JP2707306B2 - Snow melting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is to operate a burner accurately even in a cold area having a low outside air temperature and melt a large amount of snow in a short time.
The present invention relates to a snow melting apparatus capable of draining hot water.

[Prior Art] Conventionally, a hot water storage tank is provided at the center, and a water storage tank shallower than the hot water storage tank is provided on both sides thereof at the bottom of a main body having an open upper portion so as to be in communication with each other. At the position, hollow endless tubes with one end connected to the air supply tube and the other end connected to the exhaust tube were laid at many intervals, and the heat absorbing material was filled in the upper part of the main body with the boundary between the rostol tube. The other end of the sprinkler pipe arranged in the upper part of the snow melting chamber and the upper part of the snow melting chamber is formed in the hot water tank via an oil feed pump. A large amount of snow injected into the snow-melting room provided in the main body can be melted in a short time by the direct heating action of the burner's burning hot air and the spraying action of the hot water stored in the hot water storage tank. A possible snow melting apparatus is known before the present application, for example, as described in Japanese Patent Publication No. 52-38653. .

[Problems to be Solved by the Invention] By the way, in this type of conventional snow melting apparatus, the site where the snow melting apparatus is used is particularly in a cold region, and the outside air temperature is naturally below freezing. The combustion air supplied to the burner also has an extremely low temperature below freezing similarly to the above.

Therefore, even after the start of ignition of the burner, there is a risk that unburned oil may be generated or combustion failure may occur. For this reason, it has been difficult to maintain an acceptable or good combustion state over a long period of time in which the expected amount of combustion cannot be obtained, and as a result, there has been a problem that the snow melting ability is also reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to directly heat a blower tube or a hot-air generating chamber by a combustion flame, and to solve the problem. Even in a cold area where the snow is cold and the outside air temperature is extremely low, the combustion air supplied to the burner is turned into high-temperature hot air by the heat exchange action with the combustion flame to prevent incomplete combustion of the burner. To promote combustion and maintain a good combustion state for a long time,
It is an object of the present invention to provide a snow melting apparatus which has improved snow melting ability.

[Means for Solving the Problems] In order to achieve the above object, in a snow melting apparatus of the present invention, a first invention is provided, wherein a snow melting chamber is provided in an upper stage and a burner is provided in a middle stage in a main body having an open upper portion. The combustion chamber that is faced is arranged in a three-dimensional manner so that the water collecting chambers communicate with each other at the lower stage, and a watering body is arranged at the upper part of the snow melting chamber. A plurality of blower tubes are disposed at the boundary position of, and one side of the blower tube is not provided with a blower, and the other side is provided with a snow melting device connected to an air supply port of a burner. Inside the body whose upper part is open, a snow melting chamber is arranged in the upper part, a combustion chamber facing the burner in the middle part, and a water collecting chamber is arranged in a three-dimensional manner so as to communicate with the water collecting part in the lower part. In the case where a water spray body is provided, a heat shield plate is provided around the inner periphery of the combustion chamber at an appropriate interval to shield the water from the combustion chamber. A hot air generating chamber is formed between the hot air generating chamber and a plate, and an outside air inlet is connected to one side of the warm air generating chamber, and a hot air inlet is connected to the other side of the hot air generating chamber via an air inlet and a blower pipe. Are provided as snow melting devices.

In addition, it is effective to arrange an air supply adjusting device in an air duct near the air inlet of the burner in order to adjust the amount of air supplied to the burner and the temperature of the supplied air.

In addition, if a blower is connected to the outside air inlet provided in the warm air generation chamber, a desired amount of high-temperature combustion air is always supplied to the burner, and stable combustion can be continued for a long period of time.

[Operation] When it is desired to melt a large amount of snow in a short time by using the snow melting device according to the present invention, first, in FIG. 1 to FIG. The generated combustion air is supplied to a burner from an air supply port through a blower pipe, and at the same time, fuel is also supplied.

Then, the fuel is burned under the supply of combustion air, and the combustion hot air is ejected from the combustion chamber into the snow-melting chamber through the space between the blower tubes. Therefore, if a large amount of snow is thrown into the snow melting chamber, the snow is quickly melted by the direct heating action with the burning hot air blazing in the snow melting chamber while heating the blower pipe from the combustion chamber, and drops in the combustion chamber. The water is stored in the water collection room. Then, the snowmelt water dropped and stored in the collecting chamber is heated and exchanged by direct contact action with the burning hot air that flares while dripping in the combustion chamber, and is heated to a certain degree of hot water and at the same time into the collecting chamber. While the water is being stored, the water is heated by the heating action of the combustion hot air, and becomes hot water. Therefore, when the snowmelt water stored in the water collection chamber as described above reaches a predetermined water level, the high-temperature snowmelt water is sprinkled to perform a snowmelt action.

By the way, during the snow-melting operation, since the place heated most in the combustion chamber is the blower pipe, the combustion air flowing in the blower pipe is heated during the flow and is supplied as high-temperature hot air. Since the air is blown to the burner through the vent, even if snow melting work is performed in cold regions, the high temperature of the combustion air supplied to the burner prevents incomplete combustion and prevents combustion. By further encouraging, a complete combustion state is maintained for a long period of time, and an efficient snow melting operation can be performed.

Also, in the snow melting apparatus of the second invention shown in FIGS. 6 and 7, a heat shield plate is provided at an appropriate interval on the inner periphery of the combustion chamber, and the combustion chamber and the heat shield plate are provided. A hot air generator is formed between the hot air generator and an outside air inlet on one side of the warm air generating chamber, and a hot air inlet connected to the air supply port of the burner and a blower pipe on the other side. The hot air generation chamber is heated to a high temperature by the combustion hot air generated by the combustion start of the burner, and the combustion air flowing through the hot air generation chamber is quickly heated to a high temperature and supplied from the hot air inlet. The burner can be continuously supplied with air through the mouth, and as a result, without causing the burner to be in a poor combustion state even in a cold region,
Stable combustion is carried out for a long period of time, and this can melt a large amount of snow in a short time by the flaming action of the stable combustion hot air.

In the first invention and the second invention, when the air supply adjusting device is disposed in the air duct near the air inlet of the burner, the air supply amount of the combustion air and the air supply amount of the combustion air are controlled by the operation of the air supply adjusting device. According to the second invention, the outside air introduced into the hot air generating chamber in the second invention may be adjusted so that the burner air can be supplied to the burner in an amount and temperature suitable for performing stable combustion by adjusting the supply air temperature appropriately. When a blower is connected to the mouth, even if the burner does not have a built-in blower, a predetermined amount of combustion air is forcibly pumped into the hot air generation chamber, and the high temperature obtained by the heat exchange action with the combustion hot air is obtained. The combustion air is supplied to the burner to completely burn the fuel.

Embodiment An embodiment will be described with reference to the drawings. In FIGS. 1 to 3, reference numeral 1 denotes a main body of a snow melting apparatus having an open upper part, and the main body 1 has a main body in which a melter is provided. The snow chamber 2 is three-dimensionally arranged so that the combustion chamber 3 with the burner 5 facing the middle stage and the water collection chamber 4 with the lower stage communicate with each other.

At the boundary position between the snow-melting chamber 2 and the combustion chamber 3, a plurality of air ducts 6 are horizontally arranged at intervals and a large number of roasters 7 are arranged on the air ducts 6 at intervals. And the snow melting chamber 2 and the combustion chamber 3 are divided. The proximal end and the distal end of the plurality of blower tubes 6 are connected to merging pipes 8 and 9, respectively, and an inlet opening to the merging pipe 8 on the base end side.
A discharge side of a blower 11 is connected to 10, and a base end of a blower pipe 13 is connected to a discharge port 12 opened to a merging pipe 9 on a distal end side. The tip of the blower tube 13 is connected to the air inlet 14 of the burner 5.
The combustion air blown by the blower 11 is supplied to the burner 5 to burn the fuel, and the generated combustion hot air is ejected into the combustion chamber 3. The air is blown toward the inside of the snow melting chamber 2 through the space between the roaster 7 and is supplied to the burner 5 while the combustion air flowing through the blower pipe 6 is heated by the heat exchange action. The above-described burner 5 may be of a type in which a blower (not shown) is stored or a type in which a blower is not stored.

Reference numeral 15 denotes an air supply adjusting device provided in the blower pipe 13 near the air supply port 14 of the burner 5. An example of the air supply adjusting device 15 is shown in FIGS. 4 and 5. That is, the air supply adjusting device 15 is provided with a blower tube 13 having a large number of supply / exhaust windows 16 opened on the peripheral surface, and a fitting tube 18 fitted on one side with the blower tube 13, and the other side is provided with the blower tube 13. A large-diameter cover cylinder 19 is integrally formed with a slide adjustment cylinder 17 which is integrally formed. The slide adjustment cylinder 17 is slid as shown in FIG. When the port 16 is closed, the entire amount of combustion air flowing through the blower pipe 13 is allowed to flow toward the air supply port 14 as it is, and the slide adjusting cylinder 17 is slid in the direction shown in FIG. When a large number of air supply / exhaust ports 16 are opened, a part of the combustion air flowing through the air supply pipe 13 is exhausted to the outside through the air supply / exhaust port 16, and at the same time, a part of the cold outside air is supplied into the air supply pipe 13. Remind me. Therefore, the amount of air supplied to the burner 5 and the temperature of the supplied air can be adjusted by the above-described operation.

Numeral 20 denotes a plurality of sprinklers horizontally arranged above the snow melting chamber 2, and the base end side of the sprinklers 20 is connected to one merging pipe 21, respectively. 21 is connected to the end of a water pipe 22 having a pump 23 and a strainer provided on the suction side of the pump 23.
24 is immersed in one side of the water collecting chamber 4 and a pump 23
The snowmelt water in the water collecting chamber 4 pumped by the above operation is supplied to the sprinkler body 20 having a stop-like shape through the confluence pipe 21 and is substantially evenly distributed from the many water sprinkling holes 25 drilled on the surface of the sprinkler body 20. Sprinkle into the snow melting room 2 for the quantity. The water collecting chamber 4 for storing snowmelt water is formed so that its depth is gradually increased from one side to the other, and the deepest water collecting chamber 4 is provided so as to project outside the main body 1. I have. A filter 26 is vertically provided in the deepest water collecting chamber 4 so as to partition the inside of the water collecting chamber 4, and an overflow pipe 27 is provided on one side of the upper part.
Outside to make the internal water level constant, the snowmelt water is discharged to the outside of the main body 1 in order. A drain outlet 28 is provided at the bottom of the water collecting chamber 4. The drain port 28 is opened and closed by an appropriate valve, and discharges sediment and the like settled in the water collecting chamber 4 to the outside of the main body 1 together with water after the snow melting operation. 29 is
A large number of endothermic materials filled on the rostrum 7.

30 is an intake provided at the top of the water collecting chamber 4 at the deepest position,
Reference numeral 31 denotes a hopper substantially similar in shape to the main body 1 inserted into the snow melting chamber 2 from the upper open side of the main body 1, and a peripheral wall plate of the main body 1.
The lower end is connected to the inside of the combustion chamber 3 and the exhaust port 32 at the upper end is provided around a part or the entire circumference between the first wall 1a and the peripheral wall plate 31a of the hopper 31. Therefore, even when the snow melting chamber 2 is full of the snow A, a part of the combustion hot air of the burner 5 injected into the combustion chamber 3 is exhausted to the outside through the exhaust passage 33 through the exhaust passage 33. Then, the peripheral wall plate 31a of the hopper 31 is heated when it is effective, so that the snow A is melted, and a function of gradually falling down the snow melting chamber 2 is performed.

FIG. 6 and FIG. 7 show a snow melting apparatus used to carry out the second invention, in which the inside of the combustion chamber 3 installed in the first invention is used. A heat shield plate 35 is provided around the periphery at an appropriate interval to form a warm air generation chamber 34 between the combustion chamber 3 and the heat shield plate 35,
An outside air inlet 36 is provided on one side of the warm air generating chamber 34, and a warm air inlet 38 connected to the air supply port 14 of the burner 5 through a blower tube 37 is provided on the other side. The combustion air introduced into the warm air generating chamber 34 from the outside air inlet 36 by the air supply function is converted into high-temperature warm air by heat exchange with the combustion hot air of the burner 5, and the resulting high-temperature warm air is generated. Blower tube 37 from hot air inlet 38
The burner 5 is supplied to the burner 5 from the air supply port 14 via the air supply port, so that the fuel can be completely burned even in a cold region where the outside air temperature is low. In particular, the burner 5 does not have a built-in blower. In the case of a model, the discharge side of the blower 39 may be connected to the outside air inlet 36 to force the outside air into the warm air generation chamber 34 under pressure. In addition, the heating of the combustion air is performed by the warm air generating chamber 34 provided on the inner periphery of the combustion chamber 3.
, The plurality of water passage pipes 40 can be arranged horizontally at intervals at the boundary position between the snow melting chamber 2 and the combustion chamber 3, and this is the end side of the plurality of water passage pipes 40. Was connected to the merging pipe 42 of the water sprinkling body 20 through the merging pipe 41, and the distal end side of the water pipe 22 having the pump 23 was connected to the base end of the water pipe 40 via the merging pipe 43. Structures other than the above are the same as those of the first invention shown in FIGS. 1 to 5. Therefore, by arranging a plurality of water pipes 40 at the boundary between the snow melting chamber 2 and the combustion chamber 3, the snow melting water B supplied into the water pipe 40 after being pumped up by the pump 32 is drawn. The temperature is raised by the heat exchange action with the burning hot air, and the obtained high-temperature snow-melting water B is scattered from the water spray body 20 onto the snow A without interruption, so that the snow-melting effect can be further improved.

[Effects of the Invention] Since the present invention is configured as described above,
The following effects are obtained.

Simultaneously with the start of combustion of the burner, the combustion hot air is raised from the combustion chamber by heating the blower tube and raised in the snow-melting chamber, making direct contact with the injected snow and quickly melting the snow, and dropping the snow-melting water into the collecting chamber. The temperature of the obtained snowmelt water was raised by the heating action of the burning hot air that flares up during the dropping process and the water storage process in the water collecting chamber, and was then sprayed on the snow from the water spray body. Even if a large amount of snow is thrown into the furnace, the snow melts in a short time due to the direct heat exchange action with the hot combustion air, the spray action of high- If possible, arrange multiple blowers at the boundary between the snow melting chamber and the combustion chamber, and connect one side of the blower to the blower and the other side to the burner inlet. The combustion air blown into the air duct To quickly increase the temperature to produce high-temperature hot air and supply it to the burner to promote combustion.Thus, even in cold regions where the outside air temperature is low, fuel can be stably burned and the snow melting effect can be further enhanced. it can. In addition, in the present invention, a heat shield plate is provided around the inner periphery of the combustion chamber to form a warm air generation chamber between the combustion chamber and the heat shield plate, and at one side of the warm air generation chamber. Is provided with an outside air inlet, and on the other side a hot air inlet connected to the burner's air inlet and a blower pipe, so the surroundings of the combustion chamber, which is in the highest temperature state, are hot air generation chambers. A large amount of high-temperature combustion air can be quickly obtained and supplied to the burner to further stabilize combustion over a long period of time, thereby promoting the snow melting effect.

In addition, since the air supply control device is provided in the blower pipe near the air supply port of the burner, it is possible to freely adjust the air supply amount and the air supply temperature of the combustion air supplied to the burner, When a blower is connected to the outside air inlet provided in the hot air generation chamber, even if the burner does not have a built-in suction blower, a fixed amount of high-temperature combustion air is supplied to the burner to stabilize combustion. Can be achieved.

[Brief description of the drawings]

1 to 3 show a snow melting apparatus according to the first invention, wherein FIG. 1 is a longitudinal sectional front view and FIG. 2 is FIG.
FIG. 3 is a cross-sectional plan view in the direction of the arrow I line, FIG. 3 is a cross-sectional plan view in the direction of the arrow line II-II in FIG. 1, FIG. FIGS. 6 and 7 show the snow melting apparatus according to the second invention, with a partially cutaway front view during the air supply / exhaust action. FIG. 6 is a vertical front view, and FIG.
FIG. 6 is a cross-sectional plan view taken along the line III-III of FIG. DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Snow melting room, 3 ... Burning room, 4 ... Water collecting room, 5 ...
Burner, 6 ... Blower tube, 11 ... Blower, 14 ... Air supply port, 15 ... Air supply control device, 20 ... Sprayer, 34 ... Hot air generator, 35 ... Heat shield plate, 36 ... Outside air inlet, 37 ... Blower tube, 38 ... hot air inlet, 39
…Blower

Claims (4)

(57) [Claims] In a main body having an open upper part, a snow melting chamber is provided in an upper part, a combustion chamber having a burner facing in a middle part, and a water collecting chamber is provided in a lower part in a three-dimensional manner so as to communicate with each other. In a structure in which a watering body is provided at the upper part of the snow melting chamber, a plurality of blower tubes are provided at a boundary position between the snow melting room and the combustion chamber, and one side of the blower tube is provided to a blower, and The other side is a snow melting device connected to the burner's air inlet. 2. A main body having an open upper portion, a snow melting chamber at an upper stage, a combustion chamber facing a burner at a middle stage, and a water collecting chamber at a lower stage are sequentially arranged in a three-dimensional manner so as to communicate with each other. A water spray body is disposed above the snow melting chamber. A heat shield plate is provided at an appropriate interval on the inner periphery of the combustion chamber, and a hot air generating chamber is provided between the combustion chamber and the heat shield plate. And a hot-air generating port provided on one side of the hot-air generating chamber and a hot-air introducing port connected to an air supply port of a burner through a blower pipe on the other side. 3. An air supply adjusting device capable of supplying a part of the outside air to an air supply pipe near an air supply opening of a burner to adjust an air supply amount and an air supply temperature to the burner. Claim 1
3. The snow melting device according to claim 2. 4. The snow melting apparatus according to claim 2, wherein a blower is connected to the outside air inlet provided in the warm air generating chamber.