Marine high-pressure water mist nozzle connecting device

Abstract

The utility model provides a marine high-pressure water mist nozzle connecting device which comprises a spiral coil pipe, a nozzle, a clamping sleeve nut and a clamping ring, the spiral coil pipe is located at the tail end of a spraying pipeline and is formed by spirally bending the spraying pipeline, and the water outlet end of the spiral coil pipe penetrates through the clamping sleeve nut and the clamping ring located on the inner side of the clamping sleeve nut in sequence and then is connected with the spraying pipeline through the clamping sleeve nut. The clamping ring extends into an inner cavity of the water inlet end of the spray head, the outer wall of the water inlet end of the spray head is in threaded connection with the clamping sleeve nut through an external thread part, and the clamping ring forms a sealing piece on the outer side of the spiral pipe after being pressed. While the original function of the high-pressure hose is guaranteed, the number of joints is reduced, the reliability of a system is improved, outsourcing parts are not needed, and the cost of the whole system is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of marine pipelines, in particular to a marine high-pressure water mist nozzle connection device. Background Art

[0002] Due to the fire protection requirements of the classification society, a high-pressure water mist system needs to be installed in the passenger area. At the same time, in order to ensure the aesthetics and spray fire extinguishing effect, the nozzle of the high-pressure water mist system needs to be arranged in the center of the ceiling.

[0003] During construction, there is often a construction error between the end of the installed sprinkler pipe and the nozzle installation port in the center of the ceiling. In order to correct the error, a high-pressure hose is now used to connect the nozzle and the end of the sprinkler pipe. Since movable joints are used at both ends of the high-pressure hose connected to the nozzle and the sprinkler pipe, in the high-pressure water mist system of the entire ship, the number of joints doubles relative to the number of nozzles, which increases the risk of system leakage. At the same time, compared with ordinary pipes, high-pressure hoses are expensive, which increases the installation cost of the entire high-pressure water mist system. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a marine high-pressure water mist nozzle connection device, which reduces the number of joints, improves the reliability of the system, and eliminates the installation of high-pressure hoses, saving the cost of the entire system.

[0005] The technical solution of the utility model is: a marine high-pressure water mist nozzle connection device, including a spiral coil, a nozzle, a ferrule nut and a clamping ring, the spiral coil is located at the end of the spray pipeline and is formed by spiral bending of the spray pipeline, the water outlet end of the spiral coil passes through the ferrule nut and the clamping ring located on the inner side of the ferrule nut in sequence, and then extends into the inner cavity of the water inlet end of the nozzle, the outer wall of the water inlet end of the nozzle is threadedly connected with the ferrule nut through the external threaded part, and the clamping ring forms a seal on the outer side of the spiral coil after being compressed. The terminal pipeline of the spray pipeline is spirally coiled into a spiral coil by bending and forming, replacing the high-pressure hose in the prior art. Since the spiral part of the spiral coil is elastic, after the connection between the spiral coil and the nozzle is completed, the nozzle position can be adjusted to a precise position, while ensuring the original function of the high-pressure hose, reducing the number of joints, improving the reliability of the system, and the spiral coil does not need to be purchased from outside, saving the cost of the entire system.

[0006] The two ends of the clamping ring have conical surfaces, and the inner wall of the water inlet end of the nozzle and the inner wall of the clamping nut are respectively provided with a clamping groove and a pressing groove that match the conical surfaces. When the water inlet end of the nozzle cooperates with the thread of the clamping nut, the clamping groove and the pressing groove exert an extrusion force on the clamping ring, so that the inner edge of the clamping ring is embedded in the outer wall of the spiral coil, forming a cut-in seal for the spiral coil.

[0007] The central axis of the spiral coil is perpendicular to the ceiling. The spiral coil is horizontally arranged between the ceiling and the deck, so that the spiral coil has a larger diameter in a limited vertical space, thereby improving the adjustability of the sprinkler head.

[0008] The diameter of the spiral coil is 200-300 mm, and the pitch is 20-30 mm.

[0009] The number of turns of the spiral coil is 2-3 turns.

[0010] A mounting plate is fixed to the outside of the nozzle, and the mounting plate is detachably mounted on the ceiling via bolts, and a buffer gasket is sandwiched between the mounting plate and the ceiling. The design of the buffer gasket can further buffer the impact force generated when the water mist is released.

[0011] The beneficial effects of the utility model are as follows: the terminal pipe of the spray pipe is bent into a spiral coil, thereby replacing the high-pressure hose in the prior art; since the spiral part of the spiral coil is elastic, the position of the nozzle can be adjusted to a precise position after the connection between the spiral coil and the nozzle is completed; while ensuring the original function of the high-pressure hose, the number of joints is reduced, thereby improving the reliability of the system; and the spiral coil does not need to be purchased from outside, thereby saving the cost of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the connection between the nozzle and the spiral coil in the utility model;

[0014] Figure 3 yes Figure 2 A partial enlarged view of middle A.

[0015] Figure numerals: 1, deck; 101, pipe bracket; 2, ceiling; 3, sprinkler pipe; 4, spiral coil; 5, sprinkler head; 6, ferrule nut; 7, retaining ring; 8, mounting plate; 9, buffer gasket. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution in the utility model, the technical solution in the utility model is clearly and completely described below in conjunction with the accompanying drawings. Other embodiments obtained by those skilled in the art without making any creative work should all fall within the protection scope of the utility model.

[0017] like Figure 1-Figure 3As shown, the utility model provides a marine high-pressure water mist nozzle connection device, including a spiral coil 4, a nozzle 5, a ferrule nut 6 and a clamping ring 7. The spiral coil 4 is located at the end of the spray pipe 3 and is formed by spiral bending of the spray pipe 3. The water outlet end of the spiral coil 4 passes through the ferrule nut 6 and the clamping ring 7 located inside the ferrule nut 6 in sequence, and then extends into the inner cavity of the water inlet end of the nozzle 5. The outer wall of the water inlet end of the nozzle 5 is threadedly connected with the ferrule nut 6 through the external thread part. The clamping ring 7 forms a seal on the outer side of the spiral coil 4 after being compressed. Figure 3 As shown, in this embodiment, both ends of the clamping ring 7 have conical surfaces, and the inner wall of the water inlet end of the nozzle 5 and the inner wall of the clamping nut 6 are respectively provided with a clamping groove and a pressing groove that match the conical surface. As the clamping nut 6 and the water inlet end of the nozzle 5 are threadedly matched, the inner end surface of the clamping nut 6 and the end surface of the water inlet end of the nozzle 5 approach each other until the pressing groove of the clamping nut 6 pushes the clamping ring 7 forward to the clamping groove of the water inlet end of the nozzle 5. Under the cooperation of the clamping groove, the conical surface of the clamping ring 7 makes the inner edge of the clamping ring 7 embed into the outer wall of the spiral coil 4, forming a cut-in seal for the spiral coil 4. The spiral coil 4 directly spirally wound and bent at the end of the spray pipeline 3 replaces the high-pressure hose in the prior art. Each nozzle 5 connection device has only one connection point with the nozzle 5. Compared with the prior art, the number of joints is reduced to half, thereby improving the reliability of the system. At the same time, the spiral coil 4 can be bent and formed on-site by the operator using tooling, without the need for external purchase, thus saving the cost of the entire system. Since the spiral part of the spiral coil 4 is elastic, it can be guaranteed to have the original function of the high-pressure hose, that is, after completing the connection between the spiral coil 4 and the nozzle 5, the position of the nozzle 5 is adjusted to the nozzle 5 installation port on the ceiling 2. The elasticity of the spiral coil 4 can also buffer the impact force generated when the water mist is released.

[0018] Further preferably, since the spiral coil 4 and the spray pipe 3 are arranged together between the ceiling 2 and the deck 1, in order to make the spiral coil 4 have a larger diameter in a limited vertical space, thereby increasing the adjustable range of the position of the spray head 5, the central axis of the spiral coil 4 is perpendicular to the ceiling 2, that is, the spiral coil 4 is horizontally arranged between the ceiling 2 and the deck 1. Further preferably, in order to ensure that the spiral part of the spiral coil 4 has sufficient elasticity, the diameter of the spiral coil 4 is 200-300mm, the pitch is 20-30mm; the number of turns of the spiral coil 4 is 2-3 turns.

[0019] like Figure 2 As shown, a mounting plate 8 for fixed connection with the ceiling 2 is provided on the outside of the nozzle 5. In this embodiment, the mounting plate 8 is welded to the outer wall of the nozzle 5 and is detachably mounted above the ceiling 2 by bolts. A buffer gasket 9 is sandwiched between the mounting plate 8 and the ceiling 2. The buffer gasket 9 further buffers the impact force generated by the nozzle 5 on the ceiling 2 when the water mist is released.

[0020] When implementing this technical solution, the end of the pre-installed spray pipe 3 is bent and formed, and the diameter and pitch of the spiral winding are set, such as a diameter of 250 mm, a pitch of 20 mm, and three turns of winding. The spray pipe 3 is fixed on the pipe bracket 101 under the deck 1, and the water inlet end of the nozzle 5 is sealed and connected to the outlet end of the spiral coil 4 through the sleeve nut 6 and the clamping ring 7, so that the nozzle 5 is pre-installed before the ceiling 2 is installed, and the pressure test of the high-pressure water mist system can be completed in advance; after the ceiling 2 is installed, under the elastic action of the spiral coil 4, the nozzle 5 is adjusted to the nozzle 5 installation port of the ceiling 2, and the mounting plate 8 on the outside of the nozzle 5 is fixed to the ceiling 2 by bolts. Since the number of interfaces is reduced by half compared with the prior art, the reliability of the system is improved. A total of 550 to 600 nozzles 5 need to be installed in the high-pressure water mist system of the entire hull, and 220,000 to 300,000 yuan can be saved for the project without the need to purchase high-pressure hoses (about 400-500 yuan / root), which has a very high economic value.

Claims

1. A marine high-pressure water mist nozzle connection device, characterized in that: It includes a spiral coil, a spray nozzle, a ferrule nut and a retaining ring. The spiral coil is located at the end of the spray pipeline and is formed by spiral bending of the spray pipeline. The water outlet end of the spiral coil passes through the ferrule nut and the retaining ring located on the inner side of the ferrule nut in sequence, and then extends into the inner cavity of the water inlet end of the spray nozzle. The outer wall of the water inlet end of the spray nozzle is threadedly connected with the ferrule nut through an external threaded portion, and the retaining ring forms a seal on the outside of the spiral coil after being pressurized.

2. A marine high-pressure water mist nozzle connection device according to claim 1, characterized in that: The two ends of the clamping ring are provided with conical surfaces, and the inner wall of the water inlet end of the nozzle and the inner wall of the clamping nut are respectively provided with a clamping groove and a pressing groove matching with the conical surfaces.

3. A marine high-pressure water mist nozzle connection device according to claim 1 or 2, characterized in that: The central axis of the spiral coil is perpendicular to the ceiling.

4. A marine high-pressure water mist nozzle connection device according to claim 1 or 2, characterized in that: The diameter of the spiral coil is 200-300 mm, and the pitch is 20-30 mm.

5. A marine high-pressure water mist nozzle connection device according to claim 4, characterized in that: The number of turns of the spiral coil is 2-3 turns.

6. A marine high-pressure water mist nozzle connection device according to claim 1 or 2, characterized in that: A mounting plate is fixed on the outside of the nozzle, and the mounting plate is detachably mounted above the ceiling via bolts, and a buffer gasket is sandwiched between the mounting plate and the ceiling.

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