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CN110332724A - A kind of auxiliary device of solar water heater - Google Patents

A kind of auxiliary device of solar water heater Download PDF

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Publication number
CN110332724A
CN110332724A CN201910527988.XA CN201910527988A CN110332724A CN 110332724 A CN110332724 A CN 110332724A CN 201910527988 A CN201910527988 A CN 201910527988A CN 110332724 A CN110332724 A CN 110332724A
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CN
China
Prior art keywords
water
auxiliary device
connect
valve
solar
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Granted
Application number
CN201910527988.XA
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Chinese (zh)
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CN110332724B (en
Inventor
席海群
白子建
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Individual
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Individual
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Priority to CN201910527988.XA priority Critical patent/CN110332724B/en
Publication of CN110332724A publication Critical patent/CN110332724A/en
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Publication of CN110332724B publication Critical patent/CN110332724B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00Arrangements for controlling solar heat collectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/30Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (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)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention discloses a kind of auxiliary device of solar water heater, the water tank including solar water heater further includes upper and lower conduit, emptier, signal wire, water mixing valve and auxiliary device assembly;Upper and lower water route is connect with water tank, and is attached by water mixing valve and auxiliary device assembly;Meanwhile signal wire one end is connect with drainage control device, the other end is connect with auxiliary device assembly;Fluid level control device controls the water level in water tank.It is versatile the present invention provides a kind of auxiliary device of solar water heater, it is compact-sized, it is easy for installation;Production is simple, and diversion, pressurization, emptying three major issues can be solved simultaneously, since diversion and emptying time are very short, power of motor very little when pressurization, so very energy saving, service life of equipment is also grown, it can remind user that should close power supply in time when not in use using button switch, reach energy-saving effect, forces emptying that can thoroughly empty the water in upper and lower conduit, the enhancing of preventing freeze in winter significant effect.

Description

A kind of auxiliary device of solar water heater
Technical field
The present invention relates to technical field of solar water heaters, more particularly to a kind of auxiliary of solar water heater Device.
Background technique
Solar water heater is widely used with many advantages, such as energy-saving and environmental protection, and most of solar water heaters do not have Pipe laying empties facility so that arrived winter solar energy water heater mostly all at ornaments, and cause upper and lower conduit road by Frost heave, bursting by freezing in ponding, cause solar water heater not to be available, although some solar water heaters are mounted with that emptying is set It applies, but there are quite a lot of situations not to be able to satisfy emptying condition, such as there are U-bends for lower part water pipe, or due to technology complexity, cost Solar water heater that is high, being mounted on low layer drop is low keep hydraulic pressure excessively low due to and cannot be promoted well and Using.So to allow solar water heater can be used normally in winter, must just to solve solar water heater preventing freeze in winter stifled The swollen problem low with water pressure.
There are many kinds of the existing methods for solving solar water heater preventing freeze in winter, have hydrocone type, mechanical, electromagnetic type, Electric subsidiary conduit heated type etc., but in addition to electricity auxiliary heating, principle be substantially using differential water pressures and using triple valve and Water in upper and lower conduit is discharged for atmosphere contact, and achievees the purpose that water pipe empties by the control of electronic or electromagnetic remote, in benefit It is remotely controlled with solenoid valve.Existing solar water heater emptying technology mainly has siphon emptying and electric atmospheric relief valve emptying skill Art, still, existing siphon emptying technology are exactly after emptying due to necessary last point of cold water there are a fatal weakness Siphon could be formed, so cannot achieve the effect that opening is hot water;Electric atmospheric relief valve water discharge technology equally also has a cause The weakness of life, i.e., there are open discharging valve hot water when U-bend, after emptying to be unable to come down for pipeline indoors.While both technologies are all The low problem of drop hour hydraulic pressure is not can solve.
Therefore, how to provide that a kind of hydraulic pressure is big, an auxiliary device for opening i.e. hot solar water heater is art technology The problem of personnel's urgent need to resolve.
Summary of the invention
In view of this, the present invention provides a kind of auxiliary device of solar water heater, it is versatile, it is suitable for existing The solar water heater of various models and water-out manners;It is compact-sized, it is easy for installation;Production is simple, and material therefor is in the market very It is easy to get, does not need special equipment, and diversion, pressurization, emptying three major issues can be solved simultaneously, due to diversion and emptying Time is very short, and power of motor very little when pressurization, so very energy saving, service life of equipment is also grown, and can be reminded using button switch User should close power supply in time when not in use, reach energy-saving effect, force emptying can thoroughly will be in upper and lower conduit Water empties, the enhancing of preventing freeze in winter significant effect.
To achieve the goals above, the invention provides the following technical scheme:
A kind of auxiliary device of solar water heater, the water tank including solar water heater further include upper and lower conduit, emptying Device, fluid level control device, signal wire, water mixing valve and auxiliary device assembly;The water route up and down is connect with the water tank, and is led to The water mixing valve is crossed to be attached with the auxiliary device assembly;Meanwhile described signal wire one end and the drainage control device Connection, the other end are connect with the auxiliary device assembly;The fluid level control device controls the water level in the water tank;The row Empty device includes suction hose and the first solenoid valve;First solenoid valve one end is connect with the suction hose, the other end and the external world Connection;The control terminal of first solenoid valve is connect with the signal wire;One end of the suction hose protrudes into the water tank from above Bottom, the other end are connect with the upper and lower conduit.
Through the above technical solution, technical effect of the invention: when needing hot water, hot-water valve is opened, is started miniature Water pump and second solenoid valve, upper and lower conduit form negative pressure, and the water in solar water heater water tank is by siphonage and continually Ground outflow, when hydraulic pressure is unsatisfactory for requiring, does not close the second button switch, at this moment reaches since micro pump is in running order To pressurization purpose;When without hot water, the water in upper and lower conduit enters air since first solenoid valve on top is opened, in gravity Under effect, the cold water in pipe is emptied through water outlet equipment;Press the second button switch again when water outlet equipment does not have hot water outflow, By upper and lower conduit and there can be the water in U-shaped trap thoroughly to empty.
Preferably, in a kind of above-mentioned auxiliary device of solar water heater, the fluid level control device includes: upper water Pipe, water feeding one-way valve, suction hose, ball-cock assembly, goes out water one-way valve and the first solenoid valve at downcomer;Described upper and lower conduit one end with The water mixing valve connection;The other end is connect with upper hose, downcomer respectively by triple valve;Installed on the upper hose it is described into Water one-way valve;The water one-way valve out is installed on the downcomer;The upper hose is connect with the bottom of the water tank, and institute The installation ball-cock assembly in water tank is stated, the cistern water level is controlled;The downcomer is connected to the suction hose;First electricity Magnet valve one end is connect with the suction hose, and the other end is in communication with the outside;The control terminal of first solenoid valve and the signal wire Connection.
Preferably, in a kind of above-mentioned auxiliary device of solar water heater, fluid level control device includes: that water-temperature water-level is aobvious Show controller;Upper and lower conduit is connect with suction hose;Upper and lower conduit is connect with water mixing valve;Water-temperature water-level display controller passes through second Signal wire is connect with the water-temperature water-level sensor in water tank, to monitor the water temperature in water tank, water level etc..
Preferably, in a kind of above-mentioned auxiliary device of solar water heater, the auxiliary device assembly includes: Miniature water Pump, second solenoid valve, the first button switch and the second button switch;First button switch and first solenoid valve connect It connects;Second button switch is electrically connected with the second solenoid valve and the micro pump respectively;The second solenoid valve One end is connect with the efferent duct of the water mixing valve, and the other end is connect with the pump water inlet of the micro pump;The Miniature water The pumping line of pump flows out hot water.
Preferably, in a kind of above-mentioned auxiliary device of solar water heater, the input pipe of the water mixing valve respectively with institute State upper and lower conduit, cold water inlet connection;The efferent duct of the water mixing valve is connect with the pump water inlet.
Preferably, in a kind of above-mentioned auxiliary device of solar water heater, the water feeding one-way valve and the water outlet are single It is connected to valve along water (flow) direction.
Preferably, in a kind of above-mentioned auxiliary device of solar water heater, the efferent duct of the water mixing valve also with it is described Pumping line connection;And indoor check valve is set on pipeline.
Preferably, in a kind of above-mentioned auxiliary device of solar water heater, the interior check valve is led along water (flow) direction It is logical.
Further, the suction hose uses upper drainage, and the water in upper and lower conduit is opened due to first solenoid valve on top And enters air and under the effect of gravity empty the cold water in pipe through water outlet equipment.
Preferably, in a kind of above-mentioned auxiliary device of solar water heater, first button switch and described second Button switch is band button.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides a kind of solar waters The auxiliary device of device, versatile, the solar water heater suitable for existing various models and water-out manners;It is compact-sized, It is easy for installation;Production is simple, and material therefor is readily available in the market, does not need special equipment, and can solve to draw simultaneously Water, pressurization, emptying three major issues, since diversion and emptying time are very short, power of motor very little when pressurization, thus it is very energy saving, Service life of equipment is also grown, and can be reminded user that should close power supply in time when not in use using button switch, be reached energy saving effect Fruit forces emptying that can thoroughly empty the water in upper and lower conduit, the enhancing of preventing freeze in winter significant effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is one structural schematic diagram of the embodiment of the present invention;
Fig. 2 attached drawing is two structural schematic diagram of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
It is versatile the embodiment of the invention discloses a kind of auxiliary device of solar water heater, it is suitable for existing each The solar water heater of kind model and water-out manners;It is compact-sized, it is easy for installation;Production is simple, and material therefor holds very much in the market Be easy to get to, do not need special equipment, and can solve simultaneously diversion, pressurization, emptying three major issues, due to diversion and emptying when Between it is very short, power of motor very little when pressurization, so very energy saving, service life of equipment is also grown, and can be reminded using button switch is made User should close power supply in time when not in use, reach energy-saving effect, force emptying can be thoroughly by the water in upper and lower conduit It empties, the enhancing of preventing freeze in winter significant effect.
A kind of auxiliary device of solar water heater, the water tank 1 including solar water heater further include upper and lower conduit 7, row Empty device, fluid level control device, signal wire 18, water mixing valve 8 and auxiliary device assembly 17;Upper and lower conduit 7 is connect with water tank 1, and It is attached by water mixing valve 8 and auxiliary device assembly 17;Meanwhile 18 one end of signal wire is connect with fluid level control device, it is another End is connect with auxiliary device assembly 17;Fluid level control device controls the water level in water tank 1.Emptier includes suction hose 4 and One solenoid valve 5;First solenoid valve, 5 one end is connect with suction hose 4, and the other end is in communication with the outside;The control terminal of first solenoid valve 5 with Signal wire 18 connects;One end of suction hose 4 protrudes into 1 bottom of water tank from above, and the other end is connect with upper and lower conduit 7.
In an embodiment of the present invention, fluid level control device includes: upper hose 71, downcomer 72, water feeding one-way valve 3, floats Ball valve 2 goes out water one-way valve 6;7 one end of upper and lower conduit is connect with water mixing valve 8;The other end by triple valve respectively with upper hose 71, Downcomer 72 connects;Water feeding one-way valve 3 is installed on upper hose 71;Water one-way valve 6 is installed out on downcomer 72;Upper hose 71 and water The bottom of case 1 connects, and ball-cock assembly 2 is installed in water tank 1, controls 1 water level of water tank;Downcomer 72 is connected to suction hose 4.
In an embodiment of the present invention, auxiliary device assembly 17 include: micro pump 11, second solenoid valve 10, first by Button switch 12 and the second button switch 13;First button switch 12 is connect with the first solenoid valve 5;Second button switch 13 respectively with Second solenoid valve 10 and micro pump 11 are electrically connected;10 one end of second solenoid valve is connect with the efferent duct of water mixing valve 8, the other end It is connect with the pump water inlet 9 of micro pump 11;The pumping line 14 of micro pump 11 flows out hot water.
In an embodiment of the present invention, the input pipe of water mixing valve 8 is connect with upper and lower conduit 7, cold water inlet 15 respectively;It is mixed The efferent duct of water valve 8 is connect with pump water inlet 9.
In an embodiment of the present invention, water feeding one-way valve 3 and out water one-way valve 6 along water (flow) direction be connected.
In an embodiment of the present invention, the efferent duct of water mixing valve 8 is also connect with pumping line 14;And it is arranged on pipeline Indoor check valve 16.
In an embodiment of the present invention, indoor check valve 16 is connected along water (flow) direction.
In an embodiment of the present invention, suction hose 4 protrudes into 1 bottom of water tank.
In an embodiment of the present invention, the first button switch 12 and the second button are band button.
In another embodiment, fluid level control device includes: water-temperature water-level display controller;Upper and lower conduit 7 and suction hose 4 Connection;Upper and lower conduit 7 is connect with water mixing valve 8;Water-temperature water-level display controller 20 passes through the water in second signal line 19 and water tank 1 Warm water level sensor connection, to monitor the water temperature in water tank 1, water level etc..
In another embodiment, 1 inner wall of water tank is equipped with temperature sensor, and the outer wall of water tank 1 is equipped with display device, temperature Degree sensor is connected with display device, the temperature in real-time display water tank.
It in another embodiment, further include warning device, warning device is connect with fluid level control device, the too low generation of water level Alarm, prevents dry combustion method, influences service life.
Embodiment one:
By taking ball-cock assembly controls solar water container water level as an example: as shown in Figure 1, when water on solar water heater water tank 1, it is cold Water enters through opening the water supply valve door of water mixing valve 8, upper and lower conduit 7, water feeding one-way valve 3,1 lower outlet of solar water heater water tank Water tank 1;After water tank 1 is full of, the water supply valve door of water mixing valve 8 is closed, the first button switch 12 with lamp bank sky is pressed, then opens The hot-water valve of water mixing valve 8, water in upper and lower conduit 7 are made since the first solenoid valve of top 5 enters air because of opening in gravity Under, the cold water in pipe is emptied through water outlet equipment;
When interior is needed using hot water, open water mixing valve 8 hot-water valve, press with lamp diversion, pressurization second by Button switch 13, the second solenoid valve 10 in micro pump 11 and auxiliary device start, and make to form negative pressure in upper and lower conduit 7, will too Hot water in positive energy water-heater water tank 1 is through suction hose 4, out water one-way valve 6, upper and lower conduit 7, water mixing valve 8,16 and of indoor check valve Hot water is discharged for auxiliary device assembly 17, water outlet equipment, and the second button switch 13, the sun can be closed when water pressure energy is met the requirements Water in energy water-heater water tank 1 is continuously flowed out by siphonage, when hydraulic pressure is unsatisfactory for requiring, is not closed second and is pressed At this moment button switch 13 reaches pressurization purpose since micro pump 11 is in running order.
When without hot water, the first button switch 12 is first pressed, the hot-water valve of water mixing valve 8 is then opened, closes water mixing valve 8 Cold water tap, the water in upper and lower conduit 7 enters air since first solenoid valve 5 on top is opened, under the effect of gravity, will Cold water in pipe is emptied through water outlet equipment;Press the second button switch 13 again when water outlet equipment does not have hot water outflow, it can will be upper Downcomer 7 and there is the water in U-shaped trap thoroughly to empty.
Embodiment two:
As shown in Fig. 2, water level control: when 1 water level of water-heater water tank is lower than setting water level, the water-temperature water-level in water tank is passed Sensor passes to water-temperature water-level display controller 20 through second signal line 19, by upper water signal, and water-temperature water-level display controller passes through Third signal wire 21 starts solenoid valve 22, and cold water passes through water mixing valve 8, upper and lower conduit 7, and water-heater water tank 1 is charged to by suction hose 4 Set water level.
Supplying hot water: when interior needs hot water, the second button switch 13 is pressed, starts second solenoid valve 10 and micro pump 11, hot water is through suction hose 4, upper and lower conduit 7, water mixing valve 8, second solenoid valve 10, micro pump 11, until watering equipment, at this moment exists In the case that pressure guarantees, second solenoid valve 10 and micro pump 11 can be closed, hot water is after water mixing valve 8, through indoor check valve 16, to watering equipment, when needing to be pressurized, do not close second solenoid valve 10 and micro pump 11, can play pressurization.
Emptying: when not having to hot water, pressing the first button switch 12, through signal wire 18, starts the first solenoid valve 5, up and down Water in water pipe 7 is in the open state in solenoid valve 5 by second and links up with the external world, the water in upper and lower conduit 7 through water mixing valve 8, Indoor check valve 16, watering equipment and empty.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (9)

1. a kind of auxiliary device of solar water heater, the water tank including solar water heater, which is characterized in that further include up and down Water pipe, emptier, fluid level control device, signal wire, water mixing valve and auxiliary device assembly;Water route and the water tank up and down Connection, and be attached by the water mixing valve and the auxiliary device assembly;Meanwhile described signal wire one end and the emptying Control device connection, the other end are connect with the auxiliary device assembly;The fluid level control device controls the water in the water tank Position;The emptier includes suction hose and the first solenoid valve;First solenoid valve one end is connect with the suction hose, another End is in communication with the outside;The control terminal of first solenoid valve is connect with the signal wire;One end of the suction hose is protruded into from above The water tank bottom, the other end are connect with the upper and lower conduit.
2. a kind of auxiliary device of solar water heater according to claim 1, which is characterized in that the Liquid level dress Set includes: upper hose, downcomer, water feeding one-way valve, ball-cock assembly, out water one-way valve;Described upper and lower conduit one end and the mixed water Valve connection;The other end is connect with upper hose, downcomer respectively by triple valve;The water inlet is installed unidirectional on the upper hose Valve;The water one-way valve out is installed on the downcomer;The upper hose is connect with the bottom of the water tank, and the water tank The interior installation ball-cock assembly, controls the cistern water level.
3. a kind of auxiliary device of solar water heater according to claim 1, which is characterized in that the Liquid level dress Setting includes: water-temperature water-level display controller;The upper and lower conduit is connect with the suction hose;The upper and lower conduit and the mixed water Valve connection;The water-temperature water-level display controller is connect by second signal line with the water-temperature water-level sensor in the water tank.
4. a kind of auxiliary device of solar water heater according to claim 2, which is characterized in that the auxiliary device is total At including: micro pump, second solenoid valve, the first button switch and the second button switch;First button switch with it is described The connection of first solenoid valve;Second button switch is electrically connected with the second solenoid valve and the micro pump respectively;Institute It states second solenoid valve one end to connect with the efferent duct of the water mixing valve, the pump water inlet of the other end and the micro pump connects It connects;The pumping line of the micro pump flows out hot water.
5. a kind of auxiliary device of solar water heater according to claim 1, which is characterized in that the water mixing valve it is defeated Enter pipe to connect with the upper and lower conduit, cold water inlet respectively;The efferent duct of the water mixing valve is connect with the pump water inlet.
6. a kind of auxiliary device of solar water heater according to claim 2, which is characterized in that the water feeding one-way valve It is connected with the water one-way valve out along water (flow) direction.
7. a kind of auxiliary device of solar water heater according to claim 4 or 5, which is characterized in that the water mixing valve Efferent duct also connect with the pumping line;And indoor check valve is set on pipeline.
8. a kind of auxiliary device of solar water heater according to claim 7, which is characterized in that the interior check valve It is connected along water (flow) direction.
9. a kind of auxiliary device of solar water heater according to claim 4, which is characterized in that first button is opened It closes and second button is band button.
CN201910527988.XA 2019-06-18 2019-06-18 Auxiliary device of solar water heater Expired - Fee Related CN110332724B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910527988.XA CN110332724B (en) 2019-06-18 2019-06-18 Auxiliary device of solar water heater

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Application Number Priority Date Filing Date Title
CN201910527988.XA CN110332724B (en) 2019-06-18 2019-06-18 Auxiliary device of solar water heater

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CN110332724A true CN110332724A (en) 2019-10-15
CN110332724B CN110332724B (en) 2021-03-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111964285A (en) * 2019-11-28 2020-11-20 李平 A pipeline energy-saving evacuator
CN115164401A (en) * 2022-06-21 2022-10-11 深圳市普道电器有限公司 A heating device and its control method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027821A (en) * 1975-07-18 1977-06-07 International Telephone And Telegraph Corporation Solar heating/cooling system
CN201014806Y (en) * 2007-01-13 2008-01-30 王世播 The emptying device of the upper and lower water pipes of the solar water heater
CN104422180A (en) * 2013-09-05 2015-03-18 苏州开来新能源有限公司 Up-water and down-water temperature control device applied to solar water heater and having function of preventing mixture of cold water and hot water
CN105444439A (en) * 2015-12-08 2016-03-30 芜湖恒美电热器具有限公司 Solar water heater with adjustable pressure and temperature

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027821A (en) * 1975-07-18 1977-06-07 International Telephone And Telegraph Corporation Solar heating/cooling system
CN201014806Y (en) * 2007-01-13 2008-01-30 王世播 The emptying device of the upper and lower water pipes of the solar water heater
CN104422180A (en) * 2013-09-05 2015-03-18 苏州开来新能源有限公司 Up-water and down-water temperature control device applied to solar water heater and having function of preventing mixture of cold water and hot water
CN105444439A (en) * 2015-12-08 2016-03-30 芜湖恒美电热器具有限公司 Solar water heater with adjustable pressure and temperature

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111964285A (en) * 2019-11-28 2020-11-20 李平 A pipeline energy-saving evacuator
CN111964285B (en) * 2019-11-28 2025-02-11 李平 A pipeline energy-saving drainer
CN115164401A (en) * 2022-06-21 2022-10-11 深圳市普道电器有限公司 A heating device and its control method

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Granted publication date: 20210305