CN100453860C

CN100453860C - Stop valve with guiding manual ball valve

Info

Publication number: CN100453860C
Application number: CNB2007100046518A
Authority: CN
Inventors: 王德洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-13
Filing date: 2007-01-13
Publication date: 2009-01-21
Anticipated expiration: 2027-01-13
Also published as: CN101000102A

Abstract

The invention is a shutoff valve with pilot manual ball valve, comprising main valve body, inlet, outlet, valve core, and bottom hole of valve core, where the valve core is jacketed with guiding sleeve and seal ring, upper and lower baffles are arranged in the main valve body, the upper part of the main valve core is equipped with cover plate, the main valve body, the baffles, the valve core and the cover plate form upper room, outer room and inner room, the central part between the valve core and the cover plate is provided with spring, and the upper room of the main valve body and flow guide pipe of the outer room are equipped with manual stainless steel ball valves. And it can be widely applied to manual valves in oil fields, chemical industries, drinks, medicines, tap water, natural gas and other industries for flow control, especially suitable to act as a fire valve, having advantages of operating flexibility and convenience and saving labor, high accuracy, quick action, stainlessness, simple installation, long service life, and being suitable for remote control, single control or group control, etc.

Description

The stop valve of band guiding manual ball valve

Technical field

The utility model relates to a kind of stop valve, particularly has the stop valve of the pilot valve of manual control ball valve, is suitable for doing fire valve especially.

Background technique

The fire-fighting open and close of stop valve, generally adopting the mechanical type handwheel to rotate at present realizes, these valves, indoor installation on the wall, outdoor mounted is in ad hoc shallow well, pull all inconvenience with hand is stubborn with spanner, mechanical handwheel rotates the open and close to stop valve, slow in one's movements, easy-to-rust, be difficult to open, operation inconvenience, when fire fighting finishes, bleed off the surplus water rate power of fire-extinguisher water hose, labor intensity is big, the be far from suitable needs of the fire-fighting fire fighting of racing against time, time-delay thereby damnous phenomenon are not rarely seen thus.

Through market survey and retrieval, find to adopt manual ball valve to control the material object and the related data of the open and close of the stop valve that fire-fighting uses as pilot valve as yet.

From the consideration that is close of relevant technologies such as simple installation and low cost, the utility model rotates the control stop valve with the mechanical type handwheel and opens and closes the contrast material of making prior art.

The model utility content

At the above-mentioned deficiency of prior art, the purpose of this utility model be design a kind of not corrosion, easily open and close, action is fast, sensitivity is good, the stop valve of band guiding manual ball valve.

The purpose of this utility model can realize by following measure:

It contains main valve body, import, outlet, go up through-flow chamber, following through-flow chamber, spool, upper clapboard and lower clapboard, upper part of the main valve body has cover plate, dividing plate in main valve body wall and the main valve body, spool, be with the chamber between the cover plate, the mistress, inner room, spool is class alms bowl shape, the spool bottom outlet is arranged at the spool bottom, pressure ring is arranged at spool top, the spool periphery has guide sleeve, the last inwall of guide sleeve has seal ring, the central part of spool and cover plate is fixed with spring, and last chamber has honeycomb duct to be communicated with the mistress, and the aperture of spool bottom outlet is less than the internal diameter of honeycomb duct, outer chamber walls has the dewatering orifice, and the stainless steel manual ball valve is installed on the honeycomb duct.

Base plate is arranged at the main valve body bottom, and base plate has pollutant exhaust hole, and this hole is equipped with sealing nut.

The beneficial effects of the utility model are: not corrosion, easily open and close, action is fast, bleed off surplus water in the water band convenient, simple, long service life be installed.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model scheme of installation.

Embodiment

The utility model is further specified below in conjunction with embodiment and with reference to accompanying drawing: the utility model contrasts the stop valve of the general mechanical type handwheel rotation of present fire valve and has done as above to improve: cancelled handwheel, valve rod, interior lifting nut, change guide pad and guiding groove into guide sleeve 5, change the cheese spool into class alms bowl shape spool 13, and open spool bore 14 in the bottom, the former valve rod hole of loam cake transformed into be pod apertures, because of increasing pressure ring 11, seal ring 6 and change spool 13 into class alms bowl shape, through-flow chamber is divided into goes up chamber 10, the mistress 4, inner room 12, be equipped with honeycomb duct 22 and stainless steel manual ball valve 8 in last chamber and mistress's outside, central part at the

cover plate

7 and 13 ends of spool adds spring 9, spool 13 tops add the pressure ring 11 that compresses seal ring 6, on mistress 4 wall, have dewatering orifice 16, the nut screwing clamping sealing is arranged at ordinary times.

This valve is that example illustrates working state with the controlled water flow: set manual ball valve 8 earlier and close, as do not have fire and take place, water not at ordinary times, then following through-flow chamber 17, last chamber 10, mistress 4, inner room 12, be full of water in the honeycomb duct 22, the hydraulic balance of upper and lower part in the valve body is under the elastic force effect of the deadweight of spool 13 and spring 9, spool 13 is in falling state, valve closing; In case breaking out of fire connects fire-extinguisher water hose, twist spanner 21, open manual ball valve 8, current direction water band in outlet 15, mistress 4, the last chamber 10, top hydraulic pressure reduces, and the hydraulic pressure in the following through-flow chamber 17 is greater than top hydraulic pressure, spool 13 is backed down, and the valve of main valve body has sufficient water with the door open for fire fighting.Fire fighting finishes, and turns on the dewatering orifice 16 on the main valve body, bleeds off the superfluous water in the water band, furls the water band.Another effect of dewatering orifice is that Decompression valves is installed, and water band hydraulic pressure is excessive when putting out a fire with wealthy joint, reduces pressure automatically when the fireman is difficult to handle.

This valve except that being used to do fire valve, any need manually directly the stop valve of switching all be suitable for, as the control valve in the water utility, biotope with water valve etc., but be not used in fire-fighting dewatering orifice 16 need be set.

As in the environment of different specific weights such as oil, rock gas, different pressures, using, then answer the wall thickness of corresponding adjustment spool, pressure ring to increase and decrease weight.

The stainless steel manual ball valve 8 that the utility model adopts is commercially available, and the import 2 of manual ball valve 8, outlet 15 are tapped on the honeycomb duct 22.

Claims

1, a kind of stop valve with guiding manual ball valve, include main valve body (1), import (2), outlet (15), go up through-flow chamber, following through-flow chamber (17), spool (13), upper clapboard (3) and lower clapboard (18), cover plate (7) is arranged at main valve body (1) top, it is characterized in that the dividing plate (3 in main valve body (1) wall and the main valve body, 18), spool (13) will be gone up through-flow chamber with cover plate (7) and be separated into chamber (10), mistress (4), inner room (12), spool (13) is class alms bowl shape, spool bottom outlet (14) is arranged at the spool bottom, pressure ring (11) is arranged at spool (13) top, the spool periphery has guide sleeve (5), the last inwall of guide sleeve (5) has seal ring (6), spool (13) is fixed with spring (9) with the central part of cover plate (7), last chamber (10) has honeycomb duct (22) to be communicated with mistress (4), the aperture of spool bottom outlet (14) is less than the internal diameter of honeycomb duct (22), have dewatering orifice (16) on mistress (4) wall, stainless steel manual ball valve (8) is installed on the honeycomb duct (22).

2, the stop valve of band guiding manual ball valve as claimed in claim 1 is characterized in that valve body lower portion has base plate (20), and base plate (20) has pollutant exhaust hole, and this hole is equipped with sealing nut (19).