JP6630916B2 - Hot water storage - Google Patents

Description

  The present invention relates to a hot water storage type hot water supply apparatus.

  Conventionally, in this type of hot water storage type water heater, a water supply pipe for supplying water to the hot water storage tank, a drain pipe for discharging water in the hot water storage tank to the outside, and a water supply pipe for heating the water in the hot water storage tank are sent to a heat source device. The heat source piping and the hot water storage tank are integrated via respective independent connection ports (for example, see Patent Document 1).

  FIG. 3 shows a conventional hot water storage type hot water supply device described in Patent Document 1. As shown in FIG. 3, the connection port for the water supply circuit of the water supply circuit 22, the connection port for the drain circuit of the drain circuit 24, and the connection port for the heat source of the heat source circuit 18 are each independently connected to the hot water storage tank 16. ing.

JP 2005-133933 A

  However, in the above-mentioned conventional configuration, since the opening of the hot water storage tank is required for each of the water supply pipe, the drainage pipe, and the heat source pipe, there is a problem that the number of processing steps and the processing cost of the hot water storage tank increase.

  In addition, since O-rings, fasteners, sockets, and the like are required for consolidating each circuit and the hot water storage tank, there are also problems such as an increase in material costs and assembly costs due to an increase in the number of parts, and a complicated circuit system configuration. .

  An object of the present invention is to solve the above-mentioned conventional problems, and to provide a hot-water storage type water heater that realizes improved usability at low cost.

In order to solve the conventional problem, a hot water storage type hot water supply apparatus of the present invention includes a hot water storage tank, a heat source device for heating water in the hot water storage tank, and a heat source passage for sending water in the hot water storage tank to the heat source device. Piping, after heating by the heat source device, if the temperature of the heated hot water is equal to or higher than a predetermined temperature, a three-way valve is switched to return the heated hot water to the upper portion of the hot water storage tank; In this case, the three-way valve is switched, a heat source return pipe that returns heated hot water to the lower part of the hot water storage tank, and a drain pipe that drains water in the hot water storage tank and is provided with a drain plug, provided, said heat source forward pipe, before Symbol heat source return under the pipe, said a drainage pipe, through the aggregation member, said being connected to the lower part of the hot water storage tank, the inside of the aggregation member, the heat source forward Flow path to piping side and front A partition for partitioning the flow path from the heat source return pipe is provided, and the partition communicates a flow path to the heat source going pipe and a flow path from the heat source return pipe. A communication portion is provided to allow the communication portion to be provided .

  This makes it possible to provide a hot water storage type water heater that achieves improved usability at low cost.

  ADVANTAGE OF THE INVENTION According to this invention, the hot-water storage type water heater which realized the improvement of usability at low cost can be provided.

Schematic diagram of a hot water storage type water heater in Embodiment 1 of the present invention (A) An external view of the aggregate member according to the first embodiment of the present invention (b) A cross-sectional view of FIG. Circuit diagram of conventional hot water storage type water heater

A first invention is a hot water storage tank, a heat source device for heating water in the hot water storage tank, a heat source outlet pipe for sending water in the hot water storage tank to the heat source device, and hot water heated by the heat source device and then heated. If the temperature is equal to or higher than a predetermined temperature, the three-way valve is switched, a heat source return upper pipe for returning heated hot water to the upper part of the hot water storage tank, and if the temperature is lower than a predetermined temperature, the three-way valve is switched and heated. and a heat source return under pipe for returning the lower portion of the hot water storage tank hot water, the draining of water in the hot water storage tank, and a water discharge pipe discharge valve is provided, and the heat source forward pipe, before Symbol heat source return under The pipe and the drainage pipe are connected to a lower portion of the hot water storage tank via a collecting member, and inside the collecting member, a flow path to the heat source going pipe side, and a heat source return lower pipe Compartment that separates the flow path from Together is provided, wherein the partition unit is in the heat source forward and the flow path of the pipe side, the hot-water storage type water heater gap is provided for communicating the flow path from the heat source return under the pipe, the hot water storage It is possible to provide a hot water supply type water heater that realizes a reduction in processing man-hours and processing costs of a tank, a reduction in material costs and assembly costs by reducing the number of parts, and simplification of a circuit system configuration.

In addition, the number of openings at the bottom of the hot water storage tank is reduced, which reduces the number of processing steps and processing costs for the hot water storage tank, reduces material and assembly costs by reducing the number of parts, and simplifies the circuit system configuration. Water heater can be provided.

Further, the present invention provides a hot-water storage type hot water supply device that realizes circulation of hot and cold water in the hot-water storage tank without mixing of water flowing from the heat-source going pipe and hot-water flowing from the heat-source returning pipe with an aggregation member. it can.

Further, if a communication part is provided in the partition part, when draining the water in the hot water storage tank, water in the heat source return lower pipe passes through the communication part and flows to the drain pipe, so that the heat source It is possible to provide a hot water storage type hot water supply device that realizes that residual water does not remain in the return pipe.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiment.

(Embodiment 1)
FIG. 1 is a circuit diagram of a hot water supply type hot water supply apparatus according to a first embodiment of the present invention, and its operation and operation will be described below.

  In FIG. 1, a hot water supply type hot water supply apparatus according to a first embodiment of the present invention includes a hot water storage tank 13, a water supply tank lower pipe 2 branched from a water supply pipe 1 for supplying water to the hot water storage tank 13, and the hot water storage tank. A drain pipe 5 for discharging water in the hot water storage tank 13 to the outside; a heat source pipe 8 for sending water from the hot water storage tank 13 from a lower portion of the hot water storage tank 13 to a heat pump cycle as a heat source device 9 by a circulation pump 7; If the temperature of the heated hot water is higher than a predetermined temperature after heating by the device 9, the three-way valve 10 is switched to return the heated hot water to the upper portion of the hot water storage tank 13, and a heat source return upper pipe 12; And a heat source return pipe 11 for switching the three-way valve 10 and returning hot water to the lower part of the hot water storage tank 13.

  In the hot water supply type water heater according to one embodiment of the present invention, the drainage pipe 5, the heat source going pipe 8, and the heat source return lower pipe 11 are integrated via an integrating member 6, and the hot water storage tank 13 is provided. By connecting to the lower part of the hot water storage tank 13, the number of openings at the lower part of the hot water storage tank 13 for connecting the pipes can be reduced only by the water supply pipe connection port 3 and the consolidating member 6, which is reduced with respect to the conventional technology. The processing man-hour and processing cost of the hot water storage tank 13 are reduced, the material cost and the assembly cost are reduced by reducing the number of parts, and the circuit system configuration is simplified.

  FIGS. 2A to 2C are diagrams showing the detailed shape of the aggregation member 6 connected to the lower part of the hot water storage tank 13.

  The heat source flow path 22 of the consolidating member 6 is a flow path to the heat source flow pipe 8 side, the heat source return flow path 23 is a flow path from the heat source return lower pipe 11, and the partition plate 24 is a heat source flow path. This is a partition section that partitions the path 22 and the heat source return flow path 23.

  The drain pipe 5 is connected to the drain pipe connection port 18, the heat source pipe 8 is connected to the heat source pipe connection port 19, and the heat source return pipe 11 is connected to the heat source return pipe connection port 20. The hot water storage tank lower connection port 21 is connected to a lower part of the hot water storage tank 13.

  Inside the collecting member 6 in which the drainage pipe 5, the heat source going pipe 8, and the heat source returning pipe 11 are gathered, a heat source going path 22 which is a flow path to the heat source going pipe 8 side, and the heat source returning pipe 11. By providing a partition plate 24 which is a partitioning section for partitioning the heat source return flow path 23 which is a flow path from the pipe 11, water flowing through the heat source flow path 22 and hot water flowing through the heat source return flow path 23 Are hardly mixed inside the collecting member 6, and the circulation of hot and cold water in the hot water storage tank 13 can be performed.

  Further, a communication part that communicates the heat source flow path 22 and the heat source return flow path 23 with the partition plate 24 that is a partition section that partitions the heat source flow path 22 and the heat source return flow path 23. By providing a gap of a certain area, the drain plug 4 provided in the drain pipe 5 is opened, and when the water in the hot water storage tank 13 is drained, the water in the heat source return pipe 11 is It flows through the heat source return flow path 23 through the heat source return lower pipe connection port 20 of the aggregation member 6, flows through the gap having a certain area provided in the partition plate 24, flows into the heat source flow path 22, and finally By flowing to the drainage pipe connection port 18 and draining from the drainage pipe 5, residual water can be prevented from remaining in the heat source return pipe 11 and the inside of the consolidating member 6.

  As described above, the hot water storage water heater according to the present invention can provide a hot water storage water heater that has improved usability at low cost, and can be applied to applications such as heat pump water heaters and fuel cells.

DESCRIPTION OF SYMBOLS 1 Water supply pipe 2 Water supply tank lower pipe 3 Water supply pipe connection port 4 Drain tap 5 Drain pipe 6 Consolidating member 7 Circulation pump 8 Heat source going pipe 9 Heat source device (heat pump cycle)
DESCRIPTION OF SYMBOLS 10 Three-way valve 11 Heat source return lower pipe 12 Heat source return upper pipe 13 Hot water storage tank 18 Drainage pipe connection port 19 Heat source going pipe connection port 20 Heat source return lower pipe connection port 21 Hot water storage tank lower connection port 22 Heat source flow path 23 Heat source return flow path 24 Partition plate (partition)

Claims (1)

Hot water storage tank,
A heat source device for heating water in the hot water storage tank,
A heat source going pipe for sending water in the hot water storage tank to the heat source device,
After heating by the heat source device, when the temperature of the heated hot water is equal to or higher than a predetermined temperature, a three-way valve is switched, and a heat source return upper pipe that returns the heated hot water to the upper portion of the hot water storage tank,
When the temperature is lower than a predetermined temperature, the three-way valve is switched, and a heat source return lower pipe that returns heated hot water to a lower portion of the hot water storage tank,
A drain pipe provided with a drain tap, which drains water in the hot water storage tank,
With
And said heat source forward pipe, before Symbol heat source return under the pipe, said a drainage pipe, through the aggregation member is connected to the lower portion of the hot water storage tank,
Inside the aggregating member, a flow path to the heat source going pipe side, and a partition section for partitioning the flow path from the heat source return pipe is provided,
A hot-water storage type hot-water supply device , wherein a communication part is provided in the partition part for communicating a flow path to the heat source going pipe and a flow path from the heat source return pipe .

Images