TWI509206B - Preheating method for water heater and water heater - Google Patents

Description

Water heater preheating method and water heater

The invention relates to a preheating method for a water heater and a water heater, in particular to a preheating method for a water heater that turns on a hot water tap and immediately has hot water, allows the user to immediately have hot water, and does not need to set a water return pipeline. Water heater.

With the advancement of the times, water heaters have become an indispensable device for the current home life. The energy classification of water heaters can be divided into three types: gas water heaters, electric water heaters and solar water heaters. Among them, gas water heaters are most commonly used.

Conventional gas water heaters usually include a fan, a burner and a heat exchanger, and the burner can be used to heat the heat exchanger so that cold water can enter the heat exchanger for heat exchange and then drain the hot water.

However, when the water heater wants to use hot water, it takes a period of heating time to turn on the faucet before it starts to generate hot water, which not only wastes water resources, but also causes inconvenience to users. Especially in recent years, affected by environmental changes, the distribution of the rainy season is becoming more and more uneven, which leads to uneven water storage in the reservoir. Therefore, water shortage often occurs in the non-rainy season. If a large amount of water is wasted, the environment will also be expanded. Destruction, and wasting water, will also increase water bills, so saving water has become the mainstream in recent years.

The applicant has proposed a "water-saving circulation heating device" (certificate number: M433543), which is mainly to set up a water return pipe in the water heater, which can heat the cold water in the pipeline through the pump to the equipment to make it in the pipeline. Cold water turns into hot water, turning on the faucet That is, there is hot water, no longer cold water, to reduce the waste of water resources, and also allow users to immediately have hot water to use. However, the above-mentioned "water-saving circulation heating equipment" must be provided with a return water pipe to achieve the effect of water saving and immediate hot water use.

The reason is that the present inventors have felt that the above problems can be improved, and that the present invention has been deliberately studied and used in conjunction with the theory, and a present invention which is reasonable in design and effective in improving the above problems has been proposed.

The technical problem to be solved by the invention is to provide a preheating method for a water heater and a water heater, and the hot water tap is turned on immediately to have hot water, so that the user can immediately use the hot water to reduce the waste of water resources without setting a water return pipe. road.

In order to solve the above technical problem, the present invention provides a method for preheating a water heater, comprising the steps of: providing a water heater, the water heater comprising a water heater unit and a pressurized pump, wherein the water heater unit and the pressure pump are connected Connecting a pipeline; when the water heater is first installed, setting a preheating heating time on at least one remote controller of the water heater, the preheating heating time is a time when the hot water can be heated; and when the water heater is started to be used, Pressing a preheat button on the remote controller to control the pressurized pump to pressurize cold water, and let cold water enter the water heater unit for preheating combustion. The heating time is the preheating heating set when the water heater is first installed. Time, when the heating time is up, the heating is stopped.

In order to solve the above technical problem, the present invention further provides a water heater, comprising: a water heater unit; a pressurized pump, a connection pipeline connected between the water heater unit and the pressure pump; and at least one remote controller, The remote controller sets a preheating heating time when the water heater is first installed, and the preheating heating time is a time when the hot water can be heated.

Preferably, the water heater unit is connected to a hot water pipeline, and the pressurized pump is connected with a cold water pipeline, and the hot water pipeline and the cold water pipeline are connected to the water outlet device.

Preferably, a check valve is installed on the cold water pipe near the water discharge device.

Preferably, the preheating heating time is from 10 seconds to 2 minutes.

The invention has the following beneficial effects:

When the water heater is installed for the first time, the preheating heating time is set on the remote controller, and the preheating heating time is the time when the hot water can be heated. When the water heater is started, press the preheat button on the remote controller to make the warming button on the remote controller The pressurized pump pressurizes the cold water to allow the cold water to enter the water heater unit for preheating combustion. When the user turns on the hot water outlet device, the hot water is already heated, and the water is hot water, so that the user can immediately use the hot water. It can reduce the waste of water resources, has the effect of environmental protection and energy saving, and does not need to set back water pipeline.

In order to further understand the technology, method and effect of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the present invention. The drawings are to be considered in all respects as illustrative and not restrictive

1‧‧‧Water heater unit

2‧‧‧Pressure pump

3‧‧‧Connecting pipe

4‧‧‧ hot water pipeline

5‧‧‧ cold water pipeline

6‧‧‧Water outlet

7‧‧‧Remote control

8‧‧‧ check valve

T‧‧‧Preheating heating time

1 is a flow chart of a method for preheating a water heater of the present invention.

2 is a schematic view of a water heater of the present invention.

[First Embodiment]

2 is a schematic view of a water heater according to the present invention. The water heater of the present invention comprises a water heater unit 1 and a pressurized pump 2, which is a gas water heater, which comprises a fan, a burner and a heat exchanger. The burner can be used to heat the heat exchanger so that the cold water can enter the heat exchanger for heat exchange and then discharge the hot water; the water heater unit 1 belongs to the prior art, and the invention does not limit the water heater unit. The structure of 1 is not repeated here.

The pressurized pump 2 is connected to a suitable water source and can be used to input cold water to the water heater unit 1 and the water outlet unit 6. There is a connection between the water heater unit 1 and the pressure pump 2 In the pipeline 3, the water heater unit 1 is connected to the hot water line 4, and the pressurized pump 2 is connected to the cold water line 5. The hot water pipe 4 and the cold water pipe 5 are connected to the water discharge device 6, and the water discharge device 6 may be a device such as a faucet or a shower head, and the water discharge device 6 may be disposed at a flow table, a bathroom, a shower device or a washbasin. For outputting the water to be used, the type and configuration of the water discharge device 6 are not limited and may be changed as needed. The hot water can be sent to the water discharge device 6 via the hot water line 4, and the cold water can be sent to the water discharge device 6 via the cold water line 5. The hot water line 4 and the cold water line 5 can be in communication, and a check valve 8 can be added to the cold water line 5 near the water discharge device 6 to prevent hot water from entering the cold water line 5. The water heater of the present invention further includes at least one remote controller 7, the remote controller 7 is a remote controller having a warm-up button, and the remote controller 7 is provided with a preheating heating time when the water heater is first installed, the preheating heating The time is the time when the hot water can be heated.

[Second embodiment]

Please refer to FIG. 1 and FIG. 2 simultaneously. The present invention further provides a preheating method for a water heater, which can also have a function of preheating hot water without a return water pipeline. The method for preheating the water heater includes the following steps:

Firstly, a water heater is provided, the water heater comprises a water heater unit 1 and a pressurized pump 2, and a connection pipeline 3 is connected between the water heater unit 1 and the pressure pump 2, and the water heater unit 1 is connected with a hot water pipeline 4. The pressurized pump 2 is connected to a cold water pipe 5, and the hot water pipe 4 and the cold water pipe 5 are connected to the water discharge device 6; the structure of the water heater is as described above, and therefore will not be described again.

When the water heater is installed for the first time, a preheating heating time T is set on at least one remote controller 7 of the water heater, and the preheating heating time T is a time when the hot water can be heated, and the preheating heating time T is The length is not limited, but is preferably limited to 10 seconds to 2 minutes, and may be, for example, 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds, 35 seconds, 40 seconds, 45 seconds, 50 seconds, 55 seconds, 1 minute, 1 minute 30 seconds or 2 minutes, etc., the preheating heating time T can be appropriately changed according to factors such as the length of the pipeline, the season, and the like, for example, the summer can be preheated for a short time, and the warming time is lengthened in winter. also For example, a short line can be preheated for a short period of time, and a longer line can lengthen the warm-up time. After the setting is completed, the next warm-up time has been memorized on the remote controller 7.

When the water heater is started, the remote controller 7 can be remotely activated to preheat the water heater, that is, the user can press a warm-up button on the remote controller 7 to control the pressure pump 2 to pressurize the cold water to let the cold water pass through the connecting pipeline. 3 entering the water heater unit 1 for preheating combustion, at this time, the remote controller 7 can notify the circuit unit (main board) of the water heater unit 1 to control heating, the heating time is the first set preheating heating time T, and the heating time is stopped. .

When the user opens the water outlet device 6 (such as a hot water tap), the hot water is already heated, and the water is hot water, so that the user can immediately use the hot water to reduce the waste of water resources.

The remote controller 7 is not set to continue to warm up for a short time, and the number of preheating is limited. If the preheating button is pressed for a short time, the preheating operation is ignored. The remote controller 7 can be a wired remote controller or a wireless remote controller, that is, the remote controller 7 can be electrically connected to the circuit unit of the water heater unit 1 by wire or wirelessly to operate using a wired remote control or a wireless remote control.

In addition, the circuit unit (main board) of the water heater of the present invention may be provided with a central processing unit (CPU), a temperature sensor, a flow sensor, and a programmable read only memory (EEPROM), etc., and is responsible for determining temperature and flow changes. The status detection is used and automatically memorized into the programmable read-only memory (EEPROM) to achieve the function of automatically detecting, judging and setting the preheating heating time.

The invention provides a preheating method for a water heater and a water heater, and the hot water tap is immediately opened with hot water, so that the user can immediately use the hot water, which can reduce the waste of water resources, has the effect of environmental protection and energy saving, and does not need to set the return water pipeline. .

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalents of the present invention and the equivalents of the drawings are all included in the present invention. Within the scope of protection, it is given to Chen Ming.

1‧‧‧Water heater unit

2‧‧‧Pressure pump

3‧‧‧Connecting pipe

4‧‧‧ hot water pipeline

5‧‧‧ cold water pipeline

6‧‧‧Water outlet

7‧‧‧Remote control

8‧‧‧ check valve

Claims (11)

A method for preheating a water heater includes the following steps: providing a water heater, the water heater comprising a water heater unit and a pressurized pump, wherein the water heater unit and the pressurized pump are connected with a connecting pipeline; During the sub-installation, a preheating heating time is set on at least one remote controller of the water heater, the preheating heating time is a time when the hot water can be heated; and when the water heater is started to be used, pressing a pre-control on the remote controller The hot button controls the pressurized pump to pressurize the cold water, and the cold water enters the water heater unit for preheating combustion. The heating time is the preheating heating time set when the water heater is installed for the first time, and the heating is stopped when the heating time is reached. The method of preheating a water heater according to claim 1, wherein the water heater unit is connected to a hot water pipe, and the pressurized pump is connected with a cold water pipe, and the hot water pipe and the cold water pipe are connected to the water discharge device. The method of preheating a water heater according to claim 2, wherein the hot water pipe and the cold water pipe are in communication, and a check valve is installed on the cold water pipe near the water discharge device. The preheating method of the water heater according to claim 1, wherein the preheating heating time is 10 seconds to 2 minutes. The method of preheating a water heater according to claim 1, wherein the remote controller is a wired remote controller or a wireless remote controller. The method of preheating a water heater according to claim 1, wherein the water heater has a circuit unit, and the circuit unit is provided with a central processing unit, a temperature sensor, a flow sensor, and a programmable read-only memory, and is responsible for determining the temperature, The detection of the flow change and the use state is automatically memorized into the programmable read-only memory, and the function of automatically detecting, judging and setting the preheating heating time is achieved. A water heater comprising: a water heater unit; a pressurized pump, a connection line is connected between the water heater unit and the pressure pump; and at least one remote controller, the remote controller is provided with a preheating heating time when the water heater is first installed, the pre-heating The heating time is the time during which the hot water can be heated. The water heater according to claim 7, wherein the water heater unit is connected to a hot water pipe, and the pressurized pump is connected with a cold water pipe, and the hot water pipe and the cold water pipe are connected to the water discharge device. The water heater of claim 8, wherein the hot water pipe and the cold water pipe are in communication, and a check valve is installed on the cold water pipe near the water discharge device. The water heater of claim 7, wherein the remote controller is a wired remote controller or a wireless remote controller. The water heater of claim 7, wherein the water heater has a circuit unit, the circuit unit is provided with a central processing unit, a temperature sensor, a flow sensor, and a programmable read-only memory, and is responsible for determining temperature, flow change, and use. The detection of the state is automatically memorized into the programmable read-only memory, and the function of automatically detecting, judging and setting the preheating heating time is achieved.