CN203276050U - CAN bus-based fire fighting truck compressed air and foam mixing system - Google Patents
CAN bus-based fire fighting truck compressed air and foam mixing system Download PDFInfo
- Publication number
- CN203276050U CN203276050U CN2013202002110U CN201320200211U CN203276050U CN 203276050 U CN203276050 U CN 203276050U CN 2013202002110 U CN2013202002110 U CN 2013202002110U CN 201320200211 U CN201320200211 U CN 201320200211U CN 203276050 U CN203276050 U CN 203276050U
- Authority
- CN
- China
- Prior art keywords
- foam
- signal
- bus
- main control
- control circuit
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to the fire fighting truck foam mixing control technology field and particularly relates to a CAN bus-based fire fighting truck compressed air and foam mixing system which is characterized in that a water flow quantity sensor and a foam flow quantity sensor are used to respectively detect a water flow quantity signal and a foam flow quantity signal, a main control circuit outputs a ratio control signal to a foam flow quantity adjusting motor after obtaining the water flow quantity signal and the foam flow quantity signal, and foam and water mixing ratio adjustment is realized by adjusting a foam flow quantity; on the other hand, an air compressor outlet opening pressure sensor is used for detecting an air compressor outlet opening pressure signal in a real-time manner and is used for sending the air compressor outlet opening pressure signal to the main control circuit, the main control circuit outputs a pressure control signal to an air compressor according to the water and foam mixing ratio condition and the air compressor outlet opening pressure signal, and therefore the output air pressure of the air compressor can be adjusted. Through adjustment of a foam and water mixing ratio and the output air pressure of the air compressor, the system can output fire extinguishing foam capable of attaining required effects.
Description
Technical field
The utility model relates to fire truck foams mix control technology field, particularly a kind of fire truck compressed-air foam commingled system based on the CAN bus.
Background technology
Fire truck compressed-air foam commingled system is that fire truck passes through foam ratio generator, automatically and pressurized air concentrated water, efficient foam is by required ratio mixing, the stirring of compressed air and air blast effect, produce a large amount of fine and smooth fire foams, compressed-air foam sprays to burning things which may cause a fire disaster through high-pressure service fire pump.Therefore its have that fire-fighting efficiency is high, safer, water and the foam consumption few, the advantage such as use cost is low, environment protecting is good.
Yet existing compressed-air foam commingled system operation circuit is complicated, so performance is not good, and control accuracy is low, and failure rate is high, malfunction, function imperfection.Seriously restricted the fire-fighting operation ability of fire truck.Therefore, for solving weak point of the prior art, provide a kind of operation circuit simple, functional, precision is high, failure rate is low, and it is particularly necessary that the fire truck compressed-air foam commingled system of perfect in shape and function and easy operating seems.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and provides a kind of operation circuit simple, and functional, precision is high, failure rate is low, the fire truck compressed-air foam commingled system based on the CAN bus of perfect in shape and function and easy operating.
The purpose of this utility model is achieved through the following technical solutions:
a kind of fire truck compressed-air foam commingled system based on the CAN bus is provided, comprise main control circuit, described main control circuit is connected with the node expansion module through the CAN bus, described node expansion module is connected with foam ratio regulating system and air pressure control system: described foam ratio regulating system comprises water flow sensor, foam stream quantity sensor and foam flow are adjusted motor, described water flow sensor and foam stream quantity sensor detect respectively water flow signal and foam flow signal, described main control circuit export ratio after CAN bus and node expansion module obtain described water flow signal and foam flow signal controls signal to the foam flow and adjusts motor, described air pressure control system comprises air compressor machine outlet pressure sensor and air compressor, described air compressor machine outlet pressure sensor detects in real time air compressor machine top hole pressure signal and sends it to main control circuit, and the main control circuit output pressure controls signal to air compressor to adjust the output pressure of air compressor simultaneously.
Wherein, described foam ratio regulating system also comprises proportioning controller, deviate controller and the PID controller that is arranged in main control circuit, described proportioning controller through the CAN bus obtain water flow signal that default foams mix scaling signal and water flow sensor detect with foam output demand signal to the deviate controller, described deviate controller through the CAN bus obtain the foam flow signal with foam output deviate signal to the PID controller, described PID controller is adjusted motor according to foam deviate signal output analog control signal to foam flow.
Wherein, also comprise signal condition and amplifying circuit in described main control circuit, the analog control signal of described PID controller output is sent to foam flow adjustment motor through signal condition and amplifying circuit.
Wherein, described node expansion module also is connected with controls panel module, and the described panel module of controlling is connected to main control circuit through the CAN bus.
Wherein, the described panel module of controlling comprises and main controls panel module and from controlling panel module.
Wherein, described node expansion module also is connected with foam tank liquid outlet electromagnetic valve and foam tank fluid state detection sensor, described foam tank fluid state detection sensor detects in real time foam tank fluid status information and foam tank fluid status information is sent to main control circuit through the CAN bus, and main control circuit is controlled the foam tank liquid outlet electromagnetic valve according to foam tank fluid status information.
Wherein, described node expansion module also is connected with water pot liquid level sensor and foam tank liquid level sensor, described water pot liquid level sensor detects the liquid level information of the water pot of fire truck in real time, and described foam tank liquid level sensor detects the liquid level information of the foam tank of fire truck in real time.
Wherein, described node expansion module also is connected with outlet solenoid valve, scouring electromagnetic valve and humidity regulation valve.
The beneficial effects of the utility model: provide in a kind of fire truck compressed-air foam commingled system, in its foam ratio regulating system, water flow sensor and foam stream quantity sensor detect respectively water flow signal and foam flow signal, main control circuit export ratio after CAN bus and node expansion module obtain described water flow signal and foam flow signal controls signal to the foam flow and adjusts motor, realizes regulating the blending ratio of foam and water by regulating the foam flow.On the other hand, in air pressure control system, the air compressor machine outlet pressure sensor detects in real time air compressor machine top hole pressure signal and sends it to main control circuit, and main control circuit controls signal to air compressor to adjust the output pressure of air compressor according to situation and the air compressor machine top hole pressure signal output pressure of water and foams mix ratio.Regulate foam and the blending ratio of water and the output pressure of air compressor by collaborative, thereby make the exportable fire foam that can reach required effect of system.Compared with prior art, the utility model operation circuit is simple, and is functional, and precision is high, failure rate is low, perfect in shape and function and easy operating.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not consist of any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of the embodiment of a kind of fire truck compressed-air foam commingled system based on the CAN bus of the utility model.
Fig. 2 is the structural representation of foam ratio regulating system of the embodiment of a kind of fire truck compressed-air foam commingled system based on the CAN bus of the utility model.
Embodiment
With the following Examples the utility model is further described.
the embodiment of a kind of fire truck compressed-air foam commingled system based on the CAN bus of the utility model, as shown in Figure 1, comprise: main control circuit 1, described main control circuit 1 is connected with node expansion module 7 through the CAN bus, described node expansion module 7 is connected with foam ratio regulating system and air pressure control system: described foam ratio regulating system comprises water flow sensor 2, foam stream quantity sensor 3 and foam flow are adjusted motor 4, described water flow sensor 2 and foam stream quantity sensor 3 detect respectively water flow signal and foam flow signal, described main control circuit 1 export ratio after CAN bus and node expansion module 7 obtain described water flow signal and foam flow signal controls signal to the foam flow and adjusts motor 4, described air pressure control system comprises air compressor machine outlet pressure sensor 5 and air compressor 6, described air compressor machine outlet pressure sensor 5 detects in real time air compressor machine top hole pressure signal and sends it to main control circuit 1, and main control circuit 1 output pressure controls signal to air compressor 6 to adjust the output pressure of air compressor 6 simultaneously.
In foam ratio regulating system, water flow sensor 2 and foam stream quantity sensor 3 detect respectively water flow signal and foam flow signal, main control circuit 1 export ratio after CAN bus and node expansion module 7 obtain described water flow signal and foam flow signal controls signal to the foam flow and adjusts motor 4, realizes regulating the blending ratio of foam and water by regulating the foam flow.On the other hand, in air pressure control system, air compressor machine outlet pressure sensor 5 detects in real time air compressor machine top hole pressure signal and sends it to main control circuit 1, and main control circuit 1 controls signal to air compressor 6 to adjust the output pressure of air compressor 6 according to situation and the air compressor machine top hole pressure signal output pressure of water and foams mix ratio.Regulate foam and the blending ratio of water and the output pressure of air compressor 6 by collaborative, thereby make the exportable fire foam that can reach required effect of system.Compared with prior art, the utility model operation circuit is simple, and is functional, and precision is high, failure rate is low, perfect in shape and function and easy operating.
as shown in Figure 2, described foam ratio regulating system also comprises the proportioning controller 101 that is arranged in main control circuit 1, deviate controller 102 and PID controller 103, described proportioning controller 101 through the CAN bus obtain default foams mix scaling signal and water flow signal with foam output demand signal to deviate controller 102, described deviate controller 102 through the CAN bus obtain the foam flow signal with foam output deviate signal to PID controller 103, described PID controller 103 is adjusted motor 4 according to foam deviate signal output analog control signal to foam flow, thereby realize the adjusting to the foam ratio.Adopt the mode of PID closed-loop control, can effectively improve control accuracy, automaticity is high simultaneously.
Also comprise signal condition and amplifying circuit 104 in main control circuit, the analog control signal of PID controller 103 outputs is sent to foam flow adjustment motor 4 through signal condition and amplifying circuit 104.Thereby effectively improved the quality of analog control signal, improved system reliability.
Described node expansion module 7 also is connected with controls panel module, and the described panel module of controlling is connected to main control circuit 1 through the CAN bus, and the described panel module of controlling comprises and main controls panel module 8 and from controlling panel module 9.What the fireman controlled panel module 8 by the master who is arranged on pilothouse and was arranged at OPS carries out setting operation and information inquiry from controlling 9 pairs of type foam mixing systems of panel module, for example set the foams mix ratio, inquire about each solenoid valve status information, be convenient to the fireman accurate, operate fast.
Described node expansion module 7 also is connected with water pot liquid level sensor 12 and foam tank liquid level sensor 13, described water pot liquid level sensor 12 detects the liquid level information of the water pot of fire truck in real time, and described foam tank liquid level sensor 13 detects the liquid level information of the foam tank of fire truck in real time.Be convenient to the fireman and in time understand the liquid level condition of fire truck to make decision-making accurately.
Described node expansion module 7 also is connected with foam tank liquid outlet electromagnetic valve 11 and foam tank fluid state detection sensor 10, described foam tank fluid state detection sensor 10 detects in real time foam tank fluid status information and foam tank fluid status information is sent to main control circuit 1 through the CAN bus, and main control circuit 1 is controlled foam tank liquid outlet electromagnetic valve 11 according to foam tank fluid status information.Described node expansion module 7 also is connected with outlet solenoid valve 14, scouring electromagnetic valve 15 and humidity regulation valve 16.Carry out Real Time Monitoring and Based Intelligent Control by the state to each solenoid valve, effectively improved the intelligent degree of system and reduced failure rate is low, effectively improved the reliability of foams mix.Certainly, according to actual needs, node expansion module 7 can also be expanded and connect more multi-part, so that its more perfect function.
Should be noted that at last; above embodiment is only in order to illustrate the technical solution of the utility model; but not to the restriction of the utility model protection domain; although with reference to preferred embodiment, the utility model has been done to explain; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (8)
1. fire truck compressed-air foam commingled system based on the CAN bus, it is characterized in that: comprise main control circuit, described main control circuit is connected with the node expansion module through the CAN bus, described node expansion module is connected with foam ratio regulating system and air pressure control system: described foam ratio regulating system comprises water flow sensor, foam stream quantity sensor and foam flow are adjusted motor, described water flow sensor and foam stream quantity sensor detect respectively water flow signal and foam flow signal, described main control circuit export ratio after CAN bus and node expansion module obtain described water flow signal and foam flow signal controls signal to the foam flow and adjusts motor, described air pressure control system comprises air compressor machine outlet pressure sensor and air compressor, described air compressor machine outlet pressure sensor detects in real time air compressor machine top hole pressure signal and sends it to main control circuit, and the main control circuit output pressure controls signal to air compressor to adjust the output pressure of air compressor simultaneously.
2. a kind of fire truck compressed-air foam commingled system based on the CAN bus as claimed in claim 1, it is characterized in that: described foam ratio regulating system also comprises the proportioning controller that is arranged in main control circuit, deviate controller and PID controller, described proportioning controller through the CAN bus obtain water flow signal that default foams mix scaling signal and water flow sensor detect with foam output demand signal to the deviate controller, described deviate controller through the CAN bus obtain the foam flow signal with foam output deviate signal to the PID controller, described PID controller is adjusted motor according to foam deviate signal output analog control signal to foam flow.
3. a kind of fire truck compressed-air foam commingled system based on the CAN bus as claimed in claim 2, it is characterized in that: also comprise signal condition and amplifying circuit in described main control circuit, the analog control signal of described PID controller output is sent to foam flow adjustment motor through signal condition and amplifying circuit.
4. a kind of fire truck compressed-air foam commingled system based on the CAN bus as claimed in claim 1, it is characterized in that: described node expansion module also is connected with controls panel module, and the described panel module of controlling is connected to main control circuit through the CAN bus.
5. a kind of fire truck compressed-air foam commingled system based on the CAN bus as claimed in claim 4 is characterized in that: the described panel module of controlling comprises and mainly controls panel module and from controlling panel module.
6. a kind of fire truck compressed-air foam commingled system based on the CAN bus as claimed in claim 1, it is characterized in that: described node expansion module also is connected with foam tank liquid outlet electromagnetic valve and foam tank fluid state detection sensor, described foam tank fluid state detection sensor detects in real time foam tank fluid status information and foam tank fluid status information is sent to main control circuit through the CAN bus, and main control circuit is controlled the foam tank liquid outlet electromagnetic valve according to foam tank fluid status information.
7. a kind of fire truck compressed-air foam commingled system based on the CAN bus as claimed in claim 1, it is characterized in that: described node expansion module also is connected with water pot liquid level sensor and foam tank liquid level sensor, described water pot liquid level sensor detects the liquid level information of the water pot of fire truck in real time, and described foam tank liquid level sensor detects the liquid level information of the foam tank of fire truck in real time.
8. a kind of fire truck compressed-air foam commingled system based on the CAN bus as claimed in claim 1 is characterized in that: described node expansion module also is connected with outlet solenoid valve, scouring electromagnetic valve and humidity regulation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202002110U CN203276050U (en) | 2013-04-19 | 2013-04-19 | CAN bus-based fire fighting truck compressed air and foam mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202002110U CN203276050U (en) | 2013-04-19 | 2013-04-19 | CAN bus-based fire fighting truck compressed air and foam mixing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203276050U true CN203276050U (en) | 2013-11-06 |
Family
ID=49506421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202002110U Expired - Lifetime CN203276050U (en) | 2013-04-19 | 2013-04-19 | CAN bus-based fire fighting truck compressed air and foam mixing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203276050U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112057784A (en) * | 2020-08-25 | 2020-12-11 | 长沙中联消防机械有限公司 | Foam ratio control method and system for compressed air foam system and fire fighting truck |
| CN113198130A (en) * | 2021-05-25 | 2021-08-03 | 西安理工大学 | Fire extinguishing system with injection type compressed air foam metering function and using method thereof |
| CN113359416A (en) * | 2021-06-11 | 2021-09-07 | 西安理工大学 | Multi-input single-output compressed air foam system based on PLC and control method |
-
2013
- 2013-04-19 CN CN2013202002110U patent/CN203276050U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112057784A (en) * | 2020-08-25 | 2020-12-11 | 长沙中联消防机械有限公司 | Foam ratio control method and system for compressed air foam system and fire fighting truck |
| CN113198130A (en) * | 2021-05-25 | 2021-08-03 | 西安理工大学 | Fire extinguishing system with injection type compressed air foam metering function and using method thereof |
| CN113359416A (en) * | 2021-06-11 | 2021-09-07 | 西安理工大学 | Multi-input single-output compressed air foam system based on PLC and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007061711A3 (en) | Fire suppression system | |
| CN203276050U (en) | CAN bus-based fire fighting truck compressed air and foam mixing system | |
| CN203154668U (en) | Compressed gas foam proportioning device | |
| CN203102030U (en) | Foam mixing control system based on CAN (controller area network) bus for fire-fighting truck | |
| CN203878659U (en) | Constant pressure water supply system applied to spraying system | |
| CN102600759A (en) | Nitrogen/chlorine (argon/chlorine) mixing and proportioning system and operation method thereof | |
| CN201681319U (en) | Intelligent control unit of compressed air foam system | |
| CN104100838A (en) | Pressure regulation device and method for LNG (liquefied natural gas) plant incoming natural gas | |
| WO2014083312A3 (en) | Apparatus and method for controlling the flow of a fluid | |
| JPWO2022079787A5 (en) | ||
| CN203630649U (en) | Gas flow or pressure adjustment device | |
| JP2014023976A (en) | Two-fluid atomizer, and pressurized liquid feeding device | |
| CN104524717A (en) | Foam fire-extinguishing device with internal screw type air compressor | |
| CN202961579U (en) | Automatic foam proportioner | |
| CN203797870U (en) | Air-water mixture spray system | |
| CN203500603U (en) | Adjustable pressure reducing and stabilizing valve | |
| CN201135876Y (en) | Balance type proportional mixer | |
| CN205530482U (en) | Variable frequency speed governing(VFSG) constant voltage water supply system | |
| CN102628731B (en) | Steady air suction/blowing control device of structural wall surface ambient flow field | |
| CN203272096U (en) | Fire fighting truck water pump pressure stabilizing control system based on CAN buses | |
| CN109654004A (en) | CAN bus based fire engine water-pump voltage-stabilization control system | |
| CN104671640B (en) | Mechanism of I. S. Machine fuse air-path control system | |
| CN203976835U (en) | A kind of device of many mutual wind turnings of blower unit of many blast furnaces | |
| CN113414021A (en) | Graphene spraying equipment | |
| CN203525561U (en) | Selective non-catalytic reduction (SNCR) denitration distribution module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |