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CN116379500A - Waterway system with circulating hot water and control method thereof - Google Patents

Waterway system with circulating hot water and control method thereof Download PDF

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Publication number
CN116379500A
CN116379500A CN202310229073.7A CN202310229073A CN116379500A CN 116379500 A CN116379500 A CN 116379500A CN 202310229073 A CN202310229073 A CN 202310229073A CN 116379500 A CN116379500 A CN 116379500A
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CN
China
Prior art keywords
water
hot water
temperature
circulating
water inlet
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Pending
Application number
CN202310229073.7A
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Chinese (zh)
Inventor
陈强
杨士亮
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Linhai Weixing New Building Materials Co Ltd
Zhejiang Weixing New Building Materials Co Ltd
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Linhai Weixing New Building Materials Co Ltd
Zhejiang Weixing New Building Materials Co Ltd
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Application filed by Linhai Weixing New Building Materials Co Ltd, Zhejiang Weixing New Building Materials Co Ltd filed Critical Linhai Weixing New Building Materials Co Ltd
Priority to CN202310229073.7A priority Critical patent/CN116379500A/en
Publication of CN116379500A publication Critical patent/CN116379500A/en
Priority to PCT/CN2023/125954 priority patent/WO2024187753A1/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • F24D17/0026Domestic hot-water supply systems with conventional heating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00Domestic hot-water supply systems
    • F24D17/0078Recirculation systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051Arrangement or mounting of control or safety devices for water heating systems for domestic hot water

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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 discloses a waterway system with circulating hot water and a control method thereof, wherein the waterway system comprises a water heater, a water outlet device, a pipeline assembly and a circulating assembly, the water heater comprises a cold water inlet end and a hot water outlet end, the water outlet device is a water outlet faucet, the water outlet faucet comprises a hot water inlet and a cold water inlet, the circulating assembly comprises a booster water pump, a first temperature sensor, a one-way valve, a control panel, a first wireless receiving and transmitting unit and a first water flow sensor, and the water heater, the water outlet device and the circulating assembly are connected through the pipeline assembly. According to the technical scheme, the water faucet can be opened to automatically discharge hot water or in a click mode according to the use habit of a user, so that energy consumption is greatly saved, the user is not required to turn back and forth at the control panel and the water faucet, and the user experience effect is improved.

Description

Waterway system with circulating hot water and control method thereof
Technical Field
The invention belongs to the technical field of building water supply, and particularly relates to a waterway system with circulating hot water and a control method thereof.
Background
At present, a traditional dendritic water supply mode is adopted in the indoor hot water system of a building, wherein a part of families do not have a hot water circulation system, cold water between a water heater and a faucet needs to be discharged when hot water is used each time, energy consumption and water consumption are carried out, and the use experience is poor;
while the other part is divided into two categories from the layout using a hot water circulation system: is provided with a water return pipe and is not provided with the water return pipe. The system provided with the water return pipe is in a full-open temperature control mode, the temperature change of the water return pipe is monitored in 7 x 24h, once the water temperature of the water return pipe is lower than a temperature value set by a user, the water pump is started to heat, the energy consumption is remarkable, and the expenditure is also a large pen; when the water is used immediately after the point demand, the heat circulation is carried out to gradually heat the temperature of the cold water to the set temperature, the waiting time is longer, the operation is not humanized, and the two are not fit for the actual demand of users on the water; the system without the water return pipe is characterized in that the cold water pipe is adopted to replace the water return pipe, the problem of long waiting time exists, water in the cold water pipe is hot water with higher temperature after thermal circulation, a user turns on the cold water switch to flow hot water, the user can be scalded, and the household appliances such as a washing machine, a water purifier and the like can be damaged to a certain extent.
Other hot water circulation devices, such as the "instant heating domestic hot water circulation system" disclosed in chinese patent CN 206875690U, require a user to touch the kitchen or toilet by moving the hot water to a place where the control panel is installed, and then return to the faucet, which is time-consuming and laborious.
Disclosure of Invention
Aiming at the situation of the problems, the invention provides the waterway system with the circulating hot water, which is the waterway system with the zero cold water function, and can be used for opening the faucet to automatically discharge hot water or performing a inching mode according to the use habit of a user by adopting a reservation mode, so that the energy consumption is greatly saved, and the user is not required to turn back and forth at a control panel and the faucet.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a take circulation hot water waterway system, includes water heater, play water installation, pipeline subassembly, circulation subassembly, the water heater is including cold water inlet end and hot water play water end, play water installation is play tap, and play tap includes hot water inlet and cold water inlet, circulation subassembly includes booster pump, first temperature sensor, check valve, control panel, first wireless transceiver unit and first rivers sensor, water heater, play water installation and circulation subassembly pass through the pipeline subassembly and realize connecting.
Further, the pipeline assembly comprises a hot water conveying pipe, a water return pipe, a branch pipe and a cold water inlet pipeline, one end of the hot water conveying pipe is connected with a hot water outlet end of the water heater, and the other end of the hot water conveying pipe is connected with a hot water inlet of the water outlet device; one end of the water return pipe is connected with the cold water inlet end of the water heater, and the other end of the water return pipe is the water inlet end of the water return pipe; one end of the branch pipe is communicated with the hot water conveying pipe, and the other end of the branch pipe is a water outlet end of the branch pipe.
Further, two ends of the branch pipe are respectively communicated with the hot water conveying pipe and the cold water inlet pipe, and a three-way angle valve is arranged at the communicating position.
Further, the control panel comprises a microprocessor and a first wireless receiving and transmitting unit, the booster water pump and the first temperature sensor are electrically connected with the control panel, the booster water pump is used for increasing the water pressure of the hot water pipe to enable water flow to back into the water heater, the water inlet of the booster water pump is connected with the water outlet end of the branch pipe, and the water outlet is connected with the water inlet end of the water return pipe.
Further, the first temperature sensor is arranged in the booster water pump or the branch pipe or the hot water conveying pipe and is used for detecting the water temperature in the hot water circulating pipeline; the check valve is arranged on the branch pipe and used for preventing water flow from flowing reversely.
Further, a touch sensor and a second temperature sensor are arranged on the water outlet tap, the touch sensor is connected with a second wireless receiving and transmitting unit, and the control panel of the circulating assembly is connected through the first wireless receiving and transmitting unit and the second wireless receiving and transmitting unit.
Further, the number of the water outlet taps is multiple, the hot water conveying pipe is communicated with the hot water inlet of each water outlet tap, and the cold water inlet pipeline is communicated with the cold water inlet of each water outlet tap.
The application also provides a control method of the waterway system with the circulating hot water, the waterway system can reserve through the control panel, perform timing circulation, start detection of the booster pump in a reserved time period, and detect the first circulating flow and water flow by the first water flow sensor and the first current water inlet temperature T by the first temperature sensor 1 If the preheating temperature T is set K With the first current water inlet temperature T 1 The difference value is larger than the preset return difference temperature T W Starting the water heater to heat the circulating water until the set temperature is reached; and in the non-reserved time, controlling water by adopting a inching mode.
Further, the control method of the waterway system with circulating hot water specifically comprises the following steps:
step 001, detecting the current time in real time;
step 101, detecting that the current time belongs to a reservation time period set by a user, starting a reservation mode, and entering step 102;
102, detecting the first current circulating water flow of a booster water pump in equipment in real time, and judging whether the flow reaches the minimum starting flow specified by a water heater or not;
step 103: detecting a first current inlet water temperature T in the circulation assembly in real time 1 Judging the preset preheating temperature T K With the first current water inlet temperature T 1 Whether the difference of (2) is greater than a first preset return difference temperature T W The method comprises the steps of carrying out a first treatment on the surface of the If T K –T 1 >T W I.e. when the difference between the preset preheating temperature and the first current water inlet temperature is determined to be greater than the first preset return difference temperature, if so, the method proceeds to step 104, the reservation function is started, and then the method proceeds to step 105; if T K –T 1 <T W At this time, the process returns to step 102, and the heat-retaining state is entered.
Step 105 is executed to determine a warm-up combustion start condition for reaching the cyclic warm-up mode, and control the start of warm-up combustion. After preheating for a certain time, detecting the current time, the second current circulation flow and the second current water inlet temperature, and judging whether a preheating stopping condition is reached;
step 201, detecting that the current time belongs to a non-reserved time period, starting a click mode, and entering step 202;
step 202: the user opens and closes the handle twice in front of the water outlet device within the first 5 seconds or touches the touch sensor 211 on the light intelligent tap to transmit signals to the circulating component;
step 203: after the circulating assembly receives the signal, the water heater and the water pump are started to circulate and heat the water flow of the water return pipe until reaching the preset temperature T K Or stopping after running for a preset time;
step 204, the user can directly use the hot water after opening the handle.
According to the technical scheme, the water faucet can be opened to automatically discharge hot water or in a click mode according to the use habit of a user, so that energy consumption is greatly saved, the user is not required to turn back and forth at the control panel and the water faucet, and the user experience effect is improved. In addition, to avoid the first current inlet water temperature T 1 <Preheating temperature T K The water heater is frequently started to heat circulating water, so that energy consumption is not only consumed, but also high temperature is caused, and a first preset return difference temperature T is added in the judging process of the hot combustion of the invention W The temperature stability can be maintained, energy can be saved, and the frequent starting of the water heater is avoided.
Drawings
FIG. 1 is a schematic diagram of a preheat cycle waterway system of the present invention;
FIG. 2 is a flow chart of two preheating cycle control methods according to the present invention;
FIG. 3 is a schematic diagram of an exemplary sensor of a light intelligent faucet according to the present invention;
in the figure: 1. a water heater; 11. a cold water inlet end; 12. a hot water inlet end; 2. a water outlet device; 21. a water outlet tap; 211. a touch sensor; 22. a hot water inlet; 23. a cold water inlet; 3. a pipeline assembly; 31. a hot water delivery pipe; 32. a water return pipe; 33. a branch pipe; 34. a one-way valve; 35. a cold water inlet pipeline; 4. a circulation assembly; 41. a booster water pump; 42. a control panel; 5. three-way angle valve.
Description of the embodiments
The technical solutions of the present invention will be clearly and completely described by means of examples, and it is obvious that the described examples are only some, but not all, examples of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-3, a waterway system with circulating hot water comprises a water heater 1, a water outlet device 2, a pipeline component 3 and a circulating component 4;
the water heater 1 comprises a cold water inlet end 11 and a hot water outlet end 12, wherein the cold water inlet end 11 is connected with the three-way angle valve 5;
the hot water circulation line 3 is composed of a hot water supply pipe 31, a return pipe 32, and a branch pipe 33, and a cold water intake line 35. Wherein, the branch pipe 33 is provided with a one-way valve 34, and the one-way valve 34 prevents the water flow from flowing back. One end of the hot water conveying pipe 31 is connected with the hot water outlet end 12 of the water heater 1, and the other end is connected with the hot water inlet 22 of the water outlet device 2; one end of the return pipe 32 is connected with the cold water inlet end 11 of the water heater 1, and the other end of the return pipe 32 is the water inlet end of the return pipe; one end of the branch pipe 33 is communicated with the hot water conveying pipe 31, and the other end is a water outlet end of the branch pipe 33; the cold water inlet pipeline 35 is connected with tap water inlet.
The circulation assembly 4 comprises a booster water pump 41, a first temperature sensor, a one-way valve 34, a control panel 42, a first wireless transceiver unit and a first water flow sensor, wherein the control panel 42 comprises a microprocessor and the first wireless transceiver unit, and the microprocessor is used for setting water temperature, comparing with current water temperature numerical data, controlling the water pump and other components; the booster water pump 41 and the first temperature sensor are connected with the control panel 42 in a line way, the booster water pump 41 plays a role in increasing the water pressure of a hot water pipe and enabling water flow to flow back to the water heater 1, a water inlet of the booster water pump 41 is connected with a water outlet end of the branch pipe 33, and a water outlet is connected with a water inlet end of the return pipe 32; the first temperature sensor may be provided in the circulation pump 41, or in the branch pipe 33 or in the hot water pipe 31 to detect the water temperature in the hot water circulation line;
the water outlet device 2 comprises a water outlet tap 21, a hot water inlet 22 and a cold water inlet 23. The cold water inlet 23 is connected to the cold water inlet pipe 35, i.e. the water outlet device 2 can be used for discharging hot water as well as cold water, although in other embodiments the water outlet device 2 can be used for discharging only hot water, only the hot water inlet 22. The water outlet tap 21 comprises a touch sensor 211 and a second temperature sensor, wherein the touch sensor 211 is connected with a second wireless transceiver unit, and the second wireless transceiver unit is connected with a control circuit board of the circulating assembly 4;
in the present embodiment, the reservation may be set through the control panel 42 or performed by the wireless terminal. For example, 7 to 8 o 'clock and 19 to 21 o' clock of Monday to Friday belong to the hot water peak period of demand of the office workers in the morning and evening, and are used for brushing teeth, washing faces, bathing and the like, and the timing cycle is carried out. During this period, the booster pump 41 starts to detect, the water flow sensor detects the first circulating flow rate and the first temperature sensor detects the first current inlet water temperature T 1 If the preheating temperature T is set K With the first current water inlet temperature T 1 The difference value is larger than the preset return difference temperature T W The water heater is started again to heat the circulating water until the set temperature is reached, so that the water heater can be used for sharing warmth without wasting resources;
to avoid as long as the first current inlet water temperature T 1 <Preheating temperature T K The water heater is frequently started to heat circulating water, so that energy consumption is not only realized, but also high temperature is caused, and a first preset return difference temperature T is added in the judgment process of hot combustion of the winding W The temperature stability can be maintained, energy can be saved, and the frequent starting of the water heater is avoided.
The specific implementation is as follows:
step 001, detecting the current time in real time;
step 101, detecting that the current time belongs to a reservation time period set by a user, starting a reservation mode, and entering step 102;
102, detecting the first current circulating water flow of a booster water pump in equipment in real time, and judging whether the flow reaches the minimum starting flow specified by a water heater or not;
step 103: detecting a first current inlet water temperature T in the circulation assembly in real time 1 JudgingBreaking preset preheating temperature T K With the first current water inlet temperature T 1 Whether the difference of (2) is greater than a first preset return difference temperature T W The method comprises the steps of carrying out a first treatment on the surface of the If T K –T 1 >T W I.e. when the difference between the preset preheating temperature and the first current water inlet temperature is determined to be greater than the first preset return difference temperature, if so, the method proceeds to step 104, the reservation function is started, and then the method proceeds to step 105; if T K –T 1 <T W At this time, the process returns to step 102, and the heat-retaining state is entered.
Step 105 is executed to determine a warm-up combustion start condition for reaching the cyclic warm-up mode, and control the start of warm-up combustion. After preheating for a certain time, detecting the current time, the second current circulation flow and the second current water inlet temperature, and judging whether a preheating stopping condition is reached; when the conditions are not met, the preheating stopping condition is entered, and then the preheating is stopped;
step 201, detecting that the current time belongs to a non-reserved time period, starting a click mode, and entering step 202;
step 202: the user opens and closes the handle twice in front of the water outlet device within the first 5 seconds or touches the touch sensor 211 on the light intelligent tap to transmit signals to the circulating component;
step 203: after the circulating assembly receives the signal, the water heater and the water pump are started to circulate and heat the water flow of the water return pipe until reaching the preset temperature T K Or the operation is stopped for 3 minutes (the specific time can be adjusted by the user),
step 204, the user can directly use the hot water after opening the handle.
The water heater 1 of the present invention suggests the use of a gas water heater, not an electric water heater. The reasons are three: firstly, a family generally has 3-4 people, an electric water heater can only supply hot water for 2 continuous people, and the later needs to wait; secondly, the occupied space of the water heater is larger; thirdly, the water outlet temperature is too hot, and the handle is carelessly beaten to the hottest gear at the hot water end, so that the water outlet is extremely easy to scald.
Both of the above solutions do not go to the control panel to press the hot water circulation button and return to the faucet when the user needs hot water.

Claims (9)

1. The utility model provides a take circulation hydrothermal waterway system, its characterized in that, including water heater (1), play water installation (2), pipeline subassembly (3), circulation subassembly (4), water heater (1) are including cold water inlet end (11) and hot water play water end (12), play water installation (2) are play tap (21), play tap (21) include hot water inlet (22) and cold water inlet (23), circulation subassembly (4) are including booster pump (41), first temperature sensor, check valve (34), control panel (42), first wireless transceiver unit and first rivers sensor, water heater (1), play water installation (2) and circulation subassembly (4) are realized connecting through pipeline subassembly (3).
2. The waterway system with circulating hot water according to claim 1, characterized in that the pipeline assembly (3) comprises a hot water delivery pipe (31), a return pipe (32), a branch pipe (33) and a cold water inlet pipeline (35), one end of the hot water delivery pipe (31) is connected with a hot water outlet end (12) of the water heater (1), and the other end is connected with a hot water inlet (22) of the water outlet device (2); one end of the water return pipe (32) is connected with the cold water inlet end (11) of the water heater (1), and the other end is the water inlet end of the water return pipe (32); one end of the branch pipe (33) is communicated with the hot water conveying pipe (31), and the other end of the branch pipe is a water outlet end of the branch pipe (33).
3. Waterway system with circulating hot water according to claim 2, characterized in that the two ends of the branch pipe (33) are respectively communicated with a hot water delivery pipe and a cold water inlet pipe, and a three-way angle valve (5) is arranged at the communication position.
4. The waterway system with circulating hot water according to claim 2, wherein the control panel (42) includes a microprocessor and a first wireless transceiver unit, the booster pump (41) and the first temperature sensor are electrically connected with the control panel (42), the booster pump (41) is used for increasing the water pressure of the hot water pipe to enable the water to flow back into the water heater (1), the water inlet of the booster pump (41) is connected with the water outlet end of the branch pipe (33), and the water outlet is connected with the water inlet end of the water return pipe (32).
5. The waterway system with circulating hot water according to claim 4, characterized in that the first temperature sensor is provided in a booster pump (41) or in a branch pipe (32) or in a hot water delivery pipe (31) for detecting the temperature of water in a hot water circulation line; a check valve (34) is provided on the branch pipe (33) for preventing the water flow from flowing in the reverse direction.
6. The waterway system with circulating hot water according to claim 4, characterized in that the tap (21) is provided with a touch sensor (211) and a second temperature sensor, the touch sensor (211) is connected with a second wireless transceiver unit, and the control panel (42) of the circulating assembly (4) is connected through the first wireless transceiver unit and the second wireless transceiver unit.
7. Waterway system with circulating hot water according to claim 6, characterized in that the number of said outlet taps (21) is plural, a hot water delivery pipe (31) is in communication with the hot water inlet (22) of each outlet tap (21), and a cold water inlet pipe (35) is in communication with the cold water inlet (23) of each outlet tap (21).
8. A control method of a waterway system with circulating hot water according to any one of claims 1-7, wherein the waterway system is reserved by a control panel, and a timing cycle is performed, and a booster pump (41) is started to detect during a reserved period, a first water flow sensor detects a first circulating flow and a first temperature sensor detects a first current inlet water temperature T 1 If the preheating temperature T is set K With the first current water inlet temperature T 1 The difference value is larger than the preset return difference temperature T W Starting the water heater to heat the circulating water until the set temperature is reached; at the time of non-reservationIn the room, the water consumption is controlled by adopting a inching mode.
9. The control method of a waterway system with circulating hot water according to claim 8, comprising the steps of:
step 001, detecting the current time in real time;
step 101, detecting that the current time belongs to a reservation time period set by a user, starting a reservation mode, and entering step 102;
102, detecting the first current circulating water flow of a booster water pump in equipment in real time, and judging whether the flow reaches the minimum starting flow specified by a water heater or not;
step 103: detecting in real time a first current inlet water temperature T in the circulation assembly (4) 1 Judging the preset preheating temperature T K With the first current water inlet temperature T 1 Whether the difference of (2) is greater than a first preset return difference temperature T W The method comprises the steps of carrying out a first treatment on the surface of the If T K –T 1 >T W I.e. when the difference between the preset preheating temperature and the first current water inlet temperature is determined to be greater than the first preset return difference temperature, if so, the method proceeds to step 104, the reservation function is started, and then the method proceeds to step 105; if T K –T 1 <T W At this time, the process returns to the step 102 and enters a heat-preserving state;
executing step 105, determining a preheating combustion starting condition reaching a cyclic preheating mode, and controlling to start preheating combustion; after preheating for a certain time, detecting the current time, the second current circulation flow and the second current water inlet temperature, and judging whether a preheating stopping condition is reached;
step 201, detecting that the current time belongs to a non-reserved time period, starting a click mode, and entering step 202;
step 202: the user opens and closes the handle twice in front of the water outlet device (2) within the first 5s or touches the touch sensor 211 on the light intelligent tap to send a signal to the circulating component (4);
step 203: after the circulating assembly (4) receives the signal, the water heater and the water pump are started to circulate and heat the water flow of the water return pipe until the preset temperature T is reached K Or transportStopping after a preset time is reached;
step 204, the user can directly use the hot water after opening the handle.
CN202310229073.7A 2023-03-10 2023-03-10 Waterway system with circulating hot water and control method thereof Pending CN116379500A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202310229073.7A CN116379500A (en) 2023-03-10 2023-03-10 Waterway system with circulating hot water and control method thereof
PCT/CN2023/125954 WO2024187753A1 (en) 2023-03-10 2023-10-23 Water circuit system with circulating hot water and control method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310229073.7A CN116379500A (en) 2023-03-10 2023-03-10 Waterway system with circulating hot water and control method thereof

Publications (1)

Publication Number Publication Date
CN116379500A true CN116379500A (en) 2023-07-04

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CN202310229073.7A Pending CN116379500A (en) 2023-03-10 2023-03-10 Waterway system with circulating hot water and control method thereof

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WO (1) WO2024187753A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024187753A1 (en) * 2023-03-10 2024-09-19 临海伟星新型建材有限公司 Water circuit system with circulating hot water and control method therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202109657U (en) * 2011-01-25 2012-01-11 广东万家乐燃气具有限公司 Universal hot water circulating device for water heater
CN105823223B (en) * 2016-04-06 2018-08-14 成都金鼎恒信科技有限公司 A kind of intelligent circulation pump, the intelligent hot water circulatory system
KR102062836B1 (en) * 2018-01-30 2020-01-06 이원범 Method for controlling the temperature of boiler circulating water and the boiler thereof
CN116379500A (en) * 2023-03-10 2023-07-04 临海伟星新型建材有限公司 Waterway system with circulating hot water and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024187753A1 (en) * 2023-03-10 2024-09-19 临海伟星新型建材有限公司 Water circuit system with circulating hot water and control method therefor

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