CN201780715U - Demonstration system for fire-fighting teaching - Google Patents
Demonstration system for fire-fighting teaching Download PDFInfo
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- CN201780715U CN201780715U CN2010201833537U CN201020183353U CN201780715U CN 201780715 U CN201780715 U CN 201780715U CN 2010201833537 U CN2010201833537 U CN 2010201833537U CN 201020183353 U CN201020183353 U CN 201020183353U CN 201780715 U CN201780715 U CN 201780715U
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Abstract
The utility model relates to a demonstration system for fire-fighting teaching, which is used for teaching experiments of water supply and sewerage major in universities and colleges and can also serve as a simulation training facility for fire-fighting demonstration. The demonstration system comprises a fire hydrant system and an automatic water-spraying fire-extinguishing system which share the same water supply facility, a fire-fighting water supply main (7) extends in front of alarm valves of the automatic water-spraying fire-extinguishing system, one end of the fire-fighting water supply main (7) is communicated with a fire hydrant box (10) through a fire hydrant water supply pipe (9), the other end is communicated with a deluge alarm valve, a pre-action alarm valve, a dry-type alarm valve and a wet-type alarm valve respectively through the automatic water-spraying fire-extinguishing system and supplies water for the automatic water-spraying fire-extinguishing system, and the alarm valves are connected with a water distribution pipe network of the automatic water-spraying fire-extinguishing system after water discharge. The system can provide an experimental demonstration platform for practice teaching of students and training of professional fire-fighting technicians, and enhance the recognition and comprehension of students on fire extinguishing technology and equipment, thereby having significant practical application value.
Description
Technical field
The utility model relates to a kind of fire-fighting teaching demonstration system, and this system can be used for each universities and colleges' water supply and drainage specialty and carry out education experiment, also can be used as fire-fighting analog demenstration training facilities.
Background technology
Along with the raising of science and technology development and living standards of the people, structural fire fighting (fire-fighting) system embodies its singularity and importance day by day as the important component part of water supply-drainage discipline, is subjected to the common concern of society.
But it is pitiably little that we really learn time of structural fire fighting (fire-fighting) system at present, and fire-fighting teaching is extensive inadequately, and is not deep enough, only payes attention to the knowwhy education activities, and ignore the cultivation of actual operational capacity.Therefore, the student for the understanding of fire-fighting fire extinguishing technology and equipment relevant knowledge not enough, the ability of practice is also more weak, the serious present situation that disconnects of learning content and real work occurred, talent's scarcity is difficult to satisfy the demand of society.
It is reported that up to the present, China does not have a university to be provided with the school duty room of special structural fire fighting (fire-fighting) system.Therefore lack a cover complete offer the required teaching simulation system of this experimental technique.
The utility model content
The purpose of this utility model is to provide a kind of fire-fighting teaching demonstration system, and this system can provide the experimental demonstration platform for student's practical teaching or even fire-fighting professional and technical personnel's training, has important application value.
To achieve these goals, the utility model has been taked following technical scheme.This fire-fighting teaching demonstration system combines hydrant system dexterously with automatic sprinkler system.Specifically comprise water supply part, hydrant system, automatic sprinkler system and electric control system.Wherein: described water supply part comprises water tank 1, the first water pump 2-1, the second water pump 2-2, stabilized pressure pump 3, safe backwater pipeline section 4, fire water-supply pipe 5, stabilized pressure pump feed pipe 6, fire fighting supply main 7 and fire pump adapter 8, the first water pump 2-1, the water inlet of the second water pump 2-2 and stabilized pressure pump 3 all is connected with water tank 1, in water tank 1, fetch water, the water delivering orifice of the first water pump 2-1 and the second water pump 2-2 all is connected with fire fighting supply main 7 by fire water-supply pipeline section 5, the water delivering orifice of stabilized pressure pump 3 is connected with fire fighting supply main 7 by stabilized pressure pump water supply pipeline section 6, and fire pump adapter 8 is connected with fire fighting supply main 7; One end of safe backwater pipeline section 4 is connected with fire water-supply pipeline section 5, and the other end is connected with water tank 1, and tensimeter and safety valve are installed on backwater pipeline section 4, and ball float is housed in the water tank.
Described hydrant system comprises hydrant feedwater pipeline section 9 and hydrant 10, and hydrant 10 is connected with fire fighting supply main 7 by hydrant feedwater pipeline section 9.
Described automatic sprinkler system comprises automatic sprinkler system water main 11, alarm valve 12 drenches with rain, preact alarm valve 13, dry type alarm valve 14, wet alarm valve 15, distributing main, sparge pipe 18, water flow indicator 20, automatic sprinkler 21, electric-powered air release valve 22, end water testing device 23, the demonstration preceding solenoid valve 24 of shower nozzle, demonstration shower nozzle 25, the manual fire alarm call point 29 that is connected with preact alarm valve group 13, and be arranged in the fire detector 30 that scene of fire to be detected is used for the detection of fires signal, heat fire detector 31 and smoke fire detector 32.Wherein: automatic sprinkler system water main 11 is connected with fire fighting supply main 7, alarm valve 12 drenches with rain, preact alarm valve 13, one end of dry type alarm valve 14 and wet alarm valve 15 all is connected with automatic sprinkler system water main 11 by pipeline, the other end all is connected with sparge pipe 18 by distributing main 17, water flow indicator 20 is installed on the distributing main 17, automatic sprinkler 21, end water testing device 23, demonstration with shower nozzle 25 respectively the range pipe by separately be connected with sparge pipe 18, demonstrating with shower nozzle 25 and being communicated with of sparge pipe 18 solenoid valve (24) being installed on the arm, can manual unlocking or close by solenoid control switch 34, be connected with electric-powered air release valve 22 at the end of sparge pipe 18.
Described electric control system comprises fire alarm control unit, XQB control box 27 and the float-type liquid level controller 33 that is connected with ball float in the water tank in the water system, wherein: the first water pump 2-1 in the automatic sprinkler system, the second water pump 2-2 all links to each other with fire alarm control unit by XQB control box 27 with stabilized pressure pump 3, hose saddle button 28, float-type liquid level controller 33, and in the automatic sprinkler system the alarm valve 12 that drenches with rain, preact alarm valve 13, dry type alarm valve 14, wet alarm valve 15, water flow indicator 20, electric-powered air release valve 22, solenoid valve 24, manual fire alarm call point 29, fire detector 30, heat fire detector 31 and smoke fire detector 32 all link with fire alarm control unit.
The utility model has reacted the structure of fire-fighting system vividly and has formed by the actual displaying of real equipment, has realized the system's control of experimental facilities and the information interaction of actual engineering scene.Can carry out fire-fighting overall process demonstrations such as water pump water supply, shower nozzle water spray, fire protection warning, automatic control.For the teaching of fire-fighting system provides real outdoor scene place to operate schools, help the knowwhy of the quick full appreciation of student, understanding, grasp fire-fighting system, have presence, the sense of reality.
Description of drawings
Fig. 1 the utility model entire system structural representation;
Fig. 2 the utility model system elevation drawing;
Fig. 3 the utility model system electrical control plane figure;
Among the figure: 1-water tank, 2-water pump, 3-stabilized pressure pump, 4-safety return pipe, 5-fire water-supply pipe, 6-stabilized pressure pump water supply pipeline section, 7-fire fighting supply main, 8-fire pump adapter, 9-hydrant feedwater pipeline section, 10-fire hydrant box, 11-automatic sprinkler system feed pipe, the 12-alarm valve group that drenches with rain, 13-preact alarm valve group, 14-dry type alarm valve group, 15-wet alarm valve group, 16-water distribution standpipe, 17-distributing main, 18-sparge pipe, the 19-range pipe, the 20-water flow indicator, 21-automatic sprinkler, 22-electric-powered air release valve, the 23-end water testing device, the 24-demonstration is demonstrated and is used shower nozzle, 26-fire alarm control unit with solenoid valve before the shower nozzle, 25-, 27-XQB control box, 28-hose saddle button, 29-manual fire alarm call point, 30-fire detector, the 31-heat detector, the 32-smoke detector, 33-float-type liquid level controller, 34-solenoid control switch.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
The one-piece construction of present embodiment can be divided into the two large divisions as shown in Figure 1, and the one, hydrant system, the 2nd, automatic sprinkler system.Wherein automatic sprinkler system comprises four kinds again, is respectively wet type, dry type, preact and deluge system.Present embodiment is with above-mentioned four kinds of automatic sprinkler systems and relatively independent hydrant system combination dexterously.
As shown in Figure 2, the shared water supply part of the hydrant system of native system and automatic sprinkler system.Water supply part comprises water tank 1, the first water pump 2-1, the second water pump 2-2, stabilized pressure pump 3, safe backwater pipeline section 4, fire water-supply pipeline section 5, stabilized pressure pump water supply pipeline section 6 and fire fighting supply main 7.Wherein: the water inlet of the first water pump 2-1 and the second water pump 2-2 all is connected with water tank 1, water delivering orifice all is connected with fire fighting supply main 7 by fire water-supply pipeline section 5, the first water pump 2-1 and the second water pump 2-2 provide the lasting water yield by fire water-supply pipe 5 to system from the water intaking of fire water box 1 bottom.The water inlet of stabilized pressure pump 3 is connected with water tank 1, the water delivering orifice of stabilized pressure pump 3 is connected with fire fighting supply main 7 by stabilized pressure pump water supply pipeline section 6, stabilized pressure pump 3 can supply water to water main 7 by stabilized pressure pump water supply pipeline section 6 from the water tank water intaking, can guarantee the stable of water supply network pressure like this.One end of safe backwater pipeline section 4 is connected with fire water-supply pipeline section 5, and the other end is connected with water tank 1, when the water supply side hypertonia, can open the effect of safety relief with the water backwater in the pipeline to water tank 1.On safety backwater pipeline section 4, tensimeter and safety valve are installed.
Hydrant system comprises hydrant feedwater pipeline section 9 and hydrant 10, and hydrant 10 is connected with fire fighting supply main 7 by hydrant feedwater pipeline section 9, and fire hydrant box contains hydrant, hose reel, hydrant valve, interface hydraulic giant and water band.
Automatic sprinkler system comprises feed pipe 11, alarm valve group 12 drenches with rain, preact alarm valve group 13, dry type alarm valve group 14, wet alarm valve group 15, water distribution standpipe 16, distributing main 17, sparge pipe 18, range pipe 19, water flow indicator 20, automatic sprinkler 21, electric-powered air release valve 22, end water testing device 23, the demonstration preceding solenoid valve 24 of shower nozzle, demonstration shower nozzle 25, wherein: automatic sprinkler system feed pipe 11 is connected with fire fighting supply main 7, alarm valve group 12 drenches with rain, preact alarm valve group 13, one end of dry type alarm valve group 14 and wet alarm valve group 15 all is connected with automatic sprinkler system feed pipe 11 by pipeline, the other end connects the distribution system of water supply, water flow indicator 20 is installed on the distributing main 17, automatic sprinkler 21, end water testing device 23, demonstration with shower nozzle 25 respectively the range pipe by separately be connected with sparge pipe 18, with shower nozzle 25 and being communicated with of sparge pipe 18 solenoid valve 24 being installed on the arm, be connected with electric-powered air release valve 22 in demonstration at the end of sparge pipe 18.Demonstration is used for imitating automatic sprinkler with shower nozzle 25 and opens.
Electric control system comprises fire alarm control unit, XQB control box 27 and float-type liquid level controller 33, and the central hub of electric control system is a fire alarm control unit 26.The first water pump 2-1 in the system, the second water pump 2-2 all links to each other with fire alarm control unit by XQB control box 27 with stabilized pressure pump 3, float-type liquid level controller 33, fire hydrant button 28 in the hydrant system, and in the automatic sprinkler system the alarm valve 12 that drenches with rain, preact alarm valve 13, dry type alarm valve 14, wet alarm valve 15, water flow indicator 20, electric-powered air release valve 22, solenoid valve 24, manual fire alarm call point 29, fire detector 30, heat fire detector 31 all links to each other with fire alarm control unit with smoke fire detector 32, float-type liquid level controller 33 is installed in the variation that is used for the monitoring water tank water level in the water tank, water level signal is become corresponding electric control signal, feed back to fire alarm control unit.
The terminal demonstration of the distribution system of water supply is with being provided with solenoid valve 24 before the shower nozzle, can manual unlocking or close by solenoid control switch 34.
Use this system can carry out following experiment:
The water facilities of deluge system, preact system, dry system, wet pipe system, the water spray pipe network behind the alarm valve are shared.
The a wet pipe system comprises: water supply part, wet alarm valve group, water spray pipe network, automatic sprinkler, water flow indicator, end water testing device, demonstration shower nozzle.
The b dry system comprises: water supply part, dry type alarm valve group, water spray pipe network, automatic sprinkler, water flow indicator, end water testing device, demonstration shower nozzle, charger (air compressor).
C preact system comprises: water supply part, preact alarm valve group, water spray pipe network, automatic sprinkler, water flow indicator, electric-powered air release valve, end water testing device, demonstration shower nozzle, charger (air compressor), preact switch board.
The d deluge system comprises: water supply part, the alarm valve group that drenches with rain, water spray pipe network, water flow indicator, demonstration shower nozzle.
Be full of the water that pressure is arranged in the feedwater piping of the hydrant system in the present embodiment system, have trace to reveal, can lean on stabilized pressure pump 3 to keep the water and the pressure of system as system.When fire, at first open fire hydrant box, connect interface, water band on request, hydraulic giant is aimed at burning things which may cause a fire disaster, open hydrant valve, hydraulic giant has the water ejection immediately.Be in the state of patrolling and examining at fire alarm control unit, and the first water pump 2-1 on the pneumatic installation water supply case, when the switch of the second water pump 2-2 is in automatic gear, when pressing fire hydrant button, starts fire extinguishing pump by hydrant and in pipeline, supply water.
The composition of the wet type that the automatic sprinkler system in the present embodiment system comprises, dry type, preact and deluge system has characteristics separately, all must be transferred to quasi-operating status after, just can demonstrate operation accordingly.To when will specifically demonstrating a certain cover independently during system, only need open the preceding water supply control valve (being the master control valve) of the preceding valve of corresponding alarm valve group, water supply control valve behind the valve can independently be demonstrated under the situation that the electric control system (comprising XQB control box, linkage type fire alarm control unit, detection parts etc.) of fire-fighting system is opened.
A is for wet type, dry system, only need the solenoid valve 24 before shower nozzle is used in the terminal demonstration of the manual unlocking distribution system of water supply, with the unlatching of imitation sealed sprinkler head, fire extinguishing in the pipe network water or the discharge of gas, wet alarm valve or dry type alarm valve before valve with valve after the pressure differential effect under open.
B can be by blowing cigarette to smoke fire detector, with the imitation condition of a fire for preact system and deluge system.Smoke fire detector transfers fire signal to electric signal, feeds back to fire alarm control unit, and fire alarm control unit sends steering order, with the electric opening of realize drenching with rain alarm valve, preact alarm valve.Certainly, at emergency also can manual unlocking drench with rain alarm valve and preact alarm valve.
The c deluge sprinkler system is different from wet type, dry type, preact system, belongs to a kind of of open sprinkler system, when demonstrating, keep the terminal demonstration of pipe network to be in normally open with shower nozzle.
In wet type, dry type, behind the preact or the alarm valve united opening that drenches with rain, stabilized pressure pump just can be opened automatically, big water gaging flows to the fire extinguishing pipe network through alarm valve, water flow indicator 20 actions, the indication conflagration area, the part current report to the police the warning water system machinery that is installed on the alarm valve group through the warning pipeline of alarm valve simultaneously, the pressure switch action, pressure switch is converted to electric signal with pressure signal, feed back to fire alarm control unit 26, fire alarm control unit 26 sends steering order and the final water pump that starts is fetched water from water tank, provides the lasting water yield and hydraulic pressure to whole fire-fighting system.
In addition, this cover fire-fighting system is furnished with the inflation of an air compressor as dry sprinkler system.And the preact system inflates, tonifying Qi is mainly finished simultaneously by air compressor and preact switch board.
When pressing fire hydrant button 28, fire alarm control unit 26 received signals are sent the water pump open command, and interlock starts the first water pump 2-1, the second water pump 2-2, fetches water in water tank, for hydrant system provides the lasting water yield.
When pressing manual fire alarm call point 29, fire alarm control unit 26 received signals, send steering order, electric opening preact alarm valve 13, electric-powered air release valve 22 are after preact alarm valve 13 is opened, alerting signal is fed back to fire alarm control unit 26, send the water pump open command, interlock starts the first water pump 2-1, the second water pump 2-2, in water tank, fetch water, for system provides the lasting water yield.
The annexation of the water system of the utility model system, water spray pipe network, hydrant and alarm valve, fire alarm system, robot control system(RCS) etc. are all installed according to national regulation, to guarantee that system meets the requirement of national regulation, it is technical accurate to guarantee, to reach the effect of realistic simulation demonstration.
Little in line with taking up an area of, economical and practical and can accomplish the end in view requirement, the water supply network of native system is provided with from left to right, hydrant and automatic sprinkler system common sparing water supply pipeline section, and before the alarm valve of automatic sprinkler system, separate, connect four alarm valve groups of fire hydrant box and automatic sprinkler system afterwards respectively.And the fire-fighting fire extinguishing pipe network of valve water outlet taking alarm (comprising water distribution standpipe, distributing main, sparge pipe, range pipe successively) is arranged by right-to-left, the demonstration of fire extinguishing pipe network end is installed in the water tank top with shower nozzle, so promptly saved the space, fully saved again and utilized the water source.Water facilities is the pump of 50 meters of two lifts, fetches water in water tank.Because two submersible pumps can be worked simultaneously, a whole set of fire-fighting system pipeline belongs to the fire-fighting system of low-rise building at same one deck, fire_fighting pipe network is less, and the loss of flood peak is less, and two water pumps can satisfy the water yield certain when supplying water, the requirement of hydraulic pressure, the Demonstrator Trials that therefore, can be used for a whole set of fire-fighting system.Also provide one of stabilized pressure pump in addition, when the fire-fighting system alarm valve is opened and before water pump started as yet, when the system pipeline internal pressure was not enough, stabilized pressure pump was opened automatically, kept the stable of fire-fighting water supply network internal pressure, and guaranteed to have enough water yields.Its effect is similar to elevated tank.Connected a wall type on the fire fighting supply main 7 and disappeared siamese fire department connection as water facilities.In addition, also respectively display showed ground type siamese fire department connection, underground type siamese fire department connection, outdoor above hydrant, outdoor flush hydrant.Simultaneously, the automatic sprinkler showed polytype, different operating temperatures is installed, as erect type, sagging type, abutment wall type shower nozzle on the fire-fighting fire extinguishing pipe network.
This device can allow the student observe fire fighting equipment and associated conduit, accessory intuitively, provides and the diverse teaching of classroom theory teaching, demo environment, gets twice the result with half the effort.Therefore, the utility model has reached its intended purposes, can be good at consolidating the knowwhy that the student acquires on the classroom, also can strengthen simultaneously the student on the classroom less than practical operative ability and engineering analysis ability, cultivated engineering consciousness, open up thinking, reached the teaching purpose of integrating theory with practice.
Claims (1)
1. fire-fighting teaching demonstration system is characterized in that: comprise water supply part, hydrant system, automatic sprinkler system and electric control system; Wherein: described water supply part comprises water tank (1), first water pump (2-1), second water pump (2-2), stabilized pressure pump (3), safe backwater pipeline section (4), fire water-supply pipe (5), stabilized pressure pump feed pipe (6), fire fighting supply main (7) and fire pump adapter (8), first water pump (2-1), the water inlet of second water pump (2-2) and stabilized pressure pump (3) all is connected with water tank (1), in water tank (1), fetch water, the water delivering orifice of first water pump (2-1) and second water pump (2-2) all is connected with fire fighting supply main (7) by fire water-supply pipeline section (5), the water delivering orifice of stabilized pressure pump (3) is connected with fire fighting supply main (7) by the stabilized pressure pump pipeline section (6) that supplies water, and fire pump adapter (8) is connected with fire fighting supply main (7); One end of safe backwater pipeline section (4) is connected with fire water-supply pipeline section (5), and the other end is connected with water tank (1), on backwater pipeline section (4) tensimeter and safety valve is installed, and float-type liquid level controller is housed in the water tank;
Described hydrant system comprises hydrant feedwater pipeline section (9) and hydrant (10), and hydrant (10) is connected with fire fighting supply main (7) by hydrant feedwater pipeline section (9);
Described automatic sprinkler system comprises automatic sprinkler system water main (11), alarm valve (12) drenches with rain, preact alarm valve (13), dry type alarm valve (14), wet alarm valve (15), distributing main, sparge pipe (18), water flow indicator (20), automatic sprinkler (21), electric-powered air release valve (22), end water testing device (23), the demonstration preceding solenoid valve (24) of shower nozzle, demonstration shower nozzle (25), the manual fire alarm call point (29) that is connected with preact alarm valve group (13), and the fire detector (30) that is used for the detection of fires signal, heat fire detector (31) and smoke fire detector (32), wherein: automatic sprinkler system water main (11) is connected with fire fighting supply main (7), the alarm valve group that drenches with rain (12), preact alarm valve group (13), one end of dry type alarm valve group (14) and wet alarm valve group (15) all is connected with automatic sprinkler system water main (11) by pipeline, the other end all is connected with sparge pipe (18) by distributing main (17), water flow indicator (20) is installed on the distributing main (17), automatic sprinkler (21), end water testing device (23), demonstration with shower nozzle (25) respectively the range pipe by separately be connected with sparge pipe (18), with shower nozzle (25) and being communicated with of sparge pipe (18) solenoid valve (24) being installed on the arm, be connected with electric-powered air release valve (22) in demonstration at the end of sparge pipe (18);
Described electric control system comprises fire alarm control unit and XQB control box (27), wherein: first water pump (2-1) in the system, second water pump (2-2) all links to each other with fire alarm control unit by XQB control box (27) with stabilized pressure pump (3), float-type liquid level controller (33), hose saddle button (28) in the hydrant system, and the alarm valve that drenches with rain (12) in the automatic sprinkler system, preact alarm valve (13), dry type alarm valve (14), wet alarm valve (15), water flow indicator (20), electric-powered air release valve (22), solenoid valve (24), manual fire alarm call point (29), fire detector (30), heat fire detector (31) all links to each other with fire alarm control unit with smoke fire detector (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201833537U CN201780715U (en) | 2010-04-30 | 2010-04-30 | Demonstration system for fire-fighting teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201833537U CN201780715U (en) | 2010-04-30 | 2010-04-30 | Demonstration system for fire-fighting teaching |
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| CN201780715U true CN201780715U (en) | 2011-03-30 |
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| CN2010201833537U Expired - Fee Related CN201780715U (en) | 2010-04-30 | 2010-04-30 | Demonstration system for fire-fighting teaching |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833883A (en) * | 2010-04-30 | 2010-09-15 | 北京工业大学 | Fire-fighting teaching demonstration system |
| CN106075789A (en) * | 2016-08-17 | 2016-11-09 | 浙江刚玉智能科技有限公司 | Fire-fighting simulation scene of a fire crossbeam |
| CN106530929A (en) * | 2016-09-29 | 2017-03-22 | 浙江大学滨海产业技术研究院 | Flow regulating and controlling model for water supply system, and application method of the same |
| CN107369370A (en) * | 2017-08-30 | 2017-11-21 | 兰州理工大学 | A kind of structural fire protection teaching mode |
| CN115779327A (en) * | 2022-11-30 | 2023-03-14 | 西安经发物业股份有限公司 | Fire-fighting water system training device |
-
2010
- 2010-04-30 CN CN2010201833537U patent/CN201780715U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833883A (en) * | 2010-04-30 | 2010-09-15 | 北京工业大学 | Fire-fighting teaching demonstration system |
| CN101833883B (en) * | 2010-04-30 | 2012-11-07 | 北京工业大学 | Fire-fighting teaching demonstration system |
| CN106075789A (en) * | 2016-08-17 | 2016-11-09 | 浙江刚玉智能科技有限公司 | Fire-fighting simulation scene of a fire crossbeam |
| CN106530929A (en) * | 2016-09-29 | 2017-03-22 | 浙江大学滨海产业技术研究院 | Flow regulating and controlling model for water supply system, and application method of the same |
| CN107369370A (en) * | 2017-08-30 | 2017-11-21 | 兰州理工大学 | A kind of structural fire protection teaching mode |
| CN115779327A (en) * | 2022-11-30 | 2023-03-14 | 西安经发物业股份有限公司 | Fire-fighting water system training device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20110430 |