Self-cleaning circulation type turbidity meter

Abstract

The utility model relates to the technical field of water quality analysis, and discloses a self-cleaning circulation type turbidity meter, which comprises a shell, and a light-emitting unit, a detection unit, a flow cell and a circuit box which are arranged in the shell, and the light-emitting unit and the detection unit are respectively and electrically connected to the circuit box; wherein a water pump, a water inlet, a water inlet area, a foam breaker, a first overflow port, a first overflow area, a test area, a second overflow area, a second overflow port and a water outlet are arranged in the flow cell, and tested liquid sequentially passes through the water inlet, the water inlet area, the foam breaker, the first overflow port, the first overflow area, the test area, the second overflow area and the second overflow port, is cleaned by the water pump and is discharged by the water outlet. And the water is discharged from the water outlet to the turbidity meter. Therefore, the turbidity meter disclosed by the utility model not only can be used for emptying the measured liquid carrying impurities under the action of the water pump in daily use, but also can be used for cleaning more thoroughly at regular intervals; and the structure is simple, faults are not easy to generate, and new stains are not easy to generate.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality analysis, in particular to a flow-through turbidimeter with a self-cleaning function. Background Art

[0002] A flow-through turbidimeter is a device used for detecting turbidity in on-line water quality detection. Since water often carries various impurities, impurities will remain after the turbidimeter is used for a period of time, which will lead to deviation in the result of water quality analysis and affect the accuracy of the result.

[0003] The existing utility model patent one (authorization announcement number: CN217954417U, authorization announcement date: December 2, 2022) discloses a turbidimeter for water quality detection, which solves the problem that the existing turbidimeter for water quality detection does not have an automatic probe cleaning function by setting a brush, a nozzle, a motor, etc.; the existing utility model patent two (authorization announcement number: CN219425191U, authorization announcement date: July 28, 2023) discloses a self-cleaning turbidimeter analyzer, which drives the sample bottle to be cleaned to rotate and rub against the cleaning sponge through setting a water spray pipe and a cleaning sponge, etc. for synchronous wiping and cleaning on the inner and outer sides, and washes off the firmly adhered impurities to improve the cleaning effect on the inner side of the sample bottle to be cleaned.

[0004] However, the existing technical solutions often have complex structures. On the basis of the necessary turbidity analysis structure of the instrument, a series of accessories are set for cleaning; not only does it make the instrument prone to failures due to complex structures, but also the brush, sponge, etc. are extremely easy to be stained during the self-cleaning process, thus becoming new pollution sources and leading to greater deviation in the result of water quality analysis. Summary of the Invention

[0005] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is: how to make the turbidimeter have a self-cleaning function while having a simple structure and not being prone to generate or stain new stains.

[0006] To solve the above technical problem, the utility model provides a self-cleaning flow-through turbidimeter, which includes: a housing and a light emitting unit, a detection unit, a flow cell and a circuit box arranged in the housing, and the light emitting unit and the detection unit are respectively electrically connected to the circuit box; wherein,

[0007] A water pump, a water inlet, a water inlet area, an antifoamer, a first overflow port, a first overflow area, a test area, a second overflow area, a second overflow port and a drain port are arranged in the flow cell, and the liquid to be measured sequentially passes through the water inlet, the water inlet area, the antifoamer, the first overflow port, the first overflow area, the test area, the second overflow area, the second overflow port, is cleaned by the water pump, and is discharged from the drain port of the turbidimeter.

[0008] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0009] Preferably, the housing is closed and includes: an upper cover, a lower cover, a front panel housing, a sensor hole cover, and a rear cover.

[0010] Preferably, the front panel housing is a front cover facing the user, provided with a display screen and operation buttons, or provided with a touch screen.

[0011] Preferably, a groove is provided inside the front panel housing, a sealing strip is assembled in the groove, and the wiring box is provided with a boss adapted to the groove, and the groove and the boss squeeze the sealing strip.

[0012] Preferably, the sensor hole cover is detachably provided on the upper cover and has a straight-edge structure; a sensor is inserted into the sensor hole cover, and the sensor is one or a combination of a pH sensor, a temperature sensor, and an ORP electrode.

[0013] Preferably, the wiring box is a sealed space, and a circuit board is provided inside the box, and the circuit board is electrically connected to the light-emitting unit and the detection unit.

[0014] Preferably, a desiccant for absorbing water vapor inside the wiring box is also provided inside the wiring box.

[0015] Compared with the prior art, the present utility model can produce the following beneficial technical effects:

[0016] 1. The turbidimeter of the present utility model has a self-cleaning function. By setting a water pump, cooperating with an antifoaming device and multiple partitions, the circulation of water is promoted to achieve drainage after daily use and regular cleaning of the flow cell, ensuring the cleanliness of the instrument, accurate results of water quality analysis, and reducing the manual maintenance cost;

[0017] 2. The turbidimeter of the present utility model has a simple structure and is not prone to failure;

[0018] 3. The turbidimeter of the present utility model promotes the circulation of water through a water pump to achieve cleaning inside the flow cell, with good cleaning effect and not prone to generating or contaminating new stains. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1This is a schematic diagram of the external structure of the self-cleaning flow-through turbidimeter of the present utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the self-cleaning flow-through turbidimeter of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the circuit box in the present utility model.

[0023] In the attached drawings, the list of component names represented by each reference numeral is as follows:

[0024] 100: housing, 101: upper cover, 102: lower cover, 103: front panel housing, 104: sensor hole cover;

[0025] 200: light-emitting unit, 300: detection unit;

[0026] 400: flow cell, 401: water pump, 402: water inlet, 403: water inlet area, 404: defoamer, 405: first overflow port, 406: first overflow area, 407: test area, 408: second overflow area, 409: second overflow port, 410: drain port;

[0027] 500: circuit box, 501: circuit board, 502: desiccant. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figure 1 and Figure 2 as shown, wherein, Figure 1 This is a schematic diagram of the external structure of the self-cleaning flow-through turbidimeter of the present utility model, Figure 2 This is a schematic diagram of the internal structure of the self-cleaning flow-through turbidimeter of the present utility model. The turbidimeter includes a housing 100 and the following components disposed inside the housing 100: a light-emitting unit 200, a detection unit 300, a flow cell 400, and a circuit box 500. Among them, the light-emitting unit 200 and the detection unit 300 are not essential technical features for the present utility model to solve the technical problem of self-cleaning, so they will not be described in detail.

[0030] The housing 100 includes: an upper cover 101, a lower cover 102, a front panel housing 103, a sensor hole cover 104, and a rear cover (not shown in the figure). The upper cover 101, the lower cover 102, the front panel housing 103, and the rear cover are combined together to form a closed instrument housing. The front panel housing 103 is the front cover facing the user, and a display screen, operation buttons, etc. can be provided, or a touch screen can also be provided. The sensor hole cover 104 is detachably provided on the upper cover 101 and has a straight-edge structure for positioning to facilitate screw installation. A sensor can be inserted into the sensor hole cover 104, and the sensor is a combination of one or more of a pH sensor, a temperature sensor, and an ORP electrode. Preferably, a groove is provided inside the front panel housing 103, a sealing strip is assembled in the groove, and the wiring box 500 is provided with a boss adapted to the groove. The groove and the boss squeeze the sealing strip to achieve a good sealing effect.

[0031] Please refer to Figure 2 As shown, the flow cell 400 is provided with: a water pump 401, a water inlet 402, a water inlet area 403, an antifoamer 404, a first overflow port 405, a first overflow area 406, a test area 407, a second overflow area 408, a second overflow port 409, and a drain port 410. The liquid to be measured sequentially passes through the water inlet 402, the water inlet area 403, the antifoamer 404, the first overflow port 405, the first overflow area 406, the test area 407, the second overflow area 408, the second overflow port 409, is cleaned by the water pump 401, and is discharged from the drain port 410 of the flow-through turbidimeter of the present invention.

[0032] The self-cleaning flow-through turbidimeter of the present invention realizes the drainage after daily use and the regular cleaning of the flow cell by setting a water pump and cooperating with an antifoamer and multiple partitions to promote the circulation of water. Among them, the working principle of drainage after daily use is as follows:

[0033] 1) The liquid to be measured enters the water inlet area 403 from the water inlet 402;

[0034] 2) The liquid to be measured passes through the antifoamer 404, and the bubbles in the liquid are eliminated and filtered;

[0035] 3) The liquid to be measured passes through the first overflow port 405 on the inner wall of the flow cell and enters the first overflow area 406 for overflow;

[0036] 4) The liquid to be measured enters the test area 407 between the light emitting unit 200 and the detection unit 300. After the flow rate is stable, turbidity analysis and testing are carried out;

[0037] 5) The liquid to be measured enters the second overflow area 409 through the second overflow port 408 to form a flow-through measurement;

[0038] 6) The liquid to be measured carrying impurities is cleaned by the water pump 401 and discharged through the drain port 410, realizing the automatic cleaning of the flow-through turbidimeter of the present utility model.

[0039] In addition to being able to drain the liquid to be measured carrying impurities during daily use due to the action of the water pump, more thorough cleaning can also be carried out regularly; preferably, pure water and descaling agent are used for the regular thorough cleaning.

[0040] Please refer to Figure 3 As shown, it is a schematic structural diagram of the circuit box in the present utility model; the circuit box 500 is a sealed space, and a circuit board 501 and a desiccant 502 are provided inside the box. The circuit board 501 is electrically connected to the light-emitting unit and the detection unit, constituting the electrical structure of the present utility model; the desiccant 502 is used to absorb the water vapor inside the circuit box to prevent the influence of water vapor on the circuit.

[0041] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A self-cleaning flow-through turbidity meter, characterized in that: include: A housing and: a light emitting unit, a detection unit, a flow cell and a circuit box arranged in the housing, wherein the light emitting unit and the detection unit are electrically connected to the circuit box respectively; wherein, The circulation pool is provided with: a water pump, a water inlet, a water inlet area, a defoamer, a first overflow port, a first overflow area, a test area, a second overflow area, a second overflow port and a drain port. The liquid to be measured passes through the water inlet, the water inlet area, the defoamer, the first overflow port, the first overflow area, the test area, the second overflow area, the second overflow port in sequence, is cleaned by the water pump, and is discharged from the turbidity meter through the drain port.

2. The self-cleaning flow-through turbidity meter according to claim 1, characterized in that: The shell is closed and comprises an upper cover, a lower cover, a panel shell, a sensor hole cover and a rear cover.

3. The self-cleaning flow-through turbidity meter according to claim 2, characterized in that: The panel shell is a front cover facing the user and is provided with a display screen and operation buttons, or a touch screen.

4. The self-cleaning flow-through turbidity meter according to claim 3, characterized in that: A groove is provided on the inner side of the panel shell, a sealing strip is installed in the groove, and the circuit box is provided with a boss adapted to the groove, and the groove and the boss squeeze the sealing strip.

5. The self-cleaning flow-through turbidity meter according to any one of claims 2 to 4, characterized in that: The sensor hole cover is detachably arranged on the upper cover and has a straight edge structure; a sensor is inserted into the sensor hole cover, and the sensor is one or a combination of a PH sensor, a temperature sensor and an ORP electrode.

6. The self-cleaning flow-through turbidity meter according to claim 1, characterized in that: The circuit box is a sealed space, and a circuit board is arranged inside the box. The circuit board is electrically connected to the light-emitting unit and the detection unit.

7. The self-cleaning flow-through turbidity meter according to claim 6, characterized in that: The circuit box is also provided with a desiccant for absorbing water vapor inside the circuit box.

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