WO2013016847A1 - 一种液体燃料气化燃烧的壁炉 - Google Patents

一种液体燃料气化燃烧的壁炉 Download PDF

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Publication number
WO2013016847A1
WO2013016847A1 PCT/CN2011/001372 CN2011001372W WO2013016847A1 WO 2013016847 A1 WO2013016847 A1 WO 2013016847A1 CN 2011001372 W CN2011001372 W CN 2011001372W WO 2013016847 A1 WO2013016847 A1 WO 2013016847A1
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WO
WIPO (PCT)
Prior art keywords
liquid fuel
chamber
gasification
burner
combustion
Prior art date
Application number
PCT/CN2011/001372
Other languages
English (en)
French (fr)
Inventor
周炜
Original Assignee
宁波丽辰电器有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波丽辰电器有限公司 filed Critical 宁波丽辰电器有限公司
Priority to US14/233,173 priority Critical patent/US9388989B2/en
Priority to EP11870397.4A priority patent/EP2738475B1/en
Publication of WO2013016847A1 publication Critical patent/WO2013016847A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/191—Component parts; Accessories
    • F24B1/199—Fuel-handling equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/002—Gaseous fuel
    • F23K5/007—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/44—Preheating devices; Vaporising devices
    • F23D11/441—Vaporising devices incorporated with burners
    • F23D11/448—Vaporising devices incorporated with burners heated by electrical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/10—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/28—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F23K5/20—Preheating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F23K5/22—Vaporising devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C5/00—Stoves or ranges for liquid fuels
    • F24C5/02—Stoves or ranges for liquid fuels with evaporation burners, e.g. dish type

Definitions

  • the present invention relates to a fireplace, and more particularly to a fireplace that is vaporized by liquid fuel. Background technique
  • liquid fuel has become a kind of clean energy with less pollution. It has the characteristics of lighter than solid fuel of the same amount of heat and occupying less space. At the same time, it has the advantages of convenient storage of gas fuel and smaller pipelines.
  • the Chinese utility model "Convection Liquid fireplace Heating Device” with the patent number ZL201020033207.6 provides a convection liquid fireplace heating device
  • Both of the above-mentioned patented fireplaces use liquid fuel for fuel.
  • the liquid fuels of both patents use direct combustion of liquid fuel during combustion. This method not only makes the combustion of liquid fuel insufficient, but also has low combustion efficiency.
  • the gasification of the liquid fuel and then combustion can make the fuel have the advantages of low temperature, easy combustion control and good combustion flame.
  • the liquid fuel is burned by means of vaporizing the liquid fuel.
  • the current liquid fuel gasification unit structure is relatively complicated, and the fuel in the combustion cup is preheated by pre-heating. In the ignition process, the liquid fuel is usually exposed to the air, and there is still some safety. Hidden dangers. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a fireplace that uses a liquid fuel gasification combustion with a simple structure, a convenient installation, and a high combustion efficiency in view of the above state of the art.
  • a fireplace for liquid fuel gasification combustion comprising a furnace body with a furnace chamber, wherein the furnace body forms a furnace capable of accommodating the combustion device at the bottom of the furnace chamber a chamber, a front portion of the furnace body is further provided with a flame observation port communicating with the furnace chamber, wherein: the combustion device comprises a liquid supply device, a gasification chamber and a burner, and The top of the chamber is provided with a slot for the burner to pass through and is exposed in the cavity, wherein the burner is provided with a flame spray hole, and the gasification chamber is provided with liquid fuel addition a port and an outlet, the liquid fuel addition port of the gasification chamber is in communication with the liquid supply device, the gas outlet of the gasification chamber is in communication with the burner, and the body of the burner is higher than The burner and the gasification chamber
  • connection port is provided, and the gasification chamber is further provided with an electric heating device capable of providing heat required for vaporization of the liquid fuel.
  • the front portion of the furnace body is further provided with a detachable furnace door, and the flame observation port is opened on the furnace door.
  • the bottom of the gasification chamber is provided with a through hole penetrating in the longitudinal direction, and the electric heating device is inserted into the through hole.
  • the electric heating device can be installed on the outer side wall of the gasification chamber, or the electric heating device can be directly installed in the inner cavity of the gasification chamber, and the electric heating device is installed on the outer side wall of the gasification chamber, so that the installation is easy and convenient, and the assembly is convenient. And maintenance.
  • the electric heating device can be realized by various electric heating methods in the prior art.
  • the electric heating device is a metal electric heating tube or a PTC heating element or a heating resistance wire or an electromagnetic induction heating coil.
  • the shape of the burner may be a burner of various structures and shapes in the prior art.
  • the burner is preferably tubular, and may be a straight tube structure or The elbow structure, the flame ejecting holes are spaced apart along the length of the tube wall of the burner, the gasification chamber is provided with an air outlet at the top, and the gas outlet of the gasification chamber is respectively connected with the tube of the burner The mouth is connected.
  • the air outlet on the gasification chamber may also be opened on the side of the gasification chamber.
  • the top or side of the gasification chamber may only have one air outlet, or two or more air outlets may be opened.
  • the burner is provided with a connection port which can correspond to the air outlet of the gasification chamber, and the nozzle of the burner can also be bent one or more times according to the required angle.
  • the combustion apparatus further includes an electric control device capable of controlling heating power of the electric heating device and controlling the electric heating device to stop working, the burner being ejected near the flame
  • the position of the hole is provided with an igniter
  • the burner is further provided with a flame detecting device capable of detecting whether the flame of the burner is in a normal combustion state near the flame spraying hole, the igniter and the flame detecting device
  • the electric heating device is electrically connected by an electric control device, respectively. Therefore, after the power is turned on, the igniter can realize the automatic ignition of the burner under the control of the electronic control device, and the flame detecting device is used to detect whether the flame of the burner is in a normal state when the flame is burning normally.
  • the electric heating device works normally; when the flame combustion is in an abnormal state (such as the ignition cannot be ignited, the flame is suddenly extinguished, etc.), at this time, the flame detecting device sends a signal to the electric control device, and the electric control device controls the electric heating device to stop working. .
  • the outer side wall of the gasification chamber is provided with a temperature sensor capable of detecting the operating temperature of the gasification chamber, the temperature The sensor is also electrically connected to the electronic control unit.
  • the temperature sensor detects that the operating temperature in the gasification chamber is higher than the preset temperature, in order to prevent the gasification chamber from overheating, the temperature sensor sends a signal to the electronic control device, and the electronic control device can further change the heating power of the electric heating device, thereby reducing Heat the power and, if necessary, cut off the power to the electric heating unit in time to stop working.
  • the liquid supply device comprises a liquid fuel tank and a supply pipe, and the liquid supply port of the liquid fuel tank and the liquid fuel supply port of the gasification chamber are connected by the supply pipe, the feeding a liquid is also provided on the tube
  • An electromagnetic pump that delivers power to the fuel, the electromagnetic pump being electrically connected to the electronic control device.
  • the electromagnetic pump can realize the automatic control of liquid fuel delivery and improve the automatic control of the feed.
  • the top of the gasification chamber is provided with a liquid level hole
  • the liquid level sensor is provided with a liquid level sensor electrically connected to the electric control device, and the liquid level is provided.
  • the sensor transmits the detected liquid level signal to the electronic control device, and in the liquid fuel excess state in the gasification chamber, the electronic control device controls the electromagnetic pump to be turned off, and the liquid fuel in the gasification chamber In the insufficient state, the electronic control device controls the electromagnetic pump to open or control the electric heating device to stop working.
  • the liquid level sensor can judge the liquid fuel in the gasification chamber, thereby realizing the automatic control of the electromagnetic pump and the electric heating device, realizing the automatic control degree of each device and ensuring the safety of use.
  • a liquid level chamber can be separately set up for accommodating a liquid level sensor electrically connected to the electric control device, and the liquid level chamber can be separately connected with the electromagnetic pump and the gas through the pipeline.
  • the chamber is connected.
  • the electric control device is connected with a carbon dioxide sensor for detecting the concentration of carbon dioxide in the current indoor air.
  • the carbon dioxide sensor transmits a signal to the electronic control device, and the electric control device turns off the power supply of the electric heating device of the gasification chamber and the electromagnetic pump power supply of the liquid supply device, thereby fully ensuring the use. Personal safety.
  • the fireplace adopts a liquid fuel gasification combustion method, and the fuel combustion mode of the fireplace is cleaner, environmentally friendly, and the combustion efficiency is higher than that of the conventional method of burning solid fuel.
  • the small volume of liquid fuel makes the overall structure design of the fireplace more compact.
  • the gasification chamber is directly heated by an electric heating device, which enables the fuel to be supplied for liquid fuel gasification without preheating. The heat makes the overall structure of the gasification burner simpler, and the gasification process is more simplified.
  • the temperature of the burner is lower than the boiling point of the liquid fuel at the beginning of combustion, the partially vaporized liquid fuel enters the burner and recondenses.
  • the burner body of the present invention is higher than the interface connecting the burner and the gasification chamber, and the liquid fuel which can be easily condensed into the burner and recirculated into the combustion chamber flows back to the gasification chamber by its own gravity to ensure the full combustion of the fuel. Improve combustion efficiency.
  • FIG. 1 is a schematic view showing the structure of a fireplace according to Embodiment 1 of the present invention.
  • Figure 2 is a cross-sectional view of the fireplace of Figure 1.
  • Fig. 3 is a schematic view showing the structure of a liquid burning apparatus according to a first embodiment of the present invention.
  • Figure 4 is a cross-sectional view showing the assembly of the gasification chamber and the burner shown in Figure 3.
  • FIG. 5 is a schematic structural view of a fireplace according to a second embodiment of the present invention. .
  • FIG. 6 is a schematic structural view of a liquid combustion apparatus according to a second embodiment of the present invention.
  • Fig. 7 is a schematic view showing another structure of the burner shown in Fig. 6. detailed description
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • this embodiment is a fireplace using liquid fuel gasification combustion.
  • the fireplace includes a furnace body 6.
  • the furnace body 6 is internally provided with a furnace chamber 61, and the front portion of the furnace body 6 is also opened and
  • the furnace chamber 61 is connected to the flame observation port 62, and the furnace body 6 further forms a chamber 63 at the bottom of the furnace chamber 61.
  • the combustion chamber of the liquid fuel gasification combustion is placed in the chamber 63;
  • the combustion device includes a gasification chamber 1, a burner 2, an electric heating device 3, a liquid fuel tank 4, and a supply pipe 5, wherein the top surface 632 of the chamber 63 is provided with a slot 631 through which the burner passes.
  • the hole 631 is exposed in the furnace chamber 61.
  • the liquid fuel supply port 11 is opened on the side of the gasification chamber 1.
  • the discharge port 41 is opened on the side wall of the liquid fuel tank 4, and the two ends of the supply pipe 5 are respectively connected. Feed port 41 and liquid fuel addition port 11;
  • the burner 2 of the present embodiment adopts a straight tube structure, and the burner 2 is provided with a plurality of flame spraying holes 21 spaced apart in the longitudinal direction at the top, and at least one air outlet is opened at the top of the gasification chamber 1.
  • Two outlet ports are opened at the top of the gasification chamber 1, and correspondingly, the nozzles 22 at both ends of the burner 2 are vertically bent downward, and the two outlet ports of the gasification chamber 1 are respectively connected with the nozzles at both ends of the burner 2.
  • the connection 22 corresponds to the connection; considering the start of combustion, the temperature of the burner 2 is lower than the boiling point of the liquid fuel, and the partially vaporized liquid fuel will recondense into liquid after entering the burner 2, therefore, the body of the burner 2 is slightly higher Provided at the connection port of the burner 2 and the gasification chamber 1, the liquid fuel which is convenient for condensation is recirculated back to the gasification chamber 1 by its own gravity, thereby ensuring the sufficiency of combustion and improving the combustion efficiency;
  • the electric heating device 3 can be a heating element realized by various existing heating methods, and can mainly provide heat required for vaporization of the liquid fuel, such as a metal electric heating tube or a PTC heating element or a heating resistance wire or an electromagnetic induction heating coil. Etc., the electric heating device 3 can be installed close to the outer side wall of the gasification chamber 1, or can be directly installed in the closed chamber of the gasification chamber 1. For the convenience of installation and maintenance, the electric heating device 3 of the present embodiment adopts A metal heating tube is provided at the bottom of the gasification chamber 1 with a through hole extending through the length direction, and a metal heating tube is inserted into the through hole, see FIG.
  • the liquid fuel enters the gasification chamber 1 from the liquid fuel supply port 11 of the gasification chamber 1.
  • the electric heating device 3 is turned on, the liquid fuel in the gasification chamber 1 is heated and expanded by the electric heating device 3, and generates pressure.
  • the vaporized fuel enters the combustor 2 from the air outlet of the gasification chamber 1.
  • the combustion, ignition mode can be manually ignited or ignited; when the valve is closed, the supply pipe 5 stops the supply of liquid fuel, and the electric heating device 3 is turned off to stop the operation of the entire combustion device.
  • the fireplace of the embodiment adopts a combustion device capable of vaporizing and burning liquid fuel, and the combustion device is heated by an electric heating device, and the combustion heat of a large amount of liquid fuel can be obtained by using a small amount of electric energy, thereby not only eliminating the prior art.
  • the preheating process of the liquid fuel combustion simplifies the heating process. When the electric heating device is turned on, the liquid fuel can be continuously and stably vaporized, the cost is low, the heating efficiency is high, and the energy saving is more energy-saving.
  • Embodiment 2 is a combustion device capable of vaporizing and burning liquid fuel, and the combustion device is heated by an electric heating device, and the combustion heat of a large amount of liquid fuel can be obtained by using a small amount of electric energy, thereby not only eliminating the prior art.
  • the preheating process of the liquid fuel combustion simplifies the heating process. When the electric heating device is turned on, the liquid fuel can be continuously and stably vaporized, the cost is low, the heating efficiency is high, and the energy saving is
  • the fireplace of the second embodiment includes a furnace body 9'.
  • the furnace body 9' is internally provided with a furnace chamber 9', and the front portion of the furnace body 9' is provided with a detachable furnace door 92'.
  • the furnace door 92' is provided with a flame observation port 92 ⁇ communicating with the furnace chamber 9 ⁇ , and the furnace body 9' forms a chamber 93' at the bottom of the furnace chamber 9 ⁇ , and the combustion of the liquid fuel gasification combustion is placed in the chamber 93'.
  • the combustion apparatus of the second embodiment also has a gasification chamber 1', a burner 2', an electric heating device 3', a liquid fuel tank 4' and a supply pipe 5', between the liquid fuel tank 4' and the gasification chamber 1'.
  • the feed pipe 5' is connected, and an electromagnetic pump 51' for providing liquid fuel delivery power is further disposed on the supply pipe 5'.
  • the top of the liquid fuel tank 4' is provided with a liquid supply port 41', and the liquid fuel tank 4' A liquid level indicator 42' is also mounted on the top.
  • the structure of the burner 2' used in the present embodiment is the same as that of the first embodiment.
  • the top of the burner 2' is also provided with a flame ejection hole 21'.
  • the top surface of the chamber 93' is provided with a slot 931', and the burner 2' is just right.
  • the burner can also adopt other structures, such as the elbow structure shown in Figure 7, or a disc structure;
  • the electric heating device 3' and the mounting method used in the present embodiment are also the same as those in the first embodiment, and will not be described herein.
  • the burner 2' of the present embodiment is provided with an igniter 7' at a position where one side is close to the flame ejection hole 2?, and the burner 2' is provided with a flame detecting device 8' at a position close to the flame ejection hole 2?
  • the flame detecting device 8' is configured to detect whether the flame of the burner 2' is in a normal combustion state, and the outer side wall of the gasification chamber is provided with a temperature sensor 11' capable of detecting the operating temperature in the gasification chamber Is it in a normal state, the gasification chamber ⁇ is also provided with a liquid level hole at the top, the liquid level sensor is provided with a liquid level sensor 12', and the liquid level sensor 12' is used for detecting the liquid level height of the liquid fuel in the gasification chamber Whether it is in a normal state, in order to further improve the accuracy of the liquid level detection, a liquid level chamber can also be separately set up for accommodating the liquid level sensor 12', and the liquid level chamber can be respectively connected to the electromagnetic pump 5 ⁇ and the gasification chamber through the pipeline ⁇ ; wherein, the electromagnetic pump 51 ', the igniter 7', the flame detecting device 8', the temperature sensor 1, the liquid level sensor 12' and the electric heating device 3' are electrically connected to the electronic control device 6' by wires, respectively And a
  • the igniter 7' can realize the automatic ignition of the burner 2' under the control of the electronic control device 6', when the flame detecting device 8' detects that the flame ejection port has In the case of a flame, a signal is sent to the electronic control unit 6', the electronic control unit 6' controls the igniter 7' to be turned off, and the burner 2' achieves stable combustion;
  • the flame detecting device 8' detects that the burner 2' is abnormally burned (for example, the igniter 7' cannot be normally ignited, the burner 2' flame is abnormally extinguished, or the combustion is unstable, etc.), at this time, the flame detecting device 8 'Send feedback signal to the electronic control device 6', and the electronic control device 6' further controls the electric heating device 3' to stop working and perform troubleshooting;
  • the temperature sensor 1 ⁇ detects that the temperature in the gasification chamber is too high, the temperature sensor 1 ⁇ feeds back the temperature signal to the electric control device 6', and the electric control device 6' can change the heating power of the electric heating device 3', such as stopping the heating. Or reduce the heating power, thereby ensuring that the heating temperature in the gasification chamber 1' is at a normal level, preventing the gasification chamber from overheating;
  • a pressure sensor (not shown) electrically connected to the electric control device 6' may be disposed in the gasification chamber, and the pressure sensor and the temperature sensor 1 are double-protected, and the pressure sensor detects the gasification.
  • the pressure signal of the internal gasification fuel is transmitted to the electric control device 6'.
  • the electronic control device 6' can turn off the electricity set on the gasification chamber.
  • a power supply for the heating device and an electromagnetic pump power supply disposed on the liquid supply device;
  • the liquid level sensor 12' When the liquid level sensor 12' detects an excess of liquid fuel in the gasification chamber, the liquid level sensor 12' feeds back the liquid level signal to the electronic control unit 6', and the electronic control unit 6' sends a control signal to the electromagnetic pump 51'. Turning it off, the liquid fuel tank 4' stops supplying fuel to the gasification chamber, and when the liquid level sensor 12' detects that the liquid fuel in the gasification chamber is insufficient, the liquid level sensor 12' feeds back the liquid level signal to the electricity.
  • the control device 6', the electronic control device 6' controls the electromagnetic pump 5 ⁇ to open, supplies liquid fuel to the gasification chamber, or the electronic control device 6' controls the electric heating device 3' to stop working, preventing the gasification chamber from overheating or causing dryness. burn.
  • the electric control device 6' is also connected with a carbon dioxide sensor 61' for detecting the concentration of carbon dioxide in the current indoor air, when the concentration of carbon dioxide in the indoor air exceeds the set value.
  • the electric control device 6' can control the combustion device in the fireplace to stop working, thereby fully ensuring the personal safety of the user;
  • a room temperature sensor 62' dedicated to detecting the room temperature and a furnace temperature sensor 63' dedicated to detecting the temperature in the furnace chamber of the fireplace may be connected to the electronic control unit 6', through the room temperature and the furnace.
  • the temperature measurement can realize the automatic detection and regulation of the combustion temperature of the fireplace to better save energy and improve the comfort of use;
  • the burning device further comprises a decorative light board 64' which is also electrically connected to the electronic control unit 6'.
  • the decorative light board 64' is used for decorative lighting inside or outside the furnace body 9' for manufacturing a more beautiful appearance. Rich visual effects; decorative lighting board 64, the lighting can use ordinary energy-saving lamps, fluorescent lamps, LEDs, etc., especially the three primary color (RGB) LED light groups, through control can produce different colors, brightness of light effects, combined with liquid fuel The flame of gasification burns creates a warmer, more romantic atmosphere.
  • RGB three primary color
  • the control mode of the electronic control device 6' in this embodiment can be implemented by using various control devices (such as a single chip microcomputer, a PLC, etc.) and a control circuit of the prior art.
  • the control circuit and the device are not the main contents to be protected in this embodiment. This details a detailed description of the structure and control circuit of the electronic control unit 6'.
  • the heating power of the electric heating device 3' can be adjusted by the cooperation of the electronic control device 6', thereby changing the gasification amount of the liquid fuel, and finally achieving accurate and continuous adjustment of the combustion power of the liquid fuel gasification combustion device. Make the work of the combustion device safer and more reliable.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spray-Type Burners (AREA)
  • Control Of Combustion (AREA)

Abstract

一种液体燃料气化燃烧的壁炉，包括开设有炉腔（61；91'）的炉体（6；9'），炉体（6；9'）在该炉腔（61；91'）的底部形成可容置燃烧装置的腔室（63；93'），炉体（6；9'）的前部还开设有火焰观察口（62；921'），燃烧装置包括供液装置、气化室（1；1'）和燃烧器（2；2'），腔室（63；93'）的顶部开设有供燃烧器（2；2'）外露的槽孔（631；931'），燃烧器（2；2'）上开设有火焰喷出孔（21；21'），气化室（1；1'）开设有液体燃料添加口（11）和出气口，气化室（1；1'）的液体燃料添加口（11）和供液装置相连通，气化室（1；1'）的出气口和燃烧器（2；2'）相连通，燃烧器（2；2'）的主体高于该燃烧器（2；2'）和气化室（1；1'）连接口设置，气化室（1；1'）还安装有电加热装置（3；3'）。该壁炉采用液体燃料气化燃烧的方式，更加清洁、环保，燃烧效率更高；采用电加热装置（3；3'）对气化室（1；1'）直接进行加热，无需预加热就能够提供液体燃料气化所需的热量，整体结构更为简单，气化过程更加简化。

Description

一种液体燃料气化燃烧的壁炉 技术领域
本发明涉及到一种壁炉， 特别是一种用液体燃料气化燃烧的壁炉。 背景技术
传统的壁炉取暖多采用固体燃料的加热方式， 由于固体燃料本身储存体积大，使得 传统壁炉的占用面积较大， 而且燃烧效率低， 节能效果差。
随着科技的不断发展，液体燃料成为一种污染少的清洁能源，它具有比同量热能的 固体燃料轻、占用空间少的特点， 同时又具有比气体燃料储存方便、所用管道小等优点。 如专利号为 ZL201020033207.6的中国实用新型 《对流式液体壁炉取暖装置》 就提供了 一种对流式液体壁炉取暖装置、 专利号为 ZL200920263443.4的中国实用新型 《一种自 动燃油式壁炉》涉及一种自动燃油式壁炉。上述两个专利的壁炉都采用了液体燃料进行 燃料， 但是， 两个专利中的液体燃料在燃烧时都采用液体燃料直接燃烧的方式， 这种方 式不仅使得液体燃料的燃烧不够充分， 燃烧效率低下， 而且无法有效控制液体燃料的燃 烧。而将液体燃料气化后再燃烧就能够使得燃料具有温度低、燃烧容易控制和燃烧火焰 好等优点， 为了提高液体燃料的燃烧效率， 于是人们采用将液体燃料气化的方式实现液 体燃料的燃烧， 但目前液体燃料气化装置结构都较为复杂， 而且都要先通过引燃预热燃 烧杯内的燃料进行预热， 在引燃过程中， 液体燃料通常曝露在空气中， 还存在一定的安 全隐患。 发明内容
本发明所要解决的技术问题是针对上述现有技术现状而提供一种结构简单、安装方 便且燃烧效率高的采用液体燃料气化燃烧的壁炉。
本发明解决上述技术问题所采用的技术方案为：一种液体燃料气化燃烧的壁炉，包 括开设有炉腔的炉体， 所述炉体在该炉腔的底部形成一能容置燃烧装置的腔室， 所述炉 体的前部还开设有和所述炉腔相连通的火焰观察口， 其特征在于： 所述的燃烧装置包括 有供液装置、 气化室和燃烧器， 并且， 所述腔室的顶部开设有供所述燃烧器穿过并外露 于所述炉腔内的槽孔， 其中， 所述燃烧器上开设有火焰喷出孔， 所述气化室开设有液体 燃料添加口和出气口， 所述气化室的液体燃料添加口和所述供液装置相连通， 所述气化 室的出气口和所述燃烧器相连通， 并且， 所述燃烧器的主体高于该燃烧器和所述气化室
- 1 - 确认本 连接口设置， 所述气化室还安装有能提供液体燃料气化所需热量的电加热装置。
为了便于燃烧装置的安装和维护，作为优选，所述炉体的前部还设置有可拆卸的炉 门， 所述火焰观察口开设在所述炉门上。
为了方便电加热装置的安装， 并提高安装的可靠性， 作为优选，所述的气化室的底 部开设有沿长度方向贯穿的通孔， 所述电加热装置插设于该通孔内。 电加热装置可以安 装在气化室的外侧壁上， 也可以将电加热装置直接安装在气化室的内腔中， 电加热装置 安装在气化室的外侧壁上使得安装容易方便， 便于装配和维护。
所述的电加热装置可以采用现有技术中各种电加热方式来实现，作为优选，所述的 电加热装置为金属电加热管或 PTC加热元件或加热电阻丝或电磁感应加热线圈。
所述燃烧器的形状可以采用现有技术中各种结构和形状的燃烧器，为了节省安装空 间，减小体积， 作为优选，所述的燃烧器呈管状， 可以为直管结构， 也可以为弯管结构， 所述的火焰喷出孔沿该燃烧器的管壁长度方向间隔开设， 所述气化室顶部开设有出气 口， 所述气化室的出气口分别与所述燃烧器的管口对应相连。 为了便于安装， 所述气化 室上的出气口， 也可以开设在气化室的侧面， 该气化室的顶部或侧面可以只开设一个出 气口， 也可以开设两个以上的出气口， 相应地， 燃烧器上就设置有能与气化室的出气口 分别一一对应的连接端口，并且燃烧器的管口亦可以根据需要角度进行一次或者多次的 弯折。
为了实现自动点火控制，作为优选，所述燃烧装置还包括有一能控制所述电加热装 置的加热功率并控制该电加热装置停止工作的电控装置，所述燃烧器在靠近所述火焰喷 出孔的位置设置有点火器，所述燃烧器在靠近所述火焰喷出孔的位置还设置有能检测所 述燃烧器的火焰是否处于正常燃烧状态的火焰检测装置， 所述点火器、火焰检测装置和 所述电加热装置分别通过电控装置实现电连接。 于是， 在接通电源后， 点火器能够在电 控装置的控制下实现对燃烧器的自动点火，而火焰检测装置则用于检测燃烧器燃烧时的 火焰是否处于正常状态， 当火焰燃烧正常时， 电加热装置正常工作； 当火焰燃烧处于非 正常状态时 （如点火器无法点火、 火焰突然熄灭等）， 此时， 火焰检测装置发送信号给 电控装置， 电控装置控制电加热装置停止工作。
为了进一步保证燃烧装置的使用安全性，并且有效控制气化室的加热功率，作为进 一步优选， 所述气化室的外侧壁上设置有能检测该气化室内工作温度的温度传感器， 所 述温度传感器也电连接在所述的电控装置上。当温度传感器检测到气化室内的工作温度 高出预设温度时， 为了防止气化室过热， 温度传感器发送信号给电控装置， 电控装置进 而能够改变电加热装置的加热功率， 从而减小加热功率， 并且在必要时及时切断电加热 装置电源， 使之停止工作。
作为优选， 供液装置包括有液体燃料箱和供料管， 所述液体燃料箱的出液口和所 述气化室的液体燃料添加口之间通过所述供料管相连，所述供料管上还设置有提供液体 燃料输送动力的电磁泵， 所述电磁泵电连接在所述电控装置上。 电磁泵可以实现液体燃 料输送的自动控制， 提高进料的自动化控制程度。
为了提高气化燃烧的可靠性和安全性， 作为优选， 所述气化室顶部开设有液位孔， 该液位孔内设置有和所述电控装置电相连的液位传感器，该液位传感器将检测到的液位 信号传送给所述电控装置， 在所述气化室内的液体燃料过量状态下， 所述电控装置控制 所述电磁泵关闭， 在所述气化室内的液体燃料不足状态下， 所述电控装置控制所述电磁 泵开启或控制所述电加热装置停止工作。液位传感器能够对气化室内的液体燃料多少作 出判断， 从而实现对电磁泵和电加热装置工作的自动控制， 实现了各设备的自动化控制 程度， 保证了使用的安全性。 为了进一步提高气化燃烧的可靠性和安全性， 可以单独设 立一个液位室用于容置和所述电控装置电相连的液位传感器，该液位室可以通过管路分 别与电磁泵和气化室相连。
为了防止壁炉燃烧后室内的二氧化碳含量过高，作为优选，所述的电控装置上还连 接有用于检测当前室内空气中二氧化碳浓度的二氧化碳传感器。当室内空气中二氧化碳 浓度超出设定值时， 二氧化碳传感器传送信号给电控装置， 并由该电控装置关闭气化室 的电加热装置供电电源和供液装置的电磁泵电源， 从而充分保证使用者的人身安全。
与现有技术相比， 本发明的优点在于： 壁炉采用液体燃料气化燃烧的方式， 与传统 采用固体燃料燃烧的方式相比， 壁炉的燃料燃烧方式更加清洁、 环保， 燃烧效率更高， 而且液体燃料的占用体积小， 使得壁炉整体结构设计可以更加小型化； 其次， 采用电加 热装置对气化室直接进行加热，该电加热装置使得燃料无需预加热就能够提供液体燃料 气化所需的热量， 让气化燃烧装置的整体结构更为简单， 气化过程更加简化； 另外， 由 于开始燃烧时燃烧器的温度低于液体燃料的沸点，部分气化后的液体燃料进入燃烧器后 重新凝结为液体， 本发明的燃烧器本体高于燃烧器和气化室连接的接口， 能够方便进入 燃烧器内的重新凝结为液体的液体燃料利用其自身重力流回气化室，保证燃料的充分燃 烧， 提高燃烧效率。 附图说明
图 1为本发明实施例一的壁炉结构示意图。
图 2为图 1所示壁炉的剖视图。
图 3为在本发明实施例一的液体燃烧装置结构示意图。
图 4为图 3所示的气化室和燃烧器的装配剖视图。
图 5为本发明实施例二的壁炉结构示意图。。
图 6为本发明实施例二的液体燃烧装置结构示意图。
图 7为图 6所示燃烧器的另一结构示意图。 具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
实施例一：
如图 1〜图 4所示， 本实施例为采用液体燃料气化燃烧的壁炉， 该壁炉包括有一炉 体 6， 炉体 6内部开设有炉腔 61， 炉体 6的前部还开设有和炉腔 61相连通的火焰观察 口 62， 并且， 炉体 6在炉腔 61的底部还形成一个腔室 63 , 腔室 63内放置有液体燃料 气化燃烧的燃烧装置；
燃烧装置包括有气化室 1、燃烧器 2、 电加热装置 3、液体燃料箱 4和供料管 5， 其 中， 腔室 63的顶面 632开设有槽孔 631， 燃烧器正好穿过该槽孔 631并露置在炉腔 61 内， 气化室 1的侧面开设有液体燃料添加口 11， 液体燃料箱 4的侧壁上开设有出料口 41， 供料管 5的两端分别连接出料口 41和液体燃料添加口 11 ;
本实施例的燃烧器 2采用直管结构，燃烧器 2在顶部开设有多个沿长度方向间隔设 置的火焰喷出孔 21，气化室 1的顶部开设有至少一个出气口，本实施例的气化室 1顶部 开设有两个出气口， 相应地， 燃烧器 2的两端管口 22分别向下垂直弯折， 气化室 1的 两个出气口分别与燃烧器 2的两端管口 22对应相连； 考虑到开始燃烧时， 燃烧器 2的 温度要低于液体燃料的沸点，部分气化后的液体燃料进入燃烧器 2后将重新凝结为液体， 因此， 燃烧器 2的本体要略高于燃烧器 2和气化室 1的连接口设置， 方便凝结后的液体 燃料利用其自身重力重新流回气化室 1， 保证燃烧的充分性， 提高燃烧效率；
电加热装置 3可以为采用现有各种加热方式实现的加热元件，其主要能够提供液体 燃料气化所需热量， 如可以采用金属电加热管或 PTC加热元件或加热电阻丝或电磁感 应加热线圈等等， 电加热装置 3可以紧贴气化室 1的外侧壁安装， 也可以直接安装在气 化室 1的封闭腔室内， 为了方便安装和维护， 本实施例的电加热装置 3采用的是一根金 属加热管， 在气化室 1的底部开设有沿长度方向贯穿的通孔， 金属加热管插设于该通孔 内， 参见图 4。
工作时， 液体燃料从气化室 1的液体燃料添加口 11进入气化室 1， 开启电加热装 置 3后， 气化室 1内的液体燃料经电加热装置 3加热气化膨胀， 并产生压力， 气化后的 燃料从气化室 1的出气口进入燃烧器 2，待燃烧器 2顶部的火焰喷出孔 21中有气化后的 液体燃料冒出时， 即可以进行引燃， 得到稳定的燃烧， 引燃的方式可以采用手工引燃或 者点火器引燃； 当关闭阀门， 供料管 5停止液体燃料的供应， 关闭电加热装置 3即可停 止整个燃烧装置的工作。
本实施例的壁炉采用了能使液体燃料气化燃烧的燃烧装置，该燃烧装置采用电加热 装置加热， 通过使用少量的电能即能获取大量的液体燃料的燃烧热量， 不仅省去了现有 技术中液体燃料燃烧的预加热过程， 简化了加热过程， 使用时只需要打开电加热装置即 可使液体燃料持续、 稳定地气化， 成本低廉、 加热效率高， 更加节能环保。 实施例二：
如图 5〜图 7所示，本实施例二的壁炉包括有炉体 9',炉体 9'内部开设有炉腔 9Γ, 炉体 9'的前部设置有可拆卸的炉门 92'， 炉门 92'上开设有和炉腔 9Γ相连通的火焰观察 口 92Γ, 炉体 9'在炉腔 9Γ的底部形成一个腔室 93'， 腔室 93'内放置有液体燃料气化燃 烧的燃烧装置；
本实施例二的燃烧装置同样具有气化室 1'、 燃烧器 2'、 电加热装置 3'、 液体燃料 箱 4'和供料管 5'， 液体燃料箱 4'和气化室 1'之间通过供料管 5'相连， 在供料管 5'上还 设置有提供液体燃料输送动力的电磁泵 51'，液体燃料箱 4'的顶部开设有加液口 41'，该 液体燃料箱 4'的顶部还安装有液位指示器 42'。
本实施采用的燃烧器 2'结构与实施例一相同， 燃烧器 2'的顶部同样开设有火焰喷 出孔 21'， 腔室 93'的顶面开设有槽孔 931'， 燃烧器 2'正好穿过该槽孔 931 '并露置在炉 腔 91 '内， 燃烧器除了可以采用直管结构之外， 还可以采用其他结构， 如图 7所示的弯 管结构，或者采用圆盘结构；本实施采用的电加热装置 3'及安装方式也与实施例一相同， 在此不做赘述。
本实施例的燃烧器 2'在其中一侧靠近火焰喷出孔 2Γ的位置设置有点火器 7'，燃烧 器 2'在另一侧靠近火焰喷出孔 2Γ的位置设置有火焰检测装置 8', 该火焰检测装置 8'用 于检测燃烧器 2'的火焰是否处于正常燃烧状态，气化室 Γ的外侧壁上设置有温度传感器 11', 该温度传感器 1Γ能够检测气化室 Γ内的工作温度是否处于正常状态， 气化室 Γ 在顶部还开设有液位孔，该液位孔内设置有液位传感器 12'，液位传感器 12'用于检测气 化室 Γ内液体燃料的液位高度是否处于正常状态， 为了进一步提高液位检测的准确性， 还可以单独设立一个液位室， 用于容置该液位传感器 12'， 液位室可以通过管路分别连 接电磁泵 5Γ 和气化室 Γ; 其中， 电磁泵 51 '、 点火器 7'、 火焰检测装置 8'、温度传感 器 1 、 液位传感器 12'和电加热装置 3'分别通过导线电连接到电控装置 6'上并组成一 反馈控制系统：
当电磁泵 5Γ打开、 电加热装置 3'通电后， 点火器 7'可以在电控装置 6'的控制下实 现对燃烧器 2'的自动点火， 当火焰检测装置 8'检测到火焰喷出口有火焰时，发出信号给 电控装置 6'， 电控装置 6'控制点火器 7'关闭， 燃烧器 2'实现稳定的燃烧；
当火焰检测装置 8'检测到燃烧器 2'为非正常燃烧时 (如点火器 7'无法正常点火、 燃 烧器 2'火焰非正常熄灭或者燃烧不稳定等等)， 此时， 火焰检测装置 8'发送反馈信号给 电控装置 6'， 电控装置 6'进而控制电加热装置 3'停止工作， 进行故障排除；
当温度传感器 1Γ检测到气化室 Γ内的温度过高时，温度传感器 1Γ将温度信号反 馈给电控装置 6'， 电控装置 6'可以改变电加热装置 3'的加热功率， 如停止加热或减小 加热功率， 从而保证气化室 1'内加热温度处于正常水平， 防止气化室 Γ过热； 气化室 Γ内还可设置有和电控装置 6'电连接的压力传感器（图中未示）， 该压力传 感器和温度传感器 1 Γ起到双重保护的作用， 压力传感器将检测到的气化室 Γ内部气化 燃料的压力信号传送给电控装置 6'，在气化室 Γ内的气化燃料的压力超过正常使用压力 时，电控装置 6'能够关闭设置于气化室上的电加热装置的供电电源和设置在供液装置上 的电磁泵电源；
当液位传感器 12'在检测到气化室 Γ内的液体燃料过量时， 液位传感器 12'将液位 信号反馈给电控装置 6'， 电控装置 6'发出控制信号给电磁泵 51 '使其关闭， 液体燃料箱 4'停止给气化室 Γ供应燃料，而当液位传感器 12'检测到气化室 Γ内的液体燃料不足时, 液位传感器 12'将液位信号反馈给电控装置 6'， 电控装置 6'则控制电磁泵 5Γ打开， 给 气化室 Γ提供液体燃料， 或者电控装置 6'控制电加热装置 3'停止工作， 防止气化室 Γ 过热或者引起干烧。
为了进一步提高壁炉的使用安全性， 电控装置 6'上还连接有二氧化碳传感器 61'， 该二氧化碳传感器 61 '用于检测当前室内空气中二氧化碳的浓度， 当室内空气中二氧化 碳浓度超出设定值时， 电控装置 6'可以控制壁炉内的燃烧装置停止工作， 从而充分保证 使用者的人身安全；
为了能够方便控制壁炉的燃烧温度， 还可以在电控装置 6'上连接专用于检测室温 的室温传感器 62'和专用于检测壁炉的炉腔内温度的炉温传感器 63'，通过对室温和炉温 的测量， 可以实现对壁炉燃烧温度的自动检测和调控， 以更好地节省能源， 提高使用舒 适度；
此外， 燃烧装置还包括有同样电连接在电控装置 6'上的装饰灯板 64'， 装饰灯板 64'用于对炉体 9'内部或外部进行装饰照明， 用于制造出更加美观、 丰富的视觉效果； 装饰灯板 64，的照明灯可以使用普通的节能灯、荧光灯、 LED等，尤其是三原色 (RGB)LED 灯组， 通过控制可以产生不同颜色、 亮度的灯光效果， 结合液体燃料气化燃烧的火焰， 营造出更加温馨、 浪漫的气氛。
本实施例中电控装置 6'的控制方式可以利用现有技术的各种控制设备 (如单片机、 PLC等)和控制电路实现， 该控制电路和设备不是本实施例要保护的主要内容， 在此省 略对该电控装置 6'的结构和控制电路的具体描述。
本实施例通过电控装置 6'的配合可对电加热装置 3'的加热功率进行调节， 从而改 变液体燃料的气化量， 最终实现液体燃料气化燃烧装置燃烧功率的精确、 连续地调节， 使得燃烧装置的工作更加安全、 可靠。

Claims

权 利 要 求
1、 一种液体燃料气化燃烧的壁炉， 包括开设有炉腔 (61 ; 91')的炉体 (6; 9'), 所述炉 体 (6; 9，)在该炉腔 (61; 9Γ)的底部形成一能容置燃烧装置的腔室 (63; 93'),所述炉体 (6; 9') 的前部还开设有和所述炉腔 (61; 9Γ)相连通的火焰观察口 (62;921')；
其特征在于： 所述的燃烧装置包括有供液装置、 气化室 (1; Γ)和燃烧器 (2; 2')， 并 且， 所述腔室 (63; 93')的顶部开设有供所述燃烧器 (2; 2')穿过并外露于所述炉腔 (61; 91') 内的顶面， 其中， 所述燃烧器 (2; 2')上开设有火焰喷出孔(21;21')， 所述气化室 (1; 1')开 设有液体燃料添加口 (11)和出气口， 所述气化室 (1; Γ)的液体燃料添加口 (11)和所述供液 装置相连通， 所述气化室 (1; Γ)的出气口和所述燃烧器 (2; 2')相连通， 并且， 所述燃烧器 (2; 2，)的主体高于该燃烧器 (2; 2，)和所述气化室 (1; Γ)连接口设置，所述气化室 (1; Γ)还安 装有能提供液体燃料气化所需热量的电加热装置 (3; 3')。
2、 根据权利要求 1 所述的液体燃料气化燃烧的壁炉， 其特征在于： 所述炉体 (9') 的前部还设置有可拆卸的炉门 (92，)， 所述火焰观察口开设在所述炉门 (92，)上。
3、 根据权利要求 1所述的液体燃料气化燃烧的壁炉， 其特征在于： 所述的气化室 (1; Γ)的底部开设有沿长度方向贯穿的通孔， 所述电加热装置 (3; 3')插设于该通孔内。
4、 根据权利要求 3所述的液体燃料气化燃烧的壁炉， 其特征在于： 所述的电加热 装置 (3; 3，)为金属电加.热管或 PTC加热元件或加热电阻丝或电磁感应加热线圈。
5、 根据权利要求 1所述的液体燃料气化燃烧的壁炉， 其特征在于： 所述的燃烧器 (2; 2')呈管状， 所述的火焰喷出孔 (21;21')沿该燃烧器 (2; 2')的管壁长度方向间隔开设， 所述气化室 (1; Γ)的顶部或侧面开设有出气口，所述气化室 (1; Γ)的出气口分别与所述燃 烧器 (2; 2')的管口对应相连。
6、 根据权利要求 1所述的液体燃料气化燃烧的壁炉， 其特征在于： 所述燃烧装置 还包括有一能控制所述电加热装置 (3')的加热功率并控制该电加热装置 (3')停止工作的 电控装置， 所述燃烧器 (2')在靠近所述火焰喷出孔 (21')的位置设置有点火器 (7')， 所述燃 烧器 (2')在靠近所述火焰喷出孔 (2Γ)的位置还设置有能检测所述燃烧器 (2')的火焰是否 处于正常燃烧状态的火焰检测装置 (8')， 所述点火器 (7')、 火焰检测装置 (8')和所述电加 热装置 (3 ')分别通过电控装置实现电连接。
7、根据权利要求 6所述的液体燃料气化燃烧的壁炉，其特征在于： 所述气化室 (Γ) 的外侧壁上设置有能检测该气化室 (Γ)内工作温度的温度传感器 (11')， 所述温度传感器 (1 Γ)也电连接在所述的电控装置上。
8、 根据权利要求 6所述的液体燃料气化燃烧的壁炉， 其特征在于： 所述的供液装 置包括有液体燃料箱 (4')和供料管 (5')， 所述液体燃料箱 (4')的出液口和所述气化室 (Γ) 的液体燃料添加口之间通过所述供料管 (5')相连，所述供料管 (5')上还设置有提供液体燃 料输送动力的电磁泵 (5 Γ)， 所述电磁泵 (5 Γ)电连接在所述电控装置上。
9、根据权利要求 6所述的液体燃料气化燃烧的壁炉，其特征在于： 所述气化室 (Γ) 顶部开设有液位孔， 该液位孔内设置有和所述电控装置电相连的液位传感器 (12')， 该液 位传感器 (12')将检测到的液位信号传送给所述电控装置， 在所述气化室 (Γ)内的液体燃 料过量状态下， 所述电控装置控制所述电磁泵 (5Γ)关闭； 在所述气化室 (Γ)内的液体燃 料不足状态下， 所述电控装置控制所述电磁泵 (51 ')开启或控制所述电加热装置 (3 ')停止 工作。
10、 根据权利要求 6〜9中任一权利要求所述的液体燃料气化燃烧的壁炉， 其特征 在于：所述的电控装置上还连接有用于检测当前室内空气中二氧化碳浓度的二氧化碳传 感器 (61')。
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