JP5750027B2 - Hot water storage water heater - Google Patents

Description

  The present invention relates to a hot water storage type hot water supply device for supplying hot water heated by a heating means and stored in a hot water storage tank.

  Conventionally, in this type of hot water storage type hot water supply device, the support legs that support the hot water storage tank are fixed to the base plate and the tank legs that support from the bottom of the hot water storage tank to the base plate at the bottom of the frame body. It was divided into two frame legs that support the bottom (see Patent Document 1).

JP2011-2144A

  However, this conventional one requires two legs and a plurality of parts for fixing them to one support leg, is expensive when the number of parts is large and the machining allowance is included, and the assembly is complicated and time-consuming. And the problem that stress is concentrated and deformed on the split surface of the base plate due to shaking or vibration caused by an earthquake.

In order to solve the above-mentioned problems, the present invention has, in particular, a configuration in which a hot water storage tank composed of an upper and lower bowl-shaped cylindrical body for storing hot water, a water supply pipe for supplying water to the hot water storage tank, and a hot water supply pipe for supplying hot water from the hot water storage tank, And a heating means for heating the hot water in the hot water storage tank and a frame for covering the hot water storage tank, wherein the base plate at the bottom of the frame body is provided with a notch, and the hot water storage tank at the tip. A mounting part attached to the peripheral surface, a mounting part for mounting the bowl-shaped bottom part of the hot water storage tank in the middle part, a base fixing part for fixing the base plate, and anchor bolts are driven into the installation part on the bottom part. An integral support leg forming an anchor fixing portion to be fixed is attached to the lower part of the hot water storage tank and provided through the notch.

  As described above, according to the present invention, since the hot water storage tank is supported by one support leg through the notch portion of the base plate from the lower portion of the hot water storage tank, the number of parts is small and the assembly is easy. It does not take much time, and the support legs receive the weight of the hot water storage tank not only at the upper mounting part but also at the mounting part on which the bowl-shaped bottom part of the hot water storage tank is placed. It is powerful and has no split surface, so it can reliably support a hot water storage tank that becomes heavy when water enters it for a long time without being strongly deformed by shaking and vibration. It is.

The schematic block diagram of the hot water storage type hot water supply apparatus of one Embodiment of this invention. The perspective view of the principal part. FIG. 3 is a partially exploded perspective view of FIG. 2. Explanatory drawing which shows the attachment state of a base board and a support leg.

Next, a hot water storage type hot water supply apparatus according to an embodiment of the present invention will be described with reference to the drawings.
1 is a hot water storage tank composed of an upper and lower bowl-shaped cylindrical body for storing hot water, 2 is a water supply pipe for supplying water to the lower part of the hot water storage tank 1, 3 is a hot water discharge pipe for discharging hot water from the upper part of the hot water storage tank 1, and 4 is branched from the water supply pipe 2 A water supply bypass pipe 5 is a hot water supply mixing valve for mixing hot water from the hot water supply pipe 3 and water from the water supply bypass pipe 4 at a hot water supply set temperature, and 6 is a hot water tap (not shown). ) Is a hot water supply flow counter for counting the flow rate of hot water flowing out of the hot water supply pipe 6, and 8 is a hot water temperature sensor for detecting the temperature of hot water supplied from the hot water supply pipe 6.

  Reference numeral 9 denotes a heat pump heating means as a heating means for heating hot water in the hot water storage tank 1, and refrigerant water heat for exchanging heat between the compressor 10 for compressing the refrigerant and the compressed high-temperature refrigerant and the hot water from the hot water storage tank 1. An exchanger 11, an expansion valve 12 for reducing the pressure of the refrigerant radiated by the refrigerant water heat exchanger 11, and an evaporator 13 for evaporating the low-temperature and low-pressure refrigerant are connected in a ring shape with a constant heating capacity. Since the hot water taken out from the lower part of the hot water storage tank 1 is heated and returned to the upper part of the hot water storage tank 1, the amount of hot water to be heated can be freely controlled.

  14 is a heating circulation circuit that circulates the hot water in the lower part of the hot water storage tank 1 to the refrigerant water heat exchanger 11 and returns it to the upper part of the hot water storage tank 1, 15 is a heating circulation pump provided in the middle of the heating circulation circuit 14, and 16 is refrigerant water heat exchange. An incoming water temperature sensor 17 for detecting the temperature of hot water entering the vessel 11, and a boiling temperature sensor 17 for detecting the temperature of the hot water heated by the refrigerant water heat exchanger 11.

  Reference numeral 18 denotes a hot water storage temperature sensor serving as a hot water storage amount detecting means for detecting the temperature of hot water in the hot water storage tank 1 and detecting the hot water storage amount. Here, the top hot water storage temperature sensor 18a is provided. There are provided four hot water storage temperature sensors 18, an upper hot water storage temperature sensor 18 b, an intermediate hot water storage temperature sensor 18 c, and a lower hot water storage temperature sensor 18 d, and the lower hot water storage temperature sensor 18 d detects the lowest temperature when hot water is supplied. And also serves as a feed water temperature detecting means for detecting a feed water temperature from the feed water pipe 2.

  Reference numeral 19 denotes a remote controller, which is a display unit 20 for displaying various information related to the hot water supply device (hot water set temperature, amount of remaining hot water, operating state of the hot water supply device, boiling mode, etc.), and an increase / decrease setting switch for setting the hot water supply set temperature. 21.

  Reference numeral 22 denotes a hot water supply flow rate sensor 7, a hot water supply temperature sensor 8, an incoming water temperature sensor 16, a boiling temperature sensor 17, and a hot water storage temperature sensor 18, and the hot water mixing valve 5, the compressor 10, the expansion valve 12, and the heating circulation pump. 15 is a control means that is communicably connected to the remote controller 19, and this control means 22 stores a program for controlling the operation of the hot water supply device in advance, as well as calculation, comparison, It has a memory function and a clock function.

  Reference numeral 23 denotes a rectangular frame that covers the hot water storage tank 1 and various pipes, the control means 22 and the like, and a base plate 24 that forms a bottom plate facing the bowl-shaped bottom of the hot water storage tank 1 is provided at the bottom. Recessed notches 25 are formed at three locations, and support legs 26 provided at three locations below the hot water storage tank 1 are provided through the notches 25.

  The support leg 26 is attached with a screw and a nut to a fixing part 28 which is fixed by welding the attachment part 27 at the tip to three places at equal intervals in the circumferential direction of the hot water storage tank 1 in advance. An intermediate portion following the attachment portion 27 is provided with a placement portion 29 formed in a bowl shape so as to place the bowl-shaped bottom portion of the hot water storage tank 1, and below the placement portion 29, a base plate 24 is provided. A base fixing portion 30 is provided for inserting the inside of the cutout portion 25 and fixing the base plate 24 with a screw, and an anchor bolt is driven into the bottom portion so that the side view of the support leg 26 has an inverted T shape. Thus, an anchor fixing portion 31 for fixing the support leg 26 to the installation surface is provided, and the entire instrument is fixed to the installation surface.

  Next, the support by the support legs 26 will be described. Now, the attachment portion 27 of the support legs 26 is attached to the fixing portion 28 of the hot water storage tank 1 with screws and nuts, so that the bowl-shaped bottom portion of the hot water storage tank 1 is placed on the mounting portion 29. If the base plate 24 that has been inserted through the notch 25 in advance is attached to the support leg 26, the support of the hot water storage tank 1 by the support leg 26 is completed. After the connection, the remaining surface of the frame body 23 is attached to complete the hot water storage type hot water supply apparatus.

  Thus, since the support leg 26 is comprised from the lower part of the hot water storage tank 1 to the bottom of the base plate 24 with the integrated support leg 26, since it is not divided | segmented on the way like the past, it is the number of parts. In addition, the assembly is easy and does not take time, and since it is an integrated type and does not have a dividing surface, it is not strongly deformed by shaking or vibration. Since the weight is received not only by the upper attachment portion 27 but also by the placement portion 29 for placing the bowl-shaped bottom portion of the hot water storage tank 1 that increases in weight when water enters, the load does not concentrate on the attachment portion 27. The hot water storage tank 1 can be firmly supported without being deformed even when a large earthquake occurs.

  Next, this hot water storage type hot water supply apparatus will be briefly described. The hot water is boiled and stored using cheap electric power at midnight, and used as hot water during the day or at night. The high-temperature water heated by circulating the low-temperature water at the bottom of the hot water storage tank 1 through the heating circulation circuit 14 to the refrigerant water heat exchanger 11 of the heating means 9 by driving the heating circulation pump 15 is supplied via the heating circulation circuit 14. The hot water is returned to the upper part of the hot water storage tank 1 and this heating is repeated sequentially to boil the hot water in the hot water storage tank 1 and store the hot water.

  Then, the hot water in the hot water storage tank 1 and the hot water in the hot water supply bypass pipe 4 are supplied with hot water at the hot water set temperature by the hot water supply mixing valve 5 by opening the hot water tap. Good hot water supply is performed as needed until the minimum hot water storage capacity is reached.

DESCRIPTION OF SYMBOLS 1 Hot water storage tank 2 Water supply pipe 3 Outlet pipe 9 Heat pump type heating means (heating means)
23 Frame 24 Base plate 25 Notch portion 26 Support leg 29 Placement portion

Claims (1)

A hot water storage tank composed of upper and lower bowl-shaped cylinders for storing hot water, a water supply pipe for supplying water to the hot water storage tank, a hot water supply pipe for supplying hot water from the hot water storage tank, heating means for heating the hot water in the hot water storage tank, and the hot water storage And a frame that covers the tank, wherein the base plate at the bottom of the frame is provided with a notch , a mounting portion attached to the peripheral surface of the hot water storage tank at the tip, and a hot water storage tank at the middle A mounting portion for mounting the bowl-shaped bottom portion, a base fixing portion for fixing the base plate, and an integrated support leg that forms an anchor fixing portion that is fixed to the installation surface by anchor bolts being driven into the bottom portion , A hot water storage type hot water supply apparatus attached to a lower part of a hot water storage tank and provided through the notch.

Images