Alcohol-based liquid fuel stove combustion system based on anti-cavitation rotor pump structure

Abstract

The invention relates to the technical field of stove combustion systems, and discloses an alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure, which comprises a fuel tank, the fuel tank is communicated with a rotor pump through a liquid inlet pipe, an outlet of the rotor pump is communicated with a one-way valve, the one-way valve is connected with a backflow mechanism, and the backflow mechanism is connected with a gas inlet pipe. And the backflow mechanism is connected with the turnover tank through a liquid outlet pipe. The alcohol-based liquid fuel stove combustion system based on the anti-cavitation rotor pump structure can effectively solve the problems that in the prior art, after a rotor pump is used and shut down every time, liquid fuel in an outlet pipeline of the rotor pump can flow back to a pump cavity under the action of gravity but cannot fully fill the pump cavity, so that part of the cavity is occupied by air; and when the rotor pump is started next time, the flow of fuel extracted in the initial stage of the rotor pump fluctuates, and if the fluctuation is serious, the rotor may idle, the pump body is quickly worn, and the service life of the pump body is shortened.

Description

Technical Field

[0001] This invention relates to the field of stove combustion system technology, and specifically to an alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure. Background Technology

[0002] Alcohol-based stove combustion systems are stove systems centered around alcohol-based liquid fuels (such as methanol and ethanol blends). Compared to conventional natural gas and liquefied petroleum gas stoves, their combustion products are mainly carbon dioxide and water, with no emissions of pollutants such as sulfides and particulate matter, aligning with environmental protection policies. Their pollution emission levels are far lower than those of coal-fired and oil-fired stoves. This system not only boasts lower overall operating costs and the core advantages of high environmental friendliness and low cost, but also benefits from the high flash point and low volatility of alcohol-based fuels, resulting in superior safety.

[0003] Alcohol-based stove combustion systems still have certain drawbacks in practical applications. After each use and shutdown, the liquid fuel in the rotor pump outlet pipe flows back into the pump chamber under gravity, failing to completely fill the chamber and causing some chambers to be occupied by air. Simultaneously, system pressure fluctuations during shutdown cause dissolved gases to escape, forming bubbles that remain inside the pump. Upon restarting, the initial fuel flow rate drawn by the rotor pump will fluctuate, potentially leading to rotor idling, rapid pump wear, and a shortened service life. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides an alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure. This system effectively solves the problems in existing technologies where, after each use and shutdown of the rotor pump, the liquid fuel in its outlet pipe flows back into the pump chamber under gravity, failing to fully fill the chamber and causing some chambers to be occupied by air. Simultaneously, system pressure fluctuations during shutdown cause dissolved gases to escape, forming bubbles that remain inside the pump. Furthermore, upon restarting, the initial fuel flow rate pumped by the rotor pump fluctuates, potentially leading to rotor idling, rapid pump wear, and shortened service life.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides an alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure, comprising:

[0007] The fuel tank is connected to the rotor pump via an inlet pipe equipped with a check valve. The outlet of the rotor pump is connected to a one-way valve, and a reflux mechanism is connected to the one-way valve. The reflux mechanism is connected to the transfer tank via an outlet pipe.

[0008] The rotor pump includes a pump body, in which two rotors with shapes adapted to the pump cavity are rotatably arranged. The rotating shafts of the two rotors are respectively fixedly fitted with meshing synchronous gears. A drive unit that rotates the rotating shafts is connected to the pump body. An opening and closing component for controlling the liquid inflow and outflow in the reflux mechanism is provided at the lower end of the pump cavity.

[0009] Furthermore, the reflux mechanism includes a three-way pipe, one of the straight ports of which is connected to the outlet of a one-way valve, the other straight port of which is connected to the liquid outlet pipe via a bellows, and the branch port of which is connected to the pump chamber of the rotor pump via a reflux pipe.

[0010] Furthermore, a valve stem is fixedly connected to the valve core of the one-way valve. The other end of the valve stem adopts an elastic and telescopic design and extends through the tee pipe into the bellows, and is fixedly connected to the end of the bellows away from the tee pipe by a connector.

[0011] Furthermore, a slip ring is slidably connected in the three-way pipe, and a return port corresponding to the branch port of the three-way pipe is opened on the slip ring. Push blocks are fixedly connected to both sides of the slip ring on the valve stem.

[0012] Furthermore, the return pipe is connected to the bottom end of the pump body, and a sludge collection bottle is detachably connected to the horizontal section of the return pipe.

[0013] Furthermore, the opening and closing assembly includes an arc-shaped plate, which is slidably connected to the bottom end of the pump body via an arc-shaped groove. A through groove is formed through the arc-shaped plate, and a through hole corresponding to the through groove is formed at the bottom of the pump cavity.

[0014] Furthermore, a trigger block is fixedly connected to the lower arc surface of the arc plate, and the trigger block is set in the arc groove by a reset spring.

[0015] The technical solution provided by this invention has the following advantages compared with the prior art:

[0016] 1. In this invention, when the system shuts down, the one-way valve quickly closes to block the reverse flow of fuel, while the return mechanism opens. The pressure difference generated by the folding of the bellows draws residual fuel in the outlet pipe back into the pump chamber. In conjunction with the sliding motion of the arc-shaped plate in the opening and closing assembly due to the hydraulic pressure difference, the through groove and through hole are aligned, allowing the fuel to completely fill the pump chamber, preventing air retention and residual bubbles. Upon the next startup, the rotor pump can directly draw a full chamber of fuel, completely solving the problems of flow fluctuations and rotor idling during the initial startup of traditional systems, and significantly reducing pump wear.

[0017] 2. In the operation of the system in this invention, the drive unit drives the rotor to rotate via the rotating shaft. The synchronous gears on the two rotating shafts mesh precisely, achieving synchronous reverse rotation of the rotors and forming a stable gas pressure difference. At this time, the one-way valve opens, and the slip ring in the return mechanism is pushed by the valve stem push block, causing the return port to be misaligned and closed with the branch port of the three-way pipe. Fuel is stably delivered to the transfer tank along the pump chamber, the three-way pipe, and the liquid outlet pipe. The meshing transmission of the synchronous gears and the one-way conduction design of the one-way valve ensure continuous and stable fuel delivery, improving gasification efficiency and subsequent combustion effect.

[0018] 3. In this invention, after the system is shut down, the corrugated pipe folds to absorb the residual alcohol-based liquid fuel in the outlet pipe, and returns it to the pump chamber through the return pipe, avoiding waste caused by residual fuel deposition and deterioration. At the same time, the detachable collection bottle in the horizontal section of the return pipe can trap impurities that may be contained in the fuel, preventing impurities from entering the pump chamber and aggravating wear, facilitating regular cleaning, reducing pipeline contamination, and ensuring the purity of fuel delivery. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the rotor pump, check valve, and reflux mechanism according to an embodiment of the present invention;

[0022] Figure 3 This is an exploded structural diagram of the rotor pump, check valve, and reflux mechanism according to an embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of the one-way valve and the reflux mechanism according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the separation structure of the one-way valve and the reflux mechanism in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the planar structure of the rotor pump, check valve, and reflux mechanism according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the opening and closing component according to an embodiment of the present invention.

[0027] The labels in the diagram represent: 1. Fuel tank; 2. Inlet pipe; 3. Rotary pump; 31. Pump body; 32. Rotor; 33. Shaft; 34. Synchronous gear; 35. Drive unit; 36. Opening and closing assembly; 361. Arc plate; 362. Through groove; 363. Through hole; 364. Trigger block; 365. Return spring; 4. Check valve; 41. Valve core; 42. Valve stem; 5. Return mechanism; 51. T-connector; 52. Return pipe; 53. Bellows; 54. Connector; 55. Slip ring; 551. Return port; 56. Push block; 57. Sludge collection bottle; 6. Outlet pipe; 7. Transfer tank. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] The present invention will be further described below with reference to embodiments.

[0030] Example:

[0031] Please see Figure 1 - Figure 7 This invention provides a technical solution: a combustion system for an alcohol-based liquid fuel stove based on an anti-cavitation rotor pump structure, comprising:

[0032] Fuel tank 1, the fuel tank 1 is connected to rotor pump 3 through inlet pipe 2 with internal check valve, the outlet of rotor pump 3 is connected to one-way valve 4, the one-way valve 4 is connected to reflux mechanism 5, the reflux mechanism 5 is connected to turnover tank 7 through outlet pipe 6;

[0033] The rotor pump 3 includes a pump body 31, in which two rotors 32 with shapes adapted to the pump cavity are rotatably arranged. The rotating shafts 33 of the two rotors 32 are respectively fixedly fitted with mutually meshing synchronous gears 34. A drive unit 35 that causes the rotating shafts 33 to rotate is connected to the pump body 31. An opening and closing assembly 36 for controlling the liquid inflow and outflow of the reflux mechanism 5 is provided at the lower end of the pump cavity.

[0034] Specifically, the alcohol-based stove combustion system is the core system of a stove that uses alcohol-based liquid fuel as the fuel medium. Compared to conventional natural gas and liquefied petroleum gas stoves, the combustion products of this system are mainly carbon dioxide and water, with no emissions of pollutants such as sulfides and particulate matter. It is highly in line with environmental protection policy guidelines, and its pollution emission level is significantly lower than that of coal-fired and oil-fired stoves, giving it outstanding environmental advantages.

[0035] Alcohol-based stove combustion systems still have inherent defects in practical applications: After each system shutdown, the liquid fuel in the outlet pipe of the rotor pump 3 flows back into the pump chamber under gravity, and the pump chamber cannot be fully filled, resulting in air retention in some areas of the pump chamber. At the same time, the pressure fluctuations in the system during shutdown cause dissolved gases in the fuel to escape and form bubbles, which are easily trapped inside the pump body 31. These problems cause significant fluctuations in the fuel delivery flow rate of the rotor pump 3 during the initial operation phase when the system is restarted. In severe cases, this can cause the rotor 32 to run dry, leading to rapid wear of the pump body 31 and shortening the service life of the equipment. To address this issue, some rotor pumps 3 use an exhaust valve added to the pump body 31 to vent the gas inside the pump through liquid flushing during startup. However, alcohol-based liquid fuels, especially those containing methanol, are volatile and their volatile components are somewhat toxic, limiting the applicability of this solution in small-scale applications such as homes.

[0036] To address the aforementioned technical deficiencies, this embodiment optimizes the structure of the traditional stove combustion system. The working process is as follows: When the system is running, the drive unit 35 drives the corresponding rotor 32 to rotate through the transmission-connected rotating shaft 33. The synchronous reverse rotation of the two rotors 32 is achieved by the meshing transmission of the synchronous gears 34 on the two rotating shafts 33. A stable gas pressure difference is formed by the matching movement of the rotors 32 and the pump chamber, which stably pumps the alcohol-based liquid fuel in the fuel tank 1 into the pump chamber of the rotor pump 3 along the liquid inlet pipe 2.

[0037] At this time, under the hydraulic pressure of the alcohol-based liquid fuel, the one-way valve 4 opens smoothly, while the return mechanism 5 remains closed, allowing the fuel to be smoothly transported to the transfer tank 7 along the outlet pipe 6. The transfer tank 7 is equipped with a high and low level start-stop control device. When the liquid level in the transfer tank 7 is low, the rotor pump 3 starts and draws fuel from the fuel tank 1 into the transfer tank 7 for replenishment; until the liquid level in the transfer tank 7 rises to the preset height, the external ball valve connected to the transfer tank 7 closes the outlet as the liquid level rises, and the rotor pump 3 stops running simultaneously, thereby avoiding overfilling of fuel and ensuring the safety of system operation.

[0038] If the fuel level in the transfer tank 7 is low but fuel cannot be drawn, it indicates that the fuel in the fuel tank 1 is insufficient, and a vacuum alarm will be activated to remind the user to replace the cylinder. The fuel in the transfer tank 7 is transported to the stove through subsequent pipelines, where it is converted from liquid to gaseous state by the gasification device before combustion. The precise meshing transmission of the synchronous gear 34 and the one-way conduction design of the one-way valve 4 effectively ensure the stability of fuel delivery and gasification efficiency.

[0039] When the system stops and the rotor pump 3 stops, the one-way valve 4 quickly closes to block the reverse flow of fuel. At the same time, it triggers the opening of the return mechanism 5, allowing some of the liquid fuel in the outlet pipe 6 to flow back into the rotor pump 3 chamber. This not only enables the pump chamber to be quickly filled, but also fundamentally solves the problem of air retention in the pump chamber after the traditional system stops. This design ensures that the rotor pump 3 can directly draw a full chamber of fuel when it starts up again, effectively avoiding the flow fluctuations and the risk of rotor 32 running dry during the initial startup. It also significantly reduces the cavitation wear of the pump body 31, extends the service life of the equipment, and eliminates the need for an additional exhaust valve, thus avoiding the emission of toxic volatiles and improving the applicability and safety of the system in small-scale scenarios such as homes.

[0040] The reflux mechanism 5 includes a three-way pipe 51. One of the straight ports of the three-way pipe 51 is connected to the outlet of the one-way valve 4, and the other straight port of the three-way pipe 51 is connected to the liquid outlet pipe 6 through the corrugated pipe 53. The branch port of the three-way pipe 51 is connected to the pump chamber of the rotor pump 3 through the reflux pipe 52.

[0041] A valve stem 42 is fixedly connected to the valve core 41 of the one-way valve 4. The other end of the valve stem 42 adopts an elastic and telescopic design and extends through the three-way pipe 51 into the bellows pipe 53, and is fixedly connected to the end of the bellows pipe 53 away from the three-way pipe 51 through a connector 54.

[0042] A slip ring 55 is slidably connected in the three-way pipe 51. A return port 551 corresponding to the branch port of the three-way pipe 51 is opened on the slip ring 55. Push blocks 56 are fixedly connected to both sides of the slip ring 55 on the valve stem 42.

[0043] The return pipe 52 is connected to the bottom end of the pump body 31, and a sludge collection bottle 57 is detachably connected to the horizontal section of the return pipe 52.

[0044] Specifically, during the shutdown of rotor pump 3, check valve 4 is in the closed state, valve stem 42 is in the initial position, and push block 56 makes reflux port 551 precisely aligned with branch port of three-way pipe 51. At this time, branch port of three-way pipe 51 is in the open state, and bellows 53 is in the folded state. This initial state lays a stable structural foundation for the reflux adsorption process after shutdown. When the rotor pump 3 starts, the hydraulic driving force opens the check valve 4, and the valve stem 42 moves synchronously. On the one hand, the push block 56 pushes the slip ring 55 to slide in the three-way pipe 51, causing the return port 551 to be misaligned with the branch port, thereby achieving reliable closure of the branch port. This structural design realizes the precise switching between the delivery path and the return path, ensuring that the alcohol-based liquid fuel can be stably delivered along the preset path from the pump chamber, three-way pipe 51, check valve 4 to the outlet pipe 6 during delivery, effectively avoiding backflow during the delivery stage and ensuring delivery efficiency and stability. At the same time, the displacement of the valve stem 42 drives the bellows 53 to unfold synchronously. The expandable characteristics of the bellows 53 adapt to the changes in pipeline volume during the delivery process, improving the adaptability of the pipeline system.

[0045] When the rotor pump 3 stops, the one-way valve 4 automatically closes due to its structural characteristics. The push block 56 drives the slip ring 55 to reset, ensuring the branch port of the three-way pipe 51 and the return port 551 are precisely aligned again. The bellows 53 returns to its folded state synchronously with the valve stem 42. During this process, the pressure difference generated by the folding of the bellows 53 efficiently adsorbs the residual alcohol-based liquid fuel in the outlet pipe 6 into the rotor pump 3, effectively reducing waste caused by fuel residue and preventing residual liquid from depositing and deteriorating in the pipeline. The pressure change triggers the opening and closing component 36 to open during this period, providing a smooth channel for gas-liquid exchange. Once the gas-liquid exchange in the rotor pump 3 is complete, the opening and closing component 36 automatically closes, achieving a sealed storage of the alcohol-based liquid fuel in the pump chamber. This prevents fuel leakage and provides a stable initial operating condition for the next start-up of the rotor pump 3.

[0046] The opening and closing assembly 36 includes an arc plate 361, which is slidably connected to the bottom end of the pump body 31 through an arc groove. A through groove 362 is provided on the arc plate 361, and a through hole 363 corresponding to the through groove 362 is provided at the bottom of the pump cavity.

[0047] A trigger block 364 is fixedly connected to the lower arc surface of the arc plate 361, and the trigger block 364 is set in the arc groove by a reset spring 365.

[0048] Specifically, after the rotor pump 3 stops, during the process of the bellows 53 returning to its folded state from the unfolded state and the branch port of the tee pipe 51 aligning with the return port 551 again, a hydraulic differential is generated in the system. This hydraulic differential pushes the residual alcohol-based liquid fuel in the outlet pipe 6 along the branch port into the return pipe 52. At this time, the thrust of the returning liquid causes the arc plate 361 to overcome the elastic force of the return spring 365 and slide along the arc groove. The arc sliding cooperation between the arc plate 361 and the arc groove ensures the smoothness and sealing of the movement, and promotes the precise alignment of the through groove 362 and the through hole 363, so that the liquid can flow smoothly from bottom to top back into the rotor pump 3 and completely fill it. The reset spring 365 provides a stable reset force for the arc plate 361, ensuring that the through groove 362 and the through hole 363 are reliably misaligned in the non-backflow state, thus avoiding liquid leakage in the pump chamber. The design that the liquid completely fills the pump chamber allows the rotor pump 3 to quickly enter the working state when it is started next time, effectively avoiding the phenomenon of idling, which not only improves the starting efficiency but also reduces the wear caused by idling to the equipment.

[0049] It is worth noting that the above-mentioned alcohol-based liquid fuel stove combustion system based on the anti-cavitation rotor pump structure also has the following advantages:

[0050] Advantage 1: When the system shuts down, the one-way valve 4 quickly closes to block the reverse flow of fuel, while the return mechanism 5 opens. The pressure difference generated by the folding of the bellows 53 draws residual fuel in the outlet pipe 6 back into the pump chamber. In conjunction with the sliding motion of the arc-shaped plate 361 in the opening / closing assembly 36 due to the hydraulic pressure difference, the through groove 362 aligns with the through hole 363, allowing the fuel to completely fill the pump chamber and preventing air retention and bubble residue. Upon the next startup, the rotor pump 3 can directly draw a full chamber of fuel, completely solving the problems of flow fluctuations and rotor 32 idling during the initial startup of traditional systems, and significantly reducing pump body 31 wear.

[0051] Advantage 2: During operation, the drive unit 35 drives the rotor 32 to rotate via the shaft 33. The synchronous gears 34 on the two shafts 33 mesh precisely, achieving synchronous reverse rotation of the rotor 32 and forming a stable gas pressure difference. At this time, the one-way valve 4 opens, and the slip ring 55 in the return mechanism 5 is pushed by the valve stem 42 push block 56, causing the return port 551 to be misaligned and closed with the branch port of the three-way pipe 51. Fuel is stably delivered to the transfer tank 7 along the pump chamber, the three-way pipe 51, and the liquid outlet pipe 6. The meshing transmission of the synchronous gears 34 and the one-way conduction design of the one-way valve 4 ensure continuous and stable fuel delivery, improving gasification efficiency and subsequent combustion effect.

[0052] Thirdly, after shutdown, the corrugated pipe 53 folds to absorb any residual alcohol-based liquid fuel in the outlet pipe 6, which then flows back to the pump chamber through the return pipe 52, preventing waste due to fuel deposition and deterioration. Simultaneously, the detachable collection bottle 57 on the horizontal section of the return pipe 52 traps any impurities that may be present in the fuel, preventing them from entering the pump chamber and causing increased wear, facilitating regular cleaning, reducing pipeline contamination, and ensuring fuel purity.

[0053] Fourthly, the valve stem 42 adopts a flexible and telescopic design, with one end fixed to the valve core 41 of the one-way valve 4 and the other end connected to the bellows 53, which can adapt to changes in pipeline volume during system operation and shutdown. The return spring 365 in the opening and closing assembly 36 provides a stable return force to the arc-shaped plate 361, ensuring that the through groove 362 and through hole 363 are misaligned and sealed in the non-reflow state to prevent fuel leakage from the pump chamber; during reflow, the arc plate 361 slides smoothly along the arc groove, ensuring precise alignment of the through groove 362 and through hole 363, achieving reliable reflow. The overall structure achieves automatic switching through mechanical linkage, eliminating the need for additional control components and improving operational reliability.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A combustion system for an alcohol-based liquid fuel stove based on an anti-cavitation rotor pump structure, characterized in that, include: Fuel tank (1), the fuel tank (1) is connected to rotor pump (3) through inlet pipe (2) with internal check valve, the outlet of rotor pump (3) is connected to one-way valve (4), the one-way valve (4) is connected to reflux mechanism (5), the reflux mechanism (5) is connected to turnover tank (7) through outlet pipe (6); The rotor pump (3) includes a pump body (31), in which two rotors (32) with shapes adapted to the pump chamber are rotatably arranged. The rotating shafts (33) of the two rotors (32) are respectively fixedly fitted with mutually meshing synchronous gears (34). A drive unit (35) for rotating the rotating shafts (33) is connected in the pump body (31). An opening and closing assembly (36) for controlling the liquid inflow and outflow in the return flow mechanism (5) is provided at the lower end of the pump chamber.

2. The alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure according to claim 1, characterized in that: The reflux mechanism (5) includes a three-way pipe (51), one of the straight ports of the three-way pipe (51) is connected to the outlet of the one-way valve (4), the other straight port of the three-way pipe (51) is connected to the outlet pipe (6) through the corrugated pipe (53), and the branch port of the three-way pipe (51) is connected to the pump chamber of the rotor pump (3) through the reflux pipe (52).

3. The alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure according to claim 2, characterized in that: The valve core (41) of the one-way valve (4) is fixedly connected to a valve stem (42). The other end of the valve stem (42) adopts an elastic and telescopic design and extends through the three-way pipe (51) into the bellows pipe (53), and is fixedly connected to the end of the bellows pipe (53) away from the three-way pipe (51) through a connector (54).

4. The alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure according to claim 2, characterized in that: A slip ring (55) is slidably connected in the three-way pipe (51). A return port (551) corresponding to the branch port of the three-way pipe (51) is opened on the slip ring (55). Push blocks (56) are fixedly connected on both sides of the slip ring (55) on the valve stem (42).

5. The alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure according to claim 2, characterized in that: The return pipe (52) is connected to the bottom end of the pump body (31), and a sludge collection bottle (57) is detachably connected to the horizontal section of the return pipe (52).

6. The alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure according to claim 1, characterized in that: The opening and closing assembly (36) includes an arc plate (361), which is slidably connected to the bottom end of the pump body (31) through an arc groove. A through groove (362) is provided on the arc plate (361), and a through hole (363) corresponding to the through groove (362) is provided at the bottom of the pump cavity.

7. The alcohol-based liquid fuel stove combustion system based on an anti-cavitation rotor pump structure according to claim 6, characterized in that: The arc plate (361) is fixedly connected to a trigger block (364) on the lower arc surface, and the trigger block (364) is set in the arc groove by a reset spring (365).

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