CN2166281Y

CN2166281Y - Automatic air outlet valve

Info

Publication number: CN2166281Y
Application number: CN 93227717
Authority: CN
Inventors: 吴宏元
Original assignee: Shenyang Institute of Aeronautical Engineering
Current assignee: Shenyang Institute of Aeronautical Engineering
Priority date: 1993-03-29
Filing date: 1993-03-29
Publication date: 1994-05-25
Anticipated expiration: 2003-03-29

Abstract

The utility model discloses an automatic air discharge valve used for a hydraulic container, which is a device for discharging the excess air in hot water heating equipment. The utilization ratio of a container and a hot water heating pipe can be effectively improved, and the utility model can automatically, accurately, and timely discharge the excess air, also has the return stopping function, and can prevent that the person discharges the liquid. The utility model has the advantages of balanced operation, simple structure, easy fabrication, low cost, and long service life.

Description

Automatic air outlet valve

The utility model is the unnecessary gas purging device that is applied in hydraulic container, the hot-water heating equipment.

Existing venting gas appliance is mainly the artificial outlet valve of plug screw formula, this exhaust mode is difficult to realize accurately, exhaust requirements timely, causes the radiator temperature rise time to prolong, and artificial on the other hand outlet valve is arbitrarily opened easily, the artificial hot water of releasing makes the whole heating system inequality of being heated.

It is little to the purpose of this invention is to provide a kind of volume, simple in structure, have automatically, accurately, in time, exhaust is fast, air-flow is slow, the promptly safe automatic control pressure vent that check function is arranged again.

For reaching this purpose, automatic control pressure vent adopted by housing (1), loam cake (6), buoyancy aid (2), exhaust core (4) and backing plate (7) combine its inside is had about the constructional device of two cavitys.One access port is arranged at bottom, chamber, a left side is gas-liquid shunting chamber, and right chamber is for placing the exhaust cavity of buoyancy aid and exhaust core.About two chamber upper airway communicate with the bottom water channel.Gas-liquid at first enters the left chamber of housing during use, utilizes gas-liquid proportion difference to separate shunting in this chamber, and gas carries out exhaust from the upper airway right chamber of flowing over, and is equally distributed porous exhaust structure because loam cake adopts, makes that exhaust velocity is fast, air-flow slow.When exhaust finishes, big quantity of fluid enters in the valve, can only enter right chamber from the bottom water channel, buoyancy aid makes the exhaust core on its top close under buoyancy function, the non-return rubber seal that installs on the exhaust core stops ambient air to flow backwards, because each exhaust buoyancy aid only moves once, and gas-liquid directly do not impact buoyancy aid, so the outlet valve stable working.

Advantage of the present invention is that automatic control pressure vent can improve container and usage ratio of equipment, can prevent the artificial liquid of releasing, and simple in structure, and installation and processing is convenient, and is with low cost, stable working, long service life.

Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.

Fig. 1 is the schematic diagram of automatic control pressure vent, is made up of housing (1), buoyancy aid (2), seal ring (3), exhaust core (4), sealing gasket (5), loam cake (6), backing plate (7), non-return pad (8), dividing plate (9).

Automatic control pressure vent is combined by housing (1) and loam cake (6), exhaust core (4), buoyancy aid (2) as shown in Figure 1.Have a sealing gasket (5) to make cavity airtight in the middle of housing (1) and the loam cake (6), a thin wall barrier (9) is arranged in the housing (1) and form two cavitys, housing (1) and dividing plate (9) can be one, also can process separately.The upper airway of two cavitys communicates with the bottom water channel, chamber, a left side is gas-liquid shunting chamber, it is the gas-liquid flow inlet that cavity bottom has an access port, right chamber is an exhaust cavity, place buoyancy aid (2) in the chamber, buoyancy aid (2) lower end is that the bottom surface of a plurality of flute profiles is so that liquid flows into, buoyancy aid (2) is connected as a single entity with exhaust core (4), rely on the buoyancy and the deadweight of buoyancy aid (2) to move up and down, realize the switching of air flue, the non-return pad (8) that has cooperation of taper air flue and exhaust core (4) and support exhaust core (4) upper end on the backing plate (7) in the loam cake (6) makes it the location.Prevent that ambient air from flowing backwards.There is seal ring (3) to make the airtight air flue of air flue sealing playing a part on one fixed position of exhaust core (4) lower end when flow of liquid is fashionable.Whole valve body is an assembly parts, also can adopt overall structure.All parts of valve are that available metallic material also can adopt nonmetallic material.

The course of action that with the radiator is the example automatic control pressure vent is as follows:

After gas enters valve body, by left chamber with the water separation in the gas after, a large amount of gases flow into right chamber from upper airway, air flue from exhaust core (4) passes through then, jack-up non-return pad (8) is discharged from the uniform hole of loam cake (6), when exhaust finishes, water enters in the housing (1) in a large number, water flows into right chamber by left chamber through the bottom water channel, makes buoyancy aid (2) come-up, and buoyancy aid (2) come-up rises the exhaust core (4) that is installed on the buoyancy aid (2) air flue is blocked, and finish airtight after the exhaust, when in the valve when anhydrous, buoyancy aid (2) is descended by deadweight, makes the airway unobstructed of exhaust core (4).For next exhaust is prepared, simultaneously non-return pad (8) is closed air flue is unidirectional, prevent in the ambient air refluence valve with radiator in, finish an exhaust.

Claims

1, a kind of automatic control pressure vent, it is characterized in that by housing (1), loam cake (6), buoyancy aid (2), exhaust core (4) and backing plate (7) formed its inside is had about the constructional device of two cavitys.

2, automatic control pressure vent according to claim 1 is characterized in that an access port is arranged at the bottom, left chamber of housing (1), places buoyancy aid (2) in the right chamber, and dividing plate (9) is arranged between the chamber, the left and right sides.

3, automatic control pressure vent according to claim 1 is characterized in that loam cake (6) K to equally distributed porous air outlet flue is arranged, and backing plate (7) has the taper air outlet flue and matches with exhaust core (4).

4, automatic control pressure vent according to claim 1 is characterized in that there is a non-return pad (8) exhaust core (4) upper end, has a seal ring (3) on the fixed position of lower end.