CN220932769U

CN220932769U - Water quality detection module

Info

Publication number: CN220932769U
Application number: CN202322621411.XU
Authority: CN
Inventors: 李志刚; 肖柯; 谢沛男; 肖伟
Original assignee: Dongguan Gurun Technology Co ltd
Current assignee: Dongguan Gurun Technology Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2024-05-10
Anticipated expiration: 2033-09-26

Abstract

The utility model provides a water quality detection module, which is applied to a hyperspectral water quality detector, wherein the water quality detection module comprises: the body, the upper wall of the body is facing inwards to be equipped with a holding groove for placing the cuvette, the body is provided with a first through hole communicated with the holding groove and used for connecting the optical fiber, the body is internally provided with a containing cavity, the body is provided with a water inlet and a water outlet, and the body is provided with a second through hole communicated with the containing cavity and used for connecting the optical fiber; the cover plate is in sealing connection with the body through a sealing gasket and a screw, and is provided with a third through hole which is communicated with the placing groove and is used for connecting the optical fiber, and a fourth through hole which is communicated with the accommodating cavity and is used for connecting the optical fiber; the two light-transmitting pieces are respectively arranged at the inner sides of the second through hole and the fourth through hole; the water quality detection module provided by the utility model adopts an integrated design, and has the advantages of compact structure, simple principle and high detection accuracy.

Description

Water quality detection module

Technical Field

The utility model belongs to the technical field of water quality detection, and particularly relates to a water quality detection module.

Background

The water quality is important for people in life and production activities. In order to realize water quality monitoring, a water quality analyzer plays a vital role in water quality monitoring.

One type of water quality analyzer commonly used in the industry today is a chemical oxygen demand detector (COD detector), which is a device that calculates the amount of oxidant consumed when a water sample is treated with a strong oxidant under certain conditions. It reflects the degree of pollution of substances in water, and the larger the chemical oxygen demand is, the more serious the pollution of organic substances in water is. The main working principle of the COD water quality detector is that the COD parameters of the sample are obtained through the reaction of the enough strong oxidant and all opportunities in the measured sample and the calculation of a specific formula by measuring the consumption difference of the strong oxidant. The COD water quality detector adopts a reflux elimination titration method, and has the problems of long detection time, easy secondary pollution and the like.

Disclosure of utility model

The utility model aims to provide a water quality detection module to solve the problems of long detection time and easiness in causing secondary pollution in the existing water quality detection scheme.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a water quality testing module is applied to hyperspectral water quality testing appearance, includes: the device comprises a body, wherein the upper wall of the body is provided with a placing groove for placing a cuvette inwards, one side of the placing groove is an open end, the body is provided with a first through hole which is communicated with the placing groove and is used for connecting an optical fiber, the inside of the body is provided with a containing cavity, one side of the containing cavity is an open end, the body is provided with a water inlet and a water outlet, and the body is provided with a second through hole which is communicated with the containing cavity and is used for connecting the optical fiber;

The cover plate is in sealing connection with the body through a sealing gasket and a screw, and is provided with a third through hole which is communicated with the placing groove and is used for connecting an optical fiber, and a fourth through hole which is communicated with the accommodating cavity and is used for connecting the optical fiber;

and the two light-transmitting pieces are respectively arranged at the inner sides of the second through hole and the fourth through hole.

Further, one end of each of the two light-transmitting members is provided with a step, the inner walls of the second through hole and the fourth through hole are respectively provided with a concave ring matched with the step, the outer sides of the second through hole and the fourth through hole are respectively provided with a pressing ring which is propped against the light-transmitting member and provided with internal threads, and the pressing rings are used for being connected with the optical fibers through threads.

Further, a sealing ring is arranged between the step and the concave ring.

Further, the interval between the two light-transmitting pieces is 10mm.

Further, the inner side of the accommodating cavity is provided with a protruding block on a path of the water sample flowing from the water inlet to the light-transmitting member.

Further, the body is provided with an air blowing port and an emptying port.

Further, the air blowing opening and the water inlet are positioned on the side wall of the body, and the emptying opening and the water outlet are positioned on the lower wall surface of the body.

Further, a jet head is arranged above the air blowing opening on the inner side of the accommodating cavity.

Further, an access hole is formed in the upper wall face of the body.

Further, the access hole is a threaded hole, and a threaded plug is arranged above the access hole on the upper wall surface of the body.

The water quality detection module provided by the utility model has the beneficial effects that: the water quality detection module provided by the utility model adopts an integrated design, so that a cuvette, a water sample to be detected and an optical fiber for conveying optical signals can be concentrated on the water quality detection module, and the structure is compact. The water quality detection module provided by the utility model is applied to an instrument for water quality analysis by using hyperspectral contrast, has the advantages of simple principle, high detection accuracy, short detection time, no need of using chemical reagents and no secondary pollution, and can rapidly obtain a detection result.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a water quality detection module according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a water quality detection module according to an embodiment of the present utility model after a cover plate is removed;

FIG. 3 is a schematic diagram of a water quality detection module according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional view of a water quality detection module according to an embodiment of the present utility model.

Wherein, each reference numeral in the figure mainly marks:

10. A body; 101. a cover plate; 102. a sealing gasket; 11. a water inlet; 12. a water outlet; 13. an air blowing port; 131. a jet head; 14. an evacuation port; 20. an optical fiber; 21. a first through hole; 22. a second through hole; 24. a fourth through hole; 31. a cuvette; 32. a receiving chamber; 40. a light transmitting member; 50. a compression ring; 60. a seal ring; 70. a protruding block; 81. an access opening; 82. a threaded plug; 90. and a thermocouple.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The principles and structures of the present utility model are described in detail below with reference to the drawings and the examples.

The utility model provides a water quality detection module which is applied to a hyperspectral water quality detector. It should be noted that, this hyperspectral water quality detector adopts integrative integrated design, this hyperspectral water quality detector includes the casing and locates in the cavity of casing and through optical fiber communication's light source module, detection module, collimation optical module and hyperspectral imaging module, detection module includes analysis water sample unit and contrast water sample unit at least, the light signal that light source module sent is respectively through analysis water sample unit and contrast water sample unit, the light signal after the change is sent to collimation optical module and is calibrated and amplified, hyperspectral imaging module images two light signals that the calibration was amplified, and output to the processor. The hyperspectral water quality detector is an instrument for carrying out water quality analysis by using hyperspectral contrast. The utility model relates to a detection module designed for a water quality detector using hyperspectral contrast analysis.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a water quality detection module according to the present embodiment. The water quality detection module comprises a body 10 and a cover plate 101.

Referring to fig. 2, fig. 2 is a schematic structural diagram of the water quality detection module according to the present embodiment after the cover plate is removed. The upper wall of the body 10 is provided with a placing groove for placing the cuvette 31 inwards, and one side of the placing groove is an open end. The body 10 is internally provided with a containing cavity 32, and one side of the containing cavity 32 is an open end. The body 10 is provided with a water inlet 11 and a water outlet 12. The arrangement positions of the water inlet 11 and the water outlet 12 on the body 10 can be flexibly designed, for example, the water inlet 11 is positioned on the side wall of the body 10, and the water outlet 12 is positioned on the lower wall surface of the body 10. In practical application, the cuvette 31 is a cuboid glass box, the cuvette 31 is filled with a standard water sample, and the cuvette 31 is directly placed in the placing groove. The water sample to be detected is injected into the accommodating cavity 32 through the inlet, and after the detection of the analyzed water sample is completed, the water sample in the accommodating cavity 32 is discharged through the water outlet 12. The inner side of the receiving chamber 32 is provided with a protrusion block 70 on the path of the water sample flowing from the water inlet 11 to the light transmitting member 40, the protrusion block 70 having two opposite sides, and subsequently the side of the protrusion block 70 closer to the water inlet 11 is referred to as a first side, and the side of the protrusion block 70 closer to the light transmitting member 40 is referred to as a second side. The water sample to be detected is injected into the accommodating cavity 32 through the water inlet 11, bubbles are carried in, most of the bubbles are separated on the first side by the convex block 70, the second side is guaranteed to flow to the second lens as much as possible, adverse effects of the bubbles on the optical signals are prevented, and the detection precision is improved.

Referring to fig. 1 and 2, the body 10 is further provided with a thermocouple 90, and the thermocouple 90 is used for detecting the temperature change of the water sample to be detected in real time. The body 10 is also provided with a sealing gasket 102, and the cover plate 101 is in sealing connection with the body 10 through the sealing gasket and a screw. The materials of the body 10 and the cover plate 101 may be the same, and may be, but not limited to, a metal material.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a water quality detection module according to the present embodiment. The body 10 is provided with a first through hole 21 communicating with the placement groove and for connecting the optical fiber 20, and a second through hole 22 communicating with the accommodation chamber 32 and for connecting the optical fiber 20. The cover plate 101 is provided with a third through hole (not shown) communicating with the placement groove for connecting the optical fiber 20, and a fourth through hole 24 communicating with the accommodating chamber 32 for connecting the optical fiber 20. Wherein, the first through hole 21 is opposite to the third through hole, and the second through hole 22 is opposite to the fourth through hole 24.

It will be appreciated that with the cuvette 31 containing a standard water sample, the cuvette 31 is transparent, the optical fibers 20 are mounted in the first through-holes 21 and the second through-holes 22, and the optical signals can directly penetrate the standard water sample in the cuvette 31. The wall of the accommodating cavity 32 is opaque, and when the accommodating cavity 32 is used for accommodating the water sample to be detected, the water sample in the accommodating cavity 32 needs to be prevented from flowing into the second through hole 22 and the fourth through hole 24, so that the requirement of water resistance of the optical fiber 20 head is met.

In this regard, as shown in fig. 3, the water quality detecting module further includes two light transmitting members 40, one of which is installed inside the second through hole 22 and the other of which is installed inside the fourth through hole 24. The spacing between the two light transmissive members 40 may be 8mm, 10mm, 15mm or other values. The material of the light-transmitting member 40 is a quartz glass material. One end of the two light-transmitting members 40 is provided with a step, and the inner walls of the second through hole 22 and the fourth through hole 24 are respectively provided with a concave ring matched with the step. A sealing ring 60 is further arranged between the step and the concave ring, so that a better sealing effect is achieved. The two light-transmitting members 40 are further pressed by pressing plates, specifically, pressing rings 50 with internal threads, which are propped against the light-transmitting members 40, are arranged on the outer sides of the second through holes 22 and the fourth through holes 24, and one end of each pressing ring 50 is provided with a step which is propped against the side wall surface of the body 10. The pressure ring 50 is screwed to the optical fiber 20. The material of the pressure ring 50 is, but not limited to, aluminum alloy material.

It will be further appreciated that in practical applications, due to the presence of impurities in the water sample to be detected, the light transmission member 40 may be covered by impurities in the water for a long time or by microorganisms growing in the accommodating cavity 32, which may affect the transmission of the light signal, thereby causing distortion of the analysis result.

In this regard, referring to fig. 4, fig. 4 is a schematic cross-sectional view of a water quality detection module according to the present embodiment. In this embodiment, a cleaning unit is further provided for the detection module, and the body 10 is provided with an air blowing opening 13 and an evacuation opening 14, and the inner side of the accommodating cavity 32 is provided with a jet head 131 above the air blowing opening 13. The arrangement of the air-blowing opening 13 and the evacuation opening 14 on the body 10 can be flexibly designed, for example, the air-blowing opening 13 is positioned on the side wall of the body 10, and the evacuation opening 14 is positioned on the lower wall surface of the body 10. The present embodiment can perform cleaning maintenance work on the light-transmitting member 40. During the cleaning process, air is supplied to the air-blowing port 13 by an external air pump, and the light-transmitting member 40 is purged by high-pressure air. Further, an access hole 81 is provided in the upper wall surface of the body 10, the access hole 81 is a threaded through hole, and a threaded plug 82 is provided above the access hole 81 on the upper wall surface of the body 10. In the process of injecting high-pressure gas into the accommodating cavity 32, the threaded plug 82 can be removed, and cleaning liquid is injected through the access hole 81, so that a better cleaning and maintenance effect can be achieved.

The water quality detection module provided by the utility model adopts an integrated design, so that the cuvette, the water sample to be detected, the optical fiber for conveying the optical signal and the cleaning unit can be concentrated on the water quality detection module, and the structure is compact. The water quality detection module provided by the utility model is applied to an instrument for water quality analysis by using hyperspectral contrast, has the advantages of simple principle, high detection accuracy, short detection time, no need of using chemical reagents and no secondary pollution, and can rapidly obtain a detection result.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a water quality testing module is applied to hyperspectral water quality testing appearance, its characterized in that includes:

The device comprises a body, wherein the upper wall of the body is provided with a placing groove for placing a cuvette inwards, one side of the placing groove is an open end, the body is provided with a first through hole which is communicated with the placing groove and is used for connecting an optical fiber, the inside of the body is provided with a containing cavity, one side of the containing cavity is an open end, the body is provided with a water inlet and a water outlet, and the body is provided with a second through hole which is communicated with the containing cavity and is used for connecting the optical fiber;

2. The water quality detection module according to claim 1, wherein one end of the two light-transmitting members is provided with a step, the inner walls of the second through hole and the fourth through hole are respectively provided with a concave ring matched with the step, the outer sides of the second through hole and the fourth through hole are respectively provided with a compression ring which props against the light-transmitting members and is provided with internal threads, and the compression rings are used for being connected with the optical fibers through threads.

3. The water quality testing module of claim 2, wherein a seal ring is disposed between the step and the recessed ring.

4. The water quality testing module of claim 1, wherein the spacing between the two light transmissive members is 10mm.

5. The water quality testing module of claim 1, wherein the interior of the receiving chamber is provided with a raised block on the path of the water sample flowing from the water inlet to the light transmissive member.

6. The water quality testing module of claim 1, wherein the body is provided with an air-blowing port and an evacuation port.

7. The water quality testing module of claim 6, wherein the air-blowing port and the water inlet are located on a side wall of the body, and the evacuation port and the water outlet are located on a lower wall surface of the body.

8. The water quality detection module of claim 6, wherein: and a jet head is arranged above the air blowing opening on the inner side of the accommodating cavity.

9. The water quality detection module of claim 1, wherein: an access hole is arranged on the upper wall surface of the body inwards.

10. The water quality testing module of claim 9, wherein the access opening is a threaded hole and the upper wall of the body is provided with a threaded plug above the access opening.