CN217025926U - Device applied to anaerobic tank discharging and positive and negative pressure protection - Google Patents
Device applied to anaerobic tank discharging and positive and negative pressure protection Download PDFInfo
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- CN217025926U CN217025926U CN202220850874.6U CN202220850874U CN217025926U CN 217025926 U CN217025926 U CN 217025926U CN 202220850874 U CN202220850874 U CN 202220850874U CN 217025926 U CN217025926 U CN 217025926U
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Abstract
The utility model provides a device applied to anaerobic tank discharging and positive and negative pressure protection, which solves the technical problem that the existing positive and negative pressure protector is incompatible with overflow. The box body is arranged on the outer side wall of the anaerobic tank, a partition plate is vertically arranged in the box body, the box body is divided into two cavities, liquid is filled in the cavity close to one side of the anaerobic tank, and the tail end of an overflow pipe of the tank body is inserted into the cavity and is positioned below the liquid level; the bottom surface of the other cavity is provided with an overflow liquid discharge pipe. The clapboard is provided with an opening and is horizontally provided with a middle overflow pipe. The normal overflow of anaerobic digestion liquid is realized through the box body and each pipeline structure, and the positive and negative pressure protection is carried out on the anaerobic tank body; meanwhile, the anaerobic tank can be used for heating in the fitting installation, the problem of icing of overflow liquid in winter is avoided, and the anaerobic tank can be widely applied to the technical field of microbial fermentation.
Description
Technical Field
The utility model relates to the technical field of microbial fermentation, in particular to a device applied to anaerobic tank discharging and positive and negative pressure protection.
Background
In the organic waste anaerobic fermentation engineering, biogas is generated in an anaerobic fermentation tank (hereinafter referred to as anaerobic tank), a certain biogas pressure is formed at the top of the anaerobic tank in the process of collecting biogas by the anaerobic tank, and a positive and negative pressure protector is generally arranged to ensure that the anaerobic tank is within a safe pressure range (generally not more than 10 KPa). The positive and negative pressure protector generally adopts a water seal mode, the used liquid is water or antifreeze, and the loss is caused along with the outflow of biogas airflow in the process of starting pressure protection, so that the normal use is influenced. In addition, when the temperature is low in winter, water vapor contained in the methane gradually enters the anti-freezing solution used by the positive and negative pressure protector along with the time, so that the anti-freezing solution is easy to freeze to cause the failure of the positive and negative pressure protector.
Further, for an anaerobic tank with a lower feeding part and an upper discharging part, a U-shaped pipe is generally adopted as an overflow pipeline. Normally, the U-shaped tube stores overflow liquid with a certain height. The anaerobic digestion solution can play a role in protecting positive and negative pressure while normal overflow of the anaerobic digestion solution is not influenced.
When the anaerobic tank has positive pressure or negative pressure and exceeds the pressure range of the U-shaped pipe, digestive juice in the U-shaped pipe is discharged or sucked out, the top of the anaerobic tank is communicated with the outside air, and the pressure in the tank is kept balanced. But this results in the release of biogas within the tank. For the project of using the produced biogas for resource utilization of biological energy, once the flammable and combustible biogas is diffused, great economic loss is generated, and certain safety risk exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the background technology and provides the device which has a simple structure and can prevent the anaerobic tank from freezing and protect the positive pressure and the negative pressure.
Therefore, the utility model provides a device applied to anaerobic tank discharging and positive and negative pressure protection, which comprises a tank body, a tank body overflow pipe and an overflow liquid discharge pipe;
the box body is arranged on the outer side wall of the anaerobic tank, and a partition plate is vertically arranged in the box body; the box body is divided into two cavities by the partition plate, the cavity close to one side of the anaerobic tank is a first cavity, and the cavity far away from one side of the anaerobic tank is a second cavity; the first cavity is filled with liquid, and the tail end of the overflow pipe of the tank body is inserted into the first cavity and is positioned below the liquid level; the overflow pipe of the tank body is communicated with the inside of the anaerobic tank, and the interface is level with the liquid level in the tank; the bottom surface of the second cavity is provided with an opening, and the overflow liquid discharge pipe is installed;
the partition plate is provided with an opening, and a middle overflow pipe is horizontally arranged on the partition plate; the intermediate overflow pipe is communicated with the first cavity and the second cavity;
one side of the box body, which is close to the anaerobic tank, is a profile curved surface, the profile of the cross section of the box body is consistent with the profile of the outer side surface of the anaerobic tank, and the box body is attached to the outer side wall of the anaerobic tank.
Preferably, the ratio of the volume of the first cavity to the volume of the second cavity is 2.
Preferably, the opening position of the partition plate and the positions of the overflow pipe of the tank body and the connector of the anaerobic tank are the same in height.
Preferably, the diameter of the tank overflow pipe is the same as that of the intermediate overflow pipe.
Preferably, the distance between the center of the opening position of the partition plate and the upper edge of the partition plate is less than or equal to 500 mm.
Preferably, the ratio of the pipe diameter of the overflow liquid discharge pipe to the pipe diameter of the overflow pipe of the tank body is 1.1.
Preferably, the intermediate overflow tube is a bellows.
Preferably, the lower part of the anaerobic tank is provided with a feed inlet, and the top of the anaerobic tank is provided with an air outlet; the upper part of the box body is open and communicated with the outside atmosphere.
Preferably, the lower part of the anaerobic tank is provided with a feed inlet, and the top of the anaerobic tank is provided with an air outlet; the upper part of the box body is provided with a ventilation pipeline and is communicated with the external atmosphere; and a pipeline rain cap is arranged at the outlet of the ventilation pipeline.
Preferably, the medial surface of box still is equipped with the inlet, inlet department installs the ball-cock assembly.
The utility model has the following beneficial effects:
the utility model realizes the normal overflow of anaerobic digestion liquid through the box body and each pipeline structure, and protects the positive pressure and the negative pressure of the anaerobic tank body. When the anaerobic tank has large positive pressure, the methane can be discharged through the water seal of the tank body, the overflow liquid can be effectively reduced to be discharged along with the methane, in addition, the tank body is attached to the anaerobic tank, the temperature of the anaerobic tank can be utilized to avoid the overflow liquid from being frozen in winter, and the cost and the labor intensity are reduced.
Drawings
FIG. 1 is a schematic front view of the structure in embodiment 1 of the present invention;
FIG. 2 is a schematic top view of the structure in embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a case in embodiment 2 of the present invention;
the mark in the figure is: 1. the device comprises a box body, a partition plate, a tank body overflow pipe, a middle overflow pipe, a tank overflow liquid discharge pipe, an anaerobic tank, an air outlet, a pipeline rain-proof cap, a pipeline 102, a ventilation pipeline 103, a liquid inlet and a ball float valve 104.
Detailed Description
The utility model is further described below in conjunction with the drawings and the specific embodiments to assist in understanding the contents of the utility model. The method used in the utility model is a conventional method if no special provisions are made; the raw materials and the apparatus used were, unless otherwise specified, conventional commercially available products.
Example 1
The embodiment provides a device applied to anaerobic tank discharging and positive and negative pressure protection, and mainly comprises a box body 1, a tank body overflow pipe 3 and an overflow liquid discharge pipe 5 as shown in figure 1.
Wherein, in order to solve the problem of low temperature freezing, the box body 1 is arranged on the outer side wall of the anaerobic tank 6. Referring to fig. 2, one side of the box body 1 close to the anaerobic tank 6 is a profile curved surface, and in the present embodiment, the anaerobic tank 6 is a cylindrical tank body, so that the corresponding side of the box body 1 is processed into an arc surface, so that the box body 1 can be attached to the outer side wall of the anaerobic tank 6, and the problem of low temperature can be solved by using heat generated in the fermentation process of the anaerobic tank 6.
A partition plate 2 is vertically installed inside the box body 1. The box body is divided into two cavities by the partition plate 2, the cavity close to one side of the anaerobic tank is a first cavity, and the cavity far away from one side of the anaerobic tank is a second cavity; preferably, for optimum design, the ratio of the volume of the first chamber to the volume of the second chamber is set to 2. Wherein, the first cavity is filled with digestive juice, the overflow pipe 3 of the tank body is of a bent pipe structure, the tail end of the overflow pipe is vertically inserted into the first cavity downwards, and the bottom pipe orifice is arranged below the liquid level. The root of the tank overflow pipe 3 is communicated with the inside of the anaerobic tank 6, and the joint is parallel and level with the liquid level of the digestive juice in the tank. The bottom surface of the second cavity is provided with an opening and is provided with an overflow liquid discharge pipe 5.
The partition plate 2 is provided with an opening and is horizontally provided with an intermediate overflow pipe 4. The middle overflow pipe 4 is communicated with the first cavity and the second cavity at the left side and the right side; preferably, in order to ensure that the digestive juice overflows smoothly, the opening position of the partition plate 2 and the joint positions of the tank overflow pipe 3 and the anaerobic tank 6 are designed to be as high as each other. Further, the distance between the center of the opening position of the partition plate 2 and the upper edge of the partition plate 2 is 500mm or less.
Preferably, the diameter of the tank overflow pipe 3 is the same as that of the intermediate overflow pipe 4, and the ratio of the diameter of the overflow liquid discharge pipe 5 to that of the tank overflow pipe 3 is 1.1.
It should be noted that the anaerobic tank 6 used in this embodiment is designed to feed from the lower part and discharge from the upper part, and the anaerobic tank 6 is provided with a feed inlet (not shown) at the lower part and a biogas outlet 7 at the top. For this purpose, the upper part of the tank 1 is designed to be open and is connected to the outside atmosphere, so that the fermentation gas passing through the water seal can be discharged.
The working process is as follows: anaerobic digestion liquid flows out from a tank body overflow pipe 3 of the anaerobic tank and enters the first cavity of the tank body 1, the liquid level gradually rises until the digestion liquid flows into the second cavity through an intermediate overflow pipe 4 and is discharged from an overflow liquid discharge pipe 5. When the methane pressure at the top of the anaerobic tank exceeds 10KPa, the methane can pass through the tank body overflow pipe 3 of the anaerobic tank to be discharged through digestive juice, and due to the volume proportion distribution of the two sides of the tank body 1, the digestive juice overflowing from the first cavity of the tank body 1 is less when the methane is discharged, the liquid level of the tank body 1 (the first cavity) is basically not influenced, and the phenomenon that the liquid level falls below the orifice of the overflow pipe after the methane overflows and is depressurized, so that the water seal is failed, and the methane is diffused from the tank body overflow pipe 3 of the anaerobic tank.
Example 2
In the present embodiment, in addition to embodiment 1, it is preferable that, as shown in fig. 3, a ventilation duct 102 is additionally provided in an upper portion of the case 1 and is kept in communication with the outside atmosphere. The outlet of the vent pipe 102 is provided with a pipe rain cap 101 to prevent external contaminants from falling into the first cavity and being sucked into the anaerobic tank 6 under negative pressure. Furthermore, the intermediate overflow pipe 4 is designed as a corrugated pipe, so that the position of the pipe orifices at the two ends can be adjusted in a small range.
Preferably, the inner side surface of the box body 1 is further provided with a liquid inlet 103, and a ball float valve 104 is installed at the liquid inlet, so that automatic liquid supplementing operation can be performed on the water seal before the water seal is damaged, and the water seal is prevented from losing efficacy.
In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", and the like are used in an orientation or positional relationship indicated on the basis of the orientation or positional relationship shown in the drawings, which is 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 in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present invention.
However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (10)
1. A device applied to anaerobic tank discharging and positive and negative pressure protection comprises a tank body, a tank body overflow pipe and an overflow liquid discharge pipe;
the anaerobic tank is characterized in that the tank body is arranged on the outer side wall of the anaerobic tank, and a partition plate is vertically arranged in the tank body; the box body is divided into two cavities by the partition plate, the cavity close to one side of the anaerobic tank is a first cavity, and the cavity far away from one side of the anaerobic tank is a second cavity; the first cavity is filled with liquid, and the tail end of the overflow pipe of the tank body is inserted into the first cavity and is positioned below the liquid level; the overflow pipe of the tank body is communicated with the inside of the anaerobic tank, and the interface of the overflow pipe of the tank body is level to the liquid level in the tank; the bottom surface of the second cavity is provided with an opening, and the overflow liquid discharge pipe is installed;
the partition plate is provided with an opening, and a middle overflow pipe is horizontally arranged on the partition plate; the intermediate overflow pipe is communicated with the first cavity and the second cavity;
one side of the box body, which is close to the anaerobic tank, is a profile curved surface, the profile of the cross section of the box body is consistent with the profile of the outer side surface of the anaerobic tank, and the box body is attached to the outer side wall of the anaerobic tank.
2. The device for anaerobic tank discharging and positive and negative pressure protection as claimed in claim 1, wherein the ratio of the volume of the first chamber to the volume of the second chamber is 2.
3. The device of claim 1, wherein the opening of the partition and the overflow pipe of the tank are at the same height as the connecting position of the anaerobic tank.
4. The device for anaerobic tank discharging and positive and negative pressure protection as claimed in claim 1 or 3, wherein the tank overflow pipe has the same diameter as the intermediate overflow pipe.
5. The device for anaerobic tank discharging and positive and negative pressure protection as claimed in claim 4, wherein the distance between the center of the opening position of the partition plate and the upper edge of the partition plate is less than or equal to 500 mm.
6. The device for anaerobic tank discharging and positive and negative pressure protection as claimed in claim 4, wherein the ratio of the pipe diameter of the overflow liquid discharge pipe to the pipe diameter of the tank overflow pipe is 1.1.
7. The device of claim 1, wherein the intermediate overflow pipe is a bellows.
8. The device applied to the discharging and positive-negative pressure protection of the anaerobic tank as claimed in claim 1, wherein the lower part of the anaerobic tank is provided with a feeding hole, and the top of the anaerobic tank is provided with an air outlet; the upper part of the box body is in an open design and is communicated with the outside atmosphere.
9. The device applied to the discharging and positive-negative pressure protection of the anaerobic tank as claimed in claim 1, wherein the lower part of the anaerobic tank is provided with a feeding hole, and the top of the anaerobic tank is provided with an air outlet; the upper part of the box body is provided with a ventilation pipeline and is communicated with the external atmosphere; and a pipeline rain cap is arranged at the outlet of the ventilation pipeline.
10. The device applied to the discharge and positive-negative pressure protection of the anaerobic tank as claimed in claim 1, wherein the inner side surface of the tank body is further provided with a liquid inlet, and a ball float valve is installed at the liquid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850874.6U CN217025926U (en) | 2022-04-14 | 2022-04-14 | Device applied to anaerobic tank discharging and positive and negative pressure protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850874.6U CN217025926U (en) | 2022-04-14 | 2022-04-14 | Device applied to anaerobic tank discharging and positive and negative pressure protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217025926U true CN217025926U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220850874.6U Active CN217025926U (en) | 2022-04-14 | 2022-04-14 | Device applied to anaerobic tank discharging and positive and negative pressure protection |
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| Country | Link |
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| CN (1) | CN217025926U (en) |
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2022
- 2022-04-14 CN CN202220850874.6U patent/CN217025926U/en active Active
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