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Manufacturing method of pollutant detection device for drinking water source based on gradient sampling

发布日期:2020-01-07 13:11 Document serial number: 19641799 Release date: 2020-01-07 13:11
Manufacturing method of pollutant detection device for drinking water source based on gradient sampling

The invention belongs to the technical field of water quality detection equipment, and particularly relates to a pollutant detection device for drinking water sources based on gradient sampling.



Background technique:

Water is one of the most common substances on the earth. It is an important resource for the survival of all life, including inorganic compounds and human beings. It is also the most important part of organisms. Water has played an important role in the evolution of life. It is a narrow sense. Non-renewable, general renewable resources.

At present, the forms of surface water and groundwater pollution are still severe. In addition to conventional pollutants, toxic and harmful new pollutants represented by drug residues, personal care products, endocrine disruptors, disinfection by-products, etc. are continuously detected in drinking water source water bodies. This poses a serious threat to drinking water safety. And drinking water safety is directly related to the vital interests of every resident. It is a top priority for ensuring the health of the people and one of the biggest livelihood issues. Aiming at how to measure the safety level of water quality, researchers have developed a variety of instruments and equipment for detecting pollutants in water, as well as online monitoring and early warning systems. Some economically developed regions have successively installed pollutant detection equipment at water sources, and some drinking water plants that have the conditions have also begun to install detection equipment at raw water quality monitoring points to detect pollutants in water.

However, the existing water source pollutant detection devices have the following defects: 1) When sampling water bodies, only the water bodies on the surface layer of the water source are sampled, and the water layers that cannot be deep can not be sampled and tested separately, which causes a large deviation in the measurement results. The measurement results are inaccurate; 2) Multiple sets of sampling and testing processes are not performed simultaneously to reduce work efficiency; 3) After the testing is completed, the device does not have drying elements, which damps the internal electrical components and reduces the service life of the device.



Technical realization elements:

Aiming at the problems mentioned above, the present invention provides a gradient-sampling-based drinking water source pollution detection device based on reliable sampling, accurate detection, and intelligent integration.

The invention provides a gradient water sampling-based pollutant detection device for drinking water sources, which mainly includes a detection body, a gradient sampling element, a water sample receiving element, a water sample detection element, a controller, and a power source; A chute 1 is provided symmetrically at each end, a rectangular opening is provided at one side of the bottom of the detection body, and a chute 2 is horizontally provided at the bottom end of the detection body;

The gradient sampling element includes a mounting frame, a gradient sampling head, and a sampling head extrusion sleeve. The mounting frame is disposed on the outer wall of the detection body and is located on the same side as the rectangular opening. The bottom end of the mounting frame is provided with a plurality of sub-brackets. Each sub-bracket is provided with a winding disk, and the central axis of each of the winding disks is connected with a micro drive motor 1. There are multiple gradient sampling heads, and multiple gradient sampling heads correspond to the winding disks one by one. The gradient sampling head includes an extruded water hood, a filter hood, a support bar, a suction sponge ball, and a propeller. The extruded water hood and the filter hood are fastened to each other to form a cavity. The center of the bottom surface of the hood is extruded through a connection line. It is connected with the winding disc. The upper end of the squeeze water cover is provided with spring rods horizontally. The squeeze water cover is evenly provided with a plurality of unidirectional water outlets. The support vertical rods are vertically arranged in the cavity, and the two ends are respectively connected with the cavity. The two ends of the body are connected, and a sliding ring is sleeved on the supporting vertical rod. The inner wall of the filter cover is connected with the sliding ring in the circumferential direction through a plurality of sliding brackets. The water-absorbing sponge ball penetrates the supporting vertical rod and is located at Slip ring There are a plurality of pushers, which are respectively arranged on the outer wall of the squeeze water hood, and each pusher is driven by a micro driving motor. The sampling head squeeze sleeve is set at the lower end of the mounting frame, and the sampling head squeeze sleeve. There are multiple squeeze rings corresponding to the gradient sampling heads one by one, and the diameter of the squeeze rings is larger than the diameter of the bottom surface of the squeeze water hood and smaller than the diameter of the bottom surface of the squeeze water hood;

The water sample receiving element includes a sliding mounting plate, a receiving box, and a micro driving motor. The slider at the bottom of the sliding mounting plate slides in the chute 2 driven by the micro motor. The box is set on the sliding mounting plate, and there are multiple receiving dishes in the receiving box, and the receiving box can be moved to the outside of the detection body through a rectangular opening;

The water sample detection element includes a lifting fixture, a water quality detector, and a lifting motor. The sliders at the left and right ends of the lifting fixture can slide in the corresponding chute 1 driven by the lifting motor. There are multiple instruments, and multiple water quality detectors are evenly installed at the lower end of the lifting fixture horizontally, and multiple water quality detectors correspond to multiple receptacles one-to-one;

The controller is connected to a micro driving motor 1, a micro driving motor 2, a micro driving motor 3, a water quality detector and a lifting motor; the power source is a micro driving motor 1, a micro driving motor 2, a micro driving motor 3, and a water quality detector The lifting motor provides power.

Further, there are two rectangular openings, which are respectively located on the left and right sides of the lower end of the detection body. There are two sets of gradient sampling elements, and two corresponding mounting brackets are respectively provided on the left and right sides of the outer wall of the detection body. There are two groups, and the corresponding two sliders at the bottom of the mounting plate can be moved to the left and right sides of the detection body through two rectangular openings respectively. There are two groups of water sample detection elements, and the water quality corresponding to the two groups of water sample detection elements. The detectors are evenly arranged at the lower end of the lifting fixture. Water sources of different gradient depths are collected by two sets of gradient sampling elements, and simultaneously detected by two sets of water quality detectors. Finally, the average value of the two sets of detection values is used as the detection test. Increase the accuracy of device detection.

Further, the upper end of the detection body is provided with a breathable window, and each group of the water sample detection elements is provided with a purge mechanism. The purge mechanism includes an air compressor, an arc-shaped purge disc, and the arc-shaped purge. There are multiple disks, multiple arc-shaped purge disks and multiple water quality detectors are set up one-to-one. Each arc-shaped purge disk is provided with multiple purge ports, and external air is passed through a plurality of air compressors. The purge port is blown to each water quality detector to prevent the water quality detector from being wet for a long time after use, and rusting parts on the water quality detector will cause damage to the water quality detector.

Further, a plurality of drying lamps are symmetrically arranged on both sides of the inner wall of the detection main body, and the inside of the detection main body is dried by the drying lights, so as to avoid damage to various electrical components caused by moisture inside the device and reduce the service life of the device.

Further, a humidity sensor is provided in the detection body, and the humidity sensor is connected to the controller. After the pump device is used, the humidity sensor detects the humidity in the body and sends a signal to the controller to control the drying light. Switch to increase the intelligence of the device.

Further, the fastening parts of the squeeze water cover and the filter cover are removable, and the water-absorbing sponge ball can be replaced, so as to avoid damage of the water-absorbing sponge ball after long-term use, which affects the sampling effect.

Furthermore, the upper end of the receiving box is provided with a liquid dispensing tray, and the liquid dispensing tray is provided with the same number of liquid dispensing nozzles as the receiving dishes, and the liquid dispensing nozzles respectively extend into the corresponding receiving dishes. The collected polluted water source is diverted into multiple receptacles through each liquid-dispensing nozzle, so that the amount of water in each receptacle is uniform, and each polluted water source can be detected to reduce the detection error.

The working principle of the present invention is: when using the device of the present invention to detect water source pollution, move the device to the drinking water source to be detected, first, use gradient sampling elements to sample water from the drinking water source, The specific process is: start the corresponding micro drive motor 1 on each winding disc and reverse it, and at the same time, the connecting wire wound on the winding disc drives the gradient sampling head of the wire end to move down to the surface and stop the micro drive motor 1. The micro drive motor 2 of the gradient sampling head, and the micro drive motor 2 drives the corresponding thruster to generate a driving force for the gradient sampling head, so that the gradient sampling head enters the water source, and a different number of micros on each gradient sampling head can be controlled by the controller. The drive motor two works to increase the number of micro drive motors 2 in the working state on each gradient sampling head to increase the gradient, so that the thruster generates a gradient increasing driving force for each gradient sampling head to complete the sampling of water sources at different depths. Water flows through the filter hood to filter out larger solid magazines, enters the cavity, and absorbs water The ball absorbs the incoming water source, and the micro-drive motor is started to rotate forward, so that the connection line drives the gradient sampling head to move upwards until each gradient sampling head passes the squeeze ring, and the squeeze ring squeezes out the water cover to make the spring When the rod is compressed, the sliding ring is slid upward on the supporting vertical rod, so that the entire gradient sampling head is compressed in the vertical direction and snapped into the corresponding squeeze ring. After the water sample on the sponge sponge ball is squeezed, The one-way water outlet and filter cover flow out. Second, the sampled water sample is placed in the water sample receiving element. The specific process is: starting the micro drive motor three, and the micro drive motor three drives the sliding mounting plate to slide out of the detection body, and is located at After the sampling head squeezes the lower end of the sleeve, stop the micro drive motor three, drop the water sample squeezed by the water-absorbing sponge ball into each receptacle, and restart the micro drive motor three to drive the sliding mounting plate to move into the detection body. , And is located directly below the corresponding water quality detector; finally, the pollutants in the sampled water sample are detected, the specific process is: starting the lifting motor, the lifting motor drives the lifting solid The rack slides downwards in the chute until each water quality detector is inserted into the corresponding receptacle, and the lifting motor is stopped. At this time, the water sample detector detects the pollutants in the water sample and sends a signal to the control. Device.

Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a gradient sampling-based pollutant detection device for drinking water sources, which is performed by controlling a different number of micro-drive motors on each gradient sampling head. Work to make the number of micro driving motors in the working state on each gradient sampling head increase in a gradient, so that the thruster generates a gradient increasing driving force for each gradient sampling head to complete the sampling of water sources at different depths and make the water source sampling Reliable and representative; simultaneous collection of water sources with different gradient depths through two sets of gradient sampling elements, and simultaneous detection by two sets of water quality detectors, and finally taking the average of the two sets of detection values as detection tests to increase the accuracy of the test results The controller controls the operation of various electrical components to increase the reliability and intelligence of the device operation; the drying lamp is used to dry the inside of the detection body to avoid damage to the electrical components caused by moisture inside the device and reduce the service life of the device; The invention has reliable sampling, accurate detection and intelligent integration. Points suitable for mass promotion.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a slide-out detection body of a sliding mounting plate according to the present invention;

2 is a schematic structural diagram of a sliding mounting plate sliding into a detection main body of the present invention;

3 is a schematic structural diagram of a second chute of the present invention;

4 is a schematic diagram of the connection between the winding disc and the gradient sampling head of the present invention;

5 is a schematic diagram of an external structure of a gradient sampling head of the present invention;

6 is a schematic diagram of the internal structure of the gradient sampling head of the present invention;

7 is a schematic diagram of the internal structure of the thruster of the present invention;

8 is a plan view of a sampling head extrusion sleeve of the present invention;

FIG. 9 is a schematic structural diagram of an arc-shaped purge disk according to the present invention.

Among them, 1-detecting body, 10-chute 1, 11-rectangular opening, 12-chute 2, 13-ventilated window, 14-drying lamp, 15-humidity sensor, 2-gradient sampling element, 20-mounting frame , 200-point bracket, 201-wound disk, 202-micro drive motor 1, 21-gradient sampling head, 210- squeeze water cover, 2100- spring rod, 2101- one-way water outlet, 211-filter cover, 2110- Sliding bracket, 212-support cross bar, 2120-slip ring, 213-water-absorbing sponge ball, 214-thruster, 215-cavity, 22-sampling head squeeze sleeve, 220-squeeze ring, 3-water sample receiving Components, 30-sliding mounting plate, 31-receiving box, 310-receiving dish, 311-dispensing tray, 3110-dispensing nozzle, 32-micro drive motor III, 4-water sample detection element, 40-lifting fixing Rack, 41-water quality detector, 42-lift motor, 43-purge mechanism, 430-air compressor, 431-arc purge disc, 4310-purge port, 5-controller.

detailed description

Embodiment: As shown in Figs. 1 and 2, a device for detecting pollutants in drinking water sources based on gradient sampling mainly includes a detection body 1, a gradient sampling element 2, a water sample receiving element 3, a water sample detection element 4, Controller 5, power supply; the left and right ends of the inner wall of the detection body 1 are provided with chute slots 10 symmetrically, and the left and right sides of the side wall of the detection body 1 are respectively provided with rectangular openings 11, as shown in FIG. 3, and the inner bottom end of the detection body 1 is detected. There are two chute 12 horizontally, a ventilation window 13 is provided on the upper end of the detection body 1, 12 drying lights 14 are symmetrically arranged on both sides of the inner wall of the detection body 1, and the inside of the detection body 1 is dried by the drying lights 14 to avoid the device The internal humidity causes damage to various electrical components, reducing the service life of the device. A humidity sensor 15 is provided in the detection body 1, and the humidity sensor 15 is connected to the controller 5. After the pump device is used, the humidity sensor 15 is used to detect the detection in the body 1. Humidity, and sends a signal to the controller 5 to control the switch of the drying lamp 14, which increases the intelligence of the device. The type of the humidity sensor 15 is hm1520lf;

The gradient sampling element 2 has two groups, including a mounting bracket 20, a gradient sampling head 21, and a sampling head extrusion sleeve 22. The mounting bracket 20 is provided on the left and right ends of the outer wall of the detection body 1, and is located on the same side of the rectangular opening 11. There are three sub-brackets 200 at the bottom end of each mounting bracket 20, as shown in FIG. 4, and each sub-bracket 200 is provided with a winding disk 201, and a central drive shaft of each winding disk 201 is connected with a micro drive motor. 202. There are 6 gradient sampling heads 21, and the 6 gradient sampling heads 21 correspond to the 6 winding discs 201. As shown in FIGS. 5 and 6, the gradient sampling head 21 includes a squeeze water cover 210, a filter cover 211, and a support. The horizontal and vertical rod 212, the absorbent sponge ball 213, and the pusher 214 are squeezed out of the water cover 210 and the filter cover 211 to form a cavity 215. The center of the bottom surface of the water cover 210 is connected to the winding plate 201 through a connection line to squeeze out water. A spring rod 2100 is horizontally provided on the upper end of the cover 210, and 33 unidirectional water outlets 2101 are uniformly arranged on the extruded water cover 210. A supporting vertical rod 212 is vertically installed in the cavity 215, and the two ends are respectively connected with the cavity 215. End connection, a support ring 2120 is provided with a sliding ring 2120, and the inner wall of the filter cover 211 passes through 4 The sliding bracket 2110 is connected to the sliding ring 2120 in the circumferential direction. A water-absorbing sponge ball 213 is penetrated and arranged on the support vertical rod 212 and is located at the upper end of the sliding ring 2120. The water hood 210 and the filter 211 are squeezed to be removable and can absorb water. The sponge ball 213 can be replaced to prevent the water-absorbing sponge ball 213 from being damaged after long-term use, which affects the sampling effect. As shown in FIG. 7, there are three propellers 214, which are respectively arranged on the outer wall of the squeeze water cover 210, and each of the propellers 214 Driven by a micro drive motor 2140, the thruster 214 is model wt1-10b. As shown in FIG. 8, the squeeze ring 200 corresponds to the six gradient sampling heads 21, and the diameter of the squeeze ring 200 is larger than the squeeze water cover. The diameter of the upper bottom surface of 210 is smaller than the diameter of the lower bottom surface of the squeeze water cover 210;

There are two groups of water sample receiving elements 3, which include sliding mounting plate 30, receiving box 31, and micro drive motor 32. The sliders at the bottom of the two slide mounting plates 30 can be driven by two The rectangular openings 11 are moved to the left and right sides of the detection body 1. The receiving boxes 31 are provided on the sliding mounting plate 30. Each receiving box 31 is provided with three receiving dishes 310. The receiving box 31 can pass through the rectangular opening 11 Move to the outside of the detection main body 1. A liquid dispensing tray 311 is provided at the upper end of the receiving box 31, and the liquid dispensing tray 311 is provided with the same number of liquid dispensing nozzles 3110 as the receiving container 310. The liquid dispensing nozzles 3110 are respectively extended into the corresponding containers. In the receiving vessel 310, the collected contaminated water is diverted into three receiving vessels 310 through each liquid dispensing nozzle 3110, so that the amount of water in each receiving vessel 310 is uniform, and each water quality detector 41 can detect the polluted water source. , To reduce the detection error, the micro-drive motor 202, the micro-drive motor 2140, and the micro-motor 32 are all produced by Shenzhen Delong Weiye Innovation Technology Co., Ltd., the model is dlgm13-n10va;

There are two sets of water sample detection elements 4, and the water quality detectors 41 corresponding to the two sets of water sample detection elements 4 are evenly arranged at the lower end of the lifting fixture 40, including the lifting fixture 40, the water quality detector 41, and the lifting motor 42, respectively. The sliders on the left and right sides of the fixing frame 40 can slide in the corresponding chute 1-10 under the driving of the lifting motor 42. The water quality detector 41 is a German colis300 plug-in online solid moisture meter. There are 6 and 6 water quality detectors 41 The water quality detector 41 is evenly installed at the lower end of the lifting fixture 40 horizontally. The six water quality detectors 41 are divided into two groups, each of which corresponds to one of the three receiving vessels 310. Two sets of gradient sampling elements 2 are used for different gradient depths. The water source is collected and detected by two sets of water quality detectors 41 at the same time. Finally, the average value of the two sets of detection values is taken as the detection test to increase the accuracy of the device detection. The model of the lifting motor 42 is zd122-4-1.5kw. The water sample detection element 4 is provided with a purging mechanism 43. The purging mechanism 43 includes an air compressor 430 and an arc-shaped purge disk 431. The air compressor 430 is produced by Changsha Shuangsi Electromechanical Technology Co., Ltd. and the model is bk7. 5-8g, curved blow There are six discs 431, six arc-shaped purge discs 431 and six water quality detectors 41 are arranged one by one. As shown in FIG. 9, each arc-shaped purge disc 431 is provided with a plurality of purge ports 4310. The external air is blown to each water quality detector 41 through 30 blowing ports 4310 through the air compressor 430 to avoid the water quality detector 41 being in a wet state for a long time after use, and the parts on the water quality detector 41 will rust. Damage to the water quality detector 41;

The controller 5 is connected to the drying lamp 14, the humidity sensor 15, the micro drive motor one 202, the micro drive motor two 2140, the micro drive motor three 32, the air compressor 400, the water quality detector 41, and the lifting motor 42. Among them, the controller 5 is produced by Shenzhen Pulete Electronics Co., Ltd., the model is ky06s; the power supply is micro drive motor 202, micro drive motor 2140, micro drive motor 32, water quality detector 41, and lifting motor 42 to provide power.

When using the device of the present invention to detect pollutants in a water source, the device is moved to the source of drinking water to be detected. First, the gradient sampling element 2 is used to sample the water in the source of drinking water. The specific process is: The corresponding micro drive motor 202 on each winding disc 201 is reversed. At the same time, the connection wire wound on the winding disc 201 drives the gradient sampling head 21 of the wire end to move down to the water surface, and then stops the micro drive motor 202 to start the gradient. The micro drive motor 2140 of the sampling head 21, the micro drive motor 2140 drives the corresponding propeller 214 to generate a driving force for the gradient sampling head 21, so that the gradient sampling head 21 enters the water source. Each gradient sampling can be controlled by the controller 5. Different numbers of micro drive motors 2140 on the head 21 work to increase the number of micro drive motors 2140 in the working state of each gradient sampling head 21 to increase the gradient, so that the thruster 214 generates a gradient increase to each gradient sampling head 21 To complete the sampling of water sources at different depths, water flows through the filter cover 211 to filter out larger solid magazines, and In the cavity 215, the water-absorbing sponge ball 213 adsorbs the incoming water source, and the micro-drive motor 202 is started to rotate forward, so that the connection line drives the gradient sampling head 21 to move upward until each gradient sampling head 21 passes the squeeze ring 200, squeezes The pressure ring 200 squeezes out the water cover 210 to compress the spring rod 2100, and at the same time causes the slide ring 2120 to slide upward on the support vertical rod 212, so that the entire gradient sampling head 21 is compressed in the vertical direction and snaps into the corresponding squeeze. In the pressure ring 200, the water sample on the water-absorbing sponge ball 213 is squeezed, and then flows out through the one-way water outlet 2101 and the filter cover 211. Second, the sampled water sample is placed in the water sample receiving element 3. The specific process For: start the micro drive motor three 32, the micro drive motor three 32 drives the sliding mounting plate 30 to slide out of the detection body 1, and is located directly below the sampling head extrusion sleeve 22, stop the micro drive motor three 32, and squeeze the water-absorbing sponge ball 213 The pressed water sample drips into each receptacle 310 and restarts the micro drive motor three 32 to move the slide mounting plate 30 into the detection body 1 and is located directly below the corresponding water quality detector 41. Finally, the sampled Watery The specific process of detecting pollutants is as follows: the lifting motor 42 is started, and the lifting motor 42 drives the lifting fixture 40 to slide down in the chute one 10 until each water quality detector 41 is inserted into the corresponding receptacle 310 and stops. The lifting motor 42, at this time, the water sample detector 41 detects the pollutants in the water sample and sends a signal to the controller 5.

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