CN204456411U - A kind of sub-prime component water conservancy diversion pond for high pollution rainwater and dry flow sewage - Google Patents

Abstract

The utility model discloses a diversion pool for high-pollution rainwater and dry sewage. The diversion pool is a closed rectangular structure, and water inlet holes and water outlet holes are respectively arranged on the longitudinal two ends of the diversion pool. , a U-shaped groove is arranged below the connection between the water inlet hole and the diversion pool, and a pollutant detection probe is arranged in the U-shaped groove; For the level gauge, a diversion hole is provided on the side of the water outlet hole of the diversion pool and the bottom of the same side wall as the liquid level gauge, and the diversion hole is connected with a self-priming pump and a reverse valve in turn. The utility model adopts the mode of concentration control and liquid level control, and realizes the maximum efficiency of diverting highly polluted rainwater and dry sewage. By setting the control concentration parameters, quantitative diversion control can be indirectly realized, and at the same time, it also beautifies the city. River water landscape.

Description

A diversion pool for highly polluted rainwater and dry sewage

technical field

The utility model relates to water resource treatment facilities, in particular to a diversion device for highly polluted rainwater and dry sewage in urban diversion system rainwater pipe networks and rainwater pumping stations.

Background technique

Urban river water bodies, as an important part of the city, have a huge impact on the life and production of urban residents. However, due to the pollution of rainwater runoff and the presence of pollutants deposited in the drainage pipes washed by sewage during drought, most of today's urban river water bodies have been polluted to varying degrees, making the construction of the urban ecological environment more difficult.

With the gradual deepening of research on the impact of urban runoff pollution on urban water bodies, the problem of rainwater pollution in urban drainage pipes and the phenomenon of pollutant deposition due to low flow in dry seasons have begun to attract attention. The presence of sediment in urban drainage pipes will directly lead to the decline of the flow capacity of the pipes, thereby reducing the drainage capacity of the drainage pipes. More importantly, in the diversion drainage system, the runoff of rainwater flows through the rainwater pipes to form highly polluted rainwater, which is directly discharged into urban water bodies, causing serious rainwater pollution; and due to the influence of mixed rain and sewage, the diversion system is often discharged into rivers due to drought. There is a huge amount of river drainage in dry currents; a large amount of pollutants in sewage are deposited in rainwater pipes on non-rainfall days, and sediments are washed out in large quantities during dry and rainy days when they are released into the river and directly enter natural water bodies, which often leads to It is black and odorous, seriously affects the water quality of the receiving water body, and destroys the ecological and environmental functions of the water system.

From the perspective of urban water environment protection and sustainable social development, it is a good idea to divert rainwater and dry sewage before entering the forebay of the rainwater pumping station, and then discharge it into rivers or make use of it after proper treatment and pollution reduction. an ideal development trend.

Patent No. 201110355177.X for the flap-type initial rainwater interception well, and patent No. 200920312599.7 for the initial rainwater automatic separation device, both use buoyancy devices such as buoys and flaps to separate clean rainwater from polluted rainwater, and then divert it away. These devices are an improved method of the traditional diversion volume method. The diversion is the runoff in the early stage of rainfall. The device structure is simple and does not require manual management. However, it is affected by rain intensity and catchment area, especially at the end of the pipe network, The first few millimeters of rainwater at the front end of the rainwater pumping station may not have the most obvious effect of intercepting sewage.

Contents of the invention

The purpose of this utility model is to overcome the respective defects of various existing rainwater and dry sewage diversion technologies, aiming at the actual situation of high-concentration rainwater and dry sewage in urban diversion system rainwater pipe networks and rainwater pumping stations, to provide a A diversion facility that utilizes concentration control and water level control modes to conduct diversion by mass and component. It can monitor the whole process of runoff pollution of rainwater pipelines, and directly reduce the risk of runoff pollution entering the river.

The utility model is realized through the following technical solutions.

A diversion pool for highly polluted rainwater and dry sewage, comprising a water inlet and a water outlet, characterized in that the diversion pool (1) is a closed rectangular structure, along the direction of the diversion pool ( 1) Water inlet holes (2) and water outlet holes (3) are respectively provided on both ends of the longitudinal direction, and a U-shaped groove (10) is arranged below the connection between the water inlet holes (2) and the diversion pool (1). A pollutant detection probe (6) is arranged in the groove (10), and the pollutant detection probe (6) is arranged on the side wall of the pool body, and is connected to the control panel (9) through the water quality signal input line (7); A liquid level gauge (13) is arranged on the same side wall of the longitudinal center position of the diversion pool (1) and the pollutant detection probe (6), and the liquid level gauge (13) communicates with the control panel ( 9) are connected; the water outlet side of the diversion pool (1) and the bottom of the same side wall as the liquid level gauge (13) are provided with a diversion hole (14), and the diversion hole (14) is connected with a self-priming pump ( 6) and reversing valve (15), self-priming pump (6) is connected with control panel (9) by wire; Manhole (12) is also arranged on the diversion pool (1).

The pool body of the diversion pool (1) has a length of 5-6m, a height of 3-4m, and a width of 3-4m.

The diversion pool (1) is a concrete structure.

The U-shaped groove (10) has a downward slope of 5-15 degrees.

The control panel (9) is installed in the monitoring room of the rainwater pumping station, and is equipped with an automatic detection system.

A baffle (11) is arranged on the front of the pollutant detection probe (6) and the front wall on one side of the water inlet to block the direct washing of the detection probe when the rainwater runoff is too large, so as to prolong the detection probe. service life.

The beneficial effects of the utility model are as follows:

(1) The high-pollution rainwater and dry-flow sewage diversion pool adopts the concentration control and liquid-level control mode, which maximizes the efficiency of diverting highly-polluted rainwater and dry-flow sewage, beautifies the urban river water landscape, and avoids High load impact on downstream processing structures. (2) Concentration control and liquid level control modes can be switched manually, which is easy to control and manage. (3) The design of the baffle can prolong the service life of the pollutant detection probe and avoid the direct impact of large water volume. (4) When there is no rainfall, clean water can be introduced through the manhole to flush the pool body, avoiding the deposition of pollutants. (5) Quantitative diversion control can be realized indirectly by setting the control concentration parameters.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a specific embodiment of the diversion pool of the present invention;

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

FIG. 3 is a schematic cross-sectional structure diagram at A-A in FIG. 2 .

The reference signs of the utility model are as follows:

1——— diversion pool 2——— water inlet hole

3——Water outlet 4——Drainage hole

5——Self-priming pump 6——Pollutant detection probe

7——Water quality signal input line 8——Signal output line

9——Control panel 10——U-shaped groove

11——Baffle 12——Manhole

13——liquid level gauge 14———liquid level signal input line

15——reverse valve

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

The utility model relates to a flow diversion facility which utilizes concentration control and water level control modes to conduct flow diversion by quality and component.

The concentration control proposed by the utility model refers to conducting diversion according to the concentration of pollutants in the outlet and the drainage pipeline when conducting rainwater diversion, selectively diverting diversion to adjust and store high-concentration rainwater, and realizing the maximum effect of rainwater pollution control change. Since the time required for the concentration of pollutants in discharged rainwater to reach the concentration peak is different under different rainfall types, the diversion time should correspond to the time of the peak concentration of pollutants, rather than simply intercepting the rainfall in the first few minutes or a few millimeters of rainfall run-off. According to the discharge requirements, different concentration control rules are set. When the concentration of rainwater pollutants after rainfall does not reach the control concentration, the rainwater will directly enter the rainwater pumping station or the river; The rainwater in the drainage pipe is stored until it is full.

The water level control proposed by the utility model refers to regulating and storing the water storage capacity of the rainwater pipe network at ordinary times. Due to the mixed leakage of dry sewage and rain sewage, a certain water level is formed in the pipe network, and the water level is selected according to the change of the water level. Flow timing and diversion time.

Referring to Fig. 1, Fig. 2 and Fig. 3, the diversion pool 1 of the present utility model is a closed rectangular structure, and the pool body length of the diversion pool 1 of the specific embodiment is 6m, high 3m, wide 3m, and is a concrete structure. A water inlet 2 and a water outlet 3 are respectively provided on both ends along the longitudinal direction of the diversion pool 1, and a U-shaped groove 10 is arranged below the connection between the water inlet 2 and the diversion pool 1, and a pollution filter is arranged in the U-shaped groove 10. The pollutant detection probe 6, the pollutant detection probe 6 is installed on the side wall of the pool body, and is connected with the control panel 9 through the water quality signal input line 7; All can pass through the pollutant detection probe 6 at the first time. The front wall of the pollutant detection probe 6 and the front wall of the water inlet side are provided with a baffle plate 11 to block the direct washing of the detection probe when the rainwater runoff is too large, so as to prolong the service life of the detection probe.

A liquid level gauge 13 is arranged at the longitudinal center position of the diversion pool 1 and on the same side wall of the pollutant detection probe 6, and the liquid level gauge 13 is connected with the control panel 9 through the liquid level signal input line 14; On the side of the hole, on the bottom of the same side wall as the liquid level gauge 13, a diversion hole 14 is provided, and the diversion hole 14 is connected with a self-priming pump 6 and a reverse valve 15 in turn, and the self-priming pump 5 is connected to the control panel 9 through a wire; A manhole 12 is also arranged on the diversion pool 1 .

The control panel 9 can be installed in the monitoring room of the rainwater pumping station, and is equipped with an automatic detection system.

The working principle of the utility model is as follows:

When the pollutant detection probe 6 detects that the water quality concentration reaches the set control concentration, the electric control panel 9 sends an instruction, which is transmitted to the self-priming pump 5 through the signal output line 8, and the self-priming pump 5 starts to work to remove the high pollution in the pool. The rainwater is diverted through the diversion hole 4 to the downstream follow-up treatment structure. When the pollutant detection probe 6 detects that the water concentration is lower than the set control concentration, the electric control panel 9 will issue an instruction, the self-priming pump 5 will stop working, and the clean rainwater will enter the forebay of the pump station through the outlet hole 3 .

When the water diversion mode is adopted in the dry season, the measured value of the liquid level gauge 13 is used for the control signal. Due to the mixed connection of rain and sewage, there will be a certain amount of water in the rainwater drainage pipe, and the liquid level will gradually increase with the accumulation of water. The liquid level gauge 13 monitors the water level in the pipe in real time, and the electric control panel 9 displays the pipe in real time. When the internal water level reaches the set value that needs to be drained, the electric control panel 9 issues an instruction, and the self-priming pump 5 starts to work. When the water level falls back to a lower water level, the electric control panel 9 issues an instruction again, and the self-priming pump 5 stops working. .

In addition, a reverse valve 15 is provided behind the self-priming pump 5 to prevent the water in the diversion pipeline from flowing back into the diversion pool.

When there is no rainfall, clean water can be introduced through the manhole 12 to flush the pool body, avoiding the deposition of pollutants.

The entire diversion pool body of the utility model is installed at the end of the regional rainwater pipe network and the front end of the forebay of the rainwater pumping station.

Claims (6)

1. the sub-prime component water conservancy diversion pond for high pollution rainwater and dry flow sewage, comprise inlet opening and weep hole, it is characterized in that, described water conservancy diversion pond (1) is the rectangle structure closed, the both ends of the surface longitudinal along water conservancy diversion pond (1) are respectively arranged with inlet opening (2) and weep hole (3), inlet opening (2) is provided with U-type groove (10) with the below of water conservancy diversion pond (1) connection, pollutant monitoring probe (6) is provided with in U-type groove (10), pollutant monitoring probe (6) is arranged on the sidewall of pond body, and be connected with control panel (9) by water quality signal input line (7), the longitudinal center position, pollutant monitoring probe (6) same sidewall of water conservancy diversion pond (1) are provided with content gauge (13), and content gauge (13) is connected with control panel (9) by liquid level signal input line (14), the weep hole side in water conservancy diversion pond (1), the bottom of content gauge (13) same sidewall is provided with pod apertures (14), pod apertures (14) is connected with self priming pump (6) and reversing valve (15) in turn, and self priming pump (6) is connected with control panel (9) by wire, manhole (12) is also provided with above water conservancy diversion pond (1).

2. a kind of sub-prime component water conservancy diversion pond for high pollution rainwater and dry flow sewage according to claim 1, it is characterized in that, the pond body length in this water conservancy diversion pond (1) is 5 ~ 6m, high 3 ~ 4m, wide 3 ~ 4m.

3. a kind of sub-prime component water conservancy diversion pond for high pollution rainwater and dry flow sewage according to claim 1, it is characterized in that, this water conservancy diversion pond (1) is concrete structure.

4. a kind of sub-prime component water conservancy diversion pond for high pollution rainwater and dry flow sewage according to claim 1, is characterized in that, described U-type groove (10) is downwards in the gradient of 5 ~ 15 degree.

5. a kind of sub-prime component water conservancy diversion pond for high pollution rainwater and dry flow sewage according to claim 1, it is characterized in that, described control panel (9) is arranged in the Control Room of rainfall pumping station, and is provided with automatic checkout system.

6. a kind of sub-prime component water conservancy diversion pond for high pollution rainwater and dry flow sewage according to claim 1, it is characterized in that, before described pollutant monitoring probe (6), the antetheca of side, inlet opening is provided with baffle plate (11), for blocking directly the washing away detection probe when Rainfall runoff is excessive, to extend the application life of detection probe.