CN108253516A - Energy and water saving type hot water supply system - Google Patents
Energy and water saving type hot water supply system Download PDFInfo
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- CN108253516A CN108253516A CN201810184654.2A CN201810184654A CN108253516A CN 108253516 A CN108253516 A CN 108253516A CN 201810184654 A CN201810184654 A CN 201810184654A CN 108253516 A CN108253516 A CN 108253516A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 239
- 239000000523 sample Substances 0.000 claims description 29
- 239000002699 waste material Substances 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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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
- F24D17/00—Domestic hot-water supply systems
- F24D17/0078—Recirculation systems
-
- 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
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
-
- 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
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/139—Continuous flow heaters
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0207—Pumps
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/025—Check valves
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
Landscapes
- 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)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The invention discloses a kind of energy and water saving type hot water supply systems, belong to living electric apparatus field, provide the energy and water saving type hot water supply system that one kind can save water and mass energy is caused to waste.The circulating chilled water of early period when beginning to use hot water by back water pump can be drawn back to water heater, the loss of the portion of cold water avoided to waste with this by energy and water saving type hot water supply system of the present invention.In addition, since this water-saving system is only during tap is opened, it can just trigger and start back water pump and water heater, therefore when hot water is not used, the water in entire circuit is cold water.For original circulating water device, while achieving the purpose that water-saving and easy to use, almost without energy consumption is generated；Its energy consumption is only the water pump power consumption of several seconds.Therefore, can widely apply in family life.
Description
Technical field
The present invention relates to living electric apparatus field more particularly to a kind of energy and water saving type hot water supply systems.
Background technology
Under normal circumstances, family, which has, multiple uses water spot.The distance of water heater installation site distance part water spot is longer,
Every time using hot water, often it is wasted from water heater to this section of cold water water spot.At present, this is solved the problems, such as
Method is installation circulating water device.
The principle of circulating water device is：There are one temperature control inductor and water pump, circulating water devices for meeting inside circulating water device
Below water heater, the water inlet that water heater is taken back by a return pipe forms a circuit.When temperature control senses water
When water in pipe is less than preset temperature, can control recirculating water pump start, water heater sensed flow can also light a fire by
Water heats, and after reaching temperature, water pump just stops, and water heater can also stop, and is protected always with the water that this ensures to be located in circuit
It holds in certain temperature range, can achieve the effect that opening tap just has hot water outflow.
Aforesaid way originates from luxurious hotel's hot-water heating system, is largely used to family in recent years.Its circulating water device is for height
Grade hotel hot-water heating system is reasonable, but have the problem of certain for family.Since after the water inside circuit is heated, heat
It can gradually scatter and disappear outward, hot water uses not in time, and heat will waste.Hotel reaches certain degree in occupancy rate
Afterwards, the frequency of use of hot water can also reach certain height, and the heat of hot water, which scatters and disappears, can control in a rational range
It is interior.And the service condition of family is then different, the situation on the shelf after being heated of the water inside hot-water return largely exists；Therefore
This kind of circulating water device (consumes for after family, keeping the temperature of water in circuit that will waste a large amount of energy for a long time including water pump
It can scatter and disappear with heat).Therefore, the larger wasting of resources will be caused in the family using above-mentioned circulating water device at present.
By above-mentioned analysis, can existing hot-water heating system be substantially divided into two classes：One kind is traditional single tube life heat
Water system, there are the shortcomings that be mainly：After system start-up, water heater is first bled off to this between water spot (tap)
Duan Lengshui can just go out hot water later；Therefore there are problems that waste water resource.
Another kind of is Double-tube cyclic hot water supply system, i.e., the above hot-water heating system originating from luxurious hotel,
It by setting circulating water device, and is maintained at the water in circulation line and is constantly within the scope of certain temperature, certainly its needs
Continue or the intermittently water in heat cycles pipeline, to achieve the purpose that maintain water temperature in pipeline；But the second class hot water
System, without being isolated between circulating hot water and the cold water in water inlet pipe and water outlet pipe, hot water also exists with cold water replaces phenomenon, heat in circulation pipe
The heat of water, which scatters and disappears, to be exceedingly fast；And if Double-tube cyclic hot water supply system 24 hours works, it is right although water resource can be saved
The waste of the energy is more serious.The energy of waste is converted to after money it could even be possible to being several times to more than ten of saving water resource
Times.In practice, user often for gas saving or natural gas expense, shortens the working time of circulation hot-water system.But
This behave but increases the cumbersome degree that hot water uses.It is final the result is that a part of user in use for some time, abandons
Use to circulation hot-water system, using only its single tube hot water function.
Such as application No. is：CN201521048883.X, entitled " the gas heater circulatory system " (referred to hereinafter as document
One) it is and after application CN201620309411.3, the document of entitled " a kind of water-saving device of water heater " (referred to hereinafter as document two)
Hot-water heating system disclosed in middle difference belongs to above-mentioned second class hot-water heating system.
The purpose of document one is that cycle living system is intelligent, to improve the convenient degree used.But system uses
Convenient degree it is not final, be fully improved, it is more cumbersome using process instead.Document one is in order to avoid the frequency of solenoid valve
Temperature-sensing probe is arranged on water outlet by numerous keying, this to need to complete following steps during user's heat water：Remote control is opened
Hot water circuit is opened, after waiting for several minutes, remote closing hot water circuit, then solenoid valve access is manually changed, then open water outlet
Use hot water.If omit the step of remote control is opened and waited for, it is necessary to which circulation hot-water system is opened for a long time, energy waste
It is larger.The actual motion effect of document one may be also more worse than the second traditional class hot-water heating system.Water-saving and easy to use
On the basis of, it can not realize energy saving.
Document second is that the second class hot-water heating system solar water field application.Because solar energy is at low cost, energy wave
The contradiction of expense does not protrude, so the system has promotional value.But the solenoid valve of the system starts frequently, easily causes
Service life is too low.So the system and immature, requires further improvement.(if technical solution is applied to described in this patent
It compares with document two and still has the advantage that in solar water field：It is at low cost；Service life is long；Although solar energy cost
It is low, but long-term waste is still a not low expense.)
Invention content
Water can be saved the technical problem to be solved by the present invention is to provide one kind and causes the water-saving of mass energy waste
Energy-saving hot water supply system.
The technical solution adopted by the present invention to solve the technical problems is：Energy and water saving type hot water supply system, including heat
Hydrophone, the water inlet of water heater are connected with feed pipe, and the water outlet of water heater is connected by hot-water line with tap, is further included back
Water pipe, back water pump, internally piloted valve, temperature-sensing probe and control system；One end of the return pipe is connected with hot-water line, return pipe and heat
The position of water pipe connection is A points, and A points are located at hot-water line close to one end of tap, the other end and feed pipe of return pipe
Connection；The back water pump is set in the middle part of return pipe；The temperature-sensing probe is set in hot-water line；The internally piloted valve is set to A
On hot-water line between point and tap；The tap is the valve that signal is controlled with synchro switch；The control system point
It is not connected with back water pump, internally piloted valve, temperature-sensing probe and tap signal.
It is further：There are two the temperature-sensing probe settings, and one of temperature-sensing probe is set to close in hot-water line
Water heater one end, another temperature-sensing probe are set in hot-water line close to tap one end.
It is further：Be additionally provided with check-valves on return pipe, and check-valves be set to feed pipe and back water pump it
Between.
It is further：The control system is PLC control system.
It is further：Shut-off valve is additionally provided on return pipe.
The beneficial effects of the invention are as follows：Energy and water saving type hot water supply system of the present invention can begin to use heat
During water, the circulating chilled water of early period is drawn back to water heater by back water pump, the loss of the portion of cold water is avoided to waste with this.Separately
Outside, since this water-saving system is only during tap is opened, it can just trigger and start back water pump and water heater, therefore
When hot water is not used, the water in entire circuit is cold water.For original circulating water device, to reach water-saving and making
With easily purpose, almost without energy consumption is generated；Its energy consumption is only the water pump power consumption of several seconds.Therefore, may be used
Widely apply in family life.
Description of the drawings
Fig. 1 is the schematic diagram of energy and water saving type hot water supply system of the present invention；
In figure label for：Water heater 1, feed pipe 2, hot-water line 3, tap 4, return pipe 5, back water pump 6, internally piloted valve 7, sense
Temperature probe 8, control system 9, check-valves 10, shut-off valve 11.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1, energy and water saving type hot water supply system of the present invention, including water heater 1, water heater 1
Water inlet is connected with feed pipe 2, and the water outlet of water heater 1 is connected by hot-water line 3 with tap 4, is further included return pipe 5, is returned
Water pump 6, internally piloted valve 7, temperature-sensing probe 8 and control system 9；One end of the return pipe 5 is connected with hot-water line 3, return pipe 5 and heat
The position that water pipe 3 connects is A points, and A points are located at hot-water line 3 close to one end of tap 4, the other end of return pipe 5 and confession
Water pipe 2 connects；The back water pump 6 is set to 5 middle part of return pipe；The temperature-sensing probe 8 is set in hot-water line 3；The automatic control
Valve 7 is set on the hot-water line 3 between A points and tap 4；The tap 4 is the valve that signal is controlled with synchro switch；Institute
Control system 9 is stated respectively with back water pump 6, internally piloted valve 7, temperature-sensing probe 8 and 4 signal of tap to be connected.
Wherein, back water pump 6 is heated and is returned for the water supply pump in hot-water line 3 and return pipe 5 to be back in water heater 1
It receives and utilizes, back water pump 6 is controlled to shut down after the temperature of water in hot-water line 3 is increased to preset temperature, then by control system 9, together
When control open internally piloted valve 7 so that hot water is flowed out from tap 4.
Certainly, above-mentioned control process is controlled by control system 9, and temperature-sensing probe 8 is located at for sensing
The water temperature of corresponding position in hot-water line 3, and the water temperature of sensing is conveyed to control system 9, it will by control system 9
Sensing temperature value takes corresponding control measure by control system 9 again after being compared with preset temperature value.It is specifically, of the invention
Middle control system 9 preferably uses PLC control system.
In addition, using the valve with synchro switch control signal in the present invention, as tap 4, the purpose is in switch water
While tap 4, it can synchronize and generate corresponding switch control signal, and by by tap 4 and 9 signal phase of control system
Even, the control signal that can will be switched by the switch control signal that tap 4 generates as control control system 9.
More specifically, it is preferably set there are two temperature-sensing probes 8 in the present invention, one of temperature-sensing probe 8 is set to heat
Close to 1 one end of water heater in water pipe 3, another temperature-sensing probe 8 is set in hot-water line 3 close to 4 one end of tap.It sets in this way
Purpose, on the one hand can be by be sensed close to the temperature-sensing probe 8 of 4 one end of tap closest to the water temperature at tap 4, this
Sample more can be obtained accurately and control the initial temperature of flow being expelled directly out when back water pump 6 is shut down from tap 4.And lead to
Cross the temperature-sensing probe 8 close to 3 one end of water heater then can sense whether have water temperature variation, and then can be used in a relatively short period of time
Judge that water heater 1 is lighted a fire whether to succeed；And when sensing water heater 1 as loss of ignition, it can also take of short duration stopping return water
The mode restarted after pump 6, to re-start the igniting of water heater 1；There is multiple water heater in addition, can also be further disposed at
In the case of 1 loss of ignition, control back water pump 6 is shut down；It can tentatively judge that water heater 1 has damaged at this time.
In addition, the water in return pipe 5 flows back and prevents from intaking into return pipe 5 from feed pipe 2 in order to prevent, with reference to attached
Shown in Fig. 1, check-valves 10 is further provided on return pipe 5, and check-valves 10 is set to feed pipe 2 and back water pump 6
Between.Check-valves 10 is check valve, and only permissible flow flows to 1 one end of feed pipe from 3 one end of hot-water line.It in addition, also can be
Shut-off valve 11 is provided on return pipe 5, for controlling the break-make of return pipe 5 manually.
The specific work process of the present invention is as follows：When manually opened tap 4, since tap 4 carries synchro switch
Work is controlled, therefore will synchronous opening control system 9；After starting control system 9, corresponding water is first sensed according to temperature-sensing probe 8
Sensing data are simultaneously conveyed to control system 9 by temperature, and control system 9 is taken after being judged according to the sensing data of temperature-sensing probe 8
Corresponding control：When the water temperature of sensing is less than preset value, control system 9 controls corresponding back water pump 6 to start, while controls certainly
Control valve 7 is closed, and hot-water line 3, return pipe 5 and feed pipe 2 etc. is formed return line by back water pump 6 at this time, by cold water blowback
It is heated in water heater 1 and realizes recycling；Until when the water temperature of sensing reaches preset value, control system 9 controls
Internally piloted valve 7 is opened, while is controlled and closed back water pump 6, and being discharged at this time from tap 4 will be to reach the hot water after preset temperature.
In addition, as described above, two temperature-sensing probes 8 are may be provided with, and set there are two during temperature-sensing probe 8 in setting
Put the water temperature that is sensed of temperature-sensing probe 8 close to 4 one end of tap will be used as in above-mentioned specific work process be used for
The comparison of preset temperature.And the effect of the temperature-sensing probe 8 close to 1 one end of water heater is then the water outlet for sensing from water heater 1
Whether the water temperature of mouthful draining changes, for judging whether water heater 1 lights a fire success.
Under general family's use environment, hot-water heating system of the present invention can wait for number after tap 4 is opened
Second can directly go out hot water, discharge and waste without cold water substantially, can effectively realize water-saving effect；Simultaneously when dry
(when closing tap 4), the corresponding cycle operation control system such as back water pump 6, control system 9 can also be in halted state,
Completely without continuous service, and the water in return pipe 5 can be completely cold water state, into without excessive energy waste
The problem of, have effectively achieved the reduction effect of electric energy.To sum up, water-saving, section can be achieved at the same time in hot-water heating system of the present invention
The effect of energy, and it is easy to use.
Claims (5)
1. energy and water saving type hot water supply system, including water heater (1), the water inlet of water heater (1) is connected with feed pipe (2),
The water outlet of water heater (1) is connected by hot-water line (3) with tap (4), it is characterised in that：Further include return pipe (5), return water
Pump (6), internally piloted valve (7), temperature-sensing probe (8) and control system (9)；One end of the return pipe (5) is connected with hot-water line (3),
The position that return pipe (5) is connected with hot-water line (3) is A points, and A points are located at one end of the close tap (4) of hot-water line (3),
The other end of return pipe (5) is connected with feed pipe (2)；The back water pump (6) is set in the middle part of return pipe (5)；The temperature-sensitive is visited
Head (8) is set in hot-water line (3)；The internally piloted valve (7) is set on the hot-water line (3) between A points and tap (4)；Institute
It is the valve that signal is controlled with synchro switch to state tap (4)；The control system (9) respectively with back water pump (6), internally piloted valve
(7), temperature-sensing probe (8) is connected with tap (4) signal.
2. energy and water saving type hot water supply system as described in claim 1, it is characterised in that：Temperature-sensing probe (8) setting
There are two, one of temperature-sensing probe (8) is set in hot-water line (3) close to water heater (1) one end, another temperature-sensing probe
(8) it is set in hot-water line (3) close to tap (4) one end.
3. energy and water saving type hot water supply system as described in claim 1, it is characterised in that：It is also set up on return pipe (5)
There is check-valves (10), and check-valves (10) is set between feed pipe (2) and back water pump (6).
4. energy and water saving type hot water supply system as described in claim 1, it is characterised in that：The control system (9) is PLC
Control system.
5. the energy and water saving type hot water supply system as described in any one in Claims 1-4, it is characterised in that：In return water
Shut-off valve (11) is additionally provided on pipe (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017216354433 | 2017-11-29 | ||
| CN201721635443 | 2017-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108253516A true CN108253516A (en) | 2018-07-06 |
Family
ID=62745882
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820308248.8U Active CN207945725U (en) | 2017-11-29 | 2018-03-06 | Energy and water saving type hot water supply system |
| CN201810184654.2A Pending CN108253516A (en) | 2017-11-29 | 2018-03-06 | Energy and water saving type hot water supply system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820308248.8U Active CN207945725U (en) | 2017-11-29 | 2018-03-06 | Energy and water saving type hot water supply system |
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| Country | Link |
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| CN (2) | CN207945725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362638A (en) * | 2018-11-21 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | Control system for fish multiplication pouring station circulating water treatment device |
| CN110500646A (en) * | 2019-08-27 | 2019-11-26 | 珠海格力电器股份有限公司 | Bathroom system and bathroom system control method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207945725U (en) * | 2017-11-29 | 2018-10-09 | 中国电建集团成都勘测设计研究院有限公司 | Energy and water saving type hot water supply system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013015263A (en) * | 2011-07-04 | 2013-01-24 | Tokyo Gas Co Ltd | Hot water supply system |
| CN103322682A (en) * | 2013-06-27 | 2013-09-25 | 无锡商业职业技术学院 | Domestic water circulation system |
| CN204693836U (en) * | 2015-05-30 | 2015-10-07 | 杨新伟 | A kind of electric heater cold-water reflux water saving fixtures |
| CN207945725U (en) * | 2017-11-29 | 2018-10-09 | 中国电建集团成都勘测设计研究院有限公司 | Energy and water saving type hot water supply system |
-
2018
- 2018-03-06 CN CN201820308248.8U patent/CN207945725U/en active Active
- 2018-03-06 CN CN201810184654.2A patent/CN108253516A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013015263A (en) * | 2011-07-04 | 2013-01-24 | Tokyo Gas Co Ltd | Hot water supply system |
| CN103322682A (en) * | 2013-06-27 | 2013-09-25 | 无锡商业职业技术学院 | Domestic water circulation system |
| CN204693836U (en) * | 2015-05-30 | 2015-10-07 | 杨新伟 | A kind of electric heater cold-water reflux water saving fixtures |
| CN207945725U (en) * | 2017-11-29 | 2018-10-09 | 中国电建集团成都勘测设计研究院有限公司 | Energy and water saving type hot water supply system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362638A (en) * | 2018-11-21 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | Control system for fish multiplication pouring station circulating water treatment device |
| CN109362638B (en) * | 2018-11-21 | 2024-04-26 | 中国电建集团成都勘测设计研究院有限公司 | Control system for circulating water treatment equipment of fish proliferation releasing station |
| CN110500646A (en) * | 2019-08-27 | 2019-11-26 | 珠海格力电器股份有限公司 | Bathroom system and bathroom system control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207945725U (en) | 2018-10-09 |
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Application publication date: 20180706 |
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