Gas Heating Hot Water Boiler with Heat Recovery Storage Tank

Abstract

A gas-fired heating water boiler with a heat recovery water storage tank comprises a gas heating tank, a water storage tank and a battery; a gas burner and a heat exchanger are arranged inside the gas heating tank for heating cold water; the water storage tank and the gas heating tank are connected by a water pipe for storing heated water; the battery and the water storage tank are connected by a wire for storing electrical energy converted from the heat energy of the water storage tank; the battery is used to power the gas-fired heating water boiler with a water storage tank for heat recovery. The present invention uses a relatively low-power gas heating tank for heating, and the heated water can be directly discharged or stored in the water storage tank for use in domestic hot water and heating equipment. The heat energy of the water in the water storage tank can be converted into electrical energy and stored in the battery under the action of the temperature difference power generation sheet. Through the control system and the energy management system, the energy can be recovered and stored most efficiently, and the gas-fired heating water boiler does not need to be plugged in, and the installation is more flexible.

Description

Technical Field

[0001] The invention relates to the field of gas-fired heating water heaters, and more particularly to a gas-fired heating water heater with a heat energy recovery water storage bin. Background Art

[0002] Gas heating water heaters have a powerful family central heating function and can meet the heating needs of multiple rooms. The heating function of gas heating water heaters is affected by two factors: local climate conditions and building insulation conditions. Most of the existing gas heating water heaters are cold water heating direct outlet type, without water tanks to reduce the volume and reduce heat energy loss. In order to meet the needs of all heating equipment being used at the same time, the heating mechanism must be made into a high-power type. When only a small number of heating equipment is used, the high-power heating mechanism consumes more energy than the lower-power heating mechanism. In addition, the heating water heater requires a small amount of electricity to work and needs to be installed in a place with a socket, so that the installation location must be considered and the wiring should be done early during decoration. If a low-power heating mechanism is used for energy saving, a water tank is needed to store water to meet the needs of large water consumption. The disadvantage of storing water in a water tank is that the water temperature will slowly dissipate heat, causing heat energy loss, and the energy preservation effect is not ideal. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a gas-fired heating water boiler with a heat recovery water storage tank. The gas-fired heating water boiler with a heat recovery water storage tank of the present invention adopts a relatively low-power gas heating tank for heating. The heated water can be directly discharged or stored in an energy storage water tank for use in domestic hot water and heating equipment. The heat energy of the water in the energy storage water tank can be converted into electrical energy and stored in a battery under the action of a temperature difference power generation sheet. Through a control system and an energy management system, a part of the electrical energy in the battery is used for daily household use such as charging, and the other part of the electrical energy is used to power the entire gas-fired heating water boiler, so that energy is recovered and stored in the most efficient way. The gas-fired heating water boiler does not need to be plugged in, and the installation is more flexible.

[0004] The specific technical scheme of the present invention is as follows: a gas-fired heating water boiler with a heat recovery water storage tank comprises a gas heating tank, an energy storage water tank and a battery; a gas burner and a heat exchanger are provided inside the gas heating tank for heating cold water; the energy storage water tank and the gas heating tank are connected by a water pipe for storing heated water; the battery and the energy storage water tank are connected by a wire for storing electrical energy converted from the thermal energy of the energy storage water tank; the battery is used to power the gas-fired heating water boiler with a heat recovery water storage tank.

[0005] Therefore, most of the existing gas heating water heaters are cold water heating direct outlet type, without water tanks to reduce volume and reduce heat energy loss, and in order to meet the needs of all heating equipment being used at the same time, the heating mechanism must be made into a high-power type, and the high-power heating mechanism has higher energy consumption than the lower-power heating mechanism when only a small number of heating equipment are used. In addition, the heating water heater requires a small amount of electricity to work and needs to be installed in a place with a socket; and the gas heating water heater with a heat energy recovery water storage tank uses the smaller power gas heating tank for heating. The heated water can be directly discharged or stored in the energy storage tank for use in domestic hot water and heating equipment, and a part of it is converted into electrical energy and stored in the battery. Through the control system and energy management system, a part of the electrical energy in the battery is used for daily household use such as charging, and the other part of the electrical energy is used to power the entire heat recovery device, so that energy can be recovered and stored most efficiently.

[0006] As a preferred embodiment of the present invention, the energy storage water tank is divided into a cold water chamber, a hot water power generation chamber and a hot water storage chamber from the outside to the inside, and a semiconductor thermoelectric power generation sheet is installed in the partition layer between the cold water chamber and the hot water power generation chamber, and the semiconductor thermoelectric power generation sheet is connected to the battery through a wire.

[0007] As a result, a temperature difference is formed between the cold water chamber and the hot water power generation chamber. When there is a temperature difference on both sides, the semiconductor thermoelectric power generation sheet directly converts thermal energy into electrical energy and stores it in the battery using the Seeberk effect.

[0008] As a preferred embodiment of the present invention, a water flow channel exists between the cold water chamber, the hot water power generation chamber and the bottom of the hot water storage chamber, and the semiconductor temperature difference power generation sheet is installed on the side and bottom of the hot water power generation chamber.

[0009] Therefore, the semiconductor temperature difference power generation sheet can generate electricity both on the side and the bottom of the hot water power generation chamber, thereby improving the heat energy recovery efficiency.

[0010] As a preferred embodiment of the present invention, the side wall of the cold water chamber is provided with a cooling water inlet and a cooling water outlet, the gas heating chamber is provided with a heating water inlet and a heating water outlet, the cooling water inlet is connected to the tap water pipe through a water pipe, and the cooling water outlet is connected to the heating water inlet through a water pipe.

[0011] Therefore, tap water with a relatively low temperature is always present in the cold water chamber and is transported to the gas heating chamber through a water pipe for heating.

[0012] As a preferred embodiment of the present invention, the hot water power generation chamber and the top of the hot water storage chamber are covered by a thermal insulation layer.

[0013] Thus, hot water is stored in the hot water power generation chamber and the hot water storage chamber, and the use of the thermal insulation layer can reduce energy loss and improve heat recovery efficiency. The thermal insulation layer uses thermal insulation materials such as foam.

[0014] As a preferred embodiment of the present invention, the insulation layer at the top of the hot water power generation chamber is provided with a hot water inlet, the hot water inlet is connected to the heating outlet through a water pipe, and the water pipe passes through the hot water inlet and is inserted into the bottom of the hot water power generation chamber.

[0015] Therefore, the temperature difference between the two sides of the semiconductor thermoelectric power generation sheet is large, and the power generation effect is better; the water heated by the gas heating chamber first enters the hot water power generation chamber, which can ensure that the temperature difference between the hot water power generation chamber and the cold water chamber is high enough to ensure the power generation effect of the semiconductor thermoelectric power generation sheet.

[0016] As a preferred embodiment of the present invention, a flow hole connected to the hot water power generation chamber is formed on the side wall of the hot water storage chamber, and the maximum height of the semiconductor temperature difference power generation sheet does not exceed the height of the flow hole.

[0017] Therefore, when the water level in the hot water power generation chamber rises to the height of the flow hole, the hot water in the hot water power generation chamber will flow into the hot water storage chamber through the flow hole, so that the hot water is kept warm in the hot water storage chamber and can be used for washing pots, pans, etc.; and the height of the flow hole is higher than the height of the semiconductor temperature difference power generation chip, which can ensure that the water in the hot water power generation chamber completely covers the semiconductor temperature difference power generation chip before entering the hot water storage chamber, so as to ensure that the thermal energy of the water is first converted into electrical energy and stored in the most efficient way, thereby reducing the energy loss caused by the natural heat dissipation of the water.

[0018] As a preferred embodiment of the present invention, the insulation layer at the top of the hot water storage chamber is provided with a circulating heating outlet and a hot water supply outlet, the circulating heating outlet is connected to the heating water inlet through a water pipe and a three-way valve, and the hot water supply outlet is connected to a cleaning sink or other device using hot water through a water pipe; the water pipes of the two water inlets are respectively inserted into the bottom of the hot water storage chamber.

[0019] Therefore, when the water in the hot water power generation chamber and the hot water storage chamber is full, the control system cuts off the water discharge from the cooling water outlet and replaces it with the water discharge from the circulating heating outlet, so that the water in the hot water storage chamber flows through the gas heating chamber for heating and then flows back to the hot water power generation chamber, thereby realizing water circulation and maintaining a higher water temperature in the hot water power generation chamber and the hot water storage chamber.

[0020] As a preferred embodiment of the present invention, a liquid level switch is installed in the hot water storage chamber, and the liquid level switch is a dual-sensing type for upper and lower liquid levels.

[0021] Therefore, the liquid level switch is used to detect the water level in the hot water storage chamber; when the cooling water outlet continuously discharges water so that the water level in the hot water storage chamber reaches a high level, the upper liquid level sensor of the liquid level switch cuts off the water discharge from the cooling water outlet through the control system, and replaces it with water discharge from the circulating heating outlet to prevent water overflow and maintain the water temperature; when the hot water supply outlet transports water to the outside, the water storage amount in the hot water storage chamber will be reduced. When the water level in the hot water storage chamber reaches a low level, the lower liquid level sensor of the liquid level switch cuts off the hot water supply outlet through the control system to continue to supply water to the outside.

[0022] As a preferred embodiment of the present invention, the water pipes connected to the cooling water outlet, the circulating heating outlet and the hot water supply outlet are respectively installed with water pumps and one-way valves, and the one-way valves are connected in series to the water pump outlets to block the water in the water pipes from flowing back to the cooling water outlet, the circulating heating outlet and the hot water supply outlet.

[0023] Therefore, the energy storage water tank is installed at a lower position, and the water pump is used to transport the water in the energy storage water tank to a higher position; the water pumps are all low-power pumps, and keeping water at the water inlet and outlet can extend the service life, so the use of the one-way valve can not only prevent backflow but also ensure the service life of the water pump; in addition, the electricity used by the water pump is supplied by the battery to achieve self-sufficiency, and the speed of the water pump can be controlled by the control system and the energy management system to meet the efficient recovery and storage of energy.

[0024] In summary, the present invention has the following beneficial effects:

[0025] 1. The gas-fired heating water heater with a heat recovery water storage tank of the present invention uses a relatively low-power gas heating tank to heat cold water. The heated water can be directly discharged or stored in a storage water tank for use in domestic hot water and heating equipment, thereby saving energy and meeting different heating needs.

[0026] 2. The present invention uses semiconductor temperature difference power generation technology to convert the heat energy of water in the energy storage tank into electrical energy and store it in the battery. Through the control system and energy management system, the energy can be efficiently recovered and stored. The electrical energy in the battery can be used for daily household use such as charging.

[0027] 3. The storage battery of the present invention ensures that a portion of the electric energy is used to power the entire gas heating water heater under the control of the control system and the energy management system, so that the gas heating water heater does not need to be plugged in and the installation is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a gas-fired heating water heater with a heat energy recovery water storage tank according to the present invention;

[0029] In the figure, 1-gas heating chamber, 11-heating water inlet, 12-heating water outlet, 2-energy storage water tank, 21-cold water chamber, 211-cooling water inlet, 212-cooling water outlet, 22-hot water power generation chamber, 221-hot water inlet, 23-hot water storage chamber, 231-flow hole, 232-circulating heating outlet, 233-hot water supply outlet, 234-liquid level switch, 24-semiconductor temperature difference power generation sheet, 25-insulation layer, 26-water pump, 27-check valve, 3-battery. DETAILED DESCRIPTION

[0030] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0031] like Figure 1 A gas-fired heating water boiler with a heat recovery water storage tank comprises a gas heating tank 1, an energy storage water tank 2 and a battery 3; a gas burner and a heat exchanger are arranged inside the gas heating tank 1 for heating cold water; the energy storage water tank 2 is connected to the gas heating tank 1 through a water pipe for storing heated water; the battery 3 is connected to the energy storage water tank 2 through a wire for storing electrical energy converted from the heat energy of the energy storage water tank 2; the battery 3 is used to power the gas-fired heating water boiler with a heat recovery water storage tank.

[0032] Therefore, most of the existing gas heating water heaters are cold water heating direct outlet type, without water tanks to reduce the volume and reduce heat energy loss, and in order to meet the needs of all heating equipment being used at the same time, the heating mechanism must be made into a high-power type, and the high-power heating mechanism has higher energy consumption than the lower-power heating mechanism when only a small number of heating equipment are used. In addition, the heating water heater requires a small amount of electricity to work and needs to be installed in a place with a socket; the gas heating water heater with a heat recovery water storage tank uses a smaller power gas heating tank 1 for heating, and the heated water can be directly discharged or stored in the energy storage tank 2 for use in domestic hot water and heating equipment. A part of it is converted into electrical energy and stored in the battery 3. Through the control system and the energy management system, a part of the electrical energy in the battery 3 is used for daily household use such as charging, and the other part of the electrical energy is used to power the entire heat recovery device, so that energy can be recovered and stored most efficiently.

[0033] like Figure 1 The energy storage water tank 2 is divided into a cold water chamber 21, a hot water power generation chamber 22 and a hot water storage chamber 23 from the outside to the inside. A semiconductor thermoelectric power generation sheet 24 is installed in the partition layer between the cold water chamber 21 and the hot water power generation chamber 22. The semiconductor thermoelectric power generation sheet 24 is connected to the battery 3 through a wire.

[0034] As a result, a temperature difference is formed between the cold water chamber 21 and the hot water power generation chamber 22, and the semiconductor thermoelectric power generation sheet 24 generates electricity when there is a temperature difference on both sides, thereby converting thermal energy into electrical energy and storing it in the storage battery 3. (Thermoelectric power generation is a form of power generation that directly converts thermal energy into electrical energy using the Seeberk effect. The semiconductor thermoelectric power generation module can generate electricity as long as there is a temperature difference. It is noiseless and pollution-free during operation, has a long service life, and is maintenance-free.)

[0035] like Figure 1 There is a water flow channel between the cold water chamber 21, the hot water power generation chamber 22 and the bottom of the hot water storage chamber 23, and the semiconductor temperature difference power generation sheet 24 is installed on the side and bottom of the hot water power generation chamber 22.

[0036] Therefore, the semiconductor temperature difference power generation sheet 24 can generate electricity on the side and bottom of the hot water power generation chamber 22, thereby improving the heat energy recovery efficiency.

[0037] like Figure 1 The side wall of the cold water chamber 21 is provided with a cooling water inlet 211 and a cooling water outlet 212, and the gas heating chamber 1 is provided with a heating water inlet 11 and a heating water outlet 12. The cooling water inlet 211 is connected to the tap water pipe through a water pipe, and the cooling water outlet 212 is connected to the heating water inlet 11 through a water pipe.

[0038] Therefore, tap water with a relatively low temperature is always present in the cold water chamber 21 and is transported to the gas heating chamber 1 through a water pipe for heating.

[0039] like Figure 1 The tops of the hot water power generation chamber 22 and the hot water storage chamber 23 are covered by a thermal insulation layer 25 .

[0040] Thus, hot water is stored in the hot water power generation chamber 22 and the hot water storage chamber 23 , and the use of the thermal insulation layer 25 can reduce energy loss and improve heat recovery efficiency. The thermal insulation layer 25 uses thermal insulation materials such as foam.

[0041] like Figure 1 A hot water inlet 221 is provided on the top insulation layer 25 of the hot water power generation chamber 22 . The hot water inlet 221 is connected to the heating outlet 12 through a water pipe, and the water pipe passes through the hot water inlet 221 and is inserted into the bottom of the hot water power generation chamber 22 .

[0042] As a result, the temperature difference between the two sides of the semiconductor thermoelectric power generation sheet 24 is large, and the power generation effect is better (as the temperature difference decreases, the voltage and current will also decrease accordingly); the water heated by the gas heating chamber 1 first enters the hot water power generation chamber 22, which can ensure that the temperature difference between the hot water power generation chamber 22 and the cold water chamber 21 is high enough to improve the power generation effect of the semiconductor thermoelectric power generation sheet 24.

[0043] like Figure 1A through hole 231 connected to the hot water power generation chamber 22 is opened on the side wall of the hot water storage chamber 23 , and the maximum height of the semiconductor temperature difference power generation sheet 24 does not exceed the height of the through hole 231 .

[0044] Therefore, when the water level in the hot water power generation chamber 22 rises to the height of the flow hole 231, the hot water in the hot water power generation chamber 22 will flow into the hot water storage chamber 23 through the flow hole 231, so that the hot water is kept warm in the hot water storage chamber 23 and can be used for washing pots, pans, etc.; and the height of the flow hole 231 is higher than the height of the semiconductor temperature difference power generation chip 24, which can ensure that the water in the hot water power generation chamber 22 completely covers the semiconductor temperature difference power generation chip 24 before entering the hot water storage chamber 23, so as to ensure that the thermal energy of the water can be efficiently converted into electrical energy and stored first, thereby reducing the energy loss caused by the natural heat dissipation of the water.

[0045] like Figure 1 The top insulation layer 25 of the hot water storage chamber 23 is provided with a circulating heating water outlet 232 and a hot water supply outlet 233. The circulating heating water outlet 232 is connected to the heating water inlet 11 through a water pipe and a three-way valve, and the hot water supply outlet 233 is connected to a cleaning sink or other device using hot water through a water pipe; the water pipes of the two water inlets are respectively inserted into the bottom of the hot water storage chamber 23.

[0046] Therefore, when the water in the hot water power generation chamber 22 and the hot water storage chamber 23 is full, the control system cuts off the water outlet from the cooling water outlet 212 and replaces it with the circulating heating outlet 232, so that the water in the hot water storage chamber 23 flows through the gas heating tank 1 for heating and then flows back to the hot water power generation chamber 22, thereby realizing water circulation and maintaining a higher water temperature in the hot water power generation chamber 22 and the hot water storage chamber 23.

[0047] like Figure 1 A liquid level switch 234 is installed in the hot water storage chamber 23, and the liquid level switch 234 is a double-sensing type for upper and lower liquid levels.

[0048] Therefore, the liquid level switch 234 is used to detect the water level in the hot water storage chamber 23; when the cooling water outlet 212 continuously discharges water so that the water level in the hot water storage chamber 23 reaches a high level, the liquid level switch 234 senses the upper liquid level, and cuts off the water discharge from the cooling water outlet 212 through the control system, and replaces it with the circulating heating outlet 232 to prevent water overflow and maintain the water temperature; when the hot water supply outlet 233 transports water to the outside, the water storage amount in the hot water storage chamber 23 will be reduced. When the water level in the hot water storage chamber 23 reaches a low level, the liquid level switch 234 senses the lower liquid level, and cuts off the hot water supply outlet 233 through the control system to continue to supply water to the outside.

[0049] like Figure 1The water pipes connected to the cooling water outlet 212, the circulating heating outlet 232 and the hot water supply outlet 233 are respectively installed with a water pump 26 and a one-way valve 27. The one-way valve 27 is connected in series to the outlet of the water pump 26 to block the water in the water pipe from flowing back to the cooling water outlet 212, the circulating heating outlet 232 and the hot water supply outlet 233.

[0050] Therefore, if the energy storage water tank 2 is installed at a lower position, the water pump 26 is used to transport the water in the energy storage water tank 2 to a higher position; the water pumps 26 are all low-power pumps, and keeping water at the water inlet and outlet can extend the service life, so the use of the one-way valve 27 can not only prevent backflow but also ensure the service life of the water pump 26; in addition, the electricity used by the water pump 26 is supplied by the battery 3 to achieve self-sufficiency, and the speed of the water pump 26 can be controlled by the control system and the energy management system to meet the efficient recovery and storage of energy.

[0051] The above-described embodiments are only descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. Gas-fired heating water boiler with heat recovery water storage tank, characterized by: The invention comprises a gas heating chamber (1), an energy storage water tank (2) and a storage battery (3); a gas burner and a heat exchanger are arranged inside the gas heating chamber (1) for heating cold water; the energy storage water tank (2) and the gas heating chamber (1) are connected via a water pipe for storing heated water; the storage battery (3) and the energy storage water tank (2) are connected via a wire for storing electrical energy converted from the heat energy of the energy storage water tank (2); the storage battery (3) is used to supply power to the gas heating water boiler with a heat recovery water storage chamber; The energy storage water tank (2) is divided from the outside to the inside into a cold water chamber (21), a hot water power generation chamber (22) and a hot water storage chamber (23); a semiconductor thermoelectric power generation sheet (24) is installed in the partition layer between the cold water chamber (21) and the hot water power generation chamber (22); the semiconductor thermoelectric power generation sheet (24) is connected to the storage battery (3) via a wire; The side wall of the cold water chamber (21) is provided with a cooling water inlet (211) and a cooling water outlet (212); the gas heating chamber (1) is provided with a heating water inlet (11) and a heating water outlet (12); the cooling water inlet (211) is connected to a tap water pipe via a water pipe, and the cooling water outlet (212) is connected to the heating water inlet (11) via a water pipe; The tops of the hot water power generation chamber (22) and the hot water storage chamber (23) are covered by a thermal insulation layer (25); The insulation layer (25) at the top of the hot water power generation chamber (22) is provided with a hot water inlet (221), the hot water inlet (221) is connected to the heating outlet (12) via a water pipe, and the water pipe passes through the hot water inlet (221) and is then inserted into the bottom of the hot water power generation chamber (22); The side wall of the hot water storage chamber (23) is provided with a flow hole (231) connected to the hot water power generation chamber (22), and the maximum height of the semiconductor temperature difference power generation sheet (24) does not exceed the height of the flow hole (231).

2. The gas heating water heater with heat recovery water storage tank according to claim 1 is characterized in that: The thermal insulation layer (25) at the top of the hot water storage chamber (23) is provided with a circulating heating water outlet (232) and a hot water supply outlet (233); the circulating heating water outlet (232) is connected to the heating water inlet (11) via a water pipe and a three-way valve; the hot water supply outlet (233) is connected to a washing sink or other device using hot water via a water pipe; the water pipes of the two water inlets are respectively inserted into the bottom of the hot water storage chamber (23).

3. The gas heating water heater with heat recovery water storage tank according to claim 2 is characterized in that: A liquid level switch (234) is installed in the hot water storage chamber (23), and the liquid level switch (234) is a dual-sensing type for upper and lower liquid levels.

4. The gas heating water heater with heat recovery water storage tank according to claim 3 is characterized in that: The water pipes connected to the cooling water outlet (212), the circulating heating outlet (232) and the hot water supply outlet (233) are respectively installed with a water pump (26) and a one-way valve (27); the one-way valve (27) is connected in series to the outlet of the water pump (26) to prevent the water in the water pipe from flowing back to the cooling water outlet (212), the circulating heating outlet (232) and the hot water supply outlet (233).

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