CN101584918B - Novel sprinkler head with early containment and fast responding performances - Google Patents

Abstract

The invention discloses a novel sprinkler head with early containment and fast responding performances used for a fire-fighting self-extinguishing system, comprising a valve cartridge, a spring, a deflector, a gasket, a glass ball, locking bolts, a small plug, a small frame, a valve, a sealing ring and a sprinkler head. A release mechanism consisting of the valve, valve cartridge, spring, small plug, gasket and glass ball is used for replacing an offset releasing mechanism by changing the structure of the sprinkler head body; the valve is used as the support of the deflector to adjust the positions of the glass ball, small plug and small frame, the stress of which are distributed rationally by changing the area ratio of the valve cartridge to the small plug; the problems of nonuniform water deposition and sprinkling of the release mechanism and plug and process defects of the frame are solved; manufacturing process is simplified; temperature sensing effects and the comprehensive performance of the novel sprinkler head with early containment and fast responding performances are improved; and the expected goal is achieved.

Description

Novel sprinkler head with early containment and fast responding performances

Technical field

The present invention relates to a kind of sprinkler head with early containment and fast responding performances, relate in particular to and a kind ofly be used for the fire-fighting automatic fire extinguishing system to have a temperature-sensitive effective, be swift in response, reliable in action is sprayed uniform novel sprinkler head with early containment and fast responding performances.

Background technology

In the fire-fighting automatic fire extinguishing system; sprinkler tip is being undertaken the monitoring condition of a fire and the enforcement two big missions that fight a fire; each sprinkler tip is all composed with a slice protected area; if the condition of a fire takes place in the zone; temperature-sensing element on the sprinkler tip will immediately be made a response, and opens shower nozzle automatic fire extinguishing system is put into operation.Sprinkler tip of a great variety, sprinkler head with early containment and fast responding performances is as the term suggests be to be good to be swift in response, suppressing the condition of a fire in early days has active operation significance to fire-fighting fire extinguishing.Common sprinkler head with early containment and fast responding performances with glass marble as temperature-sensing element, the relieving mechanism that biasing is set in the framework supports plug, make the minor diameter glass marble of temperature-sensitive effect sensitivity, only bear the balance that a small amount of component in the biasing mechanism is but maintaining device.The glass marble explosion made the relieving mechanism unstability of biasing when fire took place, and was thrown toward a side at the effect lower end cap of system pressure and spring force; When fire water was come down in torrents, pressure reduction increased in the system, and automatic fire extinguishing system just starts, and fire water will constantly be gushed out, by splash box with water spill to around, than other sprinkler tips then have the advantage that quick response suppresses the condition of a fire in early days.General and the sprayer body disjunctor of the framework of existing sprinkler head with early containment and fast responding performances, adopt cast and the processing and manufacturing of forging and pressing mode more, and defective workmanships such as stress is concentrated, cracking, shrinkage porosite are caused in the zone that wall thickness variation is bigger easily, thereby stay accident potential.Simultaneously, the existence of framework has hindered removes the unobstructed of relieving mechanism and plug path, very likely causes to stockpile phenomenon, influences shower nozzle to the uniformity of sprinkling water all around.Moreover glass marble is arranged on the shower nozzle medium position and is blocked by splash box, and the temperature-sensitive effect is not ideal enough relatively.The reaction sensitivity and the reliable in action that how to improve sprinkler head with early containment and fast responding performances are main contents involved in the present invention.

Summary of the invention

It is effective to the invention provides a kind of temperature-sensitive, reliable operation, stable performance, the even and higher novel sprinkler head with early containment and fast responding performances of action sensitivity of watering.

The present invention is by changing nozzle body version, optimal design, relieving mechanism is set, use valve body, spool, spring and little plug, sealing gasket, the relieving mechanism that glass marble constituted substitutes the relieving mechanism of biasing, and with the supporting of valve body as splash box, adjust glass marble, little plug, the position of small frame, change the area ratio of spool and little plug, the reasonable disposition glass marble, little plug, small frame stressed size, having solved traditional sprinkler head with early containment and fast responding performances might stockpile, it is inhomogeneous to sprinkle water, framework easily produces problems such as defective workmanship.Simplify manufacturing process, improved the temperature-sensitive effect, improved the combination property of sprinkler head with early containment and fast responding performances.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions (now being described as embodiment with the droop shower nozzle): the present invention is made up of spool, spring, splash box, sealing gasket, glass marble, lock screw, little plug, small frame, valve body, sealing ring, sprayer body.The sprayer body ladder is cylindric, and an end taper thread is connected with the nipple of automatic fire extinguishing system fire extinguisher canvas hose, the middle perforation, and the middle part is established internal thread and firmly is connected with valve body.Valve body is the ladder barrel shape, and big end is threaded with sprayer body, and small end is threaded with small frame, and step is established by the fixing splash box of small frame in the middle part, and the outside also is provided with the blind hole that the confession special spanner is used; Inner chamber is a shoulder hole, big stomidium footpath and spool movingly, between make it to keep sealing by sealing ring; The appropriate location is provided with flowing hole on the circumference, and keeps certain overflow section between valve body and the sprayer body.The valve body inner spool heads on spring and is threaded with sprayer body.Small frame is fixed on splash box on the valve body by screw thread, and sealing gasket, little plug, glass marble, lock screw are installed in the small frame successively.Usually be full of air in the cavity of valve body, when system pressurizeed, the stressed displacement of spool made the air compression produce back pressure; Also can be in cavity other liquid of filling to reduce decrement.

Description of drawings

Accompanying drawing 1 is a structure principle chart of the present invention.

Among the figure: 1, spool, 2, spring, 3, splash box, 4, sealing gasket, 5, glass marble, 6, lock screw, 7, little plug, 8, small frame, 9, valve body, 10, sealing ring, 11, sprayer body.

The specific embodiment

The present invention is described in further detail below in conjunction with the drawings and the specific embodiments: as shown in drawings: the present invention includes spool, spring, splash box, sealing gasket, glass marble, lock screw, little plug, small frame, valve body, sealing ring, sprayer body.Sprayer body [11] ladder is cylindric, and an end profile is a taper thread, is tightly connected with nipple on the fire extinguisher canvas hose, in establish conical bore, the middle perforation, other end endoporus is ladder, internal thread is established at the middle part and valve body [9] is tightly connected, and the port bore is bigger, and keeps certain overflow section between valve body [9]; Place, the big footpath of cylindrical establishes the symmetrical plane that spanner is used.Valve body [9] is the ladder barrel shape, and outside big end establishes screw thread and sprayer body [11] is tightly connected; The blind hole that special spanner is used is established at the middle part, and the front end step is provided with screw thread, and splash box [3] is buckled on the step fixing by small frame [8]; Splash box [3] is a disk-shaped part, and installing hole is established at the center, the uniform minute water tooth in rim; The endoporus of valve body [9] is a ladder hole, and big stomidium footpath is bigger, and several flowing holes are established in the appropriate location on the circumference; Valve body [9] small end aperture is less, is connected with little plug [7], serves as a contrast sealing gasket [4] therebetween.Spool [1] is cylindric, establish the seal groove of twice dress sealing rings [10] on the circumference, an end of spool [1] contacts with spring [2], and spool [1], sealing ring [10], spring [2] string are packed in the valve body [9] together, can move up and down, spool [1] should keep sealing with valve body [9]; Glass marble [5] stressed size by the ratio decision of spool [1] with the cross section of little plug [7], in order to improve the temperature-sensitive effect, suitablely rationally determine the suffered power of glass ball [5], so that responsive minor diameter glass marble is set.Small frame [8] in the form of a ring, internal thread is established at two ends, big end is threaded with valve body [9], small end is twisted the lock screw [6] of adjusting glass marble [5] pretightning force.

After novel sprinkler head with early containment and fast responding performances entered duty, spool [1] was subjected to the effect displacement forward of system pressure, and back pressure increases gradually in valve body [9] chamber, and when spool [1] when moving to certain position, the pressure at two ends will obtain balance; If system pressure produces fluctuation, spool [1] also will shake up and down seeks new equalization point.In the pressure limit of system's regulation, spool [1] must guarantee that valve body [9] flowing hole is in air-tight state.When running into the condition of a fire, glass marble [5] under the temperature of setting by explosion, Pressure in Back-pressure Cavity discharges, spool [1] reach, fire water leaks from valve body [9] flowing hole, system's internal pressure disequilibrium, automatic fire extinguishing system start, fire water just spill equably behind the overflow section directive splash box [3] between ground warp sprayer body [11] and valve body [9] continually to around.

In sum, the present invention adopts brand-new version, solve traditional sprinkler head with early containment and fast responding performances might stockpile, sprinkle water inhomogeneous, framework and easily produced problems such as defective workmanship, improve the combination property of sprinkler head with early containment and fast responding performances, reached its intended purposes.

Claims (2)

1. novel sprinkler head with early containment and fast responding performances, it is by spool [1], spring [2], splash box [3], sealing gasket [4], glass marble [5], lock screw [6], little plug [7], small frame [8], valve body [9], sealing ring [10], sprayer body [11] is formed, it is characterized in that changing nozzle body version, the top of splash box [3] does not have framework, with the supporting of valve body [9] as splash box [3], valve body [9], spool [1], spring [2], little plug [7], sealing gasket [4], glass marble [5] constitutes relieving mechanism, valve body [9] inner spool [1] heads on spring [2] and is threaded with sprayer body [11], in the cavity of valve body [9], be full of other liquid of air or filling, under the duty, spool [1] is subjected to the effect displacement forward of system pressure, back pressure increases gradually in valve body [9] chamber, when spool [1] when moving to certain position, the pressure at two ends will obtain balance, if system pressure produces fluctuation, spool [1] also will shake up and down seeks new equalization point; Adjust the position of glass marble [5], little plug [7], small frame [8], and by the area that changes spool [1] and little plug [7] recently regulate and control glass marble [5] stressed size; The small frame [8] that glass marble [5] is installed is arranged on the below of splash box [3].

2. novel sprinkler head with early containment and fast responding performances according to claim 1, it is characterized in that small frame [8] integral body shape ringwise, internal thread is established at two ends, and big end is threaded with valve body [9], and having the fixedly effect of splash box [3], the small end screw is twisted lock screw [6].

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