CN1637358B - Hot water storing and hot water supplying apparatus - Google Patents

Abstract

The invention relates to hot water storage type hot water supply device. To supply hot water to a bathtub at a stable temperature in a case of simultaneous supply of hot water to a faucet and to the bathtub by use of independent water mixing valves. When the start of hot water supply to the bathtub and the stop of hot water supply to the bathtub are determined during hot water supply to the faucet, the correction quantity of valve opening of the water mixing valve for hot water supply to the faucet is set based on a bath set temperature and a hot water supply set temperature , and the valve opening of the water mixing valve for hot water supply is corrected to the direction of suppressing a change in hot water supply temperature according to the timing of starting or stopping the hot water supply. According to this, hot water can be supplied to the faucet at a stable temperature.

Description

Hot water storing and hot water supplying apparatus

Technical field

Thereby the present invention relates to retain by the warm water that freeze cycle generates the water heating hot water storing and hot water supplying apparatus such as heat pump type hot water supply apparatus in the hot-water storage jar.

Background technology

The hot water that retains in the hot-water storage jar offers in the hot water storing and hot water supplying apparatus of bathing pool or tap, thereby the hot water that uses freeze cycle that the water heating is generated is persisted to heat pump type hot water generator (hereinafter referred to as " hot water storing and hot water supplying apparatus ") in the hot-water storage jar.

In such storage hot-water type hot water generator, comprise by compressor, cold-producing medium and water heat exchanger (condenser, be designated hereinafter simply as " heat exchanger "), evaporimeter, expansion valve etc. form the heat pump unit of freeze cycle, in the heat exchanger of heat pump unit, thereby water is heated formation warm water by between cold-producing medium and water, carrying out heat exchange.The warm water that generates is stored in the hot-water storage jar, supplies with hot water from this hot-water storage jar to bathing pool or tap.

At this moment, in hot water storing and hot water supplying apparatus, for example, retain about 60 ℃～85 ℃ temperature in the hot-water storage jar, when supplying with hot water, use mixing valve with hot water and water channel water in the ratio mixed hot water hold-up tank of regulation than higher hot water.

And, in hot water supply apparatus, directly or the temperature of indirect detection hot water and the temperature of water,, set the mixing ratio of hot water and water channel water based on the design temperature of the hot water of this temperature and supply, the aperture of control mixing valve is so that become the mixing ratio of setting.And then, in hot water supply apparatus, detecting the temperature of the hot water that mixes, the aperture (mixing ratio) of adjusting mixing valve is so that this temperature becomes design temperature.

But, in hot water storing and hot water supplying apparatus, a built-in mixing valve, generally will give the tap of bathing pool or a plurality of positions by the hot water supply that this mixing valve mixes, when hot water is used simultaneously in a plurality of positions, on function, make any one preferential, remaining hot water supply is stopped, and its standby is finished up to the hot water supply at preferential place and make.And when providing hot water simultaneously to a plurality of positions, design temperature also is one, the hot water that serviceability temperature is identical.That is, in hot water storing and hot water supplying apparatus, when hot water is supplied with in a plurality of positions, carry out the restriction of hot water supply restriction or temperature.

In recent years, expectation stops hot water supply restriction or temperature restriction, below proposes a kind of hot water storing and hot water supplying apparatus, and a plurality of mixing valves are set, can carry out the mixing ratio (for example, with reference to patent documentation 1, patent documentation 2) of hot water and water by each mixing valve.

Thus, can be to the different hot water of each supply design temperature of bathing pool and tap.

On the other hand, the control of mixing valve is following to be carried out: the temperature of the hot water that detect to mix, the feedback system of using the valve opening of adjusting mixing valve be so that this temperature becomes design temperature, thus, can supply with the hot water of design temperature to each of mixing valve.

But, for example, two mixing valves are set, can be when dividing other tap to supply with hot water with each mixing valve, when opening a tap and opening another tap simultaneously, perhaps from the state of opening two taps when closing a tap etc., the problem that produces fluctuation (hunting) in the temperature of the hot water that mixes is arranged.

That is, as shown in phantom in Figure 6, from the state of opening the tap that is connected respectively to two mixing valves when closing a tap, for the hot water supply temperature of supplying with the tap in the hot water sharply rise (the B portion of Fig. 6).And, exist when opening a tap and closing another tap, by opening the tap of closing, for sharply the descend problem of (the A portion of Fig. 6) of the hot water supply temperature of the tap in the hot water supply.

[patent documentation 1] spy opens the 2002-5523 communique

[patent documentation 2] spy opens the 2003-287284 communique

Summary of the invention

The present invention finishes in view of the above fact, its purpose is to propose a kind of hot water storing and hot water supplying apparatus, when a plurality of mixing valve is set, by changing the amount of the hot water that mixes by a mixing valve, inhibition can be carried out the hot water supply of stable temperature by the variation of temperature of the hot water of another mixing valve mixing.

In order to reach above-mentioned purpose, hot water storing and hot water supplying apparatus of the present invention comprises: the hot-water storage jar retains hot water; First and second mixing valve will mix with the regulation ratio from the hot water of hot-water storage jar supply and the water of being supplied with by water supply component respectively; And mixing valve control assembly, respectively for described first and second mixing valve, valve opening according to temperature control first and second mixing valve of the hot water of the mixing ratio of described hot water and described water and mixing, the mixing ratio of described hot water and described water is based on the setting hot water supply temperature of setting by the temperature setting portion part, it is characterized in that, this hot water storing and hot water supplying apparatus comprises: first detection part, detect the state that uses in described first mixing valve supply hot water; Second detection part in the detection of described first detection part to the hot water supply of using described first mixing valve, detects that the hot water supply of using described second mixing valve begins and hot water supply stops; Set parts detects that the hot water supply of using described second mixing valve begins and hot water supply when stopping at described second detection part, sets the correcting value of the valve opening of proofreading and correct described first mixing valve; And correcting unit, begin or hot water supply when stopping in hot water supply that using described second mixing valve, proofread and correct described first valve opening according to the correcting value that described set parts is set.

According to the present invention, be set at valve opening, thereby control so that carry out hot water supply based on design temperature, the temperature of hot water supply simultaneously becomes design temperature.At this moment, in the hot water supply of using first mixing valve, when the hot water supply of using second mixing valve begins or when using the hot water supply of second mixing valve to stop, the valve opening of proofreading and correct first mixing valve.

Thus, the hot water supply variation of temperature in the time of can suppressing to use first mixing valve to supply with hot water.

The invention of technical scheme 2 is characterised in that: described correcting unit changes the valve opening of first mixing valve from the flow of the hot water of described hot-water storage jar or from the direction of the variation of the flow of the water of described hot water supply parts in suppressing described first mixing valve, the variation of the flow of described hot water and the flow of water is because the hot water supply of described second mixing valve of use begins and hot water supply stops to cause.

According to the present invention, when using second mixing valve to begin hot water supply or when stopping hot water supply, proofread and correct first valve opening so that the variation of the amount of hot water that suppresses to mix and water by first mixing valve.

Thus, the hot water supply variation of temperature in the time of can suppressing to use first mixing valve to supply with hot water.

In such the present invention, described set parts also can be at least based on setting described correcting value for the hot water supply design temperature of described first mixing valve with for the hot water supply design temperature of described second mixing valve.And correcting value is except above-mentioned parameter, increases the temperature of the temperature of the hot water in the hot-water storage jar or water or be equivalent to the temperature of these temperature better.

On the other hand, the invention of technical scheme 4 is characterised in that: replace described second detection part, be included in that the hot water supply of using described second mixing valve begins and before hot water supply stops, judge the parts of inferring that the hot water supply of using second mixing valve begins and hot water supply stops, the hot water supply that described correcting unit is used described second mixing valve begins or hot water supply stops regularly the valve opening of proofreading and correct described first mixing valve.

According to the present invention, prediction uses the hot water supply of second mixing valve to begin and hot water supply stops.Thus, the valve opening that the hot water supply that can be used second mixing valve begins and hot water supply stops and proofreading and correct first mixing valve, so can suppress to use the hot water supply variation of temperature of first mixing valve reliably, and keep stable hot water supply temperature.

In such the present invention, described first mixing valve can be used for tap is supplied with hot water, and described second mixing valve can be used for injecting hot water to bathing pool.

Thus, can predict that the hot water supply of using second mixing valve begins and hot water supply stops, can supply with hot water to tap with stable temperature simultaneously.

As mentioned above,, in the hot water supply of first mixing valve, begin, or hot water supply can suppress to use first mixing valve to supply with the variation of temperature of the hot water of hot water when stopping in the hot water supply of second mixing valve according to the present invention.

And the hot water by pre-direction finding bathing pool etc. injects beginning and hot water and injects and stop, and in the hot water supply to tap, injects even bathing pool is carried out hot water, also can obtain the excellent results of the hot water supply of equilibrium temperature.

Description of drawings

Fig. 1 is the summary construction diagram of the circulating path of the hot water supply apparatus used in the present embodiment of expression.

Fig. 2 is the summary construction diagram of the control part of hot water supply apparatus.

Fig. 3 is the line chart of an example of correcting value of the mixing valve aperture of expression design temperature difference correspondence.

Fig. 4 is the flow chart of an example of control of the mixing valve of expression first embodiment.

Fig. 5 is the flow chart of an example of control of mixing valve that is used to supply with hot water of expression second embodiment.

Fig. 6 is the line chart of an example of the result of the test of expression hot water supply variation of temperature.

The specific embodiment

Below, explain an example of embodiments of the present invention with reference to accompanying drawing.

(first embodiment)

Fig. 1 represents in the embodiments of the present invention schematic configuration of the heat pump type hot water supply apparatus (hereinafter referred to as " hot water supply apparatus 10 ") used as hot water storing and hot water supplying apparatus.

This hot water supply apparatus 10 comprises heat pump unit 12 and hot water supply unit 14, can supply with hot water from hot water supply unit 14 to bathing pool 16 or a plurality of tap 18.

In heat pump unit 12, for example use CO as cold-producing medium ₂The compressor 20 by thereby the compression of this cold-producing medium being made as HTHP, make heating that refrigerant compressed and water carries out the cold-producing medium of heat exchange and water heat exchanger, form the freeze cycle that cold-producing medium is circulated with heat exchanger 22, electric expansion valve 24, the evaporimeter 26 that carries out the heat exchange between outdoor air and the cold-producing medium and storage heater 28 etc.

In hot water supply unit 14, the hot-water storage jar 30 that retains hot water is set.Connect feed pipe 32 from water channel water to hot water feed unit 14 that supply with on this hot-water storage jar 30.On this feed pipe 32 one way pressure-reducing valve 34 is set, thus, water channel water is depressurized to authorized pressure and is supplied to (water supply).

And, connect heat outputting water pipe 36 on the hot-water storage jar 30.This heat outputting water pipe 36 is branched with the fore-end of hot-water storage jar 30 opposition sides, be branched separately on mixing valve 38,40 is set.

Connect an end of bypass (by-pass) pipe 42 on each of this mixing valve 38,40, the other end of this bypass pipe 42 is connected to feed pipe 32 between hot-water storage jar 30 and pressure-reducing valve 34.

And, connect bathing pool hot water flow in pipes 44 on the mixing valve 38, connect tap hot water supply pipeline 46 on another mixing valve 40.Thus, hot water and water channel water in the mixed hot water hold-up tank 30, thus can carry out that hot water to bathing pool 16 injects or to the hot water supply of tap 18.In addition, connect to adjust the relief valve 48 of the pressure of hot water on the heat outputting water pipe 36, thereby at water during by the increased pressure in the superheated hot-water storage jar 30, this pressure is released by relief valve 48.

On the other hand, between heat pump unit 12 and hot-water storage jar 30, circulation road 50 is set.Circulation road 50 is by outlet, the bottom pipe 50A of heat exchanger 22 that connects heat pump unit 12 and hot-water storage jar 30, and the incoming road pipe 50B formation that connects the upper end of heat exchanger 22 and hot-water storage jar 30.

And, in the circulation road 50, on the pipe 50A of outlet circulating pump 52 is set, on the incoming road pipe 50B flow control valve 54 is set.

Thus, in the hot water supply apparatus 10,,, thereby supply to the heat exchanger 22 of heat pump unit 12 from the bottom draw hot water of hot-water storage jar 30 by circulating pump 52 action.And, carry out heat exchange in heat exchanger 22 and between the cold-producing medium and heated hot water returns hot-water storage jar 30.At this moment, by the hot water amount by flow control valve 54 circulations, the hot water that is heated to set point of temperature by heat exchanger 22 turns back to hot-water storage jar 30.

On the other hand, as shown in Figure 2, control substrate 56 is set in the heat pump unit 12.Comprise not shown microcomputer on this control substrate 56, and the controller 58 of the action of control heat pump unit 12 is set.

And, as Fig. 1 and shown in Figure 2, the outside air temperature sensor 60 of the temperature of the air that for example will be used for the cooling of evaporimeter 26 and be attracted as the outside air temperature detection is set in the heat pump unit 12.

As shown in Figure 2, this outside air temperature sensor 60 is connected to controller 58.In the controller 58,, control the ability (for example operating frequency of compressor) of compressor 20 and the aperture of electric expansion valve 24 based on by the outside air temperature of outside air temperature sensor 60 detections and the target boiling temperature of setting in hot water supply unit 14 sides.That is the heating efficiency of control heat pump unit 12.

Control substrate 62 is set in the hot water supply unit 14.Comprise not shown microcomputer on this control substrate 62, and the controller 64 of the action of control hot water supply unit 14 is set.

But the controller 58 of heat pump unit 12 and the controller 64 of hot water supply unit 14 are connected by two-way communications ground by order wire 66, and controller 58 is based on the running of the signal controlling heat pump unit 12 that comes self-controller 64/stop.And controller 58 will output to controller 64 by the outside air temperature of outside air temperature sensor 60 detections, the operating frequency (heating efficiency of the heat exchanger 22 of heat pump unit 12) of compressor 20 via order wire 66.

Connect pump motor 76 and the flow control valve 54 that drives circulating pump 52 on the controller 64, the action of control circulating pump 52 and the valve opening of flow control valve 54.

And as shown in Figure 1, in heat pump unit 12, the outlet side of heat exchanger 22 is provided with temperature sensor 68.As shown in Figure 2, this temperature sensor 68 is connected to controller 64, and thus, controller 64 can carry out by heat exchanger 22 heating and return the hot water temperature's of hot-water storage jar 30 the detection of boiling temperature.

On the other hand, bathroom remote controller 70 and kitchen remote controller 72 are set in the hot water supply apparatus 10, this bathroom remote controller 70 and kitchen remote controller 72 are connected to the controller 64 of hot water supply unit 14.

Use bathroom remote controller 70 to kitchen remote controller 72 in the hot water supply apparatus 10, can turn round/shut-down operation, the setting of hot water supply temperature, bath temperature, based on the various running operations such as setting of the operation mode of the use amount of hot water.

In this hot water supply apparatus 10, for example, the operation mode of the use amount setting " abundance " of cooperation hot water, three patterns of " common " and " saving ", the operation by bathroom remote controller 70 or kitchen remote controller 72 is set at certain operation mode.In addition, " common " for presetting standard volume, " abundance " is more than the use amount of " common ", and " saving " lacked than the use amount of " common ".

Controller 64 is according to this operation mode and outside air temperature target setting boiling temperature.This target boiling temperature is set in advance according to operation mode and outside air temperature, and storage is for the table (omitting diagram) of the target boiling temperature of operation mode and outdoor air in the controller 64, and controller 64 is according to this table target setting boiling temperature.

And, in the controller 58 that is provided with in the heat pump unit 12, for example, storage preestablishes the table of the aperture of the operating frequency of outside air temperature and the pairing compressor 20 of target boiling temperature and electric expansion valve 26, controller 58 uses this table, set the operating frequency of compressor 20 and the valve opening of electric expansion valve 26 according to outside air temperature and target boiling temperature, and carry out based on the control of setting.

And, controller 64 is judged the hot water heating efficiency of heat pump unit 12 (heat exchanger 22) according to the operating frequency of compressor 20, according to this heating efficiency and outside air temperature and target boiling temperature, the hot water flow in prediction loop path 50, when circulating pump 52 actions, set the aperture of flow control valve 54 to obtain predicted flow rate according to the output of circulating pump 52.

Controller 64 is by making circulating pump 52 actions according to this setting, open flow control valve 54 simultaneously, the hot water that is heated to the target boiling temperature is remained in the hot-water storage jar 30, at this moment, controller 64 is adjusted the aperture of flow control valve 54 according to the temperature (boiling temperature) by temperature sensor 68 detected hot water.

But, as shown in Figure 1, two mixing valves 38,40 are set in the hot water supply apparatus 10, connect bathing pool hot water flow in pipes 44 on the mixing valve 38, connect tap hot water supply pipeline 46 on the mixing valve 40.Thus, in hot water supply apparatus 10, carry out hot water via mixing valve 38 to bathing pool 16 and inject, carry out hot water supply via 40 pairs of taps of mixing valve 18.

As shown in Figure 2, connect mixing valve 38,40 on the controller 64.Controller 64 will be made as the temperature of water channel water by the outside air temperature that outdoor temperature sensor 60 detects, temperature according to the hot water that retains in the temperature of water channel water and the hot-water storage jar 30, set the aperture of mixing valve 38,40 respectively, so that obtain the hot water of design temperature (hot water supply temperature and bath temperature).In addition, in the present embodiment, the outside air temperature that outdoor temperature sensor 60 detects is used in explanation as the temperature of water channel water, single temperature sensor that also can be provided for detecting the temperature of water channel water in addition.

And, as shown in Figure 1, be provided with on the primary side of mixing valve 38,40 (hot water supply side) temperature of the hot water that detect to mix supply hot water temperature sensor 80A, 80B (below, be generically and collectively referred to as " supplying with hot water temperature's sensor 80 "), and flowmeter counter 82A, 82B (following general name " flowmeter counter 82 ").And, in the bathing pool hot water flow in pipes 44 magnetic valve 84 is set, undertaken the hot water of bathing pool 16 is injected by opening this magnetic valve 84.

As shown in Figure 2, supply with hot water temperature's sensor 80A, 80B, flowmeter counter 82A, 82B and magnetic valve 84 and be connected to controller 64.

Controller 64 is regulated the aperture of mixing valve 38,40 according to the supply hot water temperature who is detected by hot water temperature's sensor 80A, 80B.That is, use the detected temperatures of supplying with hot water temperature's sensor 80A, 80B, carry out the FEEDBACK CONTROL of mixing valve 38,40.

And, as flowmeter counter, the impeller that the flow of hot water rotates when using for example according to hot water flow, controller 64 use traffic counter 82A, 82B carry out the counting of use amount etc., detect tap 18 simultaneously and whether open, whether bathing pool 16 is carried out hot water and inject.

In addition, the hot water of bathing pool 16 is injected the action that also can substitute flowmeter counter 82A and detect magnetic valve 84, but in the present embodiment, describe as a routine use traffic counter 82A.

Can use the mixing valve that valve opening changes by for example stepper motor driving as mixing valve 38,40.

Controller 64 is from bypass pipe 42 sides (low temperature side) when seeing, with mixing valve 38,40 standard-sized sheets to being divided into for example 1000 parts between the full cut-off, set the step number of valve opening with 0 (full cut-off)～1000 (standard-sized sheet), by driving mixing valve 38,40 with the step number of setting, mixing valve 38,40 becomes the setting aperture.

On the other hand, the temperature (supplying with the hot water temperature) of the hot water that is mixed by mixing valve 38,40 is determined by the temperature of the hot water of hot-water storage jar 30 sides (following be " heat outputting coolant-temperature gage ") and the temperature (water temperature) and the mixing ratio (aperture of mixing valve 38,40) of water, changes the hot water supply temperature by the change mixing ratio.Thus, mixing ratio is replaced with the aperture of mixing valve 38,40, and the hot water supply temperature is replaced with target temperature.

Thus, can obtain the figure of aperture (driving the step number) for the mixing valve 38,40 of design temperature to each of heat outputting coolant-temperature gage, water temperature.Controller 64 drives mixing valve 38,40 according to this step number.By using such figure,, can easily obtain the valve opening of mixing valve 38,40 according to heat outputting coolant-temperature gage, outside air temperature (water temperature), design temperature.

In addition, the heat outputting coolant-temperature gage can use the boiling temperature that is detected by temperature sensor 68, and the top that is preferably in the hot-water storage jar 30 of heat outputting water pipe 36 connections is provided with the heat outputting water temperature sensor, and is detected by this heat outputting water temperature sensor.

And, will being divided into summer, winter and middle season (spring and autumn) in 1 year, to setting figure during each, also can realize simplifying respectively for the aperture of the mixing valve 38,40 of design temperature.

On the other hand, the setting (following is the bathroom design temperature) of the bath temperature of the supply hot water temperature's of mixing valve 40 sides setting (following for supply with hot water design temperature) and mixing valve 38 sides not simultaneously, the valve opening of mixing valve 38,40 and mixing ratio be difference also.Therefore, when for example opening 84 pairs of bathing pools of magnetic valve, 16 injection hot water, after tap 18 was opened, in each of mixing valve 38,40, the flow equilibrium of hot water and water destroyed.

Supply with in the hot water in the low side of design temperature especially, during the hot water supply of the side that design temperature is high (for example hot water injection) beginning, descend simultaneously from the hot water amount of the low side of 30 pairs of design temperatures of hot-water storage jar that the water yield increases, so the temperature of the low side of design temperature sharply descends.

Here, in controller 64, use traffic counter 82, whether detect on one side in each of mixing valve 38,40 supply with hot water, whether begun hot water supply, whether hot water supply stops, supply with in the hot water at one that uses mixing valve 38 or mixing valve 40 on one side, when beginning or stopping another hot water supply, proofread and correct the valve opening of mixing valve 38 or the mixing valve 40 of supplying with hot water.

The correcting value of this moment is preferably decided by the bathing pool temperature of mixing valve 38 sides, supply hot water design temperature, heat outputting coolant-temperature gage and the water temperature of mixing valve 40 sides, but uses bathroom design temperature and hot water supply design temperature to set correcting value at least.And the correction of valve opening is carried out to the direction of the destruction of the balance that suppresses hot water flow or discharge between mixing valve 38,40.

Expression is based on an example of the correcting value of the valve opening of the mixing valve 38,40 of the temperature difference (design temperature is poor) of design temperature among Fig. 3.In hot water supply apparatus 10, summer, winter and middle season (spring and autumn) will be divided into as an example according to the temperature of heat outputting coolant-temperature gage and water in 1 year, according to the temperature difference (design temperature is poor) of bathroom design temperature and hot water design temperature, set the correcting value (the driving step number of correction) of the valve opening of mixing valve 38,40.

In addition, among Fig. 3, represent the centre correcting value in season, represent correcting value, represent the correcting value in summer simultaneously with a chain-dotted line of downside with two chain-dotted lines of centre upside in season with solid line.

Store figure in the controller 64 in advance, be equivalent to any one season, ask the correcting value (driving the step number) of the aperture of mixing valve 38,40 simultaneously according to design temperature based on this correcting value.

In the hot water supply apparatus 10 of Gou Chenging, when the bathroom design temperature is set, set the valve opening of mixing valve 38 according to this bathroom design temperature, heat outputting coolant-temperature gage and water temperature like this.And, in the hot water supply apparatus 10, when supply hot water design temperature is set, supply with the valve opening of hot water design temperature, heat outputting coolant-temperature gage, coolant-temperature gage setting mixing valve 40 according to this.Afterwards, control in the hot water supply apparatus 10 so that become each the valve opening of setting mixing valve 38,40.

Thus, when magnetic valve 84 is opened, with the bathing pool design temperature bathing pool 16 is carried out hot water and inject, and, by the tap 18 of fetching boiling water, carry out hot water supply to supply with the hot water design temperature.At this moment, the controller 64 that is provided with in the hot water supply apparatus 10 passes through by the FEEDBACK CONTROL based on the supply hot water temperature who is detected by supply hot water temperature sensor 80A, 80B, adjust the valve opening of mixing valve 38,40, keep with the hot water of bathroom design temperature and inject bathing pool 16, and to supply with the hot water supply of hot water design temperature from tap 18.

Here, with reference to the control of the mixing valve 38,40 of Fig. 4 diagrammatic illustration first embodiment.In this flow chart, carrying out the control of the mixing valve 38,40 set based on the aperture of described mixing valve 38,40, walk abreast with this control simultaneously and carries out, to each same execution of mixing valve 38,40, here, is that example describes with mixing valve 38.

In this flow chart, whether flowmeter counter 82 (flowmeter counter 82A) has been confirmed to have begun to use the hot water supply (hot water injections) of mixing valve 38, has begun hot water and injects and be performed thereby detect, and stops by stopping the hot water injection.

Here, beginning hot water injects and when being performed, in initial step 100, confirms whether detect the hot water supply of bringing into use the mixing valve 40 that is provided with simultaneously with mixing valve 38 by flowmeter counter (flowmeter counter 82B).

Here, the hot water of the bathing pool 16 that uses mixing valve 38 is injected,, in step 100, judged certainly and move to step 102 by the tap 18 of fetching boiling water.

In this step 102, relatively the bathroom design temperature of mixing valve 38 sides and the supply hot water design temperature of mixing valve 40 sides in next procedure 104, confirm whether the bathroom design temperature is identical with supply hot water design temperature.And in step 106, confirm whether the bathroom design temperature is high.

Here,,, when step 104 is negated to judge, in step 106, judged certainly and moved to step 108 than supplying with the hot water design temperature when high at the bathroom design temperature.

In this step 108, according to the bathroom design temperature with supply with the correcting value that the hot water temperature sets the valve opening of mixing valve 38.In next procedure 110, the correcting value according to the valve opening of setting narrows down the valve opening of mixing valve 38, and the change valve opening is so that the amount of the water that mixes increases.

Thus, when mixing valve 40 is opened, because valve opening difference between the mixing valve 38,40 reduces so suppress the amount of the water of inflow mixing valve 38 sides.

In contrast, when bathroom design temperature ratio supply hot water design temperature is low, thereby negate to judge to move to step 112 in step 106, set the correcting value of the valve opening of mixing valve 38 according to bathroom design temperature and supply hot water design temperature.Afterwards, in step 114, the valve opening of mixing valve 38 is broadened according to the correcting value of the valve opening of setting, the change valve opening so that the water yield of mixing reduce.

Thus, when mixing valve 40 is opened, because valve opening difference between the mixing valve 38,40, so suppress to flow into hot water amount's minimizing of mixing valve 38 sides.

Mixing valve 38 is changed by such valve opening, and the mixing ratio of temporary variations hot water and water by according to carrying out FEEDBACK CONTROL by the supply hot water temperature who supplies with hot water temperature's sensor 80 (80A) detection, is returned the valve opening corresponding to the bathroom design temperature.

On the other hand, in step 116, confirm whether to stop supply hot water injecting hot water from mixing valve 40 sides.Here, when injecting hot water tap 18 and be closed, in step 116, judged certainly and moved to step 118.

In this step 118, same with step 102, compare the bathroom design temperature and supply with the hot water temperature.And in step 120, confirm whether the bathroom design temperature is identical with supply hot water design temperature, in step 122, confirm whether the bathroom design temperature is high.

Here, at the bathroom design temperature than supplying with the hot water temperature when high, in step 120 negated judge after, in step 122, judged certainly and moved to step 124.In this step 124, according to the correcting value of bathroom design temperature with the valve opening of supplying with hot water design temperature setting mixing valve 38.In next procedure 126, according to the correcting value of the valve opening of setting the valve opening of mixing valve 38 is broadened, the change valve opening so that the water yield of mixing reduce.

Thus, when tap 18 is closed, because the valve opening difference between the mixing valve 38,40 increases so suppress the amount of the water of inflow mixing valve 38 sides.

In contrast,, in step 122 negate and judge and move to step 128 than supplying with the hot water design temperature when low at the bathroom design temperature.In this step 128, according to the correcting value of bathroom design temperature with the valve opening of supplying with hot water design temperature setting mixing valve 38.Afterwards, in step 130, the valve opening of mixing valve 38 is narrowed down according to the correcting value of the valve opening of setting, the change valve opening so that the water yield of mixing increase.

Thus, when tap 18 is closed, suppress to flow into hot water amount's increase of mixing valve 38 sides.

Like this, use in one the hot water supply of mixing valve 38,40, when another of mixing valve 38,40 is opened, by proofreading and correct valve opening according to the design temperature difference, according to the difference of the valve opening between the mixing valve 38,40, the variations in temperature that can suppress to supply with the hot water that (injects hot water) in the hot water is big.

That is, poor according to the design temperature of supplying with between hot water design temperature and the bathroom design temperature, determine design temperature shown in Figure 3 poor-characteristic of mixing valve aperture correcting value.In addition, design temperature is poor-and mixing valve aperture correcting value is because according to season different water temperatures and boiling temperature difference, so for example, spring and autumn are made as middle season (representing with solid line in Fig. 3), for this centre season, the design temperature of adjusting and set summer (representing with a chain-dotted line) and winter (representing with two chain-dotted lines) in Fig. 3 in Fig. 3 is poor-mixing valve aperture correcting value.

According to this design temperature poor-characteristic and the design temperature of mixing valve aperture correcting value is poor, can obtain being used for supplying with the mixing valve aperture correcting value (Δ Y) that the hot water temperature is made as design temperature.

At this moment, increase Δ Y (+Δ Y) by proofreading and correct the mixing valve aperture with the step number, the water yield of mixing reduces, and the hot water amount increases, and rises so supply with the hot water temperature.

Thus, begin hot water supply at injection hot water, or hot water supply is when stopping, difference (difference of the valve opening of mixing valve 38,40) by bathroom design temperature and supply hot water design temperature, the hot water amount who injects hot water reduces, or the water yield by to the correction for direction valve opening of opening valve, can suppress the variation of the mixing ratio of hot water and water when increasing.

And, reducing Δ Y (Δ Y) by proofreading and correct the mixing valve aperture with the step number, the hot water amount of mixing reduces, and the water yield increases, and descends so supply with the hot water temperature.

Thus, begin hot water supply at injection hot water, or hot water supply is when stopping, difference (difference of the valve opening of mixing valve 38,40) by bathroom design temperature and supply hot water design temperature, the water yield of injecting hot water reduces, or the hot water amount is when increasing, and the correction for direction valve opening by to shut off valve can suppress the variation of the mixing ratio of hot water and water.

Thereby, by according to the bathroom design temperature and supply with the suitable setting of hot water design temperature will be as the Δ Y of correcting value, even beginning is supplied with hot water (or supply with hot water inject hot water) injecting hot water, the hot water temperature (or hot water temperature of supply hot water) who also suppresses to inject hot water changes, and can carry out hot water with stable temperature and inject or hot water supply.

In addition, in flow chart shown in Figure 4, consideration is the situation of bathroom design temperature when supplying with the hot water design temperature and changed in supplying with hot water, in one hot water supply using mixing valve 38,40, when another the hot water supply of using mixing valve 38,40 begins and hot water supply set correcting value when stopping, but during when supplying with the hot water design temperature and be set or by change, this correcting value also can preestablish, and uses this setting at the bathroom design temperature.

The correcting value of the valve opening of mixing valve 38,40 can and be supplied with the hot water design temperature with the bathroom design temperature at least and determine as parameter, preferably bathroom design temperature, supply hot water design temperature, heat outputting coolant-temperature gage and coolant-temperature gage can be determined as parameter, so at a certain time interval, or when parameter changes at every turn, preestablish, and also can according to the valve opening of the correcting value correction mixing valve of setting 38,40.

And, when simpler setting correcting value, also can be set at the bathroom design temperature and supply with the valve opening of hot water design temperature when identical.

On the other hand, in the first embodiment, use two mixing valves 38,40 to be illustrated, but between more than or equal to three mixing valves, also can use.At this moment, when the hot water supply of having used any mixing valve is begun, the also difference of the design temperature between basis and this mixing valve at least, promptly the difference of valve opening is carried out.

(second embodiment)

Second embodiment of the present invention then is described.In addition, the basic structure of second embodiment is identical with described first embodiment, gives identical symbol for the parts identical with first embodiment and describe in second embodiment.

In described first embodiment, detect use traffic counter 82 and use mixing valve 38,40 hot water supply beginning and stop, but in second embodiment, in the hot water supply from tap 18, by opening and closing the beginning that the hot water to bathing pool 16 that magnetic valve 84 causes injects and stopping, preventing to supply with the hot water temperature and change.

At this moment, in second embodiment, prediction stops the hot water injection or the hot water injection of bathing pool 16, cooperates hot water injection or hot water to inject the valve opening of the correction of timing mixing valve 40 that stops.

Promptly, controller 84 is by being injected by the operating and setting of bathroom remote controller 70 or kitchen remote controller 72 hot water to bathing pool 16, open magnetic valve 84 and carry out the hot water of bathing pool 16 is injected, close magnetic valve 84 and stop to inject hot water when bathing pool 16 is injected the hot water of ormal weights.

Here, controller 64 can be predicted the beginning hot water injection of having used mixing valve 38 and stop to inject hot water, should predict based on the result, by proofreading and correct the valve opening of mixing valve 40, can reliably prevent from the supply hot water temperature of tap 18 is changed.

Among Fig. 5 prediction to the hot water of the bathing pool 16 that used mixing valve 38 inject, hot water injects and stops, summary represents that the valve opening of the mixing valve 40 that carries out proofreaies and correct simultaneously.This flow chart begins to supply with hot water to tap 18 and is performed by being detected by flowmeter counter 82B, is closed and hot water supply stops to stop by tap 18.

Begin to supply with hot water and when being performed, in initial step 140, confirm whether (prediction) carries out the hot water injection to bathing pool 16.

Here, whether use the injection hot water operation of bathroom remote controller 70 or kitchen remote controller 72, when for example judging whether to inject hot water, in step 140, judge certainly and move to step 142 according to the surplus of the hot water in the bathing pool 16.

In this step 142, compare the bathroom design temperature and supply with the hot water design temperature.Afterwards, in step 144, confirm whether the bathroom design temperature is identical with supply hot water design temperature (valve opening of the valve opening of mixing valve 40 and mixing valve 38), whether in step 146, it is lower than bathroom design temperature to confirm to supply with the hot water design temperature.

Here, supplying with the hot water design temperature when lower, when step 144 negates judgement, in step 146, judge certainly and move to step 148 than bathroom design temperature.In this step 148,, set the correcting value of the valve opening of mixing valve 40 according to supplying with hot water design temperature and bathroom design temperature.Afterwards, in step 150, cooperate and to open magnetic valve 84 and to begin the timing that the hot water to bathing pool 16 injects, according to correcting value the valve opening of mixing valve 40 is broadened, so that the hot water amount who in mixing valve 40, mixes increase with water.

Thus, when beginning the hot water of bathing pool 16 injected, because it is different with bathroom design temperature (valve opening of the valve opening of mixing valve 38 and mixing valve 40) to supply with the hot water design temperature, reduce so flow into the hot water amount of mixing valve 40 sides, can prevent that the hot water temperature who tap 18 is supplied with hot water from descending.

In contrast, than supplying with the hot water design temperature when low, negate to judge and move to step 152 at the bathroom design temperature in step 146, set the correcting value of the valve opening of mixing valve 40 according to the temperature difference of supplying with hot water design temperature and bathroom design temperature.Afterwards, in step 154, cooperate and to open magnetic valve 84 and to begin the timing that the hot water to bathing pool 16 injects, according to correcting value the valve opening of mixing valve 40 is narrowed down, so that the hot water amount who mixes with water in the mixing valve 40 minimizing.

Thus, when beginning the hot water of bathing pool 16 injected, the amount that can suppress to flow into the hot water of mixing valve 40 sides increases, and the hot water temperature that tap 18 is supplied with hot water is risen.

On the other hand, in step 156, confirm that the hot water that whether stops bathing pool 16 injects (prediction).That is, confirm whether the hot water of bathing pool 16 reaches ormal weight, whether stop the operation that hot water injects with bathroom remote controller 70 or kitchen remote controller 72.

Here, prediction is injected when stopping the hot water in bathroom 16, in step 156 affirmative determination and move to step 158.In this step 158, relatively supply with hot water temperature and bathroom design temperature, whether in step 160, it is identical with the bathroom design temperature to confirm to supply with the hot water design temperature, in step 162, confirms that whether the bathroom design temperature is than supplying with hot water design temperature height.

Here, at the bathroom design temperature than supplying with the hot water design temperature when high, in step 160 negate judge after, judge certainly and move to step 164 in step 162.In this step 164, according to the correcting value of bathroom design temperature with the valve opening of supplying with hot water design temperature setting mixing valve 38.

Afterwards, in step 166, in order to stop that the hot water of bathing pool 16 is injected and cooperates the timing of closing magnetic valve 84, according to the correcting value of the valve opening of setting the valve opening of mixing valve 40 is narrowed down, so that the water yield of being mixed by mixing valve 40 reduces.

Thus, the hot water of bathing pool 16 is injected when stopping, the hot water amount that can suppress to flow into mixing valve 40 sides increases the situation that the supply hot water temperature of tap 18 rises.

In contrast, than supplying with the hot water design temperature when low, negate to judge and move to step 168 at the bathroom design temperature in step 162, according to the bathroom design temperature with supply with the correcting value that the hot water design temperature is set the valve opening of mixing valve 38.Afterwards, in step 170, cooperate hot water to inject the timing that stops, cooperating correcting value that the aperture of mixing valve 40 is broadened, so that the hot water amount who is mixed by mixing valve 40 increases to bathing pool 16.

Thus, when stopping the hot water of bathing pool 16 injected, can suppress tap 18 is supplied with the situation that the hot water temperature of hot water reduces.

Like this, in one hot water supply using mixing valve 38,40, when another of mixing valve 38,40 is opened, by proofreading and correct valve opening according to the design temperature difference, according to the difference of the valve opening between the mixing valve 38,40, the hot water temperature that can suppress (hot water injection) in the hot water supply changes situation greatly.

Be illustrated in the bathroom design temperature among Fig. 6 than supplying with the hot water temperature when high, carrying out hot water to bathing pool 16 when injecting, by the variation of supplying with the supply hot water temperature that hot water temperature's sensor 80B detects.At this moment, the dotted line of Fig. 6 is represented only to carry out when using the valve opening of supplying with hot water temperature's sensor 80B FEEDBACK CONTROL mixing valve 40, solid line represents to predict simultaneously that with FEEDBACK CONTROL hot water injects beginning and stops, and when proofreading and correct valve opening according to the difference of supplying with hot water design temperature and bathroom design temperature (present embodiment).

As shown in phantom in Figure 6, when only carrying out the valve opening of mixing valve 40, when hot water injects beginning, supply with the hot water temperature and just begun to inject hot water between the several seconds afterwards low stable (the A part of Fig. 6) by FEEDBACK CONTROL.And hot water injects when stopping, supply hot water temperature high stable (the B part of Fig. 6) between the several seconds after the hot water injection has just stopped.In addition, become time regularly of control next time between the several seconds separately up to feedback generation.

In contrast, shown in solid line among Fig. 6, prediction begins to inject hot water and stops to inject hot water, and the valve opening by cooperation begins to inject hot water and stops to inject hot water correction of timing mixing valve 40 can suppress to supply with hot water temperature's variation reliably.

Like this, in supplying with hot water, carry out hot water to bathing pool 16 when injecting, prediction begins to inject hot water and stops to inject hot water, begin the timing of injecting hot water and stopping to inject hot water by cooperation, proofread and correct the valve opening of mixing valve 40, even it is different with bath temperature to supply with the hot water design temperature, also can supply with the hot water of stable temperature to tap 18.

In addition, in second embodiment, supply hot water temperature's the variation of mixing valve 40 sides that has suppressed for measurable beginning and stopped injecting the mixing valve 38 of hot water, if but could predict the timing supplying with hot water and stop to supply with hot water of beginning of having used mixing valve 40, would then go for the control that the hot water of bathing pool 16 injects the mixing valve 38 that uses.

And, if can predict mixing valve 40 sides begin supply with hot water and stop to supply with hot water, then when using a plurality of mixing valves that different taps is supplied with hot water, go for the control of the valve opening between a plurality of mixing valves.

In addition, in Shuo Ming the present embodiment, be that example is illustrated more than, if go for the heat pump type hot water supply apparatus of any mechanism but the present invention is provided with a plurality of mixing valves with heat pump type hot water supply apparatus 10.And, the invention is not restricted to heat pump type hot water supply apparatus, also go for supplying with the hot water storing and hot water supplying apparatus of the arbitrary structures of the hot water of depositing stream the hot-water storage jar from a plurality of mixing valves.

Claims (4)

1. hot water storing and hot water supplying apparatus comprises:

The hot-water storage jar retains hot water;

First mixing valve and second mixing valve mix respectively from the hot water of described hot-water storage jar supply and the water of being supplied with by water supply component with the ratio of regulation; And

The mixing valve control assembly, for each of described first mixing valve and second mixing valve, temperature according to the hot water of the mixing ratio of the described hot water of supplying with the hot water temperature based on the setting of setting by the temperature setting portion part and described water and mixing, control the valve opening of first mixing valve and second mixing valve, it is characterized in that

This hot water storing and hot water supplying apparatus comprises:

First detection part detects the state that uses described first mixing valve to supply with in the hot water;

Second detection part, when described first detection part detects the hot water supply of using described first mixing valve, to use described second mixing valve begin to supply with hot water and stop to supply with hot water detect;

Set parts, described second detection part detect use described second mixing valve begin supply with hot water and when stopping to supply with hot water, set the correcting value of the valve opening that is used to proofread and correct described first mixing valve; And

Correcting unit, use described second mixing valve begin to supply with hot water the time or when stopping to supply with hot water, proofread and correct described first valve opening according to the correcting value that described set parts is set,

Described correcting unit changes the valve opening of first mixing valve from the hot water flow of described hot-water storage jar or from the direction of the variation of the discharge of described water supply component in suppressing described first mixing valve, the changes in flow rate of described hot water and water be by use described second mixing valve begin to supply with hot water and stop to supply with hot water cause.

2. hot water storing and hot water supplying apparatus as claimed in claim 1 is characterized in that:

Described set parts is at least according to setting described correcting value for the supply hot water design temperature of described first mixing valve with for the supply hot water design temperature of described second mixing valve.

3. hot water storing and hot water supplying apparatus as claimed in claim 1 is characterized in that:

This hot water storing and hot water supplying apparatus comprises infers parts, substitute described second detection part, use described second mixing valve begin supply with hot water and stop to supply with hot water before, judge to use second mixing valve begin supply with hot water and stop to supply with hot water, described correcting unit according to use described second mixing valve begin supply with hot water or stop to supply with hot water regularly, the valve opening of proofreading and correct described first mixing valve.

4. hot water storing and hot water supplying apparatus as claimed in claim 1 is characterized in that:

Described first mixing valve is used for tap is supplied with hot water, and described second mixing valve is used for bathing pool is injected hot water.

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