CN216114178U

CN216114178U - Alcohol fuel stove

Info

Publication number: CN216114178U
Application number: CN202120050606.1U
Authority: CN
Inventors: 黄兰; 陈剑明
Original assignee: Guangzhou Deyou Tongda Technology Co ltd
Current assignee: Shanghai Huayan Safety And Environmental Protection Technology Co ltd
Priority date: 2021-01-10
Filing date: 2021-01-10
Publication date: 2022-03-22
Anticipated expiration: 2031-01-10

Abstract

The utility model discloses an alcohol fuel stove which comprises a fuel tank, a straight spray pipe, a vaporization ring, a furnace end arranged at the center of the vaporization ring, a connecting pipeline and a connecting piece, wherein the fuel tank, the straight spray pipe, the vaporization ring and the furnace end are sequentially connected; and a vaporizing ring is arranged above the straight spray pipe. The fuel storage device is arranged on the fuel conveying pipeline of the stove, so that fuel can be filled into the stove in advance, and the time required by fuel conveying is reduced; when the stove is in cold ignition, a powerful electronic ignition device is adopted to ignite atomized fuel sprayed by the atomizing head, preheating time is greatly shortened, the stove can quickly generate vigorous flames even in cold ignition, and due to the unique design of the gasification ring, excessive unvaporized liquid fuel can be prevented from being stored in the gasification ring, so that the fuel is heated, vaporized and expanded in the gasification ring to generate high pressure, and the flame is prevented from being suddenly excessively combusted, so that normal flame combustion is kept.

Description

Alcohol fuel stove

Technical Field

The utility model belongs to the technical field of environment-friendly energy-saving equipment, and particularly relates to an alcohol fuel stove.

Background

At present, the research of alternative energy sources has two major points: firstly, coal-based alternative liquid fuels comprise methanol, dimethyl ether and synthetic oil; the second is biomass liquid fuel (ethanol and biodiesel). In the face of the exhaustion of the traditional petrochemical energy, the alcohol fuel is the most potential novel alternative energy at present, and is favored by enterprises in various countries due to low price, high efficiency, safety and environmental protection. Experts in the industry predict that the alcohol fuel mainly containing methanol is expected to be most widely popularized and applied in the market due to outstanding advantages. At present, the global energy is in short supply, so that the prices of industrial and civil fuels such as fuel oil, gas and the like are increased dramatically, and the daily life of people is directly influenced. The development and application of new energy resources are trending. In 2006, the living cost of the people is reported to be increased due to the soaring rise of the price of liquefied gas, and the price is continuously increased along with the increasing shortage of resources. In 2008, the oil waste spread, and some hotels and restaurants using diesel oil as fuel were urgent, and even some enterprises had great loss when closing the doors because they could not buy diesel oil. In 2010, along with the recovery of global economy, the international oil price rises dramatically again, the international energy agency warns that the low oil price period is not repeated once. Meanwhile, the problem of environmental pollution is increasingly serious due to the use of diesel fuel. Alcohol fuel is recognized in the world, is one of the new standard energy sources officially recognized by the state, and along with the rapid increase of the international oil price, the alcohol fuel can quickly become a substitute of liquefied gas and other fuels. The alcohol fuel is a novel fuel which is mainly configured by methanol and other substances, exists in a liquid form, is the same as nuclear energy, solar energy, wind energy and hydraulic energy, is environment-friendly clean energy which is widely popularized at present, has rich raw material sources and high oxygen content, is fully combusted, does not contain carbon particles in smoke, is convenient to store and transport, has low price, is influenced by excess methanol productivity, develops the downstream market of methanol, and ensures that the methanol fuel is applied to civil cooking fuel and receives attention of researchers and manufacturers. The alcohol fuel has the advantages over liquefied gas: high heat value, low price, heat value as high as 6000 kcal/kg, cleanness, sanitation, no peculiar smell, no black smoke, no carbon deposition and no residue, and is more than 80 percent lower than the waste gas emission of liquefied gas, thereby being a standard green energy source. And safe and reliable, convenient to use transports and need not the steel bottle, has no potential explosion danger, can not cause the poisoning incident because of leaking even more. In order to alleviate the shortage of diesel oil supply, the ministry of energy and environmental protection of the state are united below, and the coal and diesel oil will be prohibited from entering the kitchen in the coming years. By now, some cities have begun to implement. Therefore, the development of new energy is the trend of times, is the demand of benefits and is a big thing benefiting the nation and the people. As a new alternative environment-friendly energy source, the vigorous popularization of alcohol fuels leads the economic development to be in the 'methanol economic era' after the 'petroleum economic era', and has huge development potential and broad prospect. In the prior art, the methanol stove and the methanol fuel boiler are very complicated in design, the methanol utilization rate is very low, and the consumption cost is high.

When the existing alcohol fuel stove is used, liquid fuel enters a vaporizer through a feed pipe, enters a mixed gas pipe from a gas guide pipe after being heated and vaporized, then enters a stove core, is sprayed out from a gas hole, and is combusted. Because the fuel is required to be continuously combusted for more than 5-10 minutes (namely preheated) after ignition, enough heat can be generated to stably vaporize the fuel, and the flame with continuous and vigorous combustion can be generated only after the fuel is stably vaporized. Practice shows that the liquid drops can not be atomized fully, so that incomplete combustion and splashing of the liquid drops are caused. The fuel can be uniformly mixed and combusted with the air under the gasification condition, namely: the liquid fuel is firstly gasified, so that the high-efficiency low-pollution combustion is easier to realize.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides the alcohol fuel stove which is simple in structure, high in combustion efficiency, safe and environment-friendly.

The technical scheme of the utility model is as follows:

an alcohol fuel stove comprises a fuel tank, a straight spray pipe, a gasification ring, a furnace end arranged at the center of the gasification ring, a connecting pipeline and a connecting piece, wherein the fuel tank, the straight spray pipe, the gasification ring and the furnace end are sequentially connected; and a vaporizing ring is arranged above the straight spray pipe.

Further, the gasification ring comprises an inner heat insulation layer, a gasification fuel outlet, an outer layer, a gasification cavity, a fire baffle plate and a fuel inlet.

Furthermore, the gasification ring is made of copper or stainless steel, is provided with a circular hollow cavity, and is provided with an ignition needle, a fire detector and a temperature sensor.

Further, the gasification ring comprises two outer layers formed by punching a metal plate with the thickness of 0.8 mm-1.2 mm, the diameter of the outer layers is about 80mm-90mm, and the two outer layers are welded to form the gasification cavity.

Further, the volume of the gasification cavity is 500mm³－1000mm³The annular cavity of (2).

Furthermore, an inner heat insulation layer is welded in the gasification cavity and divides the gasification cavity into two mutually isolated spaces.

Furthermore, in order to control the temperature in the cavity within a proper range, a fire baffle is welded on the inner side of the gasification ring and is formed by punching a metal plate with the thickness of 0.8 mm-1.2 mm.

Furthermore, concave-convex grooves are uniformly distributed on the inner surface of the fire baffle, and the width of the concave-convex grooves is 10-12 mm. The concave-convex grooves are used for reducing direct contact between the gasified fuel and the surface of the gasification ring and reducing heat transfer so that the fuel is gasified and combusted at a stable temperature.

The alcohol fuel comprises: methanol, ethanol, butanol, and mixtures of any two or three thereof.

The utility model has the beneficial effects that: the fuel storage device is arranged on the fuel conveying pipeline of the stove, so that fuel can be filled into the stove in advance, and the time required by fuel conveying is reduced; when the stove is in cold ignition, a powerful electronic ignition device is adopted to ignite atomized fuel sprayed by the atomizing head, preheating time is greatly shortened, the stove can quickly generate vigorous flames even in cold ignition, and due to the unique design of the gasification ring, excessive unvaporized liquid fuel can be prevented from being stored in the gasification ring, so that the fuel is heated, vaporized and expanded in the gasification ring to generate high pressure, and the flame is prevented from being suddenly excessively combusted, so that normal flame combustion is kept.

Drawings

FIG. 1 is a plan view of the alcohol fuel range of the present invention.

FIG. 2 is a structural view of a gasification ring of the alcohol fuel cooker.

FIG. 3 is a sectional view of a gasification ring of the alcohol fuel cooker of the present invention.

In the figure, 1-a fuel tank, 3-a straight spray pipe, 5-an accelerated delivery pump, 8-a fuel storage device, 10-a delivery pump, 13-a fuel delivery pump, 18-a vaporization ring, 21-a distributor, 22-an ignition needle, 23-an igniter, 24-a temperature sensor, 34-a powerful igniter, 51-an inner heat insulation layer, 53-a fuel inlet 54-an outer layer, 55-a gasification cavity, 56-a fire baffle and 57-a gasified fuel outlet.

Detailed Description

For a further understanding of the contents, features and effects of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.

Referring to fig. 1-3, an alcohol fuel cooking utensil comprises a fuel tank 1, a straight spray pipe 3, a vaporizing ring 18 and a burner arranged at the center of the vaporizing ring, and a connecting pipeline and a connecting piece for connecting all the components, which are connected in sequence; below the gasification ring, a preheating disk is arranged, which is also equipped with a powerful igniter 34 and a delivery pump 10 and is connected to the fuel reservoir. And a vaporizing ring is arranged above the straight spray pipe. A fuel reservoir 8 is provided between the fuel tank and the pre-heat tray for filling the interior of the oven with fuel.

The gasification ring includes an inner insulating layer 51, a gasified fuel outlet 57, an outer layer 54, a gasification chamber 55, a flame shield 56, and a fuel inlet 53. The gasification ring is made of copper or stainless steel, has a circular hollow cavity, and is provided with an ignition needle 22, an igniter 23 and a temperature sensor 24. The gasification ring is formed by stamping two outer layers 54 of sheet metal with the thickness of 0.8 mm-1.2 mm, the diameter of the outer layers is about 80mm-90mm, and the two outer layers are welded to form a gasification cavity 55. The volume of the gasification cavity is 500mm³－1000mm³The annular cavity of (2). An inner insulating layer 51 is welded in the gasification cavity and divides the gasification cavity into two mutually isolated spaces. In order to control the temperature in the cavity within a proper range, a fire baffle plate 56 is welded on the inner side of the gasification ring and is formed by punching and molding a metal plate with the thickness of 0.8 mm-1.2 mm. Concave-convex grooves are uniformly distributed on the inner surface of the fire baffle, and the width of the concave-convex grooves is 10-12 mm. The effect of the relief groove is to reduceThe direct contact between the gasified fuel and the surface of the gasification ring is reduced, and the heat transfer is reduced, so that the fuel is gasified and combusted at a stable temperature.

The ignition is started, atomized fuel sprayed by an atomizing head arranged below a gasification ring is combusted, the outer layer 54 of the gasification ring is preheated, the heat enables the gasification ring to reach the fuel gasification temperature quickly, at the moment, the fuel is injected through a fuel inlet 53 and is gasified in a gasification cavity 55, the gasified fuel is conveyed to a combustion nozzle from a gasification fuel outlet 57 and is ignited by an ignition needle 22, flame is formed on a fire baffle plate 56, meanwhile, the fire baffle plate 56 absorbs the heat of combustion and transfers the heat to the wall of the gasification ring, the temperature is reduced to the optimal gasification temperature through an inner heat insulation layer 51, and a furnace end temperature signal is transferred to a control system through a temperature sensor 24 to form continuous gasification combustion.

The fuel reservoir 8 is equipped with two level sensors, one above the other and connected to the pump 5 and the fuel pump 13. The straight spray pipe 3 is used for mixing fuel and air, and is connected with an air door adjusting valve which manually adjusts air inflow. The vaporizing ring is provided with an ignition needle 22, a fire detector 23 and a temperature sensor 24. The furnace end comprises a distributor 21, and air holes are distributed on the distributor.

The alcohol fuel used by the cooker comprises: methanol, ethanol, butanol, and mixtures of any two or three thereof. The operation of the cooker is described below with methanol as an example.

1) And igniting the cold stove, starting the delivery pump 10 to deliver methanol fuel to an atomizer nozzle arranged below the gasification ring to atomize the methanol, and simultaneously turning on a powerful igniter 34 to ignite in a pulse mode to perform preheating ignition combustion. Because the outer layer 54 is only one layer, the heat makes the gasification ring reach the fuel gasification temperature quickly, at the moment, the fuel is injected through the fuel inlet 53, the fuel is gasified in the gasification cavity 55, the gasified fuel is conveyed to the combustion nozzle from the gasification fuel outlet 57, is ignited through the ignition needle 22, forms flame on the fire baffle plate 56, simultaneously, the fire baffle plate 56 absorbs the combustion heat and transfers the combustion heat to the gasification ring wall, and then the temperature is reduced to the optimal gasification temperature through the inner heat insulation layer 51, whether the flame is successfully combusted and whether the flame is suddenly extinguished in the flame combustion process are judged through the flame detector 23, and the temperature sensor 24 is used for detecting the temperature of the gasification ring. And when the fire detector 23 detects that normal combustion is performed, the delivery pump 10 and the strong igniter 34 are closed, and normal combustion of methanol vaporization ignition is completed. If accidental flame-out occurs during combustion, the flame detector 23 will restart the ignition operation sequence in response to the detected signal.

2) And igniting the hot stove, if accidental flameout occurs in the combustion process and the temperature of the gasification ring 18 is higher than 100 ℃, starting the fuel delivery pump 13, opening the ignition needle 22 for pulse ignition, and closing the ignition needle 22 after the ignition detector 23 detects that normal combustion is performed, so that normal combustion of methanol vaporization ignition is completed. If the temperature of the gasification ring 18 is below 100 c, the cold-cooker ignition operation is repeated.

3) Fuel reservoir workflow: the fuel reservoir 8 serves to fill the burner interior ahead of time, reducing the time required for fuel delivery. The fuel storage is provided with an upper liquid level sensor and a lower liquid level sensor, when the liquid level is lower than the low level, the acceleration delivery pump 5 starts to deliver fuel, and when the liquid level reaches the high level, the fuel delivery is stopped. The liquid level is detected in the whole working process, if the liquid level signal is not detected after 50 seconds of continuous liquid supply, the fuel in the fuel tank is used up, the stove stops all working, and an alarm sound is given to prompt a user to replace the fuel tank. The fuel storage 8 has the function of metering the fuel usage, a fixed water storage amount is arranged between the upper water detection level and the lower water detection level of the fuel storage 8, and the fuel usage can be calculated by calculating the product of the times of filling fuel and the water storage amount. Every time the fuel tank 1 is replaced, the fuel capacity is recorded in the control system again, the using process is calculated by the system, and the preparation for replacing the fuel tank is prompted before the fuel runs out.

Example 1

The alcohol fuel stove comprises a fuel tank, a straight spray pipe, a vaporization ring, a furnace end arranged at the center of the vaporization ring, a connecting pipeline and a connecting piece, wherein the fuel tank, the straight spray pipe, the vaporization ring and the furnace end are sequentially connected; and a vaporizing ring is arranged above the straight spray pipe. The gasification ring comprises two outer layers which are formed by punching a metal plate with the thickness of 0.8mm and the diameter of each outer layer is about 80mm, and the two outer layers are welded to form a gasification cavity.The volume of the gasification cavity is 500mm³The annular cavity of (2). The inner side of the gasification ring is welded with a fire baffle which is formed by punching a metal plate with the thickness of 0.8 mm. The inner surface of the fire baffle is evenly distributed with concave-convex grooves, and the width of the concave-convex grooves is 10 mm.

Example 2

Similar to the alcohol fuel range of example 1, except that the gasification ring comprises two outer layers stamped from sheet metal of 1.2mm thickness and having a diameter of about 90mm, the two outer layers being welded to form the gasification chamber. The volume of the gasification cavity is 1000mm³The annular cavity of (2). The inner side of the gasification ring is welded with a fire baffle which is formed by punching a metal plate with the thickness of 1.2 mm. The inner surface of the fire baffle is evenly distributed with concave-convex grooves, and the width of the concave-convex grooves is 12 mm.

Example 3

Similar to the alcohol fuel range of example 2, except that the gasification ring comprises two outer layers stamped from sheet metal of 1.0mm thickness, about 85mm in diameter, welded to form a gasification chamber. The gasification cavity has a volume of 750mm³The annular cavity of (2). The inner side of the gasification ring is welded with a fire baffle which is formed by punching a metal plate with the thickness of 1.0 mm. The inner surface of the fire baffle is evenly distributed with concave-convex grooves, and the width of the concave-convex grooves is 11 mm.

The foregoing is merely a preferred embodiment of the utility model, and it should be noted that variations may be made by those skilled in the art without departing from the scope of the utility model, and therefore the structure contained in the foregoing description and shown in the accompanying drawings should be considered as illustrative and not limiting the scope of the utility model.

Claims

1. An alcohol fuel cooker is characterized by comprising a fuel tank, a straight spray pipe, a vaporization ring, a furnace end arranged in the center of the vaporization ring, a connecting pipeline and a connecting piece, wherein the fuel tank, the straight spray pipe, the vaporization ring and the furnace end are sequentially connected; a vaporizing ring is arranged above the straight spray pipe, and a furnace end is arranged at the top of the straight spray pipe; the gasification ring comprises two outer layers formed by punching a metal plate with the thickness of 0.8 mm-1.2 mm, the diameter of the two outer layers is about 80mm-90mm, and the two outer layers are welded to form a gasification cavity; an inner heat insulation layer is welded in the gasification cavity and divides the gasification cavity into two mutually isolated spaces.

2. The cooktop of claim 1, wherein the gasification ring comprises an inner insulating layer, a gasification fuel outlet, an outer layer, a gasification cavity, a flame shield, and a fuel inlet.

3. The cooking appliance of claim 1, wherein the vaporization ring is made of copper or stainless steel, has a circular hollow cavity, and is provided with an ignition needle, a fire detector and a temperature sensor.

4. Hob according to claim 1, characterized in that the gasification chamber has a volume of 500mm³－1000mm³The annular cavity of (2).

5. The cooktop of claim 1, wherein a flame shield is welded to an inner side of the gasification ring, and is stamped and formed from a sheet metal material having a thickness of 0.8mm to 1.2 mm.

6. The cooktop of claim 2, wherein the fire baffle has uniformly distributed reliefs on an inner surface thereof, the reliefs having a width of 10-12 mm.