 201 ensure the one-way flow of gas and prevent contamination or confusion caused by gas backflow.

[0030] Specifically, a vent pipe is fixedly connected to the top of the gas cylinder 304, and a connecting seat 303 is fixedly connected to the outside of the vent pipe. The vent pipe extends into the inside of the connecting pipe 2, and the rightmost gas cylinder 304 is used to store the prepared gas.

[0031] Through the above technical solution, the design of the vent pipe and connecting seat 303 fixedly connected to the top of the gas cylinder 304 allows the gas cylinder 304 to be securely connected to the connecting pipe 2, and the gas is transported to the gas distribution main pipeline 1 through the vent pipe. The rightmost gas cylinder 304 is used to store the prepared gas. This design facilitates the final mixing and output of the gas, and improves the accuracy and convenience of preparation.

[0032] Specifically, the mounting block 301 is fixedly connected to the outside of the connecting pipe 2 and located below the one-way valve 201, with the bottom of the mounting block 301 fitting against the top of the connecting seat 303.

[0033] Through the above technical solution, the mounting block 301 is fixedly connected to the outside of the connecting pipe 2 and located below the one-way valve 201, and fits against the top of the connecting seat 303. This design ensures the stability and sealing of the quick-release assembly 3. When replacing the gas cylinder 304, it can be easily done by simply operating the quick-release assembly 3, without disassembling the connecting pipe 2 or affecting the working status of other components.

[0034] Specifically, the mounting block 301 has an clearance hole that matches the connecting pipe 2 inside. The mounting block 301 has a cavity on both sides of the clearance hole inside. The other side of the spring 307 is fixedly connected to the inner wall of the cavity.

[0035] Through the above technical solution, the clearance hole inside the mounting block 301 and the chambers connected to both sides of the clearance hole provide sufficient space and support for components such as the insertion block 302, the slider 305, and the spring 307. The other side of the spring 307 is fixedly connected to the inner wall of the chamber, ensuring that the spring 307 can stably extend and retract when subjected to external force, thereby driving the movement of the slider 305 and the locking block 308, and realizing the locking and unlocking functions of the quick-release assembly 3.

[0036] Specifically, limit blocks are fixedly connected to both the upper and lower sides of the slider 305, and a limit groove adapted to the movement trajectory of the limit block is opened inside the mounting block 301. The limit groove is connected to the cavity, and an anti-slip ring is fixedly connected to the outer side of the pull rod 306 at one end of the mounting block 301.

[0037] Through the above technical solution, the limiting blocks fixedly connected to the upper and lower sides of the slider 305 and the limiting groove opened inside the mounting block 301 restrict the movement trajectory of the slider 305, preventing the slider 305 from deviating or jamming during movement. The anti-slip ring fixedly connected to the outer side of the pull rod 306 at one end of the mounting block 301 improves the comfort and safety of user operation and prevents misoperation caused by slipping.

[0038] Specifically, two locking blocks 308 are fixedly connected to the side of the slider 305 away from the spring 307 and are symmetrically distributed vertically. The side of the insert block 302 near the slider 305 has a slot, the size of which is adapted to the locking block 308.

[0039] Through the above technical solution, two locking blocks 308 are fixedly connected to the side of the slider 305 away from the spring 307 and are symmetrically distributed vertically. The insertion block 302 has a slot of a size that matches the locking blocks 308 on the side close to the slider 305. This achieves a firm lock between the insertion block 302 and the mounting block 301. This design enables the quick-release assembly 3 to maintain sufficient stability and sealing in the locked state, preventing gas leakage and contamination.

[0040] In use, firstly, the air in the main gas distribution pipeline 1 is purged through the exhaust valve 403. Then, according to the needs, the required gas standard substance is loaded into the two gas cylinders 304 on the left. Next, the two pull rods 306 on the mounting block 301 are pulled outward to their farthest ends. The locking block 308 is pulled to its farthest end along with the slider 305, and the spring 307 is compressed. Then, the insert block 302 on the top of the gas cylinder 304 is inserted into the chamber inside the mounting block 301 until the top of the connecting seat 303 is in contact with the bottom of the mounting block 301. Release the pull rods 306. Under the elastic force of the spring 307, the locking block 308 can be springed into the insert block 302, realizing the connection of the three gas cylinders 304. 04. Quickly connect to the connecting pipe 2, then open the two one-way valves 201 on the left to introduce gas into the gas distribution main pipeline 1. The vacuum pump 401 will evacuate the gas distribution main pipeline 1 to a vacuum. The pressure in the gas distribution main pipeline 1 will be monitored in real time according to the pressure gauge 402. After the gas is distributed, open the one-way valve 201 on the right to introduce gas into the gas storage cylinder 304. Pull the lever 306 outward to release the fixing effect of the locking block 308 on the insertion block 302. Then pull the gas storage cylinder 304 downward to complete the quick disassembly. If high pressure occurs in the gas distribution main pipeline 1 during the gas distribution process, the gas inside will be discharged through the pressure relief valve 404 to prevent the gas distribution main pipeline 1 from exploding.

[0041] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas standard material preparation device comprising a gas preparation main pipeline (1) and a connecting pipe (2), characterized in that: The connecting pipe (2) is provided with a quick-release assembly (3), and the gas distribution main pipeline (1) is provided with a safety assembly (4); The quick-release assembly (3) includes a mounting block (301), an insert block (302) is movably connected inside the mounting block (301), a connecting seat (303) is fixedly connected to the bottom of the insert block (302), a gas storage bottle (304) is fixedly connected to the bottom of the connecting seat (303), a slider (305) is slidably connected inside the mounting block (301), a pull rod (306) is fixedly connected to one side of the slider (305), a spring (307) is fixedly connected to one side of the slider (305), and a locking block (308) is fixedly connected to the other side of the slider (305). The safety component (4) includes a vacuum pump (401), a pressure gauge (402) is fixedly connected to the gas distribution main pipeline (1), an exhaust valve (403) is fixedly connected to the gas distribution main pipeline (1), and a pressure relief valve (404) is fixedly connected to the gas distribution main pipeline (1).

2. The apparatus for preparing a gas reference material according to claim 1, wherein: The number of the connecting pipes (2) is three and they are fixedly connected to the bottom of the gas distribution main pipeline (1). The three connecting pipes (2) are distributed at equal intervals on the left and right sides, and a one-way valve (201) is fixedly connected to the connecting pipes (2).

3. The apparatus for preparing a gas reference material according to claim 2, wherein: The top of the gas cylinder (304) is fixedly connected to a vent pipe, and the connecting seat (303) is fixedly connected to the outside of the vent pipe. The vent pipe extends into the inside of the connecting pipe (2). The rightmost gas cylinder (304) is used to store the prepared gas.

4. The apparatus for preparing a gas reference material according to claim 3, wherein: The mounting block (301) is fixedly connected to the outside of the connecting pipe (2) and located below the one-way valve (201). The bottom of the mounting block (301) is in contact with the top of the connecting seat (303).

5. The apparatus for preparing a gas reference material according to claim 1, wherein: The mounting block (301) has an clearance hole that is compatible with the connecting pipe (2) inside. The mounting block (301) has a cavity on both sides of the clearance hole inside. The other side of the spring (307) is fixedly connected to the inner wall of the cavity.

6. The apparatus for preparing a gas reference material according to claim 5, wherein: Limiting blocks are fixedly connected to both the upper and lower sides of the slider (305). The mounting block (301) has a limiting groove inside that matches the movement trajectory of the limiting block. The limiting groove is connected to the cavity. An anti-slip ring is fixedly connected to the outer side of the pull rod (306) at one end of the mounting block (301).

7. The apparatus of claim 1, wherein: Two locking blocks (308) are fixedly connected to the side of the slider (305) away from the spring (307) and are symmetrically distributed vertically. The side of the insert block (302) near the slider (305) has a slot, and the size of the slot is adapted to the locking block (308).

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