CN211644692U - Biological verification ultraviolet dosage system - Google Patents
Biological verification ultraviolet dosage system Download PDFInfo
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- CN211644692U CN211644692U CN202020066820.1U CN202020066820U CN211644692U CN 211644692 U CN211644692 U CN 211644692U CN 202020066820 U CN202020066820 U CN 202020066820U CN 211644692 U CN211644692 U CN 211644692U
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Abstract
The utility model discloses a biological verification ultraviolet dose system, throw with facility, microorganism and throw with the facility including inlet tube, ultraviolet reactor, regulator, the inlet tube links to each other with static mixer, the inlet tube is thrown with the regulator and is thrown with facility, microorganism and throw with the facility and be connected, static mixer links to each other with ultraviolet reactor, be equipped with the sample connection on ultraviolet inductor water inlet and the delivery port. The utility model discloses simple structure, area is little, can be fast, scientific, reasonable confirm through this system that ultraviolet equipment can export the actual ultraviolet energy on the aquatic microorganism, can truly reflect the disinfection performance of equipment.
Description
Technical Field
The utility model belongs to the technical field of water treatment, in particular to biological verification ultraviolet dose system.
Background
The ultraviolet disinfection technology is physical disinfection, has the advantages of broad-spectrum sterilization, no secondary pollution, safe and reliable operation and the like, and can inactivate harmful microorganisms which cannot be killed by traditional chemical agents, so that more and more water supply plants adopt the disinfection technology to improve the coverage of microorganism control. Currently, there are several methods for identifying the disinfection performance (the method of projecting uv dose) of uv devices: computational modeling, chemical methods, biological methods, fluorescent microsphere methods, and ultraviolet intensity monitoring methods. Most of the methods rely on theoretical ultraviolet dose design principles to guide the design and type selection of ultraviolet equipment, so that the ultraviolet equipment has great risk of not reaching the standard in the actual use process. In view of the results alone, the ultraviolet output capability of the device is often exaggerated, so that the design of the ultraviolet device becomes blind and the disinfection performance of the device cannot be truly reflected. The biological verification method is accepted by the most legal establishment and execution departments and is the most reliable method, and is listed as a standard method for the actual dosage identification of ultraviolet equipment in many countries, so that the disinfection performance of the equipment can be truly reflected. However, China is still in the beginning stage on the one hand, and a system and a method for scientifically, effectively and reasonably verifying the dosage of drinking water or reclaimed water disinfection equipment are lacked.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing a biological verification ultraviolet dose system, system simple structure, area is little, can be fast, scientific, reasonable confirm through this system that the ultraviolet equipment can export the actual ultraviolet energy on the aquatic microorganism, can truly reflect the disinfection performance of equipment.
The utility model also provides a biological verification ultraviolet dose method, actual ultraviolet energy that ultraviolet equipment can export aquatic microorganism can be fast, scientific, reasonable confirmed through this method, the disinfection performance of equipment can truly be reflected.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides a biological verification ultraviolet dose system, includes that inlet tube, ultraviolet reactor, regulator throw with facility, microorganism throw with facility, static mixer, the inlet tube links to each other with static mixer, the inlet tube is thrown with regulator and is thrown with facility, microorganism and throw with the facility and be connected, static mixer links to each other with ultraviolet reactor, be equipped with the sample connection on ultraviolet inductor water inlet and the delivery port.
The water outlet of the static mixer is connected with the water storage tank, the water outlet of the water storage tank is connected with the water inlet of the static mixer, and the water storage tank is provided with an air release valve.
The regulator adding facility comprises a regulator solution storage tank, a metering pump and a gate valve, wherein the metering pump is connected with the regulator solution storage tank, the metering pump is connected with a water inlet pipe, and the gate valve is arranged on the water inlet pipe.
The microorganism feeding facility comprises a microorganism stock solution storage tank, a metering pump and a gate valve, wherein the metering pump is connected with the microorganism stock solution storage tank, the metering pump is connected with a water inlet pipe, and the gate valve is arranged on the water inlet pipe.
The ultraviolet reactor comprises a plurality of ultraviolet lamp tubes, and quartz sleeves are sleeved on the ultraviolet lamp tubes.
And S-shaped pipelines are arranged on the water inlet and the water outlet of the ultraviolet reactor.
A biological verification ultraviolet dosage method, when the water quantity is large-scale water quantity, raw water enters a water inlet pipe through pressurization, a regulator and a microorganism solution are added into the water inlet pipe by a regulator adding facility and a microorganism adding facility, the raw water enters a static mixer and is uniformly mixed with the regulator and the microorganism solution, and finally enters an ultraviolet reactor;
when the system reaches a stable state, samples are taken from the water inlet and the water outlet of the ultraviolet reactor, the ultraviolet penetration rate and the microorganism concentration are respectively tested, and the inactivation rate curve of the ultraviolet reactor to microorganisms is measured under the conditions of set flow, ultraviolet penetration rate regulator and light intensity, so as to obtain an ultraviolet effective biological verification dose-inactivation rate curve.
The sampling comprises 3 microorganism detection water samples of 10ml to 20ml and 1 ultraviolet penetration rate detection water sample, and the sampling error of 3 times at the same point is less than 5 percent.
The calculation formula of the effective biological verification dose of the ultraviolet ray is as follows:
D＝RED×FF×AF (1)
d: effective biological verification dose (mJ/cm) of ultraviolet water disinfection equipment2)；
RED: ultraviolet water disinfection equipment verification dosage (mJ/cm)2)；
FF: the scaling coefficient of the ultraviolet water disinfection equipment is 0.8 as a default value;
AF: the aging coefficient of the ultraviolet water disinfection equipment is 0.5 as a default value;
A254: testing UV of water254Absorbance;
p: the output power (W) of the ultraviolet water disinfection equipment;
q: flow rate (m)3/h)；
B: the number of ultraviolet module units;
a. b, c, d and e are constants and calculated according to actual conditions.
The inactivation rate of the microorganisms is calculated by the following formula:
IR＝lg(N0/N) (3)
IR: ultraviolet ray inactivation ratio (%) of microorganisms;
n0: number of control microorganisms in water sample before disinfection (number/ml);
n: the number of the remaining microorganisms (one/ml) in the same amount of water sample after the ultraviolet irradiation for a certain time.
The utility model has the advantages that:
1) the system has simple structure and small occupied area, and the actual ultraviolet energy which can be output to microorganisms in water by the ultraviolet equipment can be rapidly, scientifically and reasonably determined by the system and the method, so that the disinfection performance of the equipment can be truly reflected.
2) When small scale water volume testing, an internal circulation is formed between the static mixer, the flow meter and the water storage tank to better mix the test solution.
3) The regulator adding facility can accurately add the ultraviolet regulator.
4) The microorganism adding facility can accurately add the microorganism solution.
5) The quartz sleeve has high light transmittance and low attenuation, and enhances the sterilization effect.
6) The water inlet and outlet pipelines of the S-shaped ultraviolet reactor can prevent light in the ultraviolet reactor from influencing the microbial activity at the water inlet and outlet sampling port, and the measurement accuracy is improved.
Drawings
Figure 1 is a schematic view of the biological verification ultraviolet dosing system of the present invention.
In the figure: the system comprises a water inlet pipe 1, a check valve 2, a gate valve 3, a regulator adding facility 4, a metering pump 5, a regulator solution storage tank 6, a microorganism adding facility 7, a microorganism stock solution storage tank 8, a static mixer 9, a flowmeter 10, a water storage tank 11, a sampling port 12, a pressure gauge 13, an ultraviolet reactor 14, an air release valve 17 and a variable frequency pump 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a set orientation, be constructed and operated in the set orientation, and thus, should not be construed as limiting the present invention.
Example 1
The utility model provides a biological verification ultraviolet dose system, includes that inlet tube 1, ultraviolet reactor 14, regulator throw with facility 4, microorganism throw with facility 7, inlet tube 1 links to each other with static mixer 9, inlet tube 1 is thrown with regulator and is thrown with facility 4, microorganism and throw with facility 7 and be connected, static mixer 9 links to each other with ultraviolet reactor 14, be equipped with sample connection 12 on ultraviolet inductor water inlet and the delivery port.
The regulator is ultraviolet transmittance regulator.
The water outlet of the static mixer 9 is connected with the water storage tank 11, the water outlet of the water storage tank 11 is connected with the water inlet of the static mixer 9, and the air release valve 17 is arranged on the water storage tank 11.
The regulator adding facility 4 comprises a regulator solution storage tank 6, a metering pump 5 and a gate valve 3, wherein the metering pump 5 is connected with the regulator solution storage tank 6 and the gate valve 3, and the gate valve 3 is connected with the water inlet pipe 1.
The microorganism adding facility 7 comprises a microorganism stock solution storage tank 8, a metering pump 5 and a gate valve 3, wherein the metering pump 5 is connected with the microorganism stock solution storage tank 8 and the gate valve 3, and the gate valve 3 is connected with the water inlet pipe 1.
The ultraviolet reactor 14 comprises a plurality of ultraviolet lamp tubes, and quartz sleeves are sleeved on the ultraviolet lamp tubes.
An S-shaped pipeline is arranged on the water inlet and the water outlet of the ultraviolet reactor 14, and the other end of the S-shaped pipeline is connected with a sampling port.
A biological verification ultraviolet dosage method, when the water yield is large-scale water yield, raw water enters a water inlet pipe 1 through pressurization, a regulator and a microorganism solution are added into the water inlet pipe 1 by a regulator adding facility 4 and a microorganism adding facility 7, the raw water enters a static mixer 9 and is uniformly mixed with the regulator and the microorganism solution, and finally enters an ultraviolet reactor 14, when the water yield is small-scale water yield, the raw water enters a water storage tank 11 after being mixed in the static mixer 9, enters the static mixer 9 again after the flow rate is adjusted in the water storage tank 11, and then enters the ultraviolet reactor 14;
when the system reaches a stable state, samples are taken from the water inlet and the water outlet of the ultraviolet reactor 14, the ultraviolet penetration rate and the microorganism concentration are respectively tested, the inactivation rate curve of the ultraviolet reactor 14 to the microorganisms is measured under the conditions of set flow, ultraviolet penetration rate regulator and light intensity, and an ultraviolet effective biological verification dose-inactivation rate curve is made.
Example 2
The utility model provides a biological verification ultraviolet dose system, includes that inlet tube 1, ultraviolet reactor 14, regulator throw with facility 4, microorganism throw with facility 7, inlet tube 1 links to each other with static mixer 9, inlet tube 1 is thrown with regulator and is thrown with facility 4, microorganism and throw with facility 7 and be connected, static mixer 9 links to each other with ultraviolet reactor 14, be equipped with sample connection 12 on ultraviolet inductor water inlet and the delivery port.
The water inlet pipe 1 is provided with a check valve 2, a variable frequency pump 18 and a pressure gauge 13, and the pipeline connecting the static mixer 9 and the ultraviolet reactor 14 is provided with the variable frequency pump 18 and the pressure gauge 13 of the flowmeter 10.
The water outlet of the ultraviolet sensor is connected with a water outlet pipe, and a pressure gauge is arranged on the water outlet pipe.
Stirrers are arranged in the regulator solution storage tank 6, the microorganism stock solution storage tank 8 and the water storage tank 11,
the water outlet of the static mixer 9 is connected with the water storage tank 11, the water outlet of the water storage tank 11 is connected with the water inlet of the static mixer 9, and the air release valve 17 is arranged on the water storage tank 11.
The regulator adding facility 4 comprises a regulator solution storage tank 6, a metering pump 5 and a gate valve 3, wherein the metering pump 5 is connected with the regulator solution storage tank 6 and the gate valve 3, and the gate valve 3 is connected with the water inlet pipe 1.
The microorganism adding facility 7 comprises a microorganism stock solution storage tank 8, a metering pump 5 and a gate valve 3, wherein the metering pump 5 is connected with the microorganism stock solution storage tank 8 and the gate valve 3, and the gate valve 3 is connected with the water inlet pipe 1.
The ultraviolet reactor 14 comprises a plurality of ultraviolet lamp tubes, and quartz sleeves are sleeved on the ultraviolet lamp tubes.
And S-shaped pipelines are arranged on the water inlet and the water outlet of the ultraviolet reactor 14.
A biological verification ultraviolet dosage method, when the water yield is large-scale water yield, raw water enters a water inlet pipe 1 through pressurization, a regulator and a microorganism solution are added into the water inlet pipe 1 by a regulator adding facility 4 and a microorganism adding facility 7, the raw water enters a static mixer 9 and is uniformly mixed with the regulator and the microorganism solution, and finally enters an ultraviolet reactor 14, when the water yield is small-scale water yield, the raw water enters a water storage tank 11 after being mixed in the static mixer 9, enters the static mixer 9 again after the flow rate is adjusted in the water storage tank 11, and then enters the ultraviolet reactor 14;
when the system reaches a stable state, samples are taken from the water inlet and the water outlet of the ultraviolet reactor 14, the ultraviolet penetration rate and the microorganism concentration are respectively tested, the inactivation rate curve of the ultraviolet reactor 14 to the microorganisms is measured under the conditions of set flow, ultraviolet penetration rate regulator and light intensity, and an ultraviolet effective biological verification dose-inactivation rate curve is made.
The sampling comprises 3 microorganism detection water samples of 10ml to 20ml and 1 ultraviolet penetration rate detection water sample, and the sampling error of 3 times at the same point is less than 5 percent.
The water inlet sampling port 12 and the water outlet sampling port 12 both adopt T-shaped elbows.
The water storage tank 11 is a cylinder with a volume of 2-5m3The material is glass fiber reinforced plastic.
The metering pumps 5 are diaphragm metering pumps 5, the flow range is 0.1-20000L/h, the metering precision is within +/-1%, the pumps can be manually adjusted and frequency-converted to adjust the flow, and remote control and computer automatic control can also be realized.
The ultraviolet penetration rate regulator solution storage tank 6, the tested microorganism stock solution storage tank 8 and the water storage tank 11 all contain stirrers to keep the solutions to be uniformly mixed. Wherein the water storage tank 11 is a cylinder with a volume of 2-5m3The retention time of the water in the water storage tank 11 is 3-5min, and the material is glass fiber reinforced plastic.
The method comprises the following parameters:
the ultraviolet dose is 20-80mJ/cm2To (c) to (d);
concentration of test microorganism: 1010-1011Per liter;
the microorganism is selected from MS2 bacteriophage
Ultraviolet transmittance adjuster concentration: about 1 percent.
The ultraviolet transmittance is the ratio of the unabsorbed ultraviolet to the total output ultraviolet after the ultraviolet with the wavelength of 254nm passes through a water sample of a 1cm cuvette, and can be obtained by measuring and calculating with a spectrophotometer.
The calculation formula of the effective biological verification dose of the ultraviolet ray is as follows:
D＝RED×FF×AF (1)
d: effective biological verification dose (mJ/cm) of ultraviolet water disinfection equipment2)；
RED: ultraviolet water disinfection equipment verification dosage (mJ/cm)2)；
FF: the scaling coefficient of the ultraviolet water disinfection equipment is 0.8 as a default value;
AF: the aging coefficient of the ultraviolet water disinfection equipment is 0.5 as a default value;
A254: testing UV of water254Absorbance;
p: the output power (W) of the ultraviolet water disinfection equipment;
q: flow rate (m)3/h)；
B: the number of ultraviolet module units;
a. b, c, d and e are constants.
The inactivation rate of the microorganisms is calculated by the following formula: unit of
IR＝lg(N0/N) (3)
IR: ultraviolet ray inactivation ratio (%) of microorganisms;
n0: number of control microorganisms in water sample before disinfection (number/ml);
n: the number of the remaining microorganisms (one/ml) in the same amount of water sample after the ultraviolet irradiation for a certain time.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (7)
1. The utility model provides a biological verification ultraviolet dose system, characterized by, including inlet tube, ultraviolet reactor, regulator throw with facility, microorganism throw with facility, static mixer, the inlet tube links to each other with static mixer, the inlet tube is thrown with regulator and is thrown with facility, microorganism and throw with the facility and be connected, static mixer links to each other with ultraviolet reactor, be equipped with the sample connection on ultraviolet reactor water inlet and the delivery port.
2. The ultraviolet dosing system for biological verification of claim 1 wherein the static mixer outlet is connected to a water storage tank, the water storage tank outlet is connected to the static mixer inlet, and the water storage tank is provided with a vent valve.
3. The ultraviolet dosing system for biological verification as claimed in claim 1, wherein the regulator dosing facility comprises a regulator solution storage tank, a metering pump and a gate valve, wherein the metering pump is connected with the regulator solution storage tank, the metering pump is connected with a water inlet pipe, and the gate valve is arranged on the water inlet pipe.
4. The ultraviolet dosing system for biological verification as claimed in claim 1, wherein the microorganism adding facility comprises a microorganism stock solution storage tank, a metering pump and a gate valve, wherein the metering pump is connected with the microorganism stock solution storage tank, the metering pump is connected with a water inlet pipe, and the gate valve is arranged on the water inlet pipe.
5. The ultraviolet dosing system for biological verification as claimed in claim 1 wherein the ultraviolet reactor comprises a plurality of ultraviolet tubes, the ultraviolet tubes being sleeved with quartz sleeves.
6. The ultraviolet dosing system for biological verification as claimed in claim 1 wherein the ultraviolet reactor water inlet and outlet are provided with "S" shaped pipes.
7. The ultraviolet dosing system for biological verification as in claim 2 wherein a stirrer is disposed within the water storage tank.
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| CN202020066820.1U CN211644692U (en) | 2020-01-13 | 2020-01-13 | Biological verification ultraviolet dosage system |
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| CN202020066820.1U CN211644692U (en) | 2020-01-13 | 2020-01-13 | Biological verification ultraviolet dosage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099692A (en) * | 2020-01-13 | 2020-05-05 | 山东省城市供排水水质监测中心 | Biological verification ultraviolet dose system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111099692A (en) * | 2020-01-13 | 2020-05-05 | 山东省城市供排水水质监测中心 | Biological verification ultraviolet dose system and method |
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