CN110887233A - Device and method for recycling cold water at front section of water heater - Google Patents
Device and method for recycling cold water at front section of water heater Download PDFInfo
- Publication number
- CN110887233A CN110887233A CN201911267785.8A CN201911267785A CN110887233A CN 110887233 A CN110887233 A CN 110887233A CN 201911267785 A CN201911267785 A CN 201911267785A CN 110887233 A CN110887233 A CN 110887233A
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- water
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- outlet pipeline
- cold water
- water outlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 348
- 238000004064 recycling Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 210000005239 tubule Anatomy 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to the technical field of water saving, and particularly discloses a device and a method for recycling cold water at the front section of a water heater, wherein the device comprises an electric control system, a water storage tank and a valve which is arranged on a hot water outlet pipeline and is close to a water outlet mechanism; the valve is communicated with the water storage tank, the water storage tank is communicated with the valve through a recycled water outlet pipeline, and a water pump capable of controlling flow is arranged on the recycled water outlet pipeline; the electric control system comprises a controller and a first temperature sensor, wherein the first temperature sensor is arranged in the valve or close to the valve; the controller is in communication connection with the water pump, the valve and the first temperature sensor, and the electric control system controls the valve to be selectively communicated with the water outlet mechanism, the water storage tank or the recycled water outlet pipeline. The method comprises the following steps: and (3) leading cold water at the front section of the water heater to flow back to be mixed with water flow reaching the preset temperature. The device and the method provided by the invention recycle the cold water at the front section of the water heater, can achieve the effect of water saving, and are convenient and quick.
Description
Technical Field
The invention relates to the technical field of water saving, in particular to a device and a method for recycling cold water at the front section of a water heater.
Background
When domestic hot water, because the distance of water heater to tap is longer, always amasss surplus cold water in the water pipe, water heater heating needs a period of time or water heater discharge front end hot water and cold pipeline heat transfer and make initial use time with water end exhaust water temperature lower, anterior segment cold water can not reach human required comfortable temperature (like 43 ℃), often these cold water can be the white row sewer, cause the very big waste of water resource.
In order to avoid the waste of cold water at the front section, the existing mode is to collect and store the cold water and then transfer the cold water to be used for flushing a toilet or washing vegetables and the like, but the transfer process usually brings extra work for a user, and the convenience is not good enough.
In view of this, the present application is specifically made.
Disclosure of Invention
The invention aims to provide a device and a method for recycling cold water at the front section of a water heater, and aims to solve the problems that the cold water at the front section of the water heater is wasted, the cold water at the front section is difficult to be well utilized in the prior art, or the recycling process of the cold water at the front section is not convenient in the prior art.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment provides a cold water recycling device at a front section of a water heater, which comprises an electric control system, a water storage tank and a valve arranged on a hot water outlet pipeline and close to a water outlet mechanism;
the valve is communicated with the water storage tank through a connecting pipe, the water storage tank is communicated with the valve through a recycled water outlet pipeline, and a water pump capable of controlling flow is arranged on the recycled water outlet pipeline;
the electric control system comprises a controller and a first temperature sensor, wherein the first temperature sensor is arranged in the valve or is arranged at a position close to the valve on a hot water outlet pipeline between the water heater and the valve; the controller is in communication connection with the water pump, the valve and the first temperature sensor, and the electric control system controls the valve to be selectively communicated with the water outlet mechanism, the water storage tank or the recycled water outlet pipeline.
In an optional embodiment, the electronic control system further includes a flow regulator, the flow regulator is disposed on the recovered water outlet pipeline, and the flow regulator is in communication connection with the controller.
In an alternative embodiment, the ratio of the flow rate of the water in the recycled water outlet line to the flow rate of the water in the hot water outlet line is less than or equal to 1: 10.
In an optional embodiment, the recycled water outlet pipeline comprises a heat exchange thin pipe section, and the heat exchange thin pipe section is arranged in the wastewater drainage pipe;
in an alternative embodiment, a second temperature sensor is disposed within the waste drain pipe, the second temperature sensor being in communication with the controller.
In an alternative embodiment, the heat exchange tubule segments are stainless steel tubules.
In an alternative embodiment, the heat exchange slim tube section is spirally arranged in the wastewater drainage tube.
In an optional embodiment, the electronic control system further comprises a water pressure sensor, the water pressure sensor is arranged on the recovered water outlet pipeline and is positioned between the water storage tank and the water pump, or is arranged at the bottom of the water storage tank, and the water pressure sensor is in communication connection with the controller;
or the electric control system also comprises a water level detector which is arranged in the water storage tank and is in communication connection with the controller.
In an alternative embodiment, the recycled water outlet pipeline comprises a heat exchange thin pipe section, and the heat exchange thin pipe section is arranged on the ground of the shower room;
in an alternative embodiment, the heat exchange thin tube sections are distributed in a curved shape.
In a second aspect, an embodiment provides a method for recycling cold water at a front section of a water heater, including:
recovering and storing cold water discharged from the front section of the water heater;
when the water discharged by the water heater reaches a preset temperature, the stored cold water flows back to be mixed with the water flow reaching the preset temperature, and the flow rate of the cold water backflow is smaller than that of the water flow reaching the preset temperature so that the temperature of the mixed water flow formed by mixing the cold water with the water flow reaching the preset temperature is close to the preset temperature;
preferably, the ratio of the flow rate of the cold water return to the flow rate of the water flow reaching the preset temperature is less than or equal to 1: 10.
In an alternative embodiment, returning the cold water to the pre-set temperature before mixing with the water flow further comprises exchanging heat between the cold water and the waste hot water.
The beneficial effects of the embodiment of the invention include, for example:
according to the cold water recycling device at the front section of the water heater, due to the specific design of the electric control system, the valve, the flow regulator and the recycled water outlet pipeline, cold water at the front section of the water heater can be recycled as clean water, so that the effect of saving water is achieved; and because the total amount of anterior segment cold water is less than the hot water total amount that will use far away when a family uses the water heater under the normal condition, consequently this scheme can accomplish the use that can accomplish water heater anterior segment cold water when using hot water, no longer need additionally shift to other usage with cold water, for example wash the lavatory, wash the dish etc. more convenient to use.
According to the method for recycling the cold water at the front section of the water heater, provided by the embodiment of the invention, the cold water at the front section of the water heater is returned to be mixed with the hot water outlet water, and the temperature of the mixed water flow obtained by mixing the cold water with the water flow reaching the preset temperature is controlled to be close to the preset temperature, so that the cold water at the front section of the water heater can be recycled as clean water, and the effect of saving water is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a front-stage cold water recycling device of a water heater according to an embodiment of the present invention;
FIG. 2 is a diagram of a signal transmission path of the electronic control system according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a heat exchange tubule section disposed in a wastewater drain pipe according to a first embodiment of the present invention;
FIG. 4 is a schematic structural view of a second embodiment of the present invention in which heat exchange tubules are installed on the floor of a bathroom;
fig. 5 is a plan view of the heat exchange tubule of fig. 4 installed on the floor of the bathroom.
Icon: 10-a water heater; 11-a hot water outlet mechanism; 20-a spray head; 30-a waste water drain pipe; 100-a cold water recycling device at the front section of the water heater; 101-hot water outlet pipeline; 110-an electronic control system; 111-a controller; 112-a first temperature sensor; 113-a flow regulator; 114-a second temperature sensor; 115-water pressure sensor; 120-a valve; 130-a water storage tank; 140-a recycled water outlet pipeline; 141-heat exchange thin tube section; 150-water pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
First embodiment
Referring to fig. 1 and fig. 2, the present embodiment provides a cold water recycling device 100 at a front section of a water heater, which includes an electric control system 110, a water storage tank 130, and a valve 120 disposed on a hot water outlet pipeline 101 and close to a water outlet mechanism (such as a faucet or a bathroom shower).
The valve 120 is communicated with the water storage tank 130 through a connecting pipe, the water storage tank 130 is communicated with the valve 120 through a recycled water outlet pipeline 140, and a water pump 150 capable of controlling the flow is arranged on the recycled water outlet pipeline 140;
the electronic control system 110 includes a controller 111 and a first temperature sensor 112, wherein the first temperature sensor 112 is disposed in the valve 120; the controller 111 is in communication with the water pump 150, the valve 120, and the first temperature sensor 112, and the electronic control system 110 controls the valve 120 to selectively communicate with the water outlet mechanism, the water storage tank 130, or the recycled water outlet line 140.
When hot water is needed, the switch for controlling the on-off of the water heater is opened to enable the water heater 10 to work, and when the water heater 10 just starts to work, the temperature of the front section outlet water reaching the valve 120 is low. The first temperature sensor 112 detects the temperature of the water reaching the valve 120 or approaching the valve 120, and sends the temperature signal to the controller 111, the controller 111 compares the temperature signal with a preset temperature (i.e. the optimum temperature of the human body, such as 43 ℃), if the temperature does not reach the preset temperature, the controller 111 controls the valve 120 to open the channel of the recycled water outlet pipeline 140, the cold water in the previous stage is discharged into the water storage tank 130 for collection, when the first temperature sensor 112 detects that the temperature reaches the preset temperature, the controller controls the water pump 150 to work, and simultaneously controls the valve 120 to open the channel respectively communicating with the hot water outlet mechanism 11 and the recycled water outlet pipeline 140, the hot water outlet mechanism 11 starts to discharge the hot water, and at the same time, the cold water recycled under the action of the flow regulator 113 and the water pump 150 can flow back through the valve 120 to join with the hot water at a very small flow rate, although the temperature of the merged water is slightly lower than the optimum temperature, the use experience of the hot water is not influenced by slight temperature change.
It should be noted that the switch for controlling the on/off of the water heater may be additionally provided, or may be provided on the hot water outlet mechanism 11 or near the hot water outlet mechanism 11, and provided on the hot water outlet mechanism 11, and the switch is turned on when the hot water outlet mechanism 11 is turned on. The hot water outlet mechanism 11 mentioned in the present application includes, but is not limited to, a faucet and a shower head.
Therefore, due to the specific design of the electric control system, the valve, the flow regulator and the recycled water outlet pipeline, cold water at the front section of the water heater can be recycled as clean water, so that the effect of saving water is achieved; and because the total amount of anterior segment cold water is less than the hot water total amount that will use far away when a family uses the water heater under the normal condition, consequently this scheme can accomplish the use that can accomplish water heater anterior segment cold water when using hot water, no longer need additionally shift to other usage with cold water, for example wash the lavatory, wash the dish etc. more convenient to use.
It should be noted that in other embodiments of the present invention, the first temperature sensor 112 can also be disposed on the hot water outlet pipe 101 between the water heater 10 and the valve 120 near the valve 120.
Further, the electronic control system 110 further includes a flow regulator 113, and the flow regulator 113 is disposed on the recycled water outlet pipeline 140. The flow regulator 113 is communicatively coupled to the controller 111. The water pump 150 has a certain flow regulating effect, the flow regulator 113 is arranged for more accurately regulating and controlling the flow, when the flow regulator 113 is in communication connection with the controller 111, the controller 111 controls the flow regulator 113 to regulate the flow of the recovered water in the recovered water outlet pipeline 140 within a more accurate range when controlling the water pump 150 to work, the flow regulation is not required to be carried out manually, and the water pump is more intelligent and convenient.
Furthermore, in order to ensure that the temperature change is hard to be perceived by the user after the cold water and the hot water are mixed, the hot water using experience is better, and the ratio of the water flow in the recycled water outlet pipeline 140 to the water flow in the hot water outlet pipeline 101 is less than or equal to 1: 10.
Further, the recycled water outlet pipeline 140 includes a heat exchange thin pipe section 141, the heat exchange thin pipe section 141 is disposed in the waste water drain pipe 30, a second temperature sensor 114 is disposed in the waste water drain pipe 30, and the second temperature sensor 114 is in communication connection with the controller 111.
When the temperature of water heater 10 exhaust hot water when reaching valve 120 reaches and predetermines the temperature, hot water outlet mechanism 11 exhaust hot water, if the user uses hot water in the mode that adopts the shower, then useless hot water is discharged as the heat source from waste water drain pipe 30, retrieve cold water and carry out the heat transfer as cold source and useless hot water when passing through heat transfer tubule section 141, it is mixed with hot water to retrieve the backward flow after the cold water is heated, can further less mix the difference in temperature between hot water and the water heater exhaust hot water, can further improve and use experience.
Preferably, the heat exchange tube segments 141 are stainless steel tubes. The stainless steel tubule has good heat-conducting property and high strength.
Further, as shown in fig. 3, a heat exchange thin pipe section 141 is spirally disposed in the waste water drain pipe 30. The heat exchange thin tubes are distributed spirally, so that the heat exchange efficiency can be improved.
Further, the electronic control system 110 further includes a water pressure sensor 115, the water pressure sensor 115 is disposed on the recycled water outlet pipeline 140 and located between the water storage tank 130 and the water pump 150, and the water pressure sensor 115 is in communication connection with the controller 111.
The water pressure sensor 115 is used for detecting the water pressure in the water storage tank 130 and transmitting a water pressure signal to the controller 111, the controller 111 judges the water pressure according to the water pressure sensor 115, when the water amount in the water storage tank 130 is reduced, the water pressure is reduced, and when the water pressure sensor 115 detects that the water pressure is lower than a threshold value, the controller 111 controls the water pump 150 to stop working in order to avoid the water pump 150 from being damaged due to idling.
It should be noted that in other embodiments of the present invention, the water pressure sensor 115 may also be disposed at the bottom of the water storage tank 130.
Or, in order to avoid the idling of the water pump, a water level detector can be arranged in the water storage tank and is in communication connection with the controller. When the water level detector detects that the water level is low, the controller controls the water pump to stop working.
Second embodiment
The device provided by the embodiment of the present invention has the same implementation principle and technical effect as the first embodiment, and for the sake of brief description, corresponding contents in the first embodiment may be referred to for the non-mentioned points of the embodiment.
This embodiment is substantially the same as the first embodiment, and reference is made to the first embodiment where nothing is mentioned.
As shown in fig. 1, 4 and 5, in the present embodiment, the recycled water outlet pipe 140 includes a heat exchange thin pipe section 141, and the heat exchange thin pipe section 141 is disposed on the floor of the shower room below the spray head 20.
The arrangement enables the shower waste heat water to directly wash the heat exchange thin pipe section 141 to exchange heat for the recovered cold water passing through the heat exchange thin pipe section 141 during bathing.
Preferably, the heat exchange thin tube segments 141 are distributed in a curved shape to improve the heat exchange efficiency.
The invention also provides a recycling method of cold water at the front section of the water heater, which comprises the following steps:
recovering and storing cold water discharged from the front section of the water heater;
when the water discharged by the water heater reaches a preset temperature, the stored cold water flows back to be mixed with the water flow reaching the preset temperature, and the flow rate of the cold water backflow is smaller than that of the water flow reaching the preset temperature so that the temperature of the mixed water flow formed by mixing the cold water with the water flow reaching the preset temperature is close to the preset temperature;
preferably, the ratio of the flow rate of the cold water return to the flow rate of the water flow reaching the preset temperature is less than or equal to 1: 10.
Preferably, the step of returning the cold water to the pre-set temperature before mixing with the water flow further comprises exchanging heat between the cold water and the waste hot water. Therefore, the temperature of the cold water is increased, the temperature of the mixed water flow after mixing is closer to the preset temperature, and a user can not feel that the temperature of the outlet water is lower.
The method for recycling the cold water at the front section of the water heater provided by the invention has the advantages that the cold water at the front section of the water heater is refluxed to be mixed with the hot water outlet water, the temperature of the mixed water flow obtained by mixing the cold water with the water flow reaching the preset temperature is controlled to be close to the preset temperature, so that the cold water at the front section of the water heater can be recycled as clean water, and the effect of saving water is achieved.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A front-section cold water recycling device of a water heater is characterized by comprising an electric control system, a water storage tank and a valve which is arranged on a hot water outlet pipeline and is close to a water outlet mechanism;
the valve is communicated with the water storage tank through a connecting pipe, the water storage tank is communicated with the valve through a reclaimed water outlet pipeline, and a water pump capable of controlling flow is arranged on the reclaimed water outlet pipeline;
the electric control system comprises a controller and a first temperature sensor, wherein the first temperature sensor is arranged in the valve or is arranged at a position, close to the valve, of the hot water outlet pipeline between the water heater and the valve; the controller is in communication connection with the water pump, the valve and the first temperature sensor, and the electric control system controls the valve to be selectively communicated with the water outlet mechanism, the water storage tank or the recycled water outlet pipeline.
2. The front-section cold water recycling device of the water heater as claimed in claim 1, wherein the electrical control system further comprises a flow regulator, the flow regulator is disposed on the recycled water outlet pipeline, and the flow regulator is in communication connection with the controller.
3. The device for recycling cold water in the front section of a water heater as claimed in claim 1, wherein the ratio of the flow rate of the water in the recycled water outlet pipeline to the flow rate of the water in the hot water outlet pipeline is less than or equal to 1: 10.
4. The device for recycling cold water at the front section of the water heater as claimed in claim 1, wherein the recycled water outlet pipeline comprises a heat exchange thin pipe section, and the heat exchange thin pipe section is arranged in the waste water drainage pipe;
preferably, a second temperature sensor is arranged in the waste water drainage pipe, and the second temperature sensor is in communication connection with the controller;
preferably, the heat exchange thin pipe section is a stainless steel thin pipe.
5. The front-end cold water recycling device of a water heater as claimed in claim 4, wherein the heat exchange thin pipe section is spirally arranged in the waste water drain pipe.
6. The front-section cold water recycling device of the water heater as claimed in claim 1, wherein the electric control system further comprises a water pressure sensor, the water pressure sensor is arranged on the recycled water outlet pipeline and is located between the water storage tank and the water pump; or the water pressure sensor is arranged at the bottom of the water storage tank and is in communication connection with the controller;
or the electric control system further comprises a water level detector, the water level detector is arranged in the water storage tank, and the water level detector is in communication connection with the controller.
7. The device for recycling cold water at the front section of the water heater as claimed in claim 1, wherein the recycled water outlet pipeline comprises a heat exchange thin pipe section, and the heat exchange thin pipe section is arranged on the ground of the shower room.
8. The front-end cold water recycling device of a water heater as claimed in claim 7, wherein the heat exchange thin pipe sections are distributed in a curved shape.
9. A method for recycling cold water at the front section of a water heater is characterized by comprising the following steps:
recovering and storing cold water discharged from the front section of the water heater;
when the water discharged by the water heater reaches the preset temperature, the stored cold water flows back to be mixed with the water flow reaching the preset temperature, and the flow rate of the cold water backflow is smaller than that of the water flow reaching the preset temperature, so that the temperature of the mixed water flow formed by mixing the cold water with the water flow reaching the preset temperature is close to the preset temperature.
10. The method of claim 9, wherein the step of returning the cold water to the pre-set temperature before mixing with the waste hot water further comprises exchanging heat between the cold water and the waste hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911267785.8A CN110887233A (en) | 2019-12-11 | 2019-12-11 | Device and method for recycling cold water at front section of water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911267785.8A CN110887233A (en) | 2019-12-11 | 2019-12-11 | Device and method for recycling cold water at front section of water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110887233A true CN110887233A (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911267785.8A Pending CN110887233A (en) | 2019-12-11 | 2019-12-11 | Device and method for recycling cold water at front section of water heater |
Country Status (1)
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| CN (1) | CN110887233A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242951A (en) * | 2010-05-13 | 2011-11-16 | 浙江师范大学 | Solar water supply system based on backflow water saving technology |
| CN104390339A (en) * | 2014-10-27 | 2015-03-04 | 苏州德鲁森自动化***有限公司 | Instant-heating and water-saving type household water supply system |
| CN104422133A (en) * | 2013-08-19 | 2015-03-18 | 珠海格力电器股份有限公司 | Hot water system and water mixing valve controlling method thereof |
| CN106369807A (en) * | 2016-10-20 | 2017-02-01 | 广东万和新电气股份有限公司 | Zero-cold-water gas water heater and system thereof |
| CN211261301U (en) * | 2019-12-11 | 2020-08-14 | 成都师范学院 | Cold water recycling device at front section of water heater |
-
2019
- 2019-12-11 CN CN201911267785.8A patent/CN110887233A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242951A (en) * | 2010-05-13 | 2011-11-16 | 浙江师范大学 | Solar water supply system based on backflow water saving technology |
| CN104422133A (en) * | 2013-08-19 | 2015-03-18 | 珠海格力电器股份有限公司 | Hot water system and water mixing valve controlling method thereof |
| CN104390339A (en) * | 2014-10-27 | 2015-03-04 | 苏州德鲁森自动化***有限公司 | Instant-heating and water-saving type household water supply system |
| CN106369807A (en) * | 2016-10-20 | 2017-02-01 | 广东万和新电气股份有限公司 | Zero-cold-water gas water heater and system thereof |
| CN211261301U (en) * | 2019-12-11 | 2020-08-14 | 成都师范学院 | Cold water recycling device at front section of water heater |
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