JPH0881929A - Spraying machine for anti-freezing and snow-melting agent - Google Patents

Abstract

PURPOSE: To reduce cost by a method wherein open-air temperature, road surface temperature and snowfall condition are detected, and a spraying machine is automatically controlled, based on preset data for spraying modes. CONSTITUTION: In order to supply snow melting agent or the like to a spraying machine stably from an underground tank 20, the tank 20 is replenished with solution supplied from an underground tank 10. Agitating nozzles 12 and 25 are provided to the tank 10 and 20, and separation and sedimentation of the snow-melting agent or the like are prevented therewith while the quantity of spraying from spraying nozzles 41a-41n is adjusted with a pump 31 and a spraying quantity regulating valve 35. Then, concrete blocks 50a-50n, each incorporating a spray unit pipe, wound round with an anti-freezing heating wire 44, and nozzles 41a-41n, are laid on the surface of a road. A control panel unit 30 analyzes signals from a snowfall condition sensor 71, an open-air temperature sensor 72 and a road surface temperature sensor 73 for judgment, based on preset data, and controls an electric-operated spraying valve 33. As the structure is simple, cost for equipment can be reduced while saving of man power can be materialized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention prevents the freezing of the road surface or melts the snowy road surface by spraying an antifreezing agent or a solution of a snow-melting agent on the snow and snow on the road surface in a snowy cold region or a mountainous area. The present invention relates to an installation type road surface anti-icing agent and a snow melting agent spraying device.

[0002]

2. Description of the Related Art Conventionally, as for the anti-freezing / snow melting on the road surface, a so-called installation method of installing the anti-freezing / snow melting on a certain place and concentrating the anti-freezing / snow melting on the spot, or a device for spraying a snow-melting agent on a vehicle etc. A moving spraying method is known in which a snow-melting agent is mounted and a snow-melting agent is sprayed to a required place, and various apparatuses and devices associated with these methods have been proposed.

The so-called installation method is a road surface snow melting device that directly heats the road surface by a heat source. A heat pipe is buried just below the target road surface and a fluid such as hot water for heat exchange or antifreeze is circulated in the heat pipe. By doing so, the road surface is heated, or a heating wire is embedded in the road surface to directly heat the road surface to raise the road surface temperature, and to prevent freezing and snow melting on the road surface. Further, as another example of the device in the installation method, a road surface snow melting device that directly sprays hot water or the like on the road surface, a hot water sprinkling pipe is buried just below the road surface like the heat pipe, and hot water or the like is sent into the pipe. Hot water is sprayed directly onto the road surface from the water spray holes provided in the pipe to prevent freezing and snow melting on the road surface.

[0004]

The heating of the road surface by the buried heat pipe or the heating wire is performed until the road surface temperature is raised by circulating hot water or the like through the heat pipe of the heat source because the heat capacity of the paved road surface is large. Heat transfer requires time, it is difficult to achieve a quick snow melting effect due to changes in meteorological conditions, and the construction and operation and maintenance costs of these devices are high. . In addition, in the installation type device that directly sprays hot water or the like on the road surface to melt snow, the snow melting effect cannot be achieved without continuous water spraying, and therefore a large amount of hot water needs to be supplied. Equipment must be installed, and there is a risk of re-freezing the road surface depending on the road surface temperature.

On the other hand, a so-called moving spraying system, in which a snow-melting agent spraying device is mounted on a vehicle or the like and sprays the snow-melting agent to a required location, can be easily sprayed, but the snow-melting effect does not continue with the spread of the snow-melting agent. . In addition, it is difficult to quickly respond to road surface freezing such as at night or early morning, and it is necessary to constantly monitor the road surface condition in order to carry out a prompt response, which poses a problem such as a large human burden.

Therefore, the present invention has been made in view of the above circumstances. By measuring and detecting the outside air temperature, the road surface temperature, and the snowfall condition, and automatically spraying a solution such as a road surface antifreezing agent and a snow melting agent, To provide a road surface anti-icing agent and a snow-melting agent spraying device that enables quick road surface anti-icing and labor saving of anti-icing work, and has low construction cost and maintenance cost and is easy to handle. is there.

[0007]

The features of the means for solving the problems of the present invention are that storage means for storing a solution in which an antifreezing agent or a snow melting agent is dissolved, and a solution such as a snow melting agent from the storage means. The solution is supplied to the spraying nozzle by pressure, the spraying means is equipped with a spraying nozzle that sprays a solution such as a snow-melting agent onto the road surface, and the sensor detects and measures the snowfall condition, the outside air temperature, and the road surface temperature. Measurement detection means,
The automatic spraying control means controls the operation of the spraying pump or the like based on the data in which the electric signal from the measurement detecting means is preset and input as climate / temperature data.

[0008] Specifically, the storage means includes a ground tank for storing a solution such as a snow melting agent, a level gauge having a switch for instructing an operation / stop of a convection pump or the like depending on the remaining amount of the solution, and the above ground. It is configured to include a stirring nozzle for preventing precipitation of a solution such as a snow melting agent in the tank.

Further, the storage means includes an underground tank for storing a solution such as a snow melting agent, a level gauge having a switch for instructing the operation / stop of the solution supply valve according to the remaining amount of the solution, and the snow melting in the underground tank. And a stirring nozzle for preventing precipitation of a solution of the agent or the like.

Further, the solution supply means and the automatic spraying control means include a stirring nozzle for preventing precipitation of a solution such as a snow melting agent in the above-ground tank and an underground tank, and a spraying of the solution such as the snow melting agent on a road surface. In order to do so, a spray pump that pressure-feeds the solution, an electric valve for spraying that adjusts the spraying operation of the spray nozzle, a solution supply valve that sends the solution in the above-ground tank to an underground tank, and from the underground tank to the above-ground tank. A return water amount adjusting valve for returning the solution, a spraying amount adjusting valve for adjusting a spraying amount of the spraying nozzle, and an automatic control circuit for controlling these valve bodies are configured.

The spraying means comprises a spraying nozzle unit embedded in a concrete block molded into a standard size together with a pipe in which a heating wire is wound around a spiral line,
A flexible pipe for connecting the spray nozzle units is used.

Further, the measurement detection means constantly detects the presence or absence of snowfall, the latest weather condition regarding the outside air temperature and the road surface temperature, etc. by the sensor, and detects it as an electric signal,
It is configured to perform the operation control of the electric motor valve for spraying based on the operation setting data such as the meteorological condition which is the target of spraying operation which is set and input in advance.

Further, the measurement detecting means is equipped with an operation control circuit capable of setting the start and end times of the spraying operation.

[0014]

The spraying device for the road surface anti-icing agent and the snow melting agent according to the present invention having the above-described structure operates as follows.

The above-ground tank (10) which is a storage means is underground from the above-ground tank (10) so that a solution such as a snow melting agent is stably supplied to the spraying device from the underground tank (20) which is a storage means. The solution is supplied to the tank (20).

By disposing stirring nozzles (12) and (25) in the aboveground tank (10) and the underground tank (20), separation and precipitation of a solution such as a snow melting agent is prevented and made uniform, and a spray pump ( 31) and the spray amount adjusting valve (35) allow the spray nozzle (41a
Stable spraying discharge amount adjustment from ~ 41n) is performed. Furthermore, the solution in the spray pipe is transferred to the underground tank (20) by the return water amount adjustment valve (33) that returns the solution from the underground tank (20) to the aboveground tank (10) and, if necessary, the electric motor valve (26) for drainage. It has a drainage function for discharging.

The spraying means is a concrete block (50a-41n) containing a heating wire (44) wound around the spraying unit piping (45a-45n) and a pipe having a function of preventing freezing of the solution in the spraying unit piping (45a-45n). 50n), the concrete block
By connecting a plurality of (50a to 50n), the installation length of the spraying means for spraying on the road surface can be arbitrarily set.

Further, the measuring and detecting means and the automatic spraying controlling means use the respective sensors for measuring and detecting the road surface temperature, the outside air temperature and the presence / absence of snowfall, and the road surface temperature, the outside air temperature and the meteorological condition such as the presence / absence of snowfall are converted into electric signals. Measurement and detection is performed, and the automatic control of the operation of the spraying device is performed based on the preset spraying operation data, and the start / stop time of the spraying device is set in advance by the daily change amount of the number of passing vehicles and the outside air temperature. Since an arbitrary setting can be made based on actual data such as, etc., intensive spraying operation is performed.

The solution such as the snow-melting agent sprayed on the road surface from the spray nozzles (41a to 41n) as the spraying means is spread by the vehicle passing through the road surface in the traveling direction of the vehicle, so that the solution is spread over a wider area. The solution is diffused and dispersed in the road extension direction.

[0020]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 illustrates an embodiment of a road surface anti-freezing agent and snow melting agent spraying apparatus of the present invention. The road surface anti-freezing agent and snow melting agent spreading apparatus is a ground tank (10) which is a ground storage means, It is composed of an underground tank (20) which is an underground storage means, a solution supply means, an automatic spraying control means, a spraying means, and a measurement detecting means.

The above-ground tank (10), which is the above-ground storage means shown in FIG. 1, has a stirring convection pump (11) and a stirring nozzle (1
2), a replenishing motor-operated valve (14), a level gauge (13) and a water inlet with inspection lid (15).
(10) is the control panel (5) installed upright on the ground sidewalk of this device.
It is fixedly arranged on the inner frame material.

The above-ground tank (10) is a reserve tank for replenishing the underground tank (20), which is the main tank in the underground storage means shown in FIG. 2, with a solution such as a snow-melting agent, and has an anticorrosive effect. It is made of a metal material such as stainless steel or a synthetic resin material such as glass fiber, and the top part of the tank can be visually inspected for the condition of the inside of the tank, and has an inspection lid to replenish the solution such as a snow melting agent. A water supply port (15) is provided.

An upper end portion and a lower end portion of a side surface of the ground tank (10) are connected to a space formed between the above-ground tank (10) and a control panel unit (30) which is an automatic spraying control means described later. It is equipped with a level gauge (13). This level gauge (13) is made of transparent material such as glass or resin having a hollow structure, and the amount of solution remaining in the ground tank (10) can be visually checked by vertically moving the float in the level gauge (13). The amount of residual solution in the tank can be confirmed by checking. Further, proximity switches are provided at both ends of the upper limit and the lower limit of the level gauge (13), and the amount of the residual solution in the tank is directly visually confirmed, and the control panel unit ( 30) The empty / full lamp provided on the display is turned on, and the operator can check the empty / full of the tank from outside the device.

A convection convection pump (11) for preventing the precipitation of the solution remaining in the above-ground tank (10) is provided near the water supply port (15) with the inspection lid. The stirring convection pump (11) stirs the residual solution in the ground tank (10) by discharging the solution sucked from the suction pipe (16) in the ground tank (10) from the stirring nozzle (12). We are trying to prevent precipitation. In addition, this stirring convection pump (1
1) is capable of automatic / manual switching operation, but when the remaining amount of the solution such as snow melting agent in the ground tank (10) is empty during automatic operation, the level gauge (13) lower limit proximity switch Will be activated and will be in the state of automatic stop. This is due to a mechanism for preventing a failure caused by the idling operation of the stirring convection pump (11). Incidentally, during the automatic operation other than the operation of the lower limit proximity switch, the stirring convection pump (11) always continues to operate to prevent precipitation of the residual solution in the ground tank (10). .

A replenishment motor-operated valve (14) is arranged near the lower edge of the front surface of the aboveground tank (10) to replenish the solution from the aboveground tank (10) to the underground tank (20), and always to the aboveground The tank (20) is being operated to keep it full. This supplementary motor-operated valve (14) is operated and controlled in accordance with the operation of the photoelectric switch attached to the level gauge (21) provided in the below-mentioned underground tank (20), and its operation control structure is the ground tank (10). The operation control mechanism is similar to the proximity switch attached to the level gauge (13) attached to the.

The underground storage means comprises an underground tank (20) shown in FIGS. 1 and 2, a water supply pipe (22), and a level gauge.
(21), water supply pipe (24), stirring nozzle (25) and outer layer (2
9) and the underground tank (20) is formed of a material having durability and anticorrosion effect, specifically, a metal material such as stainless steel or a synthetic resin material such as glass fiber. . The outer peripheral wall of this underground tank (20) is equipped with an outer laminate (29) formed of concrete in the shape of an outer box, and a gap between the underground tank (20) and the outer laminate (29). It is buried under the road surface in a shape in which a heat insulating material such as glass wool, which blocks the influence of temperature change directly from the soil, is inserted into the space that occurs in the road.

The water supply pipe (22) is a water supply pipe for replenishing the underground tank (20) with a solution such as a snow melting agent from the outside of the apparatus, and is made of a material such as stainless steel having durability and rust prevention effect. Is formed from a pipe. This water inlet pipe (22)
Is arranged close to the side surface of the aboveground tank (10) in the control panel (5), and one end thereof is formed so as to be directly inserted into the underground tank (20). In addition, the replenishment motor-operated valve (14) operates at a predetermined position of the water supply pipe (22), and the ground tank (10)
A pipe is connected when the solution is replenished to the underground tank (20). Further, a plug plug (23) is inserted into the water inlet of the water inlet pipe (22) except when water is being supplied to prevent foreign matter such as dust from entering.

The level gauge (21) includes a float guide (21c) forming a hollow cylindrical shape, and the float guide (21c).
The float (21b) is a hollow sphere that is slidably accommodated inside the (21c) and follows the rising and falling of the residual solution in the underground tank (20), and the outer peripheral top of the float (21b). The vertically fixed float rod (21a) and this float rod (21a)
a) The float rod guide (21d) that holds the vertical sliding guide, and the uppermost and lower limits of this float rod guide (21d) have the highest liquid level rising point in the underground tank (20). And a photoelectric switch attached to a portion corresponding to the lowest point.

The method for detecting the residual solution amount in the underground tank (20) by the level gauge (21) configured as described above is performed by the float corresponding to the highest and lowest liquid level points in the underground tank (20). The photoelectric switch of the rod guide (21d) stops in front of the photoelectric switch due to the rise and fall of the liquid level of the photoelectric switch sensing part attached to the float rod (21a), and the photoelectric switch is cut off to make electrical connection. It is designed to emit a signal. This electric signal is the ground tank (10)
Similarly to the level gauge (13) equipped in the control panel unit (30), the underground tank empty / full lamp arranged in the display of the control panel unit (30) is turned on, and the refueling motorized valve (1) for the aboveground tank (10) is
It also controls 4).

Reference numerals (24) and (25) denote a water supply pipe and a stirring nozzle, and the water supply pipe in the above-mentioned ground tank (10).
Similar to (16) and the stirring nozzle (12), the solution precipitation of the snow-melting agent in the underground tank (20) is prevented. This water pipe
(24) and the stirring nozzle (25) are activated by the operation of the spray pump (31) described later.

The solution supply means is a nozzle (4) for spraying a solution such as a snow-melting agent stored in the underground tank (20) which is a main tank.
1a to 41n), which is a unit that sends pressure to the spray pump (31).
A spraying electric valve (32), a return water amount adjusting valve (33),
Agitating water volume control valve (34) and spray volume control valve (35) in the underground tank
And a drainage motor operated valve (26).

The spray pump (31) is a control panel unit (3
Deployed at the bottom of (0), aboveground tanks (10) and underground tanks
Except when the (20) is empty at the same time, the operating state is always maintained and the solution is pumped to all the pipes through which the solution circulates. This spray pump (31) can be operated by either automatic or manual operation, but normally the selection is made so that it will be in the automatic operation state.

The spray motor valve (32) is arranged in the center of the lower part of the aboveground tank (10) fixed to the control panel (5) frame, and is controlled so as to operate in conjunction with the spray pump (31). The operation of the spray motor valve (32) starts spraying the solution from the spray nozzles (41a to 41n).

The return water amount adjusting valve (33) is located in the vicinity of the spray pump (31), and is a valve for adjusting the flow rate of a solution such as a snow melting agent when returning it to the aboveground tank (10). This return water amount adjustment valve (33) also allows the spray nozzles (41a ~
Although it is possible to adjust the discharge amount from 41n), originally, this return water amount adjustment valve (33) is mainly arranged to return the solution into the pump for the impeller protection of the spray pump (31). There is.

The agitating water amount adjusting valve (34) in the underground tank is arranged on the pipe in parallel with the spraying electric valve (32),
This is a valve for returning the solution pumped up from the underground tank (20) by the spray pump (31) to the underground tank (20) again and adjusting the flow rate thereof. When this valve is opened, the discharge amount of the spray nozzles (41a to 41n) decreases and the flow rate returning to the underground tank (20) increases.

The spray amount adjusting valve (35) is provided with the spray nozzle (41a).
~ 41n) to adjust the amount of spraying to the road surface, and the spray pump (3) on the same pipe as the spray motorized valve (32).
It is located on the 1) side. In addition, the drainage electric valve (26) is arranged at the bottom of the spray pipe, and the spray pump (3
When 1) is not operating and the solution such as the snow melting agent is not sprayed, the solution remaining in the spray pipe is removed from the underground tank (2
It is an electric valve that discharges to 0).

The spraying means is specifically shown in FIGS. 3 to 5.
Spray nozzles (41a to 41n), flexible hoses (43a to 43n), heating wires (44), and spray unit piping (4
5a to 45n) and a concrete block (50a to 50n), and in this embodiment, the length is 99.5c.
m, width 30 cm, and height 20 cm. A rectangular box-shaped concrete block (50a to 50n) with outer dimensions sandwiching a nozzle base (46a to 46n), which will be described later, with spray unit piping (45a to
45n) is molded in a buried state. A heating wire (44) is spirally wound around the outer periphery of the spray unit pipe (45a to 45n) to prevent the solution in the pipe from freezing by heating the spray unit pipe (45a to 45n). Has been done.

The spraying means shown in FIG. 3 is configured as described above, and therefore each concrete block is
The manufacturing of (50a to 50n) is done in a factory, and the curing period of concrete at the construction site is omitted, so that the construction period can be shortened. 9 and 10 are plan views of a construction example in which the spraying means is constructed, and FIG. 9 is a construction example in which a spraying device is installed in a transverse direction of a road, and a road surface with a small slope from the center line to the shoulder, It is an illustration of a construction example suitable for a road surface having a relatively large number of passing vehicles. Also,
FIG. 10 shows a construction example in which a spraying device is installed at the top of a slope in the longitudinal direction of the road, and is a construction example suitable for a road surface with a large slope from the center line to the shoulder and a road surface with relatively few passing vehicles. By installing the spraying device in this way, the spraying area can be wide and the residence time of the solution on the construction road surface can be long.

Table 1 below shows the results of actual measurement of the antifreezing / snow melting effect in the examples in which the concrete blocks (50a-50n) incorporating the spray nozzles (41a-41n) etc. were installed in the transverse direction of the road. This device operates to spray a solution such as a snow-melting agent under an outside air temperature of 0 ° C. or less or under conditions of a frozen road surface, and anti-freezing and snow-melting effects are recognized on a wide range of road surfaces.

[0040]

[Table 1]

As shown in FIG. 1, the measuring and detecting means includes a snowfall condition sensor (71) for melting snow by electric heating and measuring and detecting it as a difference in electric resistance of water, and an outside air temperature sensor (71) for detecting outside air temperature. 72) and a road surface temperature sensor (73) for detecting the temperature of the road surface.The snowfall condition sensor (71) and the outside air temperature sensor (72) are perpendicular to the road-side top end of the control panel (5). It is locked to each pipe rising in the direction. Further, the road surface temperature sensor (73) is installed in the vicinity of the road shoulder on the road surface, which is less susceptible to the influence of temperature and external damage.

FIG. 6 is a flow chart illustrating the flow of a solution such as a snow melting agent in the apparatus of the present embodiment described above. The solution is pumped to the spray nozzles (41a to 41n) by the spray pump (31) and the underground tank (20).
The operation of the stirring nozzle (25) for preventing the precipitation of the residual solution such as the snow-melting agent therein is similarly performed by the spray pump (31).

FIG. 8 is an external front view of a control panel unit (30) incorporating automatic spraying control means, which is located near the ground tank (10) shown in FIG. 1 and above the spraying pump (31). It is arranged. This control panel unit (30) is a snowfall condition sensor (71), the outside air temperature sensor (72), and the signal sent from each sensor of the road surface temperature sensor (73), snowfall that has been input in advance. Based on the presence / absence, the outside air temperature, and the road surface temperature data, the microcomputer installed inside the control panel unit (30) analyzes and makes a decision to control the operation of the spray motor valve (32).

On the front of the exterior of this control panel unit (30),
Operation switches for performing various display functions and various setting functions in this device are arranged. Reference numeral (A) is the main power switch of the device, and reference numeral (B) is the heating wire (44).
Automatic / manual switch (B) in automatic monitoring equipment
Is. Reference numerals (C), (I), (J) and (K) are operation indicating lamps, and the operation indicating lamp (I) is the main power switch (A).
The operation indicator lamp (I) continues to be lit when the device is in operation, and the operation indicator lamps (J) and (K) are connected to the heating wire (4).
When the automatic monitoring device in 4) is in the automatic (K) or manual (J) state, the operation indicator lamps (J) and (K) are displayed. The operation indicator lamp (C) is automatically monitored by the automatic monitoring device for the heating wire (44).
There is no distinction between (K) and manual (J) and the lights are always on during operation.

Reference numeral (D) indicates a road surface temperature sensor (7
3) is a digital indicator that displays the temperature when the road surface temperature is being measured.This digital indicator (D) uses the switch for switching between the road surface temperature and the outside air temperature on the terminal board (H), which will be described later. It is set to display the outside air temperature measured by the temperature sensor (72), or to display the error code at the time of error of the microcomputer incorporated in the control panel unit (30).

The symbols (E) and (F) are the heating wires.
Upper limit temperature setting switch (E) in the automatic monitoring device of (44)
And the lower limit temperature setting switch (F), it is possible to set in any range from the upper limit + 50 ℃ to the lower limit -30 ℃.

Further, the upper limit temperature setting switch (E) and the lower limit temperature setting switch (F) are set by the switch for switching between the road surface temperature and the outside air temperature on the terminal board (H) described later, and the automatic spraying start time and It is possible to input and set the end time. That is, by selecting the operation time setting changeover switch on the terminal board (H), the upper limit temperature setting switch (E) sets the operation start time, and the lower limit temperature setting switch (F) sets the operation end time. It can be done.

Reference numeral (G) is a switch for setting the length of the load time of the heating wire (44) in the automatic monitoring device for the heating wire (44), and the prerequisite for the operation of this switch is the heating wire (44). (44) Automatic monitoring device automatic / manual switch
(B) is in the automatic state. The code
(H) is a terminal board for connecting input / output with a power source, each sensor, each relay, etc., and a switch for changing the road surface temperature, the outside air temperature, etc. is arranged. Further, the control panel unit (30) has a built-in snow melting control panel having a control circuit for performing manual / automatic control of the spray pump (31).

FIG. 7 shows the control panel unit described above.
It is a flow chart showing the flow of an operation instruction to each motor-operated valve by a microcomputer incorporated in (30). The outside air temperature shown here means the lower limit temperature and is the outside air temperature set value set by the lower limit temperature setting switch (F).

As for the time setting, after selecting the operation time setting changeover switch on the terminal board (H), set the operation start time with the upper limit temperature setting switch (E) and operate with the lower limit temperature setting switch (F). Set the end time.

[0051]

Industrial Applicability The road surface antifreezing agent and snow melting agent spraying apparatus of the present invention have the following effects. In comparison with the conventional road surface anti-icing device, it is possible to supply a device with a low facility cost due to its simple structure, and unmanned operation is possible except for solution replenishment by consuming a solution such as a snow melting agent. It is possible to supply equipment that is easy to handle and maintain during operation.

In addition, the outside air temperature, the road surface temperature, and weather conditions such as the presence or absence of snowfall are measured and detected as electric signals, and the spraying operation is automatically controlled based on preset spraying operation environment setting data. The operation time can be arbitrarily set in consideration of the actual data regarding the daily change in the amount of water, and the solution of the antifreezing agent and the snow-melting agent can be focused and automatically sprayed. It is possible to reduce the cost of spraying the solution of the antifreezing agent and the snow-melting agent and to greatly reduce the work of the antifreezing operation.

Further, the vehicle passing through to spread the solution on the road surface further promotes the diffusion of the solution in the vehicle traveling direction, and antifreezing and snow melting effects can be expected in a wider road extension direction.

Furthermore, since the spraying means can be standardized for molding into a block in which the spraying nozzle, the spraying unit piping, the heating wire, etc. are integrated, mass production in the factory becomes possible, which shortens the construction period and construction cost. Etc. can be expected to be reduced.

[0055]

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a function and a configuration of an embodiment in which a spray nozzle according to a spray device for a road surface anti-icing agent and a snow melting agent according to the present invention is installed in a road crossing direction.

FIG. 2 is a cross-sectional view illustrating piping from an underground tank to a spray nozzle according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram illustrating a construction example of a concrete block in which a spraying unit pipe, a heating wire, and a spraying nozzle are buried according to an embodiment of the present invention.

FIG. 4 is a plan view illustrating a connection state of the concrete blocks according to FIG.

5 is a side sectional view illustrating a spray nozzle and piping according to FIG.

FIG. 6 is an explanatory diagram illustrating a flow of a solution such as a snow melting agent according to an example of the present invention.

FIG. 7 is a flowchart relating to operation instructions of the control panel unit according to the embodiment of the present invention.

FIG. 8 is an external front view of the control panel unit according to the embodiment of the present invention.

FIG. 9 is an explanatory view for explaining an example in which a concrete block incorporating a spraying device and the like is installed in a transverse direction of a road surface and a diffusion state of a solution such as a snow-melting agent sprayed on the road surface.

FIG. 10 is an explanatory diagram illustrating an example in which a concrete block incorporating a spraying device and the like is installed in a longitudinal direction of a road surface and a diffusion state of a solution such as a snow-melting agent sprayed on the road surface.

[Explanation of symbols]

 10 Aboveground Tank 11 Convection Pump 12 Stirrer Nozzle 13 Level Gauge 14 Supply Motorized Valve 15 Water Supply Port with Inspection Lid 20 Underground Tank 21 Level Gauge 21a Float Rod 21b Float 22 Water Supply Pipe 24 Water Supply Pipe 25 Stirring Nozzle 26 Drainage Motorized Valve 28 Underground tank inspection manhole 30 Control panel unit 31 Spraying pump 32 Electric motor valve for spraying 33 Return water amount adjusting valve 34 Agitating water amount adjusting valve in underground tank 35 Spraying amount adjusting valve 41a-n Spraying nozzle 43a-n Flexible hose 44 Heating wire 45a ~ N Scattering unit piping 50a ~ n Concrete block

Claims (7)

[Claims] 1. A storage device for storing a solution in which an antifreezing agent or a snow-melting agent is dissolved, in a device for spraying a solution such as a snow-melting agent for preventing freezing of a road surface or melting snow accumulated on the road surface, and the storage means. Solution supply means for pressure-sending a solution such as a snow-melting agent to the spraying nozzle, a spraying means including a spraying nozzle for spraying a solution such as a snow-melting agent on the road surface, and snowfall conditions, outside air temperature and road surface temperature It comprises a measurement detection means for performing measurement detection by a sensor, and an automatic spraying control means for controlling the operation of a spraying pump or the like based on data in which electric signals from the measurement detecting means are set and input in advance as climate / temperature data. A spraying device for a road surface anti-icing agent and a snow melting agent. 2. The storage means includes a ground tank for storing a solution such as a snow-melting agent, and a level gauge having a switch for instructing activation / stop of a convection pump or the like depending on the remaining amount of the solution.
The road surface anti-icing agent and snow-melting agent spraying device according to claim 1, comprising a stirring nozzle for preventing precipitation of a solution such as the snow-melting agent in the above-ground tank. 3. The storage means is an underground tank for storing a solution such as a snow melting agent, and an operation of a solution supply valve depending on the remaining amount of the solution.
The road surface antifreezing agent and snow melting agent according to claim 1, characterized by comprising a level gauge having a switch for giving a stop instruction, and a stirring nozzle for preventing precipitation of a solution such as a snow melting agent in the underground tank. Agent spraying device. 4. The solution supply means and the automatic spraying control means, the stirring nozzle for preventing the precipitation of the solution such as the snow melting agent in the above-ground tank and the underground tank, and the spraying of the solution such as the snow melting agent on the road surface. In order to do so, a spray pump that pressure-feeds the solution, an electric valve for spraying that adjusts the spraying operation of the spray nozzle, a solution supply valve that sends the solution in the above-ground tank to an underground tank, and from the underground tank to the above-ground tank. The road surface antifreezing agent according to claim 1, further comprising a return valve for returning the solution, a spray amount adjusting valve for adjusting a spray amount of the spray nozzle, and an automatic control circuit for controlling these valve bodies. A device for spraying snow melting agents. 5. The spraying means includes a spraying nozzle unit embedded in a concrete block molded into a standard size together with a pipe in which a heating wire is wound around a spiral strip, and a flexible pipe connecting the spraying nozzle unit. The road surface antifreezing agent and snow-melting agent spraying apparatus according to claim 1, characterized in that 6. The meteorological detecting means constantly detects the latest meteorological condition regarding the snowfall condition, the outside air temperature and the road surface temperature by the sensor and detects it as an electric signal, and the meteorological condition targeted for the spraying operation set in advance. The spraying device for a road surface antifreezing agent and a snow-melting agent according to claim 1, wherein operation control of the electric motor for spraying is performed based on operation setting data such as. 7. The spraying of a road surface anti-icing agent and a snow melting agent according to claim 1, wherein the measurement detecting means is equipped with an operation control circuit capable of setting start and end times of spraying operation. apparatus.