Fire extinguishing sprayer

Abstract

The utility model discloses a fire extinguishing spray head which comprises a spray head body, a pore plate and a check ring are arranged on the inner side of the nozzle body; the nozzle body is divided into a first cavity and a second cavity; a plurality of first spray holes, second spray holes and third spray holes are formed in the second cavity of the spray head body; the first spray holes, the second spray holes and the third spray holes are formed in the whole curved surface or part of the curved surface of the spray head body in an array manner; the fire extinguishing agent impacts on the bottom face of the nozzle body through the pore plate and then fills the whole space of the second cavity of the nozzle body, and at the moment, the fire extinguishing agent can be sprayed out from the spraying holes according to the areas and the angles of the spraying holes. By designing the spray holes with different positions and different axial angles, the sprayed fire extinguishing agent can be quickly and uniformly distributed to a protection area, the coverage area and the atomization effect of the fire extinguishing agent are further increased, the concentration distribution of the fire extinguishing agent in the protection area is more balanced, and a fire can be extinguished in a shorter time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fire fighting equipment especially relates to a fire extinguishing nozzle. BACKGROUND

[0002] Most of the nozzles applied in the market adopt radial spraying fire extinguishing nozzles to protect the protection area, the nozzle installed in the pipe network adopts this structure, after starting to spray, the fire extinguishing agent spreads horizontally to all directions along the direction of the hole, and the upper part of the protection area is extinguished, for the middle and lower parts of the protection area, the fire extinguishing needs to wait for the fire extinguishing agent to spread from the upper part of the protection area, so that the concentration distribution of the fire extinguishing agent in the protection area is not balanced, the fire extinguishing effect cannot be consistent, and the fire extinguishing efficiency is low. SUMMARY

[0003] The utility model discloses a fire extinguishing nozzle which solves the problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fire extinguishing nozzle, comprising:

[0005] A nozzle body;

[0006] The inner side of the nozzle body is provided with a hole plate and a retaining ring; the nozzle body is divided into a first cavity and a second cavity;

[0007] A plurality of first spray holes, second spray holes and third spray holes are arranged on the second cavity of the nozzle body.

[0008] The first spray holes, the second spray holes and the third spray holes are arranged in an array on the entire curved surface or part of the curved surface of the nozzle body.

[0009] As a further description of the above technical scheme: the nozzle body is cylindrical, and the bottom end face is a plane.

[0010] As a further description of the above technical scheme: the diameter of the first spray hole is greater than or equal to that of the second spray hole and the third spray hole, the first spray hole is arranged above the second spray hole and the third spray hole; the second spray hole is arranged above the third spray hole, or is alternately arranged with the third spray hole on the same horizontal plane or slightly lower than the horizontal plane on which the second spray hole is arranged.

[0011] As a further description of the above technical scheme: the axial direction of the first spray hole is perpendicular to the axial direction of the nozzle body; the included angle between the axial direction of the second spray hole and the axial direction of the nozzle body is greater than the included angle between the axial direction of the third spray hole and the axial direction of the nozzle body, and the axial directions of the second spray hole and the third spray hole are the same as or opposite to the direction of the first cavity of the nozzle body.

[0012] As a further description of the above technical solution: the inner side of the nozzle body is provided with a first stepped groove, the first stepped groove is provided with a second stepped groove, the first stepped groove is matched with the hole plate, and the second stepped groove is matched with the blocking ring.

[0013] As a further description of the above technical solution: the diameter of the second stepped groove is greater than the inner diameter of the nozzle body, and the blocking ring is limited.

[0014] As a further description of the above technical solution: the hole plate is provided with a first through hole, the blocking ring is C-shaped, the two ends of the blocking ring are respectively provided with a second through hole, and the second through hole is coincided with the upper end surface of the hole plate.

[0015] As a further description of the above technical solution: the angle between the axial direction of the second nozzle hole and the axial direction of the nozzle body is 60°-65°, when the first nozzle hole, the second nozzle hole and the third nozzle hole are arranged on the whole curved surface of the nozzle body, the angle between the axial direction of the third nozzle hole and the axial direction of the nozzle body is 40°-45°.

[0016] As a further description of the above technical solution: when the first nozzle hole, the second nozzle hole and the third nozzle hole are arranged on part of the curved surface of the nozzle body, the angle between the axial direction of the third nozzle hole and the axial direction of the nozzle body is 45°-50°.

[0017] As a further description of the above technical solution: the diameter of the nozzle body is 10-50mm, the diameter of the hole plate is 5-48mm, the diameter of the first nozzle hole, the second nozzle hole and the third nozzle hole ranges from 3mm to 11mm, and the ratio of the diameter of the first nozzle hole, the second nozzle hole or the third nozzle hole to the diameter of the nozzle body is 20%-40%.

[0018] The above technical solution has the following advantages or beneficial effects:

[0019] After the fire extinguishing agent hits the bottom surface of the nozzle body through the hole plate, it fills the entire space of the second cavity of the nozzle body, at this time the fire extinguishing agent will be sprayed out of each nozzle hole according to the area and angle of the nozzle hole. The first nozzle hole is responsible for quickly filling the upper space of the protection area, the second nozzle hole is responsible for the middle space of the protection area, and the third nozzle hole is responsible for the lower space of the protection area, forming a three-dimensional coverage network in the protection area. By designing nozzle holes with different positions and different axial angles, the sprayed fire extinguishing agent can be quickly and uniformly distributed to the protection area, further increasing the coverage area and atomization effect of the fire extinguishing agent, making the concentration distribution of the fire extinguishing agent in the protection area more balanced, and extinguishing the fire in a shorter time. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1The utility model provides a perspective view of the 360 DEG downward fire extinguishing spray head;

[0021] Figure 2 The utility model provides a front view of the 360 DEG downward fire extinguishing spray head;

[0022] Figure 3 The utility model provides a bottom view of the 360 DEG downward fire extinguishing spray head;

[0023] Figure 4 The utility model provides a plan view of the 360 DEG downward fire extinguishing spray head;

[0024] Figure 5 For Figure 4 The section view of A in middle;

[0025] Figure 6 The utility model provides a perspective view of the 180 DEG downward fire extinguishing spray head;

[0026] Figure 7 The utility model provides a side view of the 180 DEG downward fire extinguishing spray head;

[0027] Figure 8 The utility model provides a perspective view of the 360 DEG upright fire extinguishing spray head;

[0028] Figure 9 The utility model provides a perspective view of the 180 DEG upright fire extinguishing spray head.

[0029] Legend:

[0030] 1, spray head body, 11, first spray hole, 12, second spray hole, 13, third spray hole, 14, first stepped groove, 15, second stepped groove, 2, aperture plate, 21, first through hole, 3, baffle ring, 31, second through hole. Specific implementation

[0031] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts all belong to the range of protection of the utility model.

[0032] Refer to Figures 1-7The utility model provides an embodiment: a fire extinguishing nozzle, include: nozzle body 1, the inside of nozzle body 1 is provided with orifice plate 2 and baffle ring 3, make nozzle body 1 divide into first cavity and second cavity, nozzle body 1 on the second cavity is provided with a plurality of first spray hole 11, second spray hole 12 and third spray hole 13, a plurality of first spray hole 11, second spray hole 12 and third spray hole 13 are arrayed and set at all curved surfaces or partial curved surfaces of nozzle body 1, nozzle body 1 is cylindrical, and the bottom end face is plane.

[0033] In the embodiment, the fire extinguishing nozzle is a downward type nozzle, the extinguishing agent enters the nozzle from top to bottom, and the nozzle is suitable for the scene where the pipe network is arranged higher than the nozzle. The nozzle body 1 is divided into a first cavity and a second cavity by the orifice plate 2 and the baffle ring 3, the first cavity is connected with an external device (not shown in the figure), and the extinguishing agent enters the second cavity through the baffle ring 3 and the orifice plate 2. After the extinguishing agent hits the bottom surface of the nozzle body 1 through the orifice plate 2, the extinguishing agent fills the entire space of the second cavity of the nozzle body 1. At this time, the extinguishing agent will be sprayed out of each spray hole according to the area and angle of the spray hole. The first spray hole is responsible for quickly filling the upper space of the protection area, the second spray hole is responsible for the middle space of the protection area, and the third spray hole is responsible for the lower space of the protection area, forming a three-dimensional coverage network in the protection area. By designing spray holes with different positions and different axial angles, the sprayed extinguishing agent can be quickly and uniformly distributed to the protection area, further increasing the coverage area and atomization effect of the extinguishing agent, making the extinguishing agent concentration distribution in the protection area more balanced, and being able to extinguish the fire in a shorter time. The spray hole includes the first spray hole 11, the second spray hole 12 and the third spray hole 13, which are arrayed and arranged at the curved surface of the second cavity. The distribution area of the entire curved surface is 360° or the distribution area of the partial curved surface is 180°, which can realize circular spraying and fan-shaped spraying. According to different positions of the fire extinguishing nozzle, corresponding spray hole distribution areas are selected.

[0034] The diameter of the first spray hole 11 is greater than or equal to that of the second spray hole 12 and the third spray hole 13, and the first spray hole 11 is arranged above the second spray hole 12 and the third spray hole 13. The second spray hole 12 is arranged above the third spray hole 13 or alternately arranged on the same horizontal plane with the third spray hole 13. The axial direction of the first spray hole 11 is perpendicular to the axial direction of the nozzle body 1. The axial direction of the second spray hole 12 forms an angle greater than the axial direction of the third spray hole 13 with the axial direction of the nozzle body 1, and the axial directions of the second spray hole 12 and the third spray hole 13 are opposite to the direction of the first cavity of the nozzle body 1. The first cavity of the downward type nozzle is above the second cavity.

[0035] The angle between the axial direction of the second spray hole 12 and the axial direction of the nozzle body 1 is 60°-65°. When the first spray hole 11, the second spray hole 12 and the third spray hole 13 are arranged on the entire curved surface of the nozzle body 1, the angle between the axial direction of the third spray hole 13 and the axial direction of the nozzle body 1 is 40°-45°.

[0036] When the first, second and third spray holes 11, 12 and 13 are arranged on the partial curved surface of the nozzle body 1, the angle between the axis of the third spray hole 13 and the axis of the nozzle body 1 is 45-50°.

[0037] In the embodiment, the first spray hole 11 is arranged on the side close to the hole plate 2. When extinguishing fire, the extinguishing agent is sprayed out through the first, second and third spray holes 11, 12 and 13, respectively responsible for extinguishing fire in the upper, middle and lower parts of the high protection area. The diameter of the first spray hole 11 is greater than or equal to that of the second and third spray holes 12 and 13, so as to ensure that a sufficient amount of extinguishing agent can be sprayed out in the upper space, and after settling, the extinguishing agent can extinguish the fire in the middle and lower parts together with the extinguishing agent sprayed out by the middle and lower spray holes. When the second and third spray holes 12 and 13 are arranged alternately on the same horizontal plane, they are responsible for extinguishing fire in the upper, middle and lower parts of the low protection area.

[0038] The inner side of the nozzle body 1 is provided with a first stepped groove 14, and the first stepped groove 14 is provided with a second stepped groove 15. The first stepped groove 14 cooperates with the hole plate 2, and the second stepped groove 15 cooperates with the retaining ring 3. The diameter of the second stepped groove 15 is greater than the inner diameter of the nozzle body 1, so as to limit the retaining ring 3.

[0039] In the embodiment, the hole plate 2 is arranged on the first stepped groove 14, the outer diameter of the hole plate 2 is arranged in a small gap with the inner diameter of the first stepped groove 14, and the bottom surface of the hole plate 2 is in contact with the end surface of the first stepped groove 14. The retaining ring 3 is arranged at the second stepped groove 15, the lower end surface is in contact with the upper end surface of the hole plate 2, and the upper end surface of the retaining ring 3 is in contact with the upper end surface of the second stepped groove 15, so as to limit the hole plate 2.

[0040] Specifically, the hole plate 2 is provided with a first through hole 21, and the retaining ring 3 is in the shape of C. The two ends of the retaining ring 3 are respectively provided with a second through hole 31, and the second through hole 31 is coincided with the upper end surface of the hole plate 2.

[0041] In the embodiment, the retaining ring 3 is in the shape of C and can be deformed. When installing, the two ends of the second through hole 31 are clamped and extruded inwards to deform, so that the diameter of the retaining ring 3 is reduced and placed in the second stepped groove 15. When the second through hole 31 is released, it is restored and cooperates with the second stepped groove 15 to limit the position of the hole plate 2.

[0042] Specifically, the diameter of the nozzle body 1 is 10-50mm, the diameter of the hole plate 2 is 5-48mm, the diameter of the first, second and third spray holes 11, 12 and 13 is 3-11mm, and the ratio of the diameter of the first, second or third spray hole 11, 12 or 13 to the diameter of the nozzle body 1 is 20%-40%.

[0043] In the embodiment, the aperture of the spray hole is positively correlated with the diameter of the spray head body 1, and the inner hole size of the hole plate 2 is designed according to the amount of the fire extinguishing agent, the spray pressure and the spray time, and can be applied to class A, class B and class C fires, and the specific data is shown in Table 1:

[0044]

[0045]

[0046] Table 1

[0047] After the fire extinguishing agent impacts on the bottom surface of the spray head body 1 through the hole plate 2, the fire extinguishing agent fills the entire space of the second cavity of the spray head body 1, and at this time, the fire extinguishing agent is sprayed from each spray hole according to the area of the spray hole and the angle of the spray hole. The first spray hole is responsible for filling the upper space of the protection area quickly, the second spray hole is responsible for the middle space of the protection area, and the third spray hole is responsible for the lower space of the protection area, thereby forming a three-dimensional coverage network in the protection area. By designing spray holes with different positions and different axial angles, the sprayed fire extinguishing agent can be quickly and uniformly distributed to the protection area, further enhancing the coverage area and atomization effect of the fire extinguishing agent, making the concentration distribution of the fire extinguishing agent in the protection area more balanced, and enabling the fire to be extinguished in a shorter time. The spray hole includes a first spray hole 11, a second spray hole 12 and a third spray hole 13, and is arranged at the curved surface of the second cavity, and the distribution area of the entire curved surface is 360° or the distribution area of the partial curved surface is 180°, so that circular spraying and fan-shaped spraying can be realized, and corresponding spray hole distribution areas are selected according to different positions of the fire extinguishing spray head.

[0048] Embodiment 2

[0049] Referring to Figures 8-9 Another embodiment of the utility model provides a fire extinguishing spray head, including: spray head body 1, the inside of spray head body 1 is provided with hole plate 2 and baffle 3, make spray head body 1 divide into first cavity and second cavity, the second cavity of spray head body 1 is provided with a plurality of first spray hole 11, second spray hole 12 and third spray hole 13, a plurality of first spray hole 11, second spray hole 12 and third spray hole 13 are arranged in the whole curved surface or partial curved surface of spray head body 1, spray head body 1 is cylindrical, and the top end face is a plane.

[0050] In the embodiment, the fire extinguishing nozzle is a vertical nozzle, the axes of the second and third spray holes 12 and 13 are parallel to the first cavity direction of the nozzle body 1, the fire extinguishing agent enters the nozzle from bottom to top, and the vertical nozzle is suitable for a scenario where the pipe network arrangement height is lower than the nozzle. The first cavity of the vertical nozzle is below the second cavity, the fire extinguishing agent is delivered through the orifice plate 2, impacts on the top surface of the nozzle body 1, fills the entire space of the second cavity of the nozzle body 1, and is sprayed downward to the protected area through the spray holes. The angle between the axis of the second spray hole 12 and the axis of the nozzle body 1 is 60-65°. When the first, second and third spray holes 11, 12 and 13 are arranged on the entire curved surface of the nozzle body 1, the angle between the axis of the third spray hole 13 and the axis of the nozzle body 1 is 40-45°.

[0051] When the first, second and third spray holes 11, 12 and 13 are arranged on the partial curved surface of the nozzle body 1, the angle between the axis of the third spray hole 13 and the axis of the nozzle body 1 is 45-50°.

[0052] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A fire suppression sprinkler characterized by, The utility model provides a nozzle body (1); The inner side of the nozzle body (1) is provided with a hole plate (2) and a check ring (3);The nozzle body (1) is divided into a first cavity and a second cavity; The second cavity of the nozzle body (1) is provided with a plurality of first spray holes (11), second spray holes (12) and third spray holes (13); A plurality of first spray holes (11), second spray holes (12) and third spray holes (13) are arranged in an array on the entire curved surface or part of the curved surface of the nozzle body (1). The nozzle body (1) is cylindrical, and the bottom end face is planar.

2. The fire suppression sprinkler head of claim 1, wherein: The diameter of the first spray hole (11) is greater than or equal to that of the second spray hole (12) and the third spray hole (13), the first spray hole (11) is arranged above the second spray hole (12) and the third spray hole (13), the second spray hole (12) is arranged above the third spray hole (13), or is arranged alternately with the third spray hole (13) on the same horizontal plane inside the cavity or slightly lower than the horizontal plane on which the second spray hole is arranged.

3. The fire suppression sprinkler head of claim 1, wherein: The axial direction of the first spray hole (11) is perpendicular to the axial direction of the nozzle body (1), the axial direction of the second spray hole (12) forms an angle greater than that of the third spray hole (13) with the axial direction of the nozzle body (1), and the axial directions of the second spray hole (12) and the third spray hole (13) are the same as or opposite to the direction of the first cavity of the nozzle body (1).

4. The fire suppression sprinkler head of claim 1, wherein: The inner side of the nozzle body (1) is provided with a first stepped groove (14), the first stepped groove (14) is provided with a second stepped groove (15), the first stepped groove (14) cooperates with the hole plate (2), and the second stepped groove (15) cooperates with the check ring (3).

5. The fire suppression sprinkler head of claim 1, wherein: The diameter of the second stepped groove (15) is greater than the inner diameter of the nozzle body (1), and the check ring (3) is limited.

6. The fire suppression sprinkler head of claim 5, wherein: The hole plate (2) is provided with a first through hole (21), the check ring (3) is C-shaped, the two ends of the check ring (3) are respectively provided with a second through hole (31), and the second through hole (31) is coincident with the upper end face of the hole plate (2).

7. The fire suppression sprinkler head of claim 1, wherein: The angle between the axial direction of the second spray hole (12) and the axial direction of the nozzle body (1) is 60-65°, when the first spray hole (11), the second spray hole (12) and the third spray hole (13) are arranged on the entire curved surface of the nozzle body (1), the angle between the axial direction of the third spray hole (13) and the axial direction of the nozzle body (1) is 40-45°.

8. The fire suppression sprinkler head of claim 1, wherein: When the first spray hole (11), the second spray hole (12) and the third spray hole (13) are arranged on part of the curved surface of the nozzle body (1), the angle between the axial direction of the third spray hole (13) and the axial direction of the nozzle body (1) is 45-50°.

9. The fire suppression sprinkler head of claim 1, wherein: ​ 10. The fire suppression sprinkler head of claim 1, wherein: The diameter of the nozzle body (1) is 10-50 mm, the diameter of the orifice plate (2) is 5-48 mm, the diameter of the first nozzle hole (11), the second nozzle hole (12) and the third nozzle hole (13) ranges from 3-11 mm, and the ratio of the diameter of the first nozzle hole (11), the second nozzle hole (12) or the third nozzle hole (13) to the diameter of the nozzle body (1) is 20%-40%.

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