CN201260899Y

CN201260899Y - Oil vapour recovering equipment

Info

Publication number: CN201260899Y
Application number: CNU2008201501549U
Authority: CN
Inventors: 王金华; 程钢; 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 an oil gas recovery device which mainly solves the technical problems of working efficiency improvement, and the like and adopts the technical scheme that the device is internally provided with a left evaporator and a right evaporator which are respectively connected in series with a left and a right inlet pipes with valves and a right and a left exhaust pipes with valves; the right and the left exhaust pipes with the valves are connected in parallel with exhaust pipes; and the right and the left evaporators are connected with communicating pipes. The oil gas recovery device is suitable for various middle and small oil tanks.

Description

Device for recovering oil and gas

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, diesel oil etc., producing, occasions such as supply and transportation, its storage procedures mostly is to adopt oil tank, in similar departments such as gas stations, the oil tank capacity that uses is little, behind supply certain hour interval, need tank car that fuel oil is transported to the gas station, replenish fuel oil by tank car to oil tank, in the process of perfusion fuel oil, the fluid that enters in the oil tank will squeeze discharge with trapped gas in the jar of isometric(al), 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, if the fuel load by a tank car is 20 cubic metres, in each filling process, the fuel-steam amount that oil tank is thrown into atmosphere is 20.28 kilograms, ton surplus the fuel-steam amount of an annual discharging in gas station can reach 10, the gas station that the whole nation is ten hundreds of, its year, the fuel steam discharge amount can reach 200,000 tons, bring problem to be thus, both increase the fuel oil service cost and wasted precious resources, cause environmental pollution again, obviously, except that above-mentioned gas station example, oil storage container need pour into the occasion of operation, above-mentioned problem is brought in the capital, at this phenomenon, the dealer takes the measure tackled, in oil tank or other tun, add the equipment that reclaims fuel-steam, its recovery method includes condensation method, absorption method, absorption process and membrane separation process etc., wherein to the oil tank of gas station, normally adopt condensation method, its corresponding apparatus is simple in structure, required investment is little, operating technology requires lower, can adapt to the gas station and use popularization, the characteristics of this condensing plant are to adopt the evaporimeter of prior art to be installed on the pipeline of oil tank discharged air and fuel-steam mixture, utilize the cold-producing medium low temperature of evaporimeter, the interior fuel-steam of mixture is condensed be recovered to oil tank, air is discharged from the gas outlet, the fuel-steam that this equipment reclaims can reach 90～95% of its total amount, be discharged into after promptly handling in the air and fuel-steam mixture in the atmosphere, the content of its fuel-steam is 30～40 gram/cubic meters.But; in reclaiming running; evaporimeter can produce the frosting phenomenon; and along with the prolongation frost layer of working time will be more and more thicker, consequently the function of evaporimeter descends with the thickening of frost layer, until completely losing recovering effect; therefore; when practical operation, after corresponding a period of time of operation, stop the evaporimeter operation; after treating that the frost layer melts disappearance voluntarily; restart work again, and the design feature of evaporimeter is to have a splendid provision for thermal insulation, its voluntarily time of defrosting longer; press the operating position statistics of existing equipment; under preferable states, evaporimeter is that operation needed to shut down two days in two days, when state is relatively poor; the evaporimeter operation needed to shut down four days in two days; be that usage ratio of equipment is 50～30%, therefore, the effect that oil gas reclaims operation also obviously descends thereupon.

The utility model content:

Technical problem to be solved in the utility model is, a kind of improved device for recovering oil and gas is provided, and it can make reclaims operation and ceaselessly carry out continuously, improves the efficient that oil gas reclaims.

The technical scheme in the invention for solving the above technical problem is: be provided with evaporimeter in the device for recovering oil and gas, be connected with air inlet pipe and blast pipe on this evaporimeter respectively, air inlet pipe is connected with oil tank, blast pipe is communicated with atmosphere, be characterized in: be provided with a left side in the device, right evaporimeter, left side evaporimeter is parallel with left air inlet pipe and left bank tracheae, left side air inlet pipe is provided with left intake valve and is connected with air inlet pipe, the left bank tracheae is provided with the left bank air valve and is connected with blast pipe, right evaporimeter is parallel with right air inlet pipe and right blast pipe, right air inlet pipe is provided with right intake valve and is connected with air inlet pipe, right blast pipe is provided with right air bleeding valve and is connected with blast pipe, a left side, also be connected with communicating pipe on the right evaporimeter.Device is parallel with two evaporimeters, and by the configuration of its pipeline and valve member, two evaporimeters can realize using by turns supplying apparatus to reclaim operation incessantly.

The utility model adopts the structure of two evaporimeter parallel connections; advance with simple switching; the mode of air bleeding valve; can equivalence finish the recovery operation; at running; when oil gas validity is reclaimed in an evaporimeter frosting influence; promptly switch to another operation; the evaporimeter of shutting down can defrosting under the circulation gaseous mixture condition of precooling; device reclaims oil gas under uninterrupted condition; improve utilization rate of equipment and installations and realize reclaiming to greatest extent oil gas and reduce pollution, and pre-cold energy further improves the heat exchanger effectiveness of evaporimeter, amid all these factors; the utlity model has remarkable economic efficiency and social benefit, and its equipment expense that increases is also little.

Description of drawings:

Fig. 1 is the utility model device for recovering oil and gas schematic diagram.

The specific embodiment:

With reference to Fig. 1, device for recovering oil and gas includes air inlet pipe 1, left and right air inlet pipe 2,2 ', left and right intake valve 3,3 ', left and right air bleeding valve 4,4 ', left and right evaporimeter 5,5 ', left and right blast pipe 6,6 ', communicating pipe 7 and blast pipe 8.

Air inlet pipe 1 is to be connected the gas tank top, and carries the house steward of interior air of gas tank and fuel-steam mixture, and air inlet pipe 1 one ends are communicated with the gas tank inner chamber, and its other end is parallel with left and right air inlet pipe 2,2 ';

Left side air inlet pipe 2, it is provided with left intake valve 3, and left air inlet pipe 2 is connected with air inlet pipe 1 at an end of left intake valve 3, is connected with left evaporimeter 5 at the other end;

Right air inlet pipe 2 ', it is provided with right intake valve 3 ', and right air inlet pipe 2 ' is connected with air inlet pipe 1 at an end of right intake valve 3 ', is connected with right evaporimeter 5 ' at the other end;

Left side evaporimeter 5 is prior aries, and this left side evaporimeter 5 is provided with left front interface 51, is connected in parallel to left air inlet pipe 2 and left bank tracheae 6 on left front interface 51, also is provided with left back interface 52 on left evaporimeter 5, is connected with communicating pipe 7 on left back interface 52;

Right evaporimeter 5 ', structure is identical with left evaporimeter 5, right front interface 51 ' is set on right evaporimeter 5 ', on right front interface 51, be connected in parallel to right air inlet pipe 2 ' and right blast pipe 6 ', on right evaporimeter 5, also be provided with right back interface 52 ', on right back interface 52 ', be connected with left back interface 52 ' and go up identical communicating pipe;

Be respectively arranged with left and right air bleeding valve 4,4 ' on the left and right blast pipe 6,6 ', left and right blast pipe 6,6 ' is connected in parallel to blast pipe 8.

Above-mentioned left and right intake valve 3,3 ' and left and right air bleeding valve 4,4 ' control can adopt manual control or Electromagnetic Control, but also the two has it concurrently.

During the device operation, open left intake valve 3 and right air bleeding valve 4 ', close left bank air valve 4 and right intake valve 3 ', the gaseous mixture of oil tank is arranged to atmosphere from air inlet pipe 1-left air inlet 2-left intake valve 3-left evaporimeter-communicating pipe 7-right evaporimeter 5 '-right blast pipe 6 '-right air bleeding valve 4 '-blast pipe 8, said process is shown in Fig. 1 solid arrow, left side evaporimeter 5 is in the defrosting state, the heat that can make full use of gaseous mixture quickens the defrosting process, the fuel-steam that also can this precooling need reclaim, improve heat exchanger effectiveness, this moment, right evaporimeter 5 ' cooling was in the recovery operation state, was in a liquid state after the fuel-steam condensation and flowed back to oil tank from right evaporimeter 5 '; When frosting and unfavorable recovery appear in right evaporimeter 5 ', open right intake valve 3 ' and left bank air valve 4, close left intake valve 3 and right air bleeding valve 4 ', the gaseous mixture of oil tank is arranged to atmosphere from air inlet pipe 1-right air inlet pipe 2 '-right intake valve 3 '-right evaporimeter 5 '-communicating pipe 7-left evaporimeter 5-left bank tracheae 6-left bank air valve 4-blast pipe 8, said process is shown in Fig. 1 dotted arrow, right evaporimeter 5 ' is in the defrosting state, the heat that can make full use of gaseous mixture equally quickens the defrosting process, the fuel-steam that also can this precooling need reclaim, improve heat exchanger effectiveness, this moment, left evaporimeter 5 coolings were in the recovery operation state, were in a liquid state after the fuel-steam condensation and flowed back to oil tank from left evaporimeter 5.Device can move continuously by said process, thereby overcomes that traditional oils gas recovering device utilization rate of equipment and installations is low, the defective of deficiency in economic performance and contaminated environment.

Claims

1, a kind of device for recovering oil and gas, be provided with evaporimeter in this device, be connected with air inlet pipe and blast pipe on this evaporimeter respectively, air inlet pipe is connected with oil tank, blast pipe is communicated with atmosphere, it is characterized in that: be provided with a left side in the device, right evaporimeter (5,5 '), left side evaporimeter (5) is parallel with left air inlet pipe (2) and left bank tracheae (6), left side air inlet pipe (2) is provided with left intake valve (3) and is connected with air inlet pipe (1), left bank tracheae (6) is provided with left bank air valve (4) and is connected with blast pipe (8), right evaporimeter (5 ') is parallel with right air inlet pipe (2 ') and right blast pipe (6 '), right air inlet pipe (2) is provided with right intake valve (3 ') and is connected with air inlet pipe (1), right blast pipe (6 ') is provided with right air bleeding valve (4 ') and is connected with blast pipe (8), a left side, right evaporimeter (5,5 ') also be connected with communicating pipe (7) on.

2, device for recovering oil and gas according to claim 1 is characterized in that left and right intake valve (3,3 ') and left and right air bleeding valve (4,4 ') are hand control valve or magnetic valve.