Energy storage device of new energy elevator

Abstract

An energy storage device of a new energy elevator comprises a hydrogen storage tank, a flow valve, a one-way valve, a switch control valve and a controller, the hydrogen storage tank is provided with an input port used for inputting hydrogen energy for storage and an output port used for outputting the hydrogen energy for operation of the new energy elevator, and the flow valve is connected with the output port through a pipeline. The hydrogen storage tank controls output through the flow valve, the switch control valve, the one-way valve and the input port are sequentially connected through a pipeline, and the one-way valve controls hydrogen energy to flow in the direction of entering the hydrogen storage tank in a one-way mode. The one-way valve and the switch control valve are arranged at the input port of the hydrogen storage tank, so that when the hydrogen storage tank is externally filled with hydrogen energy, the controller controls the switch control valve to be opened, at the moment, the hydrogen energy can be externally filled into the hydrogen storage tank, and under the one-way circulation effect of the one-way valve, the hydrogen energy in the hydrogen storage tank can be prevented from reversely flowing out; and the reliability and the safety of hydrogen energy filling are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of new energy elevator technology, specifically relating to an energy storage device for a new energy elevator. Background Technology

[0002] In urban construction, more and more high-rise buildings are rising, and correspondingly, the use of elevators is also increasing, putting increasing pressure on urban power supply. To address this issue, major elevator manufacturers are expanding their energy options and energy-saving technologies. Regarding energy selection, most elevator manufacturers are configuring elevators with new clean energy sources, such as solar, wind, and hydrogen energy. Compared to solar and wind energy, hydrogen energy is relatively easy to obtain, unaffected by external environmental factors, and has relatively high production stability. Therefore, using hydrogen energy as a power source is highly feasible for new energy elevators.

[0003] In the field of new energy elevators, since the technology of using hydrogen energy as a power source is still in its early stages, it is necessary to improve and develop various aspects of the elevator. In terms of hydrogen energy storage, how to stably store hydrogen energy and output it stably and efficiently is an important breakthrough direction for energy storage devices in new energy elevators. Therefore, it is necessary to develop energy storage devices for new energy elevators. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides an energy storage device for a new energy elevator.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An energy storage device for a new energy elevator includes a hydrogen storage tank, a flow valve, a check valve, a switch control valve, and a controller. The hydrogen storage tank has an input port for storing hydrogen energy and an output port for supplying hydrogen energy to the elevator. The flow valve is connected to the output port via a pipeline, and the hydrogen storage tank controls the output through the flow valve. The switch control valve, check valve, and input port are connected sequentially via pipelines. The check valve controls the unidirectional flow of hydrogen energy in the direction of entering the hydrogen storage tank. The flow valve and switch control valve are respectively connected to the controller via circuits, and the controller controls the operation of the flow valve and switch control valve. A heating device is provided on the outer periphery of the hydrogen storage tank for heating the hydrogen storage tank, and the heating device is connected to the controller via a circuit.

[0007] In this invention, the hydrogen storage tank includes an inner tank and an outer tank, the outer tank covering the outer periphery of the inner tank, and a closed area is formed between the outer tank and the inner tank.

[0008] In this utility model, the heating device includes a heater, a water pump, and a heating tube. The heater and the water pump are connected by a pipeline. One end of the heating tube is connected to the heater, and the other end passes through the outer tank and enters the enclosed area. After spirally winding along the outer wall of the inner tank, it exits the outer tank and is connected to the water pump.

[0009] In this invention, a temperature sensor is provided on the outer wall of the inner tank. The sensing end of the temperature sensor is in contact with the outer wall of the inner tank to sense the temperature of the outer wall of the inner tank. The temperature sensor is connected to the controller circuit.

[0010] In this invention, the bottom of the hydrogen storage tank is provided with a mobile cart, and the hydrogen storage tank is tied to the mobile cart by straps.

[0011] In this utility model, the mobile cart is provided with supporting ribs for supporting the hydrogen storage tank. The supporting ribs are provided with arc-shaped supporting surfaces adapted to the outer side wall of the hydrogen storage tank. The supporting ribs are in contact with the outer side wall of the hydrogen storage tank through the arc-shaped supporting surfaces.

[0012] In this invention, the hydrogen storage tank is also equipped with a pressure gauge for measuring the internal pressure of the hydrogen storage tank. The measuring end of the pressure gauge enters the interior of the inner tank, and the pressure gauge is connected to the controller circuit.

[0013] In this invention, the hydrogen storage tank is also equipped with a hydrogen sensor for monitoring whether there is hydrogen energy leakage in the inner tank. The monitoring end of the hydrogen sensor is located in a closed area, and the hydrogen sensor is connected to the controller circuit.

[0014] The beneficial effects of this utility model are as follows: By setting a one-way valve and a switch control valve at the inlet of the hydrogen storage tank, when hydrogen energy is added to the hydrogen storage tank from the outside, the controller controls the switch control valve to open, allowing hydrogen energy to be added to the hydrogen storage tank from the outside. Under the one-way flow action of the one-way valve, the reverse flow of hydrogen energy in the hydrogen storage tank can be prevented, ensuring the reliability and safety of hydrogen energy addition. By setting a flow valve at the outlet of the hydrogen storage tank, the controller controls the flow valve to open to a specified degree, so that the hydrogen energy in the hydrogen storage tank is output according to the energy required by the new energy elevator, ensuring the stable operation of the new energy elevator. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the connection of multiple energy storage devices in this embodiment;

[0016] Figure 2 This is a schematic diagram of the circuit connection of the controller in this embodiment;

[0017] Figure 3 This is a schematic diagram of the energy storage device in this embodiment;

[0018] Figure 4 This is a schematic diagram of the internal structure of the hydrogen storage tank in this embodiment. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] like Figures 1 to 4 As shown, this embodiment discloses an energy storage device for a new energy elevator, including a hydrogen storage tank 1, a flow valve 2, a one-way valve 3, a switch control valve 4, and a controller 5. The hydrogen storage tank 1 has an input port 11 for storing hydrogen energy and an output port 12 for outputting hydrogen energy to power the new energy elevator. The flow valve 2 is connected to the output port 12 via a pipeline, allowing the hydrogen storage tank 1 to output hydrogen energy under the control of the flow valve 2. The switch control valve 4, the one-way valve 3, and the input port 11 are connected sequentially via pipelines. The one-way valve 3 controls the unidirectional flow of hydrogen energy in the direction of entering the hydrogen storage tank 1. The flow valve 2 and the switch control valve 4 are respectively connected to the controller 5 via circuits. The controller 5 controls the operation of the flow valve 2 and the switch control valve 4. When hydrogen energy is added to the hydrogen storage tank 1 from the outside, the controller 5 controls the switch control valve 4 to open, allowing the outside to add hydrogen energy to the hydrogen storage tank 1. Under the unidirectional flow action of the one-way valve 3, it can prevent the hydrogen from overflowing. To prevent reverse flow of hydrogen energy from the hydrogen storage tank 1, ensuring the reliability and safety of hydrogen energy refueling; when the hydrogen energy from the hydrogen storage tank 1 is output to the new energy elevator for operation, the controller 5 controls the flow valve 2 to open to a specified degree, so that the hydrogen energy in the hydrogen storage tank 1 is output according to the energy required by the new energy elevator; in order to further improve the activity of hydrogen energy output and increase the utilization rate of hydrogen energy, a heating device 6 is provided on the outer periphery of the hydrogen storage tank 1. The heating device 6 is used to heat the hydrogen storage tank 1, thereby increasing the energy activity in the hydrogen storage tank 1. The heating device 6 is electrically connected to the controller 5, and the controller 5 controls the heating temperature of the heating device 6 for heating the hydrogen storage tank 1 within the range of 50℃ to 65℃. The energy activity of hydrogen energy is relatively high under this temperature environment, and the energy utilization rate of the output to the new energy elevator is relatively high. Therefore, heating the hydrogen storage tank 1 can improve the utilization rate of hydrogen energy and reduce energy consumption.

[0021] In this embodiment, the hydrogen storage tank 1 includes an inner tank 13 and an outer tank 14. The outer tank 14 covers the outer periphery of the inner tank 13, forming a closed area 15 between the outer tank 14 and the inner tank 13. The heating device 6 includes a heater 61, a water pump 62, and a heating pipe 63. The heater 61 and the water pump 62 are connected by a pipeline. One end of the heating pipe 63 is connected to the heater 61, and the other end passes through the outer tank 14 into the closed area 15. After spirally winding along the outer wall of the inner tank 13, it exits the outer tank 14 and connects to the water pump 62. Under the action of the water pump 62, the heated liquid flows in the heating pipe 63. The heater 61 heats the circulating liquid, keeping the liquid at a constant temperature. The heating pipe 63 spirally winds around the outer wall of the inner tank 13, transferring heat to the hydrogen energy in the inner tank 13, thereby improving the activity of the hydrogen energy. Furthermore, to precisely control the heating temperature of the hydrogen energy, a temperature sensor 7 is provided on the outer wall of the inner tank 13. The sensing end of the temperature sensor 7 is in contact with the outer wall of the inner tank 13 to sense the temperature of the outer wall of the inner tank 13. The temperature sensor 7 is circuitically connected to the controller 5. When the controller 5 controls the heating device 6 to heat hydrogen energy, the temperature sensor 7 will feed back a temperature signal to the controller 5. When the temperature fed back by the temperature sensor 7 is lower than the temperature set by the heating device 6 for heating hydrogen energy, the controller 5 controls the heating device 6 to continue working; when the temperature fed back by the temperature sensor 7 is higher than or equal to the temperature set by the heating device 6 for heating hydrogen energy, the controller 5 controls the heating device 6 to stop working or reduce the heating power.

[0022] In this embodiment, to facilitate the movement of the hydrogen storage tank 1, a mobile trolley 8 is provided at the bottom of the hydrogen storage tank 1, and the hydrogen storage tank 1 is secured to the mobile trolley 8 by straps 9. Furthermore, to improve the stability of the hydrogen storage tank 1 fixed on the mobile trolley 8, the mobile trolley 8 is provided with supporting ribs 81 for supporting the hydrogen storage tank 1. The supporting ribs 81 have arc-shaped supporting surfaces adapted to the outer wall of the hydrogen storage tank 1. The supporting ribs 81 fit snugly against the outer wall of the hydrogen storage tank 1 through the arc-shaped supporting surfaces, thus firmly fixing the hydrogen storage tank 1 to the mobile trolley 8.

[0023] In this embodiment, the hydrogen storage tank 1 is also equipped with a pressure gauge 100 for measuring the internal pressure of the hydrogen storage tank 1. The measuring end of the pressure gauge 100 enters the interior of the inner tank body 13. The pressure gauge 100 is electrically connected to the controller 5, and the pressure gauge 100 sends the measured pressure value to the controller 5. When the hydrogen storage tank 1 is being refilled with hydrogen energy, when the pressure value of the hydrogen storage tank 1 reaches the full filling pressure value, the controller 5 controls the switch control valve 4 to close, stopping the refilling of hydrogen energy into the hydrogen storage tank 1; when the pressure value of the hydrogen storage tank 1 is lower than the set pressure value required for refilling, the controller 5 sends a signal to the operator, prompting the hydrogen storage tank 1 to add hydrogen energy.

[0024] In this embodiment, the hydrogen storage tank 1 is also equipped with a hydrogen sensor 200 for monitoring whether there is hydrogen leakage in the inner tank 13. The monitoring end of the hydrogen sensor 200 is located inside the enclosed area 15, and the hydrogen sensor 200 is electrically connected to the controller 5. The hydrogen sensor 200 monitors the hydrogen concentration in the enclosed area 15 in real time and sends it to the controller 5. When the controller 5 receives the hydrogen concentration from the hydrogen sensor 200 and it reaches the set leakage concentration, the controller 5 controls the energy storage device to stop working and sends an alarm signal.

[0025] Furthermore, to increase the energy storage capacity of the energy storage device and ensure its stable and continuous power supply to the new energy elevator, the energy storage device comprises multiple sets connected in parallel. The controller 5 controls the coordinated operation of these multiple sets of energy storage devices. When the power supply of one set of energy storage devices cannot meet the operational needs of the new energy elevator, another set or more sets of energy storage devices can be controlled to simultaneously replenish the elevator's power. When the hydrogen energy in one set of energy storage devices is depleted, another set of energy storage devices can be controlled to continuously supply power to the new energy elevator, ensuring its continuous operation. Each set of energy storage devices can be independently controlled via the switch control valve 4, allowing for individual refueling of a single energy storage device or simultaneous refueling of all energy storage devices, thus improving the convenience of refueling.

[0026] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A new energy elevator energy storage device, characterized by: The hydrogen storage tank (1) is provided with an input port (11) for inputting hydrogen energy storage and an output port (12) for outputting hydrogen energy for new energy elevator operation, the flow valve (2) is connected to the output port (12) through a pipeline, the hydrogen storage tank (1) is controlled to output through the flow valve (2), the on-off control valve (4), the check valve (3) and the input port (11) are connected in sequence through a pipeline, the check valve (3) controls the one-way flow of hydrogen energy in the direction of entering the hydrogen storage tank (1); the flow valve (2) and the on-off control valve (4) are connected to the controller (5) through a circuit respectively, and the controller (5) controls the work of the flow valve (2) and the on-off control valve (4); the outer periphery of the hydrogen storage tank (1) is provided with a heating device (6), the heating device (6) is used for heating the hydrogen storage tank (1), and the heating device (6) is connected to the controller (5) through a circuit.

2. The energy storage device of a new energy elevator according to claim 1, characterized in that: The hydrogen storage tank (1) comprises an inner tank body (13) and an outer tank body (14), the outer tank body (14) is wrapped around the outer periphery of the inner tank body (13), and a closed area (15) is formed between the outer tank body (14) and the inner tank body (13).

3. The energy storage device of a new energy elevator according to claim 2, characterized in that: The heating device (6) comprises a heater (61), a water pump (62) and a heating pipe (63), the heater (61) and the water pump (62) are connected through a pipeline; one end of the heating pipe (63) is connected to the heater (61), the other end penetrates the outer tank body (14) into the closed area (15), spirally winds along the outer side wall of the inner tank body (13), penetrates out of the outer tank body (14) and is connected to the water pump (62).

4. The energy storage device of a new energy elevator according to claim 3, characterized in that: The outer side wall of the inner tank body (13) is provided with a temperature sensor (7), the sensing end of the temperature sensor (7) is in contact with the outer side wall of the inner tank body (13) and is used for sensing the temperature of the outer side wall of the inner tank body (13), and the temperature sensor (7) is connected to the controller (5) through a circuit.

5. The energy storage device of a new energy elevator according to claim 1, characterized in that: The bottom of the hydrogen storage tank (1) is provided with a mobile plate vehicle (8), and the hydrogen storage tank (1) is bound to the mobile plate vehicle (8) through a binding belt (9).

6. The energy storage device of a new energy elevator according to claim 5, characterized in that: The mobile plate vehicle (8) is provided with a supporting rib (81) for supporting the hydrogen storage tank (1), the supporting rib (81) is provided with an arc-shaped supporting surface matched with the outer side wall of the hydrogen storage tank (1), and the supporting rib (81) is matched with the outer side wall of the hydrogen storage tank (1) through the arc-shaped supporting surface.

7. The energy storage device of a new energy elevator according to claim 2, characterized in that: The hydrogen storage tank (1) is also provided with a pressure gauge (100) for measuring the internal pressure of the hydrogen storage tank (1), the measuring end of the pressure gauge (100) enters the inside of the inner tank body (13), and the pressure gauge (100) is connected to the controller (5) through a circuit.

8. The energy storage device of a new energy elevator according to claim 2, characterized in that: The hydrogen storage tank (1) is also provided with a hydrogen sensor (200) for monitoring whether there is hydrogen energy leakage in the inner tank body (13), the monitoring end of the hydrogen sensor (200) is located in the closed area (15), and the hydrogen sensor (200) is connected to the controller (5) through a circuit.

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