CN2457405Y

CN2457405Y - Automatic exhaust valve for central heating

Info

Publication number: CN2457405Y
Application number: CN 00253280
Authority: CN
Inventors: 刘锴
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-29
Filing date: 2000-11-29
Publication date: 2001-10-31
Anticipated expiration: 2010-11-29

Abstract

The utility model belongs to the technical field of heating system fittings, which particularly relates to an improvement of an exhaust valve for a radiator. The exhaust valve for a radiator is composed of a valve body, a valve bonnet, a valve cap, and a float rod. The valve body is cylindrical, and a connecting projection connected with a radiator plug is arranged at the outside of the lower end. The valve bonnet is sheathed on the upper end of the valve body. An air outlet is processed at the middle of the valve bonnet. The valve cover is screwed on the upper end of the valve body. A circular hole is processed at the middle of the valve cover. A sealing ring is arranged at the middle of a concave hole on the lower part of the valve cover. A triangular ring groove of the sealing ring is matched with a triangular annular projection on the upper part of the float rod to control to exhaust. The utility model has the advantages of uniform pressure for boiler water supply, low pressure, and energy saving; heating users can not privately discharge water, and the users obtain the maximum heating benefits.

Description

A kind of heating installation automatic control pressure vent

The utility model belongs to heating system attachment technique field, specifically relates to a kind of improvement to the radiator drain tap.

For a long time, the outlet valve of installing on radiator (being commonly called as " leaking informaton ") is manual exhaust valve, when boiler during, to pressurize simultaneously circulating hot water is delivered in user's the radiator, because radiator is when stopping heat supply at Heating Cyclic water, drawdown, have a lot of air, need emit when last water, air valve like this will ferociously begin to rehearse, gas in the radiator is emitted, if it is just hot in time to emit radiator, if but this outlet valve is untimely closes, and water will flow to indoor; The user can also put hot water by outlet valve during heat supply, and circulating water hydraulic pressure is descended, and promptly wastes water and wastes energy, and influences the normal operation of heating system; Be to carry out in the system of sealing owing to this outlet valve makes circulating water in addition, the build-up of pressure inequality will strengthen pressure of supply water when adding water, waste energy.

Goal of the invention of the present utility model is to provide a kind of boiler water supply pressure that makes even, and pressure is lower, saves the energy, and the user that is heated can not discharge water privately, makes the user obtain be heated a kind of heating installation automatic control pressure vent of benefit of maximum.

The technical solution of the utility model is: be made up of valve body 8, bonnet 1, valve gap 4 and fly rod 5, valve body 8 is a cylindrical shape, the connection that is connected with the radiator plug protruding 9 is arranged in the outside of its lower end, on the excircle of connection protruding 9, be processed with screw thread, be processed with air outlet hole 10 in the centre that connects protruding 9 and communicate with valve body 8; Be with bonnet 1 in valve body 8 upper ends, be processed with air outlet hole A, be processed with screw thread in the inboard of valve body 8 upper ends in the centre of bonnet 1; It is protruding to have six sides in the middle of the valve gap 4, is processed with circular hole in the middle of valve gap 4, is processed with shrinkage pool in the lower end of circular hole; Seal ring 5 is installed in the middle of the shrinkage pool of valve gap 4 bottoms; Triangle annular groove (as shown in Figure 1) is arranged in the lower end surface of seal ring 5; The section on the top of fly rod 6 is a T-shaped, there is the triangle ring-type protruding in the above, the triangle annular groove of the protruding lower end surface with seal ring 5 of this ring-type matches, fly rod 6 bottoms are equipped with the hemisphere of intermediate hollow, the bar portion of fly rod 6 is inserted in seal ring 5 mesopores, be processed with screw thread on the excircle of valve gap 4, valve gap 4 passes through cushion rubber 11 spinnings on the screw thread of the inboard, upper end of valve body 8.The bar portion of fly rod 6 and the mesopore of seal ring 5 leave the gap.

The protruding mesopore of six sides at valve gap 4 is rotary with plug 2 by cushion rubber 3.

Good effect of the present utility model is:

1, when the water filling heat supply, zero-pressure in the heating installation forms water on the opening, makes boiler water supply hypotension, and the water time has been saved the energy in the shortening;

2, solved the problem that boiler circulating water does not run off, can not in heating installation, put hot water, guaranteed the equilibrium of heating pressure the heating period user;

Pressure inequality when 3, having alleviated boiler heat supplying makes the not excessive generation that causes the radiator explosion of reason hydraulic pressure of central heating plate;

4, be convenient to boiler heating unit the energy is carried out INDEX MANAGEMENT;

5, make the user under unmanned situation, can access maximum heat supply.

Fig. 1 is a structural representation of the present utility model;

Further narrate the utility model below in conjunction with drawings and Examples:

As shown in Figure 1, the utility model is made up of valve body 8, bonnet 1, valve gap 4 and fly rod 5, valve body 8 is a cylindrical shape, the connection that is connected with the radiator plug protruding 9 is arranged in the outside of its lower end, on the excircle of connection protruding 9, be processed with screw thread, in order to be installed on the plug of offering heating installation, to be processed with air outlet hole 10 in the centre that connects protruding 9 and to communicate with valve body 8 inside; Be with bonnet 1 in valve body 8 upper ends, be processed with air outlet hole A, be processed with screw thread in the inboard of valve body 8 upper ends in the centre of bonnet 1; It is protruding to have six sides in the middle of the valve gap 4, and protruding being convenient to of this six side installed, and is processed with circular hole in the middle of valve gap 4, is processed with shrinkage pool in the lower end of circular hole; Seal ring 5 is installed in the middle of the shrinkage pool of valve gap 4 bottoms; Triangle annular groove (as shown in Figure 1) is arranged in the lower end surface of seal ring 5; The section on the top of fly rod 6 is a T-shaped, there is the triangle ring-type protruding in the above, the triangle annular groove of the protruding lower end surface with seal ring 5 of this ring-type matches, fly rod 6 bottoms are equipped with the hemisphere of intermediate hollow, the bar portion of fly rod 6 is inserted in seal ring 5 mesopores, be processed with screw thread on the excircle of valve gap 4, valve gap 4 passes through cushion rubber 11 spinnings on the screw thread of the inboard, upper end of valve body 8.The bar portion of fly rod 6 and the mesopore of seal ring 5 leave the gap.

Working procedure of the present utility model is: when heating installation adds water, gas in the heating installation is in inlet hole 10 enters valve body 8, discharge in the mesopore of the intermediate seal circle 5 from valve gap 4 and the gap of fly rod 6, enter in the bonnet 1, the hole A from bonnet 1 discharges again, in the time of in water enters valve body 8, valve body is floated, the triangle annular groove of the protruding lower end surface with seal ring 5 of the ring-type triangle on the last fly rod matches by extremely, blocks the intermediate hole of seal ring, stops exhaust; Otherwise, drawdown in heating installation, fly rod descends, and the triangle annular groove of the protruding lower end surface with seal ring 5 of the ring-type triangle on the fly rod leaves, and makes pressure in the radiator with indoor identical.

Claims

1, a kind of heating installation automatic control pressure vent, form by valve body (8), bonnet (1), valve gap (4) and fly rod (5), described valve body (8) is a cylindrical shape, the connection that is connected with the radiator plug protruding (9) is arranged in the outside of its lower end, on the excircle that connects protruding (9), be processed with screw thread, be processed with inlet hole (10) in the centre that connects protruding (9) and communicate with valve body (8); Be with bonnet (1) in valve body (8) upper end, be processed with air outlet hole (A), be processed with screw thread in the inboard of valve body (8) upper end in the centre of bonnet (1); It is protruding to have six sides in the middle of the valve gap (4), is processed with circular hole in the middle of valve gap (4), is processed with screw thread on the excircle of valve gap (4), and valve gap (4), is characterized in that on the screw thread of the inboard, upper end of valve body (8) by cushion rubber (11) spinning:

Lower end at described valve gap (4) is processed with shrinkage pool, and seal ring (5) is installed in the middle of the shrinkage pool of valve gap (4) bottom; There is the triangle annular groove lower end surface at seal ring (5); The section on the top of fly rod (6) is a T-shaped, there is the triangle ring-type protruding in the above, the triangle annular groove of the protruding lower end surface with seal ring 5 of this ring-type matches, fly rod (6) bottom is equipped with the hemisphere of intermediate hollow, the bar portion of fly rod (6) is inserted in seal ring (5) mesopore, and the mesopore of the bar portion of fly rod (6) and seal ring (5) leaves the gap.

2, heating installation automatic control pressure vent according to claim 1 is characterized in that: the protruding mesopore of six sides at valve gap (4) is rotary with plug (2) by cushion rubber (3).