CN106480966A - A kind of rain sewage dams and auto purification type sand-catching apparatus - Google Patents

Abstract

The invention belongs to the technical fields of municipal engineering and environmental protection, and in particular relates to a rain and sewage interception and self-cleaning sand settling device, which includes a conical interception well, an inverted siphon, a control well, a check valve, and a floating ball mechanical linkage control device. In the early stage of rainfall, the rainwater and sediment in the conical interception well pass through the sand outlet at the bottom of the interception well, and are intercepted through the inverted siphon into the municipal sewage pipe network. As the rainfall continues, the water level in the interception well rises, causing the water level in the connected control well to rise continuously. The floating ball in the well rises and drives the horizontal control baffle to move horizontally through gear linkage to push open the annular check valve, and the conical interception well Inverted siphon closed. At this time, the rainwater with relatively low concentration is discharged into the receiving water body through the municipal rainwater pipe network.

Description

A rain and sewage interception and self-cleaning sand settling device

technical field

The invention belongs to the technical fields of municipal engineering and environmental protection, and in particular relates to an initial rain sewage interception and self-purification sand settling device, which can intercept initial rainwater and realize the self-cleaning function of the interception well through an inverted siphon device.

Background technique

The initial rainwater in the city dissolves a large amount of acid gas in the air, automobile exhaust, factory exhaust gas and other polluting gases in the early stage of rainfall. Mud and garbage, etc., make the rainwater contain a large amount of organic matter, pathogens, heavy metals, grease, suspended solids and other pollutants. Therefore, the pollution level of the initial rainwater is high, usually exceeding the pollution level of ordinary urban sewage. If the initial rainwater is directly discharged into the river course or the natural receiving water body, it will cause very serious pollution to the water body, and the initial rainwater must be collected and treated.

Therefore, it is imperative to develop an interception well device that automatically intercepts the initial rainwater in the city. Meanwhile, most of the urban rainwater collection wells are distributed on the main arterial roads of the city, sinking a large amount of sand and impurities every day. Therefore, an initial rainwater interception and self-cleaning sand settling device is designed to automatically remove the silt in the device while intercepting the initial rainwater. The device has the advantages of simple structure, environmental protection, energy saving, economy and safety, and is convenient for popularization and use.

Contents of the invention

The purpose of the present invention is to provide a rainwater interception and self-cleaning sand settling device. The invention intercepts the rainwater runoff at the initial stage of rainfall to the sewage treatment plant for treatment and discharge, and automatically removes the silt in the well through the inverted siphon effect. The device has the advantages of simple structure, environmental protection, energy saving, economy and safety, and is convenient for popularization and use.

In order to achieve the above object, the present invention proposes a rainwater interception and self-cleaning sand settling device, which can be installed in the rainwater pipeline inspection well or the forebay of the pumping station. The device includes a conical interception well, an inverted siphon, a control Well, check valve and float mechanical linkage control device, in which:

The conical interception well is connected by an upper cuboid and a lower conical body. Rainwater inlets and rainwater outlets are respectively arranged at different heights of the upper cuboid. The position of the rainwater inflow is higher than that of the rainwater outlet; the rainwater outflow The rainwater outlet is connected to the rainwater outlet pipe, and a check valve is installed at the connection between the rainwater outlet and the rainwater outlet pipe. The check valve can not only prevent the incoming rainwater from flowing out from the rainwater outlet, but also avoid The rainwater pours back into the conical interception well; there is a grit outlet at the bottom of the lower cone, the grit outlet is connected to the inlet of the inverted siphon, the outlet of the inverted siphon is connected to the sewage outlet pipe, and the outlet of the inverted siphon is connected to the sewage outlet pipe A sewage check valve is installed at the place; the inverted siphon opening and closing control port is provided on the wall of the inverted siphon directly below the grit outlet, and the inner side of the opening and closing control opening of the inverted siphon is provided with a ring check valve, and the top is a circular one. The horizontal control baffle is installed in the float control box, the horizontal control baffle can enter the inverted siphon through the opening and closing control port of the inverted siphon, and the horizontal control baffle is used for sealing the inverted siphon; There is a control well on the side, and a connection port is provided on the well wall connecting the conical interception well and the control well, so that the conical interception well and the control well are connected, and the central axis of the connection port is equal to the lower edge of the rainwater outlet The control well is equipped with a floating ball mechanical linkage control device, and the floating ball mechanical linkage control device is located at a certain distance below the communication port; the bottom end of the outer wall of the control well is provided with a permeable hole, and the permeable hole is sealed by a permeable material. The accumulated water in the control well can infiltrate into the soil through the permeable material to ensure that the float control device in the control well will not be soaked in water when it is not rainy.

In the present invention, the float mechanical linkage control device is composed of a vertical control link, a horizontal control baffle, a float control box, a rotating shaft, a conversion gear and a control float. The float control box is located on one side of the inverted siphon, and the horizontal control block The board is installed in the float control box, and the vertical control link passes through the float control box vertically, and the outer surface of the vertical control link is provided with a certain distance of sawtooth, and the sawtooth of the vertical control link meshes with the conversion gear , the conversion gear can rotate around the shaft; the upper surface of the horizontal control baffle is provided with a certain distance of sawtooth, the horizontal control baffle is meshed with the conversion gear, and the horizontal control baffle and the vertical control link are realized through the rotation shaft and the conversion gear The two ends of the rotating shaft are fixed on the box body of the float control box; the top of the vertical control link is installed with a control float, which can move up and down according to the water level in the control well, and control the horizontal control baffle. The horizontal movement pushes open the annular check valve, so as to realize the opening and closing control of the horizontal control baffle on the inverted siphon.

The working principle of the present invention is as follows: in the early stage of rainfall, the grit outlet at the bottom of the cone is in the open state, and the initial rainwater carrying coarse particles such as gravel enters the interception well through the rainwater inlet, and through the inverted siphon, the initial rainwater and silt are intercepted into the municipal The sewage pipe network realizes the initial rainwater interception and sand settling self-purification function; as the rainfall continues, the amount of rainwater flowing into the interception well continues to increase. When the interception capacity of the municipal sewage pipe network is exceeded, the rainwater will enter the control well through the connecting port. As a result, the water level in the control well continues to rise, the control float moves up with the water level and prompts the horizontal control baffle to move horizontally, pushes the annular check valve to close the inverted siphon, and then the check valve at the rainwater outlet is pushed Open, the rainwater with relatively low concentration enters the municipal rainwater pipe network through the outflow pipe, and finally discharges into the receiving water body.

The beneficial effects of the present invention are as follows: first, the device does not require external mechanical energy, which reduces maintenance costs; second, the device is simple to process and can be mass-produced and applied; third, environmental protection and energy saving, the device can not only intercept cities with high pollution loads In addition, it can realize the automatic cleaning of silt and sand settling in the device through the inverted siphon effect; the fourth is that it is widely used, and the device can be popularized and applied in the rainwater pipe network system of various cities, thereby promoting the improvement of urban water environment quality.

Description of drawings

Fig. 1 is a schematic diagram of the main structure of the present invention.

Fig. 2 is a structural schematic diagram of the annular check valve of the present invention.

Fig. 3 is a structural schematic diagram of the float control box of the present invention.

Fig. 4 is a schematic diagram of the structure of the horizontal control baffle in the present invention.

Numbers in the figure: 1 is the rainwater inlet, 2 is the wall of the interception well, 3 is the conical interception well, 4 is the rainwater outlet, 5 is the rainwater check valve, 6 is the rainwater outflow pipe, and 7 is the sand outlet , 8 is the opening and closing control port of the inverted siphon, 9 is the inverted siphon, 10 is the sewage check valve, 11 is the sewage outflow pipe, 12 is the vertical control connecting rod, 13 is the horizontal control baffle, 14 is the float control box 15 is a rotating shaft, 16 is a conversion gear, 17 is a control float, 18 is a communication port, 19 is a control well, 20 is a control well outer wall, 21 is a permeable hole, 22 is an annular check valve, and 23 is a support plate.

detailed description

Further description will be made below in conjunction with drawings and embodiments.

Embodiment 1: As shown in Figure 1, the device consists of a rainwater inlet 1, an interception well wall 2, a conical interception well 3, a rainwater outlet 4, a rainwater check valve 5, a rainwater outflow pipe 6, a sink Sand outlet 7, inverted siphon opening and closing control port 8, inverted siphon 9, sewage check valve 10, sewage outflow pipe 11, vertical control connecting rod 12, horizontal control baffle 13, float control box 14, rotating shaft 15 , conversion gear 16, control float 17, communication port 18, control well 19, control well outer wall 20, permeable hole 21, annular check valve 22 and support plate 23. The conical interception well 3 is composed of an upper cuboid and a lower conical body, the upper cuboid is 3000mm long, 1500mm wide, and 3000mm high, and the lower conical body is 3000mm long, 1500mm wide, and 1000mm high; A rainwater inlet 1 with a diameter of 1200mm is set at 700mm; a rainwater outflow pipe 6 with a diameter of 1200mm is set at a place 2100mm from the top of the cuboid on the left side of the conical interception well 3, and is connected with the rainwater pipe network; A check valve 5 is installed at the joint of the well wall 2, which prevents the inflow rainwater from flowing out directly through the rainwater outlet pipe 6, and prevents the rainwater from pouring back into the rainwater pipe; Sand outlet 7; an inverted siphon 9 is connected below the sand outlet 7, and the inverted siphon 9 is connected with the sewage outflow pipe 11; a 300mm wide, high The control port 8 of 50mm is equipped with an annular check valve 22 inside the control port to prevent rainwater from directly entering the control well through the control port. A horizontal control baffle 13 with a length of 1400mm, a width of 300mm and a height of 50mm is set to pass through the control port 8, and the horizontal control baffle is required to seal the inverted siphon 9; A control well 19 with a width of 1000 mm and a depth of 5000 mm; a communication port 18 with a diameter of 300 mm is provided on the common wall of the conical interception well 3 and the control well 19, so that the conical interception well 3 and the control well 19 are connected, wherein the communication port 18 The central axis of the rainwater outlet is flush with the lower edge of the rainwater outlet 4; a float control box 14 with a length of 1500mm, a width of 500mm and a height of 200mm is arranged in the control well 19 and outside the conical interception well 3, and the float control box 14 is located at a certain distance below the communication port 18 and fixed by the support plate 13; a permeable hole 21 with a width of 300mm and a height of 100mm is opened at the bottom of the control well outer wall 20, and is closed with a permeable material so that the accumulated water in the control well 19 The soil can be infiltrated through the water-permeable material to ensure that the float mechanical linkage control device in the control well 19 can not be soaked in water when it is not rainy.

Float mechanical linkage control device is made up of vertical control link 12, horizontal control baffle plate 13, float control box 14, rotating shaft 15, conversion gear 16 and control float 17. A section of sawtooth with a distance of 400mm is set on the upper surface of the horizontal control baffle 13, the horizontal control baffle 13 is installed in the float control box 14, the vertical control link 12 is 600mm long, 300mm wide, and 50mm thick, on the outer surface Set a sawtooth with a distance of 400mm, and by configuring a steel shaft 15 with a length of 400mm and a diameter of 20mm and a conversion gear 16 with a length of 300mm and a diameter of 100mm, the linkage between the horizontal control baffle plate 13 and the vertical control link 12 is realized. A control float 17 with a diameter of 200 mm and a height of 200 mm is installed on the top of the connecting rod 12. The control float 17 can move up and down according to the water level change in the control well 19, and the level control baffle 13 can move horizontally to push open the annular check valve. 22, thereby realizing the opening and closing control of the inverted siphon 9.

When the device is applied to initial rainwater interception and sand settling work, at the initial stage of rainfall, the sand settling outlet 7 is in an open state, and the initial rainwater and gravel enter the conical interception well 3 through the rainwater inlet 1, and through the inverted siphon effect, the Initial rainwater and sediment in the well are intercepted into the sewage pipe network through the sewage outflow pipe 11, thereby completing the functions of initial rainwater interception and sand settling self-purification. As the rainfall continues, the amount of rainwater flowing into the interception well 3 continues to increase. When the interception capacity of the sewage pipe network is exceeded, the rainwater will enter the control well 19 through the connection port 18, and the water level in the control well will continue to rise, making the control float. The upward movement and the horizontal movement of the horizontal control baffle push open the annular check valve 22 and close the inverted siphon 9. At this time, the check valve 5 at the rainwater outlet is pushed open, and the rainwater with relatively low concentration passes through the rainwater The outflow pipe 6 enters the municipal rainwater pipe network, and finally discharges into the receiving water body.

Claims (2)

1. a kind of rain sewage dams and auto purification type sand-catching apparatus, before described device is mountable to storm sewer inspection shaft or pumping plant Chi Zhong, device includes taper Vatch basin, inverted siphon, controls well, non-return valve and ball float mechanical linkage control device, and its feature exists In：

Taper Vatch basin is connected by top cuboid and lower cone body, in the differing heights punishment of described top cuboid Mouth She Zhi not become a mandarin and rainwater goes out head piece by rain, rainwater enters head piece position and goes out head piece higher than rainwater；Rainwater goes out head piece and rainwater Outflow tube connects, and rainwater goes out head piece and is provided with non-return valve with rainwater outflow tube junction, and described non-return valve can prevent the rain that becomes a mandarin Water goes out the short stream of head piece from rainwater and flows out, and the rainwater being again avoided that in storm sewer pours in down a chimney in entrance taper Vatch basin；In lower cone Body bottom is provided with sand setting outlet, and sand setting outlet connects inverted siphon import, and inverted siphon outlet is connected with sewage outflow tube, inverted siphon Outlet and sewage outflow tube junction are provided with sewage water back valve；Inverted siphon tube wall immediately below sand setting outlet is provided with inverted siphon Open and close control mouth, annular non-return valve is installed inside control mouth, prevent rainwater to be directly entered control well by control mouth, ball float controls It is provided with horizontal controlling baffle plate, described horizontal controlling baffle plate can pass through inverted siphon to open and close control mouth, horizontal controlling baffle plate in case Sealing for inverted siphon；Taper Vatch basin side is provided with control well, and taper Vatch basin sets with the borehole wall controlling well to be connected There is connected entrance so that taper Vatch basin is connected with controlling well, and the axis of connected entrance is equal with the lower limb that rainwater goes out head piece Together；Control in well and be provided with ball float mechanical linkage control device, described ball float mechanical linkage control device is located at below connected entrance At a certain distance from；The bottom controlling well outer wall is provided with permeable hole, and described permeable hole is sealed by seepy material, controls in well Hydrops soil can be penetrated into by seepy material it is ensured that controlling during the non-rainy day float ball controller in well will not be immersed in water In.

2. a kind of rain sewage according to claim 1 dams with auto purification type sand-catching apparatus it is characterised in that ball float machinery joins Dynamic control device by vertical controls connecting rod, horizontal controlling baffle plate, ball float control chamber, rotating shaft, conversion gear and controls ball float to form, Ball float control chamber is located at inverted siphon side, and horizontal controlling baffle plate is installed in ball float control chamber, and horizontal controlling baffle plate one end energy In enough keying control mouth entrance inverted siphons through inverted siphon, vertical controls connecting rod passes perpendicularly through ball float control chamber, and vertical control is even The sawtooth of one segment distance is provided with the outer surface of bar, the sawtooth of described vertical controls connecting rod is meshed with conversion gear, institute State conversion gear can rotate around the axis；Vertical controls connecting rod is meshed with horizontal controlling baffle plate, by rotating shaft and conversion gear Realize horizontal controlling baffle plate and the linkage of vertical controls connecting rod；The two ends of rotating shaft are fixed on the casing of ball float control chamber；Vertically The top of controls connecting rod is provided with control ball float, controls ball float can to control according to controlling the SEA LEVEL VARIATION in well to move up and down Horizontal controlling baffle plate moves horizontally pushes annular non-return valve open, thus realize horizontal controlling baffle plate controlling to the keying of inverted siphon.