CN105547750B - Water conservancy fine sediment of reservoir water sample acquisition device and its method for sampling - Google Patents

Abstract

The water conservancy reservoir silt water sample collection device is characterized in that it includes a main frame, water extractors are evenly distributed around the outer wall of the main frame, the main gear is installed on the top of the main frame, and a swing arm is installed on the main gear. Connected to the top of the swing arm, the side of the main gear is meshed with a motor-rotating auxiliary gear, and a mud fetching device is installed on the inside of the main frame; compared with the prior art, the present invention has the following advantages: 1. When the earth taker is pressurized to press down to take soil, the bottom surface of the reservoir bottom of the whole device is fixed firmly to ensure successful collection; 2. In addition to taking soil samples, it can also take water samples, and the function is increased ; 3. The mudguard of the earth taker works stably, and automatically rebounds through the spring to block the earth taker.

Description

Water conservancy reservoir sludge water sample collection device and sampling method thereof

technical field

The invention belongs to the technical field of water conservancy engineering, and in particular relates to a water conservancy reservoir sludge water sample collection device and a sampling method thereof.

Background technique

Reservoirs are generally interpreted as "hydraulic engineering structures that hold back flood water and regulate water flow, and can be used for irrigation, power generation, flood control and fish farming." It refers to artificial lakes formed by building dams at the narrow mouths of ravines or rivers . After the reservoir is completed, it can play the roles of flood control, water storage for irrigation, water supply, power generation, and fish farming. Sometimes natural lakes are also called reservoirs (natural reservoirs). The size of the reservoir is usually divided according to the size of the storage capacity, and can be divided into small, medium, large and so on. Some reservoirs are the main source of urban water supply, so the requirements for water quality are very high. At present, the method of sampling and testing is mostly used to evaluate and monitor the water quality of the reservoirs to ensure water safety.

For example, the patent announcement number CN202351084U discloses a water collection device with controllable closing device, including a water collection container, an upper sealing cover, a lower sealing cover, a bracket, a movable bolt, a release pull cord and an upper sealing cover clamping part, and the bracket is installed On the water collection container, the movable bolt can slide up and down and be inserted in the bracket, the release pull cord is connected to the upper end of the movable bolt, the clamping part of the upper sealing cover is installed at the lower end of the movable bolt, and the upper sealing cover is connected to the upper part of the water collection container And clamped in the clamping part of the upper sealing cover, the lower sealing cover is connected with the lower part of the water collection container and is set in linkage with the upper sealing cover, and the upper sealing cover and the lower sealing cover tend to cover the upper and lower parts of the water collection container respectively . Preferably, it may also include a connecting piece, an elastic component, a semicircular handle, a water collection device sling and a thermometer, and a water collection port is opened on the lower side of the water collection container. The utility model has ingenious design, complete water body exchange in the water body collection process, good sealing, small sampling error, and is suitable for large-scale popularization and application.

Another example is CN104677677A, which discloses a drop-in water collection system, aiming to provide a drop-in water collection system that can conveniently and accurately collect water samples within a specific distance above the seabed. It includes a trigger device, a trigger counterweight, a settling counterweight, several water sample collectors and a winch arranged on the hull; the trigger device includes a vertically arranged trigger cylinder, which can be slidably arranged on The piston body and the lower piston body are connected with the first connecting rod of the upper and lower piston bodies, the second connecting rod arranged in the middle part of the lower end surface of the lower piston body and the buoyancy device on the outer surface of the trigger cylinder.

At present, the physical performance index of the sediment is usually obtained in the following ways: 1. Anchor type sediment soil collection device, the collection device is dropped into the bottom of the reservoir by using the anchored form, and the bottom sediment soil is pulled into the device by starting the tugboat, and then taken It is transported ashore to the laboratory for testing, but this method is very prone to water loss disturbance, resulting in deviations between indoor test results and actual results; 2. Using in-situ testing, the high-precision in-situ testing instrument is directly driven into the sedimentary soil, The test is carried out directly, but the sedimentary soil parameters measured by this method are few, and the cost of the instrument is very high, and the operation requirements of the instrument are also very high. Simultaneously, a lot of equipments only have the function of taking water, but not the function of taking mud. Therefore, it is an urgent problem to be solved at present to provide a kind of sampler which can not only take water but also take mud.

Contents of the invention

The invention provides a sampler capable of taking both water and mud to solve the shortcomings of the existing sampler.

In order to solve the above problems, the scheme adopted by the present invention is as follows:

The water conservancy reservoir silt water sample collection device is characterized in that it includes a main frame, the outer wall of the main frame is uniformly equipped with water collectors, the main gear is installed on the top of the main frame, and the main gear is equipped with a swing arm, a pressure wheel Connected to the top of the swing arm, the side of the main gear is meshed with a motor-rotating auxiliary gear, and the inner side of the main frame is equipped with a mud removal device;

The water fetcher includes a shell, the bottom cover is installed on the bottom end surface of the shell, a spring 1 is installed in the shell, the water discharge piston is mounted on the top of the spring 1 and protrudes to the outside of the shell, and a collection cup is placed in the spring 1; The mud fetching device includes an outer cover, and the inner wall of the outer cover is provided with a spiral channel; the mud fetching tank is arranged in the outer cover, and its outer wall is provided with a guide ball moving in the spiral channel, and a bearing is installed on the top of the mud fetching pot, so A hydraulic piston rod is installed above the outer cover, and the top end of the hydraulic piston rod is connected to the bearing; the hydraulic piston rod is connected with an oil pressure pipe passing through the main frame to connect with the external hydraulic control device; the four corners of the main frame are also provided with inclined blowing Air pipe, the inclined air blowing pipe is connected with an air delivery pipe. An upper cover is installed on the collection cup, and a water inlet hole is arranged on the upper cover. Preferably, the mud extraction tank is welded and fixed to the outer ring of the bearing, and the hydraulic piston rod is welded and fixed to the inner ring of the bearing. Preferably, a movable baffle is provided on the bottom surface of the outer cover, and the movable baffle is hingedly connected to the outer side of the outer cover. The outer side of the movable baffle is also provided with a spring two connected to the extension bar connecting the outer cover.

Preferably, a base is installed at the four corners of the main frame, and a drill bit driven by the second motor is also installed on the base. Preferably, an infrared camera is installed inside the main frame.

Based on the above-mentioned device, the present invention also provides a water conservancy reservoir silt water sample collection device for deep reservoir sampling method, characterized in that, comprising the following steps:

1) Determine the interval depth between the soil sample collection point and the water body collection, and lower the water conservancy reservoir silt water sample collection device to the collection point through the lifting equipment;

2) Control the second forward rotation of the motor through the cable signal line, so that the drill bit can be driven into the mud;

3) Control the hydraulic control device to pressurize the oil pressure pipe to press down the hydraulic piston rod. Since there is a guide ball outside the mud extraction tank, the mud extraction tank rotates down the spiral channel under the action of the hydraulic piston rod stretching and pressing down. Press the top and open the movable baffle to drive into the reservoir silt and cut the soil sample;

4) After the collection, control the hydraulic control device again to pressurize the oil pressure pipe to shrink the hydraulic piston rod back to its position, drive the mud extraction tank to retract into the outer cover, and the soil extraction operation is completed;

5) Control the second reverse rotation of the motor through the cable signal line again, so that the drill bit is reversed in the mud, and at the same time use the lifting device to pull the water conservancy reservoir mud water sample collection device to float;

6) After arriving at the water collection layer, the motor 1 drives the auxiliary gear to rotate to drive the main gear to rotate, so that the swing arm moves, so that the pressure wheel presses down the water discharge piston in sequence, so that there is a gap inside the shell. At this time, the depth of the water layer The water sample flows into the collection cup along the gap;

7) Use the lifting equipment to pull the water conservancy reservoir silt water sample collection device to float up, and repeat step 6) to collect water bodies in each water layer until the set collection task is completed;

8) Transport gas to the inclined air blowing pipe, so that the inclined air blowing pipe can blow air to generate thrust, so as to ensure the stable recovery of the collection device;

9) Lift the water conservancy reservoir silt water sample collection device to the ship, take out the soil and water samples, clean the instrument, and the collection operation is completed.

Compared with the prior art, the present invention has the following advantages: 1. When hydraulically pressurizes the earth taker to make it press down to take soil, the bottom surface of the reservoir of the whole device is fixed firmly, which can ensure successful collection; 2. In addition to soil samples, water samples can also be taken, and the function has been increased; 3. The fender of the soil fetcher works stably, and automatically rebounds through the spring to block the soil fetcher.

Description of drawings

Fig. 1 is the structural representation of the water conservancy reservoir sludge water sample collecting device of the present invention;

Fig. 2 is the upward view structure schematic diagram of the water conservancy reservoir sludge water sample collection device of the present invention;

Fig. 3 is the structural representation of mud taking device of the present invention;

Fig. 4 is a schematic diagram of the internal structure of the mud extracting device of the present invention;

Fig. 5 is a schematic diagram of the internal structure of the water dispenser of the present invention;

Fig. 6 is a schematic diagram of the front view of the water conservancy reservoir sludge water sample collection device of the present invention;

Fig. 7 is a further detailed structural schematic diagram of 4.

Detailed ways

The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

As shown in the figure, the water conservancy reservoir silt water sampling device includes a main frame 7, the outer wall of the main frame 7 is uniformly equipped with water extractors 1 around the outer wall, the main gear 5 is installed on the top of the main frame 7, and the main gear 5 A swing arm 3 is installed, and the pressure wheel 2 is connected to the top of the swing arm 3. The side of the main gear 5 is meshed with a secondary gear 6 driven by a motor, and the inside of the main frame 7 is equipped with a mud-taking device 24. The four corners of the main frame 7 are also provided with inclined air blowing pipes 72 , and the inclined air blowing pipes 72 are connected with air delivery pipes 71 . The air delivery pipe 71 passes through the suspension ring 73 fixed on the main frame 7, so that the air delivery pipe 71 will not run around during air delivery, and by blowing air during the recovery process, the bottom of the main frame 7 has a thrust to speed up the recovery . An upper cover 1062 is installed on the collection cup 106 , and a water inlet hole 1061 is provided on the upper cover 1062 .

The water dispenser 1 comprises a casing 101, a bottom cover 105 is installed on the bottom end surface of the casing 101, a spring one 104 is installed in the casing 101, a water discharge piston 103 is installed on the top of the spring one 104 and protrudes to the outside of the casing 101, and the spring A collection cup 106 is placed inside the -104.

When carrying out the water intake operation, the water discharge piston 103 is held by the spring 104 so that the casing 101 is in a sealed state, and the main gear 5 is driven by the auxiliary gear 6 to rotate 360 degrees to sequentially pressurize the water discharge piston 103 to make the water discharge piston 103. Pressure leaks out breach, makes water flow in the collection cup 106.

Getting mud device 24 comprises outer cover 11, and the inner wall surface of described outer cover 11 is provided with spiral channel 17; Get mud tank 16 and is arranged in the outer cover 11, and its outer wall is provided with the guide ball 19 that moves in spiral channel 17, gets mud tank Bearing 18 is installed on the top of 16, and hydraulic piston rod 20 is installed above the outer cover 11, and the top of the hydraulic piston rod 20 is connected with bearing 18; wherein: the outer ring of mud pot 16 and bearing 18 is welded and fixed, and the hydraulic piston rod 20 It is welded and fixed with the inner ring of the bearing 18. With this design, when the hydraulic piston rod 20 is pressed down, the hydraulic piston rod 20 is connected to the inner ring of the bearing 18, so it will not rotate, and the outer ring of the mud pot 16 and the bearing 18 The ring is welded and fixed, so that it can rotate along the spiral channel 17 to collect in the mud after being under pressure, so that the speed of driving is fast. The hydraulic piston rod 20 is connected with an oil pressure pipe 4 passing through the main frame 7 and connected with an external hydraulic control device. The hydraulic control device controls and pressurizes the oil pressure pipe 4 to make the hydraulic piston rod 20 expand and contract, so that the mud fetching tank 16 can carry out the collecting operation. A movable baffle 13 is provided on the bottom surface of the outer cover 11, and the movable baffle 13 is hingedly connected with the outer side of the outer cover 11. The outer side of the movable baffle 13 is also provided with a spring 2 15 to be connected with the elongated bar connecting the outer cover 11 . There is a central column 161 in the center of the mud extraction tank 16, and the mud collection tanks 162 are evenly arranged on the central column 161. With this design, when the mud extraction tank 16 is completed and returned to its original position, the soil sample is trapped in the mud collection tank 16. Can not fall in the groove 162. After the collection is completed, in order to prevent the silt soil sample from falling, the movable baffle 13 will block the mud tank 16 to ensure successful collection.

Main frame 7 four jiaos are also equipped with base 10, and the drill bit 9 that motor 2 8 drives is also installed on described base 10. When collecting, in order to prevent that the whole device is propped up when the mud pot 16 is collected, before collecting, utilize the motor two 8 to drive the drill bit 9 to drill down, so that the device is stable when collecting. Infrared camera 25 is also installed in main frame 7 inboards, is used for imaging, is also provided with explosion-proof lamp next to infrared camera 25, makes operating personnel can see clearly and gathers the operation situation.

Based on the above-mentioned device, the present invention also provides a water conservancy reservoir silt water sample collection device for deep reservoir sampling method, characterized in that, comprising the following steps:

1) Determine the interval depth between the soil sample collection point and the water body collection, and lower the water conservancy reservoir silt water sample collection device to the collection point through the lifting equipment;

2) Control the motor 28 to rotate forward through the cable signal line, so that the drill bit 9 is driven into the mud;

3) Control the hydraulic control device to pressurize the oil pressure pipe 4 so that the hydraulic piston rod 20 is pressed down. Since the mud extraction tank 16 is provided with a guide rail ball 19, the mud extraction tank 16 moves smoothly under the action of the hydraulic piston rod 20 stretching and pressing down. Rotate with the spiral channel 17 and press down to open the movable baffle 13 and push into the reservoir mud to cut the soil sample;

4) After the collection, control the hydraulic control device again to pressurize the oil pressure pipe 4 so that the hydraulic piston rod 20 shrinks back to its position, and drives the mud fetching tank 16 to retract into the outer cover 11, and the soil fetching operation is completed;

5) Control the motor 2 8 to reverse again through the cable signal line, so that the drill bit 9 is reversed in the silt, and at the same time, pull the silt water sample collection device of the water conservancy reservoir to float up through the lifting device;

6) After arriving at the collection water layer, drive the secondary gear 6 to rotate through the motor 1 to drive the main gear 5 to rotate, so that the swing arm 3 moves, and the pressure wheel 2 presses down the water discharge piston 103 in sequence, so that a gap appears inside the shell 101, and then At this time, the water sample at the depth of the water layer flows into the collection cup 106 along the gap;

7) Use the lifting equipment to pull the water conservancy reservoir silt water sample collection device to float up, and repeat step 6) to collect water bodies in each water layer until the set collection task is completed;

8) Transport gas to the inclined air blowing pipe 72, so that the inclined air blowing pipe 72 is blown to generate thrust, so as to ensure the stable recovery of the collection device;

9) Lift the water conservancy reservoir silt water sample collection device to the ship, take out the soil and water samples, clean the instrument, and the collection operation is completed.

Claims (6)

1. water conservancy fine sediment of reservoir water sample acquisition device, it is characterised in that：Including main frame (7), main frame (7) the outer wall surrounding is uniform Device for fetching water (1) is installed, master gear (5) is arranged on the top of main frame (7), swing arm (3) is provided with the master gear (5), Pinch roller (2) is connected at the top of swing arm (3), and master gear (5) side is engaged with the pinion (6) that motor one drives rotation, Silt dredging device (24) is installed on the inside of the main frame (7)；

The device for fetching water (1) includes shell (101), and bottom (105) is arranged on the bottom face of shell (101), the shell (101) Spring one (104) is inside installed, the piston that discharges water (103) is arranged at the top of spring one (104) and protrudes into the outer of shell (101) Portion, the spring one (104) is interior to be placed with acquisition cup (106)；

The silt dredging device (24) includes outer cover (11), and the internal face of the outer cover (11) is laid with spiral channel (17)；Take mud Tank (16) is laid in outer cover (11), and its outer wall is provided with the guide rail ball (19) in spiral channel (17) motion, takes mud tank (16) to push up Portion is provided with bearing (18), and liquid presses piston pole (20), liquid presses piston pole (20) top are provided with above the outer cover (11) It is connected with bearing (18)；The liquid presses piston pole (20) is connected with oil pressure pipe (4) through main frame (7) and external hydraulic control device Connection；Lid (1062) is installed, the upper lid (1062) is provided with inlet opening (1061) on the acquisition cup (106).

2. water conservancy fine sediment of reservoir water sample acquisition device according to claim 1, described to take mud tank (16) and bearing (18) Outer shroud is welded and fixed, and the inner ring of liquid presses piston pole (20) and bearing (18) is welded and fixed.

3. water conservancy fine sediment of reservoir water sample acquisition device according to claim 1, outer cover (11) bottom face is provided with activity Baffle plate (13), the sideboard (13) use with outer cover (11) outer side edges and are articulated and connected.

4. water conservancy fine sediment of reservoir water sample acquisition device according to claim 3, sideboard (13) outer side edges are also set There is spring two (15) to be connected with being connected the elongated bars of outer cover (11).

5. the water conservancy fine sediment of reservoir water sample acquisition device according to any one in claim 1-4, main frame (7) corner Base (10) is also equipped with, the drill bit (9) of motor two (8) drive is also equipped with the base (10).

6. a kind of method that reservoir sampling is carried out using water conservancy fine sediment of reservoir water sample acquisition device as claimed in claim 1, its It is characterised by, comprises the following steps：

1) gap depth of soil sample collection point and water body collection is determined, water conservancy fine sediment of reservoir water sampling is transferred by lifting appliance Device reaches collection point；

2) rotated forward by cable signal line traffic control motor two (8), drill bit (9) is squeezed into mud；

3) control hydraulic control device carries out pressurization to oil pressure pipe (4) pushes liquid presses piston pole (20), due to taking mud tank (16) Outside is provided with guide rail ball (19), takes mud tank (16) to be revolved in the case where liquid presses piston pole (20) extends suppressing action along spiral channel (17) The sideboard (13) that bears down on one out under turning squeezes into fine sediment of reservoir inscribe soil sampling；

4) controlling hydraulic control device to carry out pressurization to oil pressure pipe (4) after collection again shrinks back liquid presses piston pole (20) Position, drive take mud tank (16) to withdraw in outer cover (11), and operation of fetching earth is completed；

5) inverted again by cable signal line traffic control motor two (8), drill bit (9) is inverted in mud, while pass through lifting Equipment pulls water conservancy fine sediment of reservoir water sample acquisition device to float；

6) after reaching collection water layer, drive pinion (6) rotation to drive master gear (5) to rotate by motor one, make swing arm (3) Motion, makes pinch roller (2) sequentially push the piston that discharges water (103), makes gap occur on the inside of shell (101), now the water layer The water sample of depth is flowed into acquisition cup (106) along gap；

7) water conservancy fine sediment of reservoir water sample acquisition device is pulled to float by lifting appliance, and constantly repeat step 6) each water layer is entered Water-filling body gathers, untill completing to set acquisition tasks；

8) conveying gas is carried out to tilting gas blow pipe (72), inclination gas blow pipe (72) is carried out generation thrust of blowing, it is ensured that collection The stable recovery of floating of device；

9) water conservancy fine sediment of reservoir water sample acquisition device is lifted on ship, takes out soil sample and water sample, carry out instrument clean, collection is made Industry is completed.