CN201260898Y

CN201260898Y - Oil vapour recovering equipment by condensation adsorption

Info

Publication number: CN201260898Y
Application number: CNU2008201501534U
Authority: CN
Inventors: 程钢; 王金华; 吕林泉
Original assignee: SHANGHAI AIR CONDITIONER FACTORY
Current assignee: SHANGHAI AIR CONDITIONER FACTORY
Priority date: 2008-06-27
Filing date: 2008-06-27
Publication date: 2009-06-24
Anticipated expiration: 2018-06-27

Abstract

The utility model relates to a cryosorption oil gas recovery device which mainly solves the technical problems of recovery effect improvement, and the like and adopts the technical scheme that the outlet of an evaporator of a refrigerating unit is connected with a communicating pipe which is connected with an adsorption assembly; and the adsorption assembly is connected with an exhaust pipe. The cryosorption oil gas recovery device is suitable for a high-efficiency oil gas recovery device.

Description

Condensation adsorbed oil gas recovering device

Technical field:

The utility model relates to a kind of equipment that uses liquefaction to carry out the separating gas mixture composition, particularly a kind of equipment by condensation.

Background technology:

Fuel oil, as gasoline, a little wet goods, producing, occasions such as supply and transportation, its storage procedures mostly is to adopt oil tank, after the former fuel emission of depositing of this oil tank finishes, again can, in the process of perfusion fuel oil, the fluid that enters in the oil tank will squeeze the gas that accumulates in the jar of discharging equal capacity, this trapped gas is the mixture of air and fuel-steam, usually, fuel-steam content in this mist can reach 1.14 kilograms/cubic metre, to close tankage size bigger when storage, or the oil tank capacity little and jar enormous amount the time, the fuel-steam amount of its annual discharging is very big, this is not only the waste of valuable fuel source and loss economically, but also the pollution problem that can bring serious environmental, at this phenomenon, the dealer has proposed to reclaim the method for oil gas, mainly contain condensation method, absorption method, absorption process and membrane separation process, wherein condensation method is because device structure is simple, advantages such as operating technology is less demanding, use more extensive, its design feature is at the discharge duct of oil tank evaporimeter to be installed, make the fuel-steam that condenses into liquid state be recycled to oil tank, the fuel-steam that this equipment reclaims can reach 90～95% of its total amount, be discharged in the mixture of atmosphere after promptly handling, the content of its fuel-steam is 30～40 gram/cubic meters, but some occasion in actual demand, the index of above-mentioned recovery does not still reach the index of requirement, as require be discharged into the mixture of atmosphere, the content of its fuel-steam is not more than 25 gram/cubic meters, and obviously, existing oil gas reclaimer is to satisfy its demand.

The utility model content:

Technical problem to be solved in the utility model is, a kind of condensation adsorbed oil gas recovering device is provided, and it can reach very perfect recovering effect, reduces the waste of fuel source greatly, obviously improves the environmental protection condition of oil storage container periphery.

The technical scheme in the invention for solving the above technical problem is: condensation adsorbed oil gas recovering device includes refrigeration unit, air inlet pipe and blast pipe, refrigeration unit is connected with air inlet pipe, be characterized in: the outlet of refrigeration unit evaporimeter is connected with communicating pipe, be connected with the bucket import of absorbent module this communicating pipe, the bucket outlet of this absorbent module is connected with blast pipe.Air and fuel-steam mixture enter evaporimeter from oil tank through air inlet pipe, enter absorbent module through condensed mixture through communicating pipe, and the fuel-steam of the liquefaction that is not condensed in the mixture is arranged to atmosphere from blast pipe after the absorption in absorbent module once more.

The utility model adopts the dual recovery technology scheme of condensation and absorption, make in the mixture of discharging oil content less than 25 gram/cubic meters, its recovering effect is significantly improved, not only reduce the inaction loss of precious resources fuel oil, fuel-steam amount harmful in the mixture of discharging reduces greatly, and the occasion that can adapt to the strictness of environmental pollution conditional request reclaims oil gas.

Description of drawings:

Fig. 1 is a condensation adsorbed oil gas recovering device schematic diagram.

The specific embodiment:

With reference to Fig. 1, condensation adsorbed oil gas recovering device includes air inlet pipe 1, blast pipe 2, communicating pipe 3, absorbent module 4, vavuum pump group 5, refrigeration unit 6; Wherein:

Air inlet pipe 1 is to carry the pipeline of air oil vapour mixture, and the one end is connected in the top of oil tank, and the other end is connected in the import 611 of refrigeration unit 6 evaporimeters 61;

Blast pipe 2 is pipelines of discharging condensation absorption back mixture, and the one end is connected in the bucket outlet 42 of absorbent module 4, and the other end leads to atmosphere; Directly be communicated with a straight pipe 10 between air inlet pipe 1 and blast pipe 2, when not using the condensation adsorbent equipment, can open the stop valve 11 on the straight pipe 10, air inlet and exhaust piper 1,2 is communicated with, and the mixture in the oil tank can directly be arranged to atmosphere;

Communicating pipe 3 is to carry the pipeline that reclaims again through condensed mixture, and the one end is connected in the outlet 612 of refrigeration unit 6 evaporimeters 61, and the other end is connected in the bucket import 40 of absorbent module 4;

Absorbent module 4, its main component is a carbon bucket 41, carbon bucket 41 is tubbiness airtight containers, ccontaining adsorbent in the bucket, adsorbent can be the material of activated carbon or other similar functions, be respectively arranged with barrel import 40 and bucket outlet 42 on carbon bucket 41, bucket import 40 is connected with communicating pipe 3, and bucket outlet 42 is connected with the suction line 51 of vavuum pump group 5; On communicating pipe 3 that is connected in barrel import and export 40,42 and blast pipe 2, be respectively arranged with blocked valve 31 and shutoff valve 21;

Vavuum pump group 5 includes suction line 51, vavuum pump 52 and discharge pipe 53, suction line 51 is connected in bucket outlet 42 and blast pipe 2 is state in parallel, the other end of suction line 51 is connected in the import of vavuum pump 52, discharge pipe 53 1 ends are connected in the outlet of vavuum pump 52, and the pouring orifice of its other end and oil tank is connected;

Refrigeration unit 6 and prior art are same or similar, include evaporimeter 61, cryogenic compressor, heat exchanger, separator, pipeline and valve member, can be a single machine two-stage refrigeration unit, the operating temperature of its evaporimeter 61 is-60 ℃ to-70 ℃, usually can make 90% of mixture intermediate fuel oil steam be condensed into liquid state, the refrigerant flow direction of its kind of refrigeration cycle is shown in dotted arrow among Fig. 1.

During the device operation, squeeze the air oil vapour mixture of discharge in the oil tank from air inlet pipe 1-evaporimeter 61-communicating pipe, 3-absorbent module 4-blast pipe 2-atmosphere, its flow process is shown in solid arrow among Fig. 1, dotted arrow is represented the kind of refrigeration cycle refrigerant flow direction among the figure, in the evaporimeter 61 recyclable mixtures 90% of oil content, remaining 10% is adsorbed assembly 40 and absorbs, and in the mixture of atmosphere, the content of oil content generally can not surpass 25 gram/cubic meters in discharging; After device moves a period of time, after adsorbent absorption oil content in the carbon bucket 41 of absorbent module 4 reaches saturation state, device can lose its distinctive adsorption function, for recovering this function, the vavuum pump group is set in the utility model, its operating process is to close shutoff valve 21 and blocked valve 31, start vavuum pump 52, vavuum pump 52 is through 41 suctions of 51 pairs of carbon buckets of suction line, and ccontaining absorbent carries out vacuum analysis in the carbon bucket 41 of sealing, and the oil content of vavuum pump 52 suctions is injected oil tank from discharge pipe 53, adsorbent after the parsing recovers adsorption function, close vavuum pump 52, open shutoff valve 21 and blocked valve 31, device can carry out the operation that oil gas is reclaimed in condensation absorption again; Above-mentioned stop valve 11, shutoff valve 21 and blocked valve 31 can be magnetic valve, also can adopt manual mode.

Claims

1, a kind of condensation adsorbed oil gas recovering device, this device includes refrigeration unit, air inlet pipe and blast pipe, refrigeration unit is connected with air inlet pipe, it is characterized in that: the outlet (612) of refrigeration unit (6) evaporimeter (61) is connected with communicating pipe (3), be connected with the bucket import (40) of absorbent module (4) this communicating pipe (3), the bucket outlet (42) of this absorbent module (4) is connected with blast pipe (3).

2, condensation adsorbed oil gas recovering device according to claim 1, it is characterized in that also being connected with vavuum pump group (5) in the bucket outlet (42) of absorbent module (4), vavuum pump group (5) is connected with oil tank, vavuum pump group (5) and suction line (51) blast pipe (2) in parallel is provided with shutoff valve (21), and communicating pipe (3) is provided with blocked valve (31).