CN203100186U - Automatic water returning circulating water-saving device of water heater - Google Patents
Automatic water returning circulating water-saving device of water heater Download PDFInfo
- Publication number
- CN203100186U CN203100186U CN 201320037844 CN201320037844U CN203100186U CN 203100186 U CN203100186 U CN 203100186U CN 201320037844 CN201320037844 CN 201320037844 CN 201320037844 U CN201320037844 U CN 201320037844U CN 203100186 U CN203100186 U CN 203100186U
- Authority
- CN
- China
- Prior art keywords
- water
- pipeline
- side pipeline
- cold
- water heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The utility model discloses an automatic water returning circulating water-saving device of a water heater, and belongs to the technical field of water heater water conservation. The automatic water returning circulating water-saving device of the water heater is composed of an H-shaped pipeline which is formed by a left side pipeline, a right side pipeline, and a level pipeline. The automatic water returning circulating water-saving device of the water heater is characterized in that the left side pipeline is a hot water supplying pipeline, the lower port of the left side pipeline is a hot water inlet (5), the lower port of the right side pipeline is a hot water outlet (1), the upper half portion of the left side pipeline is provided with a water outlet magnetic valve (2), the right side pipeline is a cold water supplying pipeline, the lower port of the right side pipeline is a cold water inlet (9), the upper port of the right side pipeline is a cold water outlet (3), and the lower half portion of the left side pipeline, the level pipeline, the lower half portion of the right side pipeline form a cold water return pipeline. A water return line does not need to be additionally installed on the water-saving device independently, and reconstruction to walls is not needed, so that the water-saving device can simply and automatically enable part of cold water remained in a hot water pipe before heating every time to flow back to the water heater, and therefore the purposes of energy conservation and water conservation are achieved.
Description
Technical field
The automatic backwater circulation water saving fixtures of water heater belong to the water heater water-saving technology field.Be specifically related to a kind of automatic water recovery apparatus of cold water of pot-type boiler.
Background technology
At present, water heater is extensive use of by family as a kind of common equipment.Water heater on the market mainly comprises concentrated mode of heatings such as electrical heating, combustion gas heating and solar energy heating at present.Increasing and quality of life improves constantly along with the area in resident house, the initial hot water that only provides when having a bath not only is provided water heater, a lot of aspects of daily life all need to use hot water, and this just need guide to the hot water in the water heater within doors a plurality of positions for use.Yet, because the various restrictions when water heater is installed, within doors each need use hot water the place will and the thermal water source of water heater between have long distance, even need draw (solar energy heating) from roof, with regard to inevitable a problem appearred like this: because pipeline is long and water heater needs the regular hour with the cold water heating, after to such an extent as to tap is opened, can at first flow out the cold water of a period of time, in the sky when cold and pipeline when longer this phenomenon particularly evident, and generally speaking, this part water has just wasted, and if things go on like this can cause a large amount of consumption of water resource.And that the method that solves this phenomenon at present has is following several:
1, cold water pipe is heated by resistance wire, but this mode can consume a large amount of energy;
2, in the water heater water inlet water recovery apparatus is set, is installing back water pipe or check valve with water end (W.E.), with the hot water pipeline cold-water reflux that begins most cold water inlet, when the flow of hot water operation that then discharges water again to water heater.But this mode has following concentrated drawback at present: (1), independent return pipe need be set, have in addition need transform wall; (2), need switch manually with before the hot water, can't realize the automatic switchover of current each; (3), pipeline is long more, realizes that the power of the electrical appliance that cold-water reflux switches is just big more, consumes a large amount of electric energy.(4), only be applicable to gas heater.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of need not to set up separately water return pipeline and wall transformed can be automatically will remain in part cold-water reflux in the hot-water line before the each heating of water heater in water heater, thereby reach the automatic backwater circulation water saving fixtures of water heater of the purpose of energy-saving and water-saving.
The technical scheme that its technical problem that solves the utility model adopts is: the automatic backwater circulation water saving fixtures of this water heater, the left side pipeline that comprises vertical setting, right side pipeline and place left side pipeline and pipeline middle part, right side that left side pipeline and right side pipeline are divided into two-part horizontal pipeline up and down, horizontal pipeline is connected left side pipeline and right side pipeline, " H " type of formation pipeline, it is characterized in that: described left side pipeline is the hot water feeding pipe road, the lower port of left side pipeline is a water inlet of hot water, upper port is a hot water outlet, the first half of left side pipeline is equipped with out water solenoid valve, described right side pipeline is the cold water supply channel, the lower port of right side pipeline is a cold water inlet, and upper port is the cold water delivery port; The latter half of the latter half, horizontal pipeline and the right side pipeline of left side pipeline constitutes the cold-water reflux pipeline.
The latter half of left side pipeline in the described cold-water reflux pipeline is equipped with flow monitoring device and device for detecting temperature from top to bottom successively, and horizontal pipeline is equipped with backwater magnetic valve and micro pump from left to right successively.
It is described that to go out water solenoid valve be normally open solenoid valve.
Described backwater magnetic valve is a normally closed solenoid valve.
The latter half of described left side pipeline is equipped with second device for detecting temperature.
Compared with prior art, the beneficial effect that has of the present utility model is:
1, the utility model can flow back into the former that part of cold water that remain in the hot-water line of the each heating of water heater in the water heater automatically by reflux and heat, when water temperature reaches uniform temperature, water outlet eloquence begins water outlet, thereby reach the purpose of energy-saving and water-saving, save water resource, reduced user's water rate spending;
2, applied range: be applicable to gas heater, electric heater, solar water heater, any water heater such as air-source water heater;
3. easy for installation: do not need to bury underground in advance water return pipeline, metope is reserved installation site etc., and it is attractive in appearance to install and can not destroy existing decorated style at any time;
4. easy to use: without any need for manual operation control, remote control is set.Only need turn on the tap and can save water and energy by automatic backwater, effectively simple;
5, energy-conserving and environment-protective: senser elements such as magnetic valve, micro pump and temperature flow carry out low-voltage, and the low-power power supply has been saved electric energy to a great extent when saving the water source, in use can not cause other any pollutions simultaneously.
Description of drawings
Fig. 1 is the automatic backwater circulation water saving fixtures of water heater structural representations.
Fig. 2 is the automatic backwater circulation water saving fixtures of water heater scheme of installations.
Fig. 3 is the automatic backwater circulation water saving fixtures of a water heater control circuit schematic diagram.
Fig. 4 is the automatic backwater circulation water saving fixtures of water heater embodiment 2 structural representations.
Fig. 5 is the automatic backwater circulation water saving fixtures of water heater embodiment 2 control circuit schematic diagrams.
Wherein: 1, hot water outlet 2, go out water solenoid valve 3, cold water delivery port 4, micro pump 5, water inlet of hot water 6, flow monitoring device 7, device for detecting temperature 8, backwater magnetic valve 9, cold water inlet 10, water heater 11, water saving fixtures 12, cold water pipeline 13, hot water line 14, running water water inlet 15, second device for detecting temperature.
The specific embodiment
Fig. 1 ~ 3rd, most preferred embodiment of the present utility model is described further below in conjunction with 1 ~ 5 pair of the utility model of accompanying drawing.
As shown in Figure 1, the automatic backwater circulation water saving fixtures of water heater of the present utility model (to call water saving fixtures in the following text) are " H " type pipeline, form by left side pipeline, right side pipeline and with the horizontal pipeline that left side light path and right side pipeline link.Wherein the left side pipeline is the hot water feeding pipe road of tap, and the right side pipeline is the cold water supply channel of tap.Horizontal pipeline is divided into two parts up and down with left side pipeline and right side pipeline simultaneously, and the latter half of the latter half of left side pipeline and right side pipeline and horizontal pipeline have constituted the cold-water reflux pipeline of realizing cold-water reflux in the pipeline of left side.
The latter half of left side pipeline is equipped with flow monitoring device 6 and device for detecting temperature 7 from top to bottom successively, and the first half is equipped with out water solenoid valve 2.The upper port of left side pipeline is a water inlet of hot water 5, and upper port is a hot water outlet 1.Right side pipeline lower port is a cold water inlet 9, and upper port is a cold water delivery port 3.Backwater magnetic valve 8 and micro pump 4 are installed on the horizontal pipeline from left to right successively.In the present embodiment, flow monitoring device 6 is used to detect the discharge in the pipeline of left side, and device for detecting temperature 7 is used to detect the temperature of water in the pipeline of left side.Go out water solenoid valve 2 and be normally open solenoid valve, backwater magnetic valve 8 is a normally closed solenoid valve.
As shown in Figure 2, water saving fixtures 11 are installed in entry place of the tap of each hot water that need use, and its hot water outlet 1 and cold water delivery port 3 are connected with two inlets of the hot and cold water of tap respectively.Running water water inlet 14 connects inlet and the cold water pipeline 12 that is positioned at right side, water heater 10 lower end simultaneously, and cold water pipeline 12 connects the cold water inlet 9 of water saving fixtures 11 simultaneously successively.The cold water that is entered by water heater 10 inlet becomes hot water finish heating in water heater 10 after, hot water is flowed out by the outlet that is positioned at left side, water heater 10 belows, the outlet of water heater 10 links to each other with hot water line 13, and hot water line 13 connects the water inlet of hot water 5 of all water saving fixtures 11 simultaneously successively.
Be illustrated in figure 3 as control circuit schematic diagram of the present utility model.The primary winding of transformer B1 links to each other with 220 AC powers, the secondary coil of transformer B1 links to each other with rectification circuit U1, transformer B1 is treated to the 24V AC power with the 220V AC power, and by rectification circuit U1 the rectification of 24V AC power is become the 24V dc source.The positive pole of 24V dc source is connected after normally closed switch S1 and the normal open switch S2 simultaneously successively, and magnetic valve F1(in parallel promptly goes out water solenoid valve 2), magnetic valve F2(is backwater magnetic valve 8) and water pump M1(be micro pump 4) positive pole; The negative pole of 24V dc source magnetic valve F1(in parallel simultaneously promptly goes out water solenoid valve 2), magnetic valve F2(is backwater magnetic valve 8) and water pump M1(be micro pump 4) negative pole.
Normally closed switch S1 is controlled by device for detecting temperature 7 in this circuit, and when the water temperature in the water saving fixtures 11 left side pipelines rose to a certain design temperature, device for detecting temperature 7 control normally closed switch S1 disconnected.Normal open switch S2 is controlled by flow monitoring device 6, when the current in the water saving fixtures 11 left side pipelines begin to flow, and flow monitoring device 6 control normal open switch S2 closures.
The concrete course of work is as follows: when tap is not opened, do not have flow and water temperature lower in the left side pipeline of water saving fixtures 11 and the hot water line 13 who is attached thereto.Go out the state of water solenoid valve 2 for opening this moment, backwater magnetic valve 8 is a closing state, and micro pump 4 is not worked.When the user need use hot water and tap opened, there is the cold water of trace to flow out in the tap, flow monitoring device 6 is experienced flowing of in-pipe flow at this moment, control normal open switch S2 closure, this moment is because the interior water temperature of pipe is lower, normally closed switch S1 is closed equally, thereby magnetic valve F1(is promptly gone out water solenoid valve 2), magnetic valve F2(is a backwater magnetic valve 8) and water pump M1(be micro pump 4) operating circuit connect, going out water solenoid valve 2 closes after powering on, after powering on, opens by backwater magnetic valve 8, micro pump 4 is started working, the interior cold water cold water inlet 9 via water saving fixtures 11 under the promotion of micro pump 4 of pipe this moment is discharged, and is back to from left to right in the water heater 10 in cold water pipeline 12.Along with the continuous work of micro pump 4, the cold water in water saving fixtures 11 and the hot water line 13 constantly is back to the inlet of water heater 10 and enters water heater 10.Progressively to the water inlet of hot water 5 of water saving fixtures 11, after the circulation of the cold water hot water line 13 in finished, hot water was via water inlet of hot water 5 inflow water saving fixtures 11 via hot water line 13 for the water that finish heating by water heater 10 this moment.
In the process that current constantly circulate, device for detecting temperature 7 is constantly monitored the temperature in water route, when temperature rises to predefined temperature, device for detecting temperature 7 actions, and driving normally closed switch S1 disconnects, magnetic valve F1(is promptly gone out water solenoid valve 2), magnetic valve F2(is a backwater magnetic valve 8) and water pump M1(be micro pump 4) operating circuit cut off, reopen after going out water solenoid valve 2 dead electricity this moment, again close after backwater magnetic valve 8 dead electricity, micro pump 4 quits work, circulation hot water so far flows into tap through the left side pipeline of water saving fixtures 11, directly has hot water to flow out in the tap.
In the present embodiment, what temperature control part divided employing is temperature relay, and promptly device for detecting temperature 7 is the temperature-sensitive part of temperature relay, normally closed switch S1 is the normally-closed contact of temperature relay, when reaching uniform temperature, the temperature relay action, the normally-closed contact that drives in it disconnects.Can also realize that for example, device for detecting temperature 7 adopts temperature sensor to carry out the monitoring of temperature, and temperature is passed in the single-chip microcomputer by other modes, normally closed switch S1 can adopt common relay.After reaching uniform temperature, by the folding of Single-chip Controlling relay.
In the present embodiment, what flow-control was partly adopted is flow switch, and promptly flow monitoring device 6 is the flow monitoring part of flow switch, and normal open switch S2 is the normally opened contact of flow switch, when in the pipe flow being arranged, drives the normally opened contact closure in it.Can also realize that for example, flow monitoring device 6 adopts flow sensor, and flow signal is passed in the single-chip microcomputer by other modes, normally closed switch S2 can adopt common relay.When in the pipe flow being arranged, by the folding of Single-chip Controlling relay.
In the present embodiment, described tap is for using the dual-purpose faucet of cold water and hot water simultaneously.
In the present embodiment, when water heater 10 adopt be solar water heater the time, because solar water heater generally is installed in roof, so when just having begun to fetch boiling water tap, cold water in the pipe can't be back in the solar water heater under the effect of micro pump 4, the pump water pressure of micro pump 4 is greater than running water pipe network pressure at this moment, and cold water can be back in the running water pipe network under the driving of micro pump 4; When water heater 10 adopt be other water heaters except solar water heater the time, when just having begun to fetch boiling water tap, the cold water in the pipe can flow back in the water heater 10 next time in the effect of micro pump 4.
When using gas heater, except having some defectives that have with other water heaters, also has the another one feature: when normal hot water is supplied, use hot water as the needs Halfway Stopping, close tap a period of time when fetching boiling water tap once more, at first can flow out a certain amount of cold water (or warm water in the tap, decide on the time of cutting off the water midway), can flow out one section water that water temperature is very high then, can flow out one section cold water identical after the current that temperature is very high are intact with the running water water temperature, what flow out subsequently is the hot water of normal water temperature, and the cold water of water that this section temperature is very high and outflow subsequently can be bled off the waste that causes the water source generally speaking.When using the embodiment of embodiment 1 employing, as described in example 1 above, before the very high water of temperature and cold water afterwards can flow back to water heater next time in the control of water saving fixtures 11, but the very high water of this section water temperature that gas heater causes still can flow out in tap.If the user can be with user's skin scald under this temperature when bathing, the user can bleed off by the water that this section water temperature is very high generally speaking, if things go on like this still can cause the waste at water source to a certain extent.
As shown in Figure 4, second device for detecting temperature 15 is installed on the left side pipeline of " H " type water saving fixtures 11, second device for detecting temperature 15 is installed between the connector and water inlet of hot water 5 of the left side pipeline of water saving fixtures 11 and horizontal pipeline, and the water of higher temperature is monitored.The setting of other devices is identical with embodiment 1.
Be illustrated in figure 5 as control circuit schematic diagram of the present utility model.The primary winding of transformer B2 links to each other with 220 AC powers, the secondary coil of transformer B2 links to each other with rectification circuit U2, transformer B1 is treated to the 24V AC power with the 220V AC power, and by rectification circuit U2 the rectification of 24V AC power is become the 24V dc source.The positive pole of 24V dc source is connected after normally closed switch S3 and the normal open switch S5 simultaneously successively, and magnetic valve F3(in parallel promptly goes out water solenoid valve 2), magnetic valve F4(is backwater magnetic valve 8) and water pump M2(be micro pump 4) positive pole; The negative pole of 24V dc source magnetic valve F3(in parallel simultaneously promptly goes out water solenoid valve 2), magnetic valve F4(is backwater magnetic valve 8) and water pump M2(be micro pump 4) negative pole.Normally closed switch S3 two ends are normal open switch S4 in parallel simultaneously.
Normally closed switch S3 is controlled by device for detecting temperature 7 in this circuit, and when the water temperature in the water saving fixtures 11 left side pipelines was lower than predefined lowest temperature value, device for detecting temperature 7 was failure to actuate, normally closed switch S3 closure; When water temperature was higher than predefined lowest temperature value, device for detecting temperature 7 control normally closed switch S3 disconnected.Normal open switch S4 is by the control of second device for detecting temperature 15, and when water temperature was lower than predefined higher limit, second device for detecting temperature 15 was failure to actuate, when water temperature is higher than predefined higher limit, and second device for detecting temperature, 15 control normal open switch S4 closures.Normal open switch S5 is controlled by flow monitoring device 6, when the current in the water saving fixtures 11 left side pipelines begin to flow, and flow monitoring device 6 control normal open switch S5 closures.
In sum, when in the pipeline of water saving fixtures left side flow being arranged, normal open switch S5 can be closed, under this prerequisite, when water temperature is lower than lower limit or be higher than the water temperature higher limit, normally closed switch S3 and normal open switch S4 wherein have a closure, and magnetic valve F3(is promptly gone out water solenoid valve 2), magnetic valve F4(is backwater magnetic valve 8) and water pump M2(be micro pump 4) current supply circuit connect, can not there are flowing out in the tap; When water temperature is between temperature upper limit and lower limit, normally closed switch S3 and normal open switch S4 disconnect simultaneously, magnetic valve F3(is promptly gone out water solenoid valve 2), magnetic valve F4(is backwater magnetic valve 8) and water pump M2(be micro pump 4) current supply circuit cut off, just can flow out the hot water of suitable temperature in the tap.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (5)
1. automatic backwater circulation water saving fixtures of water heater, the left side pipeline that comprises vertical setting, right side pipeline and place left side pipeline and pipeline middle part, right side that left side pipeline and right side pipeline are divided into two-part horizontal pipeline up and down, horizontal pipeline is connected left side pipeline and right side pipeline, " H " type of formation pipeline, it is characterized in that: described left side pipeline is the hot water feeding pipe road, the lower port of left side pipeline is water inlet of hot water (5), upper port is hot water outlet (1), the first half of left side pipeline is equipped with out water solenoid valve (2), described right side pipeline is the cold water supply channel, the lower port of right side pipeline is cold water inlet (9), and upper port is cold water delivery port (3); The latter half of the latter half, horizontal pipeline and the right side pipeline of left side pipeline constitutes the cold-water reflux pipeline.
2. the automatic backwater circulation water saving fixtures of water heater according to claim 1, it is characterized in that: the latter half of the left side pipeline in the described cold-water reflux pipeline is equipped with flow monitoring device (6) and device for detecting temperature (7) from top to bottom successively, and horizontal pipeline is equipped with backwater magnetic valve (8) and micro pump (4) from left to right successively.
3. the automatic backwater circulation water saving fixtures of water heater according to claim 2 is characterized in that: described to go out water solenoid valve (2) be normally open solenoid valve.
4. the automatic backwater circulation water saving fixtures of water heater according to claim 2 is characterized in that: described backwater magnetic valve (8) is a normally closed solenoid valve.
5. the automatic backwater circulation water saving fixtures of water heater according to claim 2 is characterized in that: the latter half of described left side pipeline is equipped with second device for detecting temperature (15)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037844 CN203100186U (en) | 2013-01-24 | 2013-01-24 | Automatic water returning circulating water-saving device of water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320037844 CN203100186U (en) | 2013-01-24 | 2013-01-24 | Automatic water returning circulating water-saving device of water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203100186U true CN203100186U (en) | 2013-07-31 |
Family
ID=48851581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320037844 Expired - Fee Related CN203100186U (en) | 2013-01-24 | 2013-01-24 | Automatic water returning circulating water-saving device of water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203100186U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386082A (en) * | 2014-11-17 | 2015-03-04 | 安徽安凯汽车股份有限公司 | Clean water tank system for coach toilet in cold area and control method of clean water tank system |
| CN105627567A (en) * | 2016-02-01 | 2016-06-01 | 冯秦 | System based on realization of cyclic utilization of liquid |
| CN106766216A (en) * | 2016-11-11 | 2017-05-31 | 广东美的暖通设备有限公司 | A kind of intelligent backwater control method, controller and control system |
| CN110160268A (en) * | 2018-02-11 | 2019-08-23 | 胡有根 | A kind of water-saving intelligent water circulating system and method |
| CN110260528A (en) * | 2019-07-10 | 2019-09-20 | 重庆益美特自动化科技有限公司 | Novel energy-conserving water-heater system |
| CN111998527A (en) * | 2020-08-20 | 2020-11-27 | 临海伟星新型建材有限公司 | Instant-heating hot water circulating system and operation method thereof |
| CN113465186A (en) * | 2021-07-28 | 2021-10-01 | 广东万和新电气股份有限公司 | Gas water heater and control method thereof |
-
2013
- 2013-01-24 CN CN 201320037844 patent/CN203100186U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386082A (en) * | 2014-11-17 | 2015-03-04 | 安徽安凯汽车股份有限公司 | Clean water tank system for coach toilet in cold area and control method of clean water tank system |
| CN105627567A (en) * | 2016-02-01 | 2016-06-01 | 冯秦 | System based on realization of cyclic utilization of liquid |
| CN105627567B (en) * | 2016-02-01 | 2019-02-22 | 冯秦 | Based on the system for realizing that liquid circulation utilizes |
| CN106766216A (en) * | 2016-11-11 | 2017-05-31 | 广东美的暖通设备有限公司 | A kind of intelligent backwater control method, controller and control system |
| CN110160268A (en) * | 2018-02-11 | 2019-08-23 | 胡有根 | A kind of water-saving intelligent water circulating system and method |
| CN110260528A (en) * | 2019-07-10 | 2019-09-20 | 重庆益美特自动化科技有限公司 | Novel energy-conserving water-heater system |
| CN111998527A (en) * | 2020-08-20 | 2020-11-27 | 临海伟星新型建材有限公司 | Instant-heating hot water circulating system and operation method thereof |
| CN113465186A (en) * | 2021-07-28 | 2021-10-01 | 广东万和新电气股份有限公司 | Gas water heater and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203100186U (en) | Automatic water returning circulating water-saving device of water heater | |
| CN205593157U (en) | Water -saving gas water heater | |
| CN103277924A (en) | System and method for intelligent hot water circulation control and domestic solar water heater | |
| CN201423321Y (en) | Automatic starting controlled shower head | |
| CN204555334U (en) | A kind of water-saving device of water heater | |
| CN205191930U (en) | Energy -conserving water saving fixtures | |
| CN205037579U (en) | Water -heater water saving system | |
| CN208202023U (en) | A kind of Mousehold water saving intelligence water storage device | |
| CN101975478A (en) | Instant heating type indoor thermal insulation water storage tank of solar water heater | |
| CN205351795U (en) | Water heater section water control device that delays with constant temperature | |
| CN203286785U (en) | Hot water intelligent circulation control system and household solar water heater | |
| CN209341560U (en) | Air-gas source heat pump and the double heat source domestic water-heating systems of combustion gas-solar energy | |
| CN205825402U (en) | A kind of energy-saving and water-saving water heater | |
| CN205641572U (en) | Intelligence hot water supply water saving fixtures | |
| CN203036763U (en) | Hotel domestic hot water energy saving device | |
| CN102620431A (en) | Water saving device applicable to various water heaters | |
| CN205641110U (en) | Solar energy reaches system of preventing frostbite with hanging stove in coordination with heat supply water | |
| CN202350160U (en) | Bathroom centralized heating equipment | |
| CN107560147B (en) | Household air source heat pump hot water system assisted by gas wall-mounted boiler and control method thereof | |
| CN204445613U (en) | Without the cold shower device | |
| CN205065891U (en) | Energy -saving bathroom underfloor heating system | |
| CN205448372U (en) | Supplementary intelligence control system of solar heating domestic water central authorities of heat pump | |
| CN205481881U (en) | Remote intelligent water conservation shower system | |
| CN204923474U (en) | Hot -water line heating heat preservation device of water heater | |
| CN204460438U (en) | Intelligent bathroom water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20160124 |
|
| EXPY | Termination of patent right or utility model |