Pressure type biogas soft bag

Abstract

The invention discloses a pressure type biogas soft bag which comprises a closed soft bag body. A gas outlet pipe is arranged on the soft bag body. A gas outlet valve is arranged on the gas outlet pipe. A closed inflation bag is arranged in the soft bag body and provided with an inflation pipe which extends out of the soft bag body. The inflation pipe is connected with the soft bag body in a sealed mode. By arranging the closed inflation bag in the soft bag body, the inflation bag can be inflated through the inflation pipe of the inflation bag. After inflation, the volume of the inflation bag is expanded, biogas in the soft bag body can be squeezed, the pressure of the biogas in the soft bag body is increased, and therefore the pressure of biogas discharged from the gas outlet pipe is increased. The traditional pumping pressurizing mode is changed, a getter pump is omitted, and the problem that the getter pump is corroded by biogas slurry can not occur even when the biogas slurry is discharged out of the gas outlet pipe. When the pressure in the soft bag body needs to be adjusted, the gas in the inflation bag can be directly discharged through the gas inflation pipe.

Description

technical field [0001] The invention relates to biogas equipment, in particular to a pressure type biogas soft bag. Background technique [0002] The soft foldable biogas digester is a new type of biogas equipment. It mainly includes: soft foldable biogas fermentation bag, biogas storage bag, biogas booster pump, desulfurizer, water separator, biogas delivery pipe and related pipe fittings. The main body of the equipment is a soft foldable biogas fermentation bag, which is made of high-strength plastic material through high-frequency heat sealing, and is equipped with air outlet, inlet and outlet. When the soft biogas bag is used, there is often the problem of low pressure inside the bag. [0003] In the prior art, physical boosting and pumping boosting are usually used to solve the problem of low pressure. The physical pressurization method generally presses heavy objects such as sandbags on soft biogas bags. This method has limited pressurization and has the problem of...

AI Technical Summary

Problems solved by technology

However, after using the air pump to pump out the biogas, the soft biogas bag will shrink, and when it is sucked to a certain extent, it is easy to suck out the biogas slurry at the same time with the biogas

Even, the suctioned biogas slurry will cause corrosion of the air pump, and may damage the air pump

It has brought great inconvenience to the users. It is necessary to observe the condition of the soft biogas bag at intervals. Not only the error is large, but if you forget to check it on time, the above problems will appear, and there will be great troubles when using biogas.

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