JP4420733B2 - Snow melting processing equipment - Google Patents

Description

  The present invention relates to a snow melting processing apparatus for processing a solid snow mass deposited on a roadside belt portion of a road in a cold region with a lot of snowfall.

  For example, in a cold district, such as Sapporo, the annual snowfall often exceeds 5m in an urban area with a population of 1.8 million. Under these circumstances, countermeasures against snow have become a major issue indispensable for cold regions such as Hokkaido.

  In particular, snow that accumulates on the road is temporarily deposited on the road curb every year during the snowfall season. For this reason, it is in the situation where the traffic function and living environment of winter are deteriorated remarkably.

Conventionally known snow melting treatment methods include a method of melting snow on the spot as represented by road heating and roof heating, and collecting snow in a treatment tank provided in one place. There is a method of melting snow. Many patents have been filed as snowmelt treatment countermeasures so far, but the current situation is that they are not practically used mainly due to factors such as high cost. Currently, as a method of melting snow on the spot, a method of melting snow using, for example, water flowing in sewage as domestic wastewater heat is known (Patent Document 1).
Japanese Patent Laid-Open No. 3-63308

  By the way, the conventional method of melting snow using the water flowing in the sewage requires a large facility for pumping up water, and it is necessary to invest in this facility, which is difficult. At the same time, there was a problem that the piping was clogged and maintenance management was difficult.

  Therefore, the sewerage covered in the familiar living space has a phenomenon that even if snow accumulates, it does not accumulate around the manhole. This is because warm sewage flows even in winter, and this steam gushes out onto the road surface. The temperature of the air in this sewer does not change much throughout the year, and generally has a temperature of about 10 to 15 ° C. even in winter.

  According to the present invention, the snow melting treatment is performed using air having a temperature of about 10 to 15 ° C. in the sewer.

In order to achieve the problem to be solved by the present invention, a snow melting treatment apparatus according to the present invention is configured such that a part of a sewage pipe installed in the basement of a road is connected to a blowing means provided on the ground via a first pipe. The air is blown from the sewage pipe to the air blowing means provided on the ground, and the air blowing means has a hollow structure disposed in the lower portion of the side band of the road in the longitudinal direction of the road via the second pipe. It is connected to a transport pipe which is a flexible perforated thin tube inserted into the curb blast duct, and further, a highly breathable joint is provided between the curbs.

  In the snow melting processing apparatus of the present invention, in the snow melting processing apparatus, the air blowing means is incorporated in a natural refrigerant heat source heat pump device including a steam generator and a spray device, and the natural refrigerant heat source heat pump device is installed on the ground. It is preferable.

In the snow melting processing apparatus of the present invention, the transportation pipe inserted into the blower duct by the natural refrigerant heat source heat pump device has a high pressure and a high pressure to maintain a high temperature and high humidity state in order to efficiently melt a solid snow mass. It is characterized by supplying steam at high wind speed.

The snow melting processing device of the present invention is provided with a control device for controlling the natural refrigerant heat source heat pump device, and the control device includes a snowfall sensor, a ground temperature sensor, an outside air temperature sensor, and a height detection means for detecting the height of snow. The natural refrigerant heat source heat pump device is configured to operate when any one of the sensors is connected and a preset value is set in advance. Further, a system abnormality is detected by a pressure sensor in the transport pipe for remote centralized monitoring. It is characterized in that remote centralized monitoring is performed through communication equipment and telephone lines.

  As can be understood from the description of the means for solving the problems as described above, according to the present invention, air having a temperature of about 10 to 15 ° C. in the sewage pipe installed in the basement of the road is blown. By sucking up by means, and flowing this air through the air duct which is a curb of a hollow structure arranged in the longitudinal direction of the road at the lower part of the road side belt, the snow piled up on the road side belt is melted. Snow melting treatment can be performed. In addition, by providing a natural refrigerant heat source heat pump device, the temperature of the steam can be raised to around 90 ° C., which is effective because it further melts snow.

  Therefore, it is possible to achieve a smooth snow removal environment for an aging society, to realize snow removal measures that cannot be achieved such as densely populated houses, and to reduce expenditures such as snow removal costs by removing snow and reducing the amount of snow removal.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, a road 1 includes a roadway 3, and a sidewalk 7 is provided on both sides of the roadway 3 (one side in FIG. 1) via a curb 5 having a hollow structure as a side band. A manhole 9 is installed at an appropriate position, for example, at the center of the roadway 3, and a sewer 11 extending in the longitudinal direction of the roadway 3 is installed immediately below the manhole 9. One end of the first pipe 13 is connected to the upper part of the side surface of the sewer 11 at an appropriate position, and the other end of the first pipe 13 is connected to a compressor 15 as a blower. The compressor 15 is built in, for example, a CO ₂ refrigerant heat source heat pump device 17 as a natural refrigerant heat source heat pump device.

This CO ₂ refrigerant heat source heat pump device 17 is already generally known, and is frequently used recently. The principle of the CO ₂ refrigerant heat source heat pump device 17 is a structure in which an evaporator, a compressor, a condenser and an expansion valve are connected by a single pipe, and absorbs heat energy from the natural atmosphere. It is a mechanism that repeats the cycle of moving indoors and using them for heating. Moreover, in the CO ₂ refrigerant heat source heat pump device 17, for example, high-temperature water of hot water of 80 to 90 ° C. is made, and a steam generator and a spray device that should turn this high-temperature water into steam are added to the CO ₂ refrigerant heat source heat pump device 17. Is provided. Further, it provided in the middle of the pipe water supply valve for supplying water to the CO ₂ refrigerant source heat pump device 17 is connected to the CO ₂ refrigerant source heat pump device 17. Therefore, the details of the structure of the CO ₂ refrigerant heat source heat pump device 17 are omitted.

A blower duct 19 is disposed in the longitudinal direction of the roadway 3 in the curb 5 having the hollow structure. In the air duct 19, a transport pipe 23A and a transport pipe 23B are provided in the longitudinal direction of the roadway 3. The transport pipe 23A and the transport pipe 23B are connected to the CO ₂ refrigerant heat source via the second pipe 21. It is connected to the heat pump device 17. The drainage painting surface 25 on the air duct 19 is formed of a drainage layer by high-performance painting. The air duct 19 is connected with the same inclination as that of the existing road curb 5 arrangement, and, for example, steam blown out from the transport pipes 23A and 23B has a highly breathable joint material 27 packed between the curb 5 having a hollow structure. It is connected so that it may inject through the road surface.

  As shown in FIGS. 2 and 3, the transport pipe 23A and the transport pipe 23B inserted into the air duct 19 are composed of, for example, highly flexible and heat-resistant pipe types. A plurality of discharge ports 29 are perforated for steam leakage on the upper surface of the transport pipe 23B. Further, a drainage hole 31 is provided in the lower part of the blower duct 19, the transport pipe 23A and the transport pipe 23B. A drain hole 33 is connected between the lower surface of the air duct 19 and the curb 5.

Controller 35 which allowed to control the CO ₂ refrigerant source heat pump device 17 is provided on the left side of the CO ₂ refrigerant source heat pump device 17. A pole 37 is erected on the sidewalk 7, and a CCD camera 39 as a height detection means for detecting the height of the snow that has accumulated is provided on the top of the pole 37. An outside air temperature sensor 41 is provided at the lower part. A rain sensor 43 is provided on the upper pole 37 where the CCD camera 39 is provided on the pole 37, and a ground temperature sensor 45 is provided on a part of the upper surface of the sidewalk 5.

  As shown in FIG. 3, a pressure sensor 47 is provided in a part of the transport pipes 23A and 23B so that the pressure in the transport pipes 21 and 23 can be detected. Further, a central monitoring communication device 51 is connected to the control device 35 via a telephone line 49, for example.

  The control device 35 includes a CPU 53 as shown in FIG. The CPU 53 is connected with an input device 55 such as a keyboard for inputting data and a display device 57 such as a CRT for displaying data. The CPU 47 is connected with, for example, a CCD camera 39, an outside air temperature sensor 41, a rainfall sensor 43, a ground temperature sensor 45, an outside air temperature sensor 47, and a pressure sensor 47 as the height detection sensor.

The CPU 53 is connected with a height setting value / memory 59, an outside air temperature setting value / memory 61, a rainfall amount setting value / memory 63 and a ground temperature setting value / memory 65, and a comparison judgment device 67. Further, an on / off switch 69 is connected. The on / off switch 69 is turned on and off to selectively activate and deactivate the CO ₂ refrigerant heat source heat pump device 17.

With the above configuration, for example, in the winter, when snow falls and accumulates on the roadway 3, the accumulated snow is removed on the curb 5 having a hollow structure on the side of the roadway 3. When snow is deposited on the curb 5 having the hollow structure, the compressor 15 is operated, and air having a temperature of, for example, 10 to 15 ° C. in the sewer 11 is supplied to the CO ₂ refrigerant heat source via the first pipe 13. The high-temperature water of hot water of 80 to 90 ° C. sent to the heat pump device 17 and made by the CO ₂ refrigerant heat source heat pump device 17 becomes steam in the steam generation device, passes through the spray device, and further blows through the second pipe 21. The air is sent to the transport pipe 23A and the transport pipe 23B in the duct 19. The steam blown to the transport pipe 23A and the transport pipe 23B in the blower duct 19 is jetted from the high ventilation joint material 27 by jetting the steam upward from a plurality of discharge ports 29 formed on the upper surface. The snow on the curb 5 having a hollow structure melts and flows through the drainage paint surface 25 and is drained into the roadbed by underground penetration. Similarly, the water that has melted into the blower duct 19 is drained into the roadbed through the drainage hole 33 by underground penetration.

The CPU 53 of the control device 35 is connected with, for example, a CCD camera 39, an outside air temperature sensor 41, a rain sensor 43, and a ground temperature sensor 45 as height detection sensors. Is detected. The height setting value / memory 59, outside air temperature setting value / memory 61, rainfall amount setting value / memory 63, ground temperature setting value / memory 65 have, for example, setting values of 30 cm, −1 ° C., 0 ° C. and 2 ° C. Since it is set, the actual snow cover height, outside air temperature, rainfall and ground temperature are compared with the set values 30 cm, −1 ° C., 0 ° C. and 2 ° C., respectively. When the value becomes larger than the set values 30 cm, −1 ° C., 0 ° C., and 2 ° C., the CO ₂ refrigerant heat source heat pump device 17 is selectively activated or deactivated by turning on / off the on / off switch 61.

For example, from November to December, since it is not so cold and the amount of snow is small, it is possible to respond by operating only the compressor 15 without operating the CO ₂ refrigerant heat source heat pump device 17. However, from January to March, it will be very cold and the amount of snow will be large, so the CO ₂ refrigerant heat source heat pump device 17 is operated, for example, the temperature of the air is raised to 30 to 90 ° C. and converted into steam. can do. As a result, the snow on the curb 5 having a hollow structure melts and flows on the painted surface to penetrate underground and drain to the roadbed. Similarly, water that has melted into the air duct 19 can be permeated underground through the drain holes 33 provided in the lower part of the air duct 19 and drained to the roadbed.

  Therefore, it is possible to achieve a smooth snow removal environment for an aging society, to realize snow removal measures that cannot be achieved such as densely populated houses, and to reduce expenditures such as snow removal costs by removing snow and reducing the amount of snow removal.

  Furthermore, when a system abnormality is detected by the transport pipe pressure sensor 47, it is sent to the remote centralized monitoring communication device 51 via the telephone line 49 and can be monitored in the remote centralized location.

  In addition, this invention is not limited to embodiment mentioned above, It can implement in another aspect by making an appropriate change. In the embodiment described above, the example of the CCD camera 39 has been described as the height detection means, but it is also possible to use an infrared sensor. In this case, it is better to detect when the snow is cut for a few seconds using a timer.

It is the perspective view which showed a part of road provided with the snow melting processing apparatus of this invention. It is a partial enlarged front view of a ventilation duct. It is sectional drawing of a ventilation duct. It is a block diagram of a control apparatus.

Explanation of symbols

1 Road 3 Roadway 5 Curbstone 7 Sidewalk 9 Manhole 11 Sewer 13 First Pipe 15 Compressor (Blower)
17 CO ₂ refrigerant heat source heat pump device (natural refrigerant heat source heat pump device)
19 Air duct 21 Second pipe 23A, 23B Transport pipe 25 Drainage paint surface 27 Highly breathable joint material 29 Discharge port 31 Drainage hole 33 Drainage hole 35 Controller 37 Pole 39 CCD camera (height detection means)
41 Outside air temperature sensor 43 Rainfall sensor 45 Ground temperature sensor 47 Pressure sensor 49 Telephone line 51 Communication device 53 CPU
55 Input Device 57 Display Device 59 Height Setting Value / Memory 61 Outside Air Temperature Setting Value / Memory 63 Rainfall Setting Value / Memory 65 Ground Temperature Setting Value / Memory 67 Comparison Judging Device

Claims (4)

A part of the sewage pipe installed in the basement of the road is connected to the blowing means provided on the ground via the first pipe, and blows air from the sewage pipe to the blowing means provided on the ground,
This blower means is a flexible perforated tube inserted into the inside of a hollow duct of a curb with a hollow structure disposed in the longitudinal direction of the road below the side band of the road via the second pipe. A snow melting treatment apparatus connected to a pipe and further provided with a highly breathable joint between the curbs.   2. The snow melting process according to claim 1, wherein the air blowing means is incorporated in a natural refrigerant heat source heat pump device including a steam generator and a spray device, and the natural refrigerant heat source heat pump device is installed on the ground. apparatus. The natural refrigerant heat source heat pump device is used to transport steam at high pressure and high wind speed so that the transport pipe inserted into the air duct can maintain a high temperature and high humidity state in order to efficiently melt a solid snow mass. The snow melting processing apparatus according to claim 2 . A control device for controlling the natural refrigerant heat source heat pump device is provided. The control device is connected to a snowfall sensor, a ground temperature sensor, an outside air temperature sensor, and a height detection means for detecting the height of snow, and each sensor. The natural refrigerant heat source heat pump device is configured to operate when any one of the above reaches a preset value, and further, a system abnormality is detected by a pressure sensor in the transport pipe, via a communication device and a telephone line for remote centralized monitoring. 4. The snow melting processing apparatus according to claim 2, wherein remote snow concentration monitoring is performed.

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