CN206700540U - A kind of fixed compressed-air foam module - Google Patents
A kind of fixed compressed-air foam module Download PDFInfo
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- CN206700540U CN206700540U CN201720345963.4U CN201720345963U CN206700540U CN 206700540 U CN206700540 U CN 206700540U CN 201720345963 U CN201720345963 U CN 201720345963U CN 206700540 U CN206700540 U CN 206700540U
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Abstract
The utility model the utility model is related to fire-fighting system, more particularly to a kind of fixed compressed-air foam module.Including switching control pilot, water measuring control valve, water ga(u)ge, check valve, air and liquid mixer, concentrated tank, foam pump, foam measuring control valve, foam flowmeter, gas flowmeter, gas dosing control valve, pressure sensor, control system.The module strong applicability, using the protection existing water system in place, by the separation with water system, air supply system, vibrations caused by avoiding the operation such as water pump, air compressor machine, improve mixed-precision；Small volume, required requirements of installation space is not high, using flexible, can be arranged at nearly burning things which may cause a fire disaster, reduce engineering construction amount, avoids air supply system and absorbs the problem of high-temperature flue gas causes caused compressed air foam extinguishing performance bad.
Description
Technical field
It the utility model is related to fire-fighting system, more particularly to a kind of fixed compressed-air foam module.
Background technology
Compressed air foam extinguishing technology is due to having the high advantage of AB classes mixing fire, fire extinguishing effectiveness of going out concurrently, in traffic tunnel
Etc. there is obvious application advantage in typical place fire protection.Existing fixed compressed air foam fire-extinguishing system is typically adopted
With system integration formula, become one by water system, for foam solution system and air supply system, exist in actual application
Problems with：
（1）Compressed-air foam mixing ratio very little（1%）, larger vibrations can be produced during water pump operation, for flowmeter etc.
Sensor produces large effect, has a strong impact on compressed-air foam mixing ratio precision.
（2）Take up space larger after the system integration, it is necessary to plan the single device space, in order to reduce compressed-air foam
The time conveyed in pipe network, the position of system distance protection zone must not be too far away, higher to field requirement, in traffic tunnel etc.
The place such as the place of constructional difficulties, the traffic tunnel particularly built up, railway tunnel rescue station, install compressed-air foam additional
Systematic comparison is difficult, and construction costs is higher.
（3）Air supply system easily absorbs the high-temperature flue gas in the scene of a fire so that caused compressed-air foam state is by serious
Influence, fire extinguishing effectiveness substantially reduces.
The content of the invention
The purpose of this utility model is to overcome above mentioned problem, there is provided a kind of using flexible, easy for installation, mixed-precision compared with
Fixed compressed-air foam module that is high, producing high quality compressed-air foam.
The utility model adopts the technical scheme that：A kind of fixed compressed-air foam module, it is characterised in that including
Switching control pilot I, water measuring control valve, water ga(u)ge, check valve I, air and liquid mixer, concentrated tank, foam pump, foam metering
Control valve, foam flowmeter, gas flowmeter, temperature sensor, gas dosing control valve, pressure sensor I, pressure sensor
IIth, pressure sensor III, pressure sensor IV, check valve II, check valve III, switching control pilot II, switching control pilot III, control
System；
The module has three pipelines, is main line, foam line and gas piping respectively；
Described main line front end is water inlet, and end is compressed-air foam outlet, is steeped in water inlet and compressed air
Foam outlet between main line on, be sequentially installed with switching control pilot I, pressure sensor I, water measuring control valve, water ga(u)ge,
Check valve I, air and liquid mixer and pressure sensor II；
The foam line front end is concentrated tank, and end is check valve II, between concentrated tank and check valve II
On foam line, foam pump, foam flowmeter, pressure sensor III, switching control pilot II are sequentially installed with, check valve II connects
On the main line of air and liquid mixer front end, described foam pump sets a backwater to bypass, and frothmeter is installed in backwater bypass
Control valve；
Described gas piping front end is air inlet, and end is connected to the air inlet of air and liquid mixer, gentle in air inlet
Between liquid mixer air inlet, gas flowmeter, temperature sensor, pressure sensor IV, gas dosing control are sequentially installed with
Valve, switching control pilot III and check valve III；
Described control system distinguishes connecting valve control valve I, switching control pilot II, switching control pilot III, water metering control
Valve processed, water ga(u)ge, foam pump, foam measuring control valve, foam flowmeter, gas flowmeter, temperature sensor, gas dosing
Control valve, pressure sensor I, pressure sensor II, pressure sensor III, pressure sensor IV.
The utility model is compared with prior art, possessed to have the beneficial effect that：
1. fixed compressed-air foam module strong applicability provided by the utility model, it can both be individually for it and water supply is set
System, can also be used the protection existing water system in place, and compressed air foam extinguishing is installed additional in existing place so as to reduce
The financial cost of system.Control system accurately automatically adjusts equilibrium water, foam and gas pressure, by with water system, supply
The separation of system, vibrations caused by avoiding the operation such as water pump, air compressor machine, improves mixed-precision so that caused compression is empty
Gas foam performance is better.
2. fixed compressed-air foam module small volume provided by the utility model, required requirements of installation space is not
It height, using flexible, can be arranged at nearly burning things which may cause a fire disaster, while water system and air supply system are arranged on nearly water source and clearing
Place, the water inlet and air inlet of the module are connected to using pipeline, so as to reduce compressed-air foam transmission time, is improved
The response speed of system, it also avoid air supply system absorption high-temperature flue gas causes caused compressed air foam extinguishing performance bad
The problem of.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model.
In figure：1st, switching control pilot；2nd, water measuring control valve；3rd, water ga(u)ge；4th, check valve I；5th, air and liquid mixer；
6th, concentrated tank；7th, foam pump；8th, foam measuring control valve；9th, foam flowmeter；10th, gas flowmeter；11st, temperature passes
Sensor；12nd, gas dosing control valve；13rd, pressure sensor I；14th, pressure sensor II；15th, pressure sensor III；16th, press
Force snesor IV；17th, check valve II；18th, check valve III；19th, switching control pilot II；20th, switching control pilot III；21st, control system
System.
Embodiment
Referring to Fig. 1 embodiment, the utility model is described in further detail：
A kind of fixed compressed-air foam module, including switching control pilot I 1, water measuring control valve 2, water ga(u)ge 3,
Check valve I 4, air and liquid mixer 5, concentrated tank 6, foam pump 7, foam measuring control valve 8, foam flowmeter 9, gas flowmeter
10th, temperature sensor 11, gas dosing control valve 12, pressure sensor I 13, pressure sensor II 14, pressure sensor III 15,
Pressure sensor IV 16, check valve II 17, check valve III 18, switching control pilot II 19, switching control pilot III 20, control system
21。
The module has three pipelines, is main line, foam line and gas piping respectively.
Main line front end is water inlet, and end is compressed-air foam outlet, is exported in water inlet and compressed-air foam
Between main line on, be sequentially installed with switching control pilot I 1, pressure sensor I 13, water measuring control valve 2, water ga(u)ge 3,
Check valve I 4, air and liquid mixer 5 and pressure sensor II 14.
Foam line front end is concentrated tank 6, and end is check valve II 17, between concentrated tank 6 and check valve II 17
Foam line on, be sequentially installed with foam pump 7, foam flowmeter 9, pressure sensor III 15, switching control pilot II 19, unidirectionally
Valve II 17 is connected on the main line of the front end of air and liquid mixer 5, and described foam pump 7 sets a backwater to bypass, backwater bypass
Upper installation foam measuring control valve 8.
Gas piping front end is air inlet, and end is connected to the air inlet of air and liquid mixer 5, in air inlet and gas-liquid mixed
Between the air inlet of device 5, gas flowmeter 10, temperature sensor 11, pressure sensor IV 16, gas dosing control are sequentially installed with
Valve 12, switching control pilot III 20 and check valve III 18.
Control system 21 distinguishes connecting valve control valve I 1, switching control pilot II 19, switching control pilot III 20, water metering control
Valve 2 processed, water ga(u)ge 3, foam pump 7, foam measuring control valve 8, foam flowmeter 9, gas flowmeter 10, temperature sensor
11st, gas dosing control valve 12, pressure sensor I 13, pressure sensor II 14, pressure sensor III 15, pressure sensor IV
16。
Control system 21 can control the start and stop of foam pump 7, read in real time flowmeter and pressure sensor I 13 flow and
Pressure data, calculated according to the foams mix of setting ratio and gas liquid ratio, then control water measuring control valve 2, foam metering
The aperture of control valve 8, gas dosing control valve 12, adjustment water, foam and gas flow, the pressure of guarantee water, foam and gas
Balance, while closed-loop control is carried out, realize the adjust automatically of high-precision mixing ratio.
Check valve I 4, check valve II 17 and check valve III 18 are to prevent water from entering foam line and prevent foams mix
Liquid enters gas piping.
Temperature sensor 11 is to read gas temperature, and pressure compensation is carried out to the flow rate calculation of gas.
Preferably, water ga(u)ge 3 and foam flowmeter 9 select electromagnetic flowmeter, corrosion-resistant, and precision is high.
Preferably, foam pump 7 uses gear pump or plunger pump, using pulse width modulation（PMW）DC motor speed-regulating,
Foam output hydraulic coupling 0.3-1.6 Mpa.
Inlet charge pressure is 0.8-1.6 Mpa.
The course of work of the present utility model is briefly introduced referring to embodiment：Upon power-up of the system, control system 21 is first
The switching control pilot I 1 on main line is first opened, water measuring control valve 2 reaches setting aperture, and control system 21 reads main line
Water pressure and data on flows carry out closed loop regulation.The switching control pilot II 19 and foam pump 7 being then turned on foam line, according to
The foams mix ratio of setting（Class A foam mixing ratio is 1%）By calculating, adjust foam measuring control valve aperture and foam pump turns
Speed, control system 21 reads the foam hydraulic coupling of foam line and data on flows carries out closed loop adjustment.Finally open gas piping
On switching control pilot III 20, according to the gas liquid ratio of setting（Gas liquid ratio 6-40）By calculating, adjustment gas dosing control valve 12
Aperture, control system 21 reads the gas pressure of gas piping and data on flows carries out closed loop adjustment.So, water enters from water inlet
It is mixed to form foam mixing liquid after entering with foam solution first, then with air be mixed to form in air and liquid mixer 5 and compress sky
Gas foam.
Claims (1)
1. a kind of fixed compressed-air foam module, it is characterised in that including switching control pilot I（1）, water measuring control valve
（2）, water ga(u)ge（3）, check valve I（4）, air and liquid mixer（5）, concentrated tank（6）, foam pump（7）, foam measuring control valve
（8）, foam flowmeter（9）, gas flowmeter（10）, temperature sensor（11）, gas dosing control valve（12）, pressure sensor
Ⅰ（13）, pressure sensor II（14）, pressure sensor III（15）, pressure sensor IV（16）, check valve II（17）, check valve
Ⅲ（18）, switching control pilot II（19）, switching control pilot III（20）, control system（21）；
The module has three pipelines, is main line, foam line and gas piping respectively；
Described main line front end is water inlet, and end is compressed-air foam outlet, is gone out in water inlet and compressed-air foam
On main line between mouthful, switching control pilot I is sequentially installed with（1）, pressure sensor I（13）, water measuring control valve（2）, water
Flowmeter（3）, check valve I（4）, air and liquid mixer（5）With pressure sensor II（14）；
The foam line front end is concentrated tank（6）, end is check valve II（17）, in concentrated tank（6）With check valve II
（17）Between foam line on, be sequentially installed with foam pump（7）, foam flowmeter（9）, pressure sensor III（15）, switch
Control valve II（19）, check valve II（17）It is connected to air and liquid mixer（5）On the main line of front end, described foam pump（7）If
A backwater bypass is put, foam measuring control valve is installed in backwater bypass（8）；
Described gas piping front end is air inlet, and end is connected to air and liquid mixer（5）Air inlet, in air inlet and gas-liquid
Blender（5）Between air inlet, gas flowmeter is sequentially installed with（10）, temperature sensor（11）, pressure sensor IV（16）、
Gas dosing control valve（12）, switching control pilot III（20）With check valve III（18）；
Described control system（21）Connecting valve control valve I respectively（1）, switching control pilot II（19）, switching control pilot III
（20）, water measuring control valve（2）, water ga(u)ge（3）, foam pump（7）, foam measuring control valve（8）, foam flowmeter（9）, gas
Flowmeter body（10）, temperature sensor（11）, gas dosing control valve（12）, pressure sensor I（13）, pressure sensor II
（14）, pressure sensor III（15）, pressure sensor IV（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720345963.4U CN206700540U (en) | 2017-04-05 | 2017-04-05 | A kind of fixed compressed-air foam module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720345963.4U CN206700540U (en) | 2017-04-05 | 2017-04-05 | A kind of fixed compressed-air foam module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206700540U true CN206700540U (en) | 2017-12-05 |
Family
ID=60468549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720345963.4U Active CN206700540U (en) | 2017-04-05 | 2017-04-05 | A kind of fixed compressed-air foam module |
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| Country | Link |
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| CN (1) | CN206700540U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107982829A (en) * | 2017-12-22 | 2018-05-04 | 苏州市捷达消防车辆装备有限公司 | Used in fire-fighting positive-pressure type big flow foam proportioning system |
| CN109513140A (en) * | 2018-12-06 | 2019-03-26 | 陕西航天动力高科技股份有限公司 | A kind of control method of fixed B class A foam A extinguishing device and extinguishing device |
| CN110075450A (en) * | 2019-03-27 | 2019-08-02 | 西安科技大学 | Positive pressure froth fire extinguishing system and foam generating method based on two phase flow driving |
| WO2020077989A1 (en) * | 2018-10-19 | 2020-04-23 | 中国矿业大学 | Vehicle-mounted large-flow fire-fighting foam fluid mixing system |
| CN111714814A (en) * | 2019-03-22 | 2020-09-29 | 中国石油化工股份有限公司 | Self-pressurizing compressed gas foam generation system |
| CN112107822A (en) * | 2020-08-13 | 2020-12-22 | 常州博瑞电力自动化设备有限公司 | Compressed air foam fire extinguishing device |
-
2017
- 2017-04-05 CN CN201720345963.4U patent/CN206700540U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107982829A (en) * | 2017-12-22 | 2018-05-04 | 苏州市捷达消防车辆装备有限公司 | Used in fire-fighting positive-pressure type big flow foam proportioning system |
| WO2020077989A1 (en) * | 2018-10-19 | 2020-04-23 | 中国矿业大学 | Vehicle-mounted large-flow fire-fighting foam fluid mixing system |
| CN109513140A (en) * | 2018-12-06 | 2019-03-26 | 陕西航天动力高科技股份有限公司 | A kind of control method of fixed B class A foam A extinguishing device and extinguishing device |
| CN111714814A (en) * | 2019-03-22 | 2020-09-29 | 中国石油化工股份有限公司 | Self-pressurizing compressed gas foam generation system |
| CN110075450A (en) * | 2019-03-27 | 2019-08-02 | 西安科技大学 | Positive pressure froth fire extinguishing system and foam generating method based on two phase flow driving |
| CN112107822A (en) * | 2020-08-13 | 2020-12-22 | 常州博瑞电力自动化设备有限公司 | Compressed air foam fire extinguishing device |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300381 Nankai District Jin Wei South Road, No. 110, Tianjin Patentee after: Tianjin Institute of Fire Protection, Ministry of Emergency Management Address before: 300381 Nankai District Jin Wei South Road, No. 110, Tianjin Patentee before: Tianjin Fire Fighting Inst., Ministry of Public Security |
|
| CP01 | Change in the name or title of a patent holder |