CN101415943A - Automatic start additive injection system for fire fighting vehicles - Google Patents
Automatic start additive injection system for fire fighting vehicles Download PDFInfo
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- CN101415943A CN101415943A CNA2006800147480A CN200680014748A CN101415943A CN 101415943 A CN101415943 A CN 101415943A CN A2006800147480 A CNA2006800147480 A CN A2006800147480A CN 200680014748 A CN200680014748 A CN 200680014748A CN 101415943 A CN101415943 A CN 101415943A
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- pump
- fluid delivery
- hydraulic pump
- injection system
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Abstract
An additive pump system for fire-fighting vehicles is automatically engaged when the water pump is engaged. Upon engagement of the water pump, the water pump communicates with a hydraulic pump to engage the hydraulic pump. Engagement of the hydraulic pump results in a rise in hydraulic pressure. A pressure switch is tripped when a pressure of a pre-determined set point is reached. The pressure switch communicates with a controller to indicate that sufficient pressure has been obtained. In response to the receiving the signal of sufficient hydraulic pressure, the controller signals the additive pump system to engage the additive pump system.
Description
Technical field
The present invention relates to a kind of additive injection system that is used for fire-fighting vehicle and emergency vehicle.Particularly, the present invention relates to a kind of automatic start additive injection system and/or blast injection system that is used for this vehicle.
Background technique
Traditional additive system that is used for fire-fighting uses multiple following mechanism, described mechanism passes through service, with foam concentrate to the predetermined ratio of water with additive, the foam liquid concentrate of typical for example category-A or category-B fire-fighting foams supplies to one or more exhaust outlets of water pump.System also uses and is designed for other the chemical reagent of spurting into water jet, for example is used for the terroristic chemical reagent of antibiont.The example of additive formulations system is open in people's such as people's such as Klein U.S. Patent No. 6,725,940 and Juidici U.S. Patent No. 6,684,959, and the two is incorporated herein by reference.
Typically, the operator must manually for example start the foam feed proportioning system by engaging the on/off switch.See that fire time is to the normally nervous moment of fire personnel.Initial confusion or communication difficulties may cause the fireman to engage the failure of bubblejet systems between when appropriate.Therefore, flow promoter system may engage and bubblejet systems does not engage, and causes the fire-fighting ability than fire-fighting ability the best or expectation.
In a single day people's such as Arvidson U. S. Patent 6,766,863 discloses a kind of bubblejet systems, wherein detects the current in the delivery hose, foam delivery system just engages automatically.The intrinsic shortcoming of such system is that the use of water-flow signal may provide because the signal of the mistake that the simple vibration of flowmeter causes or because the signal of the mistake that the motion of fire-fighting vehicle causes.
Therefore there is demand, do not need the operator to get involved in case this system's flow promoter system starts with regard to starting bubblejet systems or foam control system, and prevented startup that do not expect or out of season simultaneously automatic startup bubblejet systems.Also have demand to automatic start up system, this system requirements minimum or do not need extra operator's training.
Summary of the invention
A kind of fluid delivery system that is used for fire-fighting vehicle and analog comprises: hydraulic system, thus described hydraulic system comprises the oil hydraulic pump that the hydraulic fluid pressure in the hydraulic system that is connected with hydraulic manifold block increases in response to the joint of oil hydraulic pump; In case thereby be connected water pump engagement hydraulic pump with regard to the automatic water pump that engages with oil hydraulic pump; The additive injection system that is connected with hydraulic manifold block; The pressure switch that is connected with hydraulic system; With the controller that is connected with pressure switch.Alternatively, the fluid delivery system that is used for fire-fighting vehicle and analog comprises: hydraulic system, thus described hydraulic system comprises the oil hydraulic pump that the hydraulic fluid pressure in the hydraulic system that is connected with hydraulic manifold block increases in response to the joint of oil hydraulic pump; In case thereby be connected water pump engagement hydraulic pump with regard to the automatic water pump that engages with oil hydraulic pump; The additive injection system that is connected with hydraulic manifold block; Be used for detecting the device of the hydraulic fluid pressure of hydraulic system; With the device that is used for when the hydraulic fluid pressure that detects reaches predetermined set-points, engaging automatically additive pump system.Another embodiment can be described as a kind of fluid delivery system that is used for fire-fighting vehicle and analog, comprising: be connected the additive injection system that hydraulic pump system is connected; Be used to detect the device of the joint of hydraulic pump system; In case with the just automatic device that engages additive pump system of joint that is used for detecting hydraulic pump system.Additional embodiments comprises the fluid delivery system that is used for fire-fighting vehicle, comprising: hydraulic system, thus the characteristic response that described hydraulic system comprises the hydraulic fluid in the hydraulic system that is connected with hydraulic manifold block is in the joint of oil hydraulic pump and the oil hydraulic pump that changes; In case thereby be connected water pump engagement hydraulic pump with regard to the automatic water pump that engages with oil hydraulic pump; The additive injection system that is connected with hydraulic manifold block; Be used for detecting the device of variation of the characteristic of hydraulic fluid; In case just engage the device of additive injection system automatically with the variation of the characteristic that is used for detecting hydraulic fluid.Another embodiment can be described as a kind of fluid delivery system that is used for fire-fighting vehicle and analog, comprise: hydraulic system, thus the characteristic response that described hydraulic system comprises the hydraulic fluid in the hydraulic system that is connected with hydraulic manifold block is in the joint of oil hydraulic pump and the oil hydraulic pump that changes; In case thereby be connected water pump engagement hydraulic pump with regard to the automatic water pump that engages with oil hydraulic pump; The blast injection system that is connected with hydraulic system; Be used for detecting the device of variation of the characteristic of hydraulic fluid; In case just engage the device of blast injection system automatically with the variation of the characteristic that is used for detecting hydraulic fluid.
Description of drawings
Fig. 1 is a schematic diagram of describing hydraulically powered additive injection system, engages the automatic start-up characteristic that additive injection system just engages automatically in case this system has water pump.
Fig. 2 is the schematic diagram of alternate embodiment with hydraulic driving additive injection system of automatic start-up characteristic.
In case Fig. 3 has the schematic diagram that hydraulic driving additive injection system and hydraulic driving compressed air foam system and water pump engage the automatically actuated system that additive injection system and compressed air foam system just are provided.
In case Fig. 4 has the schematic diagram that the additive injection system that drives by non-hydraulic pressure installation and water pump engage the system of the automatically actuated hydraulic driving compressed air foam system that compressed air foam system just is provided.
Embodiment
Although about disclosing of this is detailed and accurate so that those of ordinary skill can be put into practice the present invention, only illustration the present invention of the embodiment of reality disclosed herein, the present invention can implement with other concrete structure.Although described preferred embodiment, details can be modified and not deviate from the present invention, and the present invention is defined by the claims.
Fig. 1 has described the system 10 of the automatic joint of the foam pump that is used for fire-fighting vehicle or other additive injection system 12.The automatic joint of additive injection system 12 has been simplified operation greatly by the needs of eliminating operator's manual unlocking additive injection system 12 or manual engagement additive injection system 12.
Any suitable Chemicals can be as the additive that is used for system 10.Can have the application of removing as before disclosed, suitable Chemicals about the pollution of bioterrorism behavior.Typically, the liquid foam concentrate is to be ejected into additive in the water for the fire-fighting purpose.Modal commercial available liquid foam concentrate is category-A and category-B liquid foam concentrate.Yet, may use the additive of on-liquid foam concentrate based on the fire-fighting effect.
In described embodiment, additive injection system 12 can adopt the form of hydraulically powered additive pump system.The example of hydraulically powered additive pump system 12 is disclosed in the patent of owning together, i.e. people's such as Juidici U.S.6 is in 684,959 and people's such as Klein U.S.6,725,940.The concrete structure of additive pump system 12 can change and therefore will not go through.
For example thereby the controller 26 of programmable digital control device is kept the ratio of additive to the expectation of water by signal line 28 and additive pump system 12 communications with the speed of regulating the additive pump (not shown).
For example the main fire-fighting fluid of water is supplied with by the watering 30 of for example fire hydrant.Watering 30 links to each other with water pump 32 by common intake line 34 in fire-protection equipment.Water enters mix manifold containing 36 by pipeline 38 from water pump 32.Additive enters mix manifold containing 36 to mix mutually with desired proportion with water by pipeline 40 from additive pump system 12.Water/foam mixture is discharged by discharge conduit 42 then, and this discharge conduit 42 is flexible pipe and nozzle typically.
When engaging water pump 32, system 10 provides additive pump system 12, i.e. the automatic joint of foam delivery system.In the embodiment shown in fig. 1, water pump 32 is connected with oil hydraulic pump 14 (shown in pipeline 43) thereby the automatic engagement hydraulic pump 14 of the joint of water pump 32, and this pump is supplied with fluid dynamic to additive pump system 12.
The joint of oil hydraulic pump 14 causes the rising of hydraulic pressure.When hydraulic pressure surpasses the predetermined set-points of 60psi for example, pressure switch 44 (being located between district 16 and the controller 26 provides in the signal line 46 of communication) or other telltale tripping operation.In the preferred embodiment, pressure switch 44 is to be the electric pressure switch of the GEM Sensors manufacturing of PS 75-20-4MNZ-C-HC-FS60PSIR by model.The use of hydraulic switch 44 provides power is switched to the measurable of system 12, accurate way, and this system 12 is not subjected to the motion of fire-fighting vehicle or the influence of vibration.
When tripping operation, pressure switch 44 sends signal to controller 26 by signal line 46, has enough pressure in this signal indication mechanism 10.In response to the indication of this enough pressure, controller 26 starts additive pump system 12 with the beginning foam delivery.Controller 26 can directly send to the startup of additive injection system 12 with beginning system 12 with actuating signal by signal line 28.Alternatively, controller can send signal to hydraulic manifold block 16 (for example, opening the valve in the manifold region 16) and flow to additive injection system 12 to impel hydraulic fluid from manifold region 16, thus mating system 12 (not shown).
In normal course of operation, hydraulic pressure can continue to rise to and is higher than set point.When system does not work or stops work, hydraulic pressure will descend and reach predetermined set point once more.Therefore, desired pressure switch 44 is suitable for only not sending actuating signal according to detecting the hydraulic pressure that rises when detecting the hydraulic pressure that descends according to the detection of predetermined set-points.
The startup of the hydraulic fluid system that it will be apparent to one skilled in the art that the joint of oil hydraulic pump 14 and cause can cause the variation of other characteristic of the hydraulic fluid of hydraulic fluid flow rate for example or temperature.Therefore, can expect that sensor 44 can respond to the variation of other characteristic except that pressure of hydraulic fluid.
The system 100 that substitutes has been shown among Fig. 2.In the illustrated embodiment, the joint of water pump 32 sends signal to fire-fighting vehicle gearbox power take-off 48 by signal line 50.Gearbox power take-off 48 be connected with oil hydraulic pump 14 (shown in pipeline 52).The joint of oil hydraulic pump 14 causes the rising of hydraulic pressure and makes pressure switch 44 tripping operations, as previously mentioned.
Fig. 3 has described the alternative system 200 with hydraulic driving additive injection system 12 and hydraulic driving compressed air system 54.System 300 provides the automatic joint and the startup of additive injection system 12 and compressed air system 54 when water pump 32 engages.
Similar with aforesaid system 100, the startup of water pump 32 is by gearbox power take-off 48 engagement hydraulic pumps 14.The joint of oil hydraulic pump 14 causes the rising of the pressure of hydraulic fluid.When reaching the pressure of preliminary election, pressure switch 44 tripping operations send signal to controller 26 simultaneously to engage additive injection system 12.
Alternatively, controller 26 can directly send to signal compressed air system 54 to start compressed air system 54 (not shown).
Therefore, in case the startup by water pump 32 and engagement hydraulic system, system 200 just allows the automatic startup of additive injection system 12 and compressed air system 54.
Fig. 4 has described alternative system 300.System 300 provides the additive injection system 12 of hydraulically powered compressed air system 54 and non-hydraulic driving (for example by the swing pinion motor driven).Under many situations, may expect the automatic joint (with the corresponding startup of hydraulic system) of compressed air system 54 is provided when water pump 32 engages and still allow simultaneously additive injection system 12 manually or the startup of alternate manner.
Because additive injection system 12 is not connected with hydraulic manifold block 16, the therefore startup of the hydraulic system of the joint by water pump 32 automatic start additive injection system 12 not.That is to say that additive injection system 12 must be by operator's manual engagement.
Similar with aforesaid system 200, in case pressure switch 44 tripping operations, controller 26 is just opened valve V flowing to start compressed air system 54 with the beginning hydraulic fluid.
Alternatively, controller 26 can directly send to signal compressed air system 54 to start compressed air system 54 (not shown).
Aforementioned only as the explanation of principle of the present invention.In addition, because those of ordinary skills expect multiple modification and change easily, shown in therefore not attempting to limit the invention to and described accurate structure and operation.Although described preferred embodiment, details can be changed and not deviate from the present invention, and the present invention is defined by the claims.
Claims (19)
1. fluid delivery system that is used for fire-fighting vehicle comprises:
Hydraulic system, described hydraulic system comprises the oil hydraulic pump that is connected with hydraulic manifold block, the hydraulic fluid pressure in the described hydraulic system increases in response to the joint of described oil hydraulic pump;
Water pump is connected with described oil hydraulic pump, thereby in case described water pump engages, described oil hydraulic pump just engages automatically;
The additive injection system that is connected with described hydraulic manifold block;
The pressure switch that is connected with described hydraulic system; And
Controller with described pressure switch communication.
2. fluid delivery system according to claim 1,
Wherein said controller and described additive injection system communication.
3. fluid delivery system according to claim 1,
Wherein said controller and described hydraulic manifold block communication.
4. fluid delivery system according to claim 1 further comprises:
The blast injection system that is connected with described hydraulic manifold block.
5. fluid delivery system according to claim 1,
Wherein said pressure switch sends to described controller with the signal of enough system pressures when described hydraulic fluid pressure reaches predetermined set-points.
6. fluid delivery system according to claim 5,
Wherein, in case receive the signal of described enough system pressures, described controller just sends signal to described additive injection system with the described additive injection system of automatic joint.
7. fluid delivery system according to claim 5,
In a single day wherein, only detect the hydraulic fluid pressure of rising, described pressure switch just sends the signal of described enough system pressures.
8. fluid delivery system according to claim 5,
Wherein said predetermined set-points approximately is 60psi.
9. fluid delivery system according to claim 5,
Wherein, in case receive the signal of described enough system pressures, described controller just sends signal to described hydraulic manifold block.
10. fluid delivery system according to claim 9,
Wherein, in case described hydraulic manifold block receives described signal with regard to starter gate valve.
11. fluid delivery system according to claim 10,
Wherein said valve is a solenoid valve.
12. a fluid delivery system that is used for fire-fighting vehicle comprises:
Hydraulic system, described hydraulic system comprises the oil hydraulic pump that is connected with hydraulic manifold block, the hydraulic fluid pressure in the described hydraulic system increases in response to the joint of described oil hydraulic pump;
Water pump is connected with described oil hydraulic pump, thereby in case described water pump engages, described oil hydraulic pump just engages automatically;
The additive injection system that is connected with described hydraulic manifold block;
Be used for detecting the device of the hydraulic fluid pressure of described hydraulic system; And
Be used to work as the device that engages described additive pump system when the hydraulic fluid pressure that is detected surpasses predetermined set point automatically.
13. fluid delivery system according to claim 12 further comprises:
The blast injection system that is connected with described hydraulic manifold block; And
Be used for when the hydraulic fluid pressure of described detection surpasses described predetermined set point, engaging automatically the device of described blast injection system.
14. a fluid delivery system that is used for fire-fighting vehicle comprises:
The additive injection system that is connected with hydraulic pump system;
Be used to detect the device of the joint of described hydraulic pump system; And
In case be used for detecting the just automatic device that engages described additive injection system of joint of described hydraulic pump system.
15. fluid delivery system according to claim 14 further comprises:
The blast injection system that is connected with described hydraulic pump system; And
In case be used for detecting the device of the joint of described hydraulic pump system with regard to the described blast injection of automatic joint system.
16. a fluid delivery system that is used for fire-fighting vehicle comprises:
Hydraulic system, described hydraulic system comprises the oil hydraulic pump that is connected with hydraulic manifold block, the characteristic response of the hydraulic fluid in the described hydraulic system is in the joint of described oil hydraulic pump and change;
Water pump is connected with described oil hydraulic pump, thereby in case described water pump engages, described oil hydraulic pump just engages automatically;
The additive injection system that is connected with described hydraulic manifold block;
Be used for detecting the device of variation of the described characteristic of described hydraulic fluid; And
In case the described variation that is used for detecting the described characteristic of described hydraulic fluid just engages the device of described additive injection system automatically.
17. fluid delivery system according to claim 16 further comprises:
The blast injection system that is connected with described hydraulic pump system; And
In case be used for detecting the device that the described variation of the described characteristic of described hydraulic fluid just engages described blast injection system automatically.
18. a fluid delivery system that is used for fire-fighting vehicle comprises:
Hydraulic system, described hydraulic system comprises the oil hydraulic pump that is connected with hydraulic manifold block, the characteristic response of the hydraulic fluid in the described hydraulic system is in the joint of described oil hydraulic pump and change;
Water pump is connected with described oil hydraulic pump, thereby in case described water pump engages, described oil hydraulic pump just engages automatically;
The blast injection system that is connected with described hydraulic system;
Be used for detecting the device of variation of the described characteristic of described hydraulic fluid; And
In case be used for detecting the device that the described variation of the described characteristic of described hydraulic fluid just engages described blast injection system automatically.
19. fluid delivery system according to claim 18 further comprises:
Additive injection system.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67636605P | 2005-04-29 | 2005-04-29 | |
| US60/676,366 | 2005-04-29 | ||
| US11/195,163 | 2005-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101415943A true CN101415943A (en) | 2009-04-22 |
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ID=40595616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800147480A Pending CN101415943A (en) | 2005-04-29 | 2006-04-13 | Automatic start additive injection system for fire fighting vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101415943A (en) |
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2006
- 2006-04-13 CN CNA2006800147480A patent/CN101415943A/en active Pending
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Open date: 20090422 |