Single-path gas control device

Abstract

The utility model relates to the field of gas conveying control, and discloses a single-path gas control device which comprises a collecting pipeline, a filter, a first valve, a pressure reducing valve, a second valve and a gas mass flow meter are sequentially installed on the collecting pipeline in the gas flow direction, and pressure gauges are arranged on the left side and the right side of the pressure reducing valve and fixedly installed on the collecting pipeline. One end of the collecting pipeline is provided with air, the other end of the collecting pipeline is communicated with one end of the first conveying pipeline and one end of the second conveying pipeline, the other end of the first conveying pipeline and the other end of the second conveying pipeline are jointly communicated with one end of the air supply pipeline, the first conveying pipeline is provided with a third valve, and the second conveying pipeline is sequentially provided with a fourth valve and a preheater in the air flow direction. And the preheater sleeves the outer wall of the conveying pipeline II. According to the utility model, the pressure reducing valve and the pressure gauge are matched for use, so that the stability and the controllability of gas pressure are ensured, and the gas mass flow meter provides accurate flow measurement, thereby being beneficial to realizing accurate control of gas flow.

Description

Technical Field

[0001] This utility model relates to the field of gas transport control, specifically a single-channel gas control device. Background Technology

[0002] In gas reactions, gas flow control is necessary, and some gas reactions require preheating and reaction with other gases or liquids. Current gas control devices are limited in function and cannot simultaneously handle both gas delivery and heating. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, this utility model provides a single-channel gas control device.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A single-channel gas control device includes a collection pipeline. The left end of the collection pipeline is connected to a gas source. From the left end to the right end of the collection pipeline, a filter, valve one, a pressure reducing valve, valve two, and a gas mass flow meter are installed in sequence. Pressure gauges are installed on both sides of the pressure reducing valve and are located on the collection pipeline. The right end of the collection pipeline is connected to one end of delivery pipeline one and one end of delivery pipeline two. The other ends of delivery pipeline one and delivery pipeline two are connected to one end of the gas delivery pipeline. Valve three is installed on delivery pipeline one. Valve four and a preheater are installed on delivery pipeline two from left to right in sequence. The preheater is fitted onto the outer wall of delivery pipeline two. A check valve is installed on the gas delivery pipeline, allowing gas to flow from left to right.

[0006] The preheater is an electric heater.

[0007] The beneficial effects of this utility model are:

[0008] This invention ensures the stability and controllability of gas pressure through the combined use of a pressure reducing valve and a pressure gauge. The gas mass flow meter provides accurate flow measurement, which helps to achieve precise control of gas flow. The filter effectively removes impurities and particulate matter from the gas, protecting downstream equipment and the progress of chemical reactions.

[0009] It simultaneously serves the functions of conveying and heating gas. By selectively opening valves three and four, the gas delivery path can be flexibly selected to meet different needs. The preheater allows the gas to be preheated before entering the gas delivery pipeline, thus meeting specific application requirements. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] The specific reference numerals in all the attached drawings are as follows: 1. Acquisition pipeline; 2. Filter; 3. Valve 1; 4. Pressure reducing valve; 5. Pressure gauge; 6. Valve 2; 7. Gas mass flow meter; 8. Delivery pipeline 1; 9. Delivery pipeline 2; 10. Valve 3; 11. Valve 4; 12. Preheater; 13. Gas delivery pipeline; 14. Check valve. Detailed Implementation

[0012] like Figure 1 As shown: A single-channel gas control device includes a collection pipeline 1. The left end of the collection pipeline 1 is connected to a gas source. From the left end to the right end of the collection pipeline 1, a filter 2, a valve 1 3, a pressure reducing valve 4, a valve 2 6, and a gas mass flow meter 7 are installed in sequence. Pressure gauges 5 are installed on both the left and right sides of the pressure reducing valve 4. The pressure gauges 5 are installed on the collection pipeline 1. The right end of the collection pipeline 1 is connected to one end of the first delivery pipeline 8 and one end of the second delivery pipeline 9. The other ends of the first delivery pipeline 8 and the second delivery pipeline 9 are connected to one end of the gas delivery pipeline 13. A valve 3 10 is installed on the first delivery pipeline 8. A valve 4 11 and a preheater 12 are installed on the second delivery pipeline 9 from left to right in sequence. The preheater 12 is sleeved on the outer wall of the second delivery pipeline 9. A one-way valve 14 is installed on the gas delivery pipeline 13. The one-way valve 14 allows gas to flow from left to right.

[0013] The preheater 12 is an electric heater.

[0014] When it is necessary to control the gas flow, first ensure that valve 3 and valve 6 are in the open position.

[0015] The gas enters from one end of the collection pipeline 1 and first passes through filter 2, where impurities and particulate matter in the gas are effectively removed to protect downstream equipment from damage.

[0016] Next, the gas passes through the pressure reducing valve 4, which is used to regulate the gas pressure and ensure the stability and controllability of the gas pressure. Pressure gauges 5 are installed on both the left and right sides of the pressure reducing valve 4 to monitor the gas pressure in real time.

[0017] The gas continues to flow, passing through the gas mass flow meter 7, which provides accurate flow measurement and helps to achieve precise control of gas flow.

[0018] If gas needs to enter the gas supply line 13 directly, valve 3 10 can be opened. At this time, the gas will flow along the delivery line 8 and enter the gas supply line 13 directly.

[0019] If preheating of the gas is required, valve 11 can be opened, and the gas will flow along pipeline 9, be heated by preheater 12, and then enter gas delivery pipeline 13.

[0020] Regardless of the path the gas takes, it will eventually converge in the gas supply line 13. The gas supply line 13 is equipped with a one-way valve 14, the opening of which faces the gas outlet direction, effectively preventing gas backflow and leakage, and improving the safety of the system.

[0021] This utility model only protects the mechanical parts; the functions implemented by the software control part are not within the scope of protection of this utility model.

Claims

1. A single path gas control device characterized by, The application relates to a gas collecting and conveying device, which comprises a collecting pipeline (1), a filter (2), a valve (3), a pressure reducing valve (4), a valve (6), a gas mass flow meter (7), pressure gauges (5) arranged on the left and right sides of the pressure reducing valve (4), a conveying pipeline (8) and a conveying pipeline (9), and a gas conveying pipeline (13). The left end of the collecting pipeline (1) is communicated with a gas source, and the left end of the collecting pipeline (1) is sequentially provided with the filter (2), the valve (3), the pressure reducing valve (4), the valve (6) and the gas mass flow meter (7). The right end of the collecting pipeline (1) is communicated with one end of the conveying pipeline (8) and one end of the conveying pipeline (9). The other ends of the conveying pipeline (8) and the conveying pipeline (9) are communicated with one end of the gas conveying pipeline (13). The valve (10) is arranged on the conveying pipeline (8). The valve (4), the valve (6), the valve (10) and the valve (11) are all electromagnetic valves. The valve (11) and a pre-heater (12) are sequentially arranged on the conveying pipeline (9) from left to right. The pre-heater (12) is sleeved on the outer wall of the conveying pipeline (9). The one-way valve (14) is arranged on the gas conveying pipeline (13) and allows gas to flow from left to right.

2. The single-path gas control device according to claim 1, characterized by The pre-heater (12) is an electric heater.

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