CN219398815U - High-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle - Google Patents
High-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle Download PDFInfo
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- CN219398815U CN219398815U CN202223515451.8U CN202223515451U CN219398815U CN 219398815 U CN219398815 U CN 219398815U CN 202223515451 U CN202223515451 U CN 202223515451U CN 219398815 U CN219398815 U CN 219398815U
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Abstract
The utility model relates to the technical field of fire-fighting nozzles, in particular to a high-pressure temperature-sensing closed direct-injection type water mist fire-fighting nozzle, which comprises a nozzle main body, a plunger rod and a temperature-sensing glass body, wherein a water inlet channel is arranged in the nozzle main body, the plunger rod is movably arranged in the water inlet channel, and a plurality of spray holes are formed in the side wall of the nozzle main body; in normal state, the plunger rod is propped against the temperature sensing glass body to keep the water inlet channel and the spray head from being conducted. When the external temperature reaches the rated temperature of the temperature-sensing glass body, the temperature-sensing glass body is broken, the plunger rod is pushed downwards by water pressure, high-pressure water enters the spray hole of the nozzle body to form water mist for spraying, and the sprayed fine water mist is used for extinguishing or controlling fire. The integral structure has attractive and elegant appearance, and occupies space is saved. Get rid of the shower nozzle, change by orifice direct injection formula structure simpler, reduce spray spare part but promoted the performance again, under the circumstances of promoting the performance, saved the maintenance cost of traditional a plurality of combination shower nozzles again.
Description
Technical Field
The utility model relates to the technical field of fire-fighting nozzles, in particular to a high-pressure temperature-sensing closed direct-injection type water mist fire-fighting nozzle.
Background
The spray head/nozzle is a component for directly spraying water (fog) to extinguish fire, and is an automatic spray head with a heat sensitive element and a sealing component thereof. The spray heads are divided into two types, namely a glass ball spray head and a fusible element spray head according to the heat-sensitive elements, the spray heads are plugged by the glass ball and the fusible element, and when the glass ball and the fusible element are broken or melted, water in the spray heads can be sprayed out from the spray heads to extinguish the fire indoors.
The average grain diameter of the water mist is generally smaller than 100 microns, the specific surface area and the distribution density are high, the vaporization cooling effect and the oxygen-blocking asphyxiation effect are stronger, and the water mist can be widely applied to fire extinguishment in high-grade places. For example, in places such as apartments, high-grade hotels, archival databases, scientific laboratories, computer rooms, and the like, the water mist sprayed through the nozzles is used for fire extinguishing treatment in places.
The technology disclosed in the Chinese patent document with the name of high-pressure concealed closed water mist nozzle is disclosed in publication No. CN112774881A, and is authored by the applicant of the patent, the glass ball is automatically broken after the external temperature reaches above the born temperature, at the moment, the plunger rod loses the abutting force, the plunger rod slides away from the connector, the inner side of the glass ball bracket is communicated with the nozzle, and water spraying is realized.
There are technical problems to be improved: the existing nozzles are provided with independent spray heads at the water outlets, so that the structure is complex and the cost is high; the split type structure is not attractive, the special narrow space is inconvenient to install, and the split type structure occupies a larger space.
Disclosure of Invention
Aiming at the technical problems in the prior art, the utility model provides a high-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the high-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle comprises a nozzle body, a plunger rod and a temperature-sensing glass body, wherein a water inlet channel is formed in the nozzle body, the plunger rod is movably arranged in the water inlet channel, and a plurality of spray holes are formed in the side wall of the nozzle body; in a normal state, the plunger rod is propped against the temperature sensing glass body to keep the water inlet channel blocked from being communicated with the spray head; under the triggering state, the temperature sensing glass body is heated and broken to release the limit on the plunger rod, so that the plunger rod moves to enable the water inlet channel to be communicated with the spray head.
Specifically, the plurality of spray holes are arranged linearly or in a staggered manner around the side wall of the nozzle body.
Specifically, a through hole is formed in the nozzle main body, a partial section of the nozzle main body is used as the water inlet channel, and the plunger rod is positioned in the through hole; the plunger rod is provided with a bypass hole, and the lower port of the through hole is provided with a backflow groove surface aligned with the bypass hole.
Specifically, the nozzle main body is connected with a supporting and protecting frame, one end of the temperature sensing glass body is propped against the supporting and protecting frame, and the other end is propped against the plunger rod.
Specifically, the support protection frame is provided with a set screw which props against the temperature sensing glass body, and the set screw is in threaded connection with the support protection frame.
Specifically, the support protection frame comprises a plurality of protection bars which are arranged outside the temperature sensing glass body and are arranged in a separated mode.
Specifically, the inside of the spray hole is provided with more than two stages of steps.
Specifically, the nozzle main part is connected with the filter screen skeleton, and the tip grafting of filter screen skeleton is in the nozzle main part, and the lateral part of filter screen skeleton is provided with a plurality of inlet openings that communicate water inlet channel, and inlet opening department surrounds has the filter screen.
Specifically, the water inlet channel is provided with a sealing pressing sleeve and a first sealing ring, and the sealing pressing sleeve and the filter screen framework jointly press the first sealing ring.
Specifically, the middle part outside of nozzle main part is provided with the takeover screw thread, and the upside of takeover screw thread is provided with second sealing washer and third sealing washer respectively.
The utility model has the beneficial effects that:
when the high-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle is used, the water inlet channel is connected with an external water supply pipe, after the external temperature reaches the rated temperature of a temperature sensing glass body, the temperature sensing glass body is broken, the plunger rod is pushed downwards by water pressure, high-pressure water enters the spray hole of the nozzle main body to form water mist for spraying, and the sprayed fine water mist is used for extinguishing fire or controlling fire. Compared with the prior art:
1) Integral type structure, whole length and diameter can shorten, and outward appearance elegant appearance is convenient for swiftly install in special narrow space, saves occupation space.
2) The design of a plurality of spray holes ensures that the spray coverage is larger and more uniform, and the fire control and extinguishing performance is effectively improved.
3) The spray nozzle is removed, the spray hole direct-injection structure is simpler, and the spray parts are reduced, but the performance is improved. Therefore, under the condition of improving the performance, the maintenance cost of the traditional multiple combined spray heads is saved.
Drawings
Fig. 1 is a schematic structural diagram of a high-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle in an embodiment.
Fig. 2 is a schematic diagram of an embodiment in which the nozzle is triggered.
Reference numerals:
the nozzle comprises a nozzle body 1, a through hole 11, a water inlet channel 12, a spray hole 13, a backflow groove surface 14 and a connecting pipe thread 15;
a plunger rod 2, a bypass hole 21;
a temperature-sensitive glass body 3 and a blasted temperature-sensitive glass body 31;
supporting the protective frame 4, the set screw 41 and the protective strip 42;
the filter screen framework 5, the water inlet hole 51, the filter screen 6, the sealing pressing sleeve 7 and the first sealing ring 8;
a second sealing ring 9 and a third sealing ring 10.
Detailed Description
The present utility model will be described in detail with reference to specific embodiments and drawings.
The high-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle in the embodiment comprises a nozzle body 1, a plunger rod 2 and a temperature-sensing glass body 3, wherein a through hole 11 is formed in the nozzle body 1 along a central shaft, the plunger rod 2 is movably arranged in the through hole 11, the upper section of the through hole 11 serves as a water inlet channel 12, a plurality of spray holes 13 are formed in the side wall of the nozzle body 1, more than two stages of steps are arranged in the spray holes 13, and the number of the steps is designed according to different flow rates. When in use, the water inlet channel 12 is connected with an external water supply pipe, and in a normal state, the plunger rod 2 is propped against the temperature sensing glass body 3 as shown in fig. 1, so that the water inlet channel 12 is kept blocked from being communicated with the spray head. In the triggered state, when the external temperature reaches the rated temperature of the temperature sensing glass body 3, the temperature sensing glass body 3 is broken to form a broken and exploded temperature sensing glass body 331 to be separated, the limit on the plunger rod 2 is released, the plunger rod 2 is pushed downwards by water pressure, the water inlet channel 12 is communicated with the spray head, high-pressure water enters the spray hole 13 of the nozzle body 1 to form water mist for spraying, and the sprayed fine water mist is used for extinguishing or controlling fire. The spraying is performed after the temperature-sensitive glass body 3 is exploded and the plunger rod 2 is dropped when the on-site temperature exceeds the rated temperature of the temperature-sensitive glass body 3 (the rated temperature of the temperature-sensitive glass body 3 is selected from various types, such as 57 ℃, 68 ℃, 79 ℃, 93 ℃, 141 ℃, 182 ℃ and 260 ℃ in the conventional cases).
Specifically, the plurality of nozzle holes 13 are arranged linearly or in a staggered manner around the side wall of the nozzle body 1. In this embodiment, the two rows are arranged linearly, and a total of twenty nozzles 13 are arranged in two rows of upper and lower rings. Different numbers and arrangement modes can be formulated according to different places.
Considering that the lower end of the nozzle needs to spray to extinguish fire, a plurality of bypass holes 21 are arranged on the plunger rod 2, a backflow groove surface 14 aligned with the bypass holes 21 is arranged on the lower end of the through hole 11, and when spraying, water flowing through the bypass holes 21 impacts the backflow groove surface 14, so that diffusion spray is formed on the lower end.
In this embodiment, the nozzle body 1 is connected with a supporting and protecting frame 4, and the temperature-sensing glass body 3 has one end propped against the supporting and protecting frame 4 and the other end propped against the plunger rod 2. The support protection frame 4 is provided with a set screw 41 which abuts against the temperature sensing glass body 3, and the set screw 41 is in threaded connection with the support protection frame 4. The support and protection frame 4 comprises a plurality of protection bars 42 arranged outside the temperature sensing glass body 3 in a spaced-apart arrangement.
In this embodiment, the nozzle body 1 is connected with a filter screen skeleton 5, the end of the filter screen skeleton 5 is inserted into the nozzle body 1, a plurality of water inlet holes 51 communicating with the water inlet channel 12 are provided at the side of the filter screen skeleton 5, and the filter screen 6 is surrounded at the water inlet holes 51. The water inlet channel 12 is provided with a sealing pressing sleeve 7 and a first sealing ring 8, and the sealing pressing sleeve 7 and the filter screen framework 5 jointly press the first sealing ring 8.
In this embodiment, a connecting pipe thread 15 is provided on the outer side of the middle part of the nozzle body 1, a second sealing ring 9 and a third sealing ring 10 are respectively provided on the upper side and the lower side of the connecting pipe thread 15, and a peripheral water supply pipe is spirally connected with the connecting pipe thread 15 to be connected with water supply, and the water enters the water inlet channel 12 through the filter screen 6.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (9)
1. A high-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle is characterized in that: the device comprises a nozzle main body, a plunger rod and a temperature sensing glass body, wherein a water inlet channel is arranged in the nozzle main body, the plunger rod is movably arranged in the water inlet channel, and a plurality of spray holes are formed in the side wall of the nozzle main body; in a normal state, the plunger rod is propped against the temperature sensing glass body to keep the water inlet channel blocked from being communicated with the spray head; in the triggering state, the temperature sensing glass body is heated and broken to release the limit on the plunger rod; the inside of the nozzle main body is provided with a through hole, a partial section of the nozzle main body is used as the water inlet channel, and the plunger rod is positioned in the through hole; the plunger rod is provided with a bypass hole, and the lower port of the through hole is provided with a backflow groove surface aligned with the bypass hole.
2. The high pressure temperature-sensitive closed direct-injection type water mist fire extinguishing nozzle according to claim 1, characterized in that: the spray holes are linearly arranged or staggered around the side wall of the nozzle body.
3. The high pressure temperature-sensitive closed direct-injection type water mist fire extinguishing nozzle according to claim 1, characterized in that: the nozzle main body is connected with a supporting and protecting frame, one end of the temperature sensing glass body is propped against the supporting and protecting frame, and the other end is propped against the plunger rod.
4. A high pressure temperature-sensitive closed direct spray fire-extinguishing nozzle as claimed in claim 3, wherein: the support protection frame is provided with a set screw which props against the temperature sensing glass body, and the set screw is in threaded connection with the support protection frame.
5. A high pressure temperature-sensitive closed direct spray fire-extinguishing nozzle as claimed in claim 3, wherein: the support protective frame comprises a plurality of protective strips which are arranged outside the temperature sensing glass body and are arranged in a separated mode.
6. The high pressure temperature-sensitive closed direct-injection type water mist fire extinguishing nozzle according to claim 1, characterized in that: the inside of the spray hole is provided with more than two stages of steps.
7. The high pressure temperature-sensitive closed direct-injection type water mist fire extinguishing nozzle according to claim 1, characterized in that: the nozzle main body is connected with a filter screen framework, the end part of the filter screen framework is inserted into the nozzle main body, a plurality of water inlet holes communicated with a water inlet channel are formed in the side part of the filter screen framework, and a filter screen is surrounded at the water inlet holes.
8. The high pressure temperature-sensitive closed direct spray fire-extinguishing nozzle as claimed in claim 7, wherein: the water inlet channel is provided with a sealing pressing sleeve and a first sealing ring, and the sealing pressing sleeve and the filter screen framework jointly press the first sealing ring.
9. The high pressure temperature-sensitive closed direct-injection type water mist fire extinguishing nozzle according to claim 1, characterized in that: the middle part outside of nozzle main part is provided with the takeover screw thread, and the upside of takeover screw thread is provided with second sealing washer and third sealing washer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223515451.8U CN219398815U (en) | 2022-12-28 | 2022-12-28 | High-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223515451.8U CN219398815U (en) | 2022-12-28 | 2022-12-28 | High-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219398815U true CN219398815U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223515451.8U Active CN219398815U (en) | 2022-12-28 | 2022-12-28 | High-pressure temperature-sensing closed direct-injection type water mist fire extinguishing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219398815U (en) |
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2022
- 2022-12-28 CN CN202223515451.8U patent/CN219398815U/en active Active
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