CN211625721U - Water circulation system for water heater - Google Patents
Water circulation system for water heater Download PDFInfo
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- CN211625721U CN211625721U CN202020217476.1U CN202020217476U CN211625721U CN 211625721 U CN211625721 U CN 211625721U CN 202020217476 U CN202020217476 U CN 202020217476U CN 211625721 U CN211625721 U CN 211625721U
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Abstract
The utility model discloses a water circulating system for water heater, water circulating system includes: a cold water pipeline, one end of which is connected with the water inlet of the water heater; one end of the hot water pipeline is connected with a water outlet of the water heater; and a first water outlet joint configured to be connected to the cold water line and the hot water line, wherein the water circulation system further includes a circulation water pump in communication with the cold water line and a solenoid valve connected between the cold water line and the hot water line in close proximity to the first water outlet joint. The water circulation system can realize the 'zero cold water' function when a user needs to use hot water, and can also ensure cold water supply when the user needs to use cold water.
Description
Technical Field
The utility model relates to a hot water supply system field specifically relates to a water circulating system for water heater.
Background
A conventional configuration of a domestic hot water supply system is shown in fig. 1, and includes a water heater 2, a cold water line 3, a hot water line 4, and a plurality of water outlets connected to the hot water line 4 and the cold water line 3, and the water outlets may be used to connect water using devices such as a faucet or a shower head. Wherein a long hot water line 4 is present from the water heater 2 to the water outlet connection, in particular the first water outlet connection 5 which is the furthest away from the water heater. If the hot water supply system is not used for a long time, the temperature of the hot water in the hot water line 4 will drop and eventually become cold water. Therefore, the user can obtain hot water only by draining cold water from the hot water line 4 first. In the past, huge waste of water resources is caused. One prior solution to the above problem is shown in fig. 1, that is, a one-way valve is installed at the first water outlet joint 5 farthest from the water heater 2, and the one-way valve enables the cold water pipeline 3 and the hot water pipeline 4 to be communicated in one way, and a circulating water pump 6 is installed in the cold water pipeline 3, so that the following circulating loop is formed: the hot water pipeline 4, the one-way valve, the cold water pipeline 3, the circulating water pump 6, the water heater 2 and the hot water pipeline 4, the cold water in the hot water pipeline 4 enters the water heater 2 to be heated through the circulating loop, and the hot water flowing out of the water heater 2 refills the hot water pipeline 4. Therefore, the user can obtain hot water immediately after turning on the water using device, namely, the 'zero cold water' function is realized.
However, this solution will bring new problems. Taking the second water outlet joint 10 shown in fig. 2 as an example, when a user needs to use cold water at the place (for example, in hot summer), the cold water line 3 and the hot water line 4 are always in a communication state due to the above-mentioned one-way valve, so that the water flowing out of the second water outlet joint 10 will be a mixture of the hot water flow shown by the arrow (a) and the cold water flow shown by the arrow (b). Therefore, the user at the second water outlet joint 10 can only obtain warm water, but can not obtain cold water, which not only can not meet the use requirement, but also causes the waste of energy. A similar problem exists in the first outlet fitting 5 in fig. 2.
Therefore, there is a need to develop a water circulation system of a water heater that can realize the above-mentioned "zero cold water" function when a user needs to use hot water, and can secure a supply of cold water when the user needs to use cold water.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a water circulating system of modified water heater, and it can enough realize "zero cold water" function when the user needs to use hot water, can guarantee the cold water supply when the user needs to use cold water again, still has advantages such as simple structure, reliability height concurrently.
The utility model discloses a water circulating system for water heater, water circulating system includes: a cold water pipeline, one end of which is connected with the water inlet of the water heater; one end of the hot water pipeline is connected with a water outlet of the water heater; and a first water outlet joint configured to be connected to the cold water line and the hot water line, wherein the water circulation system further includes a circulation water pump in communication with the cold water line and a solenoid valve connected between the cold water line and the hot water line in close proximity to the first water outlet joint.
Preferably, the water circulation system further comprises a controller configured to perform a switching operation of the solenoid valve.
Preferably, the cold water line is connected to a cold water inlet line therebetween through a three-way joint.
Preferably, the circulation water pump is an electromagnetic water pump, and the controller is further configured to perform a switching operation of the electromagnetic water pump and to control an operation of the electromagnetic water pump.
Preferably, the electromagnetic valve and/or the electromagnetic water pump are connected to the controller by a wired or wireless manner.
Preferably, the controller is implemented as a microchip and includes a timer.
Preferably, the water circulation system further comprises at least a first temperature sensor and a second temperature sensor, the first temperature sensor is disposed in the hot water line proximate to the water outlet of the water heater, the second temperature sensor is disposed in the cold water line proximate to the water inlet of the water heater, and the first temperature sensor and the second temperature sensor are in communicative connection with the controller.
Preferably, the water circulation system further comprises one or more water outlet connectors between the first water outlet connector and the water heater, the one or more water outlet connectors being connected in parallel with the first water outlet connector between the cold water line and the hot water line.
Preferably, the water circulation system further comprises a solenoid valve provided at the one or more water outlet connections.
Preferably, when the solenoid valve is a one-way solenoid valve, the installation direction thereof coincides with a direction from the hot water line to the cold water line.
The beneficial effects of the utility model reside in that: compared with the prior art, the utility model discloses a water circulating system is in the water outlet joint department installation solenoid valve rather than the check valve farthest from the water heater to the setting is used for carrying out the switch operation's of solenoid valve controller, can realize "zero cold water" function when the user needs to use hot water, can guarantee the supply of cold water when the user needs to use cold water again.
Drawings
The accompanying drawings are provided to assist the reader in a more thorough understanding of the invention. Throughout the specification, like reference numerals designate like parts, in which:
FIG. 1 is a schematic diagram of a water circulation system of a prior art water heater for achieving a "zero cold water" function;
FIG. 2 schematically illustrates a problem with the water circulation system shown in FIG. 1; and
fig. 3 is a schematic view of a water circulation system of a water heater according to an embodiment of the present invention.
Reference numbers in the figures: 1. a hot water supply system; 2. a water heater; 3. a cold water line; 4. a hot water line; 5. a first water outlet joint; 6. a water circulating pump; 7. an electromagnetic valve; 8. a cold water inlet line; 9. a controller; 10. and a second water outlet joint.
Detailed Description
The present invention will be described below with reference to specific embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration only. Accordingly, the following examples are illustrative only, and the scope of the invention is to be limited only by the following claims.
Referring to fig. 3, a hot water supply system 1 according to an embodiment of the present invention is shown, the hot water supply system 1 comprising a water heater 2 and a water circulation system thereof. The water heater 2 is configured to heat cold water entering therein to a predetermined temperature. The water circulation system includes: a cold water pipeline 3, one end of which is connected with the water inlet of the water heater 2; one end of the hot water pipeline 4 is connected with the water outlet of the water heater 2; and a first water outlet joint 5, wherein the first water outlet joint 5 is connected with the cold water pipeline 3 and the hot water pipeline 4 to supply water with certain temperature to users according to requirements, and the first water outlet joint 5 is preferably the water outlet joint farthest away from the water heater 2. The water circulation system further comprises a water circulation pump 6 and an electromagnetic valve 7, wherein the water circulation pump 6 is communicated with the cold water pipeline 3, and the electromagnetic valve 7 is connected between the cold water pipeline 3 and the hot water pipeline 4 in a manner of abutting against the first water outlet joint 5.
The solenoid valve 7 may comprise a one-way solenoid valve or a two-way solenoid valve. When the solenoid valve 7 is a one-way solenoid valve, its installation direction is identical to the direction from the hot water line 4 to the cold water line 3.
According to an alternative embodiment of the invention, the water circulation system further comprises a controller 9, the controller 9 being adapted to control the operation of the various components of the water circulation system. In particular, the controller 9 is configured to perform a switching operation of the solenoid valve 7.
The cold water line 3 is connected therebetween by a three-way joint to a cold water inlet line 8, the cold water inlet line 8 being used for supplying cold water from a municipal water supply system.
The circulation water pump 6 may be installed in the cold water line 3 or built in the water heater 2.
The circulating water pump 6 may be an electromagnetic water pump. In this case, the controller 9 is also configured to perform a switching operation of the electromagnetic water pump. Furthermore, the controller may be further configured to control the operation of the electromagnetic water pump, such as controlling the speed, pressure, etc. of the electromagnetic water pump.
The solenoid valve 7 and/or the circulating water pump 6 may be connected to the controller 9 by wire or wirelessly. The wireless means includes bluetooth, WiFi, and wireless mesh networks using ZIGBEE wireless communication protocols. When the wireless connection mode is adopted, the electromagnetic valve 7 and the circulating water pump 6 can be a wireless electromagnetic valve and a wireless electromagnetic water pump respectively.
The controller 9 may be integrated in the water heater 2 or installed at any suitable location in the environment of use of the hot water supply system 1.
The controller 9 may be implemented as a microcontroller including, but not limited to, a microchip configured to execute various operating logic. The operating logic may be a series of instructions, code, electronic files, or commands programmed using a general-purpose or special-purpose programming language that are pre-stored on the microchip and that define various control, management, and/or regulatory functions. In one embodiment of the present invention, the microchip is configured to perform the switching operation of the solenoid valve 7 according to the user's preference for use. For example, when a user is accustomed to using hot water at a fixed time of day, the operating logic in the microchip may be generated based on the user's lifestyle, so that the microchip opens and closes the solenoid valve 7 at the corresponding time. In another alternative embodiment, the controller 9 may further comprise a timer, wherein the controller 9 is configured to open and close the solenoid valve 7 at predetermined time intervals.
In another alternative embodiment of the present invention, the water circulation system may further comprise a temperature sensor. The temperature sensors may include at least a first temperature sensor and a second temperature sensor. The first temperature sensor may be arranged in the hot water line 4 next to the first water outlet connection 5. Preferably, said first temperature sensor is arranged in said hot water line 4, in proximity to the outlet of said water heater 2. The second temperature sensor may be arranged in the cold water line 3 next to the water inlet of the water heater 2. The first temperature sensor and the second temperature sensor are used for measuring the water temperature at the positions where the first temperature sensor and the second temperature sensor are located, and transmitting the measured water temperature data to the controller 9. When the water temperature measured by the first temperature sensor is lower than a first temperature threshold value prestored in the controller 9, the controller 9 can send a signal to open the electromagnetic valve 7; when the temperature of the water measured by the second temperature sensor exceeds a second temperature threshold value pre-stored in the controller 9, the controller 9 may send a signal to close the solenoid valve 7. Wherein the first temperature threshold is lower than the second temperature threshold. Alternatively, the controller 9 may perform the closing operation of the electromagnetic valve 7 only according to the water temperature measured by the second temperature sensor.
The operation of the water circulation system of the present invention is schematically described below.
The controller 9 sends a signal to open the solenoid valve 7 while the circulating water pump 6 is opened, thereby forming a circulation loop as follows: the hot water pipeline 4, the electromagnetic valve 7, the cold water pipeline 3, the circulating water pump 6, the water heater 2 and the hot water pipeline 4, the cold water in the hot water pipeline 4 enters the water heater 2 to be heated through the circulating loop, and the hot water flowing out of the water heater 2 refills the hot water pipeline 4. Thus, when the user opens the water consuming device at the first water outlet 5 or other water outlet, hot water is immediately available.
The controller 9 sends a signal to close the solenoid valve 7 and at the same time the circulation water pump 6 is also closed, thus cutting off the circulation circuit. Thereby, the user can obtain cold water at the first water outlet 5 or other water outlet, instead of warm water in which hot water and cold water are mixed.
Based on above-mentioned working process can know, according to the utility model discloses a water circulating system of an embodiment adopts the solenoid valve to replace the check valve, not only can realize "zero cold water" function when the user needs to use hot water, can also guarantee the supply of cold water when the user needs to use cold water.
In the embodiment shown in fig. 3, the water circulation system further comprises a second water outlet connection 10 between the first water outlet connection 5 and the water heater 2, i.e. the first water outlet connection 5 is the water outlet connection furthest from the water heater 2. The second water outlet joint 10 and the first water outlet joint 5 are connected in parallel between the cold water pipeline 3 and the hot water pipeline 4. However, the present invention is not limited thereto, and the water circulation system may include any suitable number of water outlet joints connected in parallel between the cold water line 3 and the hot water line 4 to satisfy the water demand of the user at various points.
Under the condition that the water circulation system comprises a plurality of water outlet connectors, an electromagnetic valve can be arranged at each water outlet connector, so that the water outlet connectors can be independently controlled.
The hot water supply system described in the present invention can be applied to various types of water heaters. For example, the water heater 2 may be a gas water heater, an electric water heater, a magnetic water heater, an air energy water heater, or any other suitable type of water heater.
Although specific embodiments of the present invention have been disclosed, those skilled in the art will appreciate that various modifications, substitutions and changes may be made without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention is not limited to the specific embodiments described above, but is only limited by the appended claims.
Claims (10)
1. A water circulation system for a water heater (2), the water circulation system comprising:
a cold water pipeline (3) with one end connected with the water inlet of the water heater (2);
one end of the hot water pipeline (4) is connected with a water outlet of the water heater (2); and
a first water outlet connection (5), the first water outlet connection (5) being configured to be connected with the cold water line (3) and the hot water line (4),
the water circulation system is characterized by further comprising a water circulation pump (6) and an electromagnetic valve (7), wherein the water circulation pump (6) is communicated with the cold water pipeline (3), and the electromagnetic valve (7) is connected between the cold water pipeline (3) and the hot water pipeline (4) in a manner of abutting against the first water outlet connector (5).
2. The water circulation system according to claim 1, further comprising a controller (9), the controller (9) being configured for performing a switching operation of the solenoid valve (7).
3. A water circulation system according to claim 1, characterized in that the cold water line (3) is connected therebetween by a three-way connection to a cold water inlet line (8).
4. A water circulation system according to claim 2, wherein the circulating water pump (6) is an electromagnetic water pump, and the controller (9) is further configured for performing a switching operation of the electromagnetic water pump and for controlling an operation of the electromagnetic water pump.
5. A water circulation system according to claim 4, characterized in that the electromagnetic valve (7) and/or the electromagnetic water pump are connected to the controller (9) by wired or wireless means.
6. A water circulation system according to claim 2, characterized in that the controller (9) is realized as a microchip and comprises a timer.
7. The water circulation system according to claim 2, characterized in that it further comprises at least a first temperature sensor and a second temperature sensor, said first temperature sensor being arranged in said hot water line (4) in proximity to the water outlet of said water heater (2), said second temperature sensor being arranged in said cold water line (3) in proximity to the water inlet of said water heater (2), and said first and second temperature sensors being in communication connection with said controller (9).
8. The water circulation system according to claim 1, characterized in that it further comprises one or more water outlet connections between the first water outlet connection (5) and the water heater (2), connected in parallel with the first water outlet connection (5) between the cold water line (3) and the hot water line (4).
9. The water circulation system of claim 8, further comprising a solenoid valve disposed at the one or more water outlet connections.
10. A water circulation system according to claim 1, characterized in that when the solenoid valve (7) is a one-way solenoid valve, it is installed in the same direction as the direction from the hot water line (4) to the cold water line (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020217476.1U CN211625721U (en) | 2020-02-27 | 2020-02-27 | Water circulation system for water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020217476.1U CN211625721U (en) | 2020-02-27 | 2020-02-27 | Water circulation system for water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211625721U true CN211625721U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020217476.1U Active CN211625721U (en) | 2020-02-27 | 2020-02-27 | Water circulation system for water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211625721U (en) |
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2020
- 2020-02-27 CN CN202020217476.1U patent/CN211625721U/en active Active
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