A portable multi-dose proportioning device and method

Abstract

The application discloses a portable multi-dose proportion mixing device, which comprises a liquid inlet connected with an external water supply fire truck or a hydrant and provided with a control valve; a first liquid inlet unit connected with the liquid inlet and a first mixer at two ends respectively, and used for providing a first medicament; the first mixer is connected with the first liquid inlet unit and a second mixer respectively; a second liquid inlet unit is used for inhaling the same medicament or different medicaments and outputting to the second mixer; and the second mixer is used for mixing the liquid output by the first mixer and the liquid output by the second liquid inlet unit and finally outputting to a connected medium releasing device. The application provides a portable foam proportion mixing device and method which can realize multi-component medicament combination and proportion adjustment.

Description

Technical Field

[0001] The invention relates to a portable multi-agent proportional mixing device and method, belonging to the technical field of foam fire extinguishing equipment. Background Art

[0002] In recent years, domestic and international institutions have focused on developing versatile, high-efficiency foam fire extinguishing agents, addressing the complex fire types and diverse firefighting missions faced by firefighting teams. The combined use of multi-component foaming agents is expected to break through the technical barriers of traditional water-based foams and become a key development direction for future foam firefighting technology. To achieve the efficient combination of multi-component agents in actual firefighting scenarios, the foam proportioning device is the core component of the entire system.

[0003] Existing traditional foam proportioning devices, including five generations of negative pressure, pressure, balanced, metered injection, and mechanical pump-in foam proportioning devices, are only suitable for mixing a single-component agent with water. For applications where multiple components are dissolved in water and mixed on-site to create a highly stable foam fire extinguishing agent, existing solutions require multiple proportioning devices to be installed in series or parallel, resulting in a large and complex system with cumbersome operation, poor foaming performance, and limited portability.

[0004] With respect to the related issues in the above technical background, no very effective solutions have been proposed so far. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a portable multi-dose proportion mixing device and method.

[0006] According to an embodiment of the present invention, a first solution is provided:

[0007] A portable multi-dose proportion mixing device comprises a liquid inlet, a first liquid inlet unit, a first mixer, a second liquid inlet unit and a second mixer;

[0008] The liquid inlet is connected to an external water supply source such as a fire truck or a fire hydrant, and a control valve is provided on the pipeline of the liquid inlet;

[0009] The first liquid inlet unit has two ends connected to the liquid inlet and the first mixer respectively, and the first liquid inlet unit is used to provide the first medicine;

[0010] The first mixer is connected to the first liquid inlet unit and the second mixer respectively, and can complete the mixing of the first agent and water and output it to the second mixer;

[0011] The second liquid inlet unit can inhale the same medicine or different medicines and output them to the second mixer;

[0012] When the second liquid inlet unit sucks different medicaments, the proportion of different medicaments can be adjusted;

[0013] The second mixer can mix the liquid output by the first mixer and the liquid output by the second liquid inlet unit, and finally output to the connected medium release device.

[0014] Further, the first liquid inlet unit comprises a first liquid inlet, a first one-way valve and a negative pressure foam suction pipe;

[0015] The input end of the negative pressure foam suction pipe is connected to the liquid inlet, and the output end is connected to the first mixer;

[0016] The negative pressure foam suction pipe is connected to the storage tank supplying the first medicament through the first liquid inlet, and the first one-way valve is arranged on the first liquid inlet;

[0017] The first mixer comprises a first mixing inlet and a first mixing outlet;

[0018] The first mixing inlet is connected to the output end of the first liquid inlet unit;

[0019] The first mixing outlet is connected to the second mixer.

[0020] Further, the second liquid inlet unit comprises an engine, a transmission component, a special plunger pump, a second liquid inlet, a third liquid inlet, an injection pipeline and a shunt pipeline;

[0021] The engine provides power for the second liquid inlet unit and can control the amount of sucked medicament by adjusting the speed, and by controlling the amount of sucked medicament, the use proportion of medicament sucked by the second liquid inlet unit and the first medicament can be controlled;

[0022] The engine is connected to the transmission component, and the transmission component outputs power to the special plunger pump;

[0023] The special plunger pump can suck two different medicaments, namely the second medicament and the third medicament, and can control the proportion of the two output medicaments through the connected shunt pipeline, and the proportion can be selected to adjust the proportion including 1:3, 1:2, 1:1, 2:3, 2:2, 3:2, 2:1, 3:1, 3:3;

[0024] The special plunger pump is connected to two liquid inlets on both sides, namely the second liquid inlet and the third liquid inlet, and the second liquid inlet and the third liquid inlet are respectively connected to the storage tanks storing the second medicament and the third medicament;

[0025] The second liquid inlet and the third liquid inlet are respectively provided with a one-way valve.

[0026] Further, the special plunger pump is provided with three plungers on both sides, respectively, namely a first plunger, a second plunger and a third plunger, and the plungers are isolated from each other by a separation component;

[0027] The three plungers provided on both sides are connected to the central rotating shaft;

[0028] Each plunger is connected with an output cavity and a suction cavity;

[0029] The suction cavity is used for connecting the second liquid inlet or the third liquid inlet;

[0030] The output cavity is used for connecting the shunt pipeline.

[0031] Further, the shunt pipeline is connected with the special plunger pump, and is used for controlling the amount of medicament output from one side of the special plunger pump to the second mixer;

[0032] The shunt pipeline is provided with two sets, which are connected with the output cavities on both sides of the special plunger pump;

[0033] The shunt pipeline is provided with a first three-way valve, a first backflow check valve, a first discharge check valve, a second three-way valve, a second backflow check valve and a second discharge check valve;

[0034] The output cavity of the first plunger is connected with one end of the second three-way valve, and the other two ends of the second three-way valve are connected with the second backflow check valve and the second discharge check valve respectively, the second backflow check valve is connected with the one-way valve of the liquid inlet, and the second discharge check valve is connected with the second mixer;

[0035] The output cavities of the second plunger and the third plunger are connected with one end of the first three-way valve, and the other two ends of the first three-way valve are connected with the first backflow check valve and the first discharge check valve respectively, the first backflow check valve is connected with the one-way valve of the liquid inlet, and the first discharge check valve is connected with the second mixer;

[0036] The output ends of the second discharge check valve and the first discharge check valve on the same side of the special plunger pump are connected.

[0037] Further, the second mixer comprises a second mixing inlet, an inner ring, a cavity, a small hole, an outer shell and a flange;

[0038] The second mixer has an outer shell, which is in a cylindrical shape;

[0039] One section of the outer shell is provided with a flange;

[0040] Three second mixing inlets are arranged on the outer periphery of the outer shell, and are arranged at intervals of 120 degrees;

[0041] One of the three second mixing inlets is connected with the first mixing outlet, another is connected with the output end of the second discharge one-way valve and the first discharge one-way valve on one side of the special plunger pump, and the third is connected with the output end of the second discharge one-way valve and the first discharge one-way valve on the other side of the special plunger pump;

[0042] An inner ring is further arranged in the shell, and the shell and the inner ring form a cavity;

[0043] A small hole is further arranged on the inner ring.

[0044] Further, the mixing device further comprises an air inlet unit connected with the first mixer, the air inlet unit comprising an air source for supplying configuration gas required for mixing; the first mixer completes mixing of the first medicament, water and the configuration gas and outputs to the second mixer;

[0045] The first mixer further comprises an air injection port connected with the air inlet unit.

[0046] According to the embodiment of the present application, a second scheme is provided:

[0047] A method for realizing portable multi-dose proportion mixing using the portable multi-dose proportion mixing device in the first scheme, comprising the steps of,

[0048] S1, multi-dose mixing;

[0049] The first liquid inlet unit is connected with the first medicament storage tank, after the water source enters the first liquid inlet unit, the first medicament is inhaled according to a set proportion by the negative pressure foam suction device, and the water and the first medicament are fully mixed in the first mixer;

[0050] The second liquid inlet unit is connected with the same or different medicament storage tank, the engine drives the special plunger pump to rotate through the transmission shaft, the medicament is inhaled and then enters the second mixer to mix with the mixed liquid injected by the first mixer;

[0051] The proportion and amount of the first medicament and the medicament output by the second liquid inlet unit can be adjusted by adjusting the amount of the water source and the rotating speed of the engine;

[0052] S2, proportion adjustment;

[0053] The special plunger pump is symmetrically distributed on both sides, and the same side is divided into single plunger connection and double plunger connection, and the output cavities of the single plunger connection and the double plunger can be controlled whether to output medicament through the shunt pipeline.

[0054] Further, in S1, the foam is generated;

[0055] The compressed gas can also be injected into the first mixer to mix and foam together, and the mixed foam mixed liquid enters the second mixer.

[0056] Further, in S2, the proportion mixing of three different medicaments is realized;

[0057] The second unit can be connected to two different medicament storage tanks, and the special plunger pump can inhale different medicaments on the symmetrical two sides to realize the proportion mixing of three medicaments;

[0058] The proportion of the two medicaments inhaled by the second liquid inlet unit can be adjusted by adjusting the three-way pipe of the shunt pipe;

[0059] The output or reflux of one medicament can be realized by adjusting the second three-way valve;

[0060] The output or reflux of two medicaments can be realized by adjusting the first three-way valve;

[0061] The output refers to the output of the medicament to the second mixer, and the reflux refers to the reflux of the medicament to the suction cavity of the special plunger pump;

[0062] The supply amount and proportion of the medicament can be changed by different settings of the shunt pipe on the two sides of the special plunger pump.

[0063] Compared with the prior art, the technical scheme provided by the application has the beneficial effects.

[0064] The application provides a portable foam proportion mixing method and device capable of realizing the combination of multiple-component medicaments and adjustable proportion.

[0065] (1) In the use scene of the combination of multiple medicaments dissolved in water on site, the second set of proportion mixing device does not need to be installed in series and parallel, and the mixing of three-component medicaments and water can be realized in one set of proportion mixing device, and the whole device is powered by an engine, so that the structure is simple and compact, transportation and use are convenient, and the device can be applied to more fire extinguishing scenes;

[0066] (2) The symmetrical plunger pump, the single and double plunger cylinders and the reflux pipe are designed ingeniously, so that the mixing proportion of two-component medicaments can be adjusted, the two-component medicaments can be mixed in nine equivalent ratios of 1:3, 1:2, 1:1, 2:3, 2:2, 3:2, 2:1, 3:1 and 3:3, and the combination of multiple-component medicaments can be realized, so that the use scene is more extensive;

[0067] (3) In order to enable multiple-component medicaments to be fully and uniformly mixed and to play a better extinguishing effect, two mixers are arranged in the application, the first mixer can complete the mixing of water, the first medicament and compressed air, and the second mixer is designed to have two function modules of three-way liquid uniform injection and uniform mixing, so that the multiple-component medicaments can be fully and uniformly mixed in the working condition of the combination of multiple-component medicaments, and the best medicament performance can be played;

[0068] (4) Through the water inlet control and the engine speed control, the proportion control of the first medicament, the second medicament and the third medicament can be adjusted, so that the three medicaments can be adjusted in a wider proportion range. BRIEF DESCRIPTION OF DRAWINGS

[0069] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0070] Wherein:

[0071] Figure 1 It is a working principle diagram of the mixing device in an embodiment;

[0072] Figure 2 It is a working principle diagram of the mixing device in an embodiment; Figure 1 It is a partial view of the second liquid inlet unit;

[0073] Figure 3 It is a schematic diagram of a special plunger pump structure;

[0074] Figure 4 It is a schematic diagram of the second mixer in an embodiment;

[0075] Figure 5 It is a D-D cross-sectional view of the second mixer in an embodiment; Figure 4

[0076] Figure 6 It is an E-E cross-sectional view of the second mixer in an embodiment; Figure 4

[0077] Reference signs:

[0078] 1, liquid inlet; 2, first liquid inlet unit; 2-1, first liquid inlet; 2-2, first one-way valve; 2-3, negative pressure type foam suction pipe fitting; 3, air inlet unit; 4, first mixer; 4-1, first mixing inlet; 4-2, gas injection port; 4-3, first mixing outlet;

[0079] 5, second liquid inlet unit; 5-1, engine; 5-2, transmission component; 5-3, special plunger pump; 5-3-1, first plunger; 5-3-2, second plunger; 5-3-3, third plunger; 5-3-4, separation component; 5-3-5, central rotating shaft; 5-3-6, output cavity; 5-3-7, suction cavity; 5-4, second liquid inlet; 5-5, third liquid inlet; 5-5, injection pipeline;

[0080] ​​5-6, shunt pipeline; 5-6-1, first three-way valve; 5-6-2, first backflow check valve; 5-6-3, first discharge check valve; 5-6-4, second three-way valve; 5-6-5, second backflow check valve; 5-6-6, second discharge check valve;

[0081] 6, second mixer; 6-1, second mixing inlet; 6-2, inner ring; 6-3, cavity; 6-4, small hole; 6-5, outer shell; 6-6, flange. DETAILED DESCRIPTION

[0082] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0083] As shown in Figure 1 , the working principle and main component structure of the portable multi-dose proportion mixing device are shown.

[0084] The portable multi-dose proportion mixing device provides a portable foam proportion mixing device that can realize the combination of multiple components and adjustable proportion.

[0085] It comprises a liquid inlet 1, a first liquid inlet unit 2, an air inlet unit 3, a first mixer 4, a second liquid inlet unit 5 and a second mixer 6.

[0086] The liquid inlet 1 is connected to an external water supply fire truck or a fire hydrant and the like water source, and a control valve is arranged on the pipeline of the liquid inlet 1.

[0087] The first liquid inlet unit 2 is connected to the liquid inlet 1 and the first mixer 4 at both ends, and the first liquid inlet unit 2 is used to provide a first medicament.

[0088] The air inlet unit 3 is connected to the first mixer 4, and the air inlet unit 3 comprises a gas source to supply the configured gas required for mixing.

[0089] The first mixer 4 is connected to the first liquid inlet unit 2, the air inlet unit 3 and the second mixer 6, respectively, and can complete the mixing of the first medicament, water and configured gas, and output to the second mixer 6.

[0090] The second liquid inlet unit 5 can suck in the same medicament or different medicaments and output to the second mixer 6.

[0091] When different medicaments are sucked in, the adjustment of the proportion of different medicaments can be realized.

[0092] The second mixer 6 can mix the liquid output by the first mixer 4 and the liquid output by the second liquid inlet unit 5, and finally output to the connected medium release device.

[0093] The first liquid inlet unit 2 comprises a first liquid inlet 2-1, a first one-way valve 2-2 and a negative pressure foam suction pipe 2-3.

[0094] The input end of the negative pressure foam suction pipe 2-3 is connected to the liquid inlet 1, and the output end is connected to the first mixer 4.

[0095] The negative pressure foam suction pipe 2-3 is connected to the storage tank supplying the first medicament through the first liquid inlet 2-1, and the first liquid inlet 2-1 is provided with the first one-way valve 2-2.

[0096] When the fire-fighting water flows through the negative pressure foam suction pipe 2-3, the first medicament can be sucked by using the pressure difference principle. The negative pressure foam suction pipe 2-3 is a prior art and will not be described again.

[0097] The first mixer 4 comprises a first mixing inlet 4-1, a gas injection port 4-2 and a first mixing outlet 4-3.

[0098] The first mixing inlet 4-1 is connected to the output end of the first liquid inlet unit 2.

[0099] The gas injection port 4-2 is connected to the gas inlet unit 3.

[0100] The first mixing outlet 4-3 is connected to the second mixer 6.

[0101] As shown in Figure 2 , 3 The specific implementation mode of the second liquid inlet unit 5 controlling different medicament proportions is shown.

[0102] The second liquid inlet unit 5 comprises an engine 5-1, a transmission component 5-2, a special plunger pump 5-3, a second liquid inlet 5-4, a third liquid inlet 5-5, an injection pipeline and a shunt pipeline 5-6.

[0103] The engine 5-1 provides power for the second liquid inlet unit 5 and can control the amount of sucked medicament by adjusting the rotating speed, and by controlling the amount of sucked medicament, the use proportion of the medicament sucked by the second liquid inlet unit 5 and the first medicament can be controlled.

[0104] The engine 5-1 can adopt an internal combustion engine or an electric motor.

[0105] The internal combustion engine can adopt a gasoline or diesel engine, and the electric motor can adopt an external power supply or a battery power supply mode.

[0106] The engine 5-1 is connected with a transmission component 5-2, which outputs power to the special plunger pump.

[0107] The special plunger pump can respectively suck two different medicaments, i.e., the second medicament and the third medicament, and can control the proportion of the two medicaments outputted through the connected shunt pipeline 5-6, and the proportion can be selected to adjust the ratio including 1:3, 1:2, 1:1, 2:3, 2:2, 3:2, 2:1, 3:1, and 3:3.

[0108] The special plunger pump is connected with two liquid inlets on both sides, i.e., the second liquid inlet 5-4 and the third liquid inlet 5-5, and the second liquid inlet 5-4 and the third liquid inlet 5-5 are respectively connected with the storage tanks storing the second medicament and the third medicament.

[0109] The second liquid inlet 5-4 and the third liquid inlet 5-5 are respectively provided with a one-way valve.

[0110] The special plunger pump 5-3 is respectively provided with three plungers on both sides, i.e., the first plunger 5-3-1, the second plunger 5-3-2, and the third plunger 5-3-3, and the plungers are mutually isolated by a separation component 5-3-4;

[0111] The three plungers respectively arranged on both sides are connected to the central rotating shaft 5-3-5;

[0112] Each plunger is connected with an output cavity 5-3-6 and a suction cavity 5-3-7,

[0113] The suction cavity 5-3-7 is used for connecting the second liquid inlet 5-4 or the third liquid inlet 5-5,

[0114] The output cavity 5-3-6 is used for connecting the shunt pipeline 5-6.

[0115] The shunt pipeline 5-6 is connected with the special plunger pump 5-3, and is used for controlling the amount of medicament outputted from one side of the special plunger pump 5-3 to the second mixer 6.

[0116] The shunt pipeline 5-6 is provided with two sets, which are respectively connected with the output cavities 5-3-6 on both sides of the special plunger pump 5-3.

[0117] The connection of one side will be described in detail below.

[0118] The shunt pipeline 5-6 is provided with a first three-way valve 5-6-1, a first backflow one-way valve 5-6-2, a first discharge one-way valve 5-6-3, a second three-way valve 5-6-4, a second backflow one-way valve 5-6-5, and a second discharge one-way valve 5-6-6.

[0119] The output cavity 5-3-6 of the first plunger 5-3-1 is connected to one end of the second three-way valve 5-6-4, and the other two ends of the second three-way valve 5-6-4 are respectively connected to the second backflow check valve 5-6-5 and the second discharge check valve 5-6-6,

[0120] The second backflow check valve 5-6-5 is connected to the inlet check valve.

[0121] The second discharge check valve 5-6-6 is connected to the second mixer 6.

[0122] The output cavity 5-3-6 of the second plunger 5-3-2 and the third plunger 5-3-3 is connected to one end of the first three-way valve 5-6-1, and the other two ends of the first three-way valve 5-6-1 are respectively connected to the first backflow check valve 5-6-2 and the first discharge check valve 5-6-3.

[0123] The first backflow check valve 5-6-2 is connected to the inlet check valve.

[0124] The first discharge check valve 5-6-3 is connected to the second mixer 6.

[0125] The output ends of the second discharge check valve 5-6-6 and the first discharge check valve 5-6-3 on the same side of the special plunger pump 5-3 are connected.

[0126] As shown in Figure 4 , 5 , 6, the detailed structure of the second mixer 6 is shown.

[0127] The second mixer 6 includes a second mixing inlet 6-1, an inner ring 6-2, a cavity 6-3, a small hole 6-4, an outer shell 6-5, and a flange 6-6.

[0128] The second mixer 6 has an outer shell 6-5 which is cylindrical as a whole.

[0129] One section of the outer shell 6-5 is provided with a flange 6-6.

[0130] Three second mixing inlets 6-1 are arranged on the outer periphery of the outer shell 6-5, and are arranged at intervals of 120 degrees.

[0131] One of the three second mixing inlets 6-1 is connected to the first mixing outlet 4-3; another is connected to the output ends of the second discharge check valve 5-6-6 and the first discharge check valve 5-6-3 on one side of the special plunger pump 5-3; and the third is connected to the output ends of the second discharge check valve 5-6-6 and the first discharge check valve 5-6-3 on the other side of the special plunger pump 5-3.

[0132] An inner ring 6-2 is further arranged in the outer shell 6-5, and the outer shell 6-5 and the inner ring 6-2 form a cavity 6-3.

[0133] A small hole 6-4 is further arranged on the inner ring 6-2.

[0134] One second mixing inlet 6-1 is connected with the first liquid inlet unit 2, and the other two second mixing inlets 6-1 are connected with the second liquid inlet unit 5. After the mixed liquid enters the cavity 6-3 formed by the inner surface of the outer shell 6-5 and the inner ring 6-2, it is injected at a full angle through the small hole 6-4 and flows to the rear end of the mixer. The rear end of the mixer is a uniform mixing device, and the inside is a static mixer. The three injected medicaments can be fully and uniformly mixed and then output, and the output is connected with the fire extinguishing medium releasing device.

[0135] The steps of the multi-dose proportion mixing method are realized by using the above portable multi-dose proportion mixing device.

[0136] S1, realization of multi-dose mixing

[0137] The first liquid inlet unit 2 is connected with the first medicament storage tank. After the water source enters the first liquid inlet unit 2, the first medicament is sucked in through the negative pressure type foam suction device according to the set proportion, and the water and the first medicament are fully mixed in the first mixer 4.

[0138] The second liquid inlet unit 5 is connected with the same or different medicament storage tanks. The engine 5-1 drives the special plunger pump 5-3 to rotate through the transmission shaft, sucks in the medicament, and then enters the second mixer 6 to mix with the mixed liquid injected by the first mixer 4.

[0139] The proportion and amount of the first medicament and the medicament output by the second liquid inlet unit 5 can be adjusted by adjusting the rotating speed of the engine 5-1 and the amount of the water source.

[0140] S2, realization of proportion adjustment

[0141] The special plunger pump 5-3 is symmetrically distributed on both sides, and the same side is divided into single plunger connection and double plunger connection. The output cavities 5-3-6 of the single plunger connection and the double plunger can control whether to output the medicament through the shunt pipeline 5-6.

[0142] Further increasing the control mode can generate foam,

[0143] In S1, compressed gas can also be injected into the first mixer 4 for mixing and foaming. The mixed foam mixed liquid enters the second mixer 6.

[0144] Three different medicaments can also be mixed;

[0145] In S2, the second unit can be connected with two different medicament storage tanks, and the special plunger pump 5-3 can suck in different medicaments on the symmetric two sides to realize the proportion mixing of three medicaments.

[0146] The amount proportion of the two medicaments sucked in by the second liquid inlet unit 5 can be adjusted by adjusting the three-way of the shunt pipeline 5-6.

[0147] Adjusting the second three-way valve 5-6-4 can realize the output or reflux of one dose of medicament;

[0148] Adjusting the first three-way valve 5-6-1 can realize the output or reflux of two doses of medicament.

[0149] Adjusting the communication relationship of the three ports of the three-way valve can realize the control of whether the medicament pumped by the special plunger pump is output or refluxed.

[0150] The output refers to outputting the medicament to the second mixer 6, and the reflux refers to refluxing the medicament to the suction chamber 5-3-7 of the special plunger pump 5-3;

[0151] By different settings of the shunt pipelines 5-6 on both sides of the special plunger pump 5-3, the supply amount and proportion of the medicament can be changed.

[0152] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0153] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A portable multi-dose proportion mixing device, characterized in that: It includes a liquid inlet, a first liquid inlet unit, a first mixer, a second liquid inlet unit and a second mixer; The liquid inlet is connected to an external water supply fire truck or a fire hydrant, and a control valve is provided on the pipeline of the liquid inlet; The first liquid inlet unit has two ends connected to the liquid inlet and the first mixer respectively, and the first liquid inlet unit is used to provide the first medicine; The first mixer is connected to the first liquid inlet unit and the second mixer respectively to complete the mixing of the first agent and water and output the mixture to the second mixer; The second liquid inlet unit can inhale the same medicine or different medicines and output them to the second mixer; When the second liquid inlet unit absorbs different medicines, the ratio of different medicines can be adjusted; The second mixer mixes the liquid output from the first mixer and the liquid output from the second liquid inlet unit, and finally outputs the mixed liquid to the connected medium release device; The second liquid inlet unit includes an engine, a transmission component, a special plunger pump, a second liquid inlet, a third liquid inlet, an injection pipeline and a diversion pipeline; The special plunger pump draws two different agents, namely the second agent and the third agent, respectively, and controls the ratio of the two agents output through the connected diversion pipeline; There are two liquid inlets connected to both sides of the special plunger pump, namely the second liquid inlet and the third liquid inlet, and the second liquid inlet and the third liquid inlet are respectively connected to the storage tanks for storing the second and third medicines; The second liquid inlet and the third liquid inlet are both provided with a one-way valve; The special plunger pump is provided with three plungers on both sides, namely the first plunger, the second plunger and the third plunger, and the plungers are isolated from each other by partition components; The three plungers provided on both sides are connected to the central rotating shaft; Each plunger is connected to an output chamber and a suction chamber; The suction chamber is used to connect to the second liquid inlet or the third liquid inlet; The output cavity is used to connect the shunt pipeline; The shunt pipeline is connected to a special plunger pump and is used to control the amount of medicine output from one side of the special plunger pump to the second mixer; There are two sets of diversion pipelines, which are connected to the output chambers on both sides of the special plunger pump respectively; The diversion pipeline includes a first three-way valve, a first reflux check valve, a first discharge check valve, a second three-way valve, a second reflux check valve and a second discharge check valve; The output chamber of the first plunger is connected to one end of the second three-way valve, the other two ends of the second three-way valve are respectively connected to the second reflux check valve and the second discharge check valve, the second reflux check valve is connected to the check valve of the liquid inlet, and the second discharge check valve is connected to the second mixer; The output chambers of the second and third plungers are connected to one end of the first three-way valve, and the other two ends of the first three-way valve are respectively connected to the first reflux check valve and the first discharge check valve, the first reflux check valve is connected to the check valve at the liquid inlet, and the first discharge check valve is connected to the second mixer; The second discharge one-way valve on the same side of the special plunger pump is connected to the output end of the first discharge one-way valve.

2. The portable multi-dose proportion mixing device according to claim 1, characterized in that: The first liquid inlet unit includes a first liquid inlet, a first one-way valve and a negative pressure foam suction pipe; The input end of the negative pressure foam suction pipe is connected to the liquid inlet, and the output end is connected to the first mixer; The negative pressure foam suction pipe is connected to a storage tank for supplying a first agent through a first liquid inlet, and a first one-way valve is provided on the first liquid inlet; The first mixer includes a first mixing inlet and a first mixing outlet; The first mixing inlet is connected to the output end of the first liquid inlet unit; The first mixing outlet is connected to the second mixer.

3. The portable multi-dose proportion mixing device according to claim 2, characterized in that: The engine provides power to the second liquid inlet unit and controls the amount of the inhaled medicine by adjusting the speed, and controls the usage ratio of the medicine inhaled by the second liquid inlet unit to the first medicine by controlling the amount of the inhaled medicine; The engine is connected to a transmission component, which outputs power to a special plunger pump; The ratios of the two agents that can be adjusted include 1:3, 1:2, 1:1, 2:3, 2:2, 3:2, 2:1, 3:1, and 3:

3.

4. The portable multi-dose proportion mixing device according to claim 3, characterized in that: The second mixer includes a second mixing inlet, an inner ring, a cavity, a small hole, an outer shell and a flange; The second mixer has a housing that is generally cylindrical; A flange is provided on one section of the housing; Three second mixing inlets are provided on the outer circumference of the housing, spaced 120 degrees apart; One of the three second mixing inlets is connected to the first mixing outlet, another is connected to the second discharge one-way valve on one side of the special plunger pump and the output end of the first discharge one-way valve, and the third is connected to the second discharge one-way valve on the other side of the special plunger pump and the output end of the first discharge one-way valve; An inner ring is also provided in the outer shell, and the outer shell and the inner ring form a cavity; Small holes are also provided on the inner ring.

5. The portable multi-dose proportion mixing device according to claim 4, characterized in that: The mixing device also includes an air intake unit, which is connected to the first mixer. The air intake unit includes an air source to supply the configuration gas required for mixing; the first mixer completes the mixing of the first agent, water and the configuration gas, and outputs it to the second mixer; the first mixer also includes a gas injection port, which is connected to the air intake unit.

6. A method for achieving portable multi-dose proportional mixing using the portable multi-dose proportional mixing device according to any one of claims 1 to 5, characterized in that: The steps include, S1, multi-dose mixing; The first liquid inlet unit is connected to the first agent storage tank. After the water source enters the first liquid inlet unit, the first agent is sucked in according to the set ratio through the negative pressure foam suction device, and the water and the first agent are fully mixed in the first mixer; The second liquid inlet unit is connected to the same or different pharmaceutical storage tank. The engine drives the special plunger pump through the transmission shaft to rotate, sucking the pharmaceutical into the second mixer and mixing it with the mixed liquid injected by the first mixer. The ratio and amount of the first agent and the second liquid inlet unit output agent are adjusted by adjusting the engine speed and the amount of water source; S2, scale adjustment; The special plunger pump is symmetrically distributed on both sides, and the same side is divided into single plunger connection and double plunger connection. The output chambers of single plunger connection and double plunger connection are controlled by shunt pipelines to control whether to output the medicine.

7. The portable multi-dose proportion mixing method according to claim 6, characterized in that: In S1, foam is generated; Compressed gas is also injected into the first mixer for mixing and foaming, and the mixed foam mixture enters the second mixer.

8. The portable multi-dose proportion mixing method according to claim 6, characterized in that: In S2, the proportion of three different agents is mixed; The second liquid inlet unit is connected to two different reagent storage tanks, and a special plunger pump symmetrically draws different reagents on both sides to achieve proportional mixing of the three reagents; By adjusting the tee of the diversion pipeline, the dosage ratio of the two drugs sucked into the second liquid inlet unit is adjusted; Adjust the second three-way valve to achieve the output or backflow of a portion of the medicine; Adjust the first three-way valve to achieve the output or backflow of two doses of medicine; Output refers to outputting the medicine to the second mixer, and reflux refers to returning the medicine to the suction chamber of the special plunger pump; The supply volume and proportion of the medicine can be changed by different settings of the diversion pipelines on both sides of the special plunger pump.

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