CN107337238B - Water purifier - Google Patents
Water purifier Download PDFInfo
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- CN107337238B CN107337238B CN201710196276.5A CN201710196276A CN107337238B CN 107337238 B CN107337238 B CN 107337238B CN 201710196276 A CN201710196276 A CN 201710196276A CN 107337238 B CN107337238 B CN 107337238B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 155
- 238000001514 detection method Methods 0.000 claims abstract description 206
- 239000005416 organic matter Substances 0.000 claims abstract description 54
- 230000001681 protective effect Effects 0.000 claims description 39
- 238000002955 isolation Methods 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000001914 filtration Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012372 quality testing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000008213 purified water Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000126 substance 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/20—Total organic carbon [TOC]
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Medicinal Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a water purifier, which comprises a display module and a water quality detection module, wherein the display module can display the water quality state of raw water entering the water purifier or/and purified water produced after being filtered by a filter system of the water purifier, and the water quality detection module is connected with the display module and is used for detecting the water quality state, and the water purifier is characterized in that: the water quality detection module at least comprises an organic matter detection sensor for detecting the content of organic matters in water, wherein the organic matter detection sensor comprises a light source (1) capable of emitting ultraviolet rays, and a detection assembly which is matched with the light source (1) and can detect the content of the organic matters in the water, and the detection assembly comprises 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 the organic matter content in water can be detected and displayed in real time, and in addition, the organic matter detection sensor provided by the invention has low cost and small volume, and is suitable for various detection occasions.
Description
Technical Field
The present invention relates to a water purifier.
Background
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.
At present, the detection of the organic matter content mainly depends 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 the ultraviolet rays 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 contents 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.
Disclosure of Invention
The invention aims to solve the technical problem of providing a water purifier capable of displaying the content of organic matters in water in real time aiming at the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a water purifier, is including the display module that can show the water quality state of the water purification of getting into the inside raw water of water purifier or/and output after water purifier filtration system filters, and with the water quality testing module that is used for detecting the water quality state of the water purification of getting into the inside raw water of water purifier or/and output after water purifier filtration system filters of display module line, its characterized in that: the water quality testing module is at least including the organic matter detection sensor who is used for detecting aquatic organic matter content, wherein the organic matter detection sensor including can send ultraviolet light source, and with the light source complex can detect aquatic organic matter content's determine module, this determine module includes:
a detection tube which can be penetrated by ultraviolet rays emitted from the light source and through which detected water can pass;
a detection group ultraviolet receiver for detecting the intensity of the ultraviolet rays emitted from the light source and penetrating the detection tube;
the detection group ultraviolet receiver is connected with the circuit board, the circuit board is used for calculating the content of organic matters in water in the detection pipe according to the ultraviolet intensity received by the detection group ultraviolet receiver, and the circuit board is connected with the display module.
The organic matter detection sensor provided by the above can effectively detect the content of organic matters in water, has few components and a simple structure, and can be made into detection components with smaller volume and lower cost.
As an improvement, the organic matter detection sensor provided by the invention further comprises a shell, wherein the detection assembly is arranged in the shell: a light source accommodating cavity or a light source accommodating hole allowing a light source to pass through is formed in the shell, and the light source is arranged in the light source accommodating cavity or arranged in the light source accommodating hole in a penetrating manner; the shell is also internally provided with a detection tube accommodating cavity communicated with the light source accommodating cavity or a light source accommodating hole allowing the light source to pass through, and the detection tube is arranged in the detection tube accommodating cavity; the detection group ultraviolet receiver is arranged in the shell and is opposite to the detection tube.
The light source is sleeved with the isolation shading protective sleeve and then arranged in a light source accommodating cavity of the shell or penetrated in a light source accommodating hole; the isolation shading protective sleeve is provided with a detection light transmission hole; the ultraviolet rays emitted by the light source penetrate through the detection tube to reach the detection group ultraviolet ray receiver after passing through the detection light transmitting hole. The isolation shading protective sleeve is used for isolating the light source and preventing the shell from aging caused by the irradiation of ultraviolet rays emitted by the light source. Through set up at the isolation shading protective sheath and detect the light trap, can make the light emission angle between light source and the ultraviolet receiver of detection group less to reduce the uncertainty of light because refraction and reflection cause in the data of detection in the data transfer 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.
The light source capable of emitting ultraviolet rays generally adopts an ultraviolet lamp, and the intensity of the ultraviolet rays emitted by the ultraviolet lamp 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 proposal 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 light source, 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 pipe 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 light source directly reach the contrast group ultraviolet receiver after passing through the contrast light hole. Through set up the contrast light trap at isolation shading protective sheath, can make the light emission angle between light source and the ultraviolet receiver of contrast group less to reduce the light because refraction and the uncertainty of the detected data that the reflection caused in the data send process.
The contrast assembly and the detection assembly can be arranged on the same side of the light source, and the detection light transmission hole and the contrast light transmission hole are positioned on 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 light source accommodating cavity, and the detection light transmission hole and the contrast light transmission 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 subassembly can also be located the different sides of light source holding chamber outsidely with the determine module, detect the light trap with the contrast light trap sets up at the same different positions of circumference of isolation shading protective sheath, and with keep apart the contained angle of 180 degrees between the same circumference central point line of shading protective sheath, be equipped with in the casing with contrast light trap intercommunication and just right contrast light passageway, contrast group ultraviolet receiver sets up in contrast light passageway.
In another preferred embodiment, the control module comprises:
a control tube which can be penetrated by the ultraviolet emitted by the light source, wherein the interior of the control tube is vacuumized or provided with air or purified water;
a control group ultraviolet receiver for detecting the intensity of the ultraviolet rays emitted from the light source and having passed through 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 shading protective sleeve can be provided with a contrast light transmitting hole, and ultraviolet rays emitted by the light source penetrate through the contrast tube to reach the contrast group ultraviolet ray receiver after passing through the contrast light transmitting hole.
At this time, the comparison component and the detection component can be arranged on the same side of the light source, and the detection light transmission hole and the comparison light transmission 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 the ultraviolet emitted by the light source passes through the contrast light hole and then penetrates 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 light source accommodating cavity, and the detection light transmission hole and the contrast light transmission 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 arranged 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 the ultraviolet emitted by the light source passes through the contrast light hole and then penetrates 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 light source 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, 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 transmission 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 the ultraviolet emitted by the light source passes through the contrast light hole and then penetrates through the contrast tube to reach the contrast group ultraviolet receiver.
When the isolation shading 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 which is used 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 at 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 is opposite to the contrast tube, so that ultraviolet rays emitted by the light source pass through the detection light transmitting hole 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 shading protective sleeve.
And a second isolating shading protective sleeve is arranged on the inner wall of the light splitting channel.
The invention also includes a temperature sensor in contact with the light source for detecting the temperature of the light source; when the content of organic matters in the circuit board water is increased, the main interference factor is the change of a light source, and the change of the light source is mainly due to the temperature, and the temperature of the light source can be gradually increased along with the prolonging of the service time of the light source; because the ultraviolet lamp has the characteristics that the intensity of ultraviolet rays is increased along with the increase of temperature, in order to improve the detection accuracy, a temperature sensor which is in contact with the light source and is used for detecting the temperature of the light source is arranged in the shell, and then the temperature calculation result is used for compensation, so that the detection accuracy can be effectively improved.
And the water quality online detection unit further comprises a turbidity sensor and a conductivity sensor.
And the water quality on-line detection system further comprises an alarm unit connected with the controller unit.
The water quality on-line detection system provided by the invention further comprises a water quality purification unit arranged on a pipeline behind the water quality on-line detection unit.
Compared with the prior art, the invention has the advantages that: the water quality detection unit connected with the display module is arranged, and the organic matter detection sensor is arranged in the water quality detection unit, so that the water purifier provided by the invention can detect and display the content of organic matters in water in real time.
Drawings
FIG. 1 is a block diagram of a water circuit of a water purifier according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a first embodiment of an organic detection sensor according to an embodiment of the present invention;
FIG. 3 is a perspective cross-sectional view of a first embodiment of an organic matter detection sensor in an embodiment of the invention;
FIG. 4 is an exploded perspective view of a first embodiment of an organic detection sensor in accordance with embodiments of the present invention;
FIG. 5 is an exploded perspective view of an alternative perspective of the organic detection sensor in accordance with an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a second embodiment of an organic detection sensor in accordance with an embodiment of the present invention;
FIG. 7 is a cross-sectional view of a second embodiment of an organic matter detecting sensor in an embodiment of the present invention;
fig. 8 is a sectional view of a third embodiment of an organic matter detecting sensor in the embodiment of the present invention;
fig. 9 is a sectional view of a fourth embodiment of an organic matter detecting sensor in the embodiment of the present invention;
fig. 10 is a sectional view of a fifth mode of an organic matter detecting sensor in the embodiment of the present invention;
FIG. 11 is a schematic perspective view of a sixth embodiment of an organic detection sensor in accordance with the present invention;
FIG. 12 is a perspective cross-sectional view of a sixth alternative organic matter detecting sensor in accordance with an embodiment of the present invention;
FIG. 13 is a schematic perspective view of a seventh embodiment of an organic substance detection sensor in an embodiment of the present invention;
fig. 14 is a perspective sectional view of a seventh mode of the organic matter detecting sensor in the embodiment of the present invention;
fig. 15 is a perspective cross-sectional view of an eighth 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 water purifier shown in fig. 1 comprises a display module 101 capable of displaying the water quality states of raw water entering the water purifier and purified water produced by the water purifier, a first water quality detection module 102 connected with the display module and used for detecting the water quality state of the raw water, and a second water quality detection module 103 used for detecting the water quality of the purified water. After water enters the water purifier, the water quality of raw water is firstly detected through the first water quality detection module 102, the water is filtered by the filtering system 104 in the water purifier to obtain purified water, at the moment, the purified water quality is detected through the second water quality detection module 103, and finally, the purified water flows out through the purified water faucet of the water purifier.
The first water quality detection module 102 and the second water quality detection module 103 have the same structure, and each comprise an organic matter detection sensor, a TSD sensor, a turbidity sensor and a conductivity sensor for detecting the organic matter content of water quality.
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. 2 to 5, the device comprises a light source 1 capable of emitting ultraviolet rays, a detection assembly which is matched with the light source 1 and is capable of detecting the content of organic matters in water, and a comparison assembly which is matched with the detection assembly for use.
Wherein the detection assembly comprises:
a detecting tube 2 which can be penetrated by the ultraviolet rays emitted from the light source 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 light source 1 and having passed through the detection tube 2;
the comparison component comprises:
a contrast tube 6 which can be penetrated by the ultraviolet rays emitted by the light source 1, wherein the contrast 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 light source 1 and having passed through 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, a light source accommodating hole allowing a light source to pass through is formed in the middle of the shell 7, and the light source 1 penetrates through the light source accommodating hole; a detection tube accommodating cavity communicated with the light source 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 light source 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 opposite to the control tube 6.
An isolation shading protective sleeve 8 is sleeved outside the light source 1, and the light source 1 is sleeved with the isolation shading protective sleeve 8 and then penetrates through a light source accommodating hole of the shell 7; the isolation shading protective sleeve 8 is provided with a detection light transmission hole 81; the ultraviolet rays emitted by the light source 1 pass through the detection light transmitting hole 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; the ultraviolet rays emitted from the light source 1 pass through the control light transmitting hole 82 and then penetrate through the control tube 6 to reach the control 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 may be fixed on the second casing 7b, in this embodiment, the circuit board 4 is fixed on the first casing 7a, the control group ultraviolet receiver 5 is installed on a side plate, the side plate is fixed on the second casing 7b, and an output end of the control 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 component symmetry set up the double-phase offside in light source 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 picked up by the detection group and the ultraviolet rays picked up by the comparison group come from the same circumferential position of the light source 1, so the original light intensity difference of the ultraviolet rays picked up by the two groups is very small; the disadvantages are that: however, if the light source is radially offset after installation, a large deviation of the detection data obtained by the comparison assembly and the detection assembly may result.
The detection method of the organic matter detection sensor in the embodiment includes the following steps:
step (1), vacuumizing a comparison tube 6, or keeping the comparison tube 6 filled with air, or filling purified water into the comparison tube 6, starting a light source 1, recording an ultraviolet intensity value received by an ultraviolet receiver 5 of the comparison 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 control water samples with known organic matter content and different organic matter content, keeping the light source 1 open, then respectively and sequentially passing the N parts of control water samples through the control tube 6, sequentially recording ultraviolet intensity values received by the control group ultraviolet receiver 5 when the N parts of control water samples flow through the control tube 6 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, an 8230, an N +1 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);
step (4), keeping the light source 1 on, vacuumizing the comparison tube 6, or keeping the comparison tube 6 filled with air, or filling pure water into the comparison tube 6; the method comprises the steps that water to be detected flows through a detection tube 2, a circuit board 4 records an ultraviolet intensity value received by an ultraviolet receiver 3 of a detection group at this time, the ultraviolet intensity value is recorded as an ultraviolet intensity detection value, an ultraviolet intensity value received by an ultraviolet receiver 5 of a comparison group is recorded at the same time, the ultraviolet intensity value is recorded as a temporary ultraviolet intensity reference value, the temporary ultraviolet intensity reference value is divided by a first ultraviolet intensity reference value to obtain a light source intensity attenuation proportion, the ultraviolet intensity detection value is multiplied by the light source intensity attenuation proportion to obtain an ultraviolet intensity search value, and then the ultraviolet intensity search value is adopted to obtain the content of organic matters in the water to be detected at this time by inquiring a comparison table obtained in the step 3.
In the above detection method, the main interference factor is the variation of the light source, and the variation of the light source is mainly due to the temperature, and the temperature of the light source gradually increases as the service time of the light source increases; 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 light source 1 in contact with said light source 1 in the body 7; in the steps (1) and (2), the light source 1 is kept turned on, then the temperature of the light source 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, \8230 \8230anda plurality of N +1 ultraviolet intensity reference values of the light source (1) at different temperature values 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 light source at different temperature values; and finally, in the step (4), the light source (1) is kept on, the temperature of the light source (1) is detected in real time through the temperature sensor (11), and the organic matter content in the water to be detected at the moment is obtained through table lookup according to the current temperature value of the light source (1) and the current ultraviolet intensity detection value.
A second embodiment of the organic matter detection sensor:
referring to fig. 6 and 7, in contrast to the first solution, only the detection assembly is included in the housing 7, and no control assembly is 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 a light source 1, recording the 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 control water samples with known organic matter content and different organic matter content, keeping the light source 1 open, then respectively and sequentially passing the N parts of control water samples through the detection tube 2, and sequentially recording ultraviolet intensity values received by the detection group ultraviolet receivers 3 when the N parts of control 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, \82303030, an N +1 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 +1 parts of ultraviolet intensity reference values obtained in the step (1) and the step (2);
and (4) keeping the light source 1 on, 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 light source 1, and the detection light transmission hole 81 and the comparison light transmission hole 82 are positioned on the same side of the isolation shading protective sleeve 8; the internal structure thereof is shown in fig. 8.
In the present embodiment, the advantage of the comparison component and the detection component being on the same side is that when the position of the ultraviolet lamp is shifted radially, the deviation of the ultraviolet intensity captured by the detection component and the comparison component is less; 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 detecting 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. 9. The ultraviolet rays emitted from the light source 1 directly reach the control group ultraviolet receiver 5 through the control light transmission hole 82 along the control light path 75.
The detection method of the organic matter detection sensor in the embodiment includes the following steps:
step (1), starting the light source 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 control water samples with known organic matter content and different organic matter content, keeping the light source 1 open, then respectively and sequentially passing the N parts of control water samples through the detection tube 2, and sequentially recording ultraviolet intensity values received by the detection group ultraviolet receivers 3 when the N parts of control 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, \82303030, an N +1 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 light source 1 on, 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, recording the ultraviolet intensity value received by the ultraviolet receiver 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 a light source intensity attenuation ratio, multiplying the ultraviolet intensity detection value by the light source intensity attenuation ratio to obtain an ultraviolet intensity search value, and then obtaining the content of the organic matters in the water to be detected by inquiring the comparison table obtained in the step (3) by adopting the ultraviolet intensity search value.
The fifth embodiment of the organic matter detection sensor:
different from the fourth scheme, the comparison module and the detection module are arranged on the same side of the light source, the external configuration of the shell is the same as that of the second scheme, and the internal structure is shown in figure 10.
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:
what is different from the fourth scheme is that the casing 7 is an integral piece, the comparison component and the detection component are located at different sides outside the light source accommodating cavity, the detection light transmission holes 81 and the comparison light transmission holes 82 are arranged at different positions of the same outer circumference of the isolation and shading protective sleeve 8, and form an included angle of not 180 degrees with 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 refers to fig. 11, and the internal structure of the casing refers to fig. 12.
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 is opposite to the contrast tube 6, so that ultraviolet rays emitted by the light source 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 entering the light splitting channel 77 through the contrast tube 2. The inner wall of the light guide channel 76 is provided with a first isolating and shading protective sleeve 9, and the inner wall of the light splitting channel 77 is provided with a second isolating and shading protective sleeve 10, as shown in fig. 13 and 14.
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.
The eighth aspect of the organic matter detecting sensor:
different from the fourth solution, a light source accommodating cavity is formed in the housing 7, the light source 1 is a small ultraviolet lamp or an LED ultraviolet lamp, and the light source 1 is integrally disposed in the light source accommodating cavity, as shown in fig. 15.
Claims (9)
1. The utility model provides a water purifier, is including the display module that can show the water quality state of the water purification of getting into the inside raw water of water purifier or/and output after water purifier filtration system filters, and with the water quality testing module that is used for detecting the water quality state of the water purification of getting into the inside raw water of water purifier or/and output after water purifier filtration system filters of display module line, its characterized in that: the water quality detection module at least comprises an organic matter detection sensor for detecting the content of organic matters in water, wherein the organic matter detection sensor comprises a light source (1) capable of emitting ultraviolet rays and a detection assembly which is matched with the light source (1) and can detect the content of the organic matters in the water, and the detection assembly comprises
A detection tube (2) which can be penetrated by ultraviolet rays emitted from the light source (1), and through which detection water can pass (2);
a detection group ultraviolet receiver (3) for detecting the intensity of the ultraviolet rays emitted from the light source (1) and penetrating the detection tube (2);
the detection group ultraviolet receiver (3) is connected with the circuit board (4), the circuit board (4) is used for calculating the content of organic matters in water in the detection pipe (2) according to the ultraviolet intensity received by the detection group ultraviolet receiver (3), and the circuit board (4) is connected with the display module;
the organic matter detection sensor also comprises a shell (7), a light source accommodating cavity or a light source accommodating hole allowing a light source to pass through is arranged in the shell (7), and the light source (1) is arranged in the light source accommodating cavity or arranged in the light source accommodating hole in a penetrating mode; a detection tube accommodating cavity communicated with the light source accommodating cavity or a light source accommodating hole allowing a light source to pass through is further 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 light source (1), and the light source (1) is arranged in a light source accommodating cavity of the shell (7) or penetrates through a light source accommodating hole after being sleeved with the isolation shading protective sleeve (8); the isolation shading protective sleeve (8) is provided with a detection light hole (81); ultraviolet rays emitted by the light source (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);
a water inlet joint (71) and a water outlet joint (72) which are respectively communicated with the two ends of the detection pipe (2) are connected to the shell (7);
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);
the circuit board (4) is fixed on the shell (7), a detection light channel (74) communicated with the detection 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);
the organic matter detection sensor further comprises a comparison component, and the comparison component comprises:
a contrast tube (6) which can be penetrated by the ultraviolet rays emitted by the light source (1), wherein the interior of the contrast tube (6) is vacuum or provided with air or pure water;
a control group ultraviolet receiver (5) for detecting the intensity of the ultraviolet rays emitted from the light source (1) and having passed through the control tube (6);
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 isolation shading protective sleeve (8) is provided with a contrast light hole (82), and ultraviolet rays emitted by the light source (1) penetrate through the contrast tube (6) to reach the contrast group ultraviolet receiver (5) after passing through the contrast light hole (82).
2. The water purifier according to claim 1, characterized in that: the contrast assembly and the detection assembly are arranged on the same side of the light source (1), and the detection light transmission hole (81) and the contrast light transmission hole (82) are positioned on the same side of the isolation shading protective sleeve (8); a contrast tube accommodating cavity communicated with the contrast light transmitting hole (82) is formed in the shell (7), 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 is opposite to the contrast tube (6), so that the ultraviolet emitted by the light source (1) passes through the contrast light transmitting hole (82) and then penetrates through the contrast tube (6) to reach the contrast group ultraviolet receiver (5).
3. The water purifier according to claim 1, characterized in that: the contrast assembly and the detection assembly are symmetrically arranged on two opposite sides of the light source accommodating cavity, and the detection light transmission hole (81) and the contrast light transmission hole (82) are symmetrically arranged on two opposite sides of the isolation shading protective sleeve (8); a contrast tube accommodating cavity communicated with the contrast light transmitting hole (82) is formed in the shell (7), 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 is opposite to the contrast tube (6), so that the ultraviolet emitted by the light source (1) passes through the contrast light hole (82) and then penetrates through the contrast tube (6) to reach the contrast group ultraviolet receiver (5).
4. The water purifier according to claim 1, characterized in that: the contrast assembly and the detection assembly are positioned at different sides outside the light source accommodating cavity, the detection light transmission hole (81) and the contrast light transmission hole (82) are arranged at different positions of the same circumference of the isolation shading protective sleeve (8), and an included angle of 180 degrees is formed between the detection light transmission hole and the connection line of the central point of the same circumference of the isolation shading protective sleeve (8), a contrast tube accommodating cavity communicated with the contrast light transmission hole (82) is arranged in the shell (7), 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 is opposite to the contrast tube (6), so that the ultraviolet emitted by the light source (1) passes through the contrast light transmitting hole (82) and then penetrates through the contrast tube (6) to reach the contrast group ultraviolet receiver (5).
5. The water purifier according to claim 1, wherein: a light guide channel (76) which is opposite to and communicated with the detection light transmitting hole (81), a light splitting channel (77) with the middle part vertical to the light guide channel (76) and a spectroscope (78) which is used for uniformly dispersing ultraviolet rays in the light guide channel (76) to two sides of the light splitting channel (77) are arranged in the shell (7), and 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 comparison group ultraviolet receiver (5) is arranged in the shell (7) and is opposite to the comparison tube (6), so that ultraviolet rays emitted by the light source (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 comparison tube (6) to reach the comparison group ultraviolet receiver (5).
6. The water purifier according to claim 5, characterized in that: and a first isolation shading protective sleeve (9) is arranged on the inner wall of the light guide channel (76).
7. The water purifier according to claim 6, characterized in that: and a second isolation shading protective sleeve (10) is arranged on the inner wall of the light splitting channel (77).
8. The water purifier according to claim 1, 2, 3, 4 or 5, wherein: further comprising a temperature sensor (11) in contact with the light source (1) for detecting the temperature of the light source (1).
9. The water purifier according to claim 1, characterized in that: the water quality detection module further comprises a TSD sensor or/and a turbidity sensor or/and a conductivity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196276.5A CN107337238B (en) | 2017-03-29 | 2017-03-29 | Water purifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196276.5A CN107337238B (en) | 2017-03-29 | 2017-03-29 | Water purifier |
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| Publication Number | Publication Date |
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| CN107337238A CN107337238A (en) | 2017-11-10 |
| CN107337238B true CN107337238B (en) | 2022-10-21 |
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| CN201710196276.5A Active CN107337238B (en) | 2017-03-29 | 2017-03-29 | Water purifier |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55124069A (en) * | 1979-03-20 | 1980-09-24 | Fuyo Kaiyo Kaihatsu Kk | Measuring method of concentration of suspended matter in water and organic index |
| KR20060034663A (en) * | 2006-03-24 | 2006-04-24 | (주)해동정수 | Organic analysis apparatus and method for pure/ultra pure water treatment system |
| 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 |
| CN104198391A (en) * | 2014-09-26 | 2014-12-10 | 南京大学 | Ultraviolet fluorescence double-signal water quality monitoring device taking LED (light emitting diode) as light source and application method of device |
-
2017
- 2017-03-29 CN CN201710196276.5A patent/CN107337238B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55124069A (en) * | 1979-03-20 | 1980-09-24 | Fuyo Kaiyo Kaihatsu Kk | Measuring method of concentration of suspended matter in water and organic index |
| KR20060034663A (en) * | 2006-03-24 | 2006-04-24 | (주)해동정수 | Organic analysis apparatus and method for pure/ultra pure water treatment system |
| 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 |
| CN104198391A (en) * | 2014-09-26 | 2014-12-10 | 南京大学 | Ultraviolet fluorescence double-signal water quality monitoring device taking LED (light emitting diode) as light source and application method of device |
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| CN107337238A (en) | 2017-11-10 |
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