CN203929454U - Turbulent flow water body settling particulate matter grabber - Google Patents

Abstract

The utility model discloses a catcher for turbulent water sedimentation particles, which comprises a catcher, a catcher bracket for fixing the catcher and a stabilizing device, the catcher includes a large sleeve, a small sleeve and a mesh screen. The small sleeve is arranged on the top of the large sleeve, and the mesh screen is arranged in the small sleeve; the catcher bracket includes a draw-in slot frame and shelf plates arranged at intervals on the draw-in slot frame, and the shelf plates are correspondingly arranged There is a hole for snapping the catcher; the stabilizing device includes a float I, a weight I, a rope I, a float II, a weight II, a rope II and a rope III, and the float I and the weight I pass through The rope I is set above and below the catcher bracket, the floating ball II and the weight II are respectively set at the two ends of the rope II, and the two ends of the rope III are respectively connected to the floating ball I and the floating ball II; the device can It has good operability, small size, strong corrosion resistance, light weight, easy to carry, simple structure, low cost, and is convenient for multi-point and multi-period measurement in the field.

Description

Turbulent water sedimentation particulate matter trap

technical field

The utility model belongs to the field of water body sediment collection devices, and relates to a turbulent water body sediment particle catcher.

Background technique

The particulate matter in the water body mainly comes from the particulate matter produced by the water body itself (plankton and its excrement and debris), the deposition of atmospheric particulate matter, the input of terrestrial particulate matter, and the resuspension of sediments. Because it records a lot of biological activities and physical and chemical information in the process of form, change and deposition, it has become a good material for the study of geobiochemical effects in various disciplines, and has gradually become the mainstream of particulate matter research worldwide.

A high-quality water particle trap should have the ability to ensure that water sediments are effectively collected without loss, good portability, and stability suitable for use under complex and changeable field environmental conditions. The existing water body sediment capture devices can be divided into two categories: one is the sediment capture device adapted to shallow lakes, and the other is the marine time series sediment capture device.

The sediment capture devices suitable for shallow lakes mainly have the following problems: First, due to the still water environment as the design background, a simple cylindrical device is usually used, while in rivers, large lakes and other water bodies, due to the large flow velocity of the water body, Cause the disturbance of the water body in the catcher container, resuspend the settled particles in the container and leave the device, causing the sedimentation to be lost; second, in the prior art, the catcher system is directly connected with the weight to stabilize the catcher The purpose of the device is that it is difficult to recover the catcher container due to the heavy weight. At the same time, if there are multiple depth catchers connected to the suspension cable of a heavy weight, it will also cause "recover one container, the rest The problem of container swaying” caused the sediment in the remaining underwater traps to escape; thirdly, the bracket system used to place the traps was designed with an iron frame. When the water flow rate is large, the collection port of the trap container is prone to tilt question.

Although the marine time-series sediment capture device does not have the above disadvantages, because the device contains sophisticated electronic equipment as a whole, the structure is complex, it is not easy to carry, and the installation process of the device requires more manpower, so it is not suitable for multi-point and multi-period measurement work in the field. conduct.

Contents of the invention

In view of this, the purpose of the utility model is to provide a turbulent water body sedimentation particle capture device with simple structure, convenient installation, good stability, and can significantly reduce the loss of sedimentation flow caused by sloshing or water body disturbance.

In order to achieve the above purpose, the utility model provides the following technical solutions: a trap for turbulent water sedimentation particles, including a trap, a trap bracket for fixing the trap and a stabilizing device, the trap includes a large sleeve, a small Sleeve and screen, the small sleeve is arranged above the large sleeve, and the mesh screen is arranged in the small sleeve; the catcher bracket includes a slot frame and a shelf plate arranged on the slot frame at intervals , the shelf plate is correspondingly provided with a hole for snapping the catcher; the stabilizing device includes a float I, a weight I, a rope I, a float II, a weight II, a rope II and a rope III, the The floating ball I and the weight I are set above and below the catcher bracket through the rope I, the floating ball II and the heavy weight II are respectively set at the two ends of the rope II, and the two ends of the rope III are respectively connected to the floating ball I and the On Float II.

Further, the large sleeve and the small sleeve are coaxially arranged circular sleeves, and a circular platform connection section is provided between the large and small sleeves.

Further, a hanging ring is provided on the frame of the slot, and a pulling rope for hanging the catcher bracket is arranged on the hanging ring; the other end of the pulling rope is fixed on the rope I.

Further, the frame plate is provided with a threading hole for threading the rope I, and the frame plate is fastened to the rope I by bolts.

Further, the trap height H/small sleeve diameter R1>10.

The beneficial effects of the utility model are: the structure of the catcher can prevent larger organisms (such as fry, shrimp, etc.) and the design of the shrinkage connection part can prevent the loss of sediment flow caused by the resuspension of the sediment; the overall structure is stable and not easily affected by the fluctuation of the water flow velocity; the catcher and the catcher bracket are suspended at the specified depth through the floating ball, and It is not directly connected to the weight to suspend at the specified depth, which reduces the quality of the pulled part when recovering the catcher system, and reduces the difficulty of recovery; the monitoring of different water depths relies on suspended independent floating balls, and the device has good operability ;Small size, strong corrosion resistance, light weight, easy to carry, simple structure, easy installation, convenient for field multi-point and multi-time measurement; low cost, easy to process.

Description of drawings

In order to make the purpose, technical solutions and beneficial effects of the utility model clearer, the utility model provides the following drawings for illustration:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of catcher;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is the structural representation of catcher bracket;

Figure 5 is a schematic diagram of particle movement.

Detailed ways

The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in the figure, the turbulent water sedimentation particle trap described in this embodiment includes a trap 1, a trap bracket 2 for fixing the trap 1, and a stabilizing device. The trap 1 includes a large sleeve 11, Small sleeve 12 and mesh screen 13, described small sleeve 12 is arranged on the top of large sleeve 11, and described mesh screen 13 is arranged in small sleeve 12 and is equal to small sleeve 12, namely small sleeve 12 The inside is completely filled with the mesh screen 13; the catcher bracket 2 includes a slot frame 21 and a frame plate 22 arranged at intervals on the frame frame 21 of the clip slot, and the frame plate 22 is correspondingly provided with a cylinder hole for snapping the catcher 1 The stabilizing device includes a floating ball I3, a heavy weight I4, a rope I5, a floating ball II6, a heavy weight II7, a rope II8 and a rope III9, and the floating ball I3 and the heavy weight I4 are arranged above the catcher bracket 2 through the rope I5 and below, the floating ball II6 and the weight II7 are respectively arranged at the two ends of the rope II8, and the two ends of the rope III9 are respectively connected to the floating ball I3 and the floating ball II6. The screen 13 can prevent organisms such as small fish and shrimp from entering the trap 1 and disturb the settlement, and reduce the resuspension and escape of the settled particles; setting two sets of floating balls and weights significantly enhances the overall stability of the trap and ensures It will not be deflected by water currents.

Further, the large sleeve 11 and the small sleeve 12 are circular sleeves coaxially arranged, and a circular platform connection section 14 is arranged between the large and small sleeves, wherein the diameter R1 of the small sleeve 12 is set to 5-20cm, and the length At least 15cm, the diameter R2 of the large sleeve 11 is at least 3cm more than the diameter R1 of the small sleeve 12, the length of the connecting section 14 is 8-13cm, the ratio of the height H of the catcher 1 to the diameter R1 of the small sleeve 12 is greater than 10; In the trap 1 of this structure, the water flow disturbance caused by the high flow rate gradually decreases from top to bottom, and a section of still water zone is formed at the lower end of the large sleeve 11, which can ensure that the sediment at the bottom of the large sleeve 11 will not be resuspended, such as As shown in Figure 5, the specific size can be selected according to the actual situation.

As a further improvement of the above scheme, a hanging ring 24 is also provided on the draw-in slot frame 21, and a pulling rope 25 for hanging the catcher bracket 2 is arranged on the hanging ring 24; the other end of the pulling rope 25 is fixed on the rope I5 At the same time, the frame plate 22 is provided with a rope threading hole 23 for threading the rope I5, and the frame plate 22 and the rope I5 are fastened together by the bolt 10, which can effectively ensure the stability of the catcher 1.

There are three catchers 1 in this embodiment. The catcher bracket 2 is an equilateral triangle skeleton. Each catcher 1 is correspondingly arranged on each corner of the frame plate 22. The rope I5 passes through the center of the frame plate 22 and is fixed. The upper and lower ends of I5 are respectively connected to the floating ball I3 and the weight I4. The buoyancy of the floating ball I3 is greater than the sum of the gravity of the catcher 1 and the catcher bracket 2. Under the action of the floating ball I3 and the heavy weight I4, the catcher system Suspended at the specified depth and kept vertical; the gravity of the weight II7 is greater than the buoyancy of the floating ball II6, keeping the entire system at the specified position and will not be shifted by the action of the water flow; the catcher 1 is placed in the monitored water body by adjusting the length of the rope I5 depth. The weight here is a solid object made of cement material or other corrosion-resistant materials, and the catcher bracket 2 and frame plate 22 are made of PVC.

When using the device, first connect the catcher support 2 to the rope I5, and the length of the pull rope 25 is adjusted according to the depth to which the catcher 1 is to be suspended; The rope hole 23 of each layer is fastened with bolts 10, and the lower end of the rope I5 is connected to the weight I4; one end of the rope II8 is connected to the float II6, and the other end is connected to the weight II7, and the weight II7 is thrown to the designated area. Then the floating ball I3 and the floating ball II6 are connected through the rope III9, and finally the floating ball I3 and the catcher system are gently placed in the water body.

Finally, it is noted that the above preferred embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that it can be described in the form Various changes can be made in the above and in the details without departing from the scope defined by the claims of the present invention.

Claims (5)

1. A trap for turbulent water body sedimentation particles, comprising a trap, a trap bracket and a stabilizing device for fixing the trap, characterized in that: the trap includes a large sleeve, a small sleeve and a mesh screen, the The small sleeve is arranged above the large sleeve, and the mesh screen is arranged in the small sleeve; the catcher bracket includes a draw-in slot frame and frame plates arranged at intervals on the clip-in slot frame, and the frame plate corresponds to There is a hole for snapping the catcher; the stabilizing device includes a float I, a weight I, a rope I, a float II, a weight II, a rope II and a rope III, and the float I and the weight I The rope I is arranged above and below the catcher bracket, the floating ball II and the weight II are respectively arranged at two ends of the rope II, and the two ends of the rope III are respectively connected to the floating ball I and the floating ball II. 2. The turbulent water sedimentation particle trap according to claim 1, characterized in that: the large sleeve and the small sleeve are circular sleeves coaxially arranged, and a circular platform connection is provided between the large and small sleeves part. 3. The trap for turbulent water body sedimentation particles according to claim 1, characterized in that: the frame of the card slot is also provided with a hanging ring, and the hanging ring is provided with a pull rope for hanging the catcher bracket ; The other end of the pulling rope is fixed on the rope I. 4. The turbulent water sedimentation particle trap according to claim 3, characterized in that: the frame plate is provided with a rope threading hole for threading the rope I, and the frame plate is fastened to the rope I by bolts. 5 . The trap for turbulent water sedimentation particles according to claim 2 , characterized in that: height H of the trap/diameter R1 of the small sleeve>10.