Water heat storage boiler equipment

Abstract

The invention discloses water heat storage boiler equipment which comprises a controller, a heat storage device and a circulating pump. The controller receives data of the sensor and controls operation of other parts. The capacity of a heat storage tank of the heat storage device is 1-5 tons, and an electric heater, a water temperature sensor, an overtemperature power-off switch and the like are arranged in the heat storage tank. And the circulating pump realizes accurate indoor temperature control according to feedback adjustment of the sensor. The equipment can also be equipped with a solar heating device and a photovoltaic power generation system, and has the functions of automatic water replenishing, water level display, flow pressure monitoring and the like. Through night off-peak electricity energy storage and multi-energy cooperation, efficient, energy-saving and stable heating can be achieved, the cost is reduced, and remote control and intelligent optimization of operation parameters can be achieved.

Description

Technical Field

[0001] The invention relates to heating equipment, in particular to water heat storage boiler equipment. Background Art

[0002] Traditional heating equipment has problems such as low energy efficiency, high cost and great impact on the environment. For example, some boilers that use coal as energy will emit a large amount of pollutants during the combustion process. At the same time, with the fluctuation of energy prices, the heating cost is difficult to control stably. Relying solely on solar heating is greatly affected by weather and day and night changes, and cannot guarantee continuous and stable heating. Therefore, it is of great practical significance to develop a heating equipment that is efficient, energy-saving, environmentally friendly and can operate stably. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a water heat storage boiler equipment, which makes full use of the low-price off-peak electricity at night to heat and store energy in a large-capacity heat storage tank, and uses the heat energy stored in the heat storage tank to circulate heating indoors throughout the day, thereby achieving efficient, energy-saving and stable heating, while improving energy utilization efficiency and reducing heating costs.

[0004] The technical solution of the present invention is implemented as follows: a water heat storage boiler device includes a controller, a heat storage device and a circulation pump.

[0005] The controller includes a single chip microcomputer, a power module and a display. It serves as the control core of the entire device, receives data from various sensors, and controls the operation of other components according to preset rules.

[0006] The heat storage device comprises a heat storage tank with a capacity of 1-5 tons, wherein one or more electric heaters, a water temperature sensor electrically connected to a controller, and an over-temperature power-off switch are arranged inside the heat storage tank, each electric heater comprises one or more electric heating rods, each electric heating rod is connected to a power source through an electric heating rod relay, and each electric heating rod relay is controlled to be turned on and off by the controller; the water temperature sensor monitors the water temperature in the heat storage tank in real time and feeds back the data to the controller; the over-temperature power-off switch turns off the main power supply of the electric heater and stops electric heating when the controller fails and the water temperature in the heat storage tank exceeds the vaporization temperature.

[0007] A circulation pipeline consisting of a water supply pipe and a return pipe is connected between the heat storage tank and the indoor radiator, and a room temperature sensor electrically connected to a controller is arranged indoors; a circulation pump electrically connected to the controller is connected to the water supply pipe and is used to circulate the hot water in the heat storage tank to the radiator for indoor heating; the start and stop of the circulation pump is dynamically adjusted according to the feedback information of the water temperature sensor and the room temperature sensor to achieve precise control of the indoor temperature.

[0008] Preferably, the present invention also includes a solar heating device, which includes a heat collecting pipe, a plurality of vacuum heat absorbing pipes, a fan, a cold air pipe, a hot air pipe and an air-water plate exchanger, the pipe ends of the plurality of vacuum heat absorbing pipes are connected in parallel to the heat collecting pipe, the water circulation side of the air-water plate exchanger is connected to a heat storage tank, the cold air pipe, the heat collecting pipe, the hot air pipe and the air-water plate exchanger are connected in a closed loop or openly, and the fan is connected to the cold air pipe or the hot air pipe; when the connection is open, the cold air pipe is disconnected indoors, the cold air pipe draws indoor air, and the hot air from the hot air pipe passes through the air-water plate exchanger to heat the indoor room.

[0009] Preferably, a main air blowing pipe connected to the cold air pipe is provided in the heat collecting pipe, the main air blowing pipe is connected to a branch air blowing pipe extending into each vacuum heat absorbing pipe, the branch air blowing pipe blows air into the vacuum heat absorbing pipe to blow the hot air inside the vacuum heat absorbing pipe out to the heat collecting pipe.

[0010] Preferably, an air temperature sensor electrically connected to the controller is provided in the heat collecting tube, and the controller dynamically adjusts the start and stop of the fan according to feedback information from the air temperature sensor and the room temperature sensor.

[0011] Preferably, the present invention also includes a photovoltaic power generation system, which includes a photovoltaic controller, a photovoltaic power generation panel, a reversing switch and an inverter. The photovoltaic controller includes a single-chip microcomputer, a DC input module, and a DC output module. The DC input module is connected to the photovoltaic power generation panel, and the DC output module is connected to the fan and the inverter through the reversing switch. The 220V AC output of the inverter is connected to the power grid.

[0012] Preferably, the controller also includes a communication module, which uploads the data collected by the controller to a server or a user's mobile phone, thereby realizing remote control on the one hand, and on the other hand, the server collects a large amount of operating data and optimizes the operating control parameters through AI intelligent calculations.

[0013] Preferably, the upper part of the heat storage tank is connected to tap water through a water-full automatic stop valve for automatic water replenishment; Preferably, a water level sensor connected to the controller is provided inside the heat storage tank, and the water level can be displayed on a display of the controller.

[0014] Preferably, a flow sensor and a pressure sensor are provided on the water supply pipe, and the flow sensor and the pressure sensor are electrically connected to the controller for displaying the flow rate and pressure of the circulating water.

[0015] Preferably, the heat storage tank is composed of one or more tank bodies connected in parallel, and an automatic air release valve is arranged at the upper part of each tank body to automatically discharge the gas accumulated in the upper part of the tank body; a drain pipe is arranged at the lower part of each tank body.

[0016] Working principle: 1. Heat storage stage: During the off-peak hours at night, the controller's single-chip microcomputer determines the number of electric heating rods to be started based on the preset time and electricity price information, controls the electric heating rod relay to close, and starts the electric heating rod to heat the water in the heat storage tank. The water temperature sensor monitors the water temperature in real time and feeds the data back to the controller. When the water temperature reaches the set upper limit, the controller controls the electric heating rod relay to disconnect and stop heating. If the controller fails and the water temperature in the heat storage tank exceeds the vaporization temperature, the over-temperature power-off switch will automatically shut down the main power supply of the electric heater to prevent danger.

[0017] 2. Heating stage: The indoor room temperature sensor monitors the indoor temperature in real time and transmits the data to the controller. At the same time, the water temperature sensor continuously monitors the water temperature in the heat storage tank. When the indoor temperature is lower than the set lower limit and the water temperature in the heat storage tank is sufficient, the controller controls the circulation pump to start and transport the hot water in the heat storage tank to the indoor radiator through the water supply. After the hot water dissipates heat in the radiator, it flows back to the heat storage tank through the return pipe to achieve circulating heating. As the heating progresses, when the indoor temperature reaches the set upper limit or the water temperature in the heat storage tank is lower than a certain value, the controller controls the circulation pump to stop working.

[0018] 3. Solar heating stage (if equipped with solar heating device): When there is sunshine during the day, the vacuum heat absorption tube absorbs solar energy and transfers heat to the heat collecting tube. When the air temperature sensor in the heat collecting tube detects that the temperature rises and the indoor temperature is lower than the set value, the controller controls the fan to start according to the feedback information of the air temperature sensor and the room temperature sensor. In the closed loop connection, the hot air circulates in the cold air pipe, the heat collecting tube, the hot air pipe and the air-water plate exchanger, and transfers the heat to the water in the heat storage tank through the air-water plate exchanger. In the open connection, the fan draws indoor air into the cold air pipe. After the air is heated in the heat collecting tube, it passes through the air-water plate exchanger. On the one hand, it heats the water in the heat storage tank, and on the other hand, the hot air enters the room again to assist heating.

[0019] 4. Photovoltaic power generation stage (if equipped with a photovoltaic power generation system): The photovoltaic panels generate direct current under light conditions, and the direct current is input into the direct current input module of the photovoltaic controller. According to system requirements, the photovoltaic controller outputs direct current to the fan through the reversing switch. In the heating season, the photovoltaic power generation system is synchronized with the light, electricity and heat of the solar vacuum heat absorption tube, and the direct current output by the photovoltaic controller is connected to the fan through the reversing switch. In the non-heating season, the direct current output by the photovoltaic controller is connected to the inverter through the reversing switch, and the 220V AC output by the inverter is connected to the power grid.

[0020] Compared with the prior art, the beneficial effects of the present invention include: 1. Energy saving and high efficiency: Using low-priced valley electricity at night to store heat, fully utilizing the peak-valley price difference of electricity resources, reducing heating costs. At the same time, the addition of solar heating devices, using solar energy to assist heating during the day, further improves energy efficiency and reduces dependence on traditional energy.

[0021] 2. Stable heating: The large-capacity heat storage tank can store enough heat energy to continue to provide stable heating for the room even after the off-peak electricity season ends at night or when there is insufficient solar energy, without being overly affected by energy supply time and weather.

[0022] 3. Safe and reliable: When the controller fails and the water temperature is too high, the over-temperature power-off switch can automatically cut off the power supply of the electric heater to prevent the water in the thermal storage tank from vaporizing and causing safety accidents. The automatic air release valve promptly discharges the gas accumulated on the upper part of the tank to avoid air blockage affecting the system operation; the water full stop valve and water level sensor ensure the stability of the water level in the thermal storage tank, improving the safety and reliability of equipment operation.

[0023] 4. Intelligent control: The controller integrates a communication module to achieve remote control. Users can monitor the operating status of the equipment and adjust the heating parameters at any time through their mobile phones. After the server collects a large amount of operating data, it optimizes the operating control parameters through AI intelligent calculation, making the equipment operation more intelligent and efficient.

[0024] 5. Diverse functions: The equipment is equipped with flow sensors and pressure sensors, which can monitor the flow and pressure of circulating water in real time, making it convenient for users to understand the operating status of the system. The photovoltaic power generation system can not only power the wind turbine, but also integrate the excess electricity into the power grid to achieve comprehensive utilization of energy. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 This is a schematic structural diagram of a water heat storage boiler device according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the structure and connection relationship of the controller in Example 1 of the present invention; Figure 3 This is a schematic structural diagram of a water heat storage boiler device according to Embodiment 2 of the present invention; Figure 4 A schematic diagram of the structure and connection relationship of the controller in Example 2 of the present invention; Figure 5 This is a schematic structural diagram of a water heat storage boiler device according to Embodiment 3 of the present invention; Figure 6 Schematic diagram of the structure and connection relationship of the controller of Example 3 of the present invention.

[0025] In the figure: 1 controller, 2 circulation pump, 3 heat storage tank, 4 electric heating rod, 5 water temperature sensor, 6 over-temperature power off switch, 7 water supply pipe, 8 return pipe, 9 room temperature sensor, 10 water full automatic stop valve, 11 water level sensor, 12 flow sensor, 13 pressure sensor, 14 automatic air release valve, 15 drainage pipe, 16 heat collecting pipe, 17 vacuum heat absorption pipe, 18 fan, 19 cold air pipe, 20 hot air pipe, 21 air-water plate exchange, 22 main air blowing pipe, 23 branch air blowing pipe, 24 air temperature sensor, 25 photovoltaic controller, 26 photovoltaic power generation panel, 27 reversing switch, 28 inverter, 29 radiator. DETAILED DESCRIPTION

[0026] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0027] Example 1: Figure 1 and Figure 2 As shown, a water heat storage boiler device includes a controller 1, a heat storage device and a circulation pump 2.

[0028] The controller 1 includes a single-chip microcomputer, a power module and a display. The single-chip microcomputer input circuit is connected to a water temperature sensor 5, a room temperature sensor 9, a water level sensor 11, a flow sensor 12, and a pressure sensor 13. The single-chip microcomputer control circuit is connected to six electric heating rod relays and a circulating pump relay; it serves as the control core of the entire device, receives data from various sensors, and controls the operation of other components according to preset rules.

[0029] The heat storage device includes a heat storage tank 3 with a capacity of 1 ton, two electric heaters with a power of 9KW, a water temperature sensor 5 electrically connected to a controller 1, and an over-temperature power-off switch 6 are arranged inside the heat storage tank 3. Each electric heater includes three electric heating rods 4, each of which has a power of 3KW. Each electric heating rod 4 is connected to a power supply through an electric heating rod relay, and each electric heating rod relay is controlled to be turned on and off by the controller 1; the water temperature sensor 5 monitors the water temperature in the heat storage tank 3 in real time and feeds back the data to the controller 1; the over-temperature power-off switch 6 turns off the main power of the electric heater and stops electric heating when the controller 1 fails and the water temperature in the heat storage tank 3 exceeds the vaporization temperature. A circulation pipeline consisting of a water supply pipe 7 and a return pipe 8 is connected between the heat storage tank 3 and the indoor radiator 29, and a room temperature sensor 9 electrically connected to the controller 1 is arranged indoors; the circulation pump 2 is connected to the water supply pipe 7 and is used to circulate the hot water in the heat storage tank 3 to the radiator 29 for indoor heating; the circulation pump 2 electrically connected to the controller 1 is started and stopped dynamically according to the feedback information of the water temperature sensor 5 and the room temperature sensor 9 to achieve precise control of the indoor temperature.

[0030] The upper part of the heat storage tank 3 is connected to tap water through a water-full automatic stop valve 10 for automatic water replenishment; a water level sensor 11 connected to the controller 1 is provided inside the heat storage tank 3, and the water level can be displayed on the display of the controller 1. A flow sensor 12 and a pressure sensor 13 are provided on the water supply pipe 7, and the flow sensor 12 and the pressure sensor 13 are electrically connected to the controller 1 to display the flow and pressure of the circulating water. The heat storage tank 3 is composed of a tank body, and an automatic air release valve 14 is provided on the upper part of the tank body to automatically discharge the gas accumulated on the upper part of the tank body; a drain pipe 15 is provided at the lower part of the tank body.

[0031] Example 2: Figure 3 and Figure 4 As shown, a water heat storage boiler device includes a controller 1, a heat storage device and a circulation pump 2.

[0032] The controller 1 includes a single-chip microcomputer, a power module, a display and a communication module. The single-chip microcomputer input circuit is connected to a water temperature sensor 5, a room temperature sensor 9, an air temperature sensor 24, a water level sensor 11, a flow sensor 12 and a pressure sensor 13. The single-chip microcomputer control circuit is connected to six electric heating rod relays, a circulating pump relay and a fan relay. It serves as the control core of the entire device, receives data from various sensors, and controls the operation of other components according to preset rules.

[0033] The heat storage device includes a heat storage tank 3 with a capacity of 2 tons formed by two parallel tanks, two electric heaters with a power of 12KW, a water temperature sensor 5 electrically connected to a controller 1, and an over-temperature power-off switch 6 are arranged inside one of the tanks, each electric heater includes three electric heating rods 4, each electric heating rod 4 has a power of 4KW, each electric heating rod 4 is connected to a power supply through an electric heating rod relay, and each electric heating rod relay is controlled to be turned on and off by the controller 1; the water temperature sensor 5 monitors the water temperature in the heat storage tank 3 in real time and feeds back the data to the controller 1; the over-temperature power-off switch 6 turns off the main power of the electric heater and stops electric heating when the controller 1 fails and the water temperature of the heat storage tank 3 exceeds the vaporization temperature. A circulation pipeline consisting of a water supply pipe 7 and a return pipe 8 is connected between the heat storage tank 3 and the indoor radiator 29, and a room temperature sensor 9 electrically connected to the controller 1 is arranged indoors; the circulation pump 2 is connected to the water supply pipe 7 and is used to circulate the hot water in the heat storage tank 3 to the radiator 29 for indoor heating; the start and stop of the circulation pump 2 electrically connected to the controller 1 is dynamically adjusted according to the feedback information of the water temperature sensor 5 and the room temperature sensor 9 to achieve precise control of the indoor temperature.

[0034] The upper part of one tank body of the heat storage tank 3 is connected to tap water through a water-full automatic stop valve 10 for automatic water replenishment; a water level sensor 11 connected to the controller 1 is provided inside one tank body of the heat storage tank 3, and the water level can be displayed on the display of the controller 1. A flow sensor 12 and a pressure sensor 13 are provided on the water supply pipe 7, and the flow sensor 12 and the pressure sensor 13 are electrically connected to the controller 1 to display the flow and pressure of the circulating water. An automatic air release valve 14 is provided on the upper part of each tank body of the heat storage tank 3 to automatically discharge the gas accumulated in the upper part of the tank body; a drain pipe 15 is provided at the lower part of each tank body of the heat storage tank 3.

[0035] The water heat storage boiler equipment also includes a solar heating device, which includes a heat collecting pipe 16, a plurality of vacuum heat absorbing pipes 17, a fan 18, a cold air pipe 19, a hot air pipe 20 and an air-water plate exchanger 21. The pipe ends of the plurality of vacuum heat absorbing pipes 17 are connected in parallel to the heat collecting pipe 16, the water circulation side of the air-water plate exchanger 21 is connected to the heat storage tank 3, the cold air pipe 19, the heat collecting pipe 16, the hot air pipe 20 and the air-water plate exchanger 21 are connected in a closed loop, and the fan 18 is connected to the cold air pipe 19; a main air blowing pipe 22 connected to the cold air pipe 19 is arranged in the heat collecting pipe 16, and the main air blowing pipe 22 is connected to a branch air blowing pipe 23 extending into each vacuum heat absorbing pipe 17. Under the action of the fan 18, the branch air blowing pipe 23 blows air into the vacuum heat absorbing pipe 17 to blow the hot air inside the vacuum heat absorbing pipe 17 out to the heat collecting pipe 16, and then blows into the hot air pipe 20 to heat the water in the heat storage tank 3 through the air-water plate exchanger 21.

[0036] The communication module uploads the data collected by the controller 1 to the server or the user's mobile phone, which realizes remote control on the one hand, and on the other hand, the server collects a large amount of operation data and optimizes the operation control parameters through AI intelligent calculation.

[0037] Example 3: Figure 5 and Figure 6 As shown, a water heat storage boiler device, the technical solution of which is mostly the same as that of embodiment 2, and the difference is that: It also includes a photovoltaic power generation system, which includes a photovoltaic controller 25, a photovoltaic power generation panel 26, a reversing switch 27 and an inverter 28. The photovoltaic controller 25 includes a single-chip microcomputer, a DC input module, and a DC output module. The DC input module is connected to the photovoltaic power generation panel 26, and the DC output module is connected to the fan 18 and the inverter 28 through the reversing switch 27. The 220V AC output of the inverter 28 is connected to the power grid.

[0038] In the heating season, the DC power output by the photovoltaic controller 25 supplies power to the fan through the reversing switch 27. Since the photovoltaic power generation system is synchronized with the light, electricity and heat of the solar vacuum heat absorption tube 17, the start and stop and speed of the fan 18 do not need to be controlled by the controller 1, but are directly controlled by the photovoltaic power generation system.

[0039] In the non-heating season, the direct current output by the photovoltaic controller 25 is connected to the inverter 28 through the reversing switch 27, and the 220V alternating current output by the inverter 28 is connected to the power grid.

[0040] The cold air pipe 19, the heat collecting pipe 16, the hot air pipe 20 and the air-water exchanger 21 of the solar heating device are openly connected. The cold air pipe 19 is disconnected indoors. The cold air pipe 19 draws indoor air, and the hot air from the hot air pipe 20 passes through the air-water exchanger 21 to heat the room.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A water heat storage boiler device, comprising a controller (1), a heat storage device and a circulation pump (2), characterized in that: The controller (1) comprises a single chip microcomputer, a power module and a display; the heat storage device comprises a heat storage tank (3) with a capacity of 1 to 5 tons, wherein one or more electric heaters, a water temperature sensor (5) electrically connected to the controller (1), and an over-temperature power-off switch (6) are arranged inside the heat storage tank (3); each electric heater comprises one or more electric heating rods (4); each electric heating rod (4) is connected to a power supply via an electric heating rod relay, and each electric heating rod relay is controlled to be turned on and off by the controller (1); a circulation pipeline composed of a water supply pipe (7) and a return pipe (8) is connected between the heat storage tank (3) and an indoor radiator, and a room temperature sensor (9) electrically connected to the controller (1) is arranged indoors; and a circulation pump (2) electrically connected to the controller (1) is installed on the water supply pipe (7).

2. The water thermal storage boiler equipment according to claim 1, characterized in that: The solar heating device also includes a solar heating device, which includes a heat collecting pipe (16), a plurality of vacuum heat absorbing pipes (17), a fan (18), a cold air pipe (19), a hot air pipe (20) and an air-water plate exchanger (21). The pipe ends of the plurality of vacuum heat absorbing pipes (17) are connected in parallel to the heat collecting pipe (16). The water circulation side of the air-water plate exchanger (21) is connected to a heat storage tank (3). The cold air pipe (19), the heat collecting pipe (16), the hot air pipe (20) and the air-water plate exchanger (21) are connected in a closed loop or in an open loop. The fan (18) is connected to the cold air pipe (19) or the hot air pipe (20).

3. The water thermal storage boiler equipment according to claim 2, characterized in that: A main air blowing pipe (22) connected to the cold air pipe (19) is arranged in the heat collecting pipe (16), and the main air blowing pipe (22) is connected to a branch air blowing pipe (23) extending into each vacuum heat absorbing pipe (17).

4. The water thermal storage boiler equipment according to claim 3, characterized in that: An air temperature sensor (24) electrically connected to the controller (1) is arranged in the heat collecting tube (16).

5. The water thermal storage boiler equipment according to claim 4, characterized in that: It also includes a photovoltaic power generation system, which includes a photovoltaic controller (25), a photovoltaic power generation panel (26), a reversing switch (27) and an inverter (28). The photovoltaic controller (25) includes a single-chip microcomputer, a direct current input module, and a direct current output module. The direct current input module is connected to the photovoltaic power generation panel (26). The direct current output module is connected to the fan (18) and the inverter (28) through the reversing switch (27). The 220V AC output of the inverter (28) is connected to the power grid.

6. The water thermal storage boiler equipment according to any one of claims 1 to 5, characterized in that: The controller (1) also includes a communication module.

7. The water thermal storage boiler equipment according to any one of claims 1 to 5, characterized in that: The upper part of the heat storage tank (3) is connected to tap water via a water full stop valve (10).

8. The water thermal storage boiler equipment according to any one of claims 1 to 5, characterized in that: A water level sensor (11) connected to the controller (1) is provided inside the heat storage tank (3).

9. The water thermal storage boiler equipment according to any one of claims 1 to 5, characterized in that: A flow sensor (12) and a pressure sensor (13) are arranged on the water supply pipe (7), and the flow sensor (12) and the pressure sensor (13) are electrically connected to the controller (1).

10. The water thermal storage boiler equipment according to any one of claims 1 to 5, characterized in that: The heat storage tank (3) is composed of one or more tank bodies connected in parallel, and an automatic air release valve (14) is arranged at the top of each tank body; and a drainage pipe (15) is arranged at the bottom of each tank body.

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