Three-splashing type adjustable back-splashing spray nozzle for low-water-pressure-head pipeline water distribution system

Abstract

The invention relates to a three-splashing type adjustable back-splashing spray nozzle for a low-water-pressure-head pipeline water distribution system. According to the three-splashing type adjustable back-splashing spray nozzle, due to water energy spraying acting force generated through transition through a middle conical spraying channel from an inlet of a water spraying short pipe and contraction to an outlet of the water spraying short pipe, after hot water in the water distribution system pipe is sprayed to back-splashed two-core water spray [first splash] of a two-core water splashingdevice and back-splashed three-core water spray [second splash] of a three-core water splashing device through a horn-shaped diffusion nozzle of the adjustable water spraying short pipe respectively,one part of the hot water is sprayed to an arc slit nozzle on a spherical crown spraying body, and a formed film type micro-thin water film is sprayed on the whole water spraying surface; and the other part of the hot water is sprayed to a fine eyelet nozzle on a butterfly plate splasher[third splash] to form drop-type fine water drops to be splashed on the whole water spraying surface. The distance between the outlet of the water spraying short pipe on the adjustable water spraying short pipe part of a whole set of product and the secondary water splashing device part is set as follows: the adjustable component type integral structure is firm, durable and easy to overhaul, the water head of the section of the outlet of the water spraying pipe is low, the flow coefficient is large, the water spraying density is uniform, and the hollow phenomenon is avoided; and water drops generated through back-splashing spraying are tiny, the water film generated through the back-splashing spraying is micro-thin, and the cooling specific surface area is large, so that hot water is fully cooled and an excellent cooling effect is achieved.

Description

technical field [0001] The present invention relates to a three-splash adjustable back-splash sprinkler nozzle for pipeline water distribution system with low water pressure head, which is applicable to various types of circulating water cooling pipeline water distribution system and a nozzle sprinkler device for spraying and spraying. Distribute the three-splash adjustable back-splash spray nozzles used in the water distribution pipeline system to each low water pressure head to cool the circulating water {the circulating hot water entering the water distribution pipeline system}, because it is the water at the outlet of the spray short pipe nozzle It can spray the force, spray the hot water in the pipe of the water distribution system, through the trumpet-shaped diffuser nozzle of the adjustable short water spray pipe, to the secondary splasher, and splash the water of the second core through the backsplash of the second core splasher { After the first splash} and the three c...

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Problems solved by technology

[0004] As another example, at present, the patent publication number RU2368430C1 (disclosure date is September 27, 2009), discloses (the 20th paragraph of the 4th page of the description-the last paragraph of the 5th page, Figure 1-2 ) discloses: a nozzle adjusting device with a deflecting deflecting structure, including: an interface injection pipe housing 1, a deflecting deflecting structure plate 7 is arranged on the lower side of the nozzle, and the upper part of the deflecting deflecting structure plate 7 has a reflective umbrella Shaped structure 8, the water inlet element 2 in the middle, the middle part of the water inlet element 2 is composed of a spiral element shaft 3, a spiral plate 4, etc.; its working process is: the water flow forms a spiral flow from the upper shell 1 through the spiral element in the middle, Arriving at the lower deflection deflection structure plate 7, the water flows through the curved curve and hits the upper reflective umbrella structure 8 upwards. Under the blocking of the reflective umbrella structure 8, the water droplets are knocked into smaller water droplets; it can be seen that, Because there is no small hole on the deflection guide structure plate 7, when the nozzle of the deflection guide structure sprays downwards, sprays water film or water mist, so under the outer circle around the deflection guide structure plate 7, a large circle will be formed. The phenomenon of hollow blind area {that is, there is an anhydrous area on the entire spraying surface of a single nozzle compared with that of a single nozzle}; and because of the helical structure composed of the interface injection pipe shell 1, the helical element shaft 3, the helical plate 4, etc.; In addition, between the deflection deflection structure plate 7 and the reflective umbrella structure 8, the nozzle opening formed by the injection is small. Therefore, during the injection process of the nozzle, the water head H[m] value of the outlet section of the injection pipe is high and the flow coefficient μ value is high. Small size, can make the spraying density uneven on the entire spraying water surface, and there will be no water area, easy to block the spray channel, etc.

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