CN212039681U

CN212039681U - Fermentation cylinder exhaust treatment system

Info

Publication number: CN212039681U
Application number: CN202020712805.XU
Authority: CN
Inventors: 陈宏战; 赵建波; 杨永建; 陈青坡; 郑志荣; 杨拓; 郭金权; 徐琳; 信芳; 徐跃珍; 张生克; 刘杉; 白静静; 曹琳青
Original assignee: Zhengzhou Tuoyang Biological Engineering Co ltd
Current assignee: Zhengzhou Tuoyang Biological Engineering Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-01
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a fermentation cylinder exhaust-gas treatment system, including the fermentation cylinder that is used for the fermentation operation, be used for supplementary exhaust emissions's gas separator, be used for exhaust emissions's main exhaust pipeline and supplementary exhaust pipeline to and the tail gas processing unit who handles is carried out to tail gas. Through setting up supplementary exhaust pipe, when the pressure in the main exhaust pipe rises to the setting value and above, the positive pressure bleed valve opens, and the gas in the main exhaust pipe can be followed supplementary exhaust pipe and discharged. Because the auxiliary exhaust pipeline is not communicated with the main exhaust pipeline under the normal condition, when the pressure in the main exhaust pipeline rises, the pressure in the auxiliary exhaust pipeline is still at a lower level, and therefore when a positive pressure phenomenon occurs in the main exhaust pipeline, the auxiliary exhaust pipeline can still normally exhaust, and the backflow of tail gas is avoided.

Description

Fermentation cylinder exhaust treatment system

Technical Field

The utility model relates to a fermentation equipment technical field especially relates to a fermentation cylinder exhaust treatment system.

Background

Because the biological fermentation product has the characteristics of high curative effect, low toxicity, less side effect and the like, the biological fermentation product becomes one of the most active and fastest-developing industries in the 21 st century along with the rapid development of modern biotechnology represented by genetic engineering, cell engineering, enzyme engineering and fermentation engineering.

The upper end of a fermentation tank used in the traditional fermentation process is fully opened, and in the production process, a production workshop can generate a large amount of fermentation waste gas with peculiar smell and is in an unorganized discharge state. In order to solve the above problems, the conventional fermentation waste gas treatment method generally includes installing a large-area gas collecting hood in a brewery workshop to simultaneously cover all emission sources, collecting peculiar smell-bearing waste gas in a large-area covering manner, and performing centralized treatment in the same tail gas treatment system.

In the use process, it is found that when a plurality of fermentation tanks are communicated with the same pipeline, the following conditions are met: firstly, stopping the fan when the fan fails; secondly, pressing and exhausting the fermentation tank; thirdly, sterilizing the fermentation tank and performing air exhausting operation by mistake; the positive pressure phenomenon caused by the common pipeline of the collecting pipe of the tail gas treatment system can cause the tank connection phenomenon between the fermentation tanks, thereby causing the contamination of bacteria and causing the loss of production.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a fermentation tank vent gas treatment system for solving the problem of contamination between a plurality of fermentation tanks due to tail gas treatment in the existing fermentation plant.

The above purpose is realized by the following technical scheme:

a fermenter vent gas treatment system comprising: the fermentation tank is communicated with the gas separators, tail gas in the fermentation tank is discharged into the main exhaust pipeline through the gas separators, the gas separators are communicated with the main exhaust pipeline, and the gas separators are communicated with the main exhaust pipeline at a first communication node; the main exhaust pipeline is communicated with the plurality of auxiliary exhaust pipelines, a positive pressure air release valve is arranged on each auxiliary exhaust pipeline, and the positive pressure air release valve is opened when the pressure in the main exhaust pipeline is greater than a set value; when the pressure in the main exhaust pipeline is smaller than a set value, the positive pressure air release valve is closed; the auxiliary exhaust pipeline is communicated with the main exhaust pipeline at a second communication node; at most one second communication node is arranged between every two adjacent first communication nodes; the main exhaust pipeline and the auxiliary exhaust pipeline are both communicated with the tail gas processing unit.

In one embodiment, the auxiliary exhaust pipeline further includes an exhaust branch, a gas filter is disposed on the exhaust branch, and gas in the auxiliary exhaust pipeline is exhausted to the external environment after passing through the exhaust branch.

In one embodiment, a negative pressure generator is disposed on the auxiliary exhaust pipeline, and the negative pressure generator is used for reducing the pressure in the auxiliary exhaust pipeline.

In one embodiment, an air storage chamber is arranged on the auxiliary exhaust pipeline and used for adjusting the pressure in the auxiliary exhaust pipeline.

In one embodiment, the tail gas treatment unit comprises a filter and a water curtain dust remover.

In one embodiment, pressure gauges are arranged on the primary exhaust pipeline and the auxiliary exhaust pipeline.

The utility model has the advantages that:

Drawings

Fig. 1 is a schematic structural diagram of a fermentation tank exhaust treatment system according to an embodiment of the present invention.

Wherein:

a fermenter 100; a gas separator 200; a primary exhaust line 300; a secondary exhaust line 400; a positive pressure bleed valve 410; an exhaust branch 420; a gas relief valve 421; a negative pressure generator 430; an air reservoir 440; an off-gas treatment unit 500.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail by the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The utility model provides a fermentation cylinder exhaust-gas treatment system, as shown in fig. 1, including the fermentation cylinder 100 that is used for the fermentation operation, be used for supplementary exhaust emissions's gas separator 200, be used for exhaust emissions's main exhaust pipeline 300 and supplementary exhaust pipeline 400 to and the tail gas processing unit 500 that handles is carried out to tail gas.

The number of the fermentation tank 100 and the gas separator 200 is plural, and usually the number of the fermentation tank 100 and the gas separator 200 is equal, that is, one fermentation tank 100 is equipped with one gas separator 200, and the gas separator 200 is mainly used for preliminary screening, filtering and auxiliary discharging of tail gas in the fermentation tank 100. In some cases where the fermentation tail gas is single, the fermentation tail gas may be directly discharged into the main exhaust pipeline 300 without the gas separator 200.

The main exhaust line 300 is communicated with a plurality of auxiliary exhaust lines 400, and the auxiliary exhaust lines 400 are provided with positive pressure air release valves 410. When the pressure in the main exhaust pipeline 300 is greater than a set value, the positive pressure air release valve 410 is opened; when the pressure in the main exhaust gas line 300 is less than the set value, the positive pressure purge valve 410 is closed. The primary exhaust line 300 and the secondary exhaust line 400 are both connected to the exhaust gas treatment unit 500. It is understood that there are two routes for the gas in the fermentor 100 to the off-gas treatment unit 500: firstly, directly discharge to tail gas processing unit 500 through main exhaust pipe 300, secondly discharge to tail gas processing unit 500 after passing through main exhaust pipe 300 and supplementary exhaust pipe 400 in proper order again.

During exhaust emission in the fermentation cylinder 100, if meet the circumstances such as the fan takes place the breakdown and shuts down, fermentation cylinder 100 presses material gassing, fermentation cylinder 100 disinfection mistake exhaust operation, can lead to the rising of main exhaust pipe 300 internal pressure, when main exhaust pipe 300 pressure is too high, can cause the gas refluence in the exhaust pipe back to the fermentation cylinder 100 in to cause the cross jar phenomenon of taking place between the fermentation cylinder 100. By providing the auxiliary exhaust line 400, when the pressure in the main exhaust line 300 rises to a set value or more, the positive pressure bleed valve 410 is opened, and the gas in the main exhaust line 300 can be exhausted from the auxiliary exhaust line 400. Because the auxiliary exhaust pipe 400 is not communicated with the main exhaust pipe 300 under normal conditions, when the pressure in the main exhaust pipe 300 rises, the pressure in the auxiliary exhaust pipe 400 is still at a lower level, and therefore when positive pressure occurs in the main exhaust pipe 300, the auxiliary exhaust pipe 400 can still normally exhaust, and backflow of tail gas is avoided.

The plurality of fermentors 100 or gas separators 200 are all connected to the same primary exhaust line 300, and the connection between the primary exhaust line 300 and the secondary exhaust line 400 is called a first connection node, and the connection between the primary exhaust line 300 and the secondary exhaust line is called a second connection node. At most one second communication node is arranged between two adjacent first communication nodes, that is, at most one auxiliary exhaust pipeline 400 is communicated with the main exhaust pipeline 300 between two fermentation tanks 100. It should be noted that the first connection node and the second connection node are only divided according to the area location, and do not represent that a specific connection structure is provided here.

In one embodiment, in order to further improve the discharge effect of the secondary exhaust pipe 400, the secondary exhaust pipe 400 further includes an exhaust branch 420, a gas filter and a gas overflow valve 421 are disposed on the exhaust branch 420, when the gas pressure in the secondary exhaust pipe 400 is higher than a set value, the gas overflow valve 421 is opened, and the gas in the secondary exhaust pipe 400 is discharged into the external environment through the exhaust branch 420. It should be noted that the set pressure of the gas relief valve 421 should be less than the set pressure of the positive pressure purge valve 410 to avoid the pressure in the secondary vent line 400 rising to the same level as the pressure in the primary vent line 300.

In one embodiment, in order to further reduce the pressure in the secondary exhaust pipe 400, a negative pressure generator 430 is disposed on the secondary exhaust pipe 400, and the negative pressure generator 430 is used to reduce the pressure in the secondary exhaust pipe 400.

In one embodiment, the secondary exhaust pipe 400 is provided with an air receiver 440, and the air receiver 440 is used to regulate the pressure in the secondary exhaust pipe 400.

In one embodiment, pressure gauges are arranged on the main exhaust pipeline and the auxiliary exhaust pipeline.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A fermenter vent gas treatment system, comprising: the fermentation tank is communicated with the gas separators, tail gas in the fermentation tank is discharged into the main exhaust pipeline through the gas separators, the gas separators are communicated with the main exhaust pipeline, and the gas separators are communicated with the main exhaust pipeline at a first communication node;

the main exhaust pipeline is communicated with the plurality of auxiliary exhaust pipelines, a positive pressure air release valve is arranged on each auxiliary exhaust pipeline, and the positive pressure air release valve is opened when the pressure in the main exhaust pipeline is greater than a set value; when the pressure in the main exhaust pipeline is smaller than a set value, the positive pressure air release valve is closed; the auxiliary exhaust pipeline is communicated with the main exhaust pipeline at a second communication node; at most one second communication node is arranged between every two adjacent first communication nodes; the main exhaust pipeline and the auxiliary exhaust pipeline are both communicated with the tail gas processing unit.

2. The fermenter according to claim 1, wherein the secondary vent line further comprises a vent branch, a gas filter and a gas overflow valve are disposed in the vent branch, the gas overflow valve is opened when the gas pressure in the secondary vent line is higher than a predetermined value, and the gas in the secondary vent line is exhausted to the external environment through the vent branch.

3. The fermenter vent gas treatment system of claim 1, wherein a negative pressure generator is disposed on the secondary vent line for reducing a pressure within the secondary vent line.

4. The fermenter exhaust gas treatment system of any of claims 1 to 3, wherein an air reservoir is provided on the secondary exhaust line for regulating the pressure in the secondary exhaust line.

5. The fermenter vent gas treatment system of claim 1, wherein the tail gas treatment unit comprises a filter and a water curtain dust collector.

6. The fermenter vent gas treatment system of claim 1, wherein a pressure gauge is disposed on the primary vent line and the secondary vent line.