JP2008020156A - Hot water boiler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water boiler with inexpensive fuel costs, superior in functions such as carrying out complete combustion of woody powder and grain. <P>SOLUTION: The hot water boiler is composed of a woody granular object input opening 12, a combustion mechanism part 10 provided with a first jacket chamber 15 having a first hot water jacket 16 right above a substantially cylindrical combustion chamber 11 having a ventilation opening 14 communicated with a compulsive fan 13, a dust collection mechanism part 20 provided with a second jacket chamber 24 having a cylindrical inner tube 22 right above a substantially cylindrical dust collection chamber 21 provided adjacent to the combustion mechanism part 10, communicated with the first jacket chamber 15 by a connection pipe 23, and having a second hot water jacket 25 communicated with the first hot water jacket 16, a fuel supply mechanism part 30 provided adjacent to the combustion mechanism part 10 and automatically supplying woody granular object fuel F to the woody granular object input opening 12, and a communication mechanism part 40 communicating the first hot water jacket 16 and/or the second hot water jacket 25 with a facility H to be heated/dried. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hot water boiler that generates hot water or steam by heat generated in a hot water boiler and uses it for heating in a greenhouse or the like.

  2. Description of the Related Art Conventionally, hot water boilers have been used that produce hot water and steam using heat generated when burning woody granular materials with a hot water boiler.

  Such a conventional hot water boiler has a big problem to be improved, such as an increase in cost, because the woody granular material is burned only with petroleum-based fuel. Further, since the combustion chamber and the dust collection chamber are formed in a rectangular tube shape, there is a problem that incomplete combustion is likely to occur, and there is room for improvement as a boiler.

  The present invention was devised in view of these problems, and an object of the present invention is to provide a hot water boiler that is inexpensive in fuel cost and has an excellent function of being able to completely burn a wood powder granule.

  This will be described with reference to FIGS. The hot water boiler 1 according to claim 1 is for producing hot water using heat generated when wood powder particles are burned by the hot water boiler, and is used for supplying the wood particulate fuel F. A first jacket chamber 15 having a first hot water jacket 16 on the top wall and a peripheral wall portion is provided immediately above a substantially cylindrical combustion chamber 11 having a granular material inlet 12 and a vent 14 communicating with a forced fan 13. The combustion mechanism section 10 and a substantially cylindrical dust collection chamber 21 provided adjacent to the combustion mechanism section 10 have a cylindrical inner cylinder 22, and the first jacket chamber 15 and the connecting pipe. A second jacket chamber 24 having a second hot water jacket 25 communicating with the first hot water jacket 16 is provided on the top wall portion and the peripheral wall portion, and a chimney 26 is continuously provided on the inner cylinder 22. The dust collection mechanism 20 and the combustion mechanism 1 , A fixed quantity feeder 31 containing a wood particulate fuel F, and a screw pipe 32 provided in the conveying pipe 33 and communicating with the wood grain inlet 12 are provided, and the quantitative quantity is provided. A fuel supply mechanism 30 for automatically supplying the wood particulate fuel F to the wood particulate inlet 12, the first hot water jacket 16 and / or the second hot water jacket 25, and heating and drying And a communication mechanism unit 40 that communicates with the equipment H.

  Note that the wood particulate fuel F includes pellets obtained by pulverizing wood and waste wood chips obtained by cutting or the like, and solidified into a solid form, or slightly larger briquettes.

  The hot water boiler 1 according to claim 2 generates steam using heat generated when wood powder particles are burned by the hot water boiler, and supplies wood particulate fuel F. A combustion mechanism section 10 provided with a first boiler chamber 15A having a first consistent flow boiler 16A immediately above a substantially cylindrical combustion chamber 11 having a particulate material inlet 12 and a vent hole 14 communicating with a forced fan 13; A cylindrical inner cylinder 22 is provided immediately above a substantially cylindrical dust collection chamber 21 provided adjacent to the combustion mechanism section 10, and is communicated with the first boiler chamber 15A through a connecting pipe 23. A second boiler chamber 24A having a two-through boiler 25A is provided, and a dust collecting mechanism portion 20 having a chimney 26 standing on the inner cylinder 22 is provided adjacent to the combustion mechanism portion 10, and a wood particulate fuel. The fixed quantity feeder 31 storing F is transferred to the transport pipe 3. A screw conveyor 32 which is provided with a rotary screw 34 and communicates with the wood particulate material inlet 12 is provided to automatically supply the wood particulate fuel F of the quantitative feeder 31 to the wood particulate material inlet 12. It consists of the supply mechanism part 30, the said 1st continuous flow boiler 16A or / and the 2nd once-through boiler 25A, and the communication mechanism part 40 which connects the to-be-heated and drying equipment H.

  The hot water boiler 1 according to a third aspect is the invention according to the first aspect, wherein the first hot water jacket 16 and the first hot water jacket 16 extend from the top wall portions of the first jacket chamber 15 and the second jacket chamber 24 to the lower end portions of the peripheral wall portions. A hot water pipe 17 communicating with the two hot water jackets 25 is provided.

  The hot water boiler 1 according to claim 4 is characterized in that, in the invention according to claim 1, 2, or 3, the heated / drying equipment H is a greenhouse / wood dryer.

  In the hot water boiler 1 according to claim 1, since the first hot water jacket 16 and / or the second hot water jacket 25 are communicated with the heated / drying equipment H by the communication mechanism 40, The warm water of the first warm water jacket 16 and / or the second warm water jacket 25 heated by the heat generated when the particles are burned can be used effectively. In addition, since the 1st warm water jacket 16 and the 2nd warm water jacket 25 contain water, they exhibit a fire resistance function similarly to a fire brick.

  In addition, a wood particulate material inlet 12 is provided in the combustion chamber 11 and a wood particulate fuel F such as pellets is introduced from the combustion chamber 11 so that the wood powder particles are burned. Therefore, effective utilization of felled wood, waste wood chips, etc. In addition, the consumption of petroleum-based fuel can be reduced and the fuel cost can be reduced.

  Further, since the combustion chamber 11 is cylindrical, the wood particulate fuel F can be completely burned along with the air supplied from the vent hole 14 while smoothly circling along the peripheral wall. Accordingly, dust can be prevented from being generated due to incomplete combustion. Incidentally, if the combustion chamber 11 has a rectangular tube shape, the wood particulate fuel F accumulates in the corner portion, so that contact with air becomes insufficient, and complete combustion is difficult.

  Note that the wood particulate fuel F is automatically supplied by the screw conveyor 32 of the fuel supply mechanism 30, so that the operation for supplying the fuel is easy.

  In addition, since the inner cylinder 22 is provided in the dust collection mechanism portion 20, the soot dust burned in the combustion chamber 11 hits the inner cylinder 22 and falls into the dust collection chamber 21, so that it is prevented from being discharged from the chimney 26 as it is. Can do. Thereby, it is possible to prevent dust from being released into the atmosphere and contaminating the environment.

  In the hot water boiler 1 according to the second aspect of the invention, the first consistent flow boiler 16A and / or the second once-through boiler 25A are communicated with the heated / drying equipment H by the communication mechanism 40, so that the combustion chamber 11, the steam of the first continuous boiler 16A and / or the second once-through boiler 25A generated by being heated by the heat generated when the wood powder is burned can be effectively used.

  In addition, the hot water boiler 1 uses the felled timber and waste wood chips effectively to reduce fuel costs and prevent the generation of new soot and fuel supply, as in the first aspect of the invention. It makes work easier, and also has the effect of preventing environmental pollution by preventing the release of dust.

  According to the third aspect of the present invention, the hot water pipe 17 communicating with the first hot water jacket 16 and the second hot water jacket 25 extends from the top wall portion of the first jacket chamber 15 and the second jacket chamber 24 to the lower end portion of the peripheral wall portion. Since it is provided, the amount of hot water can be increased. Thereby, an abundant amount of warm water can be supplied to the heated / drying equipment H.

  Since the heated / drying equipment H is a greenhouse / wood dryer, the heated / drying equipment 1 can heat the heated / drying equipment H by the heat of hot water or steam. Thereby, the heat | fever which generate | occur | produced with the hot water boiler can be utilized effectively, and the plant etc. in a to-be-heated and drying facility can be grown favorably, or wood can be dried.

  A first embodiment of a hot water boiler 1 according to the present invention is shown in FIGS. 1 and 2. This produces hot water using the heat generated when wood powder particles are burned by a hot water boiler. The combustion mechanism unit 10, the dust collection mechanism unit 20, the fuel supply mechanism unit 30, and the communication mechanism unit 40 are used. It consists of.

  The combustion mechanism section 10 has a top wall portion directly above a substantially cylindrical combustion chamber 11 having a wood particulate material inlet 12 for feeding the wood particulate fuel F and a vent hole 14 communicating with the forced fan 13. A first jacket chamber 15 having a first hot water jacket 16 is provided on the peripheral wall portion. The combustion chamber 11 is formed of refractory bricks, and a burner 18 for burning petroleum fuel is provided on the peripheral wall portion. The first hot water jacket 16 is provided with a hot water supply port 16a for supplying new water and a steam vent 19 for controlling the internal pressure.

  The dust collection mechanism 20 has a cylindrical inner cylinder 22 immediately above a substantially cylindrical dust collection chamber 21 provided adjacent to the combustion mechanism 10, and communicates with the first jacket chamber 15 and the connection pipe 23. The second jacket chamber 24 having the second hot water jacket 25 is provided on the top wall portion and the peripheral wall portion, and the chimney 26 is erected continuously from the inner cylinder 22. The second hot water jacket 25 is provided with a steam vent 28. Moreover, although the inner cylinder 22 is formed with a refractory material, it can be replaced with a structure in which warm water is stored therein. In that case, as shown with the imaginary line of FIG. 2, it connects with the hot water pipe | tube 17 (or 2nd hot water jacket 25) with the connection pipe 25a.

  The second hot water jacket 25 communicates with the first hot water jacket 16 via a water passage 23a formed in the peripheral wall portion of the connection pipe 23, but is configured so as to be independent of each other and used as a hot water boiler. You can also The chimney 26 is provided with an air pipe 27 that communicates with the forced fan 13, and air is supplied from the forced fan 13. A discharge port 29 for taking out ash is provided at the lower end of the dust collection chamber 21.

  The fuel supply mechanism unit 30 is provided adjacent to the combustion mechanism unit 10. The fuel supply mechanism unit 30 includes a fixed-quantity supply unit 31 in which the wood particulate fuel F is stored. The screw conveyor 32 which communicates is provided, and the wood particulate fuel F of the fixed quantity feeder 31 is automatically supplied to the wood particulate inlet 12.

  The communication mechanism 40 communicates the first hot water jacket 16 and the second hot water jacket 25 with the heated facility H, and includes a hot water storage chamber 42 having a built-in connection pipe 41 and a heater 43, and a pump 44. . In FIG. 2, reference numeral 52 denotes a burner fan unit, and reference numeral 53 denotes cistern.

  This hot water boiler 1 acts as follows. After the wood particulates are put into the combustion chamber 11 and burned by the burner 18, the required amount of wood particulate fuel F is automatically supplied from the fuel supply mechanism 30. This supply can be easily performed because the wood particulate fuel F stored in the quantitative feeder 31 is automatically carried by the appropriate amount of the screw in the carrying pipe 33 continuously carried by the screw.

  At this time, air is supplied from the forced fan 13 to the combustion chamber 11 to accelerate combustion. Since the combustion chamber 11 has a substantially cylindrical shape, the wood particulate fuel F completely burns along with the air while being smoothly moved along the peripheral wall and being supplied with abundant air. By this combustion, the warm water in the first warm water jacket 16 is effectively heated.

  The hot air and dust generated in the combustion chamber 11 reaches the dust collection mechanism portion 20 through the connection pipe 23, and then falls into the lower dust collection chamber 21 by hitting the inner cylinder 22. Therefore, it is not released into the atmosphere through the chimney 26 as it is. In addition, the wood particulate fuel F that has not been burnt completely burns in the dust collection chamber 21. The warm water of the second jacket is heated by the heat and warm air at this time. The ash accumulated in the dust collection chamber 21 is taken out from the discharge port 29.

  The hot water in the first hot water jacket 16 and the second hot water jacket 25 is carried to the hot water storage chamber 42 through the connection pipe 41. The hot water is further heated by the heater 43 as necessary, and then supplied to the heated equipment H such as a greenhouse or a building by the pump 44.

  The hot water boiler 1 according to the present embodiment uses the hot water heated by the heat generated when the wood powder particles are burned in order to warm the heated equipment H, so that the energy can be effectively used. .

  In the present embodiment, a hot water pipe 17 communicating with the first hot water jacket 16 and the second hot water jacket 25 is provided from the top wall portion of the first jacket chamber 15 and the second jacket chamber 24 to the lower end portion of the peripheral wall portion. Yes. As a result, the amount of hot water is increased so that abundant hot water can be supplied to the heated facility H. This hot water can be used for heating a building in addition to a greenhouse.

  FIG. 3 shows a second embodiment of the hot water boiler 1 according to the present invention. The hot water boiler 1 is characterized in that the combustion mechanism section 10 is provided with a first consistent flow boiler 16A, and the dust collection mechanism section 20 is provided with a second once-through boiler 25A. Along with this, a safety valve 50 and a water level gauge 51 are provided. Other components are the same as those in the first embodiment.

  A once-through boiler pumps water from one end of a long pipe and is heated, evaporated and heated in the middle, and is sent out as heated steam from the other end. It has the feature of being easy.

  The hot water boiler 1 supplies the steam generated in the first integrated flow boiler 16A and the second once-through boiler 25A to the heated equipment H via the communication mechanism 40, and warms the heated equipment H with the heat of the steam. It is intended for use. Thereby, the heat which generate | occur | produces when burning a wooden granular material can be utilized effectively, without discarding.

Moreover, the hot water boiler which concerns on above-described 1st embodiment and 2nd embodiment has the following characteristics.
(A) Since the combustion mechanism section 10 and the dust collection mechanism section 20 are of a so-called two-cylinder type, they can be easily and effectively used, for example, supplying hot water and steam from each mechanism section to a plurality of facilities.
(B) By using wood particulates as the wood particulate fuel F, the temperature of the combustion mechanism 10 and the dust collection mechanism 20 can be increased in a short time. Further, since the combustion chamber 11 and the dust collection chamber 21 are substantially cylindrical, the temperature rise time can be advanced by 30% or more compared to the rectangular tube type.
(C) Since the combustion chamber 11 and the dust collection chamber 21 are substantially cylindrical, the wood particulate fuel F swirls along the circumferential surface thereof, and the residence time in the combustion chamber 11 and the like becomes longer. Accordingly, the combustion chamber 11 and the like are easily burned, and are likely to become high temperature in a short time. Furthermore, the amount of fuel used can be reduced.
(D) Since air is supplied from the forced fan 13, the entire combustion chamber 11 can be heated at a stretch. Moreover, the amount of ash can be reduced.
(E) When using a once-through boiler, steam can also be used. The once-through boiler uses steam, but since it is small in size, it does not require qualification and is easy to handle. In the case of the hot water jackets 16 and 25, the present invention does not require qualification because the pressure is low, and the handling is easy.

  The hot water boiler according to the present invention is most suitable for heating equipment for other purposes.

1 is a partial cross-sectional front view showing a first embodiment of a hot water boiler according to the present invention. It is XX sectional drawing of the hot water boiler shown in FIG. It is a fragmentary sectional principal part front view which shows 2nd embodiment of the hot water boiler which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hot water boiler 10 Combustion mechanism part 11 Combustion chamber 12 Wood granular material inlet 13 Forced fan 14 Ventilation opening 15 1st jacket chamber 15A 1st boiler chamber 16 1st hot water jacket 16A 1st consistent flow boiler 16a Hot water supply port 17 Hot water pipe 18 Burner 19 Vapor removal 20 Dust collection mechanism 21 Dust collection chamber 22 Inner cylinder 23 Connection pipe 23a Water passage 24 Second jacket chamber 24A Second boiler chamber 25 Second hot water jacket 25a Connection pipe 25A Second once-through boiler 26 Chimney 27 Air pipe 28 Vapor release 29 Discharge port 30 Fuel supply mechanism 31 Constant supply machine 32 Screw conveyor 33 Transfer pipe 34 Rotating screw 40 Communication mechanism 41 Connection pipe 42 Hot water storage chamber 43 Heater 44 Pump 50 Safety valve 51 Water level gauge 52 Burner fan unit 53 Cistern F Wood particulate fuel H Heating and drying equipment

Claims (4)

  A hot water boiler for producing hot water using heat generated when wood powder particles are burned in a hot water boiler, the wood particulate material inlet (12) for charging wood particulate fuel (F), And a first jacket chamber (1) having a first hot water jacket (16) on the top wall and a peripheral wall immediately above a substantially cylindrical combustion chamber (11) having a vent (14) communicating with the forced fan (13). 15) a combustion mechanism section (10) having a cylindrical inner cylinder (22) directly above a substantially cylindrical dust collection chamber (21) provided adjacent to the combustion mechanism section, A second jacket chamber (24) having a second warm water jacket (25) communicating with the first warm water jacket on the top wall portion and the peripheral wall portion; A dust collection mechanism (20) having a chimney (26) erected in succession to the inner cylinder; A fixed quantity feeder (31) provided adjacent to the combustion mechanism and containing a wood particulate fuel is equipped with a rotary screw (34) in a conveying pipe (33) and communicates with the wood particulate inlet. A screw conveyor (32), a fuel supply mechanism (30) for automatically supplying the wood particulate fuel of the quantitative feeder (31) to the wood particulate inlet, and the first hot water jacket or / and A hot water boiler comprising a second hot water jacket and a communication mechanism (40) communicating the heated / drying equipment (H).   A hot water boiler that generates steam by using heat generated when wood powder particles are burned in a hot water boiler, and supplies the wood particulate fuel (F) to the wood particulate inlet (12), And a combustion in which a first boiler chamber (15A) having a first consistent flow boiler (16A) is provided immediately above a substantially cylindrical combustion chamber (11) having a ventilation port (14) communicating with a forced fan (13). A cylindrical inner cylinder (22) is provided immediately above a mechanism portion (10) and a substantially cylindrical dust collection chamber (21) provided adjacent to the combustion mechanism portion, and the first boiler chamber and A dust collecting mechanism portion (20) provided with a second boiler chamber (24A) having a second once-through boiler (25A) communicated by a connecting pipe (23), and having a chimney (26) standing continuously from the inner cylinder; , A fixed quantity feeder (31) which is provided adjacent to the combustion mechanism section and stores the wood particulate fuel. In addition, a rotary screw (34) is provided in the conveying pipe (33), a screw conveyor (32) communicating with the wood particulate material inlet is provided, and the wood particulate fuel of the quantitative feeder is supplied to the wood particulate material inlet. A communication mechanism (40) that communicates between the fuel supply mechanism (30) that automatically supplies the fuel, the first flow boiler or / and the second once-through boiler (25A), and the heated / drying facility (H). ) And a hot water boiler.   A hot water pipe (17) communicating with the first hot water jacket (16) and the second hot water jacket (25) from the top wall portion of the first jacket chamber (15) and the second jacket chamber (24) to the lower end portion of the peripheral wall portion. The hot water boiler according to claim 1, wherein: The hot water boiler according to claim 1, 2 or 3, wherein the heated / drying facility (H) is a greenhouse / wood dryer.

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