Pure chlorine dioxide gas accurate production device

Abstract

A device for accurately preparing pure chlorine dioxide gas comprises a reaction tank and a reaction chamber, wherein the reaction chamber is arranged in the reaction tank and connected to a turning device, the turning device is arranged on the reaction tank, a feeding port and an air outlet are arranged on the reaction tank, and the feeding port is connected to the reaction chamber. A reaction stock solution is added into the reaction chamber through the feeding port, and after sufficient reaction in the reaction chamber, a motor drives the reaction chamber to rotate, and the generated chlorine dioxide disinfectant is poured into the reaction tank, and then the reaction chamber is rotated back to its original position to continue to enter the next round of stock solution and chlorine dioxide disinfectant preparation. The device has a simple and ingenious structure, adopts an intermittently rotating reaction chamber, and controls the reaction time of each stock solution by controlling the time interval of each rotation of the reaction chamber, so that the stock solution is fully reacted and completely extracted without residue, and the concentration of the generated chlorine dioxide can be accurately controlled, which is suitable for the preparation of small-dose, non-continuous chlorine dioxide gas, and meets the requirements for more accurate concentration of chlorine dioxide gas during single disinfection.

Description

Technical Field

[0001] The invention relates to a device for preparing pure chlorine dioxide gas, belonging to the technical field of preparing chlorine dioxide gas. Background Art

[0002] Chlorine dioxide is generally produced by quantitatively injecting hydrochloric acid and sodium chlorate (or sodium chlorite) into a reaction tank, which reacts chemically under heating to generate chlorine dioxide and chlorine. A certain concentration of sodium chlorate aqueous solution (or a certain concentration of sodium chlorite aqueous solution) and a certain concentration of hydrochloric acid are quantitatively transported into the reaction tank, and a gas-liquid mixture of chlorine dioxide and chlorine is generated through aeration reaction at a certain temperature to form a chlorine dioxide mixed disinfectant of a certain concentration, which is then sucked into the disinfection water body or added to the object to be disinfected through a water ejector to complete the synergistic disinfection and oxidation of chlorine dioxide and chlorine.

[0003] Existing chlorine dioxide disinfection equipment directly adds water to the generated mixed gas to make a mixed disinfectant for spraying. The purity of chlorine dioxide in the mixed disinfectant is not high, and the disinfection effect is poor. It is not suitable for the preparation of small doses of pure chlorine dioxide gas.

[0004] CN108100998A discloses a pure chlorine dioxide gas generating device, which is composed of a 1# fan, a 1# air volume control valve, a 1# gas flow meter, a chlorine dioxide generator, a gas-liquid automatic separator, a waste liquid treatment device, a negative pressure gauge, a 2# air volume control valve, a 2# gas flow meter, and a 2# fan, and each component is assembled according to the dosing process requirements of the disinfectant. The device does not change the structure of the existing chlorine dioxide generator and does not solve the problems existing in the existing chlorine dioxide generator. Summary of the invention

[0005] The present invention aims to solve the problems existing in the existing material-liquid mixing reaction technology during gaseous synthesis production, and provides a precise production device for pure chlorine dioxide gas with a simple structure and meeting the needs of single precise concentration disinfection.

[0006] The device for accurately preparing pure chlorine dioxide gas of the present invention adopts the following technical solutions:

[0007] The device comprises a reaction tank and a reaction chamber. The reaction chamber is arranged in the reaction tank and connected with a turnover device. The turnover device is arranged on the reaction tank. A feeding port and an air outlet are arranged on the reaction tank. The feeding port is connected with the reaction chamber.

[0008] The reaction chamber is bowl-shaped.

[0009] The turning device comprises a rotating shaft and a motor, wherein the rotating shaft is connected to the main shaft of the motor, and the motor is fixed on the outside of the reaction tank.

[0010] A gas distribution pipe is arranged in the reaction tank.

[0011] The feeding port comprises a first feeding port and a second feeding port, for respectively feeding a sodium chlorate aqueous solution (or a sodium chlorite aqueous solution) of a certain concentration and a hydrochloric acid of a certain concentration.

[0012] A drain pipe is arranged at the bottom of the reaction tank, and a solenoid valve is connected to the drain pipe.

[0013] A certain amount of the first stock solution A and the second stock solution B is added into the reaction chamber from the feeding port. The two stock solutions of a certain amount react in the reaction chamber according to the set time, and the two stock solutions are guaranteed to react fully within this time. Then the motor drives the reaction chamber to rotate, the reaction chamber tilts, and the chlorine dioxide disinfectant generated by the reaction is poured into the reaction tank to complete a single reaction. Then the motor drives the emptied reaction chamber back to its original position to continue the next round of stock solution and chlorine dioxide disinfectant preparation. The chlorine dioxide disinfectant in the reaction tank generates pure chlorine dioxide gas through gas stirring, which is discharged from the gas outlet of the reaction tank, ensuring the accuracy of the chlorine dioxide gas concentration.

[0014] The invention has a simple and ingenious structure, adopts a flippable reaction chamber, and controls the reaction time of each stock solution by controlling the rotation time of the reaction chamber each time, so that the stock solution can fully react and be completely extracted without residue, and the concentration of the generated chlorine dioxide can be accurately controlled. It is suitable for the preparation of small doses and non-continuous chlorine dioxide gas, and can meet the requirements for more accurate concentration of chlorine dioxide gas during single disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the device for accurately preparing pure chlorine dioxide gas according to the present invention.

[0016] Among them: 1. First feeding port; 2. Second feeding port; 3. Rotating shaft; 4. Bearing; 5. Motor; 6. Reactor; 7. Air distribution pipe; 8. Drain pipe; 9. Residual night box; 10. Solenoid valve; 11. Reactor chamber; 12. Air inlet; 13. Air outlet. DETAILED DESCRIPTION

[0017] The device for accurately preparing pure chlorine dioxide gas of the present invention is different from the existing generator in that it adopts an intermittently rotating reaction chamber to prepare pure chlorine dioxide gas. The device can control the reaction time of each stock solution and accurately control the concentration of the generated chlorine dioxide.

[0018] like Figure 1As shown, the device includes a reaction tank 6 and a reaction chamber 11, and the reaction chamber 11 is arranged in the reaction tank 6 and connected to the turning mechanism. The turning mechanism adopts a motor 5. The reaction tank 6 is a sealed structure. In order to facilitate the internal structure, the front side panel is removed in the figure. A rotating shaft 3 is installed in the reaction tank 6, and the rotating shaft 3 is connected to the main shaft of the motor 5. The motor 5 is fixed on the outside of the reaction tank 6, and the reaction chamber 11 is installed on the rotating shaft 3. The reaction tank 6 is provided with a first feeding port 1, a second feeding port 2 and an air outlet 13, and the reaction stock liquid enters from the first feeding port 1 and the second feeding port 2. The air outlet 13 is a chlorine dioxide gas discharge port. An air distribution pipe 7 is arranged in the reaction tank 6, and the air inlet 12 of the air distribution pipe 7 is connected to an external air source. A drain pipe 8 is arranged at the bottom of the reaction tank 6, and a solenoid valve 10 is connected to the drain pipe 8. The reaction chamber 11 is an open structure, which is bowl-shaped. The mouth is turned from a horizontal state to a vertical state to pour the reacted liquid into the reaction tank 6. The first feeding port 1 and the second feeding port 2 correspond to the open positions of the reaction chamber 11 in a horizontal state, so that the raw liquid can enter the reaction chamber 11 .

[0019] In the initial state, the opening of the reaction chamber 11 faces upward, otherwise the motor 5 is started to drive the reaction chamber 11 to rotate to face upward through the rotating shaft 3. A certain amount of the first stock solution A and the second stock solution B are added to the reaction chamber 11 through the first feeding port 1 and the second feeding port 2, respectively. The air pump blows air into the reaction tank 6 through the air inlet 12, and the gas entering the reaction tank 6 enters the disinfectant through the air distribution pipe 7 to promote the reaction of the liquid in the reaction tank 6.

[0020] A certain amount of the first stock solution A and the second stock solution B react in the reaction chamber 11 for a certain period of time to fully react. Then the motor 5 is reversed to drive the reaction chamber 11 to flip and tilt, and the chlorine dioxide disinfectant generated by the reaction of the two stock solutions is completely poured into the reaction tank 6 for dilution, completing a single reaction.

[0021] After the chlorine dioxide disinfectant in the reaction chamber 11 is emptied, the motor 5 drives the reaction chamber 11 to return to the initial state, return to the original position, and continue to enter the next round of preparation of chlorine dioxide disinfectant.

[0022] The chlorine dioxide disinfectant in the reaction tank 6 generates pure chlorine dioxide gas through gas stirring, which is discharged through the air outlet 13 together with the incoming air, thereby ensuring the accuracy of the chlorine dioxide gas concentration and being used for disinfection, meeting the requirement for a more accurate chlorine dioxide gas concentration during a single disinfection.

[0023] Start the solenoid valve 10, and the residual liquid in the reaction tank 6 is discharged through the drain pipe 8 and enters the residual liquid box 9.

[0024] The device has a simple and ingenious structure. By intelligently controlling the time of rotating the reaction chamber each time, the stock solution is fully reacted and completely extracted without residue. The production volume is small, and it is suitable for the production of small-dose, non-continuous chlorine dioxide gas.

Claims

1. A device for accurately preparing pure chlorine dioxide gas, characterized in that: It includes a reaction tank and a reaction chamber, wherein the reaction chamber is arranged in the reaction tank and connected to a turning device, the turning device is arranged on the reaction tank, a feeding port and an air outlet are arranged on the reaction tank, and the feeding port is connected to the reaction chamber; The reaction chamber is bowl-shaped; The turning device comprises a rotating shaft and a motor, the rotating shaft is connected to the main shaft of the motor, and the motor is fixed outside the reaction tank; A gas distribution pipe is arranged in the reaction tank; The feeding port comprises a first feeding port and a second feeding port; A certain amount of the first stock solution A and the second stock solution B is added into the reaction chamber from the feeding port, and the two stock solutions of a certain amount react in the reaction chamber according to the set time, during which the two stock solutions are guaranteed to fully react, and then the motor drives the reaction chamber to rotate, the reaction chamber tilts, and the chlorine dioxide disinfectant generated by the reaction is poured into the reaction tank to complete a single reaction, and then the motor drives the emptied reaction chamber back to its original position to continue to enter the next round of stock solution and chlorine dioxide disinfectant preparation, the chlorine dioxide disinfectant in the reaction tank is stirred by air to produce pure chlorine dioxide gas, which is discharged from the gas outlet of the reaction tank, thereby ensuring the accuracy of the chlorine dioxide gas concentration.

2. The device for accurately preparing pure chlorine dioxide gas according to claim 1, characterized in that: A drain pipe is arranged at the bottom of the reaction tank.

3. The device for accurately preparing pure chlorine dioxide gas according to claim 2, characterized in that: The liquid discharge pipe is connected with a solenoid valve.

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