CN113234501A

CN113234501A - Biogas dehydration system for agricultural garbage power generation

Info

Publication number: CN113234501A
Application number: CN202110514875.3A
Authority: CN
Inventors: 张智; 方坚龙
Original assignee: Individual
Current assignee: Shandong Zhongrun Biomass Energy Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-08-10
Anticipated expiration: 2041-05-12
Also published as: CN113234501B

Abstract

The invention relates to the technical field of garbage power generation, and discloses a biogas dehydration system for agricultural garbage power generation, which comprises a support frame, a dehydration tank body, a driving motor, a humidity sensor, a three-way electromagnetic valve, a controller and a desulfurization tank, wherein a long-range liquid separator is arranged at the lower part inside the dehydration tank body, a communicated reflux plate and a supporting guide plate are sequentially arranged inside the dehydration tank body and above the long-range liquid separator, and a rotary liquid separator is arranged at the upper part inside the dehydration tank body. Rotatory knockout is constantly rotatory at a high speed under driving motor's effect, through the effect of a plurality of absorption blades, absorb the blade and constantly absorb moisture from marsh gas, and throw away water from the edge that absorbs the blade through the rotatory centrifugal action of high-speed rotation of rotatory knockout, make the part that absorbs the blade and be close to rotatory knockout central authorities can keep the absorption to the moisture in the marsh gas, make the absorption blade can constantly absorb the moisture in the marsh gas, it is effectual to possess the dehydration, high dehydration efficiency, advantages such as long service life, in order to reach the purpose that moisture got rid of.

Description

Biogas dehydration system for agricultural garbage power generation

Technical Field

The invention relates to the technical field of garbage power generation, in particular to a biogas dehydration system for agricultural garbage power generation.

Background

The agricultural garbage power generation is to utilize agricultural garbage, such as crop straws, weeds and the like, to generate biogas through anaerobic fermentation treatment by utilizing the catabolism of various microorganisms with various types, large quantities and different functions under an anaerobic condition, so as to drive a biogas generator set to generate power, so that the environmental problem in biogas engineering is solved, a large amount of waste is consumed, the environment is protected, the emission of greenhouse gas is reduced, waste is changed into wealth, a large amount of heat energy and electric energy are generated, the environmental protection concept of energy recycling is met, and meanwhile, huge economic benefits are brought. The biogas power generation has the characteristics of efficiency creation, energy conservation, safety, environmental protection and the like, and is a distributed energy source with wide distribution and low price.

The traditional methane tank directly supplies methane to the power generation device to be combusted and generated by the power generation device, but when the methane escapes from the methane tank, the methane often carries saturated steam and a large amount of sulfur-containing harmful gas, the steam is easy to act together with other components in the methane to wash the methane power generation device and the like, and under the action of the gas with high water content, the methane power generation device and the like are easy to be corroded by oxygen, the service life of the power generation device and the like is greatly reduced, and due to the action of the steam in the methane, the combustion heat value of the methane is greatly reduced when the methane is combusted, so that the methane power generation efficiency is reduced.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the biogas dehydration system for agricultural garbage power generation, which has the advantages of good dehydration effect, high dehydration efficiency, long service life and the like, and solves the problem that the power generation device and the like are easily corroded due to excessive water content in biogas.

(II) technical scheme

In order to solve the technical problems that the water content in the biogas is too large and the power generation device and the like are easy to corrode, the invention provides the following technical scheme: a biogas dehydration system for agricultural garbage power generation comprises a support frame, a dehydration tank body, a driving motor, a humidity sensor, a three-way electromagnetic valve, a controller and a desulfurization tank, wherein the dehydration tank body is fixed at the center of the top end of the support frame, the center of the bottom end of the support frame is provided with a motor platform, the lower part of the inner part of the dehydration tank body is provided with a long-range liquid separator, a communicating reflux plate and a supporting guide plate are sequentially arranged in the dehydration tank body and above the long-range liquid separator, the upper part of the inner part of the dehydration tank body is provided with a rotary liquid separator, the top end of the motor platform is provided with the driving motor, the top end of the dehydration tank body is fixedly provided with a steering reflux device, the top end of the steering reflux device is provided with the desulfurization tank, the rotary liquid separator comprises a rotary main body, a central driving gear, a plurality of planetary speed-changing gears and a shielding cover, the central driving gear is rotatably connected with the top end of the rotary main body, the planetary speed change gears are arranged on the outer sides of the central driving gears respectively, the shielding cover is fixed to the top end of the rotating main body, the rotating main body comprises a lower supporting plate and an upper fixing plate, a plurality of absorbing blades are arranged between the lower supporting plate and the upper fixing plate and wound around the center of the rotating main body in a circumferential mode, and the absorbing blades are made of water absorbing materials.

Preferably, a fixed annular groove is formed in the bottom end of the lower supporting plate, a driven gear ring is arranged at the top end of the upper fixing plate, and a planetary gear limiting groove is formed in the upper surface of the upper fixing plate and located on the inner side of the driven gear ring.

Preferably, a connecting pin slot is formed in the bottom end of the central driving gear, a plurality of limiting rods are arranged at the bottom ends of the planetary speed change gears, the planetary speed change gears are limited on the top end of the rotating main body through the limiting rods and the limiting slots of the planetary speed change gears, the central driving gear is meshed with the planetary speed change gears, the planetary speed change gears are meshed with the driven gear rings, a driving connecting rod is arranged at the top end of the driving motor, and a driving pin is arranged at the top end of the driving connecting rod.

Preferably, the driving connecting rod penetrates through the dewatering tank body, the long-range liquid separator, the communicated reflux plate and the supporting guide plate in sequence, the driving pin is matched with the connecting pin slot, the driving motor drives the central driving gear to rotate through the driving connecting rod and the driving pin, and the rotating speed of the central driving gear is converted into the driven gear ring through a plurality of planetary speed change gears to rotate together with the whole rotating main body.

Preferably, the long-range knockout is the hollow and bottom open-ended jar of body, long-range knockout outside top one side is provided with communicating pipe, the long-range knockout bottom is provided with a plurality of support columns, the top of a plurality of support columns is convex, long-range knockout central authorities are provided with the chamber that leads through, the inside spiral that is provided with of long-range knockout divides the liquid platform, the spiral divides the liquid platform to be the extension arc platform that the spiral set up downwards, the spiral divides the liquid platform to be used for separating the long-range knockout provides longer branch liquid route, the long-range knockout link up and be provided with a plurality of air vents on the chamber wall, it is a plurality of the air vent is in the tangent position evenly distributed of the lower surface of spiral divides the liquid platform.

Preferably, the central authorities of the dehydration jar body one side are provided with the feeding bleeder pipe, the dehydration jar body is kept away from one side bottom of feeding bleeder pipe is provided with the fluid-discharge tube, the internal portion bottom of dehydration jar is provided with the slope slip table, the slope slip table to the downward setting of fluid-discharge tube lopsidedness, the bin outlet has been seted up to dehydration jar body top central authorities, the feeding bleeder pipe divide into feed inlet and backward flow mouth, the feeding bleeder pipe with communicate between communicating pipe, the feeding bleeder pipe is used for the feeding to long-range knockout.

Preferably, the communicating reflux plate is a circular disc with an upward protrusion in the center, a central through hole is formed in the center of the communicating reflux plate, a plurality of air guide holes are symmetrically formed in the communicating reflux plate and located on the left side and the right side of the central through hole, arc-shaped reflux grooves are symmetrically formed in the outer side surface of the communicating reflux plate and located on the front side and the rear side of the central through hole, the supporting guide plate is a circular disc with an upward protrusion in the center, a supporting ring is arranged in the center of the communicating reflux plate, a plurality of overflow grooves are formed in the outer side of the supporting guide plate, and the overflow grooves are circumferentially arranged around the central axis of the supporting guide plate.

Preferably, the steering reflux device comprises a three-way pipe, a reflux pipe, a humidity sensor, a three-way electromagnetic valve and a controller, the bottom end of the three-way pipe is communicated with the discharge port, the top end of the three-way pipe is communicated with the desulfurization tank, the left side of the three-way pipe is communicated with the reflux pipe, the bottom end of the reflux pipe is communicated with the reflux port, the humidity sensor is arranged at the bottom end inside the three-way pipe, the three-way electromagnetic valve is used for controlling the flow direction of air flow in the three-way pipe, the controller is used for receiving a humidity signal transmitted by the humidity sensor, and the controller controls the three-way electromagnetic valve according to the humidity signal.

Preferably, the inside a plurality of sulphur removal boards that are provided with of digester, all hold the desulfurizing agent on the sulphur removal board, the digester with turn to through flange joint between the backward flow ware, the digester can freely be dismantled.

(III) advantageous effects

Compared with the prior art, the invention provides a biogas dehydration system for agricultural garbage power generation, which has the following beneficial effects:

1. this kind of marsh gas dewatering system for agricultural refuse power generation, gas gets into in the rotatory knockout, rotatory knockout is constantly rotatory at a high speed under driving motor's effect, effect through a plurality of absorption blades, the absorption blade constantly absorbs moisture from marsh gas, and throw away water from the edge that absorbs the blade through the rotatory centrifugal action of the high-speed rotation of rotatory knockout, make the part that absorbs the blade and be close to rotatory knockout central authorities can keep the absorption to the moisture in the marsh gas, make the absorption blade constantly absorb the moisture in the marsh gas, in order to reach the purpose that moisture got rid of.

2. The biogas dehydration system for agricultural garbage power generation is characterized in that biogas for removing water under the action of the rotary liquid separator is conveyed into the steering reflux device through the discharge port, the controller is used for receiving a humidity signal transmitted by the humidity sensor and controlling the three-way electromagnetic valve according to the humidity signal, so that the moisture content in the biogas conveyed into the three-way pipe is detected by the humidity sensor, and moisture content data is transmitted to the controller in real time, when the moisture content is higher, the discharge port is communicated with the reflux pipe by controlling the three-way electromagnetic valve by the controller, and the discharge port and the desulfurization tank are sealed, so that the biogas with high moisture content is conveyed into the interior of the dehydration tank body again through the reflux pipe for reprocessing, multi-stage dehydration is realized, when the moisture content meets the requirement, the discharge port is communicated with the desulfurization tank by controlling the three-way electromagnetic valve by the controller, and the discharge port and the return pipe are sealed, so that the methane can be sent into the desulfurizing tank for treatment, and the moisture content can meet the required requirements.

3. This kind of a marsh gas dewatering system for agricultural refuse power generation, through setting up the digester, detach the sulphide component in the marsh gas in the digester, reduce the power generation facility's to the rear end corrosion, effectively guarantee rear end power generation facility's life to sulphide component in order to detach the marsh gas through the setting of digester prevents sulphide component in the electricity generation in-process to power generation facility's corrosion, extension power generation facility's life.

4. This kind of marsh gas dewatering system for agricultural refuse power generation, liquid water collects the in-process in the bottom of the dehydration jar body, the effect through slope slip table makes can discharge completely the liquid of the internal portion of dehydration jar through the fluid-discharge tube, and the effect through slope slip table increases the height of the liquid of same volume, make still can carry out the liquid seal to the fluid-discharge tube top under less liquid, cause danger through fluid-discharge tube escape device with reduction flowing back in-process marsh gas, improve marsh gas dewatering device's security.

5. This kind of a marsh gas dewatering system for agricultural refuse power generation, the circulation route of the marsh gas that contains vapor is divided the spiral channel extension that the platform constitutes through the spiral, make the collision between marsh gas and spiral divide the liquid platform to make steam divide the liquid platform surface condensation of spiral in, increase the condensation route of marsh gas, improve the condensation effect of the steam in the marsh gas, and a plurality of air vents through the tangent position evenly distributed of the lower surface of spiral liquid platform, the position of air vent is on spiral channel's top promptly, make marsh gas can escape to lining up intracavity portion through the air vent, with the inside gas pressure of long-range knockout that reduces, thereby reduce the erosion and corrosion of marsh gas to long-range knockout, in order to improve long-range knockout's life.

6. This kind of a marsh gas dewatering system for agricultural refuse power generation, through the position of the fixed whole rotatory knockout in solid fixed ring groove, guarantee that rotatory knockout can not produce the skew condition that causes the operation of rotatory knockout unstable at high-speed rotatory in-process, and inject planetary gear's position through the planetary gear spacing groove, can evenly provide stable rotational speed to driven ring gear and even whole rotating main body with assurance planetary gear, make the operation that whole rotating main body can be normal carry out dewatering work.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of the overall explosion of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic cross-sectional view of the support frame, dewatering tank, communicating return plate and support baffle of the present invention;

FIG. 5 is a schematic cross-sectional view of a long-range liquid separator according to the present invention;

FIG. 6 is a schematic perspective view of the communicating return plate and support baffle of the present invention;

FIG. 7 is an exploded view of the rotary dispenser of the present invention;

FIG. 8 is a schematic cross-sectional view of a rotary dispenser of the present invention;

FIG. 9 is a schematic perspective view of a reverse flow device and a desulfurization tank of the present invention;

FIG. 10 is a schematic partial cross-sectional view of a diverted reflux vessel and a desulfurization tank of the present invention.

In the figure: 1. a support frame; 11. a motor table; 2. a dewatering tank body; 21. a feed branch pipe; 22. a liquid discharge pipe; 23. inclining the sliding table; 24. a discharge outlet; 25. a feed inlet; 26. a return port; 3. a long-range liquid separator; 31. a communicating pipe; 32. a support pillar; 33. a through cavity; 34. a spiral liquid separating table; 35. a vent hole; 4. the reflux plate is communicated; 41. a central through hole; 42. an air vent; 43. an arc-shaped reflux groove; 5. supporting the deflector; 51. a support ring; 52. an overflow trough; 6. rotating the liquid separator; 61. a rotating body; 611. a lower support plate; 612. an upper fixing plate; 613. an absorbing blade; 614. fixing the annular groove; 615. a driven gear ring; 616. a planetary gear limiting groove; 62. a center drive gear; 621. a connecting pin slot; 63. a planetary transmission gear; 631. a limiting rod; 64. a shield case; 7. a drive motor; 71. a drive link; 72. a drive pin; 8. a steering reflux device; 81. a three-way pipe; 82. a return pipe; 83. a humidity sensor; 84. a three-way solenoid valve; 85. a controller; 9. a devulcanizer; 91. a sulfur removal plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As described in the background of the invention, the prior art has shortcomings, and in order to solve the above technical problems, the present application proposes a biogas dehydration system for agricultural garbage power generation.

Referring to fig. 1-10, a biogas dehydration system for agricultural garbage power generation comprises a support frame 1, a dehydration tank body 2, a driving motor 7, a humidity sensor 83, a three-way solenoid valve 84, a controller 85 and a desulfurization tank 9, wherein the dehydration tank body 2 is fixed at the center of the top end of the support frame 1, a motor platform 11 is arranged at the center of the bottom end of the support frame 1, a long-range liquid distributor 3 is arranged at the lower part inside the dehydration tank body 2, a communicating reflux plate 4 and a supporting guide plate 5 are sequentially arranged inside the dehydration tank body 2 and above the long-range liquid distributor 3, a rotary liquid distributor 6 is arranged at the upper part inside the dehydration tank body 2, the driving motor 7 is arranged at the top end of the motor platform 11, a steering reflux device 8 is fixedly arranged at the top end of the dehydration tank body 2, the desulfurization tank 9 is arranged at the top end of the steering reflux device 8, the rotary liquid distributor 6 comprises a rotary main body 61, a central driving gear 62, a plurality of planetary speed change gears 63 and a shielding cover 64, the central driving gear 62 is rotatably connected with the top end of the rotating main body 61, a plurality of planetary speed-changing gears 63 are respectively arranged outside the central driving gear 62, a shielding cover 64 is fixed on the top end of the rotating main body 61, the rotating main body 61 comprises a lower supporting plate 611 and an upper fixing plate 612, a plurality of absorbing blades 613 are arranged between the lower supporting plate 611 and the upper fixing plate 612, the absorbing blades 613 are arranged around the center circumference of the rotating main body 61, and are made of water absorbing materials, so that biogas raw materials containing saturated water vapor sent into the dehydration tank body 2 are subjected to preliminary water removal by the long-range liquid separator 3, the biogas escapes from the long-range liquid separator 3, moisture in the biogas is further removed under the action of the communicating reflux plate 4, the biogas is completely sent into the rotating liquid separator 6 under the action of the supporting guide plate 5, and the rotating liquid separator 6 continuously rotates at high speed under the action of the driving motor 7, the absorbing blades 613 continuously absorb water from the biogas under the action of the absorbing blades 613, and the water is thrown out from the edges of the absorbing blades 613 through the centrifugal action of the high-speed rotation of the rotary liquid distributor 6, so that the absorbing blades 613 can continuously absorb the water in the biogas to achieve the purpose of removing the water, the biogas enters the steering reflux device 8 through the top end of the dehydration tank body 2 after passing through the rotary liquid distributor 6, after the water content is confirmed in the steering reflux device 8, the biogas with overhigh humidity is conveyed back to the inside of the dehydration tank body 2 through the steering reflux device 8 to be dehydrated again, and the biogas with the humidity meeting the requirement is conveyed into the desulfurization tank 9 to be desulfurized and then is conveyed into the power generation device through the output device.

Further, the bottom end of the lower support plate 611 is provided with a fixed ring groove 614, the top end of the upper fixed plate 612 is provided with a driven ring gear 615, the upper surface of the upper fixed plate 612 is located inside the driven ring gear 615 and is provided with a planetary gear limiting groove 616, so that the position of the whole rotary liquid distributor 6 is fixed through the fixed ring groove 614, the rotary liquid distributor 6 is guaranteed not to deviate in the high-speed rotation process to cause unstable operation of the rotary liquid distributor 6, and the position of the planetary speed change gear 63 is limited through the planetary gear limiting groove 616, so that the planetary speed change gear 63 can uniformly provide stable rotation speed for the driven ring gear 615 and even the whole rotary main body 61, and the whole rotary main body 61 can be normally operated to remove water.

Furthermore, a connecting pin slot 621 is formed at the bottom end of the center driving gear 62, a limiting rod 631 is disposed at the bottom end of the plurality of planetary speed change gears 63, the plurality of planetary speed change gears 63 are limited by the limiting rod 631 and the planetary gear limiting slot 616 to move at the top end of the rotating body 61, the center driving gear 62 is engaged with the plurality of planetary speed change gears 63, the plurality of planetary speed change gears 63 are engaged with the driven gear ring 615, a driving link 71 is disposed at the top end of the driving motor 7, a driving pin 72 is disposed at the top end of the driving link 71, so that the driving pin 72 is engaged with each other and fixed by a pin joint between the driving pin 72 and the connecting pin slot 621, so that the driving motor 7 provides a stable rotating speed to the center driving gear 62 through the driving link 71, and then the rotating speed is reduced to a certain extent and converted into the rotating speed of the driven gear ring 615 through the action of the plurality of planetary speed change gears 63, and then drive whole main rotating body 61 and rotate for the absorption blade 613 that sets up in main rotating body 61 absorbs the work, thereby controls the rotational speed of rotatory knockout 6 through driving motor 7, makes under driving motor 7's effect, makes to detach most steam from marsh gas through the effect of rotatory knockout 6, guarantees the effect of marsh gas dehydration, promotes the efficiency of marsh gas dehydration.

Further, the driving connecting rod 71 sequentially penetrates through the dehydration tank body 2, the long-range liquid separator 3, the communication reflux plate 4 and the supporting guide plate 5, the driving pin 72 is engaged with the connecting pin slot 621, the driving motor 7 drives the central driving gear 62 to rotate through the driving connecting rod 71 and the driving pin 72, the rotating speed of the central driving gear 62 is converted into a driven gear ring 615 through a plurality of planet speed change gears 63 to rotate together with the whole rotating main body 61, in practical application, the driving connecting rod 71 is sealed with the through dehydration tank body 2 and the communication reflux plate 4, liquid water is ensured not to flow out of the device between the dehydration tank body 2 and the driving connecting rod 71, methane is ensured not to flow through a gap between the communication reflux plate 4 and the driving connecting rod 71, the methane is ensured to be blocked by the communication reflux plate 4 when passing through the communication reflux plate 4, and water vapor is further condensed on the communication reflux plate 4, the dewatering effect is improved.

Furthermore, the long-range liquid separator 3 is a hollow tank body with an opening at the bottom end, a communicating pipe 31 is arranged on one side of the top end of the outer side of the long-range liquid separator 3, a plurality of supporting columns 32 are arranged at the bottom end of the long-range liquid separator 3, the top ends of the supporting columns 32 are arc-shaped, a through cavity 33 is arranged in the center of the long-range liquid separator 3, a spiral liquid separating table 34 is arranged in the long-range liquid separator 3, the spiral liquid separating table 34 is an extended arc-shaped table which is arranged in a spiral downward mode, the spiral liquid separating table 34 is used for separating the long-range liquid separator 3 to provide a longer liquid separating path, a plurality of vent holes 35 are arranged on the wall of the through cavity 33 of the long-range liquid separator 3, the plurality of vent holes 35 are uniformly distributed at tangential positions on the lower surface of the spiral liquid separating table 34, so that biogas raw materials passing through the feeding branch pipe 21 are circulated in a spiral channel formed by the spiral liquid separating table 34 in the long-range liquid separator 3 through the communicating pipe 31, the spiral channel formed by the spiral liquid separating table 34 is used for extending the path of biogas containing water vapor, make collision between marsh gas and spiral liquid separating table 34 make steam condense on spiral liquid separating table 34 surface while, increase the condensation route of marsh gas, improve the condensation effect of steam in the marsh gas, and a plurality of air vents 35 through the tangent position evenly distributed of spiral liquid separating table 34's lower surface, the position of air vent 35 is at the top of screw channel promptly, make marsh gas can escape to penetrating through inside the chamber 33 through air vent 35, with the inside gas pressure of reduction long-range knockout 3, thereby reduce the erosion and corrosion of marsh gas to long-range knockout 3, with the life of improvement long-range knockout 3.

Furthermore, a feeding branch pipe 21 is arranged in the center of one side of the dewatering tank body 2, a drain pipe 22 is arranged at the bottom end of one side of the dewatering tank body 2, which is far away from the feeding branch pipe 21, an inclined sliding table 23 is arranged at the bottom end inside the dewatering tank body 2, the inclined sliding table 23 is obliquely and downwards arranged towards one side of the drain pipe 22, a discharge outlet 24 is arranged in the center of the top end of the dewatering tank body 2, the feeding branch pipe 21 is divided into a feed inlet 25 and a return outlet 26, the feeding branch pipe 21 is communicated with a communicating pipe 31, the feeding branch pipe 21 is used for feeding the long-range liquid distributor 3, so that the liquid inside the dewatering tank body 2 can be completely discharged through the drain pipe 22 under the action of the inclined sliding table 23, the height of the liquid with the same volume is increased through the action of the inclined sliding table 23, the liquid sealing can still be carried out on the top of the drain pipe 22 under the condition of less liquid, and the danger caused by the methane escaping from the drain pipe 22 in the liquid discharging process is reduced, the safety of the methane dehydration device is improved.

Furthermore, the communicating reflux plate 4 is a circular disc with a center protruding upwards, the center of the communicating reflux plate 4 is provided with a center through hole 41, the communicating reflux plate 4 is symmetrically provided with a plurality of air guide holes 42 at the left and right sides of the center through hole 41, the outer surface of the communicating reflux plate 4 is symmetrically provided with arc-shaped reflux grooves 43 at the front and back sides of the center through hole 41, the supporting guide plate 5 is a circular disc with a center protruding upwards, the center of the communicating reflux plate 4 is provided with a supporting ring 51, the outer side of the supporting guide plate 5 is provided with a plurality of overflow grooves 52, the plurality of overflow grooves 52 are circumferentially arranged around the central axis of the supporting guide plate 5, so that methane containing water vapor can only be upwards conveyed through the air guide holes 42 under the action of the plurality of air guide holes 42 on the communicating reflux plate 4, the water vapor can be further condensed on the communicating reflux plate 4, and the water vapor can be gathered to the periphery under the action of the communicating reflux plate 4 with a low center height, the inner wall through the dehydration jar body 2 flows down, and make the top liquid water that condenses to continue to flow down along the inner wall of the dehydration jar body 2 through intercommunication flow back plate 4 through arc-shaped reflux groove 43, and through the effect that supports guide plate 5, make the marsh gas that contains steam can only let in through support ring 51 and carry out the liquid separation in rotatory knockout drum 6, guarantee the effect of liquid separation, and make the top liquid water that condenses to continue to flow down through the inner wall that supports guide plate 5 along the dehydration jar body 2 through a plurality of overflow launders 52, so that the liquid water can be collected at the dehydration jar body 2 bottom under the effect of gravity.

Further, the steering reflux device 8 comprises a three-way pipe 81, a reflux pipe 82, a humidity sensor 83, a three-way solenoid valve 84 and a controller 85, the bottom end of the three-way pipe 81 is communicated with the discharge port 24, the top end of the three-way pipe 81 is communicated with the desulfurizing tank 9, the left side of the three-way pipe 81 is communicated with the reflux pipe 82, the bottom end of the reflux pipe 82 is communicated with the reflux port 26, the humidity sensor 83 is arranged at the bottom end inside the three-way pipe 81, the three-way solenoid valve 84 is used for controlling the airflow flowing direction in the three-way pipe 81, the controller 85 is used for receiving a humidity signal of the humidity sensor 83, the controller 85 controls the three-way solenoid valve 84 according to the humidity signal, so as to detect the water content in the biogas conveyed into the three-way pipe 81 through the humidity sensor 83 and transmit the water content data to the controller 85 in real time, when the water content is higher, the discharge port 24 is communicated with the reflux pipe 82 through the three-way solenoid valve 84 controlled by the controller 85, and seal between bin outlet 24 and digester 9, make the marsh gas of high water content lose through the back flow pipe 82 and carry back to the inside retreatment that carries out of the dehydration jar body 2 again, when the water content reaches the requirement, communicate between bin outlet 24 and digester 9 through controller 85 control three-way solenoid valve 84, and seal between bin outlet 24 and the back flow pipe 82, make marsh gas can be handled in sending into digester 9, in order to guarantee that moisture content reaches required requirement, and then reduce the corruption to the power generation facility of rear end, effectively guarantee rear end power generation facility's life.

Further, the inside a plurality of sulphur removal boards 91 that are provided with of digester 9, all hold the desulfurizing agent on the sulphur removal board 91, through flange joint between digester 9 and the steering reflux ware 8, digester 9 can freely be dismantled to sulphide component in order to detach the marsh gas through setting up of digester 9 prevents that sulphide component from to power generation facility's corruption, extension power generation facility's life at the power generation in-process.

The working principle is as follows: when in use, the methane generating device is connected with the feed inlet 25 of the feed branch pipe 21 of the methane dehydrating device, the methane generated in the methane generating device carries saturated vapor, the saturated vapor is fed into the dehydrating tank body 2 through the feed inlet 25 via the feed branch pipe 21, the methane raw material containing the saturated vapor in the feed branch pipe 21 is conveyed into the long-range liquid separator 3 through the communicating pipe 31, the spiral liquid separating table 34 forms a spiral channel inside the long-range liquid separator 3, the methane raw material circulates in the spiral channel, the flow path of the methane containing the vapor is prolonged through the spiral channel formed by the spiral liquid separating table 34, so that the condensation path of the methane is increased while the vapor is condensed on the surface of the spiral liquid separating table 34 due to collision between the methane and the spiral liquid separating table 34, the condensation effect of the vapor in the methane is improved, and the plurality of vent holes 35 are uniformly distributed at the tangential positions on the lower surface of the spiral liquid separating table 34, the vent hole 35 is located at the top end of the spiral channel, so that the biogas can escape to the inside of the through cavity 33 through the vent hole 35, thereby reducing the gas pressure inside the long-range liquid separator 3, reducing the erosion corrosion of the biogas on the long-range liquid separator 3, and prolonging the service life of the long-range liquid separator 3.

Preliminary dehydration is carried out in long-distance knockout 3 inside for the bottom opening that the water conservancy diversion that the condensate passes through spiral liquid separating table 34 surface carries to the inside bottom of the dehydration jar body 2 and keeps in through long-distance knockout 3, marsh gas escapes to through the chamber 33 and even inside the dehydration jar body 2 through the effect of a plurality of air vents 35, perhaps escape to the inside of the dehydration jar body 2 through the bottom opening of long-distance knockout 3, under the effect of gaseous self gravity, and under the negative pressure effect that rotatory knockout 6 high-speed rotation produced, the marsh gas that still contains a certain amount of vapor continues the rebound in the dehydration jar body 2 inside.

In the process of gas rising, the methane containing water vapor can be conveyed upwards only through the air holes 42 under the action of the air holes 42 on the communicated reflux plate 4, so that the water vapor can be further condensed on the communicated reflux plate 4, the water vapor can be gathered to the periphery under the action of the communicated reflux plate 4 with high center and low periphery, the methane containing water vapor flows downwards through the inner wall of the dehydration tank body 2, the condensed liquid water above the methane can continuously flow downwards along the inner wall of the dehydration tank body 2 through the communicated reflux plate 4 through the arc-shaped reflux groove 43, the methane containing water vapor can only be introduced into the rotary liquid separator 6 through the support ring 51 for liquid separation through the action of the support guide plate 5, the liquid separation effect is ensured, and the condensed liquid water above the methane can continuously flow downwards along the inner wall of the dehydration tank body 2 through the support guide plate 5 through the plurality of overflow grooves 52, so that the liquid water can be collected at the bottom end of the dewatering tank body 2 under the action of gravity.

Gas enters the rotary liquid distributor 6, the rotary liquid distributor 6 continuously rotates at a high speed under the action of the driving motor 7, the absorbing blades 613 continuously absorb water from the biogas under the action of the absorbing blades 613, and water is thrown out from the edges of the absorbing blades 613 through the centrifugal action of the high-speed rotation of the rotary liquid distributor 6, so that the part, close to the center of the rotary liquid distributor 6, of the absorbing blades 613 can keep absorbing the water in the biogas, and the absorbing blades 613 can continuously absorb the water in the biogas to achieve the purpose of removing the water.

Since the driving motor 7 drives the central driving gear 62 to rotate through the driving link 71 and the driving pin 72, the rotation speed of the central driving gear 62 is converted into the driven gear ring 615 to rotate together with the whole rotating body 61 through the plurality of planetary speed-changing gears 63, so that the driving motor 7 provides a stable rotation speed for the central driving gear 62 through the driving link 71 by the engagement between the gears and the pin connection between the driving pin 72 and the connecting pin slot 621, and then the rotation speed is converted into the rotation speed of the driven gear ring 615 after being reduced to a certain extent through the action of the plurality of planetary speed-changing gears 63, so that the whole rotating body 61 is driven to rotate, so that the absorbing blade 613 arranged in the rotating body 61 performs absorbing work, so that the rotation speed of the rotary liquid distributor 6 is controlled through the driving motor 7, so that most of moisture is removed from the biogas through the action of the rotary liquid distributor 6 under the action of the driving motor 7, the effect of marsh gas dehydration is guaranteed, and the efficiency of marsh gas dehydration is improved.

The biogas from which water is removed under the action of the rotary liquid separator 6 is conveyed to the steering reflux device 8 through the discharge port 24, the controller 85 is used for receiving a humidity signal transmitted by the humidity sensor 83, the controller 85 controls the three-way electromagnetic valve 84 according to the humidity signal, so that the moisture content in the biogas conveyed into the three-way pipe 81 is detected by the humidity sensor 83, and moisture content data is transmitted to the controller 85 in real time, when the moisture content is high, the controller 85 controls the three-way electromagnetic valve 84 to communicate the discharge port 24 with the reflux pipe 82, and seals the discharge port 24 with the desulfurization tank 9, so that the biogas with high moisture content is conveyed back to the interior of the dehydration tank body 2 through the reflux pipe 82 for reprocessing, when the moisture content meets the requirement, the controller 85 controls the three-way electromagnetic valve 84 to communicate the discharge port 24 with the desulfurization tank 9, and seals the discharge port 24 with the reflux pipe 82, so that the marsh gas can be sent into the desulfurizing tank 9 for treatment to ensure that the moisture content meets the required requirements, further reduce the corrosion to the power generation device at the rear end, effectively ensure the service life of the power generation device at the rear end, and remove the sulfide components in the marsh gas through the arrangement of the desulfurizing tank 9, prevent the sulfide components from corroding the power generation device in the power generation process, and prolong the service life of the power generation device.

Liquid water collects the in-process in the dehydration jar body 2 bottom, makes through the effect of slope slip table 23 can discharge completely the inside liquid of dehydration jar body 2 through fluid-discharge tube 22 to the height of the liquid of the same volume is increased through the effect of slope slip table 23, makes still can carry out liquid seal to fluid-discharge tube 22 top under less liquid, causes danger through fluid-discharge tube 22 escape device to reduce flowing back in-process marsh gas, improves marsh gas dewatering device's security.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a marsh gas dewatering system for agricultural refuse power generation, includes support frame (1), the dehydration jar body (2), driving motor (7), controller (85) and digester (9), its characterized in that: the utility model discloses a dewatering tank, including the dewatering tank body (2), the inside lower part of the dewatering tank body (2) is provided with long-range knockout (3), the inside just is located of the dewatering tank body (2) the long-range knockout (3) top has set gradually intercommunication backward flow board (4) and has supported guide plate (5), the inside upper portion of the dewatering tank body (2) is provided with rotatory knockout (6).

2. The biogas dewatering system for agricultural waste power generation according to claim 1, wherein: the top end of the dewatering tank body (2) is fixedly provided with a steering reflux device (8), the top end of the steering reflux device (8) is provided with a desulfurizing tank (9), the rotary liquid distributor (6) comprises a rotary main body (61), a central driving gear (62), a plurality of planetary speed gears (63) and a shielding cover (64), the central driving gear (62) is rotatably connected with the top end of the rotary main body (61), the planetary speed gears (63) are respectively arranged at the outer side of the central driving gear (62), the shielding cover (64) is fixed at the top end of the rotary main body (61), the rotary main body (61) comprises a lower supporting plate (611) and an upper fixing plate (612), a plurality of absorbing blades (613) are arranged between the lower supporting plate (611) and the upper fixing plate (612), and a plurality of absorbing blades (613) are arranged around the center circumference of the rotary main body (61), the absorbing blades (613) are made of water absorbing material.

3. The biogas dewatering system for agricultural waste power generation according to claim 2, wherein: the bottom end of the lower supporting plate (611) is provided with a fixed annular groove (614), the top end of the upper fixing plate (612) is provided with a driven gear ring (615), and the upper surface of the upper fixing plate (612) is positioned on the inner side of the driven gear ring (615) and is provided with a planetary gear limiting groove (616).

4. The biogas dewatering system for agricultural waste power generation according to claim 3, wherein: connecting pin slot (621) has been seted up to central drive gear (62) bottom, and is a plurality of planet change gear (63) bottom is provided with gag lever post (631), and is a plurality of planet change gear (63) pass through gag lever post (631) with planet gear spacing groove (616) are spacing jointly and are in rotating main body (61) top removes, central drive gear (62) and a plurality of mesh between planet change gear (63), a plurality of planet change gear (63) with mesh between driven ring gear (615), driving motor (7) top is provided with drive connecting rod (71), drive connecting rod (71) top is provided with drive round pin (72).

5. The biogas dewatering system for agricultural waste power generation according to claim 4, wherein: the driving connecting rod (71) penetrates through the dewatering tank body (2), the long-range liquid distributor (3), the communicated reflux plate (4) and the supporting guide plate (5) in sequence, the driving pin (72) is matched with the connecting pin slot (621), the driving motor (7) drives the center driving gear (62) to rotate through the driving connecting rod (71) and the driving pin (72), and the rotating speed of the center driving gear (62) is converted into the driven gear ring (615) through a plurality of planetary speed changing gears (63) and rotates together with the whole rotating main body (61).

6. The biogas dewatering system for agricultural waste power generation according to claim 2, wherein: the long-range liquid separator (3) is a hollow tank body with an opening at the bottom end, a communicating pipe (31) is arranged on one side of the top end of the outer side of the long-range liquid separator (3), a plurality of support columns (32) are arranged at the bottom end of the long-range liquid separator (3), the top ends of the support columns (32) are arc-shaped, a through cavity (33) is arranged in the center of the long-range liquid separator (3), a spiral liquid separating table (34) is arranged in the long-range liquid separator (3), the spiral liquid separating table (34) is an extended arc-shaped table which is arranged downwards in a spiral manner, the spiral liquid separating table (34) is used for separating the long-range liquid separator (3) to provide a longer liquid separating path, the wall of the through cavity (33) of the long-range liquid separator (3) is provided with a plurality of vent holes (35), and the vent holes (35) are uniformly distributed at the tangential positions of the lower surface of the spiral liquid separating table (34).

7. The biogas dewatering system for agricultural waste power generation according to claim 6, wherein: the utility model discloses a dewatering tank, including the dewatering tank body (2), one side central authorities are provided with feeding bleeder pipe (21), the dewatering tank body (2) is kept away from one side bottom of feeding bleeder pipe (21) is provided with fluid-discharge tube (22), the inside bottom of the dewatering tank body (2) is provided with slope slip table (23), slope slip table (23) to fluid-discharge tube (22) lopsidedness sets up downwards, bin outlet (24) have been seted up to dewatering tank body (2) top central authorities, feeding bleeder pipe (21) divide into feed inlet (25) and return opening (26), feeding bleeder pipe (21) with communicate between communicating pipe (31), feeding bleeder pipe (21) are used for to long-range knockout (3) feeding.

8. The biogas dewatering system for agricultural waste power generation according to claim 2, wherein: the novel support flow guide plate is characterized in that the communicating backflow plate (4) is a circular disc with the center protruding upwards, a central through hole (41) is formed in the center of the communicating backflow plate (4), the communicating backflow plate (4) is located on the left side and the right side of the central through hole (41) and is symmetrically provided with a plurality of air guide holes (42), arc-shaped backflow grooves (43) are symmetrically formed in the front side and the rear side of the central through hole (41) on the outer surface of the communicating backflow plate (4), the support flow guide plate (5) is a circular disc with the center protruding upwards, a support ring (51) is arranged in the center of the communicating backflow plate (4), a plurality of overflow grooves (52) are formed in the outer side of the support flow guide plate (5), and a plurality of overflow grooves (52) are arranged around the circumference of the central axis of the support flow guide plate (5).

9. The biogas dewatering system for agricultural waste power generation according to claim 7, wherein: the steering reflux device (8) consists of a three-way pipe (81), a reflux pipe (82), a humidity sensor (83), a three-way electromagnetic valve (84) and a controller (85), the bottom end of the three-way pipe (81) is communicated with the discharge port (24), the top end of the three-way pipe (81) is communicated with the desulfurizing tank (9), the left side of the three-way pipe (81) is communicated with the return pipe (82), the bottom end of the return pipe (82) is communicated with the return port (26), the humidity sensor (83) is arranged at the bottom end in the three-way pipe (81), the three-way electromagnetic valve (84) is used for controlling the flow direction of the air flow in the three-way pipe (81), the controller (85) is used for receiving a humidity signal transmitted by the humidity sensor (83), the controller (85) controls the three-way solenoid valve (84) according to a humidity signal.

10. The biogas dewatering system for agricultural waste power generation according to claim 2, wherein: the desulfurizing device is characterized in that a plurality of desulfurizing plates (91) are arranged inside the desulfurizing tank (9), desulfurizing agents are contained on the desulfurizing plates (91), the desulfurizing tank (9) is connected with the steering reflux device (8) through flanges, and the desulfurizing tank (9) can be freely detached.