CN212051355U

CN212051355U - Biogas fermentation tank with pressure protection assembly

Info

Publication number: CN212051355U
Application number: CN202020450791.9U
Authority: CN
Inventors: 高天健; 范德强; 陈应华; 毛国思; 陈林; 罗晓燕
Original assignee: Guizhou Gengze Agricultural Technology Co ltd
Current assignee: Guizhou Gengze Agricultural Technology Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-01
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a biogas fermentation cylinder with pressure protection subassembly, which comprises a tank body, the position that jar body lateral wall is close to the bottom is equipped with the inlet pipe rather than inside intercommunication, the position that jar body lateral wall is close to the top is equipped with the fluid-discharge tube rather than inside intercommunication, jar body top is equipped with the main marsh gas pipe rather than inside intercommunication, jar body top still is equipped with the business turn over pipe rather than inside intercommunication, three-way pipe and main marsh gas pipe intercommunication are passed through to the one end that jar body was kept away from to the inlet pipe, be equipped with the connecting pipe on another export of three-way pipe, from the one end that is close to the three-way pipe to the one end of keeping away from the three-way pipe on the connecting pipe be equipped with pneumatic valve and normally open valve in proper order, jar. The utility model discloses simple structure, low cost, degree of automation are high and reliable.

Description

Biogas fermentation tank with pressure protection assembly

Technical Field

The utility model belongs to fermentation cylinder protection device field, concretely relates to biogas fermentation cylinder with pressure protection subassembly.

Background

A large or super-large biogas fermentation tank is a device which utilizes the fermentation function to convert organic matters in livestock and poultry manure into biogas through fermentation, generates high-quality fuel and treats the livestock and poultry manure and livestock farm sewage without pollution, and is a common device for treating the pollution of the livestock and poultry manure.

The existing large or super-large biogas fermentation tank is not provided with a pressure protection device or a simple pressure protection device. If the pressure of the fermentation tank is increased or the negative pressure is increased and exceeds the designed pressure, serious safety accidents such as fermentation tank damage, large amount of biogas slurry overflow or fermentation tank collapse can occur.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a biogas fermentation tank with pressure protection component, which is simple in structure, low in cost, high in automation degree and reliable, and is aimed at the defects of the prior art.

The utility model adopts the technical proposal that: the utility model provides a biogas fermentation cylinder with pressure protection subassembly, includes a jar body, the position that jar external wall is close to the bottom is equipped with the inlet pipe rather than inside intercommunication, the position that jar external wall is close to the top is equipped with the fluid-discharge tube rather than inside intercommunication, jar body top is equipped with the main marsh gas pipe rather than inside intercommunication, jar body top still is equipped with the business turn over pipe rather than inside intercommunication, the one end that jar body was kept away from to the inlet pipe is passed through three-way pipe and main marsh gas pipe intercommunication, be equipped with the connecting pipe on another export of three-way pipe, be equipped with pneumatic valve and normally open valve from the one end that is close to the three-way pipe to the one end of keeping away from the three-way pipe on the connecting pipe in proper order, jar.

In one embodiment, the inlet and outlet pipes are further provided with inlet and outlet valves.

In one embodiment, the side surface of the inlet pipe and the side surface of the outlet pipe are provided with maintenance and debugging valves communicated with the inlet pipe and the outlet pipe.

In one embodiment, the measuring instrument is a DCS instrument.

The beneficial effects of the utility model reside in that: the safety is improved, and the production safety is guaranteed; the utility model solves the problems that the traditional (special) large-scale biogas fermentation tank is not strict in safety and is easy to break down, the safe use of the fermentation tank cannot be reached, and safety accidents are easy to happen, and the safety of the whole factory or fermentation system is influenced, and provides a device with simple structure, low cost and simple operation; when in use, the device is arranged in the fermentation tank, the problems of complicated pressure control and easy accident occurrence of a (special) large-scale biogas fermentation tank can be effectively solved, and the device has the advantages of simple structure, low cost, high automation degree and stronger practicability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a tank body; 2. a feed pipe; 3. a liquid discharge pipe; 4. a main biogas pipe; 5. an inlet pipe and an outlet pipe; 6. a three-way pipe; 7. a connecting pipe; 8. a pneumatic valve; 9. a normally open valve; 10. a pressure sensor; 11. a measuring instrument; 12. an inlet valve and an outlet valve; 13. and (5) overhauling and debugging the valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in figure 1, the biogas fermentation tank with the pressure protection component comprises a tank body 1, a feeding pipe 2 communicated with the interior of the tank body 1 is arranged at the position, close to the bottom, of the outer side wall of the tank body 1, a liquid discharge pipe 3 communicated with the inside of the tank body 1 is arranged at the position, close to the top, of the outer side wall of the tank body 1, a main biogas pipe 4 communicated with the inside of the tank body 1 is arranged at the top of the tank body 1, the top of the tank body 1 is also provided with an inlet and outlet pipe 5 communicated with the interior of the tank body, one end of the inlet and outlet pipe 5 far away from the tank body 1 is communicated with a main biogas pipe 4 through a three-way pipe 6, a connecting pipe 7 is arranged at the other outlet of the three-way pipe 6, a pneumatic valve 8 and a normally open valve 9 are sequentially arranged on the connecting pipe 7 from one end close to the three-way pipe 6 to one end far away from the three-way pipe 6, the top of the tank body 1 is also provided with a pressure sensor 10, and the pressure sensor 10 is connected with the pneumatic valve 8 through a measuring instrument 11.

In this embodiment, the inlet and outlet pipes 5 are further provided with an inlet and outlet valve 12.

In this embodiment, the side of the inlet and outlet pipe 5 is provided with a maintenance and debugging valve 13 communicated with the inlet and outlet pipe.

In this embodiment, the measuring instrument 11 is a DCS instrument.

The other end of the connecting pipe 7 of the fermentation tank is connected with a container of protective gas of the tank body 1. Under normal conditions, fermentation raw materials are input into the bottom of the tank body 1 through the feeding pipe 2, and fermentation liquor is discharged out of the tank body 1 through the liquid discharge pipe 3 after fermentation. If the drain 3 fails, the tank 1 will be subjected to an unreasonably positive or negative pressure, which will destroy the entire tank 1. After the device is additionally arranged, biogas generated by fermentation enters the main biogas pipe 4 through the inlet and outlet pipe 5 and the three-way pipe 6 and is conveyed to the biogas storage device. At this time, the pressure sensor 10 provided on the top of the can body 1 transmits a signal to the air-operated valve 8 through the gauge 11, controlling the air-operated valve 8 to be opened. At this time, the external shielding gas enters the tank 1 through the normally open valve 9, so that the tank 1 is protected. When the positive pressure and the negative pressure in the tank body 1 are normal, the pneumatic valve 8 is closed.

The measuring instrument 11 used by the device is a DCS instrument which is produced by Chongqing Chuan instrument automation corporation, STR82D-11CC120(Y) series instrument; the electric valve 8 is an electric valve which is produced by Chongqingchuan instrument Automation GmbH and has the model of ZKJW-DN 150; the overhaul and debugging valve 13 is a methane safety valve with the model of 020, which is produced by an elegance methane equipment accessory factory. The various instruments and valves of the device are described in more detail, but are not limited to the above manufacturers and models.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not 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.

Claims

1. The utility model provides a biogas fermentation cylinder with pressure protection subassembly, includes a jar body, the position that jar external wall is close to the bottom is equipped with the inlet pipe rather than inside intercommunication, the position that jar external wall is close to the top is equipped with the fluid-discharge tube rather than inside intercommunication, jar body top is equipped with the main marsh gas pipe rather than inside intercommunication, its characterized in that: the biogas digester is characterized in that an inlet and outlet pipe communicated with the interior of the tank body is further arranged at the top of the tank body, one end, far away from the tank body, of the inlet and outlet pipe is communicated with a main biogas pipe through a three-way pipe, a connecting pipe is arranged at the other outlet of the three-way pipe, a pneumatic valve and a normally open valve are sequentially arranged on the connecting pipe from one end, close to the three-way pipe, to the end, far away from the three-way pipe, of the connecting pipe, and a pressure sensor is further arranged.

2. The biogas fermentation tank with pressure protection assembly as claimed in claim 1, wherein: and the inlet and outlet pipe is also provided with an inlet and outlet valve.

3. The biogas fermentation tank with pressure protection assembly as claimed in claim 2, wherein: and the side surfaces of the inlet pipe and the outlet pipe are provided with maintenance and debugging valves communicated with the inlet pipe and the outlet pipe.

4. The biogas fermentation tank with pressure protection assembly as claimed in claim 1, wherein: the measuring instrument is a DCS instrument.