CN216051354U

CN216051354U - Grating light-splitting type multinomial index detector for online or real-time detection of water quality

Info

Publication number: CN216051354U
Application number: CN202122353473.8U
Authority: CN
Inventors: 夏洪海; 程光远; 方卫龙
Original assignee: Suzhou Leiboya Apparatus Co ltd
Current assignee: Suzhou Leiboya Apparatus Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-15
Anticipated expiration: 2031-09-27

Abstract

The utility model relates to a grating light-splitting type multinomial index detector for online or real-time detection of water quality, which can be placed in a monitored liquid and comprises a detector body, a light beam emitting unit and a light beam analyzing unit. The utility model analyzes various parameter indexes of water quality on line or in real time by splitting the detection light beam to the linear array detector on the premise of not needing manual sampling, has the advantages of high response speed, strong anti-interference capability, compact structure, simple and convenient maintenance, high detection result accuracy and higher waterproof performance, and can work underwater for a long time.

Description

Grating light-splitting type multinomial index detector for online or real-time detection of water quality

Technical Field

The utility model belongs to the technical field of online or real-time water quality detection, and particularly relates to a grating light-splitting type multi-index detector for online or real-time water quality detection.

Background

With the development of economy, environmental protection is also receiving more and more attention, especially the case that the water body is polluted is more and more. At present, the environmental awareness is enhanced, various treatment equipment is continuously put into the first front line, and meanwhile, it is important to timely and accurately feed back water body index parameters, so that the development of treatment work can be effectively guided.

However, the traditional water quality index parameters are sampled manually on site or some online water quality sensors existing in the market are adopted, but the two implementation modes have obvious defects:

1) the manual sampling obviously has no timeliness, and the sample is unlikely to deteriorate in the collection and transportation processes, so that an accurate detection result is difficult to obtain;

2) the water quality sensors are generally single performance indexes, if multiple performance indexes are required to be detected simultaneously, only a plurality of water quality sensors can be adopted, data are collected by the special transmitter, and the whole system is slightly complex.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a novel grating light-splitting type multinomial index detector for online or real-time detection of water quality.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a grating light-splitting type polynomial index detector for online or real-time detection of water quality can be placed in a monitored liquid and comprises:

the water quality detector comprises a device body and a water quality detection device, wherein the device body comprises a first body and a second body which extend along the length direction of the device body, and a third body which connects the first body and the second body from the side edges, and the end surfaces of the first body and the second body and the inner side surface of the third body form a water quality detection area;

the light beam emission unit comprises a light source and a first lens, wherein the first lens is arranged on the end face of the first body forming the water quality detection area;

and the light beam analysis unit comprises a second lens, a slit, a grating and a linear array detector which are sequentially arranged in a second body, wherein the second lens is arranged on the end face of the second body forming the water quality detection area, the linear array detector is positioned between the slit and the grating and extends along the length direction of the second body to form the linear array detection area, the light beam sequentially penetrates through the first lens, the water quality detection area, the second lens, the slit and the grating, and a plurality of light beams irradiate to the linear array detection area of the linear array detector under the light splitting reflection of the grating so as to obtain a plurality of index parameters of the water quality in the water quality detection area.

Preferably, centers of the light source, the first lens, the second lens, the slit, and the grating are located on the same axis. Therefore, the light beam has strong anti-interference capability, and is more favorable for implementing the index detection of the water quality in the water quality detection area.

Furthermore, the first lens and the second lens are arranged in parallel and symmetrically. Further avoiding the loss of light and more effectively enabling the detection light beam to be received by the grating.

According to a specific implementation and preferred aspect of the utility model, the distance between the first lens and the second lens is adjustably set. In this case, the detection requirements of different water areas are met by adjusting the spacing distance, namely adjusting the absorption optical path of the water sample.

Specifically, the adjusting mode has two modes, namely, the relative movement of the end surfaces of the first body and the second body is adjusted; the second lens, the first lens and the second lens are respectively adjusted relatively to the corresponding end surfaces.

According to still another embodiment and preferred aspect of the present invention, the multiple index detector further includes a cleaning member provided in the water quality detection area and capable of cleaning the mirror surfaces of the first lens and the second lens, respectively. Under the cleaning of the cleaning component, foreign matters on the mirror surface are removed, so that the detection analysis of different light beams in the linear array detection area is more effectively and accurately implemented, and different performance indexes are obtained.

Preferably, the cleaning member is located between the first body and the second body and moves relative to the mirror surface to perform mirror surface synchronization cleaning of the first lens and the second lens. Convenient operation and is more beneficial to the penetration of light beams.

According to still another embodiment and preferred aspect of the present invention, the cleaning member includes a rotary shaft provided transversely between the first body and the second body, a cleaning wiper provided on the rotary shaft, and a driver for driving the rotary shaft to reverse around its axis in a forward and reverse direction, wherein the cleaning wiper has a cleaning surface which is engaged with the mirror surface, and the cleaning surface covers the mirror surface around a cleaning zone formed by the rotary shaft. In this way, simultaneous cleaning of the two mirror surfaces can be performed and very comprehensive.

Preferably, the cleaning scraping brush comprises a rack fixed on the rotating shaft and flexible scraping blades which are detachably arranged at two ends of the rack and correspond to the mirror surfaces one by one. Convenient and timely replacement and simple and convenient maintenance.

Specifically, the flexible scraper is a silica gel or rubber scraper. Thus, the mirror surface can not be damaged during scraping and sweeping, and the service life is prolonged.

In this example, the cross section of the rotating shaft is D-shaped, and the two ends are inserted into the ends of the first body and the second body respectively, the sheet frame is fixed on the vertical side of the D-shaped, the flexible doctor blade has two sheets, and the two sheets are embedded at the two ends of the sheet frame respectively, and the driver is a motor and is located inside the first body or the second body.

In addition, the light source comprises a data acquisition main control board, a chip board and a flashing xenon lamp, wherein the emission spectrum range of the flashing xenon lamp is 185-2000 nm and is a continuous spectrum, the data acquisition main control board is communicated with the linear array detector, and the data acquisition main control board can record or feed back the detection result to the user terminal in real time.

Meanwhile, the end faces of the first body and the second body are arranged in parallel, the first lens and the second lens are connected to the end faces in a sealing mode through sealing rings, and the first lens and the second lens are made of ultraviolet fused quartz which is transparent to ultraviolet wave bands. The lens made of the material has a good light beam transmission effect so as to improve the accuracy of a detection result, has a good service life, can reach the IP68 protection level on the whole, and can work underwater for a long time.

Preferably, the outer shell of the first body and the outer shell of the second body are made of stainless steel or titanium alloy materials, and the outer shell is a protective outer shell and is also a mounting and fixing support for all parts inside.

Due to the implementation of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model analyzes various parameter indexes of water quality on line or in real time by splitting the detection light beam to the linear array detector on the premise of not needing manual sampling, has the advantages of high response speed, strong anti-interference capability, compact structure, simple and convenient maintenance, high detection result accuracy and higher waterproof performance, and can work underwater for a long time.

Drawings

The utility model is described in further detail below with reference to the figures and specific examples.

FIG. 1 is a schematic structural diagram of a multi-index detector of the present invention;

FIG. 2 is a schematic front view of the multi-index detector of the present invention;

wherein: 1. a device body; 11. a first body; 12. a second body; 13. a third body; s, a water quality detection area;

2. a light beam emitting unit; 20. a light source; 200. a data acquisition main control board; 201. a chip board; 202. flashing xenon lamps; 21. a first lens;

3. a beam analysis unit; 30. a second lens; 31. a slit; 32. a grating; 33. a linear array detector; J. a linear array detection area;

4. a cleaning member; 40. a rotating shaft; 41. cleaning and scraping brushes; 410. a sheet rack; 411. a flexible blade.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, the multi-index detector for online or real-time detection of water quality of the present embodiment can be placed in a liquid to be monitored, and therefore, has high waterproof performance (the whole can reach IP68 protection level), and can work underwater for a long time.

Specifically, the multi-index detector comprises a detector body 1, a light beam emitting unit 2 and a light beam analyzing unit 3.

In this embodiment, the device body 1 includes a first body 11 and a second body 12 extending along the longitudinal direction thereof, and a third body 13 connecting the first body 11 and the second body 12 from the side, wherein the end surfaces of the first body 11 and the second body 12, and the inner side surface of the third body 13 constitute a water quality detection area S.

Specifically, the first body 11 and the second body 12 are coaxial cylinders, and the housing is made of stainless steel or titanium alloy, which is not only a protective housing, but also a mounting and fixing support for each internal component.

The end faces of the first body 11 and the second body 12 are arranged in parallel.

Referring to fig. 2, the light beam emitting unit 2 includes a light source 20 and a first lens 21, wherein the first lens 21 is mounted on an end surface of the first body 11 forming the water quality detection region S.

The light source 20 comprises a data acquisition main control board 200, a chip board 201 and a flash xenon lamp 202, wherein the emission spectrum range of the flash xenon lamp 202 is 185 nm-2000 nm and is a continuous spectrum, the data acquisition main control board 200 is communicated with the light beam analysis unit 3, and the data acquisition main control board can record or feed back the detection result to the user terminal in real time.

The light beam analysis unit 3 comprises a second lens 30, a slit 31, a grating 32 and a linear array detector 33 which are sequentially arranged in the second body 12, wherein the second lens 30 is arranged on the end face of the second body 12 forming a water quality detection area, the linear array detector 33 is positioned between the slit 31 and the grating 32 and extends along the length direction of the second body 12 to form a linear array detection area J, and meanwhile, the linear array detector 33 is communicated with the data acquisition main control board 200.

Centers of the xenon flash lamp 202, the first lens 21, the second lens 30, the slit 31, and the grating 32 are located on the same axis. Therefore, the light beam has strong anti-interference capability, and is more favorable for implementing the index detection of the water quality in the water quality detection area.

The first lens 21 and the second lens 30 are disposed in parallel and symmetrically. Further avoiding the loss of light and more effectively enabling the detection light beam to be received by the grating.

The distance between the first lens 21 and the second lens 30 is adjustably set. In this case, the detection requirements of different water areas are met by adjusting the spacing distance, namely adjusting the absorption optical path of the water sample.

That is, the first way: the first lens 21 and the second lens 30 are hermetically connected to the corresponding end surfaces by a seal ring, and the first body 11 and the second body 12 are movably connected to the third body 13.

Or, the first body 11, the second body 12 and the third body 13 are integrally formed, and the first lens 21 and the second lens 30 are movably and hermetically connected to the corresponding end surfaces through the sealing rings.

Meanwhile, the end faces of the first body 11 and the second body 12 are arranged in parallel, the first lens 21 and the second lens 30 are connected to the end faces in a sealing mode through sealing rings, and the first lens 21 and the second lens 30 are made of ultraviolet fused quartz which is transparent to ultraviolet wave bands. The lens made of the material has a good light beam transmission effect so as to improve the accuracy of a detection result, has a good service life, can reach the IP68 protection level on the whole, and can work underwater for a long time.

In this example, the multi-index measuring instrument further includes a cleaning member 4 provided in the water quality detection region S and capable of cleaning the mirror surfaces of the first lens 21 and the second lens 30, respectively. Under the cleaning of the cleaning component, foreign matters on the mirror surface are removed, so that the detection analysis of different light beams in the linear array detection area is more effectively and accurately implemented, and different performance indexes are obtained.

The cleaning member 4 is located between the first body 11 and the second body 12 and moves relative to the mirror surface to perform mirror surface synchronization cleaning of the first lens 21 and the second lens 30. Convenient operation and is more beneficial to the penetration of light beams.

In this example, the cleaning member 4 includes a rotating shaft 40 transversely disposed between the first body 11 and the second body 12, a cleaning wiper 41 disposed on the rotating shaft 40, and a driver for driving the rotating shaft 40 to reverse around its axis, wherein the cleaning wiper 41 has a cleaning surface engaged with the mirror surface, and the cleaning surface covers the mirror surface around a cleaning area formed by the rotating shaft. In this way, simultaneous cleaning of the two mirror surfaces can be performed and very comprehensive.

The cleaning wiper 41 includes a holder 410 fixed to the rotary shaft 40, and flexible blades 411 detachably attached to both ends of the holder 410 and corresponding to the mirror surfaces one by one.

In this example, the flexible blade 411 is a silicone or rubber blade.

In this embodiment, the cross section of the rotating shaft 40 is D-shaped, and two ends of the rotating shaft are respectively inserted into the ends of the first body 11 and the second body 12, the sheet frame 410 is fixed on the vertical side of the D-shape, the flexible scraper 411 has two pieces and is respectively embedded at two ends of the sheet frame 410, and the driver is a motor and is located inside the first body 11 or the second body 12.

The implementation process of this embodiment is as follows:

s1, placing the multi-index detector into the water area to be detected, and filling water into the water quality detection area S;

s2, the chip board 201 controls and excites the xenon flash lamp 202 to emit continuous light beams, the light beams sequentially pass through the first lens 21, water in the water quality detection area S, the second lens 30, the slit 31 and the grating 32, and a plurality of light beams are emitted to the linear array detection area J of the linear array detector 33 under the light splitting of the grating 32;

s3, under the analysis of the linear array detector 33, obtaining multiple index parameters of the water quality in the water quality detection area S, feeding back the parameters to the data acquisition main control board 200, and simultaneously recording or feeding back the detection result to the user terminal in real time by the data acquisition main control board 200.

Of course, in S3, the detection result may be recorded or fed back to the user terminal directly by the line array detector 33 in real time.

It should be noted that the silicone rubber or rubber blade for self-cleaning the mirror surface in this embodiment can effectively scrape off the foreign matter, thereby further improving the accuracy of the detection result.

Therefore, according to the embodiment, on the premise of not needing manual sampling, the light beam is split to the linear array detector through the detection light beam, so that various parameter indexes of water quality are analyzed on line or in real time, the response speed is high, the loss rate of the light beam is extremely low, the anti-interference capability is high, the structure is compact, the maintenance is simple and convenient, meanwhile, under the self-cleaning of the lens, the effective penetration of the light beam is further improved, the detection result accuracy is high, and in addition, the lens has higher waterproof performance and can work underwater for a long time.

The present invention has been described in detail in order to enable those skilled in the art to understand the utility model and to practice it, and it is not intended to limit the scope of the utility model, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.

Claims

1. A grating light-splitting type polynomial index detector for water quality online or real-time detection is characterized in that: which can be placed in a liquid to be monitored and which comprises:

the light beam emitting unit comprises a light source and a first lens, wherein the first lens is arranged on the end face of the first body forming the water quality detection area;

and the light beam analysis unit comprises a second lens, a slit, a grating and a linear array detector which are sequentially arranged in the second body, wherein the second lens is arranged on the end face of the water quality detection area formed by the second body, the linear array detector is positioned between the slit and the grating and extends along the length direction of the second body to form the linear array detection area, the light beam sequentially penetrates through the first lens, the water quality detection area, the second lens, the slit and the grating, and a plurality of light beams irradiate to the linear array detection area of the linear array detector under the light splitting reflection of the grating so as to obtain a plurality of index parameters of the water quality in the water quality detection area.

2. The grating light-splitting type polynomial indicator detector for online or real-time water quality detection according to claim 1, characterized in that: the centers of the light source, the first lens, the second lens, the slit and the grating are positioned on the same axis.

3. The grating spectroscopic type multinomial index detector for online or real-time water quality detection according to claim 1 or 2, wherein: the first lens and the second lens are arranged in parallel and symmetrically.

4. The grating light-splitting type polynomial indicator detector for online or real-time water quality detection according to claim 1, characterized in that: the distance between the first lens and the second lens can be adjusted and set.

5. The grating light-splitting type polynomial indicator detector for online or real-time water quality detection according to claim 1, characterized in that: the multi-index detector further comprises a cleaning component which is arranged in the water quality detection area and can respectively clean the mirror surfaces of the first lens and the second lens.

6. The grating light-splitting type polynomial indicator detector for online or real-time water quality detection according to claim 5, characterized in that: the cleaning component is positioned between the first body and the second body and moves relative to the mirror surface to implement synchronous mirror surface cleaning of the first lens and the second lens.

7. The grating light-splitting type polynomial indicator detector for online or real-time water quality detection according to claim 6, characterized in that: the cleaning component comprises a rotating shaft transversely arranged between the first body and the second body, a cleaning scraping brush arranged on the rotating shaft and a driver for driving the rotating shaft to do forward and reverse overturning motion around the axis of the rotating shaft, wherein the cleaning scraping brush is provided with a cleaning surface matched with the mirror surface, and the cleaning surface covers the mirror surface around a cleaning area formed by the rotating shaft.

8. The grating light-splitting type polynomial indicator detector for online or real-time water quality detection according to claim 7, characterized in that: the cleaning scraping brush comprises a rack fixed on the rotating shaft and flexible scraping blades detachably arranged at two end parts of the rack and corresponding to the mirror surfaces one by one.

9. The grating light-splitting type polynomial indicator detector for online or real-time water quality detection according to claim 1, characterized in that: the light source comprises a data acquisition main control board, a chip board and a flash xenon lamp, wherein the emission spectrum range of the flash xenon lamp is 185-2000 nm and is a continuous spectrum, the data acquisition main control board is communicated with the linear array detector, and the data acquisition main control board can record or feed back a detection result to the user terminal in real time.

10. The grating light-splitting type polynomial indicator detector for online or real-time water quality detection according to claim 1, characterized in that: the first body with the terminal surface parallel arrangement of second body, first lens with the second lens pass through sealing washer sealing connection and be in the terminal surface, just first lens with the second lens material is for passing through the ultraviolet fused quartz of ultraviolet wave band.