CN107337253B - Ultraviolet sterilization device - Google Patents
Ultraviolet sterilization device Download PDFInfo
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- CN107337253B CN107337253B CN201710196249.8A CN201710196249A CN107337253B CN 107337253 B CN107337253 B CN 107337253B CN 201710196249 A CN201710196249 A CN 201710196249A CN 107337253 B CN107337253 B CN 107337253B
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 24
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 202
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000005416 organic matter Substances 0.000 claims abstract description 65
- 230000000249 desinfective effect Effects 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 35
- 238000002955 isolation Methods 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000011521 glass Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- 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
- C02F2101/30—Organic compounds
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- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Physical Water Treatments (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention relates to an ultraviolet sterilization device, which comprises an ultraviolet lamp tube (1) capable of emitting ultraviolet rays and a sterilization cavity matched with the ultraviolet lamp tube (1) and used for sterilizing water flowing through an inner cavity of the sterilization cavity, and is characterized in that: the water quality detection device is characterized by further comprising an organic matter detection sensor for detecting the organic matter content of the water quality, wherein the organic matter detection sensor comprises a detection assembly which is matched with the ultraviolet lamp tube (1) and can detect the organic matter content of the water, a detection tube (2), a detection group ultraviolet receiver (3) and a circuit board (4). Compared with the prior art, the invention has the advantages that: ultraviolet light that utilizes self ultraviolet fluorescent tube to send, then through setting up detection group ultraviolet receiver and circuit board, the ultraviolet intensity through detecting group ultraviolet receiver and receiving obtains through the aquatic organic matter content in the bactericidal tube to make ultraviolet sterilizing equipment when having the function of disinfecting, still possess organic matter content detection function.
Description
Technical Field
The present invention relates to an ultraviolet sterilizer.
Background
At present, many water purifiers on the market use ultraviolet sterilizing devices, and are mainly used for sterilizing tail-end purified water of the water purifiers. The ultraviolet sterilization device has only one sterilization function and is high in cost.
In addition, the detection of the organic matter content at present mainly relies on a spectrophotometer, and the working principle is as follows: the total content of organic matters is indirectly represented by the absorbance of ultraviolet rays with the wavelength of 254 nanometers, after the ultraviolet rays with the wavelength of 254 nanometers penetrate through water, the organic matters in the water absorb partial ultraviolet rays, the higher the concentration of the organic matters is, the higher the intensity of ultraviolet ray absorption is, and therefore, the absorbance of the ultraviolet rays corresponds to the content of the organic matters. Different organic matters have different absorption intensities aiming at different wavelengths of ultraviolet rays, and the content of different types of organic matters in the water can be roughly analyzed by scanning the absorption intensities of the ultraviolet rays with different wavelengths. The measurement of the total content, i.e. the comprehensive index of the content of different organic matters, is mainly reflected on ultraviolet rays with the wavelength of 254 nanometers.
However, the spectrophotometer itself is an instrument, which is very expensive and bulky, and above all, it has a certain obstacle to the use of ordinary people.
Along with the improvement of the living standard of people, the water purifier is used for filtering tap water, and then the drinking of the filtered clean pure water becomes a common healthy drinking water mode in daily life of people. The filter element of the water purifier can generally filter most of impurities, metals and organic matters in water. Then, the existing water purifier often can not visually and clearly display the content of organic matters in unfiltered and filtered water, and the user experience is not good.
Disclosure of Invention
The present invention provides an ultraviolet sterilizer with organic substance detection function, which aims at solving the technical problem of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: an ultraviolet sterilization device comprises an ultraviolet lamp tube which can emit ultraviolet rays and a sterilization cavity which is matched with the ultraviolet lamp tube and is used for sterilizing water flowing through an inner cavity of the ultraviolet lamp tube, and is characterized in that: the device also comprises an organic matter detection sensor for detecting the organic matter content of the water, the organic matter detection sensor comprises a detection component which can be matched with the ultraviolet lamp tube and can detect the organic matter content in the water, and the detection component comprises
The detection tube can be penetrated by ultraviolet rays emitted by the ultraviolet lamp tube, and detected water can pass through the detection tube;
the detection group ultraviolet receiver is used for detecting the intensity of ultraviolet rays emitted from the ultraviolet lamp tube and penetrating through the detection tube;
the circuit board is used for calculating the content of organic matters in water passing through the detection pipe according to the intensity of ultraviolet rays received by the detection group ultraviolet receivers.
The organic matter detection sensor also comprises a shell, wherein an ultraviolet lamp tube accommodating hole allowing an ultraviolet lamp tube to penetrate through is formed in the shell, and the ultraviolet lamp tube penetrates through the ultraviolet lamp tube accommodating hole; a detection tube accommodating cavity communicated with the ultraviolet lamp tube accommodating hole is further formed in the shell, and the detection tube is arranged in the sterilizing tube accommodating cavity; the detection group ultraviolet receiver is arranged in the shell and is opposite to the detection tube.
As an improvement, an isolation shading protective sleeve is sleeved outside the ultraviolet lamp tube, and the ultraviolet lamp tube is arranged in an ultraviolet lamp tube accommodating cavity of the shell or is arranged in an ultraviolet lamp tube accommodating hole in a penetrating manner after being sleeved with the isolation shading protective sleeve; the isolation shading protective sleeve is provided with a detection light transmitting hole; ultraviolet rays emitted by the ultraviolet lamp tube penetrate through the detection tube to reach the detection group ultraviolet receiver after passing through the detection light holes. The isolating and shading protective sleeve is used for isolating the ultraviolet lamp tube and preventing the shell from aging caused by the irradiation of ultraviolet rays emitted by the ultraviolet lamp tube. Through set up at the protection cover of keeping apart the shading and detecting the light trap, can make the light emission angle between ultraviolet fluorescent tube and the detection group ultraviolet receiver less to reduce the light and because refraction and the uncertainty of the detection data that the reflection caused in the data send process.
And the shell is connected with a water inlet joint and a water outlet joint which are respectively communicated with two ends of the detection pipe.
And the parts of the water inlet joint and the water outlet joint, which are connected with the two ends of the detection pipe, are provided with sealing rings.
And the detection group ultraviolet receiver is fixed on the circuit board and then positioned in the detection light channel.
Ultraviolet lamps are generally adopted as ultraviolet lamp tubes capable of emitting ultraviolet rays, and the intensity of the ultraviolet rays emitted by the ultraviolet lamps can be attenuated to a certain extent along with the prolonging of the service time, so that the detection accuracy is improved. The organic matter sensor also comprises a comparison component which is also arranged in the shell, wherein a better scheme of the comparison component is as follows:
the comparison component comprises a comparison group ultraviolet receiver which can detect the intensity of ultraviolet rays directly emitted from the ultraviolet lamp tube, the comparison group ultraviolet receiver is also connected with the circuit board, and the circuit board calculates the content of organic matters in water passing through the detection tube according to the intensity of the ultraviolet rays received by the detection group ultraviolet receiver and the intensity of the ultraviolet rays received by the comparison group ultraviolet receiver;
the isolation shading protective sleeve is provided with a contrast light hole, and the contrast group ultraviolet receiver is arranged in the shell and is opposite to the contrast light hole, so that ultraviolet rays emitted by the ultraviolet lamp tube directly reach the contrast group ultraviolet receiver after passing through the contrast light hole. Through set up the contrast light trap at the isolation shading protective sheath, can make the light emission angle between ultraviolet fluorescent tube and the ultraviolet receiver of contrast group less to reduce the light and because the uncertainty of the detected data that refraction and reflection caused in the data send process.
The contrast assembly and the detection assembly can be arranged at the same side of the ultraviolet lamp tube, and the detection light hole and the contrast light hole are positioned at the same side of the isolation shading protective sleeve; the shell is internally provided with a contrast light channel which is communicated with and right opposite to the contrast light hole, and the contrast group ultraviolet receiver is arranged in the contrast light channel.
The contrast assembly and the detection assembly can also be symmetrically arranged at two opposite sides of the ultraviolet lamp tube accommodating cavity, and the detection light transmitting hole and the contrast light transmitting hole are symmetrically arranged at two opposite sides of the isolation shading protective sleeve; the shell is provided with a comparison group ultraviolet receiver mounting hole which is opposite to the comparison light transmitting hole, and the comparison group ultraviolet receiver is arranged in the comparison group ultraviolet receiver mounting hole.
The contrast assembly and the detection assembly can also be positioned at different sides outside the ultraviolet lamp tube accommodating cavity, the detection light transmission hole and the contrast light transmission hole are arranged at different positions of the same circumference of the isolation shading protective sleeve, an included angle of 180 degrees is formed between the detection light transmission hole and the central point connecting line of the same circumference of the isolation shading protective sleeve, a contrast light channel which is communicated with and right opposite to the contrast light transmission hole is arranged in the shell, and the contrast group ultraviolet receiver is arranged in the contrast light channel.
In another preferred embodiment, the control module comprises:
the contrast tube can be penetrated by ultraviolet rays emitted by the ultraviolet lamp tube, and the interior of the contrast tube is vacuum or provided with air or pure water;
a control group ultraviolet receiver for detecting the intensity of the ultraviolet rays emitted from the ultraviolet lamp tube and penetrating the control tube;
the comparison group ultraviolet receiver is also connected with the circuit board, and the circuit board calculates the content of organic matters in the water passing through the detection pipe according to the ultraviolet intensity received by the detection group ultraviolet receiver and the ultraviolet intensity received by the comparison group ultraviolet receiver.
The isolation protective sleeve can be provided with a contrast light transmitting hole, and ultraviolet rays emitted by the ultraviolet lamp tube penetrate through the contrast tube to reach a contrast group ultraviolet receiver after passing through the contrast light transmitting hole.
At this time, the contrast assembly and the detection assembly can be arranged on the same side of the ultraviolet lamp tube, and the detection light hole and the contrast light hole are positioned on the same side of the isolation shading protective sleeve; a contrast tube accommodating cavity communicated with the contrast light transmitting hole is formed in the shell, and the contrast tube is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver is arranged in the shell and is opposite to the contrast tube, so that ultraviolet rays emitted by the ultraviolet lamp tube pass through the contrast light holes and then penetrate through the contrast tube to reach the contrast group ultraviolet receiver.
The contrast assembly and the detection assembly can also be symmetrically arranged at two opposite sides of the ultraviolet lamp tube accommodating cavity, and the detection light transmitting hole and the contrast light transmitting hole are symmetrically arranged at two opposite sides of the isolation shading protective sleeve; a contrast tube accommodating cavity communicated with the contrast light transmitting hole is formed in the shell, and the contrast tube is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver is arranged in the shell and is opposite to the contrast tube, so that ultraviolet rays emitted by the ultraviolet lamp tube pass through the contrast light holes and then penetrate through the contrast tube to reach the contrast group ultraviolet receiver.
The contrast assembly and the detection assembly can also be positioned at different sides outside the ultraviolet lamp tube accommodating cavity, the detection light transmitting hole and the contrast light transmitting hole are arranged at different positions of the same circumference of the isolation shading protective sleeve, and form an included angle of non-180 degrees with the connecting line of the central points of the same circumference of the isolation shading protective sleeve, a contrast tube accommodating cavity communicated with the contrast light transmitting hole is arranged in the shell, and a contrast tube is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver is arranged in the shell and is opposite to the contrast tube, so that ultraviolet rays emitted by the ultraviolet lamp tube pass through the contrast light holes and then penetrate through the contrast tube to reach the contrast group ultraviolet receiver.
When the isolation protective sleeve is not specially provided with a contrast light transmitting hole and only provided with a detection light transmitting hole, a light guide channel which is opposite to and communicated with the detection light transmitting hole, a light splitting channel with the middle part vertical to the light guide channel and a spectroscope for uniformly dispersing ultraviolet rays in the light guide channel to two sides of the light splitting channel are arranged in the shell, and the detection tube accommodating cavity is arranged on one side of the light splitting channel; a contrast tube accommodating cavity is formed in the shell and positioned on the other side of the light splitting channel, and the contrast tube is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver is arranged in the shell and opposite to the contrast tube, so that ultraviolet rays emitted by the ultraviolet lamp tube pass through the detection light transmitting holes and the light guide channel, enter the light splitting channel through the spectroscope and then penetrate through the contrast tube to reach the contrast group ultraviolet receiver.
The inner wall of the light guide channel is provided with a first isolation protective sleeve.
And a second isolation protective sleeve is arranged on the inner wall of the light splitting channel.
The invention also comprises a temperature sensor which is contacted with the ultraviolet lamp tube and is used for detecting the temperature of the ultraviolet lamp tube; when the content of organic matters in the water of the circuit board is high, the main interference factor is the change of the ultraviolet lamp tube, and the change of the ultraviolet lamp tube is mainly due to the temperature, and the temperature of the ultraviolet lamp tube can be gradually increased along with the increase of the service time of the ultraviolet lamp tube; because the ultraviolet intensity is enhanced along with the temperature increase in the characteristics of the ultraviolet lamp, in order to improve the detection accuracy, a temperature sensor which is in contact with the ultraviolet lamp tube and is used for detecting the temperature of the ultraviolet lamp tube is arranged in the shell, and then the temperature sensor is compensated through a temperature calculation result, so that the detection accuracy can be effectively improved.
And the organic matter detection sensor is arranged on one side of the ultraviolet lamp tube, a glass sleeve is sleeved outside the ultraviolet lamp tube, a metal shell is sleeved outside the glass sleeve, and a shell of the organic matter detection sensor is connected with the end part of the metal shell.
And a display screen connected with a circuit board of the organic matter detection sensor and used for displaying the content of the organic matters in the water flowing through the sterilizing pipe is arranged on the metal shell or the shell.
Compared with the prior art, the invention has the advantages that: ultraviolet light that utilizes self ultraviolet fluorescent tube to send, then through setting up detection group ultraviolet receiver and circuit board, the ultraviolet intensity through detecting group ultraviolet receiver and receiving obtains through the aquatic organic matter content in the bactericidal tube to make ultraviolet sterilizing equipment when having the function of disinfecting, still possess organic matter content detection function.
Drawings
FIG. 1 is a schematic perspective view of an ultraviolet sterilization apparatus according to an embodiment of the present invention;
FIG. 2 is a perspective sectional view of an ultraviolet sterilization apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a first embodiment of an organic detection sensor according to an embodiment of the present invention;
FIG. 4 is a perspective cross-sectional view of a first embodiment of an organic matter detection sensor in an embodiment of the present invention;
FIG. 5 is an exploded perspective view of a first embodiment of an organic detection sensor in accordance with embodiments of the present invention;
FIG. 6 is an exploded perspective view of an alternative perspective of the organic detection sensor in accordance with an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a second embodiment of an organic detection sensor in accordance with an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a second version of an organic matter detection sensor in an embodiment of the present invention;
FIG. 9 is a cross-sectional view of a third embodiment of an organic matter detecting sensor in accordance with the present invention;
FIG. 10 is a cross-sectional view of a fourth version of an organic matter detection sensor in an embodiment of the present invention;
FIG. 11 is a cross-sectional view of a fifth embodiment of an organic matter detecting sensor in an embodiment of the present invention;
FIG. 12 is a schematic perspective view of a sixth embodiment of an organic substance detection sensor in accordance with the present invention;
FIG. 13 is a perspective cross-sectional view of a sixth alternative organic matter detecting sensor in accordance with an embodiment of the present invention;
FIG. 14 is a schematic perspective view of a seventh embodiment of an organic substance detection sensor in an embodiment of the present invention;
fig. 15 is a perspective sectional view of a seventh embodiment of the organic matter detecting sensor in the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The ultraviolet sterilizer shown in fig. 1 and 2 comprises an ultraviolet lamp tube 1 capable of emitting ultraviolet rays, a glass sleeve 12 is sleeved outside the ultraviolet lamp tube 1, a metal shell 13 is sleeved outside the glass sleeve, a space formed between the metal shell 13 and the glass sleeve 12 is a sterilization cavity, a water inlet 13a and a water outlet 13b are formed in the metal shell 13, and one side of the ultraviolet lamp tube 1 is connected with an organic matter detection sensor for detecting the content of organic matters in water.
There are various configurations of the organic matter detecting sensor, and various schemes of the organic matter detecting sensor configuration will be described in detail below:
first embodiment of the organic matter detection sensor:
referring to fig. 3 to 6, the ultraviolet lamp comprises a housing 7, an ultraviolet lamp accommodating hole for allowing the ultraviolet lamp 1 to pass through is formed in the middle of the housing 7, and one side of the ultraviolet lamp 1 is inserted into the ultraviolet lamp accommodating hole. One end of the housing 7 may be screwed with the end of the metal shell 13 by a connection joint. A detection component which is matched with the ultraviolet lamp tube 1 and can detect the content of organic matters in water and a comparison component which is matched with the detection component for use are arranged in the shell 7.
Wherein the detection assembly comprises
A detecting tube 2 which can be penetrated by the ultraviolet rays emitted by the ultraviolet lamp tube 1, and water can pass through the detecting tube 2;
a detection group ultraviolet receiver 3 for detecting the intensity of the ultraviolet rays emitted from the ultraviolet lamp tube 1 and penetrating the detection tube 2;
the comparison component comprises:
a comparison tube 6 which can be penetrated by the ultraviolet rays emitted by the ultraviolet lamp tube 1, wherein the comparison tube 6 is internally vacuumized or provided with air or pure water;
a control group ultraviolet receiver 5 for detecting the intensity of the ultraviolet rays emitted from the ultraviolet lamp tube 1 and penetrating the control tube 6;
the detection group ultraviolet receiver 3 and the comparison group ultraviolet receiver 5 are both connected with the circuit board 4, and the circuit board 4 calculates the content of organic matters in the water passing through the detection tube 2 according to the ultraviolet intensity received by the detection group ultraviolet receiver 3 and the ultraviolet intensity received by the comparison group ultraviolet receiver 5.
The operation of the circuit board 4 can also be directly replaced by the controller unit 105 of the water quality on-line detection system.
In the scheme, the organic matter detection sensor comprises a shell 7 formed by assembling a first shell 7a and a second shell 7b, wherein an ultraviolet lamp tube accommodating hole allowing an ultraviolet lamp tube to pass through is formed in the middle of the shell 7, and one side of the ultraviolet lamp tube 1 penetrates through the ultraviolet lamp tube accommodating hole; a detection tube accommodating cavity communicated with the ultraviolet lamp tube accommodating hole is further formed in the first shell 7a, and the detection tube 2 is arranged in the detection tube accommodating cavity; the detection group ultraviolet receiver is arranged in the first shell 7a and is opposite to the detection tube 2. A contrast tube accommodating cavity communicated with the ultraviolet lamp tube accommodating hole is formed in the second shell 7b, and the contrast tube 6 is arranged in the contrast tube accommodating cavity; the control group ultraviolet receiver 5 is disposed in the second housing 7b and opposed to the control tube 6.
An isolation shading protective sleeve 8 is sleeved outside one side of the ultraviolet lamp tube 1, and the isolation shading protective sleeve 8 is sleeved on one side of the ultraviolet lamp tube 1 and then penetrates through an ultraviolet lamp tube accommodating hole of the shell 7; the isolation shading protective sleeve 8 is provided with a detection light transmission hole 81; ultraviolet rays emitted by the ultraviolet lamp tube 1 pass through the detection light transmitting holes 81 and then penetrate through the detection tube 2 to reach the detection group ultraviolet receiver 3. The isolation shading protective sleeve 8 is also provided with a contrast light hole 82; ultraviolet rays emitted by the ultraviolet lamp tube 1 pass through the contrast light holes 82 and then penetrate through the contrast tube 6 to reach the contrast group ultraviolet receiver 5.
The first housing 7a is connected with a water inlet connector 71 and a water outlet connector 72 which are respectively communicated with two ends of the detection tube 2, and sealing rings 73 are arranged at the connecting parts of the water inlet connector 71 and the water outlet connector 72 and the two ends of the detection tube 2.
The circuit board 4 may be fixed on the first casing 7a or the second casing 7b, in this embodiment, the circuit board 4 is fixed on the first casing 7a, the comparison group ultraviolet receiver 5 is installed on a side plate, the side plate is fixed on the second casing 7b, and the output end of the comparison group ultraviolet receiver 5 is connected with the circuit board 4 through a wire.
A detection light channel 74 communicated with the detection tube accommodating cavity is arranged in the first shell 7a, and the detection group ultraviolet receiver 3 is fixed on the circuit board 4 and then positioned in the detection light channel 74; a contrast light channel 75 communicated with the contrast tube accommodating cavity is arranged in the second shell 7b, and the contrast group ultraviolet receiver 5 is fixed on the side plate and then positioned in the contrast light channel 75.
In this scheme, contrast subassembly and detection subassembly symmetry set up the double-phase offside in ultraviolet fluorescent tube holding hole, promptly: the contrast assembly and the detection assembly are symmetrically arranged; the detection light transmission holes 81 and the comparison light transmission holes 82 are symmetrically arranged at two opposite sides of the isolation shading protective sleeve 8; the advantage of this arrangement is that the ultraviolet rays taken by the detection group and the ultraviolet rays taken by the comparison group come from the same circumferential position of the ultraviolet lamp tube 1, so the original light intensity difference of the ultraviolet rays taken by the detection group and the comparison group is very small; the disadvantages are that: however, if the ultraviolet lamp tube is radially offset after being installed, a large deviation occurs in the detection data obtained by the comparison component and the detection component.
In order to display the content of organic matters in real time, a display screen 14 connected with the circuit board 4 and used for displaying the content of organic matters in the water flowing through the detection tube 2 is also arranged on the metal shell 13.
The detection method of the organic matter detection sensor in the embodiment includes the following steps:
step (1), vacuumizing a contrast tube 6, or keeping the contrast tube 6 full of air, or filling pure water into the contrast tube 6, starting the ultraviolet lamp tube 1, recording the ultraviolet intensity value received by an ultraviolet receiver 5 of the contrast group by a circuit board 4, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
step (2), preparing N parts of reference water samples with known organic matter content and different organic matter content, keeping the ultraviolet lamp tube 1 open, then sequentially passing the N parts of reference water samples through the reference tube 6, sequentially recording ultraviolet intensity values received by a reference group ultraviolet receiver 5 when the N parts of reference water samples flow through the reference tube 6 by a circuit board 4, and recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value respectively, wherein N is a natural number more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N ultraviolet intensity reference values obtained in the step (2);
step (4), keeping the ultraviolet lamp tube 1 open, vacuumizing the comparison tube 6, or keeping the comparison tube 6 filled with air, or filling pure water into the comparison tube 6; and (2) allowing the water to be detected to flow through the detection tube 2, recording the ultraviolet intensity value received by the ultraviolet receiver 3 of the detection group at this time by the circuit board 4, recording the ultraviolet intensity value as an ultraviolet intensity detection value, recording the ultraviolet intensity value received by the ultraviolet receiver 5 of the comparison group at the same time, recording the ultraviolet intensity value as a temporary ultraviolet intensity reference value, dividing the temporary ultraviolet intensity reference value by the first ultraviolet intensity reference value to obtain an ultraviolet lamp tube intensity attenuation ratio, multiplying the ultraviolet intensity detection value by the ultraviolet lamp tube intensity attenuation ratio to obtain an ultraviolet intensity search value, and then obtaining the organic matter content in the water to be detected at this time by inquiring the comparison table obtained in the step (3) by adopting the ultraviolet intensity search value.
In the detection method, the main interference factor is the change of the ultraviolet lamp tube, and the change of the ultraviolet lamp tube is mainly due to the temperature, and the temperature of the ultraviolet lamp tube gradually rises along with the increase of the service time of the ultraviolet lamp tube; because the ultraviolet intensity in the ultraviolet lamp characteristic will be strengthened with the temperature becoming higher, in order to further improve the precision of detection, also include the temperature sensor 11 used for detecting the temperature of said ultraviolet lamp tube 1 in contact with said ultraviolet lamp tube 1 in the body 7; in the step (1) and the step (2), the ultraviolet lamp tube 1 is kept open, then the temperature of the ultraviolet lamp tube 1 is detected in real time through the temperature sensor 11, and a plurality of first ultraviolet intensity reference values, a plurality of second ultraviolet intensity reference values, a plurality of third ultraviolet intensity reference values and a plurality of N +1 ultraviolet intensity reference values of … … under different temperature values of the ultraviolet lamp tube (1) are recorded; then, the step (3) obtains a comparison table between the organic matter content in a comparison water sample and the ultraviolet forced reference value of the ultraviolet lamp tube under different temperature values; and finally, in the step (4), the ultraviolet lamp tube 1 is kept opened, the temperature of the ultraviolet lamp tube (1) is detected in real time through the temperature sensor 11, and the content of the organic matters in the water to be detected at the moment is obtained through table lookup according to the current temperature value of the ultraviolet lamp tube 1 and the current ultraviolet intensity detection value.
A second embodiment of the organic matter detection sensor:
referring to fig. 7 and 8, in contrast to the first solution, only the detection assembly is included in the housing 7, and the control assembly is not provided.
The detection method of the organic matter detection sensor in the scheme comprises the following steps:
step (1), vacuumizing a detection tube 2, or keeping the detection tube 2 filled with air, or filling pure water into the detection tube 2, then starting an ultraviolet lamp tube 1, recording an ultraviolet intensity value received by an ultraviolet receiver 3 of the detection group by a circuit board 4, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
step (2), preparing N parts of reference water samples with known organic matter content and different organic matter content, keeping the ultraviolet lamp tube 1 open, then sequentially passing the N parts of reference water samples through the detection tube 2, sequentially recording ultraviolet intensity values received by the detection group ultraviolet receivers 3 when the N parts of reference water samples flow through the detection tube 2 by the circuit board 4, and recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value respectively, wherein N is a natural number which is more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N +1 parts of ultraviolet intensity reference values obtained in the step (1) and the step (2);
and (4) keeping the ultraviolet lamp tube 1 open, enabling water to be detected to flow through the detection tube 2, recording the ultraviolet intensity value received by the ultraviolet receiver 3 of the detection group by the circuit board 4, recording the ultraviolet intensity value as an ultraviolet intensity detection value, and then obtaining the content of the organic matters in the water to be detected at the moment by inquiring the comparison table obtained in the step (3).
A third embodiment of the organic matter detection sensor:
different from the first scheme, the comparison component and the detection component are arranged on the same side of the ultraviolet lamp tube 1, and the detection light transmission hole 81 and the comparison light transmission hole 82 are positioned on the same side of the isolation and shading protective sleeve 8; the internal structure thereof is shown in fig. 9.
In this embodiment, the advantage of the control assembly and the detection assembly being on the same side is that when the position of the ultraviolet lamp is shifted radially, the detection assembly and the control assembly take less ultraviolet intensity deviation; the disadvantages are that: because the intensity of the light emitted by the ultraviolet lamp at different axial positions may have a certain deviation, the light intensity of the ultraviolet lamp in the axial direction needs to be consistent in this embodiment.
The detection method of the organic matter detection sensor in the scheme is the same as that of the first scheme.
A fourth embodiment of the organic matter detection sensor:
unlike the first embodiment, the control module comprises only the control group ultraviolet receiver 5, and no control tube is provided, and the control group ultraviolet receiver 5 is directly provided in the control light path 75, and the internal structure thereof is shown in fig. 10. The ultraviolet rays emitted from the ultraviolet lamp tube 1 directly reach the contrast group ultraviolet receiver 5 through the contrast light transmitting hole 82 along the contrast light channel 75.
The detection method of the organic matter detection sensor in the embodiment includes the following steps:
step (1), starting the ultraviolet lamp tube 1, recording the ultraviolet intensity value received by the ultraviolet receiver 5 of the comparison group by the circuit board 4, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
step (2), preparing N parts of reference water samples with known organic matter content and different organic matter content, keeping the ultraviolet lamp tube 1 open, then sequentially passing the N parts of reference water samples through the detection tube 2, sequentially recording ultraviolet intensity values received by the detection group ultraviolet receivers 3 when the N parts of reference water samples flow through the detection tube 2 by the circuit board 4, and recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value respectively, wherein N is a natural number which is more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N ultraviolet intensity reference values obtained in the step (2);
and (4) keeping the ultraviolet lamp tube 1 open, enabling water to be detected to flow through the detection tube 2, recording an ultraviolet intensity value received by the ultraviolet receivers 3 of the detection group at this time by the circuit board 4, recording the ultraviolet intensity value as an ultraviolet intensity detection value, recording an ultraviolet intensity value received by the ultraviolet receivers 5 of the comparison group at the same time, recording the ultraviolet intensity value as a temporary ultraviolet intensity reference value, dividing the temporary ultraviolet intensity reference value by the first ultraviolet intensity reference value to obtain an ultraviolet lamp tube intensity attenuation ratio, dividing the ultraviolet intensity detection value by the ultraviolet lamp tube intensity attenuation ratio to obtain an ultraviolet intensity search value, and then obtaining the organic matter content in the water to be detected at this time by using the ultraviolet intensity search value and inquiring the comparison table obtained in the step (3).
The fifth embodiment of the organic matter detection sensor:
different from the fourth scheme, the comparison component and the detection component are arranged on the same side of the ultraviolet lamp tube, the external configuration of the shell is the same as that of the second scheme, and the internal structure is shown in fig. 11.
The detection method of the organic matter detection sensor in the present embodiment is the same as that in the fourth embodiment.
A sixth aspect of the organic matter detection sensor:
different from the fourth scheme, the casing 7 is an integral piece, the comparison component and the detection component are located at different sides outside the ultraviolet lamp accommodating cavity, the detection light transmission hole 81 and the comparison light transmission hole 82 are arranged at different positions of the same outer circumference of the isolation and shading protective sleeve 8, and an included angle of not 180 degrees is formed between the connection line of the central points of the same circumference of the isolation and shading protective sleeve 8, the included angle in the embodiment is 60 degrees, the appearance structure of the casing is shown in fig. 12, and the internal structure of the casing is shown in fig. 13.
A seventh aspect of the organic matter detecting sensor:
different from the first scheme, the isolating and light-shielding protective sleeve 8 is provided with only one detection light-transmitting hole 81, the shell 7 is provided with a light guide channel 76 opposite to and communicated with the detection light-transmitting hole 81, a light splitting channel 77 with the middle part perpendicular to the light guide channel 76, and a light splitter 78 for uniformly dispersing ultraviolet rays in the light guide channel 76 to two sides of the light splitting channel 77, wherein the light splitter 78 is a prism; the detection tube accommodating cavity is arranged on one side of the light splitting channel 77; a contrast tube accommodating cavity is formed in the shell 7 and positioned on the other side of the light splitting channel 77, and the contrast tube 6 is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver 5 is arranged in the shell 7 and opposite to the contrast tube 6, so that ultraviolet rays emitted by the ultraviolet lamp tube 1 pass through the detection light transmitting hole 81 and the light guide channel 76, then enter the light splitting channel 77 through the light splitter 78, and then penetrate through the contrast group ultraviolet receiver 5 after passing through the contrast tube 2. The inner wall of the light guide channel 76 is provided with a first isolation protection sleeve 9, and the inner wall of the light splitting channel 77 is provided with a second isolation protection sleeve 10, as shown in fig. 14 and 15.
In this embodiment, the ultraviolet light is split by the beam splitter 78 to ensure that the original intensity of the ultraviolet light of the detection combination control group is the same.
Claims (10)
1. The utility model provides an ultraviolet sterilizing equipment, includes ultraviolet fluorescent tube (1) that can send ultraviolet, with ultraviolet fluorescent tube (1) complex to carry out the chamber of disinfecting of the water that flows through its inside appearance chamber, its characterized in that: the device also comprises an organic matter detection sensor for detecting the organic matter content of the water, the organic matter detection sensor comprises a detection component which can be matched with the ultraviolet lamp tube (1) and can detect the organic matter content in the water, and the detection component comprises
The detection tube (2) can be penetrated by ultraviolet rays emitted by the ultraviolet lamp tube (1), and detected water can pass through the detection tube (2);
the detection group ultraviolet receiver (3) is used for detecting the intensity of ultraviolet rays emitted from the ultraviolet lamp tube (1) and penetrating through the detection tube (2);
the circuit board (4), the detection group ultraviolet receiver (3) is connected with the circuit board (4);
the contrast detection component comprises a contrast group ultraviolet receiver (5) which can detect the intensity of ultraviolet rays directly emitted from the ultraviolet lamp tube (1) or can detect the intensity of ultraviolet rays emitted from the ultraviolet lamp tube (1) and penetrating through a contrast tube (6), wherein the interior of the contrast tube (6) is vacuum or provided with air or pure water; the comparison group ultraviolet receiver (5) is also connected with the circuit board (4), and the circuit board (4) calculates the content of organic matters in water passing through the detection tube (2) according to the ultraviolet intensity received by the detection group ultraviolet receiver (3) and the ultraviolet intensity received by the comparison group ultraviolet receiver (5); the organic matter detection sensor further comprises a shell (7), an ultraviolet lamp tube accommodating hole allowing an ultraviolet lamp tube to penetrate through is formed in the shell (7), and the ultraviolet lamp tube (1) penetrates through the ultraviolet lamp tube accommodating hole; a detection tube accommodating cavity communicated with the ultraviolet lamp tube accommodating hole is also formed in the shell (7), and the detection tube (2) is arranged in the detection tube accommodating cavity; the detection group ultraviolet receiver (3) is arranged in the shell (7) and is opposite to the detection tube (2);
an isolation shading protective sleeve (8) is sleeved outside the ultraviolet lamp tube (1), and the ultraviolet lamp tube (1) is sleeved with the isolation shading protective sleeve (8) and then penetrates through the ultraviolet lamp tube accommodating hole; the isolation shading protective sleeve (8) is provided with a detection light transmitting hole (81); ultraviolet rays emitted by the ultraviolet lamp tube (1) pass through the detection light holes (81) and then penetrate through the detection tube (2) to reach the detection group ultraviolet receiver (3); the isolation shading protective sleeve (8) is also provided with a contrast light transmitting hole (82), and the contrast group ultraviolet receiver (5) is arranged in the shell (7) and is opposite to the contrast light transmitting hole (82), so that ultraviolet rays emitted by the ultraviolet lamp tube (1) directly reach the contrast group ultraviolet receiver (5) after passing through the contrast light transmitting hole (82) or reach the contrast group ultraviolet receiver (5) after penetrating through the contrast tube (6);
the detection method of the organic matter detection sensor comprises the following steps:
step (1), starting the ultraviolet lamp tube (1), recording an ultraviolet intensity value received by the ultraviolet receiver (5) of the comparison group by the circuit board (4), and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
step (2), preparing N parts of reference water samples with known organic matter content and different organic matter content, keeping the ultraviolet lamp tube (1) open, then sequentially passing the N parts of reference water samples through the detection tube (2), sequentially recording ultraviolet intensity values received by the ultraviolet receivers (3) of the detection group when the N parts of reference water samples flow through the detection tube (2) by the circuit board 4, and respectively recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value, wherein N is a natural number more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N ultraviolet intensity reference values obtained in the step (2);
and (4) keeping the ultraviolet lamp tube (1) open, enabling water to be detected to flow through the detection tube (2), recording an ultraviolet intensity value received by the ultraviolet receivers (3) of the detection group by the circuit board (4), recording the ultraviolet intensity value as an ultraviolet intensity detection value, recording an ultraviolet intensity value received by the ultraviolet receivers (5) of the comparison group, recording the ultraviolet intensity value as a temporary ultraviolet intensity reference value, dividing the temporary ultraviolet intensity reference value by the first ultraviolet intensity reference value to obtain an ultraviolet lamp tube intensity attenuation ratio, dividing the ultraviolet intensity detection value by the ultraviolet lamp tube intensity attenuation ratio to obtain an ultraviolet intensity lookup value, and then obtaining the content of organic matters in the water to be detected at the moment by querying the comparison table obtained in the step (3) by adopting the ultraviolet intensity lookup value.
2. The ultraviolet sterilizer according to claim 1, wherein: and the shell (7) is connected with a water inlet joint (71) and a water outlet joint (72) which are respectively communicated with the two ends of the detection pipe (2).
3. The ultraviolet sterilizer according to claim 2, wherein: and sealing rings (73) are arranged at the positions where the water inlet joint (71) and the water outlet joint (72) are connected with the two ends of the detection pipe (2).
4. The ultraviolet sterilizer according to claim 1, wherein: the circuit board (4) is fixed on the shell (7), a detection light channel (74) communicated with the sterilizing tube accommodating cavity is arranged in the shell (7), and the detection group ultraviolet receiver (3) is fixed on the circuit board (4) and then is positioned in the detection light channel (74).
5. The ultraviolet sterilizer according to claim 1, wherein: the detection light transmission hole (81) and the comparison light transmission hole (82) are arranged on the same side of the isolation shading protective sleeve (8); the shell (7) is provided with a comparison group ultraviolet receiver mounting hole which is opposite to the comparison light transmitting hole (82), and the comparison group ultraviolet receiver (5) is arranged in the comparison group ultraviolet receiver mounting hole.
6. The ultraviolet sterilizer according to claim 1, wherein: the detection light transmission holes (81) and the comparison light transmission holes (82) are symmetrically arranged at two opposite sides of the isolation shading protective sleeve (8);
the shell (7) is provided with a comparison group ultraviolet receiver mounting hole which is opposite to the comparison light transmitting hole (82), and the comparison group ultraviolet receiver (5) is arranged in the comparison group ultraviolet receiver mounting hole.
7. The ultraviolet sterilizer according to claim 1, wherein: detect light trap (81) with contrast light trap (82) set up in the different positions of the same circumference of isolation shading protective sheath (8), and with keep apart the contained angle that becomes non-180 degrees between the same circumference central point line of shading protective sheath (8), be equipped with in casing (7) with contrast light trap (82) intercommunication and just right contrast light passageway (75), contrast group ultraviolet receiver (5) set up in contrast light passageway (75).
8. The ultraviolet sterilization apparatus according to claim 1, 2, 3 or 4, wherein: the temperature sensor (11) is in contact with the ultraviolet lamp tube (1) and used for detecting the temperature of the ultraviolet lamp tube (1).
9. The ultraviolet sterilizer according to claim 1, wherein: the organic matter detection sensor is arranged on one side of the ultraviolet lamp tube (1), a glass sleeve (12) is sleeved outside the ultraviolet lamp tube (1), a metal shell (13) is sleeved outside the glass sleeve, and a space formed between the metal shell (13) and the glass sleeve (12) is a sterilization cavity; the metal shell (13) is provided with a water inlet and a water outlet; and the shell (7) of the organic matter detection sensor is connected with the end part of the metal shell (13).
10. The ultraviolet sterilizer according to claim 9, wherein: and a display screen (14) which is connected with a circuit board (4) of the organic matter detection sensor and used for displaying the content of the organic matters in the water flowing through the detection pipe (2) is further arranged on the metal shell (13) or the shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196249.8A CN107337253B (en) | 2017-03-29 | 2017-03-29 | Ultraviolet sterilization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196249.8A CN107337253B (en) | 2017-03-29 | 2017-03-29 | Ultraviolet sterilization device |
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| Publication Number | Publication Date |
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| CN107337253A CN107337253A (en) | 2017-11-10 |
| CN107337253B true CN107337253B (en) | 2020-01-14 |
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| CN201710196249.8A Active CN107337253B (en) | 2017-03-29 | 2017-03-29 | Ultraviolet sterilization device |
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| CN110282692A (en) * | 2019-06-28 | 2019-09-27 | 长春莱博帕特科技发展有限公司 | A kind of effective UV device |
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| US7990038B2 (en) * | 2005-01-07 | 2011-08-02 | Koninklijke Philips Electronics N.V. | Segmented dielectric barrier discharge lamp |
| CN102042963A (en) * | 2010-10-14 | 2011-05-04 | 长春理工大学 | Online detector for detecting total organic carbon (TOC) in sewage with ultraviolet spectrometry method |
| CN102318872B (en) * | 2011-08-25 | 2014-07-30 | 佛山柯维光电股份有限公司 | Light-emitting diode (LED) ultraviolet fluid disinfection method and device thereof |
| CN202869961U (en) * | 2012-08-21 | 2013-04-10 | 杭州希玛诺光电技术有限公司 | Mobile reference light path device for water quality analysis meter |
| CN103008287B (en) * | 2012-12-21 | 2015-12-09 | 江苏安华电气自动化有限公司 | A kind of multi-function washing machine |
| CN106348547B (en) * | 2016-11-08 | 2019-08-09 | 沈阳建筑大学 | A kind of print paper money wastewater treatment integrated technique system and method |
| CN207418333U (en) * | 2017-03-29 | 2018-05-29 | 宁波方太厨具有限公司 | A kind of ultraviolet sterilization apparatus |
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