Water heat storage boiler equipment

Abstract

The utility model 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 utility model relates to a kind of heating equipment, especially a kind of water heat storage boiler equipment. BACKGROUND

[0002] Traditional heating equipment has problems such as low energy utilization efficiency, high cost and great impact on the environment. For example, some boilers using coal as fuel emit a large amount of pollutants during combustion, and the heating cost is difficult to control stably with the fluctuation of energy prices. Purely relying on solar heating is greatly affected by weather and day-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

[0003] The utility model aims at overcoming the shortcomings of prior art, and provides a water heat storage boiler equipment, which fully utilizes 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 and heat indoor all day long, achieving efficient, energy-saving and stable heating, improving energy utilization efficiency and reducing heating cost.

[0004] The technical solution of the utility model is realized as follows: a water heat storage boiler equipment includes a controller, a heat storage device and a circulating pump.

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

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

[0007] A circulating pipeline composed of a water supply pipe and a return water pipe is connected between the heat storage tank and the indoor radiator, and a room temperature sensor electrically connected to the controller is arranged indoors. The circulating pump electrically connected to the controller is connected to the water supply pipe to circulate and deliver hot water in the heat storage tank to the radiator to heat the indoor. The start and stop of the circulating pump are dynamically adjusted according to the feedback information of the water temperature sensor and the room temperature sensor to realize accurate control of the indoor temperature.

[0008] Preferably, the utility model still includes solar heating device, it includes heat collection pipe, a plurality of vacuum heat absorption pipe, fan, cold air pipe, hot air pipe and air water plate exchange, the mouth end of a plurality of vacuum heat absorption pipe is connected in parallel on heat collection pipe, air water plate exchange water circulation side connects heat storage jar, cold air pipe, heat collection pipe, hot air pipe and air water plate exchange closed loop connection or open connection, fan is connected on cold air pipe or hot air pipe, when open connection, cold air pipe is disconnected in the room, cold air pipe inhales indoor air, hot air pipe hot air passes through air water plate exchange and then heats the room again.

[0009] Preferably, the main blowing pipe connected with the cold air pipe is arranged in the heat collection pipe, the main blowing pipe is connected with the branch blowing pipe extended into the inside of each vacuum heat absorption pipe, and the branch blowing pipe blows air into the vacuum heat absorption pipe to blow out the hot air in the vacuum heat absorption pipe to the heat collection pipe.

[0010] Preferably, the air temperature sensor connected with the controller is arranged in the heat collection pipe, and the controller dynamically adjusts the start and stop of the fan according to the feedback information of the air temperature sensor and the room temperature sensor.

[0011] Preferably, the utility model still includes photovoltaic power generation system, and the photovoltaic power generation system includes a photovoltaic controller, a photovoltaic power generation panel, a reversing switch and an inverter, the photovoltaic controller includes a single-chip microcomputer, a direct-current input module and a direct-current output module, the direct-current input module is connected with the photovoltaic power generation panel, the direct-current output module is connected with the fan and the inverter through the reversing switch, and the 220V alternating current output by the inverter is integrated into the power grid.

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

[0013] Preferably, the upper portion of the heat storage jar is connected with tap water through a water full automatic stop valve for automatic water replenishment.

[0014] Preferably, the water level sensor connected with the controller is arranged in the heat storage jar, and the water level can be displayed on the display of the controller.

[0015] Preferably, the flow sensor and the pressure sensor are arranged on the water supply pipe, and the flow sensor and the pressure sensor are electrically connected with the controller to display the flow and pressure of the circulating water.

[0016] Preferably, the heat storage jar is composed of one to multiple tank bodies connected in parallel, the automatic air release valve is arranged at the upper portion of each tank body for automatically discharging the gas accumulated at the upper portion of the tank body, and the drain pipe is arranged at the lower portion of each tank body.

[0017] Working principle: 1. Heat storage stage: in the night valley electricity period, the single-chip microcomputer of the controller determines the number of starting electric heating rods according to the preset time and electricity price information, controls the electric heating rod relay to close, so that the electric heating rod starts to work and heats the water in the heat storage tank. The water temperature sensor monitors the water temperature in real time and feeds back the data to the controller. When the water temperature reaches the set upper limit value, the controller controls the electric heating rod relay to open and stops heating. If the controller fails and the water temperature in the heat storage tank exceeds the gasification temperature, the over-temperature power-off switch will automatically turn off the total power supply of the electric heater to prevent danger.

[0018] 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 value and the water temperature in the heat storage tank is sufficient, the controller controls the circulating pump to start, and the hot water in the heat storage tank is delivered to the indoor radiator through the water supply pipe. After the heat is dissipated in the radiator, the hot water flows back to the heat storage tank through the return water pipe, realizing the circulating heating. With the heating, when the indoor temperature reaches the set upper limit value or the water temperature in the heat storage tank is lower than a certain value, the controller controls the circulating pump to stop working.

[0019] 3. Solar heating stage (if equipped with a solar heating device): during the day when there is sunlight, the vacuum heat absorption pipe absorbs solar energy and transfers the heat to the heat collection pipe. When the air temperature sensor in the heat collection pipe 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 collection pipe, the hot air pipe and the air-water plate exchanger, and the heat is transferred to the water in the heat storage tank through the air-water plate exchanger. In the open connection, the fan sucks indoor air into the cold air pipe, and the air is heated in the heat collection pipe and then passes through the air-water plate exchanger, which heats the water in the heat storage tank on one hand and heats the indoor air on the other hand to assist heating.

[0020] 4. Photovoltaic power generation stage (if equipped with a photovoltaic power generation system): the photovoltaic panel generates direct current under light conditions, and the direct current is input to the direct current input module of the photovoltaic controller. The photovoltaic controller outputs direct current to the fan through the reversing switch according to the system demand. In the heating season, the photovoltaic power generation system is synchronized with the light, electricity and heat of the solar vacuum heat absorption pipe, 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 alternating current output by the inverter is connected to the power grid.

[0021] Compared with the prior art, the beneficial effects of the utility model include:

[0022] 1. Energy-saving and efficient: Utilize low-price valley electricity at night for heat storage, fully utilize the peak-valley price difference of power resources, reduce the heating cost. At the same time, the addition of solar heating device, in the daytime, use solar energy to assist heating, further improve the energy utilization efficiency, reduce the dependence on traditional energy.

[0023] 2. Stable heating: Large-capacity heat storage tank can store enough heat energy, even in the case of insufficient solar energy after the end of night valley electricity, it can also provide stable heating for indoor, not affected by energy supply time and weather.

[0024] 3. Safe and reliable: Over-temperature power-off switch can automatically cut off the power supply of electric heater when the controller fails and the water temperature is too high, to prevent the water in the heat storage tank from vaporizing and causing safety accidents. The automatic air release valve timely discharges the gas accumulated in the upper part of the tank body to avoid gas resistance affecting the system operation; the water full stop valve and water level sensor ensure the stability of the water level in the heat storage tank, improve the safety and reliability of the equipment operation.

[0025] 4. Intelligent control: The controller integrates a communication module to realize remote control, users can monitor the equipment running status and adjust the heating parameters at any time through the mobile phone. After collecting a large amount of running data, the server optimizes the running control parameters through AI intelligent calculation, so that the equipment runs more intelligently and efficiently.

[0026] 5. Multiple functions: The device is equipped with flow and pressure sensors to monitor the flow and pressure of circulating water in real time, making it easy for users to understand the system operation status. The photovoltaic power generation system not only can power the fan, but also can integrate the excess power into the power grid, realizing comprehensive utilization of energy. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure schematic view of the water heat storage boiler equipment of the utility model embodiment 1;

[0028] Figure 2 It is a structure and connection relationship schematic view of the controller of the utility model embodiment 1;

[0029] Figure 3 It is a structure schematic view of the water heat storage boiler equipment of the utility model embodiment 2;

[0030] Figure 4 It is a structure and connection relationship schematic view of the controller of the utility model embodiment 2;

[0031] Figure 5 It is a structure schematic view of the water heat storage boiler equipment of the utility model embodiment 3;

[0032] Figure 6 It is a structure and connection relationship schematic view of the controller of the utility model embodiment 3.

[0033] Fig. 1: 1 controller, 2 circulating 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 water pipe, 9 room temperature sensor, 10 water full self-stop valve, 11 water level sensor, 12 flow sensor, 13 pressure sensor, 14 automatic air release valve, 15 drain pipe, 16 heat collecting pipe, 17 vacuum heat absorbing pipe, 18 fan, 19 cold air pipe, 20 hot air pipe, 21 air-water plate exchanger, 22 main air blowing pipe, 23 branch air blowing pipe, 24 air temperature sensor, 25 photovoltaic controller, 26 photovoltaic panel, 27 reversing switch, 28 inverter, 29 radiator. DETAILED DESCRIPTION

[0034] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and therefore only serve as examples, and cannot limit the protection scope of the utility model.

[0035] Embodiment 1: as shown in Figure 1 and Figure 2 , a water heat storage boiler device, comprising a controller 1, a heat storage device and a circulating pump 2.

[0036] The controller 1 comprises a single-chip microcomputer, a power module and a display, the single-chip microcomputer input circuit is connected with a water temperature sensor 5, a room temperature sensor 9, a water level sensor 11, a flow sensor 12 and a pressure sensor 13, and the single-chip microcomputer control circuit is connected with six electric heating rod relays and a circulating pump relay; it serves as the control core of the whole device, receives the data of various sensors, and controls the operation of other components according to the preset rules.

[0037] The heat storage device comprises a heat storage tank 3 with a capacity of 1 ton, two electric heaters with a power of 9 KW are arranged in the heat storage tank 3, a water temperature sensor 5 connected with the controller 1 and an over-temperature power-off switch 6, each electric heater comprises three electric heating rods 4, each electric heating rod 4 has a power of 3 KW, each electric heating rod 4 is connected with a power source through an electric heating rod relay, and each electric heating rod relay is controlled 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; when the controller 1 fails and the water temperature in the heat storage tank 3 exceeds the gasification temperature, the over-temperature power-off switch 6 closes the total power supply of the electric heater and stops the electric heating. A circulating pipeline composed of a water supply pipe 7 and a return water pipe 8 is connected between the heat storage tank 3 and an indoor radiator 29, and a room temperature sensor 9 connected with the controller 1 is arranged indoors; the circulating pump 2 is connected to the water supply pipe 7 and used for circulating and delivering the hot water in the heat storage tank 3 to the radiator 29 to heat the room; the start and stop of the circulating pump 2 connected with the controller 1 are dynamically adjusted according to the feedback information of the water temperature sensor 5 and the room temperature sensor 9, so as to realize the accurate control of the indoor temperature.

[0038] The upper part of the heat storage tank 3 is connected to tap water via a water-full automatic shut-off valve 10 for automatic water replenishment. A water level sensor 11 connected to the controller 1 is installed inside the heat storage tank 3, displaying the water level on the controller 1's display screen. A flow sensor 12 and a pressure sensor 13 are installed on the water supply pipe 7, electrically connected to the controller 1 to display the flow rate and pressure of the circulating water. The heat storage tank 3 consists of a tank body. An automatic vent valve 14 is installed at the upper part of the tank body to automatically discharge accumulated gas. A drain pipe 15 is installed at the lower part of the tank body.

[0039] Example 2: As Figure 3 and Figure 4 As shown, a water storage boiler includes a controller 1, a heat storage device, and a circulating pump 2.

[0040] The controller 1 includes a microcontroller, a power module, a display, and a communication module. The microcontroller's 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 microcontroller's control circuit is connected to six heating rod relays, a circulation pump relay, and a fan relay. As the control core of the entire device, it receives data from various sensors and controls the operation of other components according to preset rules.

[0041] The heat storage device includes a heat storage tank 3 with a capacity of 2 tons, consisting of two parallel tanks. Inside one of the tanks, there are two 12KW electric heaters, a water temperature sensor 5 electrically connected to the controller 1, and an over-temperature power-off switch 6. Each electric heater includes three heating rods 4, each with a power of 4KW. Each heating rod 4 is connected to the power supply through a heating rod relay, and each heating rod relay is controlled by the controller 1 to switch on and off. The water temperature sensor 5 monitors the water temperature in the heat storage tank 3 in real time and feeds the data back to the controller 1. When the controller 1 fails and the water temperature in the heat storage tank 3 exceeds the vaporization temperature, the over-temperature power-off switch 6 shuts off the main power supply to the electric heaters and stops electric heating. 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. A room temperature sensor 9 connected to the electrical connection controller 1 is installed indoors. The circulation pump 2 is connected to the water supply pipe 7 to circulate the hot water in the heat storage tank 3 to the radiator 29 to heat the room. The start and stop of the circulation pump 2 of the electrical connection controller 1 are 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.

[0042] The upper part of one tank body of the heat storage tank 3 is connected with tap water through a water full automatic stop valve 10 for automatic water replenishment; the inside of one tank body of the heat storage tank 3 is provided with a water level sensor 11 connected with the controller 1, which can display the water level on the display of the controller 1. 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 with the controller 1 for displaying the flow and pressure of the circulating water. An automatic air release valve 14 is arranged at the upper part of each tank body of the heat storage tank 3 for automatically discharging the gas accumulated at the upper part of the tank body; a drain pipe 15 is arranged at the lower part of each tank body of the heat storage tank 3.

[0043] The water heat storage boiler equipment further comprises a solar heating device, which comprises a heat collecting pipe 16, a plurality of vacuum heat absorption pipes 17, a fan 18, a cold air pipe 19, a hot air pipe 20 and an air-water plate exchanger 21, the pipe opening ends of the plurality of vacuum heat absorption pipes 17 are connected in parallel on the heat collecting pipe 16, the air-water plate exchanger 21 is connected with the heat storage tank 3 on the water circulation side, 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 with the cold air pipe 19; a main air blowing pipe 22 connected with the cold air pipe 19 is arranged in the heat collecting pipe 16, the main air blowing pipe 22 is connected with a branch air blowing pipe 23 extending into the inside of each vacuum heat absorption pipe 17, under the action of the fan 18, the branch air blowing pipe 23 blows air into the vacuum heat absorption pipe 17 to blow out the hot air in the inside of the vacuum heat absorption pipe 17 into 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.

[0044] The communication module uploads the data collected by the controller 1 to the server or the user's mobile phone, on the one hand to realize remote control, and on the other hand the server collects a large amount of operation data, optimizes the operation control parameters through AI intelligent calculation.

[0045] Embodiment 3: as shown in Figure 5 and Figure 6 A water heat storage boiler equipment, most of the technical solutions of which are the same as those of embodiment 2, and the different technical solution is that:

[0046] It further comprises a photovoltaic power generation system, which comprises a photovoltaic controller 25, a photovoltaic power generation panel 26, a reversing switch 27 and an inverter 28, the photovoltaic controller 25 comprises a single-chip microcomputer, a direct current input module and a direct current output module, the direct current input module is connected with the photovoltaic power generation panel 26, the direct current output module is connected with the fan 18 and the inverter 28 through the reversing switch 27, and the 220V alternating current output by the inverter 28 is connected with the power grid.

[0047] In the heating season, the direct current output by the photovoltaic controller 25 supplies power to the fan through the reversing switch 27, and since the photovoltaic power generation system is synchronous with the light, electricity and heat of the solar vacuum heat absorption pipe 17, the start and stop and the rotating 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.

[0048] In the non-heating season, the direct current outputted by the photovoltaic controller 25 is connected to the inverter 28 through the commutating switch 27, and the 220V alternating current outputted by the inverter 28 is integrated into the power grid.

[0049] The cold air pipe 19, the heat collecting pipe 16, the hot air pipe 20 and the air-water plate exchanger 21 of the solar heating device are open connected, the cold air pipe 19 is disconnected in the room, the cold air pipe 19 sucks the indoor air, and the hot air pipe 20 heats the room again after the hot air pipe 20 passes through the air-water plate exchanger 21.

[0050] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and 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 application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A water thermal storage boiler plant comprising a controller (1), a thermal 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 1-5 tons, a plurality of electric heaters arranged in the heat storage tank (3), a water temperature sensor (5) electrically connected to the controller (1), an over-temperature power-off switch (6), each electric heater comprising one or more electric heating rods (4), each electric heating rod (4) being connected to a power source through an electric heating rod relay, and each electric heating rod relay being controlled by the controller (1); a circulating pipeline comprising a water supply pipe (7) and a return water pipe (8) is connected between the heat storage tank (3) and an indoor radiator, and an indoor temperature sensor (9) electrically connected to the controller (1) is arranged indoors; and a circulating pump (2) electrically connected to the controller (1) is installed on the water supply pipe (7).

2. The water storage boiler plant according to claim 1, characterized in that The solar heating device comprises a heat collecting pipe (16), a plurality of vacuum heat absorption pipes (17), a fan (18), a cold gas pipe (19), a hot gas pipe (20) and a gas-water plate exchanger (21), the pipe mouth ends of the plurality of vacuum heat absorption pipes (17) are connected in parallel to the heat collecting pipe (16), the gas-water plate exchanger (21) is connected to the heat storage tank (3) on the water circulation side, the cold gas pipe (19), the heat collecting pipe (16), the hot gas pipe (20) and the gas-water plate exchanger (21) are connected in a closed loop or an open connection, and the fan (18) is connected to the cold gas pipe (19) or the hot gas pipe (20).

3. The water storage boiler plant according to claim 2, characterised in that A main air blowing pipe (22) connected to the cold gas 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 the inside of each vacuum heat absorption pipe (17).

4. The water storage boiler plant according to claim 3, characterized in that A gas temperature sensor (24) electrically connected to the controller (1) is arranged in the heat collecting pipe (16).

5. The water storage boiler plant according to claim 4, characterised in that The photovoltaic power generation system comprises a photovoltaic controller (25), a photovoltaic power generation panel (26), a changeover switch (27) and an inverter (28), the photovoltaic controller (25) comprises 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 changeover switch (27), and the inverter (28) outputs 220V alternating current to be connected to a power grid.

6. The water storage boiler arrangement according to any one of claims 1 to 5, characterized in that: The controller (1) further comprises a communication module.

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

8. The water storage boiler plant according to any one of claims 1 to 5, characterized by: A water level sensor (11) electrically connected to the controller (1) is arranged in the heat storage tank (3).

9. The water storage boiler arrangement 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 storage boiler arrangement 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, an automatic air release valve (14) is arranged at the upper part of each tank body, and a drain pipe (15) is arranged at the lower part of each tank body.

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