JPH1121840A - Drain port of snow melting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain port of a snow melting machine for treating the deposited snow, which is melted by a burner and drained through the port, whereby likely hazard in association with imperfect combustion of the burner is precluded by introducing such a structure that eventual exhaust gas from imperfect combustion will never flow out from the drain port. SOLUTION: A snow melting machine has a melting chamber 3 equipped with a furnace 22 in communication with a burner 21, and the combustion gas from the burner 21 is sent into the melting chamber 3 from the exhaust hole 23 in the furnace 22, wherein the specified water level L is set so that a certain quantity of water as melted snow W is stored in the chamber 3, and the surplus portion of water W over the level L is allowed to flow out naturally from a drain port 7. In front of the drain port 7, a lid 8 is installed to seal over the specified level L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buried snow melting machine for treating snow in a snowy area, and more particularly to a drain for melting snow using a burner.

[0002]

2. Description of the Related Art As such a buried type snow melting machine using a burner for snow melting, as shown in JP-A-6-240634, a furnace body communicating with a burner is provided in a snow melting room and combustion from the burner is performed. A specified water level is set so that gas is exhausted from the flame outlet hole of the furnace body into the snow melting chamber, and a predetermined amount of snow melting water is stored in the snow melting chamber, and the snow melting water that exceeds the specified water level naturally flows out from the drain port. Are known. Then, the fuel was burned by the burner and high-temperature hot air was blown to the furnace body, the furnace body discharged hot air from the flame outlet hole, threw snow on the furnace body, melted snow, and stored a predetermined amount of the furnace body. It is immersed in snow-melting water and cooled.

[0003] A drain port is disposed at a position higher than the specified water level to store a predetermined amount of snowmelt water, and a mud chamber partitioned by a mesh plate or a mud board separating plate is disposed in front of the drain port. The upper part of the chamber is closed with a mud chamber lid. And, even if mud or sand is thrown into the snow melting chamber at the same time as snow, it accumulates in the mud chamber,
It is possible to avoid discharge into the sewer. In addition, the drain port is not blocked by the mud chamber cover with snow.

[0004]

In the above-described snow melting machine, when a large amount of snow is thrown into the snow melting chamber, the flame outlet hole of the furnace body is closed, and the exhaust passage is cut off. Can cause carbon monoxide. It is also conceivable that incomplete combustion may occur due to insufficient intake of the burner or a failure.

[0005] The drain of the snowmelt is usually connected to a common drain, and the drain is lower so that the snowmelt exceeding the specified water level flows out naturally into the drain. There is a space through which air can flow in the upper part between the drains. The specific gravity of carbon monoxide is almost the same as air, and there is a danger that carbon monoxide generated by a large amount of snowfall will fill the bathroom of the neighbor through the sewer because there is no place to go.

[0006] Even during normal combustion, carbon dioxide (CO ₂ ) is generated due to the combustion of fuel, and carbon dioxide having a specific gravity of 1.53, which is heavier than air, fills the snow-melting chamber, and flows from the space above the drain to the drain. And may enter low-lying houses through sewers.

Accordingly, an object of the present invention is to provide a drain port of a snow melting machine which prevents a danger in the event of a burner by a structure in which exhaust gas does not flow out from a drain port even if the burner causes incomplete combustion or the like. I do.

[0008]

According to the first aspect of the present invention, the drain of the snow melting machine is provided with a furnace body 22 communicating with the burner 21 in the snow melting chamber 3, and the combustion gas from the burner 21 is supplied to the furnace body 22 of the furnace. exhaust port
The specified water level L is determined so that the gas is exhausted into the snow melting chamber 3 from 23 and a predetermined amount of the snow melting water W is stored in the snow melting chamber 3.
The snowmelt water W which has flown out of the drain port 7 is provided with a drain port lid 8 that seals above a specified water level L in front of the drain port 7 in the snow melting machine that naturally flows out of the drain port 7.

The drain of the snow melting machine according to the second aspect of the present invention is provided with a number of small holes 8a below the specified water level L of the drain lid 8, and the snow melting water W exceeding the specified water level L passes through the small holes 8a. Out of the drain port 7.

[0010]

According to the first aspect of the present invention, since a drain port lid 8 is provided in front of the drain port 7 to seal the specified water level L or higher, combustion gas lighter than the snowmelt water W stored up to the specified water level L is drained. The palate 8 cannot flow out of the drain port 7.

According to the second aspect of the present invention, a number of small holes 8a are provided below the specified water level L of the drain lid 8, and the snowmelt water W exceeding the specified water level L flows out of the drain port 7 through the small holes 8a. As a result, large garbage floating in the snow melting water W does not flow out from the drain port 7.

[0012]

An embodiment of the present invention will be described below with reference to the drawings.

The snow melting machine shown in FIG. 1 is of a buried type, and has a box-shaped main body tank 1 having an upper surface opening buried under the ground E, and a burner chamber 2 divided by bulkheads 5 and 6 in the main body tank 1. A snow melting chamber 3 and a pump chamber 4 are provided in order.

A rectangular burner chamber lid 11 screwed is provided at a portion of the upper surface of the burner chamber 2 which is open to the ground E so that the burner chamber lid 11 cannot be opened or closed except during maintenance. An operation box cover that can be opened and closed at one corner of the burner room cover 11
12 is provided, and the operation box lid 12 is closed when the burner chamber lid 11
It is formed to be almost integral with the operation box when opened.
13 and the intake cylinder 14 appear.

The operation box 13 is provided with switches for the burner 21 and the submersible pump 31. The switches are used to operate the ignition and extinguishing of the burner 21 and to stop the operation of the submersible pump 31.

A pair of left and right rectangular snow melting chamber lids 15 and 16 are provided on the upper surface of the snow melting chamber 3 and open to the ground E, and the snow melting chamber lids 15 and 16 are provided between the pair of snow melting chamber lids 15 and 16. An access prevention frame 17 is provided to prevent the operator from accidentally closing or stepping on the foot.

An openable and closable rectangular pump chamber cover 18 is provided at a portion of the upper surface of the pump chamber 4 which is open to the ground E, and the pump chamber cover 18 is opened when cleaning a dust receiving net provided in the pump chamber 4. It is closed during snow melting work.

The openable and closable operation box lid 12, the snow melting chamber lids 15, 16 and the pump chamber lid 18 are locked so as to prevent unnecessary danger when not in use so that they cannot be opened and closed.

A burner 21 is provided on the partition wall 5 in the burner chamber 2, and an oil feed pipe for feeding kerosene from outside the main body tank 1 is connected to the burner 21. Is discharged from a hole provided in the partition wall 5 in the direction of the snow melting chamber 3. The other part of the partition wall 5 is sealed so that the snow in the snow melting chamber 3 and the snow melting water W do not enter the burner chamber 2.

At the center of the snow melting chamber 3, a substantially cylindrical long furnace body 22 is provided from the partition wall 5. The furnace body 22 has a volume that is approximately half of the volume of the snow melting chamber 3, is inclined downward from the horizontal direction, and The furnace body exhaust port 23 is provided on the opposite side of the furnace.

The furnace body 22 communicates with the burner 21 and
The combustion gas from the furnace is completely burned and discharged downwardly from the furnace body exhaust port 23 into the snow melting chamber 3, and heat is released to release the snow melting chamber 3.
Melts the snow that is thrown into the snow melting water 3
Raise the temperature. Exhaust gas from the furnace exhaust port 23 also circulates in the snow melting chamber 3 to melt snow and escape.

The snow melting water W in the snow melting chamber 3 is about 1 /
A prescribed water level L is determined so that the water 3 can store a required amount of water in the water sprinkling device 30, and a drain port 7 located above the prescribed water level L is provided on the wall surface of the snow melting chamber 3. The water W naturally flows out of the drain port 7.

A drain port lid 8 for closing the specified water level L or higher is provided in front of the drain port 7. The drain port lid 8 is a cubic having one side open, and its open surface is screwed to and tightly attached to the wall surface of the snow melting chamber 3 to be closed. A number of small holes 8a are provided below the specified water level L of 8, and the snowmelt water W exceeding the specified water level L flows out of the drain port 7 through the small holes 8a.

The watering device 30 includes a submersible pump 31 and a watering pipe 32.
A submersible pump 31 is provided in the pump chamber 4, and a communication hole is provided in a lower corner of the partition wall 6 between the snow melting chamber 3 and the pump chamber 4, and the snow melting water W in the snow melting chamber 3 is provided. The water is supplied to the submersible pump 31 through the trash receiving net. underwater pump
Numeral 31 supplies the snowmelt water W to the sprinkling pipe 32 or drains it from the main tank 1 when the season is over and when it is not in use.

A substantially U-shaped watering pipe 32 is provided around the upper part of the interior of the snow melting chamber 3 so as to surround the furnace body 22. The watering pipe 32 has a plurality of discharge ports and is connected to the submersible pump 31. You. A pair of watering reflector bars 33 are provided above watering pipes 32 located on both side surfaces of the furnace body 22. The sprinkling reflection plate rod 33 guides and sprays the snowmelt water W discharged from the sprinkling pipe 32 toward the furnace body 22 in the center direction of the snowmelting chamber 3.

On the pair of watering reflector rods 33, a grid-like fall prevention net 34 extending therebetween is provided.

Next, the operation together with the method of use will be described.

First, the operation box lid 12 and the snow melting chamber lids 15, 16
Is opened, and only at the beginning of the season, a predetermined amount of water up to the specified water level L is poured into the snow melting chamber 3, the submersible pump 31 is operated by the switch of the operation box 13, and then the burner 21 is ignited.

When snow is thrown into the snow melting chamber 3, snow is melted by heat radiation from the furnace body 22, exhaust from the furnace body 22 and water sprinkling from the discharge port of the water sprinkling pipe 32, and the snow melting water W exceeding the specified water level L
Naturally flows out of the drain port 7.

At this time, since the drain port lid 8 is provided in front of the drain port 7 to seal the specified water level L or higher, the combustion gas lighter than the snowmelt water W stored up to the specified water level L flows out of the drain port 7 through the drain port lid 8. Therefore, even if a large amount of snow is thrown into the snow melting chamber 3 and carbon monoxide is generated due to incomplete combustion, there is no danger that the carbon monoxide will flow out of the drain port 7. In addition, carbon dioxide (CO ₂ ) generated during normal combustion is drained. There is no danger of flowing out of the mouth 7.

Further, a number of small holes 8a are provided below the specified water level L of the drain lid 8, and the snowmelt water W exceeding the specified water level L flows out of the drain port 7 through the small holes 8a. W
Large garbage floating in the water does not flow out of the drain port 7, so that the drain port 7 is not likely to be clogged.

When the snow melting operation is completed, the burner 21 is extinguished by the switch of the operation box 13, the operation of the submersible pump 31 is stopped, and the operation box lid 12 and the snow melting chamber lids 15, 16 are closed and locked. In order to drain the water in the snow melting chamber 3 and the pump chamber 4 only when the season is over, the submersible pump 31 and the watering pipe 32
The valve is switched during this period, and the submersible pump 31 is operated to drain water.

In the above embodiment, a number of small holes 8a are provided below the specified water level L of the drain lid 8, and the snowmelt water W exceeding the specified water level L flows out of the drain port 7 through the small holes 8a. However, the lower part of the drainage lid 8 below the specified water level L may be completely opened. In this case, a separate dust net is provided between the drainage lid 8 and the drainage port 7 in order to remove large dust floating on the snowmelt water W. May be.

[0034]

According to the first aspect of the present invention, since the drain port lid is provided in front of the drain port to seal the specified water level or higher, combustion gas lighter than snowmelt water stored up to the specified water level is discharged from the drain port by the drain port lid. Even if carbon monoxide is generated due to incomplete combustion due to a large amount of snow falling into the snowmelt chamber because there is no outflow, there is no danger of flowing out of the drain, and also the danger of carbon dioxide generated during normal combustion flowing out of the drain. There is no.

According to the second aspect of the present invention, a large number of small holes are provided below the specified water level of the drain lid, and the snowmelt water exceeding the specified water level flows out of the drain port through the small holes. Large garbage floating in the river does not flow out of the drain, so there is no danger of clogging the drain.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing one embodiment of a drainage port of a snow melting machine.

FIG. 2 is a plan view of FIG. 1 from which a lid and others are removed.

FIG. 3 is a view as viewed in the direction of arrow A in FIG. 2;

FIG. 4 is a view taken in the direction of arrow B in FIG. 3;

[Description of sign]

 3 Snowmelt room 7 Drain port 8 Drain port lid 8a Small hole 21 Burner 22 Furnace body 23 Furnace body exhaust port L Specified water level W Snowmelt water

Claims (2)

[Claims] A furnace body communicating with a burner is provided in a snow melting chamber, a combustion gas from the burner is exhausted from a furnace body exhaust port of the furnace body into the snow melting chamber, and a predetermined water level is set so that a predetermined amount of snow melting water is stored in the snow melting chamber. The drain of a snow melting machine that has a drain cover that seals above the specified water level in front of the drain in a snow melting machine that naturally flows out from the drain when the snow melting water exceeds the specified water level. 2. The drain port of a snow melting machine according to claim 1, wherein a number of small holes are provided below a prescribed water level of the drain lid, and snowmelt water exceeding the prescribed water level flows out of the drain port through the small holes.