CN102943523A - Negative-pressure sewage conduit system - Google Patents

Abstract

The invention provides a negative-pressure sewage conduit system. The conventional sewage conduit system has the following disadvantages under meteorological conditions of high humidity and low air pressure: large amounts of smelly air bubbles are raised up from a sludge layer under a septic tank and an inspection well of a sewage system to overflow from gaps of a septic tank cover and an inspection well cover, at which time people usually smell the foul odor in the air, so a living environment of people is polluted. The negative-pressure sewage conduit system provided by the invention prevents the smelly gas from polluting the living environment of people, and is characterized in that a vertical air exhaust pipe is connected to the sewage conduit, the inspection well and the septic tank near an external wall of a building or other buildings, and the vertical air exhaust pipe is 2 or 3 meters higher than a roof and is provided with a windproof cap above. The windproof cap is capable of exhausting gas from the air exhaust pipe under the condition of any wind direction, so the smelly gas is continuously exhausted through the cap to spread in upper air. A micro negative pressure status is kept in a gas phase of the sewage system all the time, so the smelly gas does not from the gap of the inspection well cover and the living environment of people is improved.

Description

The suction type sewer system

Affiliated technical field

The present invention relates to a kind of suction type sewer system; work as under the low meteorological condition of high humidity air pressure in sewer system in residential quarter, school, the various public place at present; have in the sludge blanket under septic tank in the foul sewer system, the inspection shaft a large amount of foul smell bubbles general on; spill in the air from the slit of septic tank lid and inspection well cover; thereby this time people just usually can be smelt serious foul odour is arranged in the air, polluted people's living environment.The present invention does not make this kind foul smell spill in the beneath air layer of people's life, it is discharged in the above atmosphere in roof disperses, thereby improve people's living environment.

Background technology

Known, sewer system is not suction type at present.Thereby at high humidity, under the low meteorology of air pressure, the foul odour on general in the beneath mud in the sewer system overflows from the slit of septic tank lid and inspection well cover etc., has worsened the air ambient that people live.

Summary of the invention

Not suction type in order to improve present sewer system, under the low meteorological condition of high humidity, air pressure, foul gas on general in the mud under the sewer system, overflow everywhere from the slit of septic tank lid and inspection well cover etc., worsen the deficiency of the air ambient of people's life, the present invention releases a kind of suction type sewer system, and this kind foul smell is spilt in the air layer of people's life, it is discharged in the above atmosphere in roof disperses, thereby improve people's living environment.

The technical solution adopted for the present invention to solve the technical problems is: the suction type sewer system that is comprised of sewage conduct, inspection shaft, septic tank etc., at the sewage conduct near building or other skin place, nearby along exterior wall connect vertical exhaust duct to exceed roof 2, the wind blast cap of locating to set up defences more than 3 meters.Because windproof blast cap can be in the situation that any wind direction be extracted the gas in the airduct out.Like this, the foul smell that rolls up in the sludge blanket under the foul sewer system just continuously from blast cap pump drainage go out, will keep all the time a micro-vacuum state in the foul sewer system gas phase, foul smell just can not overflow from the slit of septic tank lid and inspection well cover etc., has improved people's living environment.

The invention has the beneficial effects as follows, only increased a simple facility and just improved greatly people's living environment.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is schematic diagram of the present invention.

1. windproof blast caps among the figure, 2. vertical airduct, 3. building, 4. sludge blanket, the 5. slit of septic tank lid, 6. sewage conduct, 7. septic tank, 8. inspection shaft, 9. bubble.

Specific implementation method

In Fig. 1, near building (3) or other skin place, locate with the sewage conduct (6) that septic tank (7) and inspection shaft (8) communicate, establish vertical airduct (2) along building (3) or other skin, push up the wind blast cap (1) of locating to set up defences more than 2,3 meters to exceeding building or this building.Because windproof blast cap can be in the situation that any wind direction be extracted the gas in the airduct out.Like this, the bubble (9) that sludge blanket (4) forms under the septic tank (7), roll up the foul smell of rear aggregation in septic tank (7) gas phase just continuously from blast cap pump drainage go out.Make septic tank (7) gas phase keep all the time a micro-vacuum state, foul smell just can not spill in the bottom air layer of people's life from the slit (5) of septic tank lid and the slit of inspection shaft (8) lid, has improved people's living environment.

Claims (1)

1. suction type sewer system that is formed by sewage conduct, inspection shaft, septic tank etc., it is characterized in that, near the sewage conduct place at building or other skin place nearby along its exterior wall connect vertical exhaust duct to exceed roof 2, the wind blast cap of setting up defences more than 3 meters.

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