CN201529337U - Fire-fighting foam mixing ratio control system and fire engine with same - Google Patents
Fire-fighting foam mixing ratio control system and fire engine with same Download PDFInfo
- Publication number
- CN201529337U CN201529337U CN200920267461XU CN200920267461U CN201529337U CN 201529337 U CN201529337 U CN 201529337U CN 200920267461X U CN200920267461X U CN 200920267461XU CN 200920267461 U CN200920267461 U CN 200920267461U CN 201529337 U CN201529337 U CN 201529337U
- Authority
- CN
- China
- Prior art keywords
- fire
- foam solution
- valve
- mixing ratio
- solution flow
- 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
- 239000006260 foam Substances 0.000 title claims abstract description 167
- 239000007788 liquid Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 230000000875 corresponding Effects 0.000 claims description 12
- 241000876443 Varanus salvator Species 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 230000000052 comparative effect Effects 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 abstract 3
- 239000000243 solution Substances 0.000 description 93
- 238000010586 diagram Methods 0.000 description 10
- 101700072563 POT1 Proteins 0.000 description 6
- 239000007921 spray Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003028 elevating Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011493 spray foam Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The utility model discloses a fire-fighting foam mixing ratio control system. A controller of the system outputs a drive signal for controlling the opening of a control valve which controls the foam liquid flow rate according to related parameters; the controller comprises a receiving unit, a predicted value setting unit and a comparing and inquiring unit; the receiving unit is used for receiving the mixing ratio required by the present working condition and the real-time acquired mixed solution flow value; the predicted value setting unit is used for pre-setting the mixing ratio and a first relation table about the mixed solution flow rate and the foam liquid flow rate control valve opening under the required mixing ratio; and the comparing and inquiring unit is used for judging whether the mixing ratio required by the present working condition is smaller than the pre-set mixing ratio, if the mixing ratio required by the present working condition is smaller than the pre-set mixing ratio, the comparing and inquiring unit outputs the drive signal of the foam flow rate control valve opening, which corresponds to the real-time mixed solution flow value, to the foam flow rate control valve. On the basis, the utility model further provides the fire-fighting foam mixing ratio control system and a fire engine with the same.
Description
Technical field
The utility model relates to fire-fighting equipment, the fire fighting truck that is specifically related to fire-fighting foams mixed proportion control system and has this system.
Background technology
Along with fire protection industry progressively develops, the foam solution kind that adapts to category-A and category-B fire is more and more.During use, foam solution and water mix according to certain ratio, and suck air form foam when foam monitor or foam gun are sprayed, form cover layer after being ejected into the comburant surface, reach the purpose of fire extinguishing.
At present, the fire fighting truck foam proportioning system is divided into two big classes, and a class is the positive-pressure type foam proportioning system, and a class is the suction type foam proportioning system.Because positive-pressure type foam proportioning system price is higher, so use less.The fire fighting truck overwhelming majority of domestic production is now used the suction type foam proportioning system, and employed foam solution mainly is divided into two classes: class A foam liquid and category-B foam solution; Wherein, the mixed proportion that class A foam liquid is commonly used is 3 ‰～5 ‰, and category-B foam solution mixed proportion commonly used to be the mixed proportion of 3%～6%, two class A foam A liquid have bigger difference.That is, based on the foam mixing liquid of same traffic, the flow difference that dissimilar foam solutions is required.
In the fire-fighting foams proporting system of existing fire-fighting vehicle configuration, when the foam solution flow was lower than setting flow no signal feedback, then system quit work; That is to say, the foam solution type that the foam ratio system of various fire-fighting vehicles is only applicable to set, when using the different foam solution type of mixed proportion instead, system can't normally move.Obviously, existing fire-fighting foams proporting system exists problem poor for applicability.
In view of this, demand developing a kind of fire-fighting foams proporting system that is applicable to multiple foam solution urgently, and can effectively ensure the mixing ratio precision of each injection apparatus spray liquid flow of fire fighting truck.
The utility model content
At above-mentioned defective, the technical problem that the utility model solves is, a kind of fire-fighting foams mixed proportion control system is provided, and can improve the range of application of foam solution and water mixing ratio, thereby make fire fighting truck can be suitable for the foam solution of any kind.On this basis, the utility model also provides a kind of fire fighting truck with this system.
The fire-fighting foams mixed proportion control system that the utility model provides comprises the water pot of storage fire-fighting medium and the fire pump that medium is prevented in concentrated tank, pump cancellation, water cannon, mixed liquor flowmeter, foam solution flowmeter, Venturi tube, foam solution flow control valve and the controller of output fire-fighting medium; Wherein, the liquid outlet of described water pot is communicated with the inlet of described fire pump, and the liquid outlet of described fire pump is communicated with first inlet of described Venturi tube and the liquid outlet of described Venturi tube is communicated with the inlet of described fire pump; The liquid outlet of described concentrated tank is communicated with second inlet on the sidewall of described Venturi tube; Described mixed liquor flowmeter is arranged on the pipeline between fire pump and the water cannon, and described foam solution flowmeter and foam solution flow control valve are successively set on the pipeline between concentrated tank and the Venturi tube; The flow value that described mixed liquor flowmeter and foam solution flowmeter detect also exports described controller respectively to, and described controller is according to the driving signal of the described foam solution flow-control valve opening of relevant parameter output control; Also comprise input unit, be used to import the required mixing ratio of current working and export controller to; Described controller comprises:
Receiving element is used to the mixed liquor flow value that receives the required mixing ratio of current working and obtain in real time;
The pre-value setup unit is used for default first relation table between the mixed liquor flow value and foam solution flow-control valve opening under ratio and the default required mixing ratio that mixes;
The comparison query unit, be used to judge that whether the required mixing ratio of current working is less than the default ratio that mixes, if then by searching the first default relation table, the driving signal of output and the real-time corresponding foam solution flow-control of mixed liquor flow value valve opening is to described foam solution flow control valve.
Preferably, described receiving element also is used to receive real-time foam solution flow value; Described pre-value setup unit also is used for second relation table between the mixed liquor flow value and foam solution flow value under the default required mixing ratio; The required mixing ratio of described comparison query unit judges current working is not less than the default ratio that mixes, then obtain and the corresponding foam solution flow value of mixed liquor flow in real time by searching default second relation table, and comparing with corresponding foam solution flow value of real-time mixed liquor flow and real-time foam solution flow value of will obtaining; Control the driving signal of the aperture of described foam solution flow control valve according to this comparative result output.
Preferably, also comprise first valve and second valve, wherein, first valve is arranged on the fluid pipeline that is communicated with the liquid outlet of described concentrated tank, and second valve is arranged on the pipeline between the fluid pipeline in downstream of the liquid outlet of described water pump and described first valve.
Preferably, also comprise the 4th valve, described the 4th valve is arranged on the pipeline that is communicated with the inlet of described Venturi tube.
Preferably, also comprise manual foam solution flow valve, the inlet of described manual foam solution flow valve is communicated with the liquid outlet of concentrated tank, second inlet on the sidewall of liquid outlet and described Venturi tube is communicated with.
Preferably, also comprise the 3rd valve, described the 3rd valve is arranged on the pipeline between the inlet of the liquid outlet of described water pot and fire pump.
Preferably, also comprise check-valves, described check-valves is arranged on the pipeline that is communicated with the liquid outlet of fire pump
The fire fighting truck that the utility model provides comprises chassis, lifting arm support and job platform, and described job platform is connected with the chassis by lifting arm support, it is characterized in that, also comprises foregoing fire-fighting foams mixed proportion control system.
Preferably, the water cannon of described fire-fighting foams mixed proportion control system is specially manual water cannon and fire water monitor, and wherein, manually water cannon is arranged on the described chassis, and fire water monitor is arranged on the described job platform; Described mixed liquor flowmeter specifically is arranged on the position near the fire fighting truck back axle.
The utility model has carried out optimal design on the basis of existing fire-fighting foams mixed proportion control technology, set in advance the relation table of mixed liquor flow and foam solution flow-control valve opening according to different mixing ratio, guarantee that by changing control strategy the foam solution flow crosses when low, the proportional precision of mixed liquor meets design requirement.When reality is used,, then search the driving signal of corresponding foam solution flow-control valve opening, with the aperture of control foam solution flow control valve by the real-time flow data of measuring mixed liquor if the foam solution and the mixing ratio of water are lower than the ratio that mixes of systemic presupposition.
Compared with prior art; the utility model is crossed low and the foam solution flow sensor can not detect under the applying working condition of foam solution flow at the foam solution flow; also can guarantee the accurate proportioning of mixed liquor, thereby make fire-fighting system can be suitable for any category-A, category-B foam solution.Through a large amount of test data analyzers, the utility model the ratio of suitable foam mixing liquid can in 3 ‰～10% scope, regulate, improved the adaptability of fire-fighting system greatly.
In the preferred version of control system described in the utility model, have additional manual foam solution flow valve, this manual foam solution flow valve and foam solution flow control valve are arranged in parallel between foam tank and Venturi tube.Like this, when the manual water cannon of needs carried out fire-fighting and rescue, the operator can realize the adjusting of multiple ratio by manual foam solution flow valve, satisfied the needs of fire extinguishing; In addition, when automatic control system breaks down, also can regulate the proportioning of mixed liquor, can further improve dependability by manual foam solution flow valve.
The fire-fighting foams mixed proportion control system that the utility model provides is applicable to fire fighting truck, is specially adapted to elevating fire truck.
Description of drawings
Fig. 1 is the block diagram of the mixed proportion of fire-fighting foams described in specific embodiment control method;
Fig. 2 is the fundamental diagram of the mixed proportion of fire-fighting foams described in specific embodiment control system;
Fig. 3 is the work block diagram of controller described in the specific embodiment;
Fig. 4 is the overall structure schematic diagram of fire fighting truck described in the specific embodiment.
Among the figure:
Water pot 1, concentrated tank 2, fire pump 3, manual water cannon 41, fire water monitor 42, mixed liquor flowmeter 5, foam solution flowmeter 6, Venturi tube 7, foam solution flow control valve 8, the 3rd valve 9, first valve 10, second valve 11, manual foam solution flow valve 12, check-valves 13, water cannon water outlet butterfly valve 14, the 4th valve 15, input unit 31, controller 32, receiving element 321, pre-value setup unit 322, comparison query unit 323;
Chassis 20, lifting arm support 30, job platform 40.
The specific embodiment
The utility model has carried out the optimal design of control system based on existing fire-fighting foams mixed proportion control technology, and this system can improve the range of application of foam solution and water mixing ratio, thereby makes fire fighting truck can be suitable for the foam solution of any kind.
Specify present embodiment below in conjunction with Figure of description.
See also Fig. 1, this figure is the block diagram of the described fire-fighting foams mixed proportion of present embodiment control method.
The ratio that mixes that this method is used to control foam solution and water, carry out according to following step:
101, obtain the required mixing ratio of current working; Described herein mixing ratio is the ratio of foam solution and water in the mixed liquor, and this ratio range is specially 3 ‰～10%.
102, judge that whether the required mixing ratio of current working is less than the default ratio that mixes, if then execution in step 103; Should be appreciated that the mixing ratio that different fire-fighting systems are suitable for is all inequality, described default mixing ratio should be determined based on the accuracy of detection of the foam solution flow sensor of fire-fighting system.
103, obtain the mixed liquor flow value in real time, search and the corresponding foam solution flow-control of this mixed liquor flow value valve opening according to first relation table between mixed liquor flow value and the foam solution flow-control valve opening under the default required mixing ratio.
104, the driving signal of the described foam solution flow-control valve opening of output control.
Compared with prior art, cross low and the foam solution flow sensor can not detect under the applying working condition of foam solution flow at the foam solution flow, this method also can be guaranteed the accurate proportioning of mixed liquor, thereby makes fire-fighting system can be suitable for the foam solution of any kind.
If the judged result of step 102 characterizes the required mixing ratio of current working and is not less than the default ratio that mixes, then execution in step 103 '.
103 ', obtain mixed liquor flow value and foam solution flow value in real time, the foam solution flow value that obtains is in real time requiredly mixed under the ratio that corresponding foam solution flow value compares in second relation table between the mixed liquor flow value and foam solution flow value with default, and the driving signal of the aperture of described foam solution flow control valve is controlled in 104 outputs according to the comparative result execution in step.
On the basis of aforementioned fire-fighting foams mixed proportion control method, present embodiment also provides a kind of fire-fighting foams mixed proportion control system, specifically sees also Fig. 2 and Fig. 3; Wherein, Fig. 2 is the fundamental diagram of the mixed proportion of fire-fighting foams described in present embodiment control system, and Fig. 3 is the unit block diagram of this system's controller used thereby.
As shown in Figure 2, this fire-fighting foams mixed proportion control system comprises the water pot 1 of storing the fire-fighting medium and concentrated tank 2, the fire pump 3 of the anti-medium of pump cancellation, water cannon, mixed liquor flowmeter 5, foam solution flowmeter 6, Venturi tube 7, foam solution flow control valve 8 and the controller (not shown) of output fire-fighting medium.
Wherein, the liquid outlet of water pot 1 is communicated with the inlet of fire pump 3, and the pipeline between the inlet of the liquid outlet of water pot 1 and fire pump 3 is provided with the 3rd valve 9.The liquid outlet of fire pump 3 is communicated with first inlet (miner diameter end) of Venturi tube 7, and the liquid outlet of Venturi tube 7 (bigger diameter end) is communicated with the inlet of fire pump 3; Second inlet on the sidewall of the liquid outlet of concentrated tank 2 and Venturi tube 7 (pressure flow forms the 3rd interface of vacuum in the side when conical pipe) is communicated with.
Mixed liquor flowmeter 5 is arranged on the pipeline between fire pump 3 and the water cannon, is used to detect the output flow value of mixed liquor.Particularly, water cannon described in this programme comprises and is arranged at manual water cannon 41 and fire water monitor 42.Need to prove that the mixed liquor flowmeter 5 shown in this schematic diagram is arranged on the pipeline between manual water cannon 41 and the fire water monitor 42, from the layout of whole-control system, mixed liquor flowmeter 5 is installed in back axle position, chassis; In fact, the mixed liquor flowmeter also can be arranged on the upstream side of manual water cannon, promptly is installed in the vehicle leading portion, to cause flowmeter porch fluid flow state very unstable but so be provided with, the measuring-signal instability, thus make mixing ratio inaccurate, influence the fire-fighting and rescue effect.
Foam solution flowmeter 6 and foam solution flow control valve 8 are successively set on the pipeline between concentrated tank 2 and the Venturi tube 7; And the flow value that mixed liquor flowmeter 5 and foam solution flowmeter 6 detect also exports the controller (not shown) respectively to, and controller is according to the driving signal of relevant parameter output control foam solution flow control valve 8 apertures; Please in the lump referring to Fig. 3, this figure is the work block diagram of described controller.
As shown in Figure 3, input unit 31 is used to import the required mixing ratio of current working and exports controller 32 to; Controller 32 comprises receiving element 321, pre-value setup unit 322 and comparison query unit 323; Wherein, receiving element 321 is used to the mixed liquor flow value that receives the required mixing ratio of current working and obtain in real time; Pre-value setup unit 322 is used for default first relation table between the mixed liquor flow value and foam solution flow-control valve opening under ratio and the default required mixing ratio that mixes; Comparison query unit 323 is used to judge that whether the required mixing ratio of current working is less than the default ratio that mixes, if, then by searching the first default relation table, the driving signal of output and the real-time corresponding foam solution flow-control of mixed liquor flow value valve opening is to foam solution flow control valve 8.
Further, receiving element 321 also is used to receive real-time foam solution flow value; Pre-value setup unit 322 also is used for second relation table between the mixed liquor flow value and foam solution flow value under the default required mixing ratio; If comparison query unit 13 is judged the required mixing ratio of current working and is not less than the default ratio that mixes, then obtain and the corresponding foam solution flow value of mixed liquor flow in real time by searching default second relation table, and comparing with corresponding foam solution flow value of real-time mixed liquor flow and real-time foam solution flow value of will obtaining; Control the driving signal of the aperture of described foam solution flow control valve 8 according to this comparative result output.
In addition, because all kinds of foam solutions all can etching system pipeline and related elements, thereby influence the serviceability and the life-span of system.Present embodiment is provided with washing capacity, to avoid the long-term attached tube circuit component of foam raffinate to produce corrosion, as shown in Figure 2, the fluid pipeline P1 that is communicated with the liquid outlet of concentrated tank 2 is provided with first valve 10, and the pipeline P2 between the fluid pipeline P1 in the downstream of the liquid outlet of water pump 3 and first valve 10 is provided with second valve 11.Under the normality, second valve 11 is in closed condition.After each foam jet operation, close first valve 10, open second valve 11, and start fire pump 3, can carry out the cleaning of pipe-line system.
In addition, the pipeline P3 that is communicated with the liquid outlet of fire pump 3 is provided with check-valves 13, to prevent the fire-fighting medium back flow.The pipeline P4 that is communicated with at the inlet with Venturi tube 7 is provided with the 4th valve 15, switches to be implemented between water spray operation and the spray foam operation.
Be subjected to the restriction of high lifting kind fire fighting truck pipeline condition, mixed liquor flowmeter 5 is arranged on the pipeline between manual water cannon 41 and the fire water monitor 42, that is, mixed liquor flowmeter 5 only is installed near the back axle, could satisfy the certainty of measurement requirement; Tank body big gun and hydraulic giant interface all are arranged on front part of vehicle.As shown in Figure 3, mixed liquor flowmeter 5 is energy measurement tank body big gun and the manual flow that sprays of hydraulic giant not, like this, when using the tank body big gun and manually hydraulic giant carrying out fire-fighting and rescue, can't carry out proportion control by automatic spume proportionality mixer systems, thereby make mixing ratio inaccurate, and then influence the effect of fire-fighting and rescue.
For this reason, present embodiment also comprises manual foam solution flow valve 12, and manually the inlet of foam solution flow valve 12 is communicated with the liquid outlet of concentrated tank 2, and the liquid outlet of manual foam solution flow valve 12 is communicated with second inlet on the sidewall of Venturi tube 7.That is, this manual foam solution flow valve 12 and foam solution flow control valve 8 are arranged in parallel between concentrated tank 2 and Venturi tube 7.Like this, when the manual water cannon of needs carried out fire-fighting and rescue, the operator can realize the adjusting of multiple ratio by manual foam solution flow valve 12, satisfied the needs of fire extinguishing; In addition, when automatic control system breaks down, also can further improve job stability by the proportioning of manual foam solution flow valve 12 adjusting mixed liquors.
Present embodiment also provides a kind of employing fire fighting truck of fire-fighting foams mixed proportion control system as previously mentioned, sees also Fig. 4, the figure shows the overall structure schematic diagram of fire fighting truck.
This fire fighting truck comprises chassis 20, lifting arm support 30 and job platform 40, and job platform 40 is connected with chassis 20 by lifting arm support 30, also comprises foregoing fire-fighting foams mixed proportion control system.What specify is, main function components such as the described chassis 20 of present embodiment, lifting arm support 30 and job platform 40 and prior art are identical, and this paper is not described in detail.
The concrete operations of this fire-fighting foams mixed proportion control system of brief description below:
1, the fire-fighting operation operating mode one: fire pump 3 from water pot 1 through the suction of the 3rd valve 9 or directly connect soft suction hose and absorb water from the pond from fire pump water inlet pipe interface, the press water after the fire pump supercharging from fire pump flow through check-valves 13 upwards by ball valve from (tank deck) manual water cannon 41 sprinkling fires or directly from both sides fire pump press water outlet water receiving band, hydraulic giant fire extinguishing.
2, the fire-fighting operation operating mode two: through the suction of the 3rd valve 9 or directly connect soft suction hose from fire pump water inlet pipe interface and absorb water from the pond, the press water after the fire pump supercharging upwards flows to fire water monitor 42 or external hydraulic giant sprinkling fire by mixed liquor flowmeter 5, water cannon water outlet butterfly valve 14 from the fire pump check-valves 13 of flowing through to fire pump 3 from water pot 1.
3, the fire-fighting operation operating mode three: introduce foam solution on above two kinds of normal water spray working foundations, realize the foam jet fire extinguishing.Concrete operations are as follows: open the 4th valve 15, press water flows back to fire pump 3 water inlet pipes from Venturi tube 7; Open first valve 10 and foam solution flow control valve 8 again, foam solution just flows back to fire pump 3 by foam solution flowmeter 5 and Venturi tube 7, finishes foam, water mixing.Perhaps close foam solution flow control valve 8, open the flow that manual foam solution flow valve 12 is controlled foam solutions, to mix the precision of ratio under effective control specific situation.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. fire-fighting foams mixed proportion control system comprises the water pot of storage fire-fighting medium and the fire pump that medium is prevented in concentrated tank, pump cancellation, water cannon, mixed liquor flowmeter, foam solution flowmeter, Venturi tube, foam solution flow control valve and the controller of output fire-fighting medium; Wherein, the liquid outlet of described water pot is communicated with the inlet of described fire pump, and the liquid outlet of described fire pump is communicated with first inlet of described Venturi tube and the liquid outlet of described Venturi tube is communicated with the inlet of described fire pump; The liquid outlet of described concentrated tank is communicated with second inlet on the sidewall of described Venturi tube; Described mixed liquor flowmeter is arranged on the pipeline between fire pump and the water cannon, and described foam solution flowmeter and foam solution flow control valve are successively set on the pipeline between concentrated tank and the Venturi tube; The flow value that described mixed liquor flowmeter and foam solution flowmeter detect also exports described controller respectively to, and described controller is according to the driving signal of the described foam solution flow-control valve opening of relevant parameter output control; It is characterized in that, also comprise input unit, be used to import the required mixing ratio of current working and export controller to; Described controller comprises:
Receiving element is used to the mixed liquor flow value that receives the required mixing ratio of current working and obtain in real time;
The pre-value setup unit is used for default first relation table between the mixed liquor flow value and foam solution flow-control valve opening under ratio and the default required mixing ratio that mixes;
The comparison query unit, be used to judge that whether the required mixing ratio of current working is less than the default ratio that mixes, if then by searching the first default relation table, the driving signal of output and the real-time corresponding foam solution flow-control of mixed liquor flow value valve opening is to described foam solution flow control valve.
2. fire-fighting foams mixed proportion control system according to claim 1 is characterized in that, described receiving element also is used to receive real-time foam solution flow value; Described pre-value setup unit also is used for second relation table between the mixed liquor flow value and foam solution flow value under the default required mixing ratio;
The required mixing ratio of described comparison query unit judges current working is not less than the default ratio that mixes, then obtain and the corresponding foam solution flow value of mixed liquor flow in real time by searching default second relation table, and comparing with corresponding foam solution flow value of real-time mixed liquor flow and real-time foam solution flow value of will obtaining; Control the driving signal of the aperture of described foam solution flow control valve according to this comparative result output.
3. fire-fighting foams mixed proportion control system according to claim 1 and 2, it is characterized in that, also comprise first valve and second valve, wherein, first valve is arranged on the fluid pipeline that is communicated with the liquid outlet of described concentrated tank, and second valve is arranged on the pipeline between the fluid pipeline in downstream of the liquid outlet of described water pump and described first valve.
4. fire-fighting foams mixed proportion control system according to claim 3 is characterized in that, also comprises the 4th valve, and described the 4th valve is arranged on the pipeline that is communicated with the inlet of described Venturi tube.
5. fire-fighting foams mixed proportion control system according to claim 3, it is characterized in that, also comprise manual foam solution flow valve, the inlet of described manual foam solution flow valve is communicated with the liquid outlet of concentrated tank, second inlet on the sidewall of liquid outlet and described Venturi tube is communicated with.
6. fire-fighting foams mixed proportion control system according to claim 3 is characterized in that, also comprises the 3rd valve, and described the 3rd valve is arranged on the pipeline between the inlet of the liquid outlet of described water pot and fire pump.
7. fire-fighting foams mixed proportion control system according to claim 3 is characterized in that also comprise check-valves, described check-valves is arranged on the pipeline that is communicated with the liquid outlet of fire pump.
8. fire fighting truck comprises chassis, lifting arm support and job platform, and described job platform is connected with the chassis by lifting arm support, it is characterized in that, also comprises as each described fire-fighting foams mixed proportion control system in the claim 3 to 8.
9. fire fighting truck according to claim 8 is characterized in that, the water cannon of described fire-fighting foams mixed proportion control system is specially manual water cannon and fire water monitor, and wherein, manually water cannon is arranged on the described chassis, and fire water monitor is arranged on the described job platform; Described mixed liquor flowmeter specifically is arranged on the position near the fire fighting truck back axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920267461XU CN201529337U (en) | 2009-11-06 | 2009-11-06 | Fire-fighting foam mixing ratio control system and fire engine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920267461XU CN201529337U (en) | 2009-11-06 | 2009-11-06 | Fire-fighting foam mixing ratio control system and fire engine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201529337U true CN201529337U (en) | 2010-07-21 |
Family
ID=42524748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920267461XU Expired - Lifetime CN201529337U (en) | 2009-11-06 | 2009-11-06 | Fire-fighting foam mixing ratio control system and fire engine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201529337U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495644A (en) * | 2011-11-30 | 2012-06-13 | 中国科学院自动化研究所 | Compression air foam mixed control system of fire truck |
| CN102053631B (en) * | 2009-11-06 | 2013-05-15 | 徐州重型机械有限公司 | Fire-fighting foam mixing ratio control method, system and fire-fighting truck provided therewith |
| 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 |
| CN104606811A (en) * | 2014-12-19 | 2015-05-13 | 中联重科股份有限公司 | Venturi tube, foam ratio mixing controlling system and fire fighting truck |
| CN106730545A (en) * | 2016-12-26 | 2017-05-31 | 威特龙消防安全集团股份公司 | Fine water mist fire-extinguishing system additive measures injected system |
| CN107158609A (en) * | 2017-06-02 | 2017-09-15 | 公安部天津消防研究所 | One kind is based on servo-controlled extinguishing chemical ratio adding set and implementation method |
| 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 |
| CN114306996A (en) * | 2021-12-31 | 2022-04-12 | 上海震旦施密茨消防装备有限公司 | Compressed air foam generating device and using method thereof |
-
2009
- 2009-11-06 CN CN200920267461XU patent/CN201529337U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053631B (en) * | 2009-11-06 | 2013-05-15 | 徐州重型机械有限公司 | Fire-fighting foam mixing ratio control method, system and fire-fighting truck provided therewith |
| CN102495644A (en) * | 2011-11-30 | 2012-06-13 | 中国科学院自动化研究所 | Compression air foam mixed control system of fire truck |
| CN102495644B (en) * | 2011-11-30 | 2014-02-12 | 中国科学院自动化研究所 | Compression air foam mixed control system of fire truck |
| 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 |
| CN104606811A (en) * | 2014-12-19 | 2015-05-13 | 中联重科股份有限公司 | Venturi tube, foam ratio mixing controlling system and fire fighting truck |
| CN106730545A (en) * | 2016-12-26 | 2017-05-31 | 威特龙消防安全集团股份公司 | Fine water mist fire-extinguishing system additive measures injected system |
| CN106730545B (en) * | 2016-12-26 | 2020-05-19 | 威特龙消防安全集团股份公司 | Additive metering injection system of water mist fire extinguishing system |
| CN107158609A (en) * | 2017-06-02 | 2017-09-15 | 公安部天津消防研究所 | One kind is based on servo-controlled extinguishing chemical ratio adding set and implementation method |
| 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 |
| CN114306996A (en) * | 2021-12-31 | 2022-04-12 | 上海震旦施密茨消防装备有限公司 | Compressed air foam generating device and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201529337U (en) | Fire-fighting foam mixing ratio control system and fire engine with same | |
| CN109481871B (en) | Vehicle-mounted high-flow fire-fighting foam fluid mixing system | |
| WO2007061711A3 (en) | Fire suppression system | |
| US6921027B2 (en) | Truck wash automatic chemical ratio proportioning | |
| CN102053631B (en) | Fire-fighting foam mixing ratio control method, system and fire-fighting truck provided therewith | |
| CN206700539U (en) | A kind of fixed CAFS | |
| KR20100113544A (en) | Foam proportioning system with low-end controller | |
| CN109899091B (en) | Reverse control method for material ratio of mixing station | |
| CN103816633A (en) | Intelligent proportionally-mixing system for foam | |
| JP2013509997A (en) | Cleaning / detection system for three-acting valve, solvent valve and spray gun in automatic machines | |
| US10758759B2 (en) | Surrogate foam test system | |
| CN102233612A (en) | Tank cleaning apparatus, and concrete mixing and transporting car | |
| CN103566506A (en) | Foam proportion mixing system and device of airport fire truck | |
| JP2008125433A (en) | Chemical liquid-mixing and spraying apparatus | |
| CN100584412C (en) | Compressed air foam fire-extinguishing apparatus | |
| CN201049165Y (en) | Negative pressure compressed air A kind foam fire-extinguishing device | |
| CN201681319U (en) | Intelligent control unit of compressed air foam system | |
| CN2894740Y (en) | Compressed air foam fire extinguishing device | |
| CN2722962Y (en) | A class foam first extinguisher of compressed air | |
| CN205460597U (en) | Fire engine is with flowing buret way | |
| CN209792189U (en) | Urea case belt cleaning device | |
| CN103464343A (en) | Adhesive conveying system with dosage control | |
| CN203276050U (en) | CAN bus-based fire fighting truck compressed air and foam mixing system | |
| CN204563379U (en) | The integrated fire-fighting system of compressed-air foam integral type | |
| KR20150055806A (en) | System and method for calculating solvent quantity of automatic agitation painting unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100721 Effective date of abandoning: 20091106 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100721 Effective date of abandoning: 20091106 |
|
| RGAV | Abandon patent right to avoid regrant |