Low-nitrogen biogas torch

Abstract

The utility model relates to a low-nitrogen marsh gas torch which comprises a marsh gas tank and a combustion chamber which are communicated with each other, and gas is subjected to low-temperature combustion in the combustion chamber; and the screening part is arranged between the biogas digester and the combustion chamber, and non-combustible gas is fed into the biogas digester through the screening part. According to the utility model, the combustion chamber, the biogas digester and the screening part are communicated in a closed-loop manner, so that nitrogen flowing out of the biogas digester can enter the biogas digester again after being screened out, thereby forming a cyclic utilization effect, avoiding the complexity of continuously manufacturing the nitrogen, and improving the production efficiency. Therefore, the whole biogas treatment process can be smoothly carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of combustion torches, in particular to a low-nitrogen biogas torch. Background Art

[0002] Currently, organic waste is disposed of in landfills, and the biogas produced during fermentation and decay is typically burned at low temperatures using torches to prevent greenhouse gas (primarily methane) emissions. Because biogas formation in the biogas tank is relatively slow, nitrogen needs to be introduced into the biogas tank to squeeze it out. However, in existing technologies, nitrogen needs to be continuously introduced into the tank to maintain a high pressure, requiring constant nitrogen production, which complicates the process. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the following technical problems in the prior art: in the biogas treatment process, in order to continuously maintain the nitrogen inlet state, nitrogen needs to be continuously produced, which increases the complexity of the entire process and is not conducive to the progress of the process. To solve this technical problem, the present utility model provides the following technical solutions:

[0005] Low nitrogen biogas flare, including:

[0006] A biogas tank and a combustion chamber are interconnected, and the gas is burned at low temperature in the combustion chamber;

[0007] The screening part is arranged between the biogas tank and the combustion chamber, and the non-combustible gas is sent into the biogas tank through the screening part.

[0008] As a preferred technical solution for the low-nitrogen biogas torch, the screening part includes a separation chamber, which is connected to the combustion chamber and the biogas tank through pipelines, and a molecular sieve is arranged in the separation chamber.

[0009] As an optimal technical solution for the low-nitrogen biogas torch, the combustion chamber is a sealed structure with an air inlet pipe disposed thereon.

[0010] As an optimal technical solution for the low-nitrogen biogas torch, the biogas tank is provided with a supplementary pipe for nitrogen to enter.

[0011] As an optimal technical solution for the low-nitrogen biogas torch, a valve assembly is arranged between the combustion chamber and the biogas tank, and the valve assembly has a one-way permeability function.

[0012] The low-nitrogen biogas torch provided by the utility model has the beneficial effect of arranging a closed-loop connection between the combustion chamber, the biogas tank and the screening part, so that the nitrogen flowing out of the biogas tank can enter the biogas tank again after being screened out, thereby forming a recycling effect, thereby eliminating the need for the tedious continuous production of nitrogen, thereby ensuring the smooth progress of the entire biogas treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0014] Figure 1 This is a schematic diagram of the gas circuit connection of one embodiment of the present utility model.

[0015] Reference numerals: 1. air intake pipe; 2. supplementary pipe; 3. valve assembly; 4. oxygen exhaust pipe. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0019] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0020] Reference Figure 1 One embodiment of the present invention provides a low-nitrogen biogas torch, comprising at least the following parts:

[0021] The biogas tank and combustion chamber are interconnected. The biogas tank is used for landfilling garbage. The fermented biogas enters the combustion chamber from the biogas tank and is finally burned at low temperature in the combustion chamber.

[0022] The screening part is provided between the biogas tank and the combustion chamber. Non-combustible gas (including flame-retardant gas, such as carbon dioxide, nitrogen, etc.) comes out of the combustion chamber and passes through the screening part before being sent to the biogas tank.

[0023] Based on the above, compared with the prior art, the present invention forms a closed-loop structure between the combustion chamber, the biogas tank and the screening part, so that nitrogen circulates in the closed-loop structure. Specifically, after the nitrogen is filled into the biogas tank, the biogas is squeezed and enters the combustion chamber together with the biogas. After the biogas is burned at low temperature, carbon dioxide is formed and reaches the screening part together with the nitrogen. The unreacted oxygen is separated and discharged, and the nitrogen and carbon dioxide continue to enter the biogas tank to provide a squeezing effect. Therefore, the entire process avoids the tedious need for continuous production of nitrogen, thereby ensuring the smooth progress of the process.

[0024] Further, refer to Figure 1 The screening part includes a separation chamber, which is connected to the combustion chamber and the biogas tank through pipelines. A molecular sieve is arranged in the separation chamber, and an oxygen exhaust pipe 4 is also arranged on the separation chamber. After the mixed gas after combustion reaches the separation chamber, the unused oxygen is screened out and discharged through the oxygen exhaust pipe 4, and non-combustible gases such as carbon dioxide and nitrogen continue to flow into the biogas tank through the pipeline.

[0025] Further, refer to Figure 1 The combustion chamber is a sealed structure, on which an air intake pipe 1 is arranged. The air intake pipe 1 is used for the entry of air, so that the biogas is burned in a closed manner in the combustion chamber. This structure ensures the leakage of nitrogen, thereby improving the full utilization of nitrogen.

[0026] Further, refer to Figure 1The biogas tank is also equipped with a supplementary pipe 2, which is used for the entry of nitrogen. When the nitrogen in the entire closed-loop system is insufficient, nitrogen can be supplemented through the supplementary pipe 2, thereby improving the practical effect of the present invention. The supplementary pipe 2 is equipped with an openable and closable effect, and can be kept closed when it is not needed.

[0027] Further, refer to Figure 1 A valve assembly 3 is arranged between the combustion chamber and the biogas tank. The valve assembly 3 has a one-way permeability function, so that the gas can only flow from the biogas tank to the combustion chamber side to avoid backflow caused by biogas mixed with oxygen, thereby ensuring the safety of the entire system.

[0028] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. Low nitrogen biogas torch, characterized by: include: A biogas tank and a combustion chamber are interconnected, and the gas is burned in the combustion chamber; The screening part is arranged between the biogas tank and the combustion chamber, and the non-combustible gas is sent into the biogas tank through the screening part.

2. The low-nitrogen biogas torch according to claim 1, characterized in that: The screening part includes a separation chamber, which is connected to the combustion chamber and the biogas tank through pipelines, and a molecular sieve is arranged in the separation chamber.

3. The low-nitrogen biogas torch according to claim 1, characterized in that: The combustion chamber is a sealed structure and is provided with an air intake pipe (1).

4. The low-nitrogen biogas torch according to claim 1, characterized in that: The biogas tank is provided with a supplementary pipe (2) for nitrogen to enter.

5. The low-nitrogen biogas torch according to claim 1, characterized in that: A valve assembly (3) is arranged between the combustion chamber and the methane tank, and the valve assembly (3) has a one-way permeation function.

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