CN114660024A - Turbidity measuring device and turbidity monitoring system - Google Patents

Abstract

The invention discloses a turbidity measuring device and a turbidity monitoring system, and relates to the technical field of environmental monitoring. The turbidity measuring device of the present invention is arranged in a drainage sinking tank at the bottom of a filtrate tank, comprising a confluence tank, a The guide plates on opposite sides of the notch of the confluence groove, the collection cavity communicated with the side wall of the confluence groove, and the turbidity meter arranged in the collection cavity, the confluence groove is located in the drainage sink, and the first part of the guide plate The end is connected to the bottom of the filtrate tank, and the second end of the guide plate opposite to the first end is connected to the notch of the confluence tank. The guide plate can make the liquid in the filtrate tank converge and flow into the confluence tank and the collection cavity. Turbidity meters are used to measure the turbidity of the liquid flowing into the collection chamber. The turbidity measuring device provided by the invention can be applied to the occasions where the flow rate and the liquid level vary greatly or are open in the open air.

Description

A turbidity measuring device and turbidity monitoring system

technical field

The invention relates to the technical field of environmental monitoring, in particular to a turbidity measuring device and a turbidity monitoring system.

Background technique

Turbidity is a unit that expresses the degree of turbidity of a liquid, and is a measure of the decrease in the transparency of the liquid caused by insoluble substances in the reaction liquid. Through the detection of turbidity, the impurity content in the liquid and the normality of some treatment processes can be judged. In the coal washing process, the operation state of the treatment process can be monitored by measuring the turbidity of the filtrate, so the accuracy of the turbidity measurement value is particularly important.

In the prior art, a turbidity measuring instrument is usually used, and a photoelectric method is used to measure the degree of light scattering of insoluble substances in the analysis liquid, so as to measure the turbidity of the liquid. The adopted scheme is to connect the turbidity measuring device with the pipeline under pressure, and use the pressure of the liquid in the pipeline to make the liquid automatically flow into the turbidity measuring instrument for measurement. However, the slime water filtrate tank in the coal washing plant is usually open in the open air, and the liquid level changes greatly due to the large flow change. The existing turbidity measuring device is not suitable for occasions where the flow rate and liquid level change greatly, and it is difficult to measure the turbidity of the liquid in the open-air coal slime water filtrate tank.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a turbidity measuring device and a turbidity monitoring system, which can be applied to occasions where the flow rate and liquid level vary greatly or are open in the open air.

Embodiments of the present invention are implemented as follows:

A turbidity measuring device, which is arranged in a drainage sinking tank at the bottom of a filtrate tank, includes a confluence groove, guide plates arranged on opposite sides of the notch of the confluence groove, and a collection cavity communicated with the side wall of the confluence groove. and a turbidimeter arranged in the collection cavity, the confluence groove is located in the drainage sink, the first end of the guide plate is connected with the bottom of the filtrate tank, and the second end of the guide plate opposite to the first end is connected to the bottom of the filtrate tank. The notch of the confluence tank is connected, the deflector can make the liquid in the filtrate tank converge and flow into the confluence tank and the collection cavity, and the turbidity meter is used to measure the turbidity of the liquid flowing into the collection cavity.

Optionally, as an implementable manner, it also includes a side plate vertically connected to the baffle plate, the baffle plate further includes a third end located between the first end and the second end, and the third end is close to the collection cavity The side plate is located at the third end, one end of the side plate abuts against the side wall of the filtrate tank, the other end is connected to the side wall of the confluence tank, and the side of the confluence tank away from the collection cavity abuts against the side wall of the filtrate tank .

Optionally, as an implementable manner, the side wall of the confluence groove is provided with a window, the collection cavity is communicated with the confluence groove through the window, and a filter structure is arranged in the window, and the filter structure is used to prevent impurities in the liquid from entering the collection cavity. in vivo.

Optionally, as an implementable manner, it also includes a fixing component, and the fixing component includes a turbidimeter fixing tube, a turbidity meter accommodating tube, a first flange connected to one end of the turbidimeter fixing tube, and a first flange connected to the turbidimeter fixing tube. The meter accommodates the second flange at one end of the pipe, the first flange and the second flange are sealed and connected by the first bolt and the gasket arranged between the first flange and the second flange, and the turbidity meter is located in the turbidity meter Inside the accommodating tube and the output end of the turbidimeter is sealed with the turbidimeter fixing tube, the other end of the turbidimeter accommodating tube is communicated with the collection cavity, and the measuring end of the turbidimeter extends into the interior of the collection cavity to detect the inside of the collection cavity. turbidity measurement of the liquid.

Optionally, as an implementable manner, the fixing component further includes a cable sealing tube that is sealedly connected to the fixing tube of the turbidimeter, the output end of the turbidimeter is connected to the cable, and the cable is connected to the control through the cable sealing tube. The end of the cable sealing tube away from the fixed tube of the turbidimeter is provided with a sealing joint, and the sealing joint is used to seal the cable sealing tube.

Optionally, as an implementable manner, the side wall of the collection cavity is provided with a first liquid drain pipe, and the first liquid drain pipe is used to discharge the liquid in the collection cavity into the liquid drain sink.

Optionally, as an implementable manner, the first end of the deflector is connected to the bottom of the filtrate tank through a second bolt.

Optionally, as an implementable manner, the volume of the confluence groove is greater than the volume of the sampling cavity, and the overflow height of the confluence groove is higher than the highest point of the sampling cavity.

A turbidity monitoring system, which comprises a filtrate tank, a turbidity measurement device as described above in any of the filtrate tanks, and a controller connected to the turbidity measurement device, and a drainage sink is provided at the bottom of the filtrate tank, The turbidity measuring device is located in the drainage sink, and the turbidity measuring device transmits the collected turbidity information of the liquid in the filtrate tank to the controller, and the controller is used to transmit the turbidity information to the process monitor.

Optionally, as an implementable way, the side wall of the drainage sink is provided with a second drainage pipe, and the liquid in the filtrate enters the drainage sink through the turbidity measuring device and is discharged from the second drain. Liquid pipe discharge.

The beneficial effects of the embodiments of the present invention include:

The turbidity measuring device provided by the present invention is arranged in the drainage sinking tank at the bottom of the filtrate tank, and includes a confluence groove, a guide plate arranged on the opposite sides of the groove of the confluence groove, and a collector connected to the side wall of the confluence groove. The cavity and the turbidimeter arranged in the collection cavity, the confluence groove is located in the drainage sink, the first end of the guide plate is connected with the groove bottom of the filtrate tank, the second end of the guide plate opposite to the first end is connected The end is connected with the notch of the confluence tank. The deflector can make the liquid in the filtrate tank converge and flow into the confluence tank and the collection cavity. The turbidity meter is used to measure the turbidity of the liquid flowing into the collection cavity. Through the deflector and the confluence tank, the liquid in the filtrate tank is collected and then enters the collection cavity. Even when the liquid level in the filtrate tank is low or the flow rate is small, the sampling requirements can be met. When the liquid level in the filtrate tank is high Or when the flow rate is large, the liquid is more likely to enter the sampling cavity, so the above-mentioned turbidity measuring device can be applied to the occasions where the flow rate and liquid level change greatly or open in the open air.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a turbidity monitoring system provided by an embodiment of the present invention;

2 is a schematic structural diagram of a turbidity measurement device provided in an embodiment of the present invention;

3 is a cross-sectional view of a turbidity measuring device provided by an embodiment of the present invention;

FIG. 4 is a partial enlarged schematic view of B in FIG. 3 .

Icon: 100-turbidity measuring device; 110-confluence tank; 111-window; 112-filter structure; 120-deflector; 130-side plate; 140-collection chamber; 150-turbidimeter; ; 161-turbidimeter fixing tube; 162-turbidimeter accommodating tube; 163-first flange; 164-second flange; 165-first bolt; 166-gasket; 167-cable sealing tube;168 -Sealed joint; 170-Second bolt; 180-First drain; 200- Turbidity monitoring system; 210- Filtrate tank; 211-Drain sink; 220-Second drain.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the The orientation or positional relationship that the product of the invention is usually placed in use is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore It should not be construed as a limitation of the present invention. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance. The terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an integral connection. Indirect connection through an intermediary can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to FIGS. 1 and 2 , the present embodiment provides a turbidity measuring device 100 , which is disposed in a drainage sink 211 at the bottom of the filtrate tank 210 , and includes a confluence groove 110 , which is disposed on two opposite sides of the confluence groove 110 . The guide plate 120 on the side, the collection cavity 140 communicated with the side wall of the confluence groove 110, and the turbidimeter 150 arranged in the collection cavity 140. The confluence groove 110 is located in the drainage sink 211, and the guide plate 120 The first end of the guide plate 120 is connected to the bottom of the filtrate tank 210, and the second end of the baffle plate 120 opposite to the first end is connected to the notch of the confluence tank 110. The baffle plate 120 can make the liquid in the filtrate tank 210 converge. The turbidity meter 150 is used to measure the turbidity of the liquid flowing into the collecting cavity 140 , flowing into the sink 110 and the collecting cavity 140 .

The turbidity measuring device 100 is installed in the open-air filtrate tank 210 , and is used to measure the turbidity of the liquid in the filtrate tank 210 . Specifically, the bottom of the filtrate tank 210 is provided with a drainage sinker 211, and the drainage sinker 211 is located below the bottom of the filtrate tank 210, so that the filtrate tank 210 has a concave accommodation space, and the turbidity measuring device 100 installed in the accommodating space.

The turbidity measurement device 100 includes a confluence groove 110, a baffle 120, a collection cavity 140 and a turbidity meter 150. The confluence groove 110 is located in the drainage sink 211, and two opposite edges of the groove of the confluence groove 110 are respectively connected with The guide plate 120 is also fixedly connected with the bottom of the filtrate tank 210 , so that the confluence tank 110 is suspended and fixed in the drainage sink 211 . The liquid in the filtrate tank 210 enters the confluence tank 110 through the guide plate 120 , the collection cavity 140 communicates with the side wall of the confluence tank 110 , and the two form a connector structure, and the liquid entering the confluence tank 110 will further enter the collection cavity Inside 140 , a turbidity meter 150 is arranged in the collection cavity 140 , and the turbidity meter 150 measures the turbidity of the liquid to obtain the turbidity information of the liquid in the filtrate tank 210 .

It should be noted that, in this embodiment, the connection method between the guide plate 120 and the bottom of the filtrate tank 210 is not limited, as long as it can ensure that the liquid in the filtrate tank 210 can flow into the guide plate 120 . For example, the plate surface of the deflector 120 is attached to the bottom of the filtrate tank 210 and then fixed. At this time, the thickness of the deflector 120 should be as thin as possible, so as to ensure that the filtrate tank 210 can be cleaned even at a lower liquid level. liquid diversion inside.

Second, in this embodiment, the communication mode between the collection cavity 140 and the side wall of the confluence groove 110 is not limited. For example, a window 111 is provided at the lower position of the side wall of the confluence groove 110 , and the collection cavity 140 communicates with the collection cavity 140 through the window 111 . The bus trough 110 enables communication. Alternatively, the communication between the collecting cavity 140 and the collecting tank 110 is achieved through a connecting pipe.

Through the deflector 120 and the confluence tank 110, the liquid in the filtrate tank 210 is collected and then enters the collection cavity 140. Even when the liquid level in the filtrate tank 210 is low or the flow rate is small, the sampling requirements can be met. When the liquid level in 210 is high or the flow rate is large, the liquid is more likely to enter the sampling cavity, so the above-mentioned turbidity measuring device 100 can be applied to the occasions where the flow rate and liquid level change greatly or open in the open air.

Optionally, in an achievable manner of the embodiment of the present invention, the first end of the guide plate 120 is connected to the bottom of the filtrate tank 210 through the second bolt 170 . The surface of the guide plate 120 is attached to the bottom of the filtrate tank 210 , and the second bolt 170 passes through the guide plate 120 and the filtrate tank 210 in sequence to fix the guide plate 120 on the filtrate tank 210 .

Optionally, in an achievable manner of the embodiment of the present invention, the side wall of the collection cavity 140 is provided with a first liquid drain pipe 180 , and the first liquid drain pipe 180 is used to drain the liquid in the collection cavity 140 . into the drainage sink 211 . The liquid in the collection cavity 140 is discharged through the first liquid discharge pipe 180 and flows into the liquid discharge sink 211. Preferably, the first liquid discharge pipe 180 is disposed near the bottom of the collection cavity 140. The nozzle is provided with an on-off valve to control the discharge of the liquid.

Optionally, in an achievable manner of the embodiment of the present invention, a side plate 130 vertically connected to the air guide plate 120 is further included, and the air guide plate 120 further includes a third end plate located between the first end and the second end. The third end is set close to the collection cavity 140, the side plate 130 is located at the third end, one end of the side plate 130 is abutted against the side wall of the filtrate tank 210, and the other end is connected to the side wall of the confluence tank 110, and the confluence tank 110 is far away One side of the collection cavity 140 abuts against the side wall of the filtrate tank 210 .

The deflector 120 includes a first end, a second end, a third end and a fourth end, wherein the first end and the second end are oppositely disposed, the third end and the fourth end are oppositely disposed, and the third end is opposite to the fourth end The end is closer to the collection cavity 140 . The third end of the guide plate 120 is provided with a side plate 130 perpendicular to the guide plate 120 , the height of the side wall of the confluence groove 110 communicating with the collection cavity 140 is higher than the height of other side walls of the confluence groove 110 , one end of the side plate 130 It is against the side wall of the filtrate tank 210, and the other end is connected to the side wall of the confluence tank 110. The liquid in the filtrate tank 210 can only enter the filtrate tank 210 along the guide plate 120 under the interception of the side plate 130. It cannot directly enter the drainage sink 211, which can effectively improve the confluence effect. The side of the confluence tank 110 away from the collection cavity 140 abuts against the side wall of the filtrate tank 210 , which can also reduce the liquid in the filtrate tank 210 from directly flowing into the drainage sink 211 .

Referring to FIGS. 2 and 3 , optionally, in an achievable manner of the embodiment of the present invention, a window 111 is provided on the side wall of the confluence slot 110 , and the collection cavity 140 communicates with the confluence slot 110 through the window 111 . Inside 111 is a filter structure 112 , and the filter structure 112 is used to prevent impurities in the liquid from entering the collection cavity 140 .

The opening of the collecting cavity 140 is sealed with the side wall of the collecting cavity 110 provided with the window 111, and the window 111 is located in the opening area of the collecting cavity 140. In this way, the collecting cavity 140 and the collecting groove 110 are communicated with each other. . In order to allow as much liquid as possible to flow into the collection cavity 140 under the condition of low liquid level or low flow rate, preferably, the bottom edge of the window 111 extends to the bottom edge of the side wall of the collecting tank 110 . The window 111 is provided with a filter structure 112 , and the filter structure 112 can isolate large-sized particles and impurities in the liquid to prevent impurities from entering the collection cavity 140 and affect the measurement result. The filter structure 112 may be a plurality of connecting bars connected at intervals between the top edge and the bottom edge of the window 111, and the gap between two adjacent connecting bars should be smaller than the diameter of the impurities.

Optionally, in an achievable manner of the embodiment of the present invention, the volume of the confluence groove 110 is greater than the volume of the sampling cavity, and the overflow height of the confluence groove 110 is higher than the highest point of the sampling cavity. In this way, the collected liquid will more easily fill the collection cavity 140 to meet the sampling requirements.

Referring to FIGS. 3 and 4 , optionally, in an achievable manner of the embodiment of the present invention, a fixing assembly 160 is further included. The fixing assembly 160 includes a turbidimeter fixing tube 161 , a turbidimeter accommodating tube 162 , a connection A first flange 163 at one end of the turbidimeter fixing tube 161 and a second flange 164 connected at one end of the turbidimeter accommodating tube 162, the first flange 163 and the second flange 164 are arranged on the The gasket 166 between the first flange 163 and the second flange 164 is in a sealed connection, the turbidity meter 150 is located in the turbidity meter accommodating tube 162 and the output end of the turbidity meter 150 is sealedly connected with the turbidity meter fixing tube 161, The other end of the turbidimeter accommodating tube 162 is communicated with the collection cavity 140 , and the measurement end of the turbidimeter 150 extends into the collection cavity 140 to measure the turbidity of the liquid in the collection cavity 140 .

The fixing assembly 160 includes a turbidimeter fixing tube 161 and a turbidimeter accommodating tube 162 , the end of the turbidimeter fixing tube 161 is provided with a first flange 163 , and one end of the turbidimeter accommodating tube 162 is provided with a second flange 164 , add a gasket 166 between the first flange 163 and the second flange 164, and then use the first bolts 165 to fix the two, the connection between the turbidimeter fixing tube 161 and the turbidimeter accommodating tube 162 and seal. The turbidity meter 150 is located in the turbidimeter fixing tube 161 and the turbidimeter accommodating tube 162, and the output end of the turbidimeter 150 is sealedly connected with the turbidimeter fixing tube 161 to prevent the liquid in the sampling chamber 140 from passing through the turbidimeter. The accommodating tube 162 enters into the fixing tube 161 of the turbidimeter, and damages the cable connected to the output end of the turbidimeter 150 . For example, the output end of the turbidity meter 150 and the turbidity meter fixing tube 161 are sealed through a sealing thread. The top of the collection cavity 140 is provided with an opening, the turbidimeter accommodating tube 162 is fixed on the top of the collection cavity 140 and communicates with the collection cavity 140 through the opening, and the measurement end of the turbidimeter 150 extends into the interior of the collection cavity 140 through the opening Turbidity measurement is performed on the liquid in the collection chamber 140 .

Optionally, in an achievable manner of the embodiment of the present invention, the fixing component 160 further includes a cable sealing tube 167 that is sealedly connected to the turbidimeter fixing tube 161, and the output end of the turbidimeter 150 is connected to the cable, The cable is connected to the controller through a cable sealing tube 167 . The end of the cable sealing tube 167 away from the turbidimeter fixing tube 161 is provided with a sealing joint 168 , and the sealing joint 168 is used to seal the cable sealing tube 167 .

The output end of the turbidity meter 150 is connected to an external controller through a cable, so as to transmit the measured turbidity information to the outside world. One end of the cable sealing tube 167 is sealedly connected to the turbidimeter fixing tube 161, and the other end is sealed by a sealing joint 168 to ensure that the cable is in a sealed space and prevent the liquid in the filtrate tank 210 from causing damage to the cable.

For example, the included angle between the axis of the turbidimeter accommodating tube 162 and the bottom of the collection cavity 140 is 45°, and at this time, the turbidimeter 150 is at an optimal measurement angle. The included angle between the axis of the cable sealing tube 167 and the bottom of the collection cavity 140 is 90°. At this time, the turbidimeter fixing tube 161 can be an elbow, and the distance between the cable sealing tube 167 and the turbidimeter fixing tube 161 is A sealed connection is achieved by means of a thread.

Referring to FIG. 1 , an embodiment of the present invention further discloses a turbidity monitoring system 200 , which includes a filtrate tank 210 , the turbidity measurement device 100 as described above and the turbidity measurement device 100 disposed on the filtrate tank 210 . The connected controller, the bottom of the filtrate tank 210 is provided with a drainage sink 211, the turbidity measurement device 100 is located in the drainage sink 211, and the turbidity measurement device 100 collects the turbidity of the liquid in the filtrate tank 210. The information is transmitted to the controller, which is used to transmit the turbidity information to the process monitor.

The liquid in the filtrate tank 210 will flow into the drain sink tank 211 (direction A in FIG. 1 ). The guide plates 120 of the turbidity measuring device 100 are placed on both sides of the drain sink tank 211 respectively. The turbidity measurement device 100 transmits the collected turbidity information to the controller, and the main control system on the controller analyzes the turbidity information and then measures the turbidity. The information is transmitted to the process monitor, which provides a signal input for process monitoring. For example, the filtrate tank 210 is annular, and only one drainage sink 211 is provided.

The turbidity monitoring system 200 includes the same structure and benefits as the turbidity measuring device 100 in the previous embodiment. The structure and beneficial effects of the turbidity measuring device 100 have been described in detail in the foregoing embodiments, and will not be repeated here.

Optionally, in an achievable manner of the embodiment of the present invention, a second liquid drain pipe 220 is provided on the side wall of the liquid drain sink 211 , and the liquid in the filtrate tank 210 enters the liquid drain through the turbidity measuring device 100 . into the sinking tank 211 and discharged from the second liquid discharge pipe 220 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a turbidity measuring device is arranged in the drainage sinking groove at the bottom of the filtrate tank, it is characterized in that, comprises a confluence groove, the guide plate that is arranged on the opposite sides of the notch of the confluence groove, and the A collection cavity communicated with the side wall of the confluence groove and a turbidity meter arranged in the collection cavity, the confluence groove is located in the drainage sink, and the first end of the guide plate is connected to the filtrate The bottom of the tank is connected, the second end of the baffle plate opposite to the first end is connected with the notch of the confluence tank, and the baffle plate can make the liquid in the filtrate tank converge and flow into the filtrate tank. In the sink and the collection cavity, the turbidity meter is used to measure the turbidity of the liquid flowing into the collection cavity. 2 . The turbidity measuring device according to claim 1 , further comprising a side plate vertically connected to the baffle plate, the baffle plate further comprising: The third end between the ends, the third end is arranged close to the collection cavity, the side plate is located at the third end, one end of the side plate abuts against the side wall of the filtrate tank, and the other One end is connected to the side wall of the confluence groove, and the side of the confluence groove away from the collection cavity is abutted against the side wall of the filtrate groove. 3 . The turbidity measuring device according to claim 1 , wherein a window is provided on the side wall of the confluence groove, the collection cavity is communicated with the confluence groove through the window, and the window is provided with a window. 4 . There is a filter structure, and the filter structure is used to prevent impurities in the liquid from entering the collection cavity. 4 . The turbidity measuring device according to claim 1 , further comprising a fixing component, wherein the fixing component comprises a turbidimeter fixing tube, a turbidity meter accommodating tube, and one end connected to the turbidimeter fixing tube. 5 . The first flange and the second flange connected to one end of the turbidimeter accommodating tube, the first flange and the second flange are arranged on the first flange and the The sealing gasket between the second flanges is sealed and connected, the turbidity meter is located in the turbidity meter accommodating tube, and the output end of the turbidity meter is sealed and connected with the turbidity meter fixing tube, and the turbidity meter is The other end of the meter accommodating tube is communicated with the collection cavity, and the measurement end of the turbidimeter extends into the interior of the collection cavity to measure the turbidity of the liquid in the collection cavity. 5 . The turbidity measuring device according to claim 4 , wherein the fixing assembly further comprises a cable sealing tube sealingly connected with the fixing tube of the turbidity meter, and the output end of the turbidity meter is connected to the cable. 6 . The cable is connected to the controller through the cable sealing tube, and the end of the cable sealing tube away from the turbidimeter fixing tube is provided with a sealing joint, and the sealing joint is used to connect the cable to the controller. Cable gland seal. 6 . The turbidity measuring device according to claim 1 , wherein the side wall of the collection cavity is provided with a first liquid discharge pipe, and the first liquid discharge pipe is used for removing the liquid in the collection cavity. 7 . into the drainage sink. 7 . The turbidity measuring device according to claim 1 , wherein the first end of the guide plate is connected to the bottom of the filtrate tank through a second bolt. 8 . 8 . The turbidity measuring device according to claim 3 , wherein the volume of the confluence groove is larger than the volume of the sampling cavity, and the overflow height of the confluence groove is higher than the highest height of the sampling cavity. 9 . point. 9. A turbidity monitoring system, characterized in that it comprises a filtrate tank, the turbidity measuring device according to any one of claims 1 to 8 arranged on the filtrate tank, and the turbidity measuring device The connected controller, the bottom of the filtrate tank is provided with a drainage sink, the turbidity measurement device is located in the drainage sink, and the turbidity measurement device will collect the collected liquid in the filtrate tank. Turbidity information of the liquid is communicated to the controller for communicating the turbidity information to a process monitor. 10 . The turbidity monitoring system according to claim 9 , wherein a second drain pipe is provided on the side wall of the liquid drain sink, and the liquid in the filtrate tank passes through the turbidity measurement device. 11 . into the drainage sink and discharged from the second drainage pipe.

Images