Gas mixing tank for efficiently mixing gas-phase substances and liquid-phase substances

Abstract

The utility model discloses a gas mixing tank for efficiently mixing gas and liquid phase substances, and belongs to the field of technical equipment. The gas mixing tank mainly comprises a gas inlet bin, a mixing bin, a buffering bin and other working devices. The gas inlet bin, the mixing bin and the buffering bin are sequentially connected from left to right, the gas inlet and the gas outlet are formed in the left end of the gas inlet bin and the right end of the buffering bin respectively, and other working devices mainly comprise a temperature control system and a liquid phase conveying system. According to the gas mixing tank, accurate controllable vaporization of liquid-phase substances can be achieved through the temperature control system and the liquid-phase conveying system, and meanwhile efficient mixing of the liquid-phase substances and gaseous substances is achieved. Gaseous mixing of multiphase pollutants in a laboratory can be completed, and efficient mixing of various reactants in a fine chemical reaction system can be achieved. Meanwhile, the gas mixing tank is simple in structure and low in cost, and has a great application prospect.

Description

Technical Field

[0001] The utility model relates to the field of technical equipment, and particularly relates to a gas mixing tank for efficient mixing of gas and liquid phase substances. Background Art

[0002] The gas-liquid phase vaporization mixing technology is one of the important technologies in chemical engineering and process industry, and is widely used in fields such as petrochemical industry, pharmaceutical industry, and food processing. The core of this technology is to convert liquid substances into gaseous state by means of heating or pressure reduction, etc., and fully mix them with gaseous substances to form a uniform gas-gas mixture. With the continuous improvement of production technology and production requirements, higher requirements are put forward for the gas-liquid phase vaporization mixing technology in various industries. During the mixing process of multiple substances, it is necessary to adjust the mixing temperature to ensure complete vaporization of liquid substances. The main challenge currently faced is how to fully and evenly mix the vaporized liquid substances with other gaseous substance components. Currently, the mixing process generally requires a large-footprint device for long-path mixing of gases, resulting in low mixing efficiency and long process.

[0003] The gas mixing device with the application number CN201420713522.1 discloses a gas mixing device. The gas mixing device of this method includes a gas mixing tank and multiple gas delivery pipelines. One end of the gas delivery pipeline is connected to a gas storage tank, and the other end is connected to the gas mixing tank. A pressure reducing valve and an electromagnetic proportional valve are sequentially arranged on the gas delivery pipeline from one end to the other end. The gas mixing device also includes a gas component analyzer for analyzing the gas composition in the gas mixing tank and a PLC controller. The electromagnetic proportional valve is connected to the PLC controller and is controlled by it. The PLC controller receives the analysis result of the gas component analyzer and adjusts the electromagnetic proportional regulating valve on the corresponding gas delivery pipeline according to the analysis result to achieve precise control of the composition of the mixed gas. However, it is difficult to ensure the mixing degree of the gas by this device, and at the same time, it cannot mix liquid substances with gas, so its application range is not wide and it cannot meet the production needs. Summary of the Utility Model

[0004] The purpose of the utility model is to realize the mixing of substances in different phases and at the same time strengthen the mixing effect of the mixed gas after vaporization. At the same time, the buffer bin arranged inside the gas mixing tank has a certain auxiliary effect on the stability of the gas supply system and can alleviate the problem of flow impact of the gas supply system.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] A gas mixing tank for efficient mixing of gas and liquid substances, characterized in that one end of the gas mixing tank is provided with an air inlet, the other end is provided with an air outlet, and an air inlet chamber, a gas-liquid mixing pipe, a mixing chamber, a mixing pipe and a buffer chamber are sequentially arranged in the cavity of the gas mixing tank between the air inlet and the air outlet; a liquid infusion conduit is arranged on the gas-liquid mixing pipe, and the outlet of the liquid infusion conduit is located outside the gas mixing tank.

[0007] In the technical solution of the present utility model, the air inlet chamber is a chamber wall with a variable cross-section.

[0008] In the technical solution of the present utility model, the cross-section of the air inlet chamber gradually becomes smaller along the direction of the airflow.

[0009] In the technical solution of the present utility model, the outlet of the liquid infusion conduit is connected to a microfluidic pump.

[0010] In the technical solution of the present utility model, the output end of the gas-liquid mixing pipe is connected to the mixing chamber, a number of vertically arranged turbulence baffles are arranged in the mixing chamber, and the outlet of the mixing chamber is connected to the mixing pipe.

[0011] In the technical solution of the present utility model, the air outlet of the mixing pipe is connected to the buffer chamber, and the air outlet of the buffer chamber is connected to a pipe quick connector.

[0012] In the technical solution of the present utility model, an electric heating wire is arranged on the outer wall of the gas mixing tank.

[0013] The beneficial effects of the present utility model are as follows:

[0014] In this system, after air intake, the cross-sectional area of the pipeline is changed to accelerate the air flow. At the same time, the liquid infusion pipe arranged in the gas acceleration area transports the liquid substance to this air flow acceleration position, realizing the preliminary mixing of the two by the high-speed impact of the air flow. The electric heating wire heats the entire gas mixing tank to achieve uniform heating of the tank body and vaporization of the liquid phase substance. The increased volume after vaporization of the liquid phase substance increases its contact area with the introduced gas, realizing further mixing. Subsequently, the subsequent turbulence baffles change the fluid state of the mixed gas into a turbulent state during the process of changing the gas flow direction, achieving full mixing of multiple substances. Because of its high mixing efficiency, the volume of this gas mixing tank is smaller, which can well reduce the use cost and has a broad application prospect. Description of the Drawings

[0015] Figure 1 is a gas mixing tank for efficient mixing of gas and liquid substances of the technology of the present utility model.

[0016] Meanings of the reference numerals: 1 is a pipe quick connector, 2 is an air inlet, 3 is an air inlet chamber, 4 is a variable cross-section chamber wall, 5 is a rubber plug, 6 is an infusion catheter, 7 is an infusion tube, 8 is a gas-liquid mixing tube, 9 is a microfluidic pump, 10 is a temperature detector, 11 is a turbulence baffle, 12 is a mixing chamber, 13 is a mixing tube, 14 is a buffer chamber, 15 is a heating wire, and 16 is an air outlet. Detailed implementation manners

[0017] The present utility model will be further described below in conjunction with embodiments, but the protection scope of the present utility model is not limited thereto:

[0018] As Figure 1 shown, a gas mixing tank for efficient mixing of gas and liquid phase substances, one end of the gas mixing tank is provided with an air inlet, and the other end is provided with an air outlet. An air inlet chamber 2, a gas-liquid mixing tube 8, a mixing chamber 12, a mixing tube 13 and a buffer chamber 14 are sequentially arranged in the cavity of the gas mixing tank between the air inlet and the air outlet; a liquid infusion catheter 6 is arranged on the gas-liquid mixing tube 8, and the outlet of the liquid infusion catheter 6 is located outside the gas mixing tank. The air inlet chamber is a variable cross-section chamber wall. The cross-section of the air inlet chamber gradually becomes smaller along the direction of the airflow. The outlet of the liquid infusion catheter 6 is connected to the microfluidic pump 9. The output end of the gas-liquid mixing tube 8 is connected to the mixing chamber 12. A plurality of vertically arranged turbulence baffles 11 are arranged in the mixing chamber 12, and the outlet of the mixing chamber 12 is connected to the mixing tube 13. The air outlet of the mixing tube 13 is connected to the buffer chamber 14, and the air outlet of the buffer chamber 14 is connected to the pipe quick connector 1. A heating wire 15 is arranged on the outer wall of the gas mixing tank.

[0019] The specific solution is as follows:

[0020] The tank body material of the gas mixing tank is 304 stainless steel. The gas mixing tank mainly includes an air inlet chamber 3, a mixing chamber 12, a buffer chamber 14 and other working devices. The air inlet chamber 3, the mixing chamber 12 and the buffer chamber 14 are connected in sequence from left to right. The other working devices mainly include a temperature control system and a liquid phase delivery system. A variable cross-section chamber wall 4 and a gas-liquid mixing tube 8 are arranged inside the air inlet chamber 3. An air inlet 2 is arranged on the left side of the air inlet chamber 3. A pipe quick connector 1 is arranged at the air inlet. The gas-liquid mixing tube 8 arranged at the right end of the air inlet chamber 3 is connected to the mixing chamber 12. Turbulence baffles 11 are arranged inside the mixing chamber 12. Temperature detectors 10 are arranged at both ends of the mixing chamber. The right end of the mixing chamber 12 is connected to the buffer chamber 14 through a mixing tube 13. An air outlet 16 is arranged at the right end of the buffer chamber 14, and a pipe quick connector 1 is arranged at the air inlet. The temperature control system mainly includes a heating wire 15 arranged on the inner wall of the gas mixing tank and a temperature detector 10 arranged in the mixing chamber 12. The liquid phase delivery system mainly includes an infusion port 6, an infusion tube 7 and a microfluidic pump 9. The liquid infusion catheter 6 is communicated with the gas-liquid mixing tube 8, and a rubber plug 5 is arranged inside the liquid infusion catheter 6. The infusion tube 7 passes through the high-temperature resistant rubber plug 5 arranged inside the liquid infusion catheter 6 and is directly connected to the gas-liquid mixing tube 8. The other end of the infusion tube 7 is connected to the microfluidic pump 9.

[0021] The specific working process and principle of the present utility model are as follows:

[0022] Place the liquid substances to be mixed in the microfluidic pump. Turn on the heating wire switch to control the heating temperature. After the temperature of the tank body is stable, introduce gas through the air inlet. The gas realizes air flow acceleration in the gas-liquid mixing pipe after passing through the variable cross-section chamber wall in the air inlet chamber. At the same time, turn on the microfluidic pump and evenly push the liquid substances into the gas-liquid mixing pipe through the infusion pipe. The liquid substances are vaporized and then carried into the mixing chamber by the air flow. The mixed air flow continuously changes after passing through the turbulence baffle, making the air flow present a turbulent state to achieve efficient mixing of the mixer. The mixed gas reaches the buffer chamber after passing through the mixing pipe. The buffer chamber has a relatively large volume and can realize the function of regulating the stability of the air output volume and the air input volume. Finally, the mixed gas is output to the subsequent working unit through the air outlet.

[0023] The above is only the preferred embodiment of the present utility model, and it does not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications to the above-disclosed technical content to form an equivalent embodiment with equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

[0024] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the ratio relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model.

Claims

1. A gas mixing tank for efficient mixing of gas and liquid phase substances, characterized in that: The gas mixing tank is provided with an air inlet at one end and an air outlet at the other end, and an air inlet chamber (2), a gas-liquid mixing pipe (8), a mixing chamber (12), a mixing pipe (13) and a buffer chamber (14) are sequentially provided in the cavity of the gas mixing tank between the air inlet and the air outlet; a liquid infusion conduit (6) is provided on the gas-liquid mixing pipe (8), and the outlet of the liquid infusion conduit (6) is located outside the gas mixing tank.

2. The gas mixing tank for efficient mixing of gas and liquid phase substances according to claim 1, characterized in that: The air inlet bin is a bin wall with a variable cross-section.

3. The gas mixing tank for efficient mixing of gas and liquid phase substances according to claim 2, characterized in that: The cross section of the air inlet bin gradually decreases along the direction of the airflow.

4. The gas mixing tank for efficient mixing of gas and liquid phase substances according to claim 1, characterized in that: The outlet of the infusion catheter (6) is connected to the microfluidic pump (9).

5. The gas mixing tank for efficient mixing of gas and liquid phase substances according to claim 1, characterized in that: The output end of the gas-liquid mixing pipe (8) is connected to a mixing chamber (12), a plurality of vertically arranged turbulent baffles (11) are provided in the mixing chamber (12), and the outlet of the mixing chamber (12) is connected to a mixing pipe (13).

6. The gas mixing tank for efficient mixing of gas and liquid phase substances according to claim 1, characterized in that: The air outlet of the mixing tube (13) is connected to the buffer bin (14), and the air outlet of the buffer bin (14) is connected to the pipeline quick connector (1).

7. The gas mixing tank for efficient mixing of gas and liquid phase substances according to claim 1, characterized in that: The outer wall of the gas mixing tank is provided with an electric heating wire (15).

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