JP2005201497A - Hot water storage type water heater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve maintainability and durability by simplifying constitution while preventing failure caused by infiltration of rainwater or the like by securing the sealing performance of a front plate and an oxygen enriching apparatus built in a body of a hot water storage type water heater. <P>SOLUTION: This hot water storage type water heater is provided with the detachable front plate 4 shielding the front side of an outer casing 3 and having a required minimum air intake 4-1; a tank 1; an oxygen enrichment membrane 9 having an air supply-exhaust port of flange shape and producing oxygen of high concentration inside; and the oxygen enriching apparatus 9-1 provided with an intake fan 10 for leading air to the oxygen enrichment membrane 9. The oxygen enriching apparatus 9-1 is fixed to the tank 1, and the air supply-exhaust port of flange shape is formed to stick closely to the back face of the front plate. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention supplies a gas such as oxygen into the bath water of a bathtub using the bath piping of a hot-water storage water heater that heats the hot water using electric power supplied based on late-night power or hourly rate systems. The present invention relates to a hot water storage type water heater having a function to perform.

  Conventionally, this type of oxygen supply device is equipped with a fine bubble generator or jet injection device, and supplies gas to a pipeline for circulating bath water such as a bubble bath or jet bath that circulates bath water through these devices. There is a device provided with a supply unit and an oxygen enrichment device for supplying oxygen-enriched air to the supply unit (see, for example, Patent Document 1).

FIG. 4 shows an oxygen supply device for a conventional bathtub described in Patent Document 1. In the figure, 1 is a bathtub, 2 is a conduit, 3 is a supply section, 4 is a suction port, 5 is a discharge port, 6 is an oxygen enrichment device, and 7 is a pump.
JP-A-4-2347

  However, in the conventional configuration described above, in a bath apparatus equipped with a fine bubble generator and a jet spray device, an oxygen supply unit is provided in the middle of the bubble bath pipe or jet bath pipe, and oxygen-enriched air is supplied to the supply unit. In order to supply oxygen to the bathtub, it is necessary to install a fine bubble generator and jet injection device and have a dedicated bath system, and it cannot be easily installed at home. It was. In addition, since the jet bath system has a large flow rate, it has been difficult to use for a long time in relation to electricity bills, noise, etc., and sufficient oxygen cannot be supplied.

  Therefore, in order to solve the above problems, an oxygen enrichment device that supplies high concentration oxygen is installed on the heat source device side that supplies hot water to the bathtub, and high concentration oxygen is mixed into the bath circuit connecting the heat source device and the bathtub. Configuration is conceivable.

  However, in an instantaneous water heater using gas or oil as a fuel, there is a particular problem even if an oxygen enrichment device is installed in the water heater so that high-concentration oxygen is mixed into the bath piping in the main body. However, in hot water storage water heaters such as electric water heaters and heat pump water heaters that boil at night with mainly midnight power and use the stored hot water during the day, an oxygen enricher is installed in the main body. When installed, the air taken from outside the main body flows into the main body via the oxygen enricher, and this air flow significantly reduces the heat retention characteristics of the hot water storage tank, boiling it to a high temperature and storing hot water. The problem of lowering the temperature of the hot water occurs, and there is a risk that rainwater or small animals may enter the main body together with air, which deteriorates the electrical insulation inside the main body. , Leakage or storage type water heater itself is a problem that there is a possibility that a failure.

  The present invention solves a specific problem that occurs when an oxygen enrichment device is incorporated in a hot water storage water heater, and constitutes an air passage for the air flowing through the oxygen enrichment device incorporated in the main body, By improving the airtightness of this air passage, rainwater and small animals entering the hot water storage tank may deteriorate the electrical insulation inside the main unit, causing electric leakage or malfunctioning of the hot water storage water heater itself. The purpose is to solve the problem.

  In order to achieve the above object, the hot-water storage water heater of the present invention is a detachable having a substantially rectangular parallelepiped outer casing that is open at the front, the front of the outer casing, and a minimum required air intake. A front plate, a tank for storing a predetermined amount of heated water, a bath circuit for supplying the hot water in the tank to the bathtub, and a flange-shaped air supply / exhaust port to generate high-concentration oxygen inside An oxygen enrichment device comprising an oxygen enrichment membrane and an intake fan that guides air to the oxygen enrichment membrane, and a mixing means for incorporating gas generated in the oxygen enrichment device into the bath circuit, the oxygen enrichment device The apparatus is fixed to the tank, and the flange-shaped air supply / exhaust port is in close contact with the back surface of the front plate.

  According to the above invention, the oxygen enrichment apparatus has a large mass and strength, is fixed to a stable tank that absorbs minute operation vibrations, and has a sufficient sealing surface between the front plate and the flange. Since it can be secured, it is possible to achieve both the intake of necessary air and the prevention of unnecessary air and rainwater intrusion into the exterior housing with a simple configuration that does not add a special sealing path. As a result, the electrical insulation inside the main body deteriorates, and the problem of electric leakage or failure of the hot water storage water heater itself can be solved.

  In addition, no matter how many times the front plate is attached and detached for the installation and maintenance of hot water supply pipes and electrical work, the sealing performance between the flange and the front plate does not deteriorate, and the initial performance is stable. Can be maintained.

  And while eliminating the influence of the outside air on the heat insulation characteristics of the tank, it is possible to mix a gas such as high-concentration oxygen into the bathtub using the bath piping in the housing, and the high concentration mixed in the bath water. The oxygen concentration in the bathroom can be ensured to an appropriate value by the gas such as oxygen.

  The hot water storage water heater of the present invention has an oxygen-enriching device fixed to a stable tank that has a large mass and strength and absorbs minute operation vibrations, and has a hermetically sealed surface with a front plate by a flange. Because it can be secured sufficiently, it is possible to achieve both the intake of necessary air and the prevention of unnecessary air and rainwater intrusion into the exterior housing with a simple configuration that does not add a special sealing path. It is possible to solve the problem that the electrical insulation inside the main body is deteriorated, the electric leakage is caused, and the hot water heater itself is broken.

  In addition, no matter how many times the front plate is attached and detached for the installation and maintenance of hot water supply pipes and electrical work, the sealing performance between the flange and the front plate does not deteriorate, and the initial performance is stable. Can be maintained.

  And by preventing the intrusion of unnecessary air and rainwater into the exterior housing, it improves the heat retention characteristics and durability of the hot water heater and uses the bath piping in the housing to keep it in the bathtub. A gas such as high-concentration oxygen can be mixed, and the oxygen concentration in the bathroom can be ensured to an appropriate value by the gas such as high-concentration oxygen mixed in the bath water.

  According to a first aspect of the present invention, there is provided a substantially rectangular parallelepiped outer casing having an open front, a detachable front plate that shields the front of the outer casing and has a minimum necessary air intake, and a predetermined amount of heated water. A tank for storing hot water, a bath circuit for supplying hot water in the tank to the bathtub, an oxygen-enriched membrane having a flange-shaped air supply / exhaust port and generating high-concentration oxygen inside, and the oxygen-enriched membrane An oxygen enrichment device having an intake fan that guides air to the gas, and a mixing means for mixing gas generated in the oxygen enrichment device into the bath circuit, the oxygen enrichment device being fixed to the tank, The flange-shaped air supply / exhaust port is configured to be in close contact with the back surface of the front plate, and the oxygen enricher has a large mass and strength and stably absorbs minute operation vibrations. That it is fixed to the tank As a result, it is possible to secure a sufficient sealing surface with the front plate, so that a simple structure without adding a special sealing path can be used, and necessary air can be taken in and unnecessary air inside the exterior casing. In addition, it is possible to achieve both prevention of intrusion of rainwater and the problem that electrical insulation inside the main body deteriorates, which causes electric leakage or failure of the hot water heater itself.

  In addition, no matter how many times the front plate is attached and detached for the installation and maintenance of hot water supply pipes and electrical work, the sealing performance between the flange and the front plate does not deteriorate, and the initial performance is stable. Can be maintained.

  And by preventing the intrusion of unnecessary air and rainwater into the exterior housing, it improves the heat retention characteristics and durability of the hot water heater and uses the bath piping in the housing to keep it in the bathtub. A gas such as high-concentration oxygen can be mixed, and the oxygen concentration in the bathroom can be ensured to an appropriate value by the gas such as high-concentration oxygen mixed in the bath water.

  According to a second aspect of the present invention, an oxygen enrichment device comprises a case having a flange, an oxygen enrichment membrane and an intake fan inside, and the flange has a dish-like shape with a certain depth. The bottom surface of the flange has an air inlet and an exhaust port communicating with the case, and has an air introduction portion having a fixed surface. The air intake port of the front plate is a lower side that does not face the air inlet and the exhaust port. It is characterized by being configured to communicate with the air supply port and the air exhaust port through this air introduction part, and it is possible to wash the rain under strong wind, the exterior housing and the air intake with high-pressure water Even when the water drops hit the air inlet and are discharged again from the air intake, and no water drops enter the oxygen enrichment device. Intrusion of cleaning water It is possible to achieve both prevention, even if such small animals such as bees and spiders nest invade into the air intake, it is possible to clean the high pressure of the washing water.

  According to a third aspect of the present invention, the oxygen-enriched membrane and the intake fan are fixed to the upper inside of the case, the bottom surface of the case is downwardly inclined toward the front plate, and the air supply port of the flange and the bottom surface of the case The exhaust passage, the air introduction part of the flange, and the communication path to the air intake of the front plate are all configured in a descending gradient, and oxygen-rich, for example, by sucking in moisture Even if condensation occurs inside the case of the gasification device, the oxygen-enriched film and the intake fan are not submerged, and water droplets are discharged from the air intake on the front plate, improving the durability of the oxygen-enriched film and the intake fan, Hygiene deterioration due to unnecessary water accumulation can be prevented, and hygiene can be ensured when gas such as high-concentration oxygen is mixed into the bathtub using the bath piping in the housing.

  The fourth invention is characterized in that a substance containing a factor that is not preferred by small animals is attached to the flange, from the air intake of the front plate that prevents intrusion of rainwater, etc. to the oxygen enrichment device. The route is a place where small animals are easy to nest, but not only can this be prevented by the fact that substances containing factors that small animals do not like adhere to the flange that is viewed from the air intake, but also in the form of painting. By implementing this, it is possible to prevent deterioration of aesthetics and hygiene due to adhesion of foreign matters.

  In a fifth aspect of the present invention, the flange has a vibration-proof sealing material, and is configured to suppress transmission of operating vibration from the flange to the front plate. The device has a large mass and strength, is fixed to a stable tank that absorbs minute operating vibrations, and is vibration proof even if it is attached to the flange of the oxygen enrichment device with a front plate By providing a sealing material, in addition to the effect of preventing unnecessary air and rainwater from entering the interior of the exterior casing, it is difficult for the vibrations of the oxygen enricher to be transmitted to the front plate and the exterior casing. The noise level of a hot water storage water heater can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is an overall configuration diagram of a hot water heater according to the first embodiment of the present invention, FIG. 2 is a detailed view of the oxygen enricher, and FIG. 3 is an external view of the hot water heater.

  In the figure, hot water from a hot water storage tank 1 for storing hot water is taken out and heated by a heat source unit 2 and then returned to the hot water storage tank 1 to form a boiling circuit so that hot water is stored from the upper part of the hot water storage tank 1 in a stacked state. I have to. In this embodiment, a heat pump water heater using a supercritical heat pump cycle using CO2 as a refrigerant as a heat source will be described. However, an electric water heater using an electric heater as a heat source may be used. Or a configuration provided outside the hot water storage tank.

  Reference numeral 3 denotes a rectangular parallelepiped exterior housing that is open at the front, and a detachable front plate 4 is fixed by screws 4-2. In the case of construction for hot water supply piping, electrical work, or maintenance work, This can be done by removing the front plate 4.

  When hot water is supplied to the bathtub 5, the hot water in the hot water storage tank 1 flows into the bathtub 4 through the bath outlet pipe 12 and is filled by opening the hot water solenoid valve 6.

  When reheating the hot water in the bathtub 5, the water in the bathtub 5 is guided to the reheating heat exchanger 8 disposed in the high-temperature water section at the top of the hot water storage tank 1 by driving the bath pump 7. It is designed to catch up with heat exchange.

  When supplying high-concentration oxygen to the bath 5, the intake fan 10 is driven to introduce a large amount of air to the oxygen-enriched film 9, and the vacuum pump 11 connected to the oxygen-enriched film 9 is driven to enrich the oxygen. Only oxygen is sucked from the air passing through the membrane 9 and mixed from the oxygen supply port 13 provided in the bath outlet pipe 12 of the reheating path, thereby releasing the high-concentration oxygen bubbles 14 into the bathtub 4 to form an oxygen bath. . At this time, when the bath pump 8 is operated, the high-concentration oxygen bubbles 14 can be efficiently diffused into the bathtub 4.

  Further, a check valve unit 15 is provided between the vacuum pump 11 and the oxygen supply port 13 in order to prevent reverse flow of the bath water.

  The oxygen enrichment apparatus includes a case 17 in which a flange 16, an oxygen enrichment film 9, and an intake fan 10 are fixed in the upper part of the interior of the chamber. The oxygen enrichment apparatus is fixed to the trunk of the tank 1 by a tank support fitting 18.

  The outer periphery of the flange 16 is made of a synthetic rubber having excellent weather resistance, and a flange packing 16-1 of an independent foam is attached. When the front plate 4 is attached, the flange 16 is compressed about twice, The airtightness and watertightness of the joint between the front plate 4 and the oxygen enricher are ensured, and the airtightness is maintained no matter how many times the front plate 3 is repeatedly attached and detached for the construction and maintenance of hot water supply pipes and electrical work. The initial performance can be stably maintained without any deterioration in the water and water tightness.

  The flange 16 has a deep dish shape, and an air introduction portion that provides a sufficient space for communication between the louvered air intake 4-1, the oxygen-enriched membrane 9, and the intake fan 10 at a position lowered by one step. 16-2 is formed. The oxygen-enriching device fixed to a stable tank that has a large mass and strength and absorbs minute operating vibrations should ensure a sufficient sealing surface between the front plate 4 and the flange 16 and the flange packing 16-1. Therefore, with a simple configuration that does not add a special sealed path, it is possible to achieve both necessary air intake and prevention of unnecessary air and rainwater intrusion into the exterior housing 3, The electrical insulation inside the main body deteriorates, and it is possible to solve the problem of electric leakage or failure of the hot water heater itself. Further, the air intake 4-1 is configured not to directly face the oxygen-enriched membrane 9 and the intake fan 10, but at a position lowered by one step. Even when the inlet 4-1 is washed with high-pressure water, it is considered that water droplets hit the air inlet 16-2 and are discharged again from the air inlet 4-1 so that water droplets do not enter the oxygen enricher. ing. For this reason, it is possible to achieve both the intake of necessary air and the prevention of unnecessary rainwater and washing water from entering the interior of the exterior housing 3, and small animals such as bees and frogs can enter the air intake 4-1. Even if a nest is formed by entering the inside, it can be cleaned with high-pressure washing water, etc., and a failure caused by blockage of the air introduction part 16-2 or deterioration of internal electrical insulation is prevented in advance. The structure is excellent in maintainability.

Further, the bottom surface of the case 17 has a downward slope toward the front plate 4, and a communication path from the bottom surface of the case 17 to the air introduction portion 16-2 of the flange 16 and the air intake port 4-1 of the front plate 4. Are configured to have a downward slope, and even if moisture is sucked into the inside of the case 17 of the oxygen-enriching device, the oxygen-enriched film 9 and the intake fan 10 are not submerged, and the water droplets are generated on the front plate 4 In addition to being able to improve the durability of the oxygen enrichment device, it is possible to prevent sanitary deterioration due to unnecessary water accumulation, and the oxygen supply port 13 from the oxygen enrichment device, Sanitary safety to the path leading to the bath outlet pipe 12 and the bathtub 4 is ensured.
In addition, the flange 16 may be coated with a weather-resistant resin, preventing rust generation and adhesion of foreign matter, and realizing aesthetics and deterioration of hygiene.

  In addition, the paint of the flange 16 may be mixed with a factor that small animals do not like, for example, a substance containing a pepper component, etc., and the air intake 4-1 that prevents entry of rainwater etc. is a place where small animals can easily nest. However, this can be prevented by adhering these substances to the flange 16 viewed from the air intake 4-1, and the air flow and constant noise caused by operating the intake fan 10 periodically. It is also possible to prevent this.

  Further, when the front plate 4 is fixed with the screw 4-2, the metal portion of the flange 16 may be covered with the flange packing 16-1 so that the metal does not come into contact with the flange packing 16-1. -1 is in a compressed state, and if it is made of a material having vibration-proofing properties in addition to airtightness and watertightness, it is difficult for the vibrations of the oxygen enricher to be transmitted to the front plate and the outer casing. Since the chemical conversion device has a large mass and strength and is fixed to a stable tank 1 that absorbs minute operation vibrations, the noise level as a hot water storage water heater can be suppressed.

  As described above, the hot water heater according to the present invention has a structure that improves the hermetic seal between the oxygen enrichment device and the air intake port of the front plate. It is possible to realize oxygen-mixed operation with a simple structure, and has the merit that the device can be downsized and has excellent maintainability, and it is supplied based on late-night power or hourly rate system It can be applied not only to a hot water heater that uses hot water to boil hot water, but also to equipment that stores hot water using gas, oil, solar heat, etc., and performs bath operation using the hot water.

Overall configuration diagram of a hot water storage type hot water heater in Embodiment 1 of the present invention Detailed view of oxygen enrichment apparatus in Embodiment 1 of the present invention External view of hot water storage type water heater in Embodiment 1 of the present invention Configuration diagram of a conventional oxygen supply device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tank 3 Exterior casing 4 Front plate 4-1 Air intake 5 Bath 9 Oxygen-enriched film 10 Intake fan 11 Vacuum pump 16 Flange

Claims (5)

A substantially rectangular parallelepiped outer casing that is open at the front, a removable front plate that shields the front of the outer casing and has a minimum required air intake, and a tank that stores a predetermined amount of heated water; A bath circuit for supplying hot water in the tank to the bathtub, an oxygen supply film that has an air supply / discharge port and generates high-concentration oxygen inside, and an intake fan that guides air to the oxygen enrichment film An oxygen enrichment device, and a mixing means for sucking a gas generated in the oxygen enrichment device with a vacuum pump and mixing the gas into the bath circuit, the oxygen enrichment device being fixed to the tank and the air supply / discharge A hot water heater with a mouth that is in close contact with the back of the front plate. The air supply / exhaust port has a flange shape, and the flange has a substantially dish shape with a certain depth. The bottom surface of the flange has an air supply port and an exhaust port communicating with the case, and a constant surface. The air intake port of the front plate is in a lower position that does not face the air supply port and the exhaust port, and communicates with the air supply port and the exhaust port through the air introduction unit. The hot water storage water heater according to claim 1, wherein the hot water heater is constructed. The oxygen-enriched film and the intake fan are fixed inside the case, the bottom surface of the case is inclined downward toward the front plate, and the air supply and exhaust ports of the flange from the bottom surface of the case, and the flange The hot water storage type hot water heater according to claim 1 or 2, wherein all of the communication paths from the air introduction portion to the air intake port of the front plate have a downward slope. The hot water storage water heater according to claim 1 or 3, wherein a substance containing a factor that is not preferred by small animals is attached to the flange. The hot water storage type hot water heater according to claim 1 or 4, wherein the flange has a vibration-proof sealing material to suppress transmission of operation vibration from the flange to the front plate.

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