CN114671488A - Residual chlorine decomposition and disinfection equipment and control method thereof - Google Patents
Residual chlorine decomposition and disinfection equipment and control method thereof Download PDFInfo
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- CN114671488A CN114671488A CN202210232762.9A CN202210232762A CN114671488A CN 114671488 A CN114671488 A CN 114671488A CN 202210232762 A CN202210232762 A CN 202210232762A CN 114671488 A CN114671488 A CN 114671488A
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 291
- 239000000460 chlorine Substances 0.000 title claims abstract description 291
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 290
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 21
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 230000000249 desinfective effect Effects 0.000 claims abstract description 8
- 230000001954 sterilising effect Effects 0.000 claims abstract description 4
- 239000010453 quartz Substances 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 230000008676 import Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 37
- 125000001309 chloro group Chemical group Cl* 0.000 abstract description 15
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 8
- 239000012528 membrane Substances 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000006298 dechlorination reaction Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/326—Lamp control systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Abstract
The invention discloses residual chlorine decomposition and disinfection equipment and a control method thereof, and the residual chlorine decomposition and disinfection equipment comprises an ultraviolet reactor for decomposing residual chlorine in water and sterilizing and disinfecting, an inlet residual chlorine detection device arranged at an inlet of the ultraviolet reactor and used for monitoring the concentration of the residual chlorine at the inlet in real time, an outlet residual chlorine detection device arranged at an outlet of the ultraviolet reactor and used for monitoring the concentration of the residual chlorine at the outlet in real time, and an ultraviolet control cabinet used for controlling the irradiation intensity of the ultraviolet reactor, wherein the ultraviolet reactor can release medium-pressure full-band ultraviolet rays and the ultraviolet intensity is adjustable. Setting an inlet target residual chlorine concentration, an outlet target residual chlorine concentration and default operating power of the ultraviolet reactor through an ultraviolet control cabinet; automatically controlling the ultraviolet reactor to pre-adjust the ultraviolet intensity by comparing the inlet residual chlorine concentration with the inlet target residual chlorine concentration; through comparing export chlorine residue concentration with export target chlorine residue concentration, the automatic control ultraviolet reactor finely tunes ultraviolet intensity, until export chlorine residue concentration is unanimous with export target chlorine residue concentration.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to residual chlorine decomposition and disinfection equipment and a control method thereof.
Background
In the water treatment process, the residual chlorine disinfection technology is widely applied, about 80% of countries or regions all over the world use chlorine to disinfect municipal tap water, and the common method is to introduce chlorine or chlorine dioxide into tap water to form hypochlorous acid and hypochlorite roots with super-strong oxidation capacity, so that the effect of killing various bacteria is achieved. However, since residual chlorine exists in water treated by the residual chlorine disinfection technology, a reverse osmosis membrane (RO membrane) is important for purifying water quality in a purified water production facility, and generally, the reverse osmosis membrane cannot withstand oxidation by residual chlorine, it is necessary to remove residual chlorine in water.
The traditional residual chlorine removal method usually adopts an active carbon filtration adsorption method or NaHSO in a pretreatment stage3The reduction method removes residual chlorine, but the activated carbon filtration and adsorption method ensures the dechlorination effect by regularly replacing the activated carbon, and has the risks of microorganism breeding and pollution; and NaHSO3The reduction method requires addition of chemicals to perform a reduction reaction, and the intervention of a large amount of foreign chemical substances increases the processing load of a rear-end purification system (RO/EDI system), and seriously affects the service life of the RO membrane.
With the further development of the technology, researchers find that medium-pressure full-wave-band ultraviolet rays can simultaneously decompose residual chlorine in water and disinfect the water, and can meet the requirements of membrane treatment and/or other processes on the concentration of residual chlorine in water and/or microorganisms; however, because the ultraviolet intensity required by the ultraviolet to decompose the residual chlorine is high and the power consumption is large, the existing ultraviolet residual chlorine decomposition technology can not adjust the ultraviolet intensity, the energy consumption is easily too high, the energy is wasted, the water quality is easily affected negatively, or the power is insufficient, and the residual chlorine decomposition and disinfection effects are difficult to guarantee.
Disclosure of Invention
The invention aims to provide residual chlorine decomposition and disinfection equipment and a control method thereof, and aims to solve the problems that the existing ultraviolet residual chlorine decomposition technology cannot easily cause over-high energy consumption, waste energy or insufficient power, and the residual chlorine decomposition and disinfection effects are difficult to guarantee.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
residual chlorine decomposes disinfecting equipment, including be used for decomposing aquatic residual chlorine and the sterile ultraviolet reactor that disinfects, set up in the import residual chlorine detection device that is used for real-time supervision import residual chlorine concentration of ultraviolet reactor import, set up in the export residual chlorine detection device that is used for real-time supervision export residual chlorine concentration of ultraviolet reactor export, be used for controlling ultraviolet reactor irradiation strength's ultraviolet control cabinet, ultraviolet reactor can release middling pressure full-wave band ultraviolet ray and ultraviolet intensity is adjustable, ultraviolet reactor, import residual chlorine detection device and export residual chlorine detection device all with ultraviolet control cabinet electric connection.
Furthermore, the ultraviolet reactor comprises a cavity, a medium-pressure full-waveband ultraviolet lamp tube arranged in the cavity, an ultraviolet intensity sensor and a temperature sensor, wherein the medium-pressure full-waveband ultraviolet lamp tube, the ultraviolet intensity sensor and the temperature sensor are all electrically connected with the ultraviolet control cabinet.
Furthermore, the medium-voltage full-waveband ultraviolet lamp tube is arranged in a quartz sleeve, the quartz sleeve is arranged in the cavity, and sealing parts are arranged between two ends of the quartz sleeve and the cavity.
Furthermore, a cleaning mechanism is sleeved on the quartz sleeve, and a cleaning driving motor used for driving the cleaning mechanism to perform reciprocating cleaning along the quartz sleeve is arranged outside the cavity.
Further, the ultraviolet control cabinet comprises a cabinet body, a CPU, a temperature control conversion device, an analog input/output module, a digital input/output module, a signal conversion device, an ultraviolet ballast and a human-computer interface, wherein the CPU, the temperature control conversion device, the analog input/output module, the digital input/output module, the signal conversion device and the ultraviolet ballast are arranged in the cabinet body, the human-computer interface is arranged on the cabinet body, the medium-voltage full-waveband ultraviolet lamp tube, the ultraviolet intensity sensor and the temperature sensor are respectively electrically connected with the ultraviolet ballast, the signal conversion device and the temperature control conversion device, the ultraviolet intensity sensor, the inlet residual chlorine detection device, the outlet residual chlorine detection device, the temperature control conversion device and the signal conversion device are electrically connected with the input end of the analog input/output module, the human-computer interface is electrically connected with the input end of the digital input/output module, the output end of the analog input/output module, the output end of the digital input/output module, the human-computer interface and the computer interface, The ultraviolet ballasts are electrically connected with the CPU.
Furthermore, the input end of the digital input/output module is also connected with a wireless communication module for receiving remote control signals.
Further, the cabinet body is also provided with a cooling fan for heat dissipation.
Furthermore, a power supply device for power supply input, a power supply protection device for electrical protection, an action execution device for starting and stopping the ultraviolet ballast and a voltage reduction device for reducing the power supply voltage to 24V are further arranged in the cabinet body, and the voltage reduction device is electrically connected with the CPU.
Further, the action performing device comprises a contactor and a motor protector.
Furthermore, the power protection device comprises a circuit breaker, an earth leakage protection device and a fuse.
The control method of the residual chlorine decomposition and disinfection equipment comprises the following steps:
setting an inlet target residual chlorine concentration, an outlet target residual chlorine concentration and default operating power of the ultraviolet reactor through the ultraviolet control cabinet;
comparing the inlet residual chlorine concentration measured by the inlet residual chlorine detection device with the inlet target residual chlorine concentration through the ultraviolet control cabinet, and automatically controlling the ultraviolet reactor to adjust the ultraviolet intensity in advance according to the comparison result;
and comparing the outlet residual chlorine concentration measured by the outlet residual chlorine detection device with the outlet target residual chlorine concentration by the ultraviolet control cabinet, and automatically controlling the ultraviolet reactor to finely adjust the ultraviolet intensity according to the comparison result until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration.
Further, when the concentration of the inlet residual chlorine is stable, the ultraviolet control cabinet controls the ultraviolet reactor to operate according to default operating power, and then the ultraviolet reactor is finely adjusted to operate at the optimal power according to the comparison result of the concentration of the outlet residual chlorine and the outlet target residual chlorine;
when the concentration of the inlet residual chlorine is greatly lower than or higher than the concentration of the inlet target residual chlorine, the running power of the ultraviolet reactor is automatically preset according to the comparison result of the concentration of the inlet residual chlorine and the concentration of the inlet target residual chlorine, and then the running power is finely adjusted to the optimal power according to the comparison result of the concentration of the outlet residual chlorine and the concentration of the outlet target residual chlorine.
The invention has the following beneficial effects: the invention receives water containing residual chlorine through an ultraviolet reactor, decomposes residual chlorine in the water and disinfects the water simultaneously by releasing medium-pressure full-waveband ultraviolet rays, an inlet residual chlorine detection device at an inlet of the ultraviolet reactor and an outlet residual chlorine detection device at an outlet of the ultraviolet reactor respectively monitor the inlet residual chlorine concentration and the outlet residual chlorine concentration in real time and transmit the concentrations to an ultraviolet control cabinet in real time, the ultraviolet control cabinet can set an inlet target residual chlorine concentration and an outlet target residual chlorine concentration according to the water treatment standard or treatment requirement, then compare the measured inlet residual chlorine concentration with the inlet target residual chlorine concentration, compare the measured outlet residual chlorine concentration with the outlet target residual chlorine concentration, control the ultraviolet reactor to adjust the ultraviolet intensity according to the comparison result until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or slightly lower than the outlet target residual chlorine concentration, so that the equipment achieves the optimal running power and running state, so as to avoid overhigh energy consumption, save energy and avoid causing negative influence on water quality while ensuring the decomposition and disinfection effects of residual chlorine.
In addition, the method can thoroughly inactivate the source water microorganisms while efficiently removing the residual chlorine through the medium-pressure full-waveband ultraviolet rays, avoid the RO system from being polluted by the microorganisms, eliminate the risk of microorganism breeding and pollution from the source and improve the water quality; and because the residual chlorine is reduced without adding chemicals, the intervention of external chemical substances is avoided, the treatment load of subsequent treatment equipment can be effectively reduced, the scaling problem of an RO system is avoided, and the service life of the RO membrane is ensured.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of an ultraviolet reactor according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an ultraviolet control cabinet according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the operating power regulation of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, in one embodiment, the residual chlorine decomposition and disinfection apparatus of the present invention includes an ultraviolet reactor 100 for decomposing residual chlorine in water and performing sterilization and disinfection, an inlet residual chlorine detection device 200 disposed at an inlet of the ultraviolet reactor 100 for monitoring a concentration of inlet residual chlorine in real time, an outlet residual chlorine detection device 300 disposed at an outlet of the ultraviolet reactor 100 for monitoring a concentration of outlet residual chlorine in real time, and an ultraviolet control cabinet 400 for controlling an irradiation intensity of the ultraviolet reactor 100, wherein the ultraviolet reactor 100 can release medium-pressure full-band ultraviolet rays and the ultraviolet intensity is adjustable, and the ultraviolet reactor 100, the inlet residual chlorine detection device 200, and the outlet residual chlorine detection device 300 are electrically connected to the ultraviolet control cabinet 400.
In this embodiment, water containing residual chlorine is received by the ultraviolet reactor 100, residual chlorine in the water is decomposed and disinfected at the same time by releasing medium-pressure full-band ultraviolet rays, the inlet residual chlorine detection device 200 at the inlet of the ultraviolet reactor 100 and the outlet residual chlorine detection device 300 at the outlet monitor the inlet residual chlorine concentration and the outlet residual chlorine concentration in real time, respectively, and transmit them to the ultraviolet control cabinet 400 in real time, the ultraviolet control cabinet 400 can set the inlet target residual chlorine concentration and the outlet target residual chlorine concentration according to the water treatment standard or treatment requirement, then compare the measured inlet residual chlorine concentration with the inlet target residual chlorine concentration, compare the measured outlet residual chlorine concentration with the outlet target residual chlorine concentration, control the ultraviolet reactor 100 to adjust the operation power according to the comparison result, change the ultraviolet intensity until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or slightly lower than the outlet target residual chlorine concentration, the device can reach the optimal running power and running state, so that the excessive energy consumption is avoided while the residual chlorine decomposition and disinfection effects are ensured, the energy is saved, and the negative influence on the water quality is avoided. In addition, through import chlorine residue detection device and export chlorine residue detection device respectively real-time supervision import chlorine residue concentration and export chlorine residue concentration, the accurate dechlorination effect of being convenient for predicts, and system itself is very clean, need not regular cleaning and disinfection.
Referring to fig. 2, in one embodiment, the ultraviolet reactor 100 includes a cavity 110, a medium-pressure full-band ultraviolet lamp 120 disposed inside the cavity 110, an ultraviolet intensity sensor 130, and a temperature sensor 140, wherein the medium-pressure full-band ultraviolet lamp 120, the ultraviolet intensity sensor 130, and the temperature sensor 140 are electrically connected to the ultraviolet control cabinet 400.
In the embodiment, the chamber 110 is made of 316L stainless steel and has a tubular shape with two closed ends, which is more resistant to chlorine corrosion than 304 stainless steel; one end of the cavity 110 is provided with an inlet 111, the other end is provided with an outlet 112, wherein the inlet 111 and the outlet 112 are vertically welded on the cavity 110 by adopting a 3-inch 316L stainless steel pipe, the medium-pressure full-waveband ultraviolet lamp tube 120 is arranged in the cavity 110, chlorine-containing water flows in from the inlet 111, and flows out from the outlet 112 after being irradiated by ultraviolet rays released by the medium-pressure full-waveband ultraviolet lamp tube 120 to decompose residual chlorine and sterilize. Wherein the medium-voltage full-waveband ultraviolet lamp tube 120 is a medium-voltage full-waveband ultraviolet lamp tube with the maximum power of 2KW, the output of 100 and 400nm and the adjustable range of 30-100%.
In this embodiment, the uv intensity sensor 130 is a dry uv intensity sensor and is disposed on the cavity for detecting the uv intensity and transmitting the uv intensity to the uv control cabinet 400 in real time, so as to control the medium-voltage full-band uv lamp 120 to accurately adjust the uv intensity. The temperature sensor 140 is disposed on the cavity 110 for detecting the water temperature in the cavity 110 and transmitting the water temperature to the ultraviolet control cabinet 400 in real time, and the temperature sensor determines whether the water temperature is too high according to a temperature threshold set by the ultraviolet control cabinet 400, and timely alarms and controls the medium-voltage full-band ultraviolet lamp 120 to be turned off when the water temperature is too high, thereby preventing the medium-voltage full-band ultraviolet lamp 120 from being dry-burned due to insufficient water flow or insufficient cooling.
In some embodiments, the medium-voltage full-band ultraviolet lamp 120 is disposed in a quartz sleeve 121, the quartz sleeve 121 is disposed in the chamber 110, and a sealing member 122 is installed between two ends of the quartz sleeve 121 and the chamber 110. In this embodiment, the quartz sleeve 121 is a hydroxyl-removing sleeve dedicated to a medium-pressure ultraviolet lamp, so as to avoid the permeation decomposition of hydroxyl groups.
The medium-voltage all-band ultraviolet lamp 120 is arranged in the quartz sleeve 121 and isolated from water, and the two ends of the quartz sleeve 121 and the cavity 110 are sealed by the sealing member 122, so that water leakage can be prevented, and the medium-voltage all-band ultraviolet lamp 120 can be effectively protected.
In one embodiment, the quartz sleeve 121 is sleeved with a cleaning mechanism 123, and a cleaning driving motor 124 for driving the cleaning mechanism 123 to perform reciprocating cleaning along the quartz sleeve 121 is arranged outside the chamber 110. The cleaning driving motor 124 drives the cleaning mechanism 123 to reciprocate along the quartz sleeve 121, so that the surface of the quartz sleeve 121 can be cleaned in a reciprocating manner, and the residual chlorine decomposition effect is prevented from being influenced by the pollution or scaling of the surface of the quartz sleeve 121. The activation of the cleaning drive motor 124 and the cleaning frequency are controlled by the ultraviolet control cabinet 400.
Specifically, the cleaning mechanism 123 is a cleaning sleeve ring which is adapted to the quartz sleeve 121 and can move back and forth along the quartz sleeve 121, a ball nut is connected to the lower end of the cleaning sleeve ring, a ball screw which is driven to rotate by the cleaning driving motor 124 is arranged in the cavity 110, and the ball nut is matched with the ball screw, so that the cleaning mechanism 123 can clean the surface of the quartz sleeve 121 back and forth by driving the cleaning driving motor 124.
Referring to fig. 3, in some embodiments, the ultraviolet control cabinet 400 includes a cabinet body 410, a CPU420, a temperature control conversion device 430, an analog input/output module 440, a digital input/output module 450, a signal conversion device 460, an ultraviolet ballast 470, and a human-machine interface 480 disposed on the cabinet body 410, wherein the medium-voltage full-band ultraviolet lamp 120, the ultraviolet intensity sensor 130, and the temperature sensor 140 are electrically connected to the ultraviolet ballast 470, the signal conversion device 460, and the temperature control conversion device 430, respectively, the ultraviolet intensity sensor 130, the inlet residual chlorine detection device 200, the outlet residual chlorine detection device 300, the temperature control conversion device 430, and the signal conversion device 460 are electrically connected to an input end of the analog input/output module 440, and the human-machine interface 480 is electrically connected to an input end of the digital input/output module 450, the output end of the analog input/output module 440, the output end of the digital input/output module 450, and the ultraviolet ballast 470 are electrically connected to the CPU 420.
In this embodiment, the inlet residual chlorine detection device 200 and the outlet residual chlorine detection device 300 both use 4BC6031 type on-line chlorine meters, the inlet residual chlorine detection device 200 monitors the inlet residual chlorine concentration in real time and inputs the monitored inlet residual chlorine concentration signal to the input end of the analog input/output module 440 in real time, and the outlet residual chlorine detection device 300 monitors the outlet residual chlorine concentration in real time and inputs the monitored outlet residual chlorine concentration signal to the input end of the analog input/output module 440 in real time; the ultraviolet intensity signal and the temperature signal detected by the ultraviolet intensity sensor 130 and the temperature sensor 140 are converted by the signal conversion device 460 and the temperature control conversion device 430, respectively, and then input to the input terminal of the analog input/output module 440. The analog input/output module 440 inputs the inlet residual chlorine concentration signal, the outlet residual chlorine concentration signal, the ultraviolet intensity signal and the temperature signal into the CPU420, the CPU420 reads the inlet residual chlorine concentration signal, the outlet residual chlorine concentration signal, the ultraviolet intensity signal and the temperature signal, and correspondingly controls the ultraviolet ballast 470 to adjust the output power, thereby realizing the power adjustment of the medium-voltage full-waveband ultraviolet lamp 120 and achieving the purpose of adjusting the ultraviolet intensity.
The control signals and parameters operated through the human-machine interface 480 are transmitted to the CPU420 through the digital quantity input output module 450 to be controlled by the CPU 420. Wherein, 7-inch simplified screen is adopted as the human-computer interface 480, and Siemens Smart series PLC is adopted as the CPU.
In some embodiments, in order to facilitate remote control and operation, the input end of the digital quantity input/output module 450 is further connected to a wireless communication module for receiving a remote control signal, and after receiving a control signal sent by a mobile terminal or the like through the wireless communication module, the control signal is transmitted to the CPU420 through the digital quantity input/output module 450 for processing and control.
In some embodiments, the cabinet 410 is further configured with a cooling fan 490 for dissipating heat so as to reduce the temperature inside the cabinet 410 and prevent burning out of the components inside the cabinet 410. Wherein the cooling fan 490 is FBL9804 series fan.
In some embodiments, a power supply device 411 for power input, a power protection device 412 for electrical protection, an action executing device 413 for starting and stopping the ultraviolet ballast 460, and a voltage reducing device 414 for reducing the power voltage to 24V are further disposed in the cabinet 410, and the voltage reducing device 414 is electrically connected to the CPU 420. The power supply device 411, the power protection device 412 and the action execution device 413 are both Schneider low-voltage devices, the power supply device 411 is connected with a 220V power supply for supplying power, and the voltage reduction device 414 is a meanwell EDR-120-24V capable of converting 220V into 24V. In this embodiment, the action executing device 413 includes a contactor and a motor protector, and the power protection device 412 includes a circuit breaker, an earth leakage protector, and a fuse.
Referring to fig. 4, the method for controlling the residual chlorine decomposition sterilizing apparatus of the present embodiment includes the steps of:
in the first step, an inlet target residual chlorine concentration, an outlet target residual chlorine concentration and a default operating power of the ultraviolet reactor 100 are set by the ultraviolet control cabinet 400.
And secondly, comparing the inlet residual chlorine concentration measured by the inlet residual chlorine detection device 200 with the inlet target residual chlorine concentration through the ultraviolet control cabinet 400, and automatically controlling the ultraviolet reactor 100 to preset ultraviolet intensity according to a comparison result. When the concentration of the inlet residual chlorine is stable, namely the deviation from the inlet target concentration of the residual chlorine is not large and is only slightly higher or slightly lower than the inlet target concentration of the residual chlorine, the ultraviolet control cabinet 400 controls the ultraviolet reactor 100 to operate according to the default operation power, so that the ultraviolet reactor 100 operates according to the ultraviolet intensity corresponding to the default operation power; when import chlorine residue concentration is less than or is higher than import target chlorine residue concentration by a wide margin, according to import chlorine residue concentration and import target chlorine residue concentration contrast result automatic preset ultraviolet reactor 100 operating power specifically is: when the concentration of the inlet residual chlorine is higher than the inlet target concentration of the residual chlorine, pre-adjusting the operating power of the ultraviolet reactor 100 on the basis of the default operating power, and increasing the ultraviolet intensity of the ultraviolet reactor 100; when the inlet residual chlorine concentration is lower than the inlet target residual chlorine concentration, the operation power of the ultraviolet reactor 100 is preset to be reduced on the basis of the default operation power, and the ultraviolet intensity of the ultraviolet reactor 100 is reduced.
Thirdly, after the ultraviolet reactor 100 operates according to the default operating power or the preset operating power, comparing the outlet residual chlorine concentration measured by the outlet residual chlorine detection device 300 with the outlet target residual chlorine concentration through the ultraviolet control cabinet 400, automatically controlling the ultraviolet reactor 100 to finely adjust the ultraviolet intensity according to the comparison result until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration, enabling the ultraviolet reactor 100 to reach the optimal power operating state, keeping the operation, simultaneously keeping the monitoring of the inlet residual chlorine concentration and the outlet residual chlorine concentration, and automatically adjusting the inlet residual chlorine concentration and the outlet residual chlorine concentration to the optimal power operating state in real time according to the fluctuation condition.
In the control method of the embodiment, the measured inlet residual chlorine concentration and outlet residual chlorine concentration are compared with the preset inlet target residual chlorine concentration and outlet target residual chlorine concentration, so that the operating power of the ultraviolet reactor 100 is automatically adjusted, and proper ultraviolet intensity is released to enable the outlet residual chlorine concentration to meet the requirement; meanwhile, when the inlet residual chlorine fluctuates greatly, the operation power is preset according to the fluctuation condition of the inlet residual chlorine concentration, the operation power is finely adjusted according to the difference value between the outlet residual chlorine concentration and the outlet target residual chlorine concentration, the optimal ultraviolet intensity is released, the fact that the residual chlorine concentration is stable or fluctuates greatly can be ensured to continuously operate at the optimal power, the situation that the residual chlorine concentration instantaneously exceeds the technological requirements can be avoided, the flow or the inlet residual chlorine concentration is kept the same as the design value, the disinfection function can be simultaneously realized when the residual chlorine is decomposed, unnecessary energy consumption can be reduced, and negative effects on water quality are avoided.
Specifically, in the operation process of the equipment, when the inlet residual chlorine concentration measured by the inlet residual chlorine detection device 200 is consistent with the inlet target residual chlorine concentration, the ultraviolet control cabinet 400 controls the ultraviolet reactor 100 to start operation according to preset output power, after water enters the ultraviolet reactor 100 and is subjected to ultraviolet treatment, the ultraviolet control cabinet 400 compares the outlet residual chlorine concentration measured in real time by the outlet residual chlorine detection device 300 with the outlet target residual chlorine concentration, and if the measured outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or is slightly lower than the outlet target residual chlorine concentration, the equipment is indicated to be in the optimal power operation at the moment without adjustment; if the measured outlet residual chlorine concentration is higher than the outlet target residual chlorine concentration, the ultraviolet intensity of the ultraviolet reactor 100 is insufficient, and at the moment, the ultraviolet intensity of the ultraviolet reactor 100 is adjusted to be high through fine adjustment until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or slightly lower than the outlet target residual chlorine concentration, so that the optimal power operation state is achieved; if the measured outlet residual chlorine concentration is greatly lower than the outlet target residual chlorine concentration, it indicates that the ultraviolet intensity of the ultraviolet reactor 100 is too high, which may cause too high energy consumption, and at this time, the ultraviolet intensity of the ultraviolet reactor 100 is finely adjusted by the ultraviolet control cabinet 400 until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or slightly lower than the outlet target residual chlorine concentration, so as to reach an optimal power operation state.
When the concentration of the inlet residual chlorine fluctuates greatly, the ultraviolet control cabinet 400 compares the concentration of the inlet residual chlorine measured by the inlet residual chlorine detection device 200 with the concentration of the inlet target residual chlorine, if the concentration of the inlet residual chlorine is higher than the concentration of the inlet target residual chlorine, the ultraviolet control cabinet 400 controls the ultraviolet reactor 100 to be pre-adjusted to operate at high ultraviolet intensity, after the water runoff ultraviolet reactor 100 is treated, the ultraviolet control cabinet 400 compares the concentration of the outlet residual chlorine measured by the outlet residual chlorine detection device 300 with the concentration of the outlet target residual chlorine, and if the concentration of the outlet residual chlorine is consistent with the concentration of the outlet target residual chlorine or is slightly lower than the concentration of the outlet target residual chlorine, the equipment is indicated to be operated at the optimal power at the moment, and no adjustment is needed; if the outlet residual chlorine concentration is greatly higher than the outlet target residual chlorine concentration, the ultraviolet intensity is still insufficient, at the moment, the ultraviolet control cabinet 400 controls the ultraviolet reactor 100 to finely adjust the ultraviolet intensity of the high ultraviolet intensity continuously until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or slightly lower than the outlet target residual chlorine concentration, so that the equipment can run at the optimal power; if the outlet residual chlorine concentration is greatly lower than the outlet target residual chlorine concentration, the ultraviolet intensity is over-high, and the over-high energy consumption is easily caused, at the moment, the ultraviolet control cabinet 400 controls the ultraviolet reactor 100 to be continuously finely adjusted and adjusted to be operated at the low ultraviolet intensity until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or is slightly lower than the outlet target residual chlorine concentration, so that the equipment can be operated at the optimal power.
When the concentration of the inlet residual chlorine fluctuates greatly, and the concentration of the inlet residual chlorine measured by the inlet residual chlorine detection device 200 is lower than the inlet target concentration of residual chlorine, the ultraviolet control cabinet 400 controls the ultraviolet reactor 100 to be pre-adjusted to operate at low ultraviolet intensity, after the water runoff ultraviolet reactor 100 is treated, the ultraviolet control cabinet 400 compares the outlet residual chlorine concentration measured by the outlet residual chlorine detection device 300 with the outlet target concentration of residual chlorine, if the outlet residual chlorine concentration is consistent with the outlet target concentration of residual chlorine or is slightly lower than the outlet target concentration of residual chlorine, the equipment is indicated to be in the optimal power operation at the moment, and no adjustment is needed; if the outlet residual chlorine concentration is higher than the outlet target residual chlorine concentration, the ultraviolet intensity is insufficient, at the moment, the ultraviolet control cabinet 400 controls the ultraviolet reactor 100 to continuously finely adjust the ultraviolet intensity to operate until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or slightly lower than the outlet target residual chlorine concentration, so that the equipment can operate at the optimal power; if the outlet residual chlorine concentration is lower than the outlet target residual chlorine concentration, the ultraviolet intensity is over-high, and the over-high energy consumption is easily caused, at the moment, the ultraviolet control cabinet 400 controls the ultraviolet reactor 100 to be continuously finely adjusted and reduced in ultraviolet intensity to operate until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration or is slightly lower than the target residual chlorine concentration, so that the equipment can operate at the optimal power.
In a fruitIn the examples, after the residual chlorine decomposing and sterilizing apparatus was assembled, tests were performed based on the foregoing control method: by adding chlorine to the water tank 500 and then by the pump 600 according to the water flow rate of 10m3The chlorine residue enters the residual chlorine decomposition and disinfection equipment after being filtered by the filter 700, meanwhile, the human-computer interface is used for setting the inlet target chlorine residue concentration to be 1ppb and the outlet target chlorine residue concentration to be 0.2ppb in the ultraviolet control cabinet 400, and the test process is as follows:
the first test: after chlorination, the concentration of the inlet residual chlorine detected by the inlet residual chlorine detection device 200 is consistent with the inlet target residual chlorine concentration, namely the inlet residual chlorine concentration is 1ppb, and the equipment automatically pre-adjusts the power to operate by 78% according to the inlet target residual chlorine concentration and the outlet residual chlorine target concentration set value; the outlet residual chlorine detection device 300 detects that the outlet residual chlorine concentration is 0.25ppb, the CPU420 of the ultraviolet control cabinet 400 sends a signal to the ultraviolet ballast 460 according to the received outlet residual chlorine concentration value to control the fine adjustment of the high output power to 81%, at the moment, the outlet residual chlorine detection device 300 detects that the outlet residual chlorine concentration is 0.19ppb and is slightly less than 0.2ppb of the outlet target residual chlorine concentration, which indicates that the output power of 81% is the optimal output power, and the equipment automatically keeps operating at the optimal output power of 81%.
And (3) testing for the second time: the inlet residual chlorine detection device 200 detects that the inlet residual chlorine concentration is 1.5ppb and exceeds 1ppb of the inlet target residual chlorine concentration, the equipment automatically sends a signal to the ultraviolet ballast 460 according to the received inlet residual chlorine concentration, the output power is controlled to be increased to 92%, and the medium-voltage full-band ultraviolet lamp tube 120 operates at 92% power; at this time, the outlet residual chlorine concentration detected by the outlet residual chlorine detecting device 300 is 0.16ppb and is less than 0.2ppb of the outlet target residual chlorine concentration, which indicates that the operation power of the apparatus is higher at this time, the CPU automatically finely adjusts the output power of the ultraviolet ballast 460 to 90% according to the received outlet residual chlorine concentration, the outlet residual chlorine concentration detected by the outlet chlorine meter is 0.18ppb and still less than 0.2ppb of the outlet target residual chlorine concentration, the operation power of the apparatus is still higher, and the CPU finely adjusts the output power of the ultraviolet ballast 460 to 89.2% again according to the received outlet residual chlorine concentration until the outlet residual chlorine concentration approaches to 0.2 ppb.
Similarly, when the concentration of the inlet residual chlorine is relatively low, the equipment compares the inlet residual chlorine concentration measured by the inlet residual chlorine detection device 200 with the inlet target residual chlorine concentration to pre-adjust the operating power, and then finely adjusts the operating power according to the outlet residual chlorine concentration measured by the outlet residual chlorine detection device 300 until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration, so that the equipment reaches the optimal operating power and the optimal operating state.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein should be covered within the scope of the present invention.
Claims (10)
1. Residual chlorine decomposes disinfecting equipment, its characterized in that, including ultraviolet reactor (100) that is used for decomposing aquatic residual chlorine and disinfects disinfection, set up in the import residual chlorine detection device (200) that is used for real-time supervision import residual chlorine concentration of ultraviolet reactor (100) import, set up in export residual chlorine detection device (300) that is used for real-time supervision export residual chlorine concentration of ultraviolet reactor (100) export, be used for controlling ultraviolet reactor (100) ultraviolet control cabinet (400) of intensity of illumination, ultraviolet reactor (100) can release middling pressure full-wave band ultraviolet ray and ultraviolet intensity is adjustable, ultraviolet reactor (100), import residual chlorine detection device (200) and export residual chlorine detection device (300) all with ultraviolet control cabinet (400) electric connection.
2. The residual chlorine decomposition and disinfection equipment as claimed in claim 1, wherein the ultraviolet reactor (100) comprises a cavity (110), a medium-voltage full-band ultraviolet lamp tube (120) arranged inside the cavity (110), an ultraviolet intensity sensor (130) and a temperature sensor (140), and the medium-voltage full-band ultraviolet lamp tube (120), the ultraviolet intensity sensor (130) and the temperature sensor (140) are all electrically connected with the ultraviolet control cabinet (400).
3. The residual chlorine decomposing and disinfecting device as claimed in claim 2, wherein said medium-pressure full-wave ultraviolet lamp tube (120) is disposed in a quartz sleeve (121), said quartz sleeve (121) is disposed in said chamber (110), and a sealing member (122) is installed between both ends of said quartz sleeve (121) and said chamber (110).
4. The residual chlorine decomposing and disinfecting device as claimed in claim 3, wherein the quartz sleeve (121) is sleeved with a cleaning mechanism (123), and a cleaning driving motor (124) for driving the cleaning mechanism (123) to perform reciprocating cleaning along the quartz sleeve (121) is arranged outside the chamber (110).
5. The residual chlorine decomposition and disinfection apparatus as claimed in any one of claims 2-4, wherein the ultraviolet control cabinet (400) comprises a cabinet body (410), and a CPU (420), a temperature control conversion device (430), an analog input/output module (440), a digital input/output module (450), a signal conversion device (460), an ultraviolet ballast (470) which are arranged in the cabinet body (410), and further comprises a human-computer interface (480) which is arranged on the cabinet body (410), wherein the medium-voltage full-band ultraviolet lamp tube (120), the ultraviolet intensity sensor (130) and the temperature sensor (140) are respectively electrically connected with the ultraviolet ballast (470), the signal conversion device (460) and the temperature control conversion device (430), the ultraviolet intensity sensor (130), the inlet residual chlorine detection device (200), the outlet residual chlorine detection device (300) and the temperature sensor (140), The temperature control conversion device (430) and the signal conversion device (460) are electrically connected with the input end of the analog input/output module (440), the human-computer interface (480) is electrically connected with the input end of the digital input/output module (450), and the output end of the analog input/output module (440), the output end of the digital input/output module (450) and the ultraviolet ballast (470) are electrically connected with the CPU (420).
6. The residual chlorine decomposing and disinfecting apparatus as claimed in claim 5, wherein the input terminal of said digital quantity input output module (450) is further connected with a wireless communication module for receiving remote control signals.
7. The residual chlorine decomposing and disinfecting apparatus as claimed in claim 5, wherein said cabinet (410) is further provided with a cooling fan (490) for heat dissipation.
8. The residual chlorine decomposing and disinfecting equipment as claimed in claim 5, wherein a power supply device (411) for power input, a power protection device (412) for electrical protection, an action execution device (413) for starting and stopping the ultraviolet ballast (460) and a voltage reduction device (414) for reducing the power voltage to 24V are further arranged in the cabinet body (410), and the voltage reduction device (414) is electrically connected with the CPU (420).
9. The method for controlling a residual chlorine decomposing and sterilizing apparatus according to any one of claims 1 to 8, comprising the steps of:
setting an inlet target residual chlorine concentration, an outlet target residual chlorine concentration and default operating power of the ultraviolet reactor (100) through the ultraviolet control cabinet (400);
comparing the inlet residual chlorine concentration measured by the inlet residual chlorine detection device (200) with the inlet target residual chlorine concentration through the ultraviolet control cabinet (400), and automatically controlling the ultraviolet reactor (100) to preset ultraviolet intensity according to the comparison result;
Comparing the outlet residual chlorine concentration measured by the outlet residual chlorine detection device (300) with the outlet target residual chlorine concentration through the ultraviolet control cabinet (400), and automatically controlling the ultraviolet reactor (100) to finely adjust the ultraviolet intensity according to the comparison result until the outlet residual chlorine concentration is consistent with the outlet target residual chlorine concentration.
10. The control method according to claim 9, wherein when the inlet residual chlorine concentration is stable, the ultraviolet control cabinet (400) controls the ultraviolet reactor (100) to operate according to default operation power, and then the operation is finely adjusted to the optimal power according to the comparison result of the outlet residual chlorine concentration and the outlet target residual chlorine concentration;
when the concentration of the inlet residual chlorine is greatly lower than or higher than the inlet target concentration of the residual chlorine, the operation power of the ultraviolet reactor (100) is automatically pre-adjusted according to the comparison result of the inlet residual chlorine concentration and the inlet target concentration of the residual chlorine, and then the operation power is finely adjusted to the optimal power according to the comparison result of the outlet residual chlorine concentration and the outlet target concentration of the residual chlorine.
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Application publication date: 20220628 |