CN210583428U - Negative pressure type foam proportion automatic mixing system for fire truck - Google Patents
Negative pressure type foam proportion automatic mixing system for fire truck Download PDFInfo
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- CN210583428U CN210583428U CN201921376242.5U CN201921376242U CN210583428U CN 210583428 U CN210583428 U CN 210583428U CN 201921376242 U CN201921376242 U CN 201921376242U CN 210583428 U CN210583428 U CN 210583428U
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- 239000006260 foam Substances 0.000 title claims abstract description 118
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 142
- 239000007788 liquid Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Abstract
The utility model relates to a negative pressure formula foam proportion automatic mixing system for fire engine, including the water pump, the inlet tube is connected to the water pump below, inlet tube side connects water pipe one, the outlet pipe is connected to the water pump top, outlet pipe side connects water pipe one, be equipped with water flow sensor in the outlet pipe, water pipe one middle part has connect venturi ooff valve, be equipped with venturi ooff valve on the water pipe one, venturi side has connect water pipe two, be equipped with the foam flowmeter in the water pipe two, be equipped with the foam proportional valve on the water pipe two ends, water pipe two ends are equipped with the outer foam mouth that inhales, water pipe two sides have connect water pipe three, be equipped with the foam ooff valve on the water pipe three, water pipe three ends have connect: the foam system and the main water path control system are integrated, the technology is controllable, the maintenance and the repair are convenient, the operation of a human-computer interaction interface is simple, and the system maintenance is clear.
Description
Technical Field
The utility model relates to a fire extinguishing systems field particularly, relates to a negative pressure formula foam proportion automatic mixing system for fire engine.
Background
At present, the foam proportion mixing system on the market is mostly split type, and if the American is vigorous, the foam proportion mixing system is characterized in that: outside being independent of main water route, only need to insert main water route during the use can. The disadvantages are that: the technology is uncontrollable for fire-fighting equipment manufacturers, and the product characteristics are not available. And the cost is high.
For the problems in the system technology, no effective solution is provided at present.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a negative pressure formula foam proportion automatic-mixing system for fire engine can make foam system and main water route control system combine together.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows: 1. the utility model provides a negative pressure formula foam proportion automatic mixing system for fire engine, includes the water pump, its characterized in that, the inlet tube is connected to the water pump below, advance water piping side and connect water pipe one, connect out above the water pump, go out water piping side and connect water pipe one, be equipped with discharge in the play water pipe, the water pipe middle part has connect the venturi, be equipped with the venturi ooff valve on the water pipe one, venturi side has connect water pipe two, be equipped with the foam flowmeter in the water pipe two, be equipped with the foam proportional valve on water pipe two, water pipe two ends are equipped with the outer foam mouth that inhales, water pipe two sides side is connected water pipe three, be equipped with the foam ooff valve on water pipe three, water pipe three ends has connect the foam jar, be equipped with foam level sensor in the foam jar, discharge sensor, venturi ooff valve, foam, The foam switch valve and the foam liquid level sensor are electrically connected with the controller.
Furthermore, the tail end of the water inlet pipe is provided with a water inlet.
Furthermore, a water outlet is arranged at the tail end of the water outlet pipe.
Further, the water flow sensor is close to the water outlet.
Furthermore, the venturi switch valve is close to the connection of the water outlet pipe and the first water pipe.
Further, the foam flow meter is close to the venturi tube, and a foam proportional valve is arranged beside the foam flow meter.
Further, the venturi is provided with three interfaces.
Furthermore, the controller is connected with a water flow sensor, a Venturi switch valve, a foam flow meter, a foam proportional valve, a foam switch valve and a foam liquid level sensor through a CAN bus.
The utility model has the advantages that: the foam system is integrated with the main water path control system, the foam system and the main water path control system are directly designed together in the development process of products, the main water path and the foam pipeline are naturally combined, the technology is controllable, the maintenance and the repair are convenient, the system can automatically adjust the foam flow according to the water output quantity of the pump, and the foam proportion is kept in a constant range all the time. The man-machine interaction interface is simple to operate, and the system maintenance is clear.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a negative-pressure foam-proportion automatic mixing system for a fire fighting truck according to an embodiment of the present invention
In the figure: 1. a water inlet; 2. a water inlet pipe; 3. a first water pipe; 4. a venturi tube; 5. a foam flow meter; 6. a foam proportioning valve; 7. a water pipe II; 8. an external foam suction port; 9. a water pipe III; 10. a foam on-off valve; 11. a foam tank; 12. a foam level sensor; 13. a controller; 14. a water outlet; 15. a venturi on-off valve; 16. a water pump; 17. a water outlet pipe; 18. a water flow meter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in figure 1, according to the embodiment of the present invention, the negative pressure type foam proportion automatic mixing system for the fire fighting truck comprises a water pump 16, wherein a water inlet pipe 2 is connected below the water pump 16, a water pipe 3 is connected to the side of the water inlet pipe 2, a water outlet pipe 17 is connected above the water pump, the water pipe 3 is connected to the side of the water outlet pipe, a water flow sensor 18 is arranged in the water outlet pipe 17, a venturi tube 4 is connected to the middle of the water pipe 3, a venturi switch valve 15 is arranged on the water pipe 3, a water pipe 7 is connected to the side of the venturi tube 4, a foam flowmeter 5 is arranged in the water pipe 7, a foam proportion valve 6 is arranged on the water pipe 7, an external foam suction port 8 is arranged at the end of the water pipe two 7, a water pipe three 9 is connected to the side of the water pipe two 7, a foam switch, and a foam liquid level sensor 12 is arranged in the foam tank 11, and the water flow sensor 18, the Venturi switch valve 15, the foam flow meter 5, the foam proportional valve 6, the foam switch valve 10 and the foam liquid level sensor 12 are all electrically connected with a controller 13. The tail end of the water inlet pipe 2 is provided with a water inlet 1. When the water inlet 1 is connected to a water source, water flows in from the water inlet pipe 2 through the water pump 16, under the condition that the water flows out from the water pump 16, the water flows into the water outlet pipe 17, when the water passes through the water flow sensor 18, the controller 13 monitors the flow passing through the water outlet pipe 17 in real time through a CAN (controller area network) line, the controller 13 receives a foam proportion mixing signal, the controller 13 controls through the CAN line to open the closed foam switch valve 10, so that the foam in the foam tank 11 flows into the water pipe III 9, the controller controls through the CAN line to open the closed venturi switch valve 15, the foam proportion valve 6 is opened according to the requirement set by the controller 13, the venturi pipe 4 sucks foam, and the foam flows into the water outlet pipe 17 through the venturi switch valve 15 to be mixed with the water. When the foam passes through the foam proportional valve 6 and the foam flowmeter 5, the controller 13 monitors whether the foam flow is in a set range, and the opening degree of the foam proportional valve 6 can be automatically adjusted according to the water flow after being opened so as to ensure that the foam proportional mixing is always kept at a set value.
The end of the water outlet pipe is provided with a water outlet 14, and the arrangement is used for ensuring that water and foam can flow out normally.
The water flow sensor is close to the water outlet 14, and the arrangement controls the proportional mixing of the foam and the water through the water flow of the water outlet pipe 17, so as to ensure that the proportional mixing of the outflow water is kept at a set value.
The Venturi switch valve 15 is close to the joint of the water outlet pipe 17 and the water pipe I3, and foam can smoothly enter the water outlet pipe 17 due to the arrangement. Ensuring that the foam is mixed with the water.
The foam flow meter is close to the Venturi tube 4, and a foam proportional valve 6 is arranged beside the foam flow meter 5. The actual flow of foam can be obtained by this arrangement and the controller 13 can adjust the foam flow at any time via the foam proportioning valve 6.
The venturi 4 pipe is provided with three connectors. This arrangement allows the venturi 4 tube to enhance the adsorption capacity.
The controller is connected with the water flow sensor, the Venturi switch valve, the foam flowmeter, the foam proportional valve, the foam switch valve and the foam liquid level sensor through the CAN bus. This arrangement controls the automatic foam proportioning system through overall signal feedback.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When specifically using, according to under the pump water state, the foam storage capacity of foam level sensor monitoring foam tank the inside is passed through to the controller, the controller passes through water flow sensor real time monitoring pump water flow, after the controller received foam proportion mixing signal, the foam ooff valve was opened to the controller, opens venturi ooff valve to open the foam proportional valve according to setting for the requirement, venturi begins to inhale the foam, whether the controller passes through foam flowmeter control foam flow and is setting for the scope. After the foam proportional valve is opened, the opening degree can be automatically adjusted according to the water flow so as to achieve the purpose that the foam proportional mixing is always kept at a set value.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a negative pressure formula foam proportion automatic-mixing system for fire engine, includes water pump (16), its characterized in that, inlet tube (2) is connected to water pump (16) below, inlet tube (2) one side is connected water pipe (3), outlet pipe (17) is connected to the water pump top, outlet pipe one side is connected water pipe (3), be equipped with water flow sensor (18) in outlet pipe (17), venturi (4) have been connect at water pipe (3) middle part, be equipped with venturi ooff valve (15) on water pipe (3), venturi (4) one side has connect water pipe two (7), be equipped with foam flowmeter (5) in water pipe two (7), be equipped with foam proportional valve (6) on water pipe two (7), water pipe two (7) end is equipped with outer foam mouth (8), water pipe two (7) side has connect water pipe three (9), be equipped with foam ooff valve (10) on three (9) of water pipe, three (9) end-to-end joints of water pipe have foam tank (11), be equipped with foam level sensor (12) in foam tank (11), water flow sensor (18), venturi ooff valve (15), foam flowmeter (5), foam proportional valve (6), foam ooff valve (10), foam level sensor (12) all are connected with controller (13) electricity.
2. The negative-pressure type automatic foam proportion mixing system for the fire fighting truck as claimed in claim 1, wherein the tail end of the water inlet pipe (2) is provided with a water inlet (1).
3. The negative-pressure type automatic foam proportion mixing system for the fire fighting truck as claimed in claim 1, wherein the tail end of the water outlet pipe (17) is provided with a water outlet (14).
4. The negative-pressure type automatic foam proportion mixing system for the fire engine as recited in claim 1, wherein the water flow sensor (18) is close to the water outlet (14).
5. The negative-pressure type automatic foam proportion mixing system for the fire engine as recited in claim 1, wherein the venturi switch valve (15) is close to the connection of the water outlet pipe (17) and the first water pipe (3).
6. The negative-pressure type automatic foam proportion mixing system for the fire fighting truck as claimed in claim 1, wherein the foam flow meter (5) is close to the venturi tube (4), and a foam proportion valve (6) is arranged beside the foam flow meter (5).
7. The negative-pressure type automatic foam proportion mixing system for the fire fighting truck as recited in claim 1, characterized in that the venturi tube (4) is provided with three ports.
8. The negative-pressure type automatic foam proportion mixing system for the fire fighting truck as claimed in claim 1, wherein the controller (13) is connected with a water flow sensor (18), a venturi switch valve (15), a foam flow meter (5), a foam proportion valve (6), a foam switch valve (10) and a foam liquid level sensor (12) through a CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921376242.5U CN210583428U (en) | 2019-08-23 | 2019-08-23 | Negative pressure type foam proportion automatic mixing system for fire truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921376242.5U CN210583428U (en) | 2019-08-23 | 2019-08-23 | Negative pressure type foam proportion automatic mixing system for fire truck |
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| Publication Number | Publication Date |
|---|---|
| CN210583428U true CN210583428U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921376242.5U Active CN210583428U (en) | 2019-08-23 | 2019-08-23 | Negative pressure type foam proportion automatic mixing system for fire truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404214A (en) * | 2019-08-23 | 2019-11-05 | 上海金盾特种车辆装备有限公司 | A kind of used in fire-fighting suction type froth ratio automixte system |
-
2019
- 2019-08-23 CN CN201921376242.5U patent/CN210583428U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404214A (en) * | 2019-08-23 | 2019-11-05 | 上海金盾特种车辆装备有限公司 | A kind of used in fire-fighting suction type froth ratio automixte system |
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