Water quality detection device

Abstract

The utility model belongs to the technical field of water quality detection, and discloses a water quality detection device which comprises a shell, a water quality detection module and a bubble guide piece, wherein the shell is internally provided with a detection cavity, a first end of the shell is provided with a water inlet channel communicated with the detection cavity, a second end of the shell is provided with a water outlet channel communicated with the detection cavity, at least two side walls of the shell are provided with detection windows, and a detection area is formed among all the detection windows in the detection cavity; the water quality detection module comprises a first transmitting end and a receiving end, and the first transmitting end and the receiving end are respectively arranged at two detection windows; the bubble guide piece is arranged in the detection cavity and is used for guiding bubbles entering the detection cavity out of the detection area. The water quality detection device can guide the movement of bubbles, so that the bubbles are far away from a detection area, the accuracy of a water quality detection result is improved, the structure is simple, and the cost is relatively low.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, in particular to a water quality detection device. Background Art

[0002] Water quality testing involves measuring and analyzing physical, chemical, biological, and radioactive indicators in water using a range of techniques and methods to assess water quality and environmental trends. A turbidimeter is a type of water quality testing device that measures the turbidity of a liquid by detecting the scattering or transmission of light by suspended matter. During turbidity measurement, tiny bubbles may form when the liquid is subjected to pressure release, temperature increase, or external disturbances. These bubbles can interfere with the normal transmission of light, leading to measurement errors.

[0003] Currently, traditional defoaming methods mainly include natural gravity defoaming, chemical defoaming, pressure defoaming, and mechanical defoaming. Natural gravity defoaming uses gravity to make bubbles float and dissipate, but its effect is limited under liquid flow conditions. Chemical defoaming, although effective, increases production costs and poses the risk of environmental pollution. Pressure defoaming eliminates bubbles by adjusting the liquid pressure. The operation is complex and the defoaming effect varies depending on the liquid characteristics. Mechanical defoaming uses mechanical stirring or filtering devices to remove bubbles. The effectiveness depends on the equipment design and may make the bubbles smaller, which in turn increases the difficulty of measurement.

[0004] Therefore, it is urgent to propose a water quality detection device to solve the above technical problems. Utility Model Content

[0005] The utility model provides a water quality detection device, which can guide the movement of bubbles and keep the bubbles away from the detection area, thereby improving the accuracy of water quality detection results, and has a simple structure and low cost.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Water quality testing device, including:

[0008] a housing, wherein a detection cavity is disposed within the housing, a water inlet channel communicating with the detection cavity is disposed at a first end of the housing, a water outlet channel communicating with the detection cavity is disposed at a second end of the housing, detection windows are disposed on at least two side walls of the housing, and a detection area is formed within the detection cavity between all the detection windows;

[0009] A water quality detection module includes a first transmitting end and a receiving end, wherein the first transmitting end and the receiving end are respectively arranged at two of the detection windows;

[0010] A bubble guide is provided in the detection cavity, and is used to guide bubbles entering the detection cavity to outside the detection area.

[0011] Optionally, an inclined turbulence plate is provided in the detection chamber, and the turbulence plate is arranged opposite to the water outlet of the water inlet channel. The water flow entering the detection chamber from the water outlet of the water inlet channel can be incident on the turbulence plate and splashed onto all the detection windows through the guidance of the turbulence plate.

[0012] Optionally, a corner of the turbulent plate close to the first end of the shell is arranged opposite to the water outlet of the water inlet channel.

[0013] Optionally, a window is provided on the side wall of the shell, a transparent plate is provided at the window, the window and the transparent plate form the detection window, and the transparent plate is smoothly arranged.

[0014] Optionally, a mounting bracket for mounting the first transmitting end or the receiving end is provided on a side wall of the housing, a sealing member is provided at an outer edge of the window, and the mounting bracket presses the transparent plate against the sealing member.

[0015] Optionally, the transparent plate is a quartz plate.

[0016] Optionally, the water inlet channel and the water outlet channel are both L-shaped; and / or, the water inlet channel is arranged at the bottom of the shell, and the water outlet channel is arranged at the top of the shell; and / or, the water outlet of the water inlet channel is staggered with the detection area.

[0017] Optionally, the water inlet of the water inlet channel is connected to a water inlet pipe, and the length of the water inlet pipe is greater than or equal to 1 m.

[0018] Optionally, the water quality detection module further includes a second transmitting end, and the detection windows are provided on three adjacent side walls of the shell, wherein the first transmitting end and the second transmitting end are respectively provided at two of the detection windows, and the receiving end is provided at the other detection window.

[0019] Optionally, the bubble guide is a bubble baffle arranged below the detection area, and the bubble baffle is used to block the bubbles below the detection area; or, the bubble baffle has a guide surface, and the bubble baffle guides the bubbles to the outside of the detection area through the guide surface, so that the bubbles float outside the detection area.

[0020] Optionally, a side wall of the bubble baffle is attached to a side wall of the shell having the detection window.

[0021] Optionally, the surface of the bubble baffle in contact with the bubbles is smoothly arranged.

[0022] Optionally, the bubble baffle is a flat plate, and the flat plate is arranged obliquely or horizontally; or, the bubble baffle is in a "V" shape; or, the bubble baffle is in a funnel shape.

[0023] Optionally, the bubble guide is a guide tube, one end of which is connected to the water outlet of the water inlet channel, and the other end extends to above the detection area, and the guide tube is located outside the detection area.

[0024] Beneficial effects of the utility model:

[0025] The utility model provides a water quality detection device, including a shell, a water quality detection module and a bubble guide. When the water quality detection module is working, the first transmitting end can emit light, and the light is received by the receiving end after passing through the detection area, so as to measure the turbidity or organic matter content of the liquid through the heat dissipation or transmission of the light by the suspended matter in the liquid. By setting a bubble guide to guide the bubbles entering the detection cavity to the outside of the detection area, it can be prevented that the bubbles affect the normal transmission of light, thereby improving the accuracy of the detection results. The water quality detection device adopts a bubble guiding method to avoid the influence of bubbles on the detection results. Compared with some traditional defoaming methods, it significantly improves the accuracy of the detection results, and has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 A schematic structural diagram of a water quality detection device provided in Example 1 of the present utility model;

[0028] Figure 2 This is an exploded schematic diagram of a water quality detection device provided in Example 1 of the present utility model;

[0029] Figure 3 A cross-sectional view of a water quality detection device provided in Example 1 of the present utility model;

[0030] Figure 4 A cross-sectional view of another water quality detection device provided in Example 1 of the present utility model;

[0031] Figure 5 A cross-sectional view of another water quality detection device provided in Example 1 of the present utility model;

[0032] Figure 6 This is a cross-sectional view of a water quality detection device provided in Example 2 of the present utility model.

[0033] In the picture:

[0034] 100, housing; 101, cylinder; 102, upper end cover; 103, lower end cover; 104, water inlet pipe; 105, water outlet pipe; 110, detection chamber; 120, water inlet channel; 130, water outlet channel; 140, detection window; 141, window; 142, transparent plate; 143, seal;

[0035] 200. Bubble guide; 210. Bubble baffle; 220. Guide tube; 300. Turbulence plate; 400. Mounting bracket. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0037] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0040] Example 1

[0041] This embodiment provides a water quality detection device that can guide the movement of bubbles and keep them away from the detection area, thereby improving the accuracy of water quality detection results. It also has a simple structure and low cost.

[0042] Specifically, if Figure 1-Figure 3 As shown, the water quality detection device includes a housing 100 , a water quality detection module and a bubble guide 200 .

[0043] The housing 100 includes a detection chamber 110. A water inlet channel 120 communicating with the detection chamber 110 is provided at the first end of the housing 100, and a water outlet channel 130 communicating with the detection chamber 110 is provided at the second end of the housing 100. Water to be tested is transported into the detection chamber 110 through the inlet channel and flows out through the outlet channel 130. Detection windows 140 are provided on at least two sidewalls of the housing 100, forming a detection area within the detection chamber 110 between all detection windows 140. The water quality detection module includes a first transmitting end and a receiving end, and uses these first transmitting end and the receiving end to detect the water quality within the detection area. A bubble guide 200 is provided within the detection chamber 110 to guide bubbles entering the detection chamber 110 out of the detection area. By providing the bubble guide 200 to guide bubbles entering the detection chamber 110 out of the detection area, bubbles are prevented from interfering with the normal transmission of light emitted by the first transmitting end, thereby improving the accuracy of the detection results. The water quality detection device adopts a bubble-guiding method to avoid the influence of bubbles on the detection results. Compared with some traditional defoaming methods, it significantly improves the accuracy of the detection results, and has a simple structure and low cost.

[0044] It is understandable that if the two detection windows 140 are arranged opposite to each other, the detection area is Figure 3 The area shown in the dotted box.

[0045] Optionally, the first emitting end can emit an infrared light source for detecting the turbidity of water. In this configuration, two detection windows 140 can be provided, and the two detection windows 140 can be provided on two adjacent side walls of the housing 100 .

[0046] Furthermore, the water quality detection device may also include a second transmitting end that can emit ultraviolet light for detecting organic matter in water. With this arrangement, detection windows 140 are provided on three adjacent side walls of the housing 100, two of which are provided with a first transmitting end and a second transmitting end, respectively, and another detecting window 140 is provided with a receiving end. When the second transmitting end is used to detect organic matter in water, the second transmitting end needs to be positioned opposite the receiving end.

[0047] Further, see Figure 2 A window 141 is provided on the side wall of the housing 100. A transparent plate 142 is sealed against the window 141. Window 141 and transparent plate 142 form a detection window 140. Furthermore, transparent plate 142 is smooth. Using a smooth transparent plate 142 to form detection window 140 reduces the effect of light refraction compared to conventional quartz tube solutions, reducing the impact of stray light on test results and thereby improving the accuracy of water quality test results. Alternatively, transparent plate 142 may be a quartz plate.

[0048] Optionally, continue with Figure 1 and Figure 2 In this embodiment, a mounting bracket 400 for mounting the first transmitting end or receiving end is provided on the side wall of the housing 100. A sealing member 143 is provided at the outer edge of the window 141. The mounting bracket 400 presses the transparent plate 142 against the sealing member 143. The mounting bracket 400 and the sealing member 143 achieve a sealed seal between the transparent plate 142 and the window 141, providing excellent sealing performance, a simple structure, and convenient installation and removal.

[0049] Optionally, an annular groove for mounting the sealing member 143 may be provided at the outer edge of the window 141 to improve the mounting strength of the sealing member 143 .

[0050] Optionally, the mounting bracket 400 may be connected to the side wall of the housing 100 by bolt connection, or may be connected to the side wall of the housing 100 by other means, and may be configured according to actual needs, and this application does not make any specific limitations.

[0051] In this embodiment, mounting brackets 400 are provided on the sidewalls of the housing 100 where the detection window 140 is provided. Through holes can be provided on the mounting brackets 400, and the first transmitting end or the receiving end is opposite to the detection window 140 through the through holes to facilitate emitting or receiving light.

[0052] Furthermore, the water inlet channel 120 and the water outlet channel 130 can both be L-shaped. Such an arrangement makes the water inlet direction of the water inlet channel 120 perpendicular to the water outlet direction, and the water inlet direction of the water outlet channel 130 also perpendicular to the water outlet direction, so as to achieve the purpose of turbulent flow of the water in the detection cavity 110, and carry away the bubbles hanging on the detection window 140 through turbulence, so as to avoid the bubbles attached to the detection window 140 affecting the results of water quality detection, thereby improving the accuracy of the detection results.

[0053] Furthermore, the water inlet channel 120 may be disposed at the bottom of the housing 100 , and the water outlet channel 130 may be disposed at the top of the housing 100 . This arrangement allows bubbles to be better discharged from the detection cavity 110 by floating upward.

[0054] Furthermore, the water outlet of the water inlet channel 120 can be staggered with the detection area. In this way, when the bubbles generated after the water flow in the water inlet channel 120 stops suddenly enter the detection cavity 110 from the water outlet of the water inlet channel 120, they will generally rise directly in the vertical direction. The rising path will not enter the detection area, thereby reducing the risk of bubbles entering the detection area and affecting the detection results after the water flow stops suddenly.

[0055] Further, see Figure 3 The detection chamber 110 is equipped with an inclined turbulence plate 300, which is positioned opposite the outlet of the water inlet channel 120. Water entering the detection chamber 110 from the outlet of the water inlet channel 120 is incident on the turbulence plate 300 and, guided by the turbulence plate 300, splashes onto all detection windows 140. The turbulence plate 300 redirects the water flow, flushing the detection windows 140 and removing any bubbles adhering to them, thereby improving the accuracy of water quality test results. The turbulence plate 300 also features a simple structure and low cost.

[0056] Optionally, a corner of the turbulence plate 300 near the first end of the housing 100 is disposed opposite the water outlet of the water inlet channel 120. This arrangement allows the water flowing into the detection cavity 110 from the water outlet of the water inlet channel 120 to be directly sprayed onto the corner of the turbulence plate 300, resulting in a better turbulent flow effect.

[0057] Furthermore, the water inlet of the water inlet channel 120 is connected to the water inlet pipe 104, and the length of the water inlet pipe 104 is greater than or equal to 1 meter. With this arrangement, when the water flow into the detection chamber is suddenly stopped, most of the bubbles generated will remain in the water inlet pipe 104, reducing the number of bubbles entering the detection chamber 110, which helps reduce the impact of bubbles on the detection results and thus improves the accuracy of the detection results.

[0058] Optionally, a water outlet pipe 105 may be provided at the water outlet of the water outlet channel 130 , and the water to be tested is transported into the testing cavity 110 through the water inlet pipe 104 and discharged through the water outlet pipe 105 .

[0059] Optionally, continue with Figure 3 The shell 100 includes a cylinder 101, which has a detection cavity 110. The two ends of the cylinder 101 are sealed by an upper end cover 102 and a lower end cover 103. The water inlet channel 120 is provided on the lower end cover 103, and the water outlet channel 130 is provided on the upper end cover 102.

[0060] Furthermore, in one possible embodiment, the upper end cover 102 and the cylinder 101, as well as the lower end cover 103 and the cylinder 101, can be connected by bolts. The bolt connection structure is simple and easy to install and remove. In addition, a sealing ring is provided between the upper end cover 102 and the cylinder 101 for sealing, and a sealing ring is provided between the lower end cover 103 and the cylinder 101 for sealing.

[0061] Further, see Figure 3 The bubble guide 200 is a bubble baffle 210 disposed below the detection area. Bubble baffle 210 is used to block bubbles below the detection area. Alternatively, bubble baffle 210 has a guide surface that guides bubbles out of the detection area, causing them to float upward. This bubble guide 200 has a simple structure, is easy to manufacture, and is relatively low in cost.

[0062] Furthermore, one side wall of the bubble baffle 210 is attached to the side wall of the housing 100 having the detection window 140. This arrangement can prevent bubbles from rising through the gap between the bubble baffle 210 and the side wall of the housing 100 having the detection window 140 and passing through the detection window 140, thereby affecting the detection results.

[0063] Optionally, the surface of the bubble baffle 210 that contacts the bubbles is smooth, so that the bubbles can eventually escape from the bubble baffle 210 and be discharged from the detection cavity 110 .

[0064] Optionally, continue with Figure 3 In one possible embodiment, the bubble baffle 210 is a flat plate that can be positioned horizontally. In this case, the plate can block bubbles below the detection area, preventing them from floating upward and affecting the propagation of the detection light of the water quality detection module. The plate can also be tilted. In this case, the lower surface of the plate serves as a guide surface, which guides the bubbles in the upward direction, causing them to float outside the detection area.

[0065] Alternatively, as Figure 4As shown, in another possible embodiment, the bubble baffle 210 may also be funnel-shaped. In this configuration, the outer peripheral surfaces of the bubble baffle 210 are all guide surfaces.

[0066] Alternatively, as Figure 5 As shown, in yet another possible embodiment, the bubble baffle 210 may also be in a “V” shape.

[0067] It is understandable that the shape of the bubble baffle 210 can be set according to actual needs and is not specifically limited in this application.

[0068] Example 2

[0069] This embodiment provides a water quality detection device, which is substantially the same in structure as the first embodiment, and is only improved on the basis of the first embodiment. Therefore, only the differences between the two are described here, and the structures of this embodiment and the first embodiment that are the same are not repeated here.

[0070] Specifically, if Figure 6 As shown, in this embodiment, the bubble guide 200 is a guide tube 220. One end of the guide tube 220 is connected to the water outlet of the water inlet channel 120, and the other end extends above the detection area. The guide tube 220 is located outside the detection area. This arrangement ensures that bubbles entering through the water inlet channel 120 are always guided away from the detection area by the guide tube 220, effectively eliminating bubbles in the detection area and improving the accuracy of water quality test results.

[0071] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A water quality detection device, characterized in that: include: A housing (100), wherein a detection cavity (110) is provided in the housing (100), a water inlet channel (120) communicating with the detection cavity (110) is provided at a first end of the housing (100), a water outlet channel (130) communicating with the detection cavity (110) is provided at a second end of the housing (100), detection windows (140) are provided on at least two side walls of the housing (100), and a detection area is formed between all the detection windows (140) in the detection cavity (110); A water quality detection module comprises a first transmitting end and a receiving end, wherein the first transmitting end and the receiving end are respectively arranged at two of the detection windows (140); A bubble guide (200) is provided in the detection cavity (110), and the bubble guide (200) is used to guide bubbles entering the detection cavity (110) to outside the detection area.

2. The water quality detection device according to claim 1, characterized in that: An inclined turbulence plate (300) is provided in the detection cavity (110), and the turbulence plate (300) is arranged opposite to the water outlet of the water inlet channel (120). Water flow entering the detection cavity (110) from the water outlet of the water inlet channel (120) can be incident on the turbulence plate (300) and splashed onto all the detection windows (140) through the guidance of the turbulence plate (300).

3. The water quality detection device according to claim 2, characterized in that: A corner of the turbulence plate (300) close to the first end of the housing (100) is arranged opposite to the water outlet of the water inlet channel (120).

4. The water quality detection device according to claim 1, characterized in that: A window (141) is provided on the side wall of the housing (100), a transparent plate (142) is provided at the window (141), the window (141) and the transparent plate (142) form the detection window (140), and the transparent plate (142) is smoothly arranged.

5. The water quality detection device according to claim 4, characterized in that: A mounting frame (400) for mounting the first transmitting end or the receiving end is provided on the side wall of the housing (100), a sealing member (143) is provided at the outer edge of the window (141), and the mounting frame (400) presses the transparent plate (142) against the sealing member (143).

6. The water quality detection device according to claim 4, characterized in that: The transparent plate (142) is a quartz plate.

7. The water quality detection device according to claim 1, characterized in that: The water inlet channel (120) and the water outlet channel (130) are both L-shaped; And / or, the water inlet channel (120) is provided at the bottom of the housing (100), and the water outlet channel (130) is provided at the top of the housing (100); And / or, the water outlet of the water inlet channel (120) is staggered with the detection area.

8. The water quality detection device according to claim 1, characterized in that: The water inlet of the water inlet channel (120) is in communication with the water inlet pipe (104), and the length of the water inlet pipe (104) is greater than or equal to 1 m.

9. The water quality detection device according to claim 1, characterized in that: The water quality detection module further comprises a second transmitting end, and the detection windows (140) are provided on three adjacent side walls of the housing (100), wherein the first transmitting end and the second transmitting end are provided at two of the detection windows (140), respectively, and the receiving end is provided at the other detection window (140).

10. The water quality detection device according to any one of claims 1 to 9, characterized in that: The bubble guide (200) is a bubble baffle (210) arranged below the detection area, and the bubble baffle (210) is used to block bubbles below the detection area; or, the bubble baffle (210) has a guide surface, and the bubble baffle (210) guides bubbles to the outside of the detection area through the guide surface, so that the bubbles float outside the detection area.

11. The water quality detection device according to claim 10, characterized in that: One side wall of the bubble baffle (210) is attached to a side wall of the housing (100) having the detection window (140).

12. The water quality detection device according to claim 10, characterized in that: The bubble baffle (210) is configured to have a smooth surface in contact with the bubbles.

13. The water quality detection device according to claim 10, characterized in that: The bubble baffle (210) is a flat plate, and the flat plate is arranged obliquely or horizontally; Alternatively, the bubble baffle (210) is in a "V" shape; Alternatively, the bubble baffle (210) is funnel-shaped.

14. The water quality detection device according to any one of claims 1 to 9, characterized in that: The bubble guide (200) is a guide tube (220), one end of which is connected to the water outlet of the water inlet channel (120), and the other end of which extends above the detection area, and the guide tube (220) is located outside the detection area.

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