Solar power generation energy storage defrosting device

Abstract

The utility model provides a solar power generation energy storage defrosting device. The solar power generation energy storage defrosting device comprises a photovoltaic power generation panel, a power generation panel inverter connected with the photovoltaic power generation panel, an electric heating high-temperature energy storage system connected with the power generation panel inverter and a steam injection pipe connected with the electric heating high-temperature energy storage system. The steam injection pipe is arranged on one side of the heat pump fin evaporator; the electric heating high-temperature energy storage system comprises a high-temperature pressure-bearing heat preservation energy storage tank which is communicated with a high-pressure water supplementing pipe through a pipeline. A check valve V3 is arranged on the high-pressure water replenishing pipe; an electric heater is arranged in the high-temperature pressure-bearing heat-preservation energy storage tank and connected with a power generation panel inverter, and the high-temperature pressure-bearing heat-preservation energy storage device has the advantages of being reasonable in design, convenient to use and easy to popularize and apply.

Description

TECHNICAL FIELD

[0001] The utility model relates to a solar power generation energy storage defrosting device relates to the heating ventilation air conditioning technical field. BACKGROUND

[0002] Air energy heat pump defrosting and defrosting: there is a large amount of water vapor in the air, when the water vapor encounters a cold object, and the dew point temperature is lower, it will dew. The heat exchanger of the air energy heat pump wind side is the evaporator, the liquid refrigerant expands and evaporates in the tube fin evaporator, which needs to absorb a large amount of heat from the air, which comes from the sensible heat and latent heat in the air. The absorption of latent heat will cause dew on the fin. When the ambient temperature is lower than 5 DEG C or even lower, the evaporation temperature is lower than 0 DEG C at this time, and the fin is also lower than 0 DEG C, the dew will become fine ice, which is frost. Ice is a poor conductor of heat, when the surface of the evaporator is covered with fluffy frost, it is like wearing a "warm clothes", the heat exchange capacity decreases sharply, which leads to further condensation of frost. Such a vicious cycle, the heating capacity of the heat pump is sharply attenuated. If the frost is not removed, it will lead to a decrease in water production, and a large decrease in the return air volume of the compressor, which will cause the exhaust temperature of the compressor to be too high, and finally burn the compressor.

[0003] During the heating process of air energy heat pump in winter, frequent shutdown defrosting and defrosting phenomenon will occur, how to efficiently, reliably and low cost solve the problem of air energy evaporator frosting and defrosting is a world problem faced by air energy heat pump industry.

[0004] At present, the winter defrosting process of the whole industry air energy heat pump is actually realized by reversing the four-way valve to execute the refrigeration program, which is essentially still converting condensation heat into evaporation heat, which reduces the operating efficiency of the air energy heat pump, reduces the heating capacity, increases the investment and operation cost of the heating system equipment (the defrosting and defrosting process still needs to consume a large amount of municipal power). In engineering practice, there is frequent defrosting, defrosting is not complete, and the defrosting process is a refrigeration operation process, which not only cannot produce hot water, but also needs to consume the energy of the original hot water, and the discharged frozen water returns to the insulation water frost, causing the water temperature to further decrease; the utility model uses the external natural heat source generated by the solar photovoltaic panel to generate electricity as the defrosting energy source, without consuming the energy of the heat pump air conditioning system itself, which improves the heating efficiency and reliability of the air energy heat pump in winter, and greatly reduces the power consumption in the winter heating process of the air energy heat pump.

[0005] In the traditional defrosting mode, the engineering design of air energy heat pump water heater unit needs to consider the use level of different environments and different regions, and different defrosting parameters need to be formulated. Such as defrosting time, defrosting starting temperature and defrosting ending temperature, which need to set different parameters according to the minimum temperature and humidity of different regions. CONTENT OF THE UTILITY MODEL

[0006] The utility model wants to solve the technical problem to provide a solar energy power generation energy storage defrosting device which is reasonable in design, convenient to use and easy to popularize and apply.

[0007] In order to reach the technical problem's purpose of above-mentioned, the technical scheme that the utility model adopts is:

[0008] A solar energy power generation energy storage defrosting device, it includes photovoltaic power generation panel, with the photovoltaic power generation panel connection's power generation panel inverter, with the power generation panel inverter connection's electric heating high temperature energy storage system and with the electric heating high temperature energy storage system connection's steam injection pipe;

[0009] The steam injection pipe is arranged at one side of the heat pump fin evaporator;

[0010] The electric heating high temperature energy storage system includes high temperature pressure retaining heat storage tank, and the high temperature pressure retaining heat storage tank is communicated with the high pressure water supply pipe through the pipeline;

[0011] Check valve V3 is arranged on the high pressure water supply pipe;

[0012] Electric heater is arranged in the high temperature pressure retaining heat storage tank, and the electric heater is connected with the power generation panel inverter.

[0013] Further, the power generation panel inverter is connected with the electric heater through the power line, and photovoltaic heating power switch K1 is arranged on the power line.

[0014] Further, the electric heater is connected with the municipal power supply through the municipal power supply line, and municipal electric heating power switch K2 is arranged on the municipal power supply line.

[0015] Further, the high temperature pressure retaining heat storage tank is communicated with the steam injection pipe through the steam drainage pipe, and defrosting steam electromagnetic valve V1 is arranged on the connecting pipeline of the steam injection pipe.

[0016] Further, branch pipeline is arranged on the steam drainage pipe, the branch pipeline is communicated with the domestic water pipeline, and domestic water electromagnetic valve V2 is arranged on the domestic water pipeline.

[0017] Further, safety valve is arranged on the high temperature pressure retaining heat storage tank.

[0018] Further, more than one spray head is uniformly arranged on the steam injection pipe.

[0019] Further, the high temperature pressure retaining heat storage tank is spherical pressure head at the top.

[0020] The beneficial effects generated by the above technical scheme are:

[0021] The utility model discloses a high temperature steam no dead angle full coverage with high temperature high pressure steam injection reaches 100% defrosting effect, greatly improve the defrosting reliability, its utilize natural resource defrosting, save a large amount of defrosting municipal power consumption, also just in situ consumption solar photovoltaic panel power generation, economic benefit is higher, in other seasons photovoltaic panel power generation still can be connected to the grid and sell electricity, further improve photovoltaic panel investment income, further shorten photovoltaic panel's investment return period.

[0022] The utility model discloses in winter air energy heat pump heating operation time period, utilize photovoltaic panel power generation direct heating high temperature hot water storage energy of pressure water tank, be used for air energy heat pump defrosting, make air energy heat pump winter heating operation efficiency improve greatly, save a large amount of defrosting cost.

[0023] The utility model discloses simple and feasible operation, easy popularization and application, with the more and more popular distributed solar photovoltaic power generation, especially public building place, rural self -build house, industrial plant, commercial building roof place, big and small distributed photovoltaic power station is almost everywhere, for low -cost, simple and convenient realization photovoltaic power generation high temperature steam energy storage defrosting provide the advantage of time and place. ACCOUT OF DRAWINGS

[0024] Figure 1 It is structure schematic drawing for the utility model;

[0025] Among them, A, photovoltaic panel array;B, electric heating high temperature storage system;C, steam defrosting system;K1, photovoltaic heating power switch;K2, municipal electric heating power switch;V1, defrosting steam electromagnetic valve;V2, hot water electromagnetic valve;V3, check valve;1, photovoltaic power generation panel;2, power generation panel inverter;201, power cord;202, municipal power supply power cord;3, high temperature pressure -bearing heat -preserving storage tank;301, electric heater;302, high pressure water supply pipe;303, drainage pipe;304, safety valve;305, steam drainage pipe;306, steam injection pipe array;307, high temperature steam;4, heat pump fin evaporator. SPECIFIC IMPLEMENTATION

[0026] The utility model makes further explanation in combination with the drawings.

[0027] As the drawing Figure 1As shown, the embodiment provides a solar power generation energy storage defrosting device, which comprises a photovoltaic power generation panel 1, a power generation panel inverter 2 connected with the photovoltaic power generation panel 1, an electric heating high-temperature energy storage system connected with the power generation panel inverter 2 and a steam injection pipe 306 connected with the electric heating high-temperature energy storage system; the steam injection pipe 306 is arranged on one side of a heat pump fin evaporator 4; the above parts constitute the main structure of the utility model, namely, a photovoltaic panel array A, an electric heating high-temperature energy storage system B and a steam defrosting system C, wherein the photovoltaic panel array A is composed of a plurality of photovoltaic power generation panels, the photovoltaic power generation panel 1 is a common power generation panel of single crystal silicon / polycrystalline silicon, the photovoltaic panel array A is connected to the power generation panel inverter 2 through a power line 201, the power generation panel inverter is connected to electric heating rods 301 through the power line 201 after rectification and voltage rise, the electric heating rods 301 are installed in the inside (bottom) of a high-temperature pressure-bearing heat preservation energy storage tank 3, the electric heating high-temperature energy storage system comprises the high-temperature pressure-bearing heat preservation energy storage tank 3, the high-temperature pressure-bearing heat preservation energy storage tank 3 is communicated with a high-pressure water supplement pipe 302 through a pipeline, the power generation panel inverter 2 is connected with the electric heater 301 through the power line 201, a photovoltaic heating power switch K1 is arranged on the power line 201, that is, a photovoltaic power heating always-on switch K1 is arranged on the power line 201 connected between the photovoltaic panel inverter 2 and the electric heating rod 301, forming a complete closed-loop photovoltaic panel electric heating energy storage system, in the winter air energy heat pump heating operation period, the high-temperature hot water energy storage of the pressure-bearing water tank is directly heated by the photovoltaic panel power generation, which is used for air energy heat pump defrosting and thawing, so that the winter heating operation efficiency of the air energy heat pump is greatly improved, and a large amount of defrosting and thawing cost is saved.

[0028] The electric heater 301 is connected with the municipal power supply through a municipal power supply line 202, a municipal electric heating power switch K2 is arranged on the municipal power supply line 202, and the municipal electric heating power switch K2 is connected in parallel to the closed-loop photovoltaic panel electric heating energy storage power supply system, so as to form a system for heating the electric heating rod 301 by double power supply, and the system is switched by the photovoltaic power heating always-on switch K1 and the municipal electric heating power switch K2.

[0029] The bottom of the high-temperature pressure-bearing heat preservation energy storage tank 3 is connected with a high-pressure water inlet pipe 302; a check valve V3 is arranged on the high-pressure water supplement pipe 302; an electric heater 301 is arranged in the high-temperature pressure-bearing heat preservation energy storage tank 3, the electric heater 301 is connected with the power generation panel inverter 2, a safety valve 304 is arranged on the high-temperature pressure-bearing heat preservation energy storage tank 3, and the top of the high-temperature pressure-bearing heat preservation energy storage tank 3 is a spherical pressure-bearing head,

[0030] The high-temperature pressure-bearing insulated energy storage tank 3 is connected to the steam injection pipe 306 via the steam inlet pipe 305. A defrosting steam solenoid valve V1 is installed on the connecting pipe of the steam injection pipe 306. A branch pipe is installed on the steam inlet pipe 305, which is connected to the domestic water pipe. A domestic water solenoid valve V2 is installed on the domestic water pipe.

[0031] One or more nozzles are evenly arranged on the steam injection pipe 306. The main connection between the steam injection pipe 305 and the high-temperature steam solenoid valve V1 is to several parallel steam injection pipe arrays 306. Several small nozzles are provided in the steam injection pipe array 306. After passing through several small nozzles, the high-temperature and high-pressure hot water directly forms a large amount of high-temperature steam 307, which is directly injected onto the air source heat pump finned evaporator 4 to complete the defrosting process. This utility model adopts high-temperature steam injection with no dead angle and full coverage to achieve 100% defrosting effect, which greatly improves the reliability of defrosting. It uses natural resources for defrosting, saving a lot of municipal electricity consumption for defrosting. At the same time, it also consumes the power generation of solar photovoltaic panels on-site, resulting in higher economic benefits. In other seasons, the power generation of photovoltaic panels can still be connected to the grid and sold, further improving the investment return of photovoltaic panels and further shortening the investment payback period of photovoltaic panels.

[0032] The specific actions such as jet defrosting, defrosting logic, and opening / closing the high-temperature steam solenoid valve V1 are controlled by the defrosting logic of the air source heat pump unit itself.

[0033] The specific operating principle is as follows:

[0034] During the winter heating season of air source heat pumps, when frost is likely to form, high-temperature and high-pressure steam is mainly used for defrosting. At this time, the domestic hot water solenoid valve V2 is always closed, while the high-temperature steam solenoid valve V1 will be opened or closed as needed for defrosting.

[0035] During the non-heating season, the system does not require defrosting or de-frost stages. At this time, the high-temperature steam solenoid valve V1 is always closed, and the domestic hot water solenoid valve V2 is opened or closed according to the need for domestic hot water. When using hot water, the high-pressure water inlet pipe 302 simultaneously replenishes water, pushing hot water to flow out from the domestic hot water supply pipe.

[0036] The photovoltaic panel assembly 1 can be any form of distributed photovoltaic power station panel, or it can be a specially assembled defrosting photovoltaic panel array. Distributed solar photovoltaic power generation is becoming increasingly popular, especially in public buildings, rural self-built houses, industrial plants, and commercial building rooftops. Distributed photovoltaic power stations of all sizes are almost ubiquitous, providing a favorable environment for low-cost, simple, and convenient high-temperature steam energy storage defrosting of photovoltaic power generation.

[0037] During prolonged periods of cloudy and rainy weather in winter, when the stored energy is insufficient for defrosting, municipal power supply is used for peak shaving to supplement the energy. Specifically, when the temperature of the hot water inside the high-temperature pressure-insulated energy storage tank 3 falls below a set value, such as 180℃, the photovoltaic heating power switch K1 is automatically shut off, and the power is switched to the municipal electric heating power switch K2. This achieves the purpose of supplementing the energy supply with municipal power when the stored energy is insufficient for defrosting during prolonged periods of cloudy and rainy weather.

[0038] In the pressurized tank, the hot water remains in a liquid state due to the pressure. However, after the pressure is released by the small nozzles on the steam jet array 306, it becomes a high-temperature steam and dissipates heat to the environment.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A solar power generation energy storage defrosting device, characterized by, It includes a photovoltaic power generation panel (1), a power generation panel inverter (2) connected with the photovoltaic power generation panel (1), an electric heating high-temperature energy storage system connected with the power generation panel inverter (2), and a steam injection pipe (306) connected with the electric heating high-temperature energy storage system. The steam injection pipe (306) is arranged on one side of the heat pump fin evaporator (4). The electric heating high-temperature energy storage system comprises a high-temperature pressure-bearing heat preservation energy storage tank (3) which is communicated with a high-pressure water supplement pipe (302) through a pipeline. A check valve is arranged on the high-pressure water supplement pipe (302). An electric heater (301) is arranged in the high-temperature pressure-bearing heat preservation energy storage tank (3), and the electric heater (301) is connected with the power generation panel inverter (2).

2. The solar power energy storage defrosting device according to claim 1, wherein, The power generation panel inverter (2) is connected with the electric heater (301) through a power line (201), and a photovoltaic heating power switch K1 is arranged on the power line (201).

3. The solar power energy storage defrosting device according to claim 2, wherein, The electric heater (301) is connected with a municipal power supply through a municipal power supply line (202), and a municipal electric heating power switch K2 is arranged on the municipal power supply line (202).

4. The solar energy power generation and energy storage defrosting device according to claim 1, characterized in that, The high-temperature pressure-bearing heat preservation energy storage tank (3) is communicated with the steam injection pipe (306) through a steam drainage pipe (305), and a defrosting steam electromagnetic valve V1 is arranged on the connecting pipeline of the steam injection pipe (306).

5. The solar energy power generation, energy storage and defrosting device according to claim 4, characterized in that, A branch pipeline is arranged on the steam drainage pipe (305), the branch pipeline is communicated with a domestic water pipeline, and a domestic water electromagnetic valve V2 is arranged on the domestic water pipeline.

6. The solar energy power generation and energy storage defrosting device according to claim 1, characterized in that, A safety valve (304) is arranged on the high-temperature pressure-bearing heat preservation energy storage tank (3).

7. The solar energy power generation and energy storage defrosting device according to claim 1, characterized in that, More than one spray head is uniformly arranged on the steam injection pipe (306).

8. The solar energy power generation and energy storage defrosting device according to claim 1, characterized in that, The top of the high-temperature pressure-bearing heat preservation energy storage tank (3) is a spherical pressure-bearing head.

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