CN204569911U - Biogas pond photovoltaic self-heating device - Google Patents

Abstract

The utility model relates to a photovoltaic self-heating device of a methane tank, which can automatically regulate and control the set temperature of the methane tank in winter. The utility model discloses methane-generating pit photovoltaic is from heating device, include: photovoltaic board, controller, battery, self-limiting temperature electric heat tape etc.. The photovoltaic panel, the controller and the storage battery are connected by cables to form a photovoltaic system and are fixed by a support; the photovoltaic system is connected with a self-temperature-limiting electric heating belt, and the self-temperature-limiting electric heating belt is arranged on the inner side of a shell heat-insulating layer of the methane tank or on the inner side of the methane tank. The utility model converts the clean energy solar energy into low-voltage electric energy under the condition of no pollution, then utilizes the self-temperature-limiting electric heating belt to automatically heat the methane tank, regulates and controls the set temperature of the methane tank, and solves the problem that the methane tank has low temperature and little gas production in winter.

Description

Biogas pond photovoltaic self-heating device

Technical field:

The utility model relates to a photovoltaic self-increasing device for a biogas pit, which can automatically regulate and maintain the set temperature of the biogas pit in winter.

Background technique:

Solar energy is a clean and renewable new energy source, which is more and more popular among people. It has a wide range of functions in people's life and work. Among them, the conversion of solar energy into electrical energy by photovoltaic systems is the full use of clean energy. Solar garden lights are Working with photovoltaic systems. The working principle of the photovoltaic system is that when light is used to irradiate the surface of the solar cell, a part of the photons are absorbed by the silicon material; the energy of the photons is transferred to the silicon atoms, causing the electrons to move and become free electrons that gather on both sides of the P-N junction to form a potential When the external circuit is connected, under the action of this voltage, there will be a current flowing through the external circuit to generate a certain output power.

With the construction of rural biogas and the promotion of biogas-based ecological homeland technology model, biogas has become an important renewable energy in rural areas of our country, and biogas has played an increasingly important role in the implementation of sustainable agricultural development strategies. Biogas fermentation is greatly affected by temperature. According to different fermentation temperatures, it can be divided into high-temperature fermentation, medium-temperature fermentation and normal temperature fermentation. Rural biogas projects in my country are mainly fermented at room temperature and near-medium temperature. With the change of temperature throughout the year, the rate of biogas production varies greatly. Especially in winter, when the temperature of the biogas digester is low, the gas production is very little, or even no gas, which seriously restricts the development of rural biogas as a new biomass energy industry. In order to solve this problem, the biogas digester needs to take necessary measures to maintain the set temperature with high efficiency and low consumption in winter.

At present, there are many ways to increase the temperature of biogas digesters in winter, and the common heating methods include electric heating, solar heating, fossil energy hot water boiler heating, ground source heat pump heating, biomass gas hot water boiler heating, solar water heater heating etc.

Utility model content:

1. Technical problems to be solved

The purpose of this utility model is to solve the problem that the winter warming measures of the existing rural biogas projects consume energy and a lot of manpower, use solar photovoltaic panels to convert solar radiation energy into low-voltage electrical energy, and then use self-limiting temperature electric heating belts to convert electrical energy into Thermal energy, automatic regulation to maintain the set temperature of the biogas digester.

2. Technical solution

In order to solve the above technical problems, the utility model biogas pond photovoltaic self-heating device includes: photovoltaic panels, controllers, batteries, self-limiting temperature electric heating belts, etc. The above-mentioned photovoltaic panels, controllers, and batteries are connected by cables to form a photovoltaic system, and are fixed by brackets; the above-mentioned photovoltaic system is connected with a self-limiting temperature heating belt, and the above-mentioned self-limiting temperature heating belt is placed inside the shell insulation layer of the biogas tank or the biogas tank inside.

Three, the beneficial effect of the utility model

In the case of no pollution, the clean energy solar energy is converted into low-voltage electric energy, and then the self-limiting temperature electric heating belt is used to automatically increase the temperature of the biogas digester, regulate and maintain the set temperature of the biogas digester, and solve the problem of low temperature of the biogas digester in winter and little gas production. question.

Description of drawings:

Fig. 1 is a schematic diagram of a photovoltaic self-heating device for a biogas digester of the present invention. In the figure, l is a photovoltaic panel, 2 is a controller, 3 is a storage battery, and 4 is a self-limiting temperature heating belt.

Detailed ways:

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the present invention will be further elaborated below in conjunction with specific illustrations.

As shown in Figure 1, the photovoltaic self-heating device for biogas ponds of the present utility model includes a photovoltaic panel 1, a controller 2, a battery 3, and a self-limiting temperature heating belt 4 in sequence from left to right. The above-mentioned photovoltaic panel 1 is connected with the controller 2 , the controller 2 is connected with the storage battery 3 , and the above-mentioned controller 2 is connected with the self-limiting temperature heating belt 4 . Solar energy is converted into electrical energy through photovoltaic panels, the battery is stored through the battery, the charging and discharging of the battery pack is controlled by the controller, and the electric energy is converted into heat energy through the self-limiting temperature electric heating belt, which automatically heats the biogas digester. Regulate and maintain the set temperature of the biogas digester.

The above are only preferred embodiments of the present utility model. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the technical principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims (4)

1. methane-generating pit photovoltaic is from a heating device, it is characterized in that: main body is made up of photovoltaic panel (1), controller (2), store battery (3), self-temperature-limiting heating strip (4); Described photovoltaic panel (1), controller (2), store battery (3) are connected by cable and form low pressure photovoltaic system, and are fixed by support; Described photovoltaic system is connected with self-temperature-limiting heating strip (4); Inside the shell thermal insulation layer that described self-temperature-limiting heating strip (4) is placed in methane-generating pit or inside methane-generating pit.

2. methane-generating pit photovoltaic according to claim 1 is from heating device, it is characterized in that: described photovoltaic system is different from net solar power system from conventional, solar radiation can be directly converted to continual and steady low-voltage electric energy by it, for methane-generating pit increased winter temperature rising provides low-voltage electric energy, both reduce cost and turn improved security.

3. methane-generating pit photovoltaic according to claim 1 is from heating device, it is characterized in that: utilize self-temperature-limiting heating strip low-voltage electric energy to be converted into heat energy and auto-control temperature, for methane-generating pit increased winter temperature rising provides thermal source and auto-control temperature.

4. methane-generating pit photovoltaic according to claim 1 is from heating device, it is characterized in that: utilize photovoltaic system and self-temperature-limiting heating strip to complete sun power to the direct converting transmission of heat energy and auto-control, automatically maintain the design temperature of methane-generating pit.