CN115025429A - Water curtain separation and protection method for ancient buildings - Google Patents
Water curtain separation and protection method for ancient buildings Download PDFInfo
- Publication number
- CN115025429A CN115025429A CN202210628720.7A CN202210628720A CN115025429A CN 115025429 A CN115025429 A CN 115025429A CN 202210628720 A CN202210628720 A CN 202210628720A CN 115025429 A CN115025429 A CN 115025429A
- Authority
- CN
- China
- Prior art keywords
- water
- water curtain
- curtain
- pipe
- protection method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
技术领域technical field
本发明涉及古建筑保护技术领域,特别涉及一种古建筑水幕分隔保护方法。The invention relates to the technical field of ancient building protection, in particular to a water curtain separation protection method for ancient buildings.
背景技术Background technique
古建筑是指具有历史意义的建国之前的民用建筑和公共建筑,很多古镇以及大部分的大城市还保留着一些古建筑,建筑文化是中国传统文化的一部分,古建筑通常是木质结构,与现在的钢筋混凝土相比,很容易发生火灾,同时古建筑之间往往建造的很密集,当开始进行灭火时火灾已经蔓延开来,因此需要一种可以在火灾发生时对古建筑进行分隔保护的方法。Ancient buildings refer to the civil buildings and public buildings with historical significance before the founding of the People's Republic of China. Many ancient towns and most large cities still retain some ancient buildings. Architectural culture is part of traditional Chinese culture. Compared with reinforced concrete, fire is prone to occur. At the same time, ancient buildings are often built densely. When the fire starts to be extinguished, the fire has spread. Therefore, a method that can separate and protect ancient buildings is required when a fire occurs. .
发明内容SUMMARY OF THE INVENTION
本发明的目的是要提供一种古建筑水幕分隔保护方法,可以使古建筑群在发生火灾时通过水幕喷头将其他古建筑分隔开,减少火灾蔓延到其他古建筑。The purpose of the present invention is to provide a water curtain separation and protection method for ancient buildings, which can separate other ancient buildings through water curtain nozzles when a fire occurs in ancient buildings, and reduce the spread of fire to other ancient buildings.
为实现上述目的,本发明采用的技术方案如下:包括以下步骤:To achieve the above object, the technical scheme adopted in the present invention is as follows: comprise the following steps:
步骤S1:将多个古建筑按具体信息进行区域划分;Step S1: Divide a plurality of ancient buildings into regions according to specific information;
步骤S2:根据划分的古建筑区域铺设供水管路,并在供水管路上设置水幕生成装置;Step S2: laying a water supply pipeline according to the divided ancient building areas, and setting a water curtain generating device on the water supply pipeline;
步骤S3:设置与供水管网连通的储水空间,并设置有用于补充水源的补水装置;Step S3: setting a water storage space connected to the water supply pipe network, and setting a water replenishing device for replenishing the water source;
步骤S4:在水幕生成装置旁设置有集水回收装置,所述集水回收装置的排水端连通储水空间;Step S4: a water collection and recovery device is arranged beside the water curtain generating device, and the drain end of the water collection and recovery device is connected to the water storage space;
步骤S5:在各个区域安装有多个用于检测温度和烟雾浓度的装置,当部分区域温和烟雾浓度异常时,增加该区域的水幕强度;Step S5: multiple devices for detecting temperature and smoke concentration are installed in each area, and when the temperature and smoke concentration in some areas are abnormal, the intensity of the water curtain in this area is increased;
步骤S6:通过检测温度和烟雾浓度的装置判断古建筑发生火灾区域,启动该区域水幕生成装置将火灾范围分隔,对于部分火势较大的部分增加水幕强度。Step S6: Determine the fire area of the ancient building through the device for detecting temperature and smoke concentration, activate the water curtain generating device in this area to separate the fire range, and increase the water curtain intensity for some parts with relatively large fire intensity.
进一步的,所述步骤S1中的具体信息包括古建筑的位置信息、结构信息、古建筑之间的密度信息以及其他会影响区域划分的相关信息。Further, the specific information in the step S1 includes the location information, structure information, density information between the ancient buildings, and other related information that will affect the area division of the ancient buildings.
进一步的,所述步骤S2中的供水管路之间组成一个供水管网,所述供水管网通过供水连通管与所述储水空间连通,所述供水连通管上设置有供水水泵,所述水幕生成装置由多个排布在供水管网上的水幕喷头组成。Further, a water supply pipe network is formed between the water supply pipes in the step S2, and the water supply pipe network is communicated with the water storage space through a water supply communication pipe, and a water supply water pump is arranged on the water supply communication pipe. The water curtain generating device consists of a plurality of water curtain nozzles arranged on the water supply network.
进一步的,所述步骤S3中的储水空间为储水罐,所述储水罐预埋在地下,所述储水罐与所述供水连通管连通,所述补水装置包括设置在储水罐内部的水位监测装置和补水管,所述补水管的两端分别与储水罐和补水源连通,所述补水管上设置有补水水泵。Further, the water storage space in the step S3 is a water storage tank, the water storage tank is pre-buried in the ground, the water storage tank is communicated with the water supply communication pipe, and the water replenishing device comprises a water storage tank disposed in the water storage tank. An internal water level monitoring device and a water replenishing pipe are connected with the water storage tank and the replenishing water source respectively at both ends, and a replenishing water pump is arranged on the water replenishing pipe.
进一步的,所述步骤S4中的集水回收装置由聚水槽、回水管网和回水连通管组成,所述聚水槽设置在所述水幕喷头两侧,所述回水管网与所述供水管网排布结构相同,所述聚水槽底部连通所述回水管网,所述回水连通管的两端分别连通回水管网和所述储水罐上段,所述回水连通管上设置有回水水泵。Further, the water collection and recovery device in the step S4 is composed of a water collecting tank, a return water pipe network and a return water communication pipe, the water collecting tank is arranged on both sides of the water curtain nozzle, and the return water pipe network and the water supply The arrangement of the pipe network is the same, the bottom of the water collecting tank is connected to the return water pipe network, the two ends of the return water communication pipe are respectively connected to the return water pipe network and the upper section of the water storage tank, and the return water communication pipe is provided with a Return water pump.
进一步的,所述步骤S5中的检测温度和烟雾浓度的装置分别为温度传感器和烟雾传感器,其中各区域所述古建筑的多个位置上均设置有所述温度传感器和烟雾传感器。Further, the devices for detecting temperature and smoke concentration in step S5 are a temperature sensor and a smoke sensor, respectively, wherein the temperature sensor and the smoke sensor are provided at multiple positions of the ancient buildings in each area.
进一步的,所述储水罐内部为两层,分别为设置在底层的储水区,和位于顶层的缓冲区,所述供水连通管和所述补水管均与所述储水区连通,所述回水连通管与所述缓冲区连通,所述储水区和所述缓冲区之间设置有二次过滤装置。Further, the inside of the water storage tank has two layers, which are a water storage area located on the bottom layer and a buffer area located on the top layer. The return water communication pipe is communicated with the buffer zone, and a secondary filter device is arranged between the water storage zone and the buffer zone.
进一步的,所述缓冲区上方设置有一次过滤装置。Further, a primary filtering device is arranged above the buffer zone.
进一步的,所述聚水槽上设置有过滤网,所述聚水槽设置有便于水流聚集的倾斜面。Further, the water collecting tank is provided with a filter screen, and the water collecting tank is provided with an inclined surface which is convenient for water flow to gather.
进一步的,所述供水连通管的管径为DN20,所述供水水泵的压力不低于0.5Mpa,所述水幕喷头为扇形水幕喷头,喷洒角度为110°,所述水幕喷头的接口直径为DN15,所述补水水泵的压力不低于0.3Mpa。Further, the diameter of the water supply communication pipe is DN20, the pressure of the water supply water pump is not less than 0.5Mpa, the water curtain nozzle is a fan-shaped water curtain nozzle, and the spray angle is 110°, and the interface of the water curtain nozzle is 110°. The diameter is DN15, and the pressure of the water supply water pump is not lower than 0.3Mpa.
与现有技术相比,本发明具有以下有益效果:Compared with the prior art, the present invention has the following beneficial effects:
(1)在本发明中,通过在古建筑群之间间隔的地下排布有供水管路并设置有水幕喷头,使其可以在发生火灾时通过喷射出水幕,防止局部火灾蔓延,减少损失,利于火灾的扑灭;(1) In the present invention, water supply pipelines and water curtain nozzles are arranged underground at intervals between ancient buildings, so that when a fire occurs, the water curtain can be sprayed to prevent the spread of local fires and reduce losses , which is conducive to the extinguishing of fires;
(2)在本发明中,为供应水幕产生的水源充足,在地下设置有储水罐,储水罐中设置有水位检测装置,方便及时补充,确保火灾发生时水源充足,同时储水罐上方设置有一次过滤装置,下沉到地里的水源通过过滤后进入到储水罐中的缓冲区之后进行二次过滤后进入到储水罐待使用,其次在水幕喷头处设置回水管网,使水幕喷头输出的水通过集水装置回流到储水罐的缓冲区中进行过滤处理,并在平时对雨水、污水等进行过滤回收,实现资源再利用,通过对收集的水进行多次过滤,确保可以在产生水幕时不会堵塞水幕喷头,并对水源的供应采用多种方式,节能环保。(2) In the present invention, in order to supply the water curtain with sufficient water source, a water storage tank is arranged underground, and a water level detection device is arranged in the water storage tank, which is convenient for timely replenishment, and ensures that the water source is sufficient when a fire occurs, and the water storage tank is at the same time. There is a primary filter device above, the water source sinking into the ground enters the buffer zone in the water storage tank after filtering, and then enters the water storage tank for use after secondary filtration. , so that the water output by the water curtain nozzles is returned to the buffer zone of the water storage tank through the water collecting device for filtering treatment, and the rainwater, sewage, etc. are filtered and recycled in peacetime to realize the reuse of resources. Filtration ensures that the water curtain nozzles will not be blocked when the water curtain is generated, and various methods are adopted for the supply of water sources, which are energy-saving and environmentally friendly.
(3)在本发明中,通过在古建筑上方设置有温度传感器和烟雾传感器,可以实现对温度、烟雾过高的区域增大水幕喷头的功率,加强局部水幕的强度,合理利用资源。(3) In the present invention, by arranging a temperature sensor and a smoke sensor above the ancient building, the power of the water curtain nozzle can be increased in the area with excessive temperature and smoke, the strength of the local water curtain can be strengthened, and the resources can be used rationally.
附图说明Description of drawings
图1为本发明中的正视结构示意图;Fig. 1 is the front view structure schematic diagram in the present invention;
图2为本发明中的剖视结构示意图;Fig. 2 is the sectional structure schematic diagram in the present invention;
图3为本发明中的剖视结构示意图;Fig. 3 is the sectional structure schematic diagram in the present invention;
其中,附图标记对应的名称为:Among them, the names corresponding to the reference signs are:
古建筑1、烟雾传感器101、温度传感器102、供水管网2、供水连通管201、储水罐202、水位监测装置203、储水区204、二次过滤装置205、一次过滤装置206、供水水泵207、缓冲区208、水幕喷头3、聚水槽4、过滤网401、回水管网5、回水连通管501、回水水泵502、补水管6、补水水泵601、Ancient building 1,
具体实施方式Detailed ways
下面结合附图说明和实施例对本发明作进一步说明,本发明的方式包括但不仅限于以下实施例。The present invention will be further described below with reference to the accompanying drawings and examples, and the modes of the present invention include but are not limited to the following examples.
实施例1Example 1
参考图1-图3所示,本实施例中所述的一种古建筑水幕分隔保护方法,包括Referring to Fig. 1-Fig. 3, a water curtain separation protection method for ancient buildings described in this embodiment includes the following steps:
步骤S1将多个古建筑1按具体信息进行区域划分,具体信息包括古建筑1的位置信息、结构信息、古建筑1之间的密度信息以及其他会影响区域划分的相关信息,通过将古建筑1之间尽可能地分隔成多个区域以便于后续发生火灾时进行火灾分隔和局部保护;Step S1 divides a plurality of ancient buildings 1 into regions according to specific information, and the specific information includes the location information, structure information, density information between ancient buildings 1 and other relevant information that will affect the regional division. 1 is divided into multiple areas as much as possible to facilitate fire separation and local protection in the event of subsequent fires;
步骤S2根据划分的古建筑区域铺设供水管路,并在供水管路上设置水幕生成装置,将划分出的区域间隔间设置的多个供水管路组成一个供水管网2,供水管网2通过供水连通管201与储水空间连通,并在供水连通管201上设置有水泵压力不低于0.5Mpa的供水水泵207,水幕生成装置由多个排布在供水管网2上的水幕喷头3组成,水幕喷头3为扇形水幕喷头,喷洒角度110°,接口直径DN15,水幕喷头3的排布要使喷出的水幕无间断处,并且多个水幕喷头3通过水幕系统控制阀组统一控制,供水管网2预埋在地表附近,水幕喷头3设置在墙角地面下,不会对正常的通行造成影响,同时也防止水幕喷头3被损坏。Step S2 lays water supply pipelines according to the divided ancient building areas, and installs a water curtain generating device on the water supply pipelines, and forms a water
步骤S3设置与供水管网连通的储水空间,并设置有用于补充水源的补水装置,储水空间为储水罐202,储水罐202预埋在古建筑的地下,当古建筑的条件不允许埋设储水罐202时,将储水罐202埋设在古建筑外部或设立在地面,储水罐202与供水连通管201连通,供水连通管201为DN20的水管,补水装置包括设置在储水罐202内部的水位监测装置203和补水管6,补水管6的两端分别与储水罐202和补水源连通,补水管6上设置有用于抽取水源的水泵压力不低于0.3Mpa的补水水泵601;In step S3, a water storage space communicated with the water supply pipe network is provided, and a water replenishing device for supplementing the water source is provided. The water storage space is a
步骤S4在水幕生成装置旁设置有集水回收装置,集水回收装置的排水端连通储水空间;集水回收装置由聚水槽4、回水管网5和回水连通管501组成,聚水槽4设置在水幕喷头3的两侧,回水管网5与供水管网2排布结构相同,聚水槽4底部直接连通回水管网5,回水连通管501的两端分别连通回水管网5和储水罐202上段,回水连通管501上设置有提供动力的回水水泵502,聚水槽4上设置有过滤网401,滤网401为50目金属丝网,可以对流水进行简单的过滤,防止造成堵塞,聚水槽4还设置有便于水流聚集的倾斜面以便于水流的聚集,聚水槽4可以将水幕喷头3向上方喷水时回落的水重新回收并流入到回水管网5中,同时在下雨时可以将地面上的流水回收到回水管网5中,起到对储水罐202内部的储水进行补充的作用。In step S4, a water collection and recovery device is arranged next to the water curtain generating device, and the drain end of the water collection and recovery device is connected to the water storage space; 4 is arranged on both sides of the
储水罐202内部为两层,分别为设置在底层的储水区204,和位于顶层的缓冲区208,其中供水连通管201和补水管6均与储水区204连通,回水连通管501与缓冲区208连通,储水区204和缓冲区208之间设置有二次过滤装置205,缓冲区208上方设置有一次过滤装置206,一次过滤装置206可以将下雨时地面渗透的水源过滤后进入到缓冲区208内,一次过滤装置206和二次过滤装置205均由活性炭、石英砂以及过滤网组成,从回水管网中回收的水先进入到缓冲区208内再经过二次过滤装置205过滤后进入到储水区204待用。The interior of the
步骤S5在各个区域安装有多个用于检测温度和烟雾浓度的装置,当部分区域温和烟雾浓度异常时,增加该区域的水幕强度,用于检测温度和烟雾浓度的装置分别为温度传感器102和烟雾传感器101,为更好的对古建筑的不同方位进行监测,在其中各区域古建筑的多个位置上均设置有温度传感器102和烟雾传感器101,为方便监测向上升起的烟雾,烟雾传感器101设置在古建筑的上方,当其中某个区域的温度超过设定的限制值,就会将信息传输给控制装置进行火灾报警,同时在火灾中当某一区域的烟雾传感器101所检测的浓度超过其他着火点的浓度时,会将火灾信息传输给水幕系统控制阀组中对位于附近的水幕喷头加压,增强水幕,防止火势蔓延到其他位置。In step S5, a plurality of devices for detecting temperature and smoke concentration are installed in each area. When the temperature and smoke concentration in some areas are abnormal, the intensity of the water curtain in this area is increased. The devices for detecting temperature and smoke concentration are
步骤S6通过检测温度和烟雾浓度的装置判断古建筑发生火灾区域,启动该区域水幕生成装置将火灾范围分隔,对于部分火势较大的部分增加水幕强度。In step S6, the device for detecting temperature and smoke concentration determines the fire area of the ancient building, activates the water curtain generating device in this area to separate the fire range, and increases the water curtain intensity for some parts with relatively large fire intensity.
本发明使用时,当温度传感器和烟雾传感器检测到异常时系统判定为可能发生火灾的情况下,进行报警并启动该区域的水幕喷头,形成一个将火灾围绕住的分隔水幕,同时根据不同位置的温度和烟雾浓度设定不同位置的水幕强度,并将水幕喷头喷出的水进行回收重新利用,并通过地下设置的储水罐提前将水源收集储存,在储水罐内的水位下降时,启动补水装置连通消防泵、水井等水源保证水幕喷头水源的持续供应。When the present invention is used, when the temperature sensor and the smoke sensor detect abnormality and the system determines that a fire may occur, the system will give an alarm and start the water curtain nozzles in the area to form a separate water curtain that surrounds the fire. The temperature and smoke concentration of the location set the strength of the water curtain at different locations, and the water sprayed by the water curtain nozzle is recycled and reused, and the water source is collected and stored in advance through the underground water storage tank. When descending, start the water replenishment device to connect the fire pump, water well and other water sources to ensure the continuous supply of water for the water curtain sprinkler.
上述实施例仅为本发明的优选实施方式之一,凡在本发明的主体设计思想和精神上作出的毫无实质意义的改动或润色,其所解决的技术问题仍然与本发明一致的,均应当包含在本发明的保护范围之内。The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and all the changes or embellishments made in the main design idea and spirit of the present invention that have no substantial meaning, and the technical problems solved by them are still consistent with the present invention. should be included within the protection scope of the present invention.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210628720.7A CN115025429A (en) | 2022-06-06 | 2022-06-06 | Water curtain separation and protection method for ancient buildings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210628720.7A CN115025429A (en) | 2022-06-06 | 2022-06-06 | Water curtain separation and protection method for ancient buildings |
Publications (1)
Publication Number | Publication Date |
---|---|
CN115025429A true CN115025429A (en) | 2022-09-09 |
Family
ID=83122854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210628720.7A Pending CN115025429A (en) | 2022-06-06 | 2022-06-06 | Water curtain separation and protection method for ancient buildings |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115025429A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030196822A1 (en) * | 2002-04-22 | 2003-10-23 | K. Lau David M. | Life saving fire exit method and apparatus |
CN201921354U (en) * | 2011-01-30 | 2011-08-10 | 张福东 | Recirculation type fire control water curtain system equipment |
CN106839247A (en) * | 2017-02-22 | 2017-06-13 | 佛山赛威光电技术有限公司 | A kind of aeration structure of underground parking garage |
CN106943690A (en) * | 2017-03-20 | 2017-07-14 | 张家港江苏科技大学产业技术研究院 | Discontinuous external wall of high-rise building is monitored and fire-fighting system automatically |
CN209339806U (en) * | 2018-07-24 | 2019-09-03 | 无锡志诚特种门窗有限公司 | A kind of fire resisting shutter inhibiting fire spreading |
CN114432616A (en) * | 2021-12-24 | 2022-05-06 | 南京能启能电子科技有限公司 | Automobile parking space fire detection and obstruction system and method |
-
2022
- 2022-06-06 CN CN202210628720.7A patent/CN115025429A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030196822A1 (en) * | 2002-04-22 | 2003-10-23 | K. Lau David M. | Life saving fire exit method and apparatus |
CN201921354U (en) * | 2011-01-30 | 2011-08-10 | 张福东 | Recirculation type fire control water curtain system equipment |
CN106839247A (en) * | 2017-02-22 | 2017-06-13 | 佛山赛威光电技术有限公司 | A kind of aeration structure of underground parking garage |
CN106943690A (en) * | 2017-03-20 | 2017-07-14 | 张家港江苏科技大学产业技术研究院 | Discontinuous external wall of high-rise building is monitored and fire-fighting system automatically |
CN209339806U (en) * | 2018-07-24 | 2019-09-03 | 无锡志诚特种门窗有限公司 | A kind of fire resisting shutter inhibiting fire spreading |
CN114432616A (en) * | 2021-12-24 | 2022-05-06 | 南京能启能电子科技有限公司 | Automobile parking space fire detection and obstruction system and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206528459U (en) | A kind of construction site exports automatic car washing device | |
CN103469817A (en) | Existing subway station main structure broadening construction method | |
CN102061920B (en) | Exploring method of water liberation working surface of water-enriched mine area | |
CN103215937B (en) | Multilayer aquifer structure-based rainwater recharging underwater system | |
CN106758800A (en) | A kind of overpass system for reclaiming rainwater and its construction method | |
CN105041243B (en) | Horizontal well concentric oil pipe continuous negative pressure sand pumping process pipe column | |
CN114557262A (en) | An ecological slope construction system based on sponge concept | |
CN108266912A (en) | A kind of recharge system and recharge method using shallow layer geothermal energy | |
CN204601899U (en) | The dust-proof control system in a kind of job site | |
CN111485928B (en) | Construction is with preventing watertight fittings that collapses | |
CN115025429A (en) | Water curtain separation and protection method for ancient buildings | |
CN111139919A (en) | A kind of municipal road construction structure and construction method thereof | |
CN209482078U (en) | An integrated system for road permeation and water storage | |
CN209437933U (en) | A kind of fire hydrant pipeline structure | |
CN202090637U (en) | Parking lot for city old residential areas | |
CN104775500A (en) | Building construction rainwater and wastewater recycling system | |
CN208097666U (en) | A kind of purification system avoiding civil construction dust from construction sites | |
CN102660979B (en) | Large-caliber shallow well | |
CN105672336B (en) | A kind of deformable filter assemblies of well-points dewatering | |
CN204941391U (en) | Horizontal well concentric oil pipe continuous negative pressure sand pumping process pipe column | |
CN209011198U (en) | A kind of situ of drilling well rainwater-collecting spraying fire-extinguishing system | |
CN211037246U (en) | Build sponge city regulation pond that has infiltration and recycle function between pile foundation | |
CN221442643U (en) | Cross-tunnel fire-fighting reservoir applied in highway tunnel | |
CN210542968U (en) | Temporary fire fighting system of super high-rise building in construction process | |
CN114949692A (en) | Ancient building fire extinguishing system based on water curtain shielding effect |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220909 |
|
RJ01 | Rejection of invention patent application after publication |