CN88210460U

CN88210460U - Horizontal automatic valve for venting

Info

Publication number: CN88210460U
Application number: CN 88210460
Authority: CN
Inventors: 郑贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-23
Filing date: 1988-04-23
Publication date: 1988-12-21

Abstract

The utility model discloses an improved automatic horizontal exhaust valve, which is suitable for an industry and a civil architecture heating systems and an air-conditioning freezing water system. The operating pressure of the improved automatic horizontal exhaust valve is 0-0.78 mpa, and the hot coal is from 95-70 DEG to 150-90 DEG. The improved automatic horizontal exhaust valve adopts that a circular tube is welded into a housing, and the utility model has the advantages of small size and light weight. A valve seat is fixed onto the housing through a sealing gasket and a screw nut; the external periphery of the valve seat is arranged with threads at the exposed housing portion; a flotation which is connected with a level is fixed with a double-pin; the swinging movement of the flotation generated by the impact of the water pressure can be avoided, and the air discharging effect can be improved. The improved automatic horizontal exhaust valve can be simultaneously used in a high-rise building and the low-rise building with the same heat supply network; the improved automatic horizontal exhaust valve can proceed the normal work, and the heating and the air discharging requirement of the high-temperature parameters can be satisfied.

Description

Horizontal automatic valve for venting

The utility model provides a kind of improved horizontal automatic control pressure vent, and it is applicable to industry and civil building heating system and air conditioning water system.The working pressure of this valve is 0～0.78MPa, and hot coal is 95～70 ℃ to 150～90 ℃.

Be widely used in the industry and all kinds of automatic control pressure vents of civil building heating system at present, be only applicable to system pressure≤0.39MPa, hot coal is subjected to the restriction of its structure at 95～70 ℃ heating system, does not adapt to the needs that modern high-rise building develops.The present inventor designs a kind of horizontal automatic control pressure vent according to heating system long, the shortcomings such as service behaviour that can't judge valve of water-filling period of exhaust first.Although this outlet valve has overcome above-mentioned shortcoming, make outlet valve can be in system proper functioning, but,, open big window for increasing daylighting area because existing tall building stipulates that every layer height is not more than 2.8 meters, so interior surface of roof is less to the distance between the window top, existing outlet valve adopts aluminium alloy casting, cost height not only, and also volume is bigger, as considering the requirement of the pipeline installation gradient again, will influence installing and using of outlet valve.Particularly cursory boundary dimension and weight are less, when tall building and low storied building are used simultaneously in the same heat supply network, because of the different exhaust effects that influence the low storied building heating system of the static pressure of water.The complex structure that the exhaust of existing outlet valve is chewed is installed, debugs all very difficult; Being connected between cursory and lever utilizes a bearing pin to fix, and cursory compression shock lower stress in water inlet is irregular, easily produces swing, influences exhaust effect.Above-mentioned defective has influenced installation, the use of horizontal automatic control pressure vent.

The purpose of this utility model provides a kind of improved horizontal automatic control pressure vent, and it adopts welded structure, and volume is little, and is in light weight, easy to install, and exhaust effect is stable.

The purpose of this utility model is achieved in that housing utilizes the pipe welded structure to replace existing aluminium alloy casting structure, cancel former exhaust gland, exhaust chewed directly be installed on the valve seat by screw thread, the excircle that valve seat exposes housing parts is shaped on screw thread, and, valve seat is fixed on the housing by sealing gasket and nut.One end is hinged on the lever on the valve seat, connects sliding plug and cursory by bearing pin, is connected firmly between cursory and lever for making, and adopts double-pin to fix, and can guarantee cursoryly not produce swing under the intake pressure impact, the raising exhaust effect.By spring sliding plug is held out against in exhaust and chew the bottom, when cursory decline, the sliding plug of lever drives moves down, and the through hole of air on valve seat in the outlet valve housing enters exhaust and chew the discharge housing.Along with the water surface in the housing rises, cursoryly float, sliding plug is closed exhaust again and is chewed under the effect of lever and spring force.So repeatedly, can reach air in the heating system and discharge at any time and be not with water, the assurance system normally moves.

Because the utility model adopts the pipe welded structure, structural volume than existing cast aluminium alloy is little, in light weight, processing is simple, reduce cost, also can reduce exhaust and chew top and shell water inlet tube head center line Lift, easy for installation, be particularly suitable for the existing every layer height of tall building and be not more than 2.8 meters heating system and install and use.Cursory weight is selected suitably, can make that tall building and low storied building adopt the utility model simultaneously in same heat supply network, even the static pressure of tall building water equals zero, the static pressure of low storied building water is within 80m water column height, still can normally use, keep tight-closed and do not seep water, water is not with in smooth and easy exhaust, safe and reliable, exhaust effect is stable.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the sectional view of a kind of concrete structure of the utility model.

Fig. 2 is the structural representation that the utility model shell end is opened.

Fig. 3 is the structural representation of opening about the utility model housing.

Fig. 4 is the structural representation that the utility model housing is opened up and down.

Describe concrete structure of the present utility model and working condition in detail according to Fig. 1～4.This device utilizes pipe, and promptly water gas conveying steel pipe or seamless steel pipe are welded into housing 8.Housing 8 can be made into end opening type or left and right sides opening type according to the as installed status requirement, and the pipeline end by flange links into an integrated entity and is installed on heating system also can be made into lower open-type, is installed on heating system pipeline intermediate portion.Exhaust is chewed 4 and is installed by screw thread and seal ring and to be sealed in the valve seat 3.Have externally threaded valve seat 3 and be installed on the housing 8 by sealing gasket and nut seal, valve seat 3 exposes the part of housing 8 can install elbow, and elbow can be appointed and revolved direction as required, connects the venting conduit, causes drainage pipeline.The sliding plug 5 that connects by lever 7 and cursory 9 is installed in the housing 8, and lever 7 one ends are hinged on valve seat 3 bottoms with bearing pin, and the other end utilizes two bearing pins to fixedly connected with cursory 9, keep cursory 9 to stablize and do not swing.The end that sliding plug 5 has a sealing gasket is chewed 4 bottom by spring 6 top tight sealing exhausts, and the other end is hinged by bearing pin and lever 7, and cursory 9 move up and down, and drive sliding plug 5 by lever 7 and move, and chew 4 opening and closing with the realization exhaust.Consider the restriction of existing floor space height, for ease of installing, 4 tops to housing 8 water inlet tube head center line Lifts are chewed in exhaust should be not more than 84mm.For tall building and low storied building in same heat supply network are used simultaneously, guarantee the smooth and easy exhaust of outlet valve, proper functioning, in the housing 8 cursory except that adopt double-pin fixing, also can make cursory weight remain on 200～230 grams, preferentially select 210 grams for use, external diameter is 54～70mm, preferentially select 56mm for use, length is 80～86mm, preferentially selects 82mm for use.The working pressure of this valve is 0～0.78MPa, and hot coal is 95～70 ℃ to 150～90 ℃, can satisfy the needs of current developing tall building and high temperature parameter heating exhaust.

Claims

1, a kind of horizontal automatic control pressure vent, sliding fill in and cursory that comprises the housing that connects by flange, is assembled in that valve seat on the housing is chewed with exhaust and is connected by lever, it is characterized in that housing adopts the pipe welded structure, cursoryly fix with the employing double-pin that is connected of lever.The excircle that valve seat exposes housing parts is shaped on screw thread.

2, outlet valve according to claim 1 is characterized in that cursory weight is 200～230 grams, preferentially selects 210 grams for use, and external diameter is 54～70mm, preferentially selects 56mm for use, and length is 80～86mm, preferentially selects 82mm for use.

3, outlet valve according to claim 1 is characterized in that exhaust chews top to housing water inlet tube head center line Lift and be not more than 84mm.