CN113203199A - Intelligent cold water backflow temperature-regulating and flow-controlling device - Google Patents
Intelligent cold water backflow temperature-regulating and flow-controlling device Download PDFInfo
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- CN113203199A CN113203199A CN202110457083.7A CN202110457083A CN113203199A CN 113203199 A CN113203199 A CN 113203199A CN 202110457083 A CN202110457083 A CN 202110457083A CN 113203199 A CN113203199 A CN 113203199A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 280
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000003303 reheating Methods 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000003287 bathing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/133—Storage 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- 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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage 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)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The invention relates to an intelligent cold water backflow temperature-adjusting and flow-controlling device, which comprises a water heater 60 ℃ temperature area, a water heater 30 ℃ temperature area, a water inlet pipe, a water tap control board, a 60 ℃ flow control valve, a 30 ℃ flow control valve, a water pump, a backflow pipe, a hot water pipe, an infrared temperature-sensing device, a control device and a cold water pipe, wherein the water heater is provided with a water inlet pipe and a water outlet pipe; the hot water pipe and the return pipe are communicated to form a loop, the hot water pipe is respectively connected with a 60 ℃ temperature area and a 30 ℃ temperature area of the water heater through a 60 ℃ flow control valve and a 30 ℃ flow control valve, the return pipe is connected with the 30 ℃ temperature area of the water heater, the infrared temperature sensing device is arranged on the hot water pipe and is connected with the control device, the control device is connected with the water pump, and the cold water pipe and the water inlet pipe are connected to form the loop. Compared with the prior art, the invention has the advantages that the whole cold water backflow process is simple, intelligent and accurate in temperature setting, and cold water which does not reach the target temperature can be timely recovered; but also improves the working efficiency and the like.
Description
Technical Field
The invention relates to a water heater, in particular to an intelligent cold water backflow temperature-regulating and flow-controlling device.
Background
In life, when a user uses a water heater to discharge hot water for bathing, a section of cold water is always discharged before the hot water is discharged. The water heater is characterized in that a section of water pipe is arranged between a water outlet of the water heater and the shower head, after one bath, water remained in the water pipe is naturally cooled and flows out in advance when the water heater is used next time, and a section of cold water before hot water is generated. The cold water is not only uncomfortable (especially in winter), but also causes serious waste of water resources. Meanwhile, how to solve the 'section of cold water' elegantly is very necessary for solving the current problem of water resource waste which is becoming serious. Meanwhile, the problem that the temperature and the flow of the outlet water cannot be accurately controlled exists in life, and if the water temperature is too high or too low and the flow is too large or too small, the bathing experience of people can be influenced. Therefore, it is necessary to realize the return of cold water and simultaneously control the temperature and regulate the flow.
There are currently some devices that can solve the above "cold water" problem. However, some solutions install a heat conducting device at the connection between the water heater and the water pipe, so that the water in the water heater exchanges heat with the cooled water in the hot water pipe; this approach is inefficient and there is heat exchange with the air, making it difficult for the temperature of the residual water in the water pipe to meet practical requirements. In other schemes, a water pump, a water tank and a valve are additionally arranged between the most remote cold and hot water pipes, and cooled water is pumped into the water tank until the water conveyed in the pipes reaches the expected temperature; however, this method has a problem of occupying too much space. Some devices have been proposed to control the speed and flow rate of the water, but some solutions have been designed to heat the water to a given temperature and control the flow rate, which not only requires too much performance of the water heater, but also consumes too much energy.
Chinese patent publication No. CN207716667U is searched to disclose a bathroom hot water outlet temperature control device, the prior patent only realizes that the controller controls the electromagnetic water mixing valve to automatically mix hot water and cold water according to the fed back room temperature, the temperature of hot water in the hot water pipe and the temperature of cold water in the cold water pipe, so that the temperature of the hot water flowing out of the water outlet pipe is suitable for human body showering, and simultaneously, the Chinese patent publication No. CN107062626A discloses an intelligent control system of a water storage type water heater and a control method thereof, in particular to a control method of the intelligent control system, which discloses that when the temperature of the hot water in a water storage barrel is reduced to a certain temperature value, the control unit closes the water inlet valve and opens the electromagnetic emptying valve to ensure that the hot water in the water storage barrel keeps the temperature, and automatically adjust the size of the flow regulating valve according to the functional relation according to the hot water temperature signal and the flow signals of the water outlet valve and the flow regulating valve, therefore, the two prior patents do not solve two technical problems of cold water backflow and temperature and flow control at the same time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an intelligent cold water backflow temperature-regulating and flow-controlling device.
The purpose of the invention can be realized by the following technical scheme:
according to one aspect of the invention, an intelligent cold water backflow temperature-regulating and flow-controlling device is provided, and comprises a water heater 60 ℃ temperature area, a water heater 30 ℃ temperature area, a water inlet pipe, a water tap control board, a 60 ℃ flow control valve, a 30 ℃ flow control valve, a water pump, a backflow pipe, a hot water pipe, an infrared temperature sensing device, a control device and a cold water pipe;
the hot water pipe is communicated with the return pipe to form a loop, the hot water pipe is respectively connected with a 60 ℃ temperature area and a 30 ℃ temperature area of the water heater through a 60 ℃ flow control valve and a 30 ℃ flow control valve, the return pipe is connected with the 30 ℃ temperature area of the water heater, the infrared temperature sensing device is arranged on the hot water pipe and is connected with the control device, the control device is connected with the water pump, and the cold water pipe is connected with the water inlet pipe to form the loop;
the infrared temperature sensing device measures the temperature of water in the hot water pipe, when the water temperature does not meet the requirement, the infrared temperature sensing device transmits a signal to the control device, and the control device controls the water pump to pump back cold water which does not meet the requirement; when the water temperature reaches a set threshold value, the control device controls the water pump to stop working and outputs hot water.
As a preferred technical scheme, the control device comprises an arduino main board and a relay which are connected with each other, the arduino main board is connected with the infrared temperature sensing device, and the relay is connected with the water pump;
the temperature of hot water to be controlled is measured through the infrared temperature sensing device, when the temperature reaches a specified temperature, the arduino mainboard outputs low level, the relay is disconnected, and the water pump stops working to output the hot water; when the temperature does not reach the specified temperature, the arduino mainboard sends out a high level, the high level is caught by the relay, the relay is closed, and the water pump pumps cold water back to the water heater for reheating in the 30 ℃ temperature area.
As a preferable technical scheme, the tail end of the water outlet of the hot water pipe is connected with the return pipe through a one-way valve.
Preferably, the check valve is an H-type check valve.
As the preferred technical scheme, the device also comprises a double-chamber storage box directly fixed between the hot water pipe and the return pipe, and the double-chamber storage box comprises a left chamber for placing the water pump and a right chamber for placing the infrared temperature sensing device and the control device.
Preferably, the left chamber and the right chamber are independent of each other, and only one diameter hole is arranged for the power line of the water supply pump to pass through.
Preferably, the diameter of the diameter hole is 1 cm.
As the preferred technical scheme, an opening is formed in the right side wall of the right chamber and used for placing the infrared temperature sensing device.
As a preferred technical scheme, the diameter of the open pore is 1.2 cm.
As a preferred technical scheme, the device divides the water heater into a temperature zone of 30 ℃ and a temperature zone of 60 ℃, and the returned cold water only needs to be heated to 30 ℃; meanwhile, the water is respectively discharged from the 30 ℃ temperature zone and the 60 ℃ temperature zone for mixed use, and the opening degrees of the two flow control valves are respectively controlled, so that the flow and the temperature of the discharged water are controlled.
Compared with the prior art, the invention has the following advantages:
A. the device adopts the infrared temperature sensing device to transmit a temperature signal to control the relay, thereby further controlling the water pump, not only ensuring the whole cold water backflow process to be simple and intelligent, accurately setting the temperature, and ensuring that the cold water which does not reach the target temperature is timely recovered; but also improves the working efficiency and reduces the waiting time.
B. The device does not adopt a method of additionally arranging a water pumping device, a water tank and a valve between the most remote cold and hot water pipes, but directly arranges an H-shaped check valve and a water pump at the water outlet of the cold water pipe and the hot water pipe, thereby reducing the occupied area, improving the practicability and improving the recovery rate of cold water.
C. This device adopts two rooms receiver, and the water pump is placed to the left side room, and automatically controlled relevant subassembly is placed to the right side room. The left chamber and the right chamber are mutually independent and are only provided with a hole with the diameter of 1cm for a power line of a water supply pump to pass through; therefore, the safety of the electric control link is ensured, and the integrity and the portability of the device are improved.
D. This device is through with moisture warm area to calculate in advance, mix according to required ration and obtain the hot water of target flow and temperature, more intelligent, the accuracy is good simultaneously, shortens greatly and waits for the required time of water, compares the mode according to required temperature real-time heating and detection temperature simultaneously, and this kind of mode is more succinct, also more energy-conserving.
E. The device combines a cold water backflow technology and an intelligent temperature and flow control technology, improves the utilization rate of water resources, and can also improve the bathing experience of people.
Drawings
FIG. 1 is a schematic structural view of the present invention;
wherein 1 is a water heater 60 ℃ temperature zone, 2 is a water heater 30 ℃ temperature zone, 3 is a water inlet pipe, 4 is a water tap control board, 5 is a 60 ℃ flow control valve, 6 is a 30 ℃ flow control valve, 7 is a water pump, 8 is a return pipe, 9 is a hot water pipe, 10 is an infrared temperature sensing device, 11 is a control device, 12 is a one-way valve, and 13 is a cold water pipe.
Detailed Description
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, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The invention is improved in two aspects, on one hand, the temperature is measured by the infrared temperature sensing device, a signal is automatically sent to the arduino, the state of the relay is controlled by the arduino, the relay controls the starting and closing of the water pump, cold water is pumped back to the return pipe from the hot water pipe through the one-way valve, and the purpose of recycling water resources is achieved. On the other hand, the water heater is divided into a 30-degree temperature area and a 60-degree temperature area, after the specified temperature and flow are input, the temperature and the flow are quantitatively regulated by regulating the flow control valves on the two water outlet pipes, real-time measurement and feedback are not needed, and the efficiency and the stability are improved.
As shown in fig. 1, an intelligent cold water backflow temperature-regulating and flow-controlling device comprises a water heater 60 ℃ temperature zone 1, a water heater 30 ℃ temperature zone 2, a water inlet pipe 3, a water tap control board 4, a 60 ℃ flow control valve 5, a 30 ℃ flow control valve 6, a water pump 7, a backflow pipe 8, a hot water pipe 9, an infrared temperature-sensing device 10, a control device 11 and a cold water pipe 13; the hot water pipe 9 and the return pipe 8 are communicated to form a loop, the hot water pipe 9 is respectively connected with a 60 ℃ temperature zone 1 of the water heater and a 30 ℃ temperature zone 2 of the water heater through a 60 ℃ flow control valve 5 and a 30 ℃ flow control valve 6, the return pipe 8 is connected with the 30 ℃ temperature zone 2 of the water heater, the infrared temperature sensing device 10 is installed on the hot water pipe 9 and is connected with a control device 11, the control device 11 is connected with a water pump 7, and the cold water pipe 13 is connected with the water inlet pipe 3 to form a loop;
the infrared temperature sensing device 10 measures the temperature of water in the hot water pipe 9, when the water temperature does not meet the requirement, the infrared temperature sensing device 10 transmits a signal to the control device 11, and the control device 11 controls the water pump 7 to pump back cold water which does not meet the requirement; when the water temperature reaches a set threshold value, the control device 11 controls the water pump 7 to stop working and outputs hot water.
The control device 11 comprises an arduino mainboard and a relay which are connected with each other, the arduino mainboard is connected with the infrared temperature sensing device 10, and the relay is connected with the water pump 7; the temperature of hot water to be controlled is measured through the infrared temperature sensing device 10, when the temperature reaches a specified temperature, the arduino mainboard outputs low level, the relay is disconnected, and the water pump 7 stops working to output the hot water; when the temperature does not reach the specified temperature, the arduino mainboard sends out a high level, the high level is caught by the relay, the relay is closed, and the water pump 7 pumps the cold water back to the 30 ℃ temperature area of the water heater for reheating.
The tail end of the water outlet of the hot water pipe 9 is connected with the return pipe 8 through a one-way valve 12. The check valve 12 is an H-shaped check valve; the cold water remained in the pipeline is recycled to the maximum extent, and meanwhile, the cold water is skillfully connected, so that the occupied space is reduced, and the installation and application in the family are facilitated.
In order to ensure the safety of the electric control plate and improve the integrity and the portability of the device, the device also comprises a double-chamber storage box which is directly fixed between the hot water pipe 9 and the return pipe 8, and the double-chamber storage box comprises a left chamber for placing the water pump 7 and a right chamber for placing the infrared temperature sensing device 10 and the control device 11.
The left chamber and the right chamber are mutually independent and are only provided with a diameter hole for a water supply pump power line to pass through. The diameter of the diameter hole is 1 cm. The right side wall of the right chamber is provided with an opening for placing the infrared temperature sensing device 10. The diameter of the open pore is 1.2 cm.
The device divides the water heater into a temperature zone of 30 ℃ and a temperature zone of 60 ℃, and the returned cold water only needs to be heated to 30 ℃; meanwhile, the water is respectively discharged from the 30 ℃ temperature zone and the 60 ℃ temperature zone for mixed use, and the opening degrees of the two flow control valves are respectively controlled, so that the flow and the temperature of the discharged water are controlled. Thereby improving the utilization rate of cold water and improving the bathing experience of people.
On one hand, the intelligent cold water backflow temperature control and flow regulation device utilizes the infrared temperature sensing technology to measure the required temperature and then transmits a signal to the relay so as to control the water pump to work, improve the working efficiency and realize intelligent control. On the other hand, through the use of the one-way valve, the one-way direction of water flow is ensured, the water flows from the hot water pipe to the return pipe, the running accuracy is improved, meanwhile, the occupied space for installing the device is reduced due to the application of the H-shaped structure, and the device can be installed and used in families. The water heater is divided into two temperature regions of 30 ℃ and 60 ℃, the returned cold water enters the temperature region of 30 ℃ and is reheated to 30 ℃, the temperature and the flow rate are input through the faucet control interface, and the flow control valve arranged on the water outlet pipe of the temperature region of 30 ℃ and the flow control valve arranged on the hot water pipe are controlled, so that the temperature and the flow rate of the outlet water are controlled.
Detailed description of the invention
A. The invention mainly comprises a mechanical plate and an electric control plate, and mainly constructs four functions, including intelligent detection and control, cold water backflow, cold water heating, and outlet water temperature and flow control.
B. The electric control plate is composed of a power supply, an Arduino mainboard, an infrared temperature measuring sensor, a 24V relay, a bread board, a resistor and a plurality of wires, the mechanical plate comprises fittings including a water pipe, a temperature-division water heater, a water tap, a water pump and a flow control valve, the inner diameter of the pipe/interface is 15mm, and all pipelines are standard 4-branch pipes.
C. When cold water is in the hot water pipe, the single chip microcomputer sends out a high level through the infrared temperature sensor, the high level is captured by the relay, the relay is closed, and the water pump works to pump the cold water back to the 30-degree temperature area of the water heater for reheating. When the temperature in the hot water pipe exceeds a set threshold (30 ℃), the singlechip outputs low level, the relay is disconnected, and the water pump stops working to output hot water.
D. For the security of guaranteeing automatically controlled plate, improve wholeness, the portability of device simultaneously, designed two rooms device receiver, this two rooms receiver divide into about two rooms, and the water pump is placed to the left room, and automatically controlled relevant subassembly is placed to the right room. The left chamber and the right chamber are mutually independent and are only provided with a hole with the diameter of 1cm for a power line of a water supply pump to pass through; and a 1.2cm opening is formed in the right side wall of the right chamber and used for placing an infrared temperature measurement sensor. This receiver direct fixation optimizes the device in the middle of back flow and the hot-water line effectively, has improved its security and portability.
E. On the level of controlling the water outlet flow and the temperature, the mixing temperature is (temperature 1 mass 1+ temperature 2 mass 2)/(mass 1+ mass 2) according to a formula, the inner diameters of all water pipes are the same, the water quantity is only related to the opening degree of the flow control valve, the flow of three degrees is set according to the mixing temperature, and the total temperature is 7 between 30 ℃ and 60 ℃, the combination is totally 21 conditions, a user only needs to input the temperature and the flow at a faucet control board, the control board finishes the output of the required water temperature and the required flow by controlling the two flow control valves, and the specific control mode is shown in table 1.
TABLE 1
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An intelligent cold water backflow temperature-regulating and flow-controlling device is characterized by comprising a water heater 60 ℃ temperature area (1), a water heater 30 ℃ temperature area (2), a water inlet pipe (3), a water tap control board (4), a 60 ℃ flow control valve (5), a 30 ℃ flow control valve (6), a water pump (7), a backflow pipe (8), a hot water pipe (9), an infrared temperature sensing device (10), a control device (11) and a cold water pipe (13);
the hot water pipe (9) and the return pipe (8) are communicated to form a loop, the hot water pipe (9) is respectively connected with a 60 ℃ temperature area (1) of the water heater and a 30 ℃ temperature area (2) of the water heater through a 60 ℃ flow control valve (5) and a 30 ℃ flow control valve (6), the return pipe (8) is connected with the 30 ℃ temperature area (2) of the water heater, the infrared temperature sensing device (10) is installed on the hot water pipe (9) and connected with the control device (11), the control device (11) is connected with the water pump (7), and the cold water pipe (13) and the water inlet pipe (3) are connected to form the loop;
the infrared temperature sensing device (10) measures the temperature of water in the hot water pipe (9), when the water temperature does not meet the requirement, the infrared temperature sensing device (10) transmits a signal to the control device (11), and the control device (11) controls the water pump (7) to pump back cold water which does not meet the requirement; when the water temperature reaches a set threshold value, the control device (11) controls the water pump (7) to stop working and outputs hot water.
2. An intelligent cold water return temperature-regulating flow-controlling device according to claim 1, wherein said control device (11) comprises an arduino main board and a relay connected with each other, said arduino main board is connected with an infrared temperature-sensing device (10), said relay is connected with a water pump (7);
the temperature of hot water to be controlled is measured through the infrared temperature sensing device (10), when the temperature reaches a specified temperature, the arduino mainboard outputs low level, the relay is disconnected, and the water pump (7) stops working to output the hot water; when the temperature does not reach the specified temperature, the arduino mainboard sends out a high level, the high level is captured by the relay, the relay is closed, and the water pump (7) pumps cold water back to the water heater for reheating in the 30 ℃ temperature zone.
3. An intelligent cold water backflow temperature regulating and flow controlling device according to claim 1, wherein the tail end of the water outlet of the hot water pipe (9) is connected with the backflow pipe (8) through a one-way valve (12).
4. An intelligent cold water backflow temperature and flow regulating device according to claim 3, wherein the check valve (12) is an H-shaped check valve.
5. An intelligent cold water return temperature and flow regulating device according to claim 1, characterized in that said device further comprises a double-chamber storage box directly fixed between the hot water pipe (9) and the return pipe (8), said double-chamber storage box comprises a left chamber for placing the water pump (7) and a right chamber for placing the infrared temperature sensing device (10) and the control device (11).
6. An intelligent cold water backflow temperature and flow regulating device according to claim 5, wherein the left chamber and the right chamber are independent of each other, and only one diameter hole is provided for a water pump power line to pass through.
7. An intelligent cold water backflow temperature and flow regulating device according to claim 6, wherein the diameter of the diameter hole is 1 cm.
8. An intelligent cold water return temperature-regulating flow-controlling device according to claim 5, characterized in that the right side wall of the right chamber is provided with an opening for placing the infrared temperature-sensing device (10).
9. An intelligent cold water reflux temperature and flow control device according to claim 8, wherein the diameter of the opening is 1.2 cm.
10. The intelligent cold water backflow temperature-regulating and flow-controlling device according to claim 1, wherein the device divides a water heater into a 30 ℃ temperature zone and a 60 ℃ temperature zone, and the backflow cold water is only required to be heated to 30 ℃; meanwhile, the water is respectively discharged from the 30 ℃ temperature zone and the 60 ℃ temperature zone for mixed use, and the opening degrees of the two flow control valves are respectively controlled, so that the flow and the temperature of the discharged water are controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110457083.7A CN113203199A (en) | 2021-04-27 | 2021-04-27 | Intelligent cold water backflow temperature-regulating and flow-controlling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110457083.7A CN113203199A (en) | 2021-04-27 | 2021-04-27 | Intelligent cold water backflow temperature-regulating and flow-controlling device |
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| CN113203199A true CN113203199A (en) | 2021-08-03 |
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| CN202110457083.7A Pending CN113203199A (en) | 2021-04-27 | 2021-04-27 | Intelligent cold water backflow temperature-regulating and flow-controlling device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085478A (en) * | 2007-09-28 | 2009-04-23 | Hitachi Housetec Co Ltd | Hot water storage type water heater |
| US20090266426A1 (en) * | 2008-04-29 | 2009-10-29 | Lee Yu-Tuan | Hot water system |
| CN102401471A (en) * | 2011-12-02 | 2012-04-04 | 苏州科博思流体科技有限公司 | Backflow type water-saving device |
| CN206787051U (en) * | 2017-05-03 | 2017-12-22 | 辽宁三利节能科技有限公司 | A kind of dual temperature area water heater |
-
2021
- 2021-04-27 CN CN202110457083.7A patent/CN113203199A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085478A (en) * | 2007-09-28 | 2009-04-23 | Hitachi Housetec Co Ltd | Hot water storage type water heater |
| US20090266426A1 (en) * | 2008-04-29 | 2009-10-29 | Lee Yu-Tuan | Hot water system |
| CN102401471A (en) * | 2011-12-02 | 2012-04-04 | 苏州科博思流体科技有限公司 | Backflow type water-saving device |
| CN206787051U (en) * | 2017-05-03 | 2017-12-22 | 辽宁三利节能科技有限公司 | A kind of dual temperature area water heater |
Non-Patent Citations (1)
| Title |
|---|
| 赵健: "《实用声光及无线电遥控电路》", 31 January 2005, 中国电力出版社 * |
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Application publication date: 20210803 |