CN110951607A - Air tank system with membrane bag suspension control - Google Patents

Air tank system with membrane bag suspension control Download PDF

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Publication number
CN110951607A
CN110951607A CN201911312838.3A CN201911312838A CN110951607A CN 110951607 A CN110951607 A CN 110951607A CN 201911312838 A CN201911312838 A CN 201911312838A CN 110951607 A CN110951607 A CN 110951607A
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gas
tank
storage bag
bag body
air
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胡永利
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Shanghai Linhai Ecological Technology Co ltd
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Shanghai Linhai Ecological Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/26Constructional details, e.g. recesses, hinges flexible
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/36Means for collection or storage of gas; Gas holders
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/48Holding appliances; Racks; Supports
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/30Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
    • C12M41/34Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of gas
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/40Means for regulation, monitoring, measurement or control, e.g. flow regulation of pressure
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M47/00Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/18Gas cleaning, e.g. scrubbers; Separation of different gases

Abstract

The invention provides a gas tank system controlled by hanging a membrane bag, which comprises an anaerobic fermentation device, a gas tank device, a supercharging device and a dehydration and desulfurization device, wherein the anaerobic fermentation device comprises an anaerobic tank, biogas generated in the anaerobic tank enters the dehydration and desulfurization device through the supercharging device and then is conveyed to a user for use, and the biogas generated by the anaerobic tank cannot be used and is firstly stored in the gas tank device; when the methane produced by the anaerobic tank cannot meet the use amount of a user, the methane in the gas storage tank is conveyed out to meet the requirements of the user, the gas storage bag body has a simple structure and a reasonable design, and the internal space of the gas storage tank body is fully utilized; the matching of the supercharging device and the dehydration desulfurization device improves the air supply capacity and flexibility of the system, and the DCS control device is arranged in the system, so that the labor amount of workers is reduced, the working efficiency is improved, and the system is suitable for industrial popularization.

Description

Air tank system with membrane bag suspension control
Technical Field
The invention relates to the field of biogas preparation and storage, in particular to a gas storage tank system controlled by a membrane bag suspension.
Background
Biogas, as the name implies, is the gas in the marsh. People often see that bubbles emerge from marshland, sewage ditches or septic tanks, and if people scratch matches, the matches can be ignited, which is the natural marsh gas. Biogas is a combustible gas produced by various organic substances through the fermentation of microorganisms under the conditions of air isolation and proper temperature and humidity.
Biogas storage tanks are commonly used to store biogas. Generally, biogas is continuously generated, however, the gas is used according to specific conditions, and the time is not synchronous. Therefore, a storage device is needed to store unused methane for use when needed. The methane storage tank can well store and utilize methane. The biogas storage tank in the prior art has a float-type and an inner membrane type, wherein patent document CN207421769U discloses a wet-type gas holder for storing biogas, which is used for solving the problem of smaller storage space of the existing wet-type gas holder and comprises a sealed water tank and a gas holder, wherein the sealed water tank and the gas holder are arranged above a bottom plate, the outer side of the bottom plate is provided with an annular base, the inner side of the upper part of the base is provided with a water tank inner wall, the outer side of the upper part of the base is provided with a water tank outer wall, and an annular area enclosed by the water tank inner wall and the; the gas holder comprises a gas holder wall plate and a gas holder top plate, the bottom of the gas holder wall plate is arranged in the water in the sealed water tank, and the upper part of the gas holder wall plate is connected with the gas holder top plate; the middle part of base is equipped with the business turn over trachea that stretches into the gas holder, and the bottom of basin outer wall is equipped with business turn over water pipe, and the upper portion of gas holder roof is equipped with the bleeder, is equipped with the bleed gate valve on the bleeder, but this design often is higher to the requirement that the civil engineering in-process weighed to the basis, often causes the cost high.
The inner membrane type gas storage tank mainly comprises an inner membrane and a gas storage tank main body, and patent document CN106322097A discloses a gas storage tank for storing methane and exhausting gas with constant pressure, the gas storage tank comprises: a bottom; an outer housing disposed on the bottom, the outer housing including a top portion and a peripheral portion; a reservoir bag comprising a plurality of stacked flexible bladder lumens with fluid communication between adjacent bladder lumens; the lowest bag cavity in the plurality of bag cavities is provided with at least two interfaces, and the air inlet pipe, the air outlet pipe and the water outlet pipe can be in fluid communication with the air bag through the at least two interfaces; a pressurizing device disposed above the air reservoir bag, the pressurizing device applying pressure to the air reservoir bag to obtain a gas output pressure. However, in the use process of the design, on one hand, the free space around the inner membrane cannot be fully utilized, so that the whole gas storage amount is small, and the structure is unreasonable; on the other hand, when the top part of the inner membrane completely falls to the bottom and is folded and expands and rises due to air inflow, the inner wall or the outer wall of the inner membrane is damaged due to the friction action between the inner wall of the inner membrane and the inner wall and between the inner wall of the inner membrane and the supporting bottom surface, and the service life of the air storage inner membrane is influenced.
Disclosure of Invention
In view of the deficiencies in the prior art, it is an object of the present invention to provide a bladder suspension controlled gas tank system.
The air tank system for controlling the suspension of the membrane bag comprises an anaerobic fermentation device, an air tank device, a supercharging device and a dehydration and desulfurization device;
gas generated in the anaerobic fermentation device enters a dehydration and desulfurization device through a supercharging device; and/or
The gas generated in the anaerobic fermentation device is firstly stored in the gas storage tank device and then is conveyed to the dehydration and desulfurization device through the supercharging device.
Preferably, the anaerobic fermentation device comprises an anaerobic tank and a positive and negative pressure protector;
the gas outlet of the anaerobic tank is connected with a pipeline of a gas storage tank device;
the positive and negative pressure protector is internally provided with a water seal and is respectively connected with the anaerobic tank and the dehydration desulfurization device through pipelines.
Preferably, the gas tank device includes a gas tank main body 10, a gas tank bag body 20, a suspension mechanism, and a fixed base;
the air storage bag body 20 is arranged in the air storage tank body 10;
the bottom surface of the air storage bag body 20 is an open surface;
the bottom opening edge of the air storage bag body 20 is fastened and sealed through a fixed foundation;
the top of the air storage bag body 20 is movably matched with the suspension mechanism;
the bottom of the air storage bag body 20 is provided with an air channel 30 communicated with the outside;
the suspension mechanism can limit the descending height of the top of the gas storage bag body 20 when gas is discharged from the gas storage bag body 20 through the gas passage 30.
Preferably, the suspension mechanism includes a suspension wheel 40, a stopper rod 50, a weight 60, a stopper rope 70, and a guide ring 80;
the suspension wheel 40 is arranged on the top of the inner side of the gas holder main body 10;
the counterweight 60 is disposed outside the gas tank main body 10;
one end of the limiting rope 70 is connected with the top of the air storage bag body 20, and the other end of the limiting rope 70 is connected with the counterweight 60 through the suspension wheel 40 and the limiting rod 50 in sequence;
a first reinforcing part 21 is arranged at the connecting part of the limiting rope 70 and the top of the air storage bag body 20;
the guide ring 80 is disposed between the suspension wheel 40 and the stopper rod 50;
the guide ring 80 can guide the limiting rope 70 to slide;
when the gas in the gas storage bag body 20 reduces and descends, the limiting rope 70 descends along with the gas storage bag body 20, at the moment, the counterweight 60 moves close to the limiting rod 50 along with the other end of the limiting rope 70 until the counterweight 60 is blocked by the limiting rod 50 for limitation, the top of the gas storage bag body 20 does not descend any more, and the lowest surface of the top of the gas storage bag body 20 is higher than the ground at the moment.
Preferably, a support body 11 and a support rope 12 are further arranged inside the gas holder body 10;
one end of the supporting rope 12 is connected with the supporting body 11, and the other end of the supporting body 11 is connected with the side surface of the air storage bag body 20;
a second reinforcing part 22 is arranged at the part of the supporting body 11 connected with the side surface of the air storage bag body 20;
the number of the supporting bodies 11 is plural, and the plural supporting bodies 11 are uniformly or non-uniformly arranged in the circumferential direction of the inner wall of the gas tank main body 10.
Preferably, the fixed foundation comprises a base 90;
the plurality of base seats 90 enclose a sealed annular structure;
the bottom edge of the air storage bag body 20 is hermetically connected with the base seat 90.
Preferably, water condensers are respectively installed on the air inlet pipeline 101 and the air outlet pipeline 102 of the air storage tank device.
Preferably, the supercharging device comprises two supercharging fans connected in parallel;
an inlet and an outlet of the booster fan are provided with valves;
and a fan outlet pressure gauge and a fan outlet pressure transmitter are arranged at the outlet of the booster fan.
Preferably, the dehydration desulfurization device comprises a gas-water separator and a desulfurization tank;
preferably, the system further comprises a DCS control device;
an alarm instrument is arranged on the DCS control device;
the anaerobic fermentation device is provided with an anaerobic tank pressure transmitter and an anaerobic tank temperature sensor;
the gas storage tank device is provided with a gas storage bag height sensor and a gas storage bag pressure sensor;
a gas detector is arranged at the outlet of the dehydration desulfurization device;
the DCS control device is electrically connected with the anaerobic tank pressure transmitter, the anaerobic tank temperature sensor, the gas storage bag height sensor, the gas storage bag pressure sensor and the gas detector respectively.
Compared with the prior art, the invention has the following beneficial effects:
1. the structure of the air storage bag body 20 effectively utilizes the space inside the air storage tank main body 10, solves the defects of the prior art, increases the air storage space, and has reasonable structure and strong practicability.
2. The pressure of marsh gas in the pipeline has been promoted through setting up booster fan, through installing the variable frequency speed regulator at booster fan, according to the size of user with tolerance, through the rotational speed of variable frequency speed regulator control booster fan to satisfy user's demand, can save the power consumption, again can in time adjust system's pressure, guarantee safety in production.
3. The design of the bottom opening of the air storage bag body 20 can reduce the production cost of the air storage bag body 20, and through the structural arrangement form of the bottom of the air storage bag body 20 and the base seat 90, the space is fully utilized, the air storage amount is increased, the structure is simple, and the arrangement is reasonable.
4. The support body 11 and the support rope 12 can support the tensile force of the air storage bag body 20, relieve or lighten the tensile force borne by the limiting rope 70, have a simple structure, and are beneficial to protecting the inner wall of the air storage bag body 20 from being damaged.
5. The first reinforcement part 21 and the second reinforcement part 22 play a good role in protection and support.
6. Set up the length of spacing rope 70 according to the distance of the top of the air storage bag body 20 to the bottom, the top and the ground contact of the air storage bag body 20 when can avoiding the inside gas of the air storage bag body 20 to reduce, thereby the contact of the inner wall of the air storage bag body 20 and ground has been avoided, the friction of the inner wall of the air storage bag body 20 and ground brought in the frequent descending process in air storage bag body 20 top has been avoided, the service life of the air storage bag body 20 has been prolonged, and meanwhile, the production cost is also reduced, the steam generator is simple in structure, and is simple and easy to operate, and the practicability is strong.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic view showing a gas reservoir 20 with a reduced internal gas content;
FIG. 3 is a schematic view of the gas storage bag 20 after being filled with gas;
fig. 4 is a schematic diagram of the arrangement of inlet and outlet pipelines of the gas holder device.
The figures show that:
Figure BDA0002324993380000041
Figure BDA0002324993380000051
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The gas tank system comprises an anaerobic fermentation device, a gas tank device, a supercharging device and a dehydration and desulfurization device, wherein gas generated in the anaerobic fermentation device enters the dehydration and desulfurization device through the supercharging device; and/or the gas generated in the anaerobic fermentation device is firstly stored in the gas storage tank device and then is conveyed to the dehydration desulfurization device through the supercharging device, the gas in the invention is preferably methane, and specifically, the gas channel 30 in the invention can be understood as a root pipeline used for gas inlet and outlet of the gas storage tank device, or two gas pipelines, one gas inlet and one gas outlet, or other forms capable of realizing gas inlet and outlet of the gas storage tank device, and the protection scope of the invention is also included.
Further, in a preferred example, as shown in fig. 4, an air inlet pipeline 101 of an air storage tank of the air storage tank device is connected with the anaerobic tank, an air outlet pipeline 102 of the air storage tank device is connected with the booster fan, when the methane produced by the anaerobic tank exceeds the usage amount of users, a part of the methane enters the air storage tank device through the air inlet pipeline 101 of the air storage tank and is stored, and a part of the methane is conveyed to the booster fan through an air storage tank bypass pipeline 103; when the biogas produced by the anaerobic tank cannot meet the use amount of users, the biogas produced by the anaerobic tank is completely conveyed to the booster fan through the gas storage tank bypass pipeline 103, and meanwhile, the biogas in the gas storage tank is conveyed to the booster fan through the gas storage tank outlet pipeline 102 so as to meet the requirements of the users.
Specifically, the anaerobic fermentation device comprises an anaerobic tank and a positive and negative pressure protector, wherein an air outlet of the anaerobic tank is connected with an air storage tank device through a pipeline, and specifically, the anaerobic tank is connected with the air storage tank device through an air storage tank air inlet pipeline 101; the positive and negative pressure protector is respectively connected with the anaerobic tank and the dehydration desulfurization device, an upper water seal and a lower water seal are arranged in the positive and negative pressure protector, in a preferred example, when the pressure of the anaerobic tank exceeds a certain value, such as 0.3KPa, the upper water seal is broken by an inlet of the positive and negative pressure protector, so that the methane in the anaerobic tank is decompressed through the positive and negative pressure protector; when the pressure of the anaerobic tank is lower than a certain value, for example 0.1KPa, the water seal at the lower part in the positive and negative pressure protector can be broken by the marsh gas of the pipeline connected with the dehydration desulfurization device, so that the marsh gas of the pipeline connected with the dehydration desulfurization device enters the anaerobic tank through the positive and negative pressure protector, and the pressure of the anaerobic tank is stable.
The air tank system controlled by the membrane bag suspension is shown in fig. 3, the air tank device comprises an air tank main body 10, an air tank body 20, a suspension mechanism and a fixed foundation, wherein the air tank body 20 is arranged in the air tank main body 10; the bottom surface of the air storage bag body 20 is an open surface, the bottom opening edge of the air storage bag body 20 is fastened and sealed through a fixed foundation, and the top of the air storage bag body 20 is movably matched with a suspension mechanism; the bottom of the gas storage bag body 20 is provided with the gas passage 30 that is linked together with the outside, stores up marsh gas in the gas storage bag body 20, and when gaseous discharge from the gas storage bag body 20 through gas passage 30, it can carry on spacingly to the descending height at gas storage bag body 20 top to suspend the mechanism in midair, and in a preferred example, gas storage tank main part 10 is cylindrical structure, gas storage bag body 20 is the drum-shaped structure, the top of gas storage bag body 20 is convex circular cone portion, and the inside space of gas storage tank main part 10 has been effectively utilized to gas storage bag body 20's structure, has solved prior art's not enough, has increased the gas storage space, and the structure sets up rationally, and the practicality is strong.
Further, in order to substantially eliminate the drawbacks of the prior art, the air storage bag body 20 may be configured in a semicircular structure or a cylindrical structure.
Further, as shown in fig. 3, the fixed foundation includes a base seat 90, the bottom of the air storage bag body 20 is open, the plurality of base seats 90 enclose a sealed annular structure, and the bottom opening of the air storage bag body 20 is connected with the base seat 90 in a sealing manner, for example, the air storage bag body 20 is pressed on the base seat 90 through a steel sheet and is coated with a sealant to achieve sealing; for another example, the air storage bag 20 is hermetically connected to the base 90 by bonding. The design of the bottom opening of the air storage bag body 20 can reduce the production cost of the air storage bag body 20, and through the structural arrangement form of the bottom of the air storage bag body 20 and the base seat 90, the space is fully utilized, the air storage amount is increased, the structure is simple, and the arrangement is reasonable.
Specifically, as shown in fig. 3, the suspension mechanism includes a suspension wheel 40, a limiting rod 50, a counterweight 60 and a limiting rope 70, the suspension wheel 40 is installed at the top of the inner side of the gas storage tank main body 10, the counterweight 60 is arranged outside the gas storage tank main body 10, one end of the limiting rope 70 is connected with the top of the gas storage bag 20, the other end of the limiting rope 70 is connected with the counterweight 60 sequentially through the suspension wheel 40 and the limiting rod 50, when a user needs to use gas, for example, biogas is stored in the gas storage bag 20, when the gas in the gas storage bag 20 is reduced to lower the top of the gas storage bag 20, the connection part of the limiting rope 70 and the gas storage bag 20 descends along with the gas storage bag 20, at this time, the counterweight 60 moves along with the other end of the limiting rope 70 and close to the limiting rod 50 until the counterweight 60 is blocked by the limiting rod 50, the top of the gas storage bag 20 does not descend any more, as shown in fig, at this time, the lowest position of the top of the air storage bag body 20 is still higher than the ground; consequently, carry out spacing the stopping through setting up counter weight 60 and setting up corresponding gag lever post 50 to counter weight 60, distance to the bottom according to the top of the air storage bag body 20 sets up the length of spacing rope 70, the top and the ground contact of the air storage bag body 20 when can avoiding the inside gas of the air storage bag body 20 to reduce, thereby the contact of the inner wall of the air storage bag body 20 with ground has been avoided, the friction of the inner wall of the air storage bag body 20 and ground that the frequent descending in-process in air storage bag body 20 top brought has been avoided, the life of the air storage bag body 20 has been prolonged, and meanwhile, the production cost is also reduced, the steam generator is simple in structure, and is simple and easy to operate.
Further, a support body 11 and a support rope 12 are further provided inside the gas storage tank main body 10, as shown in fig. 3, one end of the support rope 12 is connected to the support body 11, the other end of the support rope 12 is connected to a side surface of the gas storage bag body 20, the number of the support bodies 11 is plural, the plural support bodies 11 are uniformly or non-uniformly provided in the circumferential direction of the inner wall of the gas storage tank main body 10, in a preferred example, 8 support bodies 11 are uniformly provided in the circumferential direction of the inner wall of the gas storage tank main body 10, in a variation, 4 support bodies 11 are uniformly provided in the circumferential direction of the inner wall of the gas storage tank main body 10, by providing the support bodies 11 and the support ropes 12, when the top of the gas storage bag body 20 is lowered due to gas reduction in the gas storage bag body 20, the support bodies 11 and the support ropes 12 can play a supporting tensile force on the gas storage bag body 20, and relieve, the structure is simple, and the inner wall of the air storage bag body 20 is protected from being damaged.
Furthermore, the second reinforcing part 22 is arranged at the position where the support body 11 is connected with the side surface of the gas storage bag body 20, and because the support body 11 and the support rope 12 can play a role in supporting the gas storage bag body 20, the second reinforcing part 22 prevents the whole gas storage bag body 20 from being leaked and being unusable due to the fact that the gas storage bag body 20 is damaged by the overlarge stress at the joint of the support rope 12 and the gas storage bag body 20, and the second reinforcing part 22 plays a good role in protection and support.
Specifically, the position that the position rope 70 is connected with the gas storage bag body 20 top is provided with first rib 21, because the position that the position rope 70 is connected with the gas storage bag body 20 top bears very big pulling force when the gas storage bag body 20 descends, consequently this place sets up first rib 21 and avoids because this place atress is too big to damage the gas storage bag body 20, leads to whole gas storage bag body 20 gas leakage unable to use, and first rib 21 has played fine protection and supporting role.
Specifically, the suspension mechanism further includes a guide ring 80, and since the entire airbag body 20 has a large volume and the limiting rope 70 is also relatively long, the guide ring 80 is disposed between the suspension wheel 40 and the limiting rod 50 for limiting and guiding the limiting rope 70 when sliding, thereby preventing the limiting rope 70 from contacting with other parts, rubbing or being stuck, and other abnormal situations, and meanwhile, a plurality of guide rings 80 can be disposed at the position where the limiting rope 70 passes through according to actual situations, so that the limiting rope 70 can slide according to the positions where the guide rings 80 are disposed.
Specifically, as shown in fig. 3, an air tank door 13 is arranged at the bottom of the air tank main body 10, the air tank door 13 is hinged to the air tank main body 10, and the air tank door 13 is arranged at the bottom of the air tank main body 10, so that a worker can conveniently enter the inside of the air tank main body 10 to patrol, know the condition of the air tank body 20, find hidden dangers in time, and be favorable for safety production.
Specifically, because the biogas output from the gas storage tank contains free water, the desulfurization of the desulfurizer in the subsequent desulfurization process is adversely affected, the free water causes the phenomenon of argillization of the desulfurizer, the gas generates bias flow, and the desulfurizer quickly loses efficacy, so dehydration is needed before desulfurization. The dehydration and desulfurization device comprises a gas-water separator and a desulfurization tank, wherein biogas output from the pressurization device sequentially passes through the gas-water separator and the desulfurization tank, water condensers are respectively arranged on a gas storage tank inlet pipeline 101 and a gas storage tank outlet pipeline 102 of the gas storage tank device, the water condensers are arranged at the bottom of the pipelines, accumulated water in the pipelines can naturally flow into the water condensers under the action of gravity to achieve the purpose of dehydration, meanwhile, a water discharge port is arranged at the bottom of each water condenser, a liquid level meter is arranged on the side face of each water condenser, and water can be discharged at any time according to the display of the liquid level meter; meanwhile, the filler is arranged in the gas-water separator, the gas-water separator removes moisture by adopting a gravity method, when methane enters the gas-water separator from the gas inlet of the separator and passes through the filler, gas-liquid two phases are dispersed into a plurality of fine bubbles, liquid drops or liquid films, the contact area of the gas-liquid two phases is increased, the moisture in the methane is removed more efficiently, meanwhile, the filler has good chemical stability, is not corroded by gas or liquid, has a certain fire retardant effect, and the proper porosity reduces the resistance of the gas; and removing the water in the methane again through a gas-water separator.
Specifically, a desulfurizer is arranged in the desulfurizing tank, the dehydrated methane enters the desulfurizing tank to fully contact and react with the desulfurizer in the desulfurizing tank, hydrogen sulfide gas in the methane is removed, and the desulfurizer adopts iron sulfide, so that the cost is low, and the practicability is high.
Specifically, the supercharging device comprises two supercharging fans connected in parallel, the supercharging fans are mainly used for increasing the pressure of methane in a pipeline, the pressure in the anaerobic tank is low and is generally controlled to be 0.1-0.3KPa, so that the pipeline pressure can be increased through the supercharging fans, the methane is dehydrated and desulfurized and then is conveyed to users, and the requirements of the users are met.
Further, the exit of booster fan is provided with the valve, booster fan's export is provided with fan export manometer, and two parallelly connected booster fan can be as reserve each other, when a booster fan broke down, can stop operating the booster fan that breaks down and close the valve of both sides, open the valve of both sides and open the operation with another booster fan, can maintain the booster fan that breaks down this moment, neither influence production, solved the unusual of equipment again, be favorable to improving the rate of driving, the benefit of increase.
The anaerobic fermentation device is provided with an anaerobic tank pressure transmitter and an anaerobic tank temperature sensor, the gas storage tank device is provided with a gas storage bag height sensor and a gas storage bag pressure sensor, and the outlet of the dehydration desulfurization device is provided with a gas detector; the export of booster fan is provided with fan export pressure transmitter, DCS controlling means is connected with anaerobic jar pressure transmitter, anaerobic jar temperature sensor, gas storage bag body height sensor, gas storage bag body pressure sensor, fan export pressure transmitter, gas detector electricity respectively. An operator can know the condition of the biogas production system in a control room through a computer by the DCS control device, on one hand, the temperature and pressure indexes in the anaerobic tank are obtained through the computer in the DCS control device, the heating coil is arranged in the anaerobic tank, when the temperature is too high, the opening of an inlet adjusting valve entering a pipeline of the heating coil can be adjusted by the DCS control device, so that the temperature in the anaerobic tank is controlled, and meanwhile, the feeding amount entering the anaerobic tank can be adjusted by the DCS control device, so that the gas production amount of the anaerobic tank is controlled; on the other hand, the storage amount of the methane in the gas storage bag body 20 obtained by the gas storage bag body height sensor and the gas storage bag body pressure sensor is used for adjusting the feeding amount into the anaerobic tank so as to control the gas production amount of the anaerobic tank.
Further, booster fan's import still is provided with the flowmeter, the flowmeter be connected with DCS controlling means electricity, can obtain user's gas consumption through the flowmeter, can adjust booster fan's rotational speed at any time, know whether in order to satisfy user's demand through the pressure that fan export pressure transmitter obtained.
Furthermore, whether the desulfurizer is still effective or not can be timely known through the content of hydrogen sulfide in the methane obtained by the gas detector, in a preferred example, the content of the hydrogen sulfide is controlled to be less than 100ppm by the outlet of the desulfurization tank, and when the content of the hydrogen sulfide detected by the gas detector exceeds 100ppm, the alarm instrument arranged on the DCS control device can give an alarm to timely remind an operator of timely repairing the desulfurization tank and timely replacing the desulfurizer.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. A gas tank system controlled by a membrane bag suspension is characterized by comprising an anaerobic fermentation device, a gas tank device, a supercharging device and a dehydration and desulfurization device;
gas generated in the anaerobic fermentation device enters a dehydration and desulfurization device through a supercharging device; and/or
The gas generated in the anaerobic fermentation device is firstly stored in the gas storage tank device and then is conveyed to the dehydration and desulfurization device through the supercharging device.
2. The membrane bag suspension controlled air tank system according to claim 1, wherein the anaerobic fermentation device comprises an anaerobic tank and a positive and negative pressure protector;
the gas outlet of the anaerobic tank is connected with a pipeline of a gas storage tank device;
the positive and negative pressure protector is internally provided with a water seal and is respectively connected with the anaerobic tank and the dehydration desulfurization device through pipelines.
3. The membrane bag suspension controlled gas tank system according to claim 1, wherein the gas tank device includes a gas tank main body (10), a gas tank bag body (20), a suspension mechanism, and a fixed base;
the gas storage bag body (20) is arranged in the gas storage tank main body (10);
the bottom surface of the air storage bag body (20) is an open surface;
the bottom opening edge of the air storage bag body (20) is fastened and sealed through a fixed foundation;
the top of the air storage bag body (20) is movably matched with the suspension mechanism;
the bottom of the air storage bag body (20) is provided with an air channel (30) communicated with the outside;
when gas is exhausted from the gas storage bag body (20) through the gas passage (30), the suspension mechanism can limit the descending height of the top of the gas storage bag body (20).
4. The membrane bag suspension controlled gas holder system according to claim 3, wherein the suspension mechanism comprises a suspension wheel (40), a stopper rod (50), a counterweight (60), a stopper rope (70), and a guide ring (80);
the suspension wheel (40) is arranged on the top of the inner side of the gas holder main body (10);
the counterweight (60) is arranged outside the gas holder main body (10);
one end of the limiting rope (70) is connected with the top of the air storage bag body (20), and the other end of the limiting rope (70) is connected with the counterweight (60) through the suspension wheel (40) and the limiting rod (50) in sequence;
a first reinforcing part (21) is arranged at the connecting part of the limiting rope (70) and the top of the air storage bag body (20);
the guide ring (80) is arranged between the suspension wheel (40) and the limiting rod (50);
the guide ring (80) can guide the limiting rope (70) to slide;
when the gas in the gas storage bag body (20) is reduced and descends, the limiting rope (70) descends along with the gas storage bag body (20), at the moment, the counterweight (60) moves close to the limiting rod (50) along with the other end of the limiting rope (70) until the counterweight (60) is blocked by the limiting rod (50) for limiting, the top of the gas storage bag body (20) does not descend any more, and the lowest surface of the top of the gas storage bag body (20) is higher than the ground at the moment.
5. The membrane bag suspension controlled gas holder system according to claim 3, wherein a support body (11) and a support rope (12) are further provided inside the gas holder body (10);
one end of the support rope (12) is connected with the support body (11), and the other end of the support body (11) is connected with the side surface of the air storage bag body (20);
a second reinforcing part (22) is arranged at the part where the support body (11) is connected with the side surface of the air storage bag body (20);
the number of the supporting bodies (11) is multiple, and the multiple supporting bodies (11) are uniformly or non-uniformly arranged on the circumferential direction of the inner wall of the gas holder body (10).
6. The membrane bag suspension controlled air reservoir system of claim 3, wherein the fixed base comprises a base seat (90);
the plurality of base seats (90) enclosing a sealed annular structure;
the bottom opening edge of the air storage bag body (20) is connected with a base seat (90) in a sealing way.
7. The membrane bag suspension controlled air tank system according to claim 3, wherein water condensers are respectively installed on an air tank inlet pipeline (101) and an air tank outlet pipeline (102) of the air tank device.
8. The membrane bag suspension controlled gas holder system according to claim 1, wherein the pressurization means comprises two parallel booster fans;
an inlet and an outlet of the booster fan are provided with valves;
and a fan outlet pressure gauge and a fan outlet pressure transmitter are arranged at the outlet of the booster fan.
9. The membrane bag suspension controlled gas holder system according to claim 1, wherein the dehydration desulfurization device includes a gas-water separator and a desulfurization tank.
10. The membrane bag suspension controlled gas holder system according to claim 1, further comprising a DCS control device;
an alarm instrument is arranged on the DCS control device;
the anaerobic fermentation device is provided with an anaerobic tank pressure transmitter and an anaerobic tank temperature sensor;
the gas storage tank device is provided with a gas storage bag height sensor and a gas storage bag pressure sensor;
a gas detector is arranged at the outlet of the dehydration desulfurization device;
the DCS control device is electrically connected with the anaerobic tank pressure transmitter, the anaerobic tank temperature sensor, the gas storage bag height sensor, the gas storage bag pressure sensor and the gas detector respectively.
CN201911312838.3A 2019-12-18 2019-12-18 Air tank system with membrane bag suspension control Pending CN110951607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911312838.3A CN110951607A (en) 2019-12-18 2019-12-18 Air tank system with membrane bag suspension control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911312838.3A CN110951607A (en) 2019-12-18 2019-12-18 Air tank system with membrane bag suspension control

Publications (1)

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CN110951607A true CN110951607A (en) 2020-04-03

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116658795A (en) * 2023-07-24 2023-08-29 中国电建集团华东勘测设计研究院有限公司 Large-volume pressure-bearing gas storage device of compressed carbon dioxide energy storage system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116658795A (en) * 2023-07-24 2023-08-29 中国电建集团华东勘测设计研究院有限公司 Large-volume pressure-bearing gas storage device of compressed carbon dioxide energy storage system
CN116658795B (en) * 2023-07-24 2023-11-14 中国电建集团华东勘测设计研究院有限公司 Large-volume pressure-bearing gas storage device of compressed carbon dioxide energy storage system

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