KR101125580B1 - Hydrogen burning type warm-air heater, hydrogen burning type warm-air generating method and burner used for the method - Google Patents

Abstract

Hydrogen combustion type hot air heater, hydrogen burner type hot air generating method and burner used to heat external air by burning hydrogen gas and discharge clean gas which does not contain greenhouse gas (especially CO ₂ ) in the exhaust gas To provide. An electrolysis unit (B) for decomposing water into hydrogen gas and oxygen gas by electrolysis, a furnace body (C) heated by burning internally the hydrogen gas generated in the electrolysis unit (B), and the furnace body A hydrogen-fired hot air heater having a heating chamber (D) provided to surround the periphery of (C) and receiving external air (P) and discharging the same after heating in the furnace body. Moreover, the preheating chamber which covers the heating chamber D is provided.

Electrolysis, water, hydrogen gas, oxygen gas, furnace, heating chamber, hydrogen combustion hot air heater.

Description

HYDROGEN BURNING TYPE WARM-AIR HEATER, HYDROGEN BURNING TYPE WARM-AIR GENERATING METHOD AND BURNER USED FOR THE METHOD}

The present invention relates to a hydrogen combustion type hot air heater, a hydrogen combustion type hot air generating method, and a burner used in the method, and more particularly, to discharge a clean gas containing no greenhouse gas (especially CO ₂ ) in the exhaust gas. The present invention relates to a hydrogen combustion type hot air heater, a hydrogen combustion type hot air generating method, and a burner used in the method.

Conventionally, in agricultural cultivation such as greenhouse vegetables and greenhouse melons, in order to keep the indoor temperature in a greenhouse (including a house) at a relatively high temperature, previously, liquid fuel such as heavy oil or kerosene is burned to warm the air in the greenhouse. So-called oil-fired hot air heaters have been used.

However, oil-fired hot air heaters have problems such as generation of CO (carbon monoxide) due to incomplete combustion of liquid fuels, and development of gas-fired hot air heaters for burning gas fuel such as propane gas has been progressed (for example, Patent Documents 1 to 5).

In general, these gas-fired hot air heaters have a structure in which a furnace body is provided inside a heating chamber.

Then, the gas fuel is combusted inside the furnace to heat the furnace itself, to receive external air in the heating chamber, to heat the outside air received into the furnace in the heated state, and to discharge it into the greenhouse as warm air. At that time, the exhaust gas generated by the combustion of the gas fuel is usually exhausted out of the greenhouse by providing direct communication or the like to the furnace body so as not to be mixed with warm air.

In some of these gas-fired hot air heaters, some of the exhaust gas is actively mixed with outside air to be exhausted into the greenhouse in order to supply CO ₂ (carbon dioxide) necessary for the growth of plants such as greenhouse vegetables. See Document 1 and Patent Document 2).

Further, in the interior of the hot air heater, and combustion heat of a system external air it is also proposed a separate, forming a gas combustion system for generating CO ₂ (see Patent Document 3).

Patent Document 1: Japanese Patent Application No. 57-37292

Patent Document 2: Japanese Patent Application No. 51-31725

Patent Document 3: JP 62-35319

Patent Document 4: Japanese Patent Application Laid-Open No. 2003-74984

Patent Document 5: Japanese Patent Application Laid-Open No. 2002-228264

However, even in such a gas-fired hot air heater, the CO ₂ generated by the combustion of the gas fuel is eventually discharged into the outside air in large quantities as exhaust gas.

Today, reduction of greenhouse gas emissions (global warming gases) is required on a global scale, and in particular, reduction of CO ₂ emissions is an urgent task.

Background of the Invention The present invention has been made to overcome the above problems in the background.

That is, the present invention is a hydrogen combustion type hot air heater, a hydrogen combustion type hot air generation method for heating external air by burning hydrogen gas and discharging clean gas containing no greenhouse gas (especially CO ₂ ) in the exhaust gas It is an object to provide a burner for use in the method.

However, since hydrogen gas has a high combustion temperature and furthermore, it does not generate CO ₂ since it is only vapor (or water) when combusted, it is easy to ignite and explode even in a small amount, and is easier to leak compared to propane gas. There is a flaw.

In addition, in order to use hydrogen gas as a fuel of a warm air heater, it is necessary to generate hydrogen gas with high efficiency.

The present invention also aims to overcome such a problem.

Moreover, an object of this invention is to provide the burner which burns using hydrogen obtained by the electrolysis of water with oxygen obtained by the same electrolysis.

The hydrogen-fired hot air heater according to claim 1 includes an electrolysis unit for decomposing water into hydrogen gas and oxygen gas by electrolysis, a furnace body heated by burning internally hydrogen gas generated in the electrolysis unit, and It is installed so as to surround the furnace body, characterized in that it is provided with a heating chamber for taking out the outside air and heating in the furnace body and then discharged.

The hydrogen-fired hot air heater of Claim 2 is the hydrogen-fired hot air heater of Claim 1 WHEREIN: The said furnace body is formed in a substantially cylindrical shape, the burner for hydrogen gas combustion provided with the fan for sucking air, and this burner. And a helical guide plate for guiding the air heated by combustion of hydrogen gas to move helically in the furnace body, and an exhaust pipe for taking out the heated air. .

The hydrogen-fired hot air heater according to claim 3 is the hydrogen-fired hot air heater according to claim 1 or 2, wherein the preheating chamber covering the heating chamber and the reaction gas discharged from the furnace are introduced directly into the preheating chamber. It is characterized in that the dedicated passage for the installation.

The hydrogen-fired hot air heater of claim 4 is the hydrogen-fired hot air heater of claim 3, wherein the preheating chamber is provided with a return flow path for returning the reaction gas of the preheating chamber to the heating chamber.

The hydrogen combustion type hot air generation method according to claim 5 includes an electrolysis step in which water is electrolyzed into hydrogen gas and oxygen gas, and the hydrogen gas generated in the electrolysis step is mixed with the oxygen gas and burned. The outside air is taken in a combustion process for raising the temperature and a heating chamber provided to surround the furnace body, and the outside air is brought into contact with the outer wall surface of the furnace body heated by the combustion of the hydrogen gas to raise the outside air. And a warm air discharge step of discharging the outside air heated up in the outside air heating step out of the heating chamber.

The hydrogen combustion type hot air generation method of Claim 6 has the separation recovery process which isolate | separates and collect | recovers the said hydrogen gas and the said oxygen gas produced by the said electrolysis process in the hydrogen combustion type warm air generation method of Claim 5. It features.

The hydrogen combustion type hot air generation method of Claim 7 has a drying process of drying the said hydrogen gas and the said oxygen gas collect | recovered in the said separation recovery process in the hydrogen combustion type warm air generation method of Claim 6, It is characterized by the above-mentioned. do.

The hydrogen combustion type hot air generation method of Claim 8 is a hydrogen combustion type warm air generation method of Claim 5 WHEREIN: The said combustion process is performed using a burner, It is characterized by the above-mentioned.

In the hydrogen combustion type hot air generation method of Claim 9, the hydrogen combustion type hot air generation method of Claim 5 WHEREIN: A guide plate is provided in a spiral shape in order to guide reaction gas which arose in the said combustion process in the said furnace body, In the external air temperature raising step, heat exchange between the reaction gas flowing on the guide plate and the external air taken into the heating chamber is performed efficiently.

In the hydrogen combustion type hot air generation method of Claim 10, the hydrogen combustion type hot air generation method of Claim 9 WHEREIN: The reaction gas which generate | occur | produced by the combustion of the said hydrogen gas flows through the inside of the said furnace, and is inside the said heating chamber. Characterized in that it is discharged.

The hydrogen-fired hot air generation method according to claim 11 is the hydrogen-burning hot air generation method according to claim 10, wherein the heating chamber is covered by a preheating chamber, and the reaction gas discharged from the furnace flows directly into the preheating chamber. It is characterized by.

The hydrogen combustion type hot air generation method of Claim 12 returns the said reaction gas from the said preheating chamber to the said heating chamber in the hydrogen combustion type hot air generation method of Claim 11.

The hydrogen combustion type hot air generation method of Claim 13 is the hydrogen combustion type hot air generation method of Claim 5 WHEREIN: It is characterized by drawing out the unreacted hydrogen gas in the said combustion process through the valve in the said furnace body.

The hydrogen combustion type hot air generation method of Claim 14 is a hydrogen combustion type warm air generation method of Claim 5 WHEREIN: The moisture which generate | occur | produced in the said combustion process is taken out from the inside of the said furnace body, It is characterized by the above-mentioned.

A burner for use in the hydrogen combustion type hot air generating method according to claim 15 includes an air transport pipe, a collar portion provided to cover an opening at a tip end of the air transport pipe, and a cutout for air passage, and in the air transport pipe. And a hydrogen transport tube provided through the flange and protruding from the collar portion, and an oxygen transport tube arranged to supply oxygen in front of the front end of the hydrogen transport tube.

A burner for use in the hydrogen combustion type hot air generating method according to claim 16 includes an air transport pipe, a collar portion formed with a cutout portion for air passage provided to cover an opening at a tip end of the air transport pipe, and installed in the air transport pipe. And a hydrogen transport tube penetrating through the collar portion and protruding from the collar portion, and an oxygen transport tube installed in the hydrogen transport tube and protruding from the front end of the hydrogen transport tube.

The burner used for the hydrogen combustion type hot air generation method of Claim 17, The burner used for the hydrogen combustion type hot air generation method of Claim 15 or 16 WHEREIN: The protrusion part of the said hydrogen transportation pipe which protruded from the said collar part. A plurality of fine holes are formed in the outer circumferential wall in both directions.

The burner used for the hydrogen combustion type hot air generation method of Claim 18, The burner used for the hydrogen combustion type warm air generation method of Claim 17 WHEREIN: The said some microhole formed in the front end side of the said hydrogen transport pipe is a circumferential direction It is provided at equal intervals, and the notch part formed in the said collar part is also equally installed in the circumferential direction by the same number as the said microhole.

In the burner used for the hydrogen combustion type hot air generation method of Claim 19, the burner used for the hydrogen combustion type hot air generation method of Claim 17 WHEREIN: The tip of the said oxygen transport pipe | cover is closed and the said oxygen of the vicinity is closed. A plurality of oxygen gas outlets are formed on the outer circumferential wall of the transport pipe at equal intervals in the circumferential direction.

(Effects of the Invention)

According to the invention as set forth in claim 1, water is decomposed into hydrogen gas and oxygen gas in the electrolysis section, and the hydrogen gas obtained by the decomposition is combusted in the furnace body and flowed into a heating chamber provided to surround the furnace body. The outside air is heated up by this combustion heat and sent out of the heating chamber.

Accordingly, it is possible to provide a hydrogen combustion type hot air heater for heating external air by burning hydrogen gas and discharging clean gas containing no greenhouse gas (especially CO ₂ ) in the exhaust gas.

According to the invention of claim 2, the furnace body is formed in a substantially cylindrical shape, and a burner for hydrogen gas combustion provided with a fan for sucking air, and this air heated by combustion of hydrogen gas by the burner are Since a spiral guide plate for guiding the movement inside the spiral shape is provided, the air heated by the burner flows smoothly in the spiral shape.

In addition, since the furnace body has a substantially cylindrical shape, that is, an axial object shape, heat can be transmitted evenly around the furnace body, and the stability of the air temperature discharged from the exhaust pipe provided in the heating chamber can be improved.

According to invention of Claim 3, the preheating chamber which covers a heating chamber is provided, and the external air and the heating chamber of the outer side of a preheating chamber are divided into double wall, and it is suppressed that a heating chamber is cooled by external air.

In addition, since the relatively high temperature reactive gas discharged from the furnace installed in the heating chamber is allowed to flow into the preheating chamber directly through the dedicated passage, the thermal insulation effect of the heating chamber can be further improved.

According to the invention as set forth in claim 4, since the return passage for returning the reaction gas of the preheating chamber to the heating chamber is provided in the preheating chamber, the warm air discharged from the preheating chamber can be used as the warm air to be generated in the heating chamber. Effective utilization can be aimed at.

According to the invention described in claim 5, hydrogen gas generated by decomposing water in the electrolysis step is burned in the combustion step. The temperature in the furnace is raised by the heat generated by this combustion, and the furnace is heated. Around the furnace body, a heating chamber is provided so as to surround the furnace body, and a double container is formed. In the space formed by the outer wall surface of the furnace body, which is an inner container, and the inner wall surface of the heating chamber, which is an outer container, external air is taken in, and the external air is in contact with the outer wall surface of the furnace body to transfer heat from the furnace body to the outside air. This is done. The heated outside air is then discharged out of the heating chamber.

By accepting this method into the apparatus, a heater is generated in which warm air is generated. This heater uses water as a raw material, but after electrolyzing water, if the hydrogen generated by electrolysis is chemically reacted with air (oxygen content of 21%) or oxygen generated by electrolysis, the reaction product is water. Do not discharge. Therefore, since it is possible to perform clean heating which does not contain the greenhouse gas (especially CO ₂ ) in the exhaust gas, it is suitable for use for growing vegetables and fruits in a plastic house (greenhouse), for example.

In addition, since oxygen gas is mixed when the hydrogen gas is combusted, more hydrogen gas causes a chemical reaction with oxygen, and severe combustion occurs. Therefore, a furnace body becomes high temperature and can generate hot air of a higher temperature.

According to the invention of claim 6, since the separation recovery step of separating and recovering the hydrogen gas and the oxygen gas generated by the electrolysis step is provided, the risk of hydrogen gas and oxygen gas reacting and exploding can be avoided. In addition, when hydrogen gas is stored in the gas cylinder, it is convenient for transportation and the use range is widened. Examples of the storage include gaseous hydrogen, liquid hydrogen, metal hydrides, and hydrogenated chemicals such as methanol and ammonia.

According to invention of Claim 7, the hydrogen gas collect | recovered at the separation recovery process is dried. When water vapor is contained in the hydrogen gas, the combustion efficiency of the hydrogen gas is lowered because energy is absorbed in the combustion process, but the decrease in the combustion efficiency can be suppressed by drying the hydrogen gas.

According to the invention of claim 8, since the combustion step is performed using a burner, when hydrogen gas is injected from the burner, a flame in accordance with the injection direction is formed. Therefore, the direction of the flame can be freely determined by changing the direction of the burner. If the air or oxygen flow reacted with the hydrogen gas and the ejection direction of the hydrogen gas coincide, a long tailed flame can be obtained. Compared with the case of generating a normal flame, heating of the surrounding material (for example, heat generation reaching the melting point of the metal material) can be suppressed, and larger heat generation can be performed from the heat load of the apparatus.

According to the invention described in claim 9, the guide plate is provided in a spiral shape in the furnace body, and the reaction gas generated in the combustion process is guided in the spiral shape. Therefore, the time for which the reaction gas stays in the furnace is long, and heat exchange between the reaction gas flowing on the guide plate and the external air taken into the heating chamber is performed efficiently. In addition, the guide plate itself acts as a fin, thereby promoting endotherm of the reaction gas.

According to the invention of claim 10, since the reaction gas generated by the combustion of the hydrogen gas flows into the furnace body and then discharged into the heating chamber, not only the reaction gas is exchanged with the outside air through the furnace body, but also the reaction gas and Since the outside air is directly mixed with each other, it is possible to further promote the temperature increase of the outside air. In addition, in the case where direct reaction gas and external air are mixed without installing a furnace in the heating chamber, the temperature of the exhaust gas becomes high or low, and thus becomes unstable. This is because it takes time until the flow of the fluid in the heating chamber is stabilized, and when the flow rate of hydrogen gas or the like supplied to the outside air or the furnace body is adjusted, it takes time until the flow of the fluid is stabilized. .

According to the invention of claim 11, since the heating chamber is covered by the preheating chamber and a double structure wall is formed, the air layer of the preheating chamber serves as a heat insulating layer, thereby exhibiting high heat insulating properties for the heating chamber. .

In this case, the heating chamber is kept warm and the heating chamber is not cooled by the external cold air even when the apparatus is installed in the cold region, and the combustion efficiency can be improved.

In addition, since the relatively high temperature reaction gas discharged from the furnace flows directly into the preheating chamber, the amount of heat linearly transferred from the inside of the furnace to the outside of the preheating chamber along the heating chamber and the preheating chamber can be reduced, thereby ensuring the warmth of the heating chamber. I can do it.

According to the invention as set forth in claim 12, since the reaction gas discharged to the outside of the preheating chamber flows into the heating chamber through the return flow passage, the relatively high temperature reaction gas flowing through the return flow passage can be mixed with external air taken into the heating chamber. It is possible to generate hot air with good thermal efficiency.

According to invention of Claim 13, the valve for discharging unreacted hydrogen gas in a furnace at the combustion process is provided. When hydrogen gas accumulates, there is a risk of explosion, but safety can be ensured by discharging light hydrogen through a valve installed above the furnace body. In addition, since hydrogen is a harmful substance that destroys the ozone layer, it is necessary to pay attention to the management of the released hydrogen.

According to invention of Claim 14, the water which generate | occur | produced in the combustion process is discharged | emitted from inside a furnace body. If water droplets adhere to the furnace body, the water droplets absorb the heat of the combustion air and the heating efficiency of the furnace body decreases, but this problem can be solved. In addition, water droplets generate | occur | produce as follows.

When the combustion of hydrogen gas is stopped and the supply of air to the furnace at that moment is stopped, gas containing moisture stays in the furnace. As the furnace gradually cools, water vapor condenses in the furnace.

In addition, even when the apparatus is stopped, water droplets are generated when the temperature of the external air suddenly decreases at night or the like and a temperature difference with the air in the furnace occurs.

According to invention of Claim 15, the collar part is provided in the front-end | tip of an air transport pipe so that the opening part formed in the front end may be covered. And the notch part is formed in this collar part so that the air conveyed may pass. In addition, a hydrogen transport pipe is provided in the air transport pipe, which protrudes from the collar through the collar. Therefore, the air which has passed through the collar part is disturbed and moves forward while swirling while inducing the hydrogen gas ejected from the hydrogen transport pipe. At the same time, ignition is also performed.

By advancing in such a swirling manner, when the combustion air enters the furnace body, it is possible to prevent the combustion air from diffusing at once inside the furnace body. Further, the combustion air can be smoothly moved along the guide plate provided in the furnace, whereby a heat exchanger having good performance can be formed.

In addition, oxygen is also supplied from the oxygen transport pipe provided in the hydrogen transport pipe and protruding from the tip of the hydrogen transport pipe, so that the temperature of the combustion gas can be made higher.

According to the invention described in claim 16, the same effect as that of claim 11 is achieved, and an oxygen transport pipe is further provided inside the air transport pipe, and a hydrogen transport pipe is further provided inside the air transport pipe. Therefore, hydrogen gas and oxygen gas can be mixed evenly with the air blown out from the air transport pipe. Therefore, the shape of the flame during combustion can be made uniform in the circumferential direction, and the position of the flame can be stabilized at one place.

According to the invention described in claim 17, since a plurality of micropores are formed along the circumferential direction in the outer circumferential wall of the protruding portion of the hydrogen transport tube protruding from the collar portion, disturbances passing through the cutout portion of the hydrogen gas ejected from the micropores It can be mixed evenly in small amounts in air.

According to the invention described in claim 18, the plurality of micropores formed on the tip side of the hydrogen transport tube are provided at equal intervals in the circumferential direction, and the cutouts formed in the collar portion are provided evenly in the circumferential direction by the same number as the micropores. Therefore, the mixture of air and hydrogen gas can be reliably equalized in the circumferential direction.

According to the invention described in claim 19, since a plurality of oxygen gas ejection openings are formed at the same interval in the circumferential direction on the outer circumferential wall on the tip side of the oxygen transport pipe, oxygen is reliably added to the mixed gas of hydrogen gas and air. can do.

Further, as long as it satisfies the object of the present invention, a configuration in which the above claims are appropriately combined may be employed.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows 1st Embodiment of the hydrogen combustion type hot air heater according to the hydrogen combustion type hot air generation method of this invention.

FIG. 2 is an explanatory diagram showing a structure of an electrolysis unit of the hydrogen-fired hot air heater of FIG. 1.

3 is an explanatory view showing the internal structure of the hydrogen agglomerator of FIG.

FIG. 4 is an explanatory view showing perspectively the electrolysis device of FIG. 1. FIG.

5: is explanatory drawing which shows the structure of the furnace body of FIG. 1, (A) is sectional drawing when the furnace body is seen from the back surface side, (B) is sectional drawing along the X-X line of (A).

It is explanatory drawing which shows the state of the combustion by the burner in the attachment pipe of FIG.

7 is an explanatory diagram showing another embodiment of the burner.

FIG. 8 is an explanatory view showing a heating chamber and a furnace body formed such that the accepted external air turns around the furnace body, (A) is a front view with only the heating chamber in cross section, (B) is YY of (A) It is a section along the line.

FIG. 9 is an explanatory diagram showing a flow of processing of the hydrogen-fired hot air heater of FIG. 1.

FIG. 10 is an explanatory diagram showing a second embodiment of the hydrogen combustion type hot air heater according to the hydrogen combustion type hot air generation method of the present invention. FIG.

Fig. 11 is an explanatory view showing a heating chamber and a furnace body formed such that the accepted external air turns around the furnace body, (A) is a front view in which the heating chamber is a sectional view and the furnace body is an external view, (B) It is sectional drawing along the ZZ line of (A).

(Explanation of the sign)

A Hydrogen combustion hot air heater B Electrolysis unit

B1 electrolysis device B1a electrode plate

B2 Separator B2a Hydrogen Separator

B2b Oxygen Separator B3 Agglomerator

B3a hydrogen agglomerator B3b oxygen agglomerator

B31 Baffle Plate B32 Water Recovery Pipe

B4 Differential Pressure Regulator B5 Dryer

B5a Hydrogen Dryer B5b Oxygen Dryer

B6 pure water manufacturing unit B7 cooler

B8 Power C Noche

C1 combustion section C11 fan

C11a Air Inlet C12 Burner

C13 Flange C2 Outer Wall

C21 mounting pipe C22 opening

C3 Exhaust Pipe C4 Sign

C5 valve C6 window

C61 Through Hole C7 Inner Wall Surface

D heating chamber D1 inlet

D2 warm air outlet D3 side wall

D4 top wall D5 bottom wall

D6 blower D7 connection

E1 hydrogen E2 oxygen supply pipe

E3 Blower E4 Blower

E5 solenoid valve E6 solenoid valve

F water pipe G mounting table

11 Ventilation J Preheating chamber

J1 return Euro K dedicated passage

P Outside air Q Warm air

R air S combustion air

W tap water 1 hydrogen pipe

2 Collar 3 Air Transport Pipe

4 injection hole 5 cutout

6 oxygen transport pipe

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

[First embodiment]

[Overall Structure of Hydrogen Combustion Hot Air Heater (A)]

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a first embodiment of a hydrogen combustion type hot air heater of the present invention (only the heating chamber D is shown to be visible inside).

The hydrogen-fired hot air heater (A) mainly includes an electrolysis unit (B) [electrolysis step] for decomposing water into hydrogen gas and oxygen gas by electrolysis, and the electrolysis unit (B) generated. The furnace body which is separated and recovered by hydrogen gas and oxygen gas [separation recovery step], dried [drying step], and burned in the furnace by using the oxygen gas generated in the electrolysis part B and heated inside ( C) and a heating chamber (D) provided to surround the furnace body (C) and receiving external air (P) and heating it in the furnace body (C), and are discharged.

[Hot air generating mechanism of hydrogen combustion type hot air heater (A)]

First, the function of this hydrogen-fired hot air heater A will be briefly described before entering the detailed description of the electrolysis unit B, the furnace body C, the structure of the heating chamber D, and the like.

The hydrogen-fired hot air heater A of the first embodiment receives the external air P from the inlet D1 of the heating chamber D (see the arrow in FIG. 1), and receives the received external air P. After heating in the furnace body C in a high temperature state, hot air Q is produced | generated by discharging the heated external air P to outside from the hot air blower outlet D2 (refer to the arrow of FIG. 1).

However, the hydrogen-fired hot air heater A of the present invention burns hydrogen gas inside the furnace body C in order to heat the furnace body C itself, which is a heating means of the external air P, to a high temperature state. In this case, it is significantly different from the conventional warm air heater.

This is a great feature of the hydrogen-fired hot air heater (A) of the present invention.

The mechanism of heating the furnace body C by combustion of hydrogen gas, its structure, and the like will be described later in detail, but for the overall understanding of the hydrogen-fired hot air heater A of the present invention, this point is briefly described herein. Describe it.

As shown in FIG. 1, the hydrogen gas generated in the electrolysis unit B is sent to the combustion unit C1 of the furnace body C through the hydrogen supply pipe E1.

Although hydrogen gas is combusted in the combustion section C1, oxygen necessary for combustion of the hydrogen gas is sucked into the combustion section C1 by a fan of the combustion section C1 (see the fan C11 in FIG. 5). Included in the air R (see arrows in FIG. 1).

The oxygen gas generated in the electrolysis unit B is also supplied to the attachment pipe C21 (see FIG. 5) of the furnace body C through the oxygen supply pipe E2.

Blower E3 and blower E4 are provided in hydrogen supply pipe E1 and oxygen supply pipe E2, respectively, and hydrogen and oxygen are supplied from electrolysis part B toward the furnace body C.

Then, part of the oxygen in the air R is consumed by the combustion of the hydrogen gas, and the remaining air R is heated at the same time (combustion step).

In addition, the oxygen gas supplied from the oxygen supply pipe E2 is also chemically reacted with the hydrogen gas and combusted.

And this heated air R passes through the inside of the furnace body C, and is taken out from the exhaust pipe C3 (refer to the arrow of FIG. 1).

In the meantime, this high temperature combustion air S contacts the inner wall surface C7 (refer FIG. 5 (A)) of furnace body C, and furnace body C is heated.

Then, when the outside air P contacts the outer wall surface C2 of the heated furnace body C, the outside air P itself is heated (external air temperature raising step).

Further, the reaction gas generated in the combustion process is guided by a spiral guide plate in the furnace body C, discharged from the exhaust pipe C3 formed in several branches in the heating chamber D, and the discharged reaction gas and heating. Heat exchange is efficiently performed by mixing with external air taken into the chamber (D).

Finally, the external air heated up in the external air temperature raising step is discharged out of the heating chamber D (hot air discharge step).

As described above, since the hydrogen-fired hot air heater A of the present invention performs heating of the furnace body C by combustion of hydrogen gas, the combustion air S (ie, exhaust gas) taken out from the exhaust pipe C3 is heated. It does not contain greenhouse gases (especially CO ₂ ), which makes it very clean.

Therefore, like this embodiment, the exhaust pipe C3 of the furnace body C is formed to be opened in the heating chamber D, and the combustion air S is blown out of the heating chamber D and mixed with the external air P. Even so, the greenhouse gas is not included in the combustion air (S).

On the contrary, when the exhaust pipe C3 of the furnace body C is formed to be opened in the heating chamber D, the hot combustion air S blown out of the exhaust pipe C3 is mixed with the outside air P, and the outside air is mixed with each other. It is extremely useful because the heating efficiency of (P) (or warm air Q) can be improved.

In addition, the combustion air S taken out from the exhaust pipe C3 necessarily includes steam (water) generated by burning hydrogen gas.

In this embodiment, since the hydrogen-fired hot air heater A is assumed to be used for heating the greenhouse (house), the combustion air S is mixed with the external air P, and the warm air Q is steam. There is no problem even if the state containing.

However, when the hydrogen-fired hot air heater A is preferably used for indoor heating in a home or office, for example, when it is preferable that water vapor is not included in the warm air Q, the exhaust pipe C3 may be used. ) May be formed so as to penetrate the wall surface of the heating chamber D, and to be taken out (exhaust) out of the heating chamber D as a matter of course.

Alternatively, the hydrogen-fired hot air heater A may be formed as shown in FIG. 1, and a dehumidification means (for example, a dehumidification filter) may be attached to the hot air outlet D2 of the heating chamber D. Do.

[Structure of Electrolysis Part B]

Next, the structure of the electrolysis part B, the furnace body C, the heating chamber D, etc. are demonstrated.

First, the structure of the electrolysis unit B, and the like will be described.

FIG. 2 is a schematic view for explaining the structure of the electrolysis unit B of the hydrogen-fired hot air heater A. FIG.

In addition, the positional relationship in the figure of each apparatus does not show the positional relationship in the electrolysis part B as it is.

Although not shown, each device is suitably provided with a pressure gauge for measuring the gas pressure in the device, or a safety valve for extracting the gas when the gas pressure in the device becomes excessive.

The electrolysis unit (B) is a generation and purification system of hydrogen and oxygen, and mainly includes an electrolysis unit (B1), a separator (B2) (a hydrogen separator (B2a) and an oxygen separator (B2b)), and an agglomerator (B3) ( Hydrogen condenser B3a and oxygen condenser B3b), and a dryer B5 (hydrogen dryer B5a and oxygen dryer B5b).

In addition, the electrolysis unit B is a system for purifying and circulating water, and mainly includes a pure water producing device B6 and a cooler B7, and further includes a power source B8 as a power supply source.

Referring to the generation and purification system of hydrogen and oxygen, first, water (pure water) is electrolyzed by the electrolysis device B1, and the generated hydrogen gas and oxygen gas are each independently separated from the hydrogen separator B2a and the oxygen separator ( Recovered in B2b).

In FIG. 2, although two electrolysis apparatuses B1 are provided, there is no reason to limit in particular to two apparatuses, You may install as many as needed from a viewpoint of an efficiency etc.

However, when the hydrogen gas and the oxygen gas are recovered in a mixed state, there is a risk that the hydrogen gas may explode due to something. Therefore, it is preferable that both gases can be recovered independently.

The electrolysis device B1 will be described in more detail later.

The hydrogen gas recovered in the hydrogen separator B2a and the oxygen gas recovered in the oxygen separator B2b are cooled by pure water described later in the separator B2, and then hydrogen condenser B3a and oxygen, respectively. It is sent to the flocculator B3b and the water vapor in the gas is removed.

The removal of water vapor from hydrogen gas and oxygen gas is because if there is water vapor in the gas, the combustion efficiency of hydrogen gas may be reduced.

3 is an explanatory view of the internal structure of the partially broken hydrogen agglomerator B3a.

In this manner, a plurality of baffle plates B31 are arranged in the hydrogen agglomerator B3a so as to alternately incline downward.

The hydrogen gas sent from the hydrogen separator B2a rises in the hydrogen agglomerator B3a while colliding with the baffle plate B31.

During this time, water vapor in hydrogen gas adheres to condensation on the baffle plate B31, becomes water droplets, flows down inside the hydrogen agglomerator B3a, and is recovered to the cooler B7 through the water recovery pipe B32 below. (See Figure 2).

In this way, water vapor is removed as much as possible from the hydrogen gas in the hydrogen gas by the hydrogen agglomerator B3a, whereby the conditioning of the hydrogen gas is performed.

In the oxygen agglomerator B3b, similarly, conditioning of oxygen gas is performed.

Hydrogen gas and oxygen gas co-dried by the hydrogen agglomerator B3a and the oxygen agglomerator B3b are sent to the differential pressure regulator B4.

In the differential pressure regulator B4, the pressure of the hydrogen gas and the oxygen gas is compared. When the pressure exceeds the predetermined ratio range, the gas having the higher air pressure is discharged to the outside.

The hydrogen gas and the oxygen gas of the differential pressure regulator B4 are sent to the hydrogen dryer B5a and the oxygen dryer B5b, respectively.

Inside the hydrogen dryer B5a and oxygen dryer B5b, mainly calcium chloride is filled as a desiccant, and hydrogen gas and oxygen gas receive final drying here.

And at least hydrogen gas is sent to the combustion part C1 of the furnace body C through the hydrogen supply pipe E1 (refer FIG. 1) after a flow volume is adjusted through the flowmeter which is not shown in figure.

Next, the water purification and circulation system in the electrolysis unit B will be described (see arrows in FIG. 2).

In the electrolysis device B1, water is required to be decomposed to obtain hydrogen gas and oxygen gas.

In addition, in the electrolysis device B1, potassium hydroxide is suitably added to water in order to promote the electrolysis of water.

The tap water W is sent to the pure water producing device B6 (see FIG. 2) through the water pipe F (see FIG. 1).

At that time, if the tap water W is used for electrolysis as it is, chlorine gas in the tap water W is mixed with hydrogen gas or oxygen gas generated by the electrolysis device B1, or each device of the electrolysis unit B, In particular, the electrode of the electrolysis device B1 is corroded.

Therefore, it is preferable to purify (dechlorine) and use tap water W by the pure water manufacturing apparatus B6 etc. as mentioned above.

By the way, purified water (hereinafter referred to as pure water) may be sent directly to the electrolysis device B1. However, in the present embodiment, as described above, once, the hydrogen separator B2a and the oxygen separator B2b are used. It is sent and used for cooling hydrogen gas and oxygen gas.

This is because heat is generated during electrolysis by the electrolysis device B1, and the hydrogen gas and the like produced by the electrolysis are brought to a high temperature state.

The pure water whose heat has been removed from the hydrogen gas or the like by the hydrogen separator B2a or the like and whose temperature has risen is water recovered from the hydrogen agglomerator B3a or the like described above. It is pure because it is water, and is sent to the cooler B7 and cooled.

Then, it is sent to the electrolysis apparatus B1, and is electrolyzed by the electric power transmitted from the power supply B8.

In addition, as shown in FIG. 2, when pure water is sent from the pure water producing device B6 to the hydrogen separator B2a, air mixed in the pure water enters the hydrogen separator B2a together with the pure water and is mixed with hydrogen gas. It may be discarded.

In such a case, the water supply to the hydrogen separator B2a may be stopped.

For example, it is also possible to form the hydrogen separator B2a so that the wall surface is doubled, to transmit pure water between the inner wall and the outer wall, and to cool the hydrogen gas inside through the inner wall.

Finally, the electrolysis device B1 will be described briefly.

It is already described that the electrolysis device B1 can recover hydrogen gas and oxygen gas independently of each other.

Various types of such electrolysis device B1 are commercially available, and any type of electrolysis device B1 is capable of generating an amount of hydrogen gas capable of heating the temperature of the furnace body C (see FIG. 1) to a required temperature. Even a type thing can be used.

For example, in the electrolysis apparatus B1 (refer FIG. 4) formed by laminating | stacking a some electrode plate, the electrode plate B1a is made of stainless steel, and the surface is polished so that it may become a mirror surface shape, or electrode plate B1a By appropriately adjusting the number of sheets, the amount of hydrogen gas or the like can be increased.

In this embodiment, when the above adjustment is made using the electrolysis device B1 of the type of laminating such electrode plate B1a, the amount of gas generated is 2.27 m ³ / in hydrogen gas (concentration 98.8%). It was found that the oxygen gas (concentration 98.6%) can be improved to 1.13 m ³ / hour or more by time or more.

[Structure of Old Body (C), etc.]

Next, the structure of the furnace body C and the like will be described.

FIG. 5 is a schematic view showing the structure of the furnace body C of the hydrogen-fired hot air heater A, and (A) is a cross-sectional view when the furnace body C of FIG. 1 is seen from the back of FIG. It is sectional drawing along the XX line of (A).

In this embodiment, the furnace body C is formed in substantially cylindrical shape.

As described above, the furnace body C mainly includes a combustion section C1, a cylindrical wall (outer wall surface C2, an inner wall surface C7), and a plurality of exhaust pipes C3 (in this case, six). Doing.

The combustion section C1 includes a fan C11 for sucking air R, and a burner C12 for burning hydrogen gas using oxygen contained in the air R. .

The fan C11 sucks air R from the air inlet C11a, and sends the air R to the burner C12 by the rotation of an internal fan (not shown).

The burner C12 is fitted into the attachment pipe C21 of the furnace body C, and is attached via the flange C13.

FIG. 6: is a schematic diagram which shows the state of combustion by the burner C12 in an attachment pipe.

The burner C12 has the hydrogen transport pipe 1 provided with the collar part 2 for sending hydrogen gas to the front of the burner C12.

Moreover, the air transport pipe 3 is formed in the state behind the collar part 2, and is connected with the collar part 2, and surrounds the hydrogen transport pipe 1 circumference | surroundings.

The hydrogen transport pipe 1 is provided in a state of penetrating the collar portion 2, and the tip portion thereof is blocked.

In addition, the rear end portion of the hydrogen transport pipe 1 is connected to the hydrogen supply pipe E1 shown in FIG.

In the side surface of the portion of the hydrogen transport pipe 1 protruding from the collar portion 2, a plurality of injection holes 4, which are micropores, are provided, and hydrogen gas that has flowed through the hydrogen transport pipe 1 passes through the injection holes. It is sprayed radially from (4).

Moreover, in the collar part 2, in order to blow air R in spiral form, the notch part 5 provided with the shading part is provided in multiple numbers.

When hydrogen gas is sent to the burner C12 formed as described above and ignited, the hydrogen gas injected from the injection hole 4 is transported through the air transport pipe 3 to the air R blown out from the cutout 5. Combustion is carried out by oxygen included, and air R is heated at the same time.

Then, it becomes combustion air S of high temperature, and moves forward like swirling inside the attachment pipe C21 of the furnace body C. As shown in FIG.

Advancing so as to swirl in this way is preferable because the combustion air S can be prevented from spreading at once inside the furnace body C when the combustion air S exits the attachment pipe C21 and enters the furnace body C body. However, this point will be described later.

The oxygen supply pipe E2 is connected to the burner C12, and oxygen is also supplied from the oxygen supply pipe E2. The electromagnetic valve E6 (refer FIG. 5 (A)) is arrange | positioned in the vicinity of the connection part of the burner C12 and the oxygen supply pipe E2, and the inflow amount to the oxygen gas burner C12 is controlled.

Here, by connecting the oxygen supply pipe E2 shown in FIG. 1 to the combustion section C1 or the attachment pipe C21, the oxygen gas generated by electrolysis can be supplied from the electrolysis section B. The hydrogen gas and the oxygen gas generated in the unit (B) can be effectively utilized.

It is a schematic diagram which shows another embodiment of a burner.

The burner C12 has a hydrogen transport pipe 1 having a collar 2 for sending hydrogen gas to the front of the burner C12.

Moreover, the air transport pipe 3 is formed in the state behind the collar part 2, and is connected with the collar part 2, and surrounds the hydrogen transport pipe 1 circumference | surroundings.

The hydrogen transport pipe 1 is provided in a state of penetrating the collar portion 2, and the tip portion thereof is blocked.

In addition, the rear end portion of the hydrogen transport pipe 1 is connected to the hydrogen supply pipe E1 shown in FIG.

A plurality of injection holes 4 are provided on the side surface of the portion of the hydrogen transport pipe 1 protruding from the collar portion 2, and hydrogen gas introduced through the hydrogen transport pipe 1 passes through the injection holes 4. Sprayed radially from.

Inside the hydrogen transport pipe 1, an oxygen transport pipe 6 through which oxygen gas is supplied from an oxygen supply pipe E2 (see FIG. 1) is provided. The oxygen transport pipe 6 is formed through the tip of the hydrogen transport pipe 1, and oxygen gas is supplied from the tip of the oxygen transport pipe 6.

In the collar part 2, the notch part 5 with which the shading part was provided is formed in multiple numbers in order to blow out air R in spiral shape. This cutout part 5 is equally provided with the injection hole 4, and the uniformity in the circumferential direction of the hydrogen gas and air R which are mixed is aimed at.

When hydrogen gas is sent to the burner C12 thus formed and ignited, the hydrogen gas injected from the injection hole 4 is combusted by oxygen contained in the air R blown out from the cutout portion 5, and the oxygen transport pipe ( Oxygen ejected from 6 further increases combustion.

And air R is heated to high temperature.

Then, it becomes combustion air S of high temperature, and moves forward like swirling inside the attachment pipe C21 of the furnace body C. As shown in FIG.

The burner C12 of this embodiment is formed axially and the mixing of hydrogen gas and oxygen gas with respect to air R is also performed axially, so that the shape of the flame during combustion can be made uniform in the circumferential direction. In addition, the position of the flame can be stabilized in one place.

In addition, the front end of the oxygen transport pipe 6 may be closed and the oxygen gas jet ports may be formed on the outer circumferential wall at the same interval in the circumferential direction as in the hydrogen transport pipe 1.

This makes it possible to reliably add oxygen to the mixed gas of hydrogen gas and air R.

By the way, the combustion air S heated by the combustion of hydrogen gas in the combustion part C1 raises the inside of the furnace body C (refer FIG. 5 (A)).

At that time, after the combustion air S enters the furnace body C from the attachment pipe C21, the outer wall of the furnace body C is lifted up inside the furnace body C as it is, without being disturbed, and taken out from the upper exhaust pipe C3. The surface C2 cannot be heated to a sufficiently high temperature and evenly.

As a result, the outside air P taken into the heating chamber D (see FIG. 1) cannot be efficiently heated.

Therefore, in order to sufficiently lengthen the residence time of the combustion air S in the furnace C inside, the guide plate spirally attached to the inside of the furnace C as shown in FIG. C4).

Specifically, the guide plate C4 is attached to the inner wall surface C7 of the furnace body C by welding or the like so as to be spiral, for example.

When it is formed in this way, the combustion air S heated by the combustion of hydrogen gas by the burner C12 of the combustion part C1 is guided by this guide plate C4 along the inner wall surface C7 of the furnace C. It can be guided to move in a spiral in a state.

Therefore, the residence time of the high temperature combustion air S in the furnace body C becomes long, and the outer wall surface C2 of the furnace body C is heated evenly, and the external air P flowing around the same is heated. It can be heated efficiently.

At that time, the flame ejection direction (the same as the injection direction of the combustion air S and the axial direction of the attachment pipe C21) of the flame of the burner C12 generated by the combustion of hydrogen gas is the circular cross section of the furnace body C. It is preferable that the burner C12 and the attachment pipe C21 are attached so as to face the tangential direction of the inner wall surface C7 of the image (see FIG. 5 (B)).

This is because when it attaches in this way, the combustion air S which entered the furnace body C from the attachment pipe C21 can move to the spiral shape very smoothly.

Further, as described above, when the structure of the burner C12 or the like is studied and the combustion air S is advanced to swirl in the attachment pipe C21, the combustion air S is attached to the attachment pipe C21. It is possible to prevent the diffusion of the combustion air S into the furnace body C from being prevented from diffusing into the furnace body C from the opening C22.

If the attachment pipe C21 is attached so as to face the tangential direction of the inner wall surface C7 of the furnace body C as described above, the combustion air S may be smoothly moved to a state in which the spiral moves smoothly. The inner wall surface C7 of the furnace body C can be heated more efficiently and evenly.

In addition, when the operation of the hydrogen combustion type hot air heater A is stopped, hydrogen gas collected in the hydrogen supply pipe E1 may collect in the furnace body C through the hydrogen transport pipe 1 of the burner C12.

In this state, if burner C12 is ignited to operate hydrogen-fired hot air heater A, hydrogen gas accumulated in furnace body C may explode.

In order to prevent such a situation, the valve C5 for discharging the hydrogen gas gathered in the upper part of the furnace C is provided (refer FIG. 5 (A)), and the pipe part is opened to the atmosphere from the outside of the heating chamber D. It is preferable to do so (see Fig. 1).

In this case, it is more preferable to control the valve C5 to automatically open in accordance with the stoppage of the hydrogen-fired hot air heater A, and to close it during operation, because it is simple and safe.

Moreover, it is preferable if the window part C6 for moisture removal is formed below the furnace body C (refer FIG. 5 (A)).

As described above, since the combustion air S contains water vapor generated by the combustion of hydrogen gas, when the furnace body C cools when the hydrogen combustion-type hot air heater A is stopped, the water vapor is kept in the furnace body C. There may be condensation inside.

If water droplets adhere to the inside of the furnace body C or the guide plate C4, since the water absorbs the heat of the combustion air S at the start of operation of the hydrogen-fired hot air heater A, the furnace body C ), The heating efficiency may decrease.

If the window portion C6 for removing water is provided below the furnace body C, such excess water can be removed.

Moreover, since air can enter and exit through the window portion C6, there is an effect that the pressure adjustment in the furnace body C can be automatically performed.

In addition, although the window part C6 for water removal was shown in the state opened to cylindrical shape in FIG. 5 (A), it is naturally possible to provide an opening / closing window as needed (refer to FIG. 8 (A) mentioned later). ).

In addition, in this embodiment, as shown in FIG.5 (A), the solenoid valve E5 is arrange | positioned in the vicinity of the connection part of the hydrogen supply pipe E1 and the combustion part C1 of the furnace body C, and hydrogen gas Flow into the combustion section C1 is controlled.

Moreover, the solenoid valve E6 is arrange | positioned in the oxygen supply pipe E2 in the vicinity of the connection part with the attachment pipe C21 of the furnace C, and the inflow of hydrogen gas to the combustion part C1 is controlled.

In the experiments of the present inventors, when the solenoid valve for propane gas was used as the solenoid valves E5 and E6, there existed a case where hydrogen gas leaked out from this solenoid valve.

This is considered to be due to the cause of hydrogen molecules smaller than propane molecules, etc., and it turned out that higher airtightness is calculated | required by the solenoid valve E5.

[Structure of Heating Room (D), etc.]

The function of the heating chamber D (refer FIG. 1) is as having described in the hot air generation | generation mechanism of the hydrogen-fired type hot air heater A mentioned above.

In addition, when the exhaust pipe C3 of the furnace body C is formed to open in the heating chamber D, as shown in FIG. 1, the heating efficiency of the external air P received from the suction port D1 is increased. Since it is possible, the preferable thing was described.

However, in order to further increase the heating efficiency of the outside air P, studies such as lengthening the contact time between the outside air P received in the heating chamber D and the heated furnace body C as described above are necessary. Do.

Therefore, in this embodiment, the intake port D1 is attached so that the external air P received into the heating chamber D will turn around the furnace C.

FIG. 8: is a figure which shows the heating chamber D and the furnace body C which were formed so that the received external air P might turn around the furnace body C, and (A) is only the heating chamber D. FIG. Front view made into a cross section, (B) is sectional drawing along the YY line of (A).

In this embodiment, the heating chamber D mainly consists of a cylindrical side wall D3, an upper wall D4, and a bottom wall D5.

The heating chamber D is fixed to the upper part of the mounting table G.

Moreover, the furnace body C is arrange | positioned inside the heating chamber D, the attachment pipe C21 and the oxygen supply pipe E2 penetrate the side wall D3, and the valve C5 penetrates the upper wall D4, Moreover, the window part C6 is provided in the state which penetrates the bottom wall D5.

The part which penetrates each wall of each additional heating chamber D of the furnace C is suitably welded or sealed, and is kept airtight.

In addition, in FIG. 8A and FIG. 8B, the combustion part C1 which should be attached to the attachment pipe C21 via the flange C13 was abbreviate | omitted for convenience.

In this embodiment, the suction port D1 tangentially simultaneously with the upper part of the cylindrical side wall D3 of the heating chamber D, similarly to the attachment pipe C21 tangentially attached to the furnace body C. It is attached.

By attaching the suction port D1 in this manner, the outside air P received from the suction port D1 can sufficiently absorb the heat of the heated furnace body C while turning around the furnace body C.

At that time, if the exhaust pipe C3 of the furnace body C is formed to open in the heating chamber D, the outside air P absorbs the heat of the furnace body C and at the same time is taken out from the exhaust pipe C3. The clean combustion air S is mixed with the outside air P so that the heating efficiency of the outside air P is improved.

In this manner, the sufficiently heated external air P, that is, the warm air Q, is discharged to the outside from the warm air blow-out port D2 provided below the side wall D3 of the heating chamber D.

In the experiments of the present inventors, the amount of hydrogen gas generated in the electrolysis unit B1 of the electrolysis unit B is increased to 2.27 m ³ / hour (concentration 98.8%), and the combustion unit C1 of the furnace body C is In the hot air outlet (D2) of the heating chamber (D), at least 70 degrees to 130 degrees hot air (Q) even if it is formed so as to burn hydrogen gas with only air (R) without using the oxygen gas generated in the electrolysis part (B). It was found that can be generated.

In this embodiment, as shown in FIG. 1, the blower D6 for accommodating external air P is attached to the suction port D1.

The external air P is sent from the outside of the heating chamber D to the heating chamber D by the blower D6, and a driving force for turning around the furnace body C in the heating chamber D is provided. Is given.

The blower D6 may be a so-called fan type or a blower type, or may be attached to the hot air blowout outlet D2 or to both the suction inlet D1 and the hot air blowout outlet D2.

The temperature of the warm air Q is basically adjusted to the combustion temperature of the hydrogen gas in the combustion unit C1 of the furnace C, but also the air volume of the blower D6 is adjusted or the electrolysis unit is used. To change the flow rate when the oxygen gas (concentration is almost 100%) generated in (B) is used for combustion of hydrogen gas, or to exhaust the exhaust pipe C3 of the furnace body C to the outside of the heating chamber D. By forming, etc., it is also possible to adjust to higher or lower than the said temperature range.

In addition, a means such as laying a heat insulating material on the upper side of the side wall D3 of the heating chamber D shown in FIG. 8A, the inner surface and the outer surface of the upper wall D4, or both surfaces thereof is employed to obtain the heating chamber D. Heat can be prevented from escaping from the upper side of), and the heating efficiency can be further improved.

In addition, as shown in FIG. 1, the hot air blower outlet D2 is attached to a vinyl pipe, a duct, etc. (henceforth all the ventilation pipes H), and the hot air blown out from the hot air blower outlet D2. Is supplied to the greenhouse (house) or indoors through the ventilation pipe (H).

As above-mentioned, since the combustion air S blown out from the exhaust pipe C3 of the furnace C contains steam, it is also possible to provide a dehumidification means in the warm air blow-out port D2 or its ventilation pipe H.

Next, the flow of the process of the hydrogen combustion type hot air heater A is demonstrated using FIG.

First, the power source B8 is turned on to flow electricity to various electric systems.

Moreover, blower D6, E3, E4 is started.

Next, in step S1, the tap water W is flowed into the water pipe F, and pure water is supplied to the electrolysis device B1 through the pure water production device B6, the separator B2, and the cooler B7.

Next, in step S2, the pure water is decomposed into hydrogen gas and oxygen gas by the electrolysis device B1, and the flow proceeds to steps S3 and S4.

In step S3, the hydrogen gas generated in the electrolysis device B1 is supplied to the hydrogen separator B2a and the hydrogen gas is cooled.

On the other hand, in step S4, the oxygen gas generated in the electrolysis device B1 is supplied to the oxygen separator B2b, and the oxygen gas is cooled.

In step S5, water vapor contained in the hydrogen gas supplied from the hydrogen separator B2a is removed by the hydrogen agglomerator B3a.

On the other hand, in step S6, water vapor contained in the oxygen gas supplied from the oxygen separator B2b is removed by the oxygen agglomerator B3b.

In step S7, the pressure of the hydrogen gas and oxygen gas from hydrogen condenser B3a and oxygen condenser B3b is performed.

When this pressure difference exceeds the predetermined ratio range, the gas with the higher pressure is discharged to the outside.

In step S8, the hydrogen gas which passed through the differential pressure regulator B4 flows into the hydrogen dryer B5a, and hydrogen gas receives final drying.

On the other hand, in step S9, the oxygen gas which has passed through the differential pressure regulator B4 flows into the oxygen dryer B5b, and the oxygen gas receives final drying.

In step S10, hydrogen gas flows into the solenoid valve E5 from the hydrogen dryer B5a via the hydrogen supply pipe E1, and flow volume is adjusted.

On the other hand, in step S11, oxygen gas flows into the solenoid valve E6 from the oxygen dryer B5b through the oxygen supply pipe E2, and flow volume is adjusted.

In step S12, the hydrogen gas (for example, ³ m ³ / h) from the hydrogen supply pipe E1, the oxygen gas from the oxygen supply pipe E2, and the air R sucked from the fan C11 are burned. (C1) (for example, 30,000 kcal / h).

In this step, the oxygen gas from the oxygen supply pipe E2 may not be supplied to the combustion section C1.

Subsequently, in step S13, the reaction gas combusted in the combustion section C1 heats the furnace body C (the upper temperature in the furnace is, for example, about 250 ° C).

Next, in step S14, the reaction gas discharged from the exhaust pipe C3 of the furnace body C and the external air P sucked from the blower D6 are mixed in the heating chamber D (for example, 130 degrees Celsius).

Moreover, this mixed gas is in contact with the furnace C outer wall surface C2, and heat is transferred from the furnace C.

Finally, in step S15, the mixed gas of reaction gas and external air P is discharged | emitted as warm air (for example, about 60 degreeC, external air 15 degreeC) from ventilation pipe H.

Second Embodiment

Since the second embodiment differs only in the structure of the hydrogen-fired hot air heater A as compared with the first embodiment, only the difference is described in detail.

In addition, the same code | symbol is attached | subjected to the same structural member as 1st Embodiment, and the detailed description is abbreviate | omitted.

Fig. 10 is a schematic view showing a second embodiment of the hydrogen-fired hot air heater of the present invention (only the heating chamber D is shown so that the inside thereof is visible).

It is explanatory drawing which shows the heating chamber and furnace body which were formed so that the received external air might turn around the furnace body.

(A) is sectional drawing of a heating chamber and a preheating chamber, and FIG. 11 (B) is sectional drawing along the Z-Z line of FIG. 11 (A).

The hydrogen-fired hot air heater A of the second embodiment receives the external air P from the inlet D1 of the heating chamber D (see the arrow in FIG. 10) and receives the received external air P. After heating in the furnace body C in a high temperature state, hot air Q is produced | generated by discharging the heated external air P to outside from the hot air blower outlet D2 (refer to the arrow of FIG. 10).

In this embodiment, the air inlet D1 is provided in the lower wall surface of the heating chamber D, and the hot air blower outlet D2 is installed in the center of the upper surface of the heating chamber D using the property which becomes light when temperature increases. It is.

The connection part D7 is formed in the hot air blower outlet D2, and the direction of the hot air blower outlet D2 can be rotated freely, and can be changed.

In the outer side of the heating chamber D, the cylindrical preheating chamber J is provided.

The return flow path J1 communicates with the upper end side of this preheating chamber J, and the preheating chamber J and the suction port D1 communicate.

The lower part of the furnace body C is provided with the window part C6 for water removal, The through-hole C61 is formed in the circumferential surface of this window part C6, The furnace body C through this through hole C61. The relatively high temperature reaction gas in) is discharged out of the furnace body (C).

The reaction gas flows directly into the preheating chamber J through the dedicated passage K.

The reaction gas which flowed into this preheating chamber J flows into the return flow path J1 mentioned above, and is returned to the suction port D1.

As described above, when the heating chamber D is covered by the preheating chamber J, and the wall of the dual structure is formed, the preheating chamber J serves as the heat insulating layer, thereby exhibiting high heat insulating properties. .

The heating chamber D is kept warm, and the heating chamber D is not cooled by external cold air even when the apparatus is installed in the cold region, and the combustion efficiency can be improved.

Moreover, the comparatively high temperature reactive gas discharged | emitted in the heating chamber D flows into the preheating chamber J directly through the exclusive channel K so that it may not mutually mix with the air in the heating chamber D, and the heating chamber D After passing through the outer wall of the periphery) is discharged to the outside of the preheating chamber (J), the amount of heat transferred to the outside of the preheating chamber (J) along the heating chamber (D) and the preheating chamber (J) in the furnace (C). It can be made small, and the heat retention of the heating chamber D can be reliably performed.

In addition, since the reaction gas discharged to the outside of the preheating chamber J flows into the heating chamber D through the return flow passage J1, the relatively high temperature reaction gas flowing through the return flow passage J1 is heated in the heating chamber D. It can mix with the outside air taken in, and it can generate | occur | produce the warm air which is thermally efficient.

As mentioned above, although this invention was demonstrated, this invention is not limited only to embodiment mentioned above, Needless to say that various other modifications are possible in the range which does not deviate from the essence.

For example, as long as the required amount of hydrogen gas is generated, it is also possible to use, for example, a device for extracting hydrogen gas from a hydrocarbon or the like instead of the electrolysis device B1.

In addition, in the above embodiment, the case in which the furnace body C is a so-called vertical type, that is, the combustion air S in the furnace body C generally flows in the longitudinal direction (from the bottom up) has been described. Naturally, the so-called horizontal type is also included.

Further, for example, a spiral guide plate C4 is formed in the furnace body C in the same way as the present invention, and combustion air S is formed so as to guide the inside of the furnace body C from upward to downward. Also, the same effects as in the present invention can be obtained.

In addition, the attachment position of the hot air blower outlet D2 to the heating chamber D is not limited to the installation position shown to FIG. 8 (A) and FIG. 8 (B), For example, it is the same as the suction port D1. It is suitably selected, for example, attaching to the cylindrical side wall D3 of the heating chamber D in the tangential direction.

In addition, in FIG.1 and FIG.8, the combustion part C1 (omitted in FIG. 8) of the furnace C is attached to the outer side of the side wall D3 of the heating chamber D, and the outside of the heating chamber D is attached. Although it is shown in the state which sucks air R, it is naturally possible to form so that external air P may be sucked in from inside the heating chamber D. As shown in FIG.

In addition, although the example in which the return flow path J1 and the dedicated channel | path K were provided one by one was demonstrated in FIG. 10 and FIG. 11, you may provide multiple pieces.

The present invention relates to a hydrogen combustion type hot air heater and a hydrogen combustion type hot air generation method. As long as the principle is used, the present invention can be applied not only for heating of a greenhouse but also for controlling air in general buildings, factories, ships, and the like. Do.

Claims (19)

An electrolysis unit for decomposing water into hydrogen gas and oxygen gas by electrolysis; A furnace body heated by burning internally hydrogen gas generated by the electrolysis unit; A heating chamber installed to surround the furnace body, for receiving external air and heating the same in the furnace body and then discharging the furnace body; A preheating chamber covering the heating chamber; A hydrogen combustion type hot air heater, characterized in that a dedicated passage is provided for directly introducing the reaction gas discharged from the furnace body into the preheating chamber. An electrolysis unit for decomposing water into hydrogen gas and oxygen gas by electrolysis; A furnace body heated by burning internally hydrogen gas generated by the electrolysis unit; A heating chamber installed to surround the furnace body, for receiving external air and heating the same in the furnace body and then discharging the furnace body; The furnace body is formed in a cylindrical shape, the burner for burning hydrogen gas having a fan for sucking air, A spiral guide plate for guiding the air heated by combustion of hydrogen gas by the burner to move in a spiral form inside the furnace body; An exhaust pipe for blowing out the heated air, A preheating chamber covering the heating chamber; A hydrogen combustion type hot air heater, characterized in that a dedicated passage is provided for directly introducing the reaction gas discharged from the furnace body into the preheating chamber. The hydrogen-fired hot air heater according to claim 1 or 2, wherein the preheating chamber is provided with a return flow path for returning the reaction gas of the preheating chamber to the heating chamber. Electrolysis process of electrolyzing water into hydrogen gas and oxygen gas, A combustion step of burning the hydrogen gas generated in the electrolysis step with the oxygen gas and raising the temperature in the furnace; An external air temperature raising step of receiving external air in a heating chamber provided to surround the furnace body and bringing the external air into contact with the outer wall surface of the furnace body heated by combustion of the hydrogen gas and raising the external air; It has a hot air discharge step of discharging the outside air heated up in the outside air temperature raising step out of the heating chamber, In the furnace body, a guide plate is provided in a spiral shape to guide reaction gas generated in the combustion process, In the external air temperature raising step, heat exchange between the reaction gas flowing on the guide plate and external air taken into the heating chamber is performed efficiently, The reaction gas generated by the combustion of the hydrogen gas is discharged into the heating chamber after circulating in the furnace body, The heating chamber is covered by a preheating chamber, The reaction gas discharged from the furnace directly flows into the preheating chamber. The method of claim 4, wherein The hydrogen combustion type hot air generation method, characterized in that for returning the reaction gas from the preheating chamber to the heating chamber. Electrolysis process of electrolyzing water into hydrogen gas and oxygen gas, A combustion step of burning the hydrogen gas generated in the electrolysis step with the oxygen gas and raising the temperature in the furnace; An external air temperature raising step of receiving external air in a heating chamber provided to surround the furnace body and bringing the external air into contact with the outer wall surface of the furnace body heated by combustion of the hydrogen gas and raising the external air; It has a hot air discharge step of discharging the outside air heated up in the outside air temperature raising step out of the heating chamber, Hydrogen combustion type hot air generation method, characterized in that the unreacted hydrogen gas in the combustion step to remove the gas from the furnace through a valve. Air transport pipe, A collar portion provided to cover the opening portion of the tip of the air transportation pipe and having a cutout portion for air passage; A hydrogen transport tube installed in the air transport pipe and protruding from the collar part through the collar part; A burner for use in a hydrogen combustion type hot air generation method, comprising an oxygen transport pipe arranged to supply oxygen to the front of the hydrogen transport pipe. Air transport pipe, A collar portion provided to cover the opening portion of the tip of the air transportation pipe and having a cutout portion for air passage; A hydrogen transport tube installed in the air transport pipe and protruding from the collar part through the collar part; A burner for use in the hydrogen combustion type hot air generating method, characterized by having an oxygen transport pipe provided in the hydrogen transport pipe and protruding from the tip of the hydrogen transport pipe. The hydrogen combustion type hot air generating method according to claim 7 or 8, wherein a plurality of micropores along a circumferential direction are formed in an outer circumferential wall of the protruding portion of the hydrogen transport pipe protruding from the collar portion. burner. 10. The method of claim 9, wherein the plurality of micropores formed on the tip side of the hydrogen transport pipe are provided at equal intervals in the circumferential direction, And the cutout portion formed in the collar portion is equally provided in the circumferential direction by the same number as the micropores. 10. The hydrogen lead of claim 9, wherein a tip of the oxygen transport pipe is closed and a plurality of oxygen gas ejection ports are formed at the same interval in the circumferential direction on the outer circumferential wall of the oxygen transport pipe in the vicinity thereof. Burner for small hot air generating method. delete delete delete delete delete delete delete delete

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