CN102179022A - Performance testing device for actual watering density - Google Patents
Performance testing device for actual watering density Download PDFInfo
- Publication number
- CN102179022A CN102179022A CN 201110053838 CN201110053838A CN102179022A CN 102179022 A CN102179022 A CN 102179022A CN 201110053838 CN201110053838 CN 201110053838 CN 201110053838 A CN201110053838 A CN 201110053838A CN 102179022 A CN102179022 A CN 102179022A
- Authority
- CN
- China
- Prior art keywords
- water
- collecting tray
- collecting
- fuel
- performance testing
- 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.)
- Granted
Links
Images
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
The invention relates to a performance testing device for actual water-distributing density. The device comprises a water collecting system, an ignition combustion system, an air supply system, a data acquisition control system and a water supply system, wherein the water collecting system, the ignition combustion system and the air supply system are installed on a mobile frame and combined as an integral mobile unit; a control cable is connected to PLC (Programmable Logic Controller) and an industrial personal computer of the data acquisition control system through a concentrated junction box; the data acquisition control system is controlled by an upper industrial personal computer; and a programmable control relay contact of PLC starts up the ignition device for ignition, thus realizing automatic ignition of remote control, and automatic acquisition and processing of data. The device is compact in structure, small in floor area and high in degree of automation. The automatic data acquisition and processing of an ADD (actual delivered density) performance testing device is greatly improved. The device is suitable for the actual need of fire-fighting products for performance test and is of practicability and creativeness.
Description
Technical field
The present invention relates to the performance test apparatus of fire product, particularly a kind of actual water distribution density performance testing arrangement that is used for automatic sprinkler system shower nozzle series products.
Background technology
Actual cloth water density (ADD) performance testing device is to be used for the early stage actual water distribution density test equipment of response (ESFR) shower nozzle fast that suppresses of automatic sprinkler system.The ADD experimental rig is to one of main device of the research of ESFR shower nozzle, check, and this device determines actual watering density by collecting the water yield that can penetrate flame and thermal current arrival burning article surface of spurting from the ESFR shower nozzle.
At present, only there are three tame mechanisms to establish the ADD experimental rig abroad, i.e. U.S. FM laboratory (Factory Mutual Research), U.S. UL laboratory (Underwriters Laboratories Inc.) and European LPC laboratory (The Loss Prevention Council LPC Laboratories).
U.S. FM laboratory provides third party's test, assessment authentication and the approval mechanism of insurance products and service, and the content of approval and authentication comprises automatic sprinkler fire-extinguishing system, construction material, fixed fire extinguishing system, fuel gas equipment, fire hydrant and water band.The research that carry out at water sprinkling fire-distinguishing system aspects in U.S. FM laboratory, detection, standard are worked out, and are state-of-the-art in the world, the most authoritative at present.
U.S. UL laboratory be one detect and the checking Product Safety, independently, nonprofit organization, be found in 1894, the product public safety performance of having carried out more than 100 year detects.
Above-mentioned three breadboard (ADD) performance testing device situations contrast is as follows:
By contrast, above-mentioned three breadboard (ADD) performance testing devices are divided into fixed or portable two kinds from structure; The collecting water from runoff acquisition mode adopts the manual read to fetch data or the sensor collection;
Drainage pattern adopts hydraulic overturn draining or manual drainage; Sparking mode all adopts manual ignition.Can find that respectively there are pluses and minuses in three laboratories, external ADD device all adopts manual ignition, and most hand dippings that adopt read data, and automaticity is not high, and general volume is bigger, the degree of all the be unrealized automatic igniting of control far away, data automatic collecting, processing.
And the at present domestic report that development is not arranged as yet and use (ADD) performance testing device, domestic fire-fighting equipment research and the research of experimental unit on this project still are in blank, therefore, in conjunction with the existing equipment manufacture level of China, research and development can realize far controlling automatic igniting, data automatic collecting, processing, and compact conformation, (ADD) performance testing device that floor space is little is the actual needs of China's fire product performance test.
Summary of the invention
Purpose of the present invention is exactly for overcoming the deficiencies in the prior art, test the needs of the actual cloth water density of shower nozzle at the performance testing device of fire product, a kind of technical scheme that the ADD performance testing device of higher automaticity is arranged is provided, makes that testing arrangement reaches 1, certainty of measurement height, good operating stability, test favorable repeatability; 2, device can partly be dismantled, and is removable; 3, plant automation degree height; 4, the unit engineering cost is low.
The present invention realizes by such technical scheme: actual watering density (ADD) performance testing device, comprise collecting system, ignition combustion system, air feed system, data acquisition control system and water system, it is characterized in that, described collecting system comprises movable frame, some measurement buckets are installed on movable frame, each is measured, and bucket is suitable for reading to connect a water-collecting tray by aqueduct, water-collecting tray has whole bosh, the water-collecting tray disk body places bosh, the bosh import links to each other with cooling water pipeline, and bosh is provided with the spilling water outlet;
Measuring bucket is totally enclosed type, be provided with draining valve and sensor in the bucket bottom, sensor connects the analog quantity input module of PLC, and PLC communicates by letter with industrial computer, measure the water-collecting tray liquid level by fluid level transmitter, upper industrial computer signal handler calculates collecting water from runoff according to the water-collecting tray liquid level signal; And will calculate the collected water yield Value Data preservation of water-collecting tray, or reach the display demonstration;
Some measurement buckets evenly distribute and are installed on the movable frame, and each water-collecting tray is with corresponding with a measurement bucket;
Per four water-collecting trays are a water-collecting tray group, wherein the upper brim of each water-collecting tray along the upper brim of the water-collecting tray that all is adjacent along gapless connection;
Form the water-collecting tray matrix by several water-collecting tray groups; Leave the space between each water-collecting tray group;
On the movable frame of water-collecting tray matrix middle position, ignition combustion system is installed; Described ignition combustion system comprises fuel tank, petrolift, fuel pump deliver line, some fuel lances and nozzle, igniter; Petrolift is delivered to the fuel pressurization nozzle of fuel lance by fuel pump deliver line; Igniter adopts the high-voltage arc sparking mode; By the igniting of PLC programme-control relay contact starting ignition device, realize remote auto control;
Described fuel tank storage capacity is 1.12m
3, the fuel tank side is provided with the tubulose liquid level gauge, and the fuel that is provided with 200mm on fuel tank top adds the hole, in fuel tank bottom the tapping valve of DN20 is set, and top is provided with the spiracle of 26mm; By the fuel flow rate flowmeter sensor fuel flow rate is gathered; By pressure sensor fuel pressure is gathered;
Described fuel tank connects petrolift, and petrolift connects several fuel lances respectively by fuel pump deliver line, and each fuel lance connects a nozzle respectively;
Described ignition combustion system is provided with several fuel lances and nozzle altogether, and nozzle is fixedly mounted on water-collecting tray matrix top by support; It is being on the center of circle, the circle of diameter less than the water-collecting tray matrix length of side with water-collecting tray matrix center that described nozzle equidistantly distributes; Get 1 described nozzle separately and be placed in home position; It is the position of 15.2cm that all described nozzles all are fixedly mounted on distance set water pond vertical range suitable for reading;
Described ignition combustion system is provided with 9 fuel lances and 9 nozzles altogether, and 9 nozzles are fixedly mounted on water-collecting tray matrix top by support; Wherein to equidistantly distribute be that the center of circle, diameter are on the circle of 1.22m with water-collecting tray matrix middle position to 8 described nozzles; 1 described nozzle is placed in home position; It is the position of 15.2cm that 9 described nozzles are fixedly mounted on distance set water pond vertical range suitable for reading; Described nozzle outside is set with cooling jacket;
Described ignition combustion system is provided with 3 groups of igniters; The middle position of 3 groups of described igniters above relative 120 angular distribution of spending are installed in the water-collecting tray matrix, its horizontal level position and described nozzle horizontal level of living in coincide;
Described air feed system mainly comprises blower fan, volume damper and air feed pipe, airspeedometer and pressure sensor; Wherein the air feed pipe is installed on the water-collecting tray matrix middle position; The nozzle position of air feed pipe is lower than 3 described igniter horizontal levels of living in; The volume adjusting apparatus of DN200 is set at the ventilation shaft middle part; Wind pressure sensor and wind speed measuring device are set; By airspeedometer the combustion air air quantity is gathered; By pressure sensor the combustion air blast is gathered;
Described collecting system, ignition combustion system and air feed system are installed in and are combined into an integral movable type unit on the movable frame; The control cable of described collecting system, ignition combustion system and air feed system is connected to the PLC and the industrial computer of data acquisition control system by centralized junction box; Data acquisition control system is controlled device by upper industrial computer, constitutes Distributed Control System by communication interface, is implemented in line traffic control and bi-directional data and transmits;
Described water system is positioned at the top of collecting system, comprise furred ceiling, water pump, water supply network, water supply network divides two-layer up and down, main-supply and ring-type injector arm are installed on the furred ceiling, furred ceiling is that system's main-supply diameter is DN100, DN80 with top, furred ceiling is the ring-type injector arm with the lower part, and minimum diameter is DN50, and the distance between furred ceiling and the water-collecting tray matrix is adjustable.
The present invention is controlled system by upper industrial computer by data acquisition control system, light a fire by PLC programme-control relay contact starting ignition device, realize the automatic igniting of control far away, data automatic collecting, processing, the apparatus structure compactness, floor space is little, automaticity is high, making the degree of (ADD) performance testing device data automatic collecting, processing is to improve greatly, is fit to the actual needs of China's fire product performance test, has practicality and creativeness.
Description of drawings
Fig. 1, water-collecting tray plane;
Fig. 2, actual watering density performance testing arrangement front view;
Fig. 3, actual watering density performance testing arrangement vertical view;
Fig. 4, actual watering density performance testing arrangement vertical view.
Among the figure: 1. movable frame, 2. measure bucket, 3. fuel pump deliver line, 4. sensor, 5. castor, 6. water-collecting tray, 7. fuel lance, 8. air feed pipe, 9. igniter, 10. centralized junction box, 11. boshes.
The specific embodiment
For a more clear understanding of the present invention, describe the present invention in conjunction with the accompanying drawings and embodiments in detail:
As shown in Figures 1 to 4, in the present embodiment:
Install 20 on the movable frame 1 of collecting system and measure bucket 2, each described measurement bucket 2 is suitable for reading to connect a water-collecting tray 6 by aqueduct, water-collecting tray 6 has whole bosh 11, the disk body of water-collecting tray 6 places bosh 11, the import of bosh 11 links to each other with cooling water pipeline, and bosh 11 is provided with the spilling water outlet;
Measure 2 barrels of bottoms of bucket sensor 4 is set, sensor 4 connects the analog quantity input module of PLC, and PLC communicates by letter with industrial computer, and by the liquid level of fluid level transmitter measurement water-collecting tray 6, upper industrial computer signal handler calculates collecting water from runoff according to the liquid level signal of water-collecting tray 6; And will calculate the collected water yield Value Data preservation of water-collecting tray, or reach the display demonstration;
Wherein water-collecting tray 6, measurement bucket 2, bosh 11, centralized junction box 10 are installed in and are combined into an integral movable type unit on the movable frame 1.
20 described water-collecting trays 6 are suitable for reading to comprise two kinds of dimensions: comprise 16 535mm of being of a size of suitable for reading * 535mm, 4 water-collecting trays that are of a size of 535mm * 150mm suitable for reading.
Be illustrated in figure 1 as described water-collecting tray matrix plane schematic diagram, it is used for simulated combustion thing surface state, by aqueduct with water-collecting tray with measure bucket and be connected, the water of collecting is imported measures in the bucket.20 described measurement buckets 2 are used to measure by the collected water yield of water-collecting tray, and total measurement (volume) is about 240L, and measuring bucket 2 is totally enclosed type.Be provided with draining valve and sensor 4 in the bucket bottom.
Ignition combustion system comprises fuel tank, petrolift and fuel pump deliver line, fuel lance 7 and nozzle, igniter 9.Ignition combustion system utilize petrolift with the fuel pressurized delivered to fuel nozzle, utilize the high-pressure atomization principle to form vaporific fuel oil, automatic or manual starting ignition device 9 is directly lighted vaporific fuel oil.The air feed blower fan provides necessary combustion air, and 8 outlets of air feed pipe are positioned at the positive center of device.
The fuel tank storage capacity is 1.12m
3, the side is provided with the tubulose liquid level gauge, and the fuel that is provided with 200mm on fuel tank top adds the hole, is provided with the tapping valve of DN20 in fuel tank bottom, and top is provided with the spiracle of 26mm.Petrolift is the fuel pressuring device of ignition combustion system, is system's transfer the fuel, adopts the VFC mode and in conjunction with the method for fuel conduit backflow balance, can guarantee reliably working under the different flow of regulation and pressure.
9 cover fuel lance 7 and nozzles are set in device altogether, and 8 nozzles are distributed on the circle that diameter is 1.22m equidistantly, and 1 nozzle is positioned at the center of circle, and 9 cover nozzle distance water-collecting trays distance suitable for reading is 15.2cm.
The intended diameter of cooling jacket is: 12.7 mm, can satisfy the needs of the different rates of heat release of 500KW to 3000KW by the combination of different spray nozzles.Igniter 9 adopts the high-voltage arc sparking mode, is provided with 3 groups of igniters in the center of nozzle place circle, by the mist of oil of being lighted all nozzles that can ignite.
Air feed system mainly comprises blower fan, volume damper and ventilation shaft and measurement of correlation instrument, the volume adjusting apparatus of DN200 is set and wind pressure sensor is set and wind speed measuring device at the ventilation shaft middle part.
Data acquisition control system is made up of instrument switch board, industrial computer, measuring instrument, Displaying Meter, field control case etc., and what control system adopted is computer distributed control system, bus-organization.Each switching value signal is gathered and is handled by PLC, and analog signals is by intelligence instrument collection and processing, and PLC and intelligence instrument carry out exchanges data by communication bus and upper control computer, and instrument shows and mainly comprises:
Fuel flow rate and pressure are to be passed to by fuel flow rate flowmeter sensor and pressure sensor respectively to show instantaneous delivery and integrated flow value and force value on the Displaying Meter, also can be linked to by the communication interface of instrument on the upper industrial computer to show print management.
Upper industrial computer data acquisition display management partly comprises:
To system's comprehensive management, the PLC programmable controller controls is adopted in switching value control by upper industrial computer, and analog quantity adopts instrument to show, constitutes Distributed Control System by communication interface, is implemented in line traffic control and bi-directional data and transmits.System is provided with automatically, manual operating mode, even also can rely on PLC programmable controller and reserve instrument to realize system basic functions under off-line state, system is provided with fault alarm and processing unit, has improved the reliability of entire system.The upper industrial computer of system and be the colour chart of budget with all datamations that collect shows on CRT, obtains comprehensively picture data intuitively.
Water system comprises water pump, water supply network etc., and the Diesel engine pump group realizes Automatic Control by automatic control box.Special-purpose control system has adopted advanced automatic electronic and computer communication technology, system is had be quick on the draw, control stable, multiple functional, volume is light and handy, automaticity is high and can realize characteristics such as telecommunication.System can select manually, automatically, control model such as remote control.
Water supply network divides two-layer up and down, and furred ceiling is that system's main-supply diameter is DN100, DN80 with top, and furred ceiling is the ring-type injector arm with the lower part, and minimum diameter is DN50.
Compare with domestic and international same device, this device has adaptation standard extensive (as ISO6182, FM2008, UL1767, GB5135.9 etc.), can write down automatically, prints automatically and test parameter, the experimental rig part is detachable, removable, the experimental rig working stability, characteristics such as bulk testing precision height.
According to the above description, can realize the solution of the present invention in conjunction with art technology.
Claims (5)
1. actual watering density performance testing arrangement, comprise collecting system, ignition combustion system, air feed system, data acquisition control system and water system, it is characterized in that, described collecting system comprises movable frame, and some measurement buckets are installed on movable frame, and each is measured, and bucket is suitable for reading to connect a water-collecting tray by aqueduct, water-collecting tray has whole bosh, the water-collecting tray disk body places bosh, and the bosh import links to each other with cooling water pipeline, and bosh is provided with the spilling water outlet; Measuring bucket is totally enclosed type, be provided with draining valve and sensor in the bucket bottom, sensor connects the analog quantity input module of PLC, and PLC communicates by letter with industrial computer, measure the water-collecting tray liquid level by fluid level transmitter, upper industrial computer signal handler calculates collecting water from runoff according to the water-collecting tray liquid level signal; And will calculate the collected water yield Value Data preservation of water-collecting tray, or reach the display demonstration; Some measurement buckets evenly distribute and are installed on the movable frame, and each water-collecting tray is with corresponding with a measurement bucket; Per four water-collecting trays are a water-collecting tray group, wherein the upper brim of each water-collecting tray along the upper brim of the water-collecting tray that all is adjacent along gapless connection; Form the water-collecting tray matrix by several water-collecting tray groups; Leave the space between each water-collecting tray group; On the movable frame of water-collecting tray matrix middle position, ignition combustion system is installed; Described ignition combustion system comprises fuel tank, petrolift, fuel pump deliver line, some fuel lances and nozzle, igniter; Petrolift is delivered to the fuel pressurization nozzle of fuel lance by fuel pump deliver line; Igniter adopts the high-voltage arc sparking mode; By the igniting of PLC programme-control relay contact starting ignition device, realize remote auto control; Described fuel tank storage capacity is 1.12m
3, the fuel tank side is provided with the tubulose liquid level gauge, and the fuel that is provided with 200mm on fuel tank top adds the hole, in fuel tank bottom the tapping valve of DN20 is set, and top is provided with the spiracle of 26mm; By the fuel flow rate flowmeter sensor fuel flow rate is gathered; By pressure sensor fuel pressure is gathered; Described fuel tank connects petrolift, and petrolift connects several fuel lances respectively by fuel pump deliver line, and each fuel lance connects a nozzle respectively; Described ignition combustion system is provided with 3 groups of igniters; The middle position of 3 groups of described igniters above relative 120 angular distribution of spending are installed in the water-collecting tray matrix, its horizontal level position and described nozzle horizontal level of living in coincide; Described air feed system mainly comprises blower fan, volume damper and air feed pipe, airspeedometer and pressure sensor; Wherein the air feed pipe is installed on the water-collecting tray matrix middle position; The nozzle position of air feed pipe is lower than 3 groups of described igniter horizontal levels of living in; The volume adjusting apparatus of DN200 is set at the ventilation shaft middle part; Wind pressure sensor and wind speed measuring device are set; By airspeedometer the combustion air air quantity is gathered; By pressure sensor the combustion air blast is gathered; Described collecting system, ignition combustion system and air feed system are installed in and are combined into an integral movable type unit on the movable frame; The control cable of collecting system, ignition combustion system and air feed system is connected to the PLC and the industrial computer of data acquisition control system by centralized junction box; Data acquisition control system is controlled device by upper industrial computer, constitutes Distributed Control System by communication interface, is implemented in line traffic control and bi-directional data and transmits; Described water system is positioned at the top of collecting system, comprise furred ceiling, water pump, water supply network, water supply network divides two-layer up and down, main-supply and ring-type injector arm are installed on the furred ceiling, furred ceiling is system's main-supply with top, and furred ceiling is that the distance between ring-type injector arm furred ceiling and the water-collecting tray matrix is adjustable with the lower part.
2. actual according to claim 1 watering density performance testing arrangement is characterized in that, installs 20 on the movable frame of collecting system and measures bucket.
3. actual according to claim 1 watering density performance testing arrangement, it is characterized in that, 20 described water-collecting trays are suitable for reading to comprise two kinds of dimensions: the water-collecting tray that comprises 16 535mm of being of a size of suitable for reading * 535mm, 4 535mm of being of a size of suitable for reading * 150mm, 20 described measurement buckets are used to measure the collected water yield of water-collecting tray, and total measurement (volume) is 240L.
4. actual according to claim 1 watering density performance testing arrangement is characterized in that described ignition combustion system comprises 9 fuel lances and 9 nozzles, and 9 nozzles are fixedly mounted on water-collecting tray matrix top by support; Wherein to equidistantly distribute be that the center of circle, diameter are on the circle of 1.22m with water-collecting tray matrix middle position to 8 described nozzles; 1 described nozzle is placed in home position; It is the position of 15.2cm that 9 described nozzles are fixedly mounted on distance set water pond vertical range suitable for reading.
5. described according to claim 1 actual watering density performance testing arrangement, it is characterized in that furred ceiling is that system's main-supply diameter is DN100, DN80 with top, furred ceiling is the ring-type injector arm with the lower part, minimum diameter is DN50, and the distance between furred ceiling and the water-collecting tray matrix is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100538383A CN102179022B (en) | 2011-03-07 | 2011-03-07 | Performance testing device for actual watering density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100538383A CN102179022B (en) | 2011-03-07 | 2011-03-07 | Performance testing device for actual watering density |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102179022A true CN102179022A (en) | 2011-09-14 |
| CN102179022B CN102179022B (en) | 2012-07-04 |
Family
ID=44565424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100538383A Expired - Fee Related CN102179022B (en) | 2011-03-07 | 2011-03-07 | Performance testing device for actual watering density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102179022B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018275A (en) * | 2013-01-21 | 2013-04-03 | 公安部天津消防研究所 | Required delivery density performance testing device |
| CN115089913A (en) * | 2022-06-24 | 2022-09-23 | 应急管理部上海消防研究所 | Water collecting unit, automatic weighing water distribution test device and water distribution test method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6085585A (en) * | 1999-04-19 | 2000-07-11 | Factory Mutual Research Corporation | Sprinkler performance evaluation system |
| US20090188567A1 (en) * | 2008-01-28 | 2009-07-30 | Agf Manufacturing, Inc. | Fire suppression fluid circulation system |
-
2011
- 2011-03-07 CN CN2011100538383A patent/CN102179022B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6085585A (en) * | 1999-04-19 | 2000-07-11 | Factory Mutual Research Corporation | Sprinkler performance evaluation system |
| US20090188567A1 (en) * | 2008-01-28 | 2009-07-30 | Agf Manufacturing, Inc. | Fire suppression fluid circulation system |
Non-Patent Citations (1)
| Title |
|---|
| 《中国优秀硕士学位论文全文数据库 工程科技II辑》 20090815 张强 洒水喷头洒水分布性能测试装置的研究 , 第8期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018275A (en) * | 2013-01-21 | 2013-04-03 | 公安部天津消防研究所 | Required delivery density performance testing device |
| CN103018275B (en) * | 2013-01-21 | 2014-08-13 | 公安部天津消防研究所 | Required delivery density performance testing device |
| CN115089913A (en) * | 2022-06-24 | 2022-09-23 | 应急管理部上海消防研究所 | Water collecting unit, automatic weighing water distribution test device and water distribution test method thereof |
| CN115089913B (en) * | 2022-06-24 | 2023-01-10 | 应急管理部上海消防研究所 | Water collecting unit, automatic weighing water distribution test device and water distribution test method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102179022B (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179022B (en) | Performance testing device for actual watering density | |
| CN102062410B (en) | Method for controlling flow of simulation fire source | |
| CN101576521A (en) | Device for testing explosion, spreading and explosion suppression characteristics of inflammable gas and dust | |
| CN202693544U (en) | Battery combustion tester | |
| CN102072812A (en) | Test device for water sprinkling distribution performance | |
| CN102444910A (en) | Combustion control system | |
| CN201969234U (en) | Actual delivered density performance testing device | |
| CN211877899U (en) | A test device for verifying cable fire prevention waterproof performance | |
| CN204786530U (en) | Gas utensil gas consumption real time monitoring and bad news gas total amount monitored control system | |
| CN105822900A (en) | System for monitoring amount of residual liquefied gas in gas cylinder | |
| CN105698227A (en) | Household safe and intelligent fuel gas stove and control method thereof | |
| CN201897579U (en) | Flow control device for simulated fire brand | |
| CN204422224U (en) | " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation | |
| CN201126688Y (en) | Nuclear power plant instrument control synthetic training apparatus | |
| CN103018275B (en) | Required delivery density performance testing device | |
| CN104501859A (en) | Mobile integrated gas cooker comprehensive performance experiment tester and test method | |
| CN107643140A (en) | A kind of fire monitor injection counter-force test experiments platform and its application process | |
| CN107130097B (en) | The spherical tank heat treatment system that multi-combustor accurately controls | |
| CN203274863U (en) | High-pressure natural gas flowmeter calibrating device | |
| CN206946801U (en) | Automatic sprinkler system for fire-fighting teaching | |
| CN206496196U (en) | A kind of gas gathering station gas gathering system of full sledge dressization | |
| KR20100049866A (en) | Calibration burner system for real scale fire test | |
| CN104266924A (en) | Fire resistance test device for vertical building partition component in water-spraying protection | |
| CN202177393U (en) | Oil spray fire test apparatus | |
| CN104677659B (en) | Big cross section immersed tube tunnel fire disaster simulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20210307 |