JP3204735U - Hot water washing machine - Google Patents

Abstract

Disclosed is a warm water washing machine that uses fine bubbles to simplify waste water treatment and enhance cleaning power. A hot water washing machine includes a water storage tank 2 for storing hot water generated by a boiler 1, a high pressure pump 3 for pressurizing hot water from the water storage tank 2, and a pressure regulator for adjusting the water pressure of the pressurized hot water. 4, a gas-liquid mixer 5 that mixes air with high-pressure hot water to generate fine bubbles, and a washing gun 7 with a washing nozzle 6 that jets hot water containing fine bubbles. The gas-liquid mixer 5 is supplied with hot air in the water storage tank 2 and is mixed with the hot water. [Selection] Figure 1

Description

  The present invention relates to a hot water washing machine that injects hot water to wash an object to be cleaned such as a vehicle, an electronic component, or a food-related machine.

  In a hot water washing machine, hot water is injected at a high pressure to remove dirt from automobiles and the like that are difficult to remove by water injection. Here, in order to increase the cleaning power, Patent Document 1 describes that a cleaning liquid in which a detergent is mixed with warm water is sprayed at a high pressure.

  By the way, it is known that the washing effect is enhanced when washing with water in which fine bubbles such as microbubbles are mixed. For example, Patent Document 2 describes a washing machine that can remove fine dust and dust by spraying washing water containing fine bubbles.

JP-A-10-225663 JP 2010-83342 A

  In cleaning using a detergent, it is necessary to treat waste water containing the detergent. In the cleaning using fine bubbles, the wastewater does not contain detergent, so that the wastewater can be easily treated. Therefore, in view of the above, the present invention has an object to provide a warm water washing machine that uses a fine bubble to simplify the treatment of waste water and enhance the washing power.

  The hot water washing machine of the present invention includes a water storage tank that stores hot water generated by a boiler, a high pressure pump that pressurizes hot water from the water storage tank, a pressure regulator that adjusts the water pressure of the pressurized hot water, and high pressure hot water And a gas-liquid mixer for generating fine bubbles by mixing air, and a cleaning nozzle for injecting hot water containing fine bubbles. And the air inflow port of a gas-liquid mixer is connected to a water storage tank, and the air in a water storage tank is supplied to a gas-liquid mixer.

  In the gas-liquid mixer, air is mixed with hot water flowing at high speed to generate fine bubbles. Then, warm water containing fine bubbles is sprayed from the cleaning nozzle to the object to be cleaned. At this time, air is supplied to the gas-liquid mixer from the water storage tank in which the hot water is stored. This air is high-temperature air containing water vapor.

  According to the present invention, by washing an object to be cleaned such as an automobile with warm water containing fine bubbles, a synergistic effect of washing with warm water and washing with fine bubbles is exhibited, and the cleaning power of the warm water washer can be increased.

Overall configuration of the hot water washer of the present invention

  The warm water washing machine of this embodiment is shown in FIG. The hot water washing machine adjusts the water pressure of the pressurized hot water, the boiler 1 for boiling the tap water, the water storage tank 2 for storing the hot water generated by the boiler 1, the high pressure pump 3 for pressurizing the hot water from the water storage tank 2. A pressure regulator 4, a gas-liquid mixer 5 that mixes air with high-pressure hot water to generate fine bubbles in the warm water, and a cleaning gun 7 with a cleaning nozzle 6 that injects hot water containing fine bubbles. Yes.

  A boiler 1, a water storage tank 2, a high-pressure pump 3, a pressure regulator 4, and a gas-liquid mixer 5 are built in a cabinet 10, and a cleaning gun 7 is connected to the cabinet 10 via a cleaning hose 11. A pipe 12 for supplying tap water is connected to the cabinet 10, and the tap water is supplied to the boiler 1 through a pressure reducing valve 13.

  The water storage tank 2 includes a float valve 14 in order to keep the water storage amount constant. When the water level of the water storage tank 2 is lowered, the float 15 is lowered, the valve body 16 is opened, and hot water is supplied from the boiler 1 to the water storage tank 2. The tap water can be directly supplied to the water storage tank 2 through the water supply valve 17. When the water supply valve 17 is opened, the tap water is directly stored in the water storage tank 2 and it becomes possible to inject cold water.

  The high-pressure pump 3 driven by the motor 18 increases the pressure of the hot water from the water storage tank 2 and supplies it to the pressure regulator 4. A pressure regulating valve is used as the pressure regulator 4 and is interposed between the water storage tank 2 and the cleaning gun 7. A spillage bypass pipe 19 of the pressure regulator 4 is connected to the water storage tank 2. The set pressure of the pressure regulator 4 can be adjusted so that the water discharge pressure is 1 to 5 MPa.

  The cleaning gun 7 has an open / close valve, and a cleaning nozzle 6 is attached to the tip of the cleaning gun 7. When the opening / closing valve of the cleaning gun 7 is opened, hot water is discharged from the pressure regulator 4 to the cleaning gun 7 at a set pressure. When the water pressure becomes equal to or higher than the set pressure, the pressure regulator 4 generates surplus water, and the surplus water is returned to the water storage tank 2 through the surplus water bypass pipe 19. Thereby, the water pressure is maintained at the set pressure. When the opening / closing valve of the cleaning gun 7 is closed, the water pressure in the pressure regulator 4 becomes equal to or higher than the set pressure, and the hot water from the high pressure pump 3 is returned to the water storage tank 2 through the spill water bypass pipe 19.

  The gas-liquid mixer 5 is a known mixer that generates fine bubbles such as microbubbles and nanobubbles by flowing air into high-pressure water and shearing the gas by turbulent flow in a state where the gas and liquid are mixed, It is interposed between the pressure regulator 4 and the cleaning gun 7.

  The air inlet of the gas-liquid mixer 5 is connected to the upper part of the water storage tank 2 via the suction pipe 20. Due to the suction action that occurs when hot water flows through the gas-liquid mixer 5 at high speed, the air from the water storage tank 2 is sucked into the gas-liquid mixer 5 and the air is mixed with the hot water. That is, high-temperature air containing water vapor accumulated in the upper part of the water storage tank 2 is supplied to the gas-liquid mixer 5.

  Hot water boiled by the boiler 1 is stored in a water storage tank 2, and deaeration is performed in the water storage tank 2. The hot water in the water storage tank 2 is fed into the pressure regulator 4 by driving the high-pressure pump 3. Since the opening / closing valve of the cleaning gun 7 is closed, the warm water returns to the water storage tank 2 from the pressure regulator 4 as surplus water. Further, water pressure is also applied to the gas-liquid mixer 5, and the hot water returns to the water storage tank 2 through the suction pipe 20.

  When the user operates the cleaning gun 7, the open / close valve is opened, and hot water flows from the pressure regulator 4 through the gas-liquid mixer 5 to the cleaning gun 7. When hot water passes through the gas-liquid mixer 5 at high speed, air is mixed into the hot water and fine bubbles are generated. Warm water containing fine bubbles is sprayed from the cleaning nozzle 6 of the cleaning gun 7 onto the object to be cleaned. The air flowing into the gas-liquid mixer 5 is high-temperature air containing water vapor in the water storage tank 2. For this reason, it is possible to prevent the temperature of the hot water mixed with air from being lowered and maintain the cleaning power by the hot water cleaning.

  The sprayed hot water permeates the dirt containing the oil and fat component, and the dirt is removed from the surface of the object to be cleaned. Also, dirt is removed from the surface of the object to be cleaned by fine bubbles in the warm water. Here, the temperature of the fine bubbles contained in the warm water is high. Fine bubbles with high temperature have a smaller critical radius than fine bubbles with low temperature, and cavitation is likely to occur. Due to the impact of the collapse of cavitation, the dirt is peeled off from the surface of the object to be cleaned. Also, OH radicals are generated when the fine bubbles are crushed. Since OH radicals can decompose and remove harmful organic substances adhering to the surface of the object to be cleaned, effects such as degreasing, sterilization and sterilization of the object to be cleaned can be obtained.

  In this way, it is possible to increase the cleaning power and expand the cleaning function with fine bubbles while utilizing the effect of hot water cleaning. Thereby, detergency can be improved with a little warm water, without using detergent. Therefore, the amount of water discharged can be reduced and water saving can be achieved. Moreover, since the cleaning can be performed without using a detergent, the waste water can be easily treated.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of the present invention. The gas-liquid mixer 5 may be provided integrally with the cleaning gun 7. The pressure regulator 4 may be a three-way valve or an unloader valve. The hot water washer is a movable type, but may be a fixed hot water washer. In this case, a plurality of stationary cleaning nozzles 6 are installed.

DESCRIPTION OF SYMBOLS 1 Boiler 2 Water storage tank 3 Pump 4 Pressure regulator 5 Gas-liquid mixer 6 Cleaning nozzle 7 Cleaning gun 10 Cabinet

Claims (2)

A water tank that stores hot water generated by the boiler, a high-pressure pump that pressurizes the hot water from the water tank, a pressure regulator that adjusts the pressure of the hot water under pressure, and a mixture of air and high-pressure hot water to create fine bubbles A hot water washing machine comprising a gas-liquid mixer that generates water and a washing nozzle that ejects hot water containing fine bubbles. The hot water washing machine according to claim 1, wherein an air inlet of the gas-liquid mixer is connected to a water storage tank, and air in the water storage tank is supplied to the gas-liquid mixer.

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