CN203307291U

CN203307291U - Crude oil dehydrating device

Info

Publication number: CN203307291U
Application number: CN2013203591907U
Authority: CN
Inventors: 杨继新
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-13
Filing date: 2013-06-13
Publication date: 2013-11-27
Anticipated expiration: 2023-06-13

Abstract

The utility model relates to a crude oil dehydrating device, consisting of an oil feed pump, a waste heat heater, an impurity filter, an integrated water distribution unit, a vacuum low temperature dehydration unit and an oil discharge pump which are connected with one another through pipelines, wherein the integrated water distribution unit is a relatively airtight tank, and an emulsion breaking filter material, a water distribution filter element, a flotation generator and a liquid level controller are arranged in the integrated water distribution unit; an oil inlet III, an oil outlet III, an air inlet and a water outlet are formed in the tank; a water outlet electromagnetic valve is arranged at the water outlet; the emulsion breaking filter material is high coarse fiber material polymer and is transversely arranged at the lower part of the oil inlet and is in tight contact with the inner wall of the tank; the water distribution filter element is made from an oleophylic and hydrophobic high polymer material; an oil outlet port is connected with the oil outlet through a pipeline; the flotation generator is arranged at the lower part in the tank and consists of tube banks which are communicated with one another, and a plurality of micro-pores are formed in the flotation generator; and the air inlet is formed outside the tank. The crude oil dehydrating devices can efficiently and quickly finish a dehydration process of crude oil by using industrial waste heat and a simple physical principle, and needs simple equipment, is low in running cost and is worthy of popularization and application.

Description

Crude dehydrating plant

Technical field

The utility model relates to petrochemical field, especially refers to a kind of crude dehydrating plant.

Background technology

From the crude oil of extraction well, generally all contain the water of some amount, and crude oil water containing many can cause waste to accumulating, increase equipment, many power consumptions; Water majority in crude oil contains salt, has accelerated the corrosion of equipment, pipeline and pipeline; In refining process, when water and crude oil were heated together, water is vaporized expanding rapidly outside oil, and pressure rise affects refinery's normal running and quality product, even can blast.Therefore before outer output oil, need dewater, make water content require to be no more than 0.5%.Ionization dehydration is current industry common technology, and better but will waste in a large number electric energy, on the other hand, the heat that oil field or refinery have again the remaining hot water of a large amount of afterheat steams more than 100 ℃, 80 ℃ of left and right wastes dehydrating effect.An existing patent No. is 02115875.4 patent of invention that is called electric dewatering apparatus for crude oil, disclose a kind of apparatus for electrodewatering: electric dewatering apparatus for crude oil of the present invention adopts semi-conducting electrode or with the metal electrode of coated semiconductor, when water content in crude oil increase, specific conductivity increase, can avoid overcurrent tripping, service voltage can not descend much and the impact dehydration yet simultaneously.Electric dewatering apparatus for crude oil of the present invention can be saved power consumption greatly, and stable operation technique improves dehydration, ratio of desalinization.Can be adapted to the dehydration pretreatment technology of oil field high water-content crude oil.To water content up to 90% dehydrating of crude oil after, moisturely be less than 2%, and can reduce approximately 50% left and right of power consumption.This device technique is on existing ionization dehydration technique basis, to have done certain improvement, saved energy consumption, but integral device is relatively complicated, investment is high, and with respect to production cost, energy consumption remains major portion, so its structure and method need to improve.

Summary of the invention

Technical problem to be solved in the utility model be for above-mentioned prior art present situation, provide a kind of simple in structure, application is convenient, can take full advantage of waste heat, crude dehydrating plant that production cost is low.

The utility model solves the problems of the technologies described above the technical scheme adopted: by pipeline, connect to form crude dehydrating plant by oil-feed pump, heater heated by waste heat, contaminant filter, total score water unit, vacuum low temperature dewatering unit and oil drain pump.

As improvement, described heater heated by waste heat is the closed cabinet body structure, has oil-in I, oil outlet I, and box house has interchanger, and afterheat steam or remaining hot water can enter cycle heat exchange, thereby crude oil is heated.Oil-in I is connected with oil-feed pump 1 pipe.

Improve, described contaminant filter is the sealed shell of tank structure again, and built-in filter core has oil-in II, oil outlet II on tank body, crude oil by the time granule foreign wherein can be filtered out.Oil-in II is connected with the oil outlet I pipe of heater heated by waste heat.

Improve, described total score water unit is relative sealed shell of tank again, built-in breakdown of emulsion filter material, minute water filter core, air supporting producer, level control instrument.On tank body, have oil-in III, oil outlet III, inlet mouth and water outlet, water outlet is provided with out water solenoid valve, the breakdown of emulsion filter material is high robust fibre material polymer, be horizontally placed on oil-in bottom and inner tank wall close contact, divide the water filter core to be made by the macromolecular material of oleophilic drainage, its oil outlet end is connected by pipeline with oil outlet III, the air supporting producer is arranged in tank body position on the lower, by the comb be interconnected, formed, the above has a plurality of micropores, inlet mouth is placed in outside tank, level control instrument is arranged on tank body lower part, vertical insertion type is installed from bottom to top, magnetic valve is installed on water outlet, magnetic valve is connected with the level control instrument line.Oil-in III is connected with contaminant filter oil outlet II pipe.

Improve, described vacuum low temperature dewatering unit is relatively airtight tank structure again, is comprised of built-in spray thrower, reactor, automatic froth breaker and external condenser, vacuum pump.Top center has oil-in IV, top side is to having bleeding point, the bottom forward has sewage draining exit, bottom side is to having oil outlet IV, vacuum pump is connected with vacuum tank top bleeding point by pipeline, condenser, and spray thrower is the umbrella nozzle structure, and reactor forms the parallel position of tank interior near oil-in IV that be placed in by a plurality of La Xige circles, automatically froth breaker is comprised of infrared switch and automatic blow off valve valve air relief, is arranged on the vacuum tank middle part.Oil-in IV is connected with total score water unit oil outlet III pipe, and oil outlet IV is connected with the oil extraction pump line.

Compared with prior art, the utility model adopts high fiber breakdown of emulsion filter material, air supporting to divide water law, fractionated polymer water filter core and industrial exhaust heat cryogenic vacuum dewatering Integrated using, efficiently remove free-water and emulsified water in crude oil, efficient and convenient, cost is low, be well suited for promoting the use of.

The accompanying drawing explanation

Fig. 1 is the structure principle chart of the utility model embodiment;

Fig. 2 is the detailed structure view of piece number 4 in Fig. 1;

Fig. 3 is the detailed structure view of piece number 5 in Fig. 1

Embodiment

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, the present embodiment is to be connected to form by pipeline by oil-feed pump 1, heater heated by waste heat 2, contaminant filter 3, total score water unit 4, vacuum low temperature dewatering unit 5 and oil drain pump 6.Wherein heater heated by waste heat 2 is the closed cabinet body structure, has oil-in I7, oil outlet I8, and box house has interchanger 9, and oil-in I7 is connected with oil-feed pump 1 pipe.Contaminant filter 3 is the sealed shell of tank structure, and built-in filter core 10 has oil-in II11, oil outlet II12 on tank body.Oil-in II11 is connected with the oil outlet I8 pipe of heater heated by waste heat 2.Total score water unit 4 is relative sealed shell of tank structure, and built-in breakdown of emulsion filter material 27, minute water filter core 28, air supporting producer 29, level control instrument 18 form.On tank body, have oil-in III13, oil outlet III14, inlet mouth 17 and water outlet 15, breakdown of emulsion filter material 27 is high robust fibre material polymer, be horizontally placed on oil-in III13 bottom and inner tank wall close contact, divide water filter core 28 to be made by the macromolecular material of oleophilic drainage, its oil outlet end is connected with oil outlet III14 pipe, air supporting producer 29 is arranged in tank body position on the lower, by the comb be interconnected, formed, the above has a plurality of micropores, inlet mouth 17 is placed in outside tank, level control instrument 18 is arranged on tank body lower part, vertical insertion type is installed from bottom to top, water solenoid valve 16 is installed out on water outlet 15, going out water solenoid valve 16 is connected with level control instrument 18 lines.Oil-in III13 is connected with the oil outlet II12 pipe of contaminant filter 3.The vacuum low temperature dewatering unit is relatively airtight tank structure, is comprised of built-in spray thrower 30, reactor 24, automatic froth breaker 25 and external condenser 22, vacuum pump 23.Top center has oil-in IV19, top side is to having bleeding point 21, the bottom forward has sewage draining exit 26, bottom side is to having oil outlet IV20, vacuum pump 23 is connected with vacuum tank top bleeding point 21 by pipeline, condenser 22, and spray thrower 30 is the umbrella nozzle structure, and reactor 24 forms the parallel position of tank interior near oil-in IV19 that be placed in by a plurality of La Xige circles, automatically froth breaker 25 is comprised of infrared switch 31 and automatic blow off valve valve air relief 32, is arranged on the tank body middle part.Oil-in IV19 is connected with the oil outlet III14 pipe of total score water unit 4, and oil outlet IV20 is connected with oil drain pump 6 pipes.

Below use procedure is described as follows to the utility model:

Crude oil to be drained off is pumped to heater heated by waste heat 2 through oil-feed pump 1, utilize producing waste heat heats after entering contaminant filter 3 imurity-removal particles again and enters total score water unit 4 fluid, first through the preliminary breakdown of emulsion of breakdown of emulsion filter material 27, the part air enters air supporting producer 29 through inlet mouth 17 and produces a large amount of micro-bubbles (under the effect in vacuum) simultaneously, these bubbles promote oily floating and the sinking of water, oil enters vacuum low temperature dewatering unit 5 by a minute water filter core 28, most of water is deposited to tank base, level control instrument 18 is controlled out water solenoid valve 16 and is opened water is discharged when the water of precipitation arrives certain liquid level.The crude oil that enters vacuum low temperature dewatering unit 5 also contains a small amount of water, through built-in spray thrower 30, be sprayed onto on reactor 24 and form oil film, inner moisture becomes water vapour and extracts out through vacuum pump 23 while under action of vacuum, being greater than 40 ℃, vapor condenses becomes water to discharge through condenser 22 time, crude oil moisture content after vacuum hydro-extraction is very low, delivers to next process or circular treatment through oil drain pump 6.When vaporization reaction is too strong, on a large amount of oil vacuoles, be rushed to certain position, the infrared switch 31 of froth breaker 25 can start automatic blow off valve valve air relief 32 automatically, and the part air is put into to eliminate oil vacuole.But be choked with filth by sewage draining exit 26 periodic cleaning inside.

The utility model device is by utilizing industrial exhaust heat, and in conjunction with simple physical principle, efficient quick completes the dehydrating of crude oil operation, and equipment is simple, running cost is low, is worthy of popularization very much.

Claims

1. crude dehydrating plant, by oil-feed pump (1), heater heated by waste heat (2), contaminant filter (3), total score water unit (4), vacuum low temperature dewatering unit (5) and oil drain pump (6) connect to form by pipeline, it is characterized in that: heater heated by waste heat (2) is the closed cabinet body structure, have oil-in I (7), oil outlet I (8), box house has interchanger (9), oil-in I (7) is connected with oil-feed pump (1) pipe, contaminant filter (3) is the sealed shell of tank structure, built-in filter core (10), on tank body, have oil-in II (11), oil outlet II (12), oil-in II (11) is connected with oil outlet I (8) pipe of heater heated by waste heat (2), total score water unit (4) is relative sealed shell of tank structure, built-in breakdown of emulsion filter material (27), divide water filter core (28), air supporting producer (29), level control instrument (18), on tank body, have oil-in III (13), oil outlet III (14), inlet mouth (17) and water outlet (15), breakdown of emulsion filter material (27) is high robust fibre material polymer, be horizontally placed on oil-in III (13) bottom and inner tank wall close contact, divide water filter core (28) to be made by the macromolecular material of oleophilic drainage, its oil outlet end is connected with oil outlet III14 pipe, air supporting producer (29) is arranged in tank body position on the lower, by the comb be interconnected, formed, the above has a plurality of micropores, inlet mouth (17) is placed in outside tank, level control instrument (18) is arranged on tank body lower part, vertical insertion type is installed from bottom to top, water solenoid valve (16) is installed out on water outlet (15), oil-in III (13) is connected with oil outlet II (12) pipe of contaminant filter (3).

2. crude dehydrating plant according to claim 1, it is characterized in that: vacuum low temperature dewatering unit (5) are relatively airtight tank structure, by built-in spray thrower (30), reactor (24), automatic froth breaker (25) and external condenser (22), vacuum pump (23) forms, top center has oil-in IV (19), top side is to having bleeding point (21), the bottom forward has sewage draining exit (26), bottom side is to having oil outlet IV (20), vacuum pump (23) passes through pipeline, condenser (22) is connected with vacuum tank top bleeding point (21), spray thrower (30) is the umbrella nozzle structure, reactor (24) is comprised of a plurality of La Xige circles, the parallel position of tank interior near oil-in IV (19) that be placed in, oil-in IV (19) is connected with oil outlet III (14) pipe of total score water unit (4), oil outlet IV (20) is connected with oil drain pump (6) pipe.

3. crude dehydrating plant according to claim 1, it is characterized in that: the water solenoid valve (16) that goes out on total score water unit (4) is connected with level control instrument (18) line.

4. crude dehydrating plant according to claim 1, it is characterized in that: the automatic froth breaker (25) on vacuum low temperature dewatering unit (5) is comprised of infrared switch (31) and automatic blow off valve valve air relief (32), is arranged on the tank body middle part.