1. A large-discharge-port vacuum sewage interceptor comprises an interceptor cavity (1) arranged at the tail end of a rainwater and sewage collecting pipe network, wherein one end of the interceptor cavity (1) is provided with a water inlet platform (2) butted with the rainwater and sewage collecting pipe network, and the other end is provided with a water outlet platform (3); the method is characterized in that: the water outlet platform (3) is connected with a municipal pipe network (4), and the interceptor cavity (1) is provided with an overflow cover (6) which can float up and down along with the water level in the interceptor cavity; a vacuum sewage pumping pipeline (7) is arranged in the interceptor cavity (1), and the vacuum sewage pumping pipeline (7) is connected with a vacuum sewage pipe network.

2. The large discharge vacuum sewage trap as recited in claim 1, wherein: the interceptor cavity (1) comprises an evacuation chamber (101) and a water inlet chamber (102), the vacuum sewage-pumping pipeline (7) is arranged in the evacuation chamber (101), the overflow cover (6) is arranged in the water inlet chamber (102), and a separation frame (103) is arranged between the evacuation chamber (101) and the water inlet chamber (102); a vacuum well cover (8) is fixedly arranged on the vacuum pumping chamber (101), and a water flow gap is formed between the vacuum well cover (8) and the overflow cover (6); the overflow cover (6) is provided with a filter plate (9), and the filter plate (9) is perpendicular to the water inlet direction and can turn around the bottom edge.

3. The large discharge vacuum sewage trap as recited in claim 1, wherein: the overflow cover (6) comprises a cover plate (601), and a floating ball (602) which is arranged below the cover plate (601) and drives the cover plate (601) to float up and down; two identical guide posts (104) are respectively arranged on opposite sides of the inner wall of the interceptor cavity (1), and bayonets (603) matched with the two guide posts (104) are respectively arranged on two sides of the cover plate (601).

4. The large discharge vacuum sewage trap as recited in claim 3, wherein: the top of the guide post (104) is provided with a limiting block (105).

5. The large discharge vacuum sewage trap as recited in claim 2, wherein: and a connecting hinge (10) is arranged between the bottom of the filter plate (9) and the cover plate (601).

6. The large discharge vacuum sewage trap as recited in claim 1, wherein: the top of the interceptor is also provided with a well cover (13), and the well cover (13) extends from the water inlet platform (2) to the water outlet platform (3).

7. The large discharge vacuum sewage trap as recited in claim 1, wherein: the rainwater and sewage collecting device is characterized in that a water inlet connecting piece (14) connected with a rainwater and sewage collecting pipe network is arranged on the water inlet platform (2), and a water outlet connecting piece (15) connected with a municipal pipe network (4) is arranged on the water outlet platform (3).

Background

In the construction of urban rainwater and sewage pipe networks, due to historical reasons or geographical conditions, rainwater collection pipe networks and sewage collection pipe networks in partial areas are not thoroughly separated, and some areas are shared. When raining, rain water and sewage flow into a collecting pipe at the same time. In response to this situation, there is a method of installing a vacuum collection well at the end of the collection pipe for collecting rainwater and sewage. The rainwater and the sewage are treated together through the vacuum well. The structure has higher use feasibility in areas with less rainfall. However, in some southern areas with large precipitation, when the precipitation is higher than the processing load of the vacuum well temporarily in rainy season, the vacuum pump will work all the time and work under ultrahigh load all the time, which may cause the vacuum pump to be damaged. Simultaneously, the rainwater can arrive a large amount of large granule impurity, causes vacuum well or vacuum line to block up to make the lost throughput of vacuum well, need the manual work to clear up, the later maintenance is inconvenient.

Disclosure of Invention

The invention aims to provide a large-discharge-port vacuum sewage interceptor which solves the problems that a vacuum collecting well in the existing rainwater and sewage blending pipeline has large workload and parts are easy to damage when the rainfall is large.

The technical scheme adopted by the invention for solving the technical problems is as follows: a large-discharge-port vacuum sewage interceptor comprises an interceptor cavity arranged at the tail end of a rainwater and sewage collecting pipe network, wherein one end of the interceptor cavity is provided with a water inlet platform butted with the rainwater and sewage collecting pipe network, and the other end of the interceptor cavity is provided with a water outlet platform; the water outlet platform is connected with a municipal pipe network, and the interceptor cavity is provided with an overflow cover which can float up and down along with the water level in the interceptor cavity; a water flow gap is arranged between the overflow cover and the interceptor cavity; a vacuum sewage pumping pipeline is arranged in the interceptor cavity and is connected with a vacuum sewage pipe network.

In order to prevent large-particle pollutants from entering a interceptor cavity to cause the blockage of a vacuum pipeline, the interceptor cavity comprises a vacuum pumping cavity and a water inlet cavity, the vacuum sewage pumping pipeline is arranged in the vacuum pumping cavity, the overflow cover is arranged in the water inlet cavity, and a separation frame is arranged between the vacuum pumping cavity and the water inlet cavity; a vacuum well cover is fixedly arranged on the vacuumizing chamber, and a water flow gap is formed between the vacuum well cover and the overflow cover; the overflow cover is provided with a filter plate, and the filter plate is perpendicular to the water inlet direction and can turn around the bottom edge.

Furthermore, the overflow cover comprises a cover plate and a group of floating balls arranged below the cover plate; guide pillars are respectively arranged on opposite sides of the inner wall of the interceptor cavity, a bayonet matched with the guide pillars is arranged on the cover plate, a limiting block is arranged at the top of each guide pillar, and a connecting hinge is arranged between the bottom of each filter plate and the cover plate. In order to prevent the overflow cover from being separated from the cavity of the interceptor or being washed away by rainwater when the water level rises, the top of the guide post is provided with a limiting block.

Preferably, a connecting hinge is arranged between the bottom of the filter plate and the cover plate.

The invention has the beneficial effects that: according to the invention, the overflow cover is arranged, the overflow cover can synchronously lift along with the water level in the cavity of the interceptor, when the water inflow is overlarge, the vacuum overflow cover lifts, and the water flow gap between the vacuum overflow cover and the vacuum well cover is smaller, so that the amount of sewage entering the cavity of the interceptor can be reduced, most of sewage directly flows into a municipal pipe network through the water outlet platform, the working load of a vacuum pump and accessories of the vacuum pump in the cavity of the interceptor is reduced, and the failure rate and the later maintenance cost are reduced. The filter plate can prevent large-particle substances from entering the interceptor cavity when the water flows normally, and the blockage of a vacuum pipeline is avoided. When the inflow is big, the overflow lid come-up, and the filter plate can empty automatically and press on the vacuum well lid, and the municipal pipe network is washed into to the large granule material that keeps apart before under the impact of big rivers to reach the purpose of automatic dirt removal, reduce the cost of manual maintenance.

The invention will be explained in more detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the vacuum manhole cover according to the present invention.

Fig. 3 is a schematic perspective view of the vacuum manhole cover of the present invention after being opened.

Fig. 4 is a schematic perspective view of the overflow cover of the present invention.

Detailed Description

The embodiment, as shown in fig. 1 to 4, a big discharge port vacuum sewage interceptor, including setting up at the terminal interceptor cavity 1 of dirty collection pipe network of rain, the one end of interceptor cavity 1 is provided with collects the platform 2 of intaking of pipe network butt joint with dirty collection of rain, and the other end is provided with water platform 3, it is provided with municipal pipe network 4 to go out water platform 3 connection, for convenient the connection, it collects the pipe network connection's the connecting piece 14 of intaking with dirty collection pipe network to be provided with on the platform 2 of intaking, it is provided with the connecting piece 15 of going out water to be connected with municipal pipe network 4 on the platform 3 of going out water. The water inlet connecting piece 14 and the water outlet connecting piece 15 are fixedly arranged on the water inlet platform 2 and the water outlet platform 3 through bolts respectively, and mounting holes connected with pipelines are formed in the water inlet connecting piece 14 and the water outlet connecting piece 15. For whole buried underground, the top of intercepting ware still is provided with well lid 13, and well lid 13 extends to play water platform 3 from water platform 2 always to form a relative sealed structure, easy to assemble uses. Sewage and rainwater flow into interceptor cavity 1 through platform 2 of intaking in, when intercepting in the ware cavity 1 water-logging, sewage and rainwater flow into municipal pipe network 4 through play water platform 3.

The interceptor cavity 1 comprises an evacuation chamber 101 and an inlet chamber 102, wherein a vacuum sewage pumping pipeline 7 is arranged in the evacuation chamber 101, and the vacuum sewage pumping pipeline 7 is connected with a vacuum sewage pipe network. The vacuum sewage extraction pipe 7 is provided with a diaphragm valve 11, and a vacuum control unit 12 for controlling the opening and closing of the diaphragm valve 11, and the vacuum control unit 12 includes a vacuum induction pipe 5 provided in the vacuum extraction chamber 101. When sewage and rainwater flow into through the platform of intaking 2 and hold back in the ware cavity 1, because the continuous increase of liquid level, place the vacuum induction pipe 5 internal pressure that holds back in the ware cavity 1 and also constantly promote, when the pressure in the vacuum induction pipe 5 promoted the setting value, the solenoid valve of installing in vacuum control unit 12 was put through, and the solenoid valve begins work, controls diaphragm valve 11 work on the vacuum suction sewer pipe way 7, will hold back in the ware cavity 1 in the sewage suction vacuum sewer pipe network.

The overflow cover 6 is arranged in the water inlet chamber 102, and a separation frame 103 is arranged between the vacuumizing chamber 101 and the water inlet chamber 102. The last fixed vacuum well lid 8 that is provided with of evacuation chamber 101, be provided with the rivers clearance between vacuum well lid 8 and overflow lid 6, the size in rivers clearance can be adjusted according to the sewage treatment who holds back ware cavity 1.

The overflow cover 6 comprises a cover plate 601, and a floating ball 602 arranged below the cover plate 601, and the cover plate 601 is driven to move up and down under the action of the floating ball 602. In order to ensure that the overflow cover 6 moves up and down, guide posts 104 are respectively arranged on opposite sides of the inner wall of the interceptor cavity 1, a bayonet 603 matched with the guide posts 104 is arranged on the cover plate 601, and the cover plate 601 moves up and down along the guide posts 104. To prevent the cover plate 601 from being detached from the guide post 104, the top of the guide post 104 is provided with a stop block 105, and the stop block 105 is preferably a stop nut.

The overflow cover 6 is provided with a filter plate 9, and the filter plate 9 is perpendicular to the water inlet direction. A connecting hinge 10, preferably a hinge, is provided between the bottom of the filter plate 9 and the cover plate 601, which allows the filter plate 9 to be turned around the bottom edge. When the cover plate 601 is in the lowest position of the trap chamber 1, the upper part of the filter plate 9 is above the inlet platform 2. Under the action of water inlet pressure, the filter plate 9 is turned over towards the water outlet direction, the filter plate 9 leans against the separation frame 103, rainwater and sewage enter one side of the filter plate 9 and flow into the interceptor cavity 1 after being filtered by the filter plate 9, and therefore the effect of blocking large-particle substances is achieved. When meeting heavy rain weather or having a large amount of rain sewage, when vacuum system did not come in time to aspirate, overflow lid 6 rose because of buoyancy reason this moment, because the effect of rivers, filter plate 9 emptys the pressure on vacuum well lid 8, and the large granule rubbish of remaining on overflow lid 6 can flow into municipal pipe network 4 through water platform 3 along with the rivers, reaches automatic desilting purpose. At the moment, as less rainwater and less sewage enter the interceptor cavity 1, the vacuum system has smaller operation load and cannot be in a long-term overload operation state, so that the operation stability and the service life of each part of the vacuum system can be well protected. When the water inflow is smaller than the processing capacity of the vacuum system, the water level in the interceptor cavity 1 is reduced, the overflow cover 6 is lowered, and rainwater and sewage enter the interceptor cavity 1 and are processed through a vacuum sewage pipe network.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.