CN214780749U - Chlorine dioxide generating system - Google Patents
Chlorine dioxide generating system Download PDFInfo
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- CN214780749U CN214780749U CN202120695028.7U CN202120695028U CN214780749U CN 214780749 U CN214780749 U CN 214780749U CN 202120695028 U CN202120695028 U CN 202120695028U CN 214780749 U CN214780749 U CN 214780749U
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Abstract
The utility model provides a chlorine dioxide generating system, which comprises a hydrochloric acid storage tank, a sodium chlorite storage tank, a reactor, a gas conveying part and a cooling tank, wherein the reactor is communicated with the hydrochloric acid storage tank through a first pipeline and is communicated with the sodium chlorite storage tank through a second pipeline, and the reactor is provided with an exhaust port for discharging chlorine dioxide; the gas conveying piece is communicated with the reactor through a third pipeline, and a heater is arranged on the third pipeline to heat the gas from the gas conveying piece and then introduce the gas into the reactor; the cooling tank is used for containing cooling liquid, the cooling tank is communicated with the reactor through a fourth pipeline, and a first valve is arranged on the fourth pipeline. The utility model provides a chlorine dioxide generating system realizes can the safety in production chlorine dioxide, and increases the conversion rate of raw materials, reduction in production cost.
Description
Technical Field
The utility model belongs to the technical field of chlorine dioxide prepares, more specifically says, relates to a chlorine dioxide generating system.
Background
Chlorine dioxide is a gas from yellow green to orange yellow, and is a safe and nontoxic green disinfectant recognized internationally. Chlorine dioxide is industrially prepared by the sodium chlorite process, which reacts sodium chlorite with hydrochloric acid to produce chlorine dioxide. The chlorine dioxide prepared by the method has high purity, does not generate toxic byproducts such as trichloromethane and the like when being applied to disinfection, and is suitable for disinfection of drinking water and food. However, the existing equipment has low raw material conversion rate when preparing chlorine dioxide, which causes increase of production cost, and safety accidents easily occur when sudden conditions occur or the concentration of chlorine dioxide in the equipment is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chlorine dioxide generating system aims at realizing can producing chlorine dioxide safely, and the conversion rate of raw materials is higher, reduces use cost.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a chlorine dioxide generating system comprising:
a hydrochloric acid storage tank;
a sodium chlorite storage tank;
a reactor in communication with said hydrochloric acid storage tank via a first conduit and in communication with said sodium chlorite storage tank via a second conduit, said reactor having an exhaust port for discharging chlorine dioxide;
the gas conveying piece is communicated with the reactor through a third pipeline, and a heater is arranged on the third pipeline so as to heat the gas from the gas conveying piece and then introduce the gas into the reactor; and
and the cooling tank is used for containing cooling liquid, communicated with the reactor through a fourth pipeline, and provided with a first valve.
In a possible implementation manner, a premixer is arranged in the reactor, an inlet of the premixer is respectively communicated with the first pipeline and the second pipeline, and an outlet of the premixer is communicated with the reactor.
In a possible implementation manner, an aeration pipe is further arranged in the reactor, the aeration pipe extends into the lower portion of the reactor and is communicated with the third pipeline, and a plurality of aeration holes are formed in the aeration pipe.
In a possible implementation manner, the chlorine dioxide generation system further comprises a waste liquid tank, the waste liquid tank is communicated with the bottom of the reactor through a fifth pipeline to receive reaction waste liquid, and a second valve is arranged on the fifth pipeline.
In a possible implementation manner, the upper part of the reactor is provided with an overflow port which is communicated with the waste liquid tank through a sixth pipeline so as to introduce the reaction liquid into the waste liquid tank when the reaction liquid level exceeds a preset value.
In one possible implementation, the chlorine dioxide generation system further includes a buffering component, and the buffering component includes:
the inlet of the first buffer tank is communicated with the exhaust port;
the second buffer tank is used for temporarily storing air; and
and the inlet of the gas mixer is respectively communicated with the first buffer tank and the second buffer tank and is used for mixing chlorine dioxide and gas.
In one possible implementation, the chlorine dioxide generation system further includes an emergency sensing unit, and the emergency sensing unit includes:
the controller is in communication connection with the first valve; and
and the concentration detection parts are provided with two concentration detection parts which are respectively in communication connection with the controller, and the two concentration detection parts are respectively arranged in the first buffer tank and the reactor and are used for detecting the concentration of the chlorine dioxide.
In a possible implementation manner, the emergency sensing unit further includes a power-off sensing module, and the power-off sensing module can sense the on/off of current and is in communication connection with the controller.
In one possible implementation, a stirring assembly is provided in the premixer, the stirring assembly including:
the driver is arranged at the top of the premixer;
the stirring shaft is rotatably arranged in the premixer and is connected with the driver; and
and the stirring paddle is connected with the stirring shaft and can fully mix the sodium chlorite and the hydrochloric acid.
In a possible implementation manner, the first pipeline and the second pipeline are respectively provided with a one-way valve.
The utility model provides a chlorine dioxide generating system's beneficial effect lies in: compared with the prior art, the utility model discloses chlorine dioxide generating system leaves hydrochloric acid and sodium chlorite in hydrochloric acid storage tank and sodium chlorite storage tank respectively to in carrying to the reactor through first pipeline and second pipeline respectively, gaseous transport piece lets in the gas by the heater heating to the reactor. The heated gas can ensure the proper temperature in the reactor and improve the conversion rate. The gas is heated, so that the phenomenon that hydrochloric acid or sodium chlorite is easily volatilized or decomposed due to direct heating is avoided, and the stability of the reaction is improved. When the system is in failure or emergency, the cooling tank conveys cooling liquid into the reactor, the temperature in the reactor is reduced, the reaction liquid formed by hydrochloric acid and sodium chlorite is diluted, the reaction is slowed down or stopped, and the danger is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a chlorine dioxide generation system provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a premixer employed in an embodiment of the present invention;
fig. 3 is a top view of an aeration tube according to an embodiment of the present invention.
In the figure: 1. a hydrochloric acid storage tank; 2. a sodium chlorite storage tank; 3. a waste liquid tank; 4. a gas delivery member; 5. a one-way valve; 6. a metering pump; 7. a first conduit; 8. a second conduit; 9. a third pipeline; 10. a heater; 11. a first buffer tank; 12. a concentration detection member; 13. a reactor; 14. an aeration pipe; 1401. a connecting pipe; 1402. an exhaust pipe; 1403. an aeration hole; 15. a sixth pipeline; 16. a second valve; 17. a fifth pipeline; 18. a fourth conduit; 19. a cooling tank; 20. a second buffer tank; 21. a gas mixer; 22. a driver; 23. a stirring shaft; 24. a stirring paddle; 25. a first valve; 26. a premixer.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a chlorine dioxide generating system according to the present invention will now be described. The chlorine dioxide generating system comprises a hydrochloric acid storage tank 1, a sodium chlorite storage tank 2, a reactor 13, a gas conveying part 4 and a cooling tank 19, wherein the reactor 13 is communicated with the hydrochloric acid storage tank 1 through a first pipeline 7 and is communicated with the sodium chlorite storage tank 2 through a second pipeline 8, and the reactor 13 is provided with an exhaust port for discharging chlorine dioxide; the gas conveying member 4 is communicated with the reactor 13 through a third pipeline 9, and a heater 10 is arranged on the third pipeline 9 so as to heat the gas from the gas conveying member 4 and then introduce the heated gas into the reactor 13; the cooling tank 19 is used for containing cooling liquid, the cooling tank 19 is communicated with the reactor 13 through a fourth pipeline 18, and a first valve 25 is arranged on the fourth pipeline 18.
The utility model provides a chlorine dioxide generating system, compared with the prior art, the utility model discloses chlorine dioxide generating system leaves hydrochloric acid and sodium chlorite in hydrochloric acid storage tank 1 and sodium chlorite storage tank 2 respectively to carry to reactor 13 in through first pipeline 7 and second pipeline 8 respectively, gas transport piece 4 lets in the gas that is heated by heater 10 in to reactor 13. The heated gas can ensure that the temperature in the reactor 13 is proper, and the conversion rate is improved. The gas is heated, so that the phenomenon that hydrochloric acid or sodium chlorite is easily volatilized or decomposed due to direct heating is avoided, and the stability of the reaction is improved. When the system is in failure or emergency, the cooling tank 19 conveys cooling liquid into the reactor 13, reduces the temperature in the reactor 13, dilutes the reaction liquid formed by hydrochloric acid and sodium chlorite, slows down or stops the reaction, and avoids danger.
Optionally, the gas is air or other inert gas to avoid reaction with hydrochloric acid or sodium chlorite.
Optionally, the gas transport member 4 is a gas transport pump.
Alternatively, the coolant in the cooling tank 19 may be fed into the reactor 13 manually or automatically.
Optionally, the third pipeline 9 may extend into the lower part of the reactor 13, and the gas outlet of the third pipeline 9 is located below the liquid level of the reaction liquid; or extend into the upper part of the reactor 13, so that the gas outlet of the third pipeline 9 is above the liquid level of the reaction liquid.
Optionally, the reactor 13 includes an upper shell and a lower shell, and the upper shell and the lower shell are connected by a flange after being butted.
Alternatively, the reactor 13 may be an integral component.
In some embodiments, referring to fig. 1, a premixer 26 is disposed in the reactor 13, wherein the inlet of the premixer 26 is communicated with the first pipe 7 and the second pipe 8, respectively, and the outlet is communicated with the reactor 13.
In the embodiment, hydrochloric acid and sodium chlorite are respectively introduced into the pre-mixer 26 through the first pipeline 7 and the second pipeline 8 to be primarily mixed, the pre-mixer 26 is arranged in the reactor 13 and can generate heat exchange with the reactor 13 to enable the hydrochloric acid and the sodium chlorite to be primarily reacted, then reaction liquid enters the reactor 13 to be further reacted to generate chlorine dioxide, and the pre-mixer 26 is arranged to increase the conversion rate and save raw materials. Meanwhile, the pre-mixer 26 is arranged in the reactor 13, so that the heating structure is simplified, the heat in the reactor 13 can be fully utilized, and the heat loss is avoided.
In some embodiments, referring to fig. 1, an aeration pipe 14 is further disposed in the reactor 13, the aeration pipe 14 extends to a lower portion of the reactor 13 and is communicated with the third pipeline 9, and a plurality of aeration holes 1403 are disposed on the aeration pipe 14.
After entering the reactor 13, the gas is discharged from the aeration holes 1403 to contact with the reaction liquid of hydrochloric acid and sodium chlorite, and the generated bubbles extrude chlorine dioxide from the reaction liquid, so that the chlorine dioxide is conveniently collected. The aeration pipe 14 is provided at the lower part of the reactor 13 to allow the gas to be directly contacted with the reaction solution after being discharged, thereby facilitating the discharge of chlorine dioxide.
Optionally, referring to fig. 3, the aeration pipe 14 includes a connection pipe 1401 communicated with the third pipeline 9 and an exhaust pipe 1402 surrounding the generator, the connection pipe 1401 is crossed and communicated with the exhaust pipe 1402, and the connection pipe 1401 and the aeration pipe 14 are provided with aeration holes 1403 on their outer circumferential surfaces. By adopting the structure, the number of the aeration holes 1403 can be increased, and air bubbles can be uniformly discharged from the reactor 13, so that chlorine dioxide can be discharged from the reaction liquid.
In some embodiments, referring to fig. 1, the chlorine dioxide generating system further comprises a waste liquid tank 3, the waste liquid tank 3 is communicated with the bottom of the reactor 13 through a fifth pipe 17 to receive the reaction waste liquid, and the fifth pipe 17 is provided with a second valve 16.
After the hydrochloric acid and the sodium chlorite fully react, the chlorine dioxide is not generated any more, the second valve 16 is opened, and the waste liquid flows into the waste liquid tank 3 through the fifth pipeline 17, so that the waste liquid can be recycled. Meanwhile, after the waste liquid in the reactor 13 is discharged, raw materials can be continuously introduced into the reactor 13 to prepare chlorine dioxide, so that the circular production can be realized, and the production efficiency is improved.
In some embodiments, referring to fig. 1, the upper part of the reactor 13 has an overflow port, which is communicated with the waste liquid tank 3 through a sixth pipeline 15, so as to introduce the reaction liquid into the waste liquid tank 3 when the reaction liquid level exceeds a preset value.
When the reaction liquid in the reactor 13 is too much, the reaction liquid can be directly discharged into the waste liquid tank 3 through the overflow port, and the reaction liquid can be timely discharged through the overflow port, so that the danger caused by the excessive reaction liquid stored in the reactor 13 is avoided, the manual intervention is not needed, the production efficiency is improved, and the danger is reduced.
In some embodiments, referring to fig. 1, the chlorine dioxide generating system further comprises a buffer assembly comprising a first buffer tank 11, a second buffer tank 20 and a gas mixer 21, wherein an inlet of the first buffer tank 11 is communicated with the exhaust port; the second buffer tank 20 is used for temporarily storing air; the gas mixer 21 has inlets respectively communicating with the first and second buffer tanks 11 and 20 for mixing chlorine dioxide and gas.
Chlorine dioxide generated in the reactor 13 enters the first buffer tank 11, and the first buffer tank 11 adjusts the pressure of the chlorine dioxide, so that danger caused by excessive pressure is avoided. The second buffer tank 20 can temporarily store the air input by the air pump, adjust the pressure of the air, and respectively mix the pressure-adjusted chlorine dioxide and the air entering the gas mixer 21. By adopting the structure, safety accidents caused by overlarge pressure during mixing can be avoided, and simultaneously, chlorine dioxide and air can be fully mixed uniformly, so that the mixing rate is improved.
In some embodiments, referring to fig. 1, the chlorine dioxide generating system further comprises an emergency sensing unit, the emergency sensing unit comprises a controller and a concentration detector 12, the controller is in communication with the first valve 25; the concentration detection parts 12 are provided with two concentration detection parts 12 which are respectively in communication connection with the controller, and the two concentration detection parts 12 are respectively arranged in the first buffer tank 11 and the reactor 13 and are used for detecting the concentration of the chlorine dioxide.
When the concentration detection part 12 detects that the concentration of chlorine dioxide in the reactor 13 or the first buffer tank 11 reaches a preset value, an alarm signal is generated, the controller drives the first valve 25 to be opened according to the alarm signal, the cooling tank 19 feeds cooling liquid into the reactor 13 to dilute the reaction liquid, and meanwhile, the temperature in the reactor 13 is reduced, and safety accidents are avoided. And an automatic control system is adopted, so that the operation steps are simplified, the problems can be found and solved in time, and the safety in production is improved. Similarly, when the concentration detecting part 12 detects that the concentrations of chlorine dioxide in the reactor 13 and the first buffer tank 11 reach the standard again, a closing signal is generated, and the controller drives the first valve 25 to close according to the closing signal to stop conveying the cooling liquid.
Optionally, the first valve 25 is a solenoid valve.
Optionally, the preset value of the concentration detector 12 is 8%.
Optionally, the cooling liquid is water, and the water can dissolve chlorine dioxide, so that the pressure in the reactor 13 is reduced, and explosion accidents are avoided.
Optionally, a temperature detection part is arranged in the reactor 13, and the temperature detection part is in communication connection with the controller. When the temperature detection piece detects that the stability in the reactor 13 exceeds a preset value, an alarm signal is generated, the controller drives the electromagnetic valve to be opened according to the alarm signal, and the cooling tank 19 introduces cooling liquid into the reactor 13 to cool the reactor 13.
In some embodiments, referring to fig. 1, the emergency sensing unit further includes a power-off sensing module, which can sense on/off of current and is in communication connection with the controller.
When the power-off sensing module detects that the current of the system is blocked, the power-off sensing module generates an opening signal, the controller controls the first valve 25 to be opened according to the opening signal, the cooling liquid is introduced into the reactor 13, the reaction liquid is diluted, meanwhile, the temperature in the reactor 13 is reduced, and safety accidents are avoided. And an automatic control system is adopted, so that the operation steps are simplified, the problems can be found and solved in time, and the safety in production is improved.
In some embodiments, referring to fig. 2, a stirring assembly is disposed in the premixer 26, the stirring assembly includes a driver 22, a stirring shaft 23 and a stirring paddle 24, the driver 22 is disposed at the top of the premixer 26; the stirring shaft 23 is rotatably arranged in the premixer 26 and is connected with the driver 22; the stirring paddle 24 is connected to the stirring shaft 23, and can sufficiently mix sodium chlorite and hydrochloric acid.
Hydrochloric acid and sodium chlorite respectively enter the premixer 26, the driver 22 drives the stirring shaft 23 to rotate, and the stirring paddle 24 stirs the hydrochloric acid and the sodium chlorite, so that the hydrochloric acid and the sodium chlorite can be fully mixed and reacted, and the conversion efficiency is improved.
Optionally, the drive 22 is a motor.
In some embodiments, referring to fig. 1, the first pipe 7 and the second pipe 8 are respectively provided with a metering pump 6.
If the input amount of the hydrochloric acid is too large, the reaction speed is reduced; if the input amount of sodium chlorite is too large, the content of chlorite in the reaction solution is increased, waste is generated, and the conversion rate is affected. The metering pump 6 can control the input amount of the hydrochloric acid and the sodium chlorite, ensure that the hydrochloric acid and the sodium chlorite in the reactor 13 are in a reasonable range, and save raw materials.
In some embodiments, referring to fig. 1, the first pipe 7 and the second pipe 8 are respectively provided with a check valve 5.
The one-way valve 5 can control the flow path, and prevent the liquid in the reactor 13 from flowing back to pollute the raw materials in the hydrochloric acid storage tank 1 or the sodium chlorite storage tank 2.
In some embodiments, the chlorine dioxide generation system further comprises a display, and the display is in communication connection with the controller and can output signals received by the controller, so that an operator can conveniently monitor the system in time.
Optionally, the controller has a PLC programmable system.
In some embodiments, liquid level detectors are respectively disposed in the hydrochloric acid storage tank 1 and the sodium chlorite storage tank 2, and can detect the liquid level amounts of the hydrochloric acid storage tank 1 and the sodium chlorite storage tank 2, so as to conveniently and timely supplement the raw materials.
Optionally, the liquid level detector is in communication connection with the controller, so that an operator can conveniently read the liquid level from the display, and the raw materials can be supplemented in time.
Optionally, the chlorine dioxide generating system further comprises a chlorine dioxide concentration sensor in communication connection with the controller, the chlorine dioxide concentration sensor can detect the concentration of chlorine dioxide outside the chlorine dioxide generating system, when the concentration of chlorine dioxide reaches a preset value, a signal is sent to the controller, and the controller controls the display to output the signal to remind an operator.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Chlorine dioxide generation system, characterized by, includes:
a hydrochloric acid storage tank;
a sodium chlorite storage tank;
a reactor in communication with said hydrochloric acid storage tank via a first conduit and in communication with said sodium chlorite storage tank via a second conduit, said reactor having an exhaust port for discharging chlorine dioxide;
the gas conveying piece is communicated with the reactor through a third pipeline, and a heater is arranged on the third pipeline so as to heat the gas from the gas conveying piece and then introduce the gas into the reactor; and
and the cooling tank is used for containing cooling liquid, communicated with the reactor through a fourth pipeline, and provided with a first valve.
2. The chlorine dioxide generating system of claim 1, wherein a pre-mixer is disposed within the reactor, the pre-mixer having an inlet in communication with the first conduit and the second conduit, respectively, and an outlet in communication with the reactor.
3. The chlorine dioxide generating system of claim 1, wherein an aerator pipe is further disposed in the reactor, the aerator pipe extends into a lower portion of the reactor and is in communication with the third pipeline, and the aerator pipe is provided with a plurality of aeration holes.
4. The chlorine dioxide generating system of claim 1, further comprising a waste liquid tank, wherein the waste liquid tank is communicated with the bottom of the reactor through a fifth pipeline to receive reaction waste liquid, and a second valve is disposed on the fifth pipeline.
5. The chlorine dioxide generating system according to claim 4, wherein the upper portion of the reactor has an overflow port, and the overflow port is communicated with the waste liquid tank through a sixth pipe to introduce the reaction liquid into the waste liquid tank when the reaction liquid level exceeds a preset value.
6. The chlorine dioxide generating system of claim 1, further comprising a buffering component, the buffering component comprising:
the inlet of the first buffer tank is communicated with the exhaust port;
the second buffer tank is used for temporarily storing air; and
and the inlet of the gas mixer is communicated with the first buffer tank and the second buffer tank respectively.
7. A chlorine dioxide generating system as defined in claim 6, wherein the chlorine dioxide generating system further comprises an emergency sensing unit, said emergency sensing unit comprising:
the controller is in communication connection with the first valve; and
and the concentration detection parts are provided with two concentration detection parts which are respectively in communication connection with the controller, and the two concentration detection parts are respectively arranged in the first buffer tank and the reactor and are used for detecting the concentration of the chlorine dioxide.
8. The chlorine dioxide generating system of claim 7, wherein the emergency sensing unit further comprises a power-off sensing module capable of sensing the on/off of an electric current and communicatively coupled to the controller.
9. A chlorine dioxide generating system as recited in claim 2, wherein an agitator assembly is provided within the premixer, said agitator assembly comprising:
the driver is arranged at the top of the premixer;
the stirring shaft is rotatably arranged in the premixer and is connected with the driver; and
and the stirring paddle is connected with the stirring shaft.
10. The chlorine dioxide generating system of claim 1, wherein said first pipeline and said second pipeline each have a one-way valve.
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| CN202120695028.7U CN214780749U (en) | 2021-04-06 | 2021-04-06 | Chlorine dioxide generating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120695028.7U CN214780749U (en) | 2021-04-06 | 2021-04-06 | Chlorine dioxide generating system |
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| CN214780749U true CN214780749U (en) | 2021-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259972A (en) * | 2022-01-07 | 2022-04-01 | 四川宝生药业发展有限公司 | Liquid-liquid two-phase mixing device of chlorine dioxide enhanced reactor |
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2021
- 2021-04-06 CN CN202120695028.7U patent/CN214780749U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259972A (en) * | 2022-01-07 | 2022-04-01 | 四川宝生药业发展有限公司 | Liquid-liquid two-phase mixing device of chlorine dioxide enhanced reactor |
| CN114259972B (en) * | 2022-01-07 | 2024-05-10 | 宝生集团有限公司 | Liquid-liquid two-phase mixing device of chlorine dioxide strengthening reactor |
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