CN105435403B - A kind of used in fire-fighting flow line - Google Patents
A kind of used in fire-fighting flow line Download PDFInfo
- Publication number
- CN105435403B CN105435403B CN201511014216.4A CN201511014216A CN105435403B CN 105435403 B CN105435403 B CN 105435403B CN 201511014216 A CN201511014216 A CN 201511014216A CN 105435403 B CN105435403 B CN 105435403B
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- China
- Prior art keywords
- fire
- trunnion
- water
- suction line
- pipe
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
Abstract
A kind of used in fire-fighting flow line, it is related to fire fighting truck technical field, its structure includes pressing the sequentially connected suction line of liquid flow path direction, trunnion and diffuser, the second water inlet of the water outlet of diffuser and suction line is connected by return pipe, and flowmeter is set close to the end of suction line in trunnion, the part foam mixed liquor flowed out from the water outlet of diffuser is back in suction line through return pipe, it can be increased the flow value for flowing into suction line in the case where not needing and increasing water-aspirator pressure in this way, and then increase the flow value of entire flow line, simultaneously according to flowmeter to the real time monitoring of flow value, the flow value that foam enters trunnion can be adjusted in real time, and then regulate and control the mixed proportion of water and foam, keep foaming effect more preferable, the foam for ensuring to get when putting out a fire has stability.
Description
Technical field
The present invention relates to fire fighting truck technical fields, and in particular to a kind of used in fire-fighting flow line.
Background technique
The flow line of fire fighting truck is generally used for connection fire pump and fire extinguishing jet device, and fire pump will by flow line
Pressure water is delivered to fire extinguishing jet device, and fire extinguishing jet device is generally fire monitor or Fire branch, so as to by high-pressure water jet
It puts out a fire to fire source.
For fire source of different nature, the extinguishing chemical of fire fighting truck not only includes water, further includes the foams mix of water and foam
Liquid to reach optimal extinguishing effect, or even further includes the sky being mixed in a certain ratio by compressed air, water and foam three
Gas foam mixed liquor.Existing flow line is due to for flowing through among foam mixing liquid or air foam mixed liquor in it
The flow proportional of water and foam is unable to real-time monitoring, thus the foaming effect of foam mixing liquid is bad, often occurs in fire extinguishing
Foam interruption, non-continuous event, affect extinguishing effect, in addition, liquid or foam mixing liquid in existing flow line
Body can only could be increased its flow value by the pressure of increasing pump, will obviously increase the power consumption values of pump in this way, and then increase life
Produce cost.
Summary of the invention
It is an object of the invention to aiming at the shortcomings in the prior art, and provide a kind of used in fire-fighting stream that foaming effect is good
Buret road, the foam which gets in fire extinguishing is continuous, stable, and the flow line is in the pressure of not increasing pump
The flow value of flow line can be increased when force value.
The purpose of the present invention is achieved through the following technical solutions:
A kind of used in fire-fighting flow line is provided, including presses the sequentially connected suction line of liquid flow path direction, trunnion and diffuser,
The water inlet connection of the suction line is used for the high-pressure water pipe of discharge pressure water, and the trunnion is connected with the bubble for conveying foam
Foam pipe, the suction line include the first water inlet and the second water inlet, and first water inlet is connected to the high-pressure water pipe, institute
It states trunnion and is equipped with flowmeter close to the end of the suction line, the water outlet of the diffuser passes through return pipe and the suction line
The second water inlet connection.
Wherein, horn-like trunnion inlet tube is equipped between the trunnion and the suction line, the trunnion inlet tube
Large port connects the suction line, and the portlet of the trunnion inlet tube connects the trunnion.
Wherein, it is equipped between the first water inlet and the high-pressure water pipe of the suction line and pressure water-jet is entered into the sucking
The nozzle of pipe.
Wherein, the return pipe is equipped with the recycle control valve for controlling the return pipe on-off.
Wherein, the recycle control valve is pneumatic control valve.
Wherein, tee tube, the tee tube are equipped between the water outlet of the diffuser and the water inlet of the return pipe
Water inlet connect with the water outlet of the diffuser, the water inlet of the first water outlet of the tee tube and the return pipe connects
It connects, the second water outlet of the tee tube is connect with fire extinguishing jet device.
Wherein, the pipeline that the second water outlet of the tee tube is connect with fire extinguishing jet device is equipped with master control valve.
Wherein, the water outlet of the diffuser is also connected with the air hose for conveying compressed air.
Wherein, the junction of the air hose and the diffuser is equipped with proportional control valve.
Wherein, the air hose is equipped with check valve.
Beneficial effects of the present invention:
Flow line of the invention is connected the second water inlet of the water outlet of diffuser and suction line by return pipe,
And flowmeter is set close to the end of suction line in trunnion, pressure water and foam are mixed into foam mixing liquid in trunnion, from
The part foam mixed liquor of the water outlet outflow of diffuser is back in suction line through return pipe, is not needing to increase water pump in this way
It can be increased the flow value for flowing into suction line in the case where pressure, and then increase the flow value of entire flow line, while basis
Flowmeter can adjust the flow value that foam enters trunnion to the real time monitoring of flow value in real time, and then regulate and control the mixed of water and foam
Composition and division in a proportion example keeps foaming effect more preferable, it is ensured that the foam got when fire extinguishing has stability.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is that a kind of used in fire-fighting flow line of the invention applies the structural schematic diagram in foam mixing liquid.
Fig. 2 is that a kind of used in fire-fighting flow line of the invention applies the structural schematic diagram in air foam mixed liquor.
Include in Fig. 1 and Fig. 2:
1- suction line；
2- trunnion；
3- diffuser；
4- return pipe, 41- recycle control valve；
5- trunnion inlet tube；
6- flowmeter；
7- foamed pipe, 71- foam control valve；
8- high-pressure water pipe；
9- nozzle；
The first tee tube of 10-；
11- fire extinguishing jet device；
12- master control valve；
13- air hose, 131- air shut-off valve；
The first proportional control valve of 14-；
The first check valve of 15-；
The second proportional control valve of 16-；
17- second one-way valve；
The second tee tube of 18-；
19- third tee tube；
The 4th tee tube of 20-.
Specific embodiment
The invention will be further described with the following Examples.
Embodiment 1
A kind of one of the specific embodiment of used in fire-fighting flow line of the invention, as shown in Figure 1 (arrow direction in figure
For fluid flow direction in pipeline), structure includes pressing the sequentially connected suction line 1 in fluid flow direction, trunnion 2 and diffuser
3, the first water inlet of suction line 1 connects water pump by high-pressure water pipe 8, and the second water inlet of suction line 1 by return pipe 4 and expands
The water outlet of separate tube 3 connects, and return pipe 4 is equipped with recycle control valve 41, and horn-like larynx is additionally provided between suction line 1 and trunnion 2
Tube inlet pipe 5, the large port of trunnion inlet tube 5 connect suction line 1, and the portlet of trunnion inlet tube 5 connects trunnion 2, and trunnion 2 leans on
The end of nearly diffuser 3 is connected with foamed pipe 7, and trunnion 2 is equipped with flowmeter 6 close to the end of trunnion inlet tube 5.
As shown in Figure 1, water pump is opened, pressure water enters suction line 1, and then pressure water through the first water inlet of suction line 1
Bubble into trunnion 2, since trunnion 2 is set between trunnion inlet tube 5 and diffuser 3, according to venturi principle, in foamed pipe 7
Foam can be inhaled into automatically in trunnion 2, and pressure water is mixed with foam in trunnion 2, and then just form foam mixing liquid from expansion
Separate tube 3 flows out.The nozzle 9 that pressure water-jet is entered to suction line 1, pressure are equipped between the first water inlet and high-pressure water pipe 8 of suction line 1
Power water injects suction line 1 through nozzle 9, forms low-pressure area in suction line 1 in this way, in the case where recycle control valve 41 is opened,
And then it is back to the part foam mixed liquor flowed out from diffuser 3 in suction line 1 by return pipe 4, so that in water pump
The flow in suction line 1 is increased in the not increased situation of pressure, and then increases the flow value in entire flow line, simultaneously
According to flowmeter 6 to the real time monitoring of the flow value on pipeline, foam control valve 71 can be adjusted in real time, and then is adjusted foam and entered
The flow value of trunnion 2 keeps foaming effect more preferable to regulate and control the mixed proportion of water and foam, it is ensured that the foam got when fire extinguishing
With stability.
Since the large port of trunnion inlet tube 5 connects suction line 1, the portlet of trunnion inlet tube 5 connects trunnion 2, in this way
Minimum pressure area is formed in the portlet of 2 inlet tube of trunnion and trunnion 2, makes to be back to the foam mixing liquid of suction line 1, pressure
Power water is sufficiently mixed with the foam for flowing into trunnion 2 in trunnion 2, and then improves foaming effect.
When recycle control valve 41 is opened, what flowmeter 6 detected is the bubble that flows back in the flow value and return pipe 4 of pressure water
The total flow value of the flow value of foam mixed liquor, when recycle control valve 41 is closed, the flow for the only pressure water that flowmeter 6 detects
Value, since the flow value of pressure water can be obtained by the water yield of water pump, can be obtained in return pipe 4 by subtraction in this way
The flow value of foam mixing liquid of reflux and then reduce cost without the additional setting flowmeter 6 again in return pipe 4.
In the present embodiment, recycle control valve 41 is pneumatic control valve.
As shown in Figure 1, being equipped with the first tee tube the 10, the 1st between the water outlet of diffuser 3 and the water inlet of return pipe 4
The water inlet of siphunculus 10 is connect with the water outlet of diffuser 3, the first water outlet of the first tee tube 10 and the water inlet of return pipe 4
Connection, the second water outlet of the first tee tube 10 connect with fire extinguishing jet device 11, the second water outlet of the first tee tube 10 and
The pipeline that fire extinguishing jet device 11 connects is equipped with master control valve 12.The most of foam flowed out from the water outlet of diffuser 3 is mixed
It closes liquid and puts out a fire through the first tee tube 10 into fire extinguishing jet device 11.
Embodiment 2
The two of the specific embodiment of a kind of used in fire-fighting flow line of the invention, as shown in Figure 2 (arrow direction in figure
For fluid flow direction in pipeline), the main technical schemes of the present embodiment are same as Example 1, do not explain in the present embodiment
Feature no longer repeated herein using the explanation in embodiment 1.The present embodiment the difference from embodiment 1 is that, expanding
The water outlet of separate tube 3 is also connected with the air hose 13 for conveying compressed air, and air hose 13 and the junction of diffuser 3 are equipped with
First proportional control valve 14, so can regulation foam mixing liquid continuously, by a certain percentage flow value and compressed air
Flow value.The first check valve 15 for preventing compressed air from flowing backwards is additionally provided on air hose 13, compressed air is through the first check valve
15 flow to the first proportional control valve 14 mixes with foam mixing liquid.In order to more facilitate, preferably regulate and control foam mixing liquid and pressure
Ratio between contracting air, air hose 13 are equipped with the second one-way valve 17 in parallel with the first check valve 15, and in air hose 13 and
The junction of diffuser 3 is additionally provided with second proportional control valve 16 in parallel with the first proportional control valve 14, and compressed air is through second
Check valve 17 flow to the second proportional control valve 16 and mixes with foam mixing liquid.
Specifically, air hose 13 is equipped with the second tee tube 18, two water outlets of the second tee tube 18 are separately connected first
The water inlet of check valve 15, second one-way valve 17, the pipeline between the first proportional control valve 14 and the water outlet of diffuser 3
Equipped with third tee tube 19, two water outlets of third tee tube 19 are separately connected the first proportional control valve 14, the second ratio control
The water inlet of valve 16 processed.The mixed air foam mixed liquor of first proportional control valve 14 passes through the most of stream of the first tee tube 10
To fire extinguishing jet device 11, small part air foam mixed liquor is back to suction line 1, the second proportional control valve by return pipe 4
16 mixed air foam mixed liquors all flow to fire extinguishing jet device 11 by the 4th tee tube 20.Increasing pipe in this way
While the flow of road, the ratio between compressed air and foam mixing liquid can also be effectively adjusted.
In the present embodiment, air hose 13 is additionally provided with the air shut-off valve 131 for controlling entire 13 on-off of air hose.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. a kind of used in fire-fighting flow line, including press the sequentially connected suction line of liquid flow path direction, trunnion and diffuser, the suction
The water inlet connection for entering pipe is used for the high-pressure water pipe of discharge pressure water, and the trunnion is connected with the foamed pipe for conveying foam,
It is characterized by: the suction line includes the first water inlet and the second water inlet, first water inlet and the high-pressure water pipe
Connection, the trunnion are equipped with flowmeter close to the end of the suction line, and the water outlet of the diffuser passes through return pipe and institute
State the connection of the second water inlet.
2. a kind of used in fire-fighting flow line according to claim 1, it is characterised in that: the trunnion and the suction line
Between be equipped with horn-like trunnion inlet tube, the large port of the trunnion inlet tube connects the suction line, the trunnion entrance
The portlet of pipe connects the trunnion.
3. a kind of used in fire-fighting flow line according to claim 1, it is characterised in that: the first water inlet of the suction line
The nozzle that pressure water-jet is entered to the suction line is equipped between mouth and the high-pressure water pipe.
4. a kind of used in fire-fighting flow line according to claim 1, it is characterised in that: the return pipe is equipped with control institute
State the recycle control valve of return pipe on-off.
5. a kind of used in fire-fighting flow line according to claim 4, it is characterised in that: the recycle control valve is pneumatic
Control valve.
6. according to claim 1 to a kind of used in fire-fighting flow line described in 5 any one, it is characterised in that: the diffusion
Tee tube, the water inlet of the tee tube and the diffuser are equipped between the water outlet of pipe and the water inlet of the return pipe
Water outlet connection, the first water outlet of the tee tube are connect with the water inlet of the return pipe, and the second of the tee tube goes out
The mouth of a river is connect with fire extinguishing jet device.
7. a kind of used in fire-fighting flow line according to claim 6, it is characterised in that: the second water outlet of the tee tube
The pipeline that mouth is connect with fire extinguishing jet device is equipped with master control valve.
8. a kind of used in fire-fighting flow line according to claim 6, it is characterised in that: the water outlet of the diffuser is also
It is connected with the air hose for conveying compressed air.
9. a kind of used in fire-fighting flow line according to claim 8, it is characterised in that: the air hose and the diffusion
The junction of pipe is equipped with proportional control valve.
10. a kind of used in fire-fighting flow line according to claim 8, it is characterised in that: the air hose is equipped with unidirectional
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014216.4A CN105435403B (en) | 2015-12-31 | 2015-12-31 | A kind of used in fire-fighting flow line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014216.4A CN105435403B (en) | 2015-12-31 | 2015-12-31 | A kind of used in fire-fighting flow line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105435403A CN105435403A (en) | 2016-03-30 |
| CN105435403B true CN105435403B (en) | 2018-12-21 |
Family
ID=55546312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511014216.4A Active CN105435403B (en) | 2015-12-31 | 2015-12-31 | A kind of used in fire-fighting flow line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105435403B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2289229B (en) * | 1994-05-04 | 1997-07-30 | Total Feuerschutz Gmbh | Admixing device for foaming agents |
| DE10013974A1 (en) * | 2000-03-21 | 2001-10-04 | Andreas Vigh | Mixer for fire pump outlet has branch connection pipe for foam feed connected across venturi |
| CN101543669A (en) * | 2009-04-03 | 2009-09-30 | 北京中卓时代消防装备科技有限公司 | Vehicular compressed air foam fire-extinguishing system |
| CN201912677U (en) * | 2011-01-19 | 2011-08-03 | 明光市浩淼消防科技发展有限公司 | Vehicle-mounted high-spraying fire extinguisher plant filled with composite extinguishing agent |
| CN102284387A (en) * | 2011-06-21 | 2011-12-21 | 西北农林科技大学 | Venturi principle-based irrigator |
| US20130048318A1 (en) * | 2011-08-23 | 2013-02-28 | Spartan Motors, Inc. | Compressed Air Foam System with Simplified User Interface |
| CN103816633A (en) * | 2014-02-26 | 2014-05-28 | 上海博灿信号设备有限公司 | Intelligent proportionally-mixing system for foam |
| CN205460597U (en) * | 2015-12-31 | 2016-08-17 | 广东永强奥林宝国际消防汽车有限公司 | Fire engine is with flowing buret way |
-
2015
- 2015-12-31 CN CN201511014216.4A patent/CN105435403B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2289229B (en) * | 1994-05-04 | 1997-07-30 | Total Feuerschutz Gmbh | Admixing device for foaming agents |
| DE10013974A1 (en) * | 2000-03-21 | 2001-10-04 | Andreas Vigh | Mixer for fire pump outlet has branch connection pipe for foam feed connected across venturi |
| CN101543669A (en) * | 2009-04-03 | 2009-09-30 | 北京中卓时代消防装备科技有限公司 | Vehicular compressed air foam fire-extinguishing system |
| CN201912677U (en) * | 2011-01-19 | 2011-08-03 | 明光市浩淼消防科技发展有限公司 | Vehicle-mounted high-spraying fire extinguisher plant filled with composite extinguishing agent |
| CN102284387A (en) * | 2011-06-21 | 2011-12-21 | 西北农林科技大学 | Venturi principle-based irrigator |
| US20130048318A1 (en) * | 2011-08-23 | 2013-02-28 | Spartan Motors, Inc. | Compressed Air Foam System with Simplified User Interface |
| CN103816633A (en) * | 2014-02-26 | 2014-05-28 | 上海博灿信号设备有限公司 | Intelligent proportionally-mixing system for foam |
| CN205460597U (en) * | 2015-12-31 | 2016-08-17 | 广东永强奥林宝国际消防汽车有限公司 | Fire engine is with flowing buret way |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105435403A (en) | 2016-03-30 |
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