CN103291018A

CN103291018A - Desilting device for rainwater on roof

Info

Publication number: CN103291018A
Application number: CN2013102512936A
Authority: CN
Inventors: 胡再国
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2013-06-24
Filing date: 2013-06-24
Publication date: 2013-09-11
Anticipated expiration: 2033-06-24
Also published as: CN103291018B

Abstract

The invention discloses a desilting device for rainwater on a roof, and relates to the field of urban water drainage, in particular to the desilting aspect of the rainwater on the roof. The desilting device for the rainwater on the roof aims to reduce the risk of urban inland inundation caused by blocking of water draining pipelines. According to the technical scheme, the rainwater collected by the roof is injected into a vertical water draining pipe through a connecting pipe, an air draining hole is formed in the side face of the top of the vertical water draining pipe, a dustproof cover is fixed at the top of the vertical water draining pipe, the bottom of the vertical water draining pipe is connected with an elbow pipe, desilting holes are formed in the outer sides of the elbow positions of the elbow pipe and are through holes of the pipe wall of the elbow pipe, the elbow pipe is located inside a desilting pool, the top of the desilting pool is provided with an air draining pipe, and the opening end of the outer side of the air draining pipe is located at an inlet of a sewer. The desilting device has the advantages that the rainwater and silt keep the inertia of linear motion and are drained from the desilting holes; the specific weight of the silt is large, so that the silt subsides at the bottom of the desilting pool easily; the roof is very high, the water flow speed is high, the inertia is large, and the desilting effect is obvious; the desilting device is simple in structure and easy to implement.

Description

A kind of desilting device of roof rain water

Technical field

The present invention relates to the desilting aspect in urban sewerage and drainage field, particularly rain water on roof.

Background technology

In current city, particularly northern, sand and dust are bigger, airborne dust must be deposited in each corner in city, also comprise the roof, the silt that the rainwater on roof is being mingled with will enter drainage pipe, and part silt can be deposited in the drainage pipe, the risk that the line clogging of causing is arranged, the obstruction of drainage pipe just has the risk that causes the city waterlogging.

And generally smaller to the particle of the dust on roof by wind, if sewer has foreign material, tiny dust granule is dense, the intensity of foreign material and the compactness of fine dust, the easier obstruction that causes storm sewer.

Summary of the invention

Stop up the risk that causes the city waterlogging for reducing drainage pipe, the present invention designs a kind of desilting device of roof rain water.

The present invention realizes that the technical scheme that goal of the invention adopts is: a kind of desilting device of roof rain water, it is characterized in that: the rainwater that roofing is collected is injected in the vertical drainage pipe by tube connector, there is steam vent the side at vertical drainage pipe top, a dust cap is fixed at the top of vertical drainage pipe, the bottom of vertical drainage pipeline connects a bend pipe, there is the husky hole of row in the outside in the knee of bend pipe, arrange the through hole that husky hole is the bend pipe tube wall, bent tube section is in the inside of sand trap, a stack is arranged at the top of sand trap, and the outer openings end of stack is positioned at the entrance of sewer.

Bend pipe adopts helix tube to replace, and there is the husky hole of row in the outside of helix tube.The diameter of arranging husky hole is 1-3cm.

The invention has the beneficial effects as follows: object has the straight-line inertia of maintenance, and the rainwater of storm sewer is flowing through the pipe bent position of storm sewer, and rainwater and silt can keep inertia, go out from arranging husky hole; In sand trap, the speed of current is close to zero, the moisture of sand trap, and a part is back in the bend pipe by arranging husky hole, and a part is discharged to sewer by the stack of sand trap; From arranging the silt that husky hole is rushed out, owing to than great, be easy to be deposited in the bottom of sand trap, the part that is back to bend pipe or stack is less; Because roofing is than higher, the flow velocity of water is big, and inertia is big, and the desilting effect is remarkable, and this apparatus structure is simple, and is easy to implement.

Description of drawings

Fig. 1 is the drainage pipe schematic diagram of rain water on roof; Fig. 2 is improved bend pipe schematic diagram; Fig. 3 is the sand trap schematic diagram; Fig. 4 is the location diagram of storm sewer and sand trap.

Wherein, 1, roofing, 2, tube connector, 3, dust cap, 4, steam vent, 5, the vertical drainage pipe, 6, bend pipe, 7, arrange husky hole, 8, helix tube, 9, sand trap, 10, stack.

The specific embodiment

The rainwater of roofing 1 is injected in the vertical drainage pipe 5 by tube connector 2, air in the vertical drainage pipe 5 can form a kind of retardation to draining, have influence on the speed of current, therefore, the open top of vertical drainage pipe 5, openend is vertically arranged several supports, form steam vent 4 between the support, a dust cap 3 is fixed on the top of support, dust cap 3 reduces silt and foreign material enter vertical drainage pipeline 5, the bottom of vertical drainage pipeline 5 connects a bend pipe 6, there is the husky hole 7 of row in the outside in the knee of bend pipe 6, arrange husky hole 7 and be the through hole of bend pipe tube wall, bend pipe 7 can adopt helix tube 8 to replace, there is through hole in the outside of helix tube 8, namely arrange husky hole 7, bend pipe 6 parts are in the inside of sand trap 9, a stack 10 is arranged at the top of sand trap 9, silt and rainwater enter sand trap 9 from arranging husky hole 7, and the water level of sand trap 9 rises, and squeezes the air in the sand trap, the air that squeezes is discharged from stack 10, water level rises to the top of stack 10 simultaneously, and stack 10 also just becomes water pipe, so the openend of stack is positioned at the entrance of sewer.

Claims

1. the desilting device of a roof rain water, it is characterized in that: the rainwater that roofing (1) is collected is injected in the vertical drainage pipe (5) by tube connector (2), there is steam vent (4) side at vertical drainage pipe (5) top, a dust cap (3) is fixed at the top of vertical drainage pipe (5), the bottom of vertical drainage pipeline (5) connects a bend pipe (6), there is row husky hole (7) in the outside in the knee of bend pipe (6), arrange husky hole (7) and be the through hole of bend pipe tube wall, bend pipe (6) part is in the inside of sand trap (9), a stack (10) is arranged at the top of sand trap (9), and the outer openings end of stack is positioned at the entrance of sewer.

2. the desilting device of a kind of roof rain water according to claim 1 is characterized in that: bend pipe (7) adopts helix tube (8) to replace, and there is row husky hole (7) in the outside of helix tube (8).

3. the desilting device of a kind of roof rain water according to claim 1 and 2, it is characterized in that: the diameter of arranging husky hole (7) is 1-3cm.