CN219222418U

CN219222418U - Gas-liquid mixed fuel feeding system

Info

Publication number: CN219222418U
Application number: CN202223313642.6U
Authority: CN
Inventors: 刘贻立
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-06-20
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a gas-liquid mixed fuel feeding system, which comprises a burner assembly; the premixing device is connected with the burner assembly and is used for mixing gas and liquid to form gas-liquid mixed fuel; the oxyhydrogen gas generating device is connected with one port of the premixing device through a first pipeline, and a first conveying assembly, a first flow control assembly and a second conveying assembly are respectively arranged on the first pipeline in sequence; the alcohol-based fuel supply device is connected with the other port of the premixing device through a second pipeline, and a third conveying assembly, a filtering assembly and a fourth conveying assembly are sequentially arranged on the second pipeline respectively. The utility model adopts the oxyhydrogen gas combustion-supporting mode, which not only can reduce the emission of nitride, but also improves the combustion utilization rate of alcohol-based fuel, thereby saving fuel.

Description

Gas-liquid mixed fuel feeding system

Technical Field

The utility model relates to the technical field of feeding systems of combustion devices, in particular to a gas-liquid mixed fuel feeding system.

Background

With the development of economy and the continuous improvement of living standard, the problem of environmental pollution has attracted more and more widespread attention, and the development of clean fuel has become a hot spot of current research. Alcohol-based fuel is widely popularized in various circles because of low price as an environment-friendly clean energy source.

Alcohol-based fuels, however, often make it difficult to burn sufficiently, so that they can burn sufficiently, thus requiring a large amount of air to be blown in. However, excessive air is input, and heat in the hearth can be taken away when the air is discharged from the air outlet, so that the temperature of the hearth of the industrial kiln can be reduced, and meanwhile, the generation of nitrogen oxides can be increased when the air is excessively added. Therefore, the combustion supporting mode of the alcohol-based fuel by introducing air is difficult to achieve an ideal combustion state, so that the fuel waste generated by low combustion utilization rate of the alcohol-based fuel is serious.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a feeding system for improving the combustion utilization rate of an alcohol-based material.

According to an embodiment of the first aspect of the utility model, a gas-liquid mixed fuel feeding system comprises a burner assembly; the premixing device is connected with the burner assembly and is used for mixing gas and liquid to form gas-liquid mixed fuel; the oxyhydrogen gas generating device is connected with one port of the premixing device through a first pipeline, a first conveying assembly, a first flow control assembly and a second conveying assembly are sequentially arranged on the first pipeline respectively, the first conveying assembly is used for filtering oxyhydrogen gas generated by the oxyhydrogen gas generating device and conveying the oxyhydrogen gas to the first flow control assembly through the first pipeline, the first flow control assembly is used for controlling conveying amount of the oxyhydrogen gas, and the second conveying assembly is used for conveying the oxyhydrogen gas generated by the oxyhydrogen gas generating device to the premixing device through the first pipeline; the alcohol-based fuel supply device is connected with the other port of the premixing device through a second pipeline, a third conveying component, a filtering component and a fourth conveying component are sequentially arranged on the second pipeline respectively, the third conveying component is used for controlling the conveying amount of the alcohol-based fuel generated by the alcohol-based fuel supply device and conveying the alcohol-based fuel to the filtering component through the second pipeline, the filtering component is used for filtering the alcohol-based fuel, and the fourth conveying component is used for controlling the conveying amount of the alcohol-based fuel filtered by the filtering component and conveying the alcohol-based fuel to the premixing device through the second pipeline.

According to the embodiment of the utility model, the gas-liquid mixed fuel feeding system has at least the following technical effects: through setting up the oxyhydrogen gas generating device and connecting oxyhydrogen gas supply device respectively at premixing device both ends, through setting up first conveying component on first pipeline, first flow control component and second conveying component for oxyhydrogen gas is from oxyhydrogen gas generating device quantitative transport to in premixing device, through setting up third conveying component on the second pipeline, filter unit and fourth conveying component, make the alcohol-based fuel quantitatively carry to premixing device from alcohol-based fuel supply device in, make oxyhydrogen gas and alcohol-based fuel carry out the mixture in premixing device according to the proportion, the gas-liquid mixture fuel is carried to the burner subassembly through the other end of premixing device again, adopt the combustion-supporting mode of oxyhydrogen gas not only can reduce the emission of nitride, and improve the combustion utilization ratio of alcohol-based fuel, thereby save the fuel.

According to some embodiments of the utility model, the premixing device is provided with a first conveying pipeline, a second conveying pipeline, a premixing cavity and an output pipeline, wherein the premixing cavity is respectively communicated with the first conveying pipeline, the second conveying pipeline and the output pipeline, the first conveying pipeline is connected with the fourth conveying assembly, the second conveying pipeline is connected with the second conveying assembly, and the premixing cavity is used for mixing oxyhydrogen gas and alcohol-based fuel to form gas-liquid mixed fuel.

According to some embodiments of the utility model, further comprising an alcohol-based fuel reserve and a return line, the alcohol-based fuel reserve being connected to the alcohol-based fuel supply, the return line and the third delivery assembly, respectively.

According to some embodiments of the utility model, the third delivery assembly is connected to the alcohol-based fuel supply, the third delivery assembly comprising a first manual ball valve, a first delivery pump, a first check valve, and a first solenoid valve connected in sequence along the delivery direction of the alcohol-based fuel.

According to some embodiments of the utility model, the filter assembly comprises a second manual ball valve, an alcohol-based fuel filter and a flow meter connected in sequence along the alcohol-based fuel delivery direction, the second manual ball valve being connected with the first solenoid valve.

According to some embodiments of the utility model, the fourth delivery assembly is connected to the premixing device and the first pressure stabilizing tube, respectively, and comprises a first manual stop valve, a second electromagnetic valve, a second manual stop valve, a second delivery pump, a third manual stop valve, a second check valve, a third manual ball valve and a first plug valve which are sequentially connected along the delivery direction of the alcohol-based fuel, and the first manual stop valve is connected to the second manual ball valve.

According to some embodiments of the utility model, the fourth delivery assembly is connected to the premixing device, the return pipe and the first pressure stabilizing pipe respectively, the fourth delivery assembly comprises a first manual stop valve, a second electromagnetic valve, a second manual stop valve, a second delivery pump, a third manual stop valve, a second check valve, a third manual ball valve and a first plug valve which are sequentially connected along the delivery direction of the alcohol-based fuel, and the first manual stop valve is connected to the second manual ball valve.

According to some embodiments of the utility model, the fourth delivery assembly is connected to the premixing device, the return pipe and the first pressure stabilizing pipe respectively, and comprises a fourth manual stop valve, a third electromagnetic valve, a first proportional valve, a fourth manual ball valve and a second plug valve which are sequentially connected along the delivery direction of the alcohol-based fuel, wherein the fourth manual stop valve is connected with the second manual ball valve.

According to some embodiments of the utility model, the first flow control assembly comprises a sixth manual shut-off valve, a fourth one-way valve, a second proportional valve, and a second flame arrestor connected in sequence along the direction of oxyhydrogen gas delivery, the sixth manual shut-off valve being connected to the first flame arrestor.

According to some embodiments of the utility model, the second delivery assembly is connected to the premixing device and the second pressure stabilizing tube, respectively, and the second delivery assembly includes a fifth manual ball valve, an anti-backfire device, and a fifth one-way valve sequentially connected along the hydrogen fuel delivery direction, and the fifth one-way valve is connected to the second flame arrester.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a gas-liquid fuel feeding system according to an embodiment of the present utility model;

FIG. 2 is another operational state diagram of the gas-liquid fuel feed system of FIG. 1;

FIG. 3 is a schematic diagram of a premixing device;

FIG. 4 is a cross-sectional view of the structure of the premixing device.

Reference numerals:

burner assembly 100;

a premixing device 200, a first delivery conduit 210, a second delivery conduit 220, a premixing chamber 230, and an output conduit 240;

the oxyhydrogen gas generating apparatus 300, the fifth manual shutoff valve 310, the gas filter 311, the third check valve 312, the first flame arrester 313, the sixth manual shutoff valve 320, the fourth check valve 321, the second proportional valve 322, the second flame arrester 323, the second pressure stabilizing pipe 330, the fifth manual ball valve 331, the anti-backfire device 332, and the fifth check valve 333;

the alcohol-based fuel supply apparatus 400, the first manual ball valve 410, the first transfer pump 411, the first check valve 412, the first solenoid valve 413, the second manual ball valve 420, the alcohol-based fuel filter 421, the flow meter 422, the first manual shut-off valve 430, the second solenoid valve 431, the second manual shut-off valve 432, the second transfer pump 433, the third manual shut-off valve 434, the second check valve 435, the third manual ball valve 436, the first plug valve 437, the fourth manual shut-off valve 440, the third solenoid valve 441, the first proportional valve 442, the fourth manual ball valve 443, the second plug valve 444;

alcohol-based fuel reservoir 500, return line 510;

a first pipe 600, a second pipe 610, and a first regulator 620.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Referring to fig. 1 to 4, a gas-liquid mixed fuel supply system according to an embodiment of the present utility model includes a burner assembly 100, a premixing device 200, an oxyhydrogen gas generating device 300, and an alcohol-based fuel supply device 400. As shown in fig. 1, the burner assembly 100 is used for burning the gas-liquid mixed fuel mixed by the premixing device 200 to generate flame, the burner assembly 100 can be configured into a plurality of burner assemblies 100 according to the size of the industrial kiln, and each burner assembly 100 is respectively connected with the oxyhydrogen gas generating device 300 and the alcohol-based fuel supply device 400, thereby improving the working efficiency of the industrial kiln. As shown in fig. 3 and 4, each burner assembly 100 is provided with a premixing device 200, and the premixing device 200 is used to mix gas and liquid to form a gas-liquid mixed fuel. The premixing device 200 may be provided with three ports, a first delivery conduit 210 port, a second delivery conduit 220 port, and an output conduit 240 port, respectively, wherein the output conduit 240 port is connected to the burner assembly 100. As shown in fig. 1, the oxyhydrogen gas generating apparatus 300 includes an apparatus for obtaining an oxyhydrogen mixed gas by a process route of electrolysis of water, methanol cracking reforming, natural gas cracking, and the like. The oxyhydrogen gas generating apparatus 300 is connected to a port of the first conveying pipeline 210 through a first pipeline 600, and the first pipeline 600 is sequentially provided with a first conveying assembly, a first flow control assembly and a second conveying assembly, wherein the first conveying assembly is used for filtering impurities on oxyhydrogen gas generated by the oxyhydrogen gas generating apparatus 300, thereby improving purity of the oxyhydrogen gas. The first flow control assembly is configured to control the output of oxyhydrogen gas delivered via the first delivery assembly such that oxyhydrogen gas can be quantitatively delivered into the premixing device, and the second delivery assembly is configured to deliver oxyhydrogen gas within the first flow control assembly into the premixing device via the first conduit 600. As shown in fig. 1, the alcohol-based fuel includes a fuel mainly composed of alcohols such as methanol, ethanol, butanol, etc., and exists mainly in a liquid or solid form. The alcohol-based fuel supply apparatus 400 is connected to the port of the second delivery pipe 220 through a second pipe 610, and a third delivery assembly, a filter assembly and a fourth delivery assembly are sequentially provided on the second pipe 610, respectively. The third delivery assembly is used to control the delivery of the alcohol-based fuel produced by the alcohol-based fuel supply 400 and deliver the alcohol-based fuel to the filter assembly via the second conduit 610. The filter assembly is used for filtering impurities in the alcohol-based fuel to improve the purity of the alcohol-based fuel, the fourth conveying assembly is used for controlling the conveying amount of the alcohol-based fuel on the filter assembly and conveying the alcohol-based fuel to the premixing device through the second pipeline 610, and the accuracy of controlling the conveying amount of the alcohol-based fuel by arranging the third conveying assembly and the fourth conveying assembly is improved. Therefore, the utility model has the characteristics of strong adaptability and practicability, and the mixed fuel of the alcohol-based fuel and the oxyhydrogen gas is conveyed to the burner assembly 100 by adopting a pipeline connection mode, so that the combustion utilization rate of the alcohol-based fuel is improved, and the fuel is saved. Since the products of combustion of oxyhydrogen gas are water and carbon dioxide, the generation of nitrides can be reduced, thereby reducing the generation of exhaust gas to protect the environment. Besides being applied to industrial kilns, the method can also be applied to application scenes such as a plurality of stoves for commercial catering.

In some embodiments of the present utility model, as shown in fig. 3 and 4, the premixing device 200 is provided with a first transfer duct 210, a second transfer duct 220, a premixing chamber 230, and an output duct 240, and the premixing chamber 230 communicates with the first transfer duct 210, the second transfer duct 220, and the output duct 240, respectively. The first delivery pipe 210 is connected to the fourth delivery assembly, and the first delivery pipe 210 is used to deliver the alcohol-based fuel into the premix chamber 230. The second delivery conduit 220 is connected to the second delivery assembly, and the second delivery conduit 220 is configured to deliver oxyhydrogen gas into the premix chamber 230. The oxyhydrogen gas and the alcohol-based fuel are delivered to premix chamber 230 to be mixed to form a gas-liquid mixed fuel, and then delivered to the nozzle assembly through output pipe 240. By providing the premixing device 200, the oxyhydrogen gas and the alcohol-based fuel are mixed and then combusted through the nozzle assembly to generate flame.

In a further embodiment of the present utility model, as shown in fig. 1 and 2, in order to improve the supply efficiency of the alcohol-based fuel, an alcohol-based fuel storage device 500 and a return pipe 510 are further included, one end of the alcohol-based fuel storage device 500 is connected to the alcohol-based fuel supply device 400, and the other end of the alcohol-based fuel storage device 500 is connected to the third delivery assembly. By providing alcohol-based fuel reservoir 500 in connection with return tube 510, a portion of the alcohol-based fuel in the third delivery assembly or fourth delivery assembly is received by return tube 510 and delivered to alcohol-based fuel reservoir 500, thereby relieving the pressure created between the various conduits. Specifically, return line 510 may be coupled to the first flow control assembly to receive a portion of the oxyhydrogen gas from the first flow control assembly or the first delivery assembly via return line 510 and return the portion to the first delivery assembly, thereby relieving pressure generated between the conduits.

In some embodiments of the present utility model, as shown in fig. 1, a third delivery assembly is connected to the alcohol-based fuel supply apparatus 400, the third delivery assembly including a first manual ball valve 410, a first delivery pump 411, a first check valve 412, and a first solenoid valve 413, the number of the first manual ball valves 410 may be set to be plural, preferably three. One end of a first manual ball valve 410 is connected with the alcohol-based fuel supply device 400, the other end of the first manual ball valve 410 is connected with a second first manual ball valve 410, the other end of the second first manual ball valve 410 is connected with a first delivery pump 411, the other end of the first delivery pump 411 is connected with a third first manual ball valve 410, one end of the third first manual ball valve 410 is connected with a first one-way valve 412, and the other end of the first one-way valve 412 is connected with a first electromagnetic valve 413. By providing a plurality of first manual ball valves 410, first transfer pumps 411, first check valves 412 and first solenoid valves 413, alcohol-based fuel is stably transferred into the filter assembly.

In a further embodiment of the present utility model, as shown in fig. 1, the filter assembly includes a second manual ball valve 420, an alcohol-based fuel filter 421, and a flow meter 422, and the second manual ball valve 420 may be provided in two, one end of the alcohol-based fuel filter 421 is connected to the first solenoid valve 413 through the first second manual ball valve 420, and the other end of the alcohol-based fuel filter 421 is connected to the second manual ball valve 420 through the flow meter 422. The alcohol-based fuel filter 421 can filter impurities on the alcohol-based fuel, thereby improving the purity of the alcohol-based fuel. By providing two first manual ball valves 410, an alcohol-based fuel filter 421, and a flow meter 422, the alcohol-based fuel is stably and quantitatively delivered into the fourth delivery assembly.

In some embodiments of the present utility model, as shown in FIG. 1, a fourth delivery assembly connects premix apparatus 200, return tube 510, and first pressure regulator 620, respectively. The fourth delivery assembly comprises a first manual stop valve 430, a second electromagnetic valve 431, a second manual stop valve 432, a second delivery pump 433, a third manual stop valve 434, a second one-way valve 435, a third manual ball valve 436 and a first plug valve 437, wherein one end of the first manual stop valve 430 is connected with the second manual ball valve 420, the other end of the first manual stop valve 430 is connected with the second electromagnetic valve 431, one end of the second delivery pump 433 is connected with the second electromagnetic valve 431 through the second manual stop valve 432, the second delivery pump 433 is connected with the second one-way valve 435 through the third manual stop valve 434, one end of the third manual ball valve 436 is connected with the second one-way valve 435, and the other end of the third manual ball valve 436 is connected with the plug valve. The second transfer pump 433 is used to drive the transfer of the alcohol-based fuel to improve the transfer efficiency of the alcohol-based fuel. By arranging the first manual stop valve 430, the second manual stop valve 432, the third manual stop valve 434, the second electromagnetic valve 431, the second delivery pump 433, the second one-way valve 435, the third manual ball valve 436 and the first plug valve 437, the alcohol-based fuel is partially directly delivered to the premixing device 200, and the other part flows back into the first pressure stabilizing tube 620 when the premixing device 200 is overflowed, so that the stability of the delivery of the alcohol-based fuel is improved. By providing a fourth delivery assembly in connection with return tube 510, alcohol-based fuel spilled from the fourth delivery assembly is allowed to flow back into alcohol-based fuel supply 400 via return tube 510, thereby relieving pressure in second conduit 610. Specifically, the first voltage stabilizing tubes 620 may be separately provided to connect two adjacent fourth conveying assemblies, or each fourth conveying assembly may be respectively and correspondingly connected to one first voltage stabilizing tube 620.

In a further embodiment of the present utility model, as shown in fig. 2, a fourth delivery assembly is connected to the premixing device 200, the first pressure stabilizing pipe 620 and the return pipe 510, respectively, the fourth delivery assembly includes a fourth manual shutoff valve 440, a third electromagnetic valve 441, a first proportional valve 442, a fourth manual ball valve 443 and a second plug valve 444, which are sequentially connected in the delivery direction of the alcohol-based fuel, and the fourth manual shutoff valve 440 is connected to the second manual ball valve 420. A seventh manual stop valve, a third proportional valve, and a sixth check valve are sequentially connected to the return pipe 510 in the alcohol-based fuel return direction, so that a part of the alcohol-based fuel is delivered into the alcohol-based fuel storage device 500. By using the first and third

proportional valves

442 and 442 as the packet flow power source, the piping structure of the fourth delivery assembly is simplified. The first pressure stabilizing tube 620 may be connected between two adjacent fourth conveying components, or one first pressure stabilizing tube 620 may be connected to one fourth conveying component, where the first pressure stabilizing tube 620 may temporarily store overflowed alcohol-based fuel to relieve the pipeline pressure of the second pipeline 610.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the first delivery assembly includes a fifth manual shut-off valve 310, a gas filter 311, a third check valve 312, and a first flame arrester 313, one end of the fifth manual shut-off valve 310 is connected to the oxyhydrogen gas generating apparatus 300, the other end of the fifth manual shut-off valve 310 is connected to the gas filter 311, and the gas filter 311 is connected to the third check valve 312. Impurities in the oxyhydrogen gas are filtered by providing the gas filter 311 to ensure purity of the oxyhydrogen gas, and stability of the oxyhydrogen gas to be delivered to the first flow control assembly is improved by providing the fifth manual cutoff valve 310 and the third check valve 312. By providing the first flame arrestor 313, the safety performance of the first duct 600 is improved. Specifically, a pressure gauge for measuring the air pressure of the first pipe 600 is further provided on the first pipe 600, and the pressure gauge is installed on the first pipe 600.

In a further embodiment of the utility model, as shown in FIG. 1, the first flow control assembly is coupled to the first delivery assembly via a second flame arrestor 323, and the safety of the feed system is enhanced by providing a second flame arrestor 323. In order to improve the stability of oxyhydrogen gas delivery, the first flow control assembly comprises a sixth manual stop valve 320, a fourth one-way valve 321 and a second proportional valve 322, one end of the sixth manual stop valve 320 is connected with the first flame arrester 313, the other end of the sixth manual stop valve 320 is connected with the fourth one-way valve 321, and the second proportional valve 322 is connected with the fourth one-way valve 321.

In some embodiments of the present utility model, as shown in fig. 1, a second conveying assembly is respectively connected to the premixing device 200 and the second pressure stabilizing tube 330, the second conveying assembly includes a fifth manual ball valve 331, an anti-backfire 332 and a fifth check valve 333, one end of the fifth manual ball valve 331 is connected to the second proportional valve 322, the other end of the fifth manual ball valve 331 is connected to the anti-backfire 332, the anti-backfire 332 is connected to the fifth check valve 333, and the safety performance of the feeding system is improved by providing the anti-backfire 332. The second pressure stabilizing tube 330 may be connected between two adjacent second conveying components, or one second pressure stabilizing tube 330 may be connected to one second conveying component, where the second pressure stabilizing tube 330 is used to temporarily store the overflowed oxyhydrogen gas, so as to reduce the conveying pressure of the first pipeline 600.

In the description of the present specification, reference to the term "some embodiments" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A gas-liquid fuel mixture feed system, comprising:

a burner assembly (100);

a premixing device (200), the premixing device (200) being connected to the burner assembly (100), the premixing device (200) being for mixing a gas and a liquid to form a gas-liquid mixed fuel;

the oxyhydrogen gas generating device (300), the oxyhydrogen gas generating device (300) is connected with one port of the premixing device (200) through a first pipeline (600), a first conveying component, a first flow control component and a second conveying component are sequentially arranged on the first pipeline (600), the first conveying component is used for filtering oxyhydrogen gas generated by the oxyhydrogen gas generating device (300) and conveying the oxyhydrogen gas to the first flow control component through the first pipeline (600), the first flow control component is used for controlling the conveying amount of the oxyhydrogen gas, and the second conveying component is used for conveying the oxyhydrogen gas generated by the oxyhydrogen gas generating device (300) to the premixing device (200) through the first pipeline (600);

the alcohol-based fuel supply device (400), the alcohol-based fuel supply device (400) is connected with the other port of the premixing device (200) through a second pipeline (610), a third conveying component, a filtering component and a fourth conveying component are sequentially arranged on the second pipeline (610), the third conveying component is used for controlling the conveying amount of the alcohol-based fuel generated by the alcohol-based fuel supply device (400) and conveying the alcohol-based fuel to the filtering component through the second pipeline (610), the filtering component is used for filtering the alcohol-based fuel, and the fourth conveying component is used for controlling the conveying amount of the alcohol-based fuel filtered through the filtering component and conveying the alcohol-based fuel to the premixing device (200) through the second pipeline (610).

2. A gas-liquid fuel feed system as set forth in claim 1, wherein: the premixing device (200) is provided with a first conveying pipeline (210), a second conveying pipeline (220), a premixing cavity (230) and an output pipeline (240), the premixing cavity (230) is respectively communicated with the first conveying pipeline (210), the second conveying pipeline (220) and the output pipeline (240), the first conveying pipeline (210) is connected with the fourth conveying assembly, the second conveying pipeline (220) is connected with the second conveying assembly, and the premixing cavity (230) is used for mixing oxyhydrogen gas and alcohol-based fuel to form gas-liquid mixed fuel.

3. A gas-liquid fuel feed system as set forth in claim 1, wherein: further comprising an alcohol-based fuel reservoir (500) and a return line (510), the alcohol-based fuel reservoir (500) being connected to the alcohol-based fuel supply (400), the return line (510) and the third delivery assembly, respectively.

4. A gas-liquid fuel feed system as set forth in claim 3, wherein: the third conveying assembly is connected with the alcohol-based fuel supply device (400), and comprises a first manual ball valve (410), a first conveying pump (411), a first one-way valve (412) and a first electromagnetic valve (413) which are sequentially connected along the conveying direction of the alcohol-based fuel.

5. A gas-liquid fuel feed system as set forth in claim 4, wherein: the filtering assembly comprises a second manual ball valve (420), an alcohol-based fuel filter (421) and a flowmeter (422) which are sequentially connected along the conveying direction of the alcohol-based fuel, and the second manual ball valve (420) is connected with the first electromagnetic valve (413).

6. A gas-liquid fuel feed system as set forth in claim 5, wherein: the fourth conveying assembly is respectively connected with the premixing device (200), the return pipe (510) and the first pressure stabilizing pipe (620), the fourth conveying assembly comprises a first manual stop valve (430), a second electromagnetic valve (431), a second manual stop valve (432), a second conveying pump (433), a third manual stop valve (434), a second check valve (435), a third manual ball valve (436) and a first plug valve (437), which are sequentially connected along the conveying direction of the alcohol-based fuel, and the first manual stop valve (430) is connected with the second manual ball valve (420).

7. A gas-liquid fuel feed system as set forth in claim 5, wherein: the fourth conveying assembly is respectively connected with the premixing device (200), the return pipe (510) and the first pressure stabilizing pipe (620), the fourth conveying assembly comprises a fourth manual stop valve (440), a third electromagnetic valve (441), a first proportional valve (442), a fourth manual ball valve (443) and a second plug valve (444), which are sequentially connected along the conveying direction of the alcohol-based fuel, and the fourth manual stop valve (440) is connected with the second manual ball valve (420).

8. A gas-liquid fuel feed system as set forth in claim 1, wherein: the first conveying assembly comprises a fifth manual stop valve (310), a gas filter (311), a third one-way valve (312) and a first flame arrester (313) which are sequentially connected along the conveying direction of oxyhydrogen gas, and the fifth manual stop valve (310) is connected with the oxyhydrogen gas generating device (300).

9. A gas-liquid fuel feed system as set forth in claim 8, wherein: the first flow control assembly comprises a sixth manual stop valve (320), a fourth one-way valve (321), a second proportional valve (322) and a second flame arrester (323) which are sequentially connected along the conveying direction of oxyhydrogen gas, and the sixth manual stop valve (320) is connected with the first flame arrester (313).

10. A gas-liquid fuel feed system as set forth in claim 9, wherein: the second conveying assembly is respectively connected with the premixing device (200) and the second pressure stabilizing tube (330), and comprises a fifth manual ball valve (331), an anti-backfire device (332) and a fifth one-way valve (333) which are sequentially connected along the conveying direction of hydrogen fuel, and the fifth one-way valve (333) is connected with the second flame arrester (323).