CN111569689A - Equipment for preparing pure chlorine dioxide disinfectant in medical public place - Google Patents
Equipment for preparing pure chlorine dioxide disinfectant in medical public place Download PDFInfo
- Publication number
- CN111569689A CN111569689A CN202010533294.XA CN202010533294A CN111569689A CN 111569689 A CN111569689 A CN 111569689A CN 202010533294 A CN202010533294 A CN 202010533294A CN 111569689 A CN111569689 A CN 111569689A
- Authority
- CN
- China
- Prior art keywords
- resistor
- chlorine dioxide
- pure
- concentration
- disinfectant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/2319—Methods of introducing gases into liquid media
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23763—Chlorine or chlorine containing gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/70—Pre-treatment of the materials to be mixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
- B01F25/51—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is circulated through a set of tubes, e.g. with gradual introduction of a component into the circulating flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/29—Mixing systems, i.e. flow charts or diagrams
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Zoology (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Agronomy & Crop Science (AREA)
- Environmental Sciences (AREA)
- Inorganic Chemistry (AREA)
- Toxicology (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
A pure chlorine dioxide disinfectant preparation device in a medical public place comprises a pure water preparation device, a pure liquid barrel and a chlorine dioxide gas preparation device, wherein the pure liquid barrel is connected with a water outlet of the pure water preparation device, a pure liquid barrel gas stirring pipe is connected between the pure liquid barrel and the chlorine dioxide gas preparation device, and a liquid outlet pipe is arranged at the upper part of the pure liquid barrel. The device purifies water through the purified water preparation device, and the prepared purified water enters the purified water barrel. Chlorine dioxide gas generated by the chlorine dioxide disinfectant preparation device enters the pure liquid barrel through the pure liquid barrel gas stirring pipe to be dissolved in pure water, and pure chlorine dioxide disinfectant with a certain concentration is generated. The invention can accurately prepare the pure disinfectant with standard concentration, adopts the gas-liquid separation and internal circulation modes to prepare the disinfectant with standard concentration, carries out real-time online detection, and can measure the concentration of the disinfectant at any time to ensure that the concentration of the disinfectant is stabilized in a certain range for customers to use; the whole process is automatically controlled, the materials are taken at any time along with the production, the proportioning is automatic, and the operation is convenient and quick.
Description
Technical Field
The invention relates to a medical chlorine dioxide disinfectant preparation device for disinfecting the environment of public places, belonging to the technical field of preparation of chlorine dioxide disinfectant.
Background
Chlorine dioxide is generally produced by quantitatively injecting hydrochloric acid and sodium chlorate (or sodium chlorite) into a reaction tank, and the reaction tank is heated to generate chemical reaction between chlorine dioxide and chlorine. Quantitatively conveying a sodium chlorate aqueous solution (or a sodium chlorite aqueous solution with a certain concentration, a raw material A) and hydrochloric acid (a raw material B) with a certain concentration into a reaction tank, reacting at a certain temperature to generate a gas-liquid mixture of chlorine dioxide and chlorine, preparing a chlorine dioxide mixed disinfectant with a certain concentration by an aeration technology, sucking the chlorine dioxide mixed disinfectant by a water injector, and adding the chlorine dioxide mixed disinfectant into a disinfection water body or an object to be disinfected to complete the synergistic disinfection, oxidation and other effects of the chlorine dioxide and the chlorine.
The existing chlorine dioxide disinfectant is prepared by adopting tap water containing impurities, the purity and the concentration of the chlorine dioxide disinfectant can not be accurately controlled, and the chlorine dioxide disinfectant with accurate concentration can not be provided according to environmental conditions.
Disclosure of Invention
Aiming at the problems of the existing chlorine dioxide disinfectant preparation technology, the invention provides a medical public place pure chlorine dioxide disinfectant preparation device capable of obtaining chlorine dioxide disinfectant with accurate concentration.
The invention relates to a device for preparing pure chlorine dioxide disinfectant in medical public places, which adopts the following technical scheme:
the device comprises a purified water preparation device, a pure liquid barrel and a chlorine dioxide gas preparation device, wherein the pure liquid barrel is connected with a water outlet of the purified water preparation device, a pure liquid barrel gas stirring pipe is connected between the pure liquid barrel and the chlorine dioxide gas preparation device, and a liquid outlet pipe is arranged at the upper part of the pure liquid barrel.
The purified water preparation device comprises a prefilter, a booster pump, a fifth valve, a reverse osmosis unit, a fourth valve, a pressure switch and a sixth valve which are sequentially connected, wherein the water inlet side and the water outlet side of the reverse osmosis unit are respectively connected with a pressurization tank through the first valve and the second valve.
The chlorine dioxide gas preparation device comprises a reactor, a raw material tank A and a raw material tank B; a reaction kettle is arranged in the reactor, and the raw material tank A and the raw material tank B are respectively connected with the reaction kettle through pumps; and a reactor gas stirring pipe is connected between the reactor and the pure liquid barrel, and a circulating air pump is connected on the reactor gas stirring pipe.
The liquid outlet pipe is connected with a liquid outlet pump and used for discharging the prepared disinfectant.
A plurality of liquid level meters (2-6) are sequentially arranged in the pure liquid barrel from bottom to top and are used for respectively detecting a plurality of liquid levels.
And an online concentration monitoring device is also arranged in the pure liquid barrel and is used for online real-time detection of the concentration of the disinfectant. The on-line concentration monitoring device comprises a light emitting diode and a photocell, wherein the light emitting diode and the photocell are oppositely arranged on the outer side wall of a section of transparent channel and sealed, the light emitting diode is connected with a constant current source circuit, the photocell is connected with a photocell amplifying circuit, and the constant current source circuit and the photocell signal amplifying circuit are both connected with a main control circuit.
The constant current source circuit comprises a low-dropout voltage regulator U5, a triode Q1, a resistor R2 and a resistor R14, wherein the ADJ end and the output end of the low-dropout voltage regulator U5 are connected with the light-emitting diode through a resistor R2, and the light-emitting diode is connected with a singlechip in the main control circuit through a triode Q1 and a resistor R14 to control the light-emitting or the closing of the light-emitting diode.
The photocell amplifying circuit comprises an operational amplifier U3, an operational amplifier U4, a resistor R10, a resistor R12, a resistor R13, a resistor R15 and a resistor R16, wherein a photocell is connected with the operational amplifier U4, the resistor R12 is connected with input and output pins of an operational amplifier U4 to form an I-V circuit, current signals received by the photocell and generated by a light source of a light emitting diode are converted into voltage, the operational amplifier U4 is connected with the input pin of the operational amplifier U3 through a resistor R10, the operational amplifier U3, the resistor R15 and the resistor R16 form a homodromous amplifying circuit, and the signals are amplified and then input to a singlechip U1 in a main control circuit through the resistor R13 to be subjected to AD conversion.
The main control circuit comprises a single chip microcomputer U1, the single chip microcomputer U1 is connected with the output end of the photocell amplifying circuit, the analog signals output by the photocell amplifying circuit are input, digital signals converted by an ADC (analog-to-digital converter) arranged in the single chip microcomputer U1 and the reference voltage of the reference source circuit are used as measuring values, and concentration values are calculated according to the measuring values.
The calculation process of the concentration value is as follows:
preparing solutions with three concentrations (generally 0ppm, 250ppm and 800ppm), obtaining measurement values of the three concentrations of the solutions and colorimeter measurement values, comparing the data of the three solutions, calculating a coefficient K according to the following formula (1), calculating a coefficient B according to the following formula (2), and then calculating the concentration of the solution to be measured according to the following formula (3);
K＝[(D23-N)/B23-(D1-N)/B1]/((D23-D1)/1000)，(1)
B＝[(D23-N)/B23]-[(D23-N)/1000]*K，(2)
Y＝(D-N)/((K*(D-N)/1000)+B))，(3)
wherein:
n: the base value is a measured value of the on-line detection circuit in a 0ppm concentration solution;
d23: the high value of the reading is the measured value of the on-line detection circuit in the high concentration (800ppm) solution;
b23: the reading high value of the colorimeter is the measured value of the colorimeter in a high-concentration (800ppm) solution;
d1: the median reading value is the measured value of the on-line detection circuit in a medium concentration (250ppm) solution;
b1: the median colorimeter reading, which is the measured value of the colorimeter in a medium concentration (250ppm) solution;
y: the actual concentration value is the actual concentration value of the solution to be detected;
d: and the sampling value is a measured value of the online detection circuit in the solution to be detected.
The main control circuit is also connected with a reference source circuit and a communication circuit.
The reference source circuit comprises a precision band-gap reference voltage source U2, a resistor R1, a resistor R5 and a triode Q2. The control end of a precise band-gap reference voltage source U2 is connected with a singlechip U1 of the main control circuit through a resistor R1, a resistor R5 and a triode Q2, and the output end of the precise band-gap reference voltage source U2 is connected with a VREF pin of a singlechip U1 to provide reference voltage for AD conversion in the singlechip U1.
The communication circuit comprises a low-power-consumption half-duplex transceiver chip U6, a resistor R11, a resistor R18, a resistor R19, a resistor R20, a resistor R21 and a capacitor C14. The input end and the control end of the low-power-consumption half-duplex transceiver chip U6 are connected with the single chip microcomputer U1 of the main control circuit, and the TTL level output by the single chip microcomputer U1 is converted into the RS-485 standard level. And carrying out real-time communication with a display screen or a controller.
And a flushing pipe for flushing the online concentration monitoring device is arranged in the pure liquid barrel, two ends of the flushing pipe are arranged in the pure liquid barrel, and the part of the flushing pipe outside the pure liquid barrel is connected with a flushing pump.
A reaction liquid level meter is arranged in the reactor. And liquid level meters are arranged in the material tank A and the material tank B to detect the liquid level of the material A.
The device is also provided with a drain pipe, the drain pipe is connected with a wastewater port of the purified water preparation device through a third valve, is connected with an exhaust port of the purified water barrel through a purified water barrel exhaust valve, is connected with an exhaust port of the reactor through a reactor exhaust valve, and is connected with the bottom of the reactor through a reactor drain valve.
The device purifies water through the purified water preparation device, and the prepared purified water enters the purified water barrel. Chlorine dioxide gas generated by the chlorine dioxide disinfectant preparation device enters the pure liquid barrel through the pure liquid barrel gas stirring pipe to be dissolved in pure water, so that pure chlorine dioxide disinfectant with a certain concentration is generated, and the disinfection pure liquid in the pure liquid barrel is extracted for customers to use.
The invention can accurately prepare the pure disinfectant with standard concentration, adopts the gas-liquid separation and internal circulation modes to prepare the disinfectant with standard concentration, carries out real-time online detection, and can measure the concentration of the disinfectant at any time to ensure that the concentration of the disinfectant is stabilized in a certain range for customers to use; the whole process is automatically controlled, the materials are taken at any time along with the production, the proportioning is automatic, and the operation is convenient and quick.
Drawings
FIG. 1 is a schematic view of the overall structure of the equipment for preparing pure chlorine dioxide disinfectant in medical public places according to the invention.
FIG. 2 is a schematic view of the operation principle of the pure chlorine dioxide disinfectant liquid preparation equipment in the medical public place of the invention.
FIG. 3 is a schematic diagram of a constant current source circuit of the on-line concentration monitoring device of the present invention.
FIG. 4 is a schematic diagram of a photocell signal amplification circuit of the on-line concentration monitoring device of the present invention.
Fig. 5 is a schematic diagram of a main control circuit of the online concentration monitoring device in the invention.
FIG. 6 is a schematic diagram of a reference source of the on-line concentration monitoring device of the present invention.
FIG. 7 is a schematic diagram of a communication circuit of the on-line concentration monitoring device of the present invention.
In the figure: 1. a display screen; 2.a liquid taking port; 3. an electric control chamber; 4.a raw material chamber; 5. a universal wheel; 6. a sewage draining outlet; 7.a water supply port; 8. a cabinet body; 9. a first valve; 10. a second valve; 11. a pre-filter; 12. a pressure switch; 13. a pressurizable tank; 14. a water inlet; 15. a sixth valve; 16. a circulating air pump; 17. a liquid outlet pump; 18. a pure liquid barrel exhaust valve; 19. a flush pump; 20. an online concentration monitoring device; 21. a sewage tank; 22. a pure liquid barrel; 23. a pure liquid barrel gas stirring pipe; 24. a first liquid level meter; 25. a second level gauge; 26. a third liquid level meter; 27. a fourth liquid level meter; 28. a reactor drain valve; 29. a reactor gas stirring pipe; 30. a reactor; a B gauge; a level gauge; b raw material; a feedstock; 35. a reactor level gauge; a B liquid pump; a liquid pump; 38. a reaction kettle; a B solenoid valve; a solenoid valve a; 41. a reactor vent valve; 42. a third valve; 43. a reverse osmosis unit; 44. a fourth valve; 45. a fifth valve; 46. a booster pump.
Detailed Description
As shown in figure 1, the equipment for preparing the pure chlorine dioxide disinfectant in the medical public place comprises a cabinet body 8, wherein a liquid taking port 2 is arranged at one side of the upper part of the cabinet body 8, and a sewage draining port 6 and a water supply port 7 are arranged at the lower part of the other side of the cabinet body; the bottom of the cabinet body 8 is provided with universal wheels 5, and the top is provided with a display screen 1; the cabinet body 8 is internally provided with an electric control chamber 3 and a raw material chamber 4, the opening doors of the electric control chamber 3 and the raw material chamber 4 are positioned in front of the cabinet body 8, and the opening door of the electric control chamber 3 is arranged at the upper part.
As shown in fig. 2, a pure liquid barrel 22, a reactor 30, a raw material tank a 34, a raw material tank B33 and a sewage pipe are further arranged in the cabinet body 8.
A pumping pipe, a flushing pipe and a purified water pipe are arranged in the pure liquid barrel 22, and a first liquid level meter 24, a second liquid level meter 25, a third liquid level meter 26 and a fourth liquid level meter 27 are sequentially arranged in the pure liquid barrel 22 from bottom to top and are used for respectively detecting four liquid levels. The pure liquid barrel 22 is also provided with an online concentration monitoring device 20 for monitoring the concentration of the disinfectant, and the specific monitoring principle will be described in detail later. The water pumping pipe is connected with the liquid outlet pump 17 and is used for discharging the prepared disinfectant. The flushing pipe is connected with a flushing pump 19 and is arranged outside the pure liquid barrel 22, two ends of the flushing pipe are arranged at the lower part of the pure liquid barrel 22, one end of the flushing pipe is arranged at the position of the online concentration monitoring device 20, and the surface of the online concentration monitoring device 20 is flushed. One end of the purified water pipe is a water inlet 14 (namely, the water supply opening 7 is arranged on the side surface of the cabinet body 8), the other end of the purified water pipe extends into the purified water barrel 22, the purified water pipe is connected with a purified water preparation device, the purified water preparation device comprises a prefilter 11, a booster pump 46, a fifth valve 45, a reverse osmosis unit 43, a fourth valve 44, a pressure switch 12 and a sixth valve 15 which are sequentially connected onto the purified water pipe, and the water inlet side and the water outlet side of the reverse osmosis unit 43 are respectively connected with a pressure tank 13 through a first valve 9 and a second valve 10. The purified water preparation device can also adopt the existing purified water machines with various structures, and the purified water machines contain a pressurizing tank 13. The top of the pure liquid barrel 22 is connected with a sewage draining pipe through a pure liquid barrel exhaust valve 18. The sewage outlet of the reverse osmosis unit 43 is connected with a sewage discharge pipe, and the sewage discharge pipe is connected with a third valve 42.
A pure liquid barrel gas stirring pipe 23 and a reactor gas stirring pipe 29 are connected between the pure liquid barrel 22 and the reactor 30, and a circulating air pump 16 is connected on the reactor gas stirring pipe 29.
A reaction kettle 38 is arranged at the upper part in the reactor 30, the top of the reactor 30 is connected with a drain pipe through a reactor exhaust valve 41, and the bottom of the reactor 30 is connected with the drain pipe through a reactor drain valve 28. A reaction liquid level meter 35 is provided in the reactor 30. The reaction vessel 38 may be a turn-over type reaction vessel (the turning-over mechanism may be a steering gear) to pour the reaction solution into the reactor 30. The reaction vessel 38 may be any other reaction vessel.
The A raw material tank 34 is connected to the reaction vessel 38 through an A liquid pump 37 and an A electromagnetic valve 40, and the A raw material tank 34 is provided with an A liquid level meter 32 for detecting the liquid level of the A raw material. The A liquid level meter 32 can adopt a reed switch, and an alarm circuit is connected when the liquid level is too low. And when the A raw material in the A raw material tank 34 is lower than the A liquid level, an alarm is given.
The B raw material tank 33 is connected to the reaction vessel 38 via a B liquid pump 36 and a B electromagnetic valve 39, and the B raw material tank 33 is provided with a B level meter 31 for detecting the level of the B raw material. The liquid level meter 31B adopts a reed switch, and an alarm circuit is connected when the liquid level is too low. And when the B raw material in the B raw material tank 33 is lower than the B liquid level, an alarm is given.
The sewage drain is connected to the sewage tank 21 for collecting waste liquid generated from the reactor 30, waste water generated from the reverse osmosis unit 43, and waste gas generated from the pure liquid barrel 22 and the reactor 30.
The on-line concentration monitoring device 20 of the present invention, as shown in fig. 3, 4, 5, 6 and 7, includes a light emitting diode (D3 in fig. 3 is a light emitting diode) and a photocell (D2 in fig. 4 is a photocell), which are oppositely disposed on the outer side wall of a transparent channel and sealed, wherein the transparent channel may be a glass tube with two open ends. The light emitting diode is connected with the constant current source circuit, the photocell is connected with the photocell amplifying circuit, and the constant current source circuit and the photocell signal amplifying circuit are both connected with the main control circuit.
As shown in fig. 3, the constant current source circuit includes a low dropout voltage regulator U5, a transistor Q1, a resistor R2, a resistor R8, a resistor R14, a capacitor C3, a capacitor C18, and a capacitor C19, and D3 is a light emitting diode. The input terminal VIN of the low dropout voltage regulator U5 inputs a voltage of 5V through a resistor R8 and is grounded through a capacitor C18. The voltage of the ADJ end and the output end VOUT is 1.25V, the two ends (the ADJ end and the output end) are respectively connected with the resistor R2 and the capacitor C3, and the light-emitting diode D3 is connected with the resistor R2 and can provide constant current for the light-emitting diode D3. The output terminal VOUT is grounded through a capacitor C19. The light emitting diode D3 is connected with the singlechip U1 in the main control circuit through the triode Q1 and the resistor R14, and the light emitting diode D3 can be controlled to emit light or be turned off through the input pin P2.6 of the singlechip U1. Normally, the D3 is in a closed state, and the light-emitting diode D3 is turned on to emit light during detection, so that the problems of heat generation and signal output drift of the light-emitting diode due to long-time work can be solved.
As shown in fig. 4, the photocell amplifying circuit includes an operational amplifier U3, an operational amplifier U4, a resistor R10, a resistor R12, a resistor R13, a resistor R15, a resistor R16, a capacitor C1, a capacitor C2, a capacitor C10, a capacitor C11 and a photocell D2, wherein the resistor R12 is connected with input and output pins of the operational amplifier U4 to form an I-V circuit, and converts a current signal received by the photocell and generated by the light source of the light emitting diode into a voltage, and then is connected with the input pin of the operational amplifier U3 through the resistor R10. The resistor R15, the resistor R16 and the operational amplifier U3 form a equidirectional amplifying circuit, and the signals are amplified and then input to an AOUT pin of a singlechip U1 in the main control circuit through the resistor R13 to be subjected to AD conversion.
As shown in fig. 5, the main control circuit includes a single chip microcomputer U1, a capacitor C5, a capacitor C6, a capacitor C8 and a resistor R3. A pin P1.0 of a singlechip U1 is input into an analog signal output by a photocell amplifying circuit, a 12-bit ADC arranged in the singlechip U1 and a reference voltage adopt 2.5V of a reference source circuit, a converted digital signal (namely a read AD value of the singlechip U1) is used as a measurement value (N, D23, D1 and D in a calculation formula) of a chlorine dioxide on-line detection circuit, a concentration value is calculated through an algorithm, the singlechip U1 serial port RX is connected with a communication circuit, and the concentration value is sent to a display screen 1 or a controller.
The chlorine dioxide concentration calculation adopts the solution with three prepared concentrations (generally 0ppm, 250ppm and 800ppm), and obtains the measurement values of the concentrations of the three solutions and the colorimeter measurement value, through comparison of the data of the three solutions, the coefficient K is calculated according to the following formula (1), the coefficient B is calculated according to the following formula (2), and then the concentration of the solution to be measured is calculated according to the following formula (3).
K＝[(D23-N)/B23-(D1-N)/B1]/((D23-D1)/1000)，(1)
B＝[(D23-N)/B23]-[(D23-N)/1000]*K，(2)
Y＝(D-N)/((K*(D-N)/1000)+B))，(3)
Wherein:
n: the base value is a measured value of the on-line detection circuit in a 0ppm concentration solution;
d23: the high value of the reading is the measured value of the on-line detection circuit in the high concentration (800ppm) solution;
b23: the reading high value of the colorimeter is the measured value of the colorimeter in a high-concentration (800ppm) solution;
d1: the median reading value is the measured value of the on-line detection circuit in a medium concentration (250ppm) solution;
b1: the median colorimeter reading, which is the measured value of the colorimeter in a medium concentration (250ppm) solution;
y: the actual concentration value is the actual concentration value of the solution to be detected;
d: the sampling value is a measurement value of the online detection circuit in the solution to be detected;
the measured values (N, D23, D1 and D) of the chlorine dioxide on-line detection circuit are analog signals output by a photocell amplifying circuit and input through a pin P1.0 of a U1 of the single chip microcomputer, and the reference voltage is converted into digital signals, namely read AD values of the single chip microcomputer U1, by a 12-bit ADC in the single chip microcomputer U1 and 2.5V of a reference source circuit.
As shown in fig. 6, the reference source circuit includes a precision bandgap reference voltage source U2, a resistor R1, a resistor R4, a resistor R5, a capacitor C12, a capacitor C13, a capacitor C14, and a transistor Q2. The input end of a precise band-gap reference voltage source U2 is connected with a 5V power supply, a pin P1.3 of a singlechip U1 is connected with the control end of the precise band-gap reference voltage source U2 through a resistor R1, a resistor R5 and a triode Q2, the output of a reference source can be controlled by the singlechip U1, the output of the reference source is connected with a VREF pin of the singlechip U1, and reference voltage is provided for AD conversion in the singlechip U1.
As shown in fig. 7, the communication circuit includes a low power consumption half-duplex transceiver chip U6, a resistor R11, a resistor R18, a resistor R19, a resistor R20, a resistor R21, and a capacitor C14. An input pin of the low-power-consumption half-duplex transceiver chip U6 is connected with RX and TX signals of the single chip microcomputer U1, a control pin is connected with P0.6 of the single chip microcomputer U1, and a TTL level output by the single chip microcomputer U1 can be converted into an RS-485 standard level to be communicated with the display screen 1 or the controller in real time.
The various chips referred to above are prior art.
During detection, the light transmittance is influenced by the change of the concentration of the disinfectant, the degree of illumination of the light emitting diode D3 is changed, the photocell D2 receives a signal sent by the light emitting diode D3, the photocell amplifying circuit in the online detection circuit amplifies the signal of the photocell and inputs the amplified signal to the singlechip U1 in the main control circuit for AD conversion, the converted digital signal (namely the read AD value of the singlechip U1) is used as the measurement value of the chlorine dioxide online detection circuit, the singlechip U1 calculates the concentration value according to the stored algorithm, the communication circuit in the online detection circuit sends the concentration value to the display screen 1, and the concentration of the current disinfectant is displayed on the display screen in real time. The single chip microcomputer U1 controls the amount of chlorine dioxide gas discharged into the disinfectant barrel by the chlorine dioxide reactor.
Whole equipment can be controlled by singlechip U1, and each electronic part (each valve (all valves all adopt electric valve), the tilting mechanism of pump, reation kettle etc.) is as drive module by the relay, and singlechip U1 communicates with online concentration monitoring devices 20 through 485 communication unit, acquires the real-time concentration of pure liquid, shows on display screen 1, controls the relay action through the judgement to concentration value and controls relevant pump valve, prepares the pure liquid of required concentration.
The operation of the above-described device is as follows.
Firstly, the water quality is purified by a purified water preparation device.
The booster pump 46 is activated, and the third valve 42, the fourth valve 44, the fifth valve 45, and the sixth valve 15 are opened. In a normal water production state, a water source (tap water) entering from the water supply port 14 is primarily filtered by the pre-filter 11 to remove larger impurities. The purified water with impurities filtered out enters the reverse osmosis unit 43 through the fifth valve 45 under the action of the booster pump 46, and enters the pure liquid barrel 22 through the fourth valve 44, the pressure switch 12 and the sixth valve 15.
When the normal water producing state is finished, the sixth valve 15 at the pure water outlet is closed and the second valve 10 is opened. The purified water produced by the reverse osmosis unit 43 is stored in the pressurizing tank 13 through the second valve 10 until the stored water pressure causes the pressure switch 12 to be activated, cutting off the power supply circuit, turning off the pressurizing pump 46, and stopping the water production. The first valve 9 is opened and the purified water is returned from the pressurized tank 13 through the first valve 9 to the water inlet of the reverse osmosis unit 43, the wastewater is removed at the surface of the reverse osmosis membrane, and is introduced into the sewage drain through the third valve 42 and discharged to the sewage tank 21, thereby realizing the back flushing of the reverse osmosis unit 43.
When the water storage pressure in the pressurizing tank 13 is reduced to a certain value, the pressure switch 12 is switched on the power supply circuit again, and the normal water production state is entered again, so that water is circulated. The whole process of automatic water purification is that the manual work is opened every time and is intake, self-cleaning, clean the back automatic recovery original state of accomplishing to use next time.
Chlorine dioxide is then generated as follows.
The raw material A in the raw material tank A34 is pumped into a reaction kettle 38 through an A liquid pump 37 and an A electromagnetic valve 40, the raw material B in the raw material tank B33 is pumped into the reaction kettle 38 through a B liquid pump 36 and a B electromagnetic valve 39, and the two raw materials are reacted in the reaction kettle 38 according to a ratio. After a certain time of reaction, the reaction solution in the reaction vessel 38 is poured into the reactor 30. The reaction kettle 38 is circulated again for the next reaction. And when the liquid levels of the raw material A and the raw material B are too low, alarming for replenishing. When the liquid level meter 35 of the reactor detects that the liquid level in the reactor 30 is too high, an alarm is given, the liquid discharge valve 28 of the reactor is controlled to be opened, and redundant residual liquid in the reactor 30 is discharged.
And starting the circulating air pump 16, allowing the gas in the pure liquid barrel 22 to enter the reactor 30 through the reaction chamber gas stirring pipe 29, stirring the reaction stock solution in the reactor 30 to perform gas-liquid separation on the reaction solution, allowing the generated chlorine dioxide gas to enter the pure liquid barrel 22 through the pure liquid barrel gas stirring pipe 23, dissolving the chlorine dioxide gas in the pure water in the pure liquid barrel 22 to generate a pure chlorine dioxide disinfectant with a certain concentration, and detecting the concentration of the pure liquid in the pure liquid barrel 22 in real time. The pure disinfection liquid in the pure liquid barrel 22 is pumped by the liquid outlet pump 17 for the customer to use.
Gas circulates in two closed containers, namely a reactor 30 and a pure liquid barrel 22 through a reaction chamber gas stirring pipe 29 and a pure liquid barrel gas stirring pipe 23, gas extracted from the reactor 30 is directly merged into the pure liquid barrel 22 through the pure liquid barrel gas stirring pipe 23, and gas extracted from the pure liquid barrel 22 directly enters the reactor 30 through the reaction chamber gas stirring pipe 29 and is not in contact with outside air, so that internal circulation type gas-liquid separation is formed.
The online concentration monitoring device 20 detects the concentration of the pure liquid in the pure liquid barrel 22 in real time, and the inner surface and the outer surface of the transparent channel in the online concentration monitoring device 20 are regularly washed through the washing pump 19. The first level gauge 24, the second level gauge 25, the third level gauge 26, and the fourth level gauge 27 detect the liquid levels inside the pure water tank 22 and display them on the display screen in real time, and by detecting a plurality of liquid levels (four liquid levels) in the pure water tank 22, display the current remaining amount on the display screen in real time. And when water is short, the sixth valve 15 is controlled to open for automatic water supplement, and when the water is full, the sixth valve 15 is controlled to close.
The reactor drain valve 28 is responsible for draining excess raffinate from the reactor. The excess gas in the reactor 30 and the pure liquid tank 22 is discharged through the pure liquid tank vent valve 18 and the reactor vent valve 41, respectively, and the gas pressure in the reactor 30 and the pure liquid tank 22 is adjusted.
The device detects the concentration of the disinfectant in the pure liquid on line and displays the concentration in a digital mode, the disinfectant is started by one key, all parameters do not need to be changed after being set, and the disinfectant runs automatically after being started. The modules are reasonably distributed, and the chlorine dioxide disinfectant is accurately prepared. The bowl-type reaction kettle structure is adopted to prepare the disinfectant, so that the conversion utilization rate of raw materials is improved. The chlorine dioxide is efficiently purified by the internal circulation type gas-liquid separation by circulating in two containers of a closed reactor 30 and a pure liquid barrel 22.
Claims (10)
1. A pure chlorine dioxide antiseptic solution preparation equipment for medical public places is characterized in that: the device comprises a purified water preparation device, a pure liquid barrel and a chlorine dioxide gas preparation device, wherein the pure liquid barrel is connected with a water outlet of the purified water preparation device, a pure liquid barrel gas stirring pipe is connected between the pure liquid barrel and the chlorine dioxide gas preparation device, and a liquid outlet pipe is arranged at the upper part of the pure liquid barrel.
2. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 1, wherein: the purified water preparation device comprises a prefilter, a booster pump, a fifth valve, a reverse osmosis unit, a fourth valve, a pressure switch and a sixth valve which are sequentially connected, wherein the first valve and the second valve are respectively connected with the water inlet side and the water outlet side of the reverse osmosis unit.
3. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 1, wherein: the chlorine dioxide gas preparation device comprises a reactor, a raw material tank A and a raw material tank B; a reaction kettle is arranged in the reactor, and the raw material tank A and the raw material tank B are respectively connected with the reaction kettle through pumps; and a reactor gas stirring pipe is connected between the reactor and the pure liquid barrel, and a circulating air pump is connected on the reactor gas stirring pipe.
4. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 1, wherein: the pure liquid barrel is also internally provided with an online concentration monitoring device, the online concentration monitoring device comprises a light emitting diode and a photocell, the light emitting diode and the photocell are oppositely arranged on the outer side wall of the section of the transparent channel and are sealed, the light emitting diode is connected with a constant current source circuit, the photocell is connected with a photocell amplifying circuit, and the constant current source circuit and the photocell signal amplifying circuit are both connected with a main control circuit.
5. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 4, wherein: the constant current source circuit comprises a low-dropout voltage regulator U5, a triode Q1, a resistor R2 and a resistor R14, wherein the ADJ end and the output end of the low-dropout voltage regulator U5 are connected with the light-emitting diode through a resistor R2, and the light-emitting diode is connected with a singlechip in the main control circuit through a triode Q1 and a resistor R14 to control the light-emitting or the closing of the light-emitting diode.
6. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 4, wherein: the photocell amplifying circuit comprises an operational amplifier U3, an operational amplifier U4, a resistor R10, a resistor R12, a resistor R13, a resistor R15 and a resistor R16, wherein a photocell is connected with the operational amplifier U4, the resistor R12 is connected with input and output pins of an operational amplifier U4 to form an I-V circuit, current signals received by the photocell and generated by a light source of a light emitting diode are converted into voltage, the operational amplifier U4 is connected with the input pin of the operational amplifier U3 through a resistor R10, the operational amplifier U3, the resistor R15 and the resistor R16 form a homodromous amplifying circuit, and the signals are amplified and then input to a singlechip U1 in a main control circuit through the resistor R13 to be subjected to AD conversion.
7. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 4, wherein: the master control circuit comprises a single chip microcomputer U1, the single chip microcomputer U1 is connected with the output end of the photocell amplifying circuit, the analog signals output by the photocell amplifying circuit are input, digital signals converted by an ADC (analog to digital converter) arranged in the single chip microcomputer U1 and the reference voltage of the reference source circuit are used as measuring values, and concentration values are calculated according to the measuring values;
the calculation process of the concentration value is as follows:
preparing solutions with three concentrations (generally 0ppm, 250ppm and 800ppm), obtaining measurement values of the three concentrations of the solutions and colorimeter measurement values, comparing the data of the three solutions, calculating a coefficient K according to the following formula (1), calculating a coefficient B according to the following formula (2), and then calculating the concentration of the solution to be measured according to the following formula (3);
K＝[(D23-N)/B23-(D1-N)/B1]/((D23-D1)/1000)， (1)
B＝[(D23-N)/B23]-[(D23-N)/1000]*K， (2)
Y＝(D-N)/((K*(D-N)/1000)+B))， (3)
wherein:
n: the base value is a measured value of the on-line detection circuit in a 0ppm concentration solution;
d23: the high value of the reading is the measured value of the on-line detection circuit in the high concentration (800ppm) solution;
b23: the reading high value of the colorimeter is the measured value of the colorimeter in a high-concentration (800ppm) solution;
d1: the median reading value is the measured value of the on-line detection circuit in a medium concentration (250ppm) solution;
b1: the median colorimeter reading, which is the measured value of the colorimeter in a medium concentration (250ppm) solution;
y: the actual concentration value is the actual concentration value of the solution to be detected;
d: and the sampling value is a measured value of the online detection circuit in the solution to be detected.
8. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 4, wherein: the master control circuit is also connected with a reference source circuit and a communication circuit; the reference source circuit comprises a precision band-gap reference voltage source U2, a resistor R1, a resistor R5 and a triode Q2. The control end of a precise band-gap reference voltage source U2 is connected with a singlechip U1 of the main control circuit through a resistor R1, a resistor R5 and a triode Q2, and the output end of the precise band-gap reference voltage source U2 is connected with a VREF pin of a singlechip U1 to provide reference voltage for AD conversion in the singlechip U1; the communication circuit comprises a low-power-consumption half-duplex transceiver chip U6, a resistor R11, a resistor R18, a resistor R19, a resistor R20, a resistor R21 and a capacitor C14. The input end and the control end of the low-power-consumption half-duplex transceiver chip U6 are connected with the single chip microcomputer U1 of the main control circuit, and the TTL level output by the single chip microcomputer U1 is converted into the RS-485 standard level.
9. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 1, wherein: and a flushing pipe for flushing the concentration online concentration monitoring device is arranged in the pure liquid barrel, two ends of the flushing pipe are arranged in the pure liquid barrel, and the part of the flushing pipe outside the pure liquid barrel is connected with a flushing pump.
10. The apparatus for producing pure chlorine dioxide disinfectant in public places for medical use according to claim 1, wherein: the device is characterized by also comprising a drain pipe, wherein the drain pipe is connected with a wastewater port of the pure water preparation device through a third valve, is connected with an exhaust port of the pure water barrel through an exhaust valve of the pure water barrel, is connected with an exhaust port of the chlorine dioxide gas preparation device through an exhaust valve of the reactor, and is connected with the bottom of the chlorine dioxide gas preparation device through a drain valve of the reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010533294.XA CN111569689A (en) | 2020-06-11 | 2020-06-11 | Equipment for preparing pure chlorine dioxide disinfectant in medical public place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010533294.XA CN111569689A (en) | 2020-06-11 | 2020-06-11 | Equipment for preparing pure chlorine dioxide disinfectant in medical public place |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111569689A true CN111569689A (en) | 2020-08-25 |
Family
ID=72110617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010533294.XA Withdrawn CN111569689A (en) | 2020-06-11 | 2020-06-11 | Equipment for preparing pure chlorine dioxide disinfectant in medical public place |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111569689A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439082A (en) * | 2020-11-10 | 2021-03-05 | 珠海格力电器股份有限公司 | Concentration detection circuit, disinfectant manufacturing machine and control method thereof |
-
2020
- 2020-06-11 CN CN202010533294.XA patent/CN111569689A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439082A (en) * | 2020-11-10 | 2021-03-05 | 珠海格力电器股份有限公司 | Concentration detection circuit, disinfectant manufacturing machine and control method thereof |
| CN112439082B (en) * | 2020-11-10 | 2022-04-26 | 珠海格力电器股份有限公司 | Concentration detection circuit, disinfectant manufacturing machine and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104155928A (en) | Operation control method for sewage treatment | |
| CN212236781U (en) | Equipment for preparing pure chlorine dioxide disinfectant in medical public place | |
| CN111569689A (en) | Equipment for preparing pure chlorine dioxide disinfectant in medical public place | |
| CN105548039A (en) | On-line detection device and detection method for activated sludge denitrification rate | |
| CN111551526A (en) | External chlorine dioxide disinfectant concentration automatic detection device | |
| CN205472644U (en) | Energy -efficient many functional type chlorine dioxide generator disinfecting equipment | |
| KR20210012236A (en) | Storing type manufacturing apparatus of aqueous solution of chlorine dioxide | |
| JP2007155372A (en) | Optical measuring instrument | |
| CN201756484U (en) | Automatic microcomputer monitoring control device for sewage treatment | |
| CN212410426U (en) | High-sensitivity chlorine dioxide detection device | |
| CN109231437A (en) | A kind of online quick monitoring warning device of saprobia toxicity | |
| CN212459365U (en) | Built-in chlorine dioxide disinfectant concentration on-line detection device | |
| CN212459410U (en) | External chlorine dioxide disinfectant concentration automatic detection device | |
| CN213924176U (en) | Ozone heterogeneous catalytic oxidation comprehensive test platform | |
| CN115215408A (en) | Industrial wastewater treatment photocatalysis purifier | |
| CN111537441A (en) | Chlorine dioxide disinfectant concentration on-line detection circuit | |
| CN203938553U (en) | The large Capacity Integration pure water of use for laboratory waterworks | |
| CN111474115A (en) | Built-in chlorine dioxide disinfectant concentration on-line detection device | |
| CN108751344A (en) | A kind of batch type processing system and treatment process of industrial wastewater middle and high concentration COD | |
| CN212459366U (en) | Chlorine dioxide disinfectant concentration on-line detection circuit | |
| JP2003080257A (en) | Apparatus for producing electrolytic water | |
| CN219567751U (en) | Box-type integrated ultrafiltration water purifying device | |
| KR100511225B1 (en) | A multi-continuous analyzer of our, sour and do using do and mlss meters attached to a submerged reactor | |
| CN218445437U (en) | Secondary water supply water quality monitoring device | |
| CN208791246U (en) | A kind of batch type processing system of industrial wastewater middle and high concentration COD |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200825 |