CN110204003B - Direct drinking water ultraviolet disinfection control system and control method - Google Patents
Direct drinking water ultraviolet disinfection control system and control method Download PDFInfo
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- CN110204003B CN110204003B CN201910581974.6A CN201910581974A CN110204003B CN 110204003 B CN110204003 B CN 110204003B CN 201910581974 A CN201910581974 A CN 201910581974A CN 110204003 B CN110204003 B CN 110204003B
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 138
- 239000003651 drinking water Substances 0.000 title claims abstract description 28
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 301
- 230000001954 sterilising effect Effects 0.000 claims abstract description 134
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 230000002070 germicidal effect Effects 0.000 claims abstract description 17
- 238000000825 ultraviolet detection Methods 0.000 claims abstract description 17
- 241000894006 Bacteria Species 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims description 74
- 238000009434 installation Methods 0.000 claims description 7
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 description 11
- 230000000249 desinfective effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 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
-
- 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
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention provides a direct drinking water ultraviolet disinfection control system and a control method, wherein the control system comprises a controller and a sterilization device controlled by the controller, and the sterilization device comprises a shell, an electric water valve, a water detection device, an ultraviolet sterilization module, an ultraviolet detection sensor, an ultraviolet sterilization part and a water outlet channel; the control method can carry out repeated detection within the time of delay calculation and timing calculation; the controller can control the electric water valve and the ultraviolet germicidal lamp according to the corresponding detection result, and the condition of the disinfection control system is displayed on the display. The invention can fully kill bacteria in water flow, reduce the working temperature of the ultraviolet germicidal lamp and prolong the service life.
Description
Technical Field
The invention relates to the technical field of drinking water disinfection, in particular to an ultraviolet disinfection control system and method for direct drinking water.
Background
With the development of society and the improvement of living standard of people, the water dispenser has become the water dispenser equipment that public units such as family, school, hospital, factory, station, airport are standing by, but since people used the water dispenser, the position that the water dispenser contacted with water was found to have the bacterium, brought the health hidden danger for our drinking water, and the following several main reasons have: 1. bacteria in the air
Entering a water storage tank of the water dispenser; 2. the water in the water storage container, the cold water container and the pipeline is easy to breed bacteria within the range of normal temperature to 60 ℃; 3. bacteria are also grown on the water outlet part of the faucet exposed outside. Industry development has attempted to solve this problem in a number of ways, none of which has achieved a good result, the common disinfection method, which is to add an antimicrobial material to the parts that come into contact with water,
the water dispenser has the advantages that the process is complex, the using effect is poor, the ozone sterilization is adopted, the problems of inconvenient operation, poor sterilization effect, influence on the taste of water and the like are not accepted by the public, in addition, the ultraviolet rays are used for circulating the water boiling tank or the water storage tank in the water dispenser, although the bacteria in the tank can be effectively killed, the corresponding standard can not be reached when the water outlet of the water dispenser is detected
The method is accurate. Therefore, there is a need to provide a new uv sterilizing type water dispenser to solve the above problems.
An ultraviolet sterilization type water dispenser and a control method thereof are disclosed in Chinese patent application No. 201810456854.9, application No. 2018.05.14. The ultraviolet sterilization type water dispenser and the control method thereof provide an ultraviolet sterilization type water dispenser and a control method thereof. Ultraviolet ray sterilization formula water dispenser is including taking out tap main part and the module of disinfecting of water injection well choke, the module of disinfecting install in the water injection well choke for to the warp the water that the water injection well choke flows is disinfected, wherein the module of disinfecting includes: the sterilization box body is provided with a water inlet and a water outlet, and the water inlet is communicated with the water outlet nozzle; the ultraviolet lamp is used for sterilizing and disinfecting the water in the sterilizing box body; and the controller is used for detecting a water flow signal of the water outlet nozzle and controlling the on and off of the ultraviolet lamp according to the water flow signal. The invention also provides a control method of the ultraviolet sterilization type water dispenser. The ultraviolet sterilization type water dispenser provided by the invention can ensure that the water outlet of the water dispenser can obtain better sterilization guarantee, is safe to use and simple and convenient to operate, does not change the structure of the existing water dispenser, has low cost, and is suitable for wide popularization and use.
However, the water inlet, the water outlet channel and the water outlet of the ultraviolet sterilization type water dispenser are sequentially communicated to form a sterilization water path, the ultraviolet lamp is accommodated in the quartz glass tube of the accommodating part, and ultraviolet rays penetrate through the through holes arranged in the accommodating part to enter the water outlet channel to be contacted with water flow; and the water dispenser only has single water flow detection; when water flow is detected to enter the water dispenser, the water flow can rapidly circulate along the sterilization waterway, the retention time in the water dispenser is short, so that the contact time of ultraviolet rays and the water flow is short, and the contact area of the ultraviolet rays and the water flow is small because the ultraviolet rays can pass through the through holes to sterilize the water, so that the ultraviolet rays can not fully kill bacteria in the water flow, and the body is easy to feel uncomfortable after drinking the water; the ultraviolet lamp accommodated in the quartz glass tube has poor heat dissipation and short service life; although quartz glass has good light transmission performance, there is still 7% to 20% light loss for ultraviolet rays in the sterilization band, which results in low ultraviolet light utilization and reduced sterilization efficiency; this water dispenser does not set up detection device to ultraviolet lamp, does not have relevant cue signal after ultraviolet lamp damages, starts the water dispenser under the condition of knowing ultraviolet lamp damage not, and rivers do not contact with the ultraviolet ray, directly are drunk after flowing from the delivery port, have the potential safety hazard like this.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the direct drinking water ultraviolet disinfection control system and the direct drinking water ultraviolet disinfection control method which can fully kill bacteria in water, feed back information in time and operate through the feedback information.
In order to achieve the aim, the direct drinking water ultraviolet disinfection control system comprises a controller and a sterilizing device controlled by the controller, wherein the sterilizing device comprises a shell, an electric water valve, a water detecting device, an ultraviolet sterilizing module, an ultraviolet detecting sensor, an ultraviolet sterilizing part and a water outlet channel; a cavity is arranged in the shell; the electric water valve is positioned at the upper end of the shell, and water flow enters the cavity from the electric water valve; the ultraviolet sterilization module is positioned in the cavity and below the electric water valve; the water detection device is positioned between the electric water valve and the ultraviolet sterilization module; the ultraviolet sterilization part is positioned below the ultraviolet sterilization module; the ultraviolet sterilization part comprises a sterilization connecting surface, and a sterilization space is formed in the ultraviolet sterilization part; the water outlet channel is communicated with the sterilization space; the ultraviolet detection sensor is arranged on the sterilization connecting surface and is connected with the controller.
The control method of the direct drinking water ultraviolet disinfection control system comprises the following steps:
a) setting the K value corresponding to the on-off key to 0; pressing the switch key, judging the value of K, performing step b) when K =1, performing step c) when K =0,
b) the controller controls the electric water valve to start, the water detection device starts and detects a water flow signal, and when the water flow signal is detected, the step d) is carried out, and the step e) is carried out when the water flow signal is not detected;
c) the controller controls the electric water valve to be closed, the water detection device is started, the water flow signal is detected, and the step g is carried out if the water flow signal is not detected); when the water flow signal is detected, the step h) is carried out,
d) the controller controls the ultraviolet germicidal lamp to start, the controller controls the ultraviolet detection sensor to start, ultraviolet detection is carried out through the ultraviolet detection sensor, when the ultraviolet detection sensor detects an ultraviolet signal, the display displays 'normal', and when the ultraviolet signal is not detected, the step f) is carried out;
e) carrying out time delay timing and total time, wherein the total time length is longer than each time delay timing time length, and carrying out time delay timing for multiple times in the total timing time period; if the water detection device detects the water flow signal when the total timing period is over, performing the step d), and if the water detection device does not detect the water flow signal when the total timing period is over, displaying 'no water' on the display;
f) the controller controls the electric water valve to be closed, and the display displays 'disinfection function is abnormal';
g) the controller controls the ultraviolet germicidal lamp to be turned off;
h) carrying out time delay timing and total time, wherein the total time length is longer than each time delay timing time length, and carrying out time delay timing for multiple times in the total timing time period; if the water detection device does not detect the water flow signal when the total timing period is over, performing the step g); if the water detection device detects a water flow signal when the total timing period is over, the display displays water leakage;
the method for detecting the water flow by the water detection device comprises the following steps: when water flows through the high-level conductive probe and the low-level conductive probe, the high-level conductive probe and the low-level conductive probe are conducted by the water flow, the controller detects that the potential between the high-level conductive probe and the low-level conductive probe changes, and the water flow is indicated, otherwise, the water flow is not indicated.
Above-mentioned straight drinking water ultraviolet disinfection control system and control method, water detection device are located the ultraviolet sterilization module top, and when rivers flowed through water detection device and flow down, rivers reachd the ultraviolet sterilization module through water detection device again, and after water detection device detected the rivers and passed through, the ultraviolet germicidal lamp of ultraviolet sterilization module just opened, and the ultraviolet germicidal lamp does not have operating temperature like this when not having rivers, prolongs the life of ultraviolet germicidal lamp. Because of ultraviolet sterilization portion is located the sterilamp below, ultraviolet sterilization portion is by the upper and lower to the connection face that disinfects that is close to gradually in the middle of towards the casing, owing to formed the offal passageway between shells inner wall and mounting panel, consequently, the water through ultraviolet sterilization module passes through under the guide effect of offal passageway and shells inner wall, rivers on the connection face that disinfects are even and easy attached on the connection face that disinfects flows downwards, and the setting of the connection face that disinfects, the circulation speed of rivers can be slowed down to the connection face that disinfects, the ultraviolet ray that the extension sterilamp sent and the active time of rivers, the bacterium in the rivers can fully be exterminateed to the ultraviolet energy.
In the control method, because the step a) is arranged, whether the electric water valve needs to be opened or not can be directly and reliably judged by detecting the k value. Based on above-mentioned water detection device's structure, then can be accurate judge whether have rivers to pass through, be convenient for can reliably open the sterilamp, just so can avoid influencing the life-span of sterilamp because of there is not rivers and open the sterilamp by mistake. In the steps, the steps of time delay timing and total timing are adopted, when the electric water valve is opened, in order to avoid the situation that water is judged to be not water by mistake due to time delay, whether water exists or not is judged by adopting time delay timing for multiple times in the time period of the total timing, and the accuracy of system judgment is improved. After the electric water valve is closed, the steps are adopted to detect whether water leakage exists or not, so that the detection accuracy and reliability are improved.
Furthermore, the water detection device comprises a high-level conductive probe and a low-level conductive probe, the high-level conductive probe and the low-level conductive probe are respectively connected to the controller, the high-level conductive probe and the low-level conductive probe are arranged in the vertical direction, and a gap is reserved between the high-level conductive probe and the low-level conductive probe. By utilizing the conductivity of common drinking water, when water flows through the high-level conductive probe and the low-level conductive probe, the water flow conducts the high-level conductive probe and the low-level conductive probe, so that the level between the high-level conductive probe and the low-level conductive probe is changed, and a signal of water flow or no water flow is received in the controller, and the precision of detecting whether water passes through is high; the working principle of the water flow detector is as follows: 2 electrically conductive probes of high-low level connect MCU's 2 IO mouth IOH and IOL respectively, and 2 electrically conductive probes are open circuit state, utilize ordinary drinking water conductive characteristic, when rivers pass through 2 electrically conductive probes, 2 IO mouth circuit intercommunication form the return circuit, judge that IO mouth circuit intercommunication state can judge whether have rivers to pass through. When the program is initialized, the IOH port level for the high level probe is set to 1 and the IOL port level for the low level probe is set to 0. The on-enable timing scan or interrupt mode detects the level state of the IOH. When no water flows through the probe, the high-low level probe is opened, and the level of the IOH port is kept to be 1. When water flows through the probe, the high-low level probe is communicated, the IOH and the IOL form a loop, and the IOH level is changed from 1 to 0. The program judges that water flows through the IOH potential state 0.
Furthermore, the sterilization connecting surface is an inclined surface or an inclined surface which gradually extends from top to bottom to the center of the shell, and a reflecting layer is arranged on the sterilization connecting surface. Therefore, the inclined surface or the cambered surface is arranged on the connecting surface, so that the flowing speed of water flow can be reduced, and the sterilizing effect is further improved. The reflecting layer can enable the ultraviolet rays to react with water flow again after being reflected, and the sterilizing effect is enhanced.
Furthermore, the ultraviolet sterilization module comprises an ultraviolet sterilization lamp and an ultraviolet sterilization lamp radiator, the ultraviolet sterilization lamp is installed at the bottom of the ultraviolet sterilization lamp radiator, and the ultraviolet sterilization lamp radiator comprises an installation plate and more than two radiating fins arranged on the top surface of the installation plate; a water flow channel is arranged between the adjacent radiating fins, and a water drainage channel is formed between the mounting plate and the inner wall of the shell.
For the ultraviolet sterilization module of the invention, the ultraviolet sterilization lamp can generate a large amount of heat which is one of important factors influencing the service life of the ultraviolet sterilization lamp, as the plurality of radiating fins are arranged on the top surface of the mounting plate and the water flow channels are arranged between the adjacent radiating fins, the water from the electric water valve directly flows onto the radiating fins and then flows into the sterilization connecting surface, in the process, most of the heat generated by the sterilization ultraviolet lamp is transferred onto the ultraviolet sterilization lamp radiator, and most of the heat is taken away by the heat transfer water flow under the action of the water flow, and simultaneously the heat is transferred into the water by the heat radiation and is taken away by the water, thus the heat dissipation efficiency is greatly improved, the service life of the ultraviolet sterilization lamp is prolonged, the problem that the heat dissipation of the ultraviolet lamp is difficult when the ultraviolet lamp is applied to the direct drinking water is solved, and simultaneously the water flows into the sterilization connecting surface along the inner wall of the shell through the water flow channels along the edges of the mounting plate, the water flow will be more uniform.
Furthermore, the upper end of the ultraviolet sterilization part is provided with a vertical guide surface connected with the sterilization connecting surface. Like this, the water that gets off from sewer under the effect of vertical spigot surface lets water attached more on the face is connected in disinfecting and from disinfecting and connect the face outflow, avoids water to enter into and blocks partial ultraviolet ray and influence the bactericidal effect who connects the face water that disinfects that flows through in the space of disinfecting.
Furthermore, be equipped with the splice bar more than two between mounting panel and casing, form between the adjacent splice bar offal passageway, like this, not only conveniently fix the ultraviolet sterilization module, in addition, can form discontinuous annular offal passageway between the inner wall of casing and mounting panel, let the rivers flow in to disinfect and connect more even on the face.
Furthermore, the radiating fins are arranged in parallel, so that the flowing of water flow is facilitated.
Furthermore, the cross section of each radiating fin is in a trapezoid shape with a small upper part and a large lower part, so that the surface area of each radiating fin is increased, the radiating area is increased, and most importantly, when water flows downwards from the upper ends of the radiating fins, the flowing speed of the water flow on the radiating fins can be reduced by the radiating fins, and the heat is taken away more favorably.
Further, the controller comprises a power supply, a storage battery, a display, a switch and a control chip with a time delay timing function and a total timing function. The display can show the state of present straight drink water ultraviolet disinfection control system and the problem that exists, convenient maintenance. And the control chip with the time delay timing function and the total time function performs time delay timing and calculation when no water flow is detected to pass through, and performs operation according to the calculation result. After the electric water valve is prevented from being opened, water flow does not enter the direct drinking water ultraviolet disinfection control system, and the water detection device carries out false detection.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a control flow diagram of the present invention;
FIG. 3 is a schematic structural diagram of a heat dissipation fin;
FIG. 4 is a cross-sectional view of a cooling fin;
FIG. 5 is a cross-sectional view of the mounting plate, housing;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a cross-sectional view of a connector bar;
FIG. 8 is another structural schematic of the mounting plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the direct drinking water ultraviolet disinfection control system comprises a controller 1 and a sterilizing device controlled by the controller 1. The controller 1 comprises a power supply 11, a storage battery 12, a display 13, a switch 14 and a control chip 17 with a time delay and timing function and a time summation function, wherein the power supply 11, the storage battery 12, the display 13, the switch 14, the time delay and timing function and the time summation function are realized by combining the control chip 17 with software, and the hardware of the control chip 17 is an existing control chip. The sterilizing device comprises a shell 20, an electric water valve 21, a water detecting device 22, an ultraviolet sterilizing module 23, an ultraviolet detecting sensor 25, an ultraviolet sterilizing part 24 and a water outlet channel 26.
The electric water valve 21 is positioned at the upper end of the shell 20, a cavity 201 is formed in the shell 20, and the electric water valve 21 is controlled by a controller; water flows into the cavity 201 from the electric water valve 21; the ultraviolet sterilization module 23 is positioned below the electric water valve 21 and in the cavity 201; the water detection device is positioned between the electric water valve 21 and the ultraviolet sterilization module 23 and is controlled by the controller; the ultraviolet sterilization part 24 is located below the ultraviolet sterilization module 23. The ultraviolet detection sensor 25 is disposed on the sterilization connection surface 241. Thus, the water flow firstly passes through the water detection device 22 and then reaches the ultraviolet sterilization module 23. Make disinfection control system just carry out ultraviolet sterilization under the circumstances of confirming that there is rivers to flow through, effectively prevent that ultraviolet sterilization module from working overheated, increase of service life. The ultraviolet detection sensor 25 can detect the presence or absence of ultraviolet rays.
The water detecting device 22 comprises a high-level conducting probe 221 and a low-level conducting probe 222, the high-level conducting probe 221 and the low-level conducting probe 222 are respectively connected to the controller 1, the high-level conducting probe 221 and the low-level conducting probe 222 are arranged in the up-down direction, a gap is formed between the high-level conducting probe 221 and the low-level conducting probe 222, and the high-level conducting probe 221 and the low-level conducting probe 222 are located right below the electric water valve.
The ultraviolet sterilization module 23 comprises an ultraviolet sterilization lamp 231 and an ultraviolet sterilization lamp radiator 232, the ultraviolet sterilization lamp 231 is installed at the bottom of the ultraviolet sterilization lamp radiator 232, the ultraviolet sterilization lamp radiator 232 comprises an installation plate 2321 and more than two heat dissipation fins 2322 arranged on the top surface of the installation plate, a water flow channel 2323 is arranged between the adjacent heat dissipation fins, in the embodiment, the adjacent heat dissipation fins are arranged in parallel, as shown in fig. 3, in order to enable water to flow out from the periphery of the installation plate 2321 after passing through the heat dissipation fins, through holes 2323 communicated with the water flow channel are arranged on the heat dissipation fins 2322, and the lower ends of the through holes 2323 are open, so that water can flow conveniently; as shown in fig. 4, the cross section of the heat dissipating fins 2322 is a trapezoid with a small top and a large bottom, so that the surface area of the heat dissipating fins 2322 is increased, and the heat dissipating area is increased. As shown in fig. 5, a water drainage channel 27 is formed between the mounting plate 2321 and the inner wall of the housing 20, as shown in fig. 5 and 6, more than two connecting ribs 2324 are arranged between the mounting plate 2321 and the housing 20, the water drainage channel 27 is formed between adjacent connecting ribs, the cross section of each connecting rib can be square, and as shown in fig. 7, the cross section of each connecting rib 2324 can also be a structure with chamfers at the upper side and the lower side respectively, so that the water drainage channel has a guiding effect on the flow of water, and the water entering the sterilization connecting surface is more uniform.
In the present invention, as shown in fig. 8, in another structure of the mounting plate 2321, a step 281 having an upper surface lower than an upper surface of the mounting plate is provided at an outer side of the mounting plate 2321, an arc groove 283 having a downwardly recessed middle portion is provided at the step 281, the arc groove is formed in a ring shape along an edge of the mounting plate, and a chamfer 282 is provided at an upper edge of the mounting plate in order to better backflow water on the mounting plate into the arc groove 283. Above-mentioned structure, in the arc groove 283 was entered into earlier when water flowed down from chamfer 282, utilize arc groove 283 to collect rivers and cushion, when the water in the arc groove 283 exceeds arc groove edge, the hydroenergy in the arc groove was even spills over from the edge and flows out through sewer passageway, like this, let flow in the more even of the water of connecting the face of disinfecting.
The ultraviolet sterilization part 24 is a sterilization connecting surface 241 gradually extending from top to bottom towards the center of the shell, and a sterilization space is formed in the ultraviolet sterilization part 241; the upper end of the ultraviolet sterilization part is provided with a vertical guide surface 242 connected with the sterilization connecting surface; the water outlet channel is communicated with the sterilization space; the connection surface 241 that disinfects may be an inclined surface or an inclined surface, in this embodiment, the connection surface 241 that disinfects is an inclined surface, and the connection surface 241 that disinfects is provided with a reflective layer that reflects ultraviolet rays, in this embodiment, the connection surface 241 that disinfects is a mirror aluminum reflective layer. The sterilizing connecting surfaces 241 form a water outlet channel.
As shown in fig. 1 and 2, the control method of the direct drinking water ultraviolet disinfection control system comprises the following steps:
a) setting the K value corresponding to the on-off key to 0; pressing the on-off key, determining the value of K, and performing step b) when K = 1) and performing step c) when K = 0.
b) The controller controls the electric water valve to be started, the water detection device is started, the water flow signal is detected, when the water flow signal is detected, the step d) is carried out, and the step e) is carried out when the water flow signal is not detected.
c) The controller controls the electric water valve to be closed, the water detection device is started, the water flow signal is detected, and the step g is carried out if the water flow signal is not detected); and h) when the water flow signal is detected, performing step h).
d) The controller controls the ultraviolet germicidal lamp to start, the controller controls the ultraviolet detection sensor to start, ultraviolet detection is carried out through the ultraviolet detection sensor, when the ultraviolet detection sensor detects an ultraviolet signal, the display displays 'normal', and when the ultraviolet signal is not detected, the step f) is carried out.
e) Carrying out time delay timing and total time, wherein the total time length is longer than each time delay timing time length, and carrying out time delay timing for multiple times in the total timing time period; and d) if the water detection device detects the water flow signal when the total timing period is over, performing step d), and if the water detection device does not detect the water flow signal when the total timing period is over, displaying 'no water' on the display.
f) The controller controls the electric water valve to be closed, and the display displays 'disinfection function is abnormal'.
g) The controller controls the ultraviolet germicidal lamp to be turned off.
h) Carrying out time delay timing and total time, wherein the total time length is longer than each time delay timing time length, and carrying out time delay timing for multiple times in the total timing time period; if the water detection device does not detect the water flow signal when the total timing period is over, performing the step g); if the water detection device detects a water flow signal when the total timing period is over, the display displays water leakage.
The method for detecting the water flow by the water detection device comprises the following steps: when water flows through the high-level conductive probe and the low-level conductive probe, the high-level conductive probe and the low-level conductive probe are conducted by the water flow, the controller detects that the potential between the high-level conductive probe and the low-level conductive probe changes, and the water flow is indicated, otherwise, the water flow is not indicated.
After the switch 14 is turned on, the controller 1 controls the electric water valve 21 and the water detection device 22 to be turned on, and after the water detection device 22 detects that the water passes through, the ultraviolet sterilizing lamp 231 of the ultraviolet sterilizing module 23 works, so that the working temperature of the ultraviolet sterilizing lamp 231 can be reduced, the service life is prolonged, and the heat dissipation effect can be enhanced by the ultraviolet sterilizing lamp radiator 232. When rivers and ultraviolet sterilization portion 24 contact, the connection face 241 that disinfects is not on the parallel line with the sterilizing equipment inner wall, the circulation speed that the connection face 241 that disinfects can slow down rivers, the contact time of the ultraviolet ray that extension ultraviolet germicidal lamp 231 sent and rivers, and the connection face 241 that disinfects is mirror surface aluminium reflection stratum, the ultraviolet ray contacts the back with rivers earlier and then disinfects the connection face 241 contact, contact with rivers again after the connection face 241 reflection of disinfecting, the bacterium in the rivers can fully be exterminateed to the ultraviolet ray like this. The controller 1 is provided with time delay timing and total time, so that the water detection device 22 can be prevented from detecting water when the water flow velocity is slow and does not reach the water detection device 22 due to water pressure or other reasons after the electric water valve 21 and the water detection device 22 are opened simultaneously. In this arrangement, when the water flow is not detected, the delay time and the total time are performed, and the calculation time length of the total time is longer than that of the delay time. And performing time delay timing for a plurality of times within the time for performing timing calculation. And operation is carried out according to the calculated result, so that misdetection is avoided.
According to the direct drinking water ultraviolet disinfection control system and the control method, the water detection device is positioned above the ultraviolet sterilization module, and by utilizing the conductivity of water, when water flows through the high-level conductive probe and the low-level conductive probe, the water flows conduct the high-level conductive probe and the low-level conductive probe, so that the potential between the high-level conductive probe and the low-level conductive probe is changed, and a signal of water flow or no water flow is received in the controller, and the precision for detecting whether water passes through is high; the working principle of the water flow detector is as follows: 2 electrically conductive probes of high-low level connect MCU's 2 IO mouth IOH and IOL respectively, and 2 electrically conductive probes are open circuit state, utilize ordinary drinking water conductive characteristic, when rivers pass through 2 electrically conductive probes, 2 IO mouth circuit intercommunication form the return circuit, judge that IO mouth circuit intercommunication state can judge whether have rivers to pass through. When the program is initialized, the IOH port level for the high level probe is set to 1 and the IOL port level for the low level probe is set to 0. The on-enable timing scan or interrupt mode detects the level state of the IOH. When no water flows through the probe, the high-low level probe is opened, and the level of the IOH port is kept to be 1. When water flows through the probe, the high-low level probe is communicated, the IOH and the IOL form a loop, and the IOH level is changed from 1 to 0. The program judges that water flows through the IOH potential state 0. When rivers flow through water detection device and flow down, rivers reachd the ultraviolet sterilization module through water detection device again, detect the rivers back of passing when water detection device, the ultraviolet germicidal lamp of ultraviolet sterilization module just opens, and the ultraviolet germicidal lamp does not have operating temperature when not having rivers like this, prolongs the life of ultraviolet germicidal lamp. For the ultraviolet sterilization module of the invention, the ultraviolet sterilization lamp can generate a large amount of heat, and the heat is one of the important factors influencing the service life of the ultraviolet sterilization lamp, because the plurality of radiating fins are arranged on the top surface of the mounting plate, and the water flow channels are arranged between the adjacent radiating fins, the water flowing down from the electric water valve directly flows onto the radiating fins, then the water flows into the sterilization connecting surface along the inner wall of the shell through the water channel along the edge of the mounting plate through the water drainage channel, in the process, most of the heat generated by the germicidal ultraviolet lamp is transferred to the ultraviolet germicidal lamp radiator, due to the action of the water flow, most of heat is taken away by the heat transfer water flow, and meanwhile, the heat is transferred into the water by the heat radiation, the heat is taken away through the water, so that the heat dissipation efficiency is greatly improved, the service life of the ultraviolet sterilizing lamp is prolonged, and the problem that the ultraviolet lamp is difficult to dissipate heat in direct drinking water is solved. Because of ultraviolet sterilization portion is located the sterilamp below, ultraviolet sterilization portion is by the upper and lower to the connection face that disinfects that is close to gradually in the middle of towards the casing, owing to formed the offal passageway between shells inner wall and mounting panel, consequently, the water through ultraviolet sterilization module passes through under the guide effect of offal passageway and shells inner wall, rivers on the connection face that disinfects are even and easy attached on the connection face that disinfects flows downwards, and the setting of the connection face that disinfects, the circulation speed of rivers can be slowed down to the connection face that disinfects, the ultraviolet ray that the extension sterilamp sent and the active time of rivers, the bacterium in the rivers can fully be exterminateed to the ultraviolet energy.
In the control method, because the step a) is arranged, whether the electric water valve needs to be opened or not can be directly and reliably judged by detecting the k value. Based on above-mentioned water detection device's structure, then can be accurate judge whether have rivers to pass through, be convenient for can reliably open the sterilamp, just so can avoid influencing the life-span of sterilamp because of there is not rivers and open the sterilamp by mistake. In the steps, the steps of time delay timing and total timing are adopted, when the electric water valve is opened, in order to avoid the situation that water is judged to be not water by mistake due to time delay, whether water exists or not is judged by adopting time delay timing for multiple times in the time period of the total timing, and the accuracy of system judgment is improved. After the electric water valve is closed, the steps are adopted to detect whether water leakage exists or not, so that the detection accuracy and reliability are improved.
Claims (8)
1. The utility model provides a straight drinking water ultraviolet disinfection control system, includes the sterilizing equipment of controller and controller control, its characterized in that: the sterilizing device comprises a shell, an electric water valve, a water detecting device, an ultraviolet sterilizing module, an ultraviolet detecting sensor, an ultraviolet sterilizing part and a water outlet channel; a cavity is arranged in the shell; the electric water valve is positioned at the upper end of the cavity, and water flow enters the cavity from the electric water valve; the ultraviolet sterilization module is positioned in the cavity and below the electric water valve; the water detection device is positioned between the electric water valve and the ultraviolet sterilization module; the ultraviolet sterilization part is positioned in the cavity and below the ultraviolet sterilization module; the ultraviolet sterilization part comprises a sterilization connecting surface, and a sterilization space is formed in the sterilization connecting surface; the water outlet channel is communicated with the sterilization space; the ultraviolet detection sensor is arranged on the sterilization connecting surface and is connected with the controller; the sterilization connecting surface is an inclined surface or an arc surface which gradually extends from top to bottom to the center of the shell, and a reflecting layer is arranged on the sterilization connecting surface; the sterilization connecting surface can slow down the flowing speed of water flow, the action time of ultraviolet rays emitted by the ultraviolet sterilization lamp and the water flow is prolonged, and the ultraviolet rays can fully kill bacteria in the water flow; the reflecting layer enables the ultraviolet rays to react with water flow again after being reflected, so that the sterilizing effect is enhanced;
the ultraviolet sterilization module comprises an ultraviolet sterilization lamp and an ultraviolet sterilization lamp radiator, the ultraviolet sterilization lamp is installed at the bottom of the ultraviolet sterilization lamp radiator, and the ultraviolet sterilization lamp radiator comprises an installation plate and more than two radiating fins arranged on the top surface of the installation plate; a water flow channel is arranged between the adjacent radiating fins, and a water drainage channel is formed between the mounting plate and the inner wall of the shell.
2. A direct drinking water ultraviolet disinfection control system as set forth in claim 1, characterized in that: the water detection device comprises a high-level conductive probe and a low-level conductive probe, the high-level conductive probe and the low-level conductive probe are respectively connected to the controller, the high-level conductive probe and the low-level conductive probe are arranged in the up-down direction, and a gap is reserved between the high-level conductive probe and the low-level conductive probe.
3. A direct drinking water ultraviolet disinfection control system as set forth in claim 1, characterized in that: the upper end of the ultraviolet sterilization part is provided with a vertical guide surface connected with the upper end of the sterilization connecting surface.
4. A direct drinking water ultraviolet disinfection control system as set forth in claim 1, characterized in that: more than two connecting ribs are arranged between the mounting plate and the shell, and the drainage channel is formed between the adjacent connecting ribs.
5. A direct drinking water ultraviolet disinfection control system as set forth in claim 1, characterized in that: the radiating fins are arranged in parallel.
6. A direct drinking water ultraviolet disinfection control system as set forth in claim 1, characterized in that: the section of the radiating fin is a trapezoid with a small upper part and a big lower part.
7. A direct drinking water ultraviolet disinfection control system as set forth in claim 1, characterized in that: the controller comprises a power supply, a storage battery, a display, a switch and a control chip with a time delay timing function and a total time function.
8. A control method of a direct drinking water ultraviolet disinfection control system as set forth in any one of claims 1-7, characterized by comprising the steps of:
a) setting the K value corresponding to the on-off key to 0; pressing a switch key, judging the value of K, and performing step b) when K = 1) and performing step c) when K = 0;
b) the controller controls the electric water valve to start, the water detection device starts and detects a water flow signal, and when the water flow signal is detected, the step d) is carried out, and the step e) is carried out when the water flow signal is not detected;
c) the controller controls the electric water valve to be closed, the water detection device is started, the water flow signal is detected, and the step g is carried out if the water flow signal is not detected); when the water flow signal is detected, the step h) is carried out,
d) the controller controls the ultraviolet germicidal lamp to start, the controller controls the ultraviolet detection sensor to start, ultraviolet detection is carried out through the ultraviolet detection sensor, when the ultraviolet detection sensor detects an ultraviolet signal, the display displays 'normal', and when the ultraviolet signal is not detected, the step f) is carried out;
e) the total timing is the total duration of the detected water flow signal; the delay timer is a time period for detecting the water flow signal in the total time; carrying out time delay timing and total time, wherein the total time length is longer than each time delay timing time length, and carrying out time delay timing for multiple times in the total timing time period; if the water detection device detects the water flow signal when the total timing period is over, performing the step d), and if the water detection device does not detect the water flow signal when the total timing period is over, displaying 'no water' on the display;
f) the controller controls the electric water valve to be closed, and the display displays 'disinfection function is abnormal';
g) the controller controls the ultraviolet germicidal lamp to be turned off;
h) the total timing is the total duration of the detected water flow signal; the delay timer is a time period for detecting the water flow signal in the total time; carrying out time delay timing and total time, wherein the total time length is longer than each time delay timing time length, and carrying out time delay timing for multiple times in the total timing time period; if the water detection device does not detect the water flow signal when the total timing period is over, performing the step g); if the water detection device detects a water flow signal when the total timing period is over, the display displays water leakage;
the method for detecting the water flow by the water detection device comprises the following steps: when water flows through the high-level conductive probe and the low-level conductive probe, the high-level conductive probe and the low-level conductive probe are conducted by the water flow, the controller detects that the potential between the high-level conductive probe and the low-level conductive probe changes, and the water flow is indicated, otherwise, the water flow is not indicated.
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| CN201415960Y (en) * | 2008-12-19 | 2010-03-03 | 浙江省医疗器械研究所 | Intensive light pulse sterilizing and filtering device |
| CN106629987A (en) * | 2016-11-28 | 2017-05-10 | 滕方剑 | Domestic manually/automatically controlled ultraviolet light gathering sterilizing drinking water device |
| CN108439534A (en) * | 2018-05-14 | 2018-08-24 | 中山市威可利节能环保设备有限公司 | Ultraviolet sterilization type water dispenser and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202597897U (en) * | 2012-05-09 | 2012-12-12 | 张世易 | Faucet with sterilization function |
| JP6373792B2 (en) * | 2015-04-22 | 2018-08-15 | 日機装株式会社 | Sterilizer |
| CN207216270U (en) * | 2017-09-12 | 2018-04-10 | 扬州思普尔科技有限公司 | A kind of new type light source for exposure machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201415960Y (en) * | 2008-12-19 | 2010-03-03 | 浙江省医疗器械研究所 | Intensive light pulse sterilizing and filtering device |
| CN106629987A (en) * | 2016-11-28 | 2017-05-10 | 滕方剑 | Domestic manually/automatically controlled ultraviolet light gathering sterilizing drinking water device |
| CN108439534A (en) * | 2018-05-14 | 2018-08-24 | 中山市威可利节能环保设备有限公司 | Ultraviolet sterilization type water dispenser and control method thereof |
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