CN218567204U

CN218567204U - COD sensor

Info

Publication number: CN218567204U
Application number: CN202222406290.2U
Authority: CN
Inventors: 龚伟光
Original assignee: Jiaxing Daoyi Sensing Technology Co ltd
Current assignee: Jiaxing Daoyi Sensing Technology Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-03-03
Anticipated expiration: 2032-09-09

Abstract

The utility model provides a COD sensor, including the sensor body, be equipped with on the sensor body and detect the groove, this internal position of sensor is detected the groove both sides and is equipped with light-emitting component and determine module respectively, it is equipped with the light passageway to detect the corresponding light-emitting component in groove both sides and determine module department, light-emitting component department is equipped with Y shape optic fibre, the light passageway and the determine module of light-emitting component department are connected respectively to Y shape optic fibre branching both ends. The utility model discloses following beneficial effect has: through Y shape optic fibre cooperation light-emitting component and determine module, can obtain the data of light decay simultaneously, and then solved the light source of current COD sensor and appear the light decay back, can lead to the technical problem that detection accuracy descends.

Description

COD sensor

Technical Field

The utility model relates to a sensor technical field especially relates to a COD sensor.

Background

COD sensor commonly used in the market detects for the mode that adopts the ultraviolet light at present, and the concrete principle is: the concentration of organic matter is determined by the absorption of a water sample to monochromatic light, and the relationship between the absorbance of the solution to specific wavelength and the COD value, namely Lambert beer law, is established.

But because light receives the reflection of aquatic particulate matter, and then leads to COD sensor's measuring value inaccurate, consequently can be used for detecting turbidity through setting up a set of light source and light receiver more usually, and then carry out turbidity compensation to the measured value of organic matter material concentration.

The aforesaid is in COD sensor in-service use, and the light decay appears in the light source of COD sensor along with the loss of time, and the light that the light source sent is not enough behind the light decay, can lead to the detection accuracy to descend.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a COD sensor, its light source of having solved current COD sensor appears the light decay back, can lead to the technical problem that detection accuracy descends.

According to the utility model discloses a COD sensor of record, including the sensor body, be equipped with on the sensor body and detect the groove, this internal detection groove both sides that lie in of sensor are equipped with light emitting component and determine module respectively, it corresponds light emitting component and determine module department and is equipped with light channel to detect the groove both sides, light emitting component department is equipped with Y shape optic fibre, light channel and determine module of light emitting component department are connected respectively to Y shape optic fibre branching both ends.

The technical principle of the utility model is that: the light source of light-emitting component department is divided into two through Y shape optic fibre, and one of them is used for normally detecting through the light passageway, and another direct connection is located the detection module, judges the numerical value of light decay degree through the light of the light-emitting component of direct connection detection module department, compensates the detected value of COD sensor with the numerical value of this light decay degree.

Compared with the prior art, the utility model discloses following beneficial effect has: through Y shape optic fibre cooperation light-emitting component and determine module, can obtain the data of light decay simultaneously, and then solved the light source of current COD sensor and appear the light decay back, can lead to the technical problem that detection accuracy descends.

Further, light-emitting component includes the luminescent circuit board and sets up COD detection light source and turbidity compensation light source on the luminescent circuit board, detection component includes the detection circuitry board and sets up COD optical receiver and turbidity optical receiver on the detection circuitry board, COD optical receiver receives the light of COD detection light source through two light channels, turbidity optical receiver receives the light of turbidity compensation light source through two light channels.

Furthermore, the detection circuit board is also provided with a light attenuation light receiver, and the light attenuation light receiver is connected with one end of two branched ends of the Y-shaped optical fiber.

Furthermore, the number of the light attenuation light receivers is one, the number of the Y-shaped optical fibers is one, and the public end of each Y-shaped optical fiber is connected with a COD detection light source or a turbidity compensation light source.

Furthermore, the number of the light attenuation light receivers is two, the number of the Y-shaped optical fibers is two, the common end of the two Y-shaped optical fibers is respectively connected with the COD detection light source and the turbidity compensation light source, and one end of the two branched ends of the two Y-shaped optical fibers is respectively connected with the two light attenuation light receivers.

Further, be equipped with the installation piece in the light passageway, be equipped with COD light channel and turbidity light channel on the installation piece, COD light channel is adjusted well COD and is detected light source and COD light receiver, turbidity light channel is adjusted turbidity compensation light source and turbidity light receiver well.

Furthermore, a flange is arranged on one side, close to the detection groove, of the light channel, and a lens is arranged at the flange in a sealing mode.

Further, this internal motor that is equipped with of sensor, it is equipped with the cleaning brush to detect the inslot, the cleaning brush rotates with the motor to be connected, the motor rotates and is connected with the response piece, the response piece both ends are equipped with the position sensor.

Furthermore, a magnet is arranged in the sensing block, and the position sensor is a Hall sensor.

Drawings

Fig. 1 is a sectional view of a COD sensor according to embodiment 1 of the present invention.

Fig. 2 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a partially enlarged view of a portion B of fig. 1.

Fig. 4 is a partially enlarged view of a portion C of fig. 2.

Fig. 5 is a schematic structural diagram of a sensor body according to embodiment 2 of the present invention.

In the above drawings: 100. a sensor body; 110. a detection tank; 111. a cleaning brush; 120. a light path; 121. flanging; 122. a lens; 123. a seal ring; 130. a Y-shaped optical fiber; 131. a common terminal; 132. two ends of the fork are branched; 140. mounting blocks; 141. a COD optical channel; 142. a turbidity light channel; 150. a motor; 151. a drive shaft; 160. an induction block; 161. a magnet; 200. a light emitting assembly; 210. a light emitting circuit board; 220. a COD detection light source; 230. a turbidity compensating light source; 300. a detection component; 310. detecting the circuit board; 320. a COD light receiver; 330. a turbidity light receiver; 340. a light attenuating light receiver; 350. a position sensor.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

The COD sensor shown in fig. 1-2 comprises a sensor body 100, wherein the sensor body 100 is provided with a detection groove 110 for detecting the passing of a water sample, the sensor body 100 is provided with a light emitting component 200 and a detection component 300 at two sides of the detection groove 110, the two sides of the detection groove 110 are provided with light channels 120 corresponding to the light emitting component 200 and the detection component 300, i.e. the light of the light emitting component 200 can irradiate the water sample to be detected, and the light can be received by the detection component 300 through the water sample to be detected, the light emitting component 200 is provided with a Y-shaped optical fiber 130, two ends 132 of the fork of the Y-shaped optical fiber 130 are respectively connected with the light channels 120 and the detection component 300 at the light emitting component 200, one end is used for normal detection, and the other end is used for providing reference light for determining the light attenuation value.

As shown in fig. 3, the light emitting assembly 200 includes a light emitting circuit board 210, and a COD detecting light source 220 and a turbidity compensating light source 230 disposed on the light emitting circuit board 210, the detecting assembly 300 includes a detecting circuit board, and a COD light receiver 320 and a turbidity light receiver 330 disposed on the detecting circuit board 310, the specific COD light receiver 320 receives light from the COD detecting light source 220 through two light channels 120, i.e., measures concentration values of organic substances in the water sample, and the turbidity light receiver 330 receives light from the turbidity compensating light source 230 through two light channels 120, i.e., measures turbidity of the water sample, for compensating the concentration values of the organic substances.

As shown in fig. 3-4, the detection circuit board 310 is further provided with a light attenuation light receiver 340, and the light attenuation light receiver 340 is connected to one of the two branched ends 132 of the Y-shaped optical fiber 130, that is, the light is guided to irradiate the light attenuation light receiver 340 through the Y-shaped optical fiber 130, that is, a light attenuation value is provided, so as to compensate for the concentration value of the organic substance.

Specifically, there is one light attenuation light receiver 340, one Y-shaped optical fiber 130, and the common end 131 of the Y-shaped optical fiber 130 is connected to the COD detecting light source 220 or the turbidity compensating light source 230, that is, only one light attenuation value of the COD detecting light source 220 or the turbidity compensating light source 230 is detected.

As shown in fig. 3-4, the light channel 120 is provided with a mounting block 140, the mounting block 140 is provided with a COD light channel 141 and a turbidity light channel 142, the COD light channel 141 aligns with the COD detecting light source 220 and the COD light receiver 320, and the turbidity light channel 142 aligns with the turbidity compensating light source 230 and the turbidity light receiver 330, and plays a guiding role, and can be used to connect the other end of the two branched ends 132 of the Y-shaped optical fiber 130, so that the Y-shaped optical fiber 130 can guide the COD detecting light source 220 or the turbidity compensating light source 230 to align with the COD light receiver 320 or the turbidity light receiver 330.

As shown in fig. 3-4, a flange 121 is integrally formed on one side of the light channel 120 close to the detection slot 110, a lens 122 is hermetically disposed at the flange 121, and a sealing ring 123 is disposed between the flange 121 and the lens 122.

As shown in fig. 1 to 4, a motor 150 is disposed in the sensor body 100, a cleaning brush 111 is disposed in the detection groove 110, the cleaning brush 111 is rotatably connected to the motor 150 through a transmission shaft 151, an induction block 160 is mounted on the transmission shaft 151 of the motor 150 by a key, position sensors 350 are disposed at two ends of the induction block 160, the specific position sensor 350 is a hall sensor, the position sensor 350 is mounted on the detection circuit board 310, a magnet 161 is disposed in the induction block 160, the magnet 161 is matched with the hall sensor to realize the rotation, the rotation of the motor 150 is limited, and further the cleaning range of the cleaning brush 111 is controlled.

Example 2

As shown in fig. 4 to 5, the present embodiment is different from embodiment 1 in that: the number of the light attenuation light receivers 340 is two, the number of the Y-shaped optical fibers 130 is two, the common end 131 of the two Y-shaped optical fibers 130 is respectively connected with the COD detection light source 220 and the turbidity compensation light source 230, and one end of the two bifurcated ends 132 of the two Y-shaped optical fibers 130 is respectively connected with the two light attenuation light receivers 340, so that the light attenuation values of the COD detection light source 220 and the turbidity compensation light source 230 can be simultaneously detected.

The light attenuation light receiver 340, the COD light receiver 320 and the turbidity light receiver 330 may be TSL257 type light receivers.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A COD sensor, characterized in that: the sensor comprises a sensor body, a detection groove is formed in the sensor body, a light-emitting component and a detection component are arranged on two sides of the detection groove in the sensor body respectively, light channels are arranged on two sides of the detection groove corresponding to the light-emitting component and the detection component, Y-shaped optical fibers are arranged on the light-emitting component, and the two ends of the fork of each Y-shaped optical fiber are connected with the light channels and the detection component of the light-emitting component respectively.

2. The COD sensor according to claim 1, wherein: light-emitting component includes the luminescent circuit board and sets up COD detection light source and turbidity compensation light source on the luminescent circuit board, detection component is in including detection circuit board and setting COD light receiver and turbidity light receiver on the detection circuit board, COD light receiver receives the light of COD detection light source through two light channels, turbidity light receiver receives the light of turbidity compensation light source through two light channels.

3. The COD sensor according to claim 2, wherein: and the detection circuit board is also provided with a light attenuation light receiver which is connected with one end of two ends of the Y-shaped optical fiber fork.

4. A COD sensor according to claim 3, characterised in that: the optical attenuation light receiver is one, the Y-shaped optical fiber is one, and the common end of the Y-shaped optical fiber is connected with a COD detection light source or a turbidity compensation light source.

5. The COD sensor according to claim 3, wherein: the two light attenuation light receivers are provided, the two Y-shaped optical fibers are provided, the common ends of the two Y-shaped optical fibers are respectively connected with the COD detection light source and the turbidity compensation light source, and one end of the two branched ends of the two Y-shaped optical fibers is respectively connected with the two light attenuation light receivers.

6. The COD sensor according to claim 2, wherein: the light channel is internally provided with an installation block, the installation block is provided with a COD optical channel and a turbidity optical channel, the COD optical channel is aligned with a COD detection light source and a COD optical receiver, and the turbidity optical channel is aligned with a turbidity compensation light source and a turbidity optical receiver.

7. The COD sensor according to claim 2, wherein: one side of the light channel, which is close to the detection groove, is provided with a flanging, and the flanging is hermetically provided with a lens.

8. The COD sensor according to claim 2, wherein: the sensor is characterized in that a motor is arranged in the sensor body, a cleaning brush is arranged in the detection groove and is rotatably connected with the motor, the motor is rotatably connected with an induction block, and position inductors are arranged at two ends of the induction block.

9. The COD sensor according to claim 8, wherein: a magnet is arranged in the sensing block, and the position sensor is a Hall sensor.