CN211550649U

CN211550649U - Device for preventing fermentation liquor from flowing reversely

Info

Publication number: CN211550649U
Application number: CN201922486184.8U
Authority: CN
Inventors: 刘刚; 顾欣燕; 王淑会
Original assignee: Tianjin Development Zone Kunhe Biotechnology Co ltd
Current assignee: Tianjin Development Zone Kunhe Biotechnology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-22
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a device for preventing fermentation liquor from flowing reversely, which comprises a check valve and a check pad; the check valve comprises an upper cavity and a lower cavity which are connected by a hoop, a clamping cylinder is fixed in the center of the hoop, and a porous stainless steel fixing piece is arranged on the periphery of the hoop; the upper chamber is communicated with the air inlet pipe, and the lower chamber is communicated with the air outlet pipe; the air inlet pipe opening is provided with a blocking piece, and the size of the blocking piece is matched with the inner diameter of the air inlet pipe and is connected with a spring in the middle of the fixing piece; the check pad is fixed between the upper cavity and the lower cavity by the hoop and comprises an upper gasket and a lower gasket; the lower gasket is round with an opening in the middle and is positioned below the fixing piece; the upper gasket is in a circular ring shape, is positioned above the fixing piece and covers the opening of the lower gasket; the lower gasket can generate recoverable deformation under the thrust of the spring. The utility model discloses can prevent in the zymotic fluid gets into the check valve to avoid all needing to wash the check valve at every turn, and convenient to use.

Description

Device for preventing fermentation liquor from flowing reversely

Technical Field

The utility model relates to an experimental tool technical field, in particular to prevent device of zymotic fluid countercurrent.

Background

During the fermentation process, the gas inlet lines of the fermenter can usually be supplied with steam in addition to the gas. The air inlet pipeline extends into the bottom of the tank, so that the fermentation liquor can easily enter the pipeline in a reverse direction when the fermentation liquor in the pipeline is consumed. Check valves are commonly used to prevent the fermentation broth from entering the air filter (as shown in FIGS. 1-2).

The check valve comprises two chambers connected by a hoop, the chambers are respectively connected with the pipeline, and the hoop is fixed with a clamping cylinder at the center and a porous stainless steel fixing piece at the periphery. The air inlet pipe opening is provided with a plugging opening with a proper size, a stainless steel short cylinder is arranged behind the plugging opening, a spring is arranged outside the short cylinder, the rear end of the short cylinder enters a clamping cylinder in the middle of a stainless steel fixing piece, and the rear end of the spring is propped against the fixing piece. When air enters from the air inlet, the spring is compressed due to pressure, the blocking opening is retreated, the part of the short cylinder entering the clamping cylinder is increased, and the air passes through the check valve through the air inlet pipeline and then enters the fermentation tank body; when the fermentation liquor flows back to the check valve, the pressure plug of the spring blocks the air inlet pipe orifice, and the fermentation liquor cannot further flow backwards.

The check valve can prevent the fermentation liquor from flowing back to the check valve, but in practice, when the fermentation liquor flows back to the check valve, a spring, a check valve chamber, a short cylinder and a clamping cylinder of the check valve are soaked by the feed liquid, and then the short cylinder and the clamping cylinder are stuck due to the fact that the feed liquid is dried and solidified in the process of fermentation, the spring cannot rebound, the check valve cannot play a role, the cleaning is needed every time, and the operation is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model provides a device for preventing fermentation liquor from flowing against the flow, aiming at preventing the fermentation liquor from entering the check valve, thereby avoiding cleaning the check valve at every time.

The utility model comprises the following technical scheme: a device for preventing fermentation liquor from flowing backwards comprises a check valve and a check pad; the check valve comprises an upper cavity and a lower cavity which are connected by a hoop, a clamping cylinder is fixed in the center of the hoop, and a porous stainless steel fixing piece is arranged on the periphery of the hoop; the upper chamber is communicated with the air inlet pipe, and the lower chamber is communicated with the air outlet pipe; the air inlet pipe opening is provided with a blocking piece, and the size of the blocking piece is matched with the inner diameter of the air inlet pipe and is connected with a spring in the middle of the fixing piece; the check pad is fixed between the upper cavity and the lower cavity by the hoop and comprises an upper gasket and a lower gasket; the lower gasket is round with an opening in the middle and is positioned below the fixing piece; the upper gasket is in a circular ring shape, is positioned above the fixing piece and covers the opening of the lower gasket; the lower gasket can generate recoverable deformation under the thrust of the spring.

Preferably, the middle part of the blocking piece is provided with a connecting column; the spliced pole can insert a card section of thick bamboo in, a card section of thick bamboo and spliced pole all are located the spring. Air enters the air inlet pipe to apply thrust to the blocking piece to compress the spring, and the connecting column is inserted into the middle or the bottom of the clamping cylinder; when the liquid level rises, the lower gasket is closed and pushes the spring upwards, and the blocking piece is clamped in the air inlet pipe. The design of a card section of thick bamboo and connecting post makes the spring keep the movement track in vertical direction when compressed, and the jam piece of being convenient for resets, prevents that the skew inlet pipe mouth of pipe of jam piece.

Preferably, the outer edges of the upper gasket and the lower gasket are overlapped, so that the clamping hoop can fix the upper gasket and the lower gasket conveniently.

Preferably, the non-return pad is a rubber pad or a silica gel pad, has certain elasticity, and has a smooth surface and is easy to clean.

Preferably, the opening of the lower gasket is a continuous arc, and the outer angle of the arc is less than 180 degrees, so that the opening is continuous and wide when the spring applies a pushing force to the lower gasket, and the opening is easy to open.

The utility model has the advantages and positive effect:

1. the utility model discloses can prevent in the zymotic fluid gets into the check valve to avoid all needing to wash the check valve at every turn.

2. The utility model discloses the cost of manufacture is low, easy operation, convenient to use.

Drawings

Fig. 1 is a schematic sectional view of a conventional check valve.

Fig. 2 is a schematic plan view of a conventional check valve.

Fig. 3 is a schematic sectional structure of the present invention.

Fig. 4 is a schematic plan view of the present invention.

In the figure, 1-inlet pipe; 2-air outlet pipe; 3, clamping a hoop; 4-non-return pad; 41-upper gasket; 42-lower gasket; 43-opening; 5-blocking piece; 6-clamping the cylinder; 7-connecting column; 8-an upper chamber; 9-lower chamber.

Detailed Description

To further disclose the contents, features and functions of the present invention, the following examples are given in detail with reference to the accompanying drawings.

Example (b): referring to fig. 3, an apparatus for preventing reverse flow of fermentation broth comprises a check valve and a check pad 4; the check valve comprises an upper chamber 8 and a lower chamber 9 which are connected by a hoop 3, wherein a clamping cylinder 6 is fixed in the center of the hoop 3, and a porous stainless steel fixing piece is arranged on the periphery of the hoop; the upper chamber 8 is communicated with the air inlet pipe 1, and the lower chamber 9 is communicated with the air outlet pipe 2; a blocking piece 5 is arranged at the opening of the air inlet pipe 1, and the size of the blocking piece 5 is matched with the inner diameter of the air inlet pipe 1 and is connected with a spring in the middle of the fixing piece; the check pad 4 is fixed between the upper chamber 8 and the lower chamber 9 by the hoop 3, and the check pad 4 is a silica gel pad and comprises an upper gasket 41 and a lower gasket 42; the lower gasket 42 is a round shape with an opening in the middle, and the lower gasket 42 is positioned below the fixing sheet; the upper gasket 41 is in a circular ring shape, the upper gasket 41 is positioned above the fixing piece and covers the opening 43 of the lower gasket 42; the lower pad 42 is capable of being restorably deformed under the urging force of the spring.

Referring to fig. 4, a connecting column 7 is arranged in the middle of the blocking piece 5; the spliced pole 7 can insert in a card section of thick bamboo 6, a card section of thick bamboo 6 and spliced pole 7 are hollow cylinder and all are located inside the spring. The outer edges of the upper and

lower spacers

41, 42 coincide. The opening 43 of the lower gasket 42 is a continuous arc having an outer angle of 30 degrees. The radius R1 of the opening 43 is 12mm, and the inner diameter R2 of the upper gasket 41 is 10 mm.

The working principle is as follows: when air enters from top to bottom, the air flow pushes the blocking piece to compress the spring, the spring applies pushing force to the lower gasket to deform the lower gasket so that the opening is opened, and the air can smoothly enter the lower chamber through the opening; when the feed liquid flows from bottom to top, the feed liquid impacts the lower gasket to close the opening, so that the feed liquid is prevented from continuously flowing backwards into the check valve. Thereby avoiding the trouble of cleaning each time.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention. All of which fall within the scope of the present invention.

Claims

1. A device for preventing fermentation liquor from flowing backwards comprises a check valve and a check pad; the check valve comprises an upper cavity and a lower cavity which are connected by a hoop, a clamping cylinder is fixed in the center of the hoop, and a porous stainless steel fixing piece is arranged on the periphery of the hoop; the upper chamber is communicated with the air inlet pipe, and the lower chamber is communicated with the air outlet pipe; intake pipe mouth department is equipped with the closure plate, the closure plate size is connected its characterized in that with the internal diameter phase-match of intake pipe and the spring at stationary blade middle part: the check pad is fixed between the upper cavity and the lower cavity by the hoop and comprises an upper gasket and a lower gasket; the lower gasket is round with an opening in the middle and is positioned below the fixing piece; the upper gasket is in a circular ring shape, is positioned above the fixing piece and covers the opening of the lower gasket; the lower gasket can generate recoverable deformation under the thrust of the spring.

2. The apparatus for preventing reverse flow of fermentation broth according to claim 1, wherein: the middle part of the blocking piece is provided with a connecting column; the spliced pole can insert a card section of thick bamboo in, a card section of thick bamboo and spliced pole all are located the spring.

3. The apparatus for preventing reverse flow of fermentation broth according to claim 1, wherein: the outer edges of the upper gasket and the lower gasket are overlapped.

4. The apparatus for preventing reverse flow of fermentation broth according to claim 1, wherein: the non-return pad is a rubber pad or a silica gel pad.

5. The apparatus for preventing reverse flow of fermentation broth according to claim 1, wherein: the opening of the lower gasket is in a continuous arc shape.

6. The apparatus for preventing reverse flow of fermentation broth according to claim 5, wherein: the outer angle of the arc is less than 180 degrees.