CN107524222A - With abandoned stream, cut dirty and automatic cleaning function rain inlet structure - Google Patents

Abstract

The invention relates to the technical field of urban road drainage facilities, and provides a rainwater outlet structure with the functions of discarding flow, intercepting sewage and automatic cleaning. On the water inlet of the well body, the top of the rectification cylinder is connected with the bottom surface of the rainwater grate, the bottom is connected with the filter cylinder, the side of the rectification cylinder is connected with the municipal drainage pipe, and the filter cylinder is provided with a plurality of filter holes. The invention can not only realize the abandonment of initial rainwater and prevent the initial rainwater from flowing into the receiving water body, but also screen out the impurities in the later rainwater to prevent them from being deposited in municipal drainage pipes and causing blockage. In addition, during the rainfall process, as the rainwater flows along the outer wall of the rectifying cylinder and the filter cylinder, the sediment attached to the outer wall of the filter cylinder will also be washed and peeled off by the rainwater, and finally deposited at the bottom of the shaft, so that it can also be realized. The automatic cleaning of the filter cartridge ensures the filtering effect and reduces the working intensity of the cleaning personnel.

Description

Rainwater outlet structure with the functions of waste flow, sewage interception and automatic cleaning

technical field

The invention relates to the technical field of urban road drainage facilities, in particular to a gully structure with the functions of discarding flow, intercepting sewage and automatically cleaning.

Background technique

With the rapid development of cities, a series of environmental problems such as urban waterlogging, black and smelly water bodies, and water ecological damage have become increasingly prominent. The construction of sponge city is an important measure to deal with the above environmental problems. The construction of a sponge city includes the construction of three major systems: the source runoff emission reduction system, the drainage pipe system, and the waterlogging and risk relief system. Among them, the gully is an important subsidiary structure of the drainage system. Whether it can effectively collect water and efficiently transport the surface rainwater runoff to the municipal drainage pipeline directly determines the drainage capacity of the drainage system. And the so-called "black odor is in the water, the root is on the shore, the key is in the outlet, and the core is in the pipe network", so intercepting sewage through storm water outlets is also one of the keys to controlling black and odor in water bodies.

The existing rainwater outlet is composed of a rainwater grate, a well body and a rainwater branch pipe. Surface rainwater runoff enters the well body through the rainwater grate, and then is discharged into the municipal drainage pipe through the drainage branch pipe. In the drainage process, the initial rainwater will be directly discharged into the municipal drainage pipe through the storm water outlet, and finally discharged to the receiving water body. The initial rainwater contains a large amount of air pollutants and surface pollutants washed away during the confluence process, so the direct discharge of initial rainwater will cause serious pollution to the receiving water body; at the same time, a large amount of surface garbage will pass through the bars on the rainwater grate The shaped hole flows into the well body with rainwater, and then blocks the drainage branch pipe, resulting in a decrease in the water passing capacity of the rainwater outlet.

Contents of the invention

The invention aims to solve the technical problems in the prior art that the initial rainwater cannot be separated, and the drainage branch pipes are easily blocked by surface garbage.

In order to solve the above problems, the present invention provides a rainwater outlet structure with the functions of discarding flow, intercepting sewage and automatic cleaning. On the water inlet of the well body, the top of the rectifying cylinder is connected to the bottom surface of the rainwater grate, the bottom is connected to the filter cartridge, the side of the rectifying cylinder is connected to the municipal drainage pipe, and the filter cartridge is provided with There are multiple filter holes.

Wherein, the fairing cylinder includes a fairing and a buffer pipe, the top of the fairing is connected to the rainwater grate, the bottom is communicated with the filter cartridge through the buffer pipe, and the lower part of the buffer pipe is connected to the municipal drainage Pipe connection.

Wherein, the top of the fairing bulges upwards.

Wherein, the material of the fairing and the buffer pipe is stainless steel, glass fiber reinforced plastic, polyvinyl chloride, aluminum alloy or titanium alloy.

Wherein, the filter cartridge includes a bottom plate and a metal mesh arranged along the periphery of the bottom plate.

Wherein, the rectifying cylinder is movably connected with the rainwater grate through a first connecting piece.

Wherein, the first connecting piece includes a hook connected to the bottom surface of the rainwater grate and a shackle connected to the top of the rectifier, and the hook is hooked into the shackle.

Wherein, a corrugated hose is also included, one end of the corrugated hose is connected with the rectifier, and the other end is inserted in the municipal drainage pipe.

Wherein, there is a flexible connection between the rectifying cylinder and the corrugated hose.

Wherein, the corrugated hose is made of polyvinyl chloride, polyethylene or polypropylene.

The invention has simple structure and low cost. By suspending the rectifier cylinder and the filter cylinder in the well body, not only can the initial rainwater abandonment flow be realized, and the initial rainwater can be prevented from flowing into the receiving water body; impurities in the later rainwater can also be screened out. , to avoid its deposition in municipal drains causing clogging. In addition, during the rainfall process, as the rainwater flows along the outer wall of the rectifier and filter cartridge, the sediment attached to the outer wall of the filter cartridge will also be washed and peeled off by the rainwater, and finally deposited at the bottom of the well, thus realizing the filtration. The automatic cleaning of the cylinder ensures the filtering effect and reduces the working intensity of the cleaning personnel.

Description of drawings

Fig. 1 is a top view of a gully structure with the functions of abandonment, sewage interception and automatic cleaning according to an embodiment of the present invention;

Fig. 2 is a sectional view along the A-A direction of Fig. 1;

Fig. 3 is a sectional view along the B-B direction of Fig. 1;

Fig. 4 is a working principle diagram of a gully structure with the functions of discarding flow, intercepting sewage and automatically cleaning according to an embodiment of the present invention.

Reference signs:

1. Well body; 2. Rainwater grate; 3. Fairing tube; 3-1. Fairing cover;

3-2. Buffer pipe; 4. Filter cartridge; 5. Municipal drainage pipe; 6. Corrugated hose;

7-1, hook; 7-2, shackle.

detailed description

In order to make the purpose, technical solutions and advantages of the invention clearer, the technical solutions in the invention will be clearly described below in conjunction with the accompanying drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of them. Example. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.

In the description of the present invention, unless otherwise specified, the orientation or positional relationship indicated by the terms "upper", "lower" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention.

It should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or through Intermediaries are indirectly connected. Those of ordinary skill in the art can understand the specific meanings of the above terms in the invention in specific situations.

As shown in Figure 1 and Figure 2, the present invention provides a rainwater outlet structure with the functions of abandoning flow, intercepting sewage and automatic cleaning. The rainwater grate 2 is covered on the water inlet of the shaft 1, the top of the rectifier 3 is connected to the bottom of the rainwater grate 2, the bottom is connected to the filter cartridge 4, the side of the rectifier 3 is connected to the municipal drainage pipe 5, and the filter cartridge 4 There are many filter holes on it.

As shown in Figure 4, when it rains, part of the rainwater flows into the well body 1 through the edge of the rainwater grate 2, and then flows directly to the bottom of the well body 1 along the inner wall of the well body 1; After the hole directly falls to the top of the straightening cylinder 3, it flows along the outer walls of the straightening cylinder 3 and the filter cylinder 4 until it falls to the bottom of the shaft 1. Since there is a certain distance between the municipal drainage pipe 5 and the bottom of the well body 1, the initial rainwater will accumulate in the lower part of the well body 1 after flowing into the well body 1, and will not flow into the receiving water body through the municipal drainage pipe 5. As the rainfall continues, later rainwater will gradually flow into the well body 1 . Due to the existence of flow resistance, after the late rainwater flows into the well body 1, the disturbance to the initial rainwater is very small, so the initial rainwater still accumulates in the lower part of the well body 1, while the later rainwater gradually accumulates in the well body 1 on the basis of the initial rainwater. That is to say, at this time, the rainwater in the shaft 1 is divided into an initial rainwater layer and a late rainwater layer from bottom to top. When the late rainwater gradually rises to the filter cartridge 4, the impurities mixed in the late rainwater, such as garbage and suspended particles, will be intercepted outside the filter cartridge 4, and the later rainwater after the removal of impurities will enter the filter cartridge 4 through the filter holes. Along with the continuous increase of late stage rainwater, the late stage rainwater after impurity removal in the filter cartridge 4 will gradually diffuse into the rectifying cylinder 3, and be discharged in the municipal drainage pipe 5 by the rectifying cylinder 3. When the rainfall is over, the impurities filtered out from the initial rainwater and later rainwater will gradually settle at the bottom of the well body 1, and the initial rainwater after the impurity removal can gradually evaporate, so that the cleaning personnel only need to regularly clean up the garbage at the bottom of the well body 1 and silt.

As a result, the gully can not only realize the early rainwater abandonment, avoiding the initial rainwater flowing into the receiving water body and causing environmental pollution; but also can screen out the impurities in the later rainwater through the filter cartridge 4 to prevent them from accumulating in the municipal drainage pipes cause blockage. In addition, during the rainfall process, as the rainwater flows along the outer walls of the rectifying cylinder 3 and the filter cylinder 4, the sediment attached to the outer wall of the filter cylinder 4 will also be washed and peeled off by the rainwater, and finally deposited at the bottom of the shaft 1, thereby also The automatic cleaning of the filter cartridge 4 is realized, the filtering effect is ensured, and the work intensity of the cleaning staff is reduced.

Further, as shown in Fig. 3, the fairing cylinder 3 includes a fairing 3-1 and a buffer pipe 3-2, the top of the fairing 3-1 is connected to the rainwater grate 2, and the bottom communicates with the filter cartridge 4 through the buffer pipe 3-2 , the lower part of the buffer pipe 3-2 communicates with the municipal drainage pipe 5.

More preferably, the top of the fairing 3-1 is raised upwards. For example, the top of the fairing 3-1 is conical, pyramidal or hemispherical. The advantage of setting like this is: on the one hand, can avoid rainwater or rubbish from depositing on the top of fairing 3-1; Flow to the outer wall of the buffer pipe 3-2.

Further, the fairing 3-1 and the buffer pipe 3-2 are made of stainless steel, glass fiber reinforced plastic, polyvinyl chloride, aluminum alloy or titanium alloy.

Preferably, the filter cartridge 4 includes a bottom plate and a metal mesh arranged along the periphery of the bottom plate. It should be noted that the mesh of the metal mesh, that is, the aperture of the filter hole, can be set according to the concentration and size of the suspended particles in the rainwater. For example, the diameter of the filter hole may be 0.075 mm to 8 mm.

Wherein, the rectifying cylinder 3 is flexibly connected with the rainwater grate 2 through the first connecting piece. Because the rainwater has a certain speed when it falls through the strip holes on the rainwater grate 2, when the rainwater falls on the top of the rectifying cylinder 3, it will cause a small swing of the rectifying cylinder 3, such as a 3 ° offset, and then adhere to the The sediment on the outer wall of the filter cartridge 4 will fall with the swing of the rectifier cartridge 3, thereby avoiding the filter holes from being blocked and further enhancing the filtering effect of the filter cartridge 4.

Specifically, in order to facilitate subsequent maintenance and updating, the first connector includes a hook 7-1 connected to the bottom surface of the rainwater grate 2 and a shackle 7-2 connected to the top of the rectifier 3, and the hook 7-1 is hooked to the shackle. 7-2 inside. Therefore, it is only necessary to hang the shackle 7-2 on the hook 7-1 during installation, which greatly reduces the work intensity of the cleaning personnel.

Preferably, a corrugated hose 6 is also included. One end of the corrugated hose 6 communicates with the rectifier 3 , and the other end is inserted in the municipal drainage pipe 5 , so that the corrugated hose 6 can swing together with the rectifier 3 .

Further, the rectifying cylinder 3 and the corrugated hose 6 are flexibly connected to reduce contact stress.

Wherein, the corrugated hose 6 is made of polyvinyl chloride, polyethylene or polypropylene. The diameter of the corrugated hose 6 is preferably 110 mm to 300 mm.

Preferably, the well body 1 includes a well body and a well bottom, wherein the well body is made of bricks, and the well bottom is made of concrete.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the invention, rather than limiting it; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it still can The technical solutions described in the foregoing embodiments are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the invention.

Claims (10)

1. A rainwater outlet structure with functions of abandonment, sewage interception and automatic cleaning is characterized in that it comprises a well body, a rainwater grate, a rectifier and a filter cartridge, and the rainwater grate cover is located at the water inlet of the well body Above, the top of the rectifying cylinder is connected to the bottom surface of the rainwater grate, the bottom is connected to the filter cartridge, the side of the rectifying cylinder is connected to the municipal drainage pipe, and the filter cartridge is provided with a plurality of filter holes. 2. The gully structure with the functions of discarding flow, intercepting sewage and automatic cleaning according to claim 1, wherein the fairing cylinder comprises a fairing and a buffer pipe, and the top of the fairing is connected to the rainwater grate. The connection and the bottom communicate with the filter cartridge through the buffer pipe, and the lower part of the buffer pipe communicates with the municipal drainage pipe. 3. The gully structure with the functions of discarding flow, intercepting sewage and automatically cleaning according to claim 2, characterized in that the top of the fairing bulges upwards. 4. The gully structure with the functions of abandoning flow, intercepting sewage and automatic cleaning according to claim 2, wherein the material of the fairing and the buffer pipe is stainless steel, glass steel, polyvinyl chloride, aluminum alloy or titanium alloy. 5 . The gully structure with the functions of discarding flow, intercepting sewage and automatic cleaning according to claim 2 , wherein the filter cartridge comprises a bottom plate and a metal mesh arranged along the periphery of the bottom plate. 6 . 6. The gully structure with the functions of discarding flow, intercepting sewage and automatic cleaning according to any one of claims 1 to 5, characterized in that the rectifying cylinder is movably connected with the rainwater grate through a first connecting piece. 7. The gully structure with the functions of jettisoning, sewage interception and automatic cleaning according to claim 6, characterized in that, the first connecting piece includes a hook connected to the bottom surface of the rainwater grate and connected to the rectifying The top of the cylinder is connected with a shackle, and the hook is hooked into the shackle. 8. The gully structure with the functions of discarding flow, intercepting sewage and automatic cleaning according to claim 6, further comprising a corrugated hose, one end of the corrugated hose is connected to the rectifier, and the other end is Inserted in the municipal drainage pipe. 9. The gully structure with the functions of discarding flow, intercepting sewage and automatically cleaning according to claim 8, characterized in that, the rectifying cylinder and the corrugated hose are flexibly connected. 10. The gully structure with the functions of discarding flow, intercepting sewage and automatically cleaning according to claim 8, characterized in that, the material of the corrugated hose is polyvinyl chloride, polyethylene or polypropylene.