Superconducting temperature-controlled vaporizing burner

Abstract

The present invention discloses a superconducting temperature-controlled vaporizing burner, which includes a combustion unit, a fuel unit, and a vaporizing temperature control unit. The fuel unit contains liquid methanol, and the combustion unit uses gaseous methanol as fuel. The vaporizing temperature control unit includes a temperature control chamber, a balance chamber, a circulation pipe, and a superconducting liquid. The circulation pipe connects the temperature control chamber and the balance chamber. The vaporization temperature of the superconducting liquid is A, where 180°C ≤ A ≤ 280°C. The temperature control chamber undergoes a phase change between the combustion unit and the fuel unit. The phase change occurring in the temperature control chamber all the time keeps the vaporization temperature of methanol in the fuel unit always lower than the carbon deposition temperature during vaporization. The balance chamber always balances the pressure in the temperature control chamber through the circulation pipe to ensure the safety of the phase change. The burner in the present invention vaporizes liquid methanol into gaseous methanol by the combustion waste heat, and uses the superconducting liquid for temperature control during the vaporization process, so that the temperature of the methanol vaporization process is always lower than the carbon deposition temperature during methanol vaporization. The overall structure is compact and simple, and it is stable and reliable in use.

Description

Technical Field

[0001] The present invention relates to the field of heating equipment, and particularly to a superconducting temperature-controlled vaporization burner. Background Art

[0002] Renewable clean fuels mainly composed of methanol have been widely used by people. They occupy a large market share in the catering industry, heating industry, and other fields.

[0003] In order to make methanol fuel burn more fully and thoroughly and emit more cleanly, methanol vaporization combustion is advocated. However, the vaporization temperature of methanol is difficult to control because methanol will undergo cracking and carbon deposition when vaporizing at a high temperature (288 °C), resulting in the equipment being unable to operate.

[0004] For example, in the patent document with the patent publication number "CN206269187U", the waste heat of methanol combustion is used to vaporize methanol, but the heat of the waste heat is not controlled. Carbon deposition will occur along with the vaporization, and the blockage of the gas outlet or fuel tank by carbon will cause the equipment to be unable to operate.

[0005] Another example is the patent document with the patent publication number "CN207365052U". During the vaporization process, the vaporization temperature is not controlled, and it cannot be guaranteed that there is no carbon deposition during the vaporization process; moreover, the overall structure of the device is complex and inconvenient to maintain. Summary of the Invention

[0006] The purpose of the present invention is to provide a burner that prevents carbon deposition during methanol vaporization, which can solve one or more of the above technical problems.

[0007] To achieve the above purpose, the technical solution proposed by the present invention is as follows:

[0008] A superconducting temperature-controlled vaporization burner, comprising a combustion unit, a fuel unit, and a vaporization temperature control unit. The fuel unit contains liquid methanol, and the combustion unit uses gaseous methanol as fuel.

[0009] The vaporization temperature control unit includes a temperature control chamber, a balance chamber, a circulation pipe, and a superconducting liquid; the circulation pipe connects the temperature control chamber and the balance chamber; the vaporization temperature of the superconducting liquid is A; 180 °C ≤ A ≤ 280 °C.

[0010] The temperature control chamber undergoes a phase change between the combustion unit and the fuel unit; the phase change occurring in the temperature control chamber all the time makes the vaporization temperature of methanol in the fuel unit always lower than the carbon deposition temperature during vaporization.

[0011] The balance chamber always balances the pressure of the temperature control chamber through the circulation pipe, allowing the superconducting liquid to ensure safe gas-liquid phase change within a certain pressure range.

[0012] In the present invention, through two connected chambers filled with a liquid whose vaporization temperature does not exceed the temperature at which methanol carbon deposition occurs (280 °C), methanol carbon deposition can be effectively prevented.

[0013] The specific working principle is as follows: The temperature control chamber is used to absorb the waste heat generated by the combustion of methanol in the combustion unit. Then, the superconducting liquid in the temperature control chamber is heated and vaporized in this chamber, undergoing a liquid-vapor phase change. During the process of the superconducting liquid heating and vaporizing, heat is transferred to the fuel unit, causing the methanol in the fuel unit to vaporize.

[0014] During the continuous vaporization of the superconducting liquid in the temperature control chamber, the pressure in this chamber is increased, and the liquid superconducting liquid in this chamber is pressed into the balance chamber through a circulation pipe to adjust the pressure. Subsequently, the temperature control chamber is filled with gas, resulting in a significant reduction in the heat conduction capacity of the temperature control chamber, which is equivalent to setting a heat insulation layer between the combustion unit and the fuel unit, preventing the methanol in the fuel unit from obtaining a higher temperature during the vaporization process.

[0015] However, at this time, the temperature is still within the vaporization temperature range of methanol, and methanol continuously vaporizes, but the vaporization temperature gradually decreases. When the vaporization temperature of methanol drops to a certain extent and the temperature difference with the temperature control chamber becomes larger, methanol absorbs heat from the temperature control chamber, causing some of the gas superconducting liquid in the temperature control chamber to liquefy, undergoing a gas-liquid phase change. The liquid superconducting liquid in the temperature control chamber continuously absorbs heat from the fuel unit and vaporizes to reach a new equilibrium. Under the temperature regulation during the phase change process of the superconducting liquid in the temperature control chamber, the vaporization temperature of methanol always remains below the carbon deposition temperature of 280 °C.

[0016] During the entire process, the balance chamber is used to adjust the amount of superconducting liquid in the temperature control chamber and the pressure in the temperature control chamber, and does not participate in the vaporization process of the fuel unit.

[0017] In the present invention, when the superconducting liquid is heated and vaporized, it does not completely vaporize into gas at once, but changes the degree of vaporization according to the temperature. When the temperature is too high, the degree of vaporization deepens, resulting in a large amount of superconducting liquid being vaporized. Therefore, the superconducting liquid level between the gas phase and the liquid phase will decrease, leading to a decrease in the heat conduction ability. Because the heat conduction ability of the liquid superconducting liquid is much greater than that of the gas phase; therefore, heat conduction can be achieved with the liquid superconducting liquid, and a certain degree of heat insulation can be achieved with the gaseous superconducting liquid during the gradual vaporization process; thus, methanol can be vaporized and the vaporization temperature of methanol can be controlled.

[0018] For safer use, an overflow valve is provided on the balance chamber to prevent excessive pressure and the inability of the liquid superconducting liquid to flow out.

[0019] Here, a specific structure of the combustion unit is provided. The combustion unit includes a combustion chamber, an ignition part, a spout, a fuel supply port, and a fire valve; the ignition part is located above the spout, and the fire valve is installed at the fuel supply port.

[0020] Here, the structure of a specific fuel unit is provided. The fuel unit includes a fuel storage chamber, a conduit, a feed port, and a discharge port. The upper end of the conduit is located within the fuel storage chamber, and the lower end of the conduit is in communication with the discharge port. The discharge port is in communication with the fuel supply port through a pipeline. The discharge port is located below, and the fuel is discharged under gravity. The feed port can be set at any position in the fuel storage chamber as long as it avoids the inlet of the conduit, and the fuel is injected using a pump below.

[0021] The inlet of the conduit is the upper end, and the outlet is the lower end; its flow direction is from top to bottom, which can not only ensure the fuel quantity in the fuel storage chamber but also not affect the direction of the fuel after vaporization in the fuel storage chamber.

[0022] Here, a preheating unit is also included: The preheating unit includes an air distribution box; the air distribution box is located below the flame nozzle, and the upper part of the air distribution box is open and has a certain distance from the flame nozzle.

[0023] In addition, to ensure sufficient combustion, a sedimentation cup is also included. The sedimentation cup includes a first inlet, a first outlet, and a sewage discharge port. The first outlet is in communication with the feed port; the sedimentation cup purifies the fuel before the fuel enters the fuel chamber.

[0024] Here, the first inlet is located at the upper part of the sedimentation cup to ensure that impurities are lined to the lower part, and the fuel located at the upper part is impurity-free or has fewer impurities. The sewage discharge port is located at the bottom of the sedimentation cup.

[0025] Furthermore: The vaporization temperature of the superconducting liquid is 200 °C.

[0026] Furthermore: The vaporization temperature of the superconducting liquid is 250 °C.

[0027] Here, the superconducting liquid can be directly customized and purchased from superconducting liquid manufacturers, which belongs to common technology; therefore, it is not necessary to disclose its specific components and the proportions of the components.

[0028] Furthermore: The superconducting liquid absorbs heat from the combustion unit and its temperature does not exceed 288 °C.

[0029] Here, to further ensure the stability of the vaporized methanol for use. Since heat spontaneously transfers from high temperature to low temperature and there is also energy loss during the phase change process, it is safer and more reliable to control the temperature during the heat transfer process when the temperature of the initial heat source remains constant.

[0030] The usage method of the superconducting temperature-controlled vaporization burner specifically includes the following steps:

[0031] S1 Prepare a superconducting liquid with a boiling point between 180 °C and 280 °C;

[0032] S2 Load the superconducting liquid into a superconducting container;

[0033] First, S3 extracts a part of the liquid fuel from the fuel unit and enters the combustion unit, ignites the fuel in the combustion unit, and generates an initial temperature by the fuel. The initial temperature preheats the superconducting liquid in the balance cavity, and the superconducting liquid heats up.

[0034] S4 The liquid methanol fuel in the fuel unit absorbs heat and vaporizes from the superconducting liquid in the temperature control cavity.

[0035] S5 Completely ignite the combustion unit, and let the fuel unit provide gaseous methanol fuel for the combustion unit, so that the combustion unit enters the complete combustion working state.

[0036] S6 When the temperature control unit is filled with gas, the heat conduction ability is greatly reduced; as a result, the methanol liquid cannot absorb heat sufficiently, and the vaporization temperature of methanol continuously decreases until the temperature of the fuel unit causes some gas in the temperature control cavity to be re-liquefied; through the phase change reaction of the superconducting liquid in the temperature control cavity, it is ensured that there is no carbon deposition during the vaporization process of methanol in the fuel unit.

[0037] The technical effect of the present invention is:

[0038] In the burner of the present invention, the liquid methanol is vaporized into gaseous methanol by the combustion waste heat, and the temperature control is carried out by using the superconducting liquid during the vaporization process, so that the temperature of the methanol vaporization process is always lower than the carbon deposition temperature of methanol vaporization. The overall structure is compact and simple, and the use is stable and reliable. Description of the Drawings

[0039] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0040] In the drawings:

[0041] Figure 1 is the overall structure schematic diagram of the present invention;

[0042] Figure 2 The flow schematic diagram of methanol gas or liquid. Detailed Embodiments

[0043] The present invention will be described in detail below in conjunction with the drawings and specific embodiments. The schematic embodiments and descriptions therein are only used to explain the present invention and do not constitute an improper limitation to the present invention.

[0044] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] As Figure 1 shown, the specific structural forms of the combustion unit 100, the fuel unit 200, and the vaporization temperature control unit 300 are shown here. The fuel unit contains liquid methanol 205, and the combustion unit uses gaseous methanol as fuel; the vaporization temperature control unit contains superconducting liquid. The vaporization temperature of the superconducting liquid is A; 180°C ≤ A ≤ 280°C.

[0047] In Figure 1 the combustion unit includes a combustion chamber 101, an ignition part 102, a flame outlet 103, a fuel supply port 104, and a fire valve 105; the ignition part 102 is above the flame outlet 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 gaseous methanol to adjust the combustion situation during the complete combustion of the combustion unit.

[0048] It further includes a preheating unit, and the preheating unit includes an air distribution box 401; the air distribution box is located below the flame outlet 103, and the upper part of the air distribution box is open and has a certain distance from the flame outlet. In Figure 1 the air distribution box is used to receive the liquid fuel flowing out of the flame outlet and allows natural wind or air to flow into the combustion chamber from below the flame outlet, so that the fuel burns fully in the combustion chamber.

[0049] The fuel unit 200, the fuel unit includes a fuel storage chamber 201, a conduit 202, a feed port 203, and a discharge port 204. The upper end of the conduit is located in the fuel storage chamber, the lower end of the conduit is communicated with the discharge port, and the discharge port is communicated with the fuel supply port through a pipeline.

[0050] The vaporization temperature control unit 300 includes a temperature control chamber 301, a balance chamber 302, a circulation pipe 303, and a superconducting liquid 304; the circulation pipe 303 communicates the temperature control chamber 301 and the balance chamber 302; the temperature control chamber 302 undergoes a phase change between the combustion unit 100 and the fuel unit 200; specifically, there are two phase change processes: one is that the combustion waste heat of the combustion unit causes the superconducting liquid in the temperature control chamber to undergo a liquid-vapor phase change (the liquid superconducting liquid 304 vaporizes into a gaseous superconducting liquid 305) in the temperature control chamber, and the fuel unit absorbs heat from the temperature control chamber to vaporize the methanol inside; the vaporized methanol enters the combustion chamber through the conduit and burns.

[0051] Second, the vaporization temperature of methanol in the fuel unit causes the superconducting liquid gas in the temperature control unit to undergo a gas-liquid phase transition (the gas superconducting liquid 305 liquefies into a liquid superconducting liquid 304), causing the fuel unit to absorb heat from the temperature control cavity to allow the methanol inside to vaporize again;

[0052] Therefore, the phase change that has been occurring in the temperature control cavity makes the vaporization temperature of the methanol 205 in the fuel unit always lower than the vaporization carbon deposition temperature (280°C); during the phase change process of the superconducting liquid in the temperature control cavity, the pressure is always adjusted by the balance cavity 302. Mainly, when the liquid-to-gas phase change occurs in the temperature control cavity, the pressure in the temperature control cavity gradually increases. In order to ensure safety, the gradually increasing pressure is balanced by the balance cavity.

[0053] In addition, before the liquid methanol 205 fuel enters the fuel storage chamber, the fuel needs to be purified, so it also includes a sedimentation cup 500, which includes a first inlet 501, a first outlet 502, and a sewage outlet 503. The first outlet is connected to the feed port; the sedimentation cup purifies the fuel before the fuel enters the fuel chamber.

[0054] Here, the temperature control chamber is set close to the combustion chamber, and the fuel storage chamber is set close to the temperature control chamber. The balance chamber is connected to the temperature control chamber through a circulation pipe. The balance chamber always balances the pressure of the temperature control chamber through the circulation pipe, so that the superconducting liquid can ensure a safe gas-liquid phase transition within a certain pressure range. The balance chamber does not participate in heat absorption and heat release. In order to make the structure compact and simple, it is possible to consider setting a vacuum layer between the fuel storage chamber and the balance chamber. Here, the balance chamber is provided with a superconducting liquid inlet, and the inlet is set at the upper part of the balance chamber.

[0055] like Figure 2 As shown by the arrow in the middle, there are two processes of methanol entering the combustion unit from the fuel unit. The methanol liquid flows from the flame outlet into the air distribution box for preheating; and the preheated methanol gas flows upward from the flame outlet into the combustion chamber for combustion.

[0056] The specific operation process of this burner is as follows:

[0057] S1 prepares a superconducting liquid with a boiling point of 200°C;

[0058] S2 puts the superconducting liquid into the superconducting container;

[0059] S3 first extracts part of the liquid fuel from the fuel unit and enters the combustion unit, ignites the fuel in the combustion unit, and generates an initial temperature of the fuel. The initial temperature preheats the superconducting liquid in the balance cavity, and the superconducting liquid heats up;

[0060] The liquid methanol fuel in the S4 fuel unit absorbs heat from the superconducting liquid in the temperature control chamber and vaporizes;

[0061] S5 completely ignites the combustion unit, allowing the fuel unit to provide gaseous methanol fuel to the combustion unit, so that the combustion unit enters a complete combustion working state;

[0062] When the temperature control unit is filled with gas, its heat conduction capacity is greatly reduced, resulting in the inability of the methanol liquid to absorb heat sufficiently, and the vaporization temperature of methanol continues to drop until the temperature of the fuel unit causes some of the gas in the temperature control cavity to re-liquefy. The phase change reaction of the superconducting liquid in the temperature control cavity ensures that there is no carbon deposition during the vaporization of methanol in the fuel unit.

[0063] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Superconducting temperature-controlled vaporization burner, characterized in that: It includes a combustion unit, a fuel unit, and a vaporization temperature control unit. The fuel unit contains liquid methanol, and the combustion unit uses gaseous methanol as fuel. The vaporization temperature control unit includes a temperature control chamber, a balance chamber, a circulation pipe, and a superconducting fluid. The circulation pipe connects the temperature control chamber and the balance chamber. The vaporization temperature of the superconducting fluid is A; 180°C ≤ A ≤ 280°C. The temperature control chamber is sandwiched between the combustion unit and the fuel unit. The combustion waste heat of the combustion unit causes the superconducting fluid in the temperature control chamber to undergo a phase change in the temperature control chamber. The continuous phase change in the temperature control chamber keeps the vaporization temperature of methanol in the fuel unit always lower than the vaporization carbon deposition temperature. The balance chamber always balances the pressure of the temperature control chamber through the circulation pipe, enabling the superconducting fluid to ensure safe gas-liquid phase change within a certain pressure range. The fuel unit includes a fuel storage chamber, a conduit, a feed port, and a discharge port. The upper end of the conduit is located in the fuel storage chamber, and the lower end of the conduit is connected to the discharge port. The discharge port is connected to the fuel supply port through a pipeline. The feed port is set at any position in the fuel storage chamber avoiding the inlet of the conduit, and fuel is injected by a pump below.

2. The superconducting temperature-controlled vaporizing burner according to claim 1, wherein: The combustion unit includes a combustion chamber, an ignition part, a spout, a fuel supply port, and a fire valve. The ignition part is located above the spout, and the fire valve is installed at the fuel supply port.

3. The superconducting temperature-controlled vaporizing burner according to claim 2, wherein: It also includes a preheating unit, and the preheating unit includes a air distribution box. The air distribution box is located below the spout, with an open upper end and a certain distance from the spout.

4. The superconducting temperature-controlled vaporizing burner according to claim 3, wherein: It also includes a sedimentation cup. The sedimentation cup includes a first inlet, a first outlet, and a sewage outlet. The first outlet is connected to the feed port. The sedimentation cup purifies the fuel before the fuel enters the fuel chamber.

5. The superconducting temperature-controlled vaporizing burner according to claim 1, characterized in that: The vaporization temperature of the superconducting fluid is 200°C.

6. The superconducting temperature-controlled vaporizing burner according to claim 1, characterized in that: The vaporization temperature of the superconducting fluid is 250°C.

7. The method for using the superconducting temperature-controlled vaporizing burner according to claim 1, characterized in that Specifically, it includes the following steps: S1 Prepare a superconducting fluid with a boiling point between 180°C and 280°C. S2 Load the superconducting fluid into a superconducting container. S3 First, extract a part of the liquid fuel from the fuel unit into the combustion unit, ignite the fuel in the combustion unit, and let the initial temperature generated by the fuel preheat the superconducting fluid in the balance chamber, causing the superconducting fluid to heat up. S4 The liquid methanol fuel in the fuel unit absorbs heat and vaporizes from the superconducting fluid in the temperature control chamber. S5 Completely ignite the combustion unit, allowing the fuel unit to provide gaseous methanol fuel for the combustion unit, enabling the combustion unit to enter the complete combustion working state. S6 When the temperature control unit is filled with gas, the heat conduction ability is greatly reduced; as a result, the methanol liquid cannot absorb heat sufficiently, leading to a continuous decrease in the vaporization temperature of methanol until the temperature of the fuel unit causes some gas in the temperature control chamber to re-liquefy. The phase change reaction of the superconducting fluid in the temperature control chamber ensures that there is no carbon deposition during the vaporization process of methanol in the fuel unit.

Images