CN106248438B - Sampling detection device for sewage treatment control system - Google Patents
Sampling detection device for sewage treatment control system Download PDFInfo
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- CN106248438B CN106248438B CN201610739645.6A CN201610739645A CN106248438B CN 106248438 B CN106248438 B CN 106248438B CN 201610739645 A CN201610739645 A CN 201610739645A CN 106248438 B CN106248438 B CN 106248438B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to a sampling detection device used in the field of physical and chemical treatment of printing and dyeing wastewater and in a wastewater treatment control system. The sampling detection device for the sewage treatment control system comprises a sampling water inlet pipe for connecting printing and dyeing sewage in a water supply pipeline through a sampling port, a high-pressure gas inlet pipe and a detection box for detecting the transmittance of the printing and dyeing wastewater; the output end of the sampling water inlet pipe is connected with the detection box, and the high-pressure gas inlet pipe is connected to the sampling water inlet pipe at the front side of the detection box; the detection box comprises a box body, a mud-water separator and a transmittance detector for detecting the transmittance of the printing and dyeing wastewater, wherein the mud-water separator and the transmittance detector are both positioned in the box body. The device obtains detecting water with the separation respectively of flocculent sediment, air supporting foam through mud-water separator, detects water reuse transmittance detection, and transmittance detection detects very stably accurately, can not scale deposit moreover, can not bind dirty, has improved the control stability and the accuracy of sewage, and control effect is good.
Description
Technical Field
The invention belongs to the field of sewage treatment, and particularly relates to a sampling detection device which is used in the field of dyeing sewage materialization treatment and is used in a sewage treatment control system.
Background
Aiming at the treatment problem of the printing and dyeing wastewater, the existing treatment technology mainly treats the printing and dyeing wastewater sequentially through physical and chemical treatment and biochemical treatment, so that harmful substances are degraded, and the emission standard is reached. Aiming at the current physicochemical treatment of the dyeing wastewater, the existing physicochemical treatment procedure is basically completed by manual operation of operators. Firstly, the printing and dyeing sewage is introduced into a water tank, and because the pH value of the printing and dyeing sewage is uncertain, lime is generally used for adjusting the pH value to be alkaline, and then ferrous sulfate is added for flocculating and settling the wastewater. At present, whether full flocculation occurs or not is judged according to naked eyes in the early treatment of the printing and dyeing sewage, and if the full flocculation does not occur, the problem that the adding amount of the agent occurs in the treatment process is indicated, and the agent is not adjusted in place. In general, the pH is adjusted to 9-11 to flocculate sufficiently, and the supernatant is separated by passing through a sedimentation tank.
Aiming at the problems, the Chinese patent with publication number of CN203238083U discloses printing and dyeing sewage treatment equipment capable of automatically adjusting the treatment medicine dosage, but in the actual treatment process, the domestic pH meter is inserted into the printing and dyeing sewage to be easily blocked by impurities, so that the measured value and the actual value of the pH meter have overlarge deviation, and a control system is unstable. The imported pH can only be controlled precisely temporarily, and the pH control is nonlinear, so that the pH control is difficult to maintain stable.
Of course, the chinese patent publication No. CN104034702a discloses a detection box for detecting transmittance of printing and dyeing wastewater, which not only can directly detect transmittance of the printing and dyeing wastewater entering the detection box, but also can detect light intensity signals as available control signals to express clarity of separated supernatant, thereby being used for replacing human eyes to observe whether the printing and dyeing wastewater is sufficiently flocculated. Thus, the control is changed from pH value to transmittance as control point. However, considering that the detection box disclosed in CN104034702a is easy to stain on the surfaces of the light source and the light sensing element during detection, resulting in dual reduction of transmittance and photosensitivity, after a period of use, the detection box is not very good in detection accuracy and stability, and has many problems of durability, etc., so that the disassembly and maintenance are relatively troublesome, and finally the control system is unstable.
Besides the detection box that light transmittance detected, the detection object that light transmittance detected of control system has been difficult always because the quality of water that detects the object has not been separated, often contains deposit, impurity, floccule etc. not only makes the detection box scale deposit of light transmittance influence detection easily, and deposit, impurity and floccule can also disturb the detection moreover, influence the data of light transmittance to influence control system's accuracy, the control is unstable easily appears, and control effect is poor.
The prior art is always lack of a sampling detection device capable of reasonably collecting control signals.
Disclosure of Invention
Aiming at the defects pointed out by the prior art, the invention aims to provide equipment in a sewage treatment control system, which can efficiently separate the clear water to be detected from the sampled water to be used as a detection object; meanwhile, the transmittance detector is stable and accurate in detection, scaling is avoided, and the surfaces of the light source and the light sensing element are not polluted.
In order to achieve the above object, the present invention adopts the following technical scheme:
the sampling detection device comprises a sampling water inlet pipe, a high-pressure gas inlet pipe and a detection box, wherein the sampling water inlet pipe is connected with printing and dyeing wastewater in a water supply pipeline through a sampling port, and the detection box is used for detecting the transmittance of the printing and dyeing wastewater; the output end of the sampling water inlet pipe is connected with the detection box, and the high-pressure gas inlet pipe is connected to the sampling water inlet pipe at the front side of the detection box; the detection box comprises a box body, a mud-water separator and a transmittance detector for detecting the transmittance of the printing and dyeing wastewater, wherein the mud-water separator and the transmittance detector are both positioned in the box body; the mud-water separator comprises a cylindrical separation shell and a separation core body, wherein the separation core body is wrapped in the separation shell; the top of the separation shell is also provided with a water inlet top cover, the water inlet top cover and the separation shell are hollow cylinders concentric with each other, the sampling water inlet is positioned on the side wall of the water inlet top cover, the bottom wall of the water inlet top cover is provided with a top cover water inlet, and the upper edge of an opening of the top cover water inlet is higher than the upper edge of the sampling water inlet; the lower separation plate is provided with a lower plate water filling port, and a water filling channel for communicating the top cover water filling port and the lower plate water filling port is arranged between the top cover water filling port and the lower plate water filling port; the separating core comprises a lower separating plate, an upper separating plate and a vertical plate for supporting the upper separating plate and the lower separating plate, wherein the lower separating plate and the upper separating plate are obliquely arranged in the same direction, the lower separating plate is positioned at the bottom of the separating shell, the periphery of the lower separating plate is in sealing connection with the inner wall of the separating shell, the upper end of the lower separating plate is provided with a lower plate outlet for fluid to pass upwards, the upper separating plate is positioned above the lower separating plate, the periphery of the upper separating plate is in sealing connection with the inner wall of the separating shell, the upper end of the upper separating plate is provided with a flocculent mud outlet for fluid to pass upwards, and the flocculent mud outlet is upwards arranged at the top of the separating shell; the side wall of the separation shell is also provided with a detection water outlet which is positioned between the lower end of the upper separation plate and the lower end of the lower separation plate; the side wall of the separation shell is also provided with a waste water outlet, the separation core is also provided with a drainage channel, the drainage channel communicates the waste water outlet with the flocculent mud outlet, and the waste water outlet is positioned above the lower end of the upper separation plate; the flocculent mud outlet is higher than the upper edge of the waste water outlet; the outlet of the lower plate faces upwards and is higher than the upper edge of the water outlet of the detection water; the light transmittance detector comprises a detection shell, a light source, a photosensitive receiver and a flowing multi-way pipeline for water sample circulation; the flowing multi-way pipeline comprises a water outlet pipe and a water inlet pipe, the water inlet pipe is communicated with the water outlet pipe, the water outlet pipe is a through pipe with two ends communicated, and the light emitting direction of the light source, the water outlet pipe and the photosensitive receiver are approximately on the same straight line; a first water falling gap is reserved between the light source and one end of the water outlet pipe; a second water falling gap is reserved between the photosensitive receiver and the other end of the water outlet pipe; the light of the light source penetrates through the water outlet pipe and irradiates the photosensitive receiver, a second air inlet mechanism is further arranged in the detection shell and comprises a second air inlet, a second air inlet channel and a second air outlet, the second air inlet channel is communicated with the second air inlet and the second air outlet, the second air inlet is positioned on the outer wall of the detection shell, and the second air outlet faces the outlet of the water outlet pipe; the bottom of the detection shell is also provided with a water outlet for water sample to flow out; the detection shell comprises an upper cover and a lower cover, and the flowing multi-way pipeline, the light source and the photosensitive receiver are clamped between the upper cover and the lower cover; the second air inlet mechanism is positioned in the upper cover; the upper cover is internally provided with a first air inlet mechanism, the first air inlet mechanism comprises a first air inlet, a first air inlet channel and two first air outlets, the first air inlet is respectively communicated with the two first air outlets through the first air inlet channel, and the two first air outlets are respectively positioned on one side where the light source and the photosensitive receiver are positioned; the detection box also comprises a water inlet pipe, a detection pipe, an air charging pipe, a separator waste discharge pipe and a detector waste discharge pipe for taking water samples; the sampling water inlet pipe and the high-pressure gas inlet pipe are converged and connected into the water inlet pipe, the water inlet pipe is connected with a sampling water inlet of the mud-water separator, and two ends of the detection pipe are connected between a detection water outlet of the mud-water separator and a water inlet pipe of the transmittance detector; the high-pressure gas inlet pipe is connected with a branch pipe of the gas charging pipe, the number of the gas charging pipes is two, the gas charging pipes are respectively connected with a first gas inlet and a second gas inlet of the transmittance detector, the input end of the separator waste discharge pipe is connected with a waste discharge water outlet of the separator, and the input end of the detector waste discharge pipe is connected with a water outlet of the detector; the output ends of the separator waste discharge pipe and the detector waste discharge pipe penetrate out of the box body.
Preferably, the sampling detection device further comprises a feeding pump and a feeding pump, wherein the feeding pump is arranged on the sampling water inlet pipe before the high-pressure gas inlet pipe is connected, and the feeding pump is arranged on a pipeline after the output ends of the separator waste discharge pipe and the detector waste discharge pipe are converged.
Preferably, the light source and the photosensitive receiver of the light transmittance detector are provided with fixing shells, the fixing shells are in a circular cylinder shape, the upper cover and the lower cover are provided with semicircular grooves for mounting the fixing shells, the outer side wall of the fixing shell is also provided with fixing convex ribs, and the fixing shells are clamped between the upper cover and the lower cover through the fixing convex ribs; the detection shell is internally provided with a bracket for increasing the fixing effect of the flowing multi-way pipeline, the bracket comprises a bracket and a bracket plate, a channel for water supply sample to circulate is reserved between the bracket plate and the bottom of the lower cover, the bracket is fixed with the bracket plate, the bracket plate is connected with the lower cover, the upper surface of the bracket is provided with a groove matched with the flowing multi-way pipeline in shape, and the flowing multi-way pipeline is assembled on the bracket through the groove; a pressing table corresponding to the supporting table is further arranged in the upper cover, a groove is formed in the lower surface of the pressing table, the groove is matched with the outer wall of the flowing multi-way pipeline, and the flowing multi-way pipeline is embedded in the groove between the supporting table and the pressing table; the flow multi-way pipeline also comprises a descaling pipe for the flow of the descaling agent, wherein the descaling pipe is communicated with the water outlet pipe and the water inlet pipe, and the flow multi-way pipeline is in a cross shape.
Preferably, a bucket-shaped pipeline is arranged at the joint of a water injection channel and a top cover water injection port in the mud-water separator, and the flow cross section area of the water injection channel is smaller than the caliber of the top cover water injection port; the section of the water injection channel is semicircular; the top opening of the drainage channel is communicated with the flocculent mud outlet, the middle part of the bottom wall of the water inlet top cover is provided with an overflow funnel for rapidly flowing redundant water into the drainage channel, and the overflow funnel is positioned above the opening of the drainage channel and is communicated with the inner cavity of the water inlet top cover and the drainage channel; the vertical plate is provided with an anti-breaking strip for increasing the structural strength along the edge of the axis of the separation shell; and a bridging plate for increasing structural strength is arranged between the vertical plates.
Preferably, the separation core, the separation shell and the water inlet top cover are integrally formed; the top of the water inlet top cover is provided with a cup-shaped opening, and a detachable sealing cover is arranged at the opening of the water inlet top cover.
Compared with the prior art, the invention adopts the technical scheme and has the following beneficial effects:
1. in order to obtain a better control effect, the invention mainly uses the detection water in the printing and dyeing sewage to process so as to obtain the optimal detection object, so that the invention utilizes a flocculation air floatation separation mode to obtain clear liquid without floccules. The supernatant liquid detection water is more suitable and stable instead of supernatant liquid. In order to obtain the clear liquid, the invention is provided with a mud-water separator, and high-pressure air and printing and dyeing sewage are mixed and introduced to obtain the clear liquid of the middle layer. The mud-water separator has the following advantages:
1. the lower separation plate in the separation core body of the mud-water separator enables floating matters in the water sample to be concentrated at the outlet of the lower plate, and the upper separation plate separates floating foam in the extracted water sample, so that most insoluble floating particles can be filtered; the detection water outlet is positioned between the two lower ends of the upper separation plate and the lower separation plate, when the detection water outlet extracts a water sample, the water flow filtered by the lower separation plate flows along the upper separation plate to the detection water outlet, the floating foam moves upwards along the upper separation plate under the buoyancy effect, the flow direction of the water flow is opposite to the movement direction of the floating foam, and the separation is further enhanced, so that the separation effect is more obvious.
2. The waste water outlet is communicated with the flocculent mud outlet through the water drainage channel, so that the floating foam can be timely discharged, the influence of the accumulation of the floating foam in the separation core on detection data is avoided, and the detection data is more accurate and reliable.
3. If the water flow enters the separation core body from the top, the water flow enters the separation core body to be similar to pouring water into the teacup, and the separated floating foam on the surface of the liquid can be carried into the water again, so that the separation efficiency is low. Therefore, the water inlet is positioned at the bottom of the shell, water is injected upwards from the bottom of the separation core body, the motion direction of the floating foam is always kept in the motion direction of the water flow, the motion of the floating foam is smaller, water can be rapidly separated along the separation plate, the separation efficiency is high, the speed is high, and the purpose of continuously detecting the water quality on line in real time can be achieved.
4. The upper separating plate, the lower separating plate, the drainage channel, the flocculent mud outlet and the channel for detecting water outlet and water pumping are integrated in one separating core, the outside of the separating core is wrapped with a cylindrical shell, the volume of the whole separator is effectively reduced, and the space occupation rate is effectively reduced.
2. In order to obtain a better control effect, the invention also needs a light transmittance detector, and the light transmittance detector is structurally characterized in that a light source, a water outlet pipe and a photosensitive receiver are arranged in a separated mode, so that a first water falling gap is reserved between the light source and one end of the water outlet pipe; a second water falling gap is reserved between the photosensitive receiver and the other end of the water outlet pipe; the light of the light source passes through the air in the first water falling gap, then passes through the water in the water outlet pipe, and then passes through the air in the second water falling gap, and finally is injected into the photosensitive receiver, and the structure can prevent the water column from the water outlet pipe from flowing to the light source or the photosensitive receiver, so that the light source and the photosensitive receiver are prevented from being polluted by water stains and dirt to influence the light transmission effect, and the stability and the accuracy of detection are improved; the outlet pipe is the siphunculus that both ends link up not only makes the outlet pipe be difficult to the scale deposit jam, but also reduces this transmittance detector and to the washing frequency of outlet pipe, has also prolonged transmittance detector's life simultaneously, improves the durability promptly. In addition, the high-speed air flow generated by the second air outlet can blow dirt such as viscous sludge at the outlet of the water outlet pipe, so that the dirt can move to avoid the viscous sludge from adhering to the surface of the water outlet pipe, the scaling phenomenon at the outlet of the water outlet pipe is avoided, the cleaning times are reduced, and the maintenance period is prolonged.
Drawings
Fig. 1: the embodiment of the invention provides a structural schematic diagram of a sampling detection device.
Fig. 2: the structure of the detection box in the embodiment of the invention is schematically shown.
Fig. 3: the embodiment of the invention provides an exploded schematic view of the detection box.
Fig. 4: in the embodiment of the invention, the mud-water separator is shown in a perspective view.
Fig. 5: a side cross-sectional view of the separator in an embodiment.
Fig. 6: the structure of the separator in the examples is schematically split.
Fig. 7: fig. 6 is a side cross-sectional view.
Fig. 8: the embodiment is a schematic diagram of the structure of the separation core in the separator.
Fig. 9: the embodiment is a schematic diagram of the structure of the separation core in the separator.
Fig. 10: a partial enlarged view at a in fig. 8.
Fig. 11: a partial enlarged view at B in fig. 9.
Fig. 12: in the schematic diagram of the mud-water separator in the embodiment, the flocculent mud outlet water level is higher than the suspended particle outlet.
Fig. 13: in the schematic diagram of the mud-water separator in the embodiment, the flocculent mud outlet water level is lower than the suspended particle outlet.
Fig. 14: in the embodiment, the schematic diagram of the mud-water separator is provided with an overfill water inlet.
Fig. 15: the detector in this embodiment is schematically shown.
Fig. 16: the split of the detector in this embodiment is schematically shown.
Fig. 17: the principle of the detector in this embodiment is schematically shown.
Fig. 18: in this embodiment, the structure of the inner cover of the detector is schematically shown.
Fig. 19: in this embodiment, the first and second air inlet mechanisms of the upper cover in the detector are shown in cross section.
Fig. 20: in this embodiment, the internal structure of the detector is split and schematically shown.
Fig. 21: the flow conduit in the detector of this embodiment is shown mounted on a bracket.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Examples:
as shown in FIG. 1, the whole construction diagram of the sewage treatment system of the invention adopts a novel detection method to detect whether the printing and dyeing sewage is turbid, so as to control the dosage of the printing and dyeing sewage, and the transmittance index of the treated sampling clear liquid is used as a control point, thus the invention improves the existing process and well constructs the control system on the basis of the new treatment process.
The printing and dyeing sewage belongs to one kind of sewage, and the invention mainly aims at treating the printing and dyeing sewage and does not comprise the treatment of all sewage. Of course, other wastewater that is treated in a similar manner to the printing wastewater would be suitable for use in the present system by those skilled in the art.
In order to improve the control effect, the invention provides a sampling detection device 5 which can accurately provide a control signal for a controller. Referring to fig. 1 to 21, the sampling test device 5 of the present invention includes a sampling water inlet pipe 51, a high pressure gas inlet pipe 52, and a test box 54 for testing the transmittance of printing and dyeing wastewater. The output end of the sampling water inlet pipe 51 is connected with a detection box 54, and the high-pressure gas inlet pipe 52 is connected to the sampling water inlet pipe 51 at the front side of the detection box 54.
As the detection box 54 shown in fig. 2 to 21, the detection box 54 includes a box body 5a, a mud-water separator a, and a transmittance detector b for detecting the transmittance of the printing and dyeing wastewater, both of which are located in the box body 5 a. The cassette 5a protects the separator and detector from exposure, reducing aging and extending service life.
The mud-water separator as shown in fig. 4 to 14 comprises a cylindrical separation shell a4 and a separation core a3, wherein the separation core a3 is wrapped in the separation shell a4, and a water inlet is arranged at the bottom of the separation shell a 4. The separation core a3 comprises a lower separation plate a32, an upper separation plate a33 and a vertical plate for supporting the upper separation plate and the lower separation plate, wherein the lower separation plate a32 and the upper separation plate a33 incline in the same direction, the lower separation plate a32 is positioned at the bottom of the separation shell a4, the periphery of the lower separation plate a32 is in sealing connection with the inner wall of the separation shell a4, and the upper end of the lower separation plate a32 is provided with a lower plate outlet a320 for fluid to pass upwards. The upper separation plate a33 is positioned above the lower separation plate a32, the periphery of the upper separation plate a33 is connected with the inner wall of the separation shell a4 in a sealing way, the upper end of the upper separation plate a33 is provided with a flocculent mud outlet a330 for fluid to pass upwards, and the flocculent mud outlet a330 is positioned above the separation shell a 4.
The side wall of the separation shell a4 is also provided with a detection water outlet a34, and the detection water outlet a34 is positioned between the lower end of the upper separation plate a33 and the lower end of the lower separation plate a 32.
The side wall of the separation shell a4 is also provided with a waste water outlet a35, the separation core a3 is also internally provided with a drainage channel a37, the drainage channel a37 communicates the waste water outlet a35 with the flocculent mud outlet a330, the separation core a3 is internally provided with a drainage enclosing wall a36, and the drainage enclosing wall a36 and the upper separation plate a33 jointly enclose the drainage channel a37; the waste water outlet a35 is positioned above the lower end of the upper separation plate a 33.
The top of the separation shell a4 is also provided with a water inlet top cover a2, the water inlet top cover a2 and the separation shell are hollow cylinders concentric with each other, the sampling water inlet a20 is positioned on the side wall of the water inlet top cover a2, the bottom wall of the water inlet top cover a2 is provided with a top cover water injection port a21, the lower separation plate a32 is provided with a lower plate water injection port a321, and a water injection channel a30 for communicating the top cover water injection port a21 and the lower plate water injection port a321 is arranged between the two water injection channels.
The opposite side of the flocculent mud outlet a330 is also provided with a suspended particle outlet a331, the suspended particle outlet a331 is provided with a height adjusting baffle a360 which can slide to adjust the height of the suspended particle outlet, and the height adjusting baffle a360 is used for adjusting the height and isolating the suspended particle outlet a331 from the drainage channel a37.
As shown in fig. 12 and 13, the water to be detected enters from the sampling water inlet a20 on the water inlet top cover a2, then flows out from the bottom of the separation core through the top cover water inlet a21, the water injection channel a30 and the lower plate water injection port a321 in sequence, then moves obliquely upwards along the lower separation plate a32, and as the water outlet a34 extracts water flow, the water flow is separated from the flowing direction of the floating foam through the lower plate outlet a320, the water flow enters between the upper separation plate and the lower separation plate, and the floating foam with gas continuously moves upwards to float to the floccule mud outlet a330.
The water flow extracted by the water outlet a34 still has a small amount of insoluble floating particles in the moving process, and the insoluble floating particles move along the upper separation plate a33 in the moving process to the water outlet a34, wherein the insoluble floating particles move to the flocculent mud outlet a330 along the upper separation plate a33, which is equivalent to carrying out total separation twice, thus realizing the rapid separation of the froth and the water and realizing the purpose of real-time monitoring of the water quality.
Along with the continuous injection of the water flow, the floating foam at the flocculent mud outlet a330 enters the drainage channel a37 and flows to the waste water outlet a35 along the drainage channel a37 to flow out of the detection shell.
As shown in fig. 9 and 11, the suspended particle outlet a331 is provided with a height-adjusting baffle a360, and the height-adjusting baffle a360 can control the main flow direction of the water flow, so as to control suspended substances in the water flow and control whether the suspended substances in the water flow enter a detection flow.
As shown in fig. 12, when the height of the height-adjusting baffle a360 is adjusted upward, the height of the suspended particles outlet a331 is higher than the height of the flocculent mud outlet a330, the water flows out from the flocculent mud outlet a330, the main flow direction of the water flows from the lower plate outlet a320 to the flocculent mud outlet a330, and the insoluble suspended particles and suspended particles in the water flow out from the flocculent mud outlet a330. When the detection water outlet a34 extracts a detection water sample, the extracted suspended particles are less, and the method can be used for detecting the content of soluble matters in the water sample, and can be used for detecting the transmittance of the water sample, so that whether the sewage is properly dosed and is completely flocculated is judged.
As shown in fig. 13, when the height of the height-adjusting baffle a360 is adjusted downward, the height of the suspended particle outlet a331 is lower than the height of the flocculent mud outlet a330, the water flows out from the suspended particle outlet a331, the main flow direction of the water flows from the lower plate outlet a320 through the detection water outlet a34 and flows to the suspended particle outlet a331, the insoluble suspended particles in the water flow move upward at the lower plate outlet a320 and concentrate at the flocculent mud outlet a330, and the suspended particles move along with the water flow and pass through the detection water outlet a34, and at this time, the extracted water sample contains a large amount of suspended particles, which can be used for detecting the transmittance of the water sample containing the suspended particles to determine whether the water treatment is abnormal.
The top opening of the drainage channel a37 is arranged, the opening of the drainage channel a37 is communicated with the flocculent mud outlet a330, the middle part of the bottom wall of the water inlet top cover a2 is provided with an overflow funnel a5 for rapidly flowing redundant water into the drainage channel, the overflow funnel a5 is positioned above the opening of the drainage channel a37, and the overflow funnel a5 is communicated with the inner cavity of the water inlet top cover a2 and the drainage channel a37.
As shown in fig. 13, when the sampling water inlet a20 is filled too quickly, the water filling channel a30 cannot rapidly completely feed all the water sample in the water inlet top cover a2 into the separation core, resulting in an increase in the water level of the water inlet top cover a 2. When the water level is over the overflow funnel a5, water flows from the overflow funnel a5 to the drainage channel a37, so that redundant water samples are timely discharged out of the separator, water samples are prevented from overflowing from the separator, water leakage around the water samples is avoided, and the use safety is ensured.
The top of the water inlet top cover a2 is provided with a cup-shaped opening, and the opening of the water inlet top cover a2 is provided with a detachable sealing cover a1. The sealing cover a1 can be opened and closed, and after the sealing cover a1 is opened, a user can operate the water inlet top cover a2 and objects in the separation core body (such as the overflow funnel a5, the drainage channel a37 and the like), so that the blockage can be dredged, the height of the height-adjusting baffle a360 can be adjusted, and the like.
The joint of the water injection channel a30 and the top cover water injection port a21 is provided with a bucket-shaped pipeline 300, and the flow cross section area of the water injection channel a30 is smaller than the caliber of the top cover water injection port a 21. The water injection channel a30 is semicircular in cross section.
If the flow section from the top cover water filling port a21 to the water filling channel a30 is narrowed instantaneously, sediment and the like in a water sample are very easy to block the water filling channel a30, so that the bucket-shaped pipeline a300 is additionally arranged for transition, the flow speed of the transition part of the bucket-shaped pipeline a300 is accelerated, sediment can flow rapidly, the detention phenomenon is prevented, and the blocking is avoided.
As shown in fig. 8 and 9, the side of the vertical plate along the axis of the separation housing is provided with a breaking preventing strip a42 for increasing structural strength, and by adding the breaking preventing strip a42, a triangular side is formed, so that breakage is effectively prevented. And bridging plates a41 for increasing the structural strength are arranged between the vertical plates, and the bridging plates a41 are connected with each adjacent vertical plate to enhance the connection and improve the strength. A reinforcing rib a40 for increasing the structural strength is also arranged between the vertical plate and the bottom surface of the separation shell.
The separation core a3, the separation shell a4 and the water inlet top cover a2 are integrally formed, and the separation core a3 is required to be printed through the 3D printer because the separation core a3 is complex in structure, after the integrated forming is carried out, the separation shell a4 and the water inlet top cover a2 which are connected with the separation core a3 are printed at the same time, and therefore the tightness of the separator can be effectively improved.
Referring to fig. 15 to 21, the transmittance detector b includes a detection housing, a light source b4, a photo receiver b5, and a flow multi-channel b3 through which a water sample flows. Wherein:
the flowing multi-way pipeline b3 comprises a water outlet pipe b32 and a water inlet pipe b30, the water inlet pipe b30 is communicated with the water outlet pipe b32, the water outlet pipe b32 is a through pipe with two through ends, and the light emitting direction of the light source b4, the water outlet pipe b32 and the photosensitive receiver b5 are approximately on the same straight line. A first water falling gap is reserved between the light source b4 and one end of the water outlet pipe b 32. A second water falling gap is reserved between the photosensitive receiver b5 and the other end of the water outlet pipe b 32. The light of the light source b4 penetrates through the water outlet pipe b32 and irradiates the photosensitive receiver b5, a second air inlet mechanism is further arranged in the detection shell, the second air inlet mechanism comprises a second air inlet b12, a second air inlet channel b121 and a second air outlet b120, the second air inlet channel b121 is communicated with the second air inlet b12 and the second air outlet b120, the second air inlet b12 is positioned on the outer wall of the detection shell, and the second air outlet b120 faces the outlet of the water outlet pipe b 32. The bottom of the detection shell is also provided with a water outlet b20 for water sample to flow out.
Referring to fig. 16, the detection housing includes an upper cover b1 and a lower cover b2, a flowing multi-way pipe b3, a light source b4, and a photosensitive receiver b5 are sandwiched between the upper cover b1 and the lower cover b2, the first and second air inlet mechanisms are located inside the upper cover b1, and a water outlet b20 for water sample to flow out is further provided at the bottom of the lower cover b 2. When the light transmittance detection work of the waste water transmittance is carried out, the upper cover b1 is arranged on the lower cover b2, the flowing multi-way pipeline b3, the light source b4 and the photosensitive receiver b5 are all arranged in the detection shell and are arranged on the same line, the light source b4 reacts on the photosensitive receiver b5 through sewage in the flowing multi-way pipeline b3, and the transmittance analysis is carried out so as to detect the transmittance of the printing and dyeing waste water.
When the device is used, the first air inlet mechanism and the second air inlet mechanism are both arranged above the upper cover b1 and form a certain angle with the flowing multi-way pipeline b3, high-pressure air is introduced into the first air inlet b11 and the second air inlet b12, the high-pressure air is sprayed out of the second air outlet b120 through the second air inlet channel b121, and the high-pressure air is sprayed towards the outlet of the water outlet pipe to push dirt such as silt and the like to fall by using the high-pressure air. The high-pressure gas is sprayed out from the first air outlet b110 through the first air inlet channel b111, so that the water column sprayed to the light source or the photosensitive receiver when the water pressure is too high can be downwards pressed, and the light source or the photosensitive receiver is prevented from being stained with dirt and water stains.
When the device is used, the water outlet b20 from which the common water sample flows out is arranged on the right side surface of the lower cover b2, the distance from the bottom is 10mm-15mm, and a valve is further arranged at the water outlet b20, so that the device is beneficial to discharging the printing and dyeing wastewater after the printing and dyeing wastewater is detected, and the overflow of the printing and dyeing wastewater in the detection process is avoided.
Referring to fig. 20, a descaling pipe b31 for the inflow of a descaling agent is provided on the flow multi-way pipe b3, and the descaling pipe b31 extends to the outer wall of the box body 5a through a descaling outer pipe c6 for the addition of the descaling agent. The descaling pipe b31 is communicated with the water outlet pipe b32 and the water inlet pipe b30, and the flowing multi-way pipeline b3 is cross-shaped. The cross-shaped design reduces the probability of pipe blockage. When the flowing multi-way pipeline b3 is used for a period of time and is blocked or scales are left in the pipeline, a scale remover can be introduced to remove scales, the scales in the pipeline are dissolved, the scales in the scale removing pipe b31 are pushed down by introducing high-pressure gas into the gas inlet, and the water inlet pipe b30 does not enter water when the scales are removed.
As shown in fig. 16 and 20, the light source b4 and the photosensitive receiver b5 are both provided with a fixing shell, the fixing shell is in a circular cylinder shape, the upper cover b1 and the lower cover b2 are both provided with semicircular grooves for mounting the fixing shell, the outer side wall of the fixing shell is also provided with a fixing convex rib b40 and a fixing convex rib b50, and the fixing shell is clamped in the semicircular grooves through the fixing convex rib b40 and the fixing convex rib b50 and clamped between the upper cover b1 and the lower cover b 2. The influence of shaking of the flowing multi-way pipeline b3, the light source b4 and the photosensitive receiver b5 on the detection result in the printing and dyeing sewage detection process is avoided, and the accuracy of the detection result is improved.
As shown in fig. 19, in the process of detecting the printing and dyeing wastewater, the flowing multi-way pipeline b3 is fixedly arranged on the bracket b6, the bracket b6 consists of a bracket b60 and a bracket plate b61, a water supply sample flowing channel is reserved between the bracket plate b61 and the bottom of the lower cover b2, and the channel can be arranged to incline downwards from left to right so that the printing and dyeing wastewater flows to the water outlet b20. The bracket b60 is fixed to the bracket plate b61 by welding or fastening. The frame plate b61 is connected with the lower cover b2, the upper surface of the supporting platform b60 is provided with a groove matched with the shape of the flow multi-way pipeline b3, and the flow multi-way pipeline b3 is assembled on the bracket b6 through the groove.
When the multi-channel pipeline pressing device is used, the pressing table b13 corresponding to the supporting table b60 is further arranged in the upper cover b1, the lower surface of the pressing table b13 is provided with a groove, the groove is matched with the outer wall of the multi-channel pipeline b3, and the multi-channel pipeline b3 is embedded in the groove between the supporting table b60 and the pressing table b13, so that the stability of the multi-channel pipeline b3 is guaranteed.
In the use or cleaning process, upper cover, lower cover b2 and the flow multichannel pipeline b3 on the transmittance detector that detects printing and dyeing wastewater transmittance all can be dismantled, are favorable to later stage to the detection and the washing of detector, improve transmittance detector's life, reduce the use cost of enterprise.
The detection box 54 includes, in addition to the core components of the mud-water separator a and the transmittance detector b, a water inlet pipe c1, a detection pipe c3, an air inflation pipe c4, a separator waste discharge pipe 2a and a detector waste discharge pipe 2b for taking water samples, which connect the core components of the mud-water separator a and the transmittance detector b. Wherein, the outside sampling water inlet pipe 51 and the high-pressure gas inlet pipe 52 are converged and connected to the water inlet pipe c1 of the detection box 54, the water inlet pipe c1 is connected with the sampling water inlet a20 of the mud-water separator a, and two ends of the detection pipe c3 are connected between the detection water outlet a34 of the mud-water separator a and the water inlet pipe b30 of the transmittance detector b. One branch of the high-pressure gas inlet pipe 52 is connected with two gas charging pipes c4, the gas charging pipes c4 are respectively connected with a first gas inlet b11 and a second gas inlet b12 of the transmittance detector b, the input end of the separator waste discharge pipe 2a is connected with a waste discharge water outlet a35 of the separator, and the input end of the detector waste discharge pipe 2b is connected with a water outlet b20 of the detector. The output ends of the separator discharge pipe 2a and the detector discharge pipe 2b are collected and connected to the outside of the case 5 a.
The sampling and detecting device further comprises a feeding pump 53 and a discharging pump 55, wherein the feeding pump 53 is arranged on the sampling water inlet pipe 51 before the high-pressure gas inlet pipe 52 is connected, and the discharging pump 55 is arranged on a pipeline after the output ends of the separator waste discharge pipe 2a and the detector waste discharge pipe 2b are converged. The separator waste pipe 2a and the detector waste pipe 2b may be returned to the water supply pipe by the delivery pump 55, but may be directly discharged.
As shown in fig. 12 and 17, the detection cartridge 54 according to the embodiment of the present invention operates on the principle:
1. the water sample with high-pressure gas is taken, flocculent mud is contained in the water sample, the density of the flocculent mud is smaller than that of water after wrapping bubbles, the water sample to be detected is connected into a sampling water inlet a20 of a water inlet top cover a2 through a water inlet pipe c1, the water sample sequentially passes through the sampling water inlet a20, a top cover water inlet a21, a water injection channel a30 and a lower plate water injection port a321, and the water sample flows out from the lower plate water injection port a321 to reach the bottom of a separation core a 3;
2. the water sample entering the bottom of the separation core a3 moves towards the lower plate outlet a320 under the action of water pressure, and the water sample and insoluble floaters therein move to the lower plate outlet a320 along the lower separation plate a 32;
3. the water sample and the insoluble floaters therein move from the lower plate outlet a320 to the flocculent mud outlet a330, and the insoluble floaters vertically upwards drift due to upward buoyancy;
4. the water sample is extracted from the channel between the upper separating plate and the lower separating plate through the detection water outlet a34, a small amount of insoluble floaters are contained in the extracted water sample, and as the channel between the upper separating plate and the lower separating plate is inclined downwards, the floaters continue to move upwards in the moving process of the water sample, the floaters stop moving towards the detection water outlet a34 when reaching the upper separating plate a33, and then the floaters slowly move towards the floccule mud outlet a330 along the upper separating plate a33 through buoyancy. The water sample moving direction is opposite to the froth moving direction, so that the purpose of secondary separation is achieved.
5. In the flowing process of the follow-up water sample, the water level of the floating matters concentrated at the flocculent mud outlet a330 rises to bring the floating matters into the drainage channel a37, and the floating matters entering the drainage channel flow through the waste water outlet a35, enter the separator waste water discharge pipe 2a and flow out;
6. the water sample extracted from the detection water outlet a34 of the separator a is transported to the water inlet b30 of the detector b through the detection pipe c3, and in the detector b, the water sample flows out from the outlet of the water outlet b 32;
7. the inflation tube c4 is connected with a positive pressure device such as an air pump, high-pressure gas is introduced into the second air inlet b12 and the first air inlet b11 through the inflation tube c4, the high-pressure gas is sprayed out of the second air outlet b120 through the second air inlet channel b121, the high-pressure gas is sprayed towards the outlet of the water outlet tube b32, and dirt such as sediment is pushed down by the high-pressure gas; the high-pressure gas is sprayed out from the first air outlet b110 through the first air inlet channel b111, so that water columns sprayed to the light source b4 or the photosensitive receiver b5 when the water pressure is too high can be downwards pressed, and the light source b4 or the photosensitive receiver b5 is prevented from being stained with dirt and water stains;
8. the light source b4 emits light to the water outlet pipe b32, the light completely penetrates through the water sample in the water outlet pipe b32 and irradiates the water sample on the photosensitive receiver b5, and the photosensitive receiver b5 detects the illumination intensity of the light transmitted through the water sample and calculates the transmittance of the water sample;
9. the water sample flowing out of the water outlet pipe b32 flows to the bottom of the lower cover b2 and flows out of the water outlet b20 at the bottom, and the detected water sample flows out of the waste discharge pipe 2b of the detector, so that the water quality transmittance detection process is completed.
10. The wastewater discharged from the separator a and the detector b is finally collected in the same discharge pipe c2 via the separator discharge pipe 2a and the detector discharge pipe 2b, and flows out of the case 5 a.
The foregoing description of the preferred embodiment of the invention will so fully reveal the true scope of the invention that others skilled in the art can, by applying to it, readily modify and adapt for various usages such specific embodiments without departing from the true spirit and scope of the invention.
Claims (3)
1. A sampling detection device for a sewage treatment control system is characterized in that: the sampling detection device comprises a sampling water inlet pipe (51) for connecting printing and dyeing wastewater in a water supply pipeline through a sampling port, a high-pressure gas inlet pipe (52) and a detection box (54) for detecting the transmittance of the printing and dyeing wastewater; the output end of the sampling water inlet pipe (51) is connected with the detection box (54), and the high-pressure gas inlet pipe (52) is connected to the sampling water inlet pipe (51) at the front side of the detection box (54); the detection box (54) comprises a box body (5 a), a mud-water separator (a) and a transmittance detector (b) for detecting the transmittance of the printing and dyeing wastewater, wherein the mud-water separator (a) and the transmittance detector (b) are both positioned in the box body (5 a); the mud-water separator (a) comprises a cylindrical separation shell (a 4) and a separation core (a 3), wherein the separation core (a 3) is wrapped in the separation shell (a 4); the top of the separation shell (a 4) is also provided with a water inlet top cover (a 2), the water inlet top cover (a 2) and the separation shell are hollow cylinders concentric with each other, a sampling water inlet (a 20) is positioned on the side wall of the water inlet top cover (a 2), the bottom wall of the water inlet top cover (a 2) is provided with a top cover water inlet (a 21), and the upper edge of the opening of the top cover water inlet (a 21) is higher than the upper edge of the sampling water inlet (a 20); the lower separation plate (a 32) is provided with a lower plate water filling port (a 321), and a water filling channel (a 30) for communicating the top cover water filling port (a 21) and the lower plate water filling port (a 321) is arranged between the top cover water filling port and the lower plate water filling port; the separating core body (a 3) comprises a lower separating plate (a 32), an upper separating plate (a 33) and a vertical plate for supporting the upper separating plate and the lower separating plate, wherein the lower separating plate (a 32) and the upper separating plate (a 33) are obliquely arranged in the same direction, the lower separating plate (a 32) is positioned at the bottom of the separating shell (a 4), the periphery of the lower separating plate (a 32) is in sealing connection with the inner wall of the separating shell (a 4), the upper end of the lower separating plate (a 32) is provided with a lower plate outlet (a 320) for fluid to pass upwards, the upper separating plate (a 33) is positioned above the lower separating plate (a 32), the periphery of the upper separating plate (a 33) is in sealing connection with the inner wall of the separating shell (a 4), the upper end of the upper separating plate (a 33) is provided with a flocculent mud outlet (a 330) for fluid to pass upwards, and the flocculent mud outlet (a 330) is opened upwards and positioned at the top of the separating shell (a 4); the side wall of the separation shell (a 4) is also provided with a detection water outlet (a 34), and the detection water outlet (a 34) is positioned between the lower end of the upper separation plate (a 33) and the lower end of the lower separation plate (a 32); the side wall of the separation shell (a 4) is also provided with a waste water outlet (a 35), the separation core (a 3) is also internally provided with a drainage channel (a 37), the drainage channel (a 37) is used for communicating the waste water outlet (a 35) with the flocculent mud outlet (a 330), and the waste water outlet (a 35) is positioned above the lower end of the upper separation plate (a 33); the flocculent mud outlet (a 330) is higher than the upper edge of the waste water outlet (a 35); the outlet (a 320) of the lower plate faces upwards and is higher than the upper edge of the water outlet (a 34); the light transmittance detector (b) comprises a detection shell, a light source (b 4), a photosensitive receiver (b 5) and a flowing multi-way pipeline (b 3) for water supply sample circulation; the flow multi-way pipeline (b 3) comprises a water outlet pipe (b 32) and a water inlet pipe (b 30), the water inlet pipe (b 30) is communicated with the water outlet pipe (b 32), the water outlet pipe (b 32) is a through pipe with two ends communicated, and the light emitting direction of the light source (b 4), the water outlet pipe (b 32) and the photosensitive receiver (b 5) are approximately on the same straight line; a first water falling gap is reserved between the light source (b 4) and one end of the water outlet pipe (b 32); a second water falling gap is reserved between the photosensitive receiver (b 5) and the other end of the water outlet pipe (b 32); the light of the light source (b 4) penetrates through the water outlet pipe (b 32) and irradiates the light-sensitive receiver (b 5), a second air inlet mechanism is further arranged in the detection shell, the second air inlet mechanism comprises a second air inlet (b 12), a second air inlet channel (b 121) and a second air outlet (b 120), the second air inlet channel (b 121) is communicated with the second air inlet (b 12) and the second air outlet (b 120), the second air inlet (b 12) is positioned on the outer wall of the detection shell, and the second air outlet (b 120) faces to the outlet of the water outlet pipe (b 32); the bottom of the detection shell is also provided with a water outlet (b 20) for water sample to flow out; the detection shell comprises an upper cover (b 1) and a lower cover (b 2), and the flowing multi-way pipeline (b 3), the light source (b 4) and the photosensitive receiver (b 5) are clamped between the upper cover (b 1) and the lower cover (b 2); the second air inlet mechanism is positioned in the upper cover (b 1); the upper cover (b 1) is internally provided with a first air inlet mechanism, the first air inlet mechanism comprises a first air inlet (b 11), a first air inlet channel (b 111) and two first air outlets (b 110), the first air inlet (b 11) is respectively communicated with the two first air outlets (b 110) through the first air inlet channel (b 111), and the two first air outlets (b 110) are respectively positioned at one side where the light source (b 4) and the photosensitive receiver (b 5) are positioned; the detection box (54) also comprises a water inlet pipe (c 1), a detection pipe (c 3), an air charging pipe (c 4), a separator waste discharge pipe (2 a) and a detector waste discharge pipe (2 b) for taking water samples; the sampling water inlet pipe (51) and the high-pressure gas inlet pipe (52) are converged and connected into the water inlet pipe (c 1), the water inlet pipe (c 1) is connected with the sampling water inlet (a 20) of the mud-water separator (a), and two ends of the detection pipe (c 3) are connected between the detection water outlet (a 34) of the mud-water separator (a) and the water inlet pipe (b 30) of the transmittance detector (b); a branch of the high-pressure gas inlet pipe (52) is connected with two gas charging pipes (c 4), the two gas charging pipes (c 4) are respectively connected with a first gas inlet (b 11) and a second gas inlet (b 12) of the transmittance detector (b), the input end of the separator waste discharge pipe (2 a) is connected with a waste discharge water outlet (a 35) of the separator, and the input end of the detector waste discharge pipe (2 b) is connected with a water outlet (b 20) of the detector; the output ends of the separator waste discharge pipe (2 a) and the detector waste discharge pipe (2 b) penetrate out of the box body (5 a); the sampling detection device also comprises a feeding pump (53) and a discharging pump (55), wherein the feeding pump (53) is arranged on the sampling water inlet pipe (51) before the high-pressure gas inlet pipe (52) is connected, and the discharging pump (55) is arranged on a pipeline after the output ends of the separator waste discharge pipe (2 a) and the detector waste discharge pipe (2 b) are converged; the light source (b 4) and the photosensitive receiver (b 5) of the light transmittance detector (b) are respectively provided with a fixed shell, the fixed shells are in a circular cylinder shape, the upper cover (b 1) and the lower cover (b 2) are provided with semicircular grooves for installing the fixed shells, the outer side wall of the fixed shell is also provided with fixed ribs (b 40 and b 50), and the fixed shell is clamped between the upper cover (b 1) and the lower cover (b 2) through the fixed ribs (b 40 and b 50); the detection shell is internally provided with a bracket (b 6) for increasing the fixing effect of the flow multi-way pipeline (b 3), the bracket (b 6) comprises a bracket (b 60) and a bracket plate (b 61), a channel for water supply sample circulation is reserved between the bracket plate (b 61) and the bottom of the lower cover (b 2), the bracket plate (b 60) is fixed with the bracket plate (b 61), the bracket plate (b 61) is connected with the lower cover (b 2), the upper surface of the bracket plate (b 60) is provided with a groove matched with the shape of the flow multi-way pipeline (b 3), and the flow multi-way pipeline (b 3) is assembled on the bracket (b 6) through the groove; a pressing table (b 13) corresponding to the supporting table (b 60) is further arranged in the upper cover (b 1), a groove is formed in the lower surface of the pressing table (b 13), the groove is matched with the outer wall of the flowing multi-way pipeline (b 3), and the flowing multi-way pipeline (b 3) is embedded in the groove between the supporting table (b 60) and the pressing table (b 13); the flow multi-way pipeline (b 3) further comprises a descaling pipe (b 31) for flowing in the descaling agent, the descaling pipe (b 31) is communicated with the water outlet pipe (b 32) and the water inlet pipe (b 30), and the flow multi-way pipeline (b 3) is in a cross shape.
2. The sampling test device for a wastewater treatment control system of claim 1, wherein: a bucket-shaped pipeline (a 300) is arranged at the joint of a water injection channel (a 30) and a top cover water injection port (a 21) in the mud-water separator (a), and the flow cross-sectional area of the water injection channel (a 30) is smaller than the caliber of the top cover water injection port (a 21); the section of the water injection channel (a 30) is semicircular; the top opening of the drainage channel (a 37) is arranged, the opening of the drainage channel (a 37) is communicated with the flocculent mud outlet (a 330), the middle part of the bottom wall of the water inlet top cover (a 2) is provided with an overflow funnel (a 5) for rapidly flowing redundant water into the drainage channel, the overflow funnel (a 5) is positioned above the opening of the drainage channel (a 37), and the overflow funnel (a 5) is communicated with the inner cavity of the water inlet top cover (a 2) and the drainage channel (a 37); the vertical plate is provided with an anti-breaking strip (a 42) for increasing the structural strength along the edge of the axis of the separation shell; a bridging plate (a 41) for increasing the structural strength is arranged between the vertical plates.
3. A sampling test device for a wastewater treatment control system as claimed in claim 2, wherein: the separation core body (a 3), the separation shell (a 4) and the water inlet top cover (a 2) are integrally formed; the top of the water inlet top cover (a 2) is provided with a cup-shaped opening, and a detachable sealing cover (a 1) is arranged at the opening of the water inlet top cover (a 2).
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| CN114152476B (en) * | 2022-02-10 | 2022-04-19 | 江苏净视源能源环保研究院有限公司 | Sampler for sewage detection and industrial sewage detection system |
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