CN105442697B - Floater catching apparatus - Google Patents

Abstract

The invention discloses a floating matter intercepting device, which includes a well body and water inlet pipes and outlet pipes at the front and rear ends of the well body, and is characterized in that it also includes a foundation wall extending upward from the bottom of the well body and one or more openings facing forward. A filter bag, the filter bag is located above the foundation wall, the foundation wall is provided with a movable connection structure that can move the filter bag upwards, and a permeable support structure is provided below the filter bag, and the foundation The wall surface is lower than or flush with the lower surface of the water inlet pipe. The present invention is simple in structure, easy to use, handles the floating matter and particulate matter of rainwater through the combination of gravity sedimentation and floating matter interception, and is suitable for pretreatment before rainwater enters urban main pipes or before rainwater pipes discharge natural water bodies .

Description

Floating Object Interception Device

technical field

The invention relates to the technical field of rainwater pretreatment, in particular to a floating object intercepting device.

Background technique

With the rapid development of urbanization, non-point source pollution caused by rainwater runoff has gradually become an important source of urban water pollutants. Pollutants in urban stormwater runoff mainly come from wet deposition caused by precipitation leaching atmospheric pollutants and leaching of urban impervious surface pollutants, and the latter accounts for more than 90% of the total amount of pollutants in stormwater runoff. Particulate matter is the main carrier of urban impermeable surface pollutants, such as: atmospheric deposition, vehicle exhaust, tire wear, snow melting agent, sediment on construction sites, solid waste and leachate and other particulate matter contain a large number of pollutants (COD, nutrients , organic matter, heavy metals, pathogens, etc.), will eventually migrate to the receiving water body under the action of rainwater washing and scouring, and cause serious harm to its ecological environment.

Particulate matter in stormwater runoff can also lead to increased turbidity in receiving water bodies, and it is generally considered that particulate matter is a potential component of water quality deterioration in environmental water bodies. In addition, particulate matter enters the urban drainage pipeline system under the action of rainwater runoff and will deposit in the pipeline, forming pipeline sediment pollution and waterlogging disasters.

Therefore, when the rain falls to the ground and forms runoff, it will contain a large amount of particles such as sediment and floating objects. If the particles and floating objects in the rainwater are not intercepted and discharged directly to the natural water body, the natural water body will be polluted. Most of the rainwater is treated by filter screen, and the rainwater is pre-treated by simple filtration, but this filter filter method will bring many problems: 1. The filter screen may be blocked, hindering the discharge of rainwater and causing urban waterlogging . 2. Floating objects are not collected after they are intercepted, so cleaning is very inconvenient.

Contents of the invention

The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology, and provide a device for intercepting floating objects in rainwater, which can collect the intercepted floating objects, and can ensure rainwater discharge under large flow of rainwater to avoid waterlogging.

The technical solution of the present invention is: a floating object intercepting device, including a well body and water inlet pipes and outlet pipes at the front and rear ends of the well body, and is characterized in that it also includes a foundation wall extending upward from the bottom of the well body and a front opening. or a plurality of filter bags, the filter bags are located above the foundation wall, the foundation wall is provided with a flexible connection structure that allows the filter bags to move upwards, and a permeable support structure is provided below the filter bags, The surface of the foundation wall is lower than or flush with the lower surface of the water inlet pipe.

Preferably, the movable connection structure includes a rectangular basic frame corresponding to each filter bag, the opening of the filter bag is correspondingly connected to the basic frame, and the top of the basic wall is provided with A pair of vertical U-shaped guide grooves are provided, and the two sides of the base frame are slidably connected with the corresponding guide grooves.

Further, the base frame is provided with an annular groove, the opening of the filter bag is provided with a raised annular edge, and the annular edge is located in the annular groove, and a long pressing plate is arranged at the notch of the annular groove , the bolts fix the strip pressure plate on the foundation frame.

Further, a suspension ring is provided at the upper end of the base frame.

Preferably, the support structure includes a support wall located behind the foundation wall, a mesh plate is arranged above the foundation wall and the support wall, and the filter bag is supported on the mesh plate.

Further, the support wall is arranged laterally along the well body and is connected to both lateral sides of the well body; the middle part of the upper end of the support wall is concave to form a lateral overflow port.

Preferably, a scum retaining wall is provided in front of the foundation wall, the scum retaining wall is formed by extending downward from the top of the well body, and the height of the lower end of the scum retaining wall is located between the upper and lower surfaces of the filter bag.

Further, the scum retaining wall is arranged laterally along the well body and connected to both lateral sides of the well body.

Preferably, the foundation wall is arranged laterally along the well body and connected to both sides of the well body laterally.

Further, when there are multiple filter mesh bags, partition walls are arranged laterally at intervals on the foundation wall, and each filter mesh bag is correspondingly located between adjacent partition walls or between a partition wall adjacent to the side of the well body and the well body.

Preferably, a plurality of openable manhole covers are provided on the top of the well body, and there are three manhole covers respectively arranged in front of the scum retaining wall, directly above the opening of the filter bag and behind the filter bag.

The beneficial effects of the present invention are:

1. The filter bag is used to intercept and collect floating objects. There are one or more filter bags. The independent movable connection structure of each filter bag makes the use of the filter bag more effective and the replacement is also very convenient.

2. The combination of scum retaining wall and filter bag is used to remove floating objects, which can effectively intercept floating objects even in large flow rates, and at the same time ensure the safety of rainfall and flood discharge.

3. The structure is simple and easy to use. The floating and particulate matter of rainwater is treated through the combination of gravity sedimentation and floating interception. It is suitable for pretreatment before rainwater enters the urban main pipe or before the rainwater pipeline discharges natural water bodies. .

Description of drawings

Fig. 1 is a structural representation of the present invention (vertical direction)

Figure 2 is a sectional view of A-A in Figure 1

Figure 3 is an enlarged view of B in Figure 1

Figure 4 is an enlarged view of C in Figure 2

Among them: 1. Well body 2. Inlet pipe 3. Outlet pipe 4. Scum retaining wall 5. Foundation wall 6. Filter bag 7. Flexible connection structure 8. Support structure 9. Foundation frame 10. Guide groove 11. Annular concave Groove 12. Ring edge 13. Pressure plate 14. Bolt 15. Hanging ring 16. Support wall 17. Mesh plate 18. Overflow port 19. Partition wall 20. Well cover 21. Expansion screw.

detailed description

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

As shown in Figures 1-4, the floating object interception device of the present invention includes a well body 1 and water inlet pipes 2 and outlet pipes 3 respectively located at the front and rear ends of the well body. Usually, the height of the water outlet pipe 3 is lower than or flush with the water inlet pipe 2 Height, in this implementation, the height of the outlet pipe 3 is equal to the height of the water inlet pipe 2; it also includes the foundation wall 5 and one or more filter bags 6 (two in this embodiment) with the opening facing forward, and the filter bags 6 are located on the foundation. Above the wall 5, the foundation wall 5 is provided with an active connection structure 7 that can move the filter bag 6 upwards, and a permeable support structure 8 is provided below the filter bag 6; the upper surface of the foundation wall 5 is lower than or flush with the inlet The lower surface of the water pipe 2 (the upper surface of the foundation wall 5 in this embodiment is flush with the lower surface of the water inlet pipe 2), the front and rear ends in the present invention are the left and right ends in Fig. 2, and the lateral sides are the upper and lower sides in Fig. 2.

A scum retaining wall 4 is provided in front of the foundation wall 5, and the scum retaining wall 4 is formed by extending downward from the top of the well body. The lower end of the retaining wall 4 is slightly lower than the upper surface of the water inlet pipe 2 , and the scum retaining wall 4 is arranged laterally along the well body 1 and connected to both lateral sides of the well body 1 .

The foundation wall 5 is arranged laterally along the well body 1 and is connected to both lateral sides of the well body 1 . When there are multiple water filter bags 6 , the water filter bags 6 are arranged on the foundation wall 5 at intervals along the lateral direction of the well body 1 . The movable connection structure 7 of the water filter bag 6 includes each rectangular basic frame 9 corresponding to each filter bag 6, the basic frame 9 is provided with an annular groove 11, and the opening of the filter bag 6 is provided with a raised annular edge 12, and the annular The edge 12 is located in the annular groove 11, and the slot of the annular groove 11 is provided with a strip pressing plate 13, and the bolt 14 fixes the strip pressing plate 13 on the base frame 9, and the annular edge 12 of the filter bag 6 passes through the bolt 14 and the strip The pressing plate 13 is correspondingly connected to the base frame 9 , and the upper end of the base frame 9 is provided with a suspension ring 15 . The upper end of the foundation wall 5 is provided with a pair of vertical U-shaped guide grooves 10 corresponding to the two sides of each foundation frame 9 and opposite to the opening, and the two sides of the foundation frame 9 are slidably connected with the corresponding guide grooves 10 .

When there is one filter bag 6, the corresponding pair of U-shaped guide grooves 10 are directly fixed on the lateral side walls of the well body 1 at the upper end of the foundation wall 5; Partition walls 19 are arranged at intervals, and each filter bag 6 is correspondingly located between the adjacent partition walls 19 or between the partition wall 19 and the well body 1 adjacent to the side of the well body. In this embodiment, there are two filter bags 6, a partition wall 19 is arranged in the middle of the foundation wall 5, and the paired guide grooves 10 of a filter bag 6 are located on the upper side wall of the well body 1 and the upper side wall of the partition wall 19. , the pair of guide grooves 10 of another filter bag 6 are located on the lower side wall of the well body 1 and the lower side wall of the partition wall 19 . The height of partition wall 19 is to be identical with guide groove 10 height, or guide groove 10 can be fixed vertically, and guide groove 10 is all fixed on well body 1 side wall and partition wall 19 side walls by expansion screw 21.

The support structure 8 includes a support wall 16 positioned at the rear of the foundation wall 5. The support wall 16 is arranged laterally along the well body 1 and is connected to both lateral sides of the well body 1. A mesh plate 17 is arranged above the foundation wall 5 and the support wall 16. The mesh plate 17 It is a filter screen made of steel. The upper ends of the foundation wall 5 and the support wall 16 are respectively provided with stepped surfaces matching the shape of the front and rear ends of the screen 17 . The filter bag 6 is supported on the screen 17 . The middle part of the upper end of the support wall 16 is concave to form a horizontal overflow port 18. The height of the upper end of the support wall 16 is the same as the height of the upper end of the foundation wall 5, which is lower than or flush with the lower surface of the water inlet pipe 2, so that the lower surface of the overflow port 18 is lower than the water inlet pipe. 2 lower surface.

The top of the well body 1 is provided with a plurality of openable well covers 20 . There are three manhole covers 20 in this embodiment, which are respectively arranged in front of the scum retaining wall 4 , just above the mouth of the filter bag 6 and behind the filter bag 6 . The well cover directly above the filter bag 6 pockets needs to be set to the same width as the well body 1 in the horizontal direction, so that the base frame 9 can move up and down to replace the filter bag 6, and the rest are set to the size of the human hole for the workers to go down the well body to clean up the mud accumulation in the well body. Can.

The working principle of the floating object interception device is as follows:

In the early stage of rainfall, the amount of rainfall is small, and the rainwater enters the rainwater pipe through the ground runoff, and then enters the inside of the well body 1 through the water inlet pipe 2 of the device. Collected in the filter bag 6, because the rainwater has a certain flow rate when it passes by, under the action of the water flow, the floating matter first stays at the bottom of the filter bag 6, and then slowly accumulates and expands until it fills the entire filter bag 6 , coarse particles gather at the bottom of the well body 1 under the action of gravity settling. When the screen bag 6 filters, the water level in the space formed by the bottom foundation wall 5, the support wall 16 and the well body 1 both sides rises, and the water flow can be discharged from the overflow port 18. When it is sunny, the floating matter in the filter bag 6 will ferment if it is placed for a long time in a humid environment. The floating matter collected is separated from the accumulated water below, keeping the drying of the floating matter in the filter mesh bag 6, and avoiding its fermentation to produce peculiar smell.

When the rainfall intensity became large, the water level in the well body 1 would rise due to the limited discharge of the outlet pipe 3. The bottom of the scum retaining wall 4 overflows, and the floating matter is blocked in front of the scum retaining wall 4 . When the rainfall dwindles, the liquid level will gradually drop, and the floating matter intercepted by the scum retaining wall 4 then re-enters the filter bag 6 along with the current. If the screen bag 6 is filled with floating objects and cannot pass through, rainwater can also overflow from the bottom of the scum retaining wall 4 to ensure the safety of the rainwater discharge channel, and floating objects are also intercepted when overflowing.

This device requires regular maintenance. When maintenance is required, the well cover 20 can be opened, hook the suspension ring 15 on the foundation frame 9 above the well body 1, remove the filter bag 6 after pulling it up, and replace it with a new filter bag 6. Return the basic frame 9 to its original position. Generally, the filter bag 6 needs to be updated once every six months.

Every year, the mud deposit at the bottom of the well body 1 needs to be cleaned and maintained. During maintenance, the well cover 20 is opened earlier, the filter bag 6 is taken out, and the screen plate 17 is opened, so that the mud deposit at the bottom of the well can be cleaned.

Claims (8)

1. A floating matter intercepting device, comprising a well body (1) and a water inlet pipe (2) and an outlet pipe (3) at the front and rear ends of the well body, is characterized in that it also includes a foundation wall (5) extending upward from the bottom of the well body ) and one or more filter bags (6) with openings facing forward, the filter bags (6) are located above the foundation wall (5), and the foundation wall (5) is provided with a filter bag (6) ) movable connection structure (7) moving upwards, a permeable support structure (8) is provided below the filter bag (6), and the upper surface of the foundation wall (5) is lower than or flush with the water inlet pipe (2 )lower surface; The movable connection structure (7) includes a rectangular basic frame (9) corresponding to each filter bag (6), and the opening of the filter bag (6) is correspondingly connected to the basic frame (9), and the basic wall ( 5) The upper end is provided with a pair of vertical U-shaped guide grooves (10) corresponding to the two sides of each base frame (9) and opposite to the opening. The gap between the two sides of the base frame (9) and the corresponding guide grooves (10) sliding connection; The basic frame (9) is provided with an annular groove (11), and the opening of the filter bag (6) is provided with a raised annular edge (12), and the annular edge (12) is located in the annular groove (11). ), a long pressing plate (13) is arranged at the notch of the annular groove (11), and the bolt (14) fixes the long pressing plate (13) on the base frame (9). 2. The floating object interception device according to claim 1, characterized in that, the upper end of the base frame (9) is provided with a lifting ring (15). 3. The floating object interception device according to claim 1, characterized in that, the support structure (8) comprises a support wall (16) positioned behind the foundation wall (5), the foundation wall (5), the support wall A net plate (17) is arranged above (16), and the filter bag (6) is supported on the net plate (17). 4. The floating object interception device according to claim 3, characterized in that, the support wall (16) is arranged laterally along the well body (1) and is connected with both lateral sides of the well body (1), and the support wall ( 16) The middle part of the upper end is recessed to form a transverse overflow port (18). 5. The floating object interception device according to claim 1, characterized in that, a scum retaining wall (4) is provided in front of the foundation wall (5), and the scum retaining wall (4) is formed from the top of the well body. Extending downwards, the height of the lower end of the scum retaining wall (4) is located between the upper and lower surfaces of the filter bag (6). 6. The floating object interception device according to claim 5, characterized in that, the scum retaining wall (4) is arranged laterally along the well body (1) and connected to both lateral sides of the well body (1). 7. The floating object interception device according to claim 1, characterized in that, the foundation wall (5) is arranged laterally along the well body (1) and is connected to both lateral sides of the well body (1). 8. The floating object interception device according to claim 7, wherein when there are multiple filter bags (6), the foundation wall (5) is horizontally spaced with partition walls (19), and each The filter bag (6) is correspondingly located between adjacent partition walls (19) or between the partition wall (19) and the well body (1) adjacent to the side of the well body.