CN111579310A - Automatic return type water collection device based on hydrological exploration and working method thereof - Google Patents
Automatic return type water collection device based on hydrological exploration and working method thereof Download PDFInfo
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- CN111579310A CN111579310A CN202010549000.2A CN202010549000A CN111579310A CN 111579310 A CN111579310 A CN 111579310A CN 202010549000 A CN202010549000 A CN 202010549000A CN 111579310 A CN111579310 A CN 111579310A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
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- 230000009471 action Effects 0.000 claims description 7
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- 230000002159 abnormal effect Effects 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
- B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
- B26D5/086—Electric, magnetic, piezoelectric, electro-magnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
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Abstract
The invention discloses an automatic return type water collection device based on hydrological exploration and a working method thereof, and belongs to the technical field of intelligent water finding.
Description
Technical Field
The invention relates to an automatic return type water collecting device based on hydrological exploration, in particular to an automatic return type water collecting device based on hydrological exploration and a working method thereof.
Background
For natural water systems such as rivers, lakes, oceans and the like, a sampling method by means of ships or bridges or wading sampling is commonly used in the prior art. There are three main ways of sampling: sampling by a water sampler, pumping a water sample by a pump, automatically sampling and enriching and sampling on site, wherein the water sampler method is more universal.
In order to adapt to the environmental pollution detection of water bodies, the development of hydrological physical observation and biological geochemical research, a manual water sampler, a mechanical water sampler and an automatic water sampler respectively appear, when a water sampler in the prior art is used for sampling, a hammer is slid down along a sampling cable to start a bottle cap closing device, a spring or a rubber band on a bottle enables bottle caps at two ends to be tightly closed, and a water sample is collected.
Disclosure of Invention
The purpose of the invention is as follows: an automatic return type water collecting device for hydrological exploration and a working method thereof are used for solving the problems in the prior art.
The technical scheme is as follows: an automatic return type water collecting device for hydrological exploration comprises a main shell, a release mechanism arranged at one end of the main shell, a closing mechanism arranged at the other end of the main shell, at least 4 fixed sleeves fixedly arranged on the circumference of the main shell, a water collecting bottle provided with the fixed sleeves, and a cutting device for aquatic plants and arranged on the circumference of the water collecting bottle;
the main casing body comprises a sealed cabin, a support rod arranged in the sealed cabin and screwed on the closing mechanism, a sensor base plate fixedly arranged on the support rod, a pressure sensor and a circuit board arranged on the sensor base plate, a support screwed on the top of the support rod, and a drying agent arranged in the sealed cabin and near the circuit board.
In a further embodiment, the main shell is designed into a cylinder shape with a hollow structure, and the end surface of the main shell is provided with a plurality of threaded holes,
the main shell is made of LY12 model heat-treated reinforced aluminum.
In a further embodiment, the closing mechanism comprises an electromagnetic valve chamber connected with the main shell, a water collection bottle end cover screwed on the electromagnetic valve chamber, electromagnetic valves screwed on the electromagnetic valve chamber and having the same number as the water collection bottles, a pin shaft positioning frame arranged on the water collection bottle end cover, a pin shaft inserted on the pin shaft positioning frame, a top plate screwed on the water collection bottle end cover, a rubber membrane arranged on the water collection bottle end cover and positioned on the end surface of the top plate, a watertight connector arranged on the electromagnetic valve chamber, an electromagnetic valve gasket arranged on the inner wall of the electromagnetic valve chamber, and a baffle plate arranged in the electromagnetic valve chamber and connected with the electromagnetic valves and the watertight connector;
the baffle is made of epoxy resin board material.
In a further embodiment, grooves are respectively arranged in the circumferential direction of the water collecting bottle end cover and the circumferential direction of the electromagnetic valve chamber, and O-shaped rings are matched in the grooves;
the number of the cores of the watertight joints is determined according to the number of the water collecting bottles and is n +1, one core is a power supply common end of other electromagnetic valves, and the other cores are connected with power supply input ends of the electromagnetic valves at various points;
the electromagnetic valve comprises a movable iron core, a coil wound on the circumferential direction of the movable iron core, a static iron core arranged at the end part of the movable iron core, a shell connected with the outer side of the coil, a control line connected with the coil and a reset spring arranged on the movable iron core.
In a further embodiment, the interior of the electromagnetic valve cabin is filled with inert mineral oil, and the exterior of the electromagnetic valve cabin is provided with an oil-resistant rubber membrane.
In a further embodiment, the release mechanism comprises a release cover plate, a support arranged on the release cover plate, a unhooking arranged on the support, a driving motor arranged on the release cover plate and positioned in the sealed cabin, a sealed disk fixedly arranged on the release cover plate, a first protective sleeve arranged on the sealed disk, a screw arranged on the first protective sleeve, and a screw which is used for propping against an unhooking stop block at the lower end of the protective sleeve, wherein the screw effectively supports the connecting shaft by adjusting the length of the screw extending into the protective sleeve, so that the additional loading force on the motor shaft and the rotation friction force of an O-shaped ring caused by the suspension of the tail end of the connecting shaft are avoided.
The driving motor comprises a motor, a connecting shaft connected with the motor, a connecting sleeve fixed on the motor, and two-position limit switches fixed at two ends of the connecting sleeve;
the part of the connecting shaft extending out of the sealing bin is positioned in the first protective sleeve, and a unhooking stop block is fixed at the tail end of the connecting shaft; the other end of the unhooking block is lapped on the unhooking stop block;
at least two grooves are arranged on the connecting shaft, and the upper surfaces of the grooves are matched with O-shaped rings.
In a further embodiment, the cutting device comprises a circular frame arranged on the outer shell, a supporting plate arranged on the circular frame, a driving motor arranged on the circular frame, a cylinder connected to the driving motor, and a plurality of cutting blades arranged on the cylinder;
the cutting blade is designed into a blade type, one side of the cutting blade is connected with the cylinder, and the other end of the cutting blade is connected with the supporting plate.
In a further embodiment, the cutting blade is made of stainless steel;
a second protective sleeve is arranged at the end part of the circular frame, and the protective groove is designed into a convex shape;
the second protective sheath includes the installation face, two recesses have been set up to the higher authority of installation face, the adaptation has the sealing washer in the recess.
In a further embodiment, the stress of the water collection bottle in the rising process is B:
FL＝ρ*g*v (2)
in the formula: s displacement in a first direction;
w is the self weight of the water sampler;
f-buoyancy in seawater;
d, seawater resistance in the motion process is opposite to the motion direction;
rho-sea water density, rho 1026Kg3/m；
V is the water drainage volume of the water sampler;
g-acceleration of gravity, g being 9.8m/s2；
The water collecting bottle D comprises:
u is the movement speed of the water sampler;
ρ — moving medium (seawater) density;
a-the incident flow area of the water sampler (projected area in the plane perpendicular to the flow at infinity);
Cdthe total resistance coefficient of the water sampler is a dimensionless coefficient and only relates to the Reynolds number when the surface roughness of the object and the pulsation of the environmental fluid are not considered;
wherein the acting force of the fluid received in the horizontal direction is F;
F＝0.5ρs0CDV2(4)
static balance in horizontal direction is F ═ TH。
In a further embodiment, a method of operating a self-returning water recovery device for use in a hydrological exploration, comprising the steps of:
step 1, switching on a power supply, initializing, and receiving an instruction of an upper computer;
step 4, setting a preset depth value on a human-computer interaction interface;
step 6, after the conversion is completed, the pressure sensor sends an instruction and stores a feedback value;
step 7, converting the pressure value from ASCII to compressed BCD, comparing the pressure value with a preset value, judging whether the preset throwing weight depth is reached, if the preset depth is not met, repeating the step 5 to the step 7, and if the preset depth is not met, judging that the pressure value is qualified;
and 9, repeating the steps 5 to 7, judging whether the water sampling depth is qualified again, if not, repeating the steps 5 to 7, if the water sampling depth is qualified, closing the water sampling bottle clamp covers of the n water sampling bottles, judging whether the last bottle is obtained, if not, continuously repeating the steps 5 to 7, and then ending.
Has the advantages that: the invention discloses an automatic return type water collection device based on hydrological exploration, which is characterized in that a cutting device is arranged in the circumferential direction of a water collection bottle, redundant seaweed is cut off by the cutting device in the process of sampling descending, the bottle can descend to a set depth smoothly, the smooth process of setting is ensured, meanwhile, a positioner is arranged on the water collection bottle, the position of the water collection bottle can be monitored in real time conveniently, the depth is known by a pressure sensor, errors caused by practical steel wire rope metering are avoided, a balance weight body is released by starting a release mechanism, then the water collection bottle is floated by positive buoyancy, and section sampling is completed in the process of floating.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial view of the capsule of the present invention;
FIG. 3 is a cross-sectional view of the release mechanism of the present invention;
FIG. 4 is a cross-sectional view of the closure mechanism of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a front view of the cutting device of the present invention;
FIG. 7 is a top view of the main housing of the present invention;
FIG. 8 is a partial cross-sectional view of the pin of the present invention;
fig. 9 is a flow chart of the operation of the present invention.
The reference signs are: main housing 1, sealed cabin 101, support rod 102, sensor backing plate 103, pressure sensor 104, support 105, drying agent 106, circuit board 107, release mechanism 2, release cover 201, release support 202, unhook 203, driving motor 204, sealing disc 205, first protective sleeve 206, screw 207, motor 208, connecting shaft 209, connecting sleeve 210, limit switch 211, unhook stopper 212, closing mechanism 3, solenoid valve cabin 301, closing end cover 302, solenoid valve 303, pin positioning frame 304, pin 305, top plate 306, solenoid valve washer 307, baffle 308, groove 309, O-ring 310, plunger 311, coil 312, stationary core 313, housing 314, control line 315, return spring 316, watertight connector 317, fixing ring 4, water sampling bottle 5, cutting device 6, circular frame 601, support plate 602, cutting motor 603, cylinder 604, cutting blade 605, second protective sleeve 606, mounting surface 607, And a seal ring 608.
Detailed Description
Through research and analysis of the applicant, in the prior art, in order to adapt to the environmental pollution detection of water bodies, the development of hydrological physical observation and biogeochemical research, a manual water sampler, a mechanical water sampler and an automatic water sampler are respectively provided, when the water sampler in the prior art samples, the hammer is driven to slide down along the sampling cable, the hammer starts the bottle cap closing device, the elastic force of the spring or the rubber band on the bottle drives the bottle caps at two ends to be tightly closed, and a water sample is collected, however, the adoption needs to throw the water sampler into rivers, lakes and oceans by utilizing the external force of the ship, and the water sampler needs to be taken up by external force during sampling, because underwater is a great number of invariable factors, the underwater robot can not be lowered to the set depth for use, when the seaweed is wound on the water sampler, the seaweed cannot fall off, and the seaweed can be released only by artificial submergence. In light of these problems, the applicant proposes a self-returning water collecting device for hydrological exploration, which comprises the following specific scheme.
An automatic return type water collecting device for hydrological exploration comprises a main shell 1, a releasing mechanism 2, a closing mechanism 3, a water collecting bottle 5, a cutting mechanism and the like. The release structure sets up main casing body 1 one end, closing mechanism 3 sets up main casing body 1's the other end, at least 4 groups fixed ring cover 4 fixed mounting be in main casing body 1's circumference, water sampling bottle 5 sets up the higher authority of fixed ring cover 4, cutting device 6 sets up water sampling bottle 5's circumference is used for cutting pasture and water.
Wherein the main housing 1 comprises a sealed cabin 101, a support rod 102, a sensor pad 103, a pressure sensor 104, a support 105, a drying agent 106 and a circuit board 107; the main casing body 1 designs into hollow structure's cylinder type, and the material selection of cylinder barrel is easy, the preparation processing is convenient, and the available space of inner chamber is big, pressure-resistant capability is strong, therefore main casing body 1 designs into the cylinder type, branch 102 sets up sealed storehouse 101 inside and the spiro union is in the higher authority of closing mechanism 3, sensor backing plate 103 fixed mounting is in the higher authority of branch 102, pressure sensor 104 sets up on sensor backing plate 103, circuit board 107 sets up on sensor backing plate 103, support 105 spiro union is in the top of branch 102, drier 106 is placed the inside of sealed storehouse 101 and be located near circuit board 107, a plurality of screw hole has been set up on the terminal surface of main casing body 1, and main casing body 1 adopts LY12 model heat treatment to strengthen the aluminium preparation completion, the control system of water sampling bottle 5 mainly comprises pressure sensor 104 and circuit board 107, the pressure sensor 104 compensates pressure signals by adopting the output of the quartz temperature sensor, the sensor can be used in a wide temperature range of-50-107 ℃, and preheating is not needed. In order to facilitate data format, the single chip microcomputer on the circuit board 107 is in communication connection with the pressure sensor 104, and when the water collection bottle 5 works in water, the single chip microcomputer continuously sends a pressure reading instruction to the pressure sensor 104, continuously receives a pressure value fed back by the pressure sensor 104, and compares the pressure value with a preset depth value.
Specifically, the working environment of the automatic return water sampling device usually adopts a damp and hot environment, when the automatic return water sampling device is immersed in cold water for working, the seal bin 101 is easy to generate layer condensation, the humidity of the environment can corrode components with poor sealing performance, and welding spots fall off or joints are broken. The desiccant 106 is thus placed near the circuit board 107.
The release mechanism 2 comprises a release cover plate 201, a release bracket 202, a release hook 203, a driving motor 204, a sealing disc 205, a first protection sleeve 206, a screw 207, a motor 208, a connecting shaft 209, a connecting sleeve 210, a limit switch 211 and a release hook stopper 212; wherein the release cover 201 is disposed at the end of the main housing 1, the release bracket 105 is disposed above the release cover 201, the release hook 203 is disposed above the release bracket 105, the driving mechanism is disposed above the release cover 201 and inside the capsule 101, the sealing disc 205 is fixedly mounted above the release cover 201, the first protection sleeve 206 is disposed above the sealing disc 205, and the screw 207 is disposed above the first protection sleeve 206; the motor 208 is arranged on the released cover plate 201 and located inside the sealed cabin 101, the connecting shaft 209 is connected with the driving motor 204, the connecting sleeve 210 is fixed on the motor 208, and the two-position limit switch 211 is fixed at two ends of the connecting sleeve 210.
Specifically, the part of the connecting shaft 209 extending out of the sealed cabin 101 is located inside the first protective sleeve 206, and a unhooking stop 212 is fixed at the end of the connecting shaft 209; the other end of the unhooking block 203 is lapped on the unhooking stop block 212; the trip hook 203 stop is made of 304 stainless steel in consideration of the softer duralumin alloy material. The unhooking bracket 105 is welded on the outer side of the releasing end cover, one end of the unhooking 203 is connected with the unhooking 203 bracket 105 through a bolt in a rotating mode and can rotate freely around the bolt, the other end of the unhooking 203 is overlapped on the unhooking stop block 212 when a counterweight body is hung, at least two grooves 309 are formed in the connecting shaft 209, and OO rings 310 are matched on the upper faces of the grooves. The unhooking stop block 212 is used as a supporting unhooking 203, is positioned in the sheath, is fixed at the tail end of the connecting shaft 209 by the screw 207, and effectively supports the connecting shaft 209 by adjusting the length of the screw 207 extending into the sheath, so that the extra loading force on the shaft of the motor 208 and the rotation friction force of an O-shaped ring increased due to the suspension of the tail end of the connecting shaft 209 are avoided. By using a screw 207 to abut against the unhooking stop 212 at the lower end of the sheath, the purpose is to effectively support the connecting shaft 209 by adjusting the length of the screw 207 extending into the sheath, thereby avoiding additional loading force on the shaft of the motor 208 and increasing the rotating friction force of the O-shaped ring due to the suspension of the tail end of the connecting shaft 209.
Specifically, before entering water, the counterweight body is suspended. The initial state is that the unhooking block 203 is in a free state, can freely rotate around a bolt on a bracket 105 of the unhooking block 203, is not supported by the unhooking block 212, and the screw 207 is driven by the motor 208 to abut against the limit switch 211, at the moment, a counterweight body can be hung on the unhooking block 203, the unhooking block 203 is held by hands and is placed at the gap of the unhooking block 203, at the moment, once the motor 208 is electrified, the armature current direction of the motor 208 is reversed, the rotation direction is reversed, the limit switch 211 sends a 'hooking' signal to a control system, the motor 208 is electrified, the rotation direction is from the limit switch 211S-load to the limit switch 211S-load, the motor 208 drives the screw 207 and the unhooking block 212 to rotate until the limit screw 207 abuts against the limit switch 211S-load, the motor 208 is powered off, the shaft of the motor 208 and the connecting shaft 209 stop rotating, so that the unhooking block 212 rotates 90 degrees along with the screw, at this time, the trip 203 stopper can support the trip 203, and the counterweight body is stably suspended. After the counterweight body is hung, the water collecting bottle 5 enters water and freely dives under the action of negative buoyancy in the water; when the water collecting bottle 5 reaches the preset depth of releasing the counterweight body, the control system enables the motor 208 to be electrified to drive the limit screw 207 to rotate, the direction is from the limit switch 211S-load to the limit switch 211S-lose at the moment, the stop block of the unhooking 203 rotates along with the connecting shaft 209, the unhooking 203 loses support, the unhooking 203 is separated from the gap of the sheath, and the counterweight body is released and falls off along with the stop block.
The closing mechanism 3 comprises a solenoid valve chamber 301, an end cover 302, a solenoid valve 303, a pin positioning frame 304, a pin 305, a top plate 306, a solenoid valve gasket 307, a baffle 308, a groove 309, an O-shaped ring 310, a movable iron core 311, a coil 312, a static iron core 313, a shell 314, a control line 315, a return spring 316 and a watertight joint 317; wherein the electromagnetic valve chamber 301 and the main housing 1 are connected together, the closing end cover 302 is screwed on the electromagnetic valve chamber 301, the electromagnetic valves 303 are screwed on the electromagnetic valve 303 bin 301 in the same number as the water collecting bottles 5, the pin 305 positioning frame 304 is arranged on the upper surface of the closing end cover 302, the pin 305 is inserted on the pin 305 positioning frame 304, the top plate 306 is screwed on the closing end cap 302, the rubber membrane is arranged on the closing end cap 302 and is positioned at the end face of the top plate 306, the watertight joint 317 is arranged above the chamber 301 of the electromagnetic valve 303, the electromagnetic valve gasket 307 is arranged above the inner wall of the chamber 301 of the electromagnetic valve, the baffle 308 is arranged inside the solenoid valve cabin 301 and connected with the solenoid valve 303 and the watertight connector 317, and the baffle 308 is made of epoxy resin plate materials.
Specifically, grooves 309 are respectively formed in the circumferential direction of the end cover of the water collection bottle 5 and the circumferential direction of the electromagnetic valve chamber 301, OO rings 310 are adapted in the grooves 309, the number of cores of the watertight connector 317 is determined according to the number of the water collection bottles 5 and is n +1, one core is a power supply common end of other electromagnetic valves 303, and the other core is connected with a power supply input end of each point electromagnetic valve 303; the electromagnetic valve 303 comprises a movable iron core 311, the coil 312 is wound around the movable iron core 311, the stationary iron core 313 is arranged at the end of the movable iron core 311, the outer shell 314 is clamped at the outer side of the coil 312, the control line 315 is connected with the coil 312, and the reset spring 316 is arranged on the movable iron wire.
Specifically, in seawater sampling, no matter a plurality of sampling bottles are arranged on a sunflower type water sampling bottle 5 or are directly connected and hung on a hydrological cable, the working principle of opening-closing or closing-opening-closing of the sampling bottles is utilized, namely two clamping covers are opened when the sampling bottles are applied, the bottle body is in a flushing state, after the preset water sampling depth is reached, a signal hammer is released by a system to close the clamping covers, sampling is realized, the water sampling bottle 5 is fixed around the outer part of a cylindrical waterproof pressure-resistant main shell 1, a rubber band with enough strength is arranged in the water sampling bottle 5, and the clamping covers are connected with two end parts of the sampling bottle. The two clamping covers are all connected with a tying line, the tail end of the nylon monofilament of one clamping cover is tied into a hanging ring, the tail end of the nylon monofilament of the other clamping cover is tied into a round sleeve, the clamping cover of the sampling bottle is opened during sampling, the round sleeve at the tail end of the nylon monofilament penetrates through the hanging ring and is sleeved on a pin shaft 305 located on the pin shaft positioning frame 304, and therefore the sampling bottle is in an open posture and is in place. When each predetermined water production depth is reached, the control system energizes the respective solenoid valve 303. After the coil 312 is energized, the magnetic force generated by the stationary core 313 attracts the movable core 311, thereby driving the pin 305 to move toward the solenoid valve chamber 301 rapidly. The movement stroke is 3-5 mm. When the pin 305 moves, the thread tying round sleeve of the water collecting bottle 5 is limited to fall off at the position of the pin 305 positioning frame 304, and the clamping cover is closed along with the pulling force of the rubber rope in the water collecting bottle 5, so that the water collecting task at the depth is completed. When the coil 312 is de-energized, the plunger 311 is reset by the return spring 316.
Specifically, the electromagnetic valve bin 301 is filled with inert mineral oil, so that in order to prevent the mineral oil from entering the main shell 1 under water pressure, an O-shaped ring is additionally arranged on the contact surface of the watertight connector 317 and the bottom of the electromagnetic valve bin 301, and an oil-resistant rubber film is arranged on an outer end cover, so that the balance between the oil pressure in the electromagnetic valve bin 301 and the external water pressure is kept. When the pin shaft 305 is driven by the movable iron core 311 to act, the outside water cannot be brought into the electromagnetic valve 303 bin 301, and the sealing effect is ensured.
The cutting device 6 comprises a circular frame 601, a support plate 602, a cutting motor 603, a cylinder 604, a cutting blade 605, a second protective sleeve 606, a mounting surface 607 and a sealing ring 608; the circular frame 601 is arranged on the shell 314, the supporting plate 602 is arranged on the circular frame 601, the cutting motor 208 is arranged on the circular frame 601, the cylinder 604 is connected on the cutting motor 603, the cutting blade 605 is arranged on the cylinder 604, the cutting blade 605 is in a blade shape, one side of the cutting blade is connected with the cylinder 604, the other side of the cutting blade is connected with the supporting plate 602, and the cutting blade 605 is made of stainless steel; a second protective sleeve 606 is arranged at the end part of the circular frame 601, and the protective groove is designed into a convex shape; the second protective sleeve 606 comprises a mounting surface 607, two grooves 309 are arranged on the mounting surface 607, and sealing rings 608 are fitted in the grooves 309; the plurality of cutting blades 605 are distributed evenly in a ring shape around the axis of the circular frame 601. The rotation of the cutting motor 603 drives the cylinder 604 to rotate, which in turn drives the cutting blade 605 to rotate and cut the surrounding waterweeds or other sundries.
The stress of the water collecting bottle in the rising process is as follows:
FL＝ρ*g*v (2)
in the formula: s displacement in a first direction;
w is the self weight of the water sampler;
f-buoyancy in seawater;
d, seawater resistance in the motion process is opposite to the motion direction;
rho-sea water density, rho 1026Kg3/m；
V is the water drainage volume of the water sampler;
g-acceleration of gravity, g being 9.8m/s2；
The water collecting bottle D comprises:
u is the movement speed of the water sampler;
ρ — moving medium (seawater) density;
a-the incident flow area of the water sampler (projected area in the plane perpendicular to the flow at infinity);
Cd-total drag coefficient of water sampler without considering object surface roughness and environmental flowWhen the body is in pulsation, the total resistance coefficient is a dimensionless coefficient and only relates to the Reynolds number;
wherein the acting force of the fluid received in the horizontal direction is F;
F＝0.5ρs0CDV2(4)
static balance in horizontal direction is F ═ TH。
A working method of an automatic return type water collecting device for hydrological exploration comprises the following steps:
step 1, switching on a power supply, initializing, and receiving an instruction of an upper computer;
step 4, setting a preset depth value on a human-computer interaction interface;
step 6, after the conversion is completed, the pressure sensor 104 sends an instruction and stores a feedback value;
step 7, converting the pressure value from ASCII to compressed BCD, comparing the pressure value with a preset value, judging whether the preset throwing weight depth is reached, if the preset depth is not met, repeating the step 5 to the step 7, and if the preset depth is not met, judging that the pressure value is qualified;
and 9, repeating the steps 5 to 7, judging whether the water sampling depth is qualified again, if not, repeating the steps 5 to 7, if the water sampling depth is qualified, closing the clamping cover of the water sampling bottles 5 for n water sampling bottles 5, judging whether the last bottle is the last bottle, if not, continuously repeating the steps 5 to 7, and then ending. The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.
Claims (10)
1. An automatic return type water collecting device for hydrological exploration is characterized by comprising a main shell, a release mechanism arranged at one end of the main shell, a closing mechanism arranged at the other end of the main shell, at least 4 fixing ring sleeves fixedly arranged on the circumference of the main shell, a water collecting bottle provided with the fixing ring sleeves, and a cutting device arranged on the circumference of the water collecting bottle and used for cutting aquatic plants;
the main casing body comprises a sealed cabin, a support rod arranged in the sealed cabin and screwed on the closing mechanism, a sensor base plate fixedly arranged on the support rod, a pressure sensor and a circuit board arranged on the sensor base plate, a support screwed on the top of the support rod, and a drying agent which is arranged in the sealed cabin and is positioned near the circuit board.
2. The automatic return water sampling device for hydrological exploration, according to claim 1, wherein: the main shell is designed into a cylinder shape with a hollow structure, and the end surface of the main shell is provided with a plurality of threaded holes,
the main shell is made of LY12 model heat-treated reinforced aluminum.
3. The automatic return water sampling device for hydrological exploration, according to claim 1, wherein: the closing mechanism comprises an electromagnetic valve bin connected with the main shell, a closing end cover screwed on the electromagnetic valve bin, electromagnetic valves screwed on the electromagnetic valve bin and having the same number as the water collecting bottles, a pin shaft positioning frame arranged on the closing end cover, a pin shaft inserted on the pin shaft positioning frame, a top plate screwed on the closing end cover, a rubber membrane arranged on the closing end cover and positioned on the end surface of the top plate, a watertight connector arranged on the electromagnetic valve bin, an electromagnetic valve gasket arranged on the inner wall of the electromagnetic valve bin, and a baffle plate arranged in the electromagnetic valve bin and connected with the electromagnetic valves and the watertight connector;
the baffle is made of epoxy resin board material.
4. The automatic return water sampling device for hydrological exploration, according to claim 3, wherein: grooves are respectively formed in the circumferential direction of the water collecting bottle end cover and the circumferential direction of the electromagnetic valve bin, and O-shaped rings are matched in the grooves;
the number of the cores of the watertight joints is determined according to the number of the water collecting bottles and is n +1, one core is a power supply common end of other electromagnetic valves, and the other cores are connected with power supply input ends of the electromagnetic valves at various points;
the electromagnetic valve comprises a movable iron core, a coil wound on the circumferential direction of the movable iron core, a static iron core arranged at the end part of the movable iron core, a shell connected with the outer side of the coil, a control line connected with the coil and a reset spring arranged on the movable iron core.
5. The automatic return water sampling device for hydrological exploration, according to claim 3, wherein: the inside of the electromagnetic valve bin is filled with inert mineral oil, and an oil-resistant rubber membrane is arranged outside the electromagnetic valve bin.
6. The automatic return water sampling device for hydrological exploration, according to claim 1, wherein: the release mechanism comprises a release cover plate, a release bracket arranged on the release cover plate, a unhooking arranged on the release bracket, a driving mechanism arranged on the release cover plate and positioned in the sealed cabin, a sealed plate fixedly arranged on the release cover plate, a first protective sleeve arranged on the sealed plate, and a screw arranged on the first protective sleeve;
the driving mechanism comprises a motor, a connecting shaft connected with the motor, a connecting sleeve fixed on the motor, and two-position limit switches fixed at two ends of the connecting sleeve;
the part of the connecting shaft extending out of the sealing bin is positioned in the first protective sleeve, and a unhooking stop block is fixed at the tail end of the connecting shaft; the other end of the unhooking block is lapped on the unhooking stop block;
at least two grooves are arranged on the connecting shaft, and the upper surfaces of the grooves are matched with O-shaped rings.
7. The automatic return water sampling device for hydrological exploration, according to claim 1, wherein: the cutting device comprises a circular frame arranged on the outer shell, a supporting plate arranged on the circular frame, a cutting motor arranged on the circular frame, a cylinder connected to the cutting motor, and a plurality of cutting blades arranged on the cylinder;
the cutting blade is designed into a blade type, one side of the cutting blade is connected with the cylinder, and the other end of the cutting blade is connected with the supporting plate.
8. The automatic return water recovery device for hydrological exploration, according to claim 7, wherein; the cutting blade is made of stainless steel;
a second protective sleeve is arranged at the end part of the circular frame, and the protective groove is designed into a convex shape;
the second protective sleeve comprises a mounting surface, two grooves are formed in the mounting surface, and sealing rings are matched in the grooves;
the cutting blades are distributed in an annular and uniform manner by taking the axis of the circular frame as the center.
9. The automatic return water collection device for hydrological exploration, according to claim 1, wherein the water collection bottle is stressed in the ascending process:
FL＝ρ*g*v (2)
in the formula: s displacement in a first direction;
w is the self weight of the water sampler;
f-buoyancy in seawater;
d, seawater resistance in the motion process is opposite to the motion direction;
rho-sea water density, rho 1026Kg3/m；
V is the water drainage volume of the water sampler;
g-acceleration of gravity, g being 9.8m/s2；
The water collecting bottle D comprises:
u is the movement speed of the water sampler;
ρ — moving medium (seawater) density;
a-the incident flow area of the water sampler (projected area in the plane perpendicular to the flow at infinity);
Cdthe total resistance coefficient of the water sampler is a dimensionless coefficient and only relates to the Reynolds number when the surface roughness of the object and the pulsation of the environmental fluid are not considered;
wherein the acting force of the fluid received in the horizontal direction is F;
F＝0.5ρs0CDV2(4)
static balance in horizontal direction is F ═ TH。
10. A working method of an automatic return type water collecting device for hydrological exploration is characterized by comprising the following steps:
step 1, switching on a power supply, initializing, and receiving an instruction of an upper computer;
step 2, judging the operation stage, performing self-checking by an operator, inputting an assumed pressure value through a human-computer interaction interface, checking whether the counterweight device can be released and whether the water collection bottle can be normally closed, and judging the motion state of the water collection bottle;
step 3, starting sampling work when the water collecting bottle is judged to be not abnormal;
step 4, setting a preset depth value on a human-computer interaction interface;
step 5, converting the prefabricated direct current from ASCI I into compressed BCD;
step 6, after the conversion is completed, the pressure sensor sends an instruction and stores a feedback value;
step 7, converting the pressure value from ASCI I to compressed BCD, comparing the pressure value with a preset value, judging whether the preset throwing weight depth is reached, if the preset depth is not met, repeating the step 5 to the step 7, and if the preset depth is not met, judging that the preset depth is qualified;
step 8, if the control system is judged to be qualified, the electromagnetic valve is powered on, after the coil is powered on, the movable iron core is attracted by the magnetic force generated by the static iron core, the first water collection bottle wire is sleeved at the pin shaft positioning frame and falls off in a limited mode, the clamping cover is closed under the action of the tensile force of the rubber rope in the water collection bottle, then the sampling effect is completed, and the movable iron core is reset under the action of the reset spring after the coil is powered off;
and 9, repeating the steps 5 to 7, judging whether the water sampling depth is qualified again, if not, repeating the steps 5 to 7, if the water sampling depth is qualified, closing the water sampling bottle clamp covers of the n water sampling bottles, judging whether the last bottle is obtained, if not, continuously repeating the steps 5 to 7, and then ending.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010549000.2A CN111579310A (en) | 2020-06-16 | 2020-06-16 | Automatic return type water collection device based on hydrological exploration and working method thereof |
| PCT/CN2020/096935 WO2021253364A1 (en) | 2020-06-16 | 2020-06-19 | Automatically-returning water sampling device for hydrological exploration and working method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010549000.2A CN111579310A (en) | 2020-06-16 | 2020-06-16 | Automatic return type water collection device based on hydrological exploration and working method thereof |
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| CN111579310A true CN111579310A (en) | 2020-08-25 |
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| CN202010549000.2A Pending CN111579310A (en) | 2020-06-16 | 2020-06-16 | Automatic return type water collection device based on hydrological exploration and working method thereof |
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| WO (1) | WO2021253364A1 (en) |
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