CN2885849Y

CN2885849Y - Device for simulating re-suspension of sediment in water

Info

Publication number: CN2885849Y
Application number: CNU2006200958721U
Authority: CN
Inventors: 邓南圣; 薛晓飞; 吴峰; 刘建彤; 方涛
Original assignee: Wuhan University WHU
Current assignee: Wuhan University WHU
Priority date: 2006-03-29
Filing date: 2006-03-29
Publication date: 2007-04-04
Anticipated expiration: 2016-03-29

Abstract

The utility model discloses a simulating resuspension of subqqueous deposit device, mainly comprising a motor, an actuator, a rotary wheel, a rocking bar, a plaque, a push rod, a piston, and a simulator, wherein the motor leads the rotary wheel, the rocking bar is positioned on the eccentric center of the rotary wheel, the plaque is positioned on the lower of the rocking bar, the push rods are arranged evenly on the plaque, on the end of the push rod are porous pistons, the motor makes the pistons move forth and back, functioning on the upper water of deposit to form disturbance, thereby realizing resuspension of deposit. This device utilizes pistons with adjustable amplitude and frequency functioning on the water body, and two or more pistons are arranged parallel in this device to better simulate the resuspension process of natural water and simultaneously perform simulation of a plurality of samples.

Description

The device of settling resuspending in a kind of Simulated Water

Technical field

The utility model relates to the device of settling resuspending in a kind of Simulated Water, is the experimental installation that is used for water ecological setting research.

Background technology

Resuspending is meant that the degree of its suspension depends on the size of the external influence intensity of force that is subjected to and the time of effect owing to the water bottom surface deposit is subjected to redistribution that gas, current, mankind's activity and hydrobiological effect or disturbance the produce a kind of phenomenon in the water body.The resuspending effect directly has influence on the research of people for water ecological setting, comprises aspect such as microflora in migration conversion to chemical substance in settling and water termination, water quality, the water body, the settling.Because thereby field study exists the resuspending condition can't unify to control the drawback that produces excessive systematic error, the method of at present general research resuspending is a lab simulation, mainly contain rotary propeller type, oscillatory type and three kinds of analog systems of piston-type, rotary propeller type is to rotate the aerodynamic force disturbance water surface that produces by revolving oar, makes settling resuspending under certain intensity; Oscillatory type is settling to be placed on the reactive force that is produced by vibration on the vibrator settling is suspended; Piston-type is to utilize in the water piston reactive force up and down reciprocatingly to make settling produce resuspending.Rotary propeller type can divide barrel formula and water tank type again in application, thereby by vertical and the water surface or with horizontal plane angled revolve oar disturbance drive water sports in water, and then settling is suspended, but this method is difficult to from the disturbance of a plurality of even angle application of force, so can't really simulate the resuspending process of natural water body, simulation when also can't carry out a plurality of resuspending sample.Oscillatory type is the power that produces the settling resuspending by vibration, the directly simultaneously application of force and water body and all settlings, thus with natural water body in the water body passive movement act on that biological action makes the mechanism of settling resuspending that bigger gap be arranged in settling resuspending and the settling.Therefore two kinds of above methods all can not reasonable simulation natural water body the resuspending process, simulation when can easily not carry out different sediment sample, simulation when can not carry out same settling varying strength.

Summary of the invention

For overcoming the drawback that exists in the prior art, the utility model provide a kind of can be as far as possible near the indoor settling resuspending simulator of natural resuspending process, this device can conveniently be simulated a plurality of resuspending samples and simulation when same resuspending sample carried out varying strength simultaneously.

The technical scheme that the utility model provides is: this device comprises body at least, be installed on the motor on the body and have the transmission rig of runner, motor is a variable-frequency motor, one end of rocking bar is fixedly installed on the eccentric position of runner, the other end of rocking bar then is fixedly installed on the flat board, be fixed with the push-pull rod of dividing into piston on the flat board, piston is a perforated piston.Dull and stereotyped edge is provided with sliding bar, and position corresponding with sliding bar on the body is provided with slideway, and sliding bar is installed in the slideway.Two or two above push-pull rods are installed on the flat board, and each push-pull rod is uniformly distributed on the flat board.

From structure of the present utility model as can be known, this device belongs to piston-type resuspending simulator, it makes settling produce resuspending by a series of disturbances of hole piston in water body arranged side by side, simulate the resuspending process of natural water body better, when having drawn some advantages of several prior aries, overcome several drawbacks that exist in the prior art again.

The apparatus features of settling resuspending is the resuspending that places the hole piston simulation natural water body arranged side by side on the flat board by a series of in the Simulated Water that the utility model provides, it make water body can be subjected to from vertical direction and from oblique multi-faceted power, thereby make settling resuspending process relatively other analogy methods can solve the problem of the resuspending process that other devices can not reasonable simulation natural water body more near the situation of natural water body.This device can realize that a plurality of samples simulate simultaneously, simulation when can carry out different sediment sample again easily, and this device can be adjusted piston amplitude by the position that the adjustment rocking bar is connected on the runner, can adjust the piston vibration frequency by motor, simulation when therefore can realize that same settling carried out varying strength.This device construction is simple, easy to use, can be widely used in to river, lake, etc. the research of natural water body.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present utility model.

Fig. 2 is the runner synoptic diagram.

Fig. 3 is the piston synoptic diagram.

1. transmission rigs among the figure; 2. motor; 3. body; 4. rocking bar set collar; 5. rocking bar set-up piece; 6. sliding bar; 7. slideway; 8. dull and stereotyped; 9. column simulator; 10. standing bolt; 11. plant bottom case; 12. runner; 13. rocking bar interface; 14. runner shaft; 15. rocking bar; 16. push-pull rod; 17. push-pull rod set collar; 18. push-pull rod set-up piece; 19. dw; 20. piston; 21. settling; 22. simulator base; 23. piston hole; 24. connecting hole.

Embodiment

As Fig. 1, Fig. 2, shown in Figure 3, the device of settling resuspending is mainly by motor 2 in the Simulated Water that the utility model provides, runner 12, body 3, rocking bar 15, dull and stereotyped 8, push-pull rod 16, piston 20 and simulator 9 are formed, for adjusting the vibrational frequency of piston 20, motor 2 should be selected frequency modulation motor for use, motor 2 drives runner 12 rotations by transmission rig 1, one end of rocking bar 15 can be connected to (see figure 2) on the rocking bar interfaces 13 different on the runner 12 as required, realization is to the adjustment of piston 20 Oscillation Amplitudes, rocking bar interface 13 all is positioned on the runner 12 runner shaft 14 eccentric positions, rocking bar 15 the other ends are fixed on dull and stereotyped 8 by rocking bar set collar 4 and rocking bar set-up piece 5, dull and stereotyped 8 edge is provided with sliding bar 6, position corresponding with sliding bar 6 on the body 3 is provided with slideway 7, sliding bar 6 is installed in the slideway 7, prevents dull and stereotyped 8 stressed irregular generations sideslips.Be fixed with the push-pull rod 16 that is connected with piston 20 more than two or two on dull and stereotyped 8, piston 20 (is seen Fig. 3 for the perforated piston that has piston hole 23, but its middle part is a connecting hole 24), push-pull rod 16 is fixedly installed on dull and stereotyped 8 by push-pull rod set collar 17 and push-pull rod set-up piece 18, can regulate push-pull rod 16 as required and be inserted in the degree of depth of simulator 9 so that piston 20 is in the correct position in settling 21 upper waters, and then the strength of turbulence of 20 pairs of water of change piston, for preventing external environmental interference, can cover dw 19 at the opening part of simulator 9.

This device operational process is as follows: motor 2 operations drive runner 12, runner 12 drives flat board 8 motions of being fixed in the rocking bar 15 on the runner 12 and being installed in rocking bar 15 lower ends again, dull and stereotyped 8 drive push-pull rod 16 again, and piston 20 is moved reciprocatingly, by the to-and-fro movement disturbance settling surface water of piston 20, make the settling resuspending.

The specific operation process of this device is as follows:

For ease of observing, simulator 9, piston 20, push-pull rod 16 are all made by synthetic glass, and simulator 9 is the column simulator, and the black part among Fig. 1 is divided into settling 21.

1, at first in column simulator 9, puts into a certain amount of settling 21, inject an amount of water body example then.

2, be fixed on the plant bottom case 11 with the simulator base 22 of standing bolt 10 column simulator 9 bottoms.

3, make piston 20 be in correct position in the settling upper water by regulating push-pull rod set collar 17.

4, as required fixedly on the rocking bar interface 13 of rocking bar 15 to the runner 12.

5, open motor, equipment brings into operation.

Claims

1. the device of settling resuspending in the Simulated Water, at least comprise body, be installed on the motor on the body and have the transmission rig of runner, it is characterized in that: an end of rocking bar is fixedly installed on the eccentric position of runner, the other end of rocking bar then is fixedly installed on the flat board, is fixed with the push-pull rod of dividing into piston on the flat board.

2. the device of settling resuspending in the Simulated Water according to claim 1 is characterized in that: dull and stereotyped edge is provided with sliding bar, and position corresponding with sliding bar on the body is provided with slideway, and sliding bar is installed in the slideway.

3. the device of settling resuspending in the Simulated Water according to claim 1 and 2 is characterized in that: two or two above push-pull rods are installed on the flat board, and each push-pull rod is uniformly distributed on the flat board.

4. the device of settling resuspending in the Simulated Water according to claim 1 and 2 is characterized in that: piston is a perforated piston.

5. the device of settling resuspending in the Simulated Water according to claim 1 and 2 is characterized in that: motor is a variable-frequency motor.