CN210269610U

CN210269610U - Active sludge on-line monitoring device

Info

Publication number: CN210269610U
Application number: CN201920996751.1U
Authority: CN
Inventors: 杨丹; 白春; 钟晨; 燕增会
Original assignee: China Gezhouba Group Water Operation Co ltd; Gezhouba Water Binzhou Co ltd
Current assignee: China Gezhouba Group Water Operation Co ltd; Gezhouba Water Binzhou Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-07
Anticipated expiration: 2029-06-28

Abstract

The utility model relates to a technical field of mud monitoring, concretely relates to active sludge on-line monitoring device. Including sampling device, detection device, belt cleaning device and energy memory, sampling device includes sample storage tank and sampling probe, detection device includes the photoelectric detection ring and sets up the measuring ware in the photoelectric detection ring, the photoelectric detection ring can reciprocate along the measuring ware under actuating mechanism's drive, the data output part of photoelectric detection ring is connected with display device, the appearance liquid entry and the sample storage tank of measuring ware are connected, the washing liquid entry and the belt cleaning device of measuring ware are connected, energy memory includes vacuum energy storage tank and is used for the vacuum pump to vacuum energy storage tank evacuation, vacuum energy storage tank passes through vacuum pipeline and sample storage tank, measuring ware and belt cleaning device are connected respectively. The device can automatically sample, detect, clean and remotely monitor data, ensures the real-time monitoring of sludge, provides beneficial data for the remote diagnosis of a sewage plant, reduces the investment of field personnel and improves the working efficiency.

Description

Active sludge on-line monitoring device

Technical Field

The utility model relates to a technical field of mud monitoring, concretely relates to active sludge on-line monitoring device.

Background

The sewage treatment process is widely applied to an activated sludge method, COD, TP, TN, SS and other pollutants dissolved in water are removed through the processes of suspension mixing, adsorption contact reaction and flocculation precipitation, and finally the pollutants reach the discharge standard of urban sewage and are discharged to the environment. In the running process of a sewage treatment plant, unpredictable factors often exist to cause the quality fluctuation of inlet water, such as pollutant concentration change, component change, temperature change, toxic substance invasion and the like, and the system is even crashed because the system has adverse effect on the stable running of activated sludge. Therefore, timely grasping and controlling of the properties of the activated sludge is necessary work for process operation.

With the improvement of sewage treatment standards and the higher and higher requirements on energy consumption control, the concentration of activated sludge, the sedimentation performance of flocs and the adsorption capacity are important factors influencing the stability of the process in a sewage plant process, so that the requirement on more accurate process parameter control is met, the detail management capacity is improved, and the important node management including the frequency of sludge discharge, the adjustment of aeration quantity, the supplement of carbon sources and the like is ensured.

For large sewage plants, sufficient testing facilities and personnel need to be configured, and an experienced worker needs to perform process field inspection every 2 hours. Middle and small sewage plants and rural sewage treatment stations in recent years are difficult to meet the configuration requirements because the cost-efficiency ratio is not economical. At present, domestic sewage plants are mainly in small and medium scale, so that the exploration of remote detection and centralized diagnosis of an activated sludge system is necessary for matching with intelligent and unmanned modification.

At present, the operation management of the activated sludge method has several modes:

the first is a laboratory and laboratory technician with a well-configured sewage plant, running a team-configured experienced sewage treatment worker. The laboratory carries out the conventional inspection of mud and intake chemical examination once every day, and the operation team carries out biological pond inspection every 2 hours to the sample is observed, and the record data. Further, physicochemical indexes are measured, such as hydrolase activity, oxidoreductase activity, organic components such as nucleic acid and protein in the sludge, dehydrogenase activity, oxygen consumption rate (OUR) of the activated sludge, ATP content of the activated sludge, and the like. The method has the defect that the resources of small and medium-sized sewage plants cannot be completely configured according to requirements due to the problem of cost. Personnel and assay costs are high, and human error fluctuations are large.

The second is to install existing on-line instruments such as sludge concentration meters and sludge interface meters. The sludge concentration meter is generally arranged in a biological section, such as an anaerobic tank and an aerobic tank, and the sludge interface meter is arranged in a sedimentation tank. The method has the disadvantages that the sludge concentration meter can only reflect the instantaneous sludge suspension concentration at a certain point, and cannot reveal the integral settlement performance of the sludge and the granulation degree of the sludge; and the sedimentation tank sludge interface instrument can only reflect one sludge-water separation interface, indirectly reflects the increase of the sludge amount, and cannot accurately define the problems of sludge-water separation rate and sludge bulking. In addition, because a complete set of on-line monitoring system for sampling, detecting and cleaning is not available, data is collected only through an on-line instrument, the automation degree is low, manpower is wasted, and the efficiency is low. In addition, the existing detection equipment is immersed under water, is easy to scale and is not easy to clean, and the use is seriously influenced.

The third is to apply accurate aeration and accurate reflux control, namely an intelligent sewage treatment management system. Establishing a bioreactor model, extracting measurable parameters of dissolved oxygen concentration and suspended sludge concentration in a sewage treatment process by the current means, automatically correcting aeration quantity, digestive juice reflux and sludge reflux ratio, sludge discharge period and other means by a system, and adjusting sludge load and sludge concentration to carry out biodegradation process management. The method has the disadvantages that the current sensor detection technology is limited, firstly, only part of instantaneous data can be directly detected, but the hysteresis research on a biological reaction system is insufficient, the detection equipment means is incomplete, and the data multi-factor comprehensive analysis capability is low; secondly, the physicochemical characteristics of the biological system, such as the dehydrogenase activity of the sludge and the ATP content detection, are more complicated or have high cost, and are not easy to popularize on line. Therefore, due to the complexity of intelligent operation of the bioreactor, the system adjustment is easy to generate oscillation and repeat, and the implementation effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a to prior art's defect, provide one kind and collect the sample, detect and wash as an organic whole, and can realize that mud subsides overall process concentration gathers, the high active sludge on-line monitoring device of universality.

The utility model adopts the technical proposal that: the utility model provides an online monitoring device of activated sludge, includes sampling device, detection device, belt cleaning device and energy memory, sampling device includes the sample storage tank and is used for acquireing the sampling probe of appearance liquid with sample storage tank intercommunication, detection device includes photoelectric detection ring and the vertical measuring ware that sets up in photoelectric detection ring, photoelectric detection ring can reciprocate along measuring the ware under actuating mechanism's drive, the data output part of photoelectric detection ring is connected with display device, the appearance liquid entry that detects the ware is connected with the sample storage tank, the washing liquid entry that detects the ware is connected with belt cleaning device, energy memory includes vacuum energy storage tank and is used for the vacuum pump to vacuum energy storage tank evacuation, vacuum energy storage tank passes through the vacuum pipeline and is connected respectively with sample storage tank, measuring ware and belt cleaning device.

Preferably, the detection device further comprises a transmission rod, a positioning rod and a driving motor, wherein the transmission rod and the positioning rod are vertically arranged on one side of the detection vessel, the photoelectric detection ring penetrates through the transmission rod and the positioning rod and is horizontally arranged, and the bottom of the transmission rod is fixedly connected with the driving shaft of the driving motor in a coaxial mode.

Preferably, the photoelectric detection ring comprises a support plate, a light-emitting tube and a photoelectric receiving tube, the detection vessel is vertically arranged at the center of the horizontal support plate, the light-emitting tube and the photoelectric receiving tube are both fixed on the support plate, and the light-emitting tube and the photoelectric receiving tube are positioned at the same side of the detection vessel or at two sides of the detection vessel respectively.

Preferably, the foldable arm device comprises a foldable and extensible foldable arm device, the foldable arm device is driven by an air cylinder, the sampling probe is fixed to the end of the foldable arm device, the sampling probe is connected with a sample storage tank through a sampling pipe, and the sampling pipe is fixed to the foldable arm device.

Comparatively preferred, folding arm device includes sampling probe fixed arm, folding arm and base linking arm, folding arm both ends are articulated with sampling probe fixed arm and base linking arm tip respectively, the probe fixed arm other end and sampling probe fixed connection, the base linking arm other end is fixed through rotating base, all be equipped with between probe fixed arm and the folding arm between folding arm and the base linking arm and drive actuating cylinder, the sampling pipe is in the same direction as extending sampling probe fixed arm, folding arm and base linking arm length direction ligature on folding arm device, the rotation plane of sampling probe fixed arm is perpendicular with the rotation plane of folding arm and base linking arm.

It is comparatively preferred, belt cleaning device includes pressure energy storage tank and washing liquid storage tank, the washing liquid storage tank pass through the washing liquid pipeline respectively with the inlet intercommunication of sample storage tank and pressure energy storage tank, the liquid outlet of pressure energy storage tank passes through the washing liquid entry intercommunication of pipeline and detection ware, the pressure energy storage tank passes through vacuum pipeline and vacuum energy storage tank intercommunication.

It is comparatively preferred, the sample storage tank is equipped with along jar rotatory introduction groove of internal wall spiral setting in the bottom, the bottom in rotatory introduction groove communicates with the inlet hole of sample storage tank.

Comparatively preferred, still include the box, sampling device, detection device, belt cleaning device and energy memory all set up in the box, the front and back position of box is equipped with the access door, is located anteriorly install the touch-sensitive screen on the access door, the inside heat preservation cotton of having posted of box, the box is equipped with the vent, vent department is equipped with the shutter, install the filter screen in the shutter.

Preferably, the photoelectric detection ring is U-shaped or O-shaped;

when the photoelectric detection ring is U-shaped, the detection vessel is a square vessel matched with the U-shaped cavity of the photoelectric detection ring;

when the photoelectric detection ring is O-shaped, the detection vessel is a cylindrical vessel matched with the O-shaped cavity of the photoelectric detection ring.

Preferably, a photoelectric limiter used for limiting the highest point of the stroke of the photoelectric detection ring is arranged above the photoelectric detection ring, and the height of the photoelectric limiter is consistent with the height of sample liquid in the detection vessel.

The utility model has the advantages that:

1. the equipment can automatically carry out sampling, detection, cleaning and data remote monitoring, ensures the real-time monitoring of sludge in sewage treatment, provides beneficial data for sewage plant remote diagnosis, reduces the investment of field personnel and improves the working efficiency.

2. The folding wall device capable of rotating in the horizontal plane and the vertical plane is arranged at the sampling end, and the position of the folding wall can be adjusted by controlling the air volume of the air cylinder, so that the automatic adjustment of any position of the sampling probe is realized, and the automatic sampling is realized.

3. Utilize the photoelectric detection ring to detect the appearance liquid in the detection ware, drive the photoelectric detection ring and reciprocate along detecting the ware, can detect the sludge settling condition of different height departments in the appearance liquid, realize sludge settling whole control.

4. Adopt luminotron and photoelectric receiver to detect, to the sample liquid that concentration is low, can arrange luminotron and photoelectric receiver in and detect the ware both sides, detect through the light transmissivity, to the sample liquid that concentration is high, can arrange luminotron and photoelectric receiver in and detect the ware homonymy, detect through reflection of light nature. The detection device is suitable for sample liquid detection of all concentrations and has extremely high universality.

5. Utilize energy memory drive sample storage tank sampling, detection ware to advance a kind, belt cleaning device to wash, full automation, and can realize detecting and wash going on in step, it is efficient.

6. The main detection part of the device is different from the traditional instrument in the detected sewage, the main detection part is arranged in the dry air and separated from the sewage, and the device is provided with a self-cleaning system, thereby greatly prolonging the trouble-free running time and eliminating the damage and error influence of the traditional instrument caused by improper pollution cleaning.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a view of the detecting device of the present invention;

fig. 3 is a schematic diagram of the PLC control of the present invention.

Detailed Description

The invention will be further described in detail with reference to the drawings and the following detailed description, which are provided for the purpose of clearly understanding the invention and are not intended to limit the invention.

As shown in fig. 1, an online activated sludge monitoring device includes a detection device 1, a cleaning device 2, a sampling device 3, and an energy storage device 4.

The sampling device 3 comprises a sample storage tank 3.1 and a sampling probe 3.2 communicated with the sample storage tank 3.1 for acquiring sample liquid. The sample storage tank 3.1 is welded by a stainless steel container, a vacuumizing hole and an exhaust hole are welded on the upper part of the sample storage tank, the vacuumizing hole on the upper part is connected with a vacuum pump 4.1 through a vacuum pipeline and a valve 6.10, and is connected with a cleaning liquid tank 2.1 through a pipeline and a valve 6.9. The exhaust hole is arranged beside the vacuumizing hole, and a valve 6.11 is arranged on an exhaust pipeline of the exhaust hole. The discharge hole is used for ensuring the balance of internal and external pressure when the waste liquid in the tank is discharged. The sample storage tank 3.1 is transported by vacuum energy, so that shearing interference on sludge is reduced, and the sample introduction precision of the detection vessel is ensured; through double washing of water and gas in the filling body, the washing effect is ensured, and meanwhile, freezing accidents at low temperature are effectively prevented; and meanwhile, the vacuum energy storage tank is linked with the vacuum pump, so that the optimal power configuration and the operation efficiency of the vacuum pump are ensured. Sample storage tank 3.1 below sets up into the sample hole to be connected with sample thief probe 3.2 through the sampling pipe, the sampling hole sets up rotatory appearance groove at the tank bottoms, guarantees the sample extraction whirl state, avoids spraying. The rotary sample injection groove is a coil pipe spirally arranged along the inner wall of the tank body. And opening valves 6.15 and 6.16, starting energy storage in the vacuum energy storage tank 4.3, opening valves 6.10, 6.15, 6.12 and 6.14, and starting sampling.

The energy storage device 4 comprises a vacuum pump 4.1, a vacuum degree remote transmission meter 4.2 and a vacuum energy storage tank 4.3. The valve 6.15 and the valve 6.16 are opened, and the vacuum pump 4.1 can vacuumize the vacuum energy storage tank 4.3. The energy storage device 4 can ensure clean kinetic energy of system operation, is matched with a filter and a dehumidifier, provides kinetic energy for sampling, sample feeding and pressure water storage, and also provides power for a matched pneumatic valve (aiming at a non-electromagnetic valve system).

The detection device 1 comprises a photoelectric detection ring 1.4 and a detection vessel 1.1 vertically arranged in the photoelectric detection ring 1.4, the photoelectric detection ring 1.4 can move up and down along the detection vessel 1.1 under the driving of a driving mechanism, and the photoelectric detection mechanism is matched to scan the data of the sludge settlement layer of the sample. The detection device 1 further comprises a transmission rod 1.3, a positioning rod 1.11 and a driving motor 1.5, the transmission rod 1.3 and the positioning rod 1.11 are vertically arranged on one side of the detection dish 1.1, the photoelectric detection ring 1.4 penetrates through the transmission rod 1.3 and the positioning rod 1.11 and is horizontally arranged, and the bottom of the transmission rod 1.3 is coaxially and fixedly connected with a driving shaft of the driving motor 1.5.

The photoelectric detection ring 1.4 comprises a supporting plate, a light-emitting tube 1.10 and a photoelectric receiving tube 1.14, the detection dish 1.1 is vertically arranged at the center of the horizontal supporting plate, the light-emitting tube 1.10 and the photoelectric receiving tube 1.14 are both fixed on the supporting plate, and the light-emitting tube 1.10 and the photoelectric receiving tube 1.14 are positioned at the same side of the detection dish 1.1 or at two sides of the detection dish 1.1 respectively. The photoelectric detection ring 1.4 is U-shaped or O-shaped, and can also be used by overlapping multiple layers of rings. When the photoelectric detection ring 1.4 is U-shaped, the detection vessel 1.1 is a square vessel matched with the U-shaped cavity of the photoelectric detection ring 1.4; when the photoelectric detection ring 1.4 is O-shaped, the detection dish 1.1 is a cylindrical dish matched with the O-shaped cavity of the photoelectric detection ring 1.4. A photoelectric limiter 1.2 used for limiting the highest point of travel of the photoelectric detection ring 1.4 is arranged above the photoelectric detection ring 1.4, and the height of the photoelectric limiter 1.2 is consistent with the height of the sample liquid in the detection vessel 1.1. And a photoelectric positioning scale 1.12 is arranged below the photoelectric detection ring 1.4. Two pairs of the light emitting tube 1.10 and the photoelectric receiving tube 1.14 in the present embodiment are used. The photoelectric detection ring 1.4 issues an instruction through the microcontroller 1.8, the light-emitting tube driver 1.9 controls the light-emitting tube 1.10 to emit a light source, the light source penetrates through the detection vessel 1.1, transmitted light is received through the signal receiving processor 1.13 after the detection vessel 1.1, an optical signal is converted into a voltage signal and transmitted back to the microcontroller 1.8, and the microcontroller 1.8 sends the signal to the microcomputer processing and display system 1.7. Meanwhile, the microcontroller 1.8 uploads the data to the data processing central station 1.20 through the switch 1.19 for subsequent analysis processing. According to the concentration and the light transmittance of the detected substance, a light transmittance detection mode and a scattered light detection mode can be set, and the installation modes are respectively adjusted to be the same-side installation and different-side installation of the light source and the photosensitive detection.

The detection vessel 1.1 is made of optical glass materials, is sealed up and down and is fixed in a detection chamber, and the detection chamber is provided with a filtering, dust removing, ventilating, drying and heat insulating system. The upper end of the detection vessel 1.1 is communicated with a vacuum pipeline and a cleaning solution pipeline, a valve 6.4 is arranged on the vacuum pipeline, a valve 6.3 is arranged on the cleaning solution pipeline, and vacuum operation and cleaning solution spraying cleaning are carried out according to a program. The lower end is connected with a sample storage tank 3.1 through a sample sending pipeline, and sample conveying, cleaning solution discharging and air spraying and air inlet are carried out according to the program. The lower end is also provided with a valve 6.6 for discharging the sample liquid after the detection is finished. And opening the valve 6.4, the valve 6.16 for vacuumizing, and opening the valve 6.12, the valve 6.13 and the valve 6.5 to enable the sample liquid to be injected into the detection dish 1.1 from the bottom of the detection dish 1.1 upwards through the sample sending pipeline. In the process, air is pumped out from the upper part, and the sample is ensured to be rapidly and stably collected by adjusting the air pumping speed. After the sample is collected, the photoelectric detection ring 1.4 starts to detect. The ascending and descending speed v of the photoelectric detection ring 1.4 is 1-10mm/s, the completion is ensured within 5s, and meanwhile, the synchronous speed with the photoelectric detection data cycle ensures the accuracy and the detection frequency of the layered detection data. The photoelectric detection ring 1.4 is positioned at the position of 0 point (namely the highest point of the detection vessel), descends at a constant speed under the drive of a servo motor, and keeps moving in parallel relative to the detection vessel; when the detection ring descends to the lowest position (namely, the displacement is full scale), the detection ring moves upwards until the detection ring returns to the position of 0 point, and the detection ring reciprocates in this way. The sample is discharged and cleaned by opening the detection vessel 1.1 and discharging the valve downwards, and the discharge port is simultaneously used as a dry air inlet to pump out air and spray the dry detection vessel 1.1. Cleaning water is sprayed into the detection dish 1.1 through the upper vacuumizing port to carry out water washing. The whole process of sampling, standing and cleaning is automatically controlled. The detection vessel 1.1 is connected with the pressure energy storage tank 1.1 through a water inlet pipeline, connected with the vacuum energy storage tank 4.3 through a three-way pipeline, connected with the sample storage tank 3.2 through a sample inlet hole, and connected with the sample discharge valve 6.6 and a pipeline through the three-way pipeline.

Cleaning device 2 includes pressure energy storage tank 2.1 and washing liquid storage tank 2.2, and washing liquid storage tank 2.2 communicates with sample storage tank 3.1 and pressure energy storage tank 2.1's inlet respectively through the washing liquid pipeline, and pressure energy storage tank 2.1's liquid outlet communicates with the washing liquid entry that detects ware 1.1 through the pipeline, and pressure energy storage tank 2.1 communicates with vacuum energy storage tank 4.2 through vacuum pipeline. The pressure energy storage tank 2.1 is internally sealed by two parts, namely an upper part and a lower part, of a stainless steel container, the pressure energy storage tank is internally divided into two cabins, one cabin is a rubber vacuum sealed cabin, a pressure spring is installed at the same time, the other cabin is a rubber sealed water cabin, and the two cabins are isolated by a rubber diaphragm to ensure the maximum pressure difference of 1-2 atmospheric pressures at two sides. The stainless steel container is used as a protection mechanism of the rubber cabin, an air inlet and outlet hole and an air inlet and outlet hole are reserved, and the rubber cabin is connected with the stainless steel container through a sealing piece, so that the air tightness of the equipment is guaranteed. The volume of the container is designed to be 100-1000ml according to the requirement of the cleaning strength of the detection dish. And when the detection is finished, entering an automatic cleaning program, opening a discharge valve 6.3 of the pressure energy storage tank 2.1, and spraying the cleaning liquid into the detection dish 1.1 through pressure compression. The pressure energy storage tank 2.1 is connected with the vacuum energy storage tank 4.2, an exhaust valve 6.1 of the pressure energy storage tank 2.1 is opened, the rubber vacuum sealed cabin is vacuumized and an energy storage spring is compressed, meanwhile, the rubber sealed water cabin automatically feeds water, a water inlet valve is closed after water storage is finished, and the rubber vacuum sealed cabin is discharged into the detection vessel 1.1 under pressure after the next procedure is carried out. The pressure energy storage tank 2.1 in the embodiment can adopt EVACINCLICK water pressure booster 5474130. The cleaning liquid storage tank 2.2 comprises a miniature dissolving and stirring system which is used for helping the cleaning agent to accelerate dissolving, and a plurality of cleaning liquid storage tanks can be arranged in parallel to select acid-base and complexing agent cleaning liquid, pure water and the like for cleaning. During detection, the sample storage tank 3.1 can be cleaned by clean water, the valve 6.11 is closed, and the valves 6.2 and 6.9 are opened to clean the sample storage tank 3.1 by clean water. After being cleaned by clear water, the cleaning solution can be adopted for cleaning. And closing the valve 6.2 and the valve 6.9, opening the valve 10, closing the valve 10, opening the valves 6.7, 6.8 and 6.9, and allowing the cleaning solution in the cleaning solution storage tank 2.2 to enter the sample storage tank 3.1 through the cleaning solution pipeline to realize further deep cleaning.

Still including folding and the folding arm device 5 that extends, folding arm device 5 passes through the cylinder drive, and sampling probe 3.2 and 5 end fixing of folding arm device, sampling probe 3.2 are connected with sample storage tank 3.1 through the sampling pipe, and the sampling pipe adopts transparent PE material, inside lining fiber plastic tube, inside lining strengthening rib, and length L is confirmed according to the arm exhibition, and diameter DN20mm easily observes the pipeline pump drainage condition, and the strengthening rib guarantees that vacuum sampling operation is smooth and easy. The sampling tube is fixed on the folding arm device 5. The sampling probe 3.2 length L30cm, diameter ND20mm adopt stainless steel material processing, and one end is connected with the sampling pipe, and the oblique groove of another processing, the groove is polished smoothly, does benefit to the liquid circulation. Folding arm device 5 includes sampling probe fixed arm 5.1, folding arm 5.2 and base linking arm 5.5, folding arm 5.2 both ends are articulated with sampling probe fixed arm 5.1 and base linking arm 5.5 tip respectively, sampling probe fixed arm 5.1 other end and sampling probe 3.2 fixed connection, the base linking arm 5.5 other end is fixed through rotating base 5.4, between sampling probe fixed arm 5.1 and folding arm 5.2, all be equipped with between folding arm 5.2 and the base linking arm 5.5 and drive actuating cylinder, the sampling pipe is along extending sampling probe fixed arm 5.1, folding arm 5.2 and base linking arm 5.5 length direction ligature are on folding arm device 5, the rotation plane of sampling probe fixed arm 5.1 is perpendicular with folding arm 5.2 and the rotation plane of base linking arm 5.5. Folding arm 5.2 is last to be furnished with sampling pipe protective sheath and sampling probe 3.2 fixed bolster, installs a banding safety cover that is used for carrying out sun-proof, dustproof, anti-ice and snow to the sampling pipe on the base linking arm 5.5, when folding arm device 5 draws in, the sampling pipe can be accomodate in the safety cover completely. The sampling probe 3.2 can be replaced by a small sampling pump according to the field condition; sampling probe fixed arm 5.1 is articulated with folding arm 5.2, is fixed with cylinder 5.3 on folding arm 5.2, and swivelling joint has two connecting rods on the piston rod of cylinder 5.3, and two connecting rods are respectively with sampling probe fixed arm 5.1 and folding arm 5.2 swivelling joint, can drive two poles through cylinder 5.3 and rotate each other, and the biggest opening angle is 180 degrees. The folding arm 5.2 is hinged to the base connecting arm 5.5, the air cylinder 5.8 is fixed to the base connecting arm 5.5, the piston rod of the base connecting arm 5.5 is rotatably connected with two connecting rods, the two connecting rods are respectively rotatably connected with the folding arm 5.2 and the base connecting arm 5.5 and used for pushing the two supports to move, the maximum movement angle of the two arms is 90 degrees, and the probe is guaranteed to enter water smoothly. The folding arm device 5 can flexibly adjust the sampling point through the air cylinder 5.3, the air cylinder 5.8 and the rotating base 5.4. The air cylinder 5.3 and the air cylinder 5.8 are respectively communicated and closed by the two-position four-way valve 5.7 and the two-position four-way valve 5.10 to be pushed by a vacuum air path, and meanwhile, the pneumatic circuit can be respectively provided with a regulating valve and a filter 5.6 and a filter 5.9 to regulate the expansion and contraction rate and keep the air cylinder clean.

The sampling device 3, the detection device 1, the cleaning device 2 and the energy storage device 4 are integrated in a box body, the box body is welded by stainless steel, an access door is arranged before and after assembly, and an operation touch screen, a state indication device and the like and an operation button are arranged on a front door panel. The heat preservation cotton is pasted to the box inside, and the box ventilation part divides the shutter, installs the filter screen. Equipment fixing tail gas discharge port, waste liquid discharge port, sampling arm erection support and sampling tube hole. A temperature sensor 7.9, an electric tracing band 7.10 and a ventilation fan 7.11 are also arranged in the box body.

The whole equipment is controlled by a PLC controller 1.18, and the PLC controller 1.18 controls as shown in figure 3. The operation process of the system is as follows:

(1) the device is arranged above a measured sludge pool, a sampling arm is debugged, and a sampling position is set; electrifying to check heat dissipation, ventilation and normal operation of the mechanical arm;

(2) adding a cleaning solution, carrying out primary system cleaning, and keeping the pipeline clean;

(3) inspecting equipment pipelines and filters and related valves, and testing vacuum equipment; setting an automatic cleaning program, and checking whether the automatic operation state is normal

(4) Preparing a standard concentration suspension, setting an automatic operation state, calibrating equipment, and checking whether the operation state of the equipment is normal;

(5) after the first automatic standard liquid calibration is finished, carrying out on-site sampling detection, simultaneously carrying out laboratory comparison and correcting the equipment deviation coefficient;

(6) debugging remote communication, observing tracking data, observing fault-free running time, and observing whether the deviation of the monitoring data of the equipment and the data of the laboratory is in an acceptable range.

Details not described in this specification are within the skill of the art that are well known to those skilled in the art.

Claims

1. The utility model provides an online monitoring device of activated sludge which characterized in that: comprises a sampling device (3), a detection device (1), a cleaning device (2) and an energy storage device (4), wherein the sampling device (3) comprises a sample storage tank (3.1) and a sampling probe (3.2) communicated with the sample storage tank (3.1) and used for acquiring sample liquid, the detection device (1) comprises a photoelectric detection ring (1.4) and a detection vessel (1.1) vertically arranged in the photoelectric detection ring (1.4), the photoelectric detection ring (1.4) can move up and down along the detection vessel (1.1) under the drive of a driving mechanism, the data output end of the photoelectric detection ring (1.4) is connected with a display device, the sample liquid inlet of the detection vessel (1.1) is connected with the sample storage tank (3.1), the cleaning liquid inlet of the detection vessel (1.1) is connected with the cleaning device (2), the energy storage device (4) comprises a vacuum energy storage tank (4.2) and a vacuum pump (4.1) for vacuumizing the vacuum energy storage tank (4.2), the vacuum energy storage tank (4.2) is respectively connected with the sample storage tank (3.1), the detection vessel (1.1) and the cleaning device (2) through vacuum pipelines.

2. The activated sludge on-line monitoring device of claim 1, wherein: detection device (1) still includes transfer line (1.3), locating lever (1.11) and driving motor (1.5), equal vertical setting in detection dish (1.1) one side of transfer line (1.3) and locating lever (1.11), photoelectric detection ring (1.4) pass transfer line (1.3) and locating lever (1.11) and level setting, the coaxial fixed connection of drive shaft of transfer line (1.3) bottom and driving motor (1.5).

3. The activated sludge on-line monitoring device of claim 1, wherein: the photoelectric detection ring (1.4) comprises a supporting plate, a light emitting tube (1.10) and a photoelectric receiving tube (1.14), the detection dish (1.1) is vertically arranged at the center of the horizontal supporting plate, the light emitting tube (1.10) and the photoelectric receiving tube (1.14) are both fixed on the supporting plate, and the light emitting tube (1.10) and the photoelectric receiving tube (1.14) are positioned at the same side of the detection dish (1.1) or at two sides of the detection dish (1.1) respectively.

4. The activated sludge on-line monitoring device of claim 1, wherein: still including folding and the folding arm device (5) of extension, folding arm device (5) are through cylinder drive, sampling probe (3.2) and folding arm device (5) end fixing, sampling probe (3.2) are connected with sample storage tank (3.1) through the sampling pipe, the sampling pipe is fixed on folding arm device (5).

5. The activated sludge on-line monitoring device of claim 4, wherein: the folding arm device (5) comprises a sampling probe fixing arm (5.1), a folding arm (5.2) and a base connecting arm (5.5), two ends of the folding arm (5.2) are respectively hinged with the end parts of the sampling probe fixing arm (5.1) and the base connecting arm (5.5), the other end of the sampling probe fixing arm (5.1) is fixedly connected with a sampling probe (3.2), the other end of the base connecting arm (5.5) is fixed by a rotating base (5.4), driving cylinders are arranged between the sampling probe fixing arm (5.1) and the folding arm (5.2) and between the folding arm (5.2) and the base connecting arm (5.5), the sampling tube is bound on the folding arm device (5) along the length direction of the sampling probe fixing arm (5.1), the folding arm (5.2) and the base connecting arm (5.5), the rotation plane of the fixed arm (5.1) of the sampling probe is vertical to the rotation planes of the folding arm (5.2) and the base connecting arm (5.5).

6. The activated sludge on-line monitoring device of claim 1, wherein: cleaning device (2) are including pressure energy storage jar (2.1) and washing liquid storage tank (2.2), washing liquid storage tank (2.2) communicate with the inlet of sample storage tank (3.1) and pressure energy storage jar (2.1) respectively through the washing liquid pipeline, the liquid outlet of pressure energy storage jar (2.1) passes through the pipeline and detects the washing liquid entry intercommunication of ware (1.1), pressure energy storage jar (2.1) is through vacuum pipeline and vacuum energy storage jar (4.2) intercommunication.

7. The activated sludge on-line monitoring device of claim 1, wherein: the sample storage tank (3.1) is provided with a rotary sample injection groove which is spirally arranged along the inner wall of the tank body at the bottom, and the bottom of the rotary sample injection groove is communicated with a sample injection hole of the sample storage tank (3.1).

8. The activated sludge on-line monitoring device of claim 1, wherein: still include the box, sampling device (3), detection device (1), belt cleaning device (2) and energy memory (4) all set up in the box, the position is equipped with the access door around the box, is located anteriorly install the touch-sensitive screen on the access door, the box is inside to be posted and to keep warm cotton, the box is equipped with the vent, vent department is equipped with the shutter, install the filter screen in the shutter.

9. The activated sludge on-line monitoring device of claim 1, wherein: the photoelectric detection ring (1.4) is U-shaped or O-shaped;

when the photoelectric detection ring (1.4) is U-shaped, the detection vessel (1.1) is a square vessel matched with the U-shaped cavity of the photoelectric detection ring (1.4);

when the photoelectric detection ring (1.4) is O-shaped, the detection dish (1.1) is a cylindrical dish matched with the O-shaped cavity of the photoelectric detection ring (1.4).

10. The activated sludge on-line monitoring device of claim 1, wherein: photoelectric limiters (1.2) used for limiting the highest point of the stroke of the photoelectric detection rings (1.4) are arranged above the photoelectric detection rings (1.4), and the heights of the photoelectric limiters (1.2) are consistent with the heights of sample liquid in the detection vessels (1.1).