A gas-air mixing device

Abstract

The utility model discloses a kind of gas air mixing equipment, it is related to gas premixing technical field, including mixing pipe component, the mixing pipe component is used to mix gas, air;The mixing pipe component includes mixing pipe body, the one end of the mixing pipe body close to air inlet pipe is fixedly installed gas distribution pipe, the one end of the gas distribution pipe at the outside of mixing pipe body is fixedly connected with air inlet pipe, there are two symmetrical square holes on the pipe wall of the gas distribution pipe in the mixing pipe body, the square hole on the gas distribution pipe is used to diffuse the flow direction of gas after entering mixing pipe body, the device is differentiated to gas by setting gas distribution pipe in mixing pipe body, let gas can quickly and evenly enter mixing pipe body, not only can prevent the accumulation of gas at gas distribution pipe, but also can improve the mixing effect of gas and air in mixing pipe body.

Description

Technical Field

[0001] This utility model relates to the field of gas premixing technology, specifically a gas-air mixing device. Background Technology

[0002] In the field of gas applications, efficient and uniform mixing of gas and air is crucial for the stability and efficiency of the combustion process. Traditional gas premixing equipment often faces many challenges in achieving this goal, such as uneven mixing, low mixing efficiency, and gas accumulation. These problems not only affect combustion quality but may also lead to energy waste and environmental pollution. Therefore, developing a device that can achieve rapid and uniform mixing of gas and air has become an unresolved issue in the industry.

[0003] With advancements in technology and increasingly stringent environmental protection requirements, the market is placing higher demands on the technical performance of gas premixing equipment. An ideal gas-air mixing device should, while ensuring safety, improve mixing efficiency through optimized design, ensuring full contact and uniform mixing of gas and air, thereby increasing combustion efficiency and reducing harmful emissions. Furthermore, the equipment should possess good stability and durability to adapt to the needs of various operating conditions. Summary of the Invention

[0004] To address the aforementioned problems, this utility model aims to provide a novel gas-air mixing device. This device, through innovative structural design, solves the problems of uneven mixing and low efficiency inherent in traditional equipment. Specifically, this device incorporates a gas distribution pipe within the mixing tube to differentiate the gas flow, allowing the gas to enter the mixing environment more quickly and evenly. Simultaneously, by precisely controlling the flow direction of the air pipe, air and gas flow in the same direction during mixing, further promoting uniform mixing and effectively preventing gas accumulation in localized areas. These improvements work together to significantly enhance the gas-air mixing effect and overall mixing efficiency, providing strong support for a highly efficient and clean combustion process.

[0005] A gas-air mixing device includes an inlet valve, a gas meter fixedly installed at one end of the inlet valve, and the other end of the inlet valve for connecting to an external gas pipeline. The inlet valve is used to control the flow rate of gas entering the device, the gas meter is used to monitor the gas flow rate, and an inlet pipe is provided at the end of the gas meter away from the inlet valve. The other end of the inlet pipe is connected to a mixing pipe assembly, which is used to mix gas and air.

[0006] Furthermore, the mixing pipe assembly includes a mixing pipe body, with a gas distribution pipe fixedly installed at one end of the mixing pipe body near the intake pipe. The end of the gas distribution pipe outside the mixing pipe body is fixedly connected to the intake pipe. The gas distribution pipe has two symmetrically arranged square openings on its pipe wall inside the mixing pipe body. The square openings on the gas distribution pipe are used to diffuse the flow direction of the fuel gas after it enters the mixing pipe body.

[0007] Furthermore, an air pipe is fixedly installed at one end of the mixing pipe near the intake pipe. The air pipe has a 90-degree bend to change the direction of airflow, and one end of the air pipe faces the end of the mixing pipe away from the intake pipe.

[0008] Furthermore, a one-way valve is fixedly installed at one end of the air pipe outside the mixing pipe, and the one-way valve is connected to an external high-pressure air supply pipe.

[0009] Furthermore, the air pipe is located on one side of any one of the square openings of the air distribution pipe.

[0010] Furthermore, a gas mixing structure is fixedly installed inside the mixing pipe. The gas mixing structure is used to mix air and fuel gas. The internal structure of the gas mixing structure is mainly used to ensure that the fuel gas input into the gas distribution pipe is fully mixed with the air.

[0011] Furthermore, a plurality of diverter pipes are fixedly installed at the end of the mixing tube away from the air inlet pipe. The diverter pipes are connected to an external gas supply pipe and are used to uniformly output the mixed gas in the mixing tube to the outside of the device.

[0012] The beneficial effects of this invention compared with the prior art are: (1) This device separates the gas by setting a gas distribution pipe in the mixing tube, so that the gas can enter the mixing tube quickly and evenly. This not only prevents the accumulation of gas at the gas distribution pipe, but also improves the mixing effect of gas and air in the mixing tube.

[0013] (2) This device controls the flow direction of air entering the mixing tube through the air pipe, so that the gas and air are evenly injected into the gas mixing structure for mixing. At the same time, the air flow direction entering the mixing tube through the air pipe is the same as the gas flow direction, which avoids the accumulation of gas at the gas distribution pipe and improves the mixing efficiency of this device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the hybrid tube assembly structure of this utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of the hybrid pipe and the diversion pipe of this utility model.

[0017] Figure 4 This is a cross-sectional structural diagram of the mixing pipe, gas distribution pipe, air pipe, and one-way valve of this utility model.

[0018] Figure 5 This is a cross-sectional structural diagram of the hybrid tube, gas distribution tube, and air tube of this utility model.

[0019] Figure 6 This is a schematic diagram of the gas distribution pipe structure of this utility model.

[0020] Reference numerals: 10-Mixing pipe assembly; 20-Inlet pipe; 30-Gas meter; 40-Inlet valve; 101-Mixing pipe body; 102-Gas mixing structure; 103-Diverter pipe; 104-Gas distribution pipe; 105-Air pipe; 106-One-way valve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] like Figure 1 , Figure 2 As shown, a gas-air mixing device includes an inlet valve 40, a gas meter 30 fixedly installed at one end of the inlet valve 40, and the other end of the inlet valve 40 for connection to an external gas pipeline. The inlet valve 40 is used to control the flow rate of gas entering the device, the gas meter 30 is used to monitor the gas flow rate, and an inlet pipe 20 is provided at the end of the gas meter 30 away from the inlet valve 40. The other end of the inlet pipe 20 is connected to a mixing pipe assembly 10, which is used to mix gas and air.

[0023] like Figures 1 to 6As shown, the mixing pipe assembly 10 includes a mixing pipe body 101. A gas distribution pipe 104 is fixedly installed at one end of the mixing pipe body 101 near the intake pipe 20. The end of the gas distribution pipe 104 outside the mixing pipe body 101 is fixedly connected to the intake pipe 20. The gas distribution pipe 104 has two symmetrically arranged square openings on its inner wall within the mixing pipe body 101. These square openings diffuse the flow direction of the fuel gas after it enters the mixing pipe body 101. An air pipe 105 is fixedly installed at one end of the mixing pipe body 101 near the intake pipe 20. 5 is a 90-degree bend used to change the direction of airflow. One end of the air pipe 105 faces the end of the mixing pipe 101 away from the air inlet pipe 20. A one-way valve 106 is fixedly installed at the end of the air pipe 105 outside the mixing pipe 101. The one-way valve 106 is connected to the external high-pressure air supply pipe. The one-way valve 106 is connected to the air pipe 105 by a thread. The air pipe 105 is located on one side of any square opening of the gas distribution pipe 104. The one-way valve 106 can also prevent gas from leaking from 106 into the external high-pressure air supply pipe, thereby improving safety performance.

[0024] like Figures 2 to 4 As shown, a gas mixing structure 102 is fixedly installed inside the mixing tube 101. The gas mixing structure 102 is used to mix air and fuel gas. The structure of the gas mixing structure 102 can adopt the internal structure of a static mixer. The internal structure of the gas mixing structure 102 is mainly used to ensure that the fuel gas input in the gas distribution pipe 104 and the air input in the air pipe 105 are fully mixed. Multiple diversion pipes 103 are fixedly installed at the end of the mixing tube 101 away from the air inlet pipe 20. The diversion pipes 103 are connected to the external gas supply pipe. The diversion pipes 103 are used to uniformly output the mixed gas inside the mixing tube 101 to the outside of this device.

[0025] During operation, the gas is controlled by the inlet valve 40. After entering the gas meter 30 through the inlet valve 40, the gas enters the mixing pipe assembly 10 through the inlet pipe 20. The mixed gas then flows out of the mixing pipe assembly 10 from the other end. When the gas enters the mixing pipe assembly 10 through the inlet pipe 20, it is separated by the gas distribution pipe 104 inside the mixing pipe assembly 10 before entering the gas mixing structure 102. The external device also supplies air into the mixing pipe 101 through the one-way valve 106 and the air pipe 105. When the air is supplied into the mixing pipe 101, it is necessary to ensure that the airflow direction is the same as the gas flow direction. The direction of airflow is consistent, meaning that the gas and air flow directions are both from the end of the mixing tube 101 near the intake pipe 20 to the end of the mixing tube 101 away from the intake pipe 20. This ensures that the gas and air can be fully mixed through the gas mixing structure 102. The process of full mixing in the gas mixing structure 102 is mainly achieved by interfering with the airflow path, causing the gas and air entering the gas mixing structure 102 to separate and merge their paths, thereby achieving the mixing of air and gas. After the air is mixed, the gas will flow through the gas mixing structure 102 to the end of the mixing tube 101 where the diverter pipe 103 is provided, and then flow out of the device from the diverter pipe 103.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A gas-air mixing device, comprising an inlet valve (40), characterized in that: A gas meter (30) is fixedly installed at one end of the air inlet valve (40), and the other end of the air inlet valve (40) is used to connect to an external gas pipeline. The air inlet valve (40) is used to control the flow rate of gas entering the device. The gas meter (30) is used to monitor the gas flow rate. An air inlet pipe (20) is provided at the end of the gas meter (30) away from the air inlet valve (40). The other end of the air inlet pipe (20) is connected to the mixing pipe assembly (10). The mixing pipe assembly (10) is used to mix gas and air. The mixing pipe assembly (10) includes a mixing pipe body (101). A gas distribution pipe (104) is fixedly installed at one end of the mixing pipe body (101) near the intake pipe (20). The end of the gas distribution pipe (104) outside the mixing pipe body (101) is fixedly connected to the intake pipe (20). There are two symmetrically arranged square openings on the pipe wall inside the mixing pipe body (101) of the gas distribution pipe (104). The square openings on the gas distribution pipe (104) are used to diffuse the flow direction of the gas after it enters the mixing pipe body (101).

2. The gas-air mixing device according to claim 1, characterized in that: An air pipe (105) is fixedly installed at one end of the mixing pipe (101) near the intake pipe (20). The air pipe (105) is a 90-degree bend used to change the direction of airflow. One end of the air pipe (105) faces the end of the mixing pipe (101) away from the intake pipe (20).

3. The gas-air mixing device according to claim 2, characterized in that: A one-way valve (106) is fixedly installed at one end of the air pipe (105) outside the mixing pipe (101), and the one-way valve (106) is connected to an external high-pressure air supply pipe.

4. The gas-air mixing device according to claim 2, characterized in that: The air pipe (105) is located on one side of any square opening of the air distribution pipe (104).

5. The gas-air mixing device according to claim 1, characterized in that: A gas mixing structure (102) is fixedly installed inside the mixing pipe (101). The gas mixing structure (102) is used to mix air and fuel gas. The internal structure of the gas mixing structure (102) is mainly used to ensure that the fuel gas input into the gas distribution pipe (104) and the air are fully mixed.

6. The gas-air mixing device according to claim 1, characterized in that: Multiple diverter pipes (103) are fixedly installed at one end of the mixing tube (101) away from the air inlet pipe (20). The diverter pipes (103) are connected to the external gas supply pipe and are used to uniformly output the mixed gas in the mixing tube (101) to the outside of the device.

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