Water environment monitoring device

Abstract

The utility model provides a water environment monitoring device. The water environment monitoring device comprises a shell and an integration part. The integration part is detachably installed at one end of the shell, and a light source, a first sensor and a light path base are arranged in the integration part. The light path seat is provided with a first light-passing window, a sensor protection shell is arranged on the outer side of the first sensor, the sensor protection shell is provided with a second light-passing window, and a to-be-detected area for containing to-be-detected liquid is formed between the first light-passing window and the second light-passing window. Light emitted by the light source enters the to-be-detected area through the first light-passing window, and scattered light and / or fluorescent light generated after the light passes through the to-be-detected liquid can enter the first sensor through the second light-passing window.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of monitoring devices, in particular to a water environment monitoring device. BACKGROUND

[0002] With the development of petrochemical, pesticide, organic chemical raw material manufacturing, coking and other key industries, the organic pollutants generated in their production processes are complex in composition and high in toxicity, which may have a great impact on the water environment. These organic pollutants may exist in various forms in water, including dissolved, colloidal and suspended states, and their concentration and species may change over time and space. Therefore, it is of great significance to protect the water environment and public health to monitor and evaluate the organic pollutants in water quickly and accurately.

[0003] At present, the detection of organic pollutants mainly adopts traditional laboratory detection methods such as mass spectrometry-chromatography combination. Although these methods are accurate and reliable, they have the disadvantages of high cost and low efficiency, and cannot meet the demand of in-situ high-frequency monitoring of water quality changes of organic pollutants in water. Optical monitoring technology has become a research hotspot in domestic and foreign groundwater quality monitoring in recent years because of its advantages of simple operation, no need of reagent consumption, good repeatability, high measurement accuracy and rapid detection. However, there is still a lack of in-situ monitoring equipment.

[0004] Patent No. CN108828179B discloses an integrated expandable micro water quality online monitoring system, which needs to move the substances in the detection area to the detection unit for detection, and its convenience needs to be improved. Practical new type content

[0005] In order to solve or alleviate at least one technical problem mentioned in the background art, the present application provides a water environment monitoring device.

[0006] The water environment monitoring device provided by the embodiment of the present application comprises:

[0007] a shell;

[0008] an integrated part, which is detachably installed at one end of the shell, and is provided with a light source, a first sensor and a light path seat in the integrated part, the light path seat is provided with a first light transmission window, the outer side of the first sensor is provided with a sensor protection shell, the sensor protection shell is provided with a second light transmission window, and a detection area for accommodating a to-be-detected liquid is formed between the first light transmission window and the second light transmission window,

[0009] the light emitted by the light source enters the detection area through the first light transmission window, and the scattered light and / or fluorescence generated after the light passes through the to-be-detected liquid can enter the first sensor through the second light transmission window.

[0010] In at least one embodiment, the light source comprises a plurality of LED chips capable of emitting different wavelengths, the light source is configured to be capable of controlled emission of light of multiple wavelengths, or

[0011] The light source comprises a plurality of movable LED chips, each of which is configured to be capable of controlled movement towards or away from the optical axis of the light source.

[0012] In at least one embodiment, the integrated part comprises a cylindrical integrated first part and a plate-shaped integrated second part, the integrated first part extends into the shell, a sealing ring is arranged between the integrated first part and the inner wall of the shell, and the integrated second part abuts against and is connected to the end of the shell.

[0013] In at least one embodiment, one side of the first sensor facing the second light transmission window is a target surface, and a first filter and a second filter are stacked from the inside to the outside on the target surface, the first filter is used for spectroscopy of the scattered light and / or the fluorescence, and the second filter is used for filtering light directly emitted by the light source.

[0014] In at least one embodiment, a sensor holder is arranged in the integrated part and a holder track is formed therein, the first sensor is arranged in the sensor holder, the sensor holder is slidingly connected to the holder track along the axial direction of the water environment monitoring device, and the first filter is a quantum dot filter; and / or, the area of the first filter is larger than that of the second filter.

[0015] In at least one embodiment, the first light transmission window is provided with a first window sheet, the second light transmission window is provided with a second window sheet, and the water environment monitoring device further comprises a cleaning brush, the brush head of the cleaning brush is configured to be capable of cleaning the first window sheet and the second window sheet.

[0016] In at least one embodiment, the water environment monitoring device comprises an end cover arranged at the other end of the shell, a waterproof joint is arranged in the end cover, and / or

[0017] The water environment monitoring device further comprises a protective mesh cover arranged outside the integrated part, the protective mesh cover has mesh holes, so that the to-be-tested liquid can flow into the to-be-tested area defined by the protective mesh cover from the mesh holes, the protective mesh cover is threadedly connected to the integrated part, or a protective mesh cover connecting hole is arranged on the peripheral surface of the protective mesh cover, the integrated part comprises an integrated third part, an integrated part connecting hole corresponding in position to the protective mesh cover connecting hole is arranged on the integrated third part, and the protective mesh cover connecting hole and the integrated part connecting hole are connected by a rivet.

[0018] In at least one embodiment, a plurality of groups of detection assemblies for detecting different substances are arranged in parallel along an axial direction of the water environment monitoring device, and each of the detection assemblies comprises the light source and the first sensor.

[0019] In at least one embodiment, a second sensor is arranged in the light path seat, and light emitted by the light source is configured to enter the second sensor after being partially reflected.

[0020] In at least one embodiment, an angle between an optical axis of the light source and an axis of the first sensor is one of 45° and 90°.

[0021] The light source and the sensor are integrated in the water environment monitoring device according to the present application, and in-situ detection can be achieved. The light source, the sensor, and the light path seat are arranged in the integrated part, and the integrated part is detachably connected to the shell. The components can be detached from the shell by detaching the integrated part, which facilitates maintenance. The device has a compact structure, and miniaturization of the monitoring device can be achieved, which facilitates deployment in narrow spaces and other locations. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A cross-sectional view of a water environment monitoring device according to an embodiment of the present application is shown.

[0023] Figure 2 A front view of an integrated part of a water environment monitoring device according to an embodiment of the present application is shown.

[0024] Figure 3 An A-A cross-sectional view of the integrated part of the water environment monitoring device according to the embodiment of the present application is shown.

[0025] Figure 4A A front view of the integrated part and a protective mesh cover of the water environment monitoring device according to the embodiment of the present application is shown.

[0026] Figure 4B A B-B cross-sectional view of the integrated part and the protective mesh cover in Figure 4A is shown.

[0027] Figure 4C A front view of the integrated part in Figure 4A is shown.

[0028] Figure 4D An isometric view of the integrated part and the protective mesh cover in Figure 4A is shown.

[0029] Figure 5A A front view of the integrated part and the protective mesh cover of the water environment monitoring device according to the embodiment of the present application is shown.

[0030] Figure 5B A front view of the integrated part in Figure 5AC-C sectional view of the integrated part and the protective mesh cover in

[0031] Figure 5C A front view of the integrated part in Figure 5A

[0032] Figure 5D A front view of the integrated part in Figure 5A

[0033] Figure 6A A top view of the integrated part and the protective mesh cover of the water environment monitoring device according to the embodiment of the present application is shown.

[0034] Figure 6B A front view of the integrated part in Figure 6A

[0035] Figure 6C A front view of the integrated part in Figure 6A

[0036] BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0037] 100 housing; 110 end cap; 120 waterproof joint; 130 power module; 140 control module; 150 structural interface;

[0038] 200 integrated part; 210 integrated first part; 220 integrated second part; 230 integrated third part; 240 integrated part connecting hole; 250 support column; 260 support plate;

[0039] 300 light source;

[0040] 400 first sensor; 410 sensor protection shell; 420 second light transmission window; 430 target surface; 440 sensor support; 450 second window sheet;

[0041] 500 light path seat; 510 first light transmission window; 520 first window sheet; 530 dichroic mirror; 540 second sensor; 550 lens; 560 mounting port; 570 light shield cover;

[0042] 600 cleaning brush; 610 brush head;

[0043] 700 protective mesh cover; 710 mesh hole; 720 protective mesh cover connecting hole;

[0044] 800 region to be measured DETAILED DESCRIPTION

[0045] ​​​​The exemplary embodiments of the present application are described herein with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the application, are given by way of illustration only, since various changes and modifications within the scope of the application will become apparent to those skilled in the art from this detailed description.

[0046] The embodiments of the present application provide a water environment monitoring device, for example, for monitoring organic matters in water. Referring to Figure 1 The water environment monitoring device can include a housing 100 and an integrated part 200 which is detachably installed at one end of the housing 100.

[0047] The integrated part 200 can be provided with a light source 300, a first sensor 400 and a light path seat 500. The light path seat 500 is provided with a first light transmission window 510, and the outer side of the first sensor 400 is provided with a sensor protection shell 410 which is provided with a second light transmission window 420. A to-be-measured area 800 for accommodating a to-be-measured liquid is formed between the first light transmission window 510 and the second light transmission window 420.

[0048] The light emitted by the light source 300 enters the to-be-measured area 800 through the first light transmission window 510, and the scattered light and / or fluorescence generated after the light passes through the to-be-measured liquid can enter the first sensor 400 through the second light transmission window 420.

[0049] The present application integrates the light source and the sensor in the water environment monitoring device, and in-situ detection can be achieved. The light source, the sensor and the light path seat are all arranged in the integrated part, and the integrated part is detachably connected with the housing. The components can be detached from the housing by detaching the integrated part, which is convenient for maintenance. The device has compact structure, and miniaturization of the monitoring device can be achieved, which is convenient for being placed in narrow space and other positions.

[0050] Of course, the light source 300 and the power module 130 and the control module 140 and other modules to be introduced later can also be connected to the housing instead of the integrated part 200, which can increase the stability of these components which do not need to be frequently maintained.

[0051] For the light source 300, in one example, the light source 300 can include a plurality of LED (light emitting diode) chips which are integrally arranged and can emit light of different wavelengths, and the light source 300 is configured to be able to controllably emit light of multiple wavelengths. Each LED chip can be close to the optical axis of the light source 300, for example, in the form of an LED lamp panel. Alternatively, each LED chip is not integrated, and the light source 300 includes a plurality of movable LED chips, each of which is configured to be able to be controlled to move towards or away from the optical axis of the light source 300. Of course, the light source 300 can also adopt a plurality of lead-type LED bulbs which are integrally arranged, and a sliding groove is arranged on a circuit board or other positioning structure, and the LED bulbs are arranged to be movable.

[0052] Therefore, the light source 300 can emit light of a specific wavelength as required, has high integration and high light energy utilization.

[0053] For the light path seat 500, in an example, a dichroic mirror 530 and a second sensor 540 can be arranged in the light path seat 500. The dichroic mirror 530 has the functions of transmission and reflection. The dichroic mirror 530 can be inclined to the optical axis, for example, at an angle of 45°, so that part of the light passes through the dichroic mirror 530 into the downstream of the detection light path, and the other part of the light is reflected by the dichroic mirror 530 into the second sensor 540. Of course, the present application is not limited to using the dichroic mirror 530. An optical lens that can partially reflect and partially transmit, such as a quartz plate, can be used, so that the light emitted by the light source 300 can enter the second sensor 540 after being partially reflected.

[0054] The second sensor 540 can be used to detect changes in the performance of the light source 300, such as monitoring light intensity, wavelength, spectral line, etc., to improve detection accuracy.

[0055] A lens 550 can also be arranged downstream of the dichroic mirror 530. The lens 550 can be selected to have a large diameter and a small focal length, so as to form a relatively large field of view and increase the utilization of light.

[0056] In order to facilitate the installation of the aforementioned optical components, a mounting port 560 can be arranged in the light path seat 500. An optical cover 570 can be arranged at the mounting port 560 to prevent stray light on the circuit board of a module such as the control module 140 (described later) from entering the mounting port 560. Of course, a hatch that can be opened and closed can also be arranged at the mounting port 560 to achieve the purpose of light shielding.

[0057] For the integrated part 200, in an example, referring to Figure 2 , Figure 3 The integrated part 200 can include a cylindrical integrated first part 210 and a plate-shaped integrated second part 220. Of course, the cylinder can be a circular cylinder or a square cylinder. The plate can be a circular plate or a rectangular plate. Referring to Figure 1 The integrated first part 210 can extend into the housing 100, and a sealing ring can be arranged between the integrated first part 210 and the inner wall of the housing 100 to achieve a sealed connection and meet the waterproof requirements of, for example, IP68. The integrated second part 220 abuts and is connected to the end of the housing 100, and the integrated second part 220 can be connected to the housing 100 by screws. For example, the edges of the integrated second part 220 can be provided with embedded holes, and the integrated part 200 can be connected to the housing 100 by the embedded holes and screws.

[0058] If the integrated first part 210 is threadedly connected to the housing 100 and a sealing ring is provided between the integrated first part 210 and the inner wall of the housing 100, the integrated first part 210 will be too long, and the sealing ring will suffer severe wear during rotation, resulting in poor sealing performance. The connection method of this application can avoid this problem and achieve a good sealing effect.

[0059] For the first sensor 400, see [example] in one instance. Figure 3 The side of the first sensor 400 facing the second light-transmitting window 420 is the target surface 430. A first filter and a second filter (the second filter is closer to the second light-transmitting window 420) are stacked and integrated on the target surface 430 from the inside out. For example, the first filter can separate scattered light and / or fluorescence, while the second filter filters out (absorbs) the light directly emitted by the light source 300, ensuring that the first sensor 400 only receives scattered light and / or fluorescence generated after the light emitted by the light source 300 passes through the liquid being tested. The integration of the second filter into the target surface 430 reduces the influence of stray light on the sensor. Of course, more filters can be integrated onto the target surface 430 to meet various detection needs. Optionally, the area of ​​the first filter is larger than the area of ​​the second filter. That is, there are areas where the first filter is not in front of the second filter, allowing the light directly emitted by the light source 300 to illuminate the first filter that is not blocked by the second filter, and thus enter the target surface 430.

[0060] Furthermore, in one example, see Figure 3 The integration unit 200 includes a sensor bracket 440 with a bracket track. The first sensor 400 is housed within the sensor bracket 440, which is positioned along the axial direction of the water environment monitoring device. Figure 3 The first sensor 400 is slidably connected to the support track (in the left-right direction), allowing it to slide along the axial direction of the water environment monitoring device. The first filter can be a quantum dot filter with different functional areas. After the first sensor 400 slides axially, it can change the area where light falls on the first filter, so that the light illuminates the ideal functional area and avoids stray light interfering with the detection.

[0061] For a light-transmitting window, see one example. Figure 3 A first window piece 520 is provided outside the first light-transmitting window 510 (for example, at the connection between the integrated second part 220 and the optical path holder 500). A second window piece 450 is provided at the second light-transmitting window 420. The window pieces can be connected to the windows with adhesive to achieve, for example, IP68 waterproof requirements.

[0062] See Figure 2 , Figure 3The water environment monitoring device can further include a cleaning brush 600, and a brush head 610 of the cleaning brush 600 is configured to be capable of cleaning the first window sheet 520 and the second window sheet 450. The brush head 610 can be bristles or a brush plate. In one example, the axis of the first light-transmitting window 510 is perpendicular to the axis of the second light-transmitting window 420, the first window sheet 520 and the second window sheet 450 are perpendicular, the brush head 610 is formed as a brush plate, and the brush head 610 rotates around the axis of the cleaning brush 600, so that the brush plate can scrape and clean the first window sheet 520 and the second window sheet 450, achieving a cleaning effect. It can be understood that Figure 3 The brush plate in the above-mentioned example is in a state of not being returned to normal, and when the brush plate is returned to normal, the edges of the brush plate can simultaneously contact the first window sheet 520 and the second window sheet 450. The brush plate can be a flexible brush plate. Of course, the angle between the axis of the first light-transmitting window 510 and the axis of the second light-transmitting window 420 can be set to 45° to 90°, such as 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, etc. It can be understood that the angle refers to the smallest positive angle formed by the intersection of the two axes, so for example, 45° actually includes two embodiments that the second window sheet 450 is close to the first window sheet 520 and the second window sheet 450 is relatively far away from the first window sheet 520. Or the angle between the optical axis of the light source 300 and the axis of the first sensor 400 is one of 45° to 90°, such as 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, etc. It can be understood that the angle refers to the smallest positive angle formed by the intersection of the two axes.

[0063] Referring to Figure 1 The water environment monitoring device can further include a protective mesh cover 700 arranged outside the integrated part 200, and the protective mesh cover 700 has mesh holes 710 that can filter impurities such as large pieces of garbage, so that the to-be-measured liquid can flow into the to-be-measured area 800 defined by the protective mesh cover 700 from the mesh holes 710.

[0064] The protective mesh cover 700 can be threadedly connected with the integrated part 200. For example, the protective mesh cover 700 can be in the form of a cover, and the cover is screwed onto the integrated part 200. Referring to Figure 4A , Figure 4B , Figure 4C , Figure 4D The thread can be a common right-handed thread. Alternatively, referring to Figure 5A , Figure 5B , Figure 5C , Figure 5D The thread can be an uncommon left-handed thread, which can play a role in anti-disassembly and anti-theft to some extent.

[0065] Alternatively, referring to Figure 6A , Figure 6B and Figure 6CThe circumferential surface of the protective screen cover 700 can be provided with a protective screen cover connecting hole 720, the integrated part 200 includes an integrated third part 230, the integrated third part 230 is provided with an integrated part connecting hole 240 corresponding to the position of the protective screen cover connecting hole 720, and the protective screen cover connecting hole 720 and the integrated part connecting hole 240 are connected by, for example, a rivet.

[0066] In one example, a plurality of groups of detection assemblies for detecting different substances are arranged in parallel in the axial direction of the water environment monitoring device, and each group of detection assemblies includes a light source 300 and a first sensor 400. In an example, the water environment monitoring device includes two groups of detection assemblies. In this way, the types of measurements of, for example, organic matter in water can be increased.

[0067] Referring to Figure 1 The water environment monitoring device can further include an end cover 110, which can be arranged at the other end (left end) of the shell 100. In an example, the end cover 110 can be threadedly connected or snap-connected to the shell 100. A sealing ring can be arranged between the end cover 110 and the shell 100, for example, two sealing rings can be arranged to meet the IP68 waterproof requirement.

[0068] A waterproof joint 120 can be arranged on the end cover 110, which is used to achieve power supply connection and / or signal connection between the inside and outside of the shell 100. The waterproof joint 120 and the end cover 110 can be cooperated by measures such as potting and sealing gasket to meet the IP68 waterproof requirement.

[0069] A power supply module 130 and a control module 140 can be arranged in the shell 100, which are used to be connected with the aforementioned sensors, light sources 300 and other components to achieve power supply and control. The power supply module 130 and the control module 140 can be connected with the outside through the waterproof joint 120.

[0070] The integrated part 200 can include a support column 250, the light source 300 and the light path seat 500 can be connected to the support column 250 and then connected to the integrated part 200. The integrated part 200 can include a support plate 260, the power supply module 130 is connected to the control module 140, the control module 140 is connected to the support plate 260, and the support plate 260 is connected to the support column 250, so that the power supply module 130 and the control module 140 can be connected to the integrated part 200. In this way, the aforementioned structure can be removed together with the integrated part 200, has high integration, is convenient for maintenance and repair, and is conducive to miniaturization.

[0071] A sealing gasket can be arranged between the sensor protection shell 410 and the integrated part 200, and the sensor protection shell 410 can be connected to the integrated part 200 by means of threaded connection, rivet connection, and gluing.

[0072] A recessed structure interface 150 can be arranged on the circumferential surface of the shell 100, which can facilitate connection with other devices, holding, and the like.

[0073] Generally, the light path of the water environment monitoring device provided in the present application can include: the light of the light source 300 sequentially passes through the dichroic mirror 530, the lens 550, the first light transmission window 510, the to-be-measured region 800, and the second light transmission window 420 to enter the first sensor 400. The light of the light source 300 can also enter the second sensor 540 through the reflection of the dichroic mirror 530.

[0074] The above describes the preferred embodiments of the present application. It should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A water environment monitoring device characterized by comprising: The water environment monitoring device comprises: a housing; an integrated part which is detachably mounted at one end of the housing, wherein a light source, a first sensor and a light path seat are arranged in the integrated part, the light path seat is provided with a first light transmission window, the outer side of the first sensor is provided with a sensor protection shell, the sensor protection shell is provided with a second light transmission window, and a to-be-detected area for accommodating a to-be-detected liquid is formed between the first light transmission window and the second light transmission window, light emitted by the light source enters the to-be-detected area through the first light transmission window, and scattered light and / or fluorescence generated after the light passes through the to-be-detected liquid can enter the first sensor through the second light transmission window.

2. The water environment monitoring apparatus according to claim 1, characterized by The light source comprises a plurality of LED chips capable of emitting light of different wavelengths which are arranged integrally, the light source is configured to be capable of controlled emission of light of multiple wavelengths, or The light source comprises a plurality of movable LED chips, each of which is configured to be capable of controlled movement towards or away from the optical axis of the light source.

3. The water environment monitoring apparatus according to claim 1, characterized by The integrated part comprises a cylindrical integrated first part and a plate-shaped integrated second part, the integrated first part extends into the housing, a sealing ring is arranged between the integrated first part and the inner wall of the housing, and the integrated second part abuts against and is connected to the end of the housing.

4. The water environment monitoring apparatus according to claim 1, characterized by One side of the first sensor facing the second light transmission window is a target surface, a first filter and a second filter are arranged in layers from the inside to the outside on the target surface, the first filter is used for light splitting of the scattered light and / or the fluorescence, and the second filter is used for filtering light directly emitted by the light source.

5. The water environment monitoring apparatus according to claim 4, characterized by A sensor support is arranged in the integrated part and a support rail is formed in the integrated part, the sensor support is arranged with the first sensor, the sensor support is slidably connected to the support rail along the axial direction of the water environment monitoring device, the first filter is a quantum dot filter, and / or the area of the first filter is greater than the area of the second filter.

6. The water environment monitoring apparatus according to claim 1, characterized by The first light transmission window is provided with a first window piece, the second light transmission window is provided with a second window piece, and the water environment monitoring device further comprises a cleaning brush, a brush head of the cleaning brush is configured to be capable of cleaning the first window piece and the second window piece.

7. The water environment monitoring apparatus according to any one of claims 1 to 6, characterized by, The water environment monitoring device comprises an end cover arranged at the other end of the housing, a waterproof joint is arranged in the end cover, and / or The water environment monitoring device further comprises a protective mesh cover arranged on the outer side of the integrated part, the protective mesh cover has mesh holes, so that the to-be-detected liquid can flow into the to-be-detected area defined by the protective mesh cover from the mesh holes, the protective mesh cover is threadedly connected to the integrated part, or a protective mesh cover connecting hole is arranged on the peripheral surface of the protective mesh cover, the integrated part comprises an integrated third part, the integrated third part is provided with an integrated part connecting hole corresponding in position to the protective mesh cover connecting hole, and the protective mesh cover connecting hole and the integrated part connecting hole are connected by a rivet.

8. The water environment monitoring apparatus according to any one of claims 1 to 6, characterized by, A plurality of detection assemblies for detecting different substances are arranged in parallel in the axial direction of the water environment monitoring device, and each of the detection assemblies comprises the light source and the first sensor.

9. The water environment monitoring apparatus according to any one of claims 1 to 6, characterized by, The light path seat is provided with a second sensor, and light emitted by the light source is configured to enter the second sensor after being partially reflected.

10. The water environment monitoring apparatus according to any one of claims 1 to 6, characterized by, An angle between an optical axis of the light source and an axis of the first sensor is one of 45° and 90°.

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