Inverted valve atomizing nozzle

Abstract

An inverted valve atomizing nozzle comprises a valve body and a nozzle inner core screwed at the spraying end of the valve body, one end of the nozzle inner core is located outside the valve body, a nozzle is arranged on the end face of the outer end of the nozzle inner core, and the inverted valve atomizing nozzle is characterized in that a limiting pressing ring is arranged in the valve body at the inner end of the nozzle inner core, and a through hole of the limiting pressing ring and a flow channel of the valve body are located on the same axis; and a rupture disk for blocking the flow channel covers between the limiting pressing ring and the top end in the valve body. The assembly mode is inverted assembly, the rupture disk is pressed and positioned through the limiting pressing ring, the limiting pressing ring is fixed through the nozzle inner core, the nozzle inner core is connected with the valve body through threads, the structure is simpler, more compact and more reasonable, assembly is easy, the whole structure is firm and reliable after fixing, blocking is effectively prevented, and the service life of the valve is prolonged. And the spraying effect of atomization is greatly improved, and the cooling and fire extinguishing effect of the fire extinguishing agent is fully guaranteed.

Description

Technical Field

[0001] The utility model relates to an atomizing nozzle, in particular to an inverted valve atomizing nozzle. Background Art

[0002] With the continuous development of the new energy industry, the use of lithium-ion batteries as a supplement and alternative to traditional energy sources is increasing in scope and quantity, and the corresponding demand for fire extinguishing systems is increasing. However, existing atomizing nozzles are complex in structure, difficult to process, and require complicated assembly, resulting in high costs. Therefore, atomizing nozzles with simple processing and easy assembly are needed to reduce production costs. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide an inverted valve atomizing nozzle.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: an inverted valve atomizing nozzle, comprising a valve body and a nozzle inner core screwed on the spraying end of the valve body, one end of the nozzle inner core is located outside the valve body, and a nozzle is provided on the outer end face of the nozzle inner core, which is characterized in that a limiting pressure ring is provided in the valve body at the inner end of the nozzle inner core, and the through hole of the limiting pressure ring is on the same axial line as the flow channel of the valve body, and a bursting disc that blocks the flow channel is covered between the limiting pressure ring and the top end of the valve body.

[0005] Furthermore, a freely rotatable cylindrical rotating core is provided in the cylindrical cavity of the inner core of the nozzle, and the rotating core is provided with a plurality of spiral channels connecting the upper and lower ends of the nozzle.

[0006] Furthermore, an O-ring is sleeved on the outer side of the thread of the nozzle inner core and is clamped between the nozzle inner core and the valve body.

[0007] Furthermore, a flat sealing gasket sleeved on the inner core of the nozzle is provided between the inner edge of the outer retaining ring of the inner core of the nozzle and the lower end of the valve body.

[0008] Furthermore, the main body of the valve body is cylindrical, and an external thread structure is provided on the periphery of the upper part, and a square plate structure is provided on the lower end which is integrated with the cylindrical main body.

[0009] Furthermore, a square mounting back plate is fixed below the square plate-shaped structure of the valve body by fixing bolts, and a circular opening is opened in the center of the mounting back plate.

[0010] Furthermore, the bursting disc is a rubber bursting disc.

[0011] Furthermore, the cone angle of the inner end spray cavity at the nozzle outlet is greater than 120°, and the atomization angle of the outlet is greater than 80°.

[0012] Through the above arrangement, the beneficial effects of the present invention are as follows: the assembly method of the present invention is inverted assembly, the bursting disc is pressed and positioned by a limiting pressure ring, the limiting pressure ring is fixed by the nozzle inner core, and the nozzle inner core and the valve body are connected by threads. Not only is the structure simpler, more compact and reasonable, and easy to assemble, but the overall structure is firm and reliable after fixation, effectively preventing blockage, greatly improving the atomization spray effect, and fully ensuring the cooling and fire extinguishing effect of the fire extinguishing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will now be further described with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the bottom structure of the present invention. DETAILED DESCRIPTION

[0017] like Figure 1-3 As shown, an inverted valve atomizing nozzle includes a valve body 1 and a nozzle core 2 screwed on the ejection end of the valve body 1, one end of the nozzle core 2 is located outside the valve body 1, and a nozzle 4 is provided on the outer end face of the nozzle core 2. It is characterized in that a limiting pressure ring 3 is provided in the valve body 1 at the inner end of the nozzle core 2, and the through hole of the limiting pressure ring 3 is on the same axial line as the flow channel of the valve body 1, and a bursting disc 5 that blocks the flow channel is covered between the limiting pressure ring 3 and the top end of the valve body 1.

[0018] A freely rotatable cylindrical swirl core 9 is provided in the cylindrical cavity inside the nozzle inner core 2. The swirl core 9 is provided with multiple spiral channels connecting the upper and lower ends of the nozzle 4. In this way, when the fire extinguishing agent flows into the swirl core 9, it can drive the swirl core 9 to rotate, and is divided into two liquid streams through the swirl core 9. Then, the two streams are converged in the injection cavity through a large-angle cone angle. The high-pressure spraying breaks up the fire extinguishing agent into atomized droplets.

[0019] In order to prevent the fire extinguishing agent in the flow channel from leaking during the use of the nozzle 4, resulting in material waste and affecting the atomization effect, an O-ring 6 is sleeved on the outer side of the thread of the nozzle core 2 and clamped between the nozzle core 2 and the valve body 1, and a flat sealing gasket 7 is sleeved on the nozzle core 2 between the inner edge of the outer retaining ring of the nozzle core 2 and the lower end of the valve body 1. The O-ring 6 and the flat sealing gasket 7 are both made of silicone rubber to further seal the contact parts and improve the sealing effect. In addition, according to the different materials of the fire extinguishing agent, atomizing nozzles of different materials can be selected to prevent the fire extinguishing agent from corroding or damaging the nozzle 4.

[0020] The main body of the valve body 1 is cylindrical, and an external thread structure is provided on the outer periphery of the upper part, and a square plate structure is provided at the lower end that is integrated with the cylindrical main body. A square mounting back plate 8 is fixed below the square plate structure of the valve body 1 by fixing bolts 10, and a circular opening is opened in the center of the mounting back plate 8.

[0021] The bursting disc 5 is a rubber bursting disc. The bursting pressure of the rubber bursting disc 5 is low and it can burst at 0.5 MPa. Specifically, silicone rubber is preferably used, which can still maintain its flexibility, resilience and surface hardness at high temperatures, and the mechanical properties do not change significantly; the bursting disc 5 can be broken after reaching a preset pressure. The preset pressure can be adjusted according to the application scenario of the nozzle 4. When the required preset pressure is higher, the bursting disc 5 can also be made of other materials, and the selection can be made according to actual conditions.

[0022] Usually, the nozzle 4 is installed in the middle position of the end of the battery box. In order for the nozzle 4 to cover the entire battery box, the cone angle of the spray chamber at the outlet of the nozzle 4 should be greater than 120°, and the atomization angle of the outlet should be greater than 80°, so that the atomization plane can cover the entire battery box.

[0023] The working principle of the utility model is as follows: when the system detects a fire in the battery box, the system controls the ejection of the fire extinguishing agent. When the fire extinguishing agent reaches the preset pressure, it breaks through the rubber bursting disc 5 and flows through the swirl core 9, driving the swirl core 9 to rotate. The rotating high-pressure turbulent gas-liquid mixed fire extinguishing agent is ejected at a high pressure through a large-angle cone angle, breaking the fire extinguishing agent to form atomized droplets. The atomized droplets can be quickly vaporized at high temperature, absorb heat, and effectively reduce the temperature of the fire source, achieving the effect of rapid fire extinguishing.

[0024] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An inverted valve atomizing nozzle, comprising a valve body (1) and a nozzle core (2) screwed onto the ejection end of the valve body (1), one end of the nozzle core (2) being located outside the valve body (1), and a nozzle (4) being provided on the outer end surface of the nozzle core (2), characterized in that: A limiting pressure ring (3) is provided in the valve body (1) at the inner end of the nozzle inner core (2), and the through hole of the limiting pressure ring (3) and the flow channel of the valve body (1) are on the same axis, and a bursting disc (5) for blocking the flow channel is covered between the limiting pressure ring (3) and the top end of the valve body (1).

2. The inverted valve atomizing nozzle according to claim 1, characterized in that: A freely rotatable cylindrical rotating core (9) is provided in the inner cylindrical cavity of the nozzle inner core (2), and the rotating core (9) is provided with a plurality of spiral channels communicating with the upper and lower ends of the nozzle (4).

3. The inverted valve atomizing nozzle according to claim 1, characterized in that: The threaded outer side of the nozzle inner core (2) is covered with an O-ring (6) which is clamped between the nozzle inner core (2) and the valve body (1).

4. The inverted valve atomizing nozzle according to claim 1, characterized in that: A flat sealing gasket (7) sleeved on the nozzle inner core (2) is provided between the inner edge of the outer retaining ring of the nozzle inner core (2) and the lower end of the valve body (1).

5. The inverted valve atomizing nozzle according to claim 1, characterized in that: The main body of the valve body (1) is cylindrical, and an external thread structure is provided on the periphery of the upper part, and a square plate-shaped structure is provided at the lower end that is integrated with the cylindrical main body.

6. The inverted valve atomizing nozzle according to claim 5, characterized in that: A square mounting back plate (8) is fixed below the square plate-shaped structure of the valve body (1) via fixing bolts (10), and a circular opening is opened at the center of the mounting back plate (8).

7. The inverted valve atomizing nozzle according to claim 1, characterized in that: The bursting disc (5) is a rubber bursting disc.

8. The inverted valve atomizing nozzle according to claim 1, characterized in that: The cone angle of the inner end spray cavity at the outlet of the nozzle (4) is greater than 120°, and the atomization angle at the outlet is greater than 80°.

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