The dry type actuating valve
Technical field
The utility model relates to a kind of dry type actuating valve that is used for high-pressure fine water mist fire-extinguishing system, and upright or level is installed, and profile is the hexagonal column, adopts pressurised driving piston opening structure; During action, rotate handwheel or charge into gas to driving gas port, promotion piston, mandrel, sealing gasket assembly move to feed-water end; Make sealing gasket leave the valve seal dome; Fire water supply is discharged, drive the high pressure water control valve that drenches with rain and open fire extinguishing, belong to fire-fighting control field.
Background technique
Present actuating valve, the producer that produces similar products both at home and abroad is few, and employing pressure fixing valve that has and switching valve combination are used; Pipe arrangement is complicated, offers Φ 2mm spilled water hole, is main at ordinary times; There is Φ 2mm excretion all the time in the water-filling supercharging during startup, drives not fast, also not antifreeze.
Existing actuating valve adopts the casting valve body, and rated working pressure is 2.5MPa, and pressure-bearing is on the low side, and is bulky, and only enable manual is opened, and no dry type drives function; Do not possess non-electric remote control function, prevent function not freezing, explosion-proof, anti-strong electromagnetic.Can't satisfy the heavy pressure fine spray fire-fighting fire extinguishing control application requirements of offshore oil platform, power transformer, oil refinery device, underground hydraulic station/lubricant oil station, cable tunnel/cable interlayer, three-dimensional coal pulverizer.
Summary of the invention
Low, bulky in order to solve current actuating valve working pressure, only enable manual is opened, and no dry type drives the defective of function; Do not possess non-electric remote control function, prevent function not freezing, explosion-proof, anti-strong electromagnetic.The utility model provides a kind of dry type actuating valve, and profile is the hexagonal column, adopts pressurised driving piston opening structure; The cutting ferrule joint of dry type actuating valve water outlet is connected on high pressure and drenches with rain on the water control valve actuator chamber, and the sealing gasket of dry type actuating valve is anchored on the mandrel head by flat gasket, mandrel nut, and the mandrel cylindrical is with the O RunddichtringO, and afterbody is tightened against in the piston; Be welded with the cutting ferrule joint on the valve body, spring is enclosed within respectively on piston and the valve body spring seat counterbore; Push rod is with the O RunddichtringO, and the push rod plush copper stretches in the piston hole, and handwheel sleeve is at the push rod tail end, and push rod screws in locking nut, and locking nut is tightened in the valve body drive end; At ordinary times, spring and fire water supply promote piston, mandrel, sealing gasket assembly jointly and move to drive end, and sealing gasket contacts with the valve seal dome, valve is in closes sealing state; During action; Clockwise rotate handwheel or charge into gas to driving gas port; Promotion piston, mandrel, sealing gasket assembly move to feed-water end; Make sealing gasket leave the valve seal dome, with fire water supply through the enlarging chamber, the cutting ferrule joint of Φ 6mm hole, water outlet discharges, high pressure is drenched with rain, and the supercharging of water control valve actuator chamber water-filling is opened, fire extinguishing.
The utility model be achieved in that the dry type actuating valve by: handwheel (1), hexagon nut (2), push rod (3), locking nut (4), valve body (5), cutting ferrule joint (6), piston (7), mandrel (8), sealing gasket (9), flat gasket (10), mandrel nut (11), O RunddichtringO (12), spring (13) are formed.Sealing gasket is anchored on the mandrel head by flat gasket, mandrel nut, and the mandrel cylindrical is with the O RunddichtringO, and afterbody is tightened against in the piston; Be welded with the cutting ferrule joint on the valve body, spring is enclosed within respectively on piston and the valve body spring seat counterbore; Push rod is with the O RunddichtringO, and the push rod plush copper stretches in the piston hole, and handwheel sleeve is at the push rod tail end, and push rod screws in locking nut, and locking nut is tightened in the valve body drive end; At ordinary times, spring and fire water supply promote piston, mandrel, sealing gasket assembly jointly and move to drive end, and sealing gasket contacts with the valve seal dome, valve is in closes sealing state; During action; Clockwise rotate handwheel or charge into gas to driving gas port; Promotion piston, mandrel, sealing gasket assembly move to feed-water end; Make sealing gasket leave the valve seal dome, with fire water supply through the enlarging chamber, the cutting ferrule joint of Φ 6mm hole, water outlet discharges, high pressure is drenched with rain, and the supercharging of water control valve actuator chamber water-filling is opened, fire extinguishing.
The beneficial effect of the utility model is: reached the 6MPa rated working pressure; Realized, on the ground high-order protective area high pressure the drench with rain Secure Application requirement of water control valve underground in Ground Control; Satisfy the interlock control requirement of non-heating zone of north of china in winter and South Sea offshore oil platform high-temperature area, satisfied the requirement of explosion proof of chemical industry occasion.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the section of structure of the utility model.
Fig. 2 is the outline drawing of the utility model.
Fig. 3 is the vital part in the utility model: the mandrel plan view.
Fig. 4 is the vital part in the utility model: the piston sectional drawing.
Fig. 5 is the vital part in the utility model: the valve body sectional drawing.
Valve body: be the hexagon prism profile, feed-water end adopts Rc1/2 " screw thread is processed with the drive end internal thread; Φ 11.5mm enlarging chamber, sealing dome; mandrel pilot hole, piston pilot hole, the spring seat counterbore, Φ 2mm drives gas port, Φ 6mm water outlet, Φ 2mm atmosphere entry; The mandrel pilot hole keeps concentric with the piston pilot hole, and this two Kong Bingyu sealing dome keeps vertical.
Mandrel: two is processed with screw thread, and feed-water end is established the clamping plane of sealing gasket, and head has straight groove, and the mandrel pilot hole that the stage casing cylindrical is provided with O RunddichtringO groove and valve body keeps motive sealing.
Piston: the piston pilot hole that big footpath cylindrical is provided with O RunddichtringO groove and valve body keeps motive sealing, and the macro-axis sidetracking has push rod plush copper hole, and little axle side is processed with: the fastening screw of mandrel, mandrel positioning hole.
Push rod: adopt long pitch screw, realize quick pushing tow and return; The afterbody side of being milled with body, stage casing cylindrical are provided with O RunddichtringO groove, and the top is the circular arc plush copper.
The technological scheme that its technical problem of the utility model solution is taked is:
The structure of gas-powered, the water outlet of pressure spring piston opening encapsulation pad is adopted in design, realizes non-electric remote control function, reach performance anti-freezing, explosion-proof, anti-strong electromagnetic, and configuration manually opens and closes the control handwheel.
Press the core component-valve body of performance characteristics design the utility model of fluid mechanics, this valve, forging bar precision machining forms, and drives gas port and distinguishes inferior arc welding cutting ferrule joint with water outlet, and compact structure has also reached the rank of 6MPa high pressure; Feed-water end adopts R
c1/2 " screw thread, drive end are processed with M27 * 2 internal threads, and Φ 11.5mm enlarging chamber, R1 seal dome, Φ 8mm mandrel pilot hole, Φ 21mm piston pilot hole, and the spring seat counterbore, Φ 2mm drives gas port, Φ 6mm water outlet, Φ 2mm atmosphere entry; The mandrel pilot hole keeps concentric with the piston pilot hole, and this two Kong Bingyu sealing dome keeps vertical.
Embodiment
The dry type actuating valve is made up of handwheel, hexagon nut, push rod, locking nut, valve body, cutting ferrule joint, piston, mandrel, sealing gasket, flat gasket, mandrel nut, O RunddichtringO, spring.Dry type actuating valve profile is the hexagonal column, adopts pressurised driving piston opening structure; The cutting ferrule joint of dry type actuating valve water outlet is connected on high pressure and drenches with rain on the water control valve actuator chamber, the cutting ferrule joint that drives gas port with drive source of the gas and join; The sealing gasket of dry type actuating valve is anchored on the mandrel head by flat gasket, mandrel nut, and the mandrel cylindrical is with the O RunddichtringO, and afterbody is tightened against in the piston; Be welded with the cutting ferrule joint on the valve body, spring is enclosed within respectively on piston and the valve body spring seat counterbore; Push rod is with the O RunddichtringO, and the push rod plush copper stretches in the piston hole, and handwheel sleeve is at the push rod tail end, and push rod screws in locking nut, and locking nut is tightened in the valve body drive end; At ordinary times, spring and fire water supply promote piston, mandrel, sealing gasket assembly jointly and move to drive end, and sealing gasket contacts with the valve seal dome, valve is in closes sealing state; During action; Clockwise rotate handwheel or charge into gas to driving gas port; Promotion piston, mandrel, sealing gasket assembly move to feed-water end; Make sealing gasket leave the valve seal dome, with fire water supply through the enlarging chamber, the cutting ferrule joint of Φ 6mm hole, water outlet discharges, high pressure is drenched with rain, and the supercharging of water control valve actuator chamber water-filling is opened, fire extinguishing.When resetting; Rotate counterclockwise handwheel or venting and drive gas port pressure; Piston, mandrel, sealing gasket assembly move to drive end under spring and fire water supply acting in conjunction; Sealing gasket contact with the valve seal dome recover to close, sealing state, make the high pressure water control valve actuator chamber that drenches with rain interrupt voltage supply and close.
1) material: valve body, push rod, locking nut, mandrel nut, hexagon nut, flat gasket, cutting ferrule joint adopt low carbon stainless steel; Carbon stainless steel during spring adopts, piston, mandrel are tin bronze alloys, sealing gasket and O RunddichtringO are butyronitrile rubber; Handwheel is a carbon steel, and surface anticorrosion is handled.
2) Applicable media: seawater, fresh water.
3) suitable environment temperature: feed-water end and pipeline thereof: 4 ℃--70 ℃; Drive gas port and pipeline thereof :-45 ℃--90 ℃.
4) applicable system: high-pressure fine water mist fire-extinguishing system.
5) rated working pressure: 6.0MPa, working pressure is high, and adaptability is strong.
6) Seal test pressure: 9.0MPa, indeformable, non-leakage.
7) propellant pressure: 3-4MPa; Driven medium: pressurized air, nitrogen.
8) drive distance: horizontal equivalent and height distance are unrestricted.
9) water flow: 120L/min.
10) import screw thread: R
c1/2 "; Driving gas port is that M14 * 1.5 cutting ferrules are connected with water outlet.
11) mounting type: vertical, level is installed.