CN203777713U - On-line continuous dewatering deoxygenation device for aerospace fuel oil - Google Patents
On-line continuous dewatering deoxygenation device for aerospace fuel oil Download PDFInfo
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- CN203777713U CN203777713U CN201420067161.8U CN201420067161U CN203777713U CN 203777713 U CN203777713 U CN 203777713U CN 201420067161 U CN201420067161 U CN 201420067161U CN 203777713 U CN203777713 U CN 203777713U
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Abstract
The utility model discloses an on-line continuous dewatering deoxygenation device for aerospace fuel oil. The on-line continuous dewatering deoxygenation device comprises a fuel oil feeding system, a nitrogen feeding system, a static pipeline mixer 6, a cyclone separator 13, an oil gas absorption tower 14 and a product oil storage tank 12, wherein the fuel oil feeding system sequentially comprises a to-be-treated fuel oil storage tank 10, an oil feeding pump 9, a liquid flowmeter 8 and an atomizing nozzle 7 along a fuel oil flow direction; the nitrogen feeding system sequentially comprises a nitrogen steel cylinder 1, a gas dryer 3 and a gas flowmeter 4 along a nitrogen flow direction; an inlet of the static pipeline mixer 6 is communicated with the spraying nozzle 7 and an outlet of the gas flowmeter 4, and an outlet of the static pipeline mixer 6 is communicated with an inlet of the cyclone separator 13; an outlet in the bottom of the cyclone separator 13 is communicated with the product oil storage tank 12, and an outlet in the top of the cyclone separator 13 is communicated with an inlet of the oil gas absorption tower 14; the inlet of the oil gas absorption tower 14 is communicated with an outlet in the top of the cyclone separator, and an outlet in the bottom of the oil gas absorption tower 14 is also communicated with the product oil storage tank 12 or another product oil storage tank 12; a tail gas exhausting pipeline is also arranged on the top of the product oil storage tank 12.
Description
Technical field
The utility model relates to Aero-Space fuel oil refining plant field.
Background technology
Aero-Space fuel oil is the fuel oil for airborne vehicle and spacecraft, includes but not limited to aviation kerosine, rocket kerosene, high density hydrocarbon fuel etc.The oxidation stability of Aero-Space fuel oil day by day strengthens for the importance of aerospace flight vehicle.The oxidation stability of fuel oil refer to fuel store for a long time or the situation of being heated under, react with the oxygen being dissolved in fuel, generate the trend of solid deposits.Deposit brings following problem to aircraft engine: (1) stops up fuel nozzle and metering valve, affects engine oil, engine can not be started or stop working; (2) reduce the heat exchange of heat exchange wall, this point is particularly important for the aircraft of High Mach number, needs fuel as the cooling agent of fuselage and engine components in this situation.The dissolved water of Aero-Space fuel oil is the key factor that affects its cryogenic property.For long-time high cruise (environment temperature is low to moderate-45 ℃) or be stored in the situation of utmost point cold environment, the water of dissolved solution in the fuel oil quarrel that can congeal into ice, stops up fuel nozzle, filter, or sharply increases oil circuit resistance, causes fuel feeding fault.Therefore, people wish to remove dissolved oxygen in fuel oil and dissolved water with improve fuel oil storage stability, improve the cryogenic property of fuel oil.
By S.Darrah, shown, the method that describes the various deoxidations of jet fuel in the < < jet fuel method of deoxidation > > of Yi Huang's translations in detail, includes: chemical method, sieve method and fill nitrogen method.But these methods only limit to remove the dissolved oxygen in fuel oil, for removing DeGrain of dissolved water, in fact, in experiment, find, remove the difficulty of the dissolved water in fuel oil much larger than the dissolved oxygen removing in fuel oil.Chemical method and sieve method can destroy or remove the additive in fuel oil, have a strong impact on fuel qualities, and this has seriously limited its practical application.
With the relevant patent of the utility model, mainly contain < < fuel oil dehydration and deoxidation equipment preparation > > (publication number: CN202490466U), its summary is as follows: the utility model discloses a kind of fuel oil dehydration and deoxidation preparation facilities, comprise nitrogen cylinder and closed reactor, described nitrogen cylinder by gas pipeline successively with gas transmission valve, nitrogen decompressor, nitrogen heater, check valve is connected with closed reactor, the output of described gas pipeline in closed reactor is provided with distribution device in gas-fluid, described closed reactor top is provided with discharge duct, on described discharge duct, be provided with drain tap, described closed reactor is connected with finished product oil drum by filling pipeline, on described filling pipeline, be provided with the first valve, described finished product oil drum is connected with vavuum pump by vacuum lead, on described vacuum lead, be provided with the second valve.It utilizes the method for nitrogen partial pressure displacement, by the nitrogen of annotating in fuel oil, form nitrogen spray-dip, the oxygen G&W in fuel oil is displaced, reach the desired moisture oxygen containing minimum index of fuel oil, and there is the advantages such as simple in structure, easy to use, dehydration and deoxidation is effective.But this device is mainly the deoxidation processed for the fuel oil of retaining in servo valve in war preparedness guided missile, adopt dissolved water and dissolved oxygen in nitrogen spray-dip displacement fuel oil, this patent is the processing for small lot fuel oil, has three problems: small batch intermittently operated, and treating capacity is little; The time of nitrogen spray-dip displacement is long; Fuel oil can be carried secretly and loses due to nitrogen.When needs carry out continuous dehydration deoxidation treatment to large batch of Aero-Space fuel oil, the treating apparatus of this patent and processing method thereof are obviously not competent.
In order to solve above-mentioned difficulties, the utility model aims to provide a kind of flow greatly, removes online, continuously the device of dissolved oxygen and dissolved water in fuel oil, and it can connect with tank service truck and filling fuel tank, realizes processing limit, limit and annotates.And device of the present utility model all adopts mechanical part practical function, reliability is high.
Summary of the invention
First aspect, the utility model relates to a kind of Aero-Space fuel oil on-line continuous dehydration and deoxidation device, comprises following equipment:
A. fuel oil feed system, it flows to and comprises successively according to fuel oil: pending fuel reservoir 10, oil-feed pump 9, fluid flowmeter 8 and atomizer 7;
B. nitrogen feed system, it flows to and comprises successively according to nitrogen: nitrogen cylinder 1, gas-drying apparatus 3 and gas flowmeter 4;
C. static pipe-line mixer 6, its entrance is communicated with above-mentioned atomizer 7 and is communicated with the outlet of above-mentioned gas flowmeter 4, and its outlet is communicated with the entrance of following cyclone separator 13;
D. cyclone separator 13, and its entrance is communicated with the outlet of above-mentioned static pipe-line mixer 6, and its outlet at bottom is communicated with product oil storage tank 12, and its top exit is communicated with the entrance of oil gas absorbing tower 14;
E. oil gas absorbing tower 14, and its entrance is communicated with the top exit of described cyclone separator 13, and its outlet at bottom is also communicated with above-mentioned product oil storage tank 12 or with another product oil storage tank 12;
F. product oil storage tank 12, and it is for storing product oil, and are also provided with exhaust emission pipeline at its top.
In the embodiment of first aspect of the present utility model, described pressure atomized fog jet is rotarytype injector, to utilize nozzle inward eddy part to produce liquid in rotation, in convergent passage, accelerate the hollow diffusion taper oil film of ejection, utilize the high speed of liquid and outside air poor and broken, be atomized into the droplet that diameter is less than 2mm.With fuel flow 1.8m
3/ h is example, selects solid conical nozzle, aperture 5.6mm, and 15 ° of atomizing angles, the droplet obtaining is less than 2mm.Select the more nozzle of small-bore, can obtain less droplet, for example the diameter drop of hundreds of microns only.
In the preferred embodiment of first aspect of the present utility model, described static pipe-line mixer is a kind of high-efficiency mixing device that there is no moving component, by being fixed on helical form blade in pipe or hydraulic barrier as mixing strengthening device, make two strands or a plurality of fluids produce cutting, shearing, the rotation of fluid and again mix, reach fine dispersion and well-mixed object between fluid.Compare with traditional mixing apparatus, there is flow process simple, the advantages such as compact conformation, energy consumption are little, small investment, operating flexibility are large, need not keep in repair, good mixing property.
In the preferred embodiment of first aspect of the present utility model, described gas-drying apparatus is two-stage gas drier.
In the preferred embodiment of first aspect of the present utility model, at fuel oil feed system and nitrogen feed system, check valve 5 is set separately.
In the preferred embodiment of first aspect of the present utility model, spark arrester 15 is set on described exhaust emission pipeline.
In the preferred embodiment of first aspect of the present utility model, available helium steel cylinder replaces nitrogen cylinder.
Second aspect, the utility model relates to a kind of Aero-Space fuel oil on-line continuous dehydration and deoxidation method, comprises the following steps:
A. the Forced Mixing in static pipe-line mixer by the Aero-Space fuel oil that contains dissolved oxygen and dissolved water and drying nitrogen, makes nitrogen gas dissolved in this Aero-Space fuel oil and utilize dissolved nitrogen displacement dissolved oxygen and dissolved water wherein;
B. the gas mixture in step a is passed into and in cyclone separator, carry out Oil-gas Separation for the first time, at cyclone separator top exit, discharge the tail gas of carrying a part of Aero-Space fuel oil secretly, at the outlet at bottom of cyclone separator, discharge the Aero-Space fuel oil after dehydration and deoxidation.
In the preferred embodiment of second aspect of the present utility model, also comprise that the above-mentioned tail gas of carrying a part of Aero-Space fuel oil secretly is passed into oil gas absorbing tower carries out Oil-gas Separation for the second time, further obtains the Aero-Space fuel oil after a part of dehydration and deoxidation.
In the preferred embodiment of second aspect of the present utility model, in step a, to after the described Aero-Space fuel oil pressurization that contains dissolved oxygen and dissolved water, by atomizer, be atomized into droplet, and then in described static pipe-line mixer, carry out Forced Mixing with described drying nitrogen.
In the preferred embodiment of second aspect of the present utility model, wherein said drying nitrogen is obtained after two-stage gas drier is dry by technical grade nitrogen.Preferably, the water content of this drying nitrogen is less than 50ppm, is more preferably less than 30ppm, is more preferably less than 20ppm, is more preferably less than 10ppm, is more preferably less than 5ppm, and described ppm calculates based on volume.
In preferred embodiment of the present utility model, the Aero-Space fuel oil that contains dissolved oxygen and dissolved water and the time of staying of drying nitrogen in static pipe-line mixer are 0.02-10 second, preferably 0.08-5 second.
In the utility model, drying nitrogen is 2:1～10:1 with the ratio of the volume flow of the Aero-Space fuel oil that contains dissolved oxygen and dissolved water, preferably 3:1～7:1.
In all foregoing invention contents, can replace drying nitrogen by dry helium gas.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of Aero-Space fuel oil on-line continuous dehydration and deoxidation device of the present utility model.
In Fig. 1, each Reference numeral implication is as follows:
1, nitrogen cylinder; 2, pressure-reducing valve; 3, gas-drying apparatus; 4, gas flowmeter; 5, check valve; 6, static pipe-line mixer; 7, atomizer; 8, fluid flowmeter; 9, oil-feed pump; 10, pending fuel reservoir; 11, filter; 12, product oil storage tank; 13, cyclone separator; 14, oil gas absorbing tower; 15, spark arrester.
Embodiment
By following examples, further illustrate running of the present utility model.Embodiment is only illustrative, and not restrictive.
Flow process described in employing Fig. 1 is tested.Pending Aero-Space fuel oil is selected respectively aviation kerosine (RP-3), high density hydrocarbon HD-01 and rocket kerosene, and it contains dissolved oxygen and dissolved water, and the dissolved oxygen content before processing and the dissolving water yield are as shown in table 1.
Above-mentioned pending Aero-Space fuel oil, with after oil-feed pump 9 pressurizations, is become to droplet by atomizer 7 by this fuel-oil atmozation after fluid flowmeter 8 metered flows of flowing through, spray in static pipe-line mixer 6.Meanwhile, by the nitrogen from nitrogen cylinder 1, after pressure-reducing valve 2 decompressions, gas coming through drier, is down to the water content carrying in nitrogen to be less than 50ppm.Then with after gas flowmeter 4 metering nitrogen flows, nitrogen enters in static pipe-line mixer 6, fully mixes with the droplet of pending fuel oil.
Regulating the volume flow of pending fuel oil and nitrogen to make the ratio of the volume flow of the two is 10:1.
The static pipe-line mixer adopting in experiment has the mixing duct of a plurality of parallel connections, and each mixing duct inside is provided with static mixing intensifying device, and described static mixing intensifying device is helical form blade.While flowing through this helical form blade due to pending fuel oil and drying nitrogen, constantly occur to flow to change and produce eddy current, cause the two in this static state pipe-line mixer, to carry out Forced Mixing.Pending fuel oil and the nitrogen time of staying in this static state pipe-line mixer is 0.02-10 second.Then, the mixture of the two flows in cyclone separator 13.Cyclone separator is to utilize the density contrast between gas-liquid to carry out centrifugation.When fuel oil and nitrogen mixture enter eddy flow chamber with certain pressure from tangential inlet, in chamber, High Rotation Speed produces centrifugal force field, under centrifugal action, because so fuel density is obviously greater than gas meeting centrifugal sedimentation, thereby along the downward turn of wall, finally as underflow, from this cyclone separator bottom, discharge, flow in product oil storage tank 12; Assemble at the nitrogen Ze Hui center that density is little, and along the axis turn that makes progress, finally as overflow, from this cyclone separator top exit, discharge, also can carry the Aero-Space fuel oil after a part of dehydration and deoxidation in gas secretly, this gas enters and in oil gas absorbing tower 14, carries out Oil-gas Separation for the second time.In experiment of the present utility model, this oil gas absorbing tower 14 is vertical cylinders always, and supporting plate is equipped with in bottom, and the whole block of filler is placed on support plate.The nitrogen that is entrained with a small amount of fuel oil enters after this oil gas absorbing tower, when gas-liquid mixture flows downward along packing layer, the filler with high-specific surface area can make gas-liquid contact face become larger, thereby make gas-liquid mass transfer more fully reach more thoroughly effect of separation, in separation process, liquid fuel has gradually to the concentrated trend of tower wall, the fuel reservoir 12 after finally forming wall stream and flowing to another and process; The exhaust outlet on the tank body top of the fuel reservoir 12 gas is processed from this another is discharged, and discharges by spark arrester 15.
Get the aviation kerosine sample after processing, analyze its dissolved oxygen content and dissolved water content, also list in table 1 respectively.
Table 1
Visible, method of the present utility model can realize the very excellent effect that removes dissolved oxygen and dissolved water.The more important thing is, short, treating capacity of method processing time of the present utility model is large, can move continuously, and the device that method of the present utility model is used is also very suitable for being integrated in existing fuel oil filling system, realize the filling of processing limit, limit, than elder generation of the prior art, gather the mode of filling after by batch processing, the utility model obviously has more advantage again.And the pure employing mechanical part of the utility model is realized dehydration and deoxidation, compare with sieve method with traditional chemical method, can guarantee that the quality of fuel oil does not occur deteriorated.
Be not limited to any particular theory, inventor thinks, outstanding technique effect of the present utility model is that the utility model goes against conventional thinking.In conventional treatment thinking, nitrogen is passed through by gas distributor bubbling in pending fuel oil, pending fuel oil is continuous phase, and bubble is decentralized photo, processing restriction due to the gas vent aperture on gas sparging device, the volume that the same time enters in fuel oil is limited, and the contact area between pending fuel oil and nitrogen is little, for the gas that is several times as much as fuel oil volume, fully mixed processing needs the quite a long time, in addition, because bubble has building-up effect, minute bubbles accumulate air pocket very soon, cause contact area further to dwindle.And in the utility model, by atomizer, pending fuel oil atomization is become to droplet, and take droplet as decentralized photo, drying nitrogen is continuous phase, powerful atomizing due to atomizer, the droplet sizes of pending fuel oil can reach below 2 millimeters, even reach below 1mm, the fuel oil that so just can form bigger serface fully mixes with excessive gas, add the violent eddy current melange effect in pipe-line mixer, therefore the contact area between pending fuel oil and nitrogen is very large, therefore nitrogen is easy to be dissolved in pending fuel oil and displacement dissolved water and dissolved oxygen wherein, complete expeditiously at short notice dehydration and deoxidation.In addition, the utility model is gone against conventional thinking, can also realize on-line continuous dehydration and deoxidation process.
Claims (7)
1. an Aero-Space fuel oil on-line continuous dehydration and deoxidation device, comprises following equipment:
A. fuel oil feed system, it flows to and comprises successively according to fuel oil: pending fuel reservoir (10), oil-feed pump (9), fluid flowmeter (8) and atomizer (7);
B. nitrogen feed system, it flows to and comprises successively according to nitrogen: nitrogen cylinder (1), gas-drying apparatus (3) and gas flowmeter (4);
C. static pipe-line mixer (6), its entrance is communicated with above-mentioned atomizer (7) and is communicated with the outlet of above-mentioned gas flowmeter (4), and its outlet is communicated with the entrance of following cyclone separator (13);
D. cyclone separator (13), its entrance is communicated with the outlet of above-mentioned static pipe-line mixer (6), and its outlet at bottom is communicated with product oil storage tank (12), and its top exit is communicated with the entrance of oil gas absorbing tower (14);
E. oil gas absorbing tower (14), its entrance is communicated with the top exit of described cyclone separator (13), and its outlet at bottom is also communicated with above-mentioned product oil storage tank (12) or with another product oil storage tank (12);
F. product oil storage tank (12), it is for storing product oil, and is also provided with exhaust emission pipeline at its top.
2. the device of claim 1, wherein said static pipe-line mixer inside is provided with static mixing intensifying device, and described static mixing intensifying device is selected from baffle plate or helical form blade.
3. the device of claim 1, wherein said atomizer is to become diameter to be less than the atomizer of the droplet of 10 millimeters described pending fuel oil pressurizing atomizing.
4. the device of claim 1, wherein said gas-drying apparatus is two-stage gas drier.
5. the device of claim 1, wherein arranges check valve (5) separately at fuel oil feed system and nitrogen feed system.
6. the device of claim 1 wherein arranges spark arrester (15) on described exhaust emission pipeline.
7. the device of any one in aforementioned claim, wherein replaces nitrogen cylinder with helium steel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067161.8U CN203777713U (en) | 2014-02-17 | 2014-02-17 | On-line continuous dewatering deoxygenation device for aerospace fuel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067161.8U CN203777713U (en) | 2014-02-17 | 2014-02-17 | On-line continuous dewatering deoxygenation device for aerospace fuel oil |
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| Publication Number | Publication Date |
|---|---|
| CN203777713U true CN203777713U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420067161.8U Withdrawn - After Issue CN203777713U (en) | 2014-02-17 | 2014-02-17 | On-line continuous dewatering deoxygenation device for aerospace fuel oil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785195A (en) * | 2014-02-17 | 2014-05-14 | 天津大学 | Online continuous aerospace fuel dehydration and deoxidation device |
| CN106873361A (en) * | 2017-03-06 | 2017-06-20 | 沈阳航天新光集团有限公司 | A kind of fuel oil dehydration and deoxidation apparatus control method based on Self Adaptive Control |
-
2014
- 2014-02-17 CN CN201420067161.8U patent/CN203777713U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785195A (en) * | 2014-02-17 | 2014-05-14 | 天津大学 | Online continuous aerospace fuel dehydration and deoxidation device |
| CN103785195B (en) * | 2014-02-17 | 2016-02-03 | 天津大学 | A kind of Aero-Space fuel oil on-line continuous dehydration and deoxidation device |
| CN106873361A (en) * | 2017-03-06 | 2017-06-20 | 沈阳航天新光集团有限公司 | A kind of fuel oil dehydration and deoxidation apparatus control method based on Self Adaptive Control |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20160203 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |