CN114910304B - River water quality detection sampling device and method for hydraulic engineering - Google Patents
River water quality detection sampling device and method for hydraulic engineering Download PDFInfo
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- 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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/08—Fish passes or other means providing for migration of fish; Passages for rafts or boats
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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
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- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
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- G—PHYSICS
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- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Abstract
The invention belongs to the technical field of hydraulic engineering detection, and particularly relates to river water quality detection sampling equipment and a method for hydraulic engineering, wherein the detection sampling equipment comprises an ecological dam, a linear guide rail, a water quality detection sampling mechanism and a water quality detection unit; the device is reasonable in design, the ecological dam with the fishway is used as a carrier, the ecological dam is provided with the linear guide rail, the water quality detection sampling mechanism and the water quality detection unit, the water quality detection sampling mechanism can quickly adjust the sampling position by using the linear guide rail, and the layered sampling of the same sampling position is realized by using the self pumping height switching driving component; the water quality testing sampling mechanism is simple in structure, suitable for being used as long-term sampling equipment to perform regular water quality testing sampling, and the water sample can be timely guided into the water quality testing unit by using a pipeline system to perform relevant testing, so that parameter change of the water sample in a longer transfer process is effectively avoided, and the reliability of a testing result is guaranteed.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering detection, and particularly relates to river water quality detection sampling equipment and method for hydraulic engineering.
Background
Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. In order to protect aquatic animals, barrages have to be built in recent years in order to protect the environment, the agricultural sector and various environmental organizations. The fishway is a passage for fish migration, and remedial measures are taken because human activities destroy the passage for fish migration; when the weather is dry, the water level in the fishway is reduced, the fishway needs to be replenished with water in order to enable fishes to smoothly migrate in the fishway, currently, river water is generally input into the fishway for replenishing water, and the fishes have requirements on the water quality, so that the river water input into the fishway needs to be detected, whether the river water meets the requirements of the fishes or not is judged, and the river water needs to be sampled before being detected.
Therefore, the patent specification with the publication number CN108801699B discloses a river water quality detection sampling device for hydraulic engineering, which comprises a bottom plate, a collecting box, a supporting plate, a piston cylinder, a first check valve, a liquid conveying pipe, a spray head, a second check valve, a hose, a piston block, a first bearing seat and the like; the collecting box has been placed on the right side on the bottom plate, and bottom plate upside middle part is connected with the backup pad, and backup pad left side below is connected with the piston cylinder, and the right-hand first check valve that is connected with of piston cylinder downside. The filter screen of this sampling device gos deep into the different degree of depth in the river, can sample the river water of the different degree of depth to can improve river water detection accuracy, the ratchet can sample the river water with setting up of awl piece indirectly.
However, the river water quality detection sampling device for the hydraulic engineering has disadvantages in the using process, firstly, the movement convenience of the sampling device is poor, and the detection sampling position cannot be quickly adjusted according to the needs; secondly, the sampling equipment has complex structure and is not suitable for being used as long-term sampling equipment for periodic water quality detection sampling; thirdly, the water quality sample which can not be detected is rapidly transported to the detection equipment for real-time analysis, so that the water quality sample has parameter change in a longer transportation process, and the reliability of the detection result is influenced. Therefore, the structure thereof needs to be optimized and improved.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides river water quality detection sampling equipment and method for replacing manpower and facilitating transportation of hydraulic engineering.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the invention provides river water quality detection sampling equipment for hydraulic engineering, which is characterized by comprising the following components:
the ecological dam comprises two pier body seats, side plate seats and baffle seats, wherein the two pier body seats are symmetrically arranged at a water opening of a reservoir area, the side plate seats are fixed on the back water surface of one side of the pier body seat corresponding to the reservoir area, the baffle seats are fixed between the two side plate seats in a staggered manner, and a fishway is formed between every two adjacent baffle seats;
the linear guide rail is arranged on two adjacent deflection seats on the same side plate seat side by side and consists of a slide rail and a slide seat;
the water quality detection and sampling mechanism comprises a movable beam plate, a suction pump, an external suction pipe, a suction assembly, a suction height switching driving assembly and a protection assembly, wherein two ends of the movable beam plate are respectively fixed with sliding seats in the two linear guide rails; the movable beam plate is provided with a suction pump, an external suction pipe and a suction assembly, and the outer side of the suction assembly on the movable beam plate is provided with a suction height switching driving assembly and a protection assembly;
the water quality detection unit is fixed on the outer wall of the pier body seat or the side plate seat, and a water sample collected by the suction assembly is communicated with a detection pipeline of the water quality detection unit through a flow guide pipe arranged on the baffling seat.
Further, in the river water quality detection sampling equipment for the hydraulic engineering, the upper end face of the deflection seat is composed of an inner water plane part and an outer inclined part, an included angle between the inclined part and the water plane part is 150 to 170 degrees, and the slide rail of the linear guide rail is fixedly installed on the upper side of the inclined part of the deflection seat.
Further, among the river water quality testing sampling equipment for above-mentioned hydraulic engineering, the suction subassembly includes rotary seal seat, main suction installation cover, props up suction installation cover and end cap, install at least one between the bottom of main suction installation cover and the end cap and prop up suction installation cover, the inside that the outside of main suction installation cover, prop up suction installation cover was equipped with suction opening and suction opening is connected with the one end of built-in suction tube, built-in suction tube can communicate with external suction tube in proper order through rotary seal seat's rotation.
Furtherly, among the river water quality testing sampling equipment for above-mentioned hydraulic engineering, the inside of rotary seal seat is equipped with central water conservancy diversion way, intercommunication runner, eccentric runner and sealed end plate, the one end and the external suction tube intercommunication of central water conservancy diversion passageway, the other end are through intercommunication runner and eccentric runner intercommunication, sealed end plate is fixed with the main upper end of sucking the installation cover, and the embedding installs the through-hole that is circular array and distributes in the plate body, the quantity of through-hole equals with the quantity of built-in suction tube in the subassembly that corresponds, the other end of built-in suction tube and the up end parallel and level that corresponds the through-hole.
Further, among the river water quality testing sampling equipment for above-mentioned hydraulic engineering, the high switching drive subassembly of suction includes switching motor, drive gear and driven ring gear, be fixed with drive gear in the pivot of switching motor, the outside of rotary seal seat is fixed with driven ring gear, drive gear and driven ring gear intermeshing.
Furthermore, among the river water quality testing sampling equipment for hydraulic engineering, the protection component includes the protecting tube, the bottom side fixed connection of gusset and walking beam board is passed through on the top of protecting tube, the body equipartition of protecting tube has the suction micropore.
Further, among the river water quality testing sampling equipment for above-mentioned hydraulic engineering, the walking beam board is located and installs the clearance subassembly between suction subassembly, the protection component, the clearance subassembly is including clearance motor, belt pulley and clearance pipe, clearance motor fixed mounting is in the bottom side of walking beam board, the output shaft of clearance motor carries out the transmission through belt pulley and the top of clearance pipe and is connected, the clearance brush that is used for carrying out the clearance to the suction micropore is installed to the outer wall of clearance pipe, the water conservancy diversion through-hole has been seted up on the clearance pipe.
Further, among the river water quality testing sampling device for the hydraulic engineering, the water quality testing unit contains at least one of pH detection module, nitrite detection module, ammonia nitrogen detection module, dissolved oxygen detection module.
Further, among the river water quality testing sampling equipment for above-mentioned hydraulic engineering, install photovoltaic power generation unit, battery, controller and wireless transceiver unit on the ecological dam, photovoltaic power generation unit can charge to the battery, the battery provides the electric energy for water quality testing unit, controller, wireless transceiver unit and each power component, the controller is connected with linear guide, suction pump, water quality testing unit, wireless transceiver unit and each power motor, the controller carries out wireless communication through wireless transceiver unit and backstage monitoring center.
A river water quality detection sampling method for hydraulic engineering is realized based on the river water quality detection sampling equipment for hydraulic engineering and comprises the following steps:
1) The water quality detection sampling mechanism is driven to move to a first sampling point through the linear guide rail;
2) The pumping assembly in the water quality detection sampling mechanism utilizes the pumping height switching driving assembly to switch the pumping height, and after each switching is finished, the pumping pump is utilized to perform water quality detection sampling, so that the layered sampling of the same sampling point which cannot be in the high degree is realized;
3) Driving the water quality detection sampling mechanism to shift to the next sampling point through the linear guide rail, and repeating the step 2);
4) Repeating the step 3) until all sampling points finish sampling;
5) The water quality detection unit automatically detects the water sample.
The invention has the beneficial effects that:
1. the river water quality detection sampling equipment for the hydraulic engineering is reasonable in structural design, an ecological dam with a fishway is used as a carrier, and a linear guide rail, a water quality detection sampling mechanism and a water quality detection unit are installed on the ecological dam.
2. The water quality detection sampling mechanism provided by the invention is simple in structure, is suitable for being used as long-term sampling equipment to perform periodic water quality detection sampling, and a water sample can be timely led into the water quality detection unit by using a pipeline system to perform related detection, so that the water sample is effectively prevented from parameter change in a longer transfer process, and the reliability of a detection result is guaranteed.
3. The water quality detection unit provided by the invention adopts automatic detection, and can keep wireless communication with a background monitoring center by matching with a control assembly formed by a photovoltaic power generation unit, a storage battery, a controller, a wireless transceiving unit and the like, so that automatic unmanned monitoring is realized.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is a schematic view of the water quality detecting and sampling mechanism of the present invention;
FIG. 5 is a schematic perspective view of a water quality detecting and sampling mechanism according to the present invention;
FIG. 6 is a schematic view of the pumping assembly of the present invention;
FIG. 7 is a schematic view of the suction assembly showing the construction of the suction mounting sleeve and plug;
FIG. 8 is a schematic structural view of a rotary seal housing according to the present invention;
FIG. 9 is a schematic view of the placement of the internal suction tubes on the seal end plate according to the present invention;
FIG. 10 is a schematic view of the pumping height switching drive assembly of the present invention;
FIG. 11 is a schematic view of the protective assembly of the present invention;
FIG. 12 is a schematic structural diagram of a cleaning assembly according to a second embodiment of the present invention;
FIG. 13 is a control schematic block diagram of a third embodiment of the present invention;
in the drawings, the reference numbers indicate the following list of parts:
1-pier seat, 2-side plate seat, 3-baffle seat, 301-horizontal part, 302-inclined part, 4-fishway, 5-sliding rail, 6-sliding seat, 7-movable beam plate, 8-suction pump, 9-external suction pipe, 10-suction component, 101-rotary seal seat, 102-main suction installation sleeve, 103-branch suction installation sleeve, 104-plug, 105-suction port, 106-central guide channel, 107-communication channel, 108-eccentric channel, 109-seal end plate, 110-internal suction pipe, 11-protection component, 111-protection pipe, 112-suction micropore, 113-rib plate, 12-suction height switching drive component, 121-switching motor, 122-driving gear, 123-driven gear ring, 13-cleaning motor, 14-belt pulley, 15-cleaning pipe, 151-cleaning brush, 152-guide through hole, 16-guide pipe, 17-water quality detection unit, 18-photovoltaic power generation unit, 19-storage battery, 20-controller, 21-wireless transceiver unit, 22-central monitoring back seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 to 11, the embodiment is a river water quality detection and sampling device for hydraulic engineering, which includes an ecological dam, a linear guide rail, a water quality detection and sampling mechanism and a water quality detection unit.
In this embodiment, ecological dam includes mound seat 1, curb plate seat 2 and baffling seat 3, and mound seat 1 is total two and the symmetry sets up in storehouse district water gap department, and mound seat 1 corresponds the surface of a back water on one side of the storehouse district and is fixed with curb plate seat 2, and crisscross baffling seat 3 that is fixed with between two curb plate seats 2. A fishway 4 is formed between two adjacent baffle seats 3. The upper end surface of the baffle seat 3 is composed of an inner horizontal plane part 301 and an outer inclined part 302, and the included angle between the inclined part 302 and the horizontal plane part 301 is 150 to 170 degrees.
In this embodiment, the linear guide rail is installed side by side on two adjacent baffling seats 3 on the same side plate seat 2, the linear guide rail is composed of a slide rail 5 and a slide seat 6, and the slide rail 5 of the linear guide rail is fixedly installed on the upper side of the inclined part 302 of the baffling seat 3.
In this embodiment, water quality testing sampling mechanism includes walking beam board 7, suction pump 8, external suction tube 9, suction subassembly 10, suction height switch drive assembly 12 and protection component 11, and walking beam board 7 is the L shape, and the both ends of walking beam board 7 are fixed with slide 6 in two linear guide respectively. The movable beam plate 7 is provided with a suction pump 8, an external suction pipe 9 and a suction assembly 10, and the movable beam plate 7 is provided with a suction height switching driving assembly 12 and a protection assembly 11 on the outer side of the suction assembly 10.
In this embodiment, the water quality detecting unit 17 is fixed on the outer wall of the pier body seat 1 or the side plate seat 2, and a water sample collected by the suction assembly 10 is communicated with a detection pipeline of the water quality detecting unit 17 through the suction pump 8, the external suction pipe 9 and the guide pipe 16 installed on the baffling seat 3. The water quality detection unit 17 comprises at least one of a pH detection module, a nitrite detection module, an ammonia nitrogen detection module and a dissolved oxygen detection module, and the detection modules can be automatically detected and can be increased and decreased according to actual needs. The draft tube 16 is a telescopic tube capable of extending and retracting, so that the suction assembly 10 and the draft tube 16 can still be well communicated when the water quality detection sampling mechanism is displaced. A penetrating channel which is convenient for penetrating and fixing the external suction pipe 9 is arranged at the end part of the movable beam plate 7 close to the end part.
In this embodiment, the suction assembly 10 includes a rotary seal seat 101, a main suction mounting sleeve 102, a branch suction mounting sleeve 103 and a plug 104, at least one branch suction mounting sleeve 103 is mounted between the bottom end of the main suction mounting sleeve 102 and the plug 104, a suction port 105 is disposed on the outer side of the main suction mounting sleeve 102 and the branch suction mounting sleeve 103, the inner end of the suction port 105 is connected to one end of an internal suction pipe 110, and the internal suction pipe 110 can be sequentially communicated with the external suction pipe 9 through the rotation of the rotary seal seat 101. The inside of rotary seal seat 101 is equipped with central water conservancy diversion way 106, intercommunication runner 107, eccentric runner 108 and sealed end plate 109, the one end and the external suction tube 9 intercommunication of central water conservancy diversion way 106, the other end is through intercommunication runner 107 and eccentric runner 108 intercommunication, sealed end plate is fixed with the upper end of 109 main suction installation cover, and the embedding is installed in the plate body and is the through-hole that circular array distributes, the quantity of through-hole equals with the quantity of built-in suction tube 110 in the suction subassembly 10 that corresponds, the other end of built-in suction tube 110 and the up end parallel and level that corresponds the through-hole. The position of the external suction tube 9, the seal plate 109 and the main suction mounting sleeve 102 remain fixed and may be reinforced by stabilizing brackets. The eccentric flow channel 108 rotates along with the rotating seal seat 101, and the position changes, and the 'sequential communication with the built-in suction pipes 110 in each through hole' can be realized by controlling the rotating angle, and when one built-in suction pipe 110 is communicated, the rest built-in suction pipes 110 can be completely blocked by the rotating seal seat 101. The external suction pipe 9, the main suction mounting sleeve 102 and the rotary sealing seat 101 are connected.
In this embodiment, the suction level switching driving assembly 12 includes a switching motor 121, a driving gear 122 and a driven gear ring 123, the driving gear 122 is fixed on a rotating shaft of the switching motor 121, the driven gear ring 123 is fixed on an outer side of the rotary seal holder 101, and the driving gear 122 and the driven gear ring 123 are engaged with each other.
In this embodiment, the protection assembly 11 includes a protection tube 111, the top end of the protection tube 111 is fixedly connected to the bottom side of the movable beam plate 7 through a rib plate 113, suction micro holes 112 are uniformly distributed on the tube body of the protection tube 111, and the suction micro holes 112 are designed to prevent impurities from blocking the suction opening 105.
The embodiment provides a river water quality detection sampling method for hydraulic engineering, which comprises the following steps:
1) The water quality detection sampling mechanism is driven to move to a first sampling point through the linear guide rail;
2) In the water quality detection sampling mechanism, a pumping assembly 10 utilizes a pumping height switching driving assembly 12 to switch the pumping height, and after each switching is finished, a pumping pump is utilized to perform water quality detection sampling, so that layered sampling with the same sampling point and without the same height is realized;
3) Driving the water quality detection sampling mechanism to shift to the next sampling point through the linear guide rail, and repeating the step 2);
4) Repeating the step 3) until all sampling points finish sampling;
5) The water quality detection unit 17 automatically detects the water sample.
Example two
In this embodiment, the first embodiment is modified, and a cleaning assembly is installed between the suction assembly 10 and the protection assembly 11 on the movable beam plate 7, as shown in fig. 12, the cleaning assembly includes a cleaning motor 13, a belt pulley 14 and a cleaning pipe 15, the outer diameter of the cleaning pipe 15 is smaller than the inner diameter of the protection pipe 111, and the inner diameter of the cleaning pipe 15 is larger than the outer diameter of the main suction installation sleeve 102.
The cleaning motor 13 is fixedly arranged at the bottom side of the movable beam plate 7, an output shaft of the cleaning motor 13 is in transmission connection with the top end of the cleaning pipe 15 through the belt pulley 14, a cleaning brush 151 used for cleaning the suction micro-hole 112 is arranged on the outer wall of the cleaning pipe 15, and a flow guide through hole 152 is formed in the cleaning pipe 15.
EXAMPLE III
The embodiment is improved on the basis of the first embodiment, a photovoltaic power generation unit 18, a storage battery 19, a controller 20 and a wireless transceiver unit 21 are installed on the ecological dam, the photovoltaic power generation unit 18 can charge the storage battery 19, the storage battery 19 provides electric energy for the water quality detection unit 17, the controller 20, the wireless transceiver unit 21 and each power component, the controller 20 is connected with the linear guide rail, the suction pump 8, the water quality detection unit 17, the wireless transceiver unit 21 and each power motor, and the controller 20 is in wireless communication with the background monitoring center 22 through the wireless transceiver unit 21.
The embodiment provides a river water quality detection sampling method for hydraulic engineering, which comprises the following steps:
1) The water quality detection sampling mechanism is driven to move to a first sampling point through the linear guide rail;
2) The pumping assembly 10 in the water quality detection sampling mechanism utilizes the pumping height switching driving assembly to switch the pumping height, and after each switching is finished, a pumping pump is utilized to perform water quality detection sampling, so that the layered sampling of the same sampling point which cannot be in the height is realized;
3) Driving the water quality detection sampling mechanism to shift to the next sampling point through the linear guide rail, and repeating the step 2);
4) Repeating the step 3) until all sampling points finish sampling;
5) The water quality detection unit 17 automatically detects the water sample, and the detection result is sent to the background monitoring center 22 by the controller 20 through the wireless transceiving unit 21 in real time, so that automatic unmanned monitoring is realized.
The preferred embodiments of the invention disclosed above are merely intended to aid in the description of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The utility model provides a river water quality testing sampling device for hydraulic engineering which characterized in that includes:
the ecological dam comprises pier body seats, side plate seats and baffle seats, wherein the pier body seats are two in number and are symmetrically arranged at a water opening of a reservoir area, the side plate seats are fixed on the back water surface of one side of the pier body seat corresponding to the reservoir area, the baffle seats are fixed between the two side plate seats in a staggered manner, and a fishway is formed between every two adjacent baffle seats;
the linear guide rail is arranged on two adjacent baffling seats on the same side plate seat side by side and consists of a sliding rail and a sliding seat;
the water quality detection and sampling mechanism comprises a movable beam plate, a suction pump, an external suction pipe, a suction assembly, a suction height switching driving assembly and a protection assembly, wherein two ends of the movable beam plate are respectively fixed with sliding seats in the two linear guide rails; the movable beam plate is provided with a suction pump, an external suction pipe and a suction assembly, and the outer side of the suction assembly on the movable beam plate is provided with a suction height switching driving assembly and a protection assembly;
the water quality detection unit is fixed on the outer wall of the pier body seat or the side plate seat, and a water sample collected by the suction assembly is communicated with a detection pipeline of the water quality detection unit through a guide pipe arranged on the deflection seat;
the upper end face of the deflection seat is composed of an inner horizontal plane part and an outer inclined part, the included angle between the inclined part and the horizontal plane part is 150 to 170 degrees, and a slide rail of the linear guide rail is fixedly arranged on the upper side of the inclined part of the deflection seat;
the suction assembly comprises a rotary sealing seat, a main suction mounting sleeve, a branch suction mounting sleeve and a plug, at least one branch suction mounting sleeve is mounted between the bottom end of the main suction mounting sleeve and the plug, suction ports are formed in the outer sides of the main suction mounting sleeve and the branch suction mounting sleeve, the inner ends of the suction ports are connected with one end of an internal suction pipe, and the internal suction pipe can be sequentially communicated with the external suction pipe through rotation of the rotary sealing seat;
a central flow guide channel, a communication flow channel, an eccentric flow channel and a sealing end plate are arranged in the rotary sealing seat, one end of the central flow guide channel is communicated with an external suction pipe, the other end of the central flow guide channel is communicated with the eccentric flow channel through the communication flow channel, the sealing end plate is fixed with the upper end of the main suction mounting sleeve, through holes distributed in a circular array are embedded in a plate body, the number of the through holes is equal to that of the built-in suction pipes in the corresponding suction assembly, and the other end of the built-in suction pipe is flush with the upper end face of the corresponding through hole;
the suction height switching driving assembly comprises a switching motor, a driving gear and a driven gear ring, the driving gear is fixed on a rotating shaft of the switching motor, the driven gear ring is fixed on the outer side of the rotary sealing seat, and the driving gear is meshed with the driven gear ring;
the protection assembly comprises a protection pipe, the top end of the protection pipe is fixedly connected with the bottom side of the movable beam plate through a rib plate, and suction micropores are uniformly distributed in the pipe body of the protection pipe;
the utility model discloses a suction device, including walking beam board, movable beam board, belt pulley, cleaning assembly, cleaning motor, belt pulley and cleaning pipe, the movable beam board is located and installs the cleaning assembly between suction assembly, the protection subassembly, the cleaning assembly is including cleaning motor, belt pulley and cleaning pipe, cleaning motor fixed mounting is in the bottom side of movable beam board, the output shaft of cleaning motor carries out the transmission through belt pulley and the top of cleaning pipe and is connected, the cleaning brush that is used for carrying out the clearance to the suction micropore is installed to the outer wall of cleaning pipe, the water conservancy diversion through-hole has been seted up on the cleaning pipe.
2. The river water quality detection sampling device for the hydraulic engineering according to claim 1, characterized in that: the water quality detection unit comprises at least one of a pH detection module, a nitrite detection module, an ammonia nitrogen detection module and a dissolved oxygen detection module.
3. The river water quality detection sampling device for the hydraulic engineering according to claim 1, characterized in that: install photovoltaic power generation unit, battery, controller and wireless transceiver unit on the ecological dam, photovoltaic power generation unit can charge to the battery, the battery provides the electric energy for water quality testing unit, controller, wireless transceiver unit and each power component, the controller is connected with linear guide, suction pump, water quality testing unit, wireless transceiver unit and each power motor, the controller carries out wireless communication through wireless transceiver unit and backstage monitoring center.
4. A river water quality detection sampling method for hydraulic engineering is realized on the basis of river water quality detection sampling equipment for hydraulic engineering according to any one of claims 1 to 3, and is characterized by comprising the following steps of:
1) The water quality detection sampling mechanism is driven to move to a first sampling point through the linear guide rail;
2) The pumping assembly in the water quality detection sampling mechanism utilizes the pumping height switching driving assembly to switch the pumping height, and after each switching is finished, the pumping pump is utilized to perform water quality detection sampling, so that the layered sampling of the same sampling point which cannot be in the high degree is realized;
3) Driving the water quality detection sampling mechanism to shift to the next sampling point through the linear guide rail, and repeating the step 2);
4) Repeating the step 3) until all sampling points finish sampling;
5) The water quality detection unit automatically detects the water sample.
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