CN104196117B - Rain and sewage converging and intercepting device - Google Patents

Abstract

The invention relates to a rain and sewage confluence interception device, which includes a well body, a separation plate, an overflow weir, a louver valve and a float. , an overflow pipe and a shut-off pipe; the inside of the well body is separated into a water inlet chamber, a drain chamber and an overflow chamber by the overflow weir, a louver valve and a separation plate; the confluence pipe communicates with the water inlet chamber , the overflow pipe communicates with the overflow chamber, and the shut-off pipe communicates with the drainage chamber; the floats are arranged on both sides of the overflow weir to control the opening of the louver valve . The rain and sewage confluence and interception device provided by the present invention, the well body is integrally injection-molded with polymer materials, which solves the leakage problem of the traditional "brick well" and prevents secondary pollution. The water inlet chamber, drainage chamber and overflow chamber The reasonable setting of the three chambers enables the device to realize the confluence and interception of rain and sewage, and at the same time solve the problem of backflow of external water bodies.

Description

A rain and sewage confluence interception device

technical field

The invention relates to the technical field of sewage treatment, in particular to a rain-sewage confluence interception device.

Background technique

With the development of the industrial economy and the discharge of waste water in people's daily life, the rivers in many cities have been seriously polluted, and the problem of waterlogging in cities has become increasingly serious. This problem is universal across the country. Based on my country's national conditions and the status quo of each city, except for some emerging cities (such as Shenzhen and Zhuhai), the old urban areas of most cities are built according to the confluence system, and it is difficult to change the status quo in a short period of time, so in the implementation It is difficult to completely divert rain and sewage in the whole area during sewage renovation, and it is inevitable to retain the combined system of rain and sewage in some areas. The interception renovation is a commonly used method in the renovation of rain and sewage combined areas at home and abroad. It is widely used in the sewage reconstruction of old urban areas. This transformation method has a series of advantages such as strong operability, small investment and quick results, convenient construction, and little impact on nearby residents during the construction process. However, this transformation method is due to During the rainy season, a large amount of rainwater will enter the interceptor, which will inevitably have a certain impact on the normal operation of the sewage pipe network and sewage treatment plant. After the renovation, river water was poured back into the sewage pipe network, and some areas even aggravated the occurrence of urban waterlogging after the renovation. If the above-mentioned problems cannot be solved well, not only will the completed sewage collection and treatment system not be able to fully play its due role, the investment benefit and social benefit will be reduced, but it will also bring certain problems to the normal production and life of the masses. Impact. Therefore, it is necessary to develop an intercepting device with convenient construction, long service life and good interception effect to achieve the purpose.

Contents of the invention

In view of this, the object of the present invention is to provide a rain-sewage confluence intercepting device to solve the technical problems in the prior art.

The rain and sewage confluence interception device provided by the present invention includes a well body, a separation plate, an overflow weir, a louvered valve and a float. The well body is integrally injection-molded with polymer materials, and the well body is provided with a confluence pipe, An overflow pipe and a shut-off pipe; the inside of the well body is divided into a water inlet chamber, a drainage chamber and an overflow chamber by the overflow weir, a louver valve and a separation plate; the confluence pipe communicates with the water inlet chamber, The overflow pipe communicates with the overflow chamber, and the shut-off pipe communicates with the drainage chamber; the floats are arranged on both sides of the overflow weir, and can be vertically positioned on the overflow weir. The direction moves up and down; the float is connected with the louver valve to control the opening of the louver valve. When the water level in the water inlet chamber increases, the float rises with the water level to make the louver valve open. degree becomes smaller, and when the water level in the water inlet chamber drops, the floater descends to increase the opening degree of the louver valve.

Preferably, the confluence pipe is arranged opposite to the overflow pipe, and the height of the overflow pipe is lower than the confluence pipe; the interceptor pipe is arranged between the confluence pipe and the overflow pipe and is close to The position of the overflow pipe is close to the bottom of the well body, and the height of the interceptor is lower than that of the overflow pipe.

Preferably, the overflow weir is arranged in the middle between the confluence pipe and the overflow pipe, and its upper end is lower than the upper end of the confluence pipe and higher than the upper end of the overflow pipe; the louvered The valve is arranged at the lower end of the overflow weir and is connected with the overflow weir; the overflow weir and the louver valve separate the inner chamber of the well body into the water inlet chamber and the second chamber.

Preferably, the isolation plate is arranged between the overflow weir and the lower end of the overflow pipe, one end of which is connected to the overflow weir and perpendicular to the overflow weir, and the isolation plate is connected to the overflow weir The other end of the isolation plate is connected to the well wall at the lower end of the overflow pipe; the isolation plate separates the second chamber into the overflow chamber and the drainage chamber. cavity.

Preferably, the upper end of the overflow weir is in the shape of a curve with a low center and high ends, and the lowest end of the curve is lower than the upper end of the confluence pipe and higher than the upper end of the overflow pipe.

Preferably, a drain hole is provided on the overflow weir between the connection with the isolation plate and the louver valve.

Preferably, the louver valve includes a flexible rope, a baffle and a rotating shaft, and there are a plurality of baffles, which are uniformly distributed on the overflow weir in the transverse direction; the rotating shaft is provided at both ends of the baffle , the end of the rotating shaft not connected with the baffle is installed on the overflow weir, the rotating shaft can rotate freely relative to the overflow weir; the flexible rope is wound on the rotating shaft, All the rotating shafts are connected in series, and the upper end of the flexible rope is connected with the buoy.

Preferably, the isolation plate is a curved plate, the middle of which is lower, and the two sides are raised, one end of which is connected to the overflow weir above the weir, and the other end is connected to the On the well body at the lower end of the pipe.

The rain and sewage confluence interception device provided by the present invention, the well body is integrally injection-molded with polymer materials, which solves the leakage problem of the traditional "brick well" and prevents secondary pollution. The water inlet chamber, drainage chamber and overflow chamber The reasonable setting of the three chambers enables the device to realize the confluence and interception of rain and sewage, and also solves the problem of backflow of external water bodies.

Description of drawings

Through the following description of the embodiments of the present invention with reference to the accompanying drawings, the above-mentioned and other objects, features and advantages of the present invention will be more clear, in the accompanying drawings:

Fig. 1 shows the schematic cross-sectional view of the rain-sewage confluence interception device of the present invention;

Fig. 2 is the side view of Fig. 1;

Fig. 3 shows the flow direction schematic diagram when rainwater and sewage flow in when the rainwater and sewage flow into the rainwater confluence and interception device of the present invention is less;

Fig. 4 shows the flow direction schematic diagram when rainwater and sewage are discharged when the rainwater confluence and interception device of the present invention has less rainwater;

Fig. 5 shows a schematic diagram of the flow of rainwater when the rainwater confluence and interception device of the present invention has more rainwater;

FIG. 6 is a partial enlarged view of part A in FIG. 1 .

detailed description

Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

As shown in Figure 1, the rain and sewage confluence and interception device provided by the present invention includes a well body 1, a well cover 2, an inspection port 3, a water inlet chamber 4, a drainage chamber 5, an overflow chamber 6, a separation plate 7, a confluence pipe 8, an intercepting Pipe 9, overflow pipe 10, overflow weir 11, weep hole 12, float 13 and shutter valve 14. The well body 1 in the rain-sewage confluence interception device of the present invention is formed by integrated injection molding of polymer materials, which avoids the leakage problem of traditional "brick wells" and improves production efficiency. An inspection opening 3 is arranged on the upper part of the well body 1 , preferably, the inspection opening 3 can be formed integrally with the well body 1 or separately formed (in this embodiment, separately formed). The components in the well body 1 can be inspected and maintained through the inspection port 3 . The well cover 2 is arranged on the upper end of the inspection port, and the well cover 2 can act as a seal to prevent the sewage smell in the well body 1 from leaking out, and also prevent external debris from falling into the well body 1 .

One side of the well body 1 is provided with the confluence pipe 8, and the overflow pipe 10 is provided on the side opposite to the confluence pipe 8 on the well body 1, and the height of the overflow pipe 10 is lower than the confluence pipe 8. The cutoff pipe 9 is symmetrically arranged on the well body 1 between the confluence pipe 8 and the overflow pipe 10 and close to the overflow pipe 10 . The height of the interceptor 9 is close to the bottom of the well body 1 shown and lower than the overflow pipe 10 .

The overflow weir 11 is arranged approximately in the middle between the confluence pipe 8 and the overflow pipe 10 . The overflow weir 11 divides the inner chamber of the well body 1 into two left and right cavities, which are respectively the water inlet chamber 4 and the second chamber 101 communicated with the confluence pipe 8 . The isolation plate 7 is arranged between the overflow weir 11 and the lower end of the overflow pipe 10, the isolation plate 7 is arranged approximately perpendicular to the overflow weir 11, and the isolation plate 7 divides the overflow The pipe 10 is isolated from the shut-off pipe 9, and the separation plate 7 divides the second chamber 101 into upper and lower chambers, which are the overflow chamber 6 communicating with the overflow pipe 10 and the shut-off chamber 6 respectively. The pipe 9 is connected to the drainage cavity 5 . On the lower side of the connection between the overflow weir 11 and the separation plate 7, the louver valve 14 is arranged near the lower end, between the louver valve 14 and the overflow weir 11 and the The overflow weir 11 between the joints of the isolation plates 7 is provided with a drain hole 12, preferably, one or more drain holes 12 may be provided. The water inlet chamber 4 and the drain chamber 5 are communicated through the louver valve 14 and the drain hole 12 .

As shown in FIG. 2 , the upper end of the overflow weir 11 is lower than the upper end of the confluence pipe 8 and higher than the upper end of the overflow pipe 10 . Preferably, the upper end of the overflow weir 11 is in the shape of a curve with a low center and high ends, and the lowest end of the curve is lower than the upper end of the confluence pipe 8 and higher than the upper end of the overflow pipe 10; The isolation plate 7 is a curved plate, the middle of which is lower, and the two sides are tilted. One end is connected to the overflow weir 11 above the weir 12, and the other end is connected to the overflow pipe 10. On the well body 1 at the lower end. Between the overflow weir 11 and the overflow pipe 10, the separation plate 7 is in a state where one end is high and the other end is low, that is, the end connected to the overflow weir 11 is higher, and the side close to the overflow pipe 10 One end is lower, which is conducive to the smooth passage of water.

As shown in FIG. 1 and FIG. 2 , the floats 13 are arranged on both sides of the overflow weir 11 , and the floats 13 can move up and down on the overflow weir 11 in a vertical direction. As shown in FIG. 6 , the louver valve 14 includes a flexible rope 141 , a baffle 142 and a rotating shaft 143 , and there are multiple baffles 142 uniformly distributed on the overflow weir 11 laterally. The two ends of the baffle plate 142 are provided with the rotating shaft 143, and the end of the rotating shaft 143 that is not connected with the baffle plate 142 is installed on the overflow weir 11, and the rotating shaft 143 is relatively to the The overflow weir 11 can rotate freely. The flexible rope 141 is wound on the rotating shaft 143 so as to connect all the rotating shafts 143 in series, and the upper end of the flexible rope 141 is connected with the buoy 13 . When the float 13 rises, it drives the rotating shaft 143 to rotate clockwise as shown in FIG. 6 , and the baffle 142 also rotates clockwise, thereby reducing the opening of the louver valve 14 . When the float 13 descends, the water flow in the water inlet chamber 4 pushes the baffle plate 142 to rotate counterclockwise as shown in FIG. 6 , thereby increasing the opening degree of the louver valve 14 .

The working process of the rain-sewage confluence interception device of the present invention is:

As shown in Figure 3 and Figure 4, when the flow of sewage or initial rainwater in the dry season is small, the sewage and initial rainwater enter the water inlet chamber 4 through the confluence pipe 8, and the float 13 is located at a lower position due to the lower water level. position, the louver valve 14 is in a state with a large opening, so sewage and rainwater enter the drainage cavity 5 through the louver valve 14, and then flow into the sewage treatment plant through the intercepting pipe 9.

As shown in Figure 5, after entering the rainy season, with the continuous increase of the amount of rainwater, the water level in the water inlet chamber 4 will increase, and at the same time, the float 13 will rise with the water level, so that the louver valve 14 is in a relatively open position. The small state reduces the flow of rainwater flowing into the drainage chamber 5, preventing excessive rainwater from entering the sewage treatment plant through the drainage chamber 5 and the intercepting pipe 9; the water level in the water inlet chamber 4 rises to the When the upper end of the overflow weir 11 is reached, the rainwater in the water inlet chamber 4 will overflow the overflow weir 11 and flow into the overflow chamber 6. At this time, due to the small opening of the louver valve 14 , so most of the rainwater will overflow through the overflow weir 11 and flow into the overflow cavity 6, and be discharged into the water body through the overflow pipe 10. After the rainfall ends, the water level in the water inlet chamber 4 begins to drop, and the float 13 also drops with the water level. When the water level drops below the upper end of the overflow weir 11, the rainwater cannot overflow the overflow weir 11. At this time, because the float 13 is still at a higher position, and the shutter valve 14 is still in a state with a small opening, so the rainwater in the water inlet chamber 4 mainly flows into the drainage chamber through the drain hole 12 5, the water level in the water inlet chamber 4 can continue to drop, so that the float 13 can be lowered, and the opening of the shutter valve 14 can be increased, so that the rainwater in the water inlet chamber 4 can pass through the The louver valve 14 enters the drainage cavity 5, and finally flows into the sewage treatment plant through the intercepting pipe 9.

Due to the installation of the overflow weir 11, when the water level of the external water body rises, the water in the external water body is poured into the overflow chamber 6 through the overflow pipe 10, and the overflow weir 11 can prevent the water in the external water body from The water is poured backward into the water inlet chamber 4 and the drainage chamber 5, thereby preventing a large amount of water in the external water body from entering the sewage treatment plant.

The rain-sewage confluence interception device provided by the present invention can use polymer materials according to the situation, preferably, thermoplastics or glass fiber reinforced thermosetting plastics can be selected.

Finally, it should be noted that obviously, the above-mentioned embodiments are only examples for clearly illustrating the present invention, rather than limiting the implementation. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims (8)

1. a confluence of rainwater and sewage cut-off equipment, it is characterised in that include well body, division board, downflow weir, louvered valve and float, described well body adopts macromolecular material integrated injection molding, and described well body is provided with collecting fitting, overflow pipe and intercepting sewer; In described well body, portion is separated out intake antrum, drain chamber and overflow cavity by described downflow weir, louvered valve and division board; Described collecting fitting connects with described intake antrum, and described overflow pipe connects with described overflow cavity, and described intercepting sewer connects with described drain chamber; Described float is arranged on the both sides of described downflow weir, and vertically can move up and down on described downflow weir; Described float is connected with louvered valve, and for controlling the aperture of described louvered valve, when the water level in described intake antrum increases, described float rises with water level, makes described louvered valve opening diminish; When described intake antrum middle water level declines, described float declines, and increases the aperture of described louvered valve.

2. confluence of rainwater and sewage cut-off equipment according to claim 1, it is characterised in that described collecting fitting and described overflow pipe are oppositely arranged, and the height of described overflow pipe is lower than described collecting fitting; Described intercepting sewer is arranged between described collecting fitting and described overflow pipe and near the position of described overflow pipe, close to the bottom of described well body, the height of described intercepting sewer is lower than described overflow pipe.

3. confluence of rainwater and sewage cut-off equipment according to claim 2, it is characterised in that described downflow weir is arranged on position middle between described collecting fitting and overflow pipe, and its upper end is lower than the upper end of described collecting fitting, higher than the upper end of described overflow pipe;Described louvered valve is arranged on the lower end of described downflow weir, and is connected with described downflow weir; The inner chamber of described well body is divided into described intake antrum and the second chamber by described downflow weir and louvered valve.

4. confluence of rainwater and sewage cut-off equipment according to claim 3, it is characterized in that, described division board is arranged between described downflow weir and the lower end of overflow pipe, its one end is connected with described downflow weir and vertical with described downflow weir, described division board and downflow weir junction are positioned at the upside of described louvered valve, and the other end of described division board is connected on the borehole wall of described overflow pipe lower end; Described second chamber is divided into described overflow cavity and drain chamber by described division board.

5. confluence of rainwater and sewage cut-off equipment according to claim 3, it is characterised in that the shaped form that the upper end of described downflow weir is low in centre, two ends are high, the least significant end of this curve is lower than the upper end of described collecting fitting, higher than the upper end of described overflow pipe.

6. the confluence of rainwater and sewage cut-off equipment according to claim 4 or 5, it is characterised in that on described downflow weir, is provided with spilled water hole between the junction of described division board and described louvered valve.

7. confluence of rainwater and sewage cut-off equipment according to claim 1, it is characterised in that described louvered valve includes flexible strand, baffle plate and rotation axle, and described baffle plate has multiple, laterally uniform on described downflow weir; The two ends of described baffle plate are provided with described rotation axle, and one end that described rotation axle is not connected with described baffle plate is arranged on described downflow weir, and described rotation axle is free to rotate relative to described downflow weir; Described flexible strand is wrapped on described rotation axle, is together in series by all rotation axles, and the upper end of described flexible strand is connected with described float.

8. confluence of rainwater and sewage cut-off equipment according to claim 6, it is characterised in that described division board is curved slab, it is middle relatively low, and both sides tilt, and its one end is connected on described downflow weir, being positioned at the top of described spilled water hole, other end is connected on the well body being positioned at described overflow pipe lower end.