CN209338474U - A kind of device for biogas desulfurization dehydration - Google Patents

A kind of device for biogas desulfurization dehydration Download PDF

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Publication number
CN209338474U
CN209338474U CN201821811893.8U CN201821811893U CN209338474U CN 209338474 U CN209338474 U CN 209338474U CN 201821811893 U CN201821811893 U CN 201821811893U CN 209338474 U CN209338474 U CN 209338474U
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biogas
air inlet
gas outlet
water
moisture trap
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CN201821811893.8U
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黄红辉
郑业鲁
高利伟
伍高燕
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Guangdong Guangzhou Ken Animal Husbandry Engineering Research Institute Co Ltd
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Guangdong Guangzhou Ken Animal Husbandry Engineering Research Institute Co Ltd
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Abstract

The utility model discloses a kind of devices for biogas desulfurization dehydration, including water sealed tank, the first moisture trap, desulfurizing tower and the second moisture trap, the accommodating chamber for accommodating water is equipped in water sealed tank, water sealed tank upper end is equipped with water inlet, the first air inlet and the first gas outlet, and air inlet pipe one end connection methane-generating pit other end protrudes into accommodating chamber.First moisture trap can remove the moisture in biogas.Desulfurizing tower lower end is equipped with outlet valve and third air inlet upper end is equipped with third gas outlet, and third air inlet is connect with the second gas outlet.Second moisture trap upper end is equipped with the 4th air inlet and the 4th gas outlet lower end is equipped with the second drain valve.The utility model has the following beneficial effects: the impurity such as steam, the hydrogen sulfide in biogas can be removed efficiently, effective operation of biogas generator is ensured, maintenance and the cost of upkeep for reducing biogas generator have many advantages, such as that high treating effect, process conditions are simple, secondary pollution is few and high financial profit.

Description

A kind of device for biogas desulfurization dehydration
Technical field
The utility model relates to biogas power generation technology field, in particular to a kind of device for biogas desulfurization dehydration.
Background technique
Biogas is a kind of fuel gas with compared with high heating value, and main component is methane 55%-65%, carbon dioxide The gases such as 35%-45% and a small amount of nitrogen, ammonia, hydrogen, oxygen, hydrogen sulfide and steam.Pig farm be reduce production cost and The level of resources utilization is improved, most Large-scale pig farms handle waste using black film methane-generating pit, while efficient degradation waste water Biogas is generated to be used to generate electricity.
Due to sulfide hydrogen and steam in biogas, after hydrogen sulfide enters Biogas Generator Set, not only to the spark of engine The components such as plug, valve stem, cylinder sleeve, piston have corrosiveness, and can generate the polluted gas such as SO2 by burning.Biogas pipeline Ponding causes engine charge pressure loss excessive, and the frequent chaser of generating set causes unit generation power to decline to a great extent and increase Repair and maintenance cost is added.So the good operation in order to guarantee biogas generator, in addition to considering biogas desulfurization, it is also necessary to right Biogas is carried out dehydrating.Therefore biogas carries out desulfurization to biogas before entering biogas generator, dehydration prevents hydrogen sulfide The problem of becoming pig farm marsh gas power generation urgent need to resolve with steam damage equipment pollution environment.
Utility model content
The purpose of the utility model is to provide a kind of devices for biogas desulfurization dehydration, to solve the above problems.
One aspect according to the present utility model provides a kind of device for biogas desulfurization dehydration, including
Water sealed tank, the interior accommodating chamber being equipped with for accommodating water of water sealed tank, water sealed tank upper end is equipped with water inlet, for air inlet pipe First air inlet of insertion and the first gas outlet flowed out for biogas, air inlet pipe one end connection methane-generating pit other end protrude into appearance To receive intracavitary, water sealed tank lower end is equipped with water outlet, and water sealed tank can clean the foam and dirt that biogas is taken out of from black film methane-generating pit, and Cooling effect can be played to medium and high temperature biogas, also acting as check valve action in the apparatus prevents from being tempered.And water sealed tank is adopted Clear water, have many advantages, such as cost is relatively low, be easily changed with it is easy to operate, suitable for the pre- place before the biogas desulfurization of pig farm Reason.
First moisture trap, the first moisture trap upper end are equipped with the second air inlet and the second gas outlet lower end equipped with the One drain valve, the second air inlet are connect with the first gas outlet, and the first moisture trap can remove the moisture in biogas.
Desulfurizing tower, desulfurizing tower lower end is equipped with outlet valve and third air inlet upper end is equipped with third gas outlet, third air inlet It is connect with the second gas outlet, desulfurizing tower can remove the hydrogen sulfide in biogas.
Second moisture trap, the second moisture trap upper end are equipped with the 4th air inlet and the 4th gas outlet lower end equipped with the Two drain valves, the 4th air inlet are connect with third gas outlet, and the 4th gas outlet is connect with biogas generator, the second moisture trap It can remove the condensed water formed in the process to the cold after biogas desulfurization.
In some embodiments, water sealed tank side is equipped with the liquidometer for observing water quantity.From there through the liquidometer Can be convenient for SEA LEVEL VARIATION in observation tank, structure is simply easy to use.
In some embodiments, one end that air inlet pipe is located at accommodating chamber is equipped with up-small and down-big flare openings.Thus Biogas can be made to come into full contact with clear water in water sealed tank, and then improve the cleaning efficiency to biogas.
In some embodiments, the first moisture trap and the second moisture trap inside two sides are equipped with shutter gear Plate is equipped with metal mesh between louver type baffle.Since flow direction is varied multiple times in gas in separator, the water droplet of suspension has Biggish quality and inertia.Therefore steam can be accumulated on baffle when encountering baffle flows direction and changing and be agglomerated, to fall on The bottom of first moisture trap and the second moisture trap is flowed out by the first drain valve and the second drain valve.
In some embodiments, metal mesh is the metal mesh that aperture is not more than 0.15mm.Thus steam separation can be improved Efficiency.
In some embodiments, it is provided with the packing layer for accommodating desulfurizing agent in desulfurizing tower, desulfurizing tower is equipped with pair Should packing layer feed inlet and discharge port, be equipped with for making desulfurizer regeneration again at third air inlet and third gas outlet Raw ventilation diffusion valve.Desulfurizing tower third air inlet and third gas outlet at setting regeneration ventilation diffusion valve, desulfurizing agent again When raw, regeneration ventilation diffusion valve is opened, air desulfurizing tower tower will be squeezed into air pump with air pump, and kept in air speed in 20-40km/ H, and every 2 clocks, alternate change airintake direction.By the regeneration to desulfurizing agent, reduce the operating cost of biogas desulfurization, With certain economic value.
In some embodiments, desulfurizing agent is iron oxide, and desulfurizing tower can be by the iron oxide by the hydrogen sulfide in biogas Become ironic sulfide thus by the removal of sulphur in biogas.
In some embodiments, gas flowmeter, gas stream are additionally provided between the 4th gas outlet and biogas generator Amount is calculated as corrosion-resistant gas flowmeter.It is provided with gas flowmeter before the admission line into biogas generator, can measure every Secondary biogas generator runs the methane quantity used, by the comparison of data can be natural pond in conjunction with the generated energy of biogas generator Desulfurization, dehydration influence of the effect to biogas generator reference frame is provided.
The utility model has the following beneficial effects: the device of biogas desulfurization dehydration is provided with the first gas before and after desulfurizing tower Separator and the second moisture trap.Biogas after water sealed tank purifies into water saturation is contained before desulfurizing tower, by moisture trap The moisture in biogas is down to optimum moisture content required for desulfurizing agent afterwards, so that the activity for improving desulfurizing agent improves its desulfurization effect Fruit.Biogas goes out after desulfurizing tower forms condensed water since biogas temperature increases vapor contained therein to the cold, passes through the second gas Separator removes water it again, reduces the risk of blocking pipeline and valve, ensure that the normal operation of biogas generator.Cause The device of this biogas desulfurization dehydration can efficiently remove the impurity such as steam, hydrogen sulfide in biogas, ensure marsh gas power generation Effective operation of machine reduces maintenance and the cost of upkeep of biogas generator, has high treating effect, process conditions letter mono-, di- It is secondary pollution less, high financial profit the advantages that, suitable for the biogas desulfurization dehydration of Large-scale pig farm, realize the resource of biogas Change and utilizes.
Detailed description of the invention
Fig. 1 is a kind of a kind of overall structure signal of device for biogas desulfurization dehydration of embodiment of the utility model Figure;
Fig. 2 is a kind of structural schematic diagram of the water sealed tank of the device for biogas desulfurization dehydration shown in Fig. 1;
Fig. 3 is a kind of structural schematic diagram of first moisture trap of the device for biogas desulfurization dehydration shown in Fig. 1;
Fig. 4 is a kind of structural schematic diagram of the desulfurizing tower of the device for biogas desulfurization dehydration shown in Fig. 1.
Specific embodiment
1-4 is described in further detail the utility model with reference to the accompanying drawing.
As shown in Figure 1, a kind of device for biogas desulfurization dehydration, including
Water sealed tank 1, as shown in Fig. 2, being equipped with the accommodating chamber 1-6 for accommodating water in water sealed tank 1,1 upper end of water sealed tank is equipped with Water inlet 1-4, the first air inlet for air inlet pipe 1-1 insertion and the first gas outlet 1-2 for biogas outflow, air inlet pipe The one end 1-1 connection methane-generating pit other end protrudes into accommodating chamber 1-6, and 1 lower end of water sealed tank is equipped with water outlet 1-5, and water sealed tank 1 can be with The foam and dirt that cleaning biogas is taken out of from black film methane-generating pit, and cooling effect can be played to medium and high temperature biogas, in the device In also act as check valve action and prevent from being tempered.And water sealed tank 1 is using clear water, has that cost is relatively low, is easily changed and grasps Make the advantages that facilitating, suitable for the pretreatment before the biogas desulfurization of pig farm.
First moisture trap 2, as shown in figure 3,2 upper end of the first moisture trap is equipped with the second air inlet 2-1 and second The gas outlet lower end 2-2 is equipped with the first drain valve 2-5, and the second air inlet 2-1 is connect with the first gas outlet 1-2, the first gas-water separation Device 2 can remove the moisture in biogas.Moisture after the first moisture trap 2 in biogas is down to required for desulfurizing agent most preferably Water content, so that the activity for improving desulfurizing agent improves its desulfurization effect.
Desulfurizing tower 3, as shown in figure 4,3 lower end of desulfurizing tower, which is equipped with outlet valve 3-6 and the upper end third air inlet 3-2, is equipped with the Three gas outlet 3-3, third air inlet 3-2 are connect with the second gas outlet 2-2, and desulfurizing tower 3 can remove the hydrogen sulfide in biogas.It is de- Sulphur tower 3 usually setting 2 or more, can be with serial or parallel connection or series-parallel combination.
Second moisture trap 5, in the present embodiment the second moisture trap 5 and 2 structure phase of the first moisture trap Together, 5 upper end of the second moisture trap is equipped with the 4th air inlet and the 4th gas outlet lower end is equipped with the second drain valve, the 4th air inlet It is connect with third gas outlet 3-3, the 4th gas outlet is connect with biogas generator, and the second moisture trap 5 can remove biogas desulfurization The condensed water formed in the process to the cold afterwards.
As shown in Figure 1, the device of biogas desulfurization dehydration is provided with 2 He of the first moisture trap before and after desulfurizing tower 3 Second moisture trap 5.Biogas is into containing water saturation after the purification of water sealed tank 1 before desulfurizing tower 3, after the first moisture trap 2 Moisture in biogas is down to optimum moisture content required for desulfurizing agent, so that the activity for improving desulfurizing agent improves its desulfurization effect. Biogas goes out after desulfurizing tower 3 forms condensed water since biogas temperature increases vapor contained therein to the cold, passes through the second air water Separator 5 removes water it again, reduces the risk of blocking pipeline and valve, ensure that the normal operation of biogas generator.Cause The device of this biogas desulfurization dehydration can efficiently remove the impurity such as steam, hydrogen sulfide in biogas, ensure marsh gas power generation Effective operation of machine reduces maintenance and the cost of upkeep of biogas generator, has high treating effect, process conditions letter mono-, di- It is secondary pollution less, high financial profit the advantages that, suitable for the biogas desulfurization dehydration of Large-scale pig farm, realize the resource of biogas Change and utilizes.
In the present embodiment, as shown in Fig. 2, 1 side of water sealed tank is equipped with the liquidometer 1-3 for observing water quantity.Thus lead to Crossing liquidometer 1-3 can be easy to use convenient for SEA LEVEL VARIATION in observation tank.
In the present embodiment, as shown in Fig. 2, one end that air inlet pipe 1-1 is located at accommodating chamber 1-6 is equipped with up-small and down-big loudspeaker Shaped opening.Biogas can thus come into full contact with clear water in water sealed tank 1, and then improves the cleaning efficiency to biogas.
In the present embodiment, as shown in figure 3, the first moisture trap 2 is all provided with 5 inside two sides of the second moisture trap There is louver type baffle 2-3, is equipped with metal mesh 2-4 between louver type baffle 2-3.Since flowing is varied multiple times in gas in separator The water droplet in direction, suspension has biggish quality and inertia.Therefore steam can be gathered when encountering the flow direction baffle 2-3 and changing It is agglomerated on baffle 2-3, to fall on the bottom of the first moisture trap 2 and the second moisture trap 5, passes through the first drain valve 2-5 and the outflow of the second drain valve.
In the present embodiment, metal mesh 2-4 is the metal mesh 2-4 that aperture is not more than 0.15mm.Thus steam point can be improved From efficiency.
In the present embodiment, as shown in figure 4, being provided with the packing layer 3-1 for accommodating desulfurizing agent, desulfurization in desulfurizing tower 3 Tower 3 is equipped at the feed inlet 3-4 and discharge port 3-5 of corresponding packing layer 3-1, third air inlet 3-2 and third gas outlet 3-3 It is equipped with the regeneration ventilation diffusion valve 3-7 for making desulfurizer regeneration.In the third air inlet 3-2 and third outlet of desulfurizing tower 3 Setting regeneration ventilation diffusion valve 3-7 at mouth 3-3 is opened in desulfurizer regeneration and is regenerated ventilation diffusion valve 3-7, will be used with air pump Air is squeezed into 3 tower of desulfurizing tower by air pump, is kept in air speed in 20-40km/h, and every 2 clocks, alternate change airintake direction.It is logical The regeneration to desulfurizing agent is crossed, the operating cost of biogas desulfurization is reduced, there is certain economic value.
In the present embodiment, desulfurizing agent is iron oxide, and desulfurizing tower 3 can be become the hydrogen sulfide in biogas by the iron oxide Ironic sulfide is thus by the removal of sulphur in biogas.
In the present embodiment, as shown in Figure 1, being additionally provided with gas flowmeter 4 between the 4th gas outlet and biogas generator, Gas flowmeter 4 is corrosion-resistant gas flowmeter 4.Gas flowmeter is provided with before the road air inlet pipe 1-1 into biogas generator 4, the methane quantity that each biogas generator operation uses can be measured and pass through data in conjunction with the generated energy of biogas generator Comparison can provide reference frame for influence of the effect to biogas generator of biogas desulfurization, dehydration.
The workflow of the device being dehydrated for biogas desulfurization are as follows:
A removal of impurities, biogas is flowed into water sealed tank 1 by pipeline from black film methane-generating pit, by the water in water sealed tank 1 by biogas The foam and dirt of middle carrying are removed.
B is dehydrated for the first time: the biogas after flowing out out of water sealed tank 1 is imported the first moisture trap 2, the first gas-water separation Device 2 carries out first time dehydration to biogas.The moisture in biogas is removed, subsequent processing pressure is reduced.
C desulfurization: desulfurizing tower 3 will be imported by dewatered biogas for the first time, the filler for sulphur removal is equipped in desulfurizing tower 3 Desulfurizing agent is equipped in layer 3-1, packing layer 3-1.Desulfurizing agent is iron oxide in the present embodiment, and biogas is from bottom to top from packing layer 3- 1 passes through, and activated ferric oxide is contacted with the H2S in biogas generates Fe2S3, and then removes the sulphur in biogas.
Second of dehydration of D: the biogas flowed out in desulfurizing tower 3 is imported into the second moisture trap 5, the second moisture trap 5 Second is carried out to biogas to be dehydrated.Remove biogas desulfurization after to the cold during formed condensed water, avoid moisture blocking pipeline and Valve.
E metering: biogas generator is sent into after the biogas that the second moisture trap 5 flows out is measured by gas flowmeter 4.
Above-described is only some embodiments of the utility model, for those of ordinary skill in the art, Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to practical Novel protection scope.

Claims (8)

1. a kind of device for biogas desulfurization dehydration, which is characterized in that including
Water sealed tank, is equipped with the accommodating chamber for accommodating water in the water sealed tank, the water sealed tank upper end be equipped with water inlet, for into First air inlet of tracheae insertion and the first gas outlet flowed out for biogas, air inlet pipe one end connection methane-generating pit are another End is protruded into the accommodating chamber, and the water sealed tank lower end is equipped with water outlet, and the water sealed tank can remove the foam carried in biogas And dirt;
First moisture trap, first moisture trap upper end are equipped with the second air inlet and the second gas outlet lower end equipped with the One drain valve, second air inlet are connect with first gas outlet, and first moisture trap can remove in biogas Moisture;
Desulfurizing tower, the desulfurizing tower lower end are equipped with outlet valve and third air inlet upper end and are equipped with third gas outlet, the third into Port is connect with second gas outlet, and the desulfurizing tower can remove the hydrogen sulfide in biogas;
Second moisture trap, second moisture trap upper end are equipped with the 4th air inlet and the 4th gas outlet lower end equipped with the Two drain valves, the 4th air inlet are connect with third gas outlet, and the 4th gas outlet is connect with biogas generator, and described Two moisture traps can remove the condensed water formed in the process to the cold after biogas desulfurization.
2. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that the water sealed tank side Equipped with the liquidometer for observing water quantity.
3. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that the air inlet pipe is located at One end of accommodating chamber is equipped with up-small and down-big flare openings.
4. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that first air water point It is equipped with louver type baffle from two sides inside device and the second moisture trap, is equipped with metal mesh between the louver type baffle.
5. a kind of device for biogas desulfurization dehydration according to claim 4, which is characterized in that the metal mesh is hole Diameter is not more than the metal mesh of 0.15mm.
6. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that set in the desulfurizing tower It is equipped with the packing layer for accommodating desulfurizing agent, the desulfurizing tower is equipped with the feed inlet and discharge port of the corresponding packing layer, described The regeneration ventilation diffusion valve for making desulfurizer regeneration is equipped at third air inlet and third gas outlet.
7. a kind of device for biogas desulfurization dehydration according to claim 6, which is characterized in that the desulfurizing agent is oxygen Change iron, the hydrogen sulfide in biogas can be become ironic sulfide by the iron oxide to go the sulphur in biogas by the desulfurizing tower It removes.
8. a kind of device for biogas desulfurization dehydration according to claim 1, which is characterized in that the 4th gas outlet Gas flowmeter is additionally provided between biogas generator, the gas flow is calculated as corrosion-resistant gas flowmeter.
CN201821811893.8U 2018-11-05 2018-11-05 A kind of device for biogas desulfurization dehydration Active CN209338474U (en)

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CN201821811893.8U CN209338474U (en) 2018-11-05 2018-11-05 A kind of device for biogas desulfurization dehydration

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