CN2193395Y

CN2193395Y - Common exhaust pipeline fume back-proof device for grand building

Info

Publication number: CN2193395Y
Application number: CN 94200748
Authority: CN
Inventors: 林润泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-20
Filing date: 1994-01-20
Publication date: 1995-03-29
Anticipated expiration: 2004-01-20

Abstract

The utility model relates to a common exhaust pipeline fume back-proof device for grand buildings, which is composed of a main pipeline wall jet pipe and a heavy hammer type unidirectional back valve, wherein, an opening of the jet pipe is upward and is arranged on the main pipeline wall. The heavy hammer type unidirectional back valve is positioned in the jet pipe and is arranged in an air inlet of the main pipeline wall. The utility model has the advantages of simple structure and convenient construction, and effectively prevents the taste and fume back problem of common exhaust pipelines in grand buildings.

Description

Common exhaust pipeline fume back-proof device for grand building

The utility model relates to a kind of anti-device of collaborating, and is applicable to the ventilation system in kitchen, washroom, the Room and the room of high-rise building.

At present, in the high-rise building common exhaust duct system, operation condition is many typhoons machine (as oil-containing air exhauster for kitchen, toilet ventilation machine and the Room, room ventilation ventilating machinary) parallel running, and vertical extract duct is adopted in the kitchen of building, i.e. the shared exhaust duct in the kitchen of several layers, and its problem that mainly exists is: one, the extract duct internal construction is unreasonable, resistance is excessive, although the operation of exhaust machinery full load, dusty gas still is difficult for discharging, and contaminant removal effectiveness is low.Two, operating blower fan interferes with each other, and the taint of odour of collaborating mutually of the common exhaust duct that passes through to communicate with each other between the upper and lower floor has influenced the whole functional performance of exhaust system.

The purpose of this utility model is to design a kind of suitable flow area that has, and has the anti-device of collaborating of high-rise building common exhaust duct that jet pipe adopts the unidirectional non retern valve structure of Weight type, can improve the discharge effect of building dusty gas, and the upper and lower floor that prevents high-rise building effectively is by collaborate the mutually problem of (smoke blowing, taint of odour) of common exhaust duct.

The purpose of this utility model is achieved in that

The utility model is made up of duct wall jet pipe and the unidirectional non retern valve of Weight type, and the jet pipe opening upwards is installed on the trunk line wall, and the unidirectional non retern valve of Weight type is positioned at jet pipe, is installed in the air inlet port on the trunk line wall.

When exhaust blower in pipeline during exhaust, the pressure of gas is opened the unidirectional reverse stop valve of Weight type, the gas of discharge enters within the trunk line smoothly by jet pipe, the general export by the top layer pipeline drains into atmosphere then.Because the suction function that the jet of jet pipe produces does not seal in downwards in the lower floor room and goes.The valve of the unidirectional non retern valve of Weight type is closed automatically when not exhaust of exhaust blower, and the gas of so just having avoided lower floor's room air draft machinery to discharge seals in the room, upper strata by shared exhaust trunk line.Thereby reached anti-purpose of collaborating.

The utility model can improve the decontaminate efficient of gas of building common exhaust duct effectively, improve IAQ (indoor air quality), prevent that effectively each floor room in the building note common exhaust duct system is by collaborate the mutually problem of (smoke blowing, taint of odour) of this pipeline, thereby obtain good exhaust effect, and have simple in structure, characteristics easy to implement, easy for installation are applicable to building, particularly high-rise building common exhaust duct system.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is installation site of the present utility model.

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

Fig. 3 is that the B-B of Fig. 2 is to sectional view.

Fig. 4 is the sectional view of the unidirectional non retern valve of Weight type.

Fig. 5 is for when the exhausting stub tube of exhaust blower when being square, the square interface schematic diagram of valve body and exhausting stub tube.

When Fig. 6 is circular for the exhausting stub tube when exhaust blower, the circular interface schematic diagram of valve body and exhausting stub tube.

Fig. 7 is the structure chart of jet pipe.

Fig. 8, Fig. 9 are fundamental diagram of the present utility model.

Figure 10 is the scheme of installation of the utility model in the high-rise building pipe-line system.

Among the figure: 1, trunk line, 2, the trunk line wall, 3, jet pipe, 4, the unidirectional non retern valve of Weight type, 5, air inlet port, 6, valve, 7, weight, 8, retainer ring, 9, square installs exhaust blower short tube interface, 10, the trunk line interface is installed, 11, valve body, 12, the jet pipe port, 13, flange, 14, outage, 15, installing hole, 16, the interface of circular mounting exhaust blower short tube, 17, the total air exit of top layer.

See Fig. 7, port one 2 directions of jet pipe 3 make progress, and there are flange 13 in its both sides and bottom, and flange 13 has bolt hole 15, and the lower end of jet pipe 3 is streamlined and an outage 14 is arranged, and makes liquid pass through this outage 14 and discharges smoothly.

See Fig. 4, the unidirectional non retern valve 4 of Weight type, by valve body 11, valve 6, weight 7 is formed, there is a square that trunk line interface 10 is installed in the middle of valve body 11 outer walls, one end of valve body 11 outer walls is provided with a square installation exhaust blower short tube interface 9(less than square installation trunk line interface 10 and sees Fig. 5), respectively there is an erection loop 8 on the both sides, other end bottom of valve body 11, the both sides, bottom of valve 6 respectively have an axle to be through respectively in two erection loops 8 of valve body 11 bottoms, make valve 6 and valve body 11 hinged, be welded with a weight 7 on the valve 6.The center of gravity of valve 6 and weight 7 no matter valve 6 is in the both sides of pin joint all the time in what position, and the gravitational moment of 7 pairs of pin joints of weight is forever greater than the gravitational moment of 6 pairs of pin joints of valve.

See Fig. 6, when the exhaust blower short tube was circle, square installation exhaust blower short tube interface 9 can be made circular mounting exhaust blower short tube interface 16.

See Fig. 1-3, jet pipe 3 is fastened on the trunk line wall 2 by the bolt hole on the jet pipe flange 13 15, and the direction of jet pipe port one 2 is made progress.Consistent to guarantee the exhaust airstream flow direction and trunk line, air flow direction, the unidirectional non retern valve 4 of Weight type is installed within the jet pipe 3, is fixed in the air inlet port 5 of person in charge's wall 2 lateral openings.

See Fig. 8, Fig. 9, the pressure of (see figure 8) discharge gas is opened the valve 6 of Weight type non retern valve 4 after exhaust blower starts, discharge gas and enter jet pipe 3 by valve body 11, form jet and enter in the trunk line 1, air-flow is equidirectional in trunk line 1 drains into atmosphere by the total outlet opening 17 of top layer after converging for jet.

See Figure 10, (see figure 9) when the air draft machinery of certain floor is not worked, the valve 6 of the unidirectional non retern valve 4 of Weight type automatically resets under the gravitational moment effect of weight 7, and the unidirectional non retern valve 4 of Weight type is closed, and stops that gas can not pass through valve body 11 in the trunk line 1.

Claims

1, the anti-device of collaborating of a kind of high-rise building common exhaust duct, it is characterized in that: this device is made up of trunk line wall jet pipe and the unidirectional non retern valve of Weight type, the jet pipe opening upwards is installed on the trunk line wall, the unidirectional non retern valve of Weight type is positioned at jet pipe, is installed in the air inlet port of trunk line wall.

2, the anti-device of collaborating of high-rise building common exhaust duct as claimed in claim 1, it is characterized in that: the port direction of jet pipe makes progress, and there are flange in its both sides and bottom, and bolt hole is arranged on the flange, and the lower end of jet pipe is streamlined and an outage is arranged.

3, the anti-device of collaborating of high-rise building common exhaust duct as claimed in claim 1, it is characterized in that: the unidirectional non retern valve of Weight type is made up of valve body, valve, weight, the centre of valve outer wall has a square that the trunk line interface is installed, one end of valve outer wall is provided with a square installation exhaust blower short tube interface less than square installation trunk line interface, respectively there is an erection loop on the both sides, other end bottom of valve body, the both sides, bottom of valve respectively have an axle to be through respectively in two erection loops of valve body lower portion, make valve and valve body hinged, be welded with a weight on the valve.The center of gravity of valve and weight no matter valve is in the both sides of pin joint all the time in what position, weight to the gravitational moment of pin joint forever greater than the gravitational moment of valve to pin joint.