CN220489421U - Automatic water draining device of water heater - Google Patents
Automatic water draining device of water heater Download PDFInfo
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- CN220489421U CN220489421U CN202320902113.5U CN202320902113U CN220489421U CN 220489421 U CN220489421 U CN 220489421U CN 202320902113 U CN202320902113 U CN 202320902113U CN 220489421 U CN220489421 U CN 220489421U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 233
- 238000007710 freezing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model provides an automatic drainage device of water heater, including heat exchanger, water flow sensor, electronic three-way valve, stop valve, controller and temperature sensor, water flow sensor sets up on the cold inlet tube of water heater, cold inlet tube connection electronic three-way valve, heat exchanger is connected respectively to electronic three-way valve, the drain pipe of water heater, temperature sensor sets up on the hot outlet pipe of water heater, be connected with the connection branch pipe between cold inlet tube and the hot outlet pipe, the stop valve sets up on the connection branch pipe, the controller is controlled respectively and is connected water flow sensor, electronic three-way valve, stop valve and temperature sensor, electronic three-way valve includes the valve body and sets up the motor on the valve body. The automatic drainage device can realize automatic drainage of water in the heat exchanger of the water heater without manual drainage, and when the water heater is reused, the electric three-way valve of the water heater can be automatically reset and can be automatically used normally, so that the problem of complicated manual drainage or automatic drainage manual reset operation of the traditional water heater can be solved.
Description
Technical Field
The utility model relates to a water heater, in particular to an automatic water draining device of the water heater.
Background
In northern areas, after the existing water heater is used in winter, in order to prevent water in the water tank from being frozen due to cold weather, the water in the water tank needs to be manually closed by a water inlet valve, and the water outlet valve is manually unscrewed to drain water; if the water is not discharged, the water in the water tank is frozen, and the water pipe of the water tank is possibly frozen to crack, or the next use is affected; however, the water heater is required to be drained after each use, so that the operation is complicated, and the water heater is required to be manually closed after the use, and the drain valve is manually opened to drain water after the use is finished; in order to solve the above problems, chinese patent document CN103322684a discloses a gas water heater and a drainage anti-freezing device thereof in 2013, 9 and 25 days. The water draining and antifreezing device comprises an inlet water draining assembly, an outlet water draining assembly, a temperature sensor and a controller, wherein the inlet water draining assembly is connected between a water inlet end and a water inlet pipe of a heat exchanger of the gas water heater and is provided with a first channel, the outlet water draining assembly is connected between a water outlet end and a water outlet pipe of the heat exchanger of the gas water heater and is provided with a second channel, one of the first channel and the second channel is a water draining channel, the other of the first channel and the second channel is an air flow channel and is connected with an air pump, and the controller is electrically connected with the inlet water draining assembly, the outlet water draining assembly and the temperature sensor to form a control loop; the water draining and antifreezing device of the gas water heater can realize automatic water draining and antifreezing, solves the problem of complicated manual water draining operation, but needs manual resetting after automatic water draining, so that the water heater can normally work when being started next time, and the problem of complicated manual resetting also exists.
Therefore, further improvements are needed.
Disclosure of Invention
The utility model aims to provide an automatic water draining device of a water heater, which has the advantages of simple structure, good water draining effect, convenient operation and strong practicability, so as to overcome the defects in the prior art.
According to the automatic drainage device of this purpose design, including heat exchanger, its characterized in that: the water flow sensor is arranged on a cold water inlet pipe of the water heater, the cold water inlet pipe is connected with the electric three-way valve, the electric three-way valve is respectively connected with a heat exchanger and a water outlet pipe of the water heater, the temperature sensor is arranged on a hot water outlet pipe of the water heater, a connecting branch pipe is connected between the cold water inlet pipe and the hot water outlet pipe, the stop valve is arranged on the connecting branch pipe, and the controller is respectively controlled to be connected with the water flow sensor, the electric three-way valve, the stop valve and the temperature sensor; when the temperature sensor detects that the water in the heat exchanger is lower than a certain temperature, the stop valve is opened, and the motor drives the electric three-way valve to be respectively communicated with the heat exchanger and the drain pipe under the control of the controller, so that drainage is realized; the water heater is started again, water flows through the cold water inlet pipe, the water flow sensor, the stop valve and the hot water outlet pipe in sequence, the motor drives the electric three-way valve to be respectively communicated with the cold water inlet pipe and the heat exchanger under the control action of the controller, and the stop valve is closed.
The hot water outlet pipe is provided with a one-way valve.
A valve core, a first channel, a second channel and a third channel are arranged in the valve body, the first channel is connected with a drain pipe, the second channel is connected with a cold water inlet pipe, the third channel is connected with a heat exchanger, and a rotating shaft of the motor is in driving connection with the valve core; when the motor drives the valve core to rotate to the first position, the first channel is communicated with the third channel, the second channel is not communicated with the third channel, and when the motor drives the valve core to rotate to the second position, the second channel is communicated with the third channel, and the first channel is not communicated with the third channel.
The bottom of the heat exchanger is provided with a burner.
The cold water inlet pipe is provided with a water filter.
The water heater is provided with a cold water inlet communicated with a water source, one end of the cold water inlet pipe is connected with the cold water inlet, and the other end of the cold water inlet pipe is connected with the electric three-way valve.
The water heater is provided with a hot water outlet, one end of the hot water outlet pipe is connected with the heat exchanger, and the other end of the hot water outlet pipe is connected with the hot water outlet.
One end of the drain pipe is connected with the electric three-way valve, and the other end of the drain pipe is provided with a drain outlet.
The electric three-way valve is connected with the heat exchanger through a connecting pipe.
The controller is respectively connected with the electric three-way valve, the stop valve, the water flow sensor and the temperature sensor in a communication way through a wired or wireless communication module.
The automatic water draining device of the water heater monitors water in the heat exchanger through the temperature sensor, when the temperature sensor detects that the water temperature in the heat exchanger is lower than 3 ℃, the temperature sensor feeds back a signal to the controller, the controller sends out a signal to be transmitted to the electric three-way valve, the electric three-way valve is started, the water inlet end is closed, the water draining end is opened, the water in the heat exchanger is automatically drained under the action of gravity, so that the automatic water draining and freezing preventing effect is achieved, meanwhile, the controller sends out a signal to the stop valve, the stop valve is conducted, when the water heater is started next time, the water outlet valve is opened, cold water flows through the cold water inlet, the water flow sensor, the stop valve and the hot water outlet, the water flow sensor detects a water flow signal, the signal is transmitted to the controller, the controller sends out an instruction to reset the electric three-way valve, the heat exchanger and the cold water inlet pipe are conducted, the drain pipe is closed, the stop valve is closed, and the water heater is recovered to be normally used; the automatic water draining device can realize automatic water draining in the heat exchanger of the water heater without manual water draining, and when the water heater is reused, the electric three-way valve of the water heater can be automatically reset and can be automatically used normally, so that the problem of complicated manual water draining or automatic water draining and manual resetting operations of the traditional water heater can be solved.
In addition, the stepping motor is used for controlling the switching of the electric three-way valve, so that the control is accurate, the reliability is high, and the switching failure of the electric three-way valve is not easy to influence by the environment.
Drawings
Fig. 1 is a schematic structural view of an automatic draining device in a draining state according to a first embodiment of the present utility model.
Fig. 2 is a schematic structural view of the automatic draining device in a normal use state according to the first embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of an electric three-way valve according to a first embodiment of the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1-3, the automatic water draining device of the water heater comprises a heat exchanger 1, a water flow sensor 2, an electric three-way valve 3, a stop valve 4, a controller 5 and a temperature sensor 6, wherein the water flow sensor 2 is arranged on a cold water inlet pipe 7 of the water heater, the water flow sensor 2 can detect water flow signals, the cold water inlet pipe 7 is connected with the electric three-way valve 3, the electric three-way valve 3 is respectively connected with the heat exchanger 1 and a water draining pipe 8 of the water heater, the temperature sensor 6 is arranged on a hot water outlet pipe 9 of the water heater, a connecting branch pipe 10 is connected between the cold water inlet pipe 7 and the hot water outlet pipe 9, the stop valve 4 is arranged on the connecting branch pipe 10, the controller 5 respectively controls the water flow sensor 2, the electric three-way valve 3, the stop valve 4 and the temperature sensor 6, and the electric three-way valve 3 comprises a valve body 11 and a stepping motor 12 arranged on the valve body 11; the hot water outlet pipe 9 is provided with a one-way valve 13.
When the water heater works normally, the electric three-way valve 3 is that the cold water inlet pipe 7 is communicated with the heat exchanger 1, the stop valve 4 is in a closed state, and water flows through the water flow sensor 2, the electric three-way valve 3, the heat exchanger 1, the one-way valve 13 and the hot water outlet 21 from the cold water inlet 20, so that the normal use of the water heater is realized;
when the temperature sensor 6 detects that the water temperature in the heat exchanger 1 is lower than 3 ℃, the temperature sensor 6 transmits a signal to the controller 5, the controller 5 sends an instruction to the electric three-way valve 3, the drain pipe 8 and the heat exchanger 1 are conducted under the action of the stepping motor 12, meanwhile, the stop valve 4 is opened, and the water in the heat exchanger 1 is discharged from the drain pipe 8 under the action of gravity, so that the effects of draining and preventing freezing are achieved;
when the water heater is used again, the water outlet end is opened, water flows through the cold water inlet 20, the water flow sensor 2, the stop valve 4 and the hot water outlet 21, the water flow sensor 2 detects a water flow signal and sends the signal to the controller 5, the controller 5 receives the water flow signal and sends an instruction to the electric three-way valve 3 and the stop valve 4, the electric three-way valve 3 resets and conducts the connecting pipe 23 of the cold water inlet pipe 7 and the heat exchanger 1 under the action of the stepping motor 12, meanwhile, the stop valve 4 is closed, and the water heater is restored to a normal use state.
The valve body 11 is internally provided with a valve core 14, a first channel 15, a second channel 16 and a third channel 17, wherein the first channel 15 is a water discharge end, the second channel 16 is a water inlet end, the third channel 17 is a water outlet end, the first channel 15 is connected with a water discharge pipe 8, the second channel 16 is connected with a cold water inlet pipe 7, the third channel 17 is connected with a heat exchanger 1, and a rotating shaft 18 of the motor 12 is in driving connection with the valve core 14; when the motor 12 drives the valve core 14 to rotate to the first position A, the first channel 15 is communicated with the third channel 17, the second channel 16 is not communicated with the third channel 17, and at the moment, the drain pipe 8 is communicated with the heat exchanger 1, so that drainage is realized, and water cannot enter; when the motor 12 drives the valve core 14 to rotate to the second position B, the second channel 16 and the third channel 17 are communicated, the first channel 15 and the third channel 17 are not communicated, and at the moment, the cold water inlet pipe 7 is communicated with the heat exchanger 1, so that water inlet is realized, and water can not be discharged.
The bottom of the heat exchanger 1 is provided with a burner 19.
The cold water inlet pipe 7 is provided with a water quality filter which can purify a water inlet source so as to provide cleaner and environment-friendly hot water.
The water heater is provided with a cold water inlet 20 communicated with a water source, one end of the cold water inlet pipe 7 is connected with the cold water inlet 20, and the other end is connected with the electric three-way valve 3.
The water heater is provided with a hot water outlet 21, one end of the hot water outlet pipe 9 is connected with the heat exchanger 1, and the other end is connected with the hot water outlet 21.
One end of the drain pipe 8 is connected with the electric three-way valve 3, and the other end is provided with a drain outlet 22.
The electric three-way valve 3 is connected to the heat exchanger 1 through a connection pipe 23.
The controller 5 is respectively connected with the electric three-way valve 3, the stop valve 4, the water flow sensor 2 and the temperature sensor 6 in a communication way through wired or wireless communication modules, and the controller 5 in the embodiment is respectively connected with the electric three-way valve 3, the stop valve 4, the water flow sensor 2 and the temperature sensor 6 in a communication way through wires, and in addition, the communication connection can be realized through WIFI.
The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. An automatic water draining device of a water heater, comprising a heat exchanger (1), characterized in that: the water flow control device comprises a water flow sensor (2), an electric three-way valve (3), a stop valve (4), a controller (5) and a temperature sensor (6), wherein the water flow sensor (2) is arranged on a cold water inlet pipe (7) of a water heater, the cold water inlet pipe (7) is connected with the electric three-way valve (3), the electric three-way valve (3) is respectively connected with a heat exchanger (1) and a water outlet pipe (8) of the water heater, the temperature sensor (6) is arranged on a hot water outlet pipe (9) of the water heater, a connecting branch pipe (10) is connected between the cold water inlet pipe (7) and the hot water outlet pipe (9), the stop valve (4) is arranged on the connecting branch pipe (10), the controller (5) is respectively controlled to be connected with the water flow sensor (2), the electric three-way valve (3), the stop valve (4) and the temperature sensor (6), and the electric three-way valve (3) comprises a valve body (11) and a motor (12) arranged on the valve body (11); when the temperature sensor (6) detects that the water in the heat exchanger (1) is lower than a certain temperature, the stop valve (4) is opened, and the motor (12) drives the electric three-way valve (3) to be respectively communicated with the heat exchanger (1) and the drain pipe (8) under the control action of the controller (5), so that drainage is realized; the water heater is started again, water flows sequentially through the cold water inlet pipe (7), the water flow sensor (2), the stop valve (4) and the hot water outlet pipe (9), the motor (12) drives the electric three-way valve (3) to be respectively communicated with the cold water inlet pipe (7) and the heat exchanger (1) under the control action of the controller (5), and the stop valve (4) is closed;
the hot water outlet pipe (9) is provided with a one-way valve (13).
2. The automatic water discharge device of a water heater according to claim 1, wherein: a valve core (14), a first channel (15), a second channel (16) and a third channel (17) are arranged in the valve body (11), the first channel (15) is connected with the drain pipe (8), the second channel (16) is connected with the cold water inlet pipe (7), the third channel (17) is connected with the heat exchanger (1), and a rotating shaft (18) of the motor (12) is in driving connection with the valve core (14); when the motor (12) drives the valve core (14) to rotate to the first position A, the first channel (15) is communicated with the third channel (17), the second channel (16) is not communicated with the third channel (17), and when the motor (12) drives the valve core (14) to rotate to the second position B, the second channel (16) is communicated with the third channel (17), and the first channel (15) is not communicated with the third channel (17).
3. The automatic water discharge device of a water heater according to claim 1, wherein: the bottom of the heat exchanger (1) is provided with a burner (19).
4. The automatic water discharge device of a water heater according to claim 1, wherein: the cold water inlet pipe (7) is provided with a water filter.
5. The automatic water discharge device of a water heater according to claim 1, wherein: the water heater is provided with a cold water inlet (20) communicated with a water source, one end of the cold water inlet pipe (7) is connected with the cold water inlet (20), and the other end is connected with the electric three-way valve (3).
6. The automatic water discharge device of a water heater according to claim 1, wherein: the water heater is provided with a hot water outlet (21), one end of the hot water outlet pipe (9) is connected with the heat exchanger (1), and the other end is connected with the hot water outlet (21).
7. The automatic water discharge device of a water heater according to claim 1, wherein: one end of the drain pipe (8) is connected with the electric three-way valve (3), and the other end is provided with a drain outlet (22).
8. The automatic water discharge device of a water heater according to claim 1, wherein: the electric three-way valve (3) is connected with the heat exchanger (1) through a connecting pipe (23).
9. An automatic water drain for a water heater according to any one of claims 1 to 8, wherein: the controller (5) is respectively connected with the electric three-way valve (3), the stop valve (4), the water flow sensor (2) and the temperature sensor (6) in a communication way through a wired or wireless communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320902113.5U CN220489421U (en) | 2023-04-20 | 2023-04-20 | Automatic water draining device of water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320902113.5U CN220489421U (en) | 2023-04-20 | 2023-04-20 | Automatic water draining device of water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220489421U true CN220489421U (en) | 2024-02-13 |
Family
ID=89839594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320902113.5U Active CN220489421U (en) | 2023-04-20 | 2023-04-20 | Automatic water draining device of water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220489421U (en) |
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2023
- 2023-04-20 CN CN202320902113.5U patent/CN220489421U/en active Active
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