CN210425576U - Water heater system - Google Patents
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- CN210425576U CN210425576U CN201921346617.3U CN201921346617U CN210425576U CN 210425576 U CN210425576 U CN 210425576U CN 201921346617 U CN201921346617 U CN 201921346617U CN 210425576 U CN210425576 U CN 210425576U
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Abstract
The utility model provides a water heater system, which comprises a water heater and a heat preservation type water storage tank; thermocouples are arranged in the water heater and the heat preservation type water storage tank, and the controller is electrically connected with the water heater, the heat preservation type water storage tank, the thermocouples, the normally closed electromagnetic valve and the water pump respectively; the water heater comprises a four-way piece, a first three-way piece, a second three-way piece, a water inlet end, a water outlet end and a water outlet end, wherein the four-way piece is connected with the first end of the four-way piece; the third end of the four-way piece is connected with the water inlet end of the heat preservation type water storage tank through a water pump, and the water outlet end of the heat preservation type water storage tank is connected with the first three-way piece; the water outlet end of the water heater is connected with the fourth end of the four-way piece through a normally closed solenoid valve. The utility model provides an instant heating type electric water heater hot water output temperature under the low temperature condition is not up to standard, rivers undersize problem, utilizes the intermittent type nature to use the custom of hot water and the rapid heating hot water of water heater to combine together, realizes the optimization of water heater system.
Description
Technical Field
The utility model belongs to the technical field of the water heater and specifically relates to a water heater system is related to.
Background
At present, the household water heaters sold in the market mainly comprise a gas water heater, a water tank heat storage type electric water heater and an instant electric water heater. The gas water heater has the advantage of realizing instant and continuous hot water supply, but the essential condition for using the gas water heater is to arrange a gas source such as pipeline gas or a gas storage tank, so that certain danger exists during use, and the portability is low. Although the water tank heat storage type electric water heater is simple to use, hot water can be supplied only by mains supply, but the problems that the water temperature in the water storage tank is high, and scale is generated in the continuous heating and storing process exist, the water in the water storage tank is polluted because the scale is not easy to be discharged, and the skin of a user is easily allergic due to the polluted water. Compared with the two water heaters, the instant electric water heater and the gas water heater have similar working principles, but the heating mode is changed from gas to electricity, and compared with the gas water heater and the water tank heat storage type electric water heater, the instant electric water heater has the advantages of fast hot water outlet, high heat efficiency, no scale deposit, safety, environmental protection, no occupation of space and the like. However, the instant electric water heater is a heating-at-any mode, and because the maximum output power of the instant electric water heater is limited, when the instant electric water heater is cold in the weather, particularly the temperature of tap water in the north is low, if the instant electric water heater is required to heat water to a proper water temperature, the water yield is reduced, and the use experience of a user is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water heater system to solve the technical problem that instant heating type electric water heater hot water output temperature under the low temperature condition is not up to standard, rivers undersize, the utility model discloses realize the structural optimization of water heater system, realize hot water compensation, satisfy the hot water supply demand, improve the user and use hydrothermal experience.
In order to solve the technical problem, an embodiment of the present invention provides a water heater system, which includes a water heater, a heat preservation type water storage tank, a controller, a tap water inlet end of the water heater, a hot water outlet end of the water heater, a normally closed solenoid valve, a four-way member, a first three-way member, and a water pump;
thermocouples for detecting water temperature are arranged in the water heater and the heat preservation type water storage tank, and the controller is electrically connected with the water heater, the heat preservation type water storage tank, the thermocouples, the normally closed electromagnetic valve and the water pump respectively;
the water heater is characterized in that a tap water inlet end of the water heater is connected with a first end of the four-way piece, a second end of the four-way piece is connected with a first end of the first three-way piece, a second end of the first three-way piece is connected with a water inlet end of the water heater, and a water outlet end of the water heater is connected with a hot water outlet end of the water heater;
the third end of the four-way piece is connected with the water inlet end of the heat preservation type water storage tank through the water pump, and the water outlet end of the heat preservation type water storage tank is connected with the third end of the first three-way piece;
and the water outlet end of the water heater is connected with the fourth end of the four-way piece through the normally closed electromagnetic valve.
Preferably, the first three-way component is an electronic proportional valve, the water pump is a circulating water pump, and the electronic proportional valve is electrically connected with the controller.
As a preferred scheme, the water heater system further comprises a first one-way valve, the second end of the four-way member is connected with the water inlet end of the first one-way valve, and the water outlet end of the first one-way valve is connected with the first end of the first three-way member;
the first three-way piece is a three-way connecting piece, and the water pump is a circulating water pump with a speed regulating function.
Preferably, the thermocouple comprises a first thermocouple, a second thermocouple and a third thermocouple which are electrically connected with the controller respectively;
the first thermocouple is installed in a water inlet end pipeline of the water heater, the second thermocouple is installed in a water outlet end pipeline of the water heater, and the third thermocouple is installed in the heat-preservation water storage tank.
Preferably, the water heater system further comprises a first flow meter and a second flow meter which are respectively electrically connected with the controller;
the first flow meter is installed in a connecting pipeline between a tap water inlet end of the water heater and the four-way piece, and the second flow meter is installed in a connecting pipeline between a water outlet end of the water heater and a hot water outlet end.
Preferably, the four-way piece is a four-way valve or a four-way pipe.
Preferably, the water heater is an electric water heater or an instant electric water heater.
Preferably, the water heater system further comprises a second one-way valve;
the hot water outlet end of the water heater is connected to the water inlet of the second one-way valve through the hot water using end, the water outlet of the second one-way valve is connected with the tap water inlet, and the tap water inlet is connected to the tap water inlet end of the water heater.
Preferably, the water heater system further comprises a second three-way piece and a third one-way valve;
the hot water outlet end of the water heater is connected to the water inlet of the third one-way valve through the hot water using end, the water outlet of the third one-way valve is connected to the first end of the second three-way piece, the second end of the second three-way piece is connected to the tap water inlet end of the water heater, and the third end of the second three-way piece is connected to the tap water inlet.
Preferably, the second three-way piece is a three-way pipe or a three-way valve.
Compared with the prior art, the embodiment of the utility model provides a have following beneficial effect:
1. the water heater generates heat by utilizing electric energy to convert water with lower temperature supplied by a tap water inlet end of the water heater into water with higher temperature, and finally hot water flows out from a hot water outlet end of the water heater to realize quick supply of the hot water.
2. In a low-temperature environment, the water heater makes hot water sequentially pass through the water outlet end of the water heater, the normally closed solenoid valve, the four-way piece, the water pump and the water inlet end of the heat-preservation water storage tank and enter the heat-preservation water storage tank for hot water storage, so that preparation and storage of a large amount of hot water are realized.
3. Under the condition of low-temperature environment, when a user uses hot water, the water temperature at the water inlet end of the water heater is lower than the limit values of conditions such as set flow rate of the water heater, maximum power temperature rise, set outlet water temperature of the user and the like, the actual outlet water temperature or flow rate of the water outlet end of the water heater cannot meet the set requirements, the first three-way piece is taken as an electronic proportional valve as an example, and at the moment, the controller enables the water temperature flowing out of the second end of the electronic proportional valve to reach or be higher than the minimum inlet water temperature under the related conditions by adjusting the relative proportion of the first end and the third end of the electronic proportional valve. In the process, part of tap water at the tap water inlet end of the water heater sequentially flows to the first end of the electronic proportional valve through the first flow meter, the first end and the second end of the four-way piece; and part of tap water flows through the water pump through the first flow meter, the first end and the third end of the four-way piece and finally flows into the heat preservation type water storage tank. In this mode, the water temperature of the heat preservation type water storage tank can be reduced according to the proportion of the flowing-in tap water flow, and then the controller can adjust the proportion of the first end and the third end of the electronic proportional valve according to the real-time water temperature of the heat preservation type water storage tank detected by the third thermocouple.
4. When the water heater is used in a low-temperature environment, because the hot water in the heat-preservation water storage tank is diluted by normal-temperature tap water, when a user uses the hot water, the hot water is temporarily stopped or the water is finished, the temperature of the water in the heat-preservation water storage tank needs to be compensated and increased, so that the water can be used next time. At the moment, the controller starts the water pump, opens the normally closed electromagnetic valve, feeds back a water flow signal to the controller through the second flowmeter, starts the heating device of the water heater, and raises the water temperature in the heat preservation type water storage tank to a set temperature by using a time period as short as possible and a proper heating power. Through the water outlet end of the heat preservation type water storage tank, the first three-way piece (the third end of the electronic proportional valve or the three-way connecting piece is completely communicated with the second end, and the first end and the second end are completely cut off), the water inlet end of the water heater, the water outlet end, the normally closed electromagnetic valve, the four-way piece, the water pump and the water inlet end path of the heat preservation type water storage tank, water in the heat preservation type water storage tank is heated in a time period when a user does not use hot water, so that the water temperature at the water inlet end of the water heater is supplemented when the user uses the water again, and the defects that when the temperature of tap water is too low, the temperature and the water flow at the water outlet end of the water heater are insufficient, and the load of a power supply circuit is.
Drawings
Fig. 1 is a schematic structural diagram of a water heater system in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a water heater system in an embodiment of the present invention;
FIGS. 3 a-3 e respectively illustrate hot water flow path diagrams for the water heater system of FIG. 1;
FIGS. 4 a-4 e illustrate hot water flow path diagrams for the water heater system of FIG. 2, respectively;
FIG. 5 is a circuit block diagram of the water heater system of FIG. 1;
FIG. 6 is a circuit block diagram of the water heater system of FIG. 2;
FIG. 7 is a schematic diagram of the structure of an electronic proportional valve;
wherein the reference numbers in the drawings of the specification are as follows:
1. a tap water inlet end of the water heater; 2. a hot water outlet end of the water heater; 3. a normally closed solenoid valve; 4. a water pump; 5. a four-way member; 6. a tap water inlet; 7. a first tee member; 8. a first check valve; 81. a second one-way valve; 83. a third check valve; 9. a first flow meter; 91. a second flow meter; 10. a first thermocouple; 101. a second thermocouple; 102. a third thermocouple;
12. a valve body; 13. a cold and hot water mixing chamber; 14. a water mixing valve core; 15. a thermocouple; 16. driving an actuating motor mechanism; 17. a control panel; 18. a hot or cold water inlet; 19. a cold or hot water inlet; 20. and (4) a mixed water outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a preferred embodiment of the present invention provides a water heater system, which includes a water heater, a thermal insulation water storage tank, a controller, a tap water inlet end 1 of the water heater, a hot water outlet end 2 of the water heater, a normally closed solenoid valve 3, a four-way member 5, a first three-way member 7, and a water pump 4; the first three-way part 7 is an electronic proportional valve or a three-way connecting part, the water heater is an electric water heater or an instant electric water heater, the four-way part 5 is a four-way valve or a four-way pipe, and the water pump 4 is a circulating water pump or a circulating water pump with a speed regulation function.
Thermocouples for detecting water temperature are arranged in the water heater and the heat preservation type water storage tank, and the controller is electrically connected with the water heater, the heat preservation type water storage tank, the thermocouples, the normally closed electromagnetic valve 3 and the water pump respectively; the thermocouples comprise a first thermocouple 10, a second thermocouple 101 and a third thermocouple 102 which are respectively electrically connected with the controller; the first thermocouple 10 is installed in a water inlet end pipeline of the water heater, the second thermocouple 101 is installed in a water outlet end pipeline of the water heater, and the third thermocouple 102 is installed in the heat preservation type water storage tank.
The tap water inlet end 1 of the water heater is connected with the first end of the four-way piece 5, the second end of the four-way piece 5 is connected with the first end of the first three-way piece 7, the second end of the first three-way piece 7 is connected with the water inlet end of the water heater, and the water outlet end of the water heater is connected with the hot water outlet end 2 of the water heater;
the third end of the four-way piece 5 is connected with the water inlet end of the heat preservation type water storage tank through the water pump, and the water outlet end of the heat preservation type water storage tank is connected with the third end of the first three-way piece 7;
and the water outlet end of the water heater is connected with the fourth end of the four-way piece 5 through the normally closed electromagnetic valve 3.
Preferably, the water heater system further comprises a first flow meter 9 and a second flow meter 91 electrically connected with the controller respectively;
the first flow meter 9 is installed on a connecting pipeline between the tap water inlet end 1 of the water heater and the four-way piece 5, and the second flow meter 91 is installed on a connecting pipeline between the water outlet end of the water heater and the hot water outlet end.
In this embodiment, the water heater generates heat by using electric energy to convert the water with a low temperature supplied from the tap water inlet end 1 of the water heater into water with a high temperature, and finally hot water flows out through the hot water outlet end 2 of the water heater to realize rapid supply of hot water.
In a low-temperature environment, the water heater makes hot water sequentially pass through the water outlet end of the water heater, the normally closed electromagnetic valve 3, the four-way piece 5, the water pump and the water inlet end of the heat-preservation water storage tank and enter the heat-preservation water storage tank for hot water storage, so that preparation and storage of a large amount of hot water are realized.
In a low-temperature environment, hot water stored in the heat-preservation water storage tank sequentially passes through the water outlet end of the heat-preservation water storage tank, the third end of the first tee joint piece 7 (an electronic proportional valve or a tee joint piece), the second end of the first tee joint piece 7 and the water inlet end of the water heater to enter the water heater for heating, and in the process, water with higher temperature in the heat-preservation water storage tank and water with lower temperature at the tap water inlet end 1 of the water heater are mixed with each other to improve the temperature of tap water entering the water heater, so that the effects that hot water can be rapidly supplied, the temperature of the hot water reaches the use requirement and the water quantity is sufficient in the low-temperature environment are achieved through the heating effect of the instant electric water heater.
The heat preservation type water storage tank has a cold water replenishing function, tap water at a tap water inlet end 1 of the water heater passes through the four-way piece 5 and the water pump enters the heat preservation type water storage tank to realize cold water replenishment, so that the problems of scale generation and overlarge water heater volume caused by overhigh water temperature of the water storage tank due to the need of the water storage type water heater can be effectively avoided.
In the pause process of using hot water intermittently by a user, because the heat preservation type water storage tank needs to supplement tap water with lower temperature constantly, in order to avoid the water temperature in the heat preservation type water storage tank from dropping, the four-way piece 5 can be utilized to stop the water inlet of the tap water inlet end 1 of the water heater and heat the water in the heat preservation type water storage tank within the time of using the hot water intermittently notified by the user through the water outlet end of the heat preservation type water storage tank, the first three-way piece 7 (an electronic proportional valve or a three-way connecting piece), the water inlet end and the water outlet end of the water heater, the normally closed electromagnetic valve 3, the four-way piece 5, the water pump 4 and the water inlet end path of the heat preservation type water storage tank, so that the water temperature at the water inlet end of the water heater can be supplemented when the user continues to use the water, and, the water temperature and the water flow at the water outlet of the water heater are insufficient, and the load of a power supply circuit is overlarge.
Referring to fig. 1 or fig. 2, in an embodiment of the present invention, in order to realize the water temperature compensation function of the heat preservation type water storage tank, when the water temperature of the heat preservation type water storage tank needs to be compensated by heating the instant electric water heater, the normally closed electromagnetic valve 3 is powered on and opened, so that the hot water is returned to the heat preservation type water storage tank from the water outlet end of the instant electric water heater, i.e., the normally closed electromagnetic valve 3, i.e., the four-way member 5, i.e., the water pump, i.e., the water inlet end of the heat preservation type water storage tank, and finally the hot water.
On the basis of the above embodiment, as a preferred implementation manner, as shown in fig. 1, the water heater is an instant electric water heater, the first three-way member 7 is an electronic proportional valve, the water pump is a circulating water pump, and the electronic proportional valve is electrically connected to the controller. The circuit structure of the water heater system of this embodiment is shown in fig. 5, the controller is a central processing unit, and is configured to control the electronic proportional valve, the circulating water pump, and other electrical appliances, and can process the water flow signals and the temperature signals collected by the first flowmeter 9, the second flowmeter 91, the first thermocouple 10, the second thermocouple 101, and the third thermocouple 102, and execute corresponding operating states.
The working principle and the technical effect of the embodiment are as follows:
working state one (heating mode of water heater):
as shown in fig. 3a, when the controller detects that the water flow at the water inlet end of the instantaneous electric water heater is the maximum water flow through the first flowmeter 9, and detects that the maximum heating temperature rise is greater than or equal to the temperature difference between the set maximum outlet water temperature and the inlet water temperature through the first thermocouple 10 and the second thermocouple 101, the first end and the second end of the four-way member 5 are opened, the first end and the second end of the electronic proportional valve are opened, the instantaneous electric water heater is started to enter the heating working state, so that the waterway channel is switched to:
a tap water inlet 6, a tap water inlet end 1 of a water heater, a four-way piece 5, an electronic proportional valve, a water inlet end of an instant electric water heater, a water outlet end of the instant electric water heater and a hot water outlet end 2 of the water heater;
at the moment, the power supply of the circulating water pump is turned off, and the water inlet of the electronic proportional valve connected with the end of the heat preservation type water storage tank is completely cut off from the water outlet of the electronic proportional valve, so that the heat preservation type water storage tank is in a stop use state.
Therefore, under the condition that sufficient water flow and standard hot water output temperature can be ensured, the heat-preservation water storage tank does not need to be started, the instant electric water heater is used for supplying hot water for users, the intelligent control of a water heater system is realized, and meanwhile, the electric energy is saved.
The second working state (water heating mode of the heat preservation type water storage tank):
as shown in fig. 3b, when the controller detects that the water flow at the water inlet end of the instant electric water heater is the maximum water flow through the first flowmeter 9, and detects that the maximum heating temperature rise is smaller than the water temperature difference obtained by subtracting the inlet water temperature from the set maximum outlet water temperature through the first thermocouple 10 and the second thermocouple 101, the controller starts the circulating water pump, adjusts the electronic proportional valve, and starts the instant electric water heater to enter the heating working state so as to switch the water channel to:
the water outlet end of the instant electric water heater, the hot water outlet end 2 of the water heater, the normally closed electromagnetic valve 3, the four-way piece 5, the circulating water pump, the water inlet end of the heat preservation type water storage tank, the water outlet end of the heat preservation type water storage tank, the third end and the second end of the electronic proportional valve, and the water inlet end of the instant electric water heater.
In the process, hot water of the instant electric water heater flows into the heat preservation type water storage tank through the normally closed electromagnetic valve 3 and the four-way piece 5, so that the hot water of the instant electric water heater and cold water of the heat preservation type water storage tank are continuously mixed, the water temperature of the heat preservation type water storage tank gradually rises in the past, and when the water temperature in the heat preservation type water storage tank rises to a set value, the circulating water pump is controlled to stop working.
Therefore, the instant electric water heater, the normally closed electromagnetic valve 3 and the heat preservation type water storage tank form a circulation loop, so that the water temperature in the heat preservation type water storage tank rises, the warm water passing through the heat preservation type water storage tank and the cold water at the tap water inlet end 1 of the water heater are premixed under the low-temperature environment and then enter the instant electric water heater for heating, the heating efficiency and the heating temperature can be greatly improved, the sufficient water supply is ensured, the defect of the existing instant electric water heater is overcome, the water using requirement under the low-temperature environment is met, and the use experience of a user is improved.
The working state III (the water temperature compensation water outlet mode of the heat preservation type water storage tank):
as shown in fig. 3c, when it is detected that the temperature of the tap water is lower than the working temperature rise limit of the instant electric water heater, when a user uses hot water, the circulating water pump is started to work, the electronic proportional valve actuator drives the corresponding valve core to adjust the corresponding proportion of 2 water inlets (the tap water inlet end 1 of the water heater and the water outlet end of the thermal insulation type water storage tank), so that the temperature of the water outlet of the electronic proportional valve reaches or exceeds the minimum limit water temperature of the water inlet end of the water heater, and the temperature of the water outlet end of the instant electric water heater reaches the corresponding set temperature through the working heating of the instant electric water heater, so that the water channel is switched to:
path one: the tap water inlet end 1 of the water heater, the first end and the second end of the four-way piece 5, the first end and the second end of the electronic proportional valve and the instant electric water heater are connected with the water inlet end 1 of the water heater;
and a second route: the water outlet end of the heat preservation type water storage tank, the third end and the second end of the electronic proportional valve, and the instant electric water heater.
The specific structure of the electronic proportional valve is shown in fig. 7, and the electronic proportional valve comprises a valve body 12, a cold and hot water mixing cavity 13, a water mixing valve core 14 and a thermocouple 15, wherein the cold and hot water mixing cavity 13, the water mixing valve core 14 and the thermocouple 15 are installed in the valve body 12, the water mixing valve core 14 is driven by an execution motor mechanism 16, the execution motor mechanism is controlled by a control panel 17, and the valve body 12 is provided with a hot water or cold water inlet 18, a cold water or hot water inlet 19 and a mixed water outlet 20 which are communicated with the cold and hot.
Therefore, in a low-temperature environment, the running water with lower temperature and the water with higher temperature in the heat-preservation water storage tank are mixed according to a set proportion by the electronic proportional valve, and then the mixed water enters the instant electric water heater to be heated, so that the heating efficiency and the heating temperature can be greatly improved, the sufficient water supply can be ensured, the defects of the existing instant electric water heater can be overcome, the water using requirement in the low-temperature environment can be met, and the use experience of a user can be improved.
Working state four (temperature compensation of the heat preservation type water storage tank is carried out through a cold/hot water pipe loop externally connected with the water heater):
as shown in fig. 3d, the water heater system further comprises a second one-way valve 81; the hot water outlet end 2 of the water heater is connected to the water inlet of the second one-way valve 81 through the hot water using end, the water outlet of the second one-way valve 81 is connected with the tap water inlet 6, and the tap water inlet 6 is connected to the tap water inlet end 1 of the water heater.
The water temperature compensation path is as follows:
the water outlet end of the instant electric water heater, the hot water outlet end 2 of the water heater, the hot water using end, the second one-way valve 81, the tap water inlet 6, the tap water inlet end 1 of the water heater, the first end and the third end of the four-way piece 5, the circulating water pump and the water inlet end of the heat preservation type water storage tank.
At this time, the normally closed electromagnetic valve 3 is controlled to be closed.
Working state five (temperature compensation of the heat preservation type water storage tank is carried out through a cold/hot water pipe loop externally connected with the water heater):
as shown in fig. 3e, the water heater system further comprises a second tee, a third check valve 83; the hot water outlet end 2 of the water heater is connected to the water inlet of the third one-way valve 83 through the hot water using end, the water outlet of the third one-way valve 83 is connected to the first end of the second three-way member, the second end of the second three-way member is connected to the tap water inlet end 1 of the water heater, and the third end of the second three-way member is connected to the tap water inlet 6. The tee fitting is a three-way pipe or a three-way valve.
The water temperature compensation path is as follows:
the water outlet end of the instant electric water heater, the hot water outlet end 2 of the water heater, the hot water using end, the hot water return pipe, the third one-way valve 83, the first end and the second end of the second three-way component, the tap water inlet end 1 of the water heater, the first end and the third end of the four-way component 5, the circulating water pump and the water inlet end of the heat preservation type water storage tank.
In conclusion of the five working states, the problems of scale generation and overlarge water heater volume caused by the fact that the water temperature of the heat-preservation type water storage tank needs to be heated too high in the water heater system can be solved, and the defects that when the water temperature of tap water is too low, the water temperature and the water flow at the water outlet end are insufficient, and the load of a power supply circuit is overlarge can be overcome.
In another preferred embodiment, as shown in fig. 2, the water heater is an instant electric water heater, and includes a first check valve 8, a second end of the four-way member 5 is connected to a water inlet end of the first check valve 8, and a water outlet end of the first check valve 8 is connected to a first end of the first three-way member 7; the first three-way piece 7 is a three-way connecting piece or a three-way pipe, the water pump is a circulating water pump with a speed regulation function, and the three-way connecting piece is electrically connected with the controller. The circuit structure of the water heater system of this embodiment is shown in fig. 5, and the controller is a central processing unit, and is configured to control the three-way connection, the circulating water pump with a speed regulation function, and other electrical appliances, and can process the water flow signals and the temperature signals collected by the first flowmeter 9, the second flowmeter 91, the first thermocouple 10, the second thermocouple 101, and the third thermocouple 102, and execute corresponding operating states.
The working principle and the technical effect of the embodiment are as follows:
working state one (heating mode of water heater):
as shown in fig. 4a, when the controller detects that the water flow at the water inlet end of the instantaneous electric water heater is the maximum water flow through the first flowmeter 9, and detects that the maximum heating temperature rise is greater than or equal to the temperature difference between the set maximum outlet water temperature and the inlet water temperature through the first thermocouple 10 and the second thermocouple 101, the first end and the second end of the four-way member 5 are opened, the first end and the second end of the three-way member are opened, the instantaneous electric water heater is started to enter the heating working state, so that the waterway channel is switched to:
a tap water inlet 6, a tap water inlet end 1 of a water heater, a four-way piece 5, a first one-way valve 8, a three-way connecting piece, a water inlet end of an instant electric water heater, a water outlet end of the instant electric water heater and a hot water outlet end 2 of the water heater;
at the moment, the power supply of the circulating water pump with the speed regulation function is turned off, and the water inlet of the three-way connecting piece connected with the end of the heat preservation type water storage tank is completely cut off from the water outlet of the three-way connecting piece, so that the heat preservation type water storage tank is in a stop use state.
Therefore, under the condition that sufficient water flow and standard hot water output temperature can be ensured, the heat-preservation water storage tank does not need to be started, the instant electric water heater is used for supplying hot water for users, the intelligent control of a water heater system is realized, and meanwhile, the electric energy is saved.
The second working state (water heating mode of the heat preservation type water storage tank):
as shown in fig. 4b, when the controller detects that the water flow at the water inlet end of the instant electric water heater is the maximum water flow through the first flowmeter 9, and detects that the maximum heating temperature rise is smaller than the water temperature difference obtained by subtracting the inlet water temperature from the set maximum outlet water temperature through the first thermocouple 10 and the second thermocouple 101, the controller starts the circulating water pump with the speed regulation function when the water pump is not used by the user, regulates the three-way connection member, and starts the instant electric water heater to enter the heating working state, so that the water channel is switched to:
the water outlet end of the instant electric water heater, the hot water outlet end 2 of the water heater, the normally closed electromagnetic valve 3, the four-way piece 5, the circulating water pump with the speed regulation function, the water inlet end of the heat preservation type water storage tank, the water outlet end of the heat preservation type water storage tank, the third end and the second end of the three-way connecting piece and the water inlet end of the instant electric water heater.
In the process, hot water of the instant electric water heater flows into the heat preservation type water storage tank through the normally closed electromagnetic valve 3 and the four-way piece 5, so that the hot water of the instant electric water heater and cold water of the heat preservation type water storage tank are continuously mixed, the water temperature of the heat preservation type water storage tank gradually rises in the past, and when the water temperature in the heat preservation type water storage tank rises to a set value, the circulating water pump with the speed regulation function is controlled to stop working.
Therefore, the instant electric water heater, the normally closed electromagnetic valve 3 and the heat preservation type water storage tank form a circulation loop, so that the water temperature in the heat preservation type water storage tank rises, the warm water passing through the heat preservation type water storage tank and the cold water at the tap water inlet end 1 of the water heater are premixed under the low-temperature environment and then enter the instant electric water heater for heating, the heating efficiency and the heating temperature can be greatly improved, the sufficient water supply is ensured, the defect of the existing instant electric water heater is overcome, the water using requirement under the low-temperature environment is met, and the use experience of a user is improved.
The working state III (the water temperature compensation water outlet mode of the heat preservation type water storage tank):
as shown in fig. 4c, when it is detected that the temperature of the tap water is lower than the working temperature rise limit of the instant electric water heater, when a user uses hot water, the circulating water pump with the speed regulation function is started to work, the three-way connecting piece actuating mechanism drives the corresponding valve core, and the corresponding proportion of 2 water inlets (the tap water inlet end 1 of the water heater and the water outlet end of the heat preservation type water storage tank) is adjusted, so that the water temperature at the water outlet of the three-way connecting piece reaches or exceeds the minimum limit water temperature of the water inlet end of the water heater, and the water temperature at the water outlet end of the instant electric water heater reaches the corresponding set temperature through the working heating of the instant:
path one: the water heater comprises a water heater tap water inlet end 1, a first end and a second end of a four-way piece 5, a first one-way valve 8, a first end and a second end of a three-way connecting piece and an instant electric water heater;
and a second route: the water outlet end of the heat preservation type water storage tank, the third end and the second end of the three-way connecting piece, and the instant electric water heater.
Therefore, in a low-temperature environment, the first one-way valve 8 and the three-way connecting piece are used for mixing the running water with a lower temperature and the water with a higher temperature in the heat preservation type water storage tank according to a set proportion, and then the mixed water enters the instant electric water heater for heating, so that the heating efficiency and the heating temperature can be greatly improved, sufficient water supply can be ensured, the defects of the existing instant electric water heater can be overcome, the water consumption requirement in the low-temperature environment can be met, and the use experience of a user can be improved.
Working state four (temperature compensation of the heat preservation type water storage tank is carried out through a cold/hot water pipe loop externally connected with the water heater):
as shown in fig. 4d, the water heater system further comprises a second one-way valve 81; the hot water outlet end 2 of the water heater is connected to the water inlet of the second one-way valve 81 through the hot water using end, the water outlet of the second one-way valve 81 is connected with the tap water inlet 6, and the tap water inlet 6 is connected to the tap water inlet end 1 of the water heater.
The water temperature compensation path is as follows:
the water outlet end of the instant electric water heater, the hot water outlet end 2 of the water heater, the hot water using end, the second one-way valve 81, the tap water inlet 6, the tap water inlet end 1 of the water heater, the first end and the third end of the four-way piece 5, the circulating water pump with the speed regulation function and the water inlet end of the heat preservation type water storage tank.
At this time, the normally closed electromagnetic valve 3 is controlled to be closed.
Working state five (temperature compensation of the heat preservation type water storage tank is carried out through a cold/hot water pipe loop externally connected with the water heater):
as shown in fig. 4e, the water heater system further comprises a second tee, a third check valve 83; the hot water outlet end 2 of the water heater is connected to the water inlet of the third one-way valve 83 through the hot water using end, the water outlet of the third one-way valve 83 is connected to the first end of the second three-way member, the second end of the second three-way member is connected to the tap water inlet end 1 of the water heater, and the third end of the second three-way member is connected to the tap water inlet 6. The second tee fitting is a three-way pipe or a three-way valve.
The water temperature compensation path is as follows:
the water outlet end of the instant electric water heater, the hot water outlet end 2 of the water heater, the hot water using end, the hot water return pipe, the third one-way valve 83, the first end and the second end of the second three-way component, the tap water inlet end 1 of the water heater, the first end and the third end of the four-way component 5, the circulating water pump with the speed regulation function and the water inlet end of the heat preservation type water storage tank.
In conclusion of the five working states, the problems of scale generation and overlarge water heater volume caused by the fact that the water temperature of the heat-preservation type water storage tank needs to be heated too high in the water heater system can be solved, and the defects that when the water temperature of tap water is too low, the water temperature and the water flow at the water outlet end are insufficient, and the load of a power supply circuit is overlarge can be overcome.
Compared with the prior art, the water heater system of the utility model, combined with the heat preservation type water storage tank and the normally closed solenoid valve, prolongs the heating working time length of the instant electric water heater, reduces the maximum power consumption of the instant electric water heater in a short time period as much as possible, and avoids the risk potential caused by the conventional household circuit; meanwhile, the problems that the output water temperature of hot water does not reach the standard and the water flow is too small under the low-temperature condition are solved, the water temperature is controlled by combining water path switching, the problem of scale generation of the water storage type water heater is solved, and the water quality is favorably improved.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. A water heater system is characterized by comprising a water heater, a heat preservation type water storage tank, a controller, a tap water inlet end of the water heater, a hot water outlet end of the water heater, a normally closed electromagnetic valve, a four-way piece, a first three-way piece and a water pump, wherein the controller is connected with the water inlet end of the tap water of the water heater;
thermocouples for detecting water temperature are arranged in the water heater and the heat preservation type water storage tank, and the controller is electrically connected with the water heater, the heat preservation type water storage tank, the thermocouples, the normally closed electromagnetic valve and the water pump respectively;
the water heater is characterized in that a tap water inlet end of the water heater is connected with a first end of the four-way piece, a second end of the four-way piece is connected with a first end of the first three-way piece, a second end of the first three-way piece is connected with a water inlet end of the water heater, and a water outlet end of the water heater is connected with a hot water outlet end of the water heater;
the third end of the four-way piece is connected with the water inlet end of the heat preservation type water storage tank through the water pump, and the water outlet end of the heat preservation type water storage tank is connected with the third end of the first three-way piece;
and the water outlet end of the water heater is connected with the fourth end of the four-way piece through the normally closed electromagnetic valve.
2. The water heater system as recited in claim 1 wherein the first tee member is an electronic proportional valve and the water pump is a circulating water pump, the electronic proportional valve being electrically connected to the controller.
3. The water heater system as recited in claim 1 further comprising a first one-way valve, wherein the second end of the four-way member is connected to the water inlet end of the first one-way valve, and wherein the water outlet end of the first one-way valve is connected to the first end of the first three-way member;
the first three-way piece is a three-way connecting piece, and the water pump is a circulating water pump with a speed regulating function.
4. The water heater system of claim 1, wherein the thermocouples comprise a first thermocouple, a second thermocouple, a third thermocouple electrically connected to the controller, respectively;
the first thermocouple is installed in a water inlet end pipeline of the water heater, the second thermocouple is installed in a water outlet end pipeline of the water heater, and the third thermocouple is installed in the heat-preservation water storage tank.
5. The water heater system as recited in claim 1 further comprising first and second flow meters respectively electrically connected to the controller;
the first flow meter is installed in a connecting pipeline between a tap water inlet end of the water heater and the four-way piece, and the second flow meter is installed in a connecting pipeline between a water outlet end of the water heater and a hot water outlet end.
6. The water heater system as recited in claim 1 wherein the four-way member is a four-way valve or a four-way tube.
7. The water heater system of claim 1, wherein the water heater is an electric water heater or an instant electric water heater.
8. The water heater system as recited in any one of claims 1 to 7, further comprising a second one-way valve;
the hot water outlet end of the water heater is connected to the water inlet of the second one-way valve through the hot water using end, the water outlet of the second one-way valve is connected with the tap water inlet, and the tap water inlet is connected to the tap water inlet end of the water heater.
9. The water heater system as recited in any one of claims 1 to 7, further comprising a second tee member, a third one-way valve;
the hot water outlet end of the water heater is connected to the water inlet of the third one-way valve through the hot water using end, the water outlet of the third one-way valve is connected to the first end of the second three-way piece, the second end of the second three-way piece is connected to the tap water inlet end of the water heater, and the third end of the second three-way piece is connected to the tap water inlet.
10. The water heater system of claim 9, wherein the second tee is a tee or a three-way valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921346617.3U CN210425576U (en) | 2019-08-16 | 2019-08-16 | Water heater system |
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| CN201921346617.3U CN210425576U (en) | 2019-08-16 | 2019-08-16 | Water heater system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440443A (en) * | 2019-08-16 | 2019-11-12 | 中山市乐喜电子科技有限公司 | A kind of water-heater system |
| CN115072825A (en) * | 2022-06-16 | 2022-09-20 | 沈阳化工大学 | Water treatment device adopting crystal water for purification |
-
2019
- 2019-08-16 CN CN201921346617.3U patent/CN210425576U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440443A (en) * | 2019-08-16 | 2019-11-12 | 中山市乐喜电子科技有限公司 | A kind of water-heater system |
| CN115072825A (en) * | 2022-06-16 | 2022-09-20 | 沈阳化工大学 | Water treatment device adopting crystal water for purification |
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