CN202898409U - Solar methane heating device - Google Patents

Abstract

The solar biogas heating device belongs to the field of biogas digester construction technology, including temperature sensors, liquids, biogas digesters, solar heat-absorbing walls, outlets, outlet pipes, outlet pumps, one-way valves, inlet pipes, inlet pumps and inlets, temperature The sensor is installed at the bottom of the middle of the device, and the liquid flows between the outer wall of the biogas digester and the solar heat absorbing wall. The lower left corner of the biogas digester is the feed inlet, and the upper right corner is the discharge outlet. The water inlet pump, the outlet pipe and the outlet pump are installed on the upper right of the biogas digester, and a one-way valve is installed in the liquid circuit and in the center above the biogas digester. The temperature sensor is installed at the bottom of the middle of the device; the one-way valve controls the flow direction of the liquid along the counterclockwise direction; the liquid is water or oil. The biogas digester can be kept at a relatively stable temperature for fermentation all year round, and the use of solar heating is energy-saving and environmentally friendly, which solves the problem of low biogas production in winter.

Description

Solar biogas heating device

technical field

The utility model relates to a biogas pool, in particular to a solar biogas pool, which is an improvement on the structure of the existing biogas pool and belongs to the technical field of biogas pool construction.

Background technique

Temperature is one of the important conditions for biogas production, it directly affects the ability of bacteria life activities, gas production speed and gas production. Generally, biogas fermentation can be carried out within the temperature range of 8-70°C, among which 30-37°C is the most suitable temperature. Methanogens are extremely sensitive to temperature. If the temperature in the biogas tank rises or falls by 2-3°C, the biogas production will be significantly affected, so try to keep the temperature in the fermentation tank relatively stable. At present, many biogas digesters will be idle in winter. In order to make the biogas digesters continue to function in winter, it is very important to increase and stabilize the temperature. This is a problem that needs to be solved urgently.

Contents of the invention

The purpose of the utility model is to provide a solar biogas heating device.

The problem to be solved by the utility model is that the temperature of the existing methane pool is unstable and the fermentation output is low in winter.

For realizing the purpose of the utility model, the technical scheme that the utility model adopts is:

Solar biogas heating device, including temperature sensor, liquid, biogas tank, solar heat absorbing wall, discharge port, water outlet pipe, water outlet pump, one-way valve, water inlet pipe, water inlet pump and feed inlet, the temperature sensor is installed in the middle of the device At the bottom, the liquid flows between the outer wall of the biogas digester and the solar heat-absorbing wall. The lower left corner of the biogas digester is the feed port, and the upper right corner is the discharge port. An outlet pipe and an outlet pump are installed on the side, and a one-way valve is installed in the liquid circuit and in the center above the biogas digester.

The temperature sensor is installed at the bottom of the middle of the device; the one-way valve controls the flow direction of the liquid along the counterclockwise direction; the liquid is water or oil.

The utility model has the advantages that the methane pool can be kept at a relatively stable temperature for fermentation all the year round, the heating by solar energy is energy-saving and environment-friendly, and the problem of low methane output in winter is solved.

Description of drawings

Fig. 1 is the schematic diagram of the utility model solar biogas heating device;

In the figure: 1. Temperature sensor 2. Liquid 3. Digester 4. Solar heat absorbing wall 5. Material outlet 6. Outlet pipe 7. Outlet pump 8. One-way valve 9. Inlet pipe 10. Inlet pump 11. Feed mouth.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in the figure, the solar biogas heating device includes temperature sensor 1, liquid 2, biogas digester 3, solar heat absorbing wall 4, discharge port 5, water outlet pipe 6, water outlet pump 7, one-way valve 8, water inlet pipe 9, The water inlet pump 10 and the feed port 11, the temperature sensor 1 is installed at the bottom of the device, the water inlet pump 10 and the water outlet pump 7 are equipped with an automatic control system, the temperature sensor 1 feeds back the temperature of the liquid 2 to the water inlet pump 10 through the automatic control system And the outlet pump 7, the inlet pump 10 inject the cooling liquid 2, the outlet pump 7 discharges the excess liquid 2 in time, and the liquid 2 flows between the outer wall of the biogas digester 3 and the solar heat absorbing wall 4 for conducting solar heat energy. The bottom left corner of the biogas digester 3 is the feed port 11, and the upper right corner is the discharge port 5, which is convenient for the input of raw materials and the output of biogas. The outlet pipe 6 and the outlet pump 7 are installed, and the outlet pump 7 quickly draws out the excess liquid 2, increases the circulation speed of the circuit, and controls the temperature in time. The cooled liquid 2 flows in the counterclockwise direction, quickly reduces the temperature of the liquid 2 in the circuit, and controls the temperature in the digester 3 in time.

The temperature sensor 1 is installed at the lowest end in the middle of the device; the one-way valve 8 controls the flow direction of the liquid 2 along the counterclockwise direction; the liquid 2 is water or oil.

The usage method of the present utility model: add raw materials to the biogas digester 3 at the feed port 11, inject the liquid 2 into the water inlet pump 10, and the solar heat absorbing wall 4 absorbs solar heat energy, and conducts it into the biogas digester 3 through the liquid 2, so that the biogas digester 3 Reach a certain temperature, when the temperature is high, the temperature sensor 1 can detect it, feed back to the water inlet pump 10 and start to enter the cooled liquid 2, the check valve 8 controls the flow direction of the liquid 2, so that the liquid 2 flows counterclockwise, The liquid 2 circulates in the circuit, and the outlet pump 7 pumps out the excess liquid 2 to increase the circulation speed of the circuit and keep the temperature stable. When the biogas digester 3 generates biogas, the biogas is output from the outlet 5 .

Claims (3)

1. Solar biogas heating device, including temperature sensor (1), liquid (2), biogas digester (3), solar heat absorbing wall (4), discharge port (5), water outlet pipe (6), water outlet pump (7 ), one-way valve (8), water inlet pipe (9), water inlet pump (10) and feed inlet (11), characterized in that: the liquid (2) flows on the outer wall of the biogas digester (3) and the solar heat absorbing wall ( 4), the lower left corner of the biogas digester (3) is the feed inlet (11), the upper right corner is the outlet (5), and the upper left corner of the biogas digester (3) is installed with a water inlet pipe (9) and a water inlet pump ( 10), an outlet pipe (6) and an outlet pump (7) are installed on the upper right of the biogas digester (3), and a one-way valve (8) is installed in the liquid circuit and in the center above the biogas digester (3). 2. The solar biogas heating device according to claim 1, characterized in that: the temperature sensor (1) is installed at the bottom of the middle of the device. 3. The solar biogas heating device according to claim 1, characterized in that: the liquid (2) is water or oil.