CN112856808B - Water temperature control method of energy-saving constant-temperature water purifying device - Google Patents
Water temperature control method of energy-saving constant-temperature water purifying device Download PDFInfo
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- CN112856808B CN112856808B CN202110021685.8A CN202110021685A CN112856808B CN 112856808 B CN112856808 B CN 112856808B CN 202110021685 A CN202110021685 A CN 202110021685A CN 112856808 B CN112856808 B CN 112856808B
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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
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
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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
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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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
- F24H9/14—Arrangements for connecting different sections, e.g. in water 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
- F24H9/20—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
Abstract
The utility model provides an energy-conserving constant temperature purifier, its characterized in that includes hot jar, first heat exchanger, second heat exchanger, water purification module, controller and corresponding solenoid valve and pipeline, and hot jar is equipped with level sensor, first temperature sensor and electrothermal tube, and this hot jar goes out a branch road of water end and is connected with the hot-water line, and another branch road of this hot jar play water end is connected with warm water pipe, is equipped with first solenoid valve on the aforesaid hot-water line, is equipped with second solenoid valve and second temperature sensor on the aforesaid warm water pipe. The invention also discloses a water temperature control method. Through multistage heat transfer, energy-conserving again can the constant temperature go out water promptly, can obtain the multiple temperature including cool boiled water to can improve winter water yield, can also prevent frostbite.
Description
Technical Field
The invention relates to a water drinking device, in particular to a water purifying and drinking device capable of providing different water temperatures according to requirements.
Background
At present, commercial water purification systems on the market basically adopt a hot tank for heating, the system can not discharge water at constant temperature, the water yield of purified water is very low due to low temperature of raw water in winter, and the water temperature entering the hot tank is low due to low temperature in winter, so that the electric energy required to be consumed is high, and the system is not energy-saving. The system has no heat exchange part, can not exchange heat for boiled hot water, can not obtain cool boiled water, and needs to blend cold water and boiled water by oneself when drinking warm water. And the water purifier can not prevent frostbite after the temperature in winter is reduced, and the machine is easy to freeze.
Refer to the Chinese invention patent application publication No. 201010593644.8, a water purifier (application publication No. CN102079599A), which discloses that a water inlet pipe is connected with a water storage tank, the water storage tank is connected with a filter, the filter is divided into three outlets, a first outlet is connected with a refrigerator, the refrigerator is connected with an ice water pipe; the second outlet is connected with a heater, and the heater is connected with a heat exchange mechanism; the third outlet is connected with a heat exchange mechanism, the heat exchange mechanism is divided into two paths of outlets, one path of outlet is connected with a warm water tank, the warm water tank is connected with a warm water pipe, the other path of outlet is connected with a preheating water tank, the preheating water tank is connected with a quick heating pipe, and the quick heating pipe is connected with a boiling water pipe. This application heat transfer mechanism, refrigerator etc. set up comparatively loaded down with trivial details, and simultaneously, the temperature control is more limited again, remains further to be improved.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide an energy-saving constant temperature water purification device capable of obtaining various water temperatures including cool boiled water in view of the above technical status.
A second technical problem to be solved by the present invention is to provide a control method capable of obtaining a plurality of water temperatures including cool boiled water in view of the above technical situation.
The technical scheme adopted by the invention for solving the first technical problem is as follows: an energy-saving constant-temperature water purifying device is characterized by comprising
The hot pot is provided with a water level sensor, a first temperature sensor and an electric heating tube, one branch of the water outlet end of the hot pot is connected with a hot water pipe, the other branch of the water outlet end of the hot pot is connected with a warm water pipe, the hot water pipe is provided with a first electromagnetic valve, and the warm water pipe is provided with a second electromagnetic valve and a second temperature sensor;
the first heat exchanger is arranged on the warm water pipe and is provided with a second cold end input port and a second hot end output port communicated with the second cold end input port;
the second heat exchanger is arranged on the warm water pipe and is positioned between the first heat exchanger and the hot tank, and the first heat exchanger is provided with a first cold end input port and a second hot end output port communicated with the first cold end input port;
the water inlet pipe is connected to the water inlet end of the hot tank, a first flow regulating valve, a third electromagnetic valve, a fourth electromagnetic valve and a second flow regulating valve are sequentially arranged on the water inlet pipe from the water inlet to the water outlet, a third temperature sensor is arranged at the front end of the first flow regulating valve of the water inlet pipe, and a third temperature sensor is arranged at the front end of the second flow regulating valve of the water inlet pipe;
the first branch pipe is connected between the second cold end input port and the first flow regulating valve, and a fifth electromagnetic valve is arranged on the first branch pipe;
the second branch pipe is connected between the second hot end output port and the water inlet pipe, and the water outlet end of the second branch pipe is positioned between the third electromagnetic valve and the fourth electromagnetic valve;
the third branch pipe is connected between the first cold end output port and the second flow regulating valve;
the fourth branch pipe is connected between the first hot end output port and the water inlet pipe, and the water outlet end of the fourth branch pipe is positioned between the second flow regulating valve and the water inlet port of the hot tank; and
the water purification module is arranged on the water inlet pipe and is used for carrying out water purification and filtration treatment on water entering the hot tank; and
and the control input end of the controller is connected with the water level sensor, the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor, and the control output end of the controller is connected with the electric heating pipe, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve, the first flow regulating valve and the second flow regulating valve.
Furthermore, a first drainage pipe is led out from the water outlet end of the warm water pipe, a sixth electromagnetic valve is arranged on the first drainage pipe, and the sixth electromagnetic valve is controlled by the controller.
Further, the bottom of the hot tank is connected with a second drain pipe, a seventh electromagnetic valve is arranged on the second drain pipe, and the seventh electromagnetic valve is controlled by the controller.
Furthermore, the water inlet pipe is provided with a first one-way valve at the rear end of the third electromagnetic valve.
Furthermore, a second one-way valve is arranged on the second branch pipe.
Further, an exhaust valve is arranged at the top of the hot tank.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a water temperature control method is characterized by comprising the following steps:
when water is supplied for the first time, the fifth electromagnetic valve is closed, the third electromagnetic valve and the fourth electromagnetic valve are opened, tap water passes through the third temperature sensor, the first flow regulating valve is opened to the maximum at the moment, then the tap water passes through the third electromagnetic valve and the fourth electromagnetic valve, enters the water purification module, and then passes through the water purification module to obtain purified water; at the moment, the direction of the second flow regulating valve entering the hot tank is automatically regulated to the maximum, purified water enters the hot tank through the second flow regulating valve of the water storage tank, when the water level sensor in the hot tank detects that the water is full, the third electromagnetic valve and the fourth electromagnetic valve are closed at the moment, the electric heating pipe starts to heat, when the first temperature sensor detects that the temperature of the water in the hot tank is larger than or equal to T1, the electric heating pipe stops working, and the T1 is 90-95 ℃;
when hot water is needed, the first electromagnetic valve is opened at the moment, water in the hot tank is supplied to a user through the first electromagnetic valve, meanwhile, the third temperature sensor at the water inlet end judges the water inlet temperature, the winter is judged when the water inlet temperature is less than or equal to T2, the fifth electromagnetic valve is opened at the moment, the third electromagnetic valve is closed, the fourth electromagnetic valve is opened, the direction of the first flow regulating valve entering the first heat exchanger is opened to the maximum, tap water enters the first heat exchanger through the first flow regulating valve to heat the tap water to T3, then the tap water enters the water purification module through the fourth electromagnetic valve, the direction of the second flow regulating valve entering the hot tank is automatically regulated to a certain proportion at the moment, one part enters the second heat exchanger to exchange heat and then enters the hot tank, then the electric heating pipe in the hot tank is started to heat, and when the water level sensor detects that the water level is full, the water purification module stops working, when the first temperature sensor detects that the temperature of water in the heat tank is larger than or equal to T1, the electric heating tube stops working, the T2 is 5-15 ℃, and the T3 is 20-25 ℃;
if the inlet water temperature is higher than T2, summer is judged, the fifth electromagnetic valve is opened, the third electromagnetic valve is opened, the fourth electromagnetic valve is opened, the tap water enters the first flow regulating valve, a certain proportion of the tap water enters the first heat exchanger to be heated to 30 ℃, a certain proportion of the tap water directly passes through the first flow regulating valve and the third electromagnetic valve, then the two paths of the tap water are mixed into the tap water with the water temperature of T3 before the fourth electromagnetic valve, when the fourth temperature sensor detects that the temperature is T3, the first flow regulating valve is adjusted, the mixed tap water with the temperature of T3 passes through the fourth electromagnetic valve, enters the water purification module, and then passes through the water purification module to obtain purified water; at the moment, the direction of the second flow regulating valve entering the hot tank is automatically regulated to enter the hot tank and the second heat exchanger in a certain proportion, one part of the second flow regulating valve directly enters the hot tank through the second flow regulating valve, the other part of the second flow regulating valve enters the hot tank after heat exchange, the basic water temperature entering the hot tank is increased, then an electric heating pipe in the hot tank is started for heating, when the water level sensor detects that the water level is full, the fifth electromagnetic valve and the fourth electromagnetic valve are closed, the water purification module stops working, and when the first temperature sensor detects that the temperature of the water in the hot tank is more than or equal to T1, the electric heating pipe stops working;
when warm water is needed, a third temperature sensor at the water inlet end judges the water inlet temperature, when the water inlet temperature is less than or equal to T2, the water inlet temperature is judged to be in winter, the fifth electromagnetic valve is opened, the third electromagnetic valve is closed, the fourth electromagnetic valve is opened, the first flow regulating valve enters the first heat exchanger to be opened to the maximum, tap water enters the heat exchanger through the first flow regulating valve to be heated to T3, and then the tap water enters the water purification module through the fourth electromagnetic valve; at the moment, the direction of the second flow regulating valve entering the hot tank is automatically regulated to enter the hot tank and the second heat exchanger in a certain proportion, one part of the second flow regulating valve directly enters the hot tank through the second flow regulating valve, and the other part of the second flow regulating valve enters the hot tank after heat exchange, so that the basic water temperature entering the hot tank is improved, then the electric heating pipe in the hot tank is started for heating, when the water level sensor detects that the water level is full, the fifth electromagnetic valve and the fourth electromagnetic valve are closed, the water purification module stops working, and when the first temperature sensor detects that the temperature of the water in the hot tank is more than or equal to T1, the electric heating pipe stops working; the water in the hot tank is cooled through the second heat exchanger, the first heat exchanger is used for cooling, then temperature detection is carried out through the second temperature sensor, if the water temperature is higher than or lower than T4, the sixth electromagnetic valve is opened to drain the water, meanwhile, the water is fed back to the second flow regulating valve to regulate the flow of purified water entering the second heat exchanger, when the second temperature sensor detects that the temperature is T4, the sixth electromagnetic valve is closed, the second electromagnetic valve is opened to obtain warm boiled water required by a user, and the T4 is 43-45 ℃;
if the temperature of the inlet water is higher than T2, summer is judged, the fifth electromagnetic valve is opened, the third electromagnetic valve is opened, the fourth electromagnetic valve is opened, the tap water enters the first flow regulating valve, a certain proportion of the tap water enters the first heat exchanger to be heated to 30 ℃, a certain proportion of the tap water directly passes through the first flow regulating valve and the third electromagnetic valve, then the two paths of tap water are mixed into the tap water with the water temperature of T2 before the fourth electromagnetic valve, when the fourth temperature sensor detects that the temperature is T2 ℃, the first flow regulating valve is adjusted, and the mixed tap water with the temperature of T2 passes through the fourth electromagnetic valve and enters the water purification module; at the moment, the direction of the second flow regulating valve entering the hot tank is automatically regulated to enter the hot tank and the second heat exchanger in a certain proportion, one part of the water enters the hot tank directly through the second flow regulating valve, the other part of the water enters the hot tank after heat exchange of the second heat exchanger, the basic water temperature entering the hot tank is increased, then an electric heating pipe in the hot tank is started for heating, when the water level sensor detects that the water level is full, the fifth electromagnetic valve and the fourth electromagnetic valve are closed, the water purification module stops working, when the first temperature sensor detects that the temperature of the water in the hot tank is not less than T1, the electric heating pipe stops working, the water in the hot tank is cooled through the second heat exchanger, and is cooled through the first heat exchanger, then temperature detection is carried out through the second temperature sensor, if the water temperature is more than or less than T4, the sixth electromagnetic valve is opened to drain the water, and simultaneously feeds back to the second flow regulating valve to regulate the flow of the purified water entering the second heat exchanger, when the second temperature sensor detects that the temperature is T4, the sixth electromagnetic valve is closed, and the second electromagnetic valve is opened, so that warm boiled water required by a user is obtained.
When the third temperature sensor detects that the inlet water temperature is less than T5, the system automatically enters an anti-freezing mode, the fifth electromagnetic valve is opened, the third electromagnetic valve is closed, the fourth electromagnetic valve is opened, the first flow regulating valve enters the first heat exchanger to be opened to the maximum, all tap water enters the first heat exchanger through the first flow regulating valve to be heated to T6, and then the tap water enters the water purification module through the fourth electromagnetic valve; at the moment, the direction of the second flow regulating valve entering the hot tank is automatically regulated to a certain proportion between the direction of the second flow regulating valve entering the hot tank and the direction of the second flow regulating valve entering the second heat exchanger, one part of the second flow regulating valve directly enters the hot tank through the second flow regulating valve, the other part of the second flow regulating valve enters the hot tank after heat exchange, and then the electric heating tube in the hot tank is started to heat. Meanwhile, the sixth electromagnetic valve is opened, water in the hot tank is drained through the sixth electromagnetic valve through the second heat exchanger, the first heat exchanger and the second heat exchanger, the T5 is 0-5 ℃, and the T6 is 10-12 ℃.
Further, the bottom of the hot tank is connected with a second drain pipe, a seventh electromagnetic valve is arranged on the second drain pipe, and the seventh electromagnetic valve is controlled by the controller; when the hot tank is required to be drained, the seventh solenoid valve is opened, and the water in the hot tank is drained through the seventh solenoid valve.
Compared with the prior art, the invention has the advantages that: through multistage heat transfer, energy-conserving again can the constant temperature go out water promptly, can obtain the multiple temperature including cool boiled water to can improve winter water yield, can also prevent frostbite.
Drawings
Fig. 1 is a schematic diagram of the structure of the embodiment.
FIG. 2 is a schematic diagram of an embodiment control interface.
FIG. 3 is a flow chart of the first watering of the embodiment.
Fig. 4 is a flow chart of the emptying of the hot tank.
FIG. 5 is a flow chart of the embodiment when hot water is needed.
FIG. 6 is a flow chart of the embodiment when warm water is required.
FIG. 7 is a flowchart illustrating the operation of the freeze protection mode of the exemplary embodiment when it is turned on.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the energy-saving constant-temperature water purifying device in the present embodiment includes a hot tank 1, a first heat exchanger 41, a second heat exchanger 42, a water inlet pipe 71, a first branch pipe 61, a second branch pipe 62, a third branch pipe 63, a fourth branch pipe 64, a water purifying module 5, and a controller (not shown).
The hot tank 1 is provided with a water level sensor 12, a first temperature sensor 31 and an electric heating tube 11, and the top of the hot tank 1 is provided with an exhaust valve 13. One branch of the water outlet end of the hot pot 1 is connected with a hot water pipe 72, the other branch of the water outlet end of the hot pot 1 is connected with a warm water pipe 73, the hot water pipe 72 is provided with a first electromagnetic valve 21, and the warm water pipe 73 is provided with a second electromagnetic valve 22 and a second temperature sensor 32. The bottom of the hot tank 1 is connected with a second water drain pipe 75, a seventh electromagnetic valve 27 is arranged on the second water drain pipe 75, and the seventh electromagnetic valve 27 is controlled by the controller.
The first heat exchanger 41 is disposed on the warm water pipe 73 and has a second cold end input port and a second hot end output port communicated with the second cold end input port.
The second heat exchanger 42 is arranged on the warm water pipe 73 and positioned between the first heat exchanger 41 and the hot tank 1, and the second heat exchanger 42 is provided with a first cold end input port and a first hot end output port communicated with the first cold end input port.
The water inlet pipe 71 is connected to the water inlet end of the hot tank 1, the water inlet pipe 71 is provided with a first flow regulating valve 35, a third electromagnetic valve 23, a fourth electromagnetic valve 24 and a second flow regulating valve 36 in sequence from the water inlet to the water outlet, the water inlet pipe 71 is provided with a third temperature sensor 33 at the front end of the first flow regulating valve 35, and the water inlet pipe 71 is provided with a third temperature sensor 33 at the front end of the second flow regulating valve 36. The water inlet pipe 71 is provided with a first check valve 38 at the rear end of the third electromagnetic valve 23.
The first branch pipe 61 is connected between the second cold end input port and the first flow regulating valve 35, and the fifth electromagnetic valve 25 is arranged on the first branch pipe 61; and a second branch pipe 62 connected between the second hot end output port and the water inlet pipe 71, wherein the water outlet end of the second branch pipe 62 is located between the third solenoid valve 23 and the fourth solenoid valve 24, and a second one-way valve 37 is arranged on the second branch pipe 62.
The third branch 63 is connected between the first cold end output port and the second flow regulating valve 36; a fourth branch 64 is connected between the first warm end output port and the inlet pipe 71, and the outlet end of the fourth branch 64 is located between the second flow regulating valve 36 and the inlet port of the hot tank 1. The water purification module 5 is arranged on the water inlet pipe 71 and is used for carrying out water purification and filtration treatment on the water entering the hot tank 1.
The controller has a control input end connected with the water level sensor 12, the first temperature sensor 31, the second temperature sensor 32, the third temperature sensor 33 and the fourth temperature sensor 34, and a control output end connected with the electrothermal tube 11, the first electromagnetic valve 21, the second electromagnetic valve 22, the third electromagnetic valve 23, the fourth electromagnetic valve 24, the fifth electromagnetic valve 25, the first flow regulating valve 35 and the second flow regulating valve 36.
A first drainage pipe 74 is led out from the water outlet end of the warm water pipe 73, a sixth electromagnetic valve 26 is arranged on the first drainage pipe 74, and the sixth electromagnetic valve 26 is controlled by the controller.
The water temperature control method comprises the following steps:
as shown in fig. 3, when water is supplied for the first time, the fifth electromagnetic valve 25 is closed, the third electromagnetic valve 23 and the fourth electromagnetic valve 24 are opened, tap water passes through the third temperature sensor 33, the first flow regulating valve 35 is opened to the maximum at the moment, then the tap water passes through the third electromagnetic valve 23 and the fourth electromagnetic valve 24, enters the water purification module 5, and then passes through the water purification module 5 to obtain purified water; at the moment, the direction of the second flow regulating valve 36 entering the hot tank 1 is automatically regulated to the maximum, purified water enters the hot tank 1 through the second flow regulating valve 36 of the water storage tank, when the water level sensor 12 in the hot tank 1 detects that the water is full, the third electromagnetic valve 23 and the fourth electromagnetic valve 24 are closed at the moment, the electric heating pipe 11 starts to heat, and when the first temperature sensor 31 detects that the temperature of the water in the hot tank 1 is larger than or equal to 90 ℃, the electric heating pipe 11 stops working.
As shown in fig. 5, when hot water is needed, the first electromagnetic valve 21 is opened, the water in the hot tank 1 is supplied to a user through the first electromagnetic valve 21, meanwhile, the third temperature sensor 33 at the water inlet end performs water inlet temperature judgment, the water inlet temperature is judged to be in winter when being less than or equal to 15 ℃, the fifth electromagnetic valve 25 is opened, the third electromagnetic valve 23 is closed, the fourth electromagnetic valve 24 is opened, the first flow regulating valve 35 enters the first heat exchanger 41 and is opened to the maximum, tap water enters the first heat exchanger 41 through the first flow regulating valve 35 to heat the tap water to 25 ℃, then the tap water enters the water purification module 5 through the fourth electromagnetic valve 24, the second flow regulating valve 36 enters the hot tank 1 automatically to a certain proportion, and enters the hot tank 1 after heat exchange, a part of the tap water enters the second heat exchanger 42 and enters the hot tank 1, and then the electric heating pipe 11 in the hot tank 1 is started to heat, when the water level sensor 12 detects that the water is full, the fifth electromagnetic valve 25 and the fourth electromagnetic valve 24 are closed, the water purification module 5 stops working, and when the first temperature sensor 31 detects that the temperature of the water in the hot tank 1 is more than or equal to 90 ℃, the electric heating pipe 11 stops working.
If the temperature of the inlet water is higher than 15 ℃, summer is judged, the fifth electromagnetic valve 25 is opened, the third electromagnetic valve 23 is opened, the fourth electromagnetic valve 24 is opened, the tap water enters the first flow regulating valve 35, a certain proportion of the tap water enters the first heat exchanger 41 to be heated to 30 ℃, a certain proportion of the tap water directly passes through the first flow regulating valve 35 and the third electromagnetic valve 23, then the two paths of tap water are mixed into the tap water with the water temperature of 25 ℃ before the fourth electromagnetic valve 24, when the fourth temperature sensor 34 detects that the temperature is 25 ℃, the first flow regulating valve 35 is adjusted to be finished, the mixed tap water with the temperature of 25 ℃ passes through the fourth electromagnetic valve 24, enters the water purification module 5, and then passes through the water purification module 5 to obtain purified water; at this time, the direction of the second flow regulating valve 36 entering the hot tank 1 is automatically regulated to a certain proportion entering the hot tank 1 and entering the second heat exchanger 42, one part of the second flow regulating valve 36 directly enters the hot tank 1, the other part of the second flow regulating valve enters the hot tank 1 after heat exchange, the basic water temperature entering the hot tank 1 is increased, then the electric heating tube 11 in the hot tank 1 is started to heat, when the water level sensor 12 detects that the water is full, the fifth electromagnetic valve 25 and the fourth electromagnetic valve 24 are closed, the water purification module 5 stops working, and when the first temperature sensor 31 detects that the temperature of the water in the hot tank 1 is larger than or equal to 90 ℃, the electric heating tube 11 stops working.
As shown in fig. 6, when warm water is needed, the third temperature sensor 33 at the water inlet end judges the water inlet temperature, when the water inlet temperature is less than or equal to 15 ℃, the water inlet temperature is judged to be in winter, at this time, the fifth electromagnetic valve 25 is opened, the third electromagnetic valve 23 is closed, the fourth electromagnetic valve 24 is opened, at this time, the first flow regulating valve 35 enters the first heat exchanger 41 to be opened to the maximum, tap water enters the heat exchanger through the first flow regulating valve 35 to heat the tap water to 25 ℃, and then the tap water enters the water purification module 5 through the fourth electromagnetic valve 24; at the moment, the direction of the second flow regulating valve 36 entering the hot tank 1 is automatically regulated to enter the hot tank 1 and the second heat exchanger 42 in a certain proportion, one part of the second flow regulating valve 36 directly enters the hot tank 1, and the other part of the second flow regulating valve 36 enters the hot tank 1 after heat exchange, so that the basic water temperature entering the hot tank 1 is improved, then the electric heating tube 11 in the hot tank 1 is started for heating, when the water level sensor 12 detects that the water is full, the fifth electromagnetic valve 25 and the fourth electromagnetic valve 24 are closed, the water purification module 5 stops working, and when the first temperature sensor 31 detects that the temperature of the water in the hot tank 1 is more than or equal to 90 ℃, the electric heating tube 11 stops working; the water in the hot tank 1 is cooled through the second heat exchanger 42, is cooled through the first heat exchanger 41, is subjected to temperature detection through the second temperature sensor 32, if the water temperature is higher than or lower than 45 ℃, the sixth electromagnetic valve 26 is opened to drain the water, and simultaneously the water is fed back to the second flow regulating valve 36 to regulate the flow of the purified water entering the second heat exchanger 42, when the temperature detected by the second temperature sensor 32 is 45 ℃, the sixth electromagnetic valve 26 is closed, and the second electromagnetic valve 22 is opened to obtain warm boiled water required by a user;
if the temperature of the inlet water is higher than 15 ℃, summer is judged, the fifth electromagnetic valve 25 is opened, the third electromagnetic valve 23 is opened, the fourth electromagnetic valve 24 is opened, the tap water enters the first flow regulating valve 35, a certain proportion of the tap water enters the first heat exchanger 41 to be heated to 30 ℃, a certain proportion of the tap water directly passes through the first flow regulating valve 35 and the third electromagnetic valve 23, then the two paths of tap water are mixed into the tap water with the water temperature of 15 ℃ before the fourth electromagnetic valve 24, when the fourth temperature sensor 34 detects that the temperature is 15 ℃, the first flow regulating valve 35 is adjusted to be finished, and the mixed tap water with the temperature of 15 ℃ passes through the fourth electromagnetic valve 24 to enter the water purification module 5; at the moment, the direction of the second flow regulating valve 36 entering the hot tank 1 is automatically regulated to enter the hot tank 1 and the second heat exchanger 42 in a certain proportion, one part of the second flow regulating valve 36 directly enters the hot tank 1 through the second flow regulating valve 36, the other part of the second flow regulating valve enters the hot tank 1 after heat exchange, the basic water temperature entering the hot tank 1 is increased, then the electric heating pipe 11 in the hot tank 1 is started for heating, when the water level sensor 12 detects that the water is full, the fifth electromagnetic valve 25 and the fourth electromagnetic valve 24 are closed, the water purification module 5 stops working, when the first temperature sensor 31 detects that the temperature of the water in the hot tank 1 is more than or equal to 90 ℃, the electric heating pipe 11 stops working, the water in the hot tank 1 is cooled through the second heat exchanger 42, is cooled through the first heat exchanger 41, then is subjected to temperature detection through the second temperature sensor 32, if the water temperature is more than or less than 45 ℃, the sixth electromagnetic valve 26 is opened, the water is drained and fed back to the second flow regulating valve 36 to regulate the flow of the purified water entering the second heat exchanger 42, when the temperature detected by the second temperature sensor 32 is 45 ℃, the sixth electromagnetic valve 26 is closed, and the second electromagnetic valve 22 is opened to obtain the warm boiled water required by the user.
As shown in fig. 7, when the third temperature sensor 33 detects that the temperature of the inlet water is less than 5 ℃, the system automatically enters an anti-freezing mode, at this time, the fifth electromagnetic valve 25 is opened, the third electromagnetic valve 23 is closed, the fourth electromagnetic valve 24 is opened, at this time, the first flow regulating valve 35 enters the first heat exchanger 41 and is opened to the maximum, all the tap water enters the first heat exchanger 41 through the first flow regulating valve 35 to heat the tap water to 10 ℃, and then the tap water enters the water purification module 5 through the fourth electromagnetic valve 24; at the moment, the direction of the second flow regulating valve 36 entering the hot tank 1 is automatically regulated to enter the hot tank 1 and the second heat exchanger 42 in a certain proportion, one part of the second flow regulating valve 36 directly enters the hot tank 1, the other part of the second flow regulating valve 36 enters the second heat exchanger 42 for heat exchange and then enters the hot tank 1, and then the electric heating tube 11 in the hot tank 1 is started for heating. Meanwhile, the sixth solenoid valve 26 is opened, and the water in the hot tank 1 is drained through the sixth solenoid valve 26 through the second heat exchanger 42 and the first heat exchanger 41.
As shown in fig. 4, when the hot tank 1 needs to be emptied, the seventh solenoid valve 27 is opened, and the water in the hot tank 1 is emptied through the seventh solenoid valve 27 and the check valve 39.
Referring to fig. 2, the operation panel 8 is provided with a hot water key 81, a warm water key 82, an evacuation key 83, a temperature display screen 84, and an anti-freeze mode display screen 85, and when hot water is required, the hot water key 81 is pressed, when warm water is required, the warm water key 82 is pressed, and when evacuation is required, the evacuation key 83 is pressed.
Claims (6)
1. A water temperature control method of an energy-saving constant-temperature water purifying device is characterized in that the related energy-saving constant-temperature water purifying device comprises the following steps:
the hot pot (1) is provided with a water level sensor (12), a first temperature sensor (31) and an electric heating pipe (11), one branch of the water outlet end of the hot pot (1) is connected with a hot water pipe (72), the other branch of the water outlet end of the hot pot (1) is connected with a warm water pipe (73), the hot water pipe (72) is provided with a first electromagnetic valve (21), and the warm water pipe (73) is provided with a second electromagnetic valve (22) and a second temperature sensor (32);
the first heat exchanger (41) is arranged on the warm water pipe (73) and is provided with a second cold end input port and a second hot end output port communicated with the second cold end input port;
the second heat exchanger (42) is arranged on the warm water pipe (73) and is positioned between the first heat exchanger (41) and the hot tank (1), and the second heat exchanger (42) is provided with a first cold end input port and a first hot end output port communicated with the first cold end input port;
the water inlet pipe (71) is connected to the water inlet end of the hot tank (1), the water inlet pipe (71) is sequentially provided with a first flow regulating valve (35), a third electromagnetic valve (23), a fourth electromagnetic valve (24) and a second flow regulating valve (36) from the water inlet to the water outlet, the water inlet pipe (71) is provided with a third temperature sensor (33) at the front end of the first flow regulating valve (35), and the water inlet pipe (71) is provided with a third temperature sensor (33) at the front end of the second flow regulating valve (36);
a first branch pipe (61) connected between the second cold end input port and the first flow regulating valve (35), wherein a fifth electromagnetic valve (25) is arranged on the first branch pipe (61);
a second branch pipe (62) connected between the second hot end output port and the water inlet pipe (71), wherein the water outlet end of the second branch pipe (62) is positioned between the third electromagnetic valve (23) and the fourth electromagnetic valve (24);
a third branch (63) connected between said first cold end input port and said second flow regulator valve (36);
a fourth branch pipe (64) connected between the first hot end output port and the water inlet pipe (71), wherein the water outlet end of the fourth branch pipe (64) is positioned between the second flow regulating valve (36) and the water inlet port of the hot tank (1); and
the water purification module (5) is arranged on the water inlet pipe (71) and is used for carrying out water purification and filtration treatment on the water entering the hot tank (1); and
a controller, the control input end of which is connected with the water level sensor (12), the first temperature sensor (31), the second temperature sensor (32), the third temperature sensor (33) and the fourth temperature sensor (34), and the control output end of which is connected with the electric heating tube (11), the first electromagnetic valve (21), the second electromagnetic valve (22), the third electromagnetic valve (23), the fourth electromagnetic valve (24), the fifth electromagnetic valve (25), the first flow regulating valve (35) and the second flow regulating valve (36);
a first drainage pipe (74) is led out from the water outlet end of the warm water pipe (73), a sixth electromagnetic valve (26) is arranged on the first drainage pipe (74), and the sixth electromagnetic valve (26) is controlled by a controller;
the method comprises the following steps:
when water is fed for the first time, the fifth electromagnetic valve (25) is closed, the third electromagnetic valve (23) and the fourth electromagnetic valve (24) are opened, tap water passes through the third temperature sensor (33), the first flow regulating valve (35) is opened to the maximum at the moment, then the tap water enters the water purification module (5) through the third electromagnetic valve (23) and the fourth electromagnetic valve (24), and then purified water is obtained after passing through the water purification module (5); at the moment, the direction of the second flow regulating valve (36) entering the hot tank (1) is automatically regulated to the maximum, purified water enters the hot tank (1) through the second flow regulating valve (36) of the water storage tank, when the water level sensor (12) in the hot tank (1) detects that the water is full, the third electromagnetic valve (23) and the fourth electromagnetic valve (24) are closed, the electric heating pipe (11) starts to heat, when the first temperature sensor (31) detects that the temperature of the water in the hot tank (1) is larger than or equal to T1, the electric heating pipe (11) stops working, and the T1 is 90-95 ℃;
when hot water is needed, the first electromagnetic valve (21) is opened at the moment, water in the hot tank (1) is supplied to a user through the first electromagnetic valve (21), meanwhile, the third temperature sensor (33) at the water inlet end judges the water inlet temperature, the water inlet temperature is less than or equal to T2, the winter is judged, the fifth electromagnetic valve (25) is opened at the moment, the third electromagnetic valve (23) is closed, the fourth electromagnetic valve (24) is opened, the direction of the first flow regulating valve (35) entering the first heat exchanger (41) is opened to the maximum, tap water enters the first heat exchanger (41) through the first flow regulating valve (35) to be heated to T3, then the tap water enters the water purification module (5) through the fourth electromagnetic valve (24), the direction of the second flow regulating valve (36) entering the hot tank (1) is automatically regulated to a certain proportion, and then enters the hot tank (1) after being subjected to heat exchange, a part of the second heat exchanger (42), then an electric heating tube (11) in the hot tank (1) is started to heat, when a water level sensor (12) detects that the water level is full, a fifth electromagnetic valve (25) and a fourth electromagnetic valve (24) are closed, a water purification module (5) stops working, when a first temperature sensor (31) detects that the temperature of the water in the hot tank (1) is larger than or equal to T1, the electric heating tube (11) stops working, the T2 is 5-15 ℃, and the T3 is 20-25 ℃;
if the inlet water temperature is higher than T2, summer is judged, the fifth electromagnetic valve (25) is opened at the moment, the third electromagnetic valve (23) is opened, the fourth electromagnetic valve (24) is opened, the tap water enters the first flow regulating valve (35) at the moment, a certain proportion of the tap water enters the first heat exchanger (41) to be heated to 30 ℃, the certain proportion of the tap water directly passes through the first flow regulating valve (35) and the third electromagnetic valve (23), then the two paths of tap water are mixed into the tap water with the water temperature of T3 before the fourth electromagnetic valve (24), when the fourth temperature sensor (34) detects that the temperature is T3, the first flow regulating valve (35) is adjusted, the mixed tap water with the temperature of T3 passes through the fourth electromagnetic valve (24) to enter the water purification module (5), and then purified water is obtained after passing through the water purification module (5); at the moment, the direction of the second flow regulating valve (36) entering the hot tank (1) is automatically regulated to enter the hot tank (1) and enter the second heat exchanger (42) in a certain proportion, one part of the second flow regulating valve directly enters the hot tank (1) through the second flow regulating valve (36), the other part of the second flow regulating valve enters the hot tank (1) after heat exchange, the basic water temperature entering the hot tank (1) is increased, then the electric heating pipe (11) in the hot tank (1) is started to heat, when the water level sensor (12) detects that the water is full of water, the fifth electromagnetic valve (25) and the fourth electromagnetic valve (24) are closed, the water purifying module (5) stops working, and when the first temperature sensor (31) detects that the temperature of the water in the hot tank (1) is not less than T1, the electric heating pipe (11) stops working;
when warm water is needed, a third temperature sensor (33) at a water inlet end judges the water inlet temperature, when the water inlet temperature is less than or equal to T2, the water inlet temperature is judged to be in winter, at the moment, a fifth electromagnetic valve (25) is opened, a third electromagnetic valve (23) is closed, a fourth electromagnetic valve (24) is opened, at the moment, a first flow regulating valve (35) enters a first heat exchanger (41) and is opened to the maximum, tap water enters the heat exchanger through the first flow regulating valve (35) to be heated to T3, and then enters a water purification module (5) through the fourth electromagnetic valve (24); at the moment, the direction of the second flow regulating valve (36) entering the hot tank (1) is automatically regulated to enter the hot tank (1) and enter the second heat exchanger (42) according to a certain proportion, one part of the second flow regulating valve directly enters the hot tank (1) through the second flow regulating valve (36), the other part of the second flow regulating valve enters the hot tank (1) after heat exchange, so that the basic water temperature entering the hot tank (1) is increased, then the electric heating pipe (11) in the hot tank (1) is started for heating, when the water level sensor (12) detects that the water level is full, the fifth electromagnetic valve (25) and the fourth electromagnetic valve (24) are closed, the water purification module (5) stops working, and when the first temperature sensor (31) detects that the temperature of the water in the hot tank (1) is not less than T1, the electric heating pipe (11) stops working; the water in the hot tank (1) is cooled through the second heat exchanger (42), and is cooled through the first heat exchanger (41), and then is subjected to temperature detection through the second temperature sensor (32), if the water temperature is greater than or less than T4, the sixth electromagnetic valve (26) is opened to drain the water, and simultaneously the water is fed back to the second flow regulating valve (36) to regulate the flow of purified water entering the second heat exchanger (42), when the second temperature sensor (32) detects that the temperature is T4, the sixth electromagnetic valve (26) is closed, the second electromagnetic valve (22) is opened to obtain warm boiled water required by a user, and the T4 is 43-45 ℃;
when the third temperature sensor (33) detects that the inlet water temperature is less than T5, the system automatically enters an anti-freezing mode, the fifth electromagnetic valve (25) is opened, the third electromagnetic valve (23) is closed, the fourth electromagnetic valve (24) is opened, the first flow regulating valve (35) enters the first heat exchanger (41) and is opened to the maximum, all tap water enters the first heat exchanger (41) through the first flow regulating valve (35) to be heated to T6, and then enters the water purification module (5) through the fourth electromagnetic valve (24); at the moment, the direction of the second flow regulating valve (36) entering the hot tank (1) is automatically regulated to enter the hot tank (1) and enter the second heat exchanger (42) according to a certain proportion, one part of the second flow regulating valve directly enters the hot tank (1) through the second flow regulating valve (36), the other part of the second flow regulating valve enters the hot tank (1) after heat exchange of the second heat exchanger (42), and then the electric heating pipe (11) in the hot tank (1) is started to heat; meanwhile, the sixth electromagnetic valve (26) is opened, water in the hot tank (1) is drained through the sixth electromagnetic valve (26) through the second heat exchanger (42) and the first heat exchanger (41), the temperature of T5 is 0-5 ℃, and the temperature of T6 is 10-12 ℃.
2. The water temperature control method of the energy-saving constant-temperature water purifying device according to claim 1, characterized in that a second drain pipe (75) is connected to the bottom of the hot tank (1), a seventh electromagnetic valve (27) is arranged on the second drain pipe (75), and the seventh electromagnetic valve (27) is controlled by the controller.
3. The water temperature control method of the energy-saving constant-temperature water purifying device as claimed in claim 1, wherein the water inlet pipe (71) is provided with a first one-way valve (38) at the rear end of the third electromagnetic valve (23).
4. The water temperature control method of the energy-saving constant-temperature water purifying device as claimed in claim 1, wherein a second one-way valve (37) is provided on the second branch pipe (62).
5. The water temperature control method of the energy-saving constant-temperature water purifying device according to claim 1, characterized in that an exhaust valve (13) is arranged at the top of the hot tank (1).
6. The water temperature control method of the energy-saving constant-temperature water purifying device according to claim 1, characterized in that a second drain pipe (75) is connected to the bottom of the hot tank (1), a seventh electromagnetic valve (27) is arranged on the second drain pipe (75), and the seventh electromagnetic valve (27) is controlled by a controller; when the hot tank (1) needs to be emptied, the seventh electromagnetic valve (27) is opened, and the water in the hot tank (1) is emptied through the seventh electromagnetic valve (27).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110021685.8A CN112856808B (en) | 2021-01-08 | 2021-01-08 | Water temperature control method of energy-saving constant-temperature water purifying device |
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| CN202110021685.8A CN112856808B (en) | 2021-01-08 | 2021-01-08 | Water temperature control method of energy-saving constant-temperature water purifying device |
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| CN112856808B true CN112856808B (en) | 2022-02-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2005100473B4 (en) * | 2005-06-03 | 2005-07-14 | Rheem Australia Pty Limited | Water heater |
| CN2912461Y (en) * | 2006-06-06 | 2007-06-20 | 巫宗权 | Gerotor type energy-saving drinker |
| CN201522087U (en) * | 2009-10-30 | 2010-07-07 | 刘硕 | Dual-purpose water boiler for warm water and hot water |
| US8851022B2 (en) * | 2010-10-05 | 2014-10-07 | Laars Heating Systems Company | Water heating system and method for using the same |
| CN102671545A (en) * | 2012-05-17 | 2012-09-19 | 美的集团有限公司 | Reverse osmosis water purifier with preheating system |
| CN105540903B (en) * | 2016-03-08 | 2019-06-28 | 太阳雨集团有限公司 | Heating and temperature controlling device and the reverse osmosis purified water system for using the device |
| CN106524490A (en) * | 2016-12-26 | 2017-03-22 | 北京宏华电器有限公司 | Novel water heating device |
| CN111578508A (en) * | 2020-05-26 | 2020-08-25 | 宁波方太厨具有限公司 | Constant-temperature water supply system and control method thereof |
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