CN107982829A - Used in fire-fighting positive-pressure type big flow foam proportioning system - Google Patents
Used in fire-fighting positive-pressure type big flow foam proportioning system Download PDFInfo
- Publication number
- CN107982829A CN107982829A CN201711403336.2A CN201711403336A CN107982829A CN 107982829 A CN107982829 A CN 107982829A CN 201711403336 A CN201711403336 A CN 201711403336A CN 107982829 A CN107982829 A CN 107982829A
- Authority
- CN
- China
- Prior art keywords
- foam
- circuit
- pump
- pipeline
- ratio
- 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
- 239000006260 foam Substances 0.000 title claims abstract description 160
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000002452 interceptive effect Effects 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- -1 pressure sensor Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
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
A kind of used in fire-fighting positive-pressure type big flow foam proportioning system, belongs to mobile fire control technology field.Including foam pump, foam tank, proportional controller, mixing tube, foam state monitoring protection circuit, foam flow sensing circuit, water flow detection circuit, feedback circuit, ratio valve regulation circuit and Interactive control unit, foam state monitoring protection circuit, foam flow sensing circuit, water flow detection circuit and feedback circuit are electrically connected with Interactive control unit respectively, the foam state monitoring protection circuit connection foam tank, the water flow detection circuit connection mixing tube, feedback circuit connects foam pump and ratio valve regulation circuit, ratio valve regulation circuit connects Interactive control unit by proportional controller.Advantage：Foam pump can be exported with accurate ratio needed for foam, the flow increase of foam pump, and in the range of the ratio of foam and water can maintain setting all the time；System operatio is simple, easy to maintain and reliable and stable.
Description
Technical field
The invention belongs to mobile fire control technology field, and in particular to a kind of used in fire-fighting positive-pressure type big flow foam ratio
Example hybrid system.
Background technology
Common fire fighting truck type foam mixing system is divided into two classes：Suction type type foam mixing system and positive-pressure type foams mix system
System.Both type foam mixing systems require that water mixes according to a certain percentage with foam, so as to reach optimal extinguishing effect.Its
In, suction type type foam mixing system is a kind of circular pump type system, relatively simple for structure, but to the pressure and water pump of pump intake
The pressure difference of intake-outlet has very high requirement, is normally only used for easy bicycle fire-fighting fire extinguishing.Positive-pressure type froth ratio mixed stocker
System overcomes the deficiency of suction type, it actively injects foam into water according to a certain percentage using foam pump, is filled through foam and water
Put out a fire after dividing mixing.Further, in order to improve injection efficiency, foam pump generally uses positive displacement pump, and goes out in foam
Mouth installation check valve, makes foam pressure be consistently greater than the pressure of water.In addition, foam pump is usually all driven using direct current generator
It is dynamic, but on fire fighting truck, due to being limited be subject to alternator for vehicle and battery capacity, the power of direct current generator can not set compared with
Greatly, froth ratio is limited when this can cause the big flow to supply water, so that foam use demand when can not meet big flow.
In view of above-mentioned prior art, it is necessary to the structure of existing fire fighting truck type foam mixing system is improved, for this reason,
The applicant has made beneficial design, and technical solution described below produces in this background.
The content of the invention
It is an object of the invention to provide a kind of used in fire-fighting positive-pressure type big flow foam proportioning system, operation letter
It is single, it is easy to maintain and reliable and stable, it can realize accurate froth ratio control.
The purpose of the present invention is so to reach, a kind of used in fire-fighting positive-pressure type big flow foam proportioning system,
Including foam pump, foam tank, proportional controller and the mixing tube in the exterior water route of connection, it is characterised in that：Further include foam-like
State monitoring protection circuit, foam flow sensing circuit, water flow detection circuit, feedback circuit, ratio valve regulation circuit and friendship
Mutual formula control unit, foam state monitoring protection circuit, foam flow sensing circuit, water flow detection circuit and anti-
Current feed circuit is electrically connected with the Interactive control unit respectively, the foam state monitoring protection circuit connection foam tank,
The water flow detection circuit connection mixing tube, the feedback circuit connection foam pump and ratio valve regulation circuit, institute
The ratio valve regulation circuit stated passes through the proportional controller connection Interactive control unit.
In the specific embodiment of the present invention, the ratio valve regulation circuit includes hydraulic pump, proportion adjustment
Valve and hydraulic motor, the feedback circuit include speed probe and pressure sensor, foam flow detection electricity
Road includes foam flowmeter, and the water flow detection circuit includes water ga(u)ge, foam state monitoring protection circuit
Including check valve, foam low liquid level switch, filter and relief valve, the side power takeoff of the hydraulic pump and fire fighting truck is driven
Connection, while be connected further through ratio adjusting valve with hydraulic motor by fluid pressure line, hydraulic motor is passed with the foam pump
Dynamic connection, ratio adjusting valve are electrically connected with the proportional controller, and the speed probe is disposed in the side of foam pump,
For measuring the rotating speed of foam pump, the foam pump connects foam tank by the first pipeline, is connected with the foam tank
Second pipeline, second pipeline connect foam pump by the 3rd pipeline, while further through the 4th pipeline connection mixing tube, institute
The pressure sensor stated is arranged on the 3rd pipeline, and the foam flowmeter and check valve are disposed on the 4th pipeline simultaneously
And check valve, between foam flowmeter and mixing tube, the water ga(u)ge is installed on the water inlet end of mixing tube, for surveying
The flow of water inlet is measured, foam low liquid level switch is arranged on the outside of foam tank and corresponds to the lower end of foam tank, the mistake
Filter is arranged on the first pipeline, and the relief valve is arranged on the second pipeline, the Interactive control unit respectively with
Speed probe, pressure sensor, foam flowmeter, water ga(u)ge, foam low liquid level switch and proportional controller are electrically connected.
The present invention compared with prior art, has an advantageous effect in that as a result of said structure：The hydraulic pressure horse
Foam pump is set to export required foam in precise proportions up to by adjusting the rotating speed of foam pump, the flow of foam pump increases, and
And in the range of the ratio of foam and water can maintain setting all the time；System operatio is simple, easy to maintain and reliable and stable.
Brief description of the drawings
Fig. 1 is the principle of the present invention block diagram.
Fig. 2 is the electrical connection schematic diagram of the present invention.
In figure：1. hydraulic pump；2. ratio adjusting valve；3. hydraulic motor；4. speed probe；5. pressure sensor；6. bubble
Foam flowmeter；7. check valve；8. water ga(u)ge；9. foam low liquid level switchs；10. filter；11. relief valve；12. the first pipe
Road；13. the second pipeline, 14. the 3rd pipelines；15. the 4th pipeline.
Embodiment
In order to enable the public to be fully understood by the technical spirit and beneficial effect of the present invention, applicant will be below with reference to attached drawing
The embodiment of the present invention is described in detail, but description of the applicant to embodiment is not the limitation to technical solution, is appointed
What is changed in the form rather than substance according to present inventive concept should all be considered as protection scope of the present invention.
Referring to Fig. 1, the present invention relates to a kind of used in fire-fighting positive-pressure type big flow foam proportioning system, including foam
Pump, foam tank, proportional controller and the mixing tube in the exterior water route of connection, it is characterised in that：Foam state monitoring is further included to protect
Protection circuit, foam flow sensing circuit, water flow detection circuit, feedback circuit, ratio valve regulation circuit and Interactive control
Unit, foam state monitoring protection circuit, foam flow sensing circuit, water flow detection circuit and feedback circuit point
It is not electrically connected with the Interactive control unit, the foam state monitoring protection circuit connection foam tank, water flow inspection
The slowdown monitoring circuit connection mixing tube, the feedback circuit connection foam pump and ratio valve regulation circuit, the ratio
Valve regulation circuit passes through the proportional controller connection Interactive control unit.
Referring to Fig. 2, specifically, the ratio valve regulation circuit includes hydraulic pump 1, ratio adjusting valve 2 and hydraulic pressure
Motor 3, the feedback circuit include speed probe 4 and pressure sensor 5, and the foam flow sensing circuit includes bubble
Foam flowmeter 6, the water flow detection circuit include water ga(u)ge 8, and foam state monitoring protection circuit includes single
To valve 7, foam low liquid level switch 9, filter 10 and relief valve 11.The side power takeoff of the hydraulic pump 1 and fire fighting truck passes
Dynamic connection, while be connected further through ratio adjusting valve 2 with hydraulic motor 3 by fluid pressure line.Hydraulic motor 3 and the foam
Pump is direct-connected by connecting shaft, and measure speed gears are provided with connecting shaft.There is hydraulic motor 3 minimum operating speed and highest work to turn
Speed, speed probe 4, which measures the rotating speed of foam pump by measure speed gears and feeds back tach signal, gives Interactive control unit, by handing over
Mutual formula control unit adjusts the aperture of ratio adjusting valve 2.The hydraulic pump 1 by ratio adjusting valve 2 come to hydraulic motor 3 into
Row speed governing, drives foam pump to operate by hydraulic motor 3.The hydraulic motor 3 makes foam by adjusting the rotating speed of foam pump
Pump foam needed for output in proportion, the flow of foam pump reach as high as 40 liters it is per second.Ratio adjusting valve 2 is controlled with the ratio
Device is electrically connected.The foam pump connects foam tank by the first pipeline 12, and the second pipeline 13 is connected with the foam tank,
Second pipeline 13 connects foam pump by the 3rd pipeline 14, while connects mixing tube further through the 4th pipeline 15.It is described
Pressure sensor 5 be arranged on the 3rd pipeline 14, the foam flowmeter 6 and check valve 7 are disposed on the 4th pipeline
On 15 and check valve 7 is between foam flowmeter 6 and mixing tube, and the water ga(u)ge 8 is installed on the water inlet of mixing tube
End, can avoid water and interference during foams mix to water flow detection.The speed probe 4, pressure sensor 5, bubble
Foam flowmeter 6, water ga(u)ge 8 and proportional controller are electrically connected with Interactive control unit respectively.In the present embodiment, rotating speed
Sensor 4 uses DW-AS-621-M8-001, and pressure sensor 5 uses 0-16bar/1-6V, and foam flowmeter 6 uses
F3.00.H.02, water ga(u)ge 8 use XE-MF10F-SOA, and other elements can use conventional products.
First, current actual water flow is detected by water ga(u)ge 8, while foam flowmeter 6 detects current foam
Testing result is simultaneously sent into Interactive control unit by flow, and the Interactive control unit is sentenced according to the froth ratio of setting
Whether the current foam flow value that breaks meets the proportion requirement of foam.If foam flow is excessive and exceeds error range, ratio
Regulating valve 2 reduces aperture, declines the rotating speed of foam pump, reduces foam supply；Conversely, if foam flow is too small and exceeds error
Scope, then the increase of ratio adjusting valve 2 aperture, raises foam revolution speed, increase foam supply.Thus, above-mentioned closed loop control is passed through
The ratio of system, foam and water can maintain in the range of setting all the time.After foam flowmeter 6 stalls for some reason,
Interactive control unit will be automatically switched into foam pump Rotating speed measring to replace foam flow detection.Foam revolution speed is gone back at the same time
As the foundation of foam pump speed limit, when the excessively low reason of foam tank liquid level causes foam pump inlet to lack liquid, foam pump stalls, together
When by foam low liquid level switch 9 to Interactive control unit 91 send out fault message.
In the present embodiment, foam low liquid level switch 9 uses MFP-11B, it is arranged on outside foam tank and right
It should be electrically connected in the lower end of foam tank, foam low liquid level switch 9 with Interactive control unit.The filter 10 is arranged on
On one pipeline 12, the relief valve 11 is arranged on the second pipeline 13.The pressure sensor 5 is used to measure foam in real time
The pressure of pipeline, when observed pressure is more than the rated pressure of foam pump, relief valve 13 is opened, and foam is returned through the second pipeline 13
It flow in foam tank.If foam pressure is still excessive within a certain period of time, further protected by reducing foam revolution speed.
The speed probe 4 measures the rotating speed of foam pump, when rotating speed exceedes the upper limit of revolution speed or the lower limit less than revolution speed,
By the aperture of proportional controller volitional check ratio adjusting valve 2, the rotating speed of foam pump is set to maintain rational operation interval.Work as institute
After 9 action of foam low liquid level switch stated, ratio adjusting valve 2 is closed, and stops foam pump operating, to prevent dry grinding damage occurs
Problem.
In the present embodiment, the Interactive control unit uses automobile-used Width funtion electric control product, and concrete model is
TERA, degree of protection IP65, strong antijamming capability.Interactive control unit has human-computer interaction interface, for real-time display stream
Amount, pressure, froth level, tachometer value, while each sensor can be demarcated by interface, prompt message and failure letter are sent out in real time
Breath.Froth ratio can also be set by man-machine interface, adjustable range is between 0.1%-10% and to adjust step-length any, realizes accurate
Froth ratio control.System operatio is simple, easy to maintain and reliable and stable, the mobile fire extinguishing available for petrochemical industry class fire.
Claims (2)
1. a kind of used in fire-fighting positive-pressure type big flow foam proportioning system, including foam pump, foam tank, proportional controller with
And the mixing tube in the exterior water route of connection, it is characterised in that：Further include foam state monitoring protection circuit, foam flow detection electricity
Road, water flow detection circuit, feedback circuit, ratio valve regulation circuit and Interactive control unit, foam state prison
Control protection circuit, foam flow sensing circuit, water flow detection circuit and feedback circuit respectively with the Interactive control
Unit is electrically connected, the foam state monitoring protection circuit connection foam tank, the water flow detection circuit connection mixing
Pipe, the feedback circuit connection foam pump and ratio valve regulation circuit, the ratio valve regulation circuit pass through ratio control
The device connection processed Interactive control unit.
2. used in fire-fighting positive-pressure type big flow foam proportioning system according to claim 1, it is characterised in that described
Ratio valve regulation circuit include hydraulic pump (1), ratio adjusting valve (2) and hydraulic motor (3), the feedback circuit include
Speed probe (4) and pressure sensor (5), the foam flow sensing circuit include foam flowmeter (6), the water
Flow sensing circuit includes water ga(u)ge (8), and foam state monitoring protection circuit includes check valve (7), the low liquid of foam
Bit switch (9), filter (10) and relief valve (11), the hydraulic pump (1) and the side power takeoff of fire fighting truck are sequentially connected,
It is connected at the same time further through ratio adjusting valve (2) with hydraulic motor (3) by fluid pressure line, hydraulic motor (3) and the foam
Pump drive connects, and ratio adjusting valve (2) is electrically connected with the proportional controller, and the speed probe (4) is disposed in bubble
The side of foam pump, for measuring the rotating speed of foam pump, the foam pump connects foam tank by the first pipeline (12), described
The second pipeline (13) is connected with foam tank, second pipeline (13) connects foam pump by the 3rd pipeline (14), at the same time
Mixing tube is connected further through the 4th pipeline (15), the pressure sensor (5) is arranged on the 3rd pipeline (14), the bubble
Foam flowmeter (6) and check valve (7) are disposed on the 4th pipeline (15) and check valve (7) is between foam flowmeter (6)
Between mixing tube, the water ga(u)ge (8) is installed on the water inlet end of mixing tube, described for measuring the flow of water inlet
Foam low liquid level switch (9) is arranged on the outside of foam tank and the lower end of corresponding foam tank, and the filter (10) is arranged on the
On one pipeline (12), the relief valve (11) is arranged on the second pipeline (13), the Interactive control unit respectively with
Speed probe (4), pressure sensor (5), foam flowmeter (6), water ga(u)ge (8), foam low liquid level switch (9) and ratio
Csr controller is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711403336.2A CN107982829A (en) | 2017-12-22 | 2017-12-22 | Used in fire-fighting positive-pressure type big flow foam proportioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711403336.2A CN107982829A (en) | 2017-12-22 | 2017-12-22 | Used in fire-fighting positive-pressure type big flow foam proportioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107982829A true CN107982829A (en) | 2018-05-04 |
Family
ID=62039557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711403336.2A Pending CN107982829A (en) | 2017-12-22 | 2017-12-22 | Used in fire-fighting positive-pressure type big flow foam proportioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107982829A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108525170A (en) * | 2018-06-07 | 2018-09-14 | 明光浩淼安防科技股份公司 | A kind of full-automatic pro rate liquid transporting apparatus |
| CN113769300A (en) * | 2021-03-19 | 2021-12-10 | 湖南新永利交通科工贸有限公司 | Vehicle-mounted high-flow foam proportional mixing system |
| CN114949713A (en) * | 2021-02-26 | 2022-08-30 | 三一汽车制造有限公司 | Fire fighting truck control system, control method and fire fighting truck |
| CN115779310A (en) * | 2022-12-15 | 2023-03-14 | 徐工消防安全装备有限公司 | Large-traffic compressed air foam system and fire engine |
| CN115920292A (en) * | 2022-12-05 | 2023-04-07 | 徐工消防安全装备有限公司 | Foam proportion calibration test system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050222287A1 (en) * | 2004-03-31 | 2005-10-06 | Roberts Geary E | Electronically controlled direct injection foam delivery system and method of regulating flow of foam into water stream based on conductivity measure |
| CN102526915A (en) * | 2011-12-14 | 2012-07-04 | 陕西航天动力高科技股份有限公司 | Low flow positive pressure automatic foam proportioner |
| CN103566506A (en) * | 2013-11-19 | 2014-02-12 | 北京中卓时代消防装备科技有限公司 | Foam proportion mixing system and device of airport fire truck |
| CN103585728A (en) * | 2013-11-28 | 2014-02-19 | 四川森田消防装备制造有限公司 | Positive pressure type foam proportion mixing system |
| CN203556077U (en) * | 2013-11-28 | 2014-04-23 | 四川森田消防装备制造有限公司 | Positive-pressure type foam proportioning system |
| CN104492008A (en) * | 2015-01-05 | 2015-04-08 | 北京中卓时代消防装备科技有限公司 | Injection type positive-negative-pressure foam proportionally mixing system of fire-extinguishing foam tanker |
| CN107029367A (en) * | 2017-04-17 | 2017-08-11 | 上海博灿信号设备有限公司 | The intelligent foam proportioning system of Integral positive/negative pressure |
| CN107158610A (en) * | 2017-04-21 | 2017-09-15 | 东华大学 | Compressed-air foam ratio hybrid control system |
| CN206700540U (en) * | 2017-04-05 | 2017-12-05 | 公安部天津消防研究所 | A kind of fixed compressed-air foam module |
| CN207856125U (en) * | 2017-12-22 | 2018-09-14 | 捷达消防科技（苏州）股份有限公司 | Used in fire-fighting positive-pressure type big flow foam proportioning system |
-
2017
- 2017-12-22 CN CN201711403336.2A patent/CN107982829A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050222287A1 (en) * | 2004-03-31 | 2005-10-06 | Roberts Geary E | Electronically controlled direct injection foam delivery system and method of regulating flow of foam into water stream based on conductivity measure |
| CN102526915A (en) * | 2011-12-14 | 2012-07-04 | 陕西航天动力高科技股份有限公司 | Low flow positive pressure automatic foam proportioner |
| CN103566506A (en) * | 2013-11-19 | 2014-02-12 | 北京中卓时代消防装备科技有限公司 | Foam proportion mixing system and device of airport fire truck |
| CN103585728A (en) * | 2013-11-28 | 2014-02-19 | 四川森田消防装备制造有限公司 | Positive pressure type foam proportion mixing system |
| CN203556077U (en) * | 2013-11-28 | 2014-04-23 | 四川森田消防装备制造有限公司 | Positive-pressure type foam proportioning system |
| CN104492008A (en) * | 2015-01-05 | 2015-04-08 | 北京中卓时代消防装备科技有限公司 | Injection type positive-negative-pressure foam proportionally mixing system of fire-extinguishing foam tanker |
| CN206700540U (en) * | 2017-04-05 | 2017-12-05 | 公安部天津消防研究所 | A kind of fixed compressed-air foam module |
| CN107029367A (en) * | 2017-04-17 | 2017-08-11 | 上海博灿信号设备有限公司 | The intelligent foam proportioning system of Integral positive/negative pressure |
| CN107158610A (en) * | 2017-04-21 | 2017-09-15 | 东华大学 | Compressed-air foam ratio hybrid control system |
| CN207856125U (en) * | 2017-12-22 | 2018-09-14 | 捷达消防科技（苏州）股份有限公司 | Used in fire-fighting positive-pressure type big flow foam proportioning system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108525170A (en) * | 2018-06-07 | 2018-09-14 | 明光浩淼安防科技股份公司 | A kind of full-automatic pro rate liquid transporting apparatus |
| CN108525170B (en) * | 2018-06-07 | 2024-02-02 | 明光浩淼安防科技股份公司 | Full-automatic proportional distribution liquid conveying device |
| CN114949713A (en) * | 2021-02-26 | 2022-08-30 | 三一汽车制造有限公司 | Fire fighting truck control system, control method and fire fighting truck |
| CN114949713B (en) * | 2021-02-26 | 2023-06-23 | 三一汽车制造有限公司 | Fire truck control system, control method and fire truck |
| CN113769300A (en) * | 2021-03-19 | 2021-12-10 | 湖南新永利交通科工贸有限公司 | Vehicle-mounted high-flow foam proportional mixing system |
| CN115920292A (en) * | 2022-12-05 | 2023-04-07 | 徐工消防安全装备有限公司 | Foam proportion calibration test system |
| CN115920292B (en) * | 2022-12-05 | 2024-02-06 | 徐工消防安全装备有限公司 | Foam proportion calibration test system |
| CN115779310A (en) * | 2022-12-15 | 2023-03-14 | 徐工消防安全装备有限公司 | Large-traffic compressed air foam system and fire engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107982829A (en) | Used in fire-fighting positive-pressure type big flow foam proportioning system | |
| CN104549884B (en) | Two-component glue mixing and injecting system | |
| CN104492008B (en) | The pouring-in positive/negative-pressure foam proportioning system of a kind of foam truck | |
| CN107158610A (en) | Compressed-air foam ratio hybrid control system | |
| CN102493949B (en) | Fire vehicle water pump control system | |
| CN203452119U (en) | Wide-flow-range water supply system for flow device | |
| CN207384649U (en) | Number is determined than big flow mixing arrangement and its test system | |
| CN207856125U (en) | Used in fire-fighting positive-pressure type big flow foam proportioning system | |
| CN101433812B (en) | Wet flattening turbulent current real time liquor-mixing system | |
| CN207366216U (en) | Fire fighting truck conservancy property continuous operation test platform | |
| CN104437229B (en) | Electricity expelling water powder continuous mixing device | |
| CN204832983U (en) | Intelligence grout pressure control system | |
| CN106744621A (en) | A kind of constant pressure oil supply device based on converter technique | |
| CN205700429U (en) | Emulsion ratio controls device and emulsion device for formulating | |
| CN201079648Y (en) | Electric gear type foam pump package | |
| CN204879451U (en) | Modularization gas pressure regulating box | |
| CN108999730B (en) | Safe intelligent fuel control system | |
| CN204353075U (en) | Two component mixes glue, injection system | |
| CN103775436A (en) | Modularly-parallel, multi-machine and energy-saving reliability testing device for hydraulic pumps and hydraulic motors | |
| CN215833155U (en) | Constant water pressure test system | |
| CN211549663U (en) | Multi-functional pipeline device of row mixes | |
| CN201271443Y (en) | Measuring injection type proportional mixer | |
| CN109667798B (en) | Intelligent injection control device for guaranteeing aviation kerosene quality | |
| CN204389649U (en) | Generator/genset performance simulation test macro | |
| CN203741929U (en) | Water supply pressure equalizing device of residential building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215562 Industrial Park, Shuang Bang village, Xinzhuang Town, Changshou City, Suzhou, Jiangsu Applicant after: SUZHOU CITY JIEDA FIRE-PROTECTION VEHICLE & EQUIPMENT CO.,LTD. Address before: 215562 Industrial Park, Shuang Bang village, Xinzhuang Town, Changshou City, Suzhou, Jiangsu Applicant before: JIEDA FIRE PROTECTION VEHICLE EQUIPMENT CO.,LTD. SUZHOU CITY |
|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |