Complementary energy-saving pipeline box system of two-in-one water heater

Abstract

The utility model relates to a two-in-one water heater complementary energy-saving pipeline box system which comprises a solar water heater, an electric water heater and a pipeline box, temperature sensors are arranged in the solar water heater and the electric water heater, the installation position of the solar water heater is higher than that of the electric water heater, and the pipeline box is arranged in the pipeline box. The pipeline box is provided with a first cold water pipe and a first hot water pipe which are connected with the solar water heater, a second cold water pipe and a second hot water pipe which are connected with the electric water heater, and a hot water outlet pipe connected with water consumption equipment; the first hot water pipe is connected with an electric three-way valve; the electric three-way valve is connected with the second cold water pipe and the second hot water pipe; a circulating pump is connected between the second cold water pipe and the first cold water pipe, and the hot water outlet pipe is connected with the second hot water pipe; water in the solar water heater is supplied to the water heater to call, the power consumption of heating water by the electric water heater is reduced, the states of the electric three-way valve and the circulating pump can be adjusted, and high-temperature water in the solar water heater flows into the electric water heater to increase the water temperature.

Description

Technical Field

[0001] The invention relates to the technical field of water heaters, and in particular to a complementary energy-saving pipeline box system for a two-in-one water heater. Background Art

[0002] At present, there are many types of household water heaters, including solar water heaters, electric water heaters, and gas water heaters. When building household water pipes, there is a pipe system that uses solar water heaters and electric water heaters in parallel. When there is insufficient sunlight, the high-temperature water in the electric water heater and the low-temperature water in the solar water heater are discharged together to make up for the low water temperature in the solar water heater. On the one hand, this pipe system increases the power consumption of the electric water heater. On the other hand, when water is discharged from the two water heaters, the cold and hot water in the pipe are mixed unevenly, resulting in fluctuations in the outlet water temperature; the water pipes connecting the solar water heater will also freeze in low temperature weather, resulting in blockage of the water supply pipe. Therefore, designing an energy-saving pipe box system that can reduce power consumption and evenly deliver hot water to complement the two-in-one water heater has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a two-in-one water heater complementary energy-saving pipeline box system.

[0004] The technical solution of the utility model is an energy-saving pipeline box system for two-in-one water heaters, comprising a solar water heater, an electric water heater and a pipeline box, wherein the solar water heater and the electric water heater are both provided with temperature sensors, the installation position of the solar water heater is higher than the electric water heater, and the pipeline box is provided with a first cold water pipe and a first hot water pipe connecting the solar water heater, a second cold water pipe and a second hot water pipe connecting the electric water heater, and a hot water outlet pipe connecting the water-using equipment; the first hot water pipe is connected to an electric three-way valve, and the electric three-way valve is also connected to the second cold water pipe and the second hot water pipe; a circulating pump is connected between the second cold water pipe and the first cold water pipe, and the hot water outlet pipe is connected to the second hot water pipe.

[0005] After adopting the above structure, during daily water use, the installation position of the solar water heater is higher than that of the electric water heater, the water in the solar water heater flows out through the first hot water pipe to the electric three-way valve, the electric three-way valve is connected to the second cold water pipe and isolated from the second hot water pipe, the water output from the solar water heater flows into the electric water heater from the second cold water pipe and is mixed, and then flows out to the hot water outlet pipe through the second hot water pipe, the water heated by the solar water heater flows into the electric water heater, and the electric energy consumed by the electric water heater for heating water is reduced; when there is sufficient sunlight, the water temperature in the solar water heater is higher than that of the electric water heater, the water temperature difference between the two is obtained according to the detection result of the temperature sensor, the electric three-way valve is adjusted to be connected to the second hot water pipe and isolated from the second cold water pipe, the circulation pump is started, and the water output from the first hot water pipe is connected to the second cold water pipe. The second cold water pipe draws water out of the electric water heater and presses it into the solar water heater from the first cold water pipe. The installation position of the solar water heater is combined with the water pressure change in the electric water heater. The high-temperature water in the solar water heater flows into the electric water heater after passing through the first hot water pipe, the electric three-way valve and the second hot water pipe, so that the electric water heater does not need to be reheated to maintain the internal water temperature. The power of the circulation pump is much smaller than the heating power of the electric water heater, thereby achieving the purpose of reducing energy consumption. The water heated in the solar water heater is used to call the electric water heater, reducing the power consumption of the electric water heater for heating water. The water temperature difference of the water heater is detected to adjust the state of the electric three-way valve and the circulation pump, so that the high-temperature water in the solar water heater flows into the electric water heater to increase the water temperature, so that the electric water heater does not need to frequently heat water.

[0006] As a further improvement of the utility model, the pipeline box is provided with a signal processing module, and the signal of the signal processing module is connected to the temperature sensor, the electric three-way valve and the circulation pump.

[0007] After adopting the above structure, the temperature value sent by the temperature sensor is received through the signal processing module, and the water temperature difference between the solar water heater and the electric water heater is calculated. After the difference meets the preset threshold, a signal is sent to automatically control the electric three-way valve to change the passage and start the circulation pump, so as to timely balance the water temperature inside the two water heaters.

[0008] As a further improvement of the utility model, the pipeline box is provided with a water inlet pipe connected to the tap water network, the water inlet pipe is connected to the first cold water pipe, a first solenoid valve is provided between the water inlet pipe and the first cold water pipe, a first liquid level sensor is provided in the solar water heater, and the first solenoid valve and the first liquid level sensor signal are connected to a signal processing module.

[0009] After adopting the above structure, the remaining water in the solar water heater is detected by the first liquid level sensor. When the water level is insufficient, a signal is sent to the signal processing module. The signal processing module sends a signal to open the first solenoid valve, and the water inlet pipe is connected so that the tap water network can replenish water to the solar water heater in time.

[0010] As a further improvement of the utility model, the solar water heater and the electric water heater are provided with a stop valve for connecting the water pipe, the second cold water pipe is provided with a second solenoid valve connected to the water inlet pipe, and the second hot water pipe is provided with a water pressure switch, which is connected to the switch of the second solenoid valve for linkage cooperation.

[0011] After adopting the above structure, when the first hot water pipe connected to the outdoor solar water heater is blocked by ice due to low temperature weather, water is used through the electric water heater until the water level is lower than the second hot water pipe, the water pressure switch is turned on, and the switch of the connected second solenoid valve is linked to turn on, and tap water is supplied to the electric water heater through the water inlet pipe, the second solenoid valve, and the second cold water pipe to replenish the water inside the electric water heater, so that the electric water heater can heat water normally.

[0012] As a further improvement of the utility model, the solar water heater is provided with a solar photovoltaic panel, and the solar photovoltaic panel is electrically connected to the electric three-way valve and the circulation pump for power supply.

[0013] After adopting the above structure, while the solar water heater heats the tap water, the solar photovoltaic panel absorbs sunlight and converts it into electrical energy, which is then transmitted to the electric three-way valve and the circulation pump for storage and use by the two, thereby reducing the electrical energy consumed from other lines.

[0014] As a further improvement of the utility model, the water inlet end of the circulation pump is connected to the second cold water pipe and is provided with a one-way valve for water inflow, and the water outlet end is connected to the first cold water pipe.

[0015] After adopting the above structure, the one-way valve is used to prevent tap water from flowing back from the circulation pump. When the solar water heater is replenished with water, low-temperature tap water is prevented from flowing into the electric heater to reduce the internal water temperature thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the internal pipeline structure of the pipeline box of the utility model.

[0017] A-solar water heater, Aa-first cold water pipe, Ab-first hot water pipe, B-electric water heater, Ba-second cold water pipe, Bb-second hot water pipe, 1-water inlet pipe, 2-first solenoid valve, 3-stop valve, 4-electric three-way valve, 5-check valve, 6-circulating pump, 7-hot water outlet pipe, 8-second solenoid valve, 9-water pressure switch. DETAILED DESCRIPTION

[0018] like Figure 1A two-in-one water heater complementary energy-saving pipeline box system is shown, comprising a solar water heater A, an electric water heater B and a pipeline box, wherein the solar water heater A and the electric water heater B are both provided with temperature sensors, the installation position of the solar water heater A is higher than that of the electric water heater B, and the pipeline box is provided with a first cold water pipe Aa and a first hot water pipe Ab connecting the solar water heater A, a second cold water pipe Ba and a second hot water pipe Bb connecting the electric water heater B, and a hot water outlet pipe 7 connecting the water-using equipment; the first hot water pipe Ab is connected to an electric three-way valve 4, and the electric three-way valve 4 is also connected to the second cold water pipe Ba and the second hot water pipe Bb; a circulating pump 6 is connected between the second cold water pipe Ba and the first cold water pipe Aa, and the hot water outlet pipe 7 is connected to the second hot water pipe Bb.

[0019] During daily water use, the installation position of the solar water heater A is higher than that of the electric water heater B. The water in the solar water heater A flows out through the first hot water pipe Ab to the electric three-way valve 4. The electric three-way valve 4 is connected to the second cold water pipe Ba and is cut off from the second hot water pipe Bb. The water from the solar water heater A flows into the electric water heater B from the second cold water pipe Ba and is mixed. Then, it flows out through the second hot water pipe Bb to the hot water outlet pipe 7. The water heated by the solar water heater A flows into the electric water heater B, thereby reducing the electric energy consumed by the electric water heater B in heating the water. When there is sufficient sunlight, the water temperature in the solar water heater A is higher than that of the electric water heater B. The water temperature difference between the two is obtained according to the detection result of the temperature sensor. The electric three-way valve 4 is adjusted to connect to the second hot water pipe Bb and is cut off from the second cold water pipe Ba. The circulation pump 6 is started. The water pipe Ba draws the water out of the electric water heater B and presses it into the solar water heater A from the first cold water pipe Aa. The installation position of the solar water heater A is combined with the water pressure change in the electric water heater B. The high-temperature water in the solar water heater A flows into the electric water heater B after passing through the first hot water pipe Ab, the electric three-way valve 4 and the second hot water pipe Bb, so that the electric water heater B does not need to be electrically heated again to maintain the internal water temperature. The power of the circulation pump 6 is much smaller than the heating power of the electric water heater B, so as to achieve the purpose of reducing energy consumption. The water heated in the solar water heater A is used to call the electric water heater B, reducing the power consumption of the electric water heater B in heating water. The water temperature difference of the water heaters is detected to adjust the state of the electric three-way valve 4 and the circulation pump 6, so that the high-temperature water in the solar water heater A flows into the electric water heater B to increase the water temperature, so that the electric water heater B does not need to frequently heat water.

[0020] The pipeline box is provided with a signal processing module, and the signal processing module is connected to the temperature sensor, the electric three-way valve 4 and the circulation pump 6.

[0021] The temperature value sent by the temperature sensor is received through the signal processing module, and the water temperature difference between the solar water heater A and the electric water heater B is calculated. When the difference meets the preset threshold, a signal is sent to automatically control the electric three-way valve 4 to change the passage and start the circulation pump 6, so as to balance the water temperature inside the two water heaters in time.

[0022] The pipeline box is provided with a water inlet pipe 1 connected to the tap water network, and the water inlet pipe 1 is connected to the first cold water pipe Aa. A first solenoid valve 2 is provided between the water inlet pipe 1 and the first cold water pipe Aa. A first liquid level sensor is provided in the solar water heater A, and the first solenoid valve 2 is connected to the first liquid level sensor signal to a signal processing module.

[0023] The remaining water in the solar water heater A is detected by the first liquid level sensor, and a signal is sent to the signal processing module when the water is insufficient. The signal processing module sends a signal to open the first solenoid valve 2, and the water inlet pipe 1 is connected so that the tap water network can replenish water to the solar water heater A in time.

[0024] The solar water heater A and the electric water heater B are provided with a stop valve 3 for connecting water pipes, the second cold water pipe Ba is provided with a second solenoid valve 8 connected to the water inlet pipe, and the second hot water pipe Bb is provided with a water pressure switch 9, which is connected to the switch of the second solenoid valve 8 for linkage coordination.

[0025] When low temperature weather causes the first hot water pipe Ab connected to the outdoor solar water heater A to freeze and become blocked, water is used by the electric water heater B until the water level is lower than the second hot water pipe Bb, the water pressure switch 9 is turned on, and the switch of the connected second solenoid valve 8 is turned on in conjunction, and tap water is supplied to the electric water heater B through the water inlet pipe 1, the second solenoid valve 8, and the second cold water pipe Ba, replenishing the water volume inside the electric water heater B so that the electric water heater B can heat water normally.

[0026] The solar water heater A is provided with a solar photovoltaic panel, and the solar photovoltaic panel is electrically connected to the electric three-way valve 4 and the circulation pump 6 for power supply.

[0027] While the solar water heater A heats the tap water, the solar photovoltaic panel absorbs sunlight and converts it into electrical energy, which is then transmitted to the electric three-way valve 4 and the circulation pump 6 for storage and use by both, thereby reducing the electrical energy consumed from other lines.

[0028] The water inlet end of the circulation pump 6 is connected to the second cold water pipe Ba and is provided with a one-way valve 5 for water inflow, and the water outlet end is connected to the first cold water pipe Aa.

[0029] The one-way valve 5 is used to prevent the tap water from flowing back from the circulation pump 6. When the solar water heater A is replenished with water, it is prevented that the low-temperature tap water flows into the electric heater to reduce the internal water temperature thereof.

Claims

1. An energy-saving pipeline box system for complementary two-in-one water heaters, comprising a solar water heater (A), an electric water heater (B) and a pipeline box, wherein both the solar water heater (A) and the electric water heater (B) are provided with temperature sensors, characterized in that: The installation position of the solar water heater (A) is higher than that of the electric water heater (B); the pipeline box is provided with a first cold water pipe (Aa) and a first hot water pipe (Ab) connecting the solar water heater (A), a second cold water pipe (Ba) and a second hot water pipe (Bb) connecting the electric water heater (B), and a hot water outlet pipe (7) connecting the water-using equipment; the first hot water pipe (Ab) is connected to an electric three-way valve (4), and the electric three-way valve (4) is also connected to the second cold water pipe (Ba) and the second hot water pipe (Bb); a circulation pump (6) is connected between the second cold water pipe (Ba) and the first cold water pipe (Aa), and the hot water outlet pipe (7) is connected to the second hot water pipe (Bb).

2. The two-in-one water heater complementary energy-saving pipeline box system according to claim 1, characterized in that: The pipeline box is provided with a signal processing module, and the signal processing module connects the temperature sensor, the electric three-way valve (4) and the circulation pump (6).

3. The two-in-one water heater complementary energy-saving pipeline box system according to claim 2, characterized in that: The pipeline box is provided with a water inlet pipe (1) connected to the tap water network, the water inlet pipe (1) is connected to the first cold water pipe (Aa), a first electromagnetic valve (2) is provided between the water inlet pipe (1) and the first cold water pipe (Aa), a first liquid level sensor is provided in the solar water heater (A), and the first electromagnetic valve (2) and the first liquid level sensor signal are connected to a signal processing module.

4. The two-in-one water heater complementary energy-saving pipeline box system according to claim 3, characterized in that: The solar water heater (A) and the electric water heater (B) are provided with a stop valve (3) for connecting a water pipe, the second cold water pipe (Ba) is provided with a second solenoid valve (8) connected to a water inlet pipe, and the second hot water pipe (Bb) is provided with a water pressure switch (9), and the water pressure switch (9) is connected to the switch of the second solenoid valve (8) for linkage coordination.

5. A two-in-one water heater complementary energy-saving pipeline box system according to any one of claims 1 to 4, characterized in that: The solar water heater (A) is provided with a solar photovoltaic panel, and the solar photovoltaic panel is electrically connected to the electric three-way valve (4) and the circulation pump (6) for power supply.

6. A two-in-one water heater complementary energy-saving pipeline box system according to any one of claims 1 to 4, characterized in that: The water inlet end of the circulation pump (6) is connected to the second cold water pipe (Ba) and is provided with a one-way valve (5) for water inflow, and the water outlet end is connected to the first cold water pipe (Aa).

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