CN2043729U

CN2043729U - Automatic exhaust valve sealed with ball

Info

Publication number: CN2043729U
Application number: CN 88221594
Authority: CN
Inventors: 王泽云
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-12-29
Filing date: 1988-12-29
Publication date: 1989-08-30

Abstract

The utility model relates to an automatic exhaust steam valve used for a radiator pipeline, which is mainly composed of a valve body, a valve cover and a floating ball. The valve body is provided with a water inlet, an air inlet and a sewage draining outlet. The valve cover is provided with an air exhausting hole, and the floating ball is made of glass fiber reinforced plastic. The utility model has the advantages of easy fabrication, long service life, simple structure, material saving, good air exhausting performance and not easy damage and thus the air exhausting work and the water draining work of the radiator pipe network can be normally operated.

Description

Automatic exhaust valve sealed with ball

The utility model belongs to the air bleeding valve of using on a kind of heating pipeline.

For the cold air of getting rid of automatically in the heating pipeline reaches the purpose that the user warms oneself, and produce negative pressure in the caliduct when preventing to cut off the water supply and cause vibration and fracture, the horizontal exhaust valves that adopt in the present domestic winter heating pipeline more, this air bleeding valve volume is big, complex structure, and valve seat processes with brass, steam vent is thin and path is long, easily stop up when aqueous medium is sewage, cursory in addition lever and valve seat junction Chang Yin are got rusty by aqueous corrosion and are malfunctioning, lose automatic control exhaust capacity; Domestic also have a kind of air inlet and exhaust valve, and a ball bowl is arranged in the valve body, and ball float is in bowl, around the ball bowl 4 ventilating openings are arranged, also be provided with two intake and exhaust apertures of size, total is quite complicated, therefore complex production process, cost height are unfavorable for that production unit production and user use.

The purpose of this utility model is the structure of original automatic vent sealing valve and ball float material are improved, make that it is simple in structure, economical with materials, be convenient to produce, easy to use, improve exhaust velocity, prolong service life of ball float, reach the purpose of fast automatic exhaust.

Design feature of the present utility model is mainly to be made up of valve body and ball float, is provided with a sewage draining exit (8) in the middle of the bottom of valve body (5), and side of valve body is near 8～12mm place, bottom welding air inlet water inlet (7); Valve gap is made up of the ring flange (4) and the end cap (2) that are welded on valve body (5) upper end, and therebetween one is subjected to ball pad (3), uses several bolts (1) and nut (10) fixing on every side, a weldering exhaust outlet (9) in the middle of valve gap; Ball float (6) is made with fiberglass, is open-core type, and diameter is greater than exhaust outlet (9) and sewage draining exit (8); Made by rubber heat-resisting, good springiness by ball pad (3), be subjected to ball holder mouth place that a step is arranged, step has certain gradient inwards, is subjected to that ball holder mouth communicates with steam vent (9), diameter is identical.

The automatic exhaust steam valve of the utility model structure, have good exhaust sealing performance, exhaust velocity is fast, and ball float is not fragile, long service life, and because simple in structure, economical with materials is convenient to produce and use, be a kind of desirable automatic vent sealing valve.

Fig. 1: be automatic vent water stop valve structure schematic diagram

Valve body (5) is made by ratio-frequency welded tube, sewage draining exit (8), air inlet, water inlet (7), exhaust outlet (9) all are welded on the valve body with ratio-frequency welded tube, exhaust outlet (9) is welded in the circular hole place, middle part of valve gap, sewage draining exit (8) is welded in the circular hole place of middle part, valve body (5) bottom, and air inlet, inlet opening (7) are welded in 8～12mm place, span bottom outside valve body (5) side; Ball float (6) ball core is hollow ball, ball external application glass wool cloth parcel, and then with resin, coating press forming; Floating ball diameter is 76～78mm greater than steam vent (9) and sewage draining exit (8), and pressure reaches as high as 8 gauge pressures.The proportion of water and ball is 1:0.75～0.8, can be up under 95 ℃ the situation in water temperature normally to use; Valve gap is made up of the ring flange (4) and the end cap (2) that are welded on the valve body (5), is subjected to ball pad (3) at ring flange and end cap therebetween, uses bolt (1) and nut (10) fixing then.

Fig. 2: for being subjected to ball pad schematic diagram

Made with rubber heat-resisting, good springiness by ball pad (3), communicated with steam vent (9) by the middle ball mouth that is subjected to of ball pad, diameter is identical, and what be subjected to the ball mouth is subjected to the position, bulb that certain gradient is arranged inwards so that guarantee on the ball float sealing when being subjected to the ball mouth.

Fig. 3: be the structural representation of ball float (6)

Air inlet, water inlet (7) air inlet and the water inlet of the utility model from Fig. 1, in gas entered valve, the steam vent of (9) was discharged from Fig. 1.Ball float is in the bottom of valve during air inlet, gas emptying in heating installation bag and heating pipeline, aqueous medium flows in the valve, and along with water level in the valve rises, ball float is under the impact of current, pressure effect, rotation, floating in valve, under the buoyancy of water effect, slowly rise, rise to when contacted by ball pad annular holder mouth, seal steam vent immediately, stop exhaust, water also overflows and does not go out.If the heating pipeline when normal generation gas in service, because gas light-water matter is heavy, when gas rises when entering in the valve body gradually, forces under the pressure effect of gas in valve that water level descends in the valve, the ball float exhaust outlet that thereupon descends opens wide, and gas is discharged.

The utility model is simple in structure, saves former material, is convenient to produce, and drainage performance is good, produces gas at any time, discharge at any time, and be a kind of desirable automatic exhaust steam valve.

Claims

1, the automatic exhaust steam valve used of a kind of heating pipeline is made up of valve body, valve gap, ball float etc., it is characterized in that the middle part, bottom of valve body (5) is provided with a sewage draining exit (8), and side of valve body is leaned on into place, bottom welding one air inlet, water inlet (7).

2, automatic exhaust steam valve according to claim 1, it is characterized in that valve gap is made up of the ring flange (4) and the end cap (2) that are welded on valve body (5) upper end, therebetween one is subjected to ball pad (3), uses bolting on every side, establishes an exhaust outlet (9) in the valve gap middle part.

3, automatic exhaust steam valve according to claim 1 is characterized in that ball float (6) made by fiberglass, is round open-core type, and diameter is greater than exhaust outlet (9) and sewage draining exit (8).

4, automatic exhaust steam valve according to claim 2, it is characterized in that being subjected to ball pad (3) to make by rubber heat-resisting, good springiness, be subjected to ball holder mouth place that a step is arranged, step has certain gradient inwards, is subjected to that ball holder mouth communicates with exhaust outlet (9) on the end cap (2), diameter is identical.