CN210620798U

CN210620798U - Biogas fermentation three-phase separation device

Info

Publication number: CN210620798U
Application number: CN201921350050.7U
Authority: CN
Inventors: 万里平; 黄振侠; 龚贵金
Original assignee: Jiangxi Zhenghe Ecological Agriculture Co ltd
Current assignee: Jiangxi Zhenghe Ecological Agriculture Co ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-05-26
Anticipated expiration: 2029-08-20

Abstract

A three-phase separation device for biogas fermentation belongs to the technical field of biogas fermentation and comprises a tank body and a separation part. The inner edge of the top of the tank body is provided with a groove. The separation part comprises a flow guide pipe, a first-stage separation cover, a connecting rod, a second-stage separation cover and a flange. The draft tube is connected to the bottom of the first-stage separation cover and extends downwards to a position below the liquid level of the fermentation product, and the first-stage separation cover is of an inverted cone structure. The second-stage separation cover is arranged above the first-stage separation cover and provided with a straight cylinder section and an inner contraction section, the straight cylinder section is attached to the inner wall of the tank body, the inner contraction section is inclined to contract towards the center of the tank body, the bottom of the inner contraction section is crossed with the projection area of the first-stage separation cover, and the inner contraction section of the second-stage separation cover is vertically spaced from the first-stage separation cover. The top of the second-stage separation cover connected between the first-stage separation cover and the second-stage separation cover through the connecting rod is provided with a flange, and the whole separation part is placed in a groove of the fermentation tank through the flange.

Description

Biogas fermentation three-phase separation device

Technical Field

The utility model belongs to the technical field of biogas fermentation, especially, relate to a biogas fermentation three-phase separation device.

Background

The three-phase separator is an important device in the field of methane fermentation, components such as impurity gas, liquid, solid particles and the like are usually included in materials rising in a methane fermentation reaction area, the methane collection is influenced, the methane needs to be separated from the materials before the methane is collected, and the three-phase separator is used.

Disclosure of Invention

The utility model provides a biogas fermentation three-phase separation device, the utility model solves the technical problem that the following technical scheme is adopted to realize:

a three-phase separation device for biogas fermentation comprises a tank body and a separation part. The inner edge of the top of the tank body is provided with a groove, and the groove is provided with a separating part. The separation part comprises a flow guide pipe, a first-stage separation cover, a connecting rod, a second-stage separation cover and a flange. The honeycomb duct is connected in the bottom of one-level separation cover and downwardly extending to below the fermented product liquid level, and one-level separation cover is the back taper structure, and the top of one-level separation cover and jar side wall have the lateral part clearance that is used for flowing through fermentation gas, and when fermentation gas upward flow, most fermentation gas upwards flows along the lower surface of one-level separation cover. The top of the first-stage separation cover is provided with a second-stage separation cover which is provided with a straight cylinder section and an inward shrinkage section, the straight cylinder section is attached to the inner wall of the tank body, the inward shrinkage section is inclined to shrink towards the center of the tank body, the bottom of the inward shrinkage section is crossed with the projection area of the first-stage separation cover, and in the vertical direction, the inward shrinkage section of the second-stage separation cover is provided with a vertical gap with the first-stage separation cover, and the vertical gap is equal to the lateral gap so as to avoid the sudden change of the flow velocity of the fermentation gas at the position. The top of the second-stage separation cover connected between the first-stage separation cover and the second-stage separation cover through the connecting rod is provided with a flange, and the whole separation part is placed in a groove of the fermentation tank through the flange.

The draft tube is communicated with the first-stage separation cover in a hollow mode, the inner contraction section of the second-stage separation cover separates the fermentation gas again, the vaporized components and the solid particles flow into the upper surface of the first-stage separation cover along the lower surface of the second-stage separation cover and then flow back to the fermented substances through the inner cavity of the draft tube.

The side gap is controlled to be 15% -20% of the inner diameter of the tank body, and the vertical gap is equal to the side gap.

2~4 bosss are evenly distributed on the inner side of the top of the secondary separation cover, and the bosss are used for carrying or hanging when the separation part is placed.

The number of the connecting rods is 3-4, and the connecting rods are uniformly distributed above the primary separation cover in an array mode.

The utility model has the advantages that:

the utility model has novel structure, stronger gas, liquid and solid three-phase separation capability, and can be effectively used for the three-phase separation operation of the methane fermentation device.

Drawings

Fig. 1 is a schematic view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

in the figure: 10. the tank body 11, the groove 20, the separating part 21, the draft tube 22, the primary separating cover 23, the connecting rod 24, the secondary separating cover 25, the flange 26 and the boss.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 3, a three-phase separation device for biogas fermentation includes a tank 10 and a separation part 20, which are, of course, other necessary devices of the biogas fermentation tank, such as a feed inlet, a discharge outlet, an upper cover, a gas collecting hood, etc., and also necessary devices of the present technical solution, and in view of the technical features of the common general knowledge in the art, a person skilled in the art can easily think on the basis of the present description that these devices need to be equipped for the biogas fermentation tank, and for the sake of brevity, these technical features will not be described in detail in the present description.

The inner edge of the top of the can body 10 is provided with a groove 11, and the separating part 20 is arranged on the groove 11.

The separation part 20 includes a draft tube 21, a primary separation cover 22, a connecting rod 23, a secondary separation cover 24, a flange 25, and a boss 26. The draft tube 21 is connected to the bottom of the first-stage separation cover 22 and extends downwards to a position below the liquid level of the fermented product, the draft tube 21 is communicated with the first-stage separation cover 22 in a hollow mode, the first-stage separation cover 22 is of an inverted cone-shaped structure, a side gap for flowing the fermented gas is formed between the top of the first-stage separation cover 22 and the side wall of the tank body 10, the side gap is controlled to be 15% -20% of the inner diameter of the tank body 10, when the fermented gas flows upwards, most of the fermented gas flows upwards along the lower surface of the first-stage separation cover 22, at the moment, most of vaporized components and solid particles are attached to the lower surface of the first-stage separation cover 22, and when certain weight is accumulated.

The second-stage separation cover 24 is arranged above the first-stage separation cover 22, the second-stage separation cover 24 is provided with a straight cylinder section and an inward-contracting section, the straight cylinder section is attached to the inner wall of the tank body 10, the inward-contracting section is inclined and contracted towards the center of the tank body 10, the bottom of the inward-contracting section is crossed with the projection area of the first-stage separation cover 22, in the vertical direction, the inward-contracting section of the second-stage separation cover 24 is vertically spaced from the first-stage separation cover 22, and the vertical spacing is equal to the lateral spacing, so that the flow velocity of the fermentation gas at the position is prevented from being suddenly changed. The fermentation gas separated once by the first-stage separation hood 22 flows to the upper part of the second-stage separation hood 22 through the vertical gap via the inward contraction section of the second-stage separation hood 22, at this time, the fermentation gas is separated once again by the inward contraction section of the second-stage separation hood 24, the vaporized components and the solid particles flow to the upper surface of the first-stage separation hood 22 along the lower surface of the second-stage separation hood 24, and then flow back to the fermentation product via the inner cavity of the draft tube 21.

The first-stage separation cover 22 is connected with the second-stage separation cover 24 through connecting rods 23, and the number of the connecting rods 23 is 3-4, and the connecting rods are uniformly distributed above the first-stage separation cover 22 in an array mode. The secondary separation hood 24 has a flange 25 at the top, and the entire separation part 20 is seated in the groove 11 of the fermenter 10 through the flange 25. 2~4 bosss 26 of inboard equipartition in second grade separation cover 24 top, boss 26 are used for the transport or the hanging when separation portion 20 lays.

The above embodiments mainly describe the three-phase separation device for biogas fermentation of the present invention. While only limited embodiments and features have been described, it will be understood by those skilled in the art that the invention may be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present embodiments are to be considered as illustrative and not restrictive, and various modifications and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A biogas fermentation three-phase separation device comprises a tank body (10) and a separation part (20), and is characterized in that a groove (11) is arranged on the inner edge of the top of the tank body (10), the separation part (20) comprises a guide pipe (21), a primary separation cover (22), a connecting rod (23), a secondary separation cover (24) and a flange (25), the guide pipe (21) is connected to the bottom of the primary separation cover (22) and extends downwards to the position below the liquid level of a fermented product, the primary separation cover (22) is of an inverted cone structure, a side gap for flowing fermentation gas is formed between the top of the primary separation cover (22) and the side wall of the tank body (10), the secondary separation cover (24) is arranged above the primary separation cover (22), the secondary separation cover (24) is provided with a straight cylinder section and an inward-contracting section, the straight cylinder section is attached to the inner wall of the tank body (10), the inward-contracting section is inclined, the inner contraction section of the second-stage separation cover (24) is vertically spaced from the first-stage separation cover (22), the first-stage separation cover (22) is connected with the second-stage separation cover (24) through a connecting rod (23), a flange (25) is arranged at the top of the second-stage separation cover (24), and the separation part (20) is placed in the groove (11) of the tank body (10) through the flange (25).

2. The biogas fermentation three-phase separation device according to claim 1, wherein the draft tube (21) is in hollow communication with the primary separation hood (22).

3. The three-phase separation device for biogas fermentation according to claim 1, wherein the side gap is controlled to be 15% to 20% of the inner diameter of the tank body (10), and the vertical gap is equal to the side gap.

4. The biogas fermentation three-phase separation device according to claim 1, wherein the connecting rods (23) are uniformly distributed above the primary separation hood (22) in an array of 3-4.

5. The three-phase separation device for biogas fermentation according to claim 1, wherein 2-4 bosses (26) are uniformly distributed on the inner side of the top of the secondary separation cover (24).