CN106675681B

CN106675681B - A kind of vehicle-mounted methane compression separation liquefaction can packing machine

Info

Publication number: CN106675681B
Application number: CN201710009125.4A
Authority: CN
Inventors: 张永北; 张爱诚; 罗靖
Original assignee: HAINAN BEIOU BIOENERGY DEVELOPMENT Co Ltd
Current assignee: HAINAN BEIOU BIOENERGY DEVELOPMENT Co Ltd
Priority date: 2017-01-06
Filing date: 2017-01-06
Publication date: 2019-07-12
Anticipated expiration: 2037-01-06
Also published as: CN106675681A

Abstract

The present invention is a kind of vehicle-mounted methane compression separation liquefaction can packing machine, it include: carrier loader, can packing machine unit, the can packing machine units' installation is on the carrier loader, the can packing machine unit includes desulfurizing tower, decarburization water washing tank, drain sump, biogas liquefied tank, high pressure water-injection pump, is sequentially connected in series to form main gas circuit by pipeline；The can packing machine unit further includes compressor, and the compressor is four or Pyatyi compressor, and first group of compressor is connected between the desulfurizing tower, decarburization water washing tank, by Marsh gas compression to 8MPa, obtains dry biological flue gas and liquefied carbon dioxide；Second group is connected between the drain sump, biogas liquefied tank, finally mixed liquefied with liquefaction auxiliary agent in liquefied pot by the 25MPa of resulting dried biological flue gas compression through two stages of compression, generates liquefaction biological flue gas；The present invention is solved in the purification, separation, purification, canned, realization device miniaturization and key technology difficulty that can be vehicle-mounted for completing biogas.

Description

A kind of vehicle-mounted methane compression separation liquefaction can packing machine

Technical field

The present invention relates to that can drive to be moved to the biogas place of production, on the spot by marsh gas purifying, compression, separation, liquefaction, canned, The device, in particular to a kind of vehicle-mounted methane compression separation liquefaction can packing machine of output liquid carbon dioxide and liquefied methane.

Background technique

The current biogas production in China is existing compared with solid foundation.Production and use of marsh gas popularity rate is higher, and large-sized biogas exploitation is also accumulated Certain basis is tired out.It makes full use of the huge agriculture and forestry organic waste material of stock number to be converted into biogas, develops biological flue gas industry, it can be straight It connects for motor vehicle fuel, technology maturation is easy to operate, and cost is relatively low, and combustion heat value is higher, and effect is preferable, is hopeful extensive Development.The biological flue gas of marsh gas purifying purification, main component is methane, identical with natural gas, is used for motor vehicle fuel principle Completely the same with natural gas, technology is quite mature, universal in such as Sweden, some countries in Northern Europe in the world.China's natural gas vapour Vehicle popularizes in many areas, has established good basis for biological flue gas driving.

But agricultural straw refuse converts automobile-used biological flue gas, it equally also will be in face of agriculture and forestry organic waste material resource height point Scale brought by dissipating converts serial problem.Extensive centralized processing agriculture and forestry organic waste material, the large-scale intensive plant produced of development, It excessively concentrated there are resource high degree of dispersion, season, store up fortune difficulty etc. and cause the profitability of industry weak, becoming can not sustainable development The limitation of exhibition.Therefore, people are inquiring into integrated network type large-sized biogas engineering (CN101724659A), and transformation is large-scale intensive Mode, to disperse the biogas fermentation device on a fairly large scale (CN105087655A) for the treatment of in situ, on the spot by agriculture and forestry organic waste material turn Change biogas, is collected using pipe network system, methane conveying to processing stand, then be equipped with vehicle-mounted methane processing unit (plant) (CN101949633A), it realizes that biogas processes mobile operational process, biogas residue returning to the field on the spot, is thrown to significantly save biogas project facility Enter, reduce biogas project operation cost, improves biogas production efficiency.

In this set large-sized biogas engineering system, the vehicle-mounted methane purification of core technology, liquefaction pot-type equipment need It configures deep freeze refrigeration plant and its heat-insulation and heat-preservation equipment volume is big, cost is high.So needing a kind of vehicle-mounted methane compression separation liquefaction Can packing machine, come solve complete the purification of biogas, separation, purification, it is canned on the basis of, realize device miniaturization, low cost simultaneously Technical problem that can be vehicle-mounted.

Summary of the invention

The purpose of the present invention is to provide a kind of vehicle-mounted methanes to compress separation liquefaction can packing machine, to solve complete biogas Purification, separation, purification, it is canned on the basis of, realize device miniaturization and can be vehicle-mounted technical problem.

The following technical solution is employed by the present invention:

A kind of vehicle-mounted methane compression separation liquefaction can packing machine, comprising: carrier loader (1), can packing machine unit (10), the tank Installation unit (10) is mounted on the platform of the carrier loader (1), it is characterised in that: the can packing machine unit (10) includes desulfurization Tower (3), washing decarbonizing tank (4), drain sump (5), biogas liquefied tank (6), are followed in series to form by pipeline；

The can packing machine unit (10) further includes compressor (2), and the compressor (2) is divided into two groups, and first group is connected on Between the desulfurizing tower (3), washing decarbonizing tank (4), second group is connected between the drain sump (5), biogas liquefied tank (6).

The compressor (2) is Pyatyi compressor, is first group of compressor, four Pyatyis after the series connection of one or two three stage compressions It is second group of compressor after compression series connection；By first group of compressed desulfurization biogas pressure of compressor (2) Power to 7-8MPa enter the washing decarbonizing tank (4)；By second group of compressed dehydration methane gas of compressor (2) Pressure to 25MPa enter the biogas liquefied tank (6).

The desulfurizing tower (3), washing decarbonizing tank (4) are arranged side by side in front of the carrier loader (1) platform and are fixed on branch On frame, the horizontal biogas liquefied tank (6), the drain sump (5) is respectively two and front and back is arranged in parallel in the delivery Vehicle (1) rear, two drain sumps (5) are suspended from setting right above the biogas liquefied tank (6) by bracket (100), described Compressor (2) is placed between the desulfurizing tower (3) and biogas liquefied tank (6)；

The external biogas source of air inlet (31) on desulfurizing tower (3) top, its underpart gas outlet (32) pass through desulfurization biogas Pipeline (8) connects the inlet end of first group of compressor (2), the outlet side of first group of compressor (2) and the washing The air inlet (44) of decarbonizing tank (4) lower part passes through first group of compressed gas pipeline one (91) connection, washing decarbonizing tank (4) top Exhaust outlet (41) is connected in parallel the dehydration canister incoming gas of two described drain sump (5) one end by first group of compressed gas pipeline two (92) Mouth (52) passes through first group of compressed gas pipeline three after the drain sump gas outlet (51) of two drain sump (5) other ends is in parallel (93) inlet end of second group of compressor (2) is connected, the outlet side of second group of compressor (2) passes through second group of compression Feed channel (101) connects the high pressure gas pipeline entrance (65) at the top of the biogas liquefied tank (6).

The desulfurizing tower (3) is vertical closed tank, built-in several diaphragm plates, and adjacent diaphragm plate is staggered notch, And slightly have a down dip to notch end, desulfurizing agent is filled in tower body, and be provided with air inlet (31), gas outlet (32), feed inlet (33), Discharge port (34), the external biogas source of air inlet (31) of the desulfurizing tower, the gas outlet (32) connect first group of compression Machine (2) inlet end；The air inlet (31), gas outlet (32) are that long tube grafting forms, and the feed inlet (33) is located at tank body top Portion is vertically arranged, and horizontal grafting and is connected to the air inlet (31), discharge port (34) position on feed inlet (33) side wall It is vertically arranged in tank base, horizontal grafting is connected to the gas outlet (32) on discharge port (34) side wall.

The washing decarbonizing tank (4) is vertical partition formula water washing tank, is closed tank, inner vertical is provided with midfeather (49) former and later two halfth areas will be divided into tank body, midfeather (49) side connect solid with washing decarbonizing tank (4) inner wall Surely it shuts, there are gap (410) with washing decarbonizing tank (4) inner wall for the other side；Along upper in washing decarbonizing tank (4) tank body Lower direction is horizontally disposed multiple washing decarbonizing tank diaphragm plates (48), and region separates two halves by midfeather between adjacent diaphragm plate, Each washing decarbonizing tank diaphragm plate (48) is provided with opening, neighbouring washing decarbonizing tank diaphragm plate opening point It is placed in halfth area of front and back, and the opening is set to the midfeather (49) and shuts end；Washing decarbonizing tank (4) bottom is provided with It washes decarbonizing tank leakage fluid dram (42), top is provided with washing decarbonizing tank exhaust outlet (41), is provided with washing decarbonizing tank above side wall Inlet (43), the external pure water water source of washing decarbonizing tank inlet (43), tank wall lower section are provided with washing decarburization Canister incoming gas mouth (44), washing decarbonizing tank air inlet (44) is the long tube for being horizontally inserted into tank body, the inner end head closing of insertion, It is provided on inserting paragraph long tube ventilating microhole (47), and compressor (2) outlet side described in external first group.

The drain sump (5) is horizontal closed tank, and internal longitudinal direction is vertically arranged with vertical clapboard (58) will be in tank body Be divided into former and later two halfth areas, be connected and fixed at the top of the vertical clapboard (58) with inner tank wall, bottom and inner tank wall there are gap, Dehydrated adsorbent is filled inside the drain sump (5) and is parallel to each other in left-right direction and is vertically arranged with multiple drain sump tabulas Plate (57), region separates two halves by midfeather between adjacent diaphragm plate, is respectively provided at the top of each drain sump diaphragm plate (57) There is an opening, the opening of the adjacent drain sump diaphragm plate (57) is placed in former and later two halfth areas, drain sump (5) left and right ends It is respectively arranged with drain sump air inlet (52), drain sump gas outlet (51), the drain sump air inlet (52) connects the washing Decarbonizing tank exhaust outlet (41), the drain sump gas outlet (51) connect second group of compressor inlet end of the compressor (2), top Portion is provided with drain sump feed inlet (53), bottom is provided with drain sump discharge port (54)；The drain sump (5) is two of parallel connection It is used alternatingly, the drain sump feed inlet (53), drain sump discharging is provided between the adjacent drain sump diaphragm plate (57) Mouth (54), the adjacent drain sump feed inlet (53) are placed in above the drain sump and separate halfth area of front and back by diaphragm plate (58) Laid out in parallel.

The biogas liquefied tank (6) is vertical closed tank, and underfill has liquefaction auxiliary agent (67), the biogas in tank body Liquefied pot (6) bottom is provided with liquid material inlet and outlet (64), and top is provided with high pressure gas pipeline entrance (65), the high pressure gas pipeline Entrance (65) is built-in high pressure gas pipeline, the one section of single tube and divided by its bottom that the high pressure gas pipeline is arranged by top vertical The high pressure gas pipeline branch pipe (651) that left and right two-way is vertically arranged out is constituted, and the bottom end of the high pressure gas pipeline branch pipe is immersed in described In liquefaction auxiliary agent (67) and it is connected to the horizontal high pressure appendix branch pipe (652) being laterally arranged, the horizontal high pressure appendix branch pipe (652) high pressure micropore is provided on, the liquid material inlet and outlet (64) are vertically arranged liquid in-out expects pipe (641), the disengaging liquid material Pipe (641) top is extended down to the top in the biogas liquefied tank (6), and liquid in-out expects pipe top is provided with high pressure micropore, institute State the outlet side that high pressure gas pipeline entrance (65) connect second group of compressor of the compressor (2), the biogas liquefied tank (6) Top is provided with safety valve, pressure gauge, and the biogas liquefied tank (6) is that two parallel connections are used alternatingly, the biogas liquefied tank (6) It is used alternatingly for two parallel connections.

The liquefaction auxiliary agent is the above alkane of five carbon or alkene liquefaction auxiliary agent, and volume accounts for the molten long-pending 1/5-2/5 of tank body, described The auxiliary agent that liquefies is 2,2 dimethylpropanes and isomery dodecane or one of 2- methybutane and the mixture of isomery dodecane, 2,2 dimethylpropanes and isomery dodecane weight fraction ratio are 5~10:5~0 in the mixture, in the mixture 2- methybutane and isomery dodecane weight fraction ratio are 5~10:5~0.

Each step enters as follows, and following steps carry out at normal temperature:

Step 1: biogas to be processed is passed through in desulfurizing tower (3) by air inlet (31), is filled out in the desulfurizing tower (3) The desulfurizing agent filled carries out reacting absorption desulfurization with biogas to be processed, and biogas is desulfurized purification；

Step 2: the biogas after step 1 desulfurization is discharged by the gas outlet (32) of the desulfurizing tower and is passed through compressor First group of compressor, gas pressure is 8.0MPa after compression, and biogas is pressurized after first group of compression；

Step 3: biogas pressurized in step 2 is passed through the washing decarburization by washing decarbonizing tank air inlet (44) In tank (4), pure water, biogas and pure water are passed through in the washing decarbonizing tank by the washing decarbonizing tank inlet (43) (4) aqueous solution of the carbon dioxide obtained after interior hybrid reaction, with pure water hybrid reaction passes through the washing decarbonizing tank drain Mouth (42) discharge, the biogas after decarburization separates are that biological flue gas passes through washing decarbonizing tank exhaust outlet (41) discharge；

Step 4: the biological flue gas being discharged after decarburization in step 3 is passed through by the drain sump air inlet (52) described In drain sump (5), adsorption dewatering is carried out with the dehydrated adsorbent filled in it and is reacted, the dry biology combustion obtained after dehydration Gas is discharged by the drain sump gas outlet (51)；

Step 5: the biological flue gas that step 4 is discharged further is pressurizeed by second group of compressor of the compressor, Gas pressure is 25MPa after compression, and biological flue gas is pressurizeed after second group of compression；

Step 6: the drying biological flue gas after pressurizeing in step 5 is passed through into the high pressure gas pipeline entrance (65) again and is passed through In the biogas liquefied tank (6), dry biological flue gas with liquefy after auxiliary agent (67) mixed, biological flue gas is liquefied storage.

The liquefaction auxiliary agent is the above alkane of five carbon or alkene liquefaction auxiliary agent, and volume accounts for the molten long-pending 1/5-2/5 of tank body, described The auxiliary agent that liquefies is 2,2 dimethylpropanes and isomery dodecane or one of 2- methybutane and the mixture of isomery dodecane, The weight fraction ratio of 2,2 dimethylpropanes and isomery dodecane or 2- methybutane and isomery dodecane mixture is 5~10: 5~0.

Advantages of the present invention is as follows:

1. vehicle-mounted methane compression separation liquefaction can packing machine, the purification of biogas, separation, purification, canned is realized, and adopt With the method compressed and liquefied, configuration deep freeze refrigeration plant and its heat-insulation and heat-preservation equipment are eliminated.Realize the miniaturization of equipment and can It is vehicle-mounted.Have flexible work capacity, small in size, low cost, Highgrade integration, it is high-efficient the advantages that.

2. biological flue gas, carbon dioxide compression liquefaction will be purified by realizing using liquefaction auxiliary agent method under normal temperature condition, realize Biological flue gas liquefaction it is canned, obtained liquiefied product be carbon dioxide-water and methane-liquefaction agent mixture, it is bigger than cryogenic liquefying Amplitude reduces energy consumption.

3. extracting by surge tank, what is finally utilized remains as pure carbon dioxide and methane gas.Subtract through surge tank After pressure is extracted, water, liquefaction auxiliary agent are still liquid, and repeatable recycling.And methane, carbon dioxide after surge tank extraction, The application requirement of its higher standard is not influenced, such as automobile-used biological flue gas requirement.

4. equipment is run on the spot with Che Yidong, make biogas processing can be on wide field, any place fortune that can be reached Row, so that automobile-used biological flue gas industry development, avoids the serial problem such as the collection of agricultural straw refuse, transport, processing, do not transported The limitation of defeated radius greatly extends the utilization scope of stalk.

5. vehicle-mounted type equipment avoids the huge freight volume of raw material input and waste residue output, need to only transport finished product, conevying efficiency It is high；So as to avoid straw transportation low efficiency, the serial problems such as difficulty is big are collected, transportation cost is considerably reduced, are improved Industrial benefit.

6. avoiding long-distance transport raw material and waste residue, fleet's investment can be saved, reduce the freight cost.These reduce the excellent of cost Point, so that biogas poor benefit industry becomes the viable industries that can be got a profit.

Detailed description of the invention:

Fig. 1 is overall flow schematic diagram of the invention；

Fig. 2 is overlooking structure diagram of the invention；

Fig. 3 is schematic view of the front view of the invention；

Fig. 4 is inventive desulfurization tower schematic diagram of internal structure；

Fig. 5 is that decarburization water washing tank internal junction of the present invention sets up schematic diagram；

Fig. 6 is diaphragm plate opening arrangement schematic diagram inside decarburization water washing tank of the present invention；

Fig. 7 is inside decarburization water washing tank of the present invention based on the adjacent diaphragm plate opening arrangement schematic diagram of Fig. 5；

Fig. 8 is drain sump schematic diagram of internal structure of the present invention；

Fig. 9 is drain sump diaphragm plate of the present invention opening arrangement schematic diagram；

Figure 10 is inside drain sump of the present invention based on the adjacent drain sump diaphragm plate opening arrangement schematic diagram of Fig. 8；

Figure 11 is vertical biogas liquefied tank schematic diagram of internal structure of the invention；

Figure 12 is horizontal biogas liquefied tank schematic diagram of internal structure of the invention；

Figure 13 is surge tank schematic diagram of internal structure of the invention；

Specific embodiment

The following further describes the specific embodiments of the present invention with reference to the drawings.

Following embodiment is only examples made by the present invention to clearly illustrate, and not to the limit of embodiments of the present invention It is fixed.For those of ordinary skill in the art, it is various forms of that other can also be made on the basis of the following description Variation changes, and these belong to obvious changes or variations that spirit of that invention is drawn still in protection of the invention Among range.

A kind of vehicle-mounted methane compression separation liquefaction can packing machine, comprising: carrier loader 1, can packing machine unit 10, the can packing machine Unit 10 is mounted on the platform of the carrier loader 1, and the can packing machine unit 10 includes desulfurizing tower 3, washing decarbonizing tank 4, dehydration Tank 5, biogas liquefied tank 6, are followed in series to form by pipeline；

The can packing machine unit 10 further includes compressor 2, and it is two groups that the compressor 2, which is divided to, and first group is connected on described take off Between sulphur tower 3, washing decarbonizing tank 4, second group is connected between the drain sump 5, biogas liquefied tank 6.

The compressor 2 is Pyatyi compressor, is first group of compressor, four Pyatyi pressures after the series connection of one or two three stage compressions It is second group of compressor after contracting series connection；Extremely by the compressed desulfurization biogas pressure of first group of compressor 2 7-8MPa enters the washing decarbonizing tank 4；Extremely by the compressed dehydration methane gas pressure of second group of compressor 2 25MPa enters the biogas liquefied tank 6.

The desulfurizing tower 3, washing decarbonizing tank 4 are arranged side by side in front of 1 platform of carrier loader and are fixed on bracket, crouch The biogas liquefied tank 6, the drain sump 5 of formula are respectively two and front and back is arranged in parallel in 1 rear of carrier loader, and two The drain sump 5 is suspended from right above the biogas liquefied tank 6 by bracket 100 to be arranged, and the compressor 2 is placed in the desulfurizing tower Between 3 and biogas liquefied tank 6；

The external biogas source of air inlet 31 on 3 top of desulfurizing tower, its underpart gas outlet 32 are connected by desulfurization biogas pipeline 8 Connect the inlet end of first group of compressor 2, the outlet side of first group of compressor 2 and washing 4 lower part of decarbonizing tank Air inlet 44 is connected by first group of compressed gas pipeline 1, and 4 top vent 41 of washing decarbonizing tank passes through first group of pressure Contracting feed channel 2 92 is connected in parallel the drain sump air inlet 52 of two described 5 one end of drain sump, two 5 other ends of drain sump 51 parallel connection of drain sump gas outlet after the inlet end of second group of compressor 2 is connected by first group of compressed gas pipeline 3 93, The outlet side of second group of compressor 2 connects the high pressure at 6 top of biogas liquefied tank by second group of compressed gas pipeline 101 Gas transmission tube inlet 65.

The desulfurizing tower 3 is vertical closed tank, built-in several diaphragm plates, and adjacent diaphragm plate is staggered notch, and It slightly has a down dip to notch end, desulfurizing agent is filled in tower body, and be provided with air inlet 31, gas outlet 32, feed inlet 33, discharge port 34, the external biogas source of air inlet 31 of the desulfurizing tower, the gas outlet 32 connects first group of compressor, 2 inlet end；Institute State air inlet 31, gas outlet 32 be long tube grafting form, the feed inlet 33 is vertically arranged positioned at top of the tank, the feed inlet Horizontal grafting and it is connected to the air inlet 31 on 33 side walls, the discharge port 34 is vertically arranged positioned at tank base, the discharging Horizontal grafting is connected to the gas outlet 32 on 34 side walls of mouth.

The washing decarbonizing tank 4 is vertical partition formula water washing tank, is closed tank, inner vertical is provided with midfeather 49 Former and later two halfth areas will be divided into tank body, 49 side of midfeather is connected and fixed with 4 inner wall of washing decarbonizing tank and shuts, separately There are gaps 410 with 4 inner wall of washing decarbonizing tank for side；It is horizontally disposed with along the vertical direction in 4 tank body of washing decarbonizing tank There are multiple washing decarbonizing tank diaphragm plates 48, region separates two halves, each washing decarburization by midfeather between adjacent diaphragm plate Tank diaphragm plate 48 is provided with opening, and neighbouring washing decarbonizing tank diaphragm plate opening is placed in halfth area of front and back, and institute It states opening and is set to the midfeather 49 and shut end；4 bottom of washing decarbonizing tank is provided with washing decarbonizing tank leakage fluid dram 42, top Portion is provided with washing decarbonizing tank exhaust outlet 41, is provided with washing decarbonizing tank inlet 43 above side wall, the washing decarbonizing tank into The external pure water water source of liquid mouth 43, tank wall lower section are provided with washing decarbonizing tank air inlet 44, the washing decarbonizing tank air inlet Mouth 44 is the long tube for being horizontally inserted into tank body, the inner end head closing of insertion, is provided with ventilating microhole 47 on inserting paragraph long tube, and outer 2 outlet side of compressor described in connecing first group.

The drain sump 5 is horizontal closed tank, and internal longitudinal direction, which is vertically arranged with vertical clapboard 58, to be divided into tank body Former and later two halfth areas, 58 top of vertical clapboard are connected and fixed with inner tank wall, and there are gaps for bottom and inner tank wall, described de- Dehydrated adsorbent is filled inside water pot 5 and is parallel to each other in left-right direction and is vertically arranged with multiple drain sump diaphragm plates 57, phase Region separates two halves by midfeather between adjacent diaphragm plate, is provided with opening at the top of each drain sump diaphragm plate 57, adjacent The opening of the drain sump diaphragm plate 57 is placed in former and later two halfth areas, and 5 left and right ends of drain sump are respectively arranged with dehydration Canister incoming gas mouth 52, drain sump gas outlet 51, the drain sump air inlet 52 connects the washing decarbonizing tank exhaust outlet 41, described de- Water pot gas outlet 51 connects second group of compressor inlet end of the compressor 2, and top is provided with drain sump feed inlet 53, bottom It is provided with drain sump discharge port 54；The drain sump 5 is two in parallel and is used alternatingly, the adjacent drain sump diaphragm plate 57 it Between be provided with the drain sump feed inlet 53, drain sump discharge port 54, the adjacent drain sump feed inlet 53 is placed in described Half area's laid out in parallel of front and back is separated above drain sump and by diaphragm plate 58.

The biogas liquefied tank 6 is vertical closed tank, and underfill has liquefaction auxiliary agent 67 in tank body, described biogas liquefied 6 bottom of tank is provided with liquid material inlet and outlet 64, and top is provided with high pressure gas pipeline entrance 65, and the high pressure gas pipeline entrance 65 is interior The high pressure gas pipeline set, one section of single tube that the high pressure gas pipeline is arranged by top vertical and separates left and right two-way by its bottom and erects The high pressure gas pipeline branch pipe 651 being directly arranged is constituted, and the bottom end of the high pressure gas pipeline branch pipe is immersed in the liquefaction auxiliary agent 67 simultaneously It is connected to the horizontal high pressure appendix branch pipe 652 being laterally arranged, it is micro- to be provided with high pressure on the horizontal high pressure appendix branch pipe 652 Hole, the liquid material inlet and outlet 64 are vertically arranged liquid in-out expects pipe 641, and 641 top of liquid in-out expects pipe is extended down to the methane liquid Change the top in tank 6, liquid in-out expects pipe top is provided with high pressure micropore, and the high pressure gas pipeline entrance 65 connects the pressure The outlet side of second group of compressor of contracting machine 2 is provided with safety valve, pressure gauge, the methane liquid at the top of the biogas liquefied tank 6 Changing tank 6 is that two parallel connections are used alternatingly, and the biogas liquefied tank 6 is that two parallel connections are used alternatingly.

Step 1: biogas to be processed is passed through in desulfurizing tower 3 by air inlet 31, that fills in the desulfurizing tower 3 is de- Sulphur agent carries out reacting absorption desulfurization with biogas to be processed, and biogas is desulfurized purification；

Step 2: the biogas after step 1 desulfurization is discharged by the gas outlet 32 of the desulfurizing tower and is passed through compressor First group of compressor, gas pressure is 8.0MPa after compression, and biogas is pressurized after first group of compression；

Step 3: biogas pressurized in step 2 is passed through the washing decarbonizing tank by washing decarbonizing tank air inlet 44 In 4, pure water is passed through by the washing decarbonizing tank inlet 43, biogas mixes in the washing decarbonizing tank 4 with pure water Reaction, the aqueous solution with the carbon dioxide obtained after pure water hybrid reaction are discharged by the washing decarbonizing tank leakage fluid dram 42, Biogas after decarburization separates is that biological flue gas is discharged by washing decarbonizing tank exhaust outlet 41；

Step 4: the biological flue gas being discharged after decarburization in step 3 is passed through described take off by the drain sump air inlet 52 In water pot 5, adsorption dewatering is carried out with the dehydrated adsorbent filled in it and is reacted, the drying biological flue gas obtained after dehydration is logical The drain sump gas outlet 51 is crossed to be discharged；

Step 6: the drying biological flue gas after pressurizeing in step 5 is passed through into the high pressure gas pipeline entrance 65 again and is passed through institute It states in biogas liquefied tank 6, after dry biological flue gas is mixed with the auxiliary agent 67 that liquefies, biological flue gas is liquefied storage.

As shown in figure 12 there are also a kind of biogas liquefied tank in bedroom, underfill has liquefaction auxiliary agent, the methane liquid in tank body Change pot bottom and be provided with liquid material inlet and outlet, high pressure gas pipeline entrance, the liquid material inlet and outlet are arranged to be built-in vertically in the natural pond Tracheae in gas liquefaction tank, top extends to the biogas liquefied tank top and is provided with high pressure micropore on tube body, described High pressure gas pipeline entrance includes vertical pipe section and horizontal pipe section, and the vertical pipe section is inserted into the biogas liquefied tank, and Its is top closed, and the inserting paragraph level of the vertical pipe section is connected to two horizontal pipe sections arranged in parallel, the water Flat tube section is immersed in the liquefaction auxiliary agent, and inner end is closed and is provided with high pressure micropore, the high pressure gas pipeline on its tube body Entrance connects the outlet side of second group of compression of the compressor；The biogas liquefied tank left and right ends are provided with safety valve, top Portion is provided with pressure gauge, and the biogas liquefied tank is that two parallel connections are used alternatingly.

Its technical solution and working principle:

The technical scheme is that compressing and liquefying method as core using auxiliary agent, absorption desulfurization, washing decarburization, absorption are integrated The technologies such as dehydration and high-pressure liquefaction are canned, establish vehicle apparatus, realize equipment mobile operational process in integrated networking biogas project, By marsh gas purifying, separation, liquefaction, canned.

1. compressing and liquefying technology using auxiliary agent, under normal temperature conditions, by the effect of biogas liquefied auxiliary agent, biogas slurry pressure is realized Contracting liquefaction is canned.

2. integrated adsorbent doctor treatment, washing carbon rejection processes, adsorbent evaporation, handle biogas, realize that biogas is net Change and separates.

3. reaching equipment vehicle-mountedization with the mobile mesh of vehicle by corresponding Marsh gas compression and pre-processing device general assembly in vehicular platform , realize marsh gas purifying, separation, liquefaction, canned mobile operational process.

" auxiliary agent compresses and liquefies method ", process flow is as shown in Figure 1.Its principle is to purify natural pond under normal temperature condition Gas methane can not liquefy under any pressure.But under the action of liquefying auxiliary agent, by pressurization, it can liquefy jointly with auxiliary agent. The suitable liquefaction auxiliary agent of selection, common liquefied liquid, at reduced pressure conditions, methane gas is separated with liquefaction auxiliary agent, and methane is rapid Switch to gas, and the auxiliary agent that liquefies is still liquid under smaller pressure even normal pressure.

In process above process, appointed condition and technical parameter used by links are as described below:

Step 1: absorption desulfurization

Including absorption desulfurization and desulfurizer regeneration.Desulfurizing agent is filled using desulfurizing tower, forms the equipment and object of desulfurization link Matter basis.For vehicle-mountedization for adapting to equipment, this project is shown in Fig. 3 using common desulfurizing tower form, several sides as built in digester Leaving certain gaps uncovered by the economic plan and the diaphragm plate having a down dip to notch side.The use process of desulfurizing tower: closing the discharge port of tower bottom, opens feed inlet, Desulfurizing agent is packed into from feed inlet, under the effect of gravity, sorbent particle successively slides downwards from top layer next door, successively fills up tower It is interior, close feed inlet.Then input biogas from the air inlet of feed inlet side, biogas passes through from top layer desulfurizing agent, and on to Under, it successively by desulfurizing agent, is finally exported from tower bottom gas outlet, the sulfur dioxide in biogas is desulfurized agent absorption.Desulfurizing agent makes After a period of time, it need to replace in time.It replaces the process of desulfurizing agent: opening tower bottom blind plate, desulfurizing agent is automatic under the effect of gravity It glides, is skidded off from discharge port.The desulfurizing agent skidded off is by sunning reproducible utilization.Desulfurizing agent is TFC ferric oxide desulfurizer.Desulfurization Agent regeneration is completed using sunning method, only needs the high temperature resistant airing field of 50 ㎡.It is total that high temperature resistant airing field should be located at company The open ventilation ground in portion.Biogas inputs vehicle-mounted methane by gasing pump and compresses and liquefies the desulfurizing tower air inlet of can packing machine continually Ground injection, desulfurization is exported from gas outlet after biogas passes through desulfurizing tower, by first group of compressor compresses to 8MPa, and from water elution The input of canister air inlet.

Step 2: washing decarburization

Decarburization water washing tank is GB713 steel plate of pressure vessel material, proof pressure 12MPa.Decarbonizing process is washed in decarburization It is completed in water washing tank.Including adding the processes such as water, pressurization, decarburization, canned, extraction, washing, recycling.

Add water, step is completed at normal temperatures and pressures, clear water is injected water washing tank by high pressure water-injection pump, until water washing tank holds Product 1/2 stays 1/2 space to continue pressurized water injection.The pure water of water quality requirement free from admixture, avoids contamination precipitation, causes equipment pipeline Blocking.

Pressurization, closes all valves, continues to inject water into tank by high pressure water-injection pump, until tank internal water pressure rises to 8.0MPa, water account for 9/10 volume of tank body.1/10 space is left as gas collection area.

Decarburization will be pressed into water washing tank by the desulfurization biogas of the first of the compressor group of compressor boost to 8.0MPa. Desulfurization biogas is sprayed from bottom ventilation pipe micropore, is mixed with water in tank and along cross after air inlet indentation decarburization water washing tank Partition is successively risen by (as seen in figs. 5-6) midfeather, diaphragm plate.

In uphill process, biogas and water are mixed to form solution-airmixture, and have enough strokes to make carbon dioxide and water Interaction, carbon dioxide are dissolved in water.When gas-liquid mixture rises to tank deck, carbon dioxide is filled by water under high pressure It point absorbing and liquefies, biogas is purified as main components methane, become decarburization biogas --- the methane containing a small amount of carbon dioxide.

Methane gas at the top of water washing tank after decarburization, enters second group of compressor of compressor by top gas outlet, pipeline Super charge mouth.

It is canned, it is high-pressure carbon dioxide water mixed solution after methane gas separation, passes through pressure reducing valve from washing pot bottom Door outflow, and be potted in pressurized tank.The pressurized tank for installing high-pressure carbon dioxide aqueous solution is the pressure vessel being separately configured, by Steel plate of pressure vessel is made, proof pressure 10MPa.

It extracts, is potted in the carbon dioxide water mixed solution in pressurized tank due to moisture content, can be used for the gas of polyhouse-based agriculture Body fertilizer.Canned carbon dioxide is connect by pipeline with the surge tank being reserved in agricultural greenhouse, valve is opened, by titanium dioxide Carbon liquid body is discharged into (as shown in figure 11) surge tank, since liquid pressure-reducing to normal pressure, carbon dioxide is separated from water in surge tank, Carbon dioxide is directly ejected into agricultural greenhouse, increases gas concentration lwevel in greenhouse, promotes crop yield.

After wash water recycling carbon dioxide is separated from water, liquid water is stayed in surge tank, and recycling can be recycled, can also discharge In farmland.

Step 3: adsorption dewatering

Including the processes such as adsorption dewatering and dehydrating agent regeneration.

Adsorption dewatering, the adsorbent for biogas dehydration is mainly the materials such as silica gel, aluminium oxide or magnesia.Corollary equipment For drain sump (as Figure 7-9), tank is interior to fill dehydrated adsorbent, and tank body is manufactured using GB713 steel plate of pressure vessel, tolerance pressure Power 12MPa, operating pressure 8MPa.Drain sump need to be equipped with two sets, to be used alternatingly.Wherein it is a set of for be dehydrated when, it is another set of It is regenerated for dehydrating agent.Dehydrating agent regeneration, using the moisture of the high pressure dry gas removing dehydrating agent after subsequent water removal.By subsequent pressurization The flow for separating 5% or so from pipeline to the dry gas of 25MPa is passed directly into (Fig. 2) and stops in the drain sump of dewatering work, Under the action of high pressure dry gas, the moisture removal for rapidly absorbing dehydrating agent, so that dehydrating agent is dry.After dehydrating agent is dry, close Stopped pipe road, drain sump are stand-by.After completing dehydrating agent drying, biogas pressure reduces and carries moisture, is directly passed through from pipeline (Fig. 2) Biogas before decarburization continues decarburization link into decarbonizing tank.

The dehydrating agent is added from feed inlet and fills up drain sump, and each feed inlet corresponds to a diaphragm plate insulating space, The dehydrating agent in each space is added from corresponding feed inlet.Decarburization biogas is opened after air inlet indentation drain sump along diaphragm plate Mouth passes sequentially through, and forms sufficiently long path, and come into full contact in the process with dehydrating agent, and moisture is dehydrated agent absorption, generates Purify dry gas.

Step 4: auxiliary agent liquefies

Including processes such as injection liquefaction auxiliary agent, the pressurization of purification biological flue gas and biological flue gas liquefaction.

Auxiliary agent liquefy using 2,2- methylpropane or the neat liquid or mixing liquid of 2- methybutane and isomery dodecane.2, 2- methylpropane or 2- methybutane and isomery dodecane ratio are 5-10:5-0.Mating two sets of biogas liquefied tanks are needed, in case handing over For use.The liquefied pot is cylinder, is made of GB713 steel plate of pressure vessel, proof pressure 30MPa, operating pressure is 25MPa.Tank base is equipped with the pipeline of countless microscopic pinholes, for being passed through pressurized dry biogas.

Injection liquefaction auxiliary agent injects selected liquefaction auxiliary agent in liquefied pot under normal pressure, until accounting for the molten product 1/5 of tank body, liquid Face be not mounted on the pipeline that pot bottom is covered with micropore until terminate.

The pressurization of purification biological flue gas need to be pressurized to 25MPa by second group of compression.The purifying biogas for increasing to 25MPa, when de- When water pot needs to remove moisture, 5% flow is separated for drain sump and is dehydrated (Fig. 2), remaining 95% pressurization purifies biological flue gas Input liquefied pot.Drain sump inputs liquefied pot without when being dehydrated, then will all be pressurized purification biological flue gas.

Biological flue gas liquefaction will be passed through one of two liquefied pots (Fig. 2) through the pressurized purification biological flue gas of second group of compression The pipeline for being covered with microscopic pinholes, high pressure purify biological flue gas by micropore injection liquefaction auxiliary agent, while starting and liquefied pot Pot liquid extraction is injected further through high pressure micropore, forms reflux, promote biological flue gas and liquefaction auxiliary agent by connected water injecting pump Solution-airmixture is formed, and as tank body pressure is continuously increased, solution-airmixture liquefies completely.After in-tank mixing thing liquid, The intracorporal pressure of tank is fallen after rise.When the liquefaction pressure tank is stablized in 25MPa, pipeline is automatically cut off, and is switched to another liquefaction In tank.So alternately switch.

Step 5: canned extraction

The processes such as canned, tanked liquefied biological flue gas extracts, liquefaction auxiliary agent recycles including liquefaction biological flue gas.

Liquefying, biological flue gas is canned need to be equipped with special high-pressure storage tank, be made of GB713 steel plate of pressure vessel, proof pressure 30MPa, operating pressure 25MPa.When in biological flue gas liquefied pot with liquefaction biological flue gas injection, pressure stablize in 25MPa, By pressure piping connect biogas storage tank, open valve, will liquefaction biological flue gas inject air accumulator, until in air accumulator pressure with Liquefied pot balance, reaches 25MPa.

Tanked liquefied biological flue gas extracts the surge tank that need to be equipped with as carbon dioxide draw, is held using GB713 pressure Device steel plate is made, compression strength 10MPa.When needing using tanked liquefied biological flue gas, pressure piping is connected into biology combustion Gas storage tank and surge tank open valve, will be passed through surge tank after the decompression of high pressure biological flue gas.When liquefaction biological flue gas is passed through buffering After in tank, pressure quick release, biological flue gas is separated with liquefaction auxiliary agent.Liquefaction auxiliary agent is liquid, sinks and is gathered in surge tank Bottom, biological flue gas are gas, under the driving of pressure, input burner, for users to use.

The recycling of liquefaction auxiliary agent is constantly exported with the biological flue gas that liquefies in storage tank, and a part liquefaction auxiliary agent is gathered in buffering Tank, another part then rest in storage tank as pressure of storage tank is reduced.After the biological flue gas use of storage tank, by pressure Pipe is transferred to buffering pot bottom leakage fluid dram from buffer tank inlet, opens the valve of buffering pot bottom, and the liquefaction of surge tank is stored up Collection is back to storage tank, and liquefaction auxiliary agent is collected to storage tank utilization to be recycled.

There are many multiplicity, the present invention to refer mainly to alkanes, olefines for the liquefaction auxiliary agent.Some methane/auxiliary agents need to be compared with It could liquefy under the conditions of small ratio duty pressure is biggish, then the required pressure under higher ratio is smaller to liquefy for some.This Being not required to too big pressure in the invention preferably higher situation of those ratios also can liquefied auxiliary agent.These auxiliary agents are mainly 2,2 2 Methylpropane or 2- methybutane and isomery dodecane, ratio (2,2 dimethylpropanes or 2- methybutane: isomery dodecane) For 5~10:5~0.Purification biological flue gas-methane accounts for 60% to 80% or less situation in the dissolution molar fraction of these auxiliary agents Under, normal temperature condition pressurization only needs 25MPa or less that can liquefy.And 25MPa is the common pressure of existing compressed natural gas.

The liquefaction auxiliary agent, some are gas with biological flue gas cotransformation, some are then in the case where being decompressed to condition of normal pressure It is still liquid, and is separated with biogas.Still it is the auxiliary agent of liquid under the preferred reduced pressure of the present invention, repeats benefit so that auxiliary agent recycles With, accomplish that auxiliary agent zero is lost liquefaction biological flue gas in use as far as possible, raising liquefaction biological flue gas business efficiency, saving Auxiliary agent production cost.

The biological flue gas liquefaction storage tank, liquefied pot tolerance pressure 30MPa, operating pressure 25MPa are held using GB713 pressure The manufacture of device steel plate.Purified biological flue gas is pressed into high pressure micropore exhaust pipe group by the safe check valves of high pressure gas pipeline, turns to Countless Tiny pores, injection liquefaction auxiliary agent, while liquid being extracted out by high pressure water-injection pump and is injected further through high pressure micropore, it is formed back Stream promotes biological flue gas mix with liquefaction auxiliary agent height, and then in the case where high pressure acts on, is dissolved in liquefaction auxiliary agent, and with the auxiliary agent that liquefies Common liquefaction.

The carrier loader (1) (shown in the 1 of Fig. 2) use the glorious single lesser calorie of five water chestnuts, vehicle body length 4560mm, wide 1610mm, High 1870mm.2710 × 1520 × 325mm of container sizes.

Described four or Pyatyi compressor (2) be core be originate from Zi Gong three strongest ones Cassini VW-0.63/250 compression Machine.

The vehicle-mounted methane compresses and liquefies can packing machine, is to need integrated installation in container together with compressor the above equipment On platform, manufactured machine after assembling is integrated with the functions such as biogas acquisition, purification, compression, liquefaction, canned, and referred to as biogas acquires Liquefy canning cart, as shown in Figure 2.

Its meaning of the surge tank is as follows, after biogas liquefied, using the compressed natural gas for meeting GB17258-2011 standard Steel cylinder canning and storage, tolerance pressure 30MPa, operating pressure 20MPa.Since the liquefied biological flue gas of auxiliary agent is not pure methane Gas cannot directly depressurize utilization as compressed natural gas, it is necessary to by surge tank, liquefaction auxiliary agent separated with biological flue gas, Biological flue gas is converted into gas for using, and liquefaction auxiliary agent repeats recycling and uses.

Surge tank is extracted for biological flue gas, is also used for carbon dioxide draw, tolerance pressure 2MPa, operating pressure 0.1MPa, It is manufactured using stainless steel plate, is designed as cylinder, cylinder both ends spherical surface end socket, high 80cm, diameter 36cm, as shown in figure 12, shape State is similar to liquefied gas bottle, is designed as vertical.Tank upper and lower ends are safety valve.Upper valve controls inlet and gas outlet simultaneously, Inlet is extended with a perfusion tube into tank and is passed directly into tank bottom.Lower valve is for being discharged the liquefaction auxiliary agent for being collected at bottom of bottle.

Desulfurization tank of the invention and its structure are conventional structure.

Embodiment:

By taking Pyatyi compressor set as an example, the workflow of the Marsh gas compression liquefaction can packing machine is shown in Fig. 1 as follows:

1, unit is moved to the biogas centrostigma in integrated network type biogas project with vehicle vehicle, can dispose machine everywhere Group adjusts posture, it is necessary to which adjusting device is horizontal attitude, so that machine equilbrium running and liquefied pot liquid are discharged.

2, started by external power supply with vehicle motor group, generate power, driving device.

3, preliminary desulfurization biogas inputs the desulfurizing tower air inlet source that vehicle-mounted methane compresses and liquefies can packing machine by gasing pump Source constantly infuses, and biogas further adsorbs desulfurization from gas outlet output after passing through desulfurizing tower, is compressed to by one, two, three 8MPa, and inputted from washing decarbonizing tank air inlet.

4, biogas is after decarbonizing tank is washed in input, and from water washing tank lower part, air inlet pipe micropore is ejected, and in water washing tank partition It wriggles and detours upwards, in the process, carbon dioxide is dissolved in water absorption, and methane gas is discharged from tank top gas outlet, and enters Drain sump air inlet.

Washing decarbonizing tank bottom is connected with carbon dioxide sub-packing pot, and the gas concentration lwevel washed in decarbonizing tank reaches certain It after degree, opens carbon dioxide and dispenses tank valve, after canned full carbon dioxide to be packed, close valve and be simultaneously switched to another point In tinning.Liquefied carbon dioxide aqueous mixtures recycling is used for polyhouse-based agriculture gaseous fertilizer.

5, the purification biological flue gas main component after decarburization is methane gas, after the input of drain sump air inlet, in tank body Partition detour, and come into full contact with dehydrated adsorbent, after moisture is dehydrated agent absorption, exported from exhaust outlet.

6, dewatered methane gas is dry biological flue gas, and after second group of compression, pressure reaches 25MPa, and inputs dress There is the liquefied pot of the liquefaction auxiliary agent of 1/5 to 2/5 volume, air inlet pipe micropore ejects from liquefied pot lower part, while passing through high pressure injection Water pump extracts liquid further through in high pressure micropore injection tank out, forms reflux, biological flue gas is promoted to be sufficiently mixed with liquefaction auxiliary agent, And mixing liquid is converted into as the pressure in liquefied pot gradually rises.

7, biological flue gas liquefaction sub-packing pot and main tank are connected, opens valve, main tank liquid is inputted into liquefaction sub-packing pot, this When main tank pressure declined, after main tank pressure revert to 25MPa, close packing tank valve packing after liquefied methane gas use In fuel or motor vehicle fuel.

Thus biogas liquefied canning process is completed, and recycles carbon dioxide-water, biological flue gas-liquefaction auxiliary agent mixed liquor Body product.

5000Nm is handled with day³For the vehicle-mounted methane of biogas compresses and liquefies can packing machine, vehicle fuel 3000Nm is produced daily³, Close 2151 kilograms, about per hour 184 liters (24 hours 3 classes fall duty), 3954 kilograms of withdrawal liquid carbon dioxide.The biogas Compressing and liquefying can packing machine is that auxiliary agent compresses and liquefies system.

Liquefy storage tank, for the independent tank body of liquefied carbon dioxide and methane after methane purification separation.Wherein carbon dioxide liquid Change storage tank and is resistant to 10MPa pressure；Methane liquefaction storage tank is resistant to 30MPa pressure.High-pressure hose and liquefied pot are used when accepting liquid Valve is opened in connection, and liquefied gas inputs storage tank, when pressure of storage tank is identical as liquefied pot, closes valve.Liquefy titanium dioxide Carbon and biological flue gas mixing liquid storage reservoir.

The present invention realizes Marsh gas compression liquefied pot by the improvement and diminution of the equipment such as desulfurization, decarburization, dehydration, liquefaction The vehicle-mounted mode of dress；It utilizes " auxiliary agent compression method " to realize biogas separation and liquefaction, and produces liquefied carbon dioxide and biology combustion The products such as gas improve the economic benefit of biogas processing；Using electric drive, the rural power grids area of coverage on wide field is realized, Implement biogas processing.The vehicle-mounted methane compresses and liquefies separation device that principles above is built, has the advantage that

(1) Marsh gas compression liquefying plant vehicle-mountedization realizes biogas processing in field mobile operational process, avoids dispersion Agriculture and forestry organic waste material on wide farmland, the serial problem such as collection, transhipment, processing are greatly reduced establishment transport column and invest With agriculture and forestry organic waste material transportation cost.

(2) biogas processes the production method of at source treatment in situ, changes high-volume transport waste materials and waste residue Ineffective way, be transformed into transport finished product high effective model, by stalk marsh gas conversion ratio be 420L/kgTS calculate, at Product transportation cost is only transport stalk 30.114%, can reduce transportation cost 70%.

(3), liquefied biogas is separated using " auxiliary agent compresses and liquefies method ", other than production accounts for 60% methane (LNG), returned Receipts account for 40% carbon dioxide.Its product income: methane gas 0.6Nm³, by 2.5 yuan/Nm³Wholesale price calculates, and is 1.5 yuan；Two Carbonoxide is 0.4Nm³, it is 0.3954 yuan by 500 yuan/ton of wholesale prices.Carbon dioxide revenue growth 26.36% is recycled, significantly Increase biogas and processes economic benefit.

Vehicle-mounted type Marsh gas compression liquefaction can packing machine of the invention is main advanced as follows:

1, flexible, light, removable, small in size, low cost.To implement on the spot for biogas processing in grown place, establish Equipment condition.Based on this, on the field of the length and breadth of land, as long as the coast is clear, the resource of agriculture and forestry organic waste material is available, most Limits expand agriculture and forestry organic waste material development and utilization spatial dimension.

2, Marsh gas compression liquefaction can packing machine vehicle-mountedization changes the agriculture and forestry organic waste material production intensive mode of biogas, avoids big Scale transport stalk needed for set up fleet investment, reduce high-volume transport stalk and transport biogas residue waste transport at Sheet and power cost.

3, vehicle-mounted type Marsh gas compression liquefaction can packing machine changes prior art and only recycles the thinking of methane, while recycling dioxy Change carbon, not only realize low-carbon agriculture development, also adds the byproduct income of biogas processing, make biogas secondary industry economic benefit It increases considerably.

4, above advanced, by 2.5 yuan/Nm of methane³, 500 yuan/ton of calculation of price of carbon dioxide, on the one hand increase biogas On the other hand processing sell income 26.36% reduces industry operation power cost 47.91% and transportation cost 70%, makes biogas Profit is processed from 0.03 yuan/Nm³Increase to 0.544 yuan/Nm³, reversed the infeasible situation of the previous economic benefit of the industry.

5, recycle carbon dioxide, be applied to modern installations agricultural gaseous fertilizer, can not only increase crop yield 70% to 90%, also dissolve agriculture low-carbon mode production requirement and reduces the lance that CO2 emission and population growth need agricultural product to increase production Shield.

Claims

1. a kind of vehicle-mounted methane compression separation liquefaction can packing machine, comprising: carrier loader (1), can packing machine unit (10), it is described canned Machine unit (10) is mounted on the platform of the carrier loader (1), it is characterised in that: the can packing machine unit (10) includes desulfurizing tower (3), decarbonizing tank (4), drain sump (5), biogas liquefied tank (6) are washed, are followed in series to form by pipeline；

The can packing machine unit (10) further includes compressor (2), and the compressor (2) is divided into two groups, first group be connected on it is described Between desulfurizing tower (3), washing decarbonizing tank (4), second group is connected between the drain sump (5), biogas liquefied tank (6)；

The washing decarbonizing tank (4) is vertical partition formula water washing tank, is closed tank, inner vertical is provided with midfeather (49) Former and later two halfth areas will be divided into tank body, midfeather (49) side and washing decarbonizing tank (4) inner wall are connected and fixed envelope Extremely, there are gap (410) with washing decarbonizing tank (4) inner wall for the other side；It is vertically square in washing decarbonizing tank (4) tank body There are multiple washing decarbonizing tank diaphragm plates (48) to horizontally disposed, region separates two halves by midfeather between adjacent diaphragm plate, each The washing decarbonizing tank diaphragm plate (48) is provided with opening, and neighbouring washing decarbonizing tank diaphragm plate opening is placed in Halfth area of front and back, and the opening is set to the midfeather (49) and shuts end；Washing decarbonizing tank (4) bottom is provided with washing Decarbonizing tank leakage fluid dram (42), top are provided with washing decarbonizing tank exhaust outlet (41), and washing decarbonizing tank feed liquor is provided with above side wall Mouthful (43), the external pure water water source of washing decarbonizing tank inlet (43), be provided with below tank wall wash decarbonizing tank into Port (44), washing decarbonizing tank air inlet (44) is the long tube for being horizontally inserted into tank body, the inner end head closing of insertion, insertion It is provided on segment length's pipe ventilating microhole (47), and compressor outlet side described in external first group.

2. a kind of vehicle-mounted methane compression separation liquefaction can packing machine according to claim 1, it is characterised in that: the compression Machine (2) is Pyatyi compressor, is first group of compressor after the series connection of one or two three-stage blowers, after the series connection of four Pyatyi compressors For second group of compressor；Desulfurization biogas pressure after first group of compressor compresses enters to 7-8MPa The washing decarbonizing tank (4)；Dehydration methane gas pressure after second group of compressor compresses enters institute to 25MPa State biogas liquefied tank (6).

3. a kind of vehicle-mounted methane compression separation liquefaction can packing machine according to claim 1 or 2, it is characterised in that: described Desulfurizing tower (3), washing decarbonizing tank (4) are arranged side by side in front of the carrier loader (1) platform and are fixed on bracket, horizontal institute State biogas liquefied tank (6), the drain sump (5) is respectively two and front and back is arranged in parallel in the carrier loader (1) rear, two The drain sump (5) is suspended from setting, the compressor (2) right above the biogas liquefied tank (6) by bracket (100) and is placed in institute It states between desulfurizing tower (3) and biogas liquefied tank (6)；

The external biogas source of air inlet (31) on desulfurizing tower (3) top, its underpart gas outlet (32) pass through desulfurization biogas pipeline (8) inlet end of first group of compressor is connected, under the outlet side of first group of compressor and the washing decarbonizing tank (4) The air inlet (44) in portion passes through first group of compressed gas pipeline one (91) connection, washing decarbonizing tank (4) top vent (41) It is connected in parallel the drain sump air inlet (52) of two described drain sump (5) one end by first group of compressed gas pipeline two (92), two Institute is connected by first group of compressed gas pipeline three (93) after the drain sump gas outlet (51) of a drain sump (5) other end is in parallel The inlet end of second group of compressor is stated, the outlet side of second group of compressor passes through second group of compressed gas pipeline (101) connection High pressure gas pipeline entrance (65) at the top of the biogas liquefied tank (6).

4. a kind of vehicle-mounted methane compression separation liquefaction can packing machine according to claim 2, it is characterised in that: the desulfurization Tower (3) is vertical closed tank, and built-in several diaphragm plates, adjacent diaphragm plate is staggered notch, and slightly has a down dip to notch end, Desulfurizing agent is filled in its tower body, and is provided with air inlet (31), gas outlet (32), feed inlet (33), discharge port (34), it is described de- The external biogas source of air inlet (31) of sulphur tower, the gas outlet (32) connect first group of compressor inlet end；The air inlet Mouth (31), gas outlet (32) are that long tube grafting forms, and the feed inlet (33) is vertically arranged positioned at top of the tank, the feed inlet (33) it horizontal grafting and is connected to the air inlet (31) on side wall, the discharge port (34) is vertically arranged positioned at tank base, institute It states horizontal grafting on discharge port (34) side wall and is connected to the gas outlet (32).

5. a kind of vehicle-mounted methane compression separation liquefaction can packing machine according to claim 1 or 2, it is characterised in that: described Drain sump (5) is horizontal closed tank, and internal longitudinal direction, which is vertically arranged with vertical clapboard (58), to be divided into former and later two in tank body Halfth area, vertical clapboard (58) top are connected and fixed with inner tank wall, and there are gap, the drain sumps for bottom and inner tank wall (5) internal to fill dehydrated adsorbent and be parallel to each other in left-right direction and be vertically arranged with multiple drain sump diaphragm plates (57), phase Region separates two halves by midfeather between adjacent diaphragm plate, is provided with opening, phase at the top of each drain sump diaphragm plate (57) The opening of the adjacent drain sump diaphragm plate (57) is placed in former and later two halfth areas, and drain sump (5) left and right ends are respectively set There are drain sump air inlet (52), drain sump gas outlet (51), the drain sump air inlet (52) connects the washing decarbonizing tank row Port (41), the drain sump gas outlet (51) connect second group of compressor inlet end of the compressor (2), and top is provided with Drain sump feed inlet (53), bottom are provided with drain sump discharge port (54)；The drain sump (5) is that two alternatings in parallel make With, it is provided with the drain sump feed inlet (53), drain sump discharge port (54) between the adjacent drain sump diaphragm plate (57), The adjacent drain sump feed inlet (53) is placed in above the drain sump and separates halfth area of front and back by diaphragm plate (58) and arranges side by side Cloth.

6. a kind of vehicle-mounted methane compression separation liquefaction can packing machine according to claim 1 or 2, it is characterised in that: described Biogas liquefied tank (6) is vertical closed tank, and there is liquefaction auxiliary agent (67) underfill in tank body, biogas liquefied tank (6) bottom Portion is provided with liquid material inlet and outlet (64), and top is provided with high pressure gas pipeline entrance (65), and the high pressure gas pipeline entrance (65) is Built-in high pressure gas pipeline, the one section of single tube and left and right two-way is separated by its bottom that the high pressure gas pipeline is arranged by top vertical The high pressure gas pipeline branch pipe (651) being vertically arranged is constituted, and the bottom end of the high pressure gas pipeline branch pipe is immersed in the liquefaction auxiliary agent (67) in and it is connected to the horizontal high pressure appendix branch pipe (652) being laterally arranged, is set on the horizontal high pressure appendix branch pipe (652) It is equipped with high pressure micropore, the liquid material inlet and outlet (64) is L-type passages and its opening is towards horizontal direction, and Vertical Channel is interior to be arranged Feed liquor expects pipe (641), feed liquor expects pipe (641) bottom end are that inlet is located at outside the Vertical Channel, the liquid in-out expects pipe (641) top is extended down to the top in the biogas liquefied tank (6), and liquid in-out expects pipe top is provided with high pressure micropore, described High pressure gas pipeline entrance (65) connects the outlet side of second group of compressor of the compressor (2), biogas liquefied tank (6) top Portion is provided with safety valve, pressure gauge, and the biogas liquefied tank (6) is that two parallel connections are used alternatingly, and the biogas liquefied tank (6) is Two parallel connections are used alternatingly.

7. a kind of vehicle-mounted methane compression separation liquefaction can packing machine according to claim 6, it is characterised in that: the liquefaction Auxiliary agent is the above alkane of five carbon or alkene liquefaction auxiliary agent, and volume accounts for the molten long-pending 1/5-2/5 of tank body, and the liquefaction auxiliary agent is 2,2 two Methylpropane and isomery dodecane or one of 2- methybutane and the mixture of isomery dodecane, 2 in the mixture, 2 dimethylpropanes and isomery dodecane weight fraction ratio are 5~10:5~0,2- methybutane and isomery in the mixture Dodecane weight fraction ratio is 5~10:5~0.

8. a kind of vehicle-mounted methane compression separation liquefaction of vehicle-mounted methane compression separation liquefaction can packing machine described in claim 1 Method, it is characterised in that: each steps are as follows, and following steps carry out at normal temperature:

Step 1: biogas to be processed is passed through in desulfurizing tower (3) by air inlet (31), is filled in the desulfurizing tower (3) Desulfurizing agent carries out reacting absorption desulfurization with biogas to be processed, and biogas is desulfurized purification；

Step 2: the biogas after step 1 desulfurization is discharged by the gas outlet (32) of the desulfurizing tower and is passed through the of compressor One group of compressor, gas pressure is 8.0MPa after compression, and biogas is pressurized after first group of compression；

Step 3: biogas pressurized in step 2 is passed through the washing decarbonizing tank by washing decarbonizing tank air inlet (44) (4) in, pure water, biogas and pure water are passed through in the washing decarbonizing tank (4) by the washing decarbonizing tank inlet (43) The aqueous solution of the carbon dioxide obtained after interior hybrid reaction, with pure water hybrid reaction passes through the washing decarbonizing tank leakage fluid dram (42) it is discharged, the biogas after decarburization separates is that biological flue gas passes through washing decarbonizing tank exhaust outlet (41) discharge；

Step 4: the biological flue gas being discharged after decarburization in step 3 is passed through the drain sump by drain sump air inlet (52) (5) in, adsorption dewatering is carried out with the dehydrated adsorbent filled in it and is reacted, the drying biological flue gas obtained after dehydration passes through Drain sump gas outlet (51) discharge；

Step 5: the biological flue gas that step 4 is discharged further is pressurizeed by second group of compressor of the compressor, is compressed Gas pressure is 25MPa afterwards, and biological flue gas is pressurizeed after second group of compression；

Step 6: the drying biological flue gas after pressurizeing in step 5 is passed through into high pressure gas pipeline entrance (65) again and is passed through the biogas In liquefied pot (6), dry biological flue gas with liquefy after auxiliary agent (67) mixed, biological flue gas is liquefied storage；

The liquefaction auxiliary agent is that the above alkane of five carbon or alkene liquefaction auxiliary agent, volume account for the molten long-pending 1/5-2/5 of tank body, the liquefaction Auxiliary agent is 2,2 dimethylpropanes and isomery dodecane or one of 2- methybutane and the mixture of isomery dodecane, 2,2 two The weight fraction ratio of methylpropane and isomery dodecane or 2- methybutane and isomery dodecane mixture is 5~10:5~0.