JP3148663U - Hot water reactor for wood fuel - Google Patents

Abstract

Provided is a high-safety wood water fuel hot water reactor that can supply a certain amount of wood fuel to a combustion chamber 2 in an unattended state for a long time and that does not cause a fire or the like. A kiln 1 is provided with a water chamber having a double wall structure. Both ends of the air ejection pipe 5 are opened in the outer wall of the kiln 1 so as to take in air. The wood insertion pipe 9 has an axial extension line having an acute angle with respect to the bottom surface of the kiln 1 and opens into the combustion chamber. The water tank 10 is formed in a bottomed box shape having an open upper surface, and a chimney 11 is provided inside. A water tank 10 is placed and fixed on the kiln 1. Below the draft line of the aquarium 10, the circulation port 12 for sending out the high temperature water 36 in the aquarium 10 to the greenhouse is opened. A circulation port 4 through which water is fed back is opened in the water chamber, and the circulation ports 12 and 4 are connected by a circulation pipe to form a pipe line. [Selection] Figure 1

Description

  The present invention relates to a wood-fueled hot water furnace, and more specifically, supplies hot water to a hot water pipe provided for the purpose of heating in a greenhouse when cultivating or horticulture vegetables, fruits, flowers, etc. in a greenhouse for agriculture or horticulture. It relates to a hot water reactor for woody fuel.

  Greenhouse cultivation is widely performed in order to stably supply vegetables and flowers to the market. Since the growth of plants is greatly affected by the amount of light irradiation, the irradiation time and the temperature, the greenhouse is generally covered with a vinyl film or an acrylic plate that can transmit sunlight. The temperature in the greenhouse rises to the desired temperature by solar heat during the day, but after sunset, it suddenly decreases due to heat radiation to the land and heat radiation that penetrates the vinyl film, which is a component of the greenhouse. It becomes almost the same temperature. This rapid temperature drop causes cold damage. Therefore, especially at night, it is necessary to maintain the temperature in the greenhouse at a temperature necessary for plant growth. 2. Description of the Related Art Conventionally, as a means for heating the inside of a greenhouse, a method has been proposed in which a duct is stretched around the greenhouse and heated air generated by a heavy oil combustion apparatus provided outside the greenhouse is supplied into the duct. However, a heating means that uses heavy oil as a heat source requires heavy oil costs and transportation costs for heavy oil, and the price of harvested crops depends on the price of heavy oil and heavy oil transportation, and supplies stable prices to the market. There was a drawback that it was difficult to do. Substances released by burning heavy oil also contribute to environmental problems. Moreover, it is preferable not to rely on as much as possible from the viewpoint of depletion of fossil fuel resources such as heavy oil.

In view of the shortcomings of the heating means using heavy oil, it has been proposed to use wood fuel using waste as a heat source for raising the temperature in the greenhouse.
For example, an exhaust duct is openly connected to a wood combustion chamber having a wood inlet with an open / close door on the front of the kiln, a water cooling jacket is provided on a part of the exhaust duct, and the water cooling jacket has a double wall structure. A refrigerant passage through which water circulates inside the double wall structure, a burner using kerosene as a heat source is provided upstream of the position of the water cooling jacket in the exhaust duct, and the water cooling jacket extends into the greenhouse. A greenhouse heating device has been proposed in which moisture evaporated from a steam outlet formed in a water cooling jacket is diffused into the greenhouse, and an end opening of the exhaust duct is exhausted outside the greenhouse (for example, Patent Document 1).
In the heating apparatus described in Patent Document 1, a water cooling jacket is stretched around the greenhouse, and water inside the double wall structure of the water cooling jacket is discharged as steam from the steam outlet to heat the greenhouse. Therefore, it is necessary to always burn the wood in the wood combustion chamber during use and to drive the burner to prevent the exhaust temperature from decreasing. For this reason, there is a problem in that it requires two types of fuel, wood and kerosene for burners, which is uneconomical. In addition, the door provided on the front of the kiln must be opened and the presence or absence of wood in the wood combustion chamber should be visually confirmed to make frequent replenishment of wood. Furthermore, since the volume inside the double wall structure of the water cooling jacket is not large, it is necessary to replenish water frequently. In particular, greenhouse heating is often used when the temperature drops during the night or in the winter, and the manager responsible for the temperature control of the greenhouse must regularly supply and control timber and water without taking a break at night, and imposes heavy labor. There was a problem of being.
In addition, a water chamber is provided on the peripheral side wall, and a water pipe is provided in the combustion chamber with an open / close lid on the front, and water that has become hot due to heat exchange with the combustion chamber and smoke chamber is laid in the greenhouse. There has been proposed a wood-fueled hot water reactor in which the pipe is returned to the water chamber (see, for example, Patent Document 2).
In the case of the wood-fueled hot water reactor described in Patent Document 2, there is only one shed, and when the wood fuel is replenished to the combustion chamber, the wood fuel must be periodically supplied from the shed. There was a problem that it was impossible to circulate and supply hot water to the greenhouse without refueling for a long time.
Patent Document 3 describes that pipes are provided on the bottom, side, or outer wall of a carbonization furnace, and water heated by heat generated in the carbonization furnace is used for various applications.
Since a charcoal furnace is a furnace for producing charcoal, this material must not be burned. Therefore, in the case of the furnace described in Patent Document 3, it is actually impossible to obtain high-temperature water that can raise the temperature of the greenhouse to a satisfactory temperature. In addition, since the contents described in Patent Document 3 are merely vague proposals and lack in concreteness, the background art is not a material to be compared with the present invention.
Registered Utility Model Gazette of Utility Model Registration No. 3122295 Japanese Utility Model Publication No. 4-24354 JP 2008-214504 A

  The present invention was devised in view of the problems of the prior art described above, and has a simple structure in which a wood insertion pipe capable of inserting and supporting wood fuel obtained by cutting a raw wood into a short length is connected to the combustion chamber in an open communication connection. Another object of the present invention is to provide a highly safe wood water fuel hot water reactor that can supply a certain amount of wood fuel to the combustion chamber in an unattended state for a long time and that does not cause a fire or the like.

The invention described in claim 1 is a wood-fueled hot water reactor comprising a kiln and a water tank, wherein the kiln is provided with a wood combustion chamber equipped with a fuel input port and air supply means, and a double wall is provided on the peripheral side wall. A wall structure portion is provided, the double wall portion is formed as a water chamber, the water tank is formed in a bottomed body having a chimney penetrating in the height direction, and the air heated in the combustion chamber of the kiln is from the chimney The lower end of the chimney is opened to the combustion chamber of the kiln so as to be able to be exhausted, and the water chamber and the water tank are connected with a pipe so that water in the water chamber can be fed to the water tank, and returned to the water chamber. In a wood-fueled hot water reactor in which a circulation pipe is connected in an open connection, and a water supply circulation pipe is connected in an open connection to the water tank, a raw wood cut in a short length can be smoothly supplied into the combustion chamber by its own weight. Open connection connection of wood insertion pipe for inserting raw wood into the kiln, Wood insert pipe characterized by comprising providing a kiln so as to be inclined with a sharp angle to the axis extension line said kiln bottom of timber insertion pipe.
The invention according to claim 2 is a wood-fueled hot water reactor comprising a kiln and a water tank, wherein the kiln is provided with a wood combustion chamber provided with a fuel input port and air supply means, and the periphery of the wood combustion chamber is provided. A double wall structure portion is provided on the side wall, the double wall portion is formed as a water chamber, and the water tank is formed in a bottomed body having a chimney penetrating in a height direction and heated in the combustion chamber of the kiln. The air can be exhausted from the chimney, the lower end of the chimney is opened to the combustion chamber of the kiln, and the water chamber and the water tank are connected by a pipe so that water in the water chamber can be fed to the water tank. In a wood-fueled hot water reactor in which a return circulation pipe is connected to the water chamber through an open communication, and a water supply circulation pipe is connected to the water tank through an open communication to form a first pipe, To insert raw wood into the kiln so that it can be smoothly fed into the combustion chamber by its own weight A wood insertion pipe is connected in an open communication, and the wood insertion pipe is provided in the kiln so that an axial extension line of the wood insertion pipe is inclined with an acute angle with respect to the bottom surface of the kiln, and slightly below the water line of the water tank A heat exchanger is disposed at a position, and both ends of the heat exchanger are water-tightly opened on opposing circumferential walls of the water tank, and water sent from one of the openings exchanges heat with high-temperature water in the water tank. The hot water is formed, and the hot water is formed so as to be sent out from the other opening.

  Since the inclined wood insertion pipe is provided in the combustion chamber in open communication, if a plurality of logs cut into short lengths are inserted into the wood insertion pipe, the raw wood in the combustion chamber is completely burned and ashed. If the raw wood is dead, the raw wood located at the bottom of the wood insertion pipe is supplied to the combustion chamber, and there is an effect that no labor is required for fuel supply or fire management for a long time such as at night.

  By connecting the wood insertion pipe to the combustion chamber in addition to the fuel injection port, it is possible to supply wood fuel from the wood insertion pipe without opening the port during combustion, and the axis extension line of the wood insertion pipe is a kiln. By providing an inclination with an acute angle to the bottom, the wood inserted into the wood insertion pipe descends into the combustion chamber due to its own weight, and a certain amount of wood fuel is always supplied to the combustion chamber. Realized.

FIG. 1 is a right side view of a wood-fueled hot water reactor, FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 with the lid closed, and FIG. It is a BB sectional view.
1 to 3, the kiln 1 is formed in a bottomed box shape in which a top surface is opened using a metal rod such as an iron plate and a combustion chamber 2 is provided inside. The left and right side walls excluding the front side portion of the kiln 1 and the rear side wall are formed in a double wall structure. The double wall structure portion is a water chamber 3 in which water as a coolant circulates. The circulating fluid is not limited to water but may be an antifreeze. A circulation port 4 through which water is fed back is connected to the water chamber 3 in open communication. An air ejection pipe 5 is disposed in the combustion chamber 2 along the inner wall surface in a U-shape in a plan view. An air ejection hole (not shown) is formed in the air ejection pipe 5 so that air is supplied in a vortex shape in the combustion chamber 2. Both ends of the air ejection pipe 5 are opened in the single wall portion of the front side portion of the left and right side walls, and form air intake ports 6 and 6. The air intake ports 6 and 6 are provided with a blower (not shown) for efficiently sending air into the air ejection pipe 5. The guide plate 7 is suspended from the front side wall to the bottom surface at a position in front of the lower air intakes 6 and 6 in the combustion chamber 2, and the wood fuel supplied from the wood insertion pipe 9 is supplied to the fuel chamber. 2 is guided to be sent to an appropriate position.
The front side wall of the kiln 1 is formed in the inclined surface 8 which inclines upward from the halfway part in the height direction. A wood insertion pipe 9 is open-connected to the inclined surface 8, and a hollow portion of the wood insertion pipe 9 is provided so as to communicate with the combustion chamber 2. Specifically, the wood insertion pipe 9 is integrally attached to the inclined surface 8 of the kiln 1 so that the extension line of the axis of the wood insertion pipe 9 has an acute angle with respect to the bottom surface of the kiln 1. The size and length of the inner diameter of the wood insertion pipe 9 are not limited, and are determined by the diameter and amount of the wood fuel used. In general, it is possible to insert a plurality of logs that have been cut to a length of about 30 cm and a length of about 30 cm as waste material, and can be burned in the combustion chamber 2 continuously for about 10 hours, with an inner diameter of 30 cm. It is preferable that the axial length exceeds 100 cm. The wood fuel to be inserted into the wood insertion pipe 9 may be a single raw wood exceeding 100 cm. However, in view of the actual use results, a plurality of wood fuels are required in order to efficiently supply the wood fuel to the combustion chamber 2. The raw wood cut into a length of about several tens of centimeters is inserted into the wood insertion pipe 9 so that it is smoothly supplied to the combustion chamber 2.

  The water tank 10 is formed in a bottomed box shape with an open upper surface, and a chimney 11 is provided in the inside in the vertical direction. The chimney 11 has a lower end opened at the bottom of the water tank 10 and an upper end located above the water tank 10. The horizontal width of the bottom surface of the water tank 10 is formed so as to coincide with the horizontal width of the upper surface of the kiln 1. The length in the front-rear direction of the water tank 10 is shorter than the length in the front-rear direction of the upper surface of the kiln 1. Just below the water line of the aquarium 10, a circulation port 12 for opening the hot water 36 in the aquarium 10 to the greenhouse is opened in the greenhouse, and a circulation pipe 18 for water supply with a pump (not shown) is provided. Communication connection is established. A float (not shown) is disposed in the water tank 10, and water is replenished when the water level falls below a certain level by a float crank mechanism (not shown).

  The water tank 10 is placed on the upper surface of the kiln 1 so that the rear side wall of the kiln 1 and the rear wall of the water tank 10 coincide with each other, and the water tank 10 is fixedly attached to the kiln 1 with fasteners 13 such as bolts and nuts. Yes. A front side portion of the upper surface opening of the kiln 1 that is not covered with the water tank 10 is a fuel inlet port, and a lid 14 is detachably provided at the fuel inlet port so that the fuel inlet port can be opened and closed.

  Perforations are provided in the upper left and right outer walls of the water chamber 3 and the lower portions of the left and right side walls of the water tank 10, and the perforations at positions corresponding to the upper and lower sides are connected in a watertight manner by water supply pipes 15. Reference numeral 16 denotes a water tank lid.

Next, the operation will be described. First, the lid for lid 14 is opened, ignition brazing and the like are inserted from the fuel charging slot and ignited. As shown in FIG. 3, the fuel inlet port is closed, and a plurality of logs 17 cut into a short length are inserted into the wood insertion pipe 9. It is preferable to use the raw wood 17 that is generally cut to a diameter of about 30 cm and a length of about 30 cm. When a blower (not shown) provided at the air intake port is driven and air is fed into the air ejection pipe 5 from the air intake ports 6 and 6, air is ejected from the air ejection hole (not shown), and the combustion chamber Air convects in 2 in a spiral. The water in the water chamber 3 is heated by the combustion of the raw wood 17. The water in the water chamber 3 rises in temperature, and the water having a higher water temperature rises to the upper part in the water chamber 3 and is sent into the water tank 10 through the water supply pipe 15. Among the high-temperature water 36 introduced into the water tank 10, one having a high water temperature is located in the upper part of the water tank 10. The high-temperature hot water 36 that stays in the upper part due to high temperature is supplied from the circulation port 12 to the circulation pipe for water supply by driving a pump (not shown) interposed in the circulation pipe 18 that is open to the circulation port provided in the upper part of the water tank 10. The water deprived of heat and sent to the circulation port 18 is fed back to the circulation port 4 from the return circulation pipe 18. Exhaust gas in the combustion chamber 2 is discharged from the chimney 11 to the outside. The short cut raw wood 17 inserted into the wood insertion pipe 9 is dropped and supplied into the combustion chamber 2 and burned and ashed. In the raw wood 17 cut into a plurality of short lengths in the wood insertion pipe 9, the amount of the ashed combustion chamber 2 descends and is supplied to the combustion chamber 2. The plurality of logs 17 cut into a plurality of short lengths are supported in an inclined state by the wood insertion pipe 9 and are sequentially supplied to the combustion chamber 2 by dropping from the lower side of the wood insertion pipe 9. When the raw wood 17 supplied into the combustion chamber 2 is ashed, the ashed wood 17 is moved down to the combustion chamber 2 by its own weight, and is newly supplied to the combustion chamber 2 as wood fuel.
Since the wood 17 is inclined by the wood insertion pipe 9 so as to enter the combustion chamber 2, the supply of new wood fuel, which is organic fuel lost by ashing, to the combustion chamber 2 is supplied to the raw wood 17. Since it is automatically performed by dropping into the combustion chamber 2 due to its own weight, there is an effect that labor for supplying fuel is unnecessary. Further, the wood fuel is supported by the wood insertion pipe 9, oxygen is sent in the direction of the chimney 11 by the air ejection pipe 5, and exhaust is performed by the chimney 11. Therefore, the flame in the combustion chamber 2 follows the air flow to the chimney 11. Because it does not face toward the wood insertion pipe 9 side, there is no fire from the outside opening of the wood insertion pipe 9, and there is no backflow of flame from the wood insertion pipe 9 even if there is no manager. There is an effect that it is safe without being born.

  A second embodiment shown in FIGS. 4 and 5 will be described. 4 and 5, the kiln 19 includes a bottomed cylindrical combustion chamber 20 having an open upper surface and a shed 21 provided in communication with the combustion chamber 20. The shed 21 is provided with a shed cover 22 that can be opened and closed. The peripheral side wall of the bottomed cylindrical combustion chamber 20 excluding the connection portion of the spout 21 and the vicinity of the spout connection portion is formed in a double wall structure. The double wall structure portion is a water chamber 23 in which water as a coolant circulates. The circulating fluid is not limited to water but may be an antifreeze. A circulation port 24 through which water is fed back is connected to the water chamber 23 through an opening, and a return circulation pipe 31 is connected to the circulation port 24. An air ejection pipe 25 is disposed in the combustion chamber 20 along the inner peripheral wall surface in a flattened arc shape. An air ejection hole (not shown) is formed in the air ejection pipe 25 so that air is supplied in a vortex shape within the combustion chamber 20. Both ends of the air ejection pipe 25 open to a single wall portion in the vicinity of the throat connection portion of the peripheral side wall, and form air intake ports 26 and 26. The air intake ports 26 and 26 are provided with a blower (not shown) for efficiently sending air into the air ejection pipe 25. The guide plate 27 is tilted from the front side wall of the shed 21 to the bottom side wall, and is guided so that wood fuel falling from a wood insertion pipe 28 described later is sent to an appropriate position in the kiln 19. . The front side wall of the shed 21 is formed as an inclined surface that inclines backward from the midway portion in the height direction, and the wood insertion pipe 28 is connected to the inclined surface so as to communicate with the combustion chamber 20. Specifically, the wood insertion pipe 28 is integrally attached to the inclined surface of the kiln 19 so that the axial extension line of the wood insertion pipe 28 has an acute angle with respect to the bottom surface of the kiln 19. The water tank 29 is formed in a bottomed cylindrical shape having the same diameter as that of the kiln 19 whose upper surface is open, and a chimney 30 is disposed on the inner side in the vertical direction. The chimney 30 is provided such that the lower end is opened on the bottom surface of the water tank 29 and the upper end is located above the water tank 29. The water tank 29 has a circulation port for sending the high-temperature water 36 in the water tank 29 to a greenhouse provided outside, and is connected to a circulation pipe 31 for water supply in which a pump (not shown) is interposed. Yes. A water tank 29 is polymerized and fixedly attached to the kiln 1. Perforations are provided in the upper part of the outer wall of the water chamber 23 and the lower part of the side wall of the water tank 29, and the perforations at positions corresponding to the upper and lower sides are connected in a watertight manner by the water supply pipe 32. 33 is a water tank lid.

A third embodiment shown in FIG. 6 will be described. The difference from the second embodiment is that the heat exchanger 34 is disposed slightly below the water line of the water tank 29. A water supply pipe 35 is connected to the heat exchanger 34 so that tap water can be supplied to the heat exchanger 34 from the outside of the water tank 29. Further, the heat exchanger 34 is connected in communication with the delivery pipe 37, and the tap water supplied from the water supply pipe 35 exchanges heat with the high-temperature water 36 in the water tank 29 in the heat exchanger 34 to become hot water. It is sent out to the delivery pipe 37 and can be used in a bathroom or kitchen. The delivery pipe 37 is provided with a valve and a pump.
On the other hand, the hot water sent into the pipeline of the greenhouse by driving a pump interposed in the circulation pipe 31 for water supply connected to the water tank 29 through the opening is radiated in the greenhouse to lower the temperature, and is supplied from the circulation port 24. Return to the water chamber 23 of the bottom cylindrical combustion chamber 20. The low-temperature water that has returned to the water chamber 23 exchanges heat with the bottomed cylindrical combustion chamber 20 in the water chamber 23 to become high-temperature water, rises in the water chamber 23, passes through the water supply pipe 32, and enters the water tank 29. It is sent. The high-temperature water 36 sent into the water tank 29 is sent out to a greenhouse pipe line provided outside through a circulation pipe 31 provided with a pump connected to the water tank 29 and circulated.
Example 3 has an effect that water heated by one device can be sent out to both a pipeline for greenhouse heating and hot water for daily use. Further, by providing a plurality of heat exchangers in the water tank 29, it is possible to provide a plurality of hot water supply paths in one hot water reactor, and there is an effect that the thermal energy heated by the raw wood can be used effectively.

It is a right view of the hot water reactor for woody fuel. Example 1 It is the sectional view on the AA line of FIG. 1 which removed the lid for sheds. Example 1 It is the BB sectional drawing of FIG. 2 which shows the use condition which closed the shed with the lid for sheds. Example 1 It is a right view of the hot water reactor for woody fuel. (Example 2) It is CC sectional view taken on the line of FIG. 4 which removed the lid for sheds. (Example 2) It is the perspective view which removed the cover of the water tank. (Example 3)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,19 Kiln 2,20 Combustion chamber 3,23 Water chamber 9,28 Wood insertion pipe 10,29 Water tank 11,30 Chimney 15,32 Pipe 17 Raw wood 18,31 Circulation pipe 21 Mouth 34 Heat exchanger 36 Hot water

Claims (2)

A wood-fueled hot water reactor consisting of a kiln and a water tank,
The kiln is provided with a wood combustion chamber equipped with a fuel inlet port and air supply means, a double wall structure portion is provided on the peripheral side wall, the double wall portion is a water chamber,
The water tank is formed in a bottomed body with a chimney penetrating in the height direction,
The air heated in the combustion chamber of the kiln can be exhausted from the chimney, and the lower end of the chimney is opened to the combustion chamber of the kiln,
The water chamber and the water tank are connected with a pipe so that water in the water chamber can be sent to the water tank,
An opening communication connection is made to the circulation pipe for return to the water chamber,
In the hot water reactor for wood fuel, in which a circulating pipe for water supply is connected to the water tank through the opening,
A wood insertion pipe for inserting the raw wood into the kiln is connected in an open communication connection so that the raw wood cut into short lengths can be smoothly fed into the combustion chamber by its own weight, and the wood insertion pipe is an extension of the axis of the wood insertion pipe. A hot water reactor for wood fuel, characterized in that the wire is provided in the kiln so as to be inclined with an acute angle with respect to the bottom surface of the kiln. A wood-fueled hot water reactor consisting of a kiln and a water tank,
The kiln is provided with a wood combustion chamber provided with a fuel charging port and air supply means, a double wall structure portion is provided on a peripheral side wall of the wood combustion chamber, the double wall portion is formed as a water chamber,
The water tank is formed in a bottomed body with a chimney penetrating in the height direction,
The air heated in the combustion chamber of the kiln can be exhausted from the chimney, and the lower end of the chimney is opened to the combustion chamber of the kiln,
The water chamber and the water tank are connected with a pipe so that water in the water chamber can be sent to the water tank,
An opening communication connection is made to the circulation pipe for return to the water chamber,
In the hot water reactor for wood fuel formed by connecting the circulation pipe for water supply to the water tank through the opening communication to form the first pipe line,
A wood insertion pipe for inserting the raw wood into the kiln is connected in an open communication connection so that the raw wood cut into short lengths can be smoothly fed into the combustion chamber by its own weight, and the wood insertion pipe is an extension of the axis of the wood insertion pipe. Provided in the kiln so that the wire is inclined with an acute angle to the bottom of the kiln,
A heat exchanger is disposed at a position slightly below the water line of the water tank, both ends of the heat exchanger are water-tightly opened on opposing circumferential walls of the water tank, and water fed from one of the openings is the water A hot water reactor for wood fuel, which is formed so as to be heated by exchanging heat with high-temperature water in a water tank so as to be sent out from the other opening.

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