CN216513816U

CN216513816U - Large-scale long-range on-line monitoring production and storage marsh gas anaerobic reactor

Info

Publication number: CN216513816U
Application number: CN202123204726.1U
Authority: CN
Inventors: 王国防; 陈伟; 史秋成; 刘瑞超; 张跃智; 张帆; 郜合林; 侯军辉; 查燕; 马保良; 张一维
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-13
Anticipated expiration: 2031-12-20

Abstract

A large-scale remote online monitoring production and storage biogas anaerobic reactor comprises a gas holder film which is arranged at the upper part of a reactor tank cavity in a suspension way and has a hemispherical structure which can be contracted up and down below a cone top, and a closed anaerobic reactor is formed; the two sides of the lower part of the reactor tank are respectively provided with a circular thrust pump which is symmetrically arranged and used for spraying the reaction materials on the lower part of the reactor tank to the shell-breaking stirring impellers on the corresponding sides through corresponding outlets of the circulating pipe and the circular thrust pipe and pushing a plurality of shell-breaking stirring impellers which are sequentially arranged on the shaft of the shell-breaking stirring impellers to break the scum on the liquid level; a plurality of vertical guide pipes are arranged around the inner wall of the reactor tank, and the lower ends of the vertical guide pipes are communicated with a tangential guide pipe provided with a stirring cutting paddle in an inner cavity; the gas cabinet membrane upper pressure ring fixed on the gas cabinet membrane is connected with a counterweight square basket which is fixed in a vertical square cabinet with scale scales on a reactor tank outer wall support D and is filled with counterweight stone through a steel wire rope by a pulley and a guide pulley.

Description

Large-scale long-range on-line monitoring production and storage marsh gas anaerobic reactor

Technical Field

The utility model relates to the technical field of anaerobic fermentation and biogas storage. Is particularly suitable for the field of methane production in a medium-temperature reaction process mode by using reaction materials such as kitchen waste, high-concentration breeding livestock and poultry manure, slaughter wastewater, urban domestic wastewater, sludge, industrial wastewater, crop straws and the like and active microorganisms.

Background

At present, kitchen garbage, high-concentration breeding livestock and poultry manure, slaughter wastewater, urban domestic wastewater, sludge, industrial wastewater, crop straws and other materials are mostly fermented at medium temperature (about 36 ℃) in an anaerobic tank, organic matter scum and other materials are gradually crusted on the upper part of reaction liquid under the rising action of biogas bubbles in biogas production because the specific gravity of the organic matter scum is smaller than that of water, and the reaction material coated with a large amount of microorganism exists in the middle lower part area of a reactor, so that how to solve the crusting of the scum and uniformly distribute the microorganism in the reaction material in the reaction liquid is one of important process key means for improving the biogas production rate and the degradation rate of the reaction material.

Currently, most anaerobic reactors are manually operated in production, and manual operations such as feeding, discharging, stirring and the like are often required to be performed on manual sites. Some daily routine inspections require the operator to climb back and forth to the upper part of the anaerobic reactor tank, and even then real-time production observations cannot be guaranteed.

In addition, most current anaerobic reactors adopt mechanical and water-sealed positive pressure and negative pressure safety protectors to protect positive pressure and negative pressure in the reactors, but some potential safety hazards caused by external environment influence exist in actual biogas production.

In addition, the existing anaerobic reactor with the upper part in the form of the flexible semi-spherical gas storage membrane also has the following problems:

1. the stirring mode of the material reaction liquid is mostly mechanical propeller type and is arranged at the middle lower part of the reactor, so that a little microorganism can hardly reach the upper area of the reaction liquid. The liquid circulation stirring process is characterized in that reaction liquid at the lower part is circulated to the upper part of the liquid level through a pump, although a small area of scum can be broken, the crust breaking at a fixed point relative to the whole crust layer of the reactor can not effectively prevent the crust from forming on the whole reaction liquid level.

2. The operation of on-site production is mostly required to be carried out by operators, the workload is large every day, more workers are required, and the labor cost is high. In summer, various hydraulic safety water seal devices need to be replenished with water in time due to large water evaporation capacity, and great potential safety hazard is brought to the safe operation of the reactor once water cannot be replenished to a normal water level in time.

3. At present, polyvinylidene fluoride materials are mostly selected for domestic methane storage membranes, and whether the methane storage membranes are single-membrane gas storage cabinets or double-membrane gas storage cabinets, the methane storage membranes are rapidly aged due to the influence of natural factors such as wind, sunshine, rain and the like, and the impact and scratch on the gas membranes, such as stones, branches and flying birds, can not be effectively prevented.

4. The mechanical safety valve device installed on the reactor often prevents each moving organ from effectively operating due to the erosion of dust and wind and rain which are installed outside the reaction tank all the year round, thereby easily causing mechanical failure and accidents.

Disclosure of Invention

The utility model aims to solve the problems and the defects in the prior art and provide a large-scale anaerobic reactor for remotely monitoring production and storage biogas on line. The reactor can solve the problem of complicated process operation in the production process of the anaerobic reactor by manpower, and can carry out remote online real-time monitoring and control on the production process in real time. Not only solves the problem of scum and crusting, but also effectively circulates the materials floating on the reaction surface to the microorganism strain dense area of the reactor for decomposing and producing gas and three-dimensionally mixing and stirring the reactants, thereby achieving the purposes of improving the production period rate, shortening the residence time of the reactants and improving the degradation rate.

The aim of the utility model can be achieved by the following technical measures:

the large-scale remote online monitoring production and storage biogas anaerobic reactor comprises a reactor tank which is arranged on a base and is provided with a conical top cover, and a gas holder film which is arranged on the upper part of the cavity of the reactor tank in a suspension way and has a hemispherical structure which can be contracted up and down below the conical top forms a closed anaerobic reactor; the bottom of the gas holder film is buried in a water seal tank with an annular structure arranged at the middle upper part of the tank body; two circulating thrust pumps are respectively arranged on two sides of the lower part of the reactor tank in a symmetrical mode, and the two circulating thrust pumps respectively spray the reaction materials on the lower part of the reactor tank to the shell breaking stirring impellers on the corresponding sides through corresponding circulating pipes and outlets of the circulating thrust pipes and push a plurality of shell breaking stirring impellers sequentially arranged on a shell breaking stirring impeller shaft to break scum on the liquid level of the reaction materials; a plurality of vertical guide pipes with upper ports as feed inlets are uniformly distributed on the inner wall of the reactor tank around the lower part of the liquid level of the inner wall of the reactor tank, the lower ends of the vertical guide pipes are communicated with the feed inlets of tangential guide pipes positioned at the lower part of the inner wall of the reactor tank, and stirring cutting blades driven by a stirrer are arranged in the inner cavity of the tangential guide pipes; an annular metal pipe is fixedly installed at the lower port of the gas holder membrane, and the annular metal pipe is hung with a plurality of semicircular gas holder hooks arranged on the bottom surface of the water seal groove and locked with a circle of closed fixing rope upper ring pipe fixed on a plurality of upper ring pipe supports on the inner wall of the reactor tank through a plurality of fixing ropes; the gas cabinet membrane upper pressure ring fixed on the gas cabinet membrane is connected with a counterweight square basket which is fixed in a vertical square cabinet with scale scales on a reactor tank outer wall support D and is filled with counterweight stone through a steel wire rope by a pulley and a guide pulley.

The utility model relates to a solenoid valve E arranged on a water replenishing pipe of a water seal tank, an electric control flow valve arranged on an overflow pipe of the water seal tank, an air pressure sensor arranged on a reactor tank and used for detecting the pressure in a gas cabinet membrane, a positive pressure solenoid valve B used for controlling the combustion pressure relief of a combustion torch, a solenoid valve C used for controlling the gas replenishing in the reactor tank, a solenoid valve D used for controlling the opening and closing of a biogas outlet pipe, a solenoid valve A used for controlling the starting of a circulating thrust pump, a feeding solenoid valve and a water replenishing solenoid valve E which are respectively connected into corresponding ports of a PLC control system in an electric connection mode.

At least two sets of observation windows A and B are respectively arranged at the liquid level of a water seal tank and the liquid level of a reaction material of the reactor tank, and a monitoring camera system is arranged outside the observation windows; a material overflow pipe arranged at the liquid level part of the reactor tank is inserted into the liquid under the reactor tank in an inverted U-shaped structure and is used for controlling the stable liquid level of the reaction materials; a feeding pipe and a slag discharging pipe are arranged at the bottom of the reactor tank, the feeding pipe is arranged in the horizontal direction, and a plurality of feeding pipe outlet holes are formed in the direction facing the lower base along the length direction of the feeding pipe; a pit is formed in the center of the base, and a feed inlet of the slag discharging pipe extends into the pit; the inner surface of the conical top cover at the upper part of the reactor tank is adhered with a dustproof and waterproof film.

A plurality of blades with sawtooth-shaped end parts are distributed on a shell breaking stirring impeller of the shell breaking stirrer at equal angles, impeller shaft seats are arranged at two ends of a shell breaking stirring impeller shaft of the shell breaking stirrer, and the impeller shaft seats are fixed on a support E on the outer wall of a reactor tank; a plurality of shell-breaking stirring impellers are arranged along the length direction of the shell-breaking stirring impeller shaft; the central line of the shaft of the shell-breaking stirring impeller is positioned above the liquid level of the reaction materials, and the distance from the liquid level is less than one third of the radius of the shell-breaking stirring impeller. (when the electric control system works, the electromagnetic valve A is opened, the circulating thrust pump is started, the reaction materials at the lower bottom are aligned to the shell-breaking stirring impeller blades at the two ends of the shell-breaking stirring impeller shaft through the outlet of the circulating thrust pipe on the circulating pipe, so that the shell-breaking stirring impeller shaft rotates, and other shell-breaking stirring impellers on the shell-breaking stirring impeller shaft are driven to rotate together to break the scum on the liquid level of the reaction materials).

The cross section of the vertical flow guide pipe is of a semicircular structure, the upper port of the vertical flow guide pipe is 100-200 mm away from the liquid level of the reaction material, the vertical flow guide pipe is fixed on the inner wall of the reactor tank to form a flow guide channel so as to guide scum at the liquid level of the material to the tangential flow guide pipe positioned at the lower part of the reactor tank, and the scum is crushed by the stirring and cutting blades.

In the utility model, a counterweight square basket connected with the lower end of a steel wire rope can move up and down in a vertical square cabinet along with the volume change of a gas cabinet membrane, the highest point and the lowest point are respectively controlled by an upper limiting block and a lower limiting block which are arranged on the vertical square cabinet, and an upper travel switch are electrically connected with corresponding interfaces of a PLC electric control system; and scale scales and a monitor are arranged outside the vertical square cabinet.

According to the utility model, when the data of at least three pressure sensors on the liquid level of the reaction materials in the reactor tank reach or exceed the set safe positive pressure or negative pressure, the positive pressure electromagnetic valve B is automatically opened to release pressure through combustion torch combustion, or the electromagnetic valve C is automatically opened to supplement gas through the negative pressure safe gas inlet pipe reactor tank.

The remote on-line monitoring is that an operator automatically controls and monitors the operation of the whole reactor in a control room through a PLC program control system. The PLC program control system can mainly complete the following automatic control of production:

1. the feed electromagnetic valve is opened, the feed pump is started, and the reaction materials can enter the bottom of the reactor through the feed pipe. And opening a slag discharge electromagnetic valve, and starting a discharge pump to discharge the biogas residues at the bottom of the reactor tank through a slag discharge pipe.

2. When the camera arranged outside the observation window B observes that the liquid level of the material needs to be stirred and crusted, the electromagnetic valve A is opened, the circulating thrust pump fixed on the support A is started, the reaction material with a large amount of microbial strains at the bottom of the reactor tank is sprayed onto the blades of the two crusting-breaking stirring impellers at the two ends of the stirring impeller shaft through the circulating pipe, and other crusting-breaking stirring impellers on the crusting-breaking stirring impeller shaft are driven to rotate together, so that the crusting-breaking stirring impeller blades with the saw-toothed shape break and stir the liquid level.

3. The pressure value is detected by a pressure sensor arranged above the liquid level in the reactor: when the pressure value is more than or equal to +1500Pa, the electric control magnet B is opened, and the methane with overload pressure is combusted through a combustion torch through a positive pressure safety escape pipe so as to ensure that the gas holder membrane and the reactor tank are in a safe pressure state, and when the pressure value is less than +1500Pa, the electric control magnet B is closed. When the pressure value is less than or equal to-50 Pa, the electromagnetic valve C is opened, the outside air enters the reactor through the negative pressure safety air inlet pipe, and when the pressure value is greater than-30 Pa, the electromagnetic valve C is closed.

4. One end of the water seal tank (the cross section of the water seal tank is U-shaped) with an annular structure is positioned at the water level of 200 mm, the other end of the water seal tank is connected with a water seal tank overflow pipe (corresponding anti-freezing solution needs to be replaced when the external temperature is close to 0 ℃) outside the reactor, and an electric control flow valve is arranged on the water seal tank overflow pipe; in addition, the water level state in the water seal tank can be monitored by a camera arranged outside the observation window A above the water seal tank with the annular structure. And when the electric control flow valve transmits a flow signal, the electromagnetic valve E is closed to stop water supplement.

5. After the stirrer is started, scum on the liquid level is circulated to the bottom of the reactor through the upper end of the vertical guide pipe and the tangential guide pipe by the stirring and cutting blade arranged at the front end of the stirrer and positioned in the tangential guide pipe, and meanwhile, the scum can be crushed by the stirring and cutting blade.

6. The produced marsh gas can control the output of the marsh gas through an electromagnetic valve D on a marsh gas outlet pipe. Because the production of the biogas is dynamically changed, the gas cabinet membrane can be changed up and down, one end of the steel wire rope is fixed on the gas cabinet membrane upper pressure ring on the gas cabinet membrane, and the other end of the steel wire rope is connected with a counterweight square basket provided with counterweight stone through a pulley and a guide pulley and moves up and down in the vertical square cabinet. The upper limit position and the lower limit position of the gas cabinet film are controlled by an upper limit block and a lower limit block which are arranged on a vertical square cabinet, and an upper travel switch on the gas cabinet film respectively transmit signals to a PLC electric control system and give an alarm for prompting. And scale marks and a monitor are arranged outside the vertical square cabinet so as to monitor the volume and the capacity of the biogas of the gas cabinet film in real time.

The utility model has the following beneficial effects:

1. the anaerobic reactor can remotely carry out online detection in the methane full-flow production process and control electromagnetic valves on various process pipelines through a PLC control system, so that the number of operators and the labor intensity are reduced, and the production cost is reduced.

2. The double three-dimensional circulation and shell breaking mode is that the circulation thrust pump pushes a large amount of strain reaction materials at the bottom of the anaerobic reactor to push a shell breaking stirring impeller to break liquid level scum through an outlet of a circulation pipe, and simultaneously, the scum is broken through stirring cutting blades in a vertical guide pipe and a transverse vertical guide pipe. So that the microbial strains are uniformly distributed in any area of the reactant, the gas production rate is improved, the material reaction retention time is shortened, and the degradation rate is improved.

3. Through the real-time air pressure value in the reactor transmitted by the air pressure sensor, the PLC electric control system can respectively and automatically open corresponding electromagnetic valves to carry out effective safety control on the super positive pressure and the negative pressure in the anaerobic reactor, thereby reducing and avoiding potential safety hazards caused by the problems of water seal type and mechanical type due to external factors and manual operation.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a partially enlarged view of a portion a of fig. 1.

Fig. 4 is a partially enlarged view of fig. 1 at B.

Fig. 5 is a partially enlarged view of the point C in fig. 1.

Fig. 6 is a partially enlarged view of fig. 1 at D.

Fig. 7 is a partially enlarged view of a portion E of fig. 1.

Fig. 8 is a partially enlarged view of fig. 2 at F.

Fig. 9 is a partial axial view of the vertical and tangential draft tubes of fig. 1.

Number in the figure: 1-support a, 2-feed electromagnetic valve, 3-circulation pipe, 4-feed pipe outlet, 5-feed pipe, 6-support B, 7-vertical draft tube, 8-stirring cutting paddle, 9-tangential draft tube, 10-base, 11-slag discharge tube, 12-support C, 13-slag discharge electromagnetic valve, 14-circulating thrust pump, 15-electromagnetic valve a, 16-reaction material, 17-reactor tank, 18-material overflow tube, 19-electrically controlled magnetic B, 20-negative pressure safety air inlet tube, 21-electromagnetic valve C, 22-positive pressure safety air outlet tube, 23-air pressure sensor, 24-combustion torch, 25-biogas outlet tube, 26-electromagnetic valve D, 27-water seal tank overflow tube, 28-electrically controlled flow valve, 29-water seal tank water supply tube, 30-gas cabinet semicircular hook, 31-electromagnetic valve E, 32-upper ring pipe support, 33-fixed rope, 34-fixed rope ring pipe, 35-water seal tank with annular structure (the cross section of the water seal tank is U-shaped), 36-top cover, 37-dustproof and waterproof membrane, 38-air cabinet membrane, 39-pulley, 40-air cabinet membrane upper compression ring, 41-steel wire rope, 42-observation window A, 43-observation window B, 44-guide pulley, 45-guide pulley support, 46-shell breaking stirring impeller, 47-vertical square cabinet, 48-support D, 49-upper limit block, 50-upper travel switch, 51-circulating thrust pipe outlet, 52-shell breaking stirring impeller shaft, 53-impeller shaft seat, 54-support E, 55-weighting square basket, 56-weighting stone, 57-lower travel switch, 58-lower limit block, 59-stirrer, 60-feeding pump and 61-discharging pump.

Detailed Description

The utility model will be further described in connection with the following examples (drawings):

as shown in figures 1 and 2, the large-scale remote online monitoring production and storage biogas anaerobic reactor comprises a reactor tank 17 which is arranged on a base 10 and is provided with a conical top cover 36, and a gas holder film 38 which is arranged on the upper part of the cavity of the reactor tank in a suspension way and is of a hemispherical structure and can be contracted up and down under the conical top to form a closed anaerobic reactor; the bottom of the gas holder film is buried in the water seal tank 35 of the annular structure arranged at the middle upper part of the tank body; two circulation thrust pumps 14 are respectively arranged at two sides of the lower part of the reactor tank in a symmetrical mode, the two circulation thrust pumps 14 respectively spray the reaction materials 16 at the lower part of the reactor tank to the shell-breaking stirring impellers 46 at the corresponding sides through the corresponding circulation pipes 3 and circulation thrust pipe outlets 51, and push a plurality of shell-breaking stirring impellers 46 which are sequentially arranged on a shell-breaking stirring impeller shaft 52 to break the scum at the liquid level of the reaction materials (see figure 3); three vertical guide pipes 7 with upper ports as feed inlets are uniformly distributed on the inner wall of the reactor tank around the lower part of the liquid level of the inner wall of the reactor tank, the lower ends of the vertical guide pipes are communicated with the feed inlets of a tangential guide pipe 9 positioned at the lower part of the inner wall of the reactor tank, and a stirring cutting blade 8 (see fig. 9) driven by a stirrer is arranged in the inner cavity of the tangential guide pipe 9; an annular metal pipe is fixedly arranged at the lower port of the gas holder membrane 38, and the annular metal pipe is hung with a plurality of gas holder semicircular hooks 30 arranged on the bottom surface of the water seal groove 35 and locked with a circle of closed fixing rope upper ring pipes 34 fixed on a plurality of upper ring pipe supports 32 on the inner wall of the reactor tank 17 through a plurality of fixing ropes 33; the gas holder membrane upper pressure ring 40 fixed on the gas holder membrane 38 is connected with a counterweight square basket 55 which is fixed in a vertical square cabinet 47 with scale scales on a bracket D48 on the outer wall of the reactor tank 17 and is provided with counterweight stones 56 through a steel wire rope 41 by a pulley 39 and a guide pulley 44.

The utility model relates to an electromagnetic valve E31 arranged on a water-sealed tank water-replenishing pipe 29 of a water-sealed tank 35, an electric control flow valve 28 arranged on an overflow pipe 27 of the water-sealed tank, an air pressure sensor 23 arranged on a reactor tank and used for detecting the pressure in a gas cabinet membrane 38, a positive pressure electromagnetic valve B19 used for controlling the combustion pressure relief of a combustion torch 24, an electromagnetic valve C21 used for controlling the air replenishment in the reactor tank 17, an electromagnetic valve D26 (see figure 4) used for controlling the opening and closing of a biogas outlet pipe 25, an electromagnetic valve A15 used for controlling the starting of a circulating thrust pump 14, a feeding electromagnetic valve 2 and a water-replenishing electromagnetic valve E31 which are respectively connected into corresponding ports of a PLC control system in an electric connection mode.

At least two sets of observation windows A42 and B43 are respectively arranged at the liquid level of the water seal tank 35 of the reactor tank 17 and the liquid level of the reaction materials 16, and a monitoring camera system is arranged outside the observation windows; a material overflow pipe 18 disposed at the liquid level portion of the reactor tank is inserted into the reactor tank 17 under the liquid in an inverted U-shaped configuration (see fig. 4) for controlling the stable liquid level of the reaction material 16; a feeding pipe 5 and a slag discharging pipe 11 are arranged at the bottom of the reactor tank, the feeding pipe 5 is arranged in the horizontal direction, and a plurality of feeding pipe outlet holes 4 are formed in the direction which is along the length direction of the feeding pipe and faces to a lower base 10; a pit is arranged in the center of the base 10, and a feed inlet of the slag outlet pipe 11 extends into the pit; a dust-proof and water-proof film 37 (see fig. 5) is attached to the inner surface of the conical top cover 36 on the upper part of the reactor tank 17.

A plurality of blades with sawtooth-shaped end parts are distributed on the shell-breaking stirring impeller 46 of the shell-breaking stirrer at equal angles (see fig. 7), impeller shaft seats 53 are arranged at two ends of a shell-breaking stirring impeller shaft 52 of the shell-breaking stirrer and are fixed on a support E54 on the outer wall of the reactor tank 17; a plurality of shell-breaking stirring impellers 46 are arranged along the length direction of the shell-breaking stirring impeller shaft 52; the centerline of the crust breaking impeller shaft 52 is located above the liquid level of the reaction mass 16 at a distance from the liquid level that is less than one third of the radius of the crust breaking impeller 46. (in operation, the electric control system opens the electromagnetic valve A (15), starts the circulating thrust pump 14 to align the reaction materials 16 at the bottom of the circulating pipe 3 with the blades of the shell-breaking stirring impeller 46 at the two ends of the shell-breaking stirring impeller shaft 52 through the outlet 53 of the circulating thrust pipe, so that the shell-breaking stirring impeller shaft 52 rotates and drives other shell-breaking stirring impellers on the shell-breaking stirring impeller shaft to rotate together to break the scum on the liquid level of the reaction materials).

The cross section of the vertical guide pipe 7 is of a semicircular structure, the upper port of the feed inlet is 100-200 mm away from the liquid level of the reaction material 16, the vertical guide pipe 7 is fixed on the inner wall of the reactor tank 17 to form a guide channel so as to guide scum at the liquid level of the material to the tangential guide pipe 9 at the lower part of the reactor tank 17, and the scum is crushed by the stirring and cutting blades 8.

In the utility model, a counterweight square basket 55 connected with the lower end of a steel wire rope 41 can move up and down in a vertical square cabinet 47 along with the volume change of a gas cabinet film 38, the highest point and the lowest point are respectively controlled by an upper limiting block 49 and a lower limiting block 58 which are arranged on the vertical square cabinet 47, and an upper travel switch 50 and an upper travel switch 57 are electrically connected with corresponding interfaces of a PLC (programmable logic controller) electric control system; and a scale and a monitor are arranged outside the vertical square cabinet 47.

According to the utility model, when the data of at least three pressure sensors 23 on the liquid level of the reaction materials 16 in the reactor tank 17 reach or exceed the set safe positive pressure or negative pressure, the positive pressure electromagnetic valve B19 is automatically opened, and the combustion torch 24 is used for combustion pressure relief, or the electromagnetic valve C21 is automatically opened, and the gas is supplied into the reactor tank 17 through the negative pressure safe gas inlet pipe 20.

The feed solenoid valve 2 was opened and the feed pump 2 was activated and the reaction mass was fed into the bottom of the reactor through the feed tube 5 of the rack B6. The feeding pipe 5 is provided with a plurality of feeding pipe outlet holes 4 towards the direction of the base 10 so as to avoid the blockage of biogas residues, and simultaneously, sediment is blown away during feeding. And opening the slag discharge electromagnetic valve 13, and starting the discharge pump 61 to discharge the biogas residues in the central pit at the bottom of the reactor tank through the slag discharge pipe 11 on the bracket C12.

The cameras arranged outside the observation window A42 and the observation window B43 respectively transmit the real-time images of the U-shaped water seal tank 35 and the liquid level condition of the material reaction to the control room inspection screen of an operator.

When the liquid level needs to be stirred and shelled, the electromagnetic valve A15 is opened, the circulating thrust pump 14 fixed on the bracket A1 is started to lead the bottom reaction material 16 to be aligned with the blades of the shelling stirring impeller 46 at two ends through the circulating thrust pipe outlet 53 on the circulating pipe 3, so that other shelling stirring impellers 46 on the shelling stirring impeller shaft 52 rotate together to crush the scum on the liquid level.

When the pressure sensor 23 installed above the liquid level in the reactor detects the pressure value: when the pressure value is more than or equal to +1500Pa, the electric control magnet B19 is opened, the methane overload pressure in the gas holder film 38 is ignited and combusted through the combustion torch 24 through the positive pressure safety escape pipe 22, so that the gas holder film and the reactor tank are ensured to be in a safe pressure state, and when the pressure value is less than +1500Pa, the electric control magnet B19 is closed. When the pressure value is less than or equal to-50 Pa, the electromagnetic valve C is opened, the outside air enters the reactor through the negative pressure safety air inlet pipe 20, and when the pressure value is greater than-30 Pa, the electromagnetic valve C21 is closed.

A water seal tank overflow pipe 27 with a flow control valve 28 and a U-shaped water seal tank water supply pipe 29 with a solenoid valve E31 are arranged on the water seal tank 35 of the annular structure at a water level of 200 mm from the bottom of the tank and are communicated to the outside of the reactor tank 17. When the electromagnetic valve E31 is opened, water can be supplemented into the U-shaped water sealing groove 35 through the U-shaped water sealing groove water supplementing pipe 29, and when the water reaches the water level of 200 mm and a flow signal is sent out by the electric control flow valve 28, the electromagnetic valve E31 is closed to stop water supplementing.

Claims

1. A large-scale long-range on-line monitoring production and storage marsh gas anaerobic reactor which is characterized in that: the anaerobic reactor comprises a reactor tank (17) which is arranged on a base (10) and is provided with a conical top cover (36), and a gas holder membrane (38) which is arranged on the upper part of the cavity of the reactor tank in a suspension way and has a hemispherical structure and can be contracted up and down below the conical top to form a closed anaerobic reactor; the bottom of the gas holder film is buried in a water seal tank (35) with an annular structure arranged at the middle upper part of the tank body; two sides of the lower part of the reactor tank are respectively provided with a circulating thrust pump (14) in a symmetrical arrangement mode, the two circulating thrust pumps (14) respectively spray reaction materials (16) on the lower part of the reactor tank onto shell-breaking stirring impellers (46) positioned on corresponding sides through corresponding circulating pipes (3) and circulating thrust pipe outlets (51), and push a plurality of shell-breaking stirring impellers (46) which are sequentially arranged on a shell-breaking stirring impeller shaft (52) to break scum on the liquid level of the reaction materials; a plurality of vertical guide pipes (7) with upper ports as feed inlets are uniformly distributed on the inner wall of the reactor tank around the lower part of the liquid level of the inner wall of the reactor tank, the lower ends of the vertical guide pipes are communicated with the feed inlets of tangential guide pipes (9) positioned at the lower part of the inner wall of the reactor tank, and stirring cutting blades (8) driven by a stirrer are arranged in the inner cavity of the tangential guide pipes (9); an annular metal pipe is fixedly arranged at the lower port of the gas holder membrane (38), and the annular metal pipe is connected with a plurality of gas holder semicircular hooks (30) arranged on the bottom surface of the water seal groove (35) in a hanging manner and locked with a circle of closed fixing rope upper ring pipes (34) fixed on a plurality of upper ring pipe supports (32) on the inner wall of the reactor tank (17) through a plurality of fixing ropes (33); the gas holder membrane upper pressure ring (40) fixed on the gas holder membrane (38) is connected with a counterweight square basket (55) which is fixed in a vertical square holder (47) with scale scales on a support D (48) on the outer wall of the reactor tank (17) and is provided with counterweight stones (56) through a steel wire rope (41) by a pulley (39) and a guide pulley (44).

2. A large scale remote on-line monitoring production and storage biogas anaerobic reactor according to claim 1, characterized in that: install solenoid valve E (31) on water seal tank moisturizing pipe (29) of water seal tank (35), install automatically controlled flow valve (28) on water seal tank overflow pipe (27), install atmospheric pressure sensor (23) that are used for detecting gas holder membrane (38) internal pressure on the reactor jar, a malleation solenoid valve B (19) for controlling burning torch (24) burning pressure release, a solenoid valve C (21) for controlling to carry out the tonifying qi in reactor jar (17), a solenoid valve D (26) for controlling marsh gas outlet duct (25) and open and close, and solenoid valve A (15) that are used for controlling start-up circulating thrust pump (14), and feeding solenoid valve (2), moisturizing solenoid valve E (31) are respectively through the corresponding port of electric connection mode access PLC control system.

3. A large scale remote on-line monitoring production and storage biogas anaerobic reactor according to claim 1, characterized in that: at least two sets of observation windows A (42) and B (43) are respectively arranged at the liquid level of the water seal tank (35) of the reactor tank (17) and the liquid level of the reaction materials (16), and a monitoring camera system is arranged outside the observation windows; a material overflow pipe (18) arranged at the liquid level part of the reactor tank is inserted into the liquid of the reactor tank (17) in an inverted U-shaped structure and is used for controlling the stable liquid level of the reaction materials (16); a feeding pipe (5) and a slag discharging pipe (11) are arranged at the bottom of the reactor tank, the feeding pipe (5) is arranged in the horizontal direction, and a plurality of feeding pipe outlet holes (4) are formed in the direction which is along the length direction of the feeding pipe and faces to the lower base (10); a pit is formed in the center of the base (10), and a feed inlet of the slag discharging pipe (11) extends into the pit; a dustproof and waterproof film (37) is attached to the inner surface of a conical top cover (36) at the upper part of the reactor tank (17).

4. A large scale remote on-line monitoring production and storage biogas anaerobic reactor according to claim 1, characterized in that: a plurality of saw-toothed blades are distributed on a shell breaking stirring impeller (46) of the shell breaking stirrer at equal angles, impeller shaft seats (53) are mounted at two ends of a shell breaking stirring impeller shaft (52) of the shell breaking stirrer, and the impeller shaft seats (53) are fixed on a support E (54) on the outer wall of a reactor tank (17); a plurality of shell-breaking stirring impellers (46) are arranged along the length direction of the shell-breaking stirring impeller shaft (52); the central line of the shaft (52) of the shell-breaking stirring impeller is positioned above the liquid level of the reaction material (16), and the distance from the liquid level is less than one third of the radius of the shell-breaking stirring impeller (46).

5. A large scale remote on-line monitoring production and storage biogas anaerobic reactor according to claim 1, characterized in that: the cross section of the vertical guide pipe (7) is of a semicircular structure, the upper port of the feed inlet is 100-200 mm away from the liquid level of the reaction material (16), the vertical guide pipe (7) is fixed on the inner wall of the reactor tank (17) to form a guide channel so as to guide scum at the liquid level of the material to a tangential guide pipe (9) at the lower part of the reactor tank (17), and the scum is crushed by the stirring and cutting blades (8).

6. A large scale remote on-line monitoring production and storage biogas anaerobic reactor according to claim 1, characterized in that: a counterweight square basket (55) connected with the lower end of a steel wire rope (41) can move up and down in the vertical square cabinet (47) along with the volume change of the air cabinet membrane (38), the highest point and the lowest point are respectively controlled by an upper limiting block (49) and a lower limiting block (58) arranged on the vertical square cabinet (47), and an upper travel switch (50) and a lower travel switch (57) are electrically connected with corresponding interfaces of a PLC (programmable logic controller) electric control system; and scale scales and a monitor are arranged outside the vertical square cabinet (47).

7. A large scale remote on-line monitoring production and storage biogas anaerobic reactor according to claim 1, characterized in that: when the data of not less than three pressure sensors (23) on the liquid level of reaction materials (16) in the reactor tank (17) reach or exceed the set safe positive pressure or negative pressure, the positive pressure electromagnetic valve B (19) is automatically opened and is combusted and decompressed through a combustion torch (24), or the electromagnetic valve C (21) is automatically opened and air is supplied into the reactor tank (17) through a negative pressure safe air inlet pipe (20).