CN104048404A - Water heater - Google Patents
Water heater Download PDFInfo
- Publication number
- CN104048404A CN104048404A CN201410084564.8A CN201410084564A CN104048404A CN 104048404 A CN104048404 A CN 104048404A CN 201410084564 A CN201410084564 A CN 201410084564A CN 104048404 A CN104048404 A CN 104048404A
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- Prior art keywords
- water
- quality adjustment
- flow path
- adjustment part
- water quality
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/16—Arrangements for water drainage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/0092—Devices for preventing or removing corrosion, slime or scale
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A water heater comprising: a hot water tank 3; a water supply pipe 12; an entering-water pipe 18; a heating device 10; and an outgoing-hot water pipe 19, wherein the entering-water pipe 18 or the water supply pipe 12 includes a main flow path 18a and an auxiliary flow path 18b which splits flow of the main flow path 18a, the main flow path 18a includes a water quality adjusting portion 23, which reforms the inflow water into water having quality in which scale is less prone to be generated, and which flows the water out, a first closing valve 25a which closes a flow path and is arranged upstream of the water quality adjusting portion 23, and a second closing valve 25b which closes a flow path and is arranged downstream of the water quality adjusting portion 23. Therefore, it is possible to carry out maintenance of the water quality adjusting portion 23 which suppresses deposition of scale without stopping an operation of the water heater.
Description
Technical field
The present invention relates to hot-water supply.
Background technology
At present, as this hot-water supply, have plenty of and will be used stored hot water (for example,, with reference to patent documentation 1) at heat storage water tank by the hot water storage of the high temperature that heater heated.
Fig. 3 represents the existing hot-water supply described in patent documentation 1.As shown in Figure 3, hot-water supply comprises: have the heat pump unit 102 of gas cooler (supplying hot water heat exchanger) 101 and store the water storage unit 104 of the heat storage water tank 103 of water and the hot water that generates.
Heat pump unit 102 is by using refrigerant piping that compressor 105, gas cooler 101, expansion valve (decompressor) 106, evaporimeter 107 are connected into ring-type and form.In addition, the top of the bottom of heat storage water tank 103, circulating pump 108, gas cooler 101, heat storage water tank 103 connects with pipe arrangement respectively, forms water loop.
In addition, the hot-water supply of recording at patent documentation 1, in the water loop between bottom and the gas cooler 101 of heat storage water tank 103, is equipped with and will suppresses the inhibitor of incrustation scale generation for the water quality adjustment part (adder) 109 of feed water circuit.
Patent documentation 1: TOHKEMY 2011-69572 communique
Summary of the invention
Invent problem to be solved
But, the problem below existing in aforementioned existing structure, the maintenance of changing water quality adjustment part etc. at needs, operator need to stop the running of hot water apparatus, and thus, it is complicated that the maintenance of water quality adjustment part becomes.
The present invention is exactly that its object is the hot-water supply of the maintainability that a kind of adjustment part of increasing water quality is provided in order to solve above-mentioned problem.
For solving the method for problem
In order to solve aforementioned existing problem, the present invention is hot water apparatus, it is characterized in that, comprising: the heat storage water tank of stored hot water; The feed pipe supplying water to the bottom of described heat storage water tank; Derive the inlet pipeline of described water from the described bottom of described heat storage water tank; By the heater heating from the described water of described inlet pipeline; With the hot-water outlet pipe road that the described water being heated by described heater is supplied to the top of described heat storage water tank, the secondary flow road that described inlet pipeline or described feed pipe have primary flow path and described primary flow path is shunted, described primary flow path comprises: the water quality adjustment part forming in the mode that can load and unload in described primary flow path, and this water quality adjustment part makes the described water flowing into change over the water quality the outflow that are difficult to produce incrustation scale; The first stop valve (shutoffvalve), the upstream side that is arranged at described water quality adjustment part closes closed channel; With the second stop valve, closed channel is closed in the downstream that is arranged at described water quality adjustment part.
Thus, utilize the first stop valve and the second stop valve to close primary flow path, water flows through the state on secondary flow road,, under the state of hot-water supply running, can carry out the maintenance of water quality adjustment part.
Invention effect
According to the present invention, the hot-water supply that can provide the maintainability of water quality adjustment part to improve.
Symbol description
3 storage tanks
8 circulating pumps
10 heaters
12 feed pipes
18 inlet pipelines
18a primary flow path
18b secondary flow road
19 outlet pipelines
23 water quality adjustment parts
25a, 25b stop valve
26a draining valve
26b drainage
Brief description of the drawings
Fig. 1 is the structure chart of the hot-water supply of an embodiment of the invention.
Fig. 2 is the summary construction diagram of the water quality adjustment unit of this hot-water supply.
Fig. 3 is the structure chart of existing hot-water supply.
Detailed description of the invention
The first invention is a kind of hot-water supply, it is characterized in that, comprising: the heat storage water tank of stored hot water; The feed pipe supplying water to the bottom of described heat storage water tank; Derive the inlet pipeline of described water from the described bottom of described heat storage water tank; By the heater heating from the described water of described inlet pipeline; With the hot-water outlet pipe road that the described water being heated by described heater is supplied to the top of described heat storage water tank, the secondary flow road that described inlet pipeline or described feed pipe have primary flow path and described primary flow path is shunted, described primary flow path comprises: the water quality adjustment part forming in the mode that can load and unload in described primary flow path, and this water quality adjustment part makes the described water flowing into change over the water quality the outflow that are difficult to produce incrustation scale; The first stop valve, the upstream side that is arranged at described water quality adjustment part closes closed channel; With the second stop valve, closed channel is closed in the downstream that is arranged at described water quality adjustment part.
Thus, utilize the first stop valve and the second stop valve to close primary flow path, flow through under the state in secondary flow road at water, can carry out the maintenance of water quality adjustment part.Like this, needn't stop the running of hot-water supply, just can carry out the maintenance of water quality adjustment part.
Second invention be characterised in that, particularly, in the first invention, described primary flow path has the drainage that is provided with draining valve between described the first stop valve and described the second stop valve.
Thus, carry out draining from drainage closing after stop valve, make pressure drop between the first stop valve and the second stop valve to atmospheric pressure, can carry out the maintenance of water quality adjustment part.So the maintainability of water quality adjustment part improves.In addition, in the situation that not using water quality adjustment part for a long time, carry out draining from drainage, thereby can prevent the breakage of freezing caused water quality adjustment part of the water because being trapped in inside, water quality adjustment part.
The 3rd invention be characterised in that, particularly first or second invention in, described draining valve is arranged at the vertical lower side of described water quality adjustment part.
Thus, can effectively discharge the water being trapped in water quality adjustment part.In addition, the situation that in draining, water is discharged from draining valve, also can suppress water and splash with it operator, more effectively carry out the maintenance of water quality adjustment part.
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, the present invention is not limited to present embodiment.
Fig. 1 is the summary construction diagram of the hot-water supply in an embodiment of the invention.
As shown in Figure 1, the hot-water supply in present embodiment comprises: heater 10, water storage unit 4, water quality adjustment unit 40.
Heater 10 is heat pump units, with refrigerant piping by the compressor of compressed refrigerant 5, between cold-producing medium and water, carrying out the heat exchanger 11 of heat exchange, the decompressor (expansion valve) 6 of cold-producing medium decompression and the evaporimeter 7 that carries out heat exchange between air and cold-producing medium connected into ring-type and form.Carbon dioxide circulates in refrigerant piping.Use carbon dioxide as cold-producing medium, more than the on high-tension side pressure of heat pump unit becomes critical pressure.
Water storage unit 4 comprises the heat storage water tank 3 that stores water.Feed pipe 12 is connected with the bottom of heat storage water tank 3.Be provided with pressure-reducing valve 13 at feed pipe 12.The water of supplying with from running water pipe, pressure-reducing valve 13 is depressurized, flows into from the bottom of heat storage water tank 3.Feed pipe 12 supplies water to the bottom of heat storage water tank 3.In addition, heat supply water pipe 14 is connected with the top of heat storage water tank 3.The hot water that is stored in heat storage water tank 3 inside is supplied with the supplying hot water terminals 17 such as tap, shower nozzle, bathtub from heat supply water pipe 14.
In addition, water storage unit 4 comprises: from feed pipe 12 branches in the downstream of pressure-reducing valve 13, the bypass pipe 16 being connected with heat supply water pipe 14.In addition, between heat supply water pipe 14 and bypass pipe 16, dispose mixing valve 15.The high-temperature-hot-water flowing out to heat supply water pipe 14 from the top of heat storage water tank 3, at mixing valve 15, mixes with the water of the bypass pipe 16 of flowing through, and after temperature is adjusted, supplies with supplying hot water terminal 17 by heat supply water pipe 14.
The bottom of heat storage water tank 3 is connected with heat exchanger 11 use inlet pipelines 18.Inlet pipeline 18 is derived from the bottom of heat storage water tank 3.Heater 10 heats the water of sending from inlet pipeline 18.In addition, heat exchanger 11 is connected with hot-water outlet pipe road 19 with the top of heat storage water tank 3.Hot-water outlet pipe road 19 is supplied to the water heating at heater 10 on the top of heat storage water tank 3.Thus, the top of the bottom of heat storage water tank 3, heat exchanger 11, heat storage water tank 3 is connected circlewise with inlet pipeline 18 and hot-water outlet pipe road 19 successively, forms water loop.At the inlet pipeline 18 of the inside of water storage unit 4, be provided with the circulating pump 8 of water heat exchanger 11 force feeds of the bottom of heat storage water tank 3.
Inlet pipeline 18 has: primary flow path 18a and the secondary flow road 18b by primary flow path 18a shunting.Dispose water quality adjustment unit 40 described later at primary flow path 18a.
The water of heating heat storage water tank 3 inside add heat run time, be stored in the water of bottom of heat storage water tank 3 via inlet pipeline 18 inflow heat exchangers 11.The water of inflow heat exchanger 11 and cold-producing medium carry out heat exchange and are heated.The flow of hot water of heated high temperature, through hot-water outlet pipe road 19, flows into the top of heat storage water tank 3.
In addition, on the hot-water outlet pipe road 19 of inside that is positioned at heater 10, dispose the cooling-water temperature sensor 20a of the temperature that detects the water being heated by heater 10.In addition, the refrigerant piping from compressor 5 to heat exchanger 11, dispose refrigerant temperature sensors 20b.Further, in the inside of heater 10, dispose the external air temperature sensor 21 of measuring external air temperature.In addition, external air temperature sensor 21 preferred disposition are in evaporimeter 7, and are disposed at the weather side of evaporimeter 7.
Water quality adjustment unit 40 is disposed at the primary flow path 18a of inlet pipeline 18.Water quality adjustment unit 40 comprises: the water of inflow is changed over to the drainage 26b that is difficult to the water quality adjustment part 23 that produces the water quality of incrustation scale and make its outflow and has draining valve 26a.Water quality adjustment unit 40 use connecting portion 47a, 47b are connected with primary flow path 18a.As connecting portion 47a, 47b, for example, can use pipe joint (union joint) formula and the joint that is screwed into (screw in) formula.By connecting portion 47a, 47b are connected with inlet pipeline 18, water quality adjustment unit 40 and the 18a of main flow portion of inlet pipeline 18 can be loaded and unloaded.
Thus, also can not adopt water quality adjustment unit 40 but adopt other pipe arrangement that 47a, 47b are connected.Like this, both can between heater 10 and water storage unit 4, be connected water quality adjustment unit 40, also can not connect.
Water quality adjustment part 23 is disposed at primary flow path 18a.As shown in Figure 2, scale inhibitor 22 is filled in enclosure interior in water quality adjustment part 23.Water quality adjustment part 23 has scale inhibitor 22 is dissolved in flowed into water, is changed over the function that is difficult to produce the water of incrustation scale and makes its outflow.Water quality adjustment part 23 in present embodiment has inflow entrance 23a below the vertical of housing, has flow export 23b above vertical.In water quality adjustment part 23, water flows into from inflow entrance 23a, and water flows out from flow export 23b., water quality adjustment part 23 itself forms primary flow path 18a.
In addition, water quality adjustment part 23 use inflow entrance 23a are connected with the 18a of main flow portion with flow export 23b.In the present embodiment, water quality adjustment part 23 and the 18a of main flow portion are by inserting inflow entrance 23a by the pipe arrangement that forms the 18a of main flow portion and flow export 23b is connected., water quality adjustment part 23 forms in the mode that can load and unload at primary flow path 18a.In the case, preferably between primary flow path 18a and inflow entrance 23a and flow export 23b, configure the seal members such as O shape ring.In addition, inflow entrance 23a and flow export 23b for example also can use the joint of pipe joint and screw-in.
Water quality adjustment part 23 in embodiment, forms by filling scale inhibitor 22 in the resinous enclosure interior of polyphenylene sulfide (PPS).Housing adopts PPS resin, can improve withstand voltage properties.
Scale inhibitor 22 is dissolved in water, can suppress to be included in the growth of the crystallization of (composition of scales) such as calcium carbonate in water, suppresses separating out of incrustation scale.As scale inhibitor 22, can use the particle taking polyphosphate as main component.As polyphosphate, representational is sodium phosphate trimer and calgon, also can use other polyphosphate.In addition, also can use the material taking the low polymer of phosphoric acid (phosphonic acid) and carboxylic acids polyelectrolyte etc. as main component.
Water quality adjustment part 23 in present embodiment disposes inflow entrance 23a below the vertical of housing, disposes flow export 23b above vertical.Thus, water in the housing of water quality adjustment part 23 of filling scale inhibitor 22 from below flow to above.Thus, flow through the current of 23 inside, water quality adjustment part all over whole water quality adjustment part 23.So just can make the solubility (concentration of the scale inhibitor 22 in the water of specific discharge) of the scale inhibitor 22 being dissolved in the water stable.
Primary flow path 18a at the upstream side of water quality adjustment part 23 disposes stop valve (the first stop valve) 25a.In addition, dispose stop valve (the second stop valve) 25b at the primary flow path 18a in the downstream of water quality adjustment part 23.Herein, in the present embodiment, stop valve 25a is configured in the primary flow path 18a that is more positioned at upstream side than connecting portion 47a.In addition, stop valve 25b is disposed at the primary flow path 18a that is more positioned at downstream than connecting portion 47b.Stop valve 25a and stop valve 25b have the function of closing and opening the stream of primary flow path 18a.Closing with open of stop valve 25a and 25b both can, by operator's manual operation, also can be passed through control device (not shown) automatic operation.
In primary flow path 18a between stop valve 25a and inflow entrance 23a, dispose the drainage 26b with draining valve 26a., drainage 26b is arranged at the inside of water quality adjustment unit 40.Draining valve 26a has and closes and the function of the stream of open row water channel 26b.Closing with open of draining valve 26a both can, by operator's manual operation, also can be passed through control device (not shown) automatic operation.
Herein, draining valve 26a is disposed at than water quality adjustment part 23 and is more positioned at lower side in vertical.In addition, the front end of drainage 26b than horizontal direction mutually more towards vertical lower side.Thus, while carrying out draining from drainage 26b, can suppress water and splash with it operator.
The operation, the effect that adopt the hot-water supply forming with upper type are described below.
First, the heat run that adds of the water generating hot water to heating heat storage water tank 3 inside describes.
Adding in heat run, the operation of control device (not shown) control compressor 5, decompressor 6, circulating pump 8, generating hot water.
In addition, in the time adding heat run, stop valve 25a, 25b open, and draining valve 26a closes.
In heater 10, cold-producing medium flows in compressor 5, is compressed into critical pressure above and discharges from compressor 5.The cold-producing medium inflow heat exchanger 11 of the HTHP of discharging from compressor 5.In water storage unit 4, circulating pump 8 is started working, so the water of heat storage water tank 3 bottoms flows through inlet pipeline 18 inflow heat exchanger 11.
Cold-producing medium in inflow heat exchanger 11, to from the water-cooled of inlet pipeline 18 inflow heat exchangers 11, flows out from heat exchanger 11.The cold-producing medium flowing out from heat exchanger 11 is depressurized device 6 and reduces pressure, and after part or all liquefaction, flows into evaporimeter 7.The cold-producing medium that flows into evaporimeter 7 absorbs heat and evaporates from air, again flows into evaporimeter 5.
The water of inflow heat exchanger 11, from the cold-producing medium heat absorption of HTHP, becomes hot water.Hot water flows out from heat exchanger 11, flows through hot-water outlet pipe road 19, flows into the inside of heat storage water tank 3 from the top of heat storage water tank 3.Like this, in heat exchanger 11, cold-producing medium and water carry out heat exchange, generate the hot water of high temperature., carbon dioxide is used as to cold-producing medium herein, so, can heat water to high temperature (for example 85 degree).
In addition,, in the time adding heat run, the rotating speed of control device controlled circulation pump 8, makes the hot water temperature's (heating-up temperature) who detects at cooling-water temperature sensor 20a become set point of temperature.In addition, control device according to the temperature of the cold-producing medium that detects at refrigerant temperature sensors 20b, with the temperature of the extraneous air detecting in external air temperature sensor 21, control compressor 5 and decompressor 6.
Herein, the current of sending here from the bottom of heat storage water tank 3 by circulating pump 8 are through inlet pipeline 18, to primary flow path 18a and secondary flow road 18b shunting.Flow into the water of primary flow path 18a by water quality adjustment part 23.Now, the scale inhibitor 22 being filled in water quality adjustment part 23 is dissolved in water.Like this, the water that scale inhibitor 22 dissolves flows out from water quality adjustment part 23, mixes inflow heat exchanger 11 with the water of the secondary flow road 18b that flows through.
Being included in the compositions such as calcium carbonate in water has and becomes high temperature along with water is heated and easily crystallization the character separated out.Therefore, scale inhibitor 22 is dissolved in the water in inflow heat exchanger 11, particularly, in the heat exchanger 11 and hot-water outlet pipe road 19 of the flow of hot water warp of high temperature, can suppresses the growth of the crystallizations such as calcium carbonate, can suppress separating out of incrustation scale.
In addition, the water quality adjustment part 23 in present embodiment, according to water be filled with scale inhibitor 22 housing inside from below flow to upward a direction mode form.Thus, current are all over whole water quality adjustment part 23.So the solubility of the scale inhibitor 22 flowing out from water quality adjustment part 23 is stable.
The capacity that is filled in the scale inhibitor 22 in water quality adjustment part 23 reduces gradually because being dissolved in the water.If capacity reduces, the meltage of scale inhibitor 22 in water also reduces gradually, suppresses the effect reduction that incrustation scale is separated out.Like this, before the effect that must separate out at forfeiture inhibition incrustation scale, implement change water quality adjustment part 23 or refill the maintenances such as scale inhibitor 22.From the viewpoint of operability, safeguard and preferably water quality adjustment part 23 was unloaded afterwards and carried out from inlet pipeline 18.
In the water quality adjustment part 23 adding after heat run, there is the hydraulic pressure of the height difference of heat storage water tank 3 and water quality adjustment part 23.Like this, if pull down water quality adjustment part 23 under the state that has hydraulic pressure, the hot water being stored in heat storage water tank 3 flows towards the primary flow path 18a of atmosphere opening, and hot water flows out.Particularly, in the situation that hot water storage is in whole heat storage water tank 3, the high-temperature-hot-water flowing out from the bottom of heat storage water tank 3 flows out from the primary flow path 18a of atmosphere opening, and maintenance becomes more difficult.
Therefore,, in the hot-water supply of present embodiment, dispose respectively stop valve 25a, 25b in upstream side and the downstream of water quality adjustment part 23.Utilize stop valve 25a, 25b can close the stream of primary flow path 18a.Like this, utilize stop valve 25a, 25b to close inlet pipeline 18 to pull down water quality adjustment part 23, the water being only trapped in the inlet pipeline 18 between stop valve 25a, 25b flows out., can not flow out in the time keeping in repair at the water of hot-water supply inner loop, the hot water of for example heat storage water tank 3.Thus, can effectively carry out at short notice the maintenance of water quality adjustment part 23.
In addition, even if stop valve 25a, 25b close primary flow path 18a, the water flowing out to inlet pipeline 18 from the bottom of heat storage water tank 3 flows through secondary flow road 18b, inflow heat exchanger 11.Like this, just can carry out the heat run that adds of hot-water supply on one side, carry out the maintenance of water quality adjustment part 23 on one side.
In addition, the hot-water supply of present embodiment, the primary flow path 18a between stop valve 25a and inflow entrance 23a is equipped with the drainage 26b with draining valve 26a.Open draining valve 26a closing after stop valve 25a, 25b, so the water being trapped between stop valve 25a, 25b is discharged from from draining road 26b.In addition, as previously mentioned, in water quality adjustment part 23, generation heat storage water tank 3 and water quality are adjusted the hydraulic pressure of the height difference of this portion 23.So operator opened draining valve 26a and carries out draining before the dismounting of carrying out water quality adjustment part 23, thus can be by the pressure decreased of 18 inside of the inlet pipeline with regard between stop valve 25a, 25b to atmospheric pressure.
Thus, in the time pulling down water quality adjustment part 23, anti-sealing is discharged because of hydraulic pressure, can effectively carry out at short notice the maintenance of water quality adjustment part 23.In addition, drainage 26b is disposed at the vertical lower side of water quality adjustment part 23, so drainage improves, and can prevent in the time of draining that hot water from splashing with it operator, so maintainability improves.
In addition, in the situation that for a long time not using water quality adjustment part 23, stop valve 25a, 25b close, and draining valve 26a opens.Like this, the water being trapped between stop valve 25a and stop valve 25b is discharged from drainage 26b.Thus, in the situation that external air temperature declines, prevent water quality adjustment part 23 and primary flow path 18a because of be trapped in water in water quality adjustment part 23 and primary flow path 18a freeze damaged.
In addition, in the present embodiment, close stop valve 25a, 25b, pull down connecting portion 47a, 47b from primary flow path 18a, like this, needn't discharge in a large number the water of hot-water supply inside, easily pull down water quality adjustment unit 40.
In addition, use heat pump unit as heater 10, still, also can adopt and replace heat pump unit with other heaters 10 such as burning of gas device, electric heaters.
In addition, drainage 26b is arranged at the primary flow path 18a between stop valve 25a and inflow entrance 23a, and in addition, what also can be arranged at primary flow path 18a between flow export 23b and stop valve 25b is more positioned at vertical lower side than water quality adjustment part 23.Thus, can successfully discharge the water being trapped between flow export 23b and stop valve 25b.
In addition, example of the present invention is not limited to this.For example, primary flow path 18a also can be connected with feed pipe 12 with secondary flow road 18b.In the case, water quality adjustment unit 40, stop valve 25a, 25b are configured in the primary flow path 18a being formed in feed pipe 12.In addition, primary flow path 18a is configured in the downstream of the pressure-reducing valve 13 of the flow direction of the water of feed pipe 12.Thus, the water being depressurized at pressure-reducing valve 13 flows into water quality adjustment part 23.So, excessively raise without the resistance to pressure of the housing that makes water quality adjustment part 23, can cutting down cost.Water quality adjustment part 23 is configured in to feed pipe 12, thereby can makes scale inhibitor 22 be dissolved in the water that flows into heat storage water tank 3.Like this, the water of inflow heat exchanger 11 comprises scale inhibitor 22, so, as previously mentioned, can suppress separating out of incrustation scale.In addition, current supply water through secondary flow road 18b and to heat storage water tank 3, so, needn't stop the running of hot-water supply, just can carry out the maintenance of water quality adjustment part 23.
In addition, primary flow path 18a is preferably flowing through the inflow direction of water of feed pipe 12, is configured in the more upstream side with the bifurcation of bypass pipe 16 than feed pipe 12.Thus, the water that is dissolved with scale inhibitor 22 bypass pipe 16 of also flowing through, so, by the solubility that is supplied to the scale inhibitor 22 in the hot water of hot water terminal 17 remain on certain more than.
Like this, in the situation that needs are changed water quality adjustment part 23 and filled the maintenances such as scale inhibitor 22, first operator utilizes stop valve 25a and 25b to close closed channel.Then, open the draining valve 26a of drainage 26b, discharge the water being trapped between stop valve 25a and stop valve 25b.Then, unload the water quality adjustment part 23 that the mode can load and unload at inlet pipeline 18 forms.Thus, only discharge the water being trapped between stop valve 25a and stop valve 25b, needn't discharge the water of whole hot-water supply.So just can effectively carry out the maintenance of water quality adjustment part 23.
In industry, utilize possibility
As previously discussed, hot-water supply involved in the present invention utilizes water quality adjustment part to suppress separating out of incrustation scale, and the maintainability of water quality adjustment part improves, so, can be applied in family expenses and commercial grade in hot-water supply.
Claims (3)
1. a hot-water supply, is characterized in that, comprising:
The heat storage water tank of stored hot water;
The feed pipe supplying water to the bottom of described heat storage water tank;
Derive the inlet pipeline of described water from the described bottom of described heat storage water tank;
By the heater heating from the described water of described inlet pipeline; With
The described water being heated by described heater is supplied to the hot-water outlet pipe road on the top of described heat storage water tank,
The secondary flow road that described inlet pipeline or described feed pipe have primary flow path and described primary flow path is shunted,
Described primary flow path comprises:
The water quality adjustment part forming in the mode that can load and unload in described primary flow path, this water quality adjustment part makes the described water flowing into change over the water quality the outflow that are difficult to produce incrustation scale;
The first stop valve, the upstream side that is arranged at described water quality adjustment part closes closed channel; With
The second stop valve, closed channel is closed in the downstream that is arranged at described water quality adjustment part.
2. hot-water supply as claimed in claim 1, is characterized in that:
Described primary flow path has the drainage that is provided with draining valve between described the first stop valve and described the second stop valve.
3. hot-water supply as claimed in claim 2, is characterized in that:
Described draining valve is arranged at the vertical lower side of described water quality adjustment part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013050023A JP2014173825A (en) | 2013-03-13 | 2013-03-13 | Hot water supply device |
| JP2013-050023 | 2013-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104048404A true CN104048404A (en) | 2014-09-17 |
| CN104048404B CN104048404B (en) | 2018-04-20 |
Family
ID=50193382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410084564.8A Active CN104048404B (en) | 2013-03-13 | 2014-03-10 | Hot-water supply |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2778562B1 (en) |
| JP (1) | JP2014173825A (en) |
| CN (1) | CN104048404B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152487A (en) * | 2016-07-29 | 2016-11-23 | 宁波市大树节能科技有限公司 | A kind of water heater ultrasonic descaling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400773A (en) * | 2018-05-22 | 2018-08-14 | 江苏阳光四季新能源科技股份有限公司 | Monoblock type panel solar photo-thermal system |
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| CN2150203Y (en) * | 1993-02-06 | 1993-12-22 | 刘天章 | Domestic magnitizing-scaling device for water and water-heater |
| JP2004177035A (en) * | 2002-11-28 | 2004-06-24 | Matsushita Electric Ind Co Ltd | Bath heater with purifying function |
| CN1506638A (en) * | 2002-12-10 | 2004-06-23 | 松下电器产业株式会社 | Water heater |
| JP2009030959A (en) * | 2007-06-27 | 2009-02-12 | Daikin Ind Ltd | Heat pump type water heater |
| JP2010078239A (en) * | 2008-09-26 | 2010-04-08 | Tokyo Electric Power Co Inc:The | Water heater and method of preventing scale deposition |
| CN201589416U (en) * | 2009-05-26 | 2010-09-22 | 吴江市宇欣电器有限公司 | Dirt-free air-source water heater |
| CN201962127U (en) * | 2010-03-02 | 2011-09-07 | 杜弘道 | Automatically-controlled and slowly-released antiscale device of water heater |
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| CN106152487A (en) * | 2016-07-29 | 2016-11-23 | 宁波市大树节能科技有限公司 | A kind of water heater ultrasonic descaling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014173825A (en) | 2014-09-22 |
| EP2778562A1 (en) | 2014-09-17 |
| CN104048404B (en) | 2018-04-20 |
| EP2778562B1 (en) | 2018-10-24 |
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