WO2010110147A1 - Kerosene carburetor - Google Patents
Kerosene carburetor Download PDFInfo
- Publication number
- WO2010110147A1 WO2010110147A1 PCT/JP2010/054548 JP2010054548W WO2010110147A1 WO 2010110147 A1 WO2010110147 A1 WO 2010110147A1 JP 2010054548 W JP2010054548 W JP 2010054548W WO 2010110147 A1 WO2010110147 A1 WO 2010110147A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- kerosene
- air
- flow path
- vaporization pot
- pot
- Prior art date
Links
Images
Classifications
-
- 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
Definitions
- the present invention relates to a kerosene vaporizer that vaporizes kerosene, which is used to supply a mixed gas of kerosene and air to a surface combustion burner.
- Patent Document 1 For example, as disclosed in Patent Document 1, most of the surface combustion burners are for burning gaseous fuel. In this case, a vaporizer for vaporizing the fuel is unnecessary.
- Patent Document 2 discloses a surface combustion burner using kerosene, which is a liquid fuel, as fuel. Patent Document 2 also describes a vaporizer.
- ⁇ Unlike surface combustion burners that use gaseous fuel as a fuel, surface combustion burners that use kerosene as a fuel are prone to backfire.
- the spontaneous ignition temperature of methane which is the main component of natural gas, is about 550 ° C.
- the spontaneous ignition temperature of kerosene is as low as about 260 ° C.
- suppressing the temperature of the burner is an effective means for preventing flashback.
- a coolant is supplied to the surface combustion burner, and the flow path through which the gas mixture of vaporized kerosene and combustion air passes is cooled from the outside by the coolant, and a backfire occurs. Therefore, it is desirable to control the temperature so that kerosene vapor in the mixed gas does not condense.
- Air (cooling air) can be used as the coolant.
- the air pump for supplying air to each of the combustion air and the cooling air, the flow meter for measuring the flow rate, and the measured value by the flow meter
- a control device for controlling the output of the air pump is required. This has been a cause of high cost and complexity.
- An object of the present invention is to provide a kerosene vaporizer that makes it possible to avoid the need for an air pump, a flow meter and a control device for both combustion air and cooling air, respectively.
- a kerosene vaporizer for supplying a gas mixture of vaporized kerosene and air to a surface combustion burner, A kerosene vaporization pot with a heater for vaporizing kerosene inside; A kerosene passage, which is a passage communicating with the interior of the kerosene vaporization pot, for introducing kerosene into the kerosene vaporization pot; A first air flow path, which is a flow path communicating with the interior of the kerosene vaporization pot, for introducing air into the kerosene vaporization pot; A mixed gas flow path, which is a flow path communicating with the interior of the kerosene vaporization pot, for discharging the mixed gas of vaporized kerosene and air from the kerosene vaporization pot; A second air flow path that is a flow path branched from the first air flow path; and A kerosene vaporizer is provided that includes an orifice
- the inner diameter of the orifice is 33-40% of the inner diameter of the second air flow path; and A kerosene vaporizer in which the length of the orifice is 25 to 40% of the diameter in the orifice is preferable.
- a heater is inserted into the hole, The wall surface of the hole and the heater are in contact with each other, or the wall surface of the hole and the heater are close to each other with an interval of 1 mm or less.
- a kerosene vaporizer is preferred.
- the kerosene flow path passes through the opening to the kerosene vaporization pot of the first air flow path;
- a kerosene vaporizer in which the opening of the kerosene passage to the kerosene vaporization pot is located directly above the kerosene vaporization surface of the kerosene vaporization pot is preferred.
- the present invention provides a kerosene vaporizer that can avoid the need for an air pump, a flow meter, and a control device for both combustion air and cooling air, respectively.
- the kerosene vaporizer shown in FIG. 1 is a kerosene vaporizer for supplying a gas mixture of vaporized kerosene and air to a surface combustion burner, and includes the following components.
- a kerosene vaporization pot 2 provided with a heater 6 for vaporizing kerosene inside.
- a flow path (kerose oil flow path 7) communicating with the inside of the kerosene vaporization pot for introducing kerosene into the kerosene vaporization pot.
- a flow path (first air flow path) communicating with the kerosene vaporization pot for introducing air into the kerosene vaporization pot.
- the first air flow path includes a supply air flow path 1, a branching section 10, and a combustion air flow path 11.
- the first air channel opens into the kerosene vaporization pot at the opening 9.
- a flow path (mixed gas flow path 3) communicating with the inside of the kerosene vaporization pot for discharging a mixed gas of vaporized kerosene and air from the kerosene vaporization pot.
- a flow path branched from the first air flow path (second air flow path).
- the second air flow path is composed of the branch portion 10 and the cooling air flow path 4.
- the second air flow path causes the air branched from the first air flow path to be discharged from the kerosene vaporizer without going through the kerosene vaporization pot.
- An orifice 5 provided in the second air flow path.
- the channel can be formed using appropriate piping.
- a round tube (straight tube) is combined to appropriately form a T-shaped portion to form a flow path.
- kerosene supplied as a liquid is supplied into the kerosene vaporization pot 2 through a kerosene passage 7.
- the kerosene vaporization pot 2 is provided with a heater 6. Inside the kerosene vaporization pot, the supplied kerosene is heated and vaporized by the heater. An electric heater can be used as the heater 6.
- a gap is formed inside the kerosene vaporization pot, and this gap is used as a kerosene vaporization chamber.
- Kerosene and combustion air are supplied to the kerosene vaporizing chamber, and these are mixed in the kerosene vaporizing chamber to form a mixed gas.
- the kerosene vaporization pot 2 is provided with a thermocouple 8. By controlling the heater based on the measured temperature, the kerosene vaporization pot can be controlled to a predetermined temperature.
- air is supplied from the supply air passage 1.
- the supplied air is distributed at an appropriate ratio to the combustion air and the cooling air at the branching section 10.
- the distribution at this time is distributed inside the kerosene vaporizer without using a flow rate measuring device or a flow rate control device.
- Combustion air is air for mixing with vaporized kerosene to form a mixed gas.
- Combustion air is supplied into the kerosene vaporization pot from the supply air passage 1 through the branching portion 10 and further through the combustion air passage 11.
- the combustion air flow path communicates with the kerosene vaporization pot.
- Combustion air is mixed with kerosene vaporized in the kerosene vaporization pot.
- the mixed gas formed in this way is discharged from the kerosene vaporizer through the mixed gas flow path 3.
- the mixed gas discharged from the kerosene vaporizer is supplied to a surface combustion burner (not shown) and burned.
- Cooling air is air used to prevent backfire by cooling the surface combustion burner. Air is discharged from the cooling air flow path 4 from the supply air flow path 1 through the branch portion 10. The air discharged from the cooling air flow path is supplied to the surface combustion burner and used as a coolant. The cooling air after cooling the surface combustion burner can also be supplied as secondary combustion air to the flame formed by the combustion of the mixed gas.
- the kerosene vaporizer can vaporize kerosene, and can discharge a mixed gas of vaporized kerosene and combustion air, and can also discharge cooling air.
- the air inlet to the kerosene vaporizer for combustion air and the air inlet to the kerosene vaporizer for cooling air are the same (opening of the supply air flow path 1 in FIG. 1).
- the kerosene vaporizer has a structure that distributes the combustion air amount and the cooling air amount at an appropriate ratio without using a control device inside the kerosene vaporizer. This structure is formed by providing an orifice in the cooling air flow path.
- the air supplied through the supply air flow path 1 can be distributed at a constant ratio between the combustion air and the cooling air.
- the inner diameter of the orifice is preferably 33 to 40% of the inner diameter of the portion of the cooling air flow path 4 where the orifice is provided, and at the same time, the orifice length is preferably 25 to 40% of the inner diameter of the orifice.
- the kerosene vaporization pot has a bottomed cylindrical container with a void inside.
- a member for forming a hole for inserting a heater in the container and for forming a hole for inserting a pipe for forming a kerosene flow path is provided, and the remaining gap is formed with the kerosene vaporization chamber 12. Is done.
- FIG. 1B the upper side of the drawing coincides with the vertical upper side.
- the kerosene vaporizer is used in the arrangement shown in FIG.
- the bottom surface (lower bottom surface) of the kerosene vaporization chamber functions as the kerosene vaporization surface 13.
- a thermocouple 8 is provided below the bottom of the kerosene vaporization chamber.
- the mixed gas flow path is connected to the upper bottom of the container.
- Kerosene supplied as a liquid can be dripped from the kerosene flow path 7 directly above the kerosene vaporization surface of the kerosene vaporization pot 2 and vaporized.
- the material of the kerosene vaporization pot is a material with good thermal conductivity, such as brass.
- Kerosene vaporizer has a heater for vaporizing kerosene inside and can vaporize kerosene stably.
- a hole for inserting the heater 6 is provided in the kerosene vaporization pot 2, and the heater 6 can be inserted into this hole.
- the heater supplies vaporization heat necessary for vaporizing kerosene.
- the kerosene thus vaporized is a combustion air circulation hole provided on the side surface of the kerosene vaporization pot 2, that is, an opening 9 into the kerosene vaporization pot in the first air flow path (combustion air flow path). , Accompanying the combustion air that has flowed in more, discharged from the mixed gas flow path 3 as a mixed gas, and supplied to the surface combustion burner.
- the kerosene passage 7 is passed through the hole 9 for the combustion air flow on the side of the kerosene vaporization pot, and the opening to the kerosene vaporization pot in the kerosene passage is the kerosene vaporization surface (bottom of the kerosene vaporization chamber) of the kerosene vaporization pot. It is preferable to arrange so that it is located immediately above.
- the liquid kerosene supply flow rate to the kerosene vaporization pot is the kerosene supply flow rate to the vaporization pot, that is, the kerosene flow rate at the outlet end of the kerosene flow channel is 0.06 m / sec or more, 0.12 m / By setting it to sec or less, it becomes possible to generate more stable vaporized kerosene.
- kerosene vaporizer of the present invention a gas mixture of vaporized kerosene and combustion air is supplied to a surface combustion burner using kerosene as fuel, and at the same time, air for burner cooling (and secondary combustion air). Can be supplied as well, and it is easy to suppress backfire, which is a concern in a surface combustion burner using kerosene as fuel.
- air supply means such as an air pump that has been conventionally required for combustion air and cooling air, a flow meter for measuring the flow rate, and an air pump based on the measured value by the flow meter It is possible to combine the control devices for controlling the outputs. As a result, the apparatus can be simplified and the cost can be reduced.
- This distribution can be performed by an orifice provided in the cooling air flow path, and an appropriate air flow distribution is excellently realized by setting the dimensions within the specific range described above.
- kerosene vaporization pot made of a material having good thermal conductivity, for example, brass.
- the supply of vaporization heat necessary for kerosene can be realized by making a hole in the vaporization pot and inserting a heater there. About the output of a heater, it can control using the thermocouple inserted in the lower part of the vaporization pot.
- the kerosene thus vaporized can be accompanied by the combustion air flowing in from the hole opened on the side surface of the vaporization pot and discharged from the kerosene vaporizer as a mixed gas.
- the discharged mixed gas is supplied to the surface combustion burner.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spray-Type Burners (AREA)
Abstract
Provided is a kerosene carburetor which can avoid the necessity of an air pump, a flowmeter and a controller for both the combustion air and the cooling air supplied to a surface combustion burner. A kerosene carburetor which supplies the mixture of vaporized kerosene and air to a surface combustion burner comprises a kerosene vaporization pot equipped with a heater and internally vaporizing kerosene, a kerosene channel, i.e. a channel communicating with the interior of the kerosene vaporization pot, through which kerosene is introduced to the kerosene vaporization pot, a first air channel, i.e. a channel communicating with the interior of the kerosene vaporization pot, through which air is introduced to the kerosene vaporization pot, a mixture channel, i.e. a channel communicating with the interior of the kerosene vaporization pot, through which the mixture of vaporized kerosene and air is discharged from the kerosene vaporization pot, a second air channel, i.e. a channel branched from the first air channel, and an orifice provided in the second air channel.
Description
本発明は、表面燃焼バーナに灯油と空気との混合気体を供給するために用いられる、灯油を気化させる灯油気化器に関する。
The present invention relates to a kerosene vaporizer that vaporizes kerosene, which is used to supply a mixed gas of kerosene and air to a surface combustion burner.
表面燃焼バーナは、例えば、特許文献１に開示されているように、ガス燃料を燃焼させるためのものが殆どであり、この場合においては、燃料を気化する気化器は不要である。一方、液体燃料である灯油を燃料とした表面燃焼バーナが特許文献２に開示されている。特許文献２においては、気化器に関する記載もある。
For example, as disclosed in Patent Document 1, most of the surface combustion burners are for burning gaseous fuel. In this case, a vaporizer for vaporizing the fuel is unnecessary. On the other hand, Patent Document 2 discloses a surface combustion burner using kerosene, which is a liquid fuel, as fuel. Patent Document 2 also describes a vaporizer.
灯油を燃料とする表面燃焼バーナは、燃料として気体燃料を使用する表面燃焼バーナと異なり、逆火しやすい。例えば天然ガスの主成分であるメタンの自然発火温度は５５０℃程度であるのに対して、灯油の自然発火温度が２６０℃程度と低い。灯油を燃料とした表面燃焼バーナにおいては、バーナの温度を抑えることが、逆火を防止するための有効な手段となる。
表面 Unlike surface combustion burners that use gaseous fuel as a fuel, surface combustion burners that use kerosene as a fuel are prone to backfire. For example, the spontaneous ignition temperature of methane, which is the main component of natural gas, is about 550 ° C., whereas the spontaneous ignition temperature of kerosene is as low as about 260 ° C. In a surface combustion burner using kerosene as fuel, suppressing the temperature of the burner is an effective means for preventing flashback.
灯油を燃料とする表面燃焼バーナにおいては、冷却剤を表面燃焼バーナに供給し、気化灯油と燃焼用空気の混合気体が通過する流路を冷却剤によって外側から冷却して、逆火が発生せず、かつ混合気体内の灯油蒸気が凝縮しない温度に管理することが望まれる。
In a surface combustion burner using kerosene as fuel, a coolant is supplied to the surface combustion burner, and the flow path through which the gas mixture of vaporized kerosene and combustion air passes is cooled from the outside by the coolant, and a backfire occurs. Therefore, it is desirable to control the temperature so that kerosene vapor in the mixed gas does not condense.
冷却剤として空気（冷却用空気）を用いることができる。従来の気化器を利用した場合、燃焼用空気と冷却用空気のそれぞれに対して、空気を供給するための空気ポンプと、その流量を計測する為の流量計、流量計による計測値を基に空気ポンプの出力を制御するための制御装置が必要となる。このことが、高コスト化や複雑化の原因となっていた。
空 気 Air (cooling air) can be used as the coolant. When using a conventional carburetor, the air pump for supplying air to each of the combustion air and the cooling air, the flow meter for measuring the flow rate, and the measured value by the flow meter A control device for controlling the output of the air pump is required. This has been a cause of high cost and complexity.
本発明の目的は、燃焼用空気と冷却用空気の両者についてそれぞれ空気ポンプ、流量計および制御装置が必要になることを回避することを可能とする、灯油気化器を提供することである。
An object of the present invention is to provide a kerosene vaporizer that makes it possible to avoid the need for an air pump, a flow meter and a control device for both combustion air and cooling air, respectively.
本発明により、
気化灯油と空気との混合気体を表面燃焼バーナに供給するための灯油気化器であって、
内部で灯油を気化させるための、ヒータを備えた灯油気化ポット；
灯油気化ポットに灯油を導入するための、灯油気化ポットの内部に連通する流路である灯油流路；
灯油気化ポットに空気を導入するための、灯油気化ポットの内部に連通する流路である第一の空気流路；
灯油気化ポットから気化灯油と空気との混合気体を排出するための、灯油気化ポットの内部に連通する流路である混合気体流路；
第一の空気流路から分岐した流路である第二の空気流路；および、
第二の空気流路に設けられたオリフィス
を含む灯油気化器が提供される。 According to the present invention,
A kerosene vaporizer for supplying a gas mixture of vaporized kerosene and air to a surface combustion burner,
A kerosene vaporization pot with a heater for vaporizing kerosene inside;
A kerosene passage, which is a passage communicating with the interior of the kerosene vaporization pot, for introducing kerosene into the kerosene vaporization pot;
A first air flow path, which is a flow path communicating with the interior of the kerosene vaporization pot, for introducing air into the kerosene vaporization pot;
A mixed gas flow path, which is a flow path communicating with the interior of the kerosene vaporization pot, for discharging the mixed gas of vaporized kerosene and air from the kerosene vaporization pot;
A second air flow path that is a flow path branched from the first air flow path; and
A kerosene vaporizer is provided that includes an orifice provided in the second air flow path.
気化灯油と空気との混合気体を表面燃焼バーナに供給するための灯油気化器であって、
内部で灯油を気化させるための、ヒータを備えた灯油気化ポット；
灯油気化ポットに灯油を導入するための、灯油気化ポットの内部に連通する流路である灯油流路；
灯油気化ポットに空気を導入するための、灯油気化ポットの内部に連通する流路である第一の空気流路；
灯油気化ポットから気化灯油と空気との混合気体を排出するための、灯油気化ポットの内部に連通する流路である混合気体流路；
第一の空気流路から分岐した流路である第二の空気流路；および、
第二の空気流路に設けられたオリフィス
を含む灯油気化器が提供される。 According to the present invention,
A kerosene vaporizer for supplying a gas mixture of vaporized kerosene and air to a surface combustion burner,
A kerosene vaporization pot with a heater for vaporizing kerosene inside;
A kerosene passage, which is a passage communicating with the interior of the kerosene vaporization pot, for introducing kerosene into the kerosene vaporization pot;
A first air flow path, which is a flow path communicating with the interior of the kerosene vaporization pot, for introducing air into the kerosene vaporization pot;
A mixed gas flow path, which is a flow path communicating with the interior of the kerosene vaporization pot, for discharging the mixed gas of vaporized kerosene and air from the kerosene vaporization pot;
A second air flow path that is a flow path branched from the first air flow path; and
A kerosene vaporizer is provided that includes an orifice provided in the second air flow path.
前記オリフィスの内直径が、第二の空気流路の内直径の３３～４０％であり、かつ、
前記オリフィスの長さが、オリフィス内直径の２５～４０％である
灯油気化器が好ましい。 The inner diameter of the orifice is 33-40% of the inner diameter of the second air flow path; and
A kerosene vaporizer in which the length of the orifice is 25 to 40% of the diameter in the orifice is preferable.
前記オリフィスの長さが、オリフィス内直径の２５～４０％である
灯油気化器が好ましい。 The inner diameter of the orifice is 33-40% of the inner diameter of the second air flow path; and
A kerosene vaporizer in which the length of the orifice is 25 to 40% of the diameter in the orifice is preferable.
前記ヒータを灯油気化ポットに挿入するための穴を有し、
該穴にヒータが挿入され、
該穴の壁面とヒータが接触するか、該穴の壁面とヒータとが１ｍｍ以下の間隔をもって近接する、
灯油気化器が好ましい。 Having a hole for inserting the heater into a kerosene vaporization pot;
A heater is inserted into the hole,
The wall surface of the hole and the heater are in contact with each other, or the wall surface of the hole and the heater are close to each other with an interval of 1 mm or less.
A kerosene vaporizer is preferred.
該穴にヒータが挿入され、
該穴の壁面とヒータが接触するか、該穴の壁面とヒータとが１ｍｍ以下の間隔をもって近接する、
灯油気化器が好ましい。 Having a hole for inserting the heater into a kerosene vaporization pot;
A heater is inserted into the hole,
The wall surface of the hole and the heater are in contact with each other, or the wall surface of the hole and the heater are close to each other with an interval of 1 mm or less.
A kerosene vaporizer is preferred.
前記灯油流路が、第一の空気流路の灯油気化ポットへの開口を通り、
灯油流路の灯油気化ポット内部への開口が、灯油気化ポットの灯油気化面の直上に位置する
灯油気化器が好ましい。 The kerosene flow path passes through the opening to the kerosene vaporization pot of the first air flow path;
A kerosene vaporizer in which the opening of the kerosene passage to the kerosene vaporization pot is located directly above the kerosene vaporization surface of the kerosene vaporization pot is preferred.
灯油流路の灯油気化ポット内部への開口が、灯油気化ポットの灯油気化面の直上に位置する
灯油気化器が好ましい。 The kerosene flow path passes through the opening to the kerosene vaporization pot of the first air flow path;
A kerosene vaporizer in which the opening of the kerosene passage to the kerosene vaporization pot is located directly above the kerosene vaporization surface of the kerosene vaporization pot is preferred.
本発明により、燃焼用空気と冷却用空気の両者についてそれぞれ空気ポンプ、流量計および制御装置が必要になることを回避することを可能とする、灯油気化器が提供される。
The present invention provides a kerosene vaporizer that can avoid the need for an air pump, a flow meter, and a control device for both combustion air and cooling air, respectively.
以下に本発明の灯油気化器の一実施形態について図面を用いて説明するが、本発明はこれによって限定されるものではない。
Hereinafter, an embodiment of a kerosene vaporizer according to the present invention will be described with reference to the drawings, but the present invention is not limited thereto.
図１に示した灯油気化器は、気化灯油と空気との混合気体を表面燃焼バーナに供給するための灯油気化器であって、次の構成要素を含む。
・内部で灯油を気化させるための、ヒータ６を備えた灯油気化ポット２。
・灯油気化ポットに灯油を導入するための、灯油気化ポットの内部に連通する流路（灯油流路７）。
・灯油気化ポットに空気を導入するための、灯油気化ポットの内部に連通する流路（第一の空気流路）。第一の空気流路は、供給空気流路１、分岐部１０および燃焼用空気流路１１から構成される。第一の空気流路は、開口９において灯油気化ポット内部に開口する。
・灯油気化ポットから気化灯油と空気との混合気体を排出するための、灯油気化ポットの内部に連通する流路（混合気体流路３）。
・第一の空気流路から分岐した流路（第二の空気流路）。第二の空気流路は、分岐部１０および冷却用空気流路４から構成される。第二の空気流路は、第一の空気流路から分岐した空気を、灯油気化ポットを経ずに灯油気化器から排出させる。
・第二の空気流路に設けられたオリフィス５。 The kerosene vaporizer shown in FIG. 1 is a kerosene vaporizer for supplying a gas mixture of vaporized kerosene and air to a surface combustion burner, and includes the following components.
Akerosene vaporization pot 2 provided with a heater 6 for vaporizing kerosene inside.
A flow path (kerose oil flow path 7) communicating with the inside of the kerosene vaporization pot for introducing kerosene into the kerosene vaporization pot.
A flow path (first air flow path) communicating with the kerosene vaporization pot for introducing air into the kerosene vaporization pot. The first air flow path includes a supplyair flow path 1, a branching section 10, and a combustion air flow path 11. The first air channel opens into the kerosene vaporization pot at the opening 9.
A flow path (mixed gas flow path 3) communicating with the inside of the kerosene vaporization pot for discharging a mixed gas of vaporized kerosene and air from the kerosene vaporization pot.
A flow path branched from the first air flow path (second air flow path). The second air flow path is composed of thebranch portion 10 and the cooling air flow path 4. The second air flow path causes the air branched from the first air flow path to be discharged from the kerosene vaporizer without going through the kerosene vaporization pot.
Anorifice 5 provided in the second air flow path.
・内部で灯油を気化させるための、ヒータ６を備えた灯油気化ポット２。
・灯油気化ポットに灯油を導入するための、灯油気化ポットの内部に連通する流路（灯油流路７）。
・灯油気化ポットに空気を導入するための、灯油気化ポットの内部に連通する流路（第一の空気流路）。第一の空気流路は、供給空気流路１、分岐部１０および燃焼用空気流路１１から構成される。第一の空気流路は、開口９において灯油気化ポット内部に開口する。
・灯油気化ポットから気化灯油と空気との混合気体を排出するための、灯油気化ポットの内部に連通する流路（混合気体流路３）。
・第一の空気流路から分岐した流路（第二の空気流路）。第二の空気流路は、分岐部１０および冷却用空気流路４から構成される。第二の空気流路は、第一の空気流路から分岐した空気を、灯油気化ポットを経ずに灯油気化器から排出させる。
・第二の空気流路に設けられたオリフィス５。 The kerosene vaporizer shown in FIG. 1 is a kerosene vaporizer for supplying a gas mixture of vaporized kerosene and air to a surface combustion burner, and includes the following components.
A
A flow path (kerose oil flow path 7) communicating with the inside of the kerosene vaporization pot for introducing kerosene into the kerosene vaporization pot.
A flow path (first air flow path) communicating with the kerosene vaporization pot for introducing air into the kerosene vaporization pot. The first air flow path includes a supply
A flow path (mixed gas flow path 3) communicating with the inside of the kerosene vaporization pot for discharging a mixed gas of vaporized kerosene and air from the kerosene vaporization pot.
A flow path branched from the first air flow path (second air flow path). The second air flow path is composed of the
An
上記流路は、適宜の配管を用いて形成することができる。図示した灯油気化器では、丸管（直管）を組合せて、適宜Ｔ字部を形成して、流路を形成している。
The channel can be formed using appropriate piping. In the illustrated kerosene vaporizer, a round tube (straight tube) is combined to appropriately form a T-shaped portion to form a flow path.
図１に示すように、液体として供給された灯油は灯油流路７により灯油気化ポット２の内部へ供給される。灯油気化ポット２には、ヒータ６が備えられている。灯油気化ポットの内部で、供給された灯油がヒータによって加熱され気化する。なお、ヒータ６としては電気ヒータを用いることができる。
As shown in FIG. 1, kerosene supplied as a liquid is supplied into the kerosene vaporization pot 2 through a kerosene passage 7. The kerosene vaporization pot 2 is provided with a heater 6. Inside the kerosene vaporization pot, the supplied kerosene is heated and vaporized by the heater. An electric heater can be used as the heater 6.
灯油気化ポットの内部には空隙が形成されており、この空隙は灯油気化室として用いられる。灯油気化室には灯油および燃焼用空気が供給され、灯油気化室にてこれらが混合して混合気体が形成される。
A gap is formed inside the kerosene vaporization pot, and this gap is used as a kerosene vaporization chamber. Kerosene and combustion air are supplied to the kerosene vaporizing chamber, and these are mixed in the kerosene vaporizing chamber to form a mixed gas.
また、灯油気化ポット２には、熱電対８が備えられる。これにより測定した温度に基づいてヒータを制御することにより、灯油気化ポットを所定の温度に制御することができる。
Further, the kerosene vaporization pot 2 is provided with a thermocouple 8. By controlling the heater based on the measured temperature, the kerosene vaporization pot can be controlled to a predetermined temperature.
灯油が気化されると同時に、空気が供給空気流路１より供給される。供給された空気は、分岐部１０において、燃焼用空気と冷却用空気とに、適当な比率にて分配される。この際の分配は、流量計測装置や、流量制御装置を用いることなく、灯油気化器内部で分配される。
At the same time as kerosene is vaporized, air is supplied from the supply air passage 1. The supplied air is distributed at an appropriate ratio to the combustion air and the cooling air at the branching section 10. The distribution at this time is distributed inside the kerosene vaporizer without using a flow rate measuring device or a flow rate control device.
燃焼用空気は、気化灯油と混合させて混合気体を形成させるための空気である。供給空気流路１から分岐部１０を経、さらに燃焼用空気流路１１を経て、燃焼用空気が灯油気化ポット内部に供給される。燃焼用空気流路は灯油気化ポット内部に連通している。
Combustion air is air for mixing with vaporized kerosene to form a mixed gas. Combustion air is supplied into the kerosene vaporization pot from the supply air passage 1 through the branching portion 10 and further through the combustion air passage 11. The combustion air flow path communicates with the kerosene vaporization pot.
燃焼用空気は、灯油気化ポット内部で気化した灯油と混合する。このようにして形成された混合気体は、混合気体流路３を経て、灯油気化器から排出される。灯油気化器から排出された混合気体は、表面燃焼バーナ（不図示）へ供給され、燃焼される。
Combustion air is mixed with kerosene vaporized in the kerosene vaporization pot. The mixed gas formed in this way is discharged from the kerosene vaporizer through the mixed gas flow path 3. The mixed gas discharged from the kerosene vaporizer is supplied to a surface combustion burner (not shown) and burned.
冷却用空気は、表面燃焼バーナを冷却することで逆火を防止するために用いられる空気である。供給空気流路１から分岐部１０を経て、冷却用空気流路４から空気が排出される。冷却用空気流路から排出された空気は、表面燃焼バーナへ供給され、冷却剤として利用される。表面燃焼バーナを冷却した後の冷却用空気を、混合気体の燃焼によって形成された火炎に、二次燃焼空気として供給することもできる。
Cooling air is air used to prevent backfire by cooling the surface combustion burner. Air is discharged from the cooling air flow path 4 from the supply air flow path 1 through the branch portion 10. The air discharged from the cooling air flow path is supplied to the surface combustion burner and used as a coolant. The cooling air after cooling the surface combustion burner can also be supplied as secondary combustion air to the flame formed by the combustion of the mixed gas.
灯油気化器は、灯油を気化させることができ、気化灯油と燃焼用空気との混合気体を排出することができると同時に、冷却用空気も排出することができる。
The kerosene vaporizer can vaporize kerosene, and can discharge a mixed gas of vaporized kerosene and combustion air, and can also discharge cooling air.
燃焼用空気の灯油気化器への空気流入口と冷却用空気の灯油気化器への空気流入口は同一（図１における供給空気流路１の開口）である。そして、灯油気化器は、灯油気化器内部で制御装置を用いることなく、燃焼用空気量と冷却用空気量を適当な比率で分配する構造を有する。この構造は、冷却用空気流路にオリフィスを設けることで形成される。
The air inlet to the kerosene vaporizer for combustion air and the air inlet to the kerosene vaporizer for cooling air are the same (opening of the supply air flow path 1 in FIG. 1). The kerosene vaporizer has a structure that distributes the combustion air amount and the cooling air amount at an appropriate ratio without using a control device inside the kerosene vaporizer. This structure is formed by providing an orifice in the cooling air flow path.
冷却用空気流路４にオリフィス５を設けることにより、供給空気流路１を経て供給された空気を、燃焼用空気と冷却用空気に一定の比率で分配することができる。オリフィスの内直径を、冷却用空気流路４のオリフィスが設けられる部分の内直径に対して、３３～４０％とし、同時にオリフィス長をオリフィス内直径の２５～４０％とすることが好ましい。オリフィスの寸法をこのようにすることで、適当な空気の流量分配が容易に実現される。
By providing the orifice 5 in the cooling air flow path 4, the air supplied through the supply air flow path 1 can be distributed at a constant ratio between the combustion air and the cooling air. The inner diameter of the orifice is preferably 33 to 40% of the inner diameter of the portion of the cooling air flow path 4 where the orifice is provided, and at the same time, the orifice length is preferably 25 to 40% of the inner diameter of the orifice. By setting the orifice size in this way, an appropriate air flow distribution can be easily realized.
図示した灯油気化器では、灯油気化ポットは、内部に空隙を有する、有底円筒状の容器を有する。この容器内にヒータを挿入するための穴を形成するための、かつ灯油流路を形成する配管を挿入するための穴を形成するための部材が設けられ、残りの空隙が灯油気化室１２とされる。図１（ｂ）においては紙面上方が鉛直上方と一致する。灯油気化器は図１（ｂ）に示した配置で使用される。灯油気化室の底面（下底面）は灯油気化面１３として機能する。灯油気化室の底面の下に熱電対８が設けられている。混合気体流路は容器の上底に接続される。
In the illustrated kerosene vaporizer, the kerosene vaporization pot has a bottomed cylindrical container with a void inside. A member for forming a hole for inserting a heater in the container and for forming a hole for inserting a pipe for forming a kerosene flow path is provided, and the remaining gap is formed with the kerosene vaporization chamber 12. Is done. In FIG. 1B, the upper side of the drawing coincides with the vertical upper side. The kerosene vaporizer is used in the arrangement shown in FIG. The bottom surface (lower bottom surface) of the kerosene vaporization chamber functions as the kerosene vaporization surface 13. A thermocouple 8 is provided below the bottom of the kerosene vaporization chamber. The mixed gas flow path is connected to the upper bottom of the container.
液体にて供給された灯油を、灯油気化ポット２の灯油気化面の直上に灯油流路７から滴下し、気化することができる。
Kerosene supplied as a liquid can be dripped from the kerosene flow path 7 directly above the kerosene vaporization surface of the kerosene vaporization pot 2 and vaporized.
灯油気化ポットの材料は熱伝導性の良好な材料、例えば黄銅とされる。
The material of the kerosene vaporization pot is a material with good thermal conductivity, such as brass.
灯油気化器は、内部に灯油気化用のヒータを持ち、灯油を安定的に気化させることができる。
Kerosene vaporizer has a heater for vaporizing kerosene inside and can vaporize kerosene stably.
灯油気化ポット２にヒータ６を挿入するための穴を設け、この穴にヒータ６を挿入することができる。このヒータにより、灯油の気化に必要な気化熱が供給される。このとき、灯油気化ポット２を安定的に加熱するため、ヒータ６を上記穴の壁面に接触させるか、或いはヒータを、上記穴の壁面との間隔が１ｍｍ以下となるように近接させることが好ましい。なお、ヒータを挿入するための穴は、灯油気化室まで貫通しない。
A hole for inserting the heater 6 is provided in the kerosene vaporization pot 2, and the heater 6 can be inserted into this hole. The heater supplies vaporization heat necessary for vaporizing kerosene. At this time, in order to heat the kerosene vaporization pot 2 stably, it is preferable to bring the heater 6 into contact with the wall surface of the hole or to bring the heater close to each other so that the distance from the wall surface of the hole is 1 mm or less. . Note that the hole for inserting the heater does not penetrate to the kerosene vaporization chamber.
このようにして気化された灯油は、灯油気化ポット２の側面に設けた燃焼用空気流通用の穴、すなわち第一の空気流路（燃焼用空気流路）の灯油気化ポット内部への開口９、より流入した燃焼用空気に同伴され、混合気体として混合気体流路３から排出され、表面燃焼バーナに供給される。
The kerosene thus vaporized is a combustion air circulation hole provided on the side surface of the kerosene vaporization pot 2, that is, an opening 9 into the kerosene vaporization pot in the first air flow path (combustion air flow path). , Accompanying the combustion air that has flowed in more, discharged from the mixed gas flow path 3 as a mixed gas, and supplied to the surface combustion burner.
灯油流路７を、灯油気化ポット側面の燃焼用空気流通用の穴９を通過させ、灯油流路の灯油気化ポット内部への開口が灯油気化ポットの灯油気化面（灯油気化室の底面）の直上に位置するよう配置することが好ましい。
The kerosene passage 7 is passed through the hole 9 for the combustion air flow on the side of the kerosene vaporization pot, and the opening to the kerosene vaporization pot in the kerosene passage is the kerosene vaporization surface (bottom of the kerosene vaporization chamber) of the kerosene vaporization pot. It is preferable to arrange so that it is located immediately above.
灯油気化ポットへの液体灯油供給流速については、灯油流路の配管径において、気化ポットへの灯油供給流速、すなわち灯油流路の出口端における灯油流速を０．０６ｍ／ｓｅｃ以上、０．１２ｍ／ｓｅｃ以下とすることで、より安定的な気化灯油の発生が可能となる。
The liquid kerosene supply flow rate to the kerosene vaporization pot is the kerosene supply flow rate to the vaporization pot, that is, the kerosene flow rate at the outlet end of the kerosene flow channel is 0.06 m / sec or more, 0.12 m / By setting it to sec or less, it becomes possible to generate more stable vaporized kerosene.
本発明の灯油気化器を用いることにより、灯油を燃料とする表面燃焼バーナに対して、気化灯油と燃焼用空気との混合気体を供給すると同時に、バーナ冷却用の空気（さらには二次燃焼空気として用いられることもできる）も供給することが可能となり、灯油を燃料とする表面燃焼バーナにおいて懸念される逆火の抑制が容易となる。
By using the kerosene vaporizer of the present invention, a gas mixture of vaporized kerosene and combustion air is supplied to a surface combustion burner using kerosene as fuel, and at the same time, air for burner cooling (and secondary combustion air). Can be supplied as well, and it is easy to suppress backfire, which is a concern in a surface combustion burner using kerosene as fuel.
灯油蒸気との混合気体を形成する燃焼用空気と、バーナを冷却してバーナ缶体を適性温度に保つ冷却用空気への流量分配が、自動的に、流量計等を用いることなく実現される。すなわち、従来は燃焼用空気用と冷却用空気用にそれぞれ必要であった空気ポンプのような空気供給手段と、その流量を計測する為の流量計、および流量計による計測値を基に空気ポンプの出力を制御するための制御装置を、一つに纏めることが可能となる。その結果、装置の簡素化や低コスト化が可能となる。
Flow distribution to combustion air that forms a gas mixture with kerosene vapor and cooling air that cools the burner and keeps the burner can body at an appropriate temperature is automatically realized without using a flow meter or the like. . In other words, air supply means such as an air pump that has been conventionally required for combustion air and cooling air, a flow meter for measuring the flow rate, and an air pump based on the measured value by the flow meter It is possible to combine the control devices for controlling the outputs. As a result, the apparatus can be simplified and the cost can be reduced.
この分配については、冷却空気流路に設けられたオリフィスによって行なうことができ、その寸法を前述の特定の範囲とすることで、適当な空気の流量分配が優れて実現される。
This distribution can be performed by an orifice provided in the cooling air flow path, and an appropriate air flow distribution is excellently realized by setting the dimensions within the specific range described above.
また、液体にて供給された灯油の気化については、熱伝導性の良好な材料、例えば黄銅製の、灯油気化ポットの灯油気化室底面直上に滴下して、灯油を気化することができる。灯油に必要な気化熱の供給については、気化ポットに穴を開け、ここにヒータを挿入することで実現することができる。ヒータの出力については、気化ポットの下部に挿入された熱電対を利用して制御することができる。
Also, regarding the vaporization of kerosene supplied as a liquid, it is possible to vaporize kerosene by dripping it directly on the bottom of the kerosene vaporization chamber of a kerosene vaporization pot made of a material having good thermal conductivity, for example, brass. The supply of vaporization heat necessary for kerosene can be realized by making a hole in the vaporization pot and inserting a heater there. About the output of a heater, it can control using the thermocouple inserted in the lower part of the vaporization pot.
このようにして気化された灯油は、気化ポット側面に開いた穴より流入した燃焼用空気に同伴され、混合気体として灯油気化器から排出されることができる。排出された混合気体は表面燃焼バーナに供給されることとなる。
The kerosene thus vaporized can be accompanied by the combustion air flowing in from the hole opened on the side surface of the vaporization pot and discharged from the kerosene vaporizer as a mixed gas. The discharged mixed gas is supplied to the surface combustion burner.
また、灯油気化ポットへの液体灯油供給流速を、前述の特定の範囲とすることで、安定的な気化灯油の発生が容易となる。
Also, stable generation of vaporized kerosene is facilitated by setting the liquid kerosene supply flow rate to the kerosene vaporization pot within the specific range described above.
１ 供給空気流路
２ 灯油気化ポット
３ 混合気体流路
４ 冷却用空気流路
５ オリフィス
６ ヒータ
７ 灯油流路
８ 熱電対
９ 燃焼用空気流路の灯油気化ポット内部への開口
１０ 分岐部
１１ 燃焼用空気流路
１２ 灯油気化室
１３ 灯油気化面 DESCRIPTION OFSYMBOLS 1 Supply air flow path 2 Kerosene vaporization pot 3 Mixed gas flow path 4 Cooling air flow path 5 Orifice 6 Heater 7 Kerosene flow path 8 Thermocouple 9 Opening of combustion air flow path to kerosene vaporization pot 10 Branching portion 11 Combustion Air channel 12 Kerosene vaporization chamber 13 Kerosene vaporization surface
２ 灯油気化ポット
３ 混合気体流路
４ 冷却用空気流路
５ オリフィス
６ ヒータ
７ 灯油流路
８ 熱電対
９ 燃焼用空気流路の灯油気化ポット内部への開口
１０ 分岐部
１１ 燃焼用空気流路
１２ 灯油気化室
１３ 灯油気化面 DESCRIPTION OF
Claims (4)
- 気化灯油と空気との混合気体を表面燃焼バーナに供給するための灯油気化器であって、
内部で灯油を気化させるための、ヒータを備えた灯油気化ポット；
灯油気化ポットに灯油を導入するための、灯油気化ポットの内部に連通する流路である灯油流路；
灯油気化ポットに空気を導入するための、灯油気化ポットの内部に連通する流路である第一の空気流路；
灯油気化ポットから気化灯油と空気との混合気体を排出するための、灯油気化ポットの内部に連通する流路である混合気体流路；
第一の空気流路から分岐した流路である第二の空気流路；および、
第二の空気流路に設けられたオリフィス
を含む灯油気化器。 A kerosene vaporizer for supplying a gas mixture of vaporized kerosene and air to a surface combustion burner,
A kerosene vaporization pot with a heater for vaporizing kerosene inside;
A kerosene passage, which is a passage communicating with the interior of the kerosene vaporization pot, for introducing kerosene into the kerosene vaporization pot;
A first air flow path, which is a flow path communicating with the interior of the kerosene vaporization pot, for introducing air into the kerosene vaporization pot;
A mixed gas flow path, which is a flow path communicating with the interior of the kerosene vaporization pot, for discharging the mixed gas of vaporized kerosene and air from the kerosene vaporization pot;
A second air flow path that is a flow path branched from the first air flow path; and
A kerosene vaporizer including an orifice provided in the second air flow path. - 前記オリフィスの内直径が、第二の空気流路の内直径の３３～４０％であり、かつ、
前記オリフィスの長さが、オリフィス内直径の２５～４０％である
請求項１記載の灯油気化器。 The inner diameter of the orifice is 33-40% of the inner diameter of the second air flow path; and
The kerosene vaporizer according to claim 1, wherein a length of the orifice is 25 to 40% of an inner diameter of the orifice. - 前記ヒータを灯油気化ポットに挿入するための穴を有し、
該穴にヒータが挿入され、
該穴の壁面とヒータが接触するか、該穴の壁面とヒータとが１ｍｍ以下の間隔をもって近接する、
請求項１または２記載の灯油気化器。 Having a hole for inserting the heater into a kerosene vaporization pot;
A heater is inserted into the hole,
The wall surface of the hole and the heater are in contact with each other, or the wall surface of the hole and the heater are close to each other with an interval of 1 mm or less.
The kerosene vaporizer according to claim 1 or 2. - 前記灯油流路が、第一の空気流路の灯油気化ポットへの開口を通り、
灯油流路の灯油気化ポット内部への開口が、灯油気化ポットの灯油気化面の直上に位置する
請求項１～３の何れか一項記載の灯油気化器。 The kerosene flow path passes through the opening to the kerosene vaporization pot of the first air flow path;
The kerosene vaporizer according to any one of claims 1 to 3, wherein an opening of the kerosene passage into the kerosene vaporization pot is located immediately above the kerosene vaporization surface of the kerosene vaporization pot.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009079048A JP2010230248A (en) | 2009-03-27 | 2009-03-27 | Kerosene carburetor |
| JP2009-079048 | 2009-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010110147A1 true WO2010110147A1 (en) | 2010-09-30 |
Family
ID=42780840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2010/054548 WO2010110147A1 (en) | 2009-03-27 | 2010-03-17 | Kerosene carburetor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2010230248A (en) |
| WO (1) | WO2010110147A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06137518A (en) * | 1992-10-27 | 1994-05-17 | Noritz Corp | Liquid fuel burner |
| JP2002098310A (en) * | 2000-09-26 | 2002-04-05 | Nippon Mitsubishi Oil Corp | Liquid fuel burner mat |
| JP2003083535A (en) * | 2001-09-07 | 2003-03-19 | Mitsubishi Electric Corp | Combustion equipment |
| JP2006105480A (en) * | 2004-10-05 | 2006-04-20 | Nippon Oil Corp | Burner and fuel cell system |
| JP2007046815A (en) * | 2005-08-08 | 2007-02-22 | North Techno Research Kk | Premixing combustion apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6170312A (en) * | 1984-09-12 | 1986-04-11 | Matsushita Electric Ind Co Ltd | Liquid fuel vaporizing device |
| JPH0517317U (en) * | 1991-07-30 | 1993-03-05 | 京セラ株式会社 | Liquid vaporizer |
| JPH08135927A (en) * | 1994-11-07 | 1996-05-31 | Sanyo Electric Co Ltd | Liquid fuel combustion device |
-
2009
- 2009-03-27 JP JP2009079048A patent/JP2010230248A/en active Pending
-
2010
- 2010-03-17 WO PCT/JP2010/054548 patent/WO2010110147A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06137518A (en) * | 1992-10-27 | 1994-05-17 | Noritz Corp | Liquid fuel burner |
| JP2002098310A (en) * | 2000-09-26 | 2002-04-05 | Nippon Mitsubishi Oil Corp | Liquid fuel burner mat |
| JP2003083535A (en) * | 2001-09-07 | 2003-03-19 | Mitsubishi Electric Corp | Combustion equipment |
| JP2006105480A (en) * | 2004-10-05 | 2006-04-20 | Nippon Oil Corp | Burner and fuel cell system |
| JP2007046815A (en) * | 2005-08-08 | 2007-02-22 | North Techno Research Kk | Premixing combustion apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010230248A (en) | 2010-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8221115B2 (en) | Fuel combustion | |
| US10258085B2 (en) | System and method for vaporizing fluids by combustion | |
| US8573966B2 (en) | Combustion apparatus | |
| JP2010518353A (en) | Device for evaporating liquid | |
| US3477644A (en) | Liquid fuel burner | |
| CN107923622B (en) | Heating device using liquefied gas | |
| WO2010110147A1 (en) | Kerosene carburetor | |
| JP4366285B2 (en) | Burner and fuel cell system | |
| KR101714655B1 (en) | Heating equipment using liqudfide gas | |
| JP3227404B2 (en) | Vaporized gas supply device | |
| CN111412463A (en) | Superconductive temperature-control vaporization burner | |
| JP4617079B2 (en) | Reformer burner and fuel cell system | |
| JP2011169528A (en) | Combustion device | |
| JP4187710B2 (en) | Burner and fuel cell system | |
| US2315482A (en) | Hydrocarbon fuel burner | |
| US1560367A (en) | Production of radiant heat | |
| US659668A (en) | Hydrocarbon-burner. | |
| USRE8686E (en) | Improvement in vapor-burners | |
| JP4829047B2 (en) | Combustion device | |
| JP2005180812A (en) | Burner and reformer | |
| US2115850A (en) | Oil burner | |
| US1232878A (en) | Liquid-fuel burner. | |
| JP5525756B2 (en) | Combustion device | |
| RU2342595C1 (en) | Burner device | |
| JP2006105482A (en) | Burner and fuel cell system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10755945 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 19/01/2012) |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 10755945 Country of ref document: EP Kind code of ref document: A1 |