CN2351686Y

CN2351686Y - Automatic exhausting valve for heating system

Info

Publication number: CN2351686Y
Application number: CN 97248749
Authority: CN
Inventors: 祝建东
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-10
Filing date: 1997-12-10
Publication date: 1999-12-01
Anticipated expiration: 2007-12-10

Abstract

The utility model relates to an automatic exhaust valve for a heating system. The utility model comprises a valve body, a float, a thimble, an inlet valve seat, an exhaust valve seat, a sealing gasket, and a guide needle. When the inner part of the heating system is filled with air in the process of heating, the automatic exhaust valve can cause the air to be exhausted quickly. After the air is exhausted, the exhaust valve can be closed automatically to prevent liquids from overflowing. When the heating is stopped, the inlet valve can be closed automatically to prevent the air from entering the heating system.

Description

The heating installation automatic exhaust steam valve

The utility model relates to a kind of heating installation automatic exhaust steam valve.

At present, in the hot-water heating heating system, in order to solve the problem that can not reach the heating effect because of " vapour lock " very soon, mostly at single radiator by adorning an artificial air bleeding valve.Because during each artificial exhaust, being difficult to grasp in the radiator has gas not have gas, often water is emitted and overflows to ground; Sometimes in order to make the very fast heating in room, only when every morning, 6,7 o'clock began air feed, the exhaust of getting up earlier continued to have a rest again, makes the people feel very inconvenient.

The purpose of this utility model is for a kind of heating installation automatic exhaust steam valve is provided, and it can make when in the heating installation bag air being arranged gas is discharged, and closes air bleeding valve when having arranged gas automatically, prevents that liquid from overflowing.

In order to achieve the above object, the utility model comprises valve body, valve gap, float, thimble, inlet valve seat, delivery valve seat; Float is the hollow Cylinder of a sealing, thimble is fixed on float central authorities, the thimble two ends are equipped with sealing rubber pad and are with tapered inlet valve seat or delivery valve seat and are sealed and matched, the guide pin at thimble two ends inserts in the inlet and outlet valve seat, the restriction float direction of motion, prevent that float is stuck in valve body, float can move by easy on and off in valve body, and each work can only be closed a valve seat.

Below in conjunction with accompanying drawing and example the utility model is further specified, wherein:

Fig. 1 is an outside drawing of the present utility model;

Fig. 2 is that 1 A-A is to cutaway view.

See among Fig. 1,2, sealing ring (12) is housed between valve body (1) and valve gap (2) forms valve pocket with fixed bolt (5), float (3) is housed in it, be fixed with thimble (4) on the float (3), the rubber blanket at thimble two ends (10) is with inlet valve seat (6) or delivery valve seat (7) and is sealed and matched, guide pin (11) is inserted into the direction of motion that limits float in the inlet and outlet valve seat, and valve body is connected with radiator (not marking among the figure) with intake interface (9) with tube connector (8).When automatic exhaust steam valve was not worked, the thimble lower end was closed condition at the gravity effect lower inlet valve of float, and air bleeding valve is open state; When the gas in the radiator when intake valve enters valve body because intake valve is backed down in the effect of air pressure, gas is discharged from air bleeding valve; Gas in radiator has been arranged liquid and has been entered valve body, and float begins to rise, and when liquid was higher than the height of design, it is up that float drives thimble, closes air bleeding valve under the buoyancy of float, stops exhaust, and stops liquid to overflow.The liquid that hydraulic pressure reduces in the valve body after stopping to heat flows back in the radiator, and liquid level descends, and float drives the descending intake valve of cutting out of thimble, stops air to enter in the radiator.If hydraulic pressure is during still greater than normal pressure, automatic exhaust steam valve still keeps the exhaust valve closure state, also can stop air to flow in the radiator.So periodic duty reaches the automatic vent function.

The utility model can be according to user's needs, and the varying sized small-sized automatic exhaust steam valve that produces single radiator also can manufacture the large-scale automatic exhaust steam valve of a heating system.

Claims

A kind of heating installation automatic exhaust steam valve contains valve body, valve gap, float, thimble, inlet and outlet valve seat; It is characterized in that float is the hollow cylinder of a sealing, thimble is fixed on float central authorities, and the thimble two ends are equipped with sealing rubber pad and inlet valve seat or delivery valve seat and are and are sealed and matched; The guide pin at thimble two ends inserts in the intake and exhaust valve seat, and the restriction float direction of motion prevents that float is stuck in valve body; Open inlet valve seat when float is up and carry out exhaust, air has been arranged liquid and has been entered the valve body float and rise and to close air bleeding valve automatically, stops liquid spill; The descending intake valve of cutting out of float stops air to enter heating system, reaches the automatic vent function.