CN212453039U

CN212453039U - Take weir formula of discharge orifice to cut dirty system

Info

Publication number: CN212453039U
Application number: CN202020698429.3U
Authority: CN
Inventors: 徐鹏飞; 程寒飞; 甘露; 王琳
Original assignee: Huatian Engineering and Technology Corp MCC
Current assignee: Huatian Engineering and Technology Corp MCC
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-02-02
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a take weir formula of discharge orifice to cut dirty system. The system comprises a sewage interception pump station, wherein an interception weir is arranged at the position, close to the sewage interception pump station, of the downstream of the sewage interception pump station, and more than one discharge hole is formed in the preset liquid level on the interception weir. The utility model provides a weir formula cuts dirty system has adopted the weir that dams that has the discharge orifice to replace the rain gauge in the traditional system of cutting dirty, has solved current weir formula and has cut dirty facility behind the rain operation trouble problem, has realized cutting the function of dirty system recovery work behind the rain, can save actual engineering application investment greatly, has improved the stability of cutting dirty system.

Description

Take weir formula of discharge orifice to cut dirty system

Technical Field

The utility model relates to a drainage engineering and water environment control field, concretely relates to take weir formula of discharge orifice to cut dirty system.

Background

With the development of economy, the problems of poor water environment quality, serious damage to water ecology, multiple environmental hidden dangers and the like in some areas of China are prominent, the health of the masses is influenced and damaged, and the sustainable development of the economic society is not facilitated. The important reason for the generation of urban black and odorous water is that rainwater and sewage pipelines of a large number of urban drainage pipelines are connected in a mixed mode, and sewage pipelines of private parts of enterprises are connected directly into rivers, so that pollutants entering the water exceed the environmental capacity.

The sewage interception receiving pipe is the most direct and effective engineering measure for treating the black and odorous water body and is also the premise for adopting other technical measures. Sewage is intercepted and brought into a municipal sewage collecting and treating system by laying sewage intercepting pipelines along rivers and lakes and reasonably arranging a lifting (transferring) pump room.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides a novel weir type sewage intercepting system with a discharge hole.

In order to achieve the above object, the utility model discloses a take weir formula of discharge orifice to cut dirty system, including cutting dirty pump station the low reaches of cutting dirty pump station nearly cut dirty pump station department and be provided with the weir that dams predetermined liquid level is provided with more than one discharge orifice on the weir that dams.

Further, the drainage hole is a hole arranged on the weir body.

Further, the discharge hole is a triangular discharge weir crest arranged at the weir crest.

Further, a liquid level meter is arranged on the intercepting weir and is connected with a control device; when the liquid level of the sewage interception system is reduced to the discharge hole of the intercepting weir, the control device controls the sewage interception pump station to start.

The utility model discloses a weir system that dams sets up in the end that connects drainage system thoughtlessly, will thoughtlessly connect sewage to dampe to get into and intercept dirty pump station during the drought, gets into peripheral sewage system through promoting. When the liquid level of the upstream is higher than the weir crest during rain, the interfluent sewage directly overflows into the downstream through the intercepting weir at the moment. At the moment, in order to ensure the effective transfer of the sewage pipe network system and the inflow concentration of the sewage plant, the sewage interception pump station stops pumping when the liquid level of the sewage interception weir is higher than that of the sewage interception weir. After rain, when the liquid level of downstream water drops, the stored water on the upstream of the intercepting weir flows downstream through the drainage hole, and the liquid level of the intercepting pump station begins to drop. When the liquid level is reduced to the liquid level of the drainage channel, the intercepting pump station starts the water pump to operate, and the subsequent pump station restores the liquid level automatic control operation.

The utility model provides a weir formula cuts dirty system has adopted the weir that dams that has the discharge orifice to replace the rain gauge in the traditional system of cutting dirty, has solved current weir formula and has cut dirty facility behind the rain operation trouble problem, has realized cutting the function of dirty system recovery work behind the rain, can save actual engineering application investment greatly, has improved the stability of cutting dirty system.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1 is the weir that dams, 2 is the earial drainage hole, 3 is the box culvert upper reaches of misconnecting, 4 is the box culvert low reaches of misconnecting, 5 is the pump station of cutting dirty, 6 is the water pump of cutting dirty.

Fig. 2 is a schematic view of the different forms of the drain holes of the damming weir of the present invention.

Detailed Description

The present invention will be described in further detail with reference to fig. 1.

The source control sewage interception is to control sewage to be discharged to urban water from a source, and is mainly used for permanent engineering treatment of an urban water coastal sewage discharge port, a diversion rainwater pipeline initial rainwater or drought water discharge port, a confluence sewage system coastal discharge port and the like.

For the rain and sewage flow control pipe network in the old urban area, rain and sewage flow distribution is conditionally recommended. Due to the fact that the amount of rain and sewage diversion engineering and one-time investment are large, engineering implementation difficulty is large, the period is long, exogenous pollution treatment to urban water is mainly controlled, and sewage interception is carried out according to the principle of priority.

Sewage interception pipelines are laid along rivers and lakes, and a lifting (conveying) pump room is reasonably arranged to intercept and bring sewage into a municipal sewage collection and treatment system.

The sewage interception project firstly carries out the investigation of the water outlet, and aims to find out the type of the water outlet, the source of sewage and the specific problems, and master the water quantity and the water quality characteristics of the water outlet for discharging and intercepting.

The pollution sources of the discharge port investigation mainly comprise discharge port directly-discharged sewage and wastewater, confluence system pipeline rainy season overflow, shunt system rainwater pipeline initial rainwater or drought flow, unconventional water source water supplement and the like.

As shown in figure 1, a sewage intercepting pump pit is newly built at the tail end of a mixed rainwater box culvert, 3 sewage intercepting pumps (2 is 1 spare) are arranged in the sewage intercepting pump pit, and the downstream of the sewage intercepting pump pit adopts an intercepting weir with a drainage hole to intercept sewage.

When the box culvert is dry, sewage mixed and connected enters a cut-off pump pit, a liquid level meter is arranged in the cut-off pump pit, and when the liquid level of the sewage reaches H1, the cut-off pump station starts 1 sewage pump. When the liquid level reaches H2, 2 sewage pumps are started. The intercepted sewage enters the peripheral sewage pipe network system after being lifted by the pump.

During rain, when the upstream flowing water volume exceeds the intercepting multiple designed by the sewage intercepting pump station, the liquid level of the sewage intercepting pump station continuously rises, and when the liquid level reaches HH, all water pumps of the sewage intercepting pump station stop running in order to reduce the pressure of a sewage pipe network system and a downstream sewage treatment plant.

After rain, when the liquid level at the downstream of the box culvert descends, the water reserved in the sewage interception pump station is drained through the drainage hole, and when the liquid level of the sewage interception pump station reaches H0, the sewage interception pump station starts 2 water pumps to operate under the signal action of the liquid level meter. And the sewage intercepting pump station restores a liquid level automatic operation mode when the drought.

Claims

1. The utility model provides a take weir formula of discharge orifice to cut dirty system, its characterized in that, including cutting dirty pump station the low reaches of cutting dirty pump station nearly cut dirty pump station department and be provided with the weir of damming the weir on predetermined liquid level be provided with more than one discharge orifice.

2. A weir-type weir crest interception system as defined in claim 1 wherein said discharge orifice is a hole provided in the weir.

3. A weir-type sewage interception system as claimed in claim 1 wherein said discharge orifice is a triangular discharge weir disposed at the crest of the weir.

4. A weir type sewage interception system as claimed in claim 1 wherein a liquid level gauge is provided on the intercepting weir, the liquid level gauge being connected to the control means; when the liquid level of the sewage interception system is reduced to the discharge hole of the intercepting weir, the control device controls the sewage interception pump station to start.