CN218420781U - Fire extinguishing nozzle and fire extinguishing equipment with same - Google Patents

Abstract

The utility model provides a fire extinguishing nozzle and fire extinguishing equipment with same. The fire extinguishing nozzle comprises a nozzle body, a first mounting hole, a second mounting hole and a liquid inlet; the mounting frame is arranged on the spray head body and surrounds the spray head body to form a mounting cavity; the temperature sensing structure is arranged in the mounting cavity; the valve core is arranged in the first mounting hole to block or avoid the liquid inlet; the two ends of the valve core are respectively abutted with the temperature sensing structure and the elastic structure; the atomizing nozzle comprises a shell and a core body, wherein the outer surface of the core body is provided with a plurality of inclined concave parts, and a mist outlet channel is formed between each inclined concave part and the inner surface of the shell; when the surface temperature of the temperature sensing structure is larger than or equal to the preset temperature value, the temperature sensing structure bursts, the elastic structure pushes the valve core to move towards the direction far away from the liquid inlet and avoid the liquid inlet, and the fire extinguishing agent is discharged through the liquid inlet, the first mounting hole, the second mounting hole and the mist outlet channel in sequence. The utility model provides a relatively poor problem of fire extinguishing effect of shower nozzle of putting out a fire among the prior art.

Description

Fire extinguishing nozzle and fire extinguishing equipment with same

Technical Field

The utility model relates to a shower nozzle technical field puts out a fire particularly, relates to a shower nozzle and have its fire-extinguishing apparatus put out a fire.

Background

At present, a nozzle is used as one of key components of a gas fire extinguishing device, plays important roles of controlling the release flow and the spraying time of a fire extinguishing agent, determining the tail end pressure of the gas fire extinguishing system, determining the distribution uniformity of the fire extinguishing agent in a protection space and the like in the design of the gas fire extinguishing system, and directly influences the fire extinguishing effectiveness.

In the prior art, a gas fire extinguishing system comprises an open system and a closed system, wherein the open system usually adopts an open fire extinguishing nozzle, namely, the tail end of a pipeline of the open system and the interior of the nozzle are not filled with a fire extinguishing agent at ordinary times, a nozzle of the nozzle is directly communicated with the atmosphere, and when fire extinguishing starts, the fire extinguishing agent is released from a pressure storage tank and enters a pipeline, and is finally directly sprayed out from the nozzle; closed systems are usually replaced by non-dedicated gas extinguishing nozzles, such as closed sprinklers or closed water mist sprinklers, or simply modified on the basis of sprinklers.

However, the above-mentioned mode of using non-dedicated gas to extinguish the back nozzle replacement leads to the fire extinguishing agent to be in the form of liquid flow or in the state of large liquid droplet after spouting, needs to (evaporate) and gasify in the ambient air, can't satisfy the injection time, is difficult to establish effective fire extinguishing concentration in the protected space fast, influences fire extinguishing effect and fire extinguishing efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a fire extinguishing nozzle and have its fire-extinguishing apparatus to solve the relatively poor problem of fire extinguishing effect of fire extinguishing nozzle among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a fire sprinkler head, including: the spray head body is provided with a first mounting hole, a second mounting hole and a liquid inlet, and the liquid inlet is communicated with the second mounting hole through the first mounting hole; the mounting frame is arranged on the spray head body and surrounds the spray head body to form a mounting cavity; the temperature sensing structure is arranged in the mounting cavity; the valve core is movably arranged in the first mounting hole so as to plug or avoid the liquid inlet; the elastic structure is arranged in the first mounting hole, two ends of the valve core are respectively abutted against the temperature sensing structure and the elastic structure, and the elastic structure is used for applying elastic force to the valve core, wherein the elastic force moves towards one side far away from the liquid inlet; the atomizing nozzle is arranged in the second mounting hole and comprises a shell and a core body, the core body is arranged in the shell, the outer surface of the core body is provided with a plurality of inclined concave parts, a mist outlet channel is formed between each inclined concave part and the inner surface of the shell, and the mist outlet channel is communicated with the second mounting hole; when the surface temperature of the temperature sensing structure is greater than or equal to a preset temperature value, the temperature sensing structure bursts to push the valve core to move towards the direction far away from the liquid inlet through the elastic structure and avoid the liquid inlet, and the fire extinguishing agent is discharged through the liquid inlet, the first mounting hole, the second mounting hole and the mist outlet channel in sequence.

Further, a plurality of inclined recesses are provided at intervals in the circumferential direction and/or the axial direction of the core; wherein, both ends of each inclined concave part extend to both ends of the core body respectively.

Further, the inclined recess is an inclined groove or a spiral groove.

Furthermore, the second mounting holes are multiple, a plurality of second mounting holes Kong Raodi are circumferentially arranged at intervals, an included angle A is formed between the central axis of each second mounting hole and the central axis of the first mounting hole, and the included angle A is larger than 0 and smaller than 90 degrees.

Further, the housing has a third mounting hole, the third mounting hole including: the core body is arranged in the first hole section, and a mist outlet channel is formed between each inclined concave part and the inner surface of the first hole section; a tapered hole; the first hole section is communicated with the second hole section through a conical hole; the inner diameter of the tapered bore decreases in the direction from the first bore section to the second bore section.

Further, the outer surface of the shell is provided with external threads, the inner surface of the second mounting hole is provided with internal threads, and the internal threads are in threaded fit with the external threads so as to connect the atomizing nozzle and the nozzle body.

Further, the fire-extinguishing nozzle further comprises: the first sealing structure is arranged between the shell and the second mounting hole; and/or the second sealing structure is arranged between the sprayer body and the mounting frame.

Furthermore, the surface of the valve core facing the temperature sensing structure is provided with a limit concave part, and at least part of the temperature sensing structure extends into the limit concave part and is limited and stopped by the limit concave part.

Further, the first mounting hole includes: a third bore section; a limiting step is formed between the fourth hole section and the third hole section, the elastic structure is arranged in the fourth hole section, and the limiting step is used for limiting and stopping the elastic structure; the third hole section is communicated with the fourth hole section through a fourth hole section, and the aperture of the fourth hole section is larger than that of the fourth hole section and is communicated with the second mounting hole; wherein, the one end that the fourth hole section is kept away from to the third hole section is the inlet, and case movably sets up in fifth hole section and at least partial fourth hole section.

According to another aspect of the utility model, a fire extinguishing apparatus is provided, including foretell fire extinguishing nozzle.

Use the technical scheme of the utility model, the shower nozzle of putting out a fire includes atomizer, and atomizer sets up in the second mounting hole of shower nozzle body, and atomizer includes casing and core, and the core setting is in the casing, and the surface of core has a plurality of slope concave parts, forms out the fog passageway between the internal surface of each slope concave part and casing, goes out fog passageway and second mounting hole intercommunication. The atomizing nozzle is used for atomizing and gasifying the fire extinguishing agent entering the atomizing nozzle, so that the fire extinguishing nozzle directly sprays the atomized and gasified fire extinguishing agent without evaporation in ambient air. Like this, when the surface temperature of temperature sensing structure is greater than or equal to preset temperature value, judge conflagration breaing and temperature sensing structure bursts, the elastic construction promotes the valve core and moves and dodge the inlet towards the direction of keeping away from the inlet this moment, and the fire extinguishing agent loops through the inlet, first mounting hole, second mounting hole and goes out fog passageway atomizing, discharge after the gasification, and then shortened to put out a fire consuming time, has solved the relatively poor problem of the fire control effect of the shower nozzle of putting out a fire among the prior art, has promoted the fire extinguishing efficiency of the shower nozzle of putting out a fire.

Compare with the fine water smoke nozzle structure of closed that uses on the gaseous extinguishing device among the prior art, the shower nozzle flow coefficient of the shower nozzle of putting out a fire in this application is bigger, is suitable for extinguishing device jet flow and injection time requirement, also has atomizing function simultaneously and makes the fire extinguishing agent can spray with the droplet form under well low pressure and put, in addition, the general size of fine water smoke nozzle is great among the prior art, and the compact structure size of the shower nozzle of putting out a fire in this application is littleer, is suitable for small-size extinguishing device equipment cooperation.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a cross-sectional view of an embodiment of a fire suppression sprinkler head according to the present disclosure;

FIG. 2 shows a cross-sectional view of the atomizing spray head of the fire suppression spray head of FIG. 1;

fig. 3 shows a cross-sectional view in another plane of the atomizer head of fig. 2.

Wherein the figures include the following reference numerals:

10. a nozzle body; 11. a first mounting hole; 111. a third bore section; 112. a fourth bore section; 113. a fifth bore section; 12. a second mounting hole; 13. a liquid inlet; 20. a mounting frame; 30. a temperature sensing structure; 40. a valve core; 50. an elastic structure; 60. an atomizing spray head; 61. a housing; 611. a first bore section; 612. a tapered hole; 613. a second bore section; 62. a core body; 621. an inclined recess; 63. a mist outlet channel; 70. a first seal structure; 80. a second seal structure; 90. a third seal structure; 100. and a fourth seal structure.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.

In order to solve the relatively poor problem of the fire extinguishing effect of the fire extinguishing nozzle in the prior art, the application provides a fire extinguishing nozzle and fire extinguishing equipment with the same.

As shown in fig. 1 to 3, the fire sprinkler includes a sprinkler body 10, a mounting frame 20, a temperature sensing structure 30, a valve core 40, an elastic structure 50 and an atomizing sprinkler 60. The nozzle body 10 has a first mounting hole 11, a second mounting hole 12 and a liquid inlet 13, and the liquid inlet 13 is communicated with the second mounting hole 12 through the first mounting hole 11. The mounting bracket 20 is disposed on the spray head body 10 and forms a mounting cavity with the spray head body 10. The temperature sensing structure 30 is disposed within the mounting cavity. The valve core 40 is movably arranged in the first mounting hole 11 to block or avoid the liquid inlet 13. The elastic structure 50 is disposed in the first mounting hole 11, two ends of the valve core 40 are respectively abutted against the temperature sensing structure 30 and the elastic structure 50, and the elastic structure 50 is used for applying an elastic force to the valve core 40, wherein the elastic force moves towards one side away from the liquid inlet 13. The atomizer 60 is disposed in the second mounting hole 12, the atomizer 60 includes a housing 61 and a wick 62, the wick 62 is disposed in the housing 61, an outer surface of the wick 62 has a plurality of inclined recesses 621, a mist outlet passage 63 is formed between each inclined recess 621 and an inner surface of the housing 61, and the mist outlet passage 63 communicates with the second mounting hole 12. When the surface temperature of the temperature sensing structure 30 is greater than or equal to the preset temperature value, the temperature sensing structure 30 bursts to push the valve core 40 to move in the direction away from the liquid inlet 13 through the elastic structure 50 and to avoid the liquid inlet 13, and the fire extinguishing agent is discharged through the liquid inlet 13, the first mounting hole 11, the second mounting hole 12 and the mist outlet channel 63 in sequence.

By applying the technical solution of the embodiment, the fire nozzle comprises the atomizer 60, the atomizer 60 is arranged in the second mounting hole 12 of the nozzle body 10, the atomizer 60 comprises a housing 61 and a core 62, the core 62 is arranged in the housing 61, the outer surface of the core 62 has a plurality of inclined recesses 621, a mist outlet channel 63 is formed between each inclined recess 621 and the inner surface of the housing 61, and the mist outlet channel 63 is communicated with the second mounting hole 12. The atomizer 60 is used to atomize and gasify the fire extinguishing agent entering the atomizer, so that the fire extinguishing nozzle directly sprays the atomized and gasified fire extinguishing agent without evaporation in the ambient air. Like this, when the surface temperature of temperature sensing structure 30 is greater than or equal to the preset temperature value, judge that conflagration breaing and temperature sensing structure 30 bursts, elastic construction 50 promotes case 40 and moves and dodge inlet 13 towards the direction of keeping away from inlet 13 this moment, the fire extinguishing agent loops through inlet 13, first mounting hole 11, second mounting hole 12 and play fog passageway 63 atomize, discharge after the gasification, and then it is consuming time to have shortened putting out a fire, the relatively poor problem of the fire control effect of the shower nozzle of putting out a fire among the prior art has been solved, the fire extinguishing efficiency of the shower nozzle of putting out a fire has been promoted.

Compared with the structure of the closed fine water mist spray head used on the gas fire extinguishing device in the prior art, the spray head flow coefficient of the fire extinguishing spray head in the embodiment is larger, the spray head is suitable for the requirements of the spray flow and the spray time of the fire extinguishing device, and meanwhile, the atomization function is also provided, so that the fire extinguishing agent can be sprayed in a mist droplet form under the medium and low pressure.

In the present embodiment, the temperature sensing structure 30 is a temperature sensing glass ball.

In this embodiment, the shower nozzle of putting out a fire adopts closed shower nozzle structure, has the atomizing function and realizes quick release simultaneously, and compact structure, small and exquisite, both had been applicable to the gaseous fire extinguishing apparatus of haloalkane, also was applicable to closed water smoke fire extinguishing apparatus.

In the present embodiment, the outer surface of the mounting bracket 20 has external threads, and the inner surface of the showerhead body 10 has internal threads, which are screw-engaged with the external threads to connect the mounting bracket 20 and the showerhead body 10. Like this, the aforesaid sets up the dismantlement of having realized shower nozzle body 10 and mounting bracket 20 and is connected to make the dismouting of shower nozzle of putting out a fire easier, simple and convenient, reduced staff's the operation degree of difficulty.

Specifically, when the mounting bracket 20 needs to be installed in the nozzle body 10, the mounting bracket 20 is screwed in a clockwise or counterclockwise direction, so that the mounting bracket 20 is screwed into the nozzle body 10 until the installation is completed; when it is necessary to remove the mounting bracket 20 from the head body 10, the mounting bracket 20 is screwed in a counterclockwise or clockwise direction so that the mounting bracket 20 is unscrewed from the head body 10 until they are separated.

Optionally, a plurality of inclined recesses 621 are provided at intervals in the circumferential and/or axial direction of the core 62; both ends of each inclined recess 621 extend to both ends of core 62. Like this, above-mentioned setting makes a plurality of inclined concave part 621 arrange the mode more diversified, nimble to satisfy different user demand and operating mode, also promoted staff's processing flexibility. At the same time, the above arrangement ensures that the fire extinguishing agent is smoothly discharged through the mist outlet passage 63, thereby preventing the occurrence of clogging in the atomizer 60 and affecting the normal use and fire extinguishing efficiency of the sprinkler.

In the present embodiment, the plurality of inclined recesses 621 are disposed at intervals along the circumferential direction of the core 62, so that the core 62 has a simpler structure, is easy to process and implement, and reduces the processing cost of the fire extinguishing nozzle.

Alternatively, the inclined recess 621 is an inclined groove or a spiral groove. Like this, above-mentioned setting makes inclined concave part 621's structure more diversified, nimble to satisfy different user demand and operating mode, also promoted staff's processing flexibility. Simultaneously, above-mentioned setting has increased the route of fire extinguishing agent in a fog passageway 63 to carry out atomizing, gasification fully to the fire extinguishing agent, further promoted the fire extinguishing efficiency of fire extinguishing nozzle.

Optionally, the second mounting holes 12 are multiple, the multiple second mounting holes 12 are circumferentially spaced around the first mounting hole 11, and an included angle a is formed between a central axis of each second mounting hole 12 and a central axis of the first mounting hole 11, where the included angle a is greater than 0 and smaller than 90 °. Like this, atomizer 60 is a plurality of, and a plurality of atomizer 60 set up with a plurality of second mounting holes 12 one-to-one, and then has increased the fire extinguishing agent injection amount and the spray regime of the shower nozzle of putting out a fire to put out a fire fast to the ignition, promoted fire extinguishing apparatus's fire extinguishing efficiency. Meanwhile, the fire extinguishing nozzles spray fire extinguishing agents in different directions by the aid of the arrangement, so that fire is extinguished at fire points in different directions.

Optionally, the outer side surface of the shoulder of the nozzle body 10 is conical, and 3 to 6 second mounting holes 12 are uniformly formed around the side surface of the cone.

As shown in fig. 2, the housing 61 has a third mounting hole including a first hole section 611, a tapered hole 612, and a second hole section 613. Wherein the core 62 is disposed in the first hole section 611, and the mist outlet passage 63 is formed between each inclined recess 621 and the inner surface of the first hole section 611. First bore section 611 communicates with second bore section 613 through tapered bore 612. The inner diameter of tapered bore 612 decreases in a direction from first bore section 611 to second bore section 613. Thus, since the cross-sectional area of the first hole segment 611 is larger than that of the second hole segment 613, the flow rate of the fire extinguishing agent at the second hole segment 613 is increased, and on one hand, the fire extinguishing agent is sufficiently atomized and gasified; on the other hand, the flow rate of the fire extinguishing agent is increased, so that the fire extinguishing nozzle can quickly extinguish fire.

In this embodiment, the first hole segment 611 and the second hole segment 613 are both circular holes, and the central axes of the first hole segment 611 and the second hole segment 613 are coaxially disposed.

In the present embodiment, the outer surface of the housing 61 has an external thread, and the inner surface of the second mounting hole 12 has an internal thread, which is screw-engaged with the external thread to connect the atomizer head 60 and the head body 10. Like this, the aforesaid setting has realized the connection of dismantling of shower nozzle body 10 and atomizer 60 to make the change and the maintenance of atomizer 60 easier, simple and convenient, reduced staff's the operation degree of difficulty.

Specifically, when the atomizer 60 needs to be installed in the nozzle body 10, the atomizer 60 is screwed in a clockwise or counterclockwise direction, so that the atomizer 60 is screwed into the second mounting hole 12 until the installation is completed; when it is necessary to detach the atomizer head 60 from the head body 10, the atomizer head 60 is screwed in a counterclockwise or clockwise direction so that the atomizer head 60 is unscrewed from the second mounting hole 12 until they are separated. The length of the atomizer 60 extending into the second mounting hole 12 can be adjusted by adjusting the length of the threaded fit between the housing 61 and the second mounting hole 12, so as to adjust the spraying distance of the atomizer 60.

Optionally, the fire suppression sprinkler further comprises a first sealing structure 70, the first sealing structure 70 being disposed between the housing 61 and the second mounting hole 12; and/or, the fire sprinkler further includes a second sealing structure 80, and the second sealing structure 80 is disposed between the sprinkler body 10 and the mounting bracket 20. Therefore, the joint of the shell 61 and the second mounting hole 12 is sealed through the first sealing structure 70, so that the fire extinguishing efficiency of the fire extinguishing nozzle is prevented from being influenced due to the leakage of the fire extinguishing agent; and/or the joint of the nozzle body 10 and the mounting frame 20 is sealed by the second sealing structure 80, so as to avoid the fire extinguishing agent leakage from affecting the fire extinguishing efficiency of the fire extinguishing nozzle. Optionally, the first seal structure 70 is a gasket.

Optionally, the second seal structure 80 is a gasket.

In the present embodiment, the surface of the valve core 40 facing the temperature sensing structure 30 has a limit recess, and at least a portion of the temperature sensing structure 30 extends into the limit recess and is limited and stopped by the limit recess. Thus, the limiting concave part positions the temperature sensing structure 30 to prevent the temperature sensing structure 30 from shaking or moving to influence the structural stability of the fire extinguishing nozzle.

Specifically, the limiting recess is fitted to at least a part of the outer end surface of the temperature sensing structure 30.

As shown in fig. 1, the first mounting hole 11 includes a third hole section 111, a fourth hole section 112, and a fifth hole section 113. A limiting step is formed between the fourth hole section 112 and the third hole section 111, the elastic structure 50 is arranged in the fourth hole section 112, and the limiting step is used for limiting and stopping the elastic structure 50. The third hole section 111 communicates with a fifth hole section 113 through a fourth hole section 112, and the fifth hole section 113 has a larger aperture than the fourth hole section 112 and communicates with the second mounting hole 12. Wherein, one end of the third hole section 111 far away from the fourth hole section 112 is a liquid inlet 13, and the valve core 40 is movably arranged in the fifth hole section 113 and at least a part of the fourth hole section 112. Thus, the cross-sectional area of the fifth hole section 113 is larger than that of the third hole section 111, so that the fire extinguishing agent is prevented from being blocked in the fire extinguishing nozzle to affect the normal use of the fire extinguishing nozzle, and the fire extinguishing agent can smoothly flow in the fire extinguishing nozzle.

Optionally, the resilient structure 50 is a spring. Specifically, one end of the spring abuts against the limit step limit stop, and the other end of the spring abuts against the valve core 40.

In this embodiment, the third hole section 111 is a constant diameter hole, so as to increase the spraying flow of the fire-extinguishing nozzle, and the fire-extinguishing agent can be sprayed quickly.

In this embodiment, the mounting frame 20 is a door-shaped frame, and the inner top surface of the door-shaped frame has a groove for mounting and fixing the temperature sensing glass ball.

As shown in fig. 1, the valve core 40 has a cylindrical structure, the upper portion of the valve core 40 has a first annular groove in which the third seal structure 90 is disposed, and the lower portion of the valve core 40 has a second annular groove for mounting the fourth seal structure 100. In this way, the third seal structure 90 serves to seal the mating portion of the valve core 40 and the mounting bracket 20, and the fourth seal structure 100 serves to seal the inner circumferential surfaces of the valve core 40 and the fourth bore section 112.

Optionally, the third seal structure 90 is a gasket.

Optionally, the fourth seal structure 100 is a seal ring.

Optionally, the nozzle body 10 and the valve core 40 are made of stainless steel 304, stainless steel 316, and the like, so as to have good compatibility and corrosion resistance to water and halogenated alkane extinguishing agents such as perfluorohexanone and the like.

Specifically, after the fire extinguishing nozzle is assembled, the upper portion of the temperature sensing structure 30 is fixed by the mounting frame 20, the lower end of the temperature sensing structure 30 is embedded into the limiting concave portion of the valve core 40 and abuts against the valve core 40, the lower portion of the valve core 40 compresses the elastic structure 50 and extends into a part of the first mounting hole 11 to block the liquid inlet 13 in a plunger manner, so that the pressure in a pipeline connected with the fire extinguishing nozzle is borne, and the fire extinguishing agent is prevented from leaking. Thus, in a typical fire scene, the temperature sensing structure 30 located at the front end of the fire extinguishing nozzle is broken by itself after being heated to a certain temperature, the temperature sensing structure 30 loses the supporting capability, the valve core 40 overcomes the friction and moves upwards under the resultant force action of the pressure in the pipeline connected with the fire extinguishing nozzle and the thrust of the elastic structure 50, when the bottom end face of the valve core 40 is lifted to leave the liquid inlet 13, the liquid inlet 13 is communicated with the first mounting hole 11 and the second mounting hole 12 and further communicated with the atomizing nozzles 60, and therefore the fire extinguishing agent is sprayed out from the atomizing nozzles 60.

The application also provides a fire fighting device (not shown) comprising a fire fighting nozzle as described above.

Specifically, the fire extinguishing equipment further comprises a connecting pipeline, and the connecting pipeline is clamped with the fire extinguishing spray head, or is in threaded connection with the fire extinguishing spray head, or is connected with the fire extinguishing spray head through a fastener.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

the fire extinguishing nozzle comprises an atomizing nozzle body, the atomizing nozzle body is arranged in the second mounting hole of the nozzle body, the atomizing nozzle body comprises a shell and a core body, the core body is arranged in the shell, the outer surface of the core body is provided with a plurality of inclined concave parts, a mist outlet channel is formed between each inclined concave part and the inner surface of the shell body, and the mist outlet channel is communicated with the second mounting hole. The atomizing nozzle is used for atomizing and gasifying the fire extinguishing agent entering the atomizing nozzle, so that the fire extinguishing nozzle directly sprays the atomized and gasified fire extinguishing agent without evaporation in ambient air. Like this, when the surface temperature of temperature sensing structure is greater than or equal to preset temperature value, judge that conflagration and temperature sensing structure burst, elastic construction promotes the valve core and moves and dodge the inlet towards the direction of keeping away from the inlet this moment, and the fire extinguishing agent loops through inlet, first mounting hole, second mounting hole and goes out fog passageway atomizing, discharges after the gasification, and then shortened and put out a fire consuming time, has solved the relatively poor problem of the fire control effect of the shower nozzle of putting out a fire among the prior art, has promoted the fire extinguishing efficiency of the shower nozzle of putting out a fire.

Compare with the fine water smoke nozzle structure of closed that uses on the gaseous extinguishing device among the prior art, the shower nozzle flow coefficient of the shower nozzle of putting out a fire in this application is bigger, is suitable for extinguishing device jet flow and injection time requirement, also has atomizing function simultaneously and makes the fire extinguishing agent can spray with the droplet form under well low pressure and put, in addition, the general size of fine water smoke nozzle is great among the prior art, and the compact structure size of the shower nozzle of putting out a fire in this application is littleer, is suitable for small-size extinguishing device equipment cooperation.

It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A fire suppression sprinkler, comprising:

the spray head comprises a spray head body (10) and a spray head body, wherein the spray head body is provided with a first mounting hole (11), a second mounting hole (12) and a liquid inlet (13), and the liquid inlet (13) is communicated with the second mounting hole (12) through the first mounting hole (11);

the mounting rack (20) is arranged on the spray head body (10) and forms a mounting cavity with the spray head body (10) in a surrounding manner;

a temperature sensing structure (30) disposed within the mounting cavity;

the valve core (40) is movably arranged in the first mounting hole (11) to seal or avoid the liquid inlet (13);

the elastic structure (50) is arranged in the first mounting hole (11), two ends of the valve core (40) are respectively abutted against the temperature sensing structure (30) and the elastic structure (50), and the elastic structure (50) is used for applying elastic force moving towards one side far away from the liquid inlet (13) to the valve core (40);

an atomizing nozzle (60) disposed in the second mounting hole (12), the atomizing nozzle (60) including a housing (61) and a wick (62), the wick (62) being disposed in the housing (61), an outer surface of the wick (62) having a plurality of inclined recesses (621), a mist outlet passage (63) being formed between each inclined recess (621) and an inner surface of the housing (61), the mist outlet passage (63) communicating with the second mounting hole (12);

when the surface temperature of the temperature sensing structure (30) is greater than or equal to a preset temperature value, the temperature sensing structure (30) bursts to push the valve core (40) to move towards the direction far away from the liquid inlet (13) and avoid the liquid inlet (13) through the elastic structure (50), and the fire extinguishing agent sequentially passes through the liquid inlet (13), the first mounting hole (11), the second mounting hole (12) and the mist outlet channel (63) to be discharged.

2. Fire sprinkler according to claim 1, characterized in that a plurality of said inclined recesses (621) are provided at intervals in the circumferential and/or axial direction of the core (62); wherein both ends of each of the inclined recesses (621) extend to both ends of the core (62), respectively.

3. Fire sprinkler according to claim 1, characterized in that the inclined recess (621) is an inclined groove or a spiral groove.

4. A nozzle according to claim 1, wherein the number of second holes (12) is multiple, the multiple second holes (12) are arranged around the circumference of the first hole (11) at intervals, and the central axis of each second hole (12) and the central axis of the first hole (11) are arranged at an included angle A, which is larger than 0 and smaller than 90 °.

5. Fire suppression sprinkler according to claim 1, characterized in that the housing (61) has a third mounting hole comprising:

a first bore section (611), the core (62) being disposed within the first bore section (611), the mist outlet passage (63) being formed between each of the inclined recesses (621) and an inner surface of the first bore section (611);

a tapered bore (612);

a second bore section (613), the first bore section (611) communicating with the second bore section (613) through the tapered bore (612); the inner diameter of the tapered bore (612) gradually decreases in a direction from the first bore section (611) to the second bore section (613).

6. Fire sprinkler according to claim 1, characterized in that the outer surface of the housing (61) has an external thread and the inner surface of the second mounting hole (12) has an internal thread, which is screw-engaged with the external thread for connecting the atomizer head (60) and the head body (10).

7. The fire suppression spray head of claim 1, further comprising:

a first seal structure (70) provided between the housing (61) and the second mounting hole (12); and/or the presence of a gas in the gas,

a second sealing structure (80) disposed between the showerhead body (10) and the mounting bracket (20).

8. Fire sprinkler according to claim 1, characterised in that the surface of the valve element (40) facing the temperature-sensitive structure (30) has a limit recess, into which at least part of the temperature-sensitive structure (30) projects and with which it is limit-stopped.

9. Fire sprinkler according to claim 1, characterized in that the first mounting hole (11) comprises:

a third bore section (111);

a limiting step is formed between the fourth hole section (112) and the third hole section (111), the elastic structure (50) is arranged in the fourth hole section (112), and the limiting step is used for limiting and stopping the elastic structure (50);

a fifth bore section (113), the third bore section (111) being in communication with the fifth bore section (113) through the fourth bore section (112), the fifth bore section (113) having a bore diameter larger than the bore diameter of the fourth bore section (112) and being in communication with the second mounting bore (12);

wherein, the end of the third hole section (111) far away from the fourth hole section (112) is the liquid inlet (13), and the valve core (40) is movably arranged in the fifth hole section (113) and at least part of the fourth hole section (112).

10. Fire extinguishing apparatus, characterized in that it comprises a fire extinguishing nozzle according to any one of claims 1 to 9.

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