JP2014005944A - Hot water storage type water heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To take hot water and cold water out of a normally used water faucet and the like easily when power failure and water failure occur, and to retain the hot water and the cold water being taken out at a temperature that is easy for use.SOLUTION: A hot water storage type water heater includes: a lower part water intake pipe 8 for taking out hot water from the lower part of a hot water storage tank 3; a pressure pump connection port 12 provided at a water supply pipe 6; and an agitation mechanism 13 in a tank for agitating hot water and cold water in the hot water storage tank 3 in an emergency. In an emergency where power failure and water failure occur, a bicycle pump 100 is connected to the pressure pump connection port 12 to introduce air into the hot water storage tank 3, and this air pressurizes inside of the hot water storage tank 3. Also, by the air introduced into the hot water storage tank 3, a baffle 14 in the agitation mechanism 13 in the tank is made to swing to agitate the hot water and the cold water in the hot water storage tank 3. Thereby, even in an emergency, medium temperature water, which is easy for use, can be supplied to a faucet 11 from the lower part water intake pipe 8.

Description

  The present invention relates to a hot water storage type hot water heater, and more particularly to a hot water storage type hot water heater having a function to cope with a power failure or water outage by stirring hot water in a hot water storage tank.

  As a prior art, as described in Patent Document 1, for example, a hot water storage type hot water heater having a function corresponding to a power failure or water interruption is known. In the prior art, when a power failure or water outage occurs, the hot water in the tank is taken out by the following operation. In this take-out operation, first, an air pump attached to the tank is operated to increase the internal pressure in the tank. Subsequently, the three-way selector valve of the water heater is operated, and hot water is allowed to flow out from a faucet such as a faucet that is normally used while preventing hot water in the tank from entering the hot water supply pipe.

  As another conventional technique, for example, a water heater as described in Patent Document 2 is also known. In this prior art, hot water stored on the upper side of the tank and low-temperature water stored on the lower side of the tank are agitated by an electric pump in the event of a disaster or water outage, and the intermediate temperature water is taken out from the tank. I am doing so. According to this structure, it can avoid that the high temperature water which cannot be used as it is for domestic water is taken out from a tank directly.

Japanese Patent Laid-Open No. 10-47774 JP 2007-255753 A

  However, in the prior art disclosed in Patent Document 1, hot water in the tank can be taken out from the faucet normally used. However, after the low-temperature water in the tank is used up, there is high-temperature water that is difficult to use as domestic water. There will be room for improvement in emergency convenience. Moreover, in the prior art of patent document 2, since the hot water in a tank cannot be taken out from the faucet normally used, and when a power failure occurs by disasters, such as an earthquake, an electric pump cannot be operated, patent document The same problem as that of the prior art 1 occurs.

  The present invention was made to solve the above-described problems, and even when a power outage or water outage occurs due to a disaster or the like, the hot water in the tank can be easily taken out from the faucet or the like that is normally used, And it aims at providing the hot water storage type water heater which can hold | maintain the taken-out hot water at the temperature which is easy to use.

  A hot water storage type hot water supply apparatus according to the present invention is provided with a hot water storage tank for storing hot water, a water supply pipe connected to a lower part of the hot water storage tank for supplying water into the hot water storage tank, and a water supply pipe. An air introduction device connection portion to which an air introduction device capable of introducing water is connected, and a pipe for taking out hot water from the lower portion of the hot water storage tank and supplying the hot water to the hot water supply target, and connected to the lower portion of the hot water storage tank A lower intake pipe, and a tank agitation means that is provided in the hot water storage tank and is operated by the air introduced into the water supply pipe from the air introduction device to agitate the hot water in the hot water storage tank. At the time of use, the hot water in the hot water storage tank is supplied from the lower intake pipe to the hot water supply object using the air pressure introduced into the hot water storage tank by the air introduction device.

  According to the present invention, for example, even when a power failure and water outage occur in an emergency, the air introduction device can be connected to the air introduction device connection portion of the water supply pipe to introduce air into the hot water storage tank. Thereby, using the introduced air, the hot water in the hot water storage tank is stirred by the tank stirring mechanism, and the medium-temperature water that is easy to use can be generated in the tank. Further, by pressurizing the hot water storage tank with the introduced air, it is possible to supply intermediate temperature water from the lower intake pipe to a hot water supply target such as a faucet that is normally used, and to easily take out the intermediate temperature water from the hot water supply target.

In Embodiment 1 of this invention, it is a whole block diagram which shows the structure of the hot water storage type water heater. It is sectional drawing which shows the structure of a hot water storage tank typically. It is sectional drawing which shows the state which introduce | transduces air in a hot water storage tank using a bicycle air pump in emergency. It is sectional drawing which shows the state which the stirring mechanism in a tank act | operates with the air introduce | transduced in the hot water storage tank. In Embodiment 2 of this invention, it is a whole block diagram which shows the structure of the hot water storage type water heater. It is sectional drawing which shows the state which introduces air in a hot water storage tank using the air pump of standard equipment at the time of emergency.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. In each drawing used in this specification, common elements are denoted by the same reference numerals, and redundant description is omitted. FIG. 1 is an overall configuration diagram showing the configuration of a hot water storage type hot water supply apparatus in Embodiment 1 of the present invention. The hot water storage type hot water heater according to the present embodiment includes a tank unit 1, a heat pump unit 2 that is a heating means, and a tank internal stirring mechanism 13 described later. The heat pump unit 2 includes, for example, a compressor, an air refrigerant heat exchanger, an expansion valve, a water refrigerant heat exchanger, a refrigerant circulation pipe, and the like, and constitutes a refrigerant cycle (heat pump cycle) in which these devices are connected in an annular shape. doing. The heat pump unit 2 heats the low-temperature water flowing out from the lower part of the hot water storage tank 3 to be described later to the heat pump inlet pipe 4 to generate high-temperature water, and flows the high-temperature water into the upper part of the hot water storage tank 3 from the heat pump outlet pipe 5.

  The tank unit 1 is equipped with a hot water storage tank 3 for storing hot water. The hot water storage tank 3 is formed as a cylindrical closed tank, for example. The hot water storage tank 3 is individually connected with a heat pump inlet pipe 4, a heat pump outlet pipe 5, a water supply pipe 6, a hot water supply pipe 7, and a lower water intake pipe 8. If it demonstrates separately, first, the heat pump inlet piping 4 will flow low temperature water into the heat pump unit 2 from the lower part of the hot water storage tank 3, and the one end side of the heat pump inlet piping 4 is connected to the lower part of the hot water storage tank 3. . The other end of the heat pump inlet pipe 4 is connected to the secondary inlet of the water refrigerant heat exchanger of the heat pump unit 2. The heat pump outlet pipe 5 allows high temperature water to flow out of the heat pump unit 2, and one end side of the heat pump outlet pipe 5 is connected to the secondary side outlet of the water refrigerant heat exchanger. The other end of the heat pump outlet pipe 5 is connected to the upper part of the hot water storage tank 3. The water supply pipe 6 supplies city water into the hot water storage tank 3 and is connected to the lower portion (bottom surface portion) of the hot water storage tank 3 and has an opening 6A that opens to the bottom surface portion.

  On the other hand, the hot water supply pipe 7 is a pipe for taking out high temperature water from the upper part of the hot water storage tank 3 and supplying the hot water to the hot water supply target such as the faucet 11, and is connected to the upper part of the hot water storage tank 3. The lower intake pipe 8 is a pipe for taking hot water from the lower part of the hot water storage tank 3 and supplying the hot water to the faucet 11, and is connected to the lower part of the hot water storage tank 3. The lower intake pipe 8 functions as a low-temperature water supply pipe that supplies low-temperature water to be mixed with high-temperature water in normal times when electric power and city water are supplied to the water heater. Further, the lower intake pipe 8 functions as an emergency intake pipe for taking out hot water (medium temperature water) from the lower part of the hot water storage tank 3 in the event of a power failure and water outage due to a disaster or the like.

  The mixing valve 9 is a valve for mixing the high temperature water taken out to the hot water supply pipe 7 and the low temperature water taken out to the lower water intake pipe 8 and supplying the mixed water to the faucet 11, for example, by an electromagnetically driven three-way valve. It is configured. The mixing valve 9 includes at least two inflow ports A and B and one outflow port C. One inflow port A is connected to the upper part of the hot water storage tank 3 through the hot water supply pipe 7, and the other inflow port B is connected to the lower part of the hot water storage tank 3 through the lower water intake pipe 8. The outflow port C of the mixing valve 9 is connected to at least one faucet 11 via a faucet pipe 10. The faucet 11 is a water tap (hot water tap) that is normally used, and is an example of a hot water supply target.

  The mixing valve 9 includes a valve opening operation portion 9A that is manually operated in an emergency to forcibly open the mixing valve 9. When the valve opening operation unit 9A is operated, the inflow ports A and B of the mixing valve 9 are maintained in communication with the outflow port C even during a power failure.

  Next, with reference to FIG. 2 thru | or FIG. 4, the emergency system mounted in the hot water storage type water heater is demonstrated. FIG. 2 is a cross-sectional view schematically showing the configuration of the hot water storage tank. FIG. 3 is a cross-sectional view showing a state in which air is introduced into the hot water storage tank using a bicycle inflator in an emergency, and FIG. 4 shows that the tank agitation mechanism is activated by the air introduced into the hot water storage tank. It is sectional drawing which shows a state. First, as shown in FIG. 2, the water supply pipe 6 is provided with a pressurizing pump connection port 12 as an air introduction device connection portion. The pressure pump connection port 12 is connected to a later-described bicycle air pump 100 in an emergency, and is configured to introduce air discharged from the air pump 100 into the water supply pipe 6. Further, the pressurizing pump connection port 12 is held in a closed state when the bicycle air pump 100 is not connected as in normal times.

  The tank agitation mechanism 13 constitutes a tank agitation means provided in the hot water storage tank 3, and is operated by air introduced into the water supply pipe 6 from an air introduction device such as a bicycle air purifier 100, The hot water in the hot water storage tank 3 is agitated. More specifically, the tank agitation mechanism 13 includes a baffle 14 as an oscillating body and a baffle fixing mechanism 16 as a switching operation mechanism. The baffle 14 is formed of, for example, an elongated plate whose cross-sectional shape is bent in a substantially L shape, and one end side in the length direction is attached to the inside of the hot water storage tank 3 via a hinge 15 so as to be swingable. Further, the other end side of the baffle 14 can swing upward from the low-temperature water shielding position shown in FIG. Here, the low temperature water shielding position is a position where the baffle 14 covers the opening 6A of the water supply pipe 6 from above, that is, low temperature water (city water) flowing into the hot water storage tank 3 from the opening 6A of the water supply pipe 6. It is defined as the position where the flow impinges on the baffle 14.

  The baffle fixing mechanism 16 is operated to be switched to the first and second switching positions from the outside of the hot water storage tank 3 by a user of a water heater, and can be engaged and disengaged with respect to the other end side of the baffle 14. It is configured. As an example of a specific configuration, the baffle fixing mechanism 16 includes a rod portion 16A, an operation portion 16B, and an engagement portion 16C. The rod portion 16A is configured by a pin-like member having a male screw formed over a certain length range, screwed into a screw hole 3A provided through the bottom surface of the hot water storage tank 3, and the hot water storage tank 3 Protrudes inside and outside. The screw hole 3A is liquid-tightly sealed by a sealing mechanism (not shown).

  The operation part 16B is provided on the rod part 16A outside the hot water storage tank 3, and is rotated manually. The engaging portion 16 </ b> C is provided in the rod portion 16 </ b> A inside the hot water storage tank 3, and is configured by, for example, a protrusion or the like protruding in the radial direction from the rod portion 16 </ b> A toward the baffle 14. The engaging portion 16C engages and disengages from the baffle 14 by rotating integrally with the rod portion 16A and the operating portion 16B.

  The baffle fixing mechanism 16 includes a first switching position where the engaging portion 16C engages the baffle 14 (FIG. 2) and the engaging portion 16C when the user of the water heater rotates the operation portion 16B. Is switched to the second switching position (FIGS. 3 and 4) at which it is released from the baffle 14. Thereby, the baffle fixing mechanism 16 holds (fixes) the baffle 14 at the low-temperature water shielding position at the first switching position. Further, at the second switching position, the baffle 14 is configured to receive the air (bubbles) B rising from the opening 6A of the water supply pipe 6 and to swing upward from the low-temperature water shielding position.

  The hot water storage type hot water heater according to the present embodiment has the above-described configuration. Next, the operation of the hot water storage type hot water heater will be described. First, during a normal time when no power failure or water outage occurs, a hot water storage operation and a hot water supply operation are executed by a control device (not shown) mounted on the tank unit 1. During the hot water storage operation, the heat pump unit 2 in FIG. 1 is driven and, for example, a circulation pump (not shown) provided in the heat pump inlet pipe 4 is driven. Thereby, the low temperature water staying in the lower part of the hot water storage tank 3 flows into the water refrigerant heat exchanger of the heat pump unit 2 through the heat pump inlet pipe 4 and exchanges heat with the high temperature refrigerant in the heat exchanger. Become hot water. This high-temperature water flows out from the water-refrigerant heat exchanger to the heat pump outlet pipe 5 and is stored in the hot water storage tank 3 from above. Moreover, city water is supplied to the lower part of the hot water storage tank 3 from the water supply pipe 6 according to the amount of hot water supplied to the outside. As a result, the hot water in the hot water storage tank 3 is formed with a temperature stratification in which a high temperature layer, a middle temperature layer, and a low temperature layer are sequentially arranged from the upper side toward the lower side. The hot water storage operation is realized, for example, when a user of the water heater operates a remote controller.

  On the other hand, when the user opens the faucet 11 during the hot water supply operation, high-temperature water staying in the upper part of the hot water storage tank 3 is supplied to the mixing valve 9 through the hot water supply pipe 7. This supply operation is executed by the water pressure of city water added from the water supply pipe 6 into the hot water storage tank 3. Further, the low-temperature water staying in the lower part of the hot water storage tank 3 is supplied to the mixing valve 9 through the lower intake pipe 8 by the action of the water pressure and gravity. These high-temperature water and low-temperature water are mixed by the mixing valve 9 so as to reach a desired temperature, and hot water is supplied to the faucet 11 via the faucet pipe 10. In addition, the said desired temperature is implement | achieved when the said control apparatus controls the mixing valve 9 according to a user's remote control operation, for example. Further, during the hot water supply operation, city water is supplied to the lower part of the hot water storage tank 3 from the opening 6A of the water supply pipe 6 according to the amount of hot water supplied to the outside.

  Further, in a normal time including a hot water supply operation, as shown in FIG. 2, the baffle fixing mechanism 16 is held at the first switching position, and the baffle 14 covers the opening 6 </ b> A of the water supply pipe 6 from the upper side. Is held in. For this reason, when city water flows into the lower part of the hot water storage tank 3 from the opening 6 </ b> A of the water supply pipe 6, this city water flow collides with the baffle 14 and is diffused in the horizontal direction, and is located above the baffle 14. It does not reach the high temperature and middle temperature layers. Thereby, at the time of hot water supply operation, the baffle 14 can prevent the city water flowing into the hot water storage tank 3 from reaching the intermediate temperature layer and the high temperature layer and stirring these layers. Therefore, the temperature stratification in the hot water storage tank 3 can be stably maintained.

  Next, the operation of the hot water storage type water heater in an emergency will be described. In the event of a power outage or water outage due to a disaster such as an earthquake, the city water and its water pressure supply to the hot water storage tank 3 is stopped. Therefore, even if the tap 11 that is normally used is opened, the hot water in the hot water storage tank 3 is supplied with hot water. It cannot be taken out from the pipe 7. In this state, hot water in the hot water storage tank 3 can flow out of the lower intake pipe 8 due to gravity. For example, a faucet at a position higher than the hot water storage tank 3 in the faucet 11 is connected to the lower intake pipe 8. Cannot supply hot water.

  In this case, as shown in FIG. 3, a bicycle air pump 100 that does not require a power source is connected to the pressure pump connection port 12 of the water supply pipe 6, and the air pump 100 is operated manually or the like. Air discharged from the bicycle air intake 100 is introduced into the hot water storage tank 3 through the water supply pipe 6 to increase the pressure in the tank. Therefore, when the bicycle air purifier 100 is used, the inside of the hot water storage tank 3 can be maintained in a pressurized state by using the air discharged from the air purifier 100 even in a water shut-off state. Thereby, hot water can be supplied from the hot water storage tank 3 through the lower intake pipe 8 to the faucet 11 located higher than the hot water storage tank 3. When hot water is taken out from the lower intake pipe 8 using the air inlet 100, the mixing valve 9 is forcibly opened by operating the valve opening operation portion 9A of the mixing valve 9.

  Further, when the bicycle air pump 100 is used, the baffle fixing mechanism 16 is manually rotated to the second switching position to release the baffle 14 from being fixed. Even when the baffle 14 is unlocked, the baffle 14 is held at the low-temperature water shielding position by its own weight, but when the bubbles B rising from the opening 6A of the water supply pipe 6 accumulate to some extent below the baffle 14, FIG. As shown, the bubble B receives the buoyancy of the bubble B and swings upward. As a result, the bubbles B accumulated under the baffle 14 are released, and the baffle 14 that has lost its buoyancy swings downward due to its own weight and returns to the low-temperature water shielding position. In this way, the baffle 14 repeats up and down swinging by the air introduced into the hot water storage tank 3, so the hot water in the hot water storage tank 3 is stirred to eliminate the temperature stratification and the hot water temperature in the tank is increased and decreased. Can be equalized in direction. In addition, when a power failure or water break is restored, the baffle fixing mechanism 16 is rotated in the opposite direction to that in an emergency and returned to the first switching position, thereby fixing the baffle 14 at the low-temperature water shielding position.

  As described above in detail, according to the present embodiment, even when a power failure and water outage occur in an emergency, the hot water storage tank 3 can be used by the tank agitation mechanism 13 only by using the bicycle air pump 100 that does not require a power source. The hot water in the tank is automatically agitated, and medium-temperature water that is easy to use can be generated almost entirely in the tank. Then, by pressurizing the hot water storage tank 3 with the bicycle air inlet 100, medium temperature water is supplied from the lower intake pipe 8 to most of the taps 11 that are normally used, and the medium temperature water can be easily taken out from the tap 11. it can. Therefore, when a disaster or the like occurs, it is possible to execute pressurization, agitation, and removal of medium temperature water in the hot water storage tank 3 without requiring a power source and tap water pressure, and improve the convenience of the water heater. Can do.

  In particular, in the present embodiment, the bicycle inflator 100 that is readily available and easy to carry can be used as an air introduction device. That is, the general air container 100 used in normal times can be used as an emergency air introduction device. Further, even if the inflator 100 is not owned, it can be borrowed easily from the neighborhood. Therefore, the convenience during a disaster can be greatly improved.

  In the present embodiment, the temperature stratification in the hot water storage tank 3 can be stably maintained by using the baffle 14 at normal times, and the hot water in the tank can be stirred by the baffle 14 in an emergency. Therefore, the baffle 14 can be provided with different functions in the normal time and the emergency time, and the performance can be improved while reducing the number of parts of the water heater and simplifying the structure. In the present embodiment, low temperature water for mixing is supplied from the lower intake pipe 8 at normal times, and hot water in the hot water storage tank 3 is taken out from the lower intake pipe 8 in an emergency. Therefore, the lower intake pipe 8 can be used as both a normal low-temperature water supply pipe and an emergency intake pipe, and the number of parts of the pipe can be reduced to simplify the piping structure. Moreover, by providing the mixing valve 9 with the valve opening operation section 9A, the mixing valve 9 can be forcibly opened even when a power failure occurs, and the lower intake pipe 8 can be used as an emergency intake pipe.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is an overall configuration diagram showing the configuration of the hot water storage type hot water heater in Embodiment 2 of the present invention, and FIG. 6 is a state in which air is introduced into the hot water storage tank by using a standard air pump in an emergency. FIG. As shown in these drawings, the hot water storage type water heater according to the present embodiment has substantially the same configuration as that of the first embodiment, but an emergency air pump 200 is provided as standard equipment in the tank unit 1 ′. Preloaded. The air pump 200 is an air introduction device that is used in place of the bicycle air intake 100, and is always connected to the pressure pump connection port 12 of the water supply pipe 6. In an emergency, the air pump 200 is manually operated to introduce air into the water supply pipe 6.

  In the present embodiment configured as described above, it is possible to obtain substantially the same operational effects as in the first embodiment. In particular, according to the present embodiment, in an emergency, even a user who does not own the bicycle air pump 100 can pressurize the hot water storage tank 3 using the air pump 200 that is mounted in advance in the water heater. Stirring and taking out of the warm water can be performed quickly, and convenience can be further improved.

  In the first and second embodiments, the bicycle air inlet 100 and the air pump 200 are exemplified as the air introduction device. However, the present invention is not limited to this, and various devices that can pump air without requiring a commercial power supply can be employed as the air introduction device. In the present invention, the air introduction device does not necessarily have to be manually operated. That is, an electric pump that is operated by an emergency backup power source (battery or the like), a mechanical pump that is operated by fuel, or the like may be employed as the air introduction device.

  In the first and second embodiments, the lower intake pipe 8 serves as a normal low temperature water supply pipe and an emergency intake pipe. However, the present invention is not limited to this, and the emergency water intake pipe (lower water intake pipe 8) and the low temperature water supply pipe may be configured by separate pipes.

  Further, in the first and second embodiments, as an example of the hot water storage type hot water heater, the heat pump type hot water heater that heats the hot water in the hot water storage tank 3 by the heat pump unit 2 has been described as an example. However, the present invention is not limited to this, and can be applied to various hot water storage hot water heaters that heat hot water in the hot water storage tank 3 by heating means other than a heat pump.

1, 1 'Tank unit 2 Heat pump unit 3 Hot water storage tank 3A Screw hole 4 Heat pump inlet pipe 5 Heat pump outlet pipe 6 Water supply pipe 6A Opening 7 Hot water supply pipe 8 Lower water intake pipe 9 Mixing valve 9A Valve opening operation part 10 Faucet pipe 11 Faucet ( Hot water supply target)
12 Pressurization pump connection port (air introduction device connection part)
13 In-tank stirring mechanism (in-tank stirring means)
14 Baffle (oscillator)
15 Hinge 16 Baffle fixing mechanism (switching operation mechanism)
16A Rod part 16B Operation part 16C Engagement part 100 Bicycle inflator (air introduction device)
200 Air pump (air introduction equipment)
A, B Inflow port C Outflow port

Claims (5)

A hot water storage tank for storing hot water,
A water supply pipe connected to the lower part of the hot water storage tank and supplying water into the hot water storage tank;
An air introduction device connecting portion provided in the water supply piping, to which an air introduction device capable of introducing air into the water supply piping is connected;
A pipe for taking out hot water from the lower part of the hot water storage tank and supplying the hot water to a hot water supply target, and a lower water intake pipe connected to the lower part of the hot water storage tank;
A tank agitation unit that is provided inside the hot water storage tank and is operated by air introduced into the water supply pipe from the air introduction device to agitate the hot water in the hot water storage tank;
A hot water storage type hot water supply system configured to supply hot water in the hot water storage tank from the lower intake pipe to the hot water supply object using an air pressure introduced into the hot water storage tank by the air introduction device when the air introduction device is used. Machine. A hot water storage tank for storing hot water,
A water supply pipe connected to the lower part of the hot water storage tank and supplying water into the hot water storage tank;
An air introduction device provided in the water supply pipe and capable of introducing air into the water supply pipe;
A pipe for taking out hot water from the lower part of the hot water storage tank and supplying the hot water to a hot water supply target, and a lower water intake pipe connected to the lower part of the hot water storage tank;
A tank agitation unit that is provided inside the hot water storage tank and is operated by air introduced into the water supply pipe from the air introduction device to agitate the hot water in the hot water storage tank;
A hot water storage type hot water supply system configured to supply hot water in the hot water storage tank from the lower intake pipe to the hot water supply object using an air pressure introduced into the hot water storage tank by the air introduction device when the air introduction device is used. Machine. The tank agitation means includes:
The hot water storage tank is pivotally attached to the lower side of the hot water storage tank, and the upper side of the hot water storage tank is covered with the low temperature water shielding position, which is the position of covering the opening of the water supply pipe from the upper side. An oscillating body capable of oscillating,
Switching is performed from the outside of the hot water storage tank to the first and second switching positions, the rocking body is held at the low-temperature water shielding position at the first switching position, and the rocking body is moved at the second switching position. A switching operation mechanism that allows the air floating from the opening of the water supply pipe to receive and swing;
The hot water storage type water heater according to claim 1 or 2, further comprising: A pipe for removing hot water from the upper part of the hot water storage tank and supplying the hot water to the hot water supply target, and a hot water supply pipe connected to the upper part of the hot water storage tank;
An electromagnetically driven mixing valve having two inflow ports to which the hot water supply pipe and the lower intake pipe are individually connected and an outflow port to which the hot water supply target is connected;
The hot water storage hot water supply according to any one of claims 1 to 3, wherein the mixing valve is provided with a valve opening operation unit that is operated when the air introduction device is used and forcibly opens the mixing valve. Machine. The air introduction device is a bicycle air pump;
The hot water storage type hot water supply device according to claim 1, wherein the air introduction device connection portion is configured to connect the bicycle air inlet.

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