The opening/shutting valve that temperature can be controlled
Affiliated technical field
The utility model relates to the opening/shutting valve that a kind of temperature can be controlled, especially can under the high temperature abnormal conditions, need not power supply and the automatic Open valve of external force, the temperature recovery just often temperature of automatic-closing valve can be controlled opening/shutting valve, and it belongs to fire-fighting valve manufacturing.
Background technique
Fire-fighting fire extinguishing is the very important sign of a progress of modern society, the progress of fire prevention and equipment is the progressive degree of a society of reflection, China's fire prevention and production development are rapid in recent years, but fire takes place really to increase severely with day, this is because social progress, the application of at present a large amount of plastic materialss, the continuous increase in the market of various simple and easy installations and furniture store and free market etc., there is the fire gear technology to relatively lag behind again, nearly all modern fire prevention all is external invention, lacks the original technology that tallies with the national condition in China and causes.
China is extensive use of automatic sprinkling system and adopts two kinds of methods substantially at present, a kind of is wet pipe system, a kind of is dry system, shower nozzle adopts glass bulb or easy molten metal substantially in wet pipe system, during work since glass bulb in medium be subjected to Temperature Influence, expansion causes the broken water ejection of glass bulb fire extinguishing, and combustible metal is because high temperature makes combustible metal dissolve, open shower nozzle and make water ejection fire extinguishing, this kind method is damage type, in case stopping the back system, system works water ejection fire can not stop automatically, cause the loss of water enchroachment (invasion) very big, need shutdown system manually, the current anhydrous fire extinguishing of back secondary resume combustion to the greatest extent sometimes, no matter glass bulb formula or combustible metal formula are damage type, in case the nozzle system that need more renew after the system works just can continue to use.Dry system is because shower nozzle adopts deluge system, therefore there is not firing-fighting medium in the system, need adopt methods such as temperature detecting temperature sensing when temperature variation, open drench valve water is passed to shower nozzle, dry system can't be worked under the support that does not have power supply as can be seen at this point.
Above dual mode is the best fire-fighting mode of generally acknowledging at present, but all huger because of system, price is also high, therefore, only be applicable to the hotel, restaurant and some large enterprises, be difficult to use for smaller fire prevention area and scope, and it is just more impracticable to need the frpf area to use to some, for example school, the kindergarten, geracomium, hospital, area, warehouse or the like does not all have the measure of automatic fire control, these become the dead angle of causing fire to bring out, and modern fire gear can't be implemented.
Summary of the invention
The purpose of this utility model provides a kind of installing and using simply, and can open valve voluntarily and make the shower nozzle sprinkling fire not by external force when abnormal high temperature takes place.And temperature descends after fire stops, and valve stops to supply water automatically, the anhydrous ejection of shower nozzle, and no matter opening or closing valve can work repeatedly.
For reaching the purpose of this utility model, the design has utilized marmem as temp-sensing element, utilize its thrust that when different temperatures, produces that magnet ring is moved up, the magnetic core that influences in the valve together moves up, pressure reduction changes about causing the piston in the valve, piston is moved up, and hydraulic pressure outwards sprays by valve body.During same normal temperature, marmem is contraction-like, bias spring is to lower compression magnet ring cover in the outer cover, magnet ring in the magnet ring cover moves down, under the effect of the magnetic line of force, the core assembly in the piston sleeve together moves down, and the interior hydraulic pressure of middle relief hole piston sleeve that stops up piston assembly rises piston assembly is promoted downwards, piston assembly stops up the anhydrous discharge of valve with the osculum of valve body.
Owing to adopted marmem, the variation of different deformation drive magnet ring moves up and down under different temperatures, influence by the magnetic line of force makes the core assembly in the piston sleeve together move up and down, valve is in the opening type closing state, thereby accomplished need not the external force power supply, valve just can be in water spray exactly or stop water spray ground state by variation of temperature, thereby reaches the purpose of this utility model.
Description of drawings
Fig. 1: side of the present utility model is cutd open schematic diagram
Among the figure: 1 valve body, 2 piston assemblys, 3 core assemblies, 4 piston sleeves, 5 magnet ring covers, 6 marmems, 7 collector mats, 8 mounting screws, 9 connecting rods, 10 bias springs, 11 magnet rings, 12 outer covers.
Embodiment
At first with core assembly (3), piston assembly (2) is put into the inner chamber of piston sleeve (4) successively, the corresponding position of piston sleeve (4) with valve body (1) spun firmly, magnet ring (11) is pressed into the inner chamber of magnet ring cover (5), connecting rod (9) is screwed in the upper end of magnet ring cover (5), bias spring (10) is inserted in has connecting rod (9) magnet ring cover (5), the magnet ring cover (5) that will have magnet ring (11) connecting rod (9) and bias spring (10), be inserted in the piston sleeve (4) that is screwed on the valve body (1), outer cover (12) is inserted in from the top down the piston sleeve (4) that has connecting rod (9) bias spring (10) magnet ring (11) and magnet ring cover (5), connecting rod (9) is passed from the upper end of outer cover (12), outer cover (12) spins with the outside thread of valve body (1), marmem (6) is inserted in connecting rod (9), make the bottom of marmem (6) and the last end in contact of outer cover (12), collector mat (7) is put into the upper end of connecting rod (9) and pushed down marmem (6), with mounting screw (8) with the upper end of connecting rod (9) spin into, simultaneously that collector mat (7) and connecting rod (9) is fixing, so far temperature can control keying valve all assembling finish.
During use, the piston assembly (2) that hydraulic pressure enters inner chamber piston sleeve (4) inner chamber of valve body (1) is subjected to stop up under the influence of hydraulic pressure osculum of valve body (1), the anhydrous outflow of valve, marmem (6) expands and upwards promotes collector mat (7) and move up when ambient temperature rises the expansion temperature reach marmem (6), because spinning with screw (8) with connecting rod (9), collector mat (7) is one, and connecting rod (9) spins with magnet ring cover (5), magnet ring (11) is pressed in the magnet ring cover (5), when therefore marmem (6) upwards promotes collector mat (7), connecting rod (9) magnet ring cover (5) magnet ring (11) piston sleeve (4) moves up together, because magnet ring (11) magnetic force influences core assembly (3), therefore, core assembly (3) together moves up, core assembly (3) is when moving up, the lower end of core assembly (3) breaks away from piston assembly (2), cause hydraulic pressure to release from the mesopore of piston assembly (2), the pressure reduction of formation up and down of the piston assembly that makes (2), under the effect of intake pressure, piston assembly (2) moves up, and current are directly sluiced from the water outlet of valve body (1).Facts have proved that the temperature that this kind method is produced can control opening/shutting valve, reliable operation not only, and also cheap.