CN111412463A - Superconductive temperature-control vaporization burner - Google Patents
Superconductive temperature-control vaporization burner Download PDFInfo
- Publication number
- CN111412463A CN111412463A CN202010397249.6A CN202010397249A CN111412463A CN 111412463 A CN111412463 A CN 111412463A CN 202010397249 A CN202010397249 A CN 202010397249A CN 111412463 A CN111412463 A CN 111412463A
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- temperature
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- vaporization
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
- F23D5/02—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel the liquid forming a pool, e.g. bowl-type evaporators, dish-type evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
- F23D5/12—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
- F23D5/12—Details
- F23D5/18—Preheating devices
Abstract
The invention discloses a superconducting temperature-control vaporization burner, which comprises a combustion unit, a fuel unit and a vaporization temperature-control unit, wherein the fuel unit contains liquid methanol, and the combustion unit uses gas methanol as fuel; the vaporization temperature control unit comprises a temperature control cavity, a balance cavity, a circulating pipe and superconducting liquid; the circulating pipe is communicated with the temperature control cavity and the balance cavity; the vaporization temperature of the superconducting liquid is A; a is more than or equal to 180 ℃ and less than or equal to 280 ℃; the temperature control cavity is clamped between the combustion unit and the fuel unit to generate phase change; the phase change which always occurs in the temperature control cavity enables the vaporization temperature of the methanol in the fuel unit to be always lower than the temperature of the carbon deposition by vaporization; the balance cavity always balances the pressure of the temperature control cavity through the circulating pipe so as to ensure the safety of phase change. The burner in the invention vaporizes liquid methanol into gas methanol by burning waste heat, utilizes superconducting liquid to control temperature in the vaporization process, and ensures that the temperature in the vaporization process of the methanol is always lower than the carbon precipitation temperature of the vaporization of the methanol, and the burner has compact and simple integral structure and stable and reliable use.
Description
Technical Field
The invention relates to the field of heating equipment, in particular to a superconducting temperature-controlled vaporization burner.
Background
The renewable clean fuel mainly comprising methanol is widely used by people. The product has a large market share in the catering industry, the heating industry and other fields.
In order to make the methanol fuel burn more completely and discharge cleaner, people advocate the methanol vaporization burning. However, the vaporization temperature of methanol is difficult to control because methanol is vaporized at high temperature (288 ℃) to crack and desorb carbon, which results in that the equipment cannot be operated.
For example, in patent publication No. CN206269187U, methanol is vaporized by the residual heat of methanol combustion, but the heat of the residual heat is not controlled, and carbon deposition occurs with the vaporization, and the carbon blocks the gas outlet or the fuel tank, which results in the failure of the apparatus.
For example, in a patent document with a patent publication number of "CN 207365052U", the vaporization temperature is not controlled in the vaporization process, and it cannot be guaranteed that carbon is not precipitated in the vaporization process; and the device overall structure is complicated, and it is inconvenient to maintain.
Disclosure of Invention
The present invention aims to provide a burner for preventing methanol from vaporizing and separating carbon, which can solve one or more of the above technical problems.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the superconducting temperature-control vaporization burner comprises a combustion unit, a fuel unit and a vaporization temperature-control unit, wherein the fuel unit contains liquid methanol, and the combustion unit uses gas methanol as fuel.
The vaporization temperature control unit comprises a temperature control cavity, a balance cavity, a circulating pipe and superconducting liquid; the circulating pipe is communicated with the temperature control cavity and the balance cavity; the vaporization temperature of the superconducting liquid is A; a is more than or equal to 180 ℃ and less than or equal to 280 ℃.
The temperature control cavity is clamped between the combustion unit and the fuel unit to generate phase change; the phase change which always occurs in the temperature control cavity enables the vaporization temperature of the methanol in the fuel unit to be always lower than the temperature of the carbon deposition by vaporization.
The balance cavity is used for balancing the pressure of the temperature control cavity through the circulating pipe all the time, and the superconducting liquid is enabled to ensure the safe gas-liquid phase change within a certain pressure range.
In the invention, the vaporization temperature does not exceed the temperature (280 ℃) for carbon precipitation of methanol is contained in the cavity through the two communicated cavities, so that the carbon precipitation of the methanol can be effectively ensured.
The specific working principle is as follows: the temperature control cavity is used for absorbing methanol combustion waste heat of the combustion unit, and then superconducting liquid in the temperature control cavity is heated and vaporized in the cavity to generate liquid-gas phase change; transferring heat to the fuel unit in the process of heating and vaporizing the superconducting liquid to vaporize the methanol in the fuel unit;
the pressure in the cavity is increased in the process of continuously vaporizing the superconducting liquid in the temperature control cavity, the liquid superconducting liquid in the cavity is pressed into the balance cavity through the circulating pipe to adjust the pressure, and then the temperature control cavity is filled with gas, so that the heat conduction capability of the temperature control cavity is greatly reduced, namely, a heat insulation layer is arranged between the combustion unit and the fuel unit, and the methanol vaporization process of the fuel unit cannot obtain higher temperature from the combustion unit;
when the temperature of the methanol is still below the vaporization temperature of the methanol, the methanol is constantly vaporized, but the vaporization temperature is gradually reduced, and when the vaporization temperature of the methanol is reduced to a certain degree and the temperature difference between the methanol and the temperature control cavity is increased, the methanol absorbs heat from the temperature control cavity to liquefy part of the gas superconducting liquid in the temperature control cavity and generate gas-liquid phase change; the liquid superconducting liquid in the temperature control cavity continuously obtains heat from the fuel unit to be vaporized so as to achieve new balance; under the temperature regulation of the phase change process of the superconducting liquid in the temperature control cavity, the vaporization temperature of the methanol is always below the carbon precipitation temperature of 280 ℃.
The balance cavity is used for adjusting the superconducting liquid amount of the temperature control cavity and the pressure of the temperature control cavity in the whole process, and does not participate in the vaporization process of the fuel unit.
In the invention, when the superconducting liquid is vaporized by the temperature, the superconducting liquid is not vaporized into gas completely, but the degree of vaporization is changed along with the temperature. When the temperature is too high, the vaporization degree is deepened, resulting in a large amount of vaporized superconducting liquid, so that the superconducting liquid level between the gas state and the liquid state is lowered, resulting in a decrease in heat transfer capability. Because the heat conduction capacity of the liquid superconducting liquid is far greater than that of the gas; therefore, heat conduction can be realized in the liquid superconducting liquid, and the gas superconducting liquid can realize heat insulation to a certain degree when gradually vaporized; thus, both the methanol can be vaporized and the temperature at which the methanol is vaporized can be controlled.
In order to ensure the use safety, the overflow valve is arranged on the balance cavity to prevent the liquid superconducting liquid from flowing out due to overlarge pressure.
A specific combustion unit configuration is provided herein. The combustion unit comprises a combustion cavity, an ignition part, a flame jet, a fuel supply port and a fire valve; the ignition part is positioned above the flame jet, and the fire valve is arranged at the fuel supply port.
A specific fuel cell configuration is provided. The fuel unit comprises a fuel storage cavity, a guide pipe, a feeding hole and a discharging hole, wherein the upper end of the guide pipe is positioned in the fuel storage cavity, the lower end of the guide pipe is communicated with the discharging hole, and the discharging hole is communicated with a fuel supply hole through a pipeline. The discharge port is positioned below the fuel tank, and the fuel is discharged under the gravity. The feed opening may be provided at any position of the fuel storage chamber, except for the inlet of the guide tube, and the fuel may be injected by a pump at the lower side.
The inlet of the conduit is the upper end, and the outlet is the lower end; the flow direction of the fuel storage cavity is from top to bottom, so that the fuel quantity in the fuel storage cavity can be ensured, and the trend of the fuel in the fuel storage cavity after vaporization is not influenced.
Also included herein is a preheating unit: the preheating unit comprises an air distribution box; the air distribution box is positioned below the fire-jet orifice, and the upper part of the air distribution box is open and has a certain distance with the fire-jet orifice.
In addition, in order to ensure the sufficiency of combustion, the device also comprises a sedimentation cup, wherein the sedimentation cup comprises a first inlet, a first outlet and a sewage discharge outlet, and the first outlet is communicated with the feed inlet; the precipitation cup purges the fuel before it enters the fuel chamber.
Here the first inlet is located in the upper part of the precipitation cup, which ensures that impurities are lined up to below, and the fuel in the upper part is free of impurities or low in impurities. The drain outlet is positioned at the bottom of the sedimentation cup.
Further: the vaporization temperature of the superconducting liquid is 200 ℃.
Further: the vaporization temperature of the superconducting liquid is 250 ℃.
The superconducting liquid can be directly customized and purchased from a superconducting liquid manufacturer, and belongs to a common technology; it is not necessary to disclose the specific components and ratios thereof.
Further: the superconducting liquid extracts heat from the combustion unit at a temperature not higher than 288 ℃.
In order to further ensure the stability of the vaporized methanol in use. Because heat is spontaneously transferred from high temperature to low temperature, energy is lost in the phase change process, and therefore when the temperature of the heat source at the beginning is kept constant, temperature control in the heat transfer process is safer and more reliable.
The use method of the superconducting temperature-controlled vaporization burner specifically comprises the following steps:
s1 preparing superconducting liquid with boiling point of 180-280 ℃;
s2, filling the superconducting liquid into a superconducting container;
s3, extracting partial liquid fuel from the fuel unit, feeding the liquid fuel into the combustion unit, igniting the fuel in the combustion unit, and generating an initial temperature by the fuel, wherein the initial temperature preheats the superconducting liquid in the balance cavity and raises the temperature of the superconducting liquid;
s4, absorbing heat from the superconducting liquid in the temperature control cavity to vaporize the liquid methanol fuel in the fuel unit;
s5, completely igniting the combustion unit, and enabling the fuel unit to provide gas methanol fuel for the combustion unit to enable the combustion unit to enter a complete combustion working state;
s6, when the temperature control unit is filled with gas, the heat conduction capability is greatly reduced; so that the methanol liquid can not absorb heat sufficiently, and the vaporization temperature of the methanol is continuously reduced until the temperature of the fuel unit enables the gas in the temperature control cavity to be liquefied again; and the carbon precipitation is avoided in the methanol vaporization process in the fuel unit through the phase change reaction of the superconducting liquid in the temperature control cavity.
The invention has the technical effects that:
the burner in the invention vaporizes liquid methanol into gas methanol by burning waste heat, utilizes superconducting liquid to control temperature in the vaporization process, and ensures that the temperature in the vaporization process of the methanol is always lower than the carbon precipitation temperature of the vaporization of the methanol, and the burner has compact and simple integral structure and stable and reliable use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic flow diagram of methanol gas or liquid.
Detailed Description
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided only for the purpose of illustrating the present invention and are not to be construed as unduly limiting the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1, a specific structure form of the combustion unit 100, the fuel unit 200 and the vaporization temperature control unit 300 is shown. The fuel unit contains liquid methanol 205, and the combustion unit uses gas methanol as fuel; the vaporization temperature control unit is filled with superconducting liquid. The vaporization temperature of the superconducting liquid is A; a is more than or equal to 180 ℃ and less than or equal to 280 ℃.
In fig. 1, the combustion unit includes a combustion chamber 101, an ignition portion 102, a flame ejection port 103, a fuel supply port 104, and a fire valve 105; the ignition portion 102 is located above the burner 103, and the fire valve 105 is installed at the fuel supply port 104. The fire valve 105 is mainly used to adjust the flow rate of the gaseous methanol during the complete combustion of the combustion unit to adjust the combustion condition.
The device also comprises a preheating unit, wherein the preheating unit comprises an air distribution box 401; the air distribution box is positioned below the fire-jet 103, and the upper part of the air distribution box is open and has a certain distance with the fire-jet. In fig. 1, the air distribution box is used for receiving liquid fuel flowing out of a fire nozzle and enabling natural wind or air to flow into a combustion chamber from the lower part of the fire nozzle so as to enable the fuel to be fully combusted in the combustion chamber.
The fuel unit 200 comprises a fuel storage cavity 201, a guide pipe 202, a feed port 203 and a discharge port 204, wherein the upper end of the guide pipe is positioned in the fuel storage cavity, the lower end of the guide pipe is communicated with the discharge port, and the discharge port is communicated with a fuel supply port through a pipeline.
The vaporization temperature control unit 300 comprises a temperature control cavity 301, a balance cavity 302, a circulating pipe 303 and superconducting liquid 304; the circulating pipe 303 is communicated with the temperature control cavity 301 and the balance cavity 302; the temperature control cavity 302 is clamped between the combustion unit 100 and the fuel unit 200 to generate phase change; the specific phase transition process is two types: firstly, the superconducting liquid in the temperature control cavity generates liquid-gas phase change (liquid superconducting liquid 304 is vaporized into gas superconducting liquid 305) by the combustion waste heat of the combustion unit, so that the fuel unit absorbs heat from the temperature control cavity and the methanol in the fuel unit is vaporized; the vaporized methanol enters the combustion chamber through the conduit for combustion;
secondly, the vaporization temperature of the methanol in the fuel unit enables the superconducting liquid gas in the temperature control unit to generate gas-liquid phase transition (the gas superconducting liquid 305 is liquefied into the liquid superconducting liquid 304), and the fuel unit absorbs heat to the temperature control cavity to enable the methanol in the temperature control cavity to be vaporized again;
therefore, the phase change which always occurs in the temperature control cavity enables the vaporization temperature of the methanol 205 in the fuel unit to be always lower than the vaporization carbon deposition temperature (280 ℃); the phase change process of the superconducting liquid in the temperature control cavity is that the pressure is regulated through the balance cavity 302 all the time, mainly when the temperature control cavity has liquid-gas phase change, the pressure of the temperature control cavity is gradually increased, and in order to ensure safety, the gradually increased pressure is balanced through the balance cavity.
In addition, before the liquid methanol 205 fuel enters the fuel storage cavity, the fuel needs to be purified, so that the fuel storage cavity also comprises a sedimentation cup 500, wherein the sedimentation cup comprises a first inlet 501, a first outlet 502 and a sewage discharge opening 503, and the first outlet is communicated with the feed inlet; the precipitation cup purges the fuel before it enters the fuel chamber.
The temperature control cavity is attached to the combustion cavity, the fuel storage cavity is arranged close to the temperature control cavity, the balance cavity is communicated with the temperature control cavity through a circulating pipe, the pressure of the temperature control cavity is balanced by the balance cavity through the circulating pipe all the time, and the superconducting liquid ensures the safe gas-liquid phase change within a certain pressure range. The balance cavity does not participate in heat absorption and heat release, and a vacuum layer can be arranged between the fuel storage cavity and the balance cavity for the purposes of compact structure and simplicity. The balance cavity is provided with a superconductive liquid inlet which is arranged at the upper part of the balance cavity.
As shown by the arrows in fig. 2, methanol enters the combustion unit from the fuel unit in two processes. Wherein, the methanol liquid flows into the air distribution box from the fire-jet for preheating; and the preheated methanol gas enters the combustion chamber from the flame jet upwards for combustion.
The specific operation process of the burner is as follows:
s1 preparing superconducting liquid with the boiling point of 200 ℃;
s2, filling the superconducting liquid into a superconducting container;
s3, extracting partial liquid fuel from the fuel unit, feeding the liquid fuel into the combustion unit, igniting the fuel in the combustion unit, and generating an initial temperature by the fuel, wherein the initial temperature preheats the superconducting liquid in the balance cavity and raises the temperature of the superconducting liquid;
s4, absorbing heat from the superconducting liquid in the temperature control cavity to vaporize the liquid methanol fuel in the fuel unit;
s5, completely igniting the combustion unit, and enabling the fuel unit to provide gas methanol fuel for the combustion unit to enable the combustion unit to enter a complete combustion working state;
s6, when the temperature control unit is filled with gas, the heat conduction capability is greatly reduced; so that the methanol liquid can not absorb heat sufficiently, and the vaporization temperature of the methanol is continuously reduced until the temperature of the fuel unit enables the gas in the temperature control cavity to be liquefied again; and the carbon precipitation is avoided in the methanol vaporization process in the fuel unit through the phase change reaction of the superconducting liquid in the temperature control cavity.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Superconductive control by temperature change vaporization combustor, its characterized in that: the device comprises a combustion unit, a fuel unit and a vaporization temperature control unit, wherein the fuel unit contains liquid methanol, and the combustion unit uses gas methanol as fuel;
the vaporization temperature control unit comprises a temperature control cavity, a balance cavity, a circulating pipe and superconducting liquid; the circulating pipe is communicated with the temperature control cavity and the balance cavity;
the vaporization temperature of the superconducting liquid is A; a is more than or equal to 180 ℃ and less than or equal to 280 ℃;
the temperature control cavity is clamped between the combustion unit and the fuel unit to generate phase change; the phase change which always occurs in the temperature control cavity enables the vaporization temperature of the methanol in the fuel unit to be always lower than the temperature of the carbon deposition by vaporization;
the balance cavity is used for balancing the pressure of the temperature control cavity through the circulating pipe all the time, and the superconducting liquid is enabled to ensure the safe gas-liquid phase change within a certain pressure range.
2. The superconducting temperature controlled vaporization burner of claim 1, wherein: the combustion unit comprises a combustion cavity, an ignition part, a flame jet, a fuel supply port and a fire valve; the ignition part is positioned above the flame jet, and the fire valve is arranged at the fuel supply port.
3. The superconducting temperature controlled vaporization burner of claim 2, wherein: the fuel unit comprises a fuel storage cavity, a guide pipe, a feeding hole and a discharging hole, wherein the upper end of the guide pipe is positioned in the fuel storage cavity, the lower end of the guide pipe is communicated with the discharging hole, and the discharging hole is communicated with a fuel supply hole through a pipeline.
4. The superconducting temperature controlled vaporization burner of claim 2, wherein: the preheating unit comprises an air distribution box; the air distribution box is positioned below the fire-jet orifice, and the upper part of the air distribution box is open and has a certain distance with the fire-jet orifice.
5. The superconducting temperature controlled vaporization burner of claim 3, wherein: the sedimentation cup comprises a first inlet, a first outlet and a sewage discharge outlet, wherein the first outlet is communicated with the feed inlet; the precipitation cup purges the fuel before it enters the fuel chamber.
6. The superconducting temperature controlled vaporization burner of claim 1, wherein: the vaporization temperature of the superconducting liquid is 200 ℃.
7. The superconducting temperature controlled vaporization burner of claim 1, wherein: the vaporization temperature of the superconducting liquid is 250 ℃.
8. The method for using a superconducting temperature-controlled vaporizing burner according to claim 1, characterized by comprising the following steps:
s1 preparing superconducting liquid with boiling point of 180-280 ℃;
s2, filling the superconducting liquid into a superconducting container;
s3, extracting partial liquid fuel from the fuel unit, feeding the liquid fuel into the combustion unit, igniting the fuel in the combustion unit, and generating an initial temperature by the fuel, wherein the initial temperature preheats the superconducting liquid in the balance cavity and raises the temperature of the superconducting liquid;
s4, absorbing heat from the superconducting liquid in the temperature control cavity to vaporize the liquid methanol fuel in the fuel unit;
s5, completely igniting the combustion unit, and enabling the fuel unit to provide gas methanol fuel for the combustion unit to enable the combustion unit to enter a complete combustion working state;
s6, when the temperature control unit is filled with gas, the heat conduction capability is greatly reduced; so that the methanol liquid can not absorb heat sufficiently, and the vaporization temperature of the methanol is continuously reduced until the temperature of the fuel unit enables the gas in the temperature control cavity to be liquefied again; and the carbon precipitation is avoided in the methanol vaporization process in the fuel unit through the phase change reaction of the superconducting liquid in the temperature control cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010397249.6A CN111412463A (en) | 2020-05-12 | 2020-05-12 | Superconductive temperature-control vaporization burner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010397249.6A CN111412463A (en) | 2020-05-12 | 2020-05-12 | Superconductive temperature-control vaporization burner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856401A (en) * | 2021-01-28 | 2021-05-28 | 邓光勇 | Vaporization oil-burning stove |
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2020
- 2020-05-12 CN CN202010397249.6A patent/CN111412463A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856401A (en) * | 2021-01-28 | 2021-05-28 | 邓光勇 | Vaporization oil-burning stove |
| CN112856401B (en) * | 2021-01-28 | 2023-08-15 | 邓光勇 | Vaporization oil burner |
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