Anaerobic fermentation low-energy-consumption warming system

Abstract

The invention belongs to the technical field of environmental protection, and discloses an anaerobic fermentation low-energy-consumption warming system which comprises a gas collection cabin body arranged on the top of a fermentation container in a protruding mode and a heat dissipation pipe arranged in the fermentation container, an exhaust pipe is arranged on the gas collection cabin body and connected with warming equipment, a heat exchanger is arranged in the warming equipment, and the heat exchanger is connected with the heat dissipation pipe. And the radiating pipe is circularly communicated with the heat exchanger. According to the anaerobic fermentation low-energy-consumption warming system provided by the invention, the sewage in the fermentation container can be warmed by using part of self-produced biogas, so that low energy consumption is realized, and normal gas production all the year round is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection, and in particular relates to an anaerobic fermentation low-energy consumption temperature-increasing system. Background Art

[0002] In the process of anaerobic fermentation of manure, the effect of temperature on gas production is particularly obvious. When the ambient temperature is low, external energy (such as coal, natural gas, etc.) is often used for heating, which consumes a lot of energy and has high operating costs. Summary of the invention

[0003] The present invention aims to solve the above technical problems at least to a certain extent. To this end, the present invention aims to provide an anaerobic fermentation low energy consumption temperature increasing system.

[0004] The technical solution adopted by the present invention is:

[0005] An anaerobic fermentation low-energy consumption heating system comprises an air collecting cabin protruding from the top of a fermentation container and a heat dissipation pipe arranged inside the fermentation container. An exhaust pipe is arranged on the air collecting cabin, and the exhaust pipe is connected to a heating device. A heat exchanger is arranged in the heating device, and the heat dissipation pipe is cyclically connected to the heat exchanger.

[0006] Preferably, a constant pressure control valve is provided on the exhaust pipe. A feed pipe, a slag discharge pipe and a liquid discharge port are provided on the fermentation container.

[0007] Preferably, the fermentation container is connected to the feed unit, the exhaust pipe is connected to the power generation unit, and the power generation unit is used to provide electrical energy to the feed unit. The heat dissipation pipe is cyclically connected to the heat exchanger through a circulation pipeline.

[0008] The beneficial effects of the present invention are:

[0009] The low-energy consumption heating system for anaerobic fermentation provided by the present invention can use part of the self-produced biogas to heat the sewage in the fermentation container, thereby achieving low energy consumption, ensuring normal gas production throughout the year, and improving treatment efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the low energy consumption warming system for anaerobic fermentation of the present invention.

[0011] In the figure: 1-fermentation container; 2-gas collecting chamber; 3-heat dissipation pipe; 4-exhaust pipe; 5-constant pressure control valve; 6-temperature increasing device; 7-heat exchanger; 8-circulation pipeline; 9-feed pipe; 10-slag discharge pipe; 11-liquid discharge port; 12-sludge layer; 13-wastewater layer; 14-scum layer. DETAILED DESCRIPTION

[0012] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention. The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations.

[0013] In the present invention, unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.

[0014] like Figure 1 As shown, an anaerobic fermentation low-energy consumption warming system of the present embodiment comprises an air collecting chamber 2 protruding from the top of a fermentation container 1 and a heat dissipation pipe 3 arranged inside the fermentation container 1. The inside of the fermentation container 1 comprises a sediment layer 12, a sewage layer 13 and a scum layer 14 from bottom to top. The heat dissipation pipe 3 is arranged in the sewage layer 13. An exhaust pipe 4 is arranged on the air collecting chamber 2. A constant pressure control valve 5 is arranged on the exhaust pipe. The exhaust pipe 4 is connected to a warming device 6. A heat exchanger 7 is arranged inside the warming device 6. The heat dissipation pipe 3 is circulatedly connected to the heat exchanger 7 through a circulation pipeline 8.

[0015] The fermentation container 1 is provided with a feed pipe 9, a slag discharge pipe 10 and a liquid discharge port 11. The fermentation container 1 is connected to the feed unit, the feed unit is connected to the feed pipe 9, and the exhaust pipe 4 is connected to the power generation unit.

[0016] The manure is transported from the feed pipe 9 to the fermentation container 1 for treatment, generating sediment, sewage, scum and biogas. The sediment is discharged from the slag discharge pipe 10, the liquid is discharged from the liquid discharge port 11, and the generated biogas enters the gas collection chamber 2 and is collected from the exhaust pipe 4 as energy. Part of the biogas is generated by the power generation unit to transmit electricity to the feed unit.

[0017] Part of the biogas is transported to the warming device 6 through the constant pressure control valve 5. The warming device 6 can burn to generate heat. The heat source water heated by the heat exchanger 7 is transported to the heat dissipation pipe 3 through the circulation pipeline 8 to transfer the heat energy to the sewage layer 13, the sediment layer 12 and the scum layer 14. The cold water flows back from the circulation pipeline 8 to the heat exchanger 7 for heating again. Such continuous circulation saves energy and is not restricted by season or region.

[0018] It can be understood that the number of the heat dissipation tubes 3 is not limited to one as shown in the drawings. In other embodiments, the number of the heat dissipation tubes 3 may be multiple, and the multiple heat dissipation tubes 3 may be connected in series or in parallel.

[0019] It can be understood that the shape of the heat dissipation pipe 3 is not limited to the straight line shape in the drawings. In other embodiments, the shape of the heat dissipation pipe 3 may also be a zigzag line shape, a coil shape, etc.

[0020] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. An anaerobic fermentation low energy consumption temperature increasing system, characterized in that: The invention comprises an air collecting chamber (2) protruding from the top of a fermentation container (1) and a heat dissipation pipe (3) arranged inside the fermentation container (1); an exhaust pipe (4) is arranged on the air collecting chamber (2); the exhaust pipe (4) is connected to a heating device (6); a heat exchanger (7) is arranged inside the heating device (6); and the heat dissipation pipe (3) is cyclically connected to the heat exchanger (7).

2. The anaerobic fermentation low energy consumption warming system according to claim 1, characterized in that: The exhaust pipe is provided with a constant pressure control valve (5).

3. The anaerobic fermentation low energy consumption warming system according to claim 1, characterized in that: The fermentation container (1) is provided with a feed pipe (9), a slag discharge pipe (10) and a liquid discharge port (11).

4. The anaerobic fermentation low energy consumption warming system according to claim 1 or 3, characterized in that: The fermentation container (1) is connected to a feed unit, and the exhaust pipe (4) is connected to a power generation unit, and the power generation unit is used to provide electrical energy to the feed unit.

5. The anaerobic fermentation low energy consumption temperature increasing system according to claim 1, characterized in that: The heat dissipation pipe (3) is in circulation communication with the heat exchanger (7) via a circulation pipeline (8).

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