CN205360968U - Oil gas low temperature recovery unit - Google Patents
Oil gas low temperature recovery unit Download PDFInfo
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- CN205360968U CN205360968U CN201620117253.1U CN201620117253U CN205360968U CN 205360968 U CN205360968 U CN 205360968U CN 201620117253 U CN201620117253 U CN 201620117253U CN 205360968 U CN205360968 U CN 205360968U
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Abstract
The utility model discloses an oil gas low temperature recovery unit, including oil gas low temperature separation tower, absorption unit and cooling unit, cooling unit connects oil gas low temperature separation tower to make the interior degressive condensation field gradually that forms from the lower part to the upper portion temperature of oil gas low temperature separation tower, the lower part of oil gas low temperature separation tower is equipped with the feed inlet, and the upper portion of oil gas low temperature separation tower is equipped with the gas outlet, it is connected with the gas outlet to adsorb the unit. The utility model is suitable for a connect oil storage device such as various medium and small model oil tanks, convenient to use, vapor recovery system separation is effectual, prevents the oil gas polluted environment that leaks, has also eliminated the potential safety hazard that leaks and bring owing to oil gas in filling station and transportation.
Description
Technical field
This utility model relates to petroleum vapor recovery processing technology field, particularly relates to a kind of oil gas low temperature retracting device.
Background technology
In the place such as gas station, oil truck, in refueling process, transportation, generally have oil gas volatilization out.Wherein, the process refueled has oil gas and enters oil tank, due to volume read-out: recovery oil gas is 1:1-1.2 (namely add one liter of oil have 1 oil gas being raised to 1.2 liters return to oil tank), so when oil gas enters oil tank amount more than volume read-out, tank pressure will certainly raise, when oil tank reaches certain pressure, oil tank will pressure release.The oil tank pressure release of currently the majority gas station is that in tank, gas directly discharges in air, pollutes the environment, also has the danger of fire and blast when oil-gas accumulation.
In addition, summer, oil truck was when transporting oil product (such as gasoline), owing to ambient temperature is high, oil product will certainly evaporate in transportation, causes that tank pressure raises, when pressure is increased to certain value, will release in air, contaminated environment, and containing a large amount of flammable hydro carbons in the gas released, oil gas runs into spark and just has hazard of catch fire, even has the danger causing fuel tank explosion.
Therefore, it is necessary to design a kind of can the flexible Application oil gas treating device in the place such as gas station, oil truck, by petroleum vapor recovery process, it is prevented that oil gas leaks.
Utility model content
The technical problems to be solved in the utility model is in that, it is provided that a kind of oil gas low temperature retracting device that can install and use flexibly.
This utility model solves its technical problem and be the technical scheme is that a kind of oil gas low temperature retracting device of offer, including oil gas carrying out the oil gas cryogenic separation tower of gas-liquid separation process, the gas separated carrying out absorbing unit and the refrigeration unit of adsorption treatment；Described refrigeration unit connects described oil gas cryogenic separation tower, and makes to form, in described oil gas cryogenic separation tower, the condensation field that temperature from the lower to the upper is successively decreased gradually；
The bottom of described oil gas cryogenic separation tower is provided with charging aperture, and the top of described oil gas cryogenic separation tower is provided with gas outlet；Described absorbing unit is connected with described gas outlet.
Preferably, the tower tray that Spaced is arranged is included from the lower to the upper in described oil gas cryogenic separation tower, the refrigeration piping of described refrigeration unit is successively around covering through the described tower tray of each layer, and the cold-producing medium of described refrigeration unit flows to bottom from described oil gas cryogenic separation tower internal upper part in described refrigeration piping.
Preferably, described refrigeration piping also coiling formation refrigeration coil on described tower tray.
Preferably, described oil gas cryogenic separation tower inner bottom part is provided with the holding part of the accommodating condensed fluid separated, and described holding part is positioned at below described charging aperture；
Described holding part connects the opening of described oil gas cryogenic separation tower internal upper part and is provided with the non-return valve preventing fluid from refluxing.
Preferably, the opening of described holding part is provided with liquid collecting swash plate.
Preferably, described oil gas cryogenic separation tower is additionally provided with the liquid discharge outlet connecting described holding part.
Preferably, this oil gas low temperature retracting device also includes the return tank that is connected between described oil gas cryogenic separation top of tower and absorbing unit.
Preferably, described absorbing unit includes the adsorption tanks that at least two overlaps up and down and is connected；One end of described adsorption tanks is provided with the first fit structure, and the other end is provided with second fit structure suitable with described first fit structure of adsorption tanks another described；In adsorption tanks described in each two of overlapping, the first fit structure of adsorption tanks described in matches with the second fit structure of adsorption tanks another described；
The described adsorption tanks being positioned at bottom connect the gas outlet of described oil gas cryogenic separation tower by rewarming pipeline.
Preferably, one end of described adsorption tanks was connected to for the first communicating pipe, and the other end is connected to the second communicating pipe coordinated with the described first communicating pipe socket of adsorption tanks another described；In two the described adsorption tanks overlapped up and down, the second communicating pipe of described adsorption tanks above coordinates with the first communicating pipe socket of the described adsorption tanks being positioned below.
Preferably, described first fit structure is protrude the step in described adsorption tanks one end, and described second fit structure is form the groove at the described adsorption tanks other end；Described in each two of overlapping in adsorption tanks, the step of adsorption tanks described in coordinates at another described in the groove of adsorption tanks.
Preferably, described step be arranged on same one end of described adsorption tanks described first communicating pipe, described first communicating pipe runs through described step and connects inside described adsorption tanks；Described groove and the same one end being arranged on described adsorption tanks described second communicating pipe, described second communicating pipe runs through described groove floor and connects inside described adsorption tanks；Or,
Described step and the same one end being arranged on described adsorption tanks described second communicating pipe, described second communicating pipe runs through described step and connects inside described adsorption tanks；Described groove and the same one end being arranged on described adsorption tanks described first communicating pipe, described first communicating pipe runs through described groove floor and connects inside described adsorption tanks.
Preferably, described absorbing unit also includes U-tube, and described U-tube one end was connected on described first communicating pipe of the described adsorption tanks being positioned at the top.
Preferably, the circumferential lateral surface of described adsorption tanks is provided with the handling portion for being mentioned by these adsorption tanks or put down.
Preferably, described absorbing unit also includes being arranged on the bracing frame that the described adsorption tanks of overlapping are peripheral.
Oil gas low temperature retracting device of the present utility model, it is applicable to connect the oil product storage devices such as various medium and small model oil tanks, petroleum vapor recovery condensation adsorption is processed, easy to use, petroleum vapor recovery good separating effect, the room temperature oil product reclaimed can add oil tank recycling, and prevents oil gas from leaking contaminated environment, also eliminates in gas station and transportation owing to oil gas leaks the potential safety hazard brought.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the oil gas low temperature retracting device of this utility model one embodiment；
Fig. 2 is the structural representation of absorbing unit one embodiment in Fig. 1；
Fig. 3 is the structural representation of adsorption tanks in Fig. 2；
Fig. 4 is the structural representation of another embodiment of absorbing unit in Fig. 1；
Fig. 5 is the structural representation of the oil gas low temperature retracting device of another embodiment of this utility model.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing describes detailed description of the invention of the present utility model in detail.
As it is shown in figure 1, the oil gas low temperature retracting device of this utility model one embodiment, it is used for connecting oil tank, recycles receiving the oil gas in oil tank.This oil gas low temperature retracting device includes oil gas carrying out the oil gas cryogenic separation tower 10 of gas-liquid separation process, the gas separated carrying out absorbing unit 20 and the refrigeration unit 30 of adsorption treatment；Refrigeration unit 30 connects oil gas cryogenic separation tower 10, and makes to be formed in oil gas cryogenic separation tower 10 the condensation field that temperature from the lower to the upper is successively decreased gradually.
The bottom of oil gas cryogenic separation tower 10 is provided with the charging aperture (not shown) receiving oil gas, and the top of oil gas cryogenic separation tower 10 is provided with the gas outlet (not shown) exported by the condensed gas separated；Absorbing unit 20 is connected with gas outlet.Oil gas enters oil gas cryogenic separation tower 10 from bottom, through the condensation field that excess temperature is gradually lowered, the fluid of cooled formation liquid can fall bottom storage or the output of oil gas cryogenic separation tower 10, the gas that can not liquefy in oil gas then rises to the top of oil gas cryogenic separation tower 10, export to absorbing unit 20 from gas outlet, carry out adsorption treatment.The condensation field that temperature is gradually lowered, can carry out condensation separation to oil gas better.
Wherein, oil gas cryogenic separation tower 10 can directly be connected pressure-and-vacuum release valve connect, it is possible to by pipeline connect oil tank top；When oil tank tank pressure superelevation aerofluxus, the oil gas of discharge is directly entered oil gas cryogenic separation tower.The oil gas approaching side of this oil gas low temperature retracting device does not need to arrange power set, thus oil gas does not need the supercharging of power set to enter back into oil gas cryogenic separation tower 10, it thus is avoided that mixture gas concentration height in compression process of oil gas and air sets off an explosion to explosion limit scope.
Including the tower tray 11 that Spaced is arranged in oil gas cryogenic separation tower 10 from the lower to the upper, oil gas flows through each tower tray 11 after entering oil gas cryogenic separation tower 10 from charging aperture from bottom to top.Tower tray 11 can be provided with 6-20 layer.
Oil gas cryogenic separation tower 10 is internal also can be provided with uniform distributor above charging aperture, it is ensured that air-flow uniformly rises, mass transfer enhancement heat-transfer effect.It is provided with silk screen filter demister before the gas outlet of oil gas cryogenic separation tower 10, it is prevented that gas carrying liquid, strengthens separating effect.
Refrigeration unit 30 mainly includes compressor 31, refrigeration piping 32 and capillary tube 33, preferred r134a and the r14 of cold-producing medium that wherein circulates (or iso-butane and propane) azeotrope.One end of refrigeration piping 32 connects the outfan of compressor 31 by capillary tube 33, and capillary tube 33 plays throttling refrigeration effect；The other end of refrigeration piping 32 connects the input of compressor 31；Compressor 31, as power set, orders about cold-producing medium and circulates in refrigeration piping 32 and compressor 31.
Refrigeration piping 32 is successively around covering through each layer of tower tray 11 in oil gas cryogenic separation tower 10, and cold-producing medium flows to bottom from oil gas cryogenic separation tower 10 internal upper part in refrigeration piping 32 so that tower tray 11 temperature from top to bottom gradually rises.Oil gas flows through each tower tray 11 in oil gas cryogenic separation tower 10 and carries out heat exchange with cold-producing medium, and temperature reduces.
Preferably, refrigeration piping 32 is coiling formation refrigeration coil 321 on tower tray 11 also, thus increasing the contact area with tower tray 11, improves the condensation effect of oil gas.Each tower tray 11 all can arrange refrigeration coil 321, it is possible to only refrigeration coil 321 is set on part tower tray 11, specifically can arrange according to practical situation.Further, refrigeration coil 321 can be finned or plank frame or set fin in refrigeration coil 321 periphery, increases refrigeration area.
The condensation field formed by refrigeration unit 20 in oil gas cryogenic separation tower 10, bottom temp is the highest, can be room temperature (running temperature 20 DEG C), and head temperature is minimum, can be low to moderate about-58 DEG C (running temperatures about-42 DEG C).It addition, oil gas cryogenic separation tower 10 inner bottom part is provided with holding part 12, the accommodating condensed fluid separated.Holding part 12 is positioned at below charging aperture, and both separate, it is to avoid the oil gas of entrance is mixed into holding part 12.
In order to prevent fluid from refluxing, the opening of connection oil gas cryogenic separation tower 10 internal upper part of holding part 12 is provided with non-return valve 13, will not pass through non-return valve 13 toward upper reaches hence into the fluid falling into holding part 12.
It addition, the opening of holding part 12 is additionally provided with liquid collecting swash plate 14, the fluid of condensation along liquid collecting swash plate 14, can fall into holding part 12 by check valve plate 13.Oil gas cryogenic separation tower 10 is additionally provided with the liquid discharge outlet of connection holding part 12, for by liquid outputs such as the fluid of storage in holding part 12.The fluid of this output can directly be deposited to oil tank or reprocessing etc..
Absorbing unit 20 includes at least two adsorption tanks 21, and at least two adsorption tanks about 21 overlap and are connected, and forms holistic absorbing unit 20, carries out adsorption treatment to by gas therein.
Wherein, one end of adsorption tanks 21 is provided with the first fit structure, and the other end is provided with second fit structure suitable with the first fit structure of another adsorption tanks 21；In each two adsorption tanks 21 of overlapping, the first fit structure of adsorption tanks 21 matches with the second fit structure of another adsorption tanks 21.By matching of the first fit structure and the second fit structure so that between adsorption tanks 21, firm overlapping together, is not easily disconnected from.
In conjunction with Fig. 1,2, one end of adsorption tanks 21 was connected to for the first communicating pipe 211, and the first communicating pipe 211 that the other end is connected to another adsorption tanks 21 is socketed the second communicating pipe 212 of coordinating；In two adsorption tanks 21 overlapped up and down, the second communicating pipe 212 of adsorption tanks 21 above coordinates with the first communicating pipe 211 socket of the adsorption tanks 21 being positioned below.By being connected of the first communicating pipe 211 and the second communicating pipe 212, it is achieved being connected of two adsorption tanks 21, it is internal with adsorption treatment that gas can pass sequentially through adsorption tanks 21.The socket of the first communicating pipe 211 and the second communicating pipe 212 coordinates, and also makes both connection comparatively seal, not easily leaks gas.Adsorption tanks 21 placement direction in Fig. 1, Fig. 2, the first communicating pipe 211 was connected to the upper end of adsorption tanks 21, and the second communicating pipe 212 was connected to the lower end of adsorption tanks 21.
Specifically, as shown in Figure 2,3, in the present embodiment, the first fit structure is protrude the step 213 in adsorption tanks 21 one end, and the second fit structure is form the groove 214 at adsorption tanks 21 other end；In each two adsorption tanks 21 of overlapping, the step 213 of adsorption tanks 21 coordinates in the groove 214 of another adsorption tanks 21, it is achieved the firm and sealing overlapping of two adsorption tanks 21.During overlapping, the step 213 of adsorption tanks 21 is coordinated with the groove 214 of another adsorption tanks 21, two adsorption tanks 21 can be superimposed together, otherwise during fractionation, simple to operate.
In other embodiments, the first fit structure and the second fit structure can be the structures such as the hasp, the fixation clamp that cooperate, if the firm connection that can realize between adsorption tanks 21.
Further, in the present embodiment, step 213 and the first communicating pipe 211 are arranged on same one end of adsorption tanks 21, run through step 213 first communicating pipe 211 and connect adsorption tanks 21 inside；Groove 214 and the second communicating pipe 212 are arranged on same one end of adsorption tanks 21, second communicating pipe 212 through-going recess 214 bottom surface to connect adsorption tanks 21 internal.The length of the second communicating pipe 212 is preferably no greater than the degree of depth of groove 214, and with non-bulging adsorption tanks 21 bottom surface, after keeping adsorption tanks 21 to overlap, bottom is smooth.
Certainly, in other embodiments, step 213 with the same one end being arranged on adsorption tanks 21 second communicating pipe 212, can run through step 213 second communicating pipe 212 and connect adsorption tanks 20 inside；Groove 214 can with the same one end being arranged on adsorption tanks 21 first communicating pipe 211, first communicating pipe 211 through-going recess 214 bottom surface to connect adsorption tanks 21 internal.In this kind of mode, the length of the first communicating pipe 211 is preferably no greater than the degree of depth of groove 214.
With reference to Fig. 2, adsorption tanks 21 can include tank body 201 and the columned uniform device 202 being arranged in tank body 201.Activated carbon is filled to adsorb in uniform device 202.
Preferably, one end end face of uniform device 202 is provided with multiple through hole, forms air inlet；The air inlet institute of uniform device 202 is at one end towards tank body 201 inner bottom part, and gas uniformly rises through activated carbon after entering tank body 201 by air inlet.The other end end face of uniform device 202 is provided with a through hole, forms venthole, and this venthole and the first communicating pipe 211 connect, the gas after activated carbon concentrated by venthole after from the first communicating pipe 211 exporting tank body 201.
For convenience of the replacing of activated carbon in adsorption tanks 21, step 213 is detachably arranged on one end of adsorption tanks 21, one end of open or close adsorption tanks 21.When needing to change activated carbon, step 213 is taken off on tank body 201, open tank body 201, the replacing etc. of activated carbon can be carried out.Step 213 can be fixed on the tank body 201 of adsorption tanks 21 by modes such as threaded engagement or screw fastenings.
When this absorbing unit 20 uses, by the cooperation of step 213 and groove 214, multiple (such as three) adsorption tanks about 21 are superimposed together, and being socketed the second communicating pipe 212 of the adsorption tanks 21 of first communicating pipe 211 of the adsorption tanks 21 being positioned below and top, it is achieved it is connected between adsorption tanks 21.Form the air inlet of absorbing unit 20 second communicating pipe 212 of the adsorption tanks 21 of bottom, the adsorption tanks 21 of the top form the gas outlet of absorbing unit 20 first communicating pipe 211；Gas from oil gas cryogenic separation tower 10 is delivered in adsorption tanks 21 from air inlet, discharges from gas outlet after sequentially passing through each adsorption tanks 21.
According to the oil and gas content reclaimed, when the adsorption tanks 21 of bottom adsorb saturated, by lifting appliance or manually the adsorption tanks 21 of top are mentioned in the lump, its adsorption tanks 21 with bottom are made to depart from, being taken out by the adsorption tanks 21 of this bottom, other adsorption tanks 21 move down, then the adsorption tanks 21 that another is new are folded into the top, it is continuing with forming new adsorption tanks, to ensure adsorption effect.Adsorb saturated adsorption tanks 21 to concentrate and carry out desorption process, make adsorption tanks 21 to reuse, reduce the wasting of resources.
For convenience of handling adsorption tanks 21, the circumferential lateral surface of adsorption tanks 21 is provided with the handling portion 22 for being mentioned by these adsorption tanks 21 or put down；Handling portion 22 can include one or more in suspension hook, handle and chain sling.
It addition, for preventing rainwater, dust etc. from falling in adsorption tanks 21.Absorbing unit 20 may also include U-tube 23, and one end is connected on the first communicating pipe 211 of the adsorption tanks 21 being positioned at the top, as shown in fig. 1.Certainly, U-tube 23 can also adopt other shape pipe to replace.
Further, as shown in Figure 4, absorbing unit 20 also includes the bracing frame 24 that is arranged on adsorption tanks 21 periphery of overlapping；By bracing frame 24, the adsorption tanks 21 of overlapping are played the effect of protection.
As a kind of embodiment, this bracing frame 24 can include several pillar 241 erected separately in adsorption tanks 21 periphery and several cross bar 242 for supporting adsorption tanks 21, and several cross bars 242 corresponding adsorption tanks 21 respectively are connected between adjacent two piece pillar 241.Accordingly, the circumferential lateral surface of adsorption tanks 21 can be provided with the support portion being supported on cross bar 242.When adsorption tanks 21 are arranged in bracing frame 24, support portion can be resisted against above cross bar 242, keeps the closed state of adsorption tanks 21.This support portion can be formed by handling portion 22；When handling portion 22 is the projective structures such as handle, can use as support portion.
Preferably, cross bar 242 is detachably connected between pillar 241.When changing adsorption tanks 21, it would be desirable to the cross bar 242 around the adsorption tanks 21 of taking-up is pulled down, and larger space of stepping down out is to facilitate the turnover of adsorption tanks 21.
Further, in absorbing unit 20, the adsorption tanks 21 being positioned at bottom connect the gas outlet of oil gas cryogenic separation tower 10 by rewarming pipeline 40；Rewarming pipeline 40 one end connects the air inlet (the second communicating pipes 212 of the adsorption tanks 21 of bottom) of absorbing unit 20, and the other end connects the gas outlet of oil gas cryogenic separation tower 10.The condensed separation of oil gas cryogenic separation tower 10 and the gas temperature that exports is relatively low, before output to absorbing unit 20, along rewarming pipeline 40 flowing, temperature is gradually risen to more than 0 DEG C.
Wherein, rewarming pipeline 40 includes body and is arranged on the fin on body periphery, and arranging of fin increases gas and the heat exchange area of extraneous air in body, improves heat transfer effect.
With reference to Fig. 1, when oil gas low temperature retracting device uses, being connected the top of pressure-and-vacuum release valve or oil tank by pipeline 50, in oil tank, the oil gas of volatilization or recovery is delivered to oil gas cryogenic separation tower 10 by pipeline 50, from bottom to top through condensation field, it flow to oil gas cryogenic separation tower 10 inner top.Wherein, oil gas is cooled in being gradually increasing process, and hydrocarbons therein condenses into liquid and stays on tower tray 11, falls bottom oil gas cryogenic separation tower 10 after gathering, and enters holding part 12 and preserves.The gases such as the oxygen that can not liquefy that is mixed with in oil gas, nitrogen continue the gas outlet risen from oil gas cryogenic separation tower 10 and discharge, by entering absorbing unit 20 after rewarming pipeline 40 rewarming gradually from bottom, through adsorption tanks 21 adsorption treatment, the a small amount of hydro carbons not being liquefied in gas is tightly held by activated carbon, and remaining gas (containing denier methane) is discharged from absorbing unit 20 top.
As shown in Figure 5, the oil gas low temperature retracting device of another embodiment of this utility model, including oil gas cryogenic separation tower 10, absorbing unit 20 and refrigeration unit 30, the structure of oil gas cryogenic separation tower 10, absorbing unit 20 and refrigeration unit 30 and arranging etc. all can refer to relevant in above-mentioned embodiment illustrated in fig. 1 described in, do not repeat them here.
And embodiment illustrated in fig. 1 the difference is that: the oil gas low temperature retracting device of the present embodiment also includes the return tank of top of the tower 50 being connected between oil gas cryogenic separation tower 10 and absorbing unit 20, isolate and be back in oil gas cryogenic separation tower 10 for the air foam in gas that oil gas cryogenic separation tower 10 is exported, remove the gas after air foam and be delivered to absorbing unit 20 from return tank of top of the tower 50 again.
Return tank of top of the tower 50 includes tank body and the demister being arranged in tank body.
Specifically, as shown in Figure 5, the import of return tank of top of the tower 50 connects the gas outlet of oil gas cryogenic separation tower 10 by a pipeline, liquid discharge liquid outlet bottom return tank of top of the tower 50 is connected to oil gas cryogenic separation tower 10 by another pipeline, thus forming a loop by pipeline interconnection between return tank of top of the tower 50 and oil gas cryogenic separation tower 10.The outlet of return tank of top of the tower 50 then connects absorbing unit 20 by rewarming pipeline 40.
When return tank of top of the tower 50 uses, the gas of oil gas cryogenic separation tower 10 output enters in return tank of top of the tower 50 by import, carry out gas-liquid separation further, gas rises and exports to be delivered to absorbing unit 20 from the outlet at top, and liquid then sinks and exports to flow back in oil gas cryogenic separation tower 10 by lower liquid outlet.
To sum up, oil gas low temperature retracting device of the present utility model, overall volume can be arranged compared with existing oil gas recovery processing system miniaturization, convenient, flexible install and use, it is adaptable to connect the oil tank of oil truck or petroleum vapor recovery type gas station, be particularly well-suited to the oil tank of various medium and small model, petroleum vapor recovery is processed, petroleum vapor recovery good separating effect, it is prevented that oil gas leaks contaminated environment, also eliminates in gas station and transportation owing to oil gas leaks the potential safety hazard brought.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in scope of patent protection of the present utility model.
Claims (10)
1. an oil gas low temperature retracting device, it is characterised in that include oil gas carries out oil gas cryogenic separation tower (10) of gas-liquid separation process, the absorbing unit (20) that the gas separated carries out adsorption treatment and refrigeration unit (30)；Described refrigeration unit (30) connects described oil gas cryogenic separation tower (10), and makes to form, in described oil gas cryogenic separation tower (10), the condensation field that temperature from the lower to the upper is successively decreased gradually；
The bottom of described oil gas cryogenic separation tower (10) is provided with charging aperture, and the top of described oil gas cryogenic separation tower (10) is provided with gas outlet；Described absorbing unit (20) is connected with described gas outlet.
2. oil gas low temperature retracting device according to claim 1, it is characterized in that, the tower tray (11) that Spaced is arranged is included from the lower to the upper in described oil gas cryogenic separation tower (10), the refrigeration piping (32) of described refrigeration unit (30) is successively around covering through the described tower tray of each layer (11), and the cold-producing medium of described refrigeration unit (30) flows to bottom from described oil gas cryogenic separation tower (10) internal upper part in described refrigeration piping (32).
3. oil gas low temperature retracting device according to claim 2, it is characterised in that described refrigeration piping (32) also forms refrigeration coil (321) in the upper coiling of described tower tray (11).
4. oil gas low temperature retracting device according to claim 1, it is characterised in that described oil gas cryogenic separation tower (10) inner bottom part is provided with the holding part (12) of accommodating fluid, and described holding part (12) is positioned at below described charging aperture；
Described holding part (12) connects the opening of described oil gas cryogenic separation tower (10) internal upper part and is provided with the non-return valve (13) preventing fluid from refluxing；And/or, the opening of described holding part (12) is provided with liquid collecting swash plate (14)；And/or, described oil gas cryogenic separation tower (10) is additionally provided with the liquid discharge outlet connecting described holding part (12).
5. oil gas low temperature retracting device according to claim 1, it is characterised in that this oil gas low temperature retracting device also includes the return tank of top of the tower (50) being connected between described oil gas cryogenic separation tower (10) and absorbing unit (20).
6. the oil gas low temperature retracting device according to any one of claim 1-5, it is characterised in that described absorbing unit (20) includes the adsorption tanks (21) that at least two overlaps up and down and is connected；One end of described adsorption tanks (21) is provided with the first fit structure, and the other end is provided with second fit structure suitable with described first fit structure of adsorption tanks another described (21)；In adsorption tanks (21) described in each two of overlapping, the first fit structure of adsorption tanks described in (21) matches with the second fit structure of adsorption tanks another described (21)；
The described adsorption tanks (21) being positioned at bottom connect the gas outlet of described oil gas cryogenic separation tower (10) by rewarming pipeline (40).
7. oil gas low temperature retracting device according to claim 6, it is characterized in that, one end of described adsorption tanks (21) is connected to the first communicating pipe (211), and the other end is connected to described first communicating pipe (211) with adsorption tanks another described (21) and is socketed the second communicating pipe (212) coordinated；In two the described adsorption tanks (21) overlapped up and down, second communicating pipe (212) of described adsorption tanks (21) above coordinates with being socketed first communicating pipe (211) of the described adsorption tanks (21) being positioned below.
8. oil gas low temperature retracting device according to claim 7, it is characterized in that, described first fit structure is protrude the step (213) in described adsorption tanks (21) one end, and described second fit structure is form the groove (214) at described adsorption tanks (21) other end；Described in each two of overlapping in adsorption tanks (21), the step (213) of adsorption tanks described in (21) coordinates at another described in the groove (214) of adsorption tanks (21).
9. oil gas low temperature retracting device according to claim 8, it is characterized in that, described step (213) and described first communicating pipe (211) are arranged on same one end of described adsorption tanks (21), and described first communicating pipe (211) is run through described step (213) and connects described adsorption tanks (21) inside；Described groove (214) and described second communicating pipe (212) are arranged on same one end of described adsorption tanks (21), and described second communicating pipe (212) is run through described groove (214) bottom surface and connects described adsorption tanks (21) inside；Or,
Described step (213) and described second communicating pipe (212) are arranged on same one end of described adsorption tanks (21), and described second communicating pipe (212) is run through described step (213) and connects described adsorption tanks (21) inside；Described groove (214) and described first communicating pipe (211) are arranged on same one end of described adsorption tanks (21), and described first communicating pipe (211) is run through described groove (214) bottom surface and connects described adsorption tanks (21) inside.
10. oil gas low temperature retracting device according to claim 7, it is characterized in that, described absorbing unit (20) also includes U-tube (23), and described U-tube (23) one end is connected on described first communicating pipe (211) of the described adsorption tanks (21) being positioned at the top；And/or,
The circumferential lateral surface of described adsorption tanks (21) is provided with the handling portion (22) for being mentioned by these adsorption tanks (21) or put down；And/or,
Described absorbing unit (20) also includes the bracing frame (24) being arranged on described adsorption tanks (21) periphery of overlapping.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117253.1U CN205360968U (en) | 2016-02-05 | 2016-02-05 | Oil gas low temperature recovery unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620117253.1U CN205360968U (en) | 2016-02-05 | 2016-02-05 | Oil gas low temperature recovery unit |
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| CN205360968U true CN205360968U (en) | 2016-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136308A (en) * | 2016-07-19 | 2018-06-08 | 深圳市尚佳能源网络有限责任公司 | Oil gas cryogenic condensation recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136308A (en) * | 2016-07-19 | 2018-06-08 | 深圳市尚佳能源网络有限责任公司 | Oil gas cryogenic condensation recovery system |
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