CN104958848A - Centralized injection type automatic fine water mist fire extinguishing plant - Google Patents
Centralized injection type automatic fine water mist fire extinguishing plant Download PDFInfo
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- CN104958848A CN104958848A CN201510332815.4A CN201510332815A CN104958848A CN 104958848 A CN104958848 A CN 104958848A CN 201510332815 A CN201510332815 A CN 201510332815A CN 104958848 A CN104958848 A CN 104958848A
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- Prior art keywords
- spray
- extinguisher
- fine spray
- fine
- centralized
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
Abstract
A centralized injection type automatic fine water mist fire extinguishing plant is characterized by being composed of a hoisting assembly, an electrical staring device, a centralized fine water mist spraying assembly, a gas generator, a tank body, liquid extinguishant and a water filling port. A centralized fine water mist spray head of the fine water mist spraying assembly is hemispherical. Opposite flushing type spray holes are symmetrically and evenly distributed in the spray head. The diameter of each spray hole ranges from 1.5 mm to 2.5 mm. The spray holes surround the hemispherical spray head in a plurality of lines of circles. The line spacing of the spray holes is equal to the distance between every two adjacent spray holes in the same line. The number of the lines of the spray holes arranged in the centralized fine water mist spray head in a circle mode is 3-7. The centralized injection type automatic fine water mist fire extinguishing plant has the advantages of being small in structure, good in spraying effect, high in spraying capacity, wide in protection range and uniform in fire extinguishment effect.
Description
Technical field
The present invention is a kind of concentrated automatic fine spray extinguisher of injecting type, mainly liquid extinguisher is concentrated the automatics of spraying and carrying out putting out a fire in the mode of water mists.
Background technology
Suspension type fine spray extinguisher is as a kind of new extinguishing device, compare former pump group formula and bottle group type water mists device has an enormous advantage, this suspension type fine spray extinguisher eliminates equipment and the parts such as the necessary high-pressure hydraulic pump of fine water mist fire-extinguishing system, storage cistern, pipe network completely, makes the reliability of this fire-fighting mode of water mists be greatly improved and simplify.Suspension type fine spray extinguisher normality is with no pressure simultaneously, and security is very high, and cost is also far below pump group formula fine water mist fire-extinguishing system.But because suspension type fine spray extinguisher adopts is the operation principle of water conservancy diversion frame and distributing shower nozzle, extinguishing device is made to there will be the uneven phenomenon of atomized water spray when water mists sprays, also extinguishing device middle part extinguishing ability when spraying can be caused stronger simultaneously, and the shower nozzle jet power at position is more weak around extinguishing device, directly affecting device is exactly that extinguishing effect is unbalanced, the centre position extinguishing ability of fine spray extinguisher is comparatively strong, and the extinguishing ability of surrounding is more weak.The structure of this water conservancy diversion frame and distribution showerhead simultaneously, be not suitable for being used in inflammable and explosive place and environment, because water conservancy diversion frame is Welding Structure, explosion-proof capabilities is limited, and the ability of anti-foreign impacts is also more weak simultaneously.
The present invention concentrates the automatic fine spray extinguisher of injecting type to solve above mentioned problem well, the automatic fine spray extinguisher of this concentrated injecting type eliminates water conservancy diversion frame and the distributing shower nozzle of existing suspension type fine spray extinguisher, adopt and concentrate injecting type fine mist spray head, this shower nozzle has compact structure, jeting effect and jet power strong, protection domain is extensive, the feature of extinguishing effect equilibrium, this extinguishing device is more suitable for being used in inflammable and explosive place and environment simultaneously, there is good explosion-proof capabilities, effectively can resist extraneous burning and the impact caused by blast, explosion-proof clearly.
Summary of the invention
The present invention concentrates the automatic fine spray extinguisher of injecting type for the defect of the existing suspension type fine spray extinguisher described in previous Background, gives concrete and feasible solution.
The technical scheme that the present invention solves above technical problem is as follows:
The present invention concentrates the automatic fine spray extinguisher of injecting type; it is characterized in that: be made up of hanging component, electric starter, centralized water mists ejection assemblies, gas generator, tank body, liquid extinguisher and water filling port, the spray angle of this device of the structures shape of the centralized fine mist spray head wherein in water mists ejection assemblies and protection domain.
Fine spray extinguisher of the present invention, himself constitutes the fine water mist fire-extinguishing system of complete set, and independence is very strong.The topmost feature of this fine water mist fire-extinguishing system have employed centralized water mists ejection assemblies exactly, this seems usual parts and but serves vital effect when device sprays, because what fine mist fire-fighting mainly utilized is the physical characteristic cooling and suffocate, water is as extinguishing chemical, the cooling effect of itself clearly, but the physical characteristic of smothering action can vary because of the difference of device, because the injecting time of this gas driven formula fine spray extinguisher is limited, only have short several seconds, therefore when device sprays, the quality of smothering effect is most important, it is directly connected to the speed of fire extinguishing and the final effect of fire extinguishing, because the present invention concentrates injecting type fine spray extinguisher to have employed centralized water mists ejection assemblies, centrality and the harmony of its jeting effect are that the fine spray extinguisher being far from common water conservancy diversion rack and panel construction can be compared, shorten the time of fire extinguishing widely, enhance the effect of fire extinguishing.Show through repeatedly testing, the blow-off velocity of fine spray extinguisher of the present invention and efficiency highly significant, the food tray fire of 233B type can be knocked out within the extremely short time, its extinguishing effect is equally matched with suspended type ultrafine dry powder extinguishing installation, break people and think the viewpoint only having suspended type ultrafine dry powder extinguishing installation could knock out 233B type food tray fire within 2 seconds for a long time, revolutionize the fine mist fire-fighting time in traditional view long, inefficient impression, positive promotion and facilitation are served to this efficient fire-fighting mode of further development and utilization water mists, importance and the meaning of its invention are self-evident.
The present invention concentrates the gases at high pressure of the power source of the automatic fine spray extinguisher of injecting type for producing after the gas generator work in device, the need of work of gas generator by electric starter for it provides electric current.The startup of this device has two features: 1, with the gases at high pressure produced after gas generator work for power source.2, the work of gas generator have employed electric starting pinciple.Be mode of operation with gas driven during gas generator work, gas generator operationally burns at a terrific speed, produces a large amount of gas simultaneously, and these gases are compressed in fine spray extinguisher, thus create a large amount of gases at high pressure, namely compressed air.We know that compressed air is important power source, but traditional compressed-air actuated producing method is mechanical mostly, as this in combustion gas mode and then produce compressed-air actuated mode, its efficiency and speed will far away higher than traditional compressed-air actuated producing methods, this automobile like top grade in seconds just can accelerate to the speed per hour of more than hundred kilometers from inactive state, and common automobile just to accelerate to same speed per hour with the time times over this same, the whether powerful of power is the key determining success or failure and usefulness, exactly because fine spray extinguisher of the present invention have employed this powerful gasifier system, the usefulness of extinguishing device is just made to be greatly improved.What gas generator adopted simultaneously is the working method that electricity starts, and this also concentrates injecting type fine spray extinguisher and traditional water spray system to have the difference of essence with regard to determining the present invention.The process of intelligent electric applianceization development, as long as determine device that electricity consumption Starting mode carrys out work can have unlimited extending space, such as wireless remote control, Intellectualized starting, remote-wireless startup etc. mode is too numerous to enumerate, the application prerequisite of these modes is all electricity consumption must start the startup carrying out control device, and traditional Water spray fire extinguishing system does not possess this advantage and feature.This is also an important advance part of the present invention.
The mounting means of the automatic fine spray extinguisher of the present invention is that suspension type is installed, and fine mist spray head height overhead must not be too high or too low, and 5 meters is optimum distance.What fine spray extinguisher of the present invention adopted is suspension type mounting means, hang installation and look like a kind of mounting means, but be in fact a kind of means of fire extinguishing, because underslung mounting means can utilize gravitational principle better, device is made to adopt top-down mode to spray when spraying, the kinetic energy produced when device so just can be made to spray can perform to ultimate attainment, simultaneously advantageously in the realization of the total flooding covering design principle of fine spray extinguisher, thus realize the smothering action of water mists to fire better, therefore underslung top-down spray regime is more far better than the extinguishing effect of common parallel injection or spray regime from bottom to top.The height on the shower nozzle distance ground of this device also has requirement simultaneously; can not be too high or too low, too high, device just may occur that kinetic energy is not enough; extinguishing effect is not good; and too low, then the area coverage of device is too small, does not reach the guard space designed by device and protection domain; just good extinguishing effect is not realized yet; experiment according to us shows, the height of about 5 meters is best distances, is much better than the extinguishing effect of other height at the extinguishing effect of this distance timer.
The tank body of fine spray extinguisher of the present invention is spheroidal, oblate taper or oblateness, and the spout of tank body is small-bore spout.The design principle of this tank body is based on hydromechanical principle, because the gas produced during the work of fine spray extinguisher that we invent to need and liquid extinguisher in device mixes the better extinguishing effect of rear competence exertion fully, and this spheroidal, oblate taper or oblate structure be have the flowing that is beneficial to gas and with the mixing of liquid extinguisher, and the spout of tank body is small-bore spout, also be because our blowoff again after needing the gas in device fully to be flowed and mixes, the effect of this small-bore spout is the slow releasing function being conducive to playing device, fire extinguishing effect of device can be played better.
The centralized fine mist spray head of fine spray extinguisher of the present invention is hemispherical shower nozzle, shower nozzle is evenly distributed with opposite-flushing type spray orifice in a symmetrical, the diameter of spray orifice is between 1.5 millimeters to 2.5 millimeters scopes, spray orifice is looped around on hemispherical shower nozzle in the mode of several rows circle, and the distance between line-spacing two spray orifices adjacent with same a line of shower nozzle is identical.The spray orifice line number that centralized fine mist spray head arranges in circle mode for 3-7 capable.
The water mists ejection assemblies of fine spray extinguisher of the present invention is made up of with the hollow steel disc pressure ring of tongue, centralized fine mist spray head and spout seal steel ring peripheral band reeded tank body connector, peripheral band reeded aluminium diaphragm, periphery.Above description also show the formation of water mists ejection assemblies in this device, the composition of several parts is indispensable above, this combining structure of water mists ejection assemblies shows that the injection of fine spray extinguisher is the synergistic result of multi-part, the synergy of these parts has the following aspects: seal when 1, assurance device not yet sprays just starting, simultaneously also can the spout of assurance device can smooth opening when reaching setup pressure value.2, can assurance device after spout is opened, opposing seal when water mists sprays, makes water mists can spray along the direction of specifying, and can not spray spilling around spout.3, can ensure the stability of fine spray extinguisher gas flowing when two-phase flow is sprayed, the gases at high pressure that device is produced also can spray along the direction of specifying, and can not spray spilling around spout.
The ejection assemblies of fine spray extinguisher of the present invention needs sealing to install, and must not have any gas leakage part, particularly tank body connector, aluminium diaphragm, hollow steel disc pressure ring, the junction of these three assemblies will scribble fluid sealant.In the course of work of this device, the sealing property of guarantee gas is vital, therefore the ejection assemblies of this device needs sealing to install, gas leakage part must not be had, simultaneously because tank body connector, aluminium diaphragm, hollow steel disc pressure ring, this few place's contact part is metal structure, is easy to gas leakage, therefore fluid sealant will be scribbled in the junction of these three assemblies, to ensure the sealing property of this device.
The reeded aluminium diaphragm of peripheral band in the water mists ejection assemblies of fine spray extinguisher of the present invention there is cut, scratch depth is the 50%-75% of aluminium diaphragm thickness, cut divides three to take hexagonal angle as interval respectively from surrounding, occurs simultaneously, finally meet at central spot with form of straight lines to central point.Cut on aluminium diaphragm is to be broken through by aluminium film from cut when the air pressure in assurance device acquires a certain degree, our experiments show that, if the degree of depth of cut is less than 50% of aluminium diaphragm thickness, aluminium diaphragm is then substantially difficult to open smoothly in a short period of time, and scratch depth is when being greater than 75% of aluminium diaphragm thickness, easily again carry out cut at aluminium film and add and man-hour aluminium film is scratched, thus cause device to leak gas, the therefore degree of depth of cut to be the 50%-75% of aluminium diaphragm thickness be a desirable numerical value.
There is equally distributed spray line on the gas generator surface of fine spray extinguisher of the present invention, and there are electric igniter and gas producing medicinal in gas generator inside, to be ignited gas producing medicinal by electric igniter.Gas generator in this device has following feature: 1, gas generator inside is made up of electric igniter and gas producing medicinal; 2, during gas generator work, electric igniter is first lighted, and then gas producing medicinal is lighted by electric igniter again; 3, the spray line that gas is distributed by gas generator surface uniform sprays.
The electric starter generation current of fine spray extinguisher of the present invention makes gas generator work, and electric starter can set and start at different temperature with output current, reaches effect of self-extinguishing.Because this device carrys out work by current start, therefore output current when we can be set in different temperature, device so just can be made to realize the effect of temperature control startup, make device startup work when that is can be implemented in different temperature, extend the scope of application and the field of employment of device widely.
Accompanying drawing explanation
Fig. 1 is overall cross-sectional schematic of the present invention.
Fig. 2 is the formation schematic diagram of tank body spout assembly of the present invention.
Fig. 3 is the formation schematic diagram of concentrated injecting type shower nozzle of the present invention.
Specific works principle of the present invention:
Refer to shown in Fig. 1, fine spray extinguisher of the present invention is made up of a few parts such as hanging component 1, electric starter 2, water mists ejection assemblies 3, gas generator 4, tank body 5, liquid extinguisher 6 and water filling ports 7, and water mists ejection assemblies 3 is made up of tank body spout assembly 8 and concentrated injecting type shower nozzle 9.
The suspension of fine spray extinguisher of the present invention and hanging component are as shown in Fig. 11, both the effect of hanging and lifting can have been played, can the wire of various lead-out wire and electric igniter be arranged on wherein again, thus effectively ensure that above several lead-out wire and wire not by the impact of extraneous adverse circumstances, Multi-point temperature-sensing automatic current generator can be added in this hanging apparatus simultaneously, and the design of this suspension and hanging apparatus, the multiple spot automatic temperature-sensed current feedback circuit of loading in it can be made to be in all the time in thermal-arrest district.This project organization both ensure that the integraty of device and the convenience of installation effectively, and scientifically achieving again can promptly automatic temperature-sensed and protect the function of various wire.
Figure 2 shows that the formation schematic diagram of tank body spout assembly in fine spray extinguisher.Tank body spout assembly by the reeded aluminium diaphragm 1 of peripheral band, periphery with tongue hollow steel disc pressure ring 2, concentrate injecting type shower nozzle 3 to be connected ring gasket 4 with spout and to form, all scribble fluid sealant 5 in tank body connector and the junction of aluminium diaphragm and the junction of aluminium diaphragm and hollow steel disc pressure ring.As shown in Figure 2, because add ejection assemblies, between tank body connector and aluminium film, and aluminium diaphragm and hollow steel disc pressure ring, concentrate the seal problem between injecting type shower nozzle, spout seal steel ring to be also vital problem, in experimenting, we find out that, because above several parts are all inelastic metals, be therefore easy to the phenomenon leaked air when pressure is excessive in tank body, this situation is of common occurrence in actual applications.Therefore above several parts are optimized design by us, tank body connector outer ring adds one groove, the periphery outer ring of aluminium diaphragm too increases one groove, simultaneously in order to compress aluminium diaphragm, on aluminium diaphragm, adding again the hollow steel disc pressure ring of a periphery with tongue, just can being closely engaged between the tongue and groove of such three parts, in order to increase seal, fluid sealant has been coated, as shown in Fig. 25 again at the tongue and groove position of these three parts.The seal of above assembly can be ensured like this, add concentrated injecting type shower nozzle and spout seal steel ring in the outside of these three assemblies simultaneously, material is thus formed tight spout seal system, effectively ensure that reliability and the security of device work.
Figure 3 shows that the formation schematic diagram of concentrated injecting type shower nozzle of the present invention, as shown in the figure, concentrate injecting type shower nozzle by shower nozzle pressure ring limit 1, shower nozzle spray-hole 2 and shower nozzle water smoke barrier 3 form, on the hollow steel disc pressure ring that water mists concentrates the pressure ring limit 1 of injecting type shower nozzle to be pressed in tightly in water mists spout assembly, then injecting type shower nozzle is concentrated to fix water mists by spout seal steel ring, generally, concentrated injecting type fine mist spray head in device will face the center of guard space, like this after device starts, break through the liquid extinguisher of aluminium film, hollowly can form flow pattern smoothly after in cylindrical concentrated injecting type shower nozzle entering, this flowing at all can not hinder or reduce the injection of liquid extinguisher.Liquid extinguisher simultaneously in concentrated injecting type shower nozzle can eject smoothly and widely in the opposite-flushing type spray orifice 2 of uniform distribution shower nozzle wall, because there is the effect of shower nozzle water smoke barrier 3, therefore liquid extinguisher can only spray from having the position of shower nozzle spray-hole 2, thus achieve good water smoke liquidate spray effect.As long as so in advance opposite-flushing type spray-hole 2 is aimed at protection zone, then liquid extinguisher is bound to spray by predetermined orientation and angle, can realize protection scheme set in advance completely.Another important effect of the opposite-flushing type spray orifice of this concentrated injecting type shower nozzle simultaneously can make the liquid extinguisher ejected from device realize liquidating shock exactly, thus produce more fine and closely woven water smoke, make fine spray extinguisher realize the jeting effect of even and closely knit water mists.This also extends the projected area of fine spray extinguisher and device widely to the protection volume of protective zone; thus the protective effect of the total flooding of the water mists achieved to greatest extent; the water mists cooling having played extinguishing device better and the extinguishing effect suffocated, therefore in the present invention, water mists concentrates the extinguishing effect of injecting type shower nozzle to whole device to serve vital effect.
Detailed description of the invention
As shown in Figure 1, when the arbitrary temperature-sensitive point in the Multi-point temperature-sensing automatic current generator 2 be connected with this device, perceive environment temperature reach or higher than set temperature time, then produce starting current in automatic current generator 2, gas generating agent in gas generator 4 in this device can be lighted by starting current, gas generator can produce a large amount of gas, after gas breaks through the aerogenesis mouth of gas generator shell, spray from the jet water repellent filter cylinder after high density filter net, with the form of covering of the fan radiation, gas is flowed along outer casing inner wall.Liquid extinguisher 6 in this crust of the device 5 can be carried out uniform stirring and form convection current by a large amount of gas within the extremely short time, liquid extinguisher 6 collects in the top of the aluminium diaphragm in tank body spout assembly 8, aluminium film is impacted and pressurizes, along with the continuous generation of gas, air pressure constantly increases, when air pressure exceedes the allowable stress of aluminium film cut, the intersection of three cuts of aluminium center membrane point will be washed open, the direction of aluminium film by cut is torn simultaneously, liquid extinguisher 6 sprays, liquid extinguisher 6 now in tank body 5 pours rapidly in concentrated injecting type fine mist spray head 9, after the promotion entering the gases at high pressure of liquid extinguisher through spraying in device simultaneously in fine mist spray head 9 and stirring action, from the ejection at a high speed of the spray orifice fine mist spray head 9, the water mists of ejection can because liquidating of jet nozzle angle designs and clashes into further, the result of this shock is exactly to form finer and close water mists, the particle diameter that water mists drips simultaneously will become less.At this moment, the effect of the centralized fine mist spray head 9 in fine spray extinguisher also becomes most important, this centralized fine mist spray head can make the water mists ejected form good total flooding effect, thus make burned flame be enclosed in fine and close water smoke completely, and namely water mists now serves the effect of cooling, also the formula extinguishing effect that suffocates of the unique total flooding of similar extinction using gas mode is reached, therefore within the extremely short time, flame can be knocked out, realize good extinguishing effect.
Claims (10)
1. the automatic fine spray extinguisher of concentrated injecting type; it is characterized in that: be made up of hanging component, electric starter, centralized water mists ejection assemblies, gas generator, tank body, liquid extinguisher and water filling port, the spray angle of this device of the structures shape of the centralized fine mist spray head wherein in water mists ejection assemblies and protection domain.
2. automatic fine spray extinguisher according to claim 1, it is characterized in that: the gases at high pressure of power source for producing after the gas generator work in device of fine spray extinguisher of the present invention, the need of work of gas generator by electric starter for it provides electric current.
3. automatic fine spray extinguisher according to claim 1, is characterized in that: the mounting means of fine spray extinguisher of the present invention is that suspension type is installed, and fine mist spray head height overhead must not be too high or too low, and 5 meters is optimum distance.
4. automatic fine spray extinguisher according to claim 1, is characterized in that: the tank body of fine spray extinguisher of the present invention is spheroidal, oblate taper or oblateness, and the spout of tank body is small-bore spout.
5. automatic fine spray extinguisher according to claim 1, it is characterized in that: the centralized fine mist spray head of fine spray extinguisher of the present invention is hemispherical shower nozzle, shower nozzle is evenly distributed with opposite-flushing type spray orifice in a symmetrical, the diameter of spray orifice is between 1.5 millimeters to 2.5 millimeters scopes, spray orifice is looped around on hemispherical shower nozzle in the mode of several rows circle, distance between line-spacing two spray orifices adjacent with same a line of shower nozzle is identical, the spray orifice line number that centralized fine mist spray head arranges in circle mode for 3-7 capable.
6. automatic fine spray extinguisher according to claim 1, is characterized in that: the water mists ejection assemblies of fine spray extinguisher of the present invention is made up of with the hollow steel disc pressure ring of tongue, centralized fine mist spray head and spout seal steel ring peripheral band reeded tank body connector, peripheral band reeded aluminium diaphragm, periphery.
7. automatic fine spray extinguisher according to claim 1, it is characterized in that: the ejection assemblies needs sealing of fine spray extinguisher of the present invention is installed, any gas leakage part must not be had, particularly tank body connector, aluminium diaphragm, hollow steel disc pressure ring, the junction of these three assemblies will scribble fluid sealant.
8. automatic fine spray extinguisher according to claim 1, it is characterized in that: the reeded aluminium diaphragm of the peripheral band in the water mists ejection assemblies of fine spray extinguisher of the present invention has cut, scratch depth is the 50%-75% of aluminium diaphragm thickness, cut divides three to be interval respectively with hexagonal angle from surrounding, occur simultaneously to central point with form of straight lines, finally meet at central spot.
9. automatic fine spray extinguisher according to claim 1, it is characterized in that: there is equally distributed spray line on the gas generator surface of fine spray extinguisher of the present invention, there are electric igniter and gas producing medicinal in gas generator inside, to be ignited gas producing medicinal by electric igniter.
10. automatic fine spray extinguisher according to claim 1, it is characterized in that: the electric starter generation current of fine spray extinguisher of the present invention makes gas generator work, electric starter can set and start at different temperature with output current, reaches effect of self-extinguishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332815.4A CN104958848A (en) | 2015-06-16 | 2015-06-16 | Centralized injection type automatic fine water mist fire extinguishing plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510332815.4A CN104958848A (en) | 2015-06-16 | 2015-06-16 | Centralized injection type automatic fine water mist fire extinguishing plant |
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| CN104958848A true CN104958848A (en) | 2015-10-07 |
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| CN201510332815.4A Pending CN104958848A (en) | 2015-06-16 | 2015-06-16 | Centralized injection type automatic fine water mist fire extinguishing plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544819A (en) * | 2020-06-01 | 2020-08-18 | 中国中元国际工程有限公司 | Intelligent automatic fire-fighting water spraying method |
| CN112121345A (en) * | 2019-06-24 | 2020-12-25 | 北京北机机电工业有限责任公司 | Suspension type dry powder self-service fire extinguishing device |
| CN112543567A (en) * | 2020-12-18 | 2021-03-23 | 南京鼎天吉贸易有限公司 | Integrative communication rack device of light-harvesting electricity conversion and fire prevention function |
-
2015
- 2015-06-16 CN CN201510332815.4A patent/CN104958848A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121345A (en) * | 2019-06-24 | 2020-12-25 | 北京北机机电工业有限责任公司 | Suspension type dry powder self-service fire extinguishing device |
| CN111544819A (en) * | 2020-06-01 | 2020-08-18 | 中国中元国际工程有限公司 | Intelligent automatic fire-fighting water spraying method |
| CN112543567A (en) * | 2020-12-18 | 2021-03-23 | 南京鼎天吉贸易有限公司 | Integrative communication rack device of light-harvesting electricity conversion and fire prevention function |
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