WO2013086945A1 - Multi-functional fire-fighting combined injection unit, multi-functional fire-fighting combined device and fire engine - Google Patents

Abstract

A multi-functional fire-fighting combined injection unit comprises an injector and a mixer (302). The mixer (302) is provided with a main fire-fighting agent inlet, a mixed fire-fighting agent inlet, a mixer gas inlet for receiving compressed air and a mixer outlet in communication with the injector. The multi-functional fire-fighting combined device of the present invention comprises the multi-functional fire-fighting combined injection unit. The main fire-fighting agent inlet of the mixer is selectively in communication with a dry powder output port for outputting fluidized dry powder or an outlet of a concrete pump; the mixed fire-fighting agent inlet is selectively in communication with a foaming agent box (8) or a concrete additive box; and the mixer gas inlet is connected with a corresponding compressed air source. Additionally, the present invention also provides a multi-functional fire engine comprising the multi-functional fire-fighting combined device. According to the present invention, the injection of various fire-fighting media, such as a water foaming mixing agent, dry powder, and concrete can be realized through the whole set of the multi-functional fire-fighting combined device, and thus the practicability is wider, and the fire-fighting performance is better.

Description

 Multifunctional fire-fighting combined spray unit, multifunctional fire-fighting combined device and fire truck

 The present invention relates to a fire-fighting spray device, and more particularly to a multi-functional fire-fighting combined spray unit that can be used to spray a variety of fire-fighting media such as water foam mixes, dry powders, and concrete. Furthermore, the present invention relates to a multifunctional fire fighting combination device including the multifunctional fire fighting combined spray unit and a multifunctional fire engine. Background technique

 Extinguishing fire extinguishing media is widely used in the field of fire protection, such as water foaming agents (also known in the art as water (foam), which is mainly a mixture of water and foam fire extinguishing agent), dry powder (ie dry powder fire extinguishing agent). ) Wait.

 Dry powder is a dry and easy-flowing fine powder used for fire extinguishing. When it is extinguished, the powder sprayed under the action of pressurized gas is mixed with the flame to form a physical and chemical reaction. Specifically, the inorganic powder in the dry powder The volatile decomposition product of the salt chemically inhibits and de-catalyzes the free radicals or reactive groups generated by the fuel during the combustion process, so that the combustion chain reaction is interrupted and extinguishes the fire; the second is that the powder of the dry powder falls outside the surface of the combustible material. A chemical reaction takes place and a layer of glassy coating is formed under high temperature to isolate oxygen and thereby suffocate the fire.

 Foam fire extinguishing agent is also an effective fire extinguishing agent for fighting flammable and flammable liquids. It mainly produces a cohesive foam floating layer on the surface of the liquid, which acts as a suffocation and cooling. Foam fire extinguishing agents are classified into chemical foams, air foams, fluoroprotein foams, aqueous film-forming foams and anti-solvent foams. In the field of fire protection, the foam fire extinguishing agent is mainly mixed with water in a mixer (typically, for example, a proportional mixer) and then fired through an ejector.

 Due to the high risk of fires in petrochemical enterprises and reservoir areas, when solving large-area, ultra-high-power solid deep fires in solid material storage places, the use of fluid fire extinguishing agents is low, the fire extinguishing time is long, the fire loss is large, and the fire spreads. The rapid problem and the large-scale area caused by the explosion and explosion accidents in the large petrochemical liquid storage tank area, the world-wide problem that the super-powerful rogue fire is difficult to extinguish. According to the tactical principle of "control first, then eliminate", special multi-function fire engines are becoming a new hot spot for the needs of modern fire protection systems.

 The current multi-functional fire trucks, such as the Steyr King MX5250TXFGP100S multi-function fire truck, use two kinds of fire extinguishing media, dry powder and water foam mixture, to extinguish the fire. The main ones are chassis, dry powder tank, nitrogen tank, dry powder gun, water tank and foam tank. , fire pump, foam metering pump, fire water cannon and other components.

When the dry powder is extinguished, open the nitrogen tank, supply the gas to the dry powder tank through the pressure reducer valve and the intake manifold assembly, and fluidize dry. The dry powder in the powder tank, and the dry powder is transported to the dry powder gun. The dry powder gun is turned on according to the fire source. The dry powder-nitrogen two-phase fluid is sprayed under the pressure and sprayed to the fire source to extinguish the fire. When the water foam mixture is extinguished, the fire pump, the foam metering pump, the water and foam proportional mixer, the pipeline to the fire water cannon, the fire water cannon are turned on to the fire source, and the water foam mixture is sprayed under the pressure. Spray to the fire source to extinguish the fire.

 In the prior art multi-purpose fire truck, the dry powder and water foam mixture are sprayed by two separate systems. The function of the existing multi-function fire truck is mainly embodied in the word "destroy". For the super-large fire field, it is necessary to "control first, then eliminate", that is, to build a dike to block flow, diversion, and then cover the fire, which often appears to function. Insufficient, it is impossible to separate and contain the fire at the same time as the fire extinguishing, so as to cover the fire. At the same time, the multi-function fire truck has a limited amount of dry powder and nitrogen, and cannot be refilled on site. For a large fire field, it is often impossible to solve the fire at one time. It is necessary to use a long-distance round-trip feeding to extinguish the fire, and the operation efficiency is not high.

 In view of this, there is a need to design a new type of multifunctional fire fighting assembly that overcomes or mitigates one or all of the above-discussed deficiencies of the prior art. On this basis, a new type of multi-functional fire truck is formed. Summary of the invention

 The first problem to be solved by the present invention is to provide a multifunctional fire-fighting combined spray unit which can be used for mixing of a water foam mixture and mixing of concrete and concrete additives, thereby being capable of being used for spray water foam mixing. Spraying of various fire-fighting media such as agents, concrete and dry powder.

 A further technical problem to be solved by the present invention is to provide a multifunctional fire-fighting combination device capable of realizing injection of a water foam mixture, dry powder and concrete, thereby being selectively adoptable by the multifunctional fire-fighting combination device The corresponding fire-fighting medium is used to extinguish the fire, and in particular, the fire can be cut and sealed by the sprayed concrete.

 On the basis of this, the technical problem to be further solved by the present invention is to provide a multifunctional fire fighting vehicle, which can realize the spraying of water foam mixture, dry powder and concrete, thereby enabling selective The ground is fired with the corresponding fire-fighting medium, especially for the fire field to be cut by the sprayed concrete.

 In order to solve the above technical problem, the present invention provides a multifunctional fire-fighting combined spray unit including an ejector, wherein the multifunctional fire-fighting medium spray unit further includes a mixer having a main fire extinguishing agent inlet and a mixed fire extinguishing agent inlet a mixer inlet for receiving compressed air, and a mixer outlet in communication with the injector.

Based on this, the present invention provides a multifunctional fire fighting assembly comprising a foaming agent tank, a dry powder storage device and at least one compressed air source, the dry powder in the dry powder storage device passing through the compressed air of the compressed air source Fluidizing and outputting through a dry powder output port, wherein the multifunctional fire fighting combination device further comprises a concrete additive tank, a pumping device driven by the power device to pump water or concrete, and the multifunctional fire fighting combination described in the above technical solution a spray unit having a main fire extinguishing agent inlet selectively in communication with the dry powder outlet or an outlet of the pumping device, the mixed fire extinguishing agent inlet selectively communicating with the foam tank or concrete additive tank The mixer inlet is coupled to a respective source of compressed air in the source of compressed air.

 In the technical solution of the multifunctional fire-fighting combination device of the present invention, specifically, the multifunctional fire-fighting combination device further includes a metering pump and a spiral pneumatic conveying device, wherein the at least one compressed air source is an air compressor, and the pumping device a concrete pump; the spiral pneumatic conveyor has a dry powder input port for receiving dry powder in the dry powder storage device, the dry powder output port, and dry powder for outputting the dry powder output port to blow compressed air for fluidization a fluidized air inlet, wherein the dry powder conveying section of the spiral pneumatic conveying machine is provided with a rotatable spiral blade; the outlet of the concrete pump, the dry powder output port and the main fire extinguishing agent inlet are respectively connected by a pipe a line switching device for selectively connecting the main fire extinguishing agent inlet to the outlet of the concrete pump or the dry powder output port; the mixed fire extinguishing agent inlet is respectively connected to the pipe through a metering pump and a three-way switching valve The foam tank and the concrete additive tank, the compressed air outlet of the air compressor is divided by the pipeline in the air pipeline assembly A mixer connected to said inlet port and said fluidizing gas inlet; the metering pump, a screw conveyor and the pneumatic air compressor driven by said power means.

 In the technical solution of the multifunctional fire-fighting combination device of the present invention, specifically, the pipeline switching device is a two-position three-way reversing valve, and the concrete pump outlet is connected to the two-position three-way via a fluid conveying pipe assembly. An interface of the reversing valve, the dry powder output port is connected to another interface of the two-position three-way reversing valve via a fluidized dry powder conveying pipe assembly, and the main fire extinguishing agent inlet is connected through the main fire extinguishing agent conveying pipe assembly The third interface of the two-position three-way reversing valve.

 In the technical solution of the multifunctional fire fighting assembly of the present invention, preferably, the inner diameter of the dry powder conveying section of the spiral pneumatic conveying machine is formed to be reduced toward the dry powder output port such that the housing of the dry powder conveying section is at least partially The tapered blade, and/or the spiral blade is a variable pitch spiral blade capable of causing the dry powder to be transported at a faster speed and then slower during the conveying of the dry powder conveying section.

 In the technical solution of the multifunctional fire-fighting combination device of the present invention, preferably, the top of the dry powder storage device is provided with a plurality of dry powder feed ports, and at least one of the plurality of dry powder feed ports is suitable for pneumatic powder filling The pneumatic filling inlet of the pipeline, the top of the dry powder storage device is further provided with a filter that is open to the outside atmosphere.

In the technical solution of the multifunctional fire-fighting combination device of the present invention, preferably, the dry powder storage device comprises a dry powder storage bin, a dry powder feed port for adding dry powder to the dry powder storage bin, and a spiral conveying with a dry powder discharge port. The screw conveyor is disposed at the bottom of the dry powder storage bin to receive the dry powder in the dry powder storage bin, and the dry powder discharge port of the screw conveyor is connected to the dry powder input port of the spiral pneumatic conveying machine. The screw conveyor is driven by the power unit.

 In the technical solution of the multifunctional fire fighting assembly of the present invention, it is further preferred that the inner wall surface of the dry powder storage bin has a slope so that the dry powder slides to the screw conveyor.

 In the technical solution of the multifunctional fire fighting assembly of the present invention, more preferably, the lower portion of the dry powder storage compartment is formed as a V-shaped portion, and the screw conveyor is respectively mounted at the bottom of the V-shaped portion.

 In the technical solution of the multifunctional fire fighting assembly of the present invention, preferably, the multifunctional fire fighting assembly further includes an injection robot including a turntable that can be driven to rotate, a folding boom mounted on the turntable, and A nozzle attachment mechanism mounted at an end of the final stage of the folding boom, the injector and the mixer being mounted on the nozzle attachment mechanism, the turntable being driven by the power unit.

 In the technical solution of the multifunctional fire-fighting combination device of the present invention, specifically, the power device includes a common device for driving the concrete pump, the metering pump, the spiral pneumatic conveyor, the air compressor, the screw conveyor, and the turntable. Driving a motor that drives the concrete pump, the metering pump, the screw pneumatic conveyor, the air compressor, the screw conveyor, and the turntable via a corresponding output shaft of the transfer case, the concrete pump, the metering pump, the spiral pneumatic conveyor, The respective power input ends of the air compressor, the screw conveyor and the turntable are respectively provided with clutches; or the power device includes correspondingly driving the concrete pump, the metering pump, the screw pneumatic conveying machine, the air compressor, the screw conveyor, and The drive engine of the turntable, each of the drive engines correspondingly drives the concrete pump, the metering pump, the spiral pneumatic conveyor, the air compressor, the screw conveyor, and the turntable via corresponding deceleration devices.

 In the technical solution of the multifunctional fire-fighting combination device of the present invention, preferably, the concrete pump, the metering pump, the spiral pneumatic conveying machine, the air compressor, the screw conveyor and the turntable are respectively a hydraulic concrete pump and a hydraulic metering a pump, a hydraulic spiral pneumatic conveyor, a hydraulic air compressor, a hydraulic screw conveyor and a hydraulic rotary table, the multifunctional fire fighting device further comprising a hydraulic control system, the hydraulic control system including a hydraulic motor that drives a metering pump, a screw pneumatic conveyor, an air compressor, a screw conveyor, and a turret, and a driving hydraulic pump that supplies hydraulic oil to each of the hydraulic motor and the hydraulic cylinder of the concrete pump, the power device An output shaft is coupled to the input shaft of the drive hydraulic pump to drive the drive hydraulic pump to operate the pump oil.

 On the basis of the technical solution of the above-mentioned multifunctional fire-fighting combination device, the present invention further provides a multifunctional fire-fighting vehicle, wherein the multifunctional fire-fighting vehicle is equipped with the multifunctional fire-fighting device according to any one of the above technical solutions of the present invention. Combination device.

In the technical solution of the multifunctional fire truck of the present invention, preferably, the power device includes the multifunctional cancellation A motor-resistant engine that outputs power via a corresponding output shaft of a power take-off device mounted on a gearbox of the multi-function fire truck.

 In the technical solution of the multifunctional fire truck of the present invention, it is further preferred that the multifunctional fire fighting combined device further comprises a hydraulic control system, the hydraulic control system includes a driving hydraulic pump for supplying hydraulic oil, and the power splitting A respective output shaft of the device is coupled to the input shaft of the drive hydraulic pump to drive the drive hydraulic pump to operate the pump oil to provide power.

 In the technical solution of the multifunctional fire truck of the present invention, optionally, the power device includes a shared drive engine that is powered via a respective output shaft of the transfer case; or the power device includes a plurality of powers for separately providing power Drive the engine.

 Optionally, the multifunctional fire fighting combination device includes a hydraulic control system, the hydraulic control system further includes a driving hydraulic pump for supplying hydraulic oil, and an output shaft of the power device is coupled to an input shaft of the driving hydraulic pump, Power is supplied by driving the drive hydraulic pump to operate the pump oil.

 According to the above technical solution, the multifunctional fire fighting combined device and the multifunctional fire fighting vehicle of the same according to the present invention can selectively perform water foam mixing agent through a complete set of multifunctional fire fighting combined devices as needed, Dry powder or concrete fire-fighting, which increases the fire-extinguishing medium and fire-extinguishing function, thus achieving multi-functional fire extinguishing, with conventional fire-fighting function and concrete special fire-fighting function. When dealing with large fires, it can use the sprayed concrete to divide the fire field. Blocking and covering the fire extinguishing, which is more practical and more efficient in extinguishing fire. Further, the present invention can realize continuous injection fire extinguishing by using a more optimized structure in the case of a fire-fighting medium transport vehicle, in particular, ingeniously providing fluidized compressed air through a spiral pneumatic conveyor and using an air compressor, and passing dry powder. The specific cooperation structure of the storage device realizes continuous jet fire extinguishing of dry powder. The multifunctional fire-fighting combined device of the invention and the multifunctional fire-fighting vehicle thereof are realized in a plurality of parts, and the structure is compact and compact, and has excellent fire extinguishing performance.

 Other features and advantages of the invention will be described in detail in the detailed description which follows. DRAWINGS

 The following drawings are provided to provide a further understanding of the present invention, and are a part of the specification, which is used to explain the invention together with the specific embodiments described below, but the scope of the invention is not limited to the following drawings and embodiments. the way. In the drawing:

 1 and 2 are respectively a front view and a top plan view of a multi-function fire truck according to an embodiment of the present invention, showing the main structure of the multi-function fire fighting assembly of the present invention.

Figure 3 is a multi-functional fire-fighting combination device of the present invention and a jet robot used in the multi-function fire truck Schematic.

 Fig. 4 is a view schematically showing the dry powder storage device, the foaming agent tank and the concrete additive tank of the present invention, in which a cut-away display form is partially used to clearly show the internal structure of the dry powder storage device.

 Fig. 5 schematically shows a preferred construction of the dry powder storage device of the present invention.

 Fig. 6 is a schematic view showing the structure of a spiral pneumatic conveying machine according to an embodiment of the present invention, in which a cutaway display form is employed for displaying the spiral blades.

 Description of the reference signs:

 1 chassis; 2 subframes;

 3 jet robot; 4 air compressor;

 5 force transfer device; 6 spiral pneumatic conveyor;

 7 dry powder storage device; 8 foaming agent box;

 9 concrete additive tank; 10 legs;

 11 concrete pump; 12 fluid delivery pipe assembly;

 13 three-way reversing valve; 14 air conveying pipe assembly;

 15 pipeline switching device; 16 metering pump;

 17 main fire extinguishing agent delivery pipe assembly; 18 hydraulic control system;

 19 dry powder input port; 20 dry powder output port;

 21 fluidized air inlet; 22 spiral blades;

 23 fluidized dry powder delivery pipe; 301 nozzle;

 302 mixer; 303 nozzle connection mechanism;

 304 turntable; 305 folding boom;

 701 pneumatic filling inlet; 702 dry powder feeding port;

 703 screw conveyor; 704 filter;

 705 dry powder storage bin; 706 dry powder discharge port. detailed description

 The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. .

First of all, it should be noted that although FIG. 1 and FIG. 2 of the present invention show the multifunctional fire fighting combined device of the present invention. Installed on a fire truck to form a multi-function fire truck, but it should be clear to those skilled in the art that the main technical idea of the present invention is to provide a multi-function fire-fighting combination device having multiple fire-fighting medium spray functions, which is multifunctional The fire-fighting combination device can be independently existed to constitute a separate product fire-fighting equipment, which is not limited to being applied to a fire-fighting vehicle, and can be applied to various occasions according to application requirements, for example, in some docks and warehouses that are prone to fire, The multifunctional fire-fighting combination device of the present invention is fixedly mounted on a fire-fighting platform having a predetermined height to form a fire-fighting coverage area for a predetermined area around the fire-fighting platform in the event of a fire. In addition, it should be additionally noted that the name "multi-functional fire-fighting combination device" of the present invention does not mean that the multi-functional fire-fighting combination device simultaneously sprays or alternately sprays three kinds of fire-extinguishing media during use, but refers to the present invention. The multi-functional fire-fighting combination has the function of spraying water foam mixture, dry powder or concrete, which realizes the so-called "one system multi-function". In fact, in the actual use of the multifunctional fire-fighting combination device of the present invention, a fire-extinguishing medium is generally used for the fire-fighting.

 Therefore, the basic embodiment of the multi-functional fire-fighting combined spray unit, the multi-functional fire-fighting combination device of the present invention, and the corresponding preferred modes and simple variants thereof will be described first with reference to FIGS. 1 to 6 , and the present invention will be described in the description during the description. Each component device or component. Based on this, the multi-functional fire-fighting combination device of the present invention is further applied to a fire truck to form a specific embodiment of the multi-function fire truck. It should be noted that in the following description, the known technical components involved in the related components, the specific connection of the power device, the specific composition of the hydraulic control system, and the like are only briefly introduced to the present invention. Some preferred structures or special structures will be described in detail. In order to prevent the misunderstanding from causing difficulty in understanding the technical solution, it should be pointed out before the description that the concrete conveyed by the hydraulic transfer pump 11 in the multifunctional fire-fighting combination device of the present invention refers to a concrete form (liquid or liquid-like) which has not yet solidified. .

 Referring to FIG. 3, the multifunctional fire-fighting combined spray unit of the present invention includes an injector (for example, a nozzle), wherein the multifunctional fire-fighting medium spray unit further includes a mixer 302 having a main fire extinguishing agent inlet and a mixed fire extinguishing a reagent inlet, a mixer inlet for receiving compressed air, and a mixer outlet in communication with the injector.

On the basis of this, the multifunctional fire fighting combined device of the basic technical concept of the present invention comprises the above-mentioned multifunctional fire fighting combined spraying unit, foaming agent tank 8, dry powder storage device 7 and at least one compressed air source, and the dry powder in the dry powder storage device 7 The compressed air of the compressed air source is fluidized and output via the dry powder output port 20, wherein the multifunctional fire fighting assembly further includes a concrete additive tank 9, a pumping device driven by the power unit to pump water or concrete ( Typically a concrete pump 11), the main fire extinguishing agent inlet of the mixer 302 is selectively in communication with the dry powder outlet 20 or the outlet of the pumping device, the mixed fire extinguishing agent inlet selectively with the foam Agent box 8 Or the concrete additive tank 9 is in communication, the mixer inlet being connected to a respective source of compressed air in the source of compressed air.

 Within the scope of the above basic technical concept, the multifunctional fire-fighting combination device of the present invention can have various specific implementation forms. A specific basic implementation form will be described below with reference to FIGS. 1 to 6, but it will be apparent to those skilled in the art. The present invention is not limited to the specific form shown in FIGS. 1 to 6, for example, the dry powder output port 20 involved in the above basic technical solution is provided in the preferred embodiment having the screw conveyor 6 described below. On the screw conveyor 6, but it can also be formed directly on the dry powder storage device 7 as in the prior art, which can also achieve the purpose of the invention for spraying three fire-fighting media. The purpose of setting the spiral pneumatic conveyor 6 is to establish The purpose of adding dry powder under normal pressure. Further, there are various forms of variations regarding the piping arrangement, the valve arrangement, and the connection of the pumping device (a concrete pump, etc.), but as long as they fall within the scope of the above basic technical concept, they are all within the scope of the present invention.

 1 and 2, the multifunctional fire-fighting combination device of the present invention includes the above-described multifunctional fire-fighting combined spray unit (ie, including a mixer 302 and an ejector), a foaming agent tank 8, a dry powder storage device 7, a pumping device, The concrete additive tank 9, the metering pump 16 and the spiral pneumatic conveyor 6, the at least one compressed air source is specifically an air compressor 4 (ie, an air compressor), and the pumping device may specifically be a concrete pump 11, which of course does not exclude Other similar pumping devices that pump concrete and water.

 Among the above-described constituent devices or components of the multifunctional fire fighting assembly of the present invention, injectors are commonly used in the field of fire protection, such as spray guns and spray guns. Referring to Figures 1 and 3, the ejector can simply employ the nozzle 301, in which case the spray calibre of the nozzle 301 needs to be slightly larger to prevent clogging when the concrete is shot.

 The mixer is a device employed in the field of fire protection. Unlike the prior art, the mixer 302 of the present invention has a specific interface, that is, a mixer outlet in communication with the injector for receiving concrete, water or fluidization. The main fire-extinguishing agent inlet for dry powder, the mixed fire-extinguishing agent inlet for receiving foam fire extinguishing agents or concrete additives, and the mixer inlet for introducing compressed air. In addition, as long as it can achieve the mixing of the corresponding fire-fighting medium (such as water and foam fire extinguishing agent or concrete and quick-setting agent). In order to enhance the mixing effect, the mixing chamber of the mixer 302 can employ a proportional mixer principle widely used in the field of fire protection. In addition, the mixing chamber of the mixer 302 and the corresponding interface need to be sufficient to transport the concrete in size and shape, as long as no blockage is formed.

Referring to Fig. 4, the foam tank 8 belongs to a storage tank of a foam fire extinguishing agent commonly used in the field of fire protection, and is mainly used for storing a foam fire extinguishing agent in a fluid form in the present invention. The concrete additive tank 9 is mainly used for storing a fluid additive (ie, a liquid or liquid-like liquid additive). In the present invention, in order to enhance the fire extinguishing effect, a concrete quick-setting agent is mainly used, and the main component thereof is an aluminum-oxygen clinker (ie, Clinker made from bauxite, soda ash, and quicklime Made by grinding. The main role of the accelerator is to accelerate the hydration and hardening of the cement in the concrete. Of course, the concrete additive tank 9 of the present invention is not limited to accommodating a quick-setting admixture, and may contain other additives for concrete as needed to improve the jetting performance of the concrete as needed. In addition, the dry powder storage device 7 is mainly used for storing dry powder and smoothly allowing the stored dry powder to enter the spiral pneumatic conveyor 6 described below. In the basic technical solution of the present invention, the dry powder storage device 7 is arranged to enable the dry powder to slide or fall to The dry powder inlet 19 of the spiral pneumatic conveyor 6 may be, of course, the dry powder storage device 7 of the present invention has a more preferred structure for achieving continuous delivery of dry powder, which will be described in the following preferred embodiments.

 Further, the concrete pump 11 is a pump widely used in the field of concrete transportation, which can be used for pumping concrete and, of course, for pumping water. The concrete pump 11 mainly has a motor-driven concrete pump, an internal combustion engine driven concrete pump, and a hydraulic concrete pump (ie, a hydraulically driven concrete pump). Among them, a piston type concrete pump which is widely used, and a power driving structure of the concrete pump 11 are known. The ground is only briefly described in the description of the power unit below. The concrete pump 11 of the present invention is mainly used for conveying concrete in water or fluid form, as long as sufficient conveying power and output displacement are ensured, in order to facilitate the addition of the fire fighting medium, the inlet of the concrete pump 11 is provided with a receiving hopper for convenient reception. Fluid concrete or water. The metering pump 16 is a metering pumping system widely used in the hydraulic field, and generally includes a pump, a measuring sensor, a speed regulating device for adjusting the speed of the pump, and the like, and the displacement can be stepless in the range of 0-100%. Adjusted to accurately output the required volume of fluid, usually requiring a metering pump with a stability accuracy of no more than ± 3%. In the present invention, since the concrete conveyed by the concrete pump 11 needs to be mixed with a predetermined ratio of the quick-setting admixture, or the water conveyed by the concrete pump 11 needs to be mixed with a predetermined proportion of the foam fire extinguishing agent (that is, the mixing ratio of the concrete and the quick-setting admixture, and The mixing ratio of water mixed with the foam fire extinguishing agent is preset), in which case the measuring sensor measures the pumping displacement or flow rate of the concrete pump 11, and according to the displacement of the concrete pump 11 (the displacement represents the unit) The volume of water or concrete output or the change in flow rate is adjusted by the governor to adjust the rotational speed of the pump in the metering pump 16, so that the metering pump 16 outputs a corresponding displacement of the foam fire extinguishing agent or accelerator (ie, unit time) A predetermined volume of foam fire extinguishing agent or accelerator is outputted so that the predetermined mixing ratio remains unchanged. In addition, the air compressor (ie, air compressor) 4 is also a commonly used air compression device, and will not be described again.

The spiral pneumatic conveyor 6 has a dry powder input port 19 for receiving dry powder in the dry powder storage device 7, a dry powder output port 20, and a fluidized intake air for blowing the compressed air output from the dry powder output port for fluidization. The port 21, the dry powder conveying section of the spiral pneumatic conveyor 6, is provided with a rotatable spiral blade 22. Specifically, the main structure of the spiral pneumatic conveyor 6 of the present invention is similar to the conventional screw conveyor, but is not identical. Referring to FIG. 6, the spiral pneumatic conveyor 6 has a dry powder input port as described above. 19. The dry powder output port 20 and the fluidizing air inlet 21, and the dry powder conveying section of the spiral pneumatic conveying machine 6 is provided with a spiral blade capable of being driven to rotate The sheet 22, wherein the dry powder input port 19 of the spiral pneumatic conveyor 6 receives the dry powder in the dry powder storage device 7 (for example, in the preferred configuration described below, it is connected to the dry powder discharge port 706 of the screw conveyor 703 of the dry powder storage device 7 ). Referring to Figures 6 and 2, the fluidizing air inlet 21 and the compressed air outlet of the air compressor 4 are connected by a pipe in the air line assembly 14, which is mainly used for the spiral pneumatic conveying machine 6 The output dry powder is fluidized (ie, formed into a powdery aerosol state for ejection), and a pressure difference is established in the spiral pneumatic conveyor 6, and the dry powder enters from the dry powder input port 19 (ie, atmospheric pressure or slightly higher than atmospheric pressure). The dry powder in the state enters, through the spiral conveying, the material seal is established, a pressure difference is formed between the dry powder input port 19 and the dry powder output port 20, and the dry powder is fluidized to form a dry powder-air two phase when the dry powder is output through the dry powder output port 20. The fluid (ie, fluidized dry powder) is output to form a dry powder-air two-phase fluid having a suitable injection pressure, and is sent to the fluidized dry powder delivery pipe 23 via compressed air, and is switched via the line switching device 15 to be transported through the main medium. The tube assembly 17 and the mixer 302 are sent to the nozzle 301 for ejection. In order to establish a better material seal during the conveying of the dry powder in the dry powder conveying section of the spiral pneumatic conveying machine 6, the inner diameter of the dry powder conveying section of the spiral pneumatic conveying machine 6 is formed to be reduced toward the dry powder output port 20 so that The casing of the dry powder conveying section is at least partially tapered, and the spiral blade 22 may also be shaped into a variable pitch spiral blade capable of causing the dry powder to be transported at a fast speed and then slow during the conveying of the dry powder conveying section (typically The pitch of the spiral blade 22 may be large in the front portion of the conveying, and the rear portion in the conveying is small, so that the distance advanced by the spiral blade 22 in the conveying front portion is large, and the dry powder conveying speed is faster), of course, the above two means can be comprehensively utilized. Further, other technical measures are also conceivable by those skilled in the art, so that the conveying speed of the dry powder in the dry powder conveying section of the spiral pneumatic conveying machine 6 is fast and slow, so that the dry powders are mutually squeezed to form an effective seal. It is also possible to prevent the compressed air entering the fluidizing air inlet 21 from entering the dry powder storage device via the screw air conveyor 6. Inside. The dry powder output port 20 is connected to the line switching device 15 via a fluidized dry powder delivery pipe 23. In the specific construction of the spiral pneumatic conveyor 6, it will be apparent to those skilled in the art of pneumatic conveying that the compressed air flow introduced through the fluidizing inlet 21 can generally be placed in the lower portion of the dry powder outlet 20 such that once the dry powder reaches the helix The dry powder output port 20 of the pneumatic conveyor 6 can be fluidized immediately. Obviously, the compressed air entering through the fluidizing inlet 21 needs to be directed to be sprayed toward the fluidized dry powder delivery pipe 23 via the dry powder output port 20, which is fluidized by the compressed air into a dry powder-air two-phase fluid during the conveying process. The fluidization of the dry powder is easily achieved by providing the shape and position of the fluidized gas inlet 21, and the flow of the rapidly injected compressed air can also exert a drainage effect on the dry powder at the dry powder output port 20, specifically, high pressure air. The rapid flow creates a negative pressure drainage in the vicinity, so that the dry powder follows the flow of compressed air from the dry powder outlet 20 via the fluidized dry powder delivery pipe 23 to the line switching device 15, and is fully fluidized into a dry powder by the compressed air during the conveying process. An air two-phase fluid, of course, the arrangement and position of the fluidizing air inlet 21 can be changed according to the situation, as long as fluidization, drainage and formation are sufficient The pressure fluid can be shot. Although it will be apparent to those skilled in the art, in the multi-functional fire-fighting combination device of the present invention, since pneumatic conveying and aerodynamic fluidization are involved, and the dry powder also has a certain pollution to the external environment, The sealing of the entire multifunctional fire-fighting combination with the external environment requires attention.

 In the above basic technical solution, the mixed fire extinguishing agent inlet of the mixer 302 is connected to the foaming agent tank 8 and the concrete additive tank 9 via a metering pump 16 and a three-way switching valve 13 respectively, specifically, the mixer 302 The mixed fire extinguishing agent inlet is connected to the foaming agent tank 8 and the concrete additive tank 9 via a metering pump 16 and a three-way switching valve 13 through a mixed fire extinguishing agent delivery pipe assembly (not shown), which is apparent to those skilled in the art. The mixed fire extinguishing agent inlet is connected to the outlet of the metering pump 16 through a pipe, the inlet of the metering pump 16 is connected to a working port of the three-way switching valve 13 through a pipe, and the foaming agent tank 8 and the concrete additive tank 9 are each passed through a pipe. Connected to the other two ports of the three-way reversing valve 13, the three-way reversing valve 13 is well known to those skilled in the hydraulic arts, and has three interfaces through which the three-way reversing valve 13 is exchanged. The inlet of the metering pump 16 can be selectively communicated with the foam tank 8 or the concrete additive tank 9, which can take a variety of forms For example, an electrically-controlled two-way valve, three-way valve and the like.

 The compressed air outlet of the air compressor 4 is connected to the mixer inlet and the fluidization inlet 21 through pipes in the air line assembly 14, respectively, mainly for output through the air compressor 4. Compressed air fluidized dry powder or fluidized concrete. Obviously, since the present invention has the ejection function of three fire-fighting media, the three functions are not used at the same time, in order to avoid waste of compressed air, for example, when using concrete jet, it is not necessary to flow into the spiral pneumatic conveyor 6. The air port 21 supplies compressed air, and therefore, the air line assembly 14 further includes a control valve for controlling supply of air to the fluidizing air inlet 21 and the mixer air inlet, the control valve The arrangement can be varied, for example, the switching valve is separately provided on the air duct leading to the fluidizing air inlet 21 and the air duct leading to the air inlet of the mixer (for example, an electronically controlled switching valve, an electronically controlled second) The two-way valve, etc., can selectively supply air to the fluidizing inlet 21 or the mixer inlet by controlling the two switching valves, or simultaneously supply air. Of course, for those skilled in the art, the specific arrangement of the control valve is various and will not be described again.

The outlet of the concrete pump 11, the dry powder outlet 20 and the main fire extinguishing agent inlet are respectively connected by pipes to the outlet of the concrete pump 11 or the dry powder output selectively for the main fire extinguishing agent inlet A line switching device 15 in which the port 20 is connected. The pipe switching device for realizing the above-described pipe switching function can be various, for example, the pipe switching device disclosed in Chinese Patent Application No. CN201010613369. In a simplest manner, the pipeline switching device 15 can be a three-way elbow having three interfaces, wherein the two interfaces are respectively provided with a shutter, and the outlet of the concrete pump 11 and the dry powder output port 20 respectively pass through the pipeline. Connected to the two ports with the ram, the main fire-extinguishing agent inlet of the mixer 302 is connected to the other interface through the pipe, so as to be selectively controlled The two shutters function to selectively connect the main fire extinguishing agent inlet to the outlet of the concrete pump 11 or the dry powder outlet 20. Alternatively, the line switching device 15 may be a two-position three-way reversing valve, which may be a manual two-position three-way reversing valve or a power-driven two-position three-way reversing valve (generally electric or hydraulically driven) . For example, in the case of a hydraulically driven two-position three-way reversing valve, typically, a two-position three-way reversing valve used in the field of concrete pumping generally has an in-position sensor (ie, a position sensor) so that the two-position three After the switching valve is switched into position, a corresponding signal is output to the corresponding control unit, and the control unit controls the hydraulic drive system to stop supplying oil to stop driving the hydraulically driven 2/2-way reversing valve to reverse. Specifically, the outlet of the concrete pump 11 is connected to one interface of the electric two-way three-way reversing valve via the fluid delivery pipe assembly 12, and the dry powder output port 20 is connected to the electric two-position three-way via the fluidized dry powder conveying pipe 23. The other interface of the reversing valve, the main fire extinguishing agent inlet is connected to the third interface of the electric 2/2-way reversing valve through the main fire extinguishing agent delivery pipe assembly 17, of course, due to the electric 2/2-way reversing valve It is necessary to pass the fluid concrete and the dry powder, and the internal communication passages in the two reversing positions can be formed into a streamline shape to reduce the resistance of the dry powder or concrete passage, and the corresponding valve interface diameter needs to be larger, driving the spool to move. The driving force of the electromagnet or motor should be large enough to overcome the resistance of the movement of the spool and not to be stuck. In addition, in order to ensure the use of the electric 2/2-way reversing valve should be cleaned regularly.

 Further, in the above basic technical solution, the concrete pump 11, the metering pump 16, the screw pneumatic conveyor 6, and the air compressor 4 are driven by the power unit. The multifunctional fire-fighting combination device of the present invention can be powered by its own independent power device, and in the case of being installed on a fire truck, the power provided by the engine of the fire-fighting vehicle can also be borrowed. The specific power arrangement can be varied for those skilled in the art, which will be briefly described below.

 The above technical solutions constitute a preferred specific technical solution embodying the main technical idea of the present invention, and those skilled in the art include various possible optimized structural forms, preferred arrangements and simple forms within the scope of the technical solutions. Modifications are briefly described below.

 Preferably, the top of the dry powder storage device 3 is provided with a plurality of the dry powder feed ports 702. In general, the dry powder feed port 702 is provided to ensure that the multifunctional fire-fighting combination device of the present invention is continuous during the spraying process. Feeding, the dry powder is continuously added through the dry powder feed port 702 in various forms to meet the needs of spraying, but in order to add the dry powder more conveniently and quickly, at least one of the plurality of dry powder feed ports 702 is set to The pneumatic filling inlet 701 is suitable for connecting the dry powder pneumatic filling pipeline, so that it can be conveniently connected with the dry powder pneumatic conveying device such as the dry powder pneumatic conveying vehicle through the dry powder pneumatic filling pipeline, which is applied in the multifunctional fire fighting combined device of the present invention. It is particularly useful when it comes to mobile devices such as fire trucks, which can significantly improve the efficiency of fire fighting operations.

In addition, in order to fully realize the continuous spraying of the dry powder, as shown in FIG. 4 and FIG. 5, the dry powder storage device 7 of the present invention is also significantly different in structure from the prior art dry powder storage device, and the dry powder storage device 7 is mainly A dry powder storage bin 705, a dry powder feed port 702 for adding dry powder to the dry powder storage bin, and a screw conveyor 703 disposed at the bottom of the dry powder storage bin 705 are included.

 In order to make the dry powder entering the dry powder storage bin 705 or the dry powder stored in the dry powder storage bin 705 smoothly and smoothly enter the screw conveyor 703 at the bottom of the dry powder storage bin 705 for dry powder transportation, preferably, the dry powder storage bin The inner wall surface of the 705 has a slope to allow the dry powder to slide to the screw conveyor 705. Further optimized, as shown in Figures 4 and 5, the lower portion of the dry powder storage bin 705 is formed as a V-shaped portion, the bottom of which is respectively mounted with the screw conveyor 703, specifically, the bevel of the V-shaped portion The slope is generally greater than the slope at which the dry powder can be retained, and the bottom of the slope of the V-shaped portion is in contact with the trough of the screw conveyor 703.

 Further, preferably, the top of the dry powder storage device 7 is further provided with a filter 704, since the spiral blades of the screw conveyor 703 are continuously rotated, and need to be stored to the dry powder through the dry powder feed port 702 (preferably the pneumatic filling feed port 701). The dry powder is continuously added in the silo 705. In order to prevent the excessive pressure of the dry powder storage tank 705 from affecting the transport, the filter 704 is disposed to communicate with the outside air, so that the dry powder does not leak to the outside.

 For the screw conveyor 703 employed in the above dry powder storage device 7, it may be a screw conveyor of various driving forms (also known as "Auger" by those skilled in the art), and the screw conveyor is well known to those skilled in the art. The conveying device mainly uses a rotating spiral blade to push the material for screwing, for example, an electric screw conveyor (that is, driven by a motor), and of course, a mechanically driven screw conveyor driven by an internal combustion engine can also be used. In the embodiment shown in FIG. 3, the screw conveyor 703 is a hydraulically driven screw conveyor. To this end, the multi-function fire-fighting combination device of the present invention should also be equipped with a hydraulic control system 18, which is a hydraulic control system 18- A hydraulic motor for driving the screw conveyor 703 and a hydraulic pump for supplying hydraulic oil to the hydraulic motor are generally included. In this case, the power unit of the multifunctional fire-fighting combination device of the present invention needs to drive a hydraulic pump to supply the hydraulic motor. Oil that causes the hydraulic motor to rotate, and the hydraulic motor rotates to drive the screw conveyor Rotary blade rotation. Typically, the upper portion of the conveying groove of the screw conveyor 703 is open, and a spiral blade capable of being driven to rotate is installed in the conveying groove, and the dry powder in the dry powder storage bin 705 enters the screw conveyor 703, and the screw conveyor 703 feeds the dry powder to it. The dry powder discharge port 706 (the dry powder discharge port 706, that is, the dry powder discharge port of the dry powder storage device 7) is conveyed, and enters the spiral pneumatic conveying device 6 through the dry powder discharge port 706 and the dry powder input port 19 of the spiral pneumatic conveying device 6. The fluidized pressurization is performed in the spiral pneumatic conveyor 6, and an air-dry powder two-phase fluid is formed, which is then transported outward through the fluidized dry powder delivery pipe 23.

Further, in order to enhance the fire extinguishing effect, forming a contemporaneous injection and expanding the injection range, preferably, the multifunctional fire fighting assembly of the present invention further includes an injection robot 3 including a turntable 304 that can be driven to rotate, mounted on the turntable a folding boom 305 on the 304, and a final arm mounted on the folding boom 305 A nozzle connection mechanism 303 at the end of the rack, the injector and mixer 302 are mounted on the nozzle connection mechanism 303, and the turntable 304 is driven by the power unit. A relatively complete injection azimuth adjustment of the nozzle 301 has been achieved by the turntable 304 and the folding boom 305, but more preferably, similar to a conventional jetting robot on a fire truck, the showerhead attachment mechanism 303 is capable of being opposite to the folding arm The nozzle action mechanism of the last stage boom movement in the frame 305. Specifically, the nozzle action mechanism includes a connecting rod and a driving device, one end of the connecting rod is hinged on the final stage arm to be rotatable relative to the final stage arm, and the other end is provided with a connecting head capable of rotating relative to the connecting rod The connector connects the mixer 302 and the nozzle 301. The drive means can take a variety of forms, for example it can comprise two small motors for driving the connecting rod and the connecting head for rotation respectively; for example, it can also be hydraulically driven by two small hydraulic motors. The plane of rotation of the connecting rod is perpendicular to the plane of rotation of the nozzle that drives the nozzle and the mixer to rotate. Therefore, the nozzle action mechanism can cause the nozzle 301 and the mixer 302 to rotate in two mutually perpendicular planes, that is, the rotation of the connecting rod around the hinge point on the final stage arm to drive the nozzle 301 and the mixer 302 to rotate. And the connecting head rotates relative to the connecting rod, thereby driving the nozzle 301 and the mixer 302 to rotate relative to the connecting rod, which can adjust the jetting position of the injector through the nozzle connecting mechanism 303 when the turntable 304 and the folding boom 305 are adjusted in position. , thus achieving a better jetting effect. Further, robots have been widely used in the field of construction machinery and other fields. For the injection robot 3 of the present invention, the turntable 304 and the folding boom 305 are relatively commonly used in construction machinery such as concrete pump trucks. Specifically, the turntable 304 is mainly a rotary platform, which can be in the form of a motor drive, an internal combustion engine drive, and the most commonly used on a construction machine is a hydraulic swing platform, between adjacent booms in the folding boom 305 and the folding boom A hydraulic cylinder or an electric telescopic rod for driving the folding boom 305 to realize the folding action is respectively installed between the first boom and the turntable 304 of the 305, and a hydraulic cylinder is generally used in the construction machine, specifically, the first arm of the folding boom The frame is hinged to the turntable 304, and then the adjacent booms in the folding boom are sequentially hinged, and the folding boom is folded by the expansion or contraction of the piston rod or the electric telescopic rod of the hydraulic cylinder. The folding boom frame 305 is shown in FIG. The boom is folded, but the invention is not limited thereto.

In the power device of the multifunctional fire-fighting combination device of the present invention, it can adopt various forms of power arrangement, and even when it is applied to a fire truck, a ship or the like, it is even possible to pass through a special power device without setting itself. The power take-off device borrows the power of the fire engine and the engine on the ship. Here, by the way, the screw conveyor 703, the air compressor 4, etc. mentioned in the present invention may be commercially available. The apparatus for driving the engine may also be a main body portion that performs its main function, and the present invention has corresponding limitations and descriptions for the power unit. For example, when the multifunctional fire-fighting combination device of the present invention constitutes an independent fire-fighting device, the power device thereof may include a drive for driving the concrete pump 11, the metering pump 16, the screw pneumatic conveyor 6, the air compressor 4, and the screw conveyor 703. And a shared drive engine of the turntable 304 that outputs a power drive via a corresponding output shaft of the transfer case The movable concrete pump 11, the metering pump 16, the spiral pneumatic conveyor 6, the air compressor 4, the screw conveyor 703 and the turntable 304, in this mechanical driving form, the concrete pump 11 can generally adopt a mechanically driven plunger concrete pump, Extrusion concrete pump, etc. Further, in the form of the shared drive engine, since the multifunctional fire fighting combination device of the present invention does not require action when using a spray medium spray, for example, when the concrete spray function is used, the screw conveyor 703, The spiral pneumatic conveyor 6 does not need to be operated. Therefore, in this case, the power input ends of the concrete pump 11, the metering pump 16, the spiral pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304 are respectively set. There is a clutch; wherein the transfer case belongs to a well-known transmission mechanism, and the main body thereof is a transmission gear set, generally having an input shaft and having a plurality of output shafts, thereby enabling "one-to-many" power transmission. The transfer case was originally mainly applied to form a full-bridge or multi-bridge drive on a car. Since it can perform "one-to-many" power transmission, it has been widely applied to various fields, and its mechanical structure principle is known to those skilled in the art. It is also apparent that a plurality of power take-off shafts can obviously be formed by the gear train. The clutch also belongs to a device commonly used in a power transmission mechanism, and details are not described herein again.

 In addition, as another alternative, the power device may also include correspondingly driving the concrete pump 11, the metering pump 16, the screw pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304. Drive engine, each of the drive engines correspondingly drives the concrete pump 11, the metering pump 16, the spiral pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304 via corresponding deceleration devices, that is, In this case, the concrete pump 11, the metering pump 16, the screw pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304 each have their own independent driving engines, which increases the number of driving engines, but each drive The power of the engine can be reduced accordingly and can be controlled independently. Further, specifically, the above-described drive engine may generally employ an internal combustion engine or an electric motor.

Of course, the power distribution scheme of the present invention is not limited to the mechanical driving form. Specifically, the concrete pump 11, the metering pump 16, the spiral pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304 are respectively hydraulically driven. Concrete pump, hydraulic metering pump, hydraulic spiral pneumatic conveyor 6, hydraulic air compressor, hydraulic screw conveyor 703 and hydraulic rotary table 304, it should be noted that the hydraulic type Concrete pumps typically have their own hydraulic cylinders through which the concrete or water suction and pumping are accomplished by the piston movement of the hydraulic cylinder. Therefore, in the preferred embodiment, the multifunctional fire fighting combination device further includes a hydraulic control system 18, which includes a corresponding driving device 16, the spiral pneumatic conveyor 6, the air compressor 4, a screw motor 703 and a hydraulic motor that rotates the turntable 304 and a drive hydraulic pump that supplies hydraulic oil to each of the hydraulic motor and the hydraulic cylinder of the concrete pump 11, the output shaft of the power unit being connected to the drive hydraulic pump An input shaft to drive the drive hydraulic pump to operate to selectively control each of the hydraulic motor and the concrete pump by control of the hydraulic control system The hydraulic cylinder of 11 supplies hydraulic oil to selectively drive the concrete pump 11, the metering pump 16, the screw pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304. Obviously, the power unit at this time may be an internal combustion engine or an electric motor. In addition, it is well known to those skilled in the art that the hydraulic control system 18 generally has a reversing valve, an opening and closing valve, etc. for controlling the hydraulic cylinders of the respective hydraulic motors or hydraulic concrete pumps, and the corresponding control circuits are not described again. In the presence of the hydraulic control system 18, hydraulic pressure for the boom is mounted between adjacent booms in the folding boom 305 and between the first boom of the folding boom 305 and the turntable 304, respectively. The cylinders, each of which is also supplied with oil by the hydraulic control system 18.

 The composition of the multifunctional fire-fighting combination device of the present invention has been described above, and the injection principle thereof will be briefly described below, which is mainly described with reference to the preferred modes of FIGS. 1 to 6 to help those skilled in the art understand, as for the injection in the basic embodiment. The principles can be understood analogously and with reference to related art in the art.

 Dry powder spraying mechanism and working principle: The dry powder in the dry powder storage device 7 enters the screw pneumatic conveying machine 6 through the dry powder input port 19 of the spiral pneumatic conveying machine 6; the spiral pneumatic conveying machine 6 is connected to the incoming material of the dry powder storage device 7, and is screwed, The material is sealed, the compressed air fluidized material input through the fluidizing air inlet 21, and the dry powder-air two-phase fluid is output, and a pressure difference is generated at the same time (ie, the normal pressure of the dry powder input port 19 of the spiral pneumatic conveying machine 6 and the dry powder output port 20 The pressure difference between the fluid delivery injection pressures of the output dry powder after fluidization). The dry powder output port 9 of the spiral pneumatic conveying machine 6 is connected to the line switching device 15 via the fluidized dry powder conveying pipe 23, and the line switching device 15 is switched into position to connect the fluidized dry powder conveying pipe 23 with the main fire extinguishing agent conveying pipe assembly 17. The injection is performed through the main fire extinguishing agent delivery pipe assembly 17 to the nozzle 301 of the injection robot 3. In power transmission, for example, when the multifunctional fire fighting assembly of the present invention is mounted on a fire truck, the engine power of the fire truck can be transmitted through the power splitting device 5, and the hydraulic pump in the hydraulic control system 18 is driven to output. The hydraulic oil, the hydraulic oil drives a corresponding hydraulic motor or hydraulic cylinder to distribute the power to the screw conveyor 703, the air compressor 4, the screw pneumatic conveyor 6, and the like on the dry powder storage device 7. The hydraulic control system 18 provides the hydraulic oil, control, etc. required for the power transmission. Of course, in this case, the mixer inlet of the mixer 302 may also preferably introduce compressed air to enhance the injection pressure delivered toward the nozzle 301 (the mixer inlet typically needs to vent the compressed air toward the mixer outlet) .

Principle of continuous dry powder injection: By the cooperation of the corresponding structures of the above-mentioned dry powder storage device 7 of the present invention, the present invention can realize continuous spraying of dry powder, and in the case of dry powder injection, the fire truck is preferably conveyed through the pneumatic filling inlet 701 and the pneumatic powder. The car is connected, the pneumatic powder conveying vehicle continuously delivers dry powder to the dry powder storage bin 705, and the dry powder in the dry powder storage bin 705 is transported to the dry powder input port of the spiral pneumatic conveying machine 6 through the screw conveyor 703, and the spiral pneumatic conveying machine is used as The key completion of the whole system: continuous conveying of dry powder; the pressure difference between the normal pressure of the dry powder input port and the injection pressure of the dry powder output port is established, which together with the air compressor 4 fluidizes the dry powder, and establishes the dry powder conveying and spraying required Two-phase fluid pressure. Then, through the fluidized dry powder delivery pipe 23 connected to the dry powder output port 20 of the spiral pneumatic conveying machine 6, the pipe switching device 15, the main fire extinguishing agent delivery pipe assembly 17 to the nozzle 301 of the robot 3, continuous dry powder injection fire extinguishing is realized. Specifically, when a dry powder injection fire extinguishing occurs in the event of a fire, the multifunctional fire-fighting combination device passes through the dry powder feed port 702, preferably through the dry powder pneumatic filling pipeline of the pneumatic conveying inlet port 701 and the dry powder pneumatic conveying vehicle and other pneumatic conveying equipment. Connected (when the multifunctional fire-fighting combination device of the present invention is installed on a fire truck, the fire-fighting vehicle and the dry powder pneumatic conveying vehicle are used together to increase the efficiency and convenience of the fire-extinguishing operation, and the dry powder continuously flows to the dry powder storage tank 705 Pneumatic conveying dry powder, the dry powder in the dry powder storage bin 705 is sent to the dry powder input port 19 of the spiral pneumatic conveying machine 6 through the screw conveyor 703, and the spiral pneumatic conveying machine as the key of the whole system completes the continuous conveying of the dry powder, establishes the material sealing, and forms the pressure. Poor, and the compressed air output from the air compressor 4 via the fluidizing air inlet 21 fluidizes the dry powder output from the dry powder output port 20, and forms a dry powder-air two-phase fluid having a sufficient injection pressure at the dry powder output port 20, And through the fluidized dry powder delivery pipe 23 pipeline switching device 15, the main fire extinguishing agent delivery pipe assembly 17 to the robot 3 Nozzle 301, thereby performing a continuous injection extinguishing powder.

 Concrete spraying mechanism and working principle: The receiving hopper on the inlet of the concrete pump 11 receives the concrete pump from the concrete pump, through the fluid conveying pipe assembly 12, and the pipe switching device 15 (switching to the concrete position, that is, making the fluid conveying pipe total 12 is connected to the main fire extinguishing agent pipe assembly 17), the main fire extinguishing agent pipe assembly 17 is to the mixer 302 on the robot 3; the quick setting agent in the concrete additive tank 9 is pumped by the metering pump 16, through the three The reversing valve 13 is added to the mixer 302 of the robot 3 in proportion to the displacement of the concrete pump; the air compressor 4 generates compressed air, through the air line assembly 14 to the mixer 302 of the robot 3, mixing The concrete and quick-setting admixture in the device 302 are fluidized by the compressed air to form a solid, liquid and gas three-phase fluid, and the concrete jet is quickly coagulated and covered under the pumping pressure and the compressed air to cover the fire. In the power transmission, for example, when the multifunctional fire-fighting combination device of the present invention is installed on a fire truck, the chassis power can be taken through the transmission shaft through the power-distributing device 5, and the hydraulic power source is driven to drive the concrete pump 11 and the metering pump. 16 and the air compressor 4, etc., the hydraulic system 18 provides hydraulic oil, control, and the like required for the pressure power transmission.

Water foam mixture spraying mechanism and working principle: the concrete pump 11 is connected to the external fire water, through the fluid conveying pipe assembly 12, the pipe switching device 15 (concrete position, that is, the fluid conveying pipe assembly 12 and the main fire extinguishing agent The delivery pipe assembly 17 is in communication), the main fire extinguishing agent delivery pipe assembly 17 to the mixer 3 of the robot 3; the foam fire extinguishing agent in the foaming agent tank 8, under the pumping action of the metering pump 16, through the three-way reversing valve 13 (foaming agent position), metering pump 16 and piping are added to the mixer 302 of the robot 3 in proportion to the pumping displacement of the mixed pump; the water foaming agent is covered under the pumping pressure Extinguishing. Of course, in this case, the mixer inlet of the mixer 302 may also preferably introduce compressed air to enhance the jetting effect of the water foam mixture. As can be seen from the above description, the present invention provides a multifunctional fire-fighting device capable of realizing the fire-extinguishing of various fire extinguishing media of concrete, dry powder and water foam, and achieving the containment control and covering fire extinguishing function. In addition, the invention can further realize on-site filling of dry powder, continuous dry powder injection fire extinguishing, and improve fire extinguishing efficiency of fire fighting equipment.

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following describes a specific embodiment of the above-described multifunctional fire-fighting combination device of the present invention applied to a fire truck to form a multi-function fire truck. To this end, the present invention also provides a multifunctional fire truck, wherein the multifunctional fire truck is equipped with the above-described multifunctional fire fighting assembly of the present invention. Specifically, the chassis 1 of the multi-function fire truck is generally provided with a sub-frame 2, and the multi-function fire-fighting combination device is mounted on the sub-frame 2. Obviously, the concrete pump 11 is mounted at the rear of the sub-frame 2, and the rear portion of the sub-frame 2 is also provided with legs 10 for auxiliary support.

 Since the main technical features of the multifunctional fire fighting combined device of the present invention have been described above, the basic technical solution, the preferred embodiment of the above-described multifunctional fire fighting combined device, and the corresponding technology without departing from the object of the present invention The modified embodiment formed by the combination of the features can be applied to the multifunctional fire truck of the present invention according to the application requirements, for example, the combination of the technical features of the injection robot and the multifunctional fire-fighting combination device of the above basic technical solution, and the like, The technical features of the combination device will not be repeatedly described herein, and only the power device in which the multifunctional fire protection combination device of the present invention is mounted on a fire engine will be described.

In the case where the multifunctional fire-fighting combination device of the present invention is installed on a fire truck, the multifunctional fire-fighting combination device may have its own special power device, so that the whole system constitutes an independent system installed on the fire truck, such as the above-mentioned shared drive. The engine is provided with a respective driving engine such as a concrete pump 11, a spiral pneumatic conveying machine 6, etc., but this obviously increases the weight of the fire fighting vehicle and increases the driving load. Therefore, more preferably, the multifunctional fire fighting combination device can borrow a fire truck. The power of the engine, specifically, the multi-function fire-fighting combination device power device includes the power device including an engine of the multi-function fire truck, the engine being distributed via a force force mounted on a gearbox of the multi-function fire truck The respective output shafts of the apparatus 5 drive the concrete pump 11, the metering pump 16, the spiral pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304. Further, the hydraulic drive mode may be employed without being limited to the use of a relatively complicated mechanical drive form, in which case the concrete pump 11, the metering pump 16, the spiral pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304 They are hydraulic concrete pump, hydraulic metering pump, hydraulic spiral pneumatic conveyor, hydraulic air compressor, hydraulic screw conveyor and hydraulic rotary table. As mentioned above, hydraulic concrete pump A piston-type concrete pump generally having its own hydraulic cylinder, through which the piston of the hydraulic cylinder moves to complete the suction and pumping of concrete or water. The multifunctional fire fighting assembly further includes a hydraulic control system 18 including hydraulic motors for correspondingly driving the metering pump 16, the screw pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304 to rotate. And a driving hydraulic pump that supplies hydraulic oil to each of the hydraulic motor and the hydraulic cylinder of the hydraulic coagulation pump 11, and the corresponding output shaft of the power take-off device 4 is connected And driving the input shaft of the hydraulic pump to drive the driving hydraulic pump to operate and selectively supply hydraulic oil to each of the hydraulic motor and the hydraulic concrete pump by the control of the hydraulic control system 18, thereby selectively The concrete pump 11, the metering pump 16, the screw pneumatic conveyor 6, the air compressor 4, the screw conveyor 703, and the turntable 304 are driven. In this case, the operation of the dry powder multifunctional fire fighting assembly can be conveniently controlled by controlling the corresponding valves in the hydraulic control system 9. Hydraulic line connections for hydraulic control systems that drive hydraulic motor rotation and reciprocating piston rods of hydraulic cylinders are well known and will not be described herein.

 It is to be noted that the power take-off device 5 is a commonly used device on a special vehicle that requires additional power, such as a dump truck, a fire truck, a cement mixer, and the like, which is equivalent to a composite structure of a power take-off and a transfer case. The power is taken from one gear of the gearbox by a power take-off device installed outside the gearbox, and the power is transmitted to a plurality of working devices that need to be driven by a transfer case or a transfer device composed of a gear set, typically taken The force device and the transfer case are manufactured in a unitary structure to constitute a power take-off device.

 In addition, the power unit and its transmission mechanism are variously modified by those skilled in the art. For example, mechanical driving and hydraulic driving mixing may be employed in the present invention. In summary, any modifications that fall within the scope of the technical scope of the present invention are within the scope of the present invention.

 Therefore, the multifunctional fire-fighting combination device and the multi-functional fire-fighting vehicle of the invention propose a new concept multi-functional fire-fighting which can realize various fire-extinguishing substances of concrete, dry powder and water foam mixture through the integration innovation of different technologies. The vehicle can be filled with fire extinguishing material on site, and the self-supplied compressed air is used as a fluidized medium through the air compressor, so that the fire extinguishing process of continuous filling and continuous spraying of concrete, dry powder and water foam mixture can be realized, and the fire extinguishing process can be effectively improved. The fire extinguishing efficiency.

It can be seen from the above description that the multifunctional fire-fighting combination device and the multifunctional fire-fighting vehicle thereof have the advantages that the fire extinguishing medium and the fire extinguishing function are added, the combination of the conventional fire extinguishing and the special fire extinguishing function of the concrete is realized, and the utility model is wider and more utilized. The rate is higher. The multi-functional fire-fighting combination device of the invention and the fire-fighting medium transportation vehicle group such as the multi-function fire fighting vehicle and the dry powder pneumatic conveying vehicle can realize continuous injection fire extinguishing, and the whole machine has very high fire extinguishing operation efficiency, especially for dealing with a large fire field, which can The on-site installation of fire-fighting medium such as dry powder is adopted. The fluidized medium adopts the compressed air of the air compressor, and can be self-supplied, and the plurality of device pipelines of the concrete, dry powder and water foam mixture multifunctional fire-fighting combination device can be switched and shared. The structure is more compact and compact. Therefore, the multifunctional fire-fighting combination device of the present invention and the multifunctional fire-fighting vehicle thereof can selectively perform water-foaming mixture, dry powder or concrete fire-extinguishing through a complete set of multi-functional fire-fighting combination devices, which increases fire extinguishing The medium and the fire extinguishing function realize multi-functional fire extinguishing, and have the conventional fire extinguishing function and the special fire extinguishing function of the concrete. When dealing with a large fire field, the sprayed concrete can be used to divide and block the fire field and cover the fire extinguishing, thereby being more practical. The fire extinguishing efficiency is higher. Further, the present invention Continuously fire-extinguishing can be achieved with a more optimized structure in the case of a fire-fighting medium transport vehicle, in particular, ingeniously providing fluidized compressed air through a spiral pneumatic conveyor and using an air compressor, and through the specific cooperation of the dry powder storage device The structure realizes continuous jet fire extinguishing of dry powder. The multifunctional fire-fighting combined device and the multifunctional fire-fighting vehicle of the invention realize sharing in multiple parts, and the structure is compact and compact, and has excellent fire-extinguishing performance.

 The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments, and various simple modifications of the technical solutions of the present invention may be made within the scope of the technical idea of the present invention. These simple variations are within the scope of the invention.

 It should be further noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the invention may not be further described in various possible combinations.

 In addition, any combination of various embodiments of the invention may be made, as long as it does not deviate from the idea of the invention, and it should be regarded as the disclosure of the invention.

Claims

1. A multifunctional fire-fighting combined spray unit, comprising an injector, wherein the multifunctional fire-fighting spray unit further comprises a mixer (302) having a main fire extinguishing agent inlet, a mixed fire extinguishing agent inlet, and a receiving compression a mixer inlet for air, and a mixer outlet in communication with the injector.

2. A multifunctional fire fighting assembly comprising a foaming agent tank (8), a dry powder storage device (7) and at least one source of compressed air, the dry powder in the dry powder storage device (7) passing through the compressed air stream of the compressed air source And output through the dry powder output port (20), wherein

 The multifunctional fire fighting assembly further includes a concrete additive tank (9), a pumping device driven by the power unit to pump water or concrete, and the multifunctional fire fighting combined spray unit according to claim 1.

 The main fire extinguishing agent inlet of the mixer (302) is selectively in communication with the dry powder outlet (20) or the outlet of the pumping device, the mixed fire extinguishing agent inlet selectively with the foaming agent tank (8) Or the concrete additive tank (9) is in communication, the mixer inlet being connected to a respective source of compressed air in the source of compressed air.

3. The multifunctional fire fighting combination device according to claim 2, wherein the multifunctional fire fighting combination device further comprises a metering pump (16) and a spiral pneumatic conveying device (6), wherein the at least one compressed air source is air pressure Machine (4), the pumping device is a concrete pump (11);

 The spiral pneumatic conveying machine (6) has a dry powder input port (19) for receiving dry powder in the dry powder storage device (7), the dry powder output port (20), and a dry powder for outputting the dry powder output port. a fluidized air inlet (21) for blowing compressed air to be fluidized, wherein the dry powder conveying section of the spiral pneumatic conveying machine (6) is provided with a rotatable spiral blade (22);

 An outlet of the concrete pump (11), the dry powder outlet (20), and the main fire extinguishing agent inlet are respectively connected by pipes to a tank for selectively causing the main fire extinguishing agent inlet to be selectively connected to the concrete pump (11) a line switching device (15) connected to the outlet or the dry powder outlet (20); the mixed fire extinguishing agent inlet is respectively connected to the foaming agent via a metering pump (16) and a three-way switching valve (13) a tank (8) and a concrete additive tank (9), the compressed air outlet of the air compressor (4) being connected to the mixer inlet and the flow through pipes in the air line assembly (14), respectively Air inlet (21);

The metering pump (16), the screw pneumatic conveyor (6) and the air compressor (4) are driven by the power unit.

4. The multifunctional fire fighting assembly according to claim 3, wherein the pipeline switching device (15) is a two-position three-way reversing valve, and the concrete pump (11) outlet is via a fluid conveying pipe assembly ( 12) an interface connected to the two-position three-way reversing valve, wherein the dry powder output port (20) is connected to another interface of the two-position three-way reversing valve via a fluidized dry powder conveying pipe (3), The main fire extinguishing agent inlet is connected to the third interface of the two-position three-way reversing valve through the main fire extinguishing agent delivery pipe assembly (17).

5. The multifunctional fire fighting assembly apparatus according to claim 3, wherein an inner diameter of the dry powder conveying section of the spiral pneumatic conveying machine (6) is formed to be reduced toward the dry powder output port (20) to cause the dry powder conveying The casing of the segment is at least partially tapered, and/or the helical blade (22) is a variable pitch helical blade capable of causing dry powder to be transported at a faster rate and then slower during transport of the dry powder conveying section.

The multifunctional fire fighting combination device according to any one of claims 3 to 5, wherein a top of the dry powder storage device (7) is provided with a plurality of dry powder feed ports (702), the plurality of dry powder feeds At least one of the ports (702) is a pneumatic filling inlet (701) adapted to be connected to the dry powder pneumatic filling pipe, and the top of the dry powder storage device (7) is further provided with a filter that communicates with the external atmosphere ( 704).

7. The multifunctional fire fighting assembly according to claim 6, wherein the dry powder storage device (7) comprises a dry powder storage bin (705), the dry powder for adding dry powder to the dry powder storage bin (705) a spout (702) and a screw conveyor (703) having a dry powder discharge port (706), the screw conveyor (703) being disposed at a bottom of the dry powder storage bin (705) to be capable of receiving the dry powder storage bin a dry powder in (705), a dry powder discharge port (706) of the screw conveyor (703) is connected to a dry powder input port (19) of the spiral pneumatic conveyor (6), and the screw conveyor (703) passes The power unit is driven.

8. The multi-function fire fighting assembly of claim 7, wherein the inner wall surface of the dry powder storage bin (705) has a slope to allow dry powder to slide to the screw conveyor (703).

9. The multifunctional fire fighting assembly according to claim 8, wherein a lower portion of the dry powder storage bin (306) is formed as a V-shaped portion, and the screw conveyor is respectively installed at a bottom of the V-shaped portion. ).

10. The multifunctional fire fighting combination device according to claim 7, wherein the multifunctional fire fighting combination device further comprises an injection robot (3) including a turntable (304) capable of being driven to rotate, a folding boom (305) mounted on the turntable (304), and a head attachment mechanism (303) mounted at an end of the final stage of the folding boom (305), the injector and the mixer (302) Installed on the nozzle connection mechanism (303), the turntable (304) is driven by the power unit.

11. The multifunctional fire fighting combination device according to claim 10, wherein the power device comprises a driving device (11), a metering pump (16), a screw pneumatic conveying device (6), and an air compressor. (4) a common drive engine of the screw conveyor (703) and the turntable (304), the drive engine driving the concrete pump (11), the metering pump (16), the screw pneumatic conveying via respective output shafts of the transfer case Machine (6), air compressor (4), screw conveyor (703) and turntable (304), concrete pump (11), metering pump (16), spiral pneumatic conveyor (6), air compressor (4 ), the respective power input ends of the screw conveyor (703) and the turntable (304) are respectively provided with clutches; or

 The power unit includes a corresponding driving unit (11), a metering pump (16), a screw pneumatic conveyor (6), an air compressor (4), a screw conveyor (703), and a turntable (304). Driving the engine, each of the driving engines correspondingly driving the concrete pump (11), the metering pump (16), the screw pneumatic conveying machine (6), the air compressor (4), the screw conveyor (703) via corresponding deceleration devices And the turntable (304).

12. The multifunctional fire fighting assembly according to claim 10, wherein the concrete pump (11), the metering pump (16), the spiral pneumatic conveyor (6), the air compressor (4), and the screw conveyor ( 703) and the turntable (304) are a hydraulic concrete pump, a hydraulic metering pump, a hydraulic spiral pneumatic conveyor (6), a hydraulic air compressor, a hydraulic screw conveyor (703), and a liquid a rotary turret (304), the multifunctional fire fighting assembly further comprising a hydraulic control system (18), the hydraulic control system (18) comprising a corresponding driving pump (16), a spiral pneumatic conveyor (6) a hydraulic motor that rotates the air compressor (4), the screw conveyor (703), and the turntable (304), and a drive hydraulic pump that supplies hydraulic oil to each of the hydraulic motor and the hydraulic cylinder of the concrete pump (11). An output shaft of the power unit is coupled to the input shaft of the drive hydraulic pump to drive the drive hydraulic pump to operate the pump oil.

A multi-function fire truck, wherein the multi-function fire truck is equipped with the multifunctional fire-fighting combination device according to any one of claims 2 to 10.

14. The multi-function fire truck according to claim 13, wherein the power unit includes an engine of the multi-function fire truck, and the engine is distributed via a force force mounted on a gearbox of the multi-function fire truck Device (5) The corresponding output shaft outputs power.

15. The multi-function fire truck of claim 14, wherein the multi-function fire fighting assembly further comprises a hydraulic control system (18), the hydraulic control system (18) comprising a drive hydraulic pump for supplying hydraulic oil, A corresponding output shaft of the power take-off device (4) is coupled to an input shaft of the drive hydraulic pump to drive the drive hydraulic pump to operate the pump oil to provide power.

16. The multi-function fire truck of claim 13, wherein the power unit comprises a shared drive engine that is powered via a respective output shaft of the transfer case; or the power unit includes a plurality of power units for separately providing power Drive the engine.

17. The multifunctional fire truck of claim 13, wherein the multifunctional fire fighting assembly further comprises a hydraulic control system (18), the hydraulic control system (18) comprising a drive hydraulic pump for supplying hydraulic oil, An output shaft of the power unit is coupled to an input shaft of the drive hydraulic pump to drive the drive hydraulic pump to operate the pump oil to provide power.