JP3048464U - Sprinkle freezing prevention device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Conventionally, as a device for preventing freezing, unnecessary spraying is sometimes performed so as to shorten the downtime of spraying. Excessive spraying in cold weather has many disadvantages to the pavement itself, such as hastening the temperature drop of the mixture. In addition, if the suspension time of spraying is long, freezing occurs in the pipes, especially in the spray pipes and the nozzles with constricted portions that come into contact with the outside air, and it is often necessary to interrupt the compacting machine for thawing. SOLUTION: In order to supply a heated spraying fluid to a spraying pipe, an engine cooling water pipe is connected to a heat exchanger provided immediately after the spraying tank to heat the spraying fluid.
A heat exchanger is also built in the spray pipe and an engine cooling water pipe is connected to reheat and maintain the spray fluid.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to an antifreezing device in a device for spraying water and spraying a chemical on the outer peripheral surface of a wheel of a compacting machine.

[0002]

[Prior art]

 In order to prevent the mixture material from adhering to the outer peripheral surface of the wheel of the rolling machine, it is necessary to spray water or a liquid agent as appropriate by a gravity-floating type or by pressure feeding with an electric pump or the like. The spray pipe is mainly composed of a resin hose and is connected to a pipe equipped with a spray port and a spray nozzle. In the past, there was no means to prevent freezing of fluid in piping or near nozzles when spraying was stopped during cold weather.

[0003]

[Problems to be solved by the invention]

 Conventionally, as a measure to prevent freezing, unnecessarily spraying was sometimes performed so as to reduce the downtime of spraying. Excessive spraying in cold weather has many disadvantages to the pavement itself, such as hastening the temperature drop of the mixture. If the suspension time of spraying is long, freezing occurs in the pipes, especially in the spray pipes and nozzles with constricted parts that come into contact with the outside air, and in many cases it is necessary to interrupt the compacting machine for thawing.

[0004] An object of the present invention is to obtain an antifreezing device for performing stable watering and spraying of a liquid agent even when the rolling machine is cold. Another object of the present invention is to obtain an antifreezing device at low cost without preparing a special device as a heat source. Still another object of the present invention is to obtain an anti-freezing device which is easy to maintain such as cleaning and repair.

[0005]

[Means for Solving the Problems]

 In order to supply the heated spray fluid to the spray pipe, the engine cooling water pipe is connected to the heat exchanger installed immediately after the spray tank to heat the spray fluid. A heat exchanger is also built in the spray pipe and an engine cooling water pipe is connected to reheat and keep the spray fluid warm. The spray nozzle is directly attached to the spray pipe with a built-in heat exchanger and connected to the engine cooling water pipe, and the spray nozzle is heated and kept warm by heat conduction from the pipe.

[0006]

[Embodiment of the invention]

 An embodiment of the present invention will be described with reference to FIG. In the figure, 1 is a spray fluid tank, 2 is a heat exchanger, 3 is a pump, 4 is a spray pipe, 5 is a spray nozzle, 6 is an engine, 7, 8, and 9 are spray fluid pipes, 10, 11, and 12 are spray fluid pipes. It is a heating and heat retaining pipe.

[0007] In a cold operation, the operation of the antifreezing device according to the present invention is as follows. During the operation of the spraying device, the spraying fluid passes from the tank 1 through the heat exchanger 2 and the pump filter, and is sprayed to each wheel from the nozzle 5 through the heat exchanger 2 in the spraying pipe 4. The engine cooling water is taken out of the engine 6 and returns to the engine 6 again through the heat exchanger 2 in the spray pipe 4 and the spray pipes 7 and 8. At that time, in each heat exchanger 2 in the apparatus, the spray fluid and the engine cooling water exchange heat, the spray fluid is warmed and sprayed from the spray nozzle 5 at the end of the pipe. If this device is not used, in the condition where the outside air temperature and water temperature are low (close to freezing point), freezing will occur due to the temperature drop due to the passage of the nozzle at the nozzle or the atomization even if there is no freezing in the piping. When the spray nozzle 5 is used, the spray nozzle 5 is heated and kept warm by the engine cooling water in the spray pipe, and the spray fluid is heated and kept warm in the same manner. Will not fall below.

[0008]

[Effect of the invention]

 According to the present invention, it is possible to spray water or a liquid agent onto wheels without troubles caused by freezing during a cold rolling operation in cold weather. In addition, it is possible to heat and heat water or liquid medicine without installing a new heat source.

[Brief description of the drawings]

FIG. 1 is a system diagram of an embodiment of a device for preventing watering and freezing of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spray fluid tank 2 Heat exchanger 3 Pump 4 Spray pipe 5 Spray nozzle 6 Engine 7, 8, 9 Spray fluid piping 10, 11, 12 Heating and heat keeping pipe

Claims (3)

[Utility model registration claims] In a compacting machine provided with a device for spraying water and spraying a liquid agent on the outer peripheral surface of a wheel, a spraying fluid in a pipe is used as a heat source for an engine cooling water provided in the middle of the pipe. A sprinkling and freezing prevention device characterized by being heated and kept warm by a heat exchanger. 2. The freeze prevention device according to claim 1, wherein the spray fluid in the pipe is heated and kept warm by a heat exchanger in a spray pipe using engine cooling water as a heat source. 3. The freezing prevention device according to claim 1, wherein a spray nozzle directly attached to a spray pipe containing a heat source is heated and kept warm by heat conduction.